diff options
author | lukem <lukem> | 2003-07-31 07:13:01 +0000 |
---|---|---|
committer | lukem <lukem> | 2003-07-31 07:13:01 +0000 |
commit | 9523248f041c22957d47ec4bed037e2be5d61617 (patch) | |
tree | d7a7d1f79ee44f24a8cd452a941175ed8336720a /net | |
parent | b60deeb68744cc13dfc643c321b1c1244cec7381 (diff) | |
download | pkgsrc-9523248f041c22957d47ec4bed037e2be5d61617.tar.gz |
Import of canonical tnftp 20030825 sources,
to make it easier to track new versions.
Diffstat (limited to 'net')
-rw-r--r-- | net/tnftp/files/src/cmds.c | 2721 | ||||
-rw-r--r-- | net/tnftp/files/src/ftp.c | 2123 | ||||
-rw-r--r-- | net/tnftp/files/src/util.c | 1266 | ||||
-rw-r--r-- | net/tnftp/files/src/version.h | 44 |
4 files changed, 6154 insertions, 0 deletions
diff --git a/net/tnftp/files/src/cmds.c b/net/tnftp/files/src/cmds.c new file mode 100644 index 00000000000..5bc10ea6ac2 --- /dev/null +++ b/net/tnftp/files/src/cmds.c @@ -0,0 +1,2721 @@ +/* $NetBSD: cmds.c,v 1.1.1.1 2003/07/31 07:18:23 lukem Exp $ */ + +/*- + * Copyright (c) 1996-2002 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Luke Mewburn. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, + * NASA Ames Research Center. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * Copyright (c) 1985, 1989, 1993, 1994 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * Copyright (C) 1997 and 1998 WIDE Project. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if 0 +#include <sys/cdefs.h> +#ifndef lint +#if 0 +static char sccsid[] = "@(#)cmds.c 8.6 (Berkeley) 10/9/94"; +#else +__RCSID("$NetBSD: cmds.c,v 1.1.1.1 2003/07/31 07:18:23 lukem Exp $"); +#endif +#endif /* not lint */ +#endif + +/* + * FTP User Program -- Command Routines. + */ + +#include "tnftp.h" + +#include "ftp_var.h" +#include "version.h" + +struct types { + char *t_name; + char *t_mode; + int t_type; + char *t_arg; +} types[] = { + { "ascii", "A", TYPE_A, 0 }, + { "binary", "I", TYPE_I, 0 }, + { "image", "I", TYPE_I, 0 }, + { "ebcdic", "E", TYPE_E, 0 }, + { "tenex", "L", TYPE_L, bytename }, + { NULL } +}; + +sigjmp_buf jabort; +char *mname; + +static int confirm(const char *, const char *); + +static int +confirm(const char *cmd, const char *file) +{ + char line[BUFSIZ]; + + if (!interactive || confirmrest) + return (1); + while (1) { + fprintf(ttyout, "%s %s [anpqy?]? ", cmd, file); + (void)fflush(ttyout); + if (fgets(line, sizeof(line), stdin) == NULL) { + mflag = 0; + fprintf(ttyout, "\nEOF received; %s aborted\n", mname); + clearerr(stdin); + return (0); + } + switch (tolower(*line)) { + case 'a': + confirmrest = 1; + fprintf(ttyout, + "Prompting off for duration of %s.\n", cmd); + break; + case 'p': + interactive = 0; + fputs("Interactive mode: off.\n", ttyout); + break; + case 'q': + mflag = 0; + fprintf(ttyout, "%s aborted.\n", mname); + /* FALLTHROUGH */ + case 'n': + return (0); + case '?': + fprintf(ttyout, + " confirmation options:\n" + "\ta answer `yes' for the duration of %s\n" + "\tn answer `no' for this file\n" + "\tp turn off `prompt' mode\n" + "\tq stop the current %s\n" + "\ty answer `yes' for this file\n" + "\t? this help list\n", + cmd, cmd); + continue; /* back to while(1) */ + } + return (1); + } + /* NOTREACHED */ +} + +/* + * Set transfer type. + */ +void +settype(int argc, char *argv[]) +{ + struct types *p; + int comret; + + if (argc == 0 || argc > 2) { + char *sep; + + fprintf(ttyout, "usage: %s [", argv[0]); + sep = " "; + for (p = types; p->t_name; p++) { + fprintf(ttyout, "%s%s", sep, p->t_name); + sep = " | "; + } + fputs(" ]\n", ttyout); + code = -1; + return; + } + if (argc < 2) { + fprintf(ttyout, "Using %s mode to transfer files.\n", typename); + code = 0; + return; + } + for (p = types; p->t_name; p++) + if (strcmp(argv[1], p->t_name) == 0) + break; + if (p->t_name == 0) { + fprintf(ttyout, "%s: unknown mode.\n", argv[1]); + code = -1; + return; + } + if ((p->t_arg != NULL) && (*(p->t_arg) != '\0')) + comret = command("TYPE %s %s", p->t_mode, p->t_arg); + else + comret = command("TYPE %s", p->t_mode); + if (comret == COMPLETE) { + (void)strlcpy(typename, p->t_name, sizeof(typename)); + curtype = type = p->t_type; + } +} + +/* + * Internal form of settype; changes current type in use with server + * without changing our notion of the type for data transfers. + * Used to change to and from ascii for listings. + */ +void +changetype(int newtype, int show) +{ + struct types *p; + int comret, oldverbose = verbose; + + if (newtype == 0) + newtype = TYPE_I; + if (newtype == curtype) + return; + if (debug == 0 && show == 0) + verbose = 0; + for (p = types; p->t_name; p++) + if (newtype == p->t_type) + break; + if (p->t_name == 0) { + warnx("internal error: unknown type %d.", newtype); + return; + } + if (newtype == TYPE_L && bytename[0] != '\0') + comret = command("TYPE %s %s", p->t_mode, bytename); + else + comret = command("TYPE %s", p->t_mode); + if (comret == COMPLETE) + curtype = newtype; + verbose = oldverbose; +} + +char *stype[] = { + "type", + "", + 0 +}; + +/* + * Set binary transfer type. + */ +/*VARARGS*/ +void +setbinary(int argc, char *argv[]) +{ + + if (argc == 0) { + fprintf(ttyout, "usage: %s\n", argv[0]); + code = -1; + return; + } + stype[1] = "binary"; + settype(2, stype); +} + +/* + * Set ascii transfer type. + */ +/*VARARGS*/ +void +setascii(int argc, char *argv[]) +{ + + if (argc == 0) { + fprintf(ttyout, "usage: %s\n", argv[0]); + code = -1; + return; + } + stype[1] = "ascii"; + settype(2, stype); +} + +/* + * Set tenex transfer type. + */ +/*VARARGS*/ +void +settenex(int argc, char *argv[]) +{ + + if (argc == 0) { + fprintf(ttyout, "usage: %s\n", argv[0]); + code = -1; + return; + } + stype[1] = "tenex"; + settype(2, stype); +} + +/* + * Set file transfer mode. + */ +/*ARGSUSED*/ +void +setftmode(int argc, char *argv[]) +{ + + if (argc != 2) { + fprintf(ttyout, "usage: %s mode-name\n", argv[0]); + code = -1; + return; + } + fprintf(ttyout, "We only support %s mode, sorry.\n", modename); + code = -1; +} + +/* + * Set file transfer format. + */ +/*ARGSUSED*/ +void +setform(int argc, char *argv[]) +{ + + if (argc != 2) { + fprintf(ttyout, "usage: %s format\n", argv[0]); + code = -1; + return; + } + fprintf(ttyout, "We only support %s format, sorry.\n", formname); + code = -1; +} + +/* + * Set file transfer structure. + */ +/*ARGSUSED*/ +void +setstruct(int argc, char *argv[]) +{ + + if (argc != 2) { + fprintf(ttyout, "usage: %s struct-mode\n", argv[0]); + code = -1; + return; + } + fprintf(ttyout, "We only support %s structure, sorry.\n", structname); + code = -1; +} + +/* + * Send a single file. + */ +void +put(int argc, char *argv[]) +{ + char *cmd; + int loc = 0; + char *locfile, *remfile; + + if (argc == 2) { + argc++; + argv[2] = argv[1]; + loc++; + } + if (argc == 0 || (argc == 1 && !another(&argc, &argv, "local-file"))) + goto usage; + if ((argc < 3 && !another(&argc, &argv, "remote-file")) || argc > 3) { + usage: + fprintf(ttyout, "usage: %s local-file [remote-file]\n", + argv[0]); + code = -1; + return; + } + if ((locfile = globulize(argv[1])) == NULL) { + code = -1; + return; + } + remfile = argv[2]; + if (loc) /* If argv[2] is a copy of the old argv[1], update it */ + remfile = locfile; + cmd = (argv[0][0] == 'a') ? "APPE" : ((sunique) ? "STOU" : "STOR"); + if (loc && ntflag) + remfile = dotrans(remfile); + if (loc && mapflag) + remfile = domap(remfile); + sendrequest(cmd, locfile, remfile, + locfile != argv[1] || remfile != argv[2]); + free(locfile); +} + +/* + * Send multiple files. + */ +void +mput(int argc, char *argv[]) +{ + int i; + sigfunc oldintr; + int ointer; + char *tp; + + if (argc == 0 || (argc == 1 && !another(&argc, &argv, "local-files"))) { + fprintf(ttyout, "usage: %s local-files\n", argv[0]); + code = -1; + return; + } + mname = argv[0]; + mflag = 1; + oldintr = xsignal(SIGINT, mintr); + if (sigsetjmp(jabort, 1)) + mabort(); + if (proxy) { + char *cp; + + while ((cp = remglob(argv, 0, NULL)) != NULL) { + if (*cp == '\0' || !connected) { + mflag = 0; + continue; + } + if (mflag && confirm(argv[0], cp)) { + tp = cp; + if (mcase) + tp = docase(tp); + if (ntflag) + tp = dotrans(tp); + if (mapflag) + tp = domap(tp); + sendrequest((sunique) ? "STOU" : "STOR", + cp, tp, cp != tp || !interactive); + if (!mflag && fromatty) { + ointer = interactive; + interactive = 1; + if (confirm("Continue with", "mput")) { + mflag++; + } + interactive = ointer; + } + } + } + goto cleanupmput; + } + for (i = 1; i < argc && connected; i++) { + char **cpp; + glob_t gl; + int flags; + + if (!doglob) { + if (mflag && confirm(argv[0], argv[i])) { + tp = (ntflag) ? dotrans(argv[i]) : argv[i]; + tp = (mapflag) ? domap(tp) : tp; + sendrequest((sunique) ? "STOU" : "STOR", + argv[i], tp, tp != argv[i] || !interactive); + if (!mflag && fromatty) { + ointer = interactive; + interactive = 1; + if (confirm("Continue with", "mput")) { + mflag++; + } + interactive = ointer; + } + } + continue; + } + + memset(&gl, 0, sizeof(gl)); + flags = GLOB_BRACE|GLOB_NOCHECK|GLOB_TILDE; + if (glob(argv[i], flags, NULL, &gl) || gl.gl_pathc == 0) { + warnx("%s: not found", argv[i]); + globfree(&gl); + continue; + } + for (cpp = gl.gl_pathv; cpp && *cpp != NULL && connected; + cpp++) { + if (mflag && confirm(argv[0], *cpp)) { + tp = (ntflag) ? dotrans(*cpp) : *cpp; + tp = (mapflag) ? domap(tp) : tp; + sendrequest((sunique) ? "STOU" : "STOR", + *cpp, tp, *cpp != tp || !interactive); + if (!mflag && fromatty) { + ointer = interactive; + interactive = 1; + if (confirm("Continue with", "mput")) { + mflag++; + } + interactive = ointer; + } + } + } + globfree(&gl); + } + cleanupmput: + (void)xsignal(SIGINT, oldintr); + mflag = 0; +} + +void +reget(int argc, char *argv[]) +{ + + (void)getit(argc, argv, 1, "r+"); +} + +void +get(int argc, char *argv[]) +{ + + (void)getit(argc, argv, 0, restart_point ? "r+" : "w" ); +} + +/* + * Receive one file. + * If restartit is 1, restart the xfer always. + * If restartit is -1, restart the xfer only if the remote file is newer. + */ +int +getit(int argc, char *argv[], int restartit, const char *mode) +{ + int loc, rval; + char *remfile, *locfile, *olocfile; + + loc = rval = 0; + if (argc == 2) { + argc++; + argv[2] = argv[1]; + loc++; + } + if (argc == 0 || (argc == 1 && !another(&argc, &argv, "remote-file"))) + goto usage; + if ((argc < 3 && !another(&argc, &argv, "local-file")) || argc > 3) { + usage: + fprintf(ttyout, "usage: %s remote-file [local-file]\n", + argv[0]); + code = -1; + return (0); + } + remfile = argv[1]; + if ((olocfile = globulize(argv[2])) == NULL) { + code = -1; + return (0); + } + locfile = olocfile; + if (loc && mcase) + locfile = docase(locfile); + if (loc && ntflag) + locfile = dotrans(locfile); + if (loc && mapflag) + locfile = domap(locfile); + if (restartit) { + struct stat stbuf; + int ret; + + if (! features[FEAT_REST_STREAM]) { + fprintf(ttyout, + "Restart is not supported by the remote server.\n"); + return (0); + } + ret = stat(locfile, &stbuf); + if (restartit == 1) { + if (ret < 0) { + warn("local: %s", locfile); + goto freegetit; + } + restart_point = stbuf.st_size; + } else { + if (ret == 0) { + time_t mtime; + + mtime = remotemodtime(argv[1], 0); + if (mtime == -1) + goto freegetit; + if (stbuf.st_mtime >= mtime) { + rval = 1; + goto freegetit; + } + } + } + } + + recvrequest("RETR", locfile, remfile, mode, + remfile != argv[1] || locfile != argv[2], loc); + restart_point = 0; + freegetit: + (void)free(olocfile); + return (rval); +} + +/* ARGSUSED */ +void +mintr(int signo) +{ + + alarmtimer(0); + if (fromatty) + write(fileno(ttyout), "\n", 1); + siglongjmp(jabort, 1); +} + +void +mabort(void) +{ + int ointer, oconf; + + if (mflag && fromatty) { + ointer = interactive; + oconf = confirmrest; + interactive = 1; + confirmrest = 0; + if (confirm("Continue with", mname)) { + interactive = ointer; + confirmrest = oconf; + return; + } + interactive = ointer; + confirmrest = oconf; + } + mflag = 0; +} + +/* + * Get multiple files. + */ +void +mget(int argc, char *argv[]) +{ + sigfunc oldintr; + int ointer; + char *cp, *tp; + int restartit; + + if (argc == 0 || + (argc == 1 && !another(&argc, &argv, "remote-files"))) { + fprintf(ttyout, "usage: %s remote-files\n", argv[0]); + code = -1; + return; + } + mname = argv[0]; + mflag = 1; + restart_point = 0; + restartit = 0; + if (strcmp(argv[0], "mreget") == 0) { + if (! features[FEAT_REST_STREAM]) { + fprintf(ttyout, + "Restart is not supported by the remote server.\n"); + return; + } + restartit = 1; + } + oldintr = xsignal(SIGINT, mintr); + if (sigsetjmp(jabort, 1)) + mabort(); + while ((cp = remglob(argv, proxy, NULL)) != NULL) { + if (*cp == '\0' || !connected) { + mflag = 0; + continue; + } + if (! mflag || !confirm(argv[0], cp)) + continue; + tp = cp; + if (mcase) + tp = docase(tp); + if (ntflag) + tp = dotrans(tp); + if (mapflag) + tp = domap(tp); + if (restartit) { + struct stat stbuf; + + if (stat(tp, &stbuf) == 0) + restart_point = stbuf.st_size; + else + warn("stat %s", tp); + } + recvrequest("RETR", tp, cp, restart_point ? "r+" : "w", + tp != cp || !interactive, 1); + restart_point = 0; + if (!mflag && fromatty) { + ointer = interactive; + interactive = 1; + if (confirm("Continue with", "mget")) + mflag++; + interactive = ointer; + } + } + (void)xsignal(SIGINT, oldintr); + mflag = 0; +} + +/* + * Read list of filenames from a local file and get those + */ +void +fget(int argc, char *argv[]) +{ + char *buf, *mode; + FILE *fp; + + if (argc != 2) { + fprintf(ttyout, "usage: %s localfile\n", argv[0]); + code = -1; + return; + } + + fp = fopen(argv[1], "r"); + if (fp == NULL) { + fprintf(ttyout, "Cannot open source file %s\n", argv[1]); + code = -1; + return; + } + + argv[0] = "get"; + mode = restart_point ? "r+" : "w"; + + for (; + (buf = fparseln(fp, NULL, NULL, "\0\0\0", 0)) != NULL; + free(buf)) { + if (buf[0] == '\0') + continue; + argv[1] = buf; + (void)getit(argc, argv, 0, mode); + } + fclose(fp); +} + +char * +onoff(int bool) +{ + + return (bool ? "on" : "off"); +} + +/* + * Show status. + */ +/*ARGSUSED*/ +void +status(int argc, char *argv[]) +{ + int i; + + if (argc == 0) { + fprintf(ttyout, "usage: %s\n", argv[0]); + code = -1; + return; + } + if (connected) + fprintf(ttyout, "Connected %sto %s.\n", + connected == -1 ? "and logged in" : "", hostname); + else + fputs("Not connected.\n", ttyout); + if (!proxy) { + pswitch(1); + if (connected) { + fprintf(ttyout, "Connected for proxy commands to %s.\n", + hostname); + } + else { + fputs("No proxy connection.\n", ttyout); + } + pswitch(0); + } + fprintf(ttyout, "Gate ftp: %s, server %s, port %s.\n", onoff(gatemode), + *gateserver ? gateserver : "(none)", gateport); + fprintf(ttyout, "Passive mode: %s; fallback to active mode: %s.\n", + onoff(passivemode), onoff(activefallback)); + fprintf(ttyout, "Mode: %s; Type: %s; Form: %s; Structure: %s.\n", + modename, typename, formname, structname); + fprintf(ttyout, "Verbose: %s; Bell: %s; Prompting: %s; Globbing: %s.\n", + onoff(verbose), onoff(bell), onoff(interactive), onoff(doglob)); + fprintf(ttyout, "Store unique: %s; Receive unique: %s.\n", + onoff(sunique), onoff(runique)); + fprintf(ttyout, "Preserve modification times: %s.\n", onoff(preserve)); + fprintf(ttyout, "Case: %s; CR stripping: %s.\n", onoff(mcase), + onoff(crflag)); + if (ntflag) { + fprintf(ttyout, "Ntrans: (in) %s (out) %s\n", ntin, ntout); + } + else { + fputs("Ntrans: off.\n", ttyout); + } + if (mapflag) { + fprintf(ttyout, "Nmap: (in) %s (out) %s\n", mapin, mapout); + } + else { + fputs("Nmap: off.\n", ttyout); + } + fprintf(ttyout, + "Hash mark printing: %s; Mark count: %d; Progress bar: %s.\n", + onoff(hash), mark, onoff(progress)); + fprintf(ttyout, + "Get transfer rate throttle: %s; maximum: %d; increment %d.\n", + onoff(rate_get), rate_get, rate_get_incr); + fprintf(ttyout, + "Put transfer rate throttle: %s; maximum: %d; increment %d.\n", + onoff(rate_put), rate_put, rate_put_incr); + fprintf(ttyout, + "Socket buffer sizes: send %d, receive %d.\n", + sndbuf_size, rcvbuf_size); + fprintf(ttyout, "Use of PORT cmds: %s.\n", onoff(sendport)); + fprintf(ttyout, "Use of EPSV/EPRT cmds for IPv4: %s%s.\n", onoff(epsv4), + epsv4bad ? " (disabled for this connection)" : ""); + fprintf(ttyout, "Command line editing: %s.\n", +#ifdef NO_EDITCOMPLETE + "support not compiled in" +#else /* !def NO_EDITCOMPLETE */ + onoff(editing) +#endif /* !def NO_EDITCOMPLETE */ + ); + fprintf(ttyout, "Version: %s %s\n", FTP_PRODUCT, FTP_VERSION); + if (macnum > 0) { + fputs("Macros:\n", ttyout); + for (i=0; i<macnum; i++) { + fprintf(ttyout, "\t%s\n", macros[i].mac_name); + } + } + code = 0; +} + +/* + * Toggle a variable + */ +int +togglevar(int argc, char *argv[], int *var, const char *mesg) +{ + if (argc == 1) { + *var = !*var; + } else if (argc == 2 && strcasecmp(argv[1], "on") == 0) { + *var = 1; + } else if (argc == 2 && strcasecmp(argv[1], "off") == 0) { + *var = 0; + } else { + fprintf(ttyout, "usage: %s [ on | off ]\n", argv[0]); + return (-1); + } + if (mesg) + fprintf(ttyout, "%s %s.\n", mesg, onoff(*var)); + return (*var); +} + +/* + * Set beep on cmd completed mode. + */ +/*VARARGS*/ +void +setbell(int argc, char *argv[]) +{ + + code = togglevar(argc, argv, &bell, "Bell mode"); +} + +/* + * Set command line editing + */ +/*VARARGS*/ +void +setedit(int argc, char *argv[]) +{ + +#ifdef NO_EDITCOMPLETE + if (argc == 0) { + fprintf(ttyout, "usage: %s\n", argv[0]); + code = -1; + return; + } + if (verbose) + fputs("Editing support not compiled in; ignoring command.\n", + ttyout); +#else /* !def NO_EDITCOMPLETE */ + code = togglevar(argc, argv, &editing, "Editing mode"); + controlediting(); +#endif /* !def NO_EDITCOMPLETE */ +} + +/* + * Turn on packet tracing. + */ +/*VARARGS*/ +void +settrace(int argc, char *argv[]) +{ + + code = togglevar(argc, argv, &trace, "Packet tracing"); +} + +/* + * Toggle hash mark printing during transfers, or set hash mark bytecount. + */ +/*VARARGS*/ +void +sethash(int argc, char *argv[]) +{ + if (argc == 1) + hash = !hash; + else if (argc != 2) { + fprintf(ttyout, "usage: %s [ on | off | bytecount ]\n", + argv[0]); + code = -1; + return; + } else if (strcasecmp(argv[1], "on") == 0) + hash = 1; + else if (strcasecmp(argv[1], "off") == 0) + hash = 0; + else { + int nmark; + + nmark = strsuftoi(argv[1]); + if (nmark < 1) { + fprintf(ttyout, "mark: bad bytecount value `%s'.\n", + argv[1]); + code = -1; + return; + } + mark = nmark; + hash = 1; + } + fprintf(ttyout, "Hash mark printing %s", onoff(hash)); + if (hash) + fprintf(ttyout, " (%d bytes/hash mark)", mark); + fputs(".\n", ttyout); + if (hash) + progress = 0; + code = hash; +} + +/* + * Turn on printing of server echo's. + */ +/*VARARGS*/ +void +setverbose(int argc, char *argv[]) +{ + + code = togglevar(argc, argv, &verbose, "Verbose mode"); +} + +/* + * Toggle PORT/LPRT cmd use before each data connection. + */ +/*VARARGS*/ +void +setport(int argc, char *argv[]) +{ + + code = togglevar(argc, argv, &sendport, "Use of PORT/LPRT cmds"); +} + +/* + * Toggle transfer progress bar. + */ +/*VARARGS*/ +void +setprogress(int argc, char *argv[]) +{ + + code = togglevar(argc, argv, &progress, "Progress bar"); + if (progress) + hash = 0; +} + +/* + * Turn on interactive prompting during mget, mput, and mdelete. + */ +/*VARARGS*/ +void +setprompt(int argc, char *argv[]) +{ + + code = togglevar(argc, argv, &interactive, "Interactive mode"); +} + +/* + * Toggle gate-ftp mode, or set gate-ftp server + */ +/*VARARGS*/ +void +setgate(int argc, char *argv[]) +{ + static char gsbuf[MAXHOSTNAMELEN]; + + if (argc == 0 || argc > 3) { + fprintf(ttyout, + "usage: %s [ on | off | gateserver [port] ]\n", argv[0]); + code = -1; + return; + } else if (argc < 2) { + gatemode = !gatemode; + } else { + if (argc == 2 && strcasecmp(argv[1], "on") == 0) + gatemode = 1; + else if (argc == 2 && strcasecmp(argv[1], "off") == 0) + gatemode = 0; + else { + if (argc == 3) + gateport = xstrdup(argv[2]); + (void)strlcpy(gsbuf, argv[1], sizeof(gsbuf)); + gateserver = gsbuf; + gatemode = 1; + } + } + if (gatemode && (gateserver == NULL || *gateserver == '\0')) { + fprintf(ttyout, + "Disabling gate-ftp mode - no gate-ftp server defined.\n"); + gatemode = 0; + } else { + fprintf(ttyout, "Gate ftp: %s, server %s, port %s.\n", + onoff(gatemode), *gateserver ? gateserver : "(none)", + gateport); + } + code = gatemode; +} + +/* + * Toggle metacharacter interpretation on local file names. + */ +/*VARARGS*/ +void +setglob(int argc, char *argv[]) +{ + + code = togglevar(argc, argv, &doglob, "Globbing"); +} + +/* + * Toggle preserving modification times on retrieved files. + */ +/*VARARGS*/ +void +setpreserve(int argc, char *argv[]) +{ + + code = togglevar(argc, argv, &preserve, "Preserve modification times"); +} + +/* + * Set debugging mode on/off and/or set level of debugging. + */ +/*VARARGS*/ +void +setdebug(int argc, char *argv[]) +{ + if (argc == 0 || argc > 2) { + fprintf(ttyout, "usage: %s [ on | off | debuglevel ]\n", + argv[0]); + code = -1; + return; + } else if (argc == 2) { + if (strcasecmp(argv[1], "on") == 0) + debug = 1; + else if (strcasecmp(argv[1], "off") == 0) + debug = 0; + else { + int val; + + val = strsuftoi(argv[1]); + if (val < 0) { + fprintf(ttyout, "%s: bad debugging value.\n", + argv[1]); + code = -1; + return; + } + debug = val; + } + } else + debug = !debug; + if (debug) + options |= SO_DEBUG; + else + options &= ~SO_DEBUG; + fprintf(ttyout, "Debugging %s (debug=%d).\n", onoff(debug), debug); + code = debug > 0; +} + +/* + * Set current working directory on remote machine. + */ +void +cd(int argc, char *argv[]) +{ + int r; + + if (argc == 0 || argc > 2 || + (argc == 1 && !another(&argc, &argv, "remote-directory"))) { + fprintf(ttyout, "usage: %s remote-directory\n", argv[0]); + code = -1; + return; + } + r = command("CWD %s", argv[1]); + if (r == ERROR && code == 500) { + if (verbose) + fputs("CWD command not recognized, trying XCWD.\n", + ttyout); + r = command("XCWD %s", argv[1]); + } + if (r == COMPLETE) { + dirchange = 1; + updateremotepwd(); + } +} + +/* + * Set current working directory on local machine. + */ +void +lcd(int argc, char *argv[]) +{ + char buf[MAXPATHLEN]; + char *locdir; + + code = -1; + if (argc == 1) { + argc++; + argv[1] = localhome; + } + if (argc != 2) { + fprintf(ttyout, "usage: %s [local-directory]\n", argv[0]); + return; + } + if ((locdir = globulize(argv[1])) == NULL) + return; + if (chdir(locdir) < 0) + warn("local: %s", locdir); + else { + if (getcwd(buf, sizeof(buf)) != NULL) { + fprintf(ttyout, "Local directory now %s\n", buf); + code = 0; + } else + warn("getcwd: %s", locdir); + } + (void)free(locdir); +} + +/* + * Delete a single file. + */ +void +delete(int argc, char *argv[]) +{ + + + if (argc == 0 || argc > 2 || + (argc == 1 && !another(&argc, &argv, "remote-file"))) { + fprintf(ttyout, "usage: %s remote-file\n", argv[0]); + code = -1; + return; + } + if (command("DELE %s", argv[1]) == COMPLETE) + dirchange = 1; +} + +/* + * Delete multiple files. + */ +void +mdelete(int argc, char *argv[]) +{ + sigfunc oldintr; + int ointer; + char *cp; + + if (argc == 0 || + (argc == 1 && !another(&argc, &argv, "remote-files"))) { + fprintf(ttyout, "usage: %s [remote-files]\n", argv[0]); + code = -1; + return; + } + mname = argv[0]; + mflag = 1; + oldintr = xsignal(SIGINT, mintr); + if (sigsetjmp(jabort, 1)) + mabort(); + while ((cp = remglob(argv, 0, NULL)) != NULL) { + if (*cp == '\0') { + mflag = 0; + continue; + } + if (mflag && confirm(argv[0], cp)) { + if (command("DELE %s", cp) == COMPLETE) + dirchange = 1; + if (!mflag && fromatty) { + ointer = interactive; + interactive = 1; + if (confirm("Continue with", "mdelete")) { + mflag++; + } + interactive = ointer; + } + } + } + (void)xsignal(SIGINT, oldintr); + mflag = 0; +} + +/* + * Rename a remote file. + */ +void +renamefile(int argc, char *argv[]) +{ + + if (argc == 0 || (argc == 1 && !another(&argc, &argv, "from-name"))) + goto usage; + if ((argc < 3 && !another(&argc, &argv, "to-name")) || argc > 3) { + usage: + fprintf(ttyout, "usage: %s from-name to-name\n", argv[0]); + code = -1; + return; + } + if (command("RNFR %s", argv[1]) == CONTINUE && + command("RNTO %s", argv[2]) == COMPLETE) + dirchange = 1; +} + +/* + * Get a directory listing of remote files. + * Supports being invoked as: + * cmd runs + * --- ---- + * dir, ls LIST + * mlsd MLSD + * nlist NLST + * pdir, pls LIST |$PAGER + * mmlsd MLSD |$PAGER + */ +void +ls(int argc, char *argv[]) +{ + const char *cmd; + char *remdir, *locfile; + int freelocfile, pagecmd, mlsdcmd; + + remdir = NULL; + locfile = "-"; + freelocfile = pagecmd = mlsdcmd = 0; + /* + * the only commands that start with `p' are + * the `pager' versions. + */ + if (argv[0][0] == 'p') + pagecmd = 1; + if (strcmp(argv[0] + pagecmd , "mlsd") == 0) { + if (! features[FEAT_MLST]) { + fprintf(ttyout, + "MLSD is not supported by the remote server.\n"); + return; + } + mlsdcmd = 1; + } + if (argc == 0) + goto usage; + + if (mlsdcmd) + cmd = "MLSD"; + else if (strcmp(argv[0] + pagecmd, "nlist") == 0) + cmd = "NLST"; + else + cmd = "LIST"; + + if (argc > 1) + remdir = argv[1]; + if (argc > 2) + locfile = argv[2]; + if (argc > 3 || ((pagecmd | mlsdcmd) && argc > 2)) { + usage: + if (pagecmd || mlsdcmd) + fprintf(ttyout, + "usage: %s [remote-path]\n", argv[0]); + else + fprintf(ttyout, + "usage: %s [remote-path [local-file]]\n", + argv[0]); + code = -1; + goto freels; + } + + if (pagecmd) { + char *p; + int len; + + p = getoptionvalue("pager"); + if (EMPTYSTRING(p)) + p = DEFAULTPAGER; + len = strlen(p) + 2; + locfile = xmalloc(len); + locfile[0] = '|'; + (void)strlcpy(locfile + 1, p, len - 1); + freelocfile = 1; + } else if ((strcmp(locfile, "-") != 0) && *locfile != '|') { + if ((locfile = globulize(locfile)) == NULL || + !confirm("output to local-file:", locfile)) { + code = -1; + goto freels; + } + freelocfile = 1; + } + recvrequest(cmd, locfile, remdir, "w", 0, 0); + freels: + if (freelocfile && locfile) + (void)free(locfile); +} + +/* + * Get a directory listing of multiple remote files. + */ +void +mls(int argc, char *argv[]) +{ + sigfunc oldintr; + int ointer, i; + int dolist; + char *mode, *dest, *odest; + + if (argc == 0) + goto usage; + if (argc < 2 && !another(&argc, &argv, "remote-files")) + goto usage; + if (argc < 3 && !another(&argc, &argv, "local-file")) { + usage: + fprintf(ttyout, "usage: %s remote-files local-file\n", argv[0]); + code = -1; + return; + } + odest = dest = argv[argc - 1]; + argv[argc - 1] = NULL; + if (strcmp(dest, "-") && *dest != '|') + if (((dest = globulize(dest)) == NULL) || + !confirm("output to local-file:", dest)) { + code = -1; + return; + } + dolist = strcmp(argv[0], "mls"); + mname = argv[0]; + mflag = 1; + oldintr = xsignal(SIGINT, mintr); + if (sigsetjmp(jabort, 1)) + mabort(); + for (i = 1; mflag && i < argc-1 && connected; i++) { + mode = (i == 1) ? "w" : "a"; + recvrequest(dolist ? "LIST" : "NLST", dest, argv[i], mode, + 0, 0); + if (!mflag && fromatty) { + ointer = interactive; + interactive = 1; + if (confirm("Continue with", argv[0])) { + mflag ++; + } + interactive = ointer; + } + } + (void)xsignal(SIGINT, oldintr); + mflag = 0; + if (dest != odest) /* free up after globulize() */ + free(dest); +} + +/* + * Do a shell escape + */ +/*ARGSUSED*/ +void +shell(int argc, char *argv[]) +{ + pid_t pid; + sigfunc old1; + char shellnam[MAXPATHLEN], *shell, *namep; + int wait_status; + + if (argc == 0) { + fprintf(ttyout, "usage: %s [command [args]]\n", argv[0]); + code = -1; + return; + } + old1 = xsignal(SIGINT, SIG_IGN); + if ((pid = fork()) == 0) { + for (pid = 3; pid < 20; pid++) + (void)close(pid); + (void)xsignal(SIGINT, SIG_DFL); + shell = getenv("SHELL"); + if (shell == NULL) + shell = _PATH_BSHELL; + namep = strrchr(shell, '/'); + if (namep == NULL) + namep = shell; + else + namep++; + (void)strlcpy(shellnam, namep, sizeof(shellnam)); + if (debug) { + fputs(shell, ttyout); + putc('\n', ttyout); + } + if (argc > 1) { + execl(shell, shellnam, "-c", altarg, (char *)0); + } + else { + execl(shell, shellnam, (char *)0); + } + warn("%s", shell); + code = -1; + exit(1); + } + if (pid > 0) + while (wait(&wait_status) != pid) + ; + (void)xsignal(SIGINT, old1); + if (pid == -1) { + warn("Try again later"); + code = -1; + } else + code = 0; +} + +/* + * Send new user information (re-login) + */ +void +user(int argc, char *argv[]) +{ + char acct[80]; + int n, aflag = 0; + + if (argc == 0) + goto usage; + if (argc < 2) + (void)another(&argc, &argv, "username"); + if (argc < 2 || argc > 4) { + usage: + fprintf(ttyout, "usage: %s username [password [account]]\n", + argv[0]); + code = -1; + return; + } + n = command("USER %s", argv[1]); + if (n == CONTINUE) { + if (argc < 3) { + argv[2] = getpass("Password: "); + argc++; + } + n = command("PASS %s", argv[2]); + } + if (n == CONTINUE) { + if (argc < 4) { + (void)fputs("Account: ", ttyout); + (void)fflush(ttyout); + if (fgets(acct, sizeof(acct) - 1, stdin) == NULL) { + fprintf(ttyout, + "\nEOF received; login aborted.\n"); + clearerr(stdin); + code = -1; + return; + } + acct[strlen(acct) - 1] = '\0'; + argv[3] = acct; argc++; + } + n = command("ACCT %s", argv[3]); + aflag++; + } + if (n != COMPLETE) { + fputs("Login failed.\n", ttyout); + return; + } + if (!aflag && argc == 4) { + (void)command("ACCT %s", argv[3]); + } + connected = -1; + getremoteinfo(); +} + +/* + * Print working directory on remote machine. + */ +/*VARARGS*/ +void +pwd(int argc, char *argv[]) +{ + int oldverbose = verbose; + + if (argc == 0) { + fprintf(ttyout, "usage: %s\n", argv[0]); + code = -1; + return; + } + verbose = 1; /* If we aren't verbose, this doesn't do anything! */ + if (command("PWD") == ERROR && code == 500) { + fputs("PWD command not recognized, trying XPWD.\n", ttyout); + (void)command("XPWD"); + } + verbose = oldverbose; +} + +/* + * Print working directory on local machine. + */ +void +lpwd(int argc, char *argv[]) +{ + char buf[MAXPATHLEN]; + + if (argc == 0) { + fprintf(ttyout, "usage: %s\n", argv[0]); + code = -1; + return; + } + if (getcwd(buf, sizeof(buf)) != NULL) { + fprintf(ttyout, "Local directory %s\n", buf); + code = 0; + } else { + warn("getcwd"); + code = -1; + } +} + +/* + * Make a directory. + */ +void +makedir(int argc, char *argv[]) +{ + int r; + + if (argc == 0 || argc > 2 || + (argc == 1 && !another(&argc, &argv, "directory-name"))) { + fprintf(ttyout, "usage: %s directory-name\n", argv[0]); + code = -1; + return; + } + r = command("MKD %s", argv[1]); + if (r == ERROR && code == 500) { + if (verbose) + fputs("MKD command not recognized, trying XMKD.\n", + ttyout); + r = command("XMKD %s", argv[1]); + } + if (r == COMPLETE) + dirchange = 1; +} + +/* + * Remove a directory. + */ +void +removedir(int argc, char *argv[]) +{ + int r; + + if (argc == 0 || argc > 2 || + (argc == 1 && !another(&argc, &argv, "directory-name"))) { + fprintf(ttyout, "usage: %s directory-name\n", argv[0]); + code = -1; + return; + } + r = command("RMD %s", argv[1]); + if (r == ERROR && code == 500) { + if (verbose) + fputs("RMD command not recognized, trying XRMD.\n", + ttyout); + r = command("XRMD %s", argv[1]); + } + if (r == COMPLETE) + dirchange = 1; +} + +/* + * Send a line, verbatim, to the remote machine. + */ +void +quote(int argc, char *argv[]) +{ + + if (argc == 0 || + (argc == 1 && !another(&argc, &argv, "command line to send"))) { + fprintf(ttyout, "usage: %s line-to-send\n", argv[0]); + code = -1; + return; + } + quote1("", argc, argv); +} + +/* + * Send a SITE command to the remote machine. The line + * is sent verbatim to the remote machine, except that the + * word "SITE" is added at the front. + */ +void +site(int argc, char *argv[]) +{ + + if (argc == 0 || + (argc == 1 && !another(&argc, &argv, "arguments to SITE command"))){ + fprintf(ttyout, "usage: %s line-to-send\n", argv[0]); + code = -1; + return; + } + quote1("SITE ", argc, argv); +} + +/* + * Turn argv[1..argc) into a space-separated string, then prepend initial text. + * Send the result as a one-line command and get response. + */ +void +quote1(const char *initial, int argc, char *argv[]) +{ + int i; + char buf[BUFSIZ]; /* must be >= sizeof(line) */ + + (void)strlcpy(buf, initial, sizeof(buf)); + for (i = 1; i < argc; i++) { + (void)strlcat(buf, argv[i], sizeof(buf)); + if (i < (argc - 1)) + (void)strlcat(buf, " ", sizeof(buf)); + } + if (command("%s", buf) == PRELIM) { + while (getreply(0) == PRELIM) + continue; + } + dirchange = 1; +} + +void +do_chmod(int argc, char *argv[]) +{ + + if (argc == 0 || (argc == 1 && !another(&argc, &argv, "mode"))) + goto usage; + if ((argc < 3 && !another(&argc, &argv, "remote-file")) || argc > 3) { + usage: + fprintf(ttyout, "usage: %s mode remote-file\n", argv[0]); + code = -1; + return; + } + (void)command("SITE CHMOD %s %s", argv[1], argv[2]); +} + +#define COMMAND_1ARG(argc, argv, cmd) \ + if (argc == 1) \ + command(cmd); \ + else \ + command(cmd " %s", argv[1]) + +void +do_umask(int argc, char *argv[]) +{ + int oldverbose = verbose; + + if (argc == 0) { + fprintf(ttyout, "usage: %s [umask]\n", argv[0]); + code = -1; + return; + } + verbose = 1; + COMMAND_1ARG(argc, argv, "SITE UMASK"); + verbose = oldverbose; +} + +void +idlecmd(int argc, char *argv[]) +{ + int oldverbose = verbose; + + if (argc < 1 || argc > 2) { + fprintf(ttyout, "usage: %s [seconds]\n", argv[0]); + code = -1; + return; + } + verbose = 1; + COMMAND_1ARG(argc, argv, "SITE IDLE"); + verbose = oldverbose; +} + +/* + * Ask the other side for help. + */ +void +rmthelp(int argc, char *argv[]) +{ + int oldverbose = verbose; + + if (argc == 0) { + fprintf(ttyout, "usage: %s\n", argv[0]); + code = -1; + return; + } + verbose = 1; + COMMAND_1ARG(argc, argv, "HELP"); + verbose = oldverbose; +} + +/* + * Terminate session and exit. + * May be called with 0, NULL. + */ +/*VARARGS*/ +void +quit(int argc, char *argv[]) +{ + + /* this may be called with argc == 0, argv == NULL */ + if (argc == 0 && argv != NULL) { + fprintf(ttyout, "usage: %s\n", argv[0]); + code = -1; + return; + } + if (connected) + disconnect(0, NULL); + pswitch(1); + if (connected) + disconnect(0, NULL); + exit(0); +} + +/* + * Terminate session, but don't exit. + * May be called with 0, NULL. + */ +void +disconnect(int argc, char *argv[]) +{ + + /* this may be called with argc == 0, argv == NULL */ + if (argc == 0 && argv != NULL) { + fprintf(ttyout, "usage: %s\n", argv[0]); + code = -1; + return; + } + if (!connected) + return; + (void)command("QUIT"); + cleanuppeer(); +} + +void +account(int argc, char *argv[]) +{ + char *ap; + + if (argc == 0 || argc > 2) { + fprintf(ttyout, "usage: %s [password]\n", argv[0]); + code = -1; + return; + } + else if (argc == 2) + ap = argv[1]; + else + ap = getpass("Account:"); + (void)command("ACCT %s", ap); +} + +sigjmp_buf abortprox; + +void +proxabort(int notused) +{ + + alarmtimer(0); + if (!proxy) { + pswitch(1); + } + if (connected) { + proxflag = 1; + } + else { + proxflag = 0; + } + pswitch(0); + siglongjmp(abortprox, 1); +} + +void +doproxy(int argc, char *argv[]) +{ + struct cmd *c; + int cmdpos; + sigfunc oldintr; + + if (argc == 0 || (argc == 1 && !another(&argc, &argv, "command"))) { + fprintf(ttyout, "usage: %s command\n", argv[0]); + code = -1; + return; + } + c = getcmd(argv[1]); + if (c == (struct cmd *) -1) { + fputs("?Ambiguous command.\n", ttyout); + code = -1; + return; + } + if (c == 0) { + fputs("?Invalid command.\n", ttyout); + code = -1; + return; + } + if (!c->c_proxy) { + fputs("?Invalid proxy command.\n", ttyout); + code = -1; + return; + } + if (sigsetjmp(abortprox, 1)) { + code = -1; + return; + } + oldintr = xsignal(SIGINT, proxabort); + pswitch(1); + if (c->c_conn && !connected) { + fputs("Not connected.\n", ttyout); + pswitch(0); + (void)xsignal(SIGINT, oldintr); + code = -1; + return; + } + cmdpos = strcspn(line, " \t"); + if (cmdpos > 0) /* remove leading "proxy " from input buffer */ + memmove(line, line + cmdpos + 1, strlen(line) - cmdpos + 1); + argv[1] = c->c_name; + (*c->c_handler)(argc-1, argv+1); + if (connected) { + proxflag = 1; + } + else { + proxflag = 0; + } + pswitch(0); + (void)xsignal(SIGINT, oldintr); +} + +void +setcase(int argc, char *argv[]) +{ + + code = togglevar(argc, argv, &mcase, "Case mapping"); +} + +/* + * convert the given name to lower case if it's all upper case, into + * a static buffer which is returned to the caller + */ +char * +docase(char *name) +{ + static char new[MAXPATHLEN]; + int i, dochange; + + dochange = 1; + for (i = 0; name[i] != '\0' && i < sizeof(new) - 1; i++) { + new[i] = name[i]; + if (islower((unsigned char)new[i])) + dochange = 0; + } + new[i] = '\0'; + + if (dochange) { + for (i = 0; new[i] != '\0'; i++) + if (isupper((unsigned char)new[i])) + new[i] = tolower(new[i]); + } + return (new); +} + +void +setcr(int argc, char *argv[]) +{ + + code = togglevar(argc, argv, &crflag, "Carriage Return stripping"); +} + +void +setntrans(int argc, char *argv[]) +{ + + if (argc == 0 || argc > 3) { + fprintf(ttyout, "usage: %s [inchars [outchars]]\n", argv[0]); + code = -1; + return; + } + if (argc == 1) { + ntflag = 0; + fputs("Ntrans off.\n", ttyout); + code = ntflag; + return; + } + ntflag++; + code = ntflag; + (void)strlcpy(ntin, argv[1], sizeof(ntin)); + if (argc == 2) { + ntout[0] = '\0'; + return; + } + (void)strlcpy(ntout, argv[2], sizeof(ntout)); +} + +char * +dotrans(char *name) +{ + static char new[MAXPATHLEN]; + char *cp1, *cp2 = new; + int i, ostop, found; + + for (ostop = 0; *(ntout + ostop) && ostop < 16; ostop++) + continue; + for (cp1 = name; *cp1; cp1++) { + found = 0; + for (i = 0; *(ntin + i) && i < 16; i++) { + if (*cp1 == *(ntin + i)) { + found++; + if (i < ostop) { + *cp2++ = *(ntout + i); + } + break; + } + } + if (!found) { + *cp2++ = *cp1; + } + } + *cp2 = '\0'; + return (new); +} + +void +setnmap(int argc, char *argv[]) +{ + char *cp; + + if (argc == 1) { + mapflag = 0; + fputs("Nmap off.\n", ttyout); + code = mapflag; + return; + } + if (argc == 0 || + (argc < 3 && !another(&argc, &argv, "mapout")) || argc > 3) { + fprintf(ttyout, "usage: %s [mapin mapout]\n", argv[0]); + code = -1; + return; + } + mapflag = 1; + code = 1; + cp = strchr(altarg, ' '); + if (proxy) { + while(*++cp == ' ') + continue; + altarg = cp; + cp = strchr(altarg, ' '); + } + *cp = '\0'; + (void)strlcpy(mapin, altarg, MAXPATHLEN); + while (*++cp == ' ') + continue; + (void)strlcpy(mapout, cp, MAXPATHLEN); +} + +char * +domap(char *name) +{ + static char new[MAXPATHLEN]; + char *cp1 = name, *cp2 = mapin; + char *tp[9], *te[9]; + int i, toks[9], toknum = 0, match = 1; + + for (i=0; i < 9; ++i) { + toks[i] = 0; + } + while (match && *cp1 && *cp2) { + switch (*cp2) { + case '\\': + if (*++cp2 != *cp1) { + match = 0; + } + break; + case '$': + if (*(cp2+1) >= '1' && (*cp2+1) <= '9') { + if (*cp1 != *(++cp2+1)) { + toks[toknum = *cp2 - '1']++; + tp[toknum] = cp1; + while (*++cp1 && *(cp2+1) + != *cp1); + te[toknum] = cp1; + } + cp2++; + break; + } + /* FALLTHROUGH */ + default: + if (*cp2 != *cp1) { + match = 0; + } + break; + } + if (match && *cp1) { + cp1++; + } + if (match && *cp2) { + cp2++; + } + } + if (!match && *cp1) /* last token mismatch */ + { + toks[toknum] = 0; + } + cp1 = new; + *cp1 = '\0'; + cp2 = mapout; + while (*cp2) { + match = 0; + switch (*cp2) { + case '\\': + if (*(cp2 + 1)) { + *cp1++ = *++cp2; + } + break; + case '[': +LOOP: + if (*++cp2 == '$' && + isdigit((unsigned char)*(cp2+1))) { + if (*++cp2 == '0') { + char *cp3 = name; + + while (*cp3) { + *cp1++ = *cp3++; + } + match = 1; + } + else if (toks[toknum = *cp2 - '1']) { + char *cp3 = tp[toknum]; + + while (cp3 != te[toknum]) { + *cp1++ = *cp3++; + } + match = 1; + } + } + else { + while (*cp2 && *cp2 != ',' && + *cp2 != ']') { + if (*cp2 == '\\') { + cp2++; + } + else if (*cp2 == '$' && + isdigit((unsigned char)*(cp2+1))) { + if (*++cp2 == '0') { + char *cp3 = name; + + while (*cp3) { + *cp1++ = *cp3++; + } + } + else if (toks[toknum = + *cp2 - '1']) { + char *cp3=tp[toknum]; + + while (cp3 != + te[toknum]) { + *cp1++ = *cp3++; + } + } + } + else if (*cp2) { + *cp1++ = *cp2++; + } + } + if (!*cp2) { + fputs( + "nmap: unbalanced brackets.\n", + ttyout); + return (name); + } + match = 1; + cp2--; + } + if (match) { + while (*++cp2 && *cp2 != ']') { + if (*cp2 == '\\' && *(cp2 + 1)) { + cp2++; + } + } + if (!*cp2) { + fputs( + "nmap: unbalanced brackets.\n", + ttyout); + return (name); + } + break; + } + switch (*++cp2) { + case ',': + goto LOOP; + case ']': + break; + default: + cp2--; + goto LOOP; + } + break; + case '$': + if (isdigit((unsigned char)*(cp2 + 1))) { + if (*++cp2 == '0') { + char *cp3 = name; + + while (*cp3) { + *cp1++ = *cp3++; + } + } + else if (toks[toknum = *cp2 - '1']) { + char *cp3 = tp[toknum]; + + while (cp3 != te[toknum]) { + *cp1++ = *cp3++; + } + } + break; + } + /* intentional drop through */ + default: + *cp1++ = *cp2; + break; + } + cp2++; + } + *cp1 = '\0'; + if (!*new) { + return (name); + } + return (new); +} + +void +setpassive(int argc, char *argv[]) +{ + + if (argc == 1) { + passivemode = !passivemode; + activefallback = passivemode; + } else if (argc != 2) { + passiveusage: + fprintf(ttyout, "usage: %s [ on | off | auto ]\n", argv[0]); + code = -1; + return; + } else if (strcasecmp(argv[1], "on") == 0) { + passivemode = 1; + activefallback = 0; + } else if (strcasecmp(argv[1], "off") == 0) { + passivemode = 0; + activefallback = 0; + } else if (strcasecmp(argv[1], "auto") == 0) { + passivemode = 1; + activefallback = 1; + } else + goto passiveusage; + fprintf(ttyout, "Passive mode: %s; fallback to active mode: %s.\n", + onoff(passivemode), onoff(activefallback)); + code = passivemode; +} + +void +setepsv4(int argc, char *argv[]) +{ + + code = togglevar(argc, argv, &epsv4, + verbose ? "EPSV/EPRT on IPv4" : NULL); + epsv4bad = 0; +} + +void +setsunique(int argc, char *argv[]) +{ + + code = togglevar(argc, argv, &sunique, "Store unique"); +} + +void +setrunique(int argc, char *argv[]) +{ + + code = togglevar(argc, argv, &runique, "Receive unique"); +} + +int +parserate(int argc, char *argv[], int cmdlineopt) +{ + int dir, max, incr, showonly; + sigfunc oldusr1, oldusr2; + + if (argc > 4 || (argc < (cmdlineopt ? 3 : 2))) { + usage: + if (cmdlineopt) + fprintf(ttyout, + "usage: %s (all|get|put),maximum-bytes[,increment-bytes]]\n", + argv[0]); + else + fprintf(ttyout, + "usage: %s (all|get|put) [maximum-bytes [increment-bytes]]\n", + argv[0]); + return -1; + } + dir = max = incr = showonly = 0; +#define RATE_GET 1 +#define RATE_PUT 2 +#define RATE_ALL (RATE_GET | RATE_PUT) + + if (strcasecmp(argv[1], "all") == 0) + dir = RATE_ALL; + else if (strcasecmp(argv[1], "get") == 0) + dir = RATE_GET; + else if (strcasecmp(argv[1], "put") == 0) + dir = RATE_PUT; + else + goto usage; + + if (argc >= 3) { + if ((max = strsuftoi(argv[2])) < 0) + goto usage; + } else + showonly = 1; + + if (argc == 4) { + if ((incr = strsuftoi(argv[3])) <= 0) + goto usage; + } else + incr = DEFAULTINCR; + + oldusr1 = xsignal(SIGUSR1, SIG_IGN); + oldusr2 = xsignal(SIGUSR2, SIG_IGN); + if (dir & RATE_GET) { + if (!showonly) { + rate_get = max; + rate_get_incr = incr; + } + if (!cmdlineopt || verbose) + fprintf(ttyout, + "Get transfer rate throttle: %s; maximum: %d; increment %d.\n", + onoff(rate_get), rate_get, rate_get_incr); + } + if (dir & RATE_PUT) { + if (!showonly) { + rate_put = max; + rate_put_incr = incr; + } + if (!cmdlineopt || verbose) + fprintf(ttyout, + "Put transfer rate throttle: %s; maximum: %d; increment %d.\n", + onoff(rate_put), rate_put, rate_put_incr); + } + (void)xsignal(SIGUSR1, oldusr1); + (void)xsignal(SIGUSR2, oldusr2); + return 0; +} + +void +setrate(int argc, char *argv[]) +{ + + code = parserate(argc, argv, 0); +} + +/* change directory to parent directory */ +void +cdup(int argc, char *argv[]) +{ + int r; + + if (argc == 0) { + fprintf(ttyout, "usage: %s\n", argv[0]); + code = -1; + return; + } + r = command("CDUP"); + if (r == ERROR && code == 500) { + if (verbose) + fputs("CDUP command not recognized, trying XCUP.\n", + ttyout); + r = command("XCUP"); + } + if (r == COMPLETE) { + dirchange = 1; + updateremotepwd(); + } +} + +/* + * Restart transfer at specific point + */ +void +restart(int argc, char *argv[]) +{ + + if (argc == 0 || argc > 2) { + fprintf(ttyout, "usage: %s [restart-point]\n", argv[0]); + code = -1; + return; + } + if (! features[FEAT_REST_STREAM]) { + fprintf(ttyout, + "Restart is not supported by the remote server.\n"); + return; + } + if (argc == 2) { + off_t rp; + char *ep; + + rp = STRTOLL(argv[1], &ep, 10); + if (rp < 0 || *ep != '\0') + fprintf(ttyout, "restart: Invalid offset `%s'\n", + argv[1]); + else + restart_point = rp; + } + if (restart_point == 0) + fputs("No restart point defined.\n", ttyout); + else + fprintf(ttyout, + "Restarting at " LLF " for next get, put or append\n", + (LLT)restart_point); +} + +/* + * Show remote system type + */ +void +syst(int argc, char *argv[]) +{ + int oldverbose = verbose; + + if (argc == 0) { + fprintf(ttyout, "usage: %s\n", argv[0]); + code = -1; + return; + } + verbose = 1; /* If we aren't verbose, this doesn't do anything! */ + (void)command("SYST"); + verbose = oldverbose; +} + +void +macdef(int argc, char *argv[]) +{ + char *tmp; + int c; + + if (argc == 0) + goto usage; + if (macnum == 16) { + fputs("Limit of 16 macros have already been defined.\n", + ttyout); + code = -1; + return; + } + if ((argc < 2 && !another(&argc, &argv, "macro name")) || argc > 2) { + usage: + fprintf(ttyout, "usage: %s macro_name\n", argv[0]); + code = -1; + return; + } + if (interactive) + fputs( + "Enter macro line by line, terminating it with a null line.\n", + ttyout); + (void)strlcpy(macros[macnum].mac_name, argv[1], + sizeof(macros[macnum].mac_name)); + if (macnum == 0) + macros[macnum].mac_start = macbuf; + else + macros[macnum].mac_start = macros[macnum - 1].mac_end + 1; + tmp = macros[macnum].mac_start; + while (tmp != macbuf+4096) { + if ((c = getchar()) == EOF) { + fputs("macdef: end of file encountered.\n", ttyout); + code = -1; + return; + } + if ((*tmp = c) == '\n') { + if (tmp == macros[macnum].mac_start) { + macros[macnum++].mac_end = tmp; + code = 0; + return; + } + if (*(tmp-1) == '\0') { + macros[macnum++].mac_end = tmp - 1; + code = 0; + return; + } + *tmp = '\0'; + } + tmp++; + } + while (1) { + while ((c = getchar()) != '\n' && c != EOF) + /* LOOP */; + if (c == EOF || getchar() == '\n') { + fputs("Macro not defined - 4K buffer exceeded.\n", + ttyout); + code = -1; + return; + } + } +} + +/* + * Get size of file on remote machine + */ +void +sizecmd(int argc, char *argv[]) +{ + off_t size; + + if (argc == 0 || argc > 2 || + (argc == 1 && !another(&argc, &argv, "remote-file"))) { + fprintf(ttyout, "usage: %s remote-file\n", argv[0]); + code = -1; + return; + } + size = remotesize(argv[1], 1); + if (size != -1) + fprintf(ttyout, + "%s\t" LLF "\n", argv[1], (LLT)size); + code = (size > 0); +} + +/* + * Get last modification time of file on remote machine + */ +void +modtime(int argc, char *argv[]) +{ + time_t mtime; + + if (argc == 0 || argc > 2 || + (argc == 1 && !another(&argc, &argv, "remote-file"))) { + fprintf(ttyout, "usage: %s remote-file\n", argv[0]); + code = -1; + return; + } + mtime = remotemodtime(argv[1], 1); + if (mtime != -1) + fprintf(ttyout, "%s\t%s", argv[1], asctime(localtime(&mtime))); + code = (mtime > 0); +} + +/* + * Show status on remote machine + */ +void +rmtstatus(int argc, char *argv[]) +{ + + if (argc == 0) { + fprintf(ttyout, "usage: %s [remote-file]\n", argv[0]); + code = -1; + return; + } + COMMAND_1ARG(argc, argv, "STAT"); +} + +/* + * Get file if modtime is more recent than current file + */ +void +newer(int argc, char *argv[]) +{ + + if (getit(argc, argv, -1, "w")) + fprintf(ttyout, + "Local file \"%s\" is newer than remote file \"%s\".\n", + argv[2], argv[1]); +} + +/* + * Display one local file through $PAGER. + */ +void +lpage(int argc, char *argv[]) +{ + int len; + char *p, *pager, *locfile; + + if (argc == 0 || argc > 2 || + (argc == 1 && !another(&argc, &argv, "local-file"))) { + fprintf(ttyout, "usage: %s local-file\n", argv[0]); + code = -1; + return; + } + if ((locfile = globulize(argv[1])) == NULL) { + code = -1; + return; + } + p = getoptionvalue("pager"); + if (EMPTYSTRING(p)) + p = DEFAULTPAGER; + len = strlen(p) + strlen(locfile) + 2; + pager = xmalloc(len); + (void)strlcpy(pager, p, len); + (void)strlcat(pager, " ", len); + (void)strlcat(pager, locfile, len); + system(pager); + code = 0; + (void)free(pager); + (void)free(locfile); +} + +/* + * Display one remote file through $PAGER. + */ +void +page(int argc, char *argv[]) +{ + int ohash, orestart_point, overbose, len; + char *p, *pager; + + if (argc == 0 || argc > 2 || + (argc == 1 && !another(&argc, &argv, "remote-file"))) { + fprintf(ttyout, "usage: %s remote-file\n", argv[0]); + code = -1; + return; + } + p = getoptionvalue("pager"); + if (EMPTYSTRING(p)) + p = DEFAULTPAGER; + len = strlen(p) + 2; + pager = xmalloc(len); + pager[0] = '|'; + (void)strlcpy(pager + 1, p, len - 1); + + ohash = hash; + orestart_point = restart_point; + overbose = verbose; + hash = restart_point = verbose = 0; + recvrequest("RETR", pager, argv[1], "r+", 1, 0); + hash = ohash; + restart_point = orestart_point; + verbose = overbose; + (void)free(pager); +} + +/* + * Set the socket send or receive buffer size. + */ +void +setxferbuf(int argc, char *argv[]) +{ + int size, dir; + + if (argc != 2) { + usage: + fprintf(ttyout, "usage: %s size\n", argv[0]); + code = -1; + return; + } + if (strcasecmp(argv[0], "sndbuf") == 0) + dir = RATE_PUT; + else if (strcasecmp(argv[0], "rcvbuf") == 0) + dir = RATE_GET; + else if (strcasecmp(argv[0], "xferbuf") == 0) + dir = RATE_ALL; + else + goto usage; + + if ((size = strsuftoi(argv[1])) == -1) + goto usage; + + if (size == 0) { + fprintf(ttyout, "%s: size must be positive.\n", argv[0]); + goto usage; + } + + if (dir & RATE_PUT) + sndbuf_size = size; + if (dir & RATE_GET) + rcvbuf_size = size; + fprintf(ttyout, "Socket buffer sizes: send %d, receive %d.\n", + sndbuf_size, rcvbuf_size); + code = 0; +} + +/* + * Set or display options (defaults are provided by various env vars) + */ +void +setoption(int argc, char *argv[]) +{ + struct option *o; + + code = -1; + if (argc == 0 || (argc != 1 && argc != 3)) { + fprintf(ttyout, "usage: %s [option value]\n", argv[0]); + return; + } + +#define OPTIONINDENT ((int) sizeof("http_proxy")) + if (argc == 1) { + for (o = optiontab; o->name != NULL; o++) { + fprintf(ttyout, "%-*s\t%s\n", OPTIONINDENT, + o->name, o->value ? o->value : ""); + } + } else { + o = getoption(argv[1]); + if (o == NULL) { + fprintf(ttyout, "No such option `%s'.\n", argv[1]); + return; + } + FREEPTR(o->value); + o->value = xstrdup(argv[2]); + if (verbose) + fprintf(ttyout, "Setting `%s' to `%s'.\n", + o->name, o->value); + } + code = 0; +} + +/* + * Unset an option + */ +void +unsetoption(int argc, char *argv[]) +{ + struct option *o; + + code = -1; + if (argc == 0 || argc != 2) { + fprintf(ttyout, "usage: %s option\n", argv[0]); + return; + } + + o = getoption(argv[1]); + if (o == NULL) { + fprintf(ttyout, "No such option `%s'.\n", argv[1]); + return; + } + FREEPTR(o->value); + fprintf(ttyout, "Unsetting `%s'.\n", o->name); + code = 0; +} + +/* + * Display features supported by the remote host. + */ +void +feat(int argc, char *argv[]) +{ + int oldverbose = verbose; + + if (argc == 0) { + fprintf(ttyout, "usage: %s\n", argv[0]); + code = -1; + return; + } + if (! features[FEAT_FEAT]) { + fprintf(ttyout, + "FEAT is not supported by the remote server.\n"); + return; + } + verbose = 1; /* If we aren't verbose, this doesn't do anything! */ + (void)command("FEAT"); + verbose = oldverbose; +} + +void +mlst(int argc, char *argv[]) +{ + int oldverbose = verbose; + + if (argc < 1 || argc > 2) { + fprintf(ttyout, "usage: %s [remote-path]\n", argv[0]); + code = -1; + return; + } + if (! features[FEAT_MLST]) { + fprintf(ttyout, + "MLST is not supported by the remote server.\n"); + return; + } + verbose = 1; /* If we aren't verbose, this doesn't do anything! */ + COMMAND_1ARG(argc, argv, "MLST"); + verbose = oldverbose; +} + +void +opts(int argc, char *argv[]) +{ + int oldverbose = verbose; + + if (argc < 2 || argc > 3) { + fprintf(ttyout, "usage: %s command [options]\n", argv[0]); + code = -1; + return; + } + if (! features[FEAT_FEAT]) { + fprintf(ttyout, + "OPTS is not supported by the remote server.\n"); + return; + } + verbose = 1; /* If we aren't verbose, this doesn't do anything! */ + if (argc == 2) + command("OPTS %s", argv[1]); + else + command("OPTS %s %s", argv[1], argv[2]); + verbose = oldverbose; +} diff --git a/net/tnftp/files/src/ftp.c b/net/tnftp/files/src/ftp.c new file mode 100644 index 00000000000..12f58f92d56 --- /dev/null +++ b/net/tnftp/files/src/ftp.c @@ -0,0 +1,2123 @@ +/* $NetBSD: ftp.c,v 1.1.1.1 2003/07/31 07:18:24 lukem Exp $ */ + +/*- + * Copyright (c) 1996-2002 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Luke Mewburn. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * Copyright (c) 1985, 1989, 1993, 1994 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * Copyright (C) 1997 and 1998 WIDE Project. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "tnftp.h" + +#if 0 +#include <sys/cdefs.h> +#ifndef lint +#if 0 +static char sccsid[] = "@(#)ftp.c 8.6 (Berkeley) 10/27/94"; +#else +__RCSID("$NetBSD: ftp.c,v 1.1.1.1 2003/07/31 07:18:24 lukem Exp $"); +#endif +#endif /* not lint */ +#endif + +#include <arpa/telnet.h> + +#include "ftp_var.h" + +volatile int abrtflag = 0; +volatile int timeoutflag = 0; +sigjmp_buf ptabort; +int ptabflg; +int ptflag = 0; +char pasv[BUFSIZ]; /* passive port for proxy data connection */ + +static int empty(FILE *, FILE *, int); + +struct sockinet { + union sockunion { + struct sockaddr_in su_sin; +#ifdef INET6 + struct sockaddr_in6 su_sin6; +#endif + } si_su; +#if !HAVE_SOCKADDR_SA_LEN + int si_len; +#endif +}; + +#if !HAVE_SOCKADDR_SA_LEN +# define su_len si_len +#else +# define su_len si_su.su_sin.sin_len +#endif +#define su_family si_su.su_sin.sin_family +#define su_port si_su.su_sin.sin_port + +struct sockinet myctladdr, hisctladdr, data_addr; + +char * +hookup(char *host, char *port) +{ + int s = -1, len, error, portnum; + struct addrinfo hints, *res, *res0; + char hbuf[MAXHOSTNAMELEN]; + static char hostnamebuf[MAXHOSTNAMELEN]; + char *cause = "unknown"; + + memset((char *)&hisctladdr, 0, sizeof (hisctladdr)); + memset((char *)&myctladdr, 0, sizeof (myctladdr)); + memset(&hints, 0, sizeof(hints)); + portnum = parseport(port, FTP_PORT); + hints.ai_flags = AI_CANONNAME; + hints.ai_family = family; + hints.ai_socktype = SOCK_STREAM; + hints.ai_protocol = 0; + error = getaddrinfo(host, NULL, &hints, &res0); + if (error) { + warnx("%s", gai_strerror(error)); + code = -1; + return (0); + } + + if (res0->ai_canonname) + (void)strlcpy(hostnamebuf, res0->ai_canonname, + sizeof(hostnamebuf)); + else + (void)strlcpy(hostnamebuf, host, sizeof(hostnamebuf)); + hostname = hostnamebuf; + + for (res = res0; res; res = res->ai_next) { + /* + * make sure that ai_addr is NOT an IPv4 mapped address. + * IPv4 mapped address complicates too many things in FTP + * protocol handling, as FTP protocol is defined differently + * between IPv4 and IPv6. + * + * This may not be the best way to handle this situation, + * since the semantics of IPv4 mapped address is defined in + * the kernel. There are configurations where we should use + * IPv4 mapped address as native IPv6 address, not as + * "an IPv6 address that embeds IPv4 address" (namely, SIIT). + * + * More complete solution would be to have an additional + * getsockopt to grab "real" peername/sockname. "real" + * peername/sockname will be AF_INET if IPv4 mapped address + * is used to embed IPv4 address, and will be AF_INET6 if + * we use it as native. What a mess! + */ + ai_unmapped(res); +#if 0 /*old behavior*/ + if (res != res0) /* not on the first address */ +#else + if (res0->ai_next) /* if we have multiple possibilities */ +#endif + { + if (getnameinfo(res->ai_addr, res->ai_addrlen, + hbuf, sizeof(hbuf), NULL, 0, NI_NUMERICHOST)) + strlcpy(hbuf, "?", sizeof(hbuf)); + fprintf(ttyout, "Trying %s...\n", hbuf); + } + ((struct sockaddr_in *)res->ai_addr)->sin_port = htons(portnum); + s = socket(res->ai_family, SOCK_STREAM, res->ai_protocol); + if (s < 0) { + cause = "socket"; + continue; + } + while ((error = xconnect(s, res->ai_addr, res->ai_addrlen)) < 0 + && errno == EINTR) { + ; + } + if (error) { + /* this "if" clause is to prevent print warning twice */ + if (res->ai_next) { + if (getnameinfo(res->ai_addr, res->ai_addrlen, + hbuf, sizeof(hbuf), NULL, 0, + NI_NUMERICHOST)) + strlcpy(hbuf, "?", sizeof(hbuf)); + warn("connect to address %s", hbuf); + } + cause = "connect"; + close(s); + s = -1; + continue; + } + + /* finally we got one */ + break; + } + if (s < 0) { + warn("%s", cause); + code = -1; + freeaddrinfo(res0); + return 0; + } + memcpy(&hisctladdr.si_su, res->ai_addr, res->ai_addrlen); + hisctladdr.su_len = res->ai_addrlen; + freeaddrinfo(res0); + res0 = res = NULL; + + len = hisctladdr.su_len; + if (getsockname(s, (struct sockaddr *)&myctladdr.si_su, &len) < 0) { + warn("getsockname"); + code = -1; + goto bad; + } + myctladdr.su_len = len; + +#ifdef IPTOS_LOWDELAY + if (hisctladdr.su_family == AF_INET) { + int tos = IPTOS_LOWDELAY; + if (setsockopt(s, IPPROTO_IP, IP_TOS, (char *)&tos, + sizeof(int)) < 0) + warn("setsockopt TOS (ignored)"); + } +#endif + cin = fdopen(s, "r"); + cout = fdopen(s, "w"); + if (cin == NULL || cout == NULL) { + warnx("fdopen failed."); + if (cin) + (void)fclose(cin); + if (cout) + (void)fclose(cout); + code = -1; + goto bad; + } + if (verbose) + fprintf(ttyout, "Connected to %s.\n", hostname); + if (getreply(0) > 2) { /* read startup message from server */ + if (cin) + (void)fclose(cin); + if (cout) + (void)fclose(cout); + code = -1; + goto bad; + } + { + int on = 1; + + if (setsockopt(s, SOL_SOCKET, SO_OOBINLINE, (char *)&on, sizeof(on)) + < 0 && debug) { + warn("setsockopt"); + } + } + + return (hostname); + bad: + (void)close(s); + return (NULL); +} + +void +cmdabort(int notused) +{ + int oerrno = errno; + + alarmtimer(0); + if (fromatty) + write(fileno(ttyout), "\n", 1); + abrtflag++; + if (ptflag) + siglongjmp(ptabort, 1); + errno = oerrno; +} + +void +cmdtimeout(int notused) +{ + int oerrno = errno; + + alarmtimer(0); + if (fromatty) + write(fileno(ttyout), "\n", 1); + timeoutflag++; + if (ptflag) + siglongjmp(ptabort, 1); + errno = oerrno; +} + +/*VARARGS*/ +int +command(const char *fmt, ...) +{ + va_list ap; + int r; + sigfunc oldsigint; + + if (debug) { + fputs("---> ", ttyout); + va_start(ap, fmt); + if (strncmp("PASS ", fmt, 5) == 0) + fputs("PASS XXXX", ttyout); + else if (strncmp("ACCT ", fmt, 5) == 0) + fputs("ACCT XXXX", ttyout); + else + vfprintf(ttyout, fmt, ap); + va_end(ap); + putc('\n', ttyout); + } + if (cout == NULL) { + warnx("No control connection for command."); + code = -1; + return (0); + } + + abrtflag = 0; + + oldsigint = xsignal(SIGINT, cmdabort); + + va_start(ap, fmt); + vfprintf(cout, fmt, ap); + va_end(ap); + fputs("\r\n", cout); + (void)fflush(cout); + cpend = 1; + r = getreply(!strcmp(fmt, "QUIT")); + if (abrtflag && oldsigint != SIG_IGN) + (*oldsigint)(SIGINT); + (void)xsignal(SIGINT, oldsigint); + return (r); +} + +int +getreply(int expecteof) +{ + char current_line[BUFSIZ]; /* last line of previous reply */ + int c, n, line; + int dig; + int originalcode = 0, continuation = 0; + sigfunc oldsigint, oldsigalrm; + int pflag = 0; + char *cp, *pt = pasv; + + abrtflag = 0; + timeoutflag = 0; + + oldsigint = xsignal(SIGINT, cmdabort); + oldsigalrm = xsignal(SIGALRM, cmdtimeout); + + for (line = 0 ;; line++) { + dig = n = code = 0; + cp = current_line; + while (alarmtimer(60),((c = getc(cin)) != '\n')) { + if (c == IAC) { /* handle telnet commands */ + switch (c = getc(cin)) { + case WILL: + case WONT: + c = getc(cin); + fprintf(cout, "%c%c%c", IAC, DONT, c); + (void)fflush(cout); + break; + case DO: + case DONT: + c = getc(cin); + fprintf(cout, "%c%c%c", IAC, WONT, c); + (void)fflush(cout); + break; + default: + break; + } + continue; + } + dig++; + if (c == EOF) { + /* + * these will get trashed by pswitch() + * in lostpeer() + */ + int reply_timeoutflag = timeoutflag; + int reply_abrtflag = abrtflag; + + alarmtimer(0); + if (expecteof && feof(cin)) { + (void)xsignal(SIGINT, oldsigint); + (void)xsignal(SIGALRM, oldsigalrm); + code = 221; + return (0); + } + cpend = 0; + lostpeer(0); + if (verbose) { + if (reply_timeoutflag) + fputs( + "421 Service not available, remote server timed out. Connection closed\n", + ttyout); + else if (reply_abrtflag) + fputs( + "421 Service not available, user interrupt. Connection closed.\n", + ttyout); + else + fputs( + "421 Service not available, remote server has closed connection.\n", + ttyout); + (void)fflush(ttyout); + } + code = 421; + (void)xsignal(SIGINT, oldsigint); + (void)xsignal(SIGALRM, oldsigalrm); + return (4); + } + if (c != '\r' && (verbose > 0 || + ((verbose > -1 && n == '5' && dig > 4) && + (((!n && c < '5') || (n && n < '5')) + || !retry_connect)))) { + if (proxflag && + (dig == 1 || (dig == 5 && verbose == 0))) + fprintf(ttyout, "%s:", hostname); + (void)putc(c, ttyout); + } + if (dig < 4 && isdigit(c)) + code = code * 10 + (c - '0'); + if (!pflag && (code == 227 || code == 228)) + pflag = 1; + else if (!pflag && code == 229) + pflag = 100; + if (dig > 4 && pflag == 1 && isdigit(c)) + pflag = 2; + if (pflag == 2) { + if (c != '\r' && c != ')') { + if (pt < &pasv[sizeof(pasv) - 1]) + *pt++ = c; + } else { + *pt = '\0'; + pflag = 3; + } + } + if (pflag == 100 && c == '(') + pflag = 2; + if (dig == 4 && c == '-') { + if (continuation) + code = 0; + continuation++; + } + if (n == 0) + n = c; + if (cp < ¤t_line[sizeof(current_line) - 1]) + *cp++ = c; + } + if (verbose > 0 || ((verbose > -1 && n == '5') && + (n < '5' || !retry_connect))) { + (void)putc(c, ttyout); + (void)fflush (ttyout); + } + if (cp[-1] == '\r') + cp[-1] = '\0'; + *cp = '\0'; + if (line == 0) + (void)strlcpy(reply_string, current_line, + sizeof(reply_string)); + if (line > 0 && code == 0 && reply_callback != NULL) + (*reply_callback)(current_line); + if (continuation && code != originalcode) { + if (originalcode == 0) + originalcode = code; + continue; + } + if (n != '1') + cpend = 0; + alarmtimer(0); + (void)xsignal(SIGINT, oldsigint); + (void)xsignal(SIGALRM, oldsigalrm); + if (code == 421 || originalcode == 421) + lostpeer(0); + if (abrtflag && oldsigint != cmdabort && oldsigint != SIG_IGN) + (*oldsigint)(SIGINT); + if (timeoutflag && oldsigalrm != cmdtimeout && + oldsigalrm != SIG_IGN) + (*oldsigalrm)(SIGINT); + return (n - '0'); + } +} + +static int +empty(FILE *cin, FILE *din, int sec) +{ + int nr; + int nfd = 0; + +#ifdef USE_SELECT + struct timeval t; + fd_set rmask; + + FD_ZERO(&rmask); + if (cin) { + if (nfd < fileno(cin)) + nfd = fileno(cin); + FD_SET(fileno(cin), &rmask); + } + if (din) { + if (nfd < fileno(din)) + nfd = fileno(din); + FD_SET(fileno(din), &rmask); + } + + t.tv_sec = (long) sec; + t.tv_usec = 0; + if ((nr = select(nfd, &rmask, NULL, NULL, &t)) <= 0) + return nr; + + nr = 0; + if (cin) + nr |= FD_ISSET(fileno(cin), &rmask) ? 1 : 0; + if (din) + nr |= FD_ISSET(fileno(din), &rmask) ? 2 : 0; + +#else + struct pollfd pfd[2]; + + if (cin) { + pfd[nfd].fd = fileno(cin); + pfd[nfd++].events = POLLIN; + } + + if (din) { + pfd[nfd].fd = fileno(din); + pfd[nfd++].events = POLLIN; + } + + if ((nr = poll(pfd, nfd, sec * 1000)) <= 0) + return nr; + + nr = 0; + nfd = 0; + if (cin) + nr |= (pfd[nfd++].revents & POLLIN) ? 1 : 0; + if (din) + nr |= (pfd[nfd++].revents & POLLIN) ? 2 : 0; +#endif + return nr; +} + +sigjmp_buf xferabort; + +void +abortxfer(int notused) +{ + char msgbuf[100]; + int len; + + alarmtimer(0); + mflag = 0; + abrtflag = 0; + switch (direction[0]) { + case 'r': + strlcpy(msgbuf, "\nreceive", sizeof(msgbuf)); + break; + case 's': + strlcpy(msgbuf, "\nsend", sizeof(msgbuf)); + break; + default: + errx(1, "abortxfer called with unknown direction `%s'", + direction); + } + len = strlcat(msgbuf, " aborted. Waiting for remote to finish abort.\n", + sizeof(msgbuf)); + write(fileno(ttyout), msgbuf, len); + siglongjmp(xferabort, 1); +} + +void +sendrequest(const char *cmd, const char *local, const char *remote, + int printnames) +{ + struct stat st; + int c, d; + FILE *fin, *dout; + int (*closefunc)(FILE *); + sigfunc oldintr, oldintp; + volatile off_t hashbytes; + char *lmode, *bufp; + static size_t bufsize; + static char *buf; + int oprogress; + +#ifdef __GNUC__ /* to shut up gcc warnings */ + (void)&fin; + (void)&dout; + (void)&closefunc; + (void)&oldintr; + (void)&oldintp; + (void)&lmode; +#endif + + hashbytes = mark; + direction = "sent"; + dout = NULL; + bytes = 0; + filesize = -1; + oprogress = progress; + if (verbose && printnames) { + if (local && *local != '-') + fprintf(ttyout, "local: %s ", local); + if (remote) + fprintf(ttyout, "remote: %s\n", remote); + } + if (proxy) { + proxtrans(cmd, local, remote); + return; + } + if (curtype != type) + changetype(type, 0); + closefunc = NULL; + oldintr = NULL; + oldintp = NULL; + lmode = "w"; + if (sigsetjmp(xferabort, 1)) { + while (cpend) + (void)getreply(0); + code = -1; + goto cleanupsend; + } + (void)xsignal(SIGQUIT, psummary); + oldintr = xsignal(SIGINT, abortxfer); + if (strcmp(local, "-") == 0) { + fin = stdin; + progress = 0; + } else if (*local == '|') { + oldintp = xsignal(SIGPIPE, SIG_IGN); + fin = popen(local + 1, "r"); + if (fin == NULL) { + warn("%s", local + 1); + code = -1; + goto cleanupsend; + } + progress = 0; + closefunc = pclose; + } else { + fin = fopen(local, "r"); + if (fin == NULL) { + warn("local: %s", local); + code = -1; + goto cleanupsend; + } + closefunc = fclose; + if (fstat(fileno(fin), &st) < 0 || !S_ISREG(st.st_mode)) { + fprintf(ttyout, "%s: not a plain file.\n", local); + code = -1; + goto cleanupsend; + } + filesize = st.st_size; + } + if (initconn()) { + code = -1; + goto cleanupsend; + } + if (sigsetjmp(xferabort, 1)) + goto abort; + + if (restart_point && + (strcmp(cmd, "STOR") == 0 || strcmp(cmd, "APPE") == 0)) { + int rc; + + rc = -1; + switch (curtype) { + case TYPE_A: + rc = fseeko(fin, restart_point, SEEK_SET); + break; + case TYPE_I: + case TYPE_L: + rc = lseek(fileno(fin), restart_point, SEEK_SET); + break; + } + if (rc < 0) { + warn("local: %s", local); + goto cleanupsend; + } + if (command("REST " LLF, (LLT)restart_point) != CONTINUE) + goto cleanupsend; + lmode = "r+"; + } + if (remote) { + if (command("%s %s", cmd, remote) != PRELIM) + goto cleanupsend; + } else { + if (command("%s", cmd) != PRELIM) + goto cleanupsend; + } + dirchange = 1; + dout = dataconn(lmode); + if (dout == NULL) + goto abort; + + if (sndbuf_size > bufsize) { + if (buf) + (void)free(buf); + bufsize = sndbuf_size; + buf = xmalloc(bufsize); + } + + progressmeter(-1); + oldintp = xsignal(SIGPIPE, SIG_IGN); + + switch (curtype) { + + case TYPE_I: + case TYPE_L: + if (rate_put) { /* rate limited */ + while (1) { + struct timeval then, now, td; + off_t bufrem; + + (void)gettimeofday(&then, NULL); + errno = c = d = 0; + bufrem = rate_put; + while (bufrem > 0) { + if ((c = read(fileno(fin), buf, + MIN(bufsize, bufrem))) <= 0) + goto senddone; + bytes += c; + bufrem -= c; + for (bufp = buf; c > 0; + c -= d, bufp += d) + if ((d = write(fileno(dout), + bufp, c)) <= 0) + break; + if (d < 0) + goto senddone; + if (hash && + (!progress || filesize < 0) ) { + while (bytes >= hashbytes) { + (void)putc('#', ttyout); + hashbytes += mark; + } + (void)fflush(ttyout); + } + } + while (1) { + (void)gettimeofday(&now, NULL); + timersub(&now, &then, &td); + if (td.tv_sec > 0) + break; + usleep(1000000 - td.tv_usec); + } + } + } else { /* simpler/faster; no rate limit */ + while (1) { + errno = c = d = 0; + if ((c = read(fileno(fin), buf, bufsize)) <= 0) + goto senddone; + bytes += c; + for (bufp = buf; c > 0; c -= d, bufp += d) + if ((d = write(fileno(dout), bufp, c)) + <= 0) + break; + if (d < 0) + goto senddone; + if (hash && (!progress || filesize < 0) ) { + while (bytes >= hashbytes) { + (void)putc('#', ttyout); + hashbytes += mark; + } + (void)fflush(ttyout); + } + } + } + senddone: + if (hash && (!progress || filesize < 0) && bytes > 0) { + if (bytes < mark) + (void)putc('#', ttyout); + (void)putc('\n', ttyout); + } + if (c < 0) + warn("local: %s", local); + if (d < 0) { + if (errno != EPIPE) + warn("netout"); + bytes = -1; + } + break; + + case TYPE_A: + while ((c = getc(fin)) != EOF) { + if (c == '\n') { + while (hash && (!progress || filesize < 0) && + (bytes >= hashbytes)) { + (void)putc('#', ttyout); + (void)fflush(ttyout); + hashbytes += mark; + } + if (ferror(dout)) + break; + (void)putc('\r', dout); + bytes++; + } + (void)putc(c, dout); + bytes++; +#if 0 /* this violates RFC */ + if (c == '\r') { + (void)putc('\0', dout); + bytes++; + } +#endif + } + if (hash && (!progress || filesize < 0)) { + if (bytes < hashbytes) + (void)putc('#', ttyout); + (void)putc('\n', ttyout); + } + if (ferror(fin)) + warn("local: %s", local); + if (ferror(dout)) { + if (errno != EPIPE) + warn("netout"); + bytes = -1; + } + break; + } + + progressmeter(1); + if (closefunc != NULL) { + (*closefunc)(fin); + fin = NULL; + } + (void)fclose(dout); + dout = NULL; + (void)getreply(0); + if (bytes > 0) + ptransfer(0); + goto cleanupsend; + + abort: + (void)xsignal(SIGINT, oldintr); + oldintr = NULL; + if (!cpend) { + code = -1; + goto cleanupsend; + } + if (data >= 0) { + (void)close(data); + data = -1; + } + if (dout) { + (void)fclose(dout); + dout = NULL; + } + (void)getreply(0); + code = -1; + if (bytes > 0) + ptransfer(0); + + cleanupsend: + if (oldintr) + (void)xsignal(SIGINT, oldintr); + if (oldintp) + (void)xsignal(SIGPIPE, oldintp); + if (data >= 0) { + (void)close(data); + data = -1; + } + if (closefunc != NULL && fin != NULL) + (*closefunc)(fin); + if (dout) + (void)fclose(dout); + progress = oprogress; + restart_point = 0; + bytes = 0; +} + +void +recvrequest(const char *cmd, const char *local, const char *remote, + const char *lmode, int printnames, int ignorespecial) +{ + FILE *fout, *din; + int (*closefunc)(FILE *); + sigfunc oldintr, oldintp; + int c, d; + volatile int is_retr, tcrflag, bare_lfs; + static size_t bufsize; + static char *buf; + volatile off_t hashbytes; + struct stat st; + time_t mtime; + struct timeval tval[2]; + int oprogress; + int opreserve; + +#ifdef __GNUC__ /* to shut up gcc warnings */ + (void)&local; + (void)&fout; + (void)&din; + (void)&closefunc; + (void)&oldintr; + (void)&oldintp; +#endif + + fout = NULL; + din = NULL; + hashbytes = mark; + direction = "received"; + bytes = 0; + bare_lfs = 0; + filesize = -1; + oprogress = progress; + opreserve = preserve; + is_retr = (strcmp(cmd, "RETR") == 0); + if (is_retr && verbose && printnames) { + if (local && (ignorespecial || *local != '-')) + fprintf(ttyout, "local: %s ", local); + if (remote) + fprintf(ttyout, "remote: %s\n", remote); + } + if (proxy && is_retr) { + proxtrans(cmd, local, remote); + return; + } + closefunc = NULL; + oldintr = NULL; + oldintp = NULL; + tcrflag = !crflag && is_retr; + if (sigsetjmp(xferabort, 1)) { + while (cpend) + (void)getreply(0); + code = -1; + goto cleanuprecv; + } + (void)xsignal(SIGQUIT, psummary); + oldintr = xsignal(SIGINT, abortxfer); + if (ignorespecial || (strcmp(local, "-") && *local != '|')) { + if (access(local, W_OK) < 0) { + char *dir = strrchr(local, '/'); + + if (errno != ENOENT && errno != EACCES) { + warn("local: %s", local); + code = -1; + goto cleanuprecv; + } + if (dir != NULL) + *dir = 0; + d = access(dir == local ? "/" : + dir ? local : ".", W_OK); + if (dir != NULL) + *dir = '/'; + if (d < 0) { + warn("local: %s", local); + code = -1; + goto cleanuprecv; + } + if (!runique && errno == EACCES && + chmod(local, (S_IRUSR|S_IWUSR)) < 0) { + warn("local: %s", local); + code = -1; + goto cleanuprecv; + } + if (runique && errno == EACCES && + (local = gunique(local)) == NULL) { + code = -1; + goto cleanuprecv; + } + } + else if (runique && (local = gunique(local)) == NULL) { + code = -1; + goto cleanuprecv; + } + } + if (!is_retr) { + if (curtype != TYPE_A) + changetype(TYPE_A, 0); + } else { + if (curtype != type) + changetype(type, 0); + filesize = remotesize(remote, 0); + if (code == 421 || code == -1) + goto cleanuprecv; + } + if (initconn()) { + code = -1; + goto cleanuprecv; + } + if (sigsetjmp(xferabort, 1)) + goto abort; + if (is_retr && restart_point && + command("REST " LLF, (LLT) restart_point) != CONTINUE) + goto cleanuprecv; + if (! EMPTYSTRING(remote)) { + if (command("%s %s", cmd, remote) != PRELIM) + goto cleanuprecv; + } else { + if (command("%s", cmd) != PRELIM) + goto cleanuprecv; + } + din = dataconn("r"); + if (din == NULL) + goto abort; + if (!ignorespecial && strcmp(local, "-") == 0) { + fout = stdout; + progress = 0; + preserve = 0; + } else if (!ignorespecial && *local == '|') { + oldintp = xsignal(SIGPIPE, SIG_IGN); + fout = popen(local + 1, "w"); + if (fout == NULL) { + warn("%s", local+1); + goto abort; + } + progress = 0; + preserve = 0; + closefunc = pclose; + } else { + fout = fopen(local, lmode); + if (fout == NULL) { + warn("local: %s", local); + goto abort; + } + closefunc = fclose; + } + + if (fstat(fileno(fout), &st) != -1 && !S_ISREG(st.st_mode)) { + progress = 0; + preserve = 0; + } + if (rcvbuf_size > bufsize) { + if (buf) + (void)free(buf); + bufsize = rcvbuf_size; + buf = xmalloc(bufsize); + } + + progressmeter(-1); + + switch (curtype) { + + case TYPE_I: + case TYPE_L: + if (is_retr && restart_point && + lseek(fileno(fout), restart_point, SEEK_SET) < 0) { + warn("local: %s", local); + goto cleanuprecv; + } + if (rate_get) { /* rate limiting */ + while (1) { + struct timeval then, now, td; + off_t bufrem; + + (void)gettimeofday(&then, NULL); + errno = c = d = 0; + for (bufrem = rate_get; bufrem > 0; ) { + if ((c = read(fileno(din), buf, + MIN(bufsize, bufrem))) <= 0) + goto recvdone; + bytes += c; + bufrem -=c; + if ((d = write(fileno(fout), buf, c)) + != c) + goto recvdone; + if (hash && + (!progress || filesize < 0)) { + while (bytes >= hashbytes) { + (void)putc('#', ttyout); + hashbytes += mark; + } + (void)fflush(ttyout); + } + } + /* sleep until time is up */ + while (1) { + (void)gettimeofday(&now, NULL); + timersub(&now, &then, &td); + if (td.tv_sec > 0) + break; + usleep(1000000 - td.tv_usec); + } + } + } else { /* faster code (no limiting) */ + while (1) { + errno = c = d = 0; + if ((c = read(fileno(din), buf, bufsize)) <= 0) + goto recvdone; + bytes += c; + if ((d = write(fileno(fout), buf, c)) != c) + goto recvdone; + if (hash && (!progress || filesize < 0)) { + while (bytes >= hashbytes) { + (void)putc('#', ttyout); + hashbytes += mark; + } + (void)fflush(ttyout); + } + } + } + recvdone: + if (hash && (!progress || filesize < 0) && bytes > 0) { + if (bytes < mark) + (void)putc('#', ttyout); + (void)putc('\n', ttyout); + } + if (c < 0) { + if (errno != EPIPE) + warn("netin"); + bytes = -1; + } + if (d < c) { + if (d < 0) + warn("local: %s", local); + else + warnx("%s: short write", local); + } + break; + + case TYPE_A: + if (is_retr && restart_point) { + int ch; + off_t i; + + if (fseeko(fout, (off_t)0, SEEK_SET) < 0) + goto done; + for (i = 0; i++ < restart_point;) { + if ((ch = getc(fout)) == EOF) + goto done; + if (ch == '\n') + i++; + } + if (fseeko(fout, (off_t)0, SEEK_CUR) < 0) { + done: + warn("local: %s", local); + goto cleanuprecv; + } + } + while ((c = getc(din)) != EOF) { + if (c == '\n') + bare_lfs++; + while (c == '\r') { + while (hash && (!progress || filesize < 0) && + (bytes >= hashbytes)) { + (void)putc('#', ttyout); + (void)fflush(ttyout); + hashbytes += mark; + } + bytes++; + if ((c = getc(din)) != '\n' || tcrflag) { + if (ferror(fout)) + goto break2; + (void)putc('\r', fout); + if (c == '\0') { + bytes++; + goto contin2; + } + if (c == EOF) + goto contin2; + } + } + (void)putc(c, fout); + bytes++; + contin2: ; + } + break2: + if (hash && (!progress || filesize < 0)) { + if (bytes < hashbytes) + (void)putc('#', ttyout); + (void)putc('\n', ttyout); + } + if (ferror(din)) { + if (errno != EPIPE) + warn("netin"); + bytes = -1; + } + if (ferror(fout)) + warn("local: %s", local); + break; + } + + progressmeter(1); + if (closefunc != NULL) { + (*closefunc)(fout); + fout = NULL; + } + (void)fclose(din); + din = NULL; + (void)getreply(0); + if (bare_lfs) { + fprintf(ttyout, + "WARNING! %d bare linefeeds received in ASCII mode.\n", + bare_lfs); + fputs("File may not have transferred correctly.\n", ttyout); + } + if (bytes >= 0 && is_retr) { + if (bytes > 0) + ptransfer(0); + if (preserve && (closefunc == fclose)) { + mtime = remotemodtime(remote, 0); + if (mtime != -1) { + (void)gettimeofday(&tval[0], NULL); + tval[1].tv_sec = mtime; + tval[1].tv_usec = 0; + if (utimes(local, tval) == -1) { + fprintf(ttyout, + "Can't change modification time on %s to %s", + local, asctime(localtime(&mtime))); + } + } + } + } + goto cleanuprecv; + + abort: + /* + * abort using RFC 959 recommended IP,SYNC sequence + */ + if (! sigsetjmp(xferabort, 1)) { + /* this is the first call */ + (void)xsignal(SIGINT, abort_squared); + if (!cpend) { + code = -1; + goto cleanuprecv; + } + abort_remote(din); + } + code = -1; + if (bytes > 0) + ptransfer(0); + + cleanuprecv: + if (oldintr) + (void)xsignal(SIGINT, oldintr); + if (oldintp) + (void)xsignal(SIGPIPE, oldintp); + if (data >= 0) { + (void)close(data); + data = -1; + } + if (closefunc != NULL && fout != NULL) + (*closefunc)(fout); + if (din) + (void)fclose(din); + progress = oprogress; + preserve = opreserve; + bytes = 0; +} + +/* + * Need to start a listen on the data channel before we send the command, + * otherwise the server's connect may fail. + */ +int +initconn(void) +{ + char *p, *a; + int result, len, tmpno = 0; + int on = 1; + int error; + u_int addr[16], port[2]; + u_int af, hal, pal; + char *pasvcmd = NULL; + +#ifdef INET6 + if (myctladdr.su_family == AF_INET6 && debug && + (IN6_IS_ADDR_LINKLOCAL(&myctladdr.si_su.su_sin6.sin6_addr) || + IN6_IS_ADDR_SITELOCAL(&myctladdr.si_su.su_sin6.sin6_addr))) { + warnx("use of scoped address can be troublesome"); + } +#endif + reinit: + if (passivemode) { + data_addr = myctladdr; + data = socket(data_addr.su_family, SOCK_STREAM, 0); + if (data < 0) { + warn("socket"); + return (1); + } + if ((options & SO_DEBUG) && + setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on, + sizeof(on)) < 0) + warn("setsockopt (ignored)"); + result = COMPLETE + 1; + switch (data_addr.su_family) { + case AF_INET: + if (epsv4 && !epsv4bad) { + pasvcmd = "EPSV"; + result = command("EPSV"); + if (!connected) + return (1); + /* + * this code is to be friendly with broken + * BSDI ftpd + */ + if (code / 10 == 22 && code != 229) { + fputs( +"wrong server: return code must be 229\n", + ttyout); + result = COMPLETE + 1; + } + if (result != COMPLETE) { + epsv4bad = 1; + if (debug) + fputs( + "disabling epsv4 for this connection\n", + ttyout); + } + } + if (result != COMPLETE) { + pasvcmd = "PASV"; + result = command("PASV"); + if (!connected) + return (1); + } + break; +#ifdef INET6 + case AF_INET6: + pasvcmd = "EPSV"; + result = command("EPSV"); + if (!connected) + return (1); + /* this code is to be friendly with broken BSDI ftpd */ + if (code / 10 == 22 && code != 229) { + fputs( +"wrong server: return code must be 229\n", + ttyout); + result = COMPLETE + 1; + } + if (result != COMPLETE) { + pasvcmd = "LPSV"; + result = command("LPSV"); + } + if (!connected) + return (1); + break; +#endif + default: + result = COMPLETE + 1; + break; + } + if (result != COMPLETE) { + if (activefallback) { + (void)close(data); + data = -1; + passivemode = 0; +#if 0 + activefallback = 0; +#endif + goto reinit; + } + fputs("Passive mode refused.\n", ttyout); + goto bad; + } + +#define pack2(var, off) \ + (((var[(off) + 0] & 0xff) << 8) | ((var[(off) + 1] & 0xff) << 0)) +#define pack4(var, off) \ + (((var[(off) + 0] & 0xff) << 24) | ((var[(off) + 1] & 0xff) << 16) | \ + ((var[(off) + 2] & 0xff) << 8) | ((var[(off) + 3] & 0xff) << 0)) +#define UC(b) (((int)b)&0xff) + + /* + * What we've got at this point is a string of comma separated + * one-byte unsigned integer values, separated by commas. + */ + if (strcmp(pasvcmd, "PASV") == 0) { + if (data_addr.su_family != AF_INET) { + fputs( + "Passive mode AF mismatch. Shouldn't happen!\n", ttyout); + error = 1; + goto bad; + } + if (code / 10 == 22 && code != 227) { + fputs("wrong server: return code must be 227\n", + ttyout); + error = 1; + goto bad; + } + error = sscanf(pasv, "%u,%u,%u,%u,%u,%u", + &addr[0], &addr[1], &addr[2], &addr[3], + &port[0], &port[1]); + if (error != 6) { + fputs( +"Passive mode address scan failure. Shouldn't happen!\n", ttyout); + error = 1; + goto bad; + } + error = 0; + memset(&data_addr, 0, sizeof(data_addr)); + data_addr.su_family = AF_INET; + data_addr.su_len = sizeof(struct sockaddr_in); + data_addr.si_su.su_sin.sin_addr.s_addr = + htonl(pack4(addr, 0)); + data_addr.su_port = htons(pack2(port, 0)); + } else if (strcmp(pasvcmd, "LPSV") == 0) { + if (code / 10 == 22 && code != 228) { + fputs("wrong server: return code must be 228\n", + ttyout); + error = 1; + goto bad; + } + switch (data_addr.su_family) { + case AF_INET: + error = sscanf(pasv, +"%u,%u,%u,%u,%u,%u,%u,%u,%u", + &af, &hal, + &addr[0], &addr[1], &addr[2], &addr[3], + &pal, &port[0], &port[1]); + if (error != 9) { + fputs( +"Passive mode address scan failure. Shouldn't happen!\n", ttyout); + error = 1; + goto bad; + } + if (af != 4 || hal != 4 || pal != 2) { + fputs( +"Passive mode AF mismatch. Shouldn't happen!\n", ttyout); + error = 1; + goto bad; + } + + error = 0; + memset(&data_addr, 0, sizeof(data_addr)); + data_addr.su_family = AF_INET; + data_addr.su_len = sizeof(struct sockaddr_in); + data_addr.si_su.su_sin.sin_addr.s_addr = + htonl(pack4(addr, 0)); + data_addr.su_port = htons(pack2(port, 0)); + break; +#ifdef INET6 + case AF_INET6: + error = sscanf(pasv, +"%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u,%u", + &af, &hal, + &addr[0], &addr[1], &addr[2], &addr[3], + &addr[4], &addr[5], &addr[6], &addr[7], + &addr[8], &addr[9], &addr[10], + &addr[11], &addr[12], &addr[13], + &addr[14], &addr[15], + &pal, &port[0], &port[1]); + if (error != 21) { + fputs( +"Passive mode address scan failure. Shouldn't happen!\n", ttyout); + error = 1; + goto bad; + } + if (af != 6 || hal != 16 || pal != 2) { + fputs( +"Passive mode AF mismatch. Shouldn't happen!\n", ttyout); + error = 1; + goto bad; + } + + error = 0; + memset(&data_addr, 0, sizeof(data_addr)); + data_addr.su_family = AF_INET6; + data_addr.su_len = sizeof(struct sockaddr_in6); + { + int i; + for (i = 0; i < sizeof(struct in6_addr); i++) { + data_addr.si_su.su_sin6.sin6_addr.s6_addr[i] = + UC(addr[i]); + } + } + data_addr.su_port = htons(pack2(port, 0)); + break; +#endif + default: + error = 1; + } + } else if (strcmp(pasvcmd, "EPSV") == 0) { + char delim[4]; + + port[0] = 0; + if (code / 10 == 22 && code != 229) { + fputs("wrong server: return code must be 229\n", + ttyout); + error = 1; + goto bad; + } + if (sscanf(pasv, "%c%c%c%d%c", &delim[0], + &delim[1], &delim[2], &port[1], + &delim[3]) != 5) { + fputs("parse error!\n", ttyout); + error = 1; + goto bad; + } + if (delim[0] != delim[1] || delim[0] != delim[2] + || delim[0] != delim[3]) { + fputs("parse error!\n", ttyout); + error = 1; + goto bad; + } + data_addr = hisctladdr; + data_addr.su_port = htons(port[1]); + } else + goto bad; + + while (xconnect(data, (struct sockaddr *)&data_addr.si_su, + data_addr.su_len) < 0) { + if (errno == EINTR) + continue; + if (activefallback) { + (void)close(data); + data = -1; + passivemode = 0; +#if 0 + activefallback = 0; +#endif + goto reinit; + } + warn("connect"); + goto bad; + } +#ifdef IPTOS_THROUGHPUT + if (data_addr.su_family == AF_INET) { + on = IPTOS_THROUGHPUT; + if (setsockopt(data, IPPROTO_IP, IP_TOS, (char *)&on, + sizeof(int)) < 0) + warn("setsockopt TOS (ignored)"); + } +#endif + return (0); + } + + noport: + data_addr = myctladdr; + if (sendport) + data_addr.su_port = 0; /* let system pick one */ + if (data != -1) + (void)close(data); + data = socket(data_addr.su_family, SOCK_STREAM, 0); + if (data < 0) { + warn("socket"); + if (tmpno) + sendport = 1; + return (1); + } + if (!sendport) + if (setsockopt(data, SOL_SOCKET, SO_REUSEADDR, (char *)&on, + sizeof(on)) < 0) { + warn("setsockopt (reuse address)"); + goto bad; + } + if (bind(data, (struct sockaddr *)&data_addr.si_su, + data_addr.su_len) < 0) { + warn("bind"); + goto bad; + } + if (options & SO_DEBUG && + setsockopt(data, SOL_SOCKET, SO_DEBUG, (char *)&on, + sizeof(on)) < 0) + warn("setsockopt (ignored)"); + len = sizeof(data_addr.si_su); + memset((char *)&data_addr, 0, sizeof (data_addr)); + if (getsockname(data, (struct sockaddr *)&data_addr.si_su, &len) < 0) { + warn("getsockname"); + goto bad; + } + data_addr.su_len = len; + if (xlisten(data, 1) < 0) + warn("listen"); + + if (sendport) { + char hname[NI_MAXHOST], sname[NI_MAXSERV]; + int af; + struct sockinet tmp; + + switch (data_addr.su_family) { + case AF_INET: + if (!epsv4 || epsv4bad) { + result = COMPLETE + 1; + break; + } + /* FALLTHROUGH */ +#ifdef INET6 + case AF_INET6: +#endif + af = (data_addr.su_family == AF_INET) ? 1 : 2; + tmp = data_addr; +#ifdef INET6 + if (tmp.su_family == AF_INET6) + tmp.si_su.su_sin6.sin6_scope_id = 0; +#endif + if (getnameinfo((struct sockaddr *)&tmp.si_su, + tmp.su_len, hname, sizeof(hname), sname, + sizeof(sname), NI_NUMERICHOST | NI_NUMERICSERV)) { + result = ERROR; + } else { + result = command("EPRT |%d|%s|%s|", af, hname, + sname); + if (!connected) + return (1); + if (result != COMPLETE) { + epsv4bad = 1; + if (debug) + fputs( + "disabling epsv4 for this connection\n", + ttyout); + } + } + break; + default: + result = COMPLETE + 1; + break; + } + if (result == COMPLETE) + goto skip_port; + + switch (data_addr.su_family) { + case AF_INET: + a = (char *)&data_addr.si_su.su_sin.sin_addr; + p = (char *)&data_addr.su_port; + result = command("PORT %d,%d,%d,%d,%d,%d", + UC(a[0]), UC(a[1]), UC(a[2]), UC(a[3]), + UC(p[0]), UC(p[1])); + break; +#ifdef INET6 + case AF_INET6: + a = (char *)&data_addr.si_su.su_sin6.sin6_addr; + p = (char *)&data_addr.su_port; + result = command( + "LPRT %d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d", + 6, 16, + UC(a[0]),UC(a[1]),UC(a[2]),UC(a[3]), + UC(a[4]),UC(a[5]),UC(a[6]),UC(a[7]), + UC(a[8]),UC(a[9]),UC(a[10]),UC(a[11]), + UC(a[12]),UC(a[13]),UC(a[14]),UC(a[15]), + 2, UC(p[0]), UC(p[1])); + break; +#endif + default: + result = COMPLETE + 1; /* xxx */ + } + if (!connected) + return (1); + skip_port: + + if (result == ERROR && sendport == -1) { + sendport = 0; + tmpno = 1; + goto noport; + } + return (result != COMPLETE); + } + if (tmpno) + sendport = 1; +#ifdef IPTOS_THROUGHPUT + if (data_addr.su_family == AF_INET) { + on = IPTOS_THROUGHPUT; + if (setsockopt(data, IPPROTO_IP, IP_TOS, (char *)&on, + sizeof(int)) < 0) + warn("setsockopt TOS (ignored)"); + } +#endif + return (0); + bad: + (void)close(data), data = -1; + if (tmpno) + sendport = 1; + return (1); +} + +FILE * +dataconn(const char *lmode) +{ + struct sockinet from; + int s, fromlen = myctladdr.su_len; + + if (passivemode) + return (fdopen(data, lmode)); + + s = accept(data, (struct sockaddr *) &from.si_su, &fromlen); + if (s < 0) { + warn("accept"); + (void)close(data), data = -1; + return (NULL); + } + (void)close(data); + data = s; +#ifdef IPTOS_THROUGHPUT + if (from.su_family == AF_INET) { + int tos = IPTOS_THROUGHPUT; + if (setsockopt(s, IPPROTO_IP, IP_TOS, (char *)&tos, + sizeof(int)) < 0) { + warn("setsockopt TOS (ignored)"); + } + } +#endif + return (fdopen(data, lmode)); +} + +void +psabort(int notused) +{ + int oerrno = errno; + + alarmtimer(0); + abrtflag++; + errno = oerrno; +} + +void +pswitch(int flag) +{ + sigfunc oldintr; + static struct comvars { + int connect; + char name[MAXHOSTNAMELEN]; + struct sockinet mctl; + struct sockinet hctl; + FILE *in; + FILE *out; + int tpe; + int curtpe; + int cpnd; + int sunqe; + int runqe; + int mcse; + int ntflg; + char nti[17]; + char nto[17]; + int mapflg; + char mi[MAXPATHLEN]; + char mo[MAXPATHLEN]; + } proxstruct, tmpstruct; + struct comvars *ip, *op; + + abrtflag = 0; + oldintr = xsignal(SIGINT, psabort); + if (flag) { + if (proxy) + return; + ip = &tmpstruct; + op = &proxstruct; + proxy++; + } else { + if (!proxy) + return; + ip = &proxstruct; + op = &tmpstruct; + proxy = 0; + } + ip->connect = connected; + connected = op->connect; + if (hostname) + (void)strlcpy(ip->name, hostname, sizeof(ip->name)); + else + ip->name[0] = '\0'; + hostname = op->name; + ip->hctl = hisctladdr; + hisctladdr = op->hctl; + ip->mctl = myctladdr; + myctladdr = op->mctl; + ip->in = cin; + cin = op->in; + ip->out = cout; + cout = op->out; + ip->tpe = type; + type = op->tpe; + ip->curtpe = curtype; + curtype = op->curtpe; + ip->cpnd = cpend; + cpend = op->cpnd; + ip->sunqe = sunique; + sunique = op->sunqe; + ip->runqe = runique; + runique = op->runqe; + ip->mcse = mcase; + mcase = op->mcse; + ip->ntflg = ntflag; + ntflag = op->ntflg; + (void)strlcpy(ip->nti, ntin, sizeof(ip->nti)); + (void)strlcpy(ntin, op->nti, sizeof(ntin)); + (void)strlcpy(ip->nto, ntout, sizeof(ip->nto)); + (void)strlcpy(ntout, op->nto, sizeof(ntout)); + ip->mapflg = mapflag; + mapflag = op->mapflg; + (void)strlcpy(ip->mi, mapin, sizeof(ip->mi)); + (void)strlcpy(mapin, op->mi, sizeof(mapin)); + (void)strlcpy(ip->mo, mapout, sizeof(ip->mo)); + (void)strlcpy(mapout, op->mo, sizeof(mapout)); + (void)xsignal(SIGINT, oldintr); + if (abrtflag) { + abrtflag = 0; + (*oldintr)(SIGINT); + } +} + +void +abortpt(int notused) +{ + + alarmtimer(0); + if (fromatty) + write(fileno(ttyout), "\n", 1); + ptabflg++; + mflag = 0; + abrtflag = 0; + siglongjmp(ptabort, 1); +} + +void +proxtrans(const char *cmd, const char *local, const char *remote) +{ + sigfunc oldintr; + int prox_type, nfnd; + volatile int secndflag; + char *cmd2; + +#ifdef __GNUC__ /* to shut up gcc warnings */ + (void)&oldintr; + (void)&cmd2; +#endif + + oldintr = NULL; + secndflag = 0; + if (strcmp(cmd, "RETR")) + cmd2 = "RETR"; + else + cmd2 = runique ? "STOU" : "STOR"; + if ((prox_type = type) == 0) { + if (unix_server && unix_proxy) + prox_type = TYPE_I; + else + prox_type = TYPE_A; + } + if (curtype != prox_type) + changetype(prox_type, 1); + if (command("PASV") != COMPLETE) { + fputs("proxy server does not support third party transfers.\n", + ttyout); + return; + } + pswitch(0); + if (!connected) { + fputs("No primary connection.\n", ttyout); + pswitch(1); + code = -1; + return; + } + if (curtype != prox_type) + changetype(prox_type, 1); + if (command("PORT %s", pasv) != COMPLETE) { + pswitch(1); + return; + } + if (sigsetjmp(ptabort, 1)) + goto abort; + oldintr = xsignal(SIGINT, abortpt); + if ((restart_point && + (command("REST " LLF, (LLT) restart_point) != CONTINUE)) + || (command("%s %s", cmd, remote) != PRELIM)) { + (void)xsignal(SIGINT, oldintr); + pswitch(1); + return; + } + sleep(2); + pswitch(1); + secndflag++; + if ((restart_point && + (command("REST " LLF, (LLT) restart_point) != CONTINUE)) + || (command("%s %s", cmd2, local) != PRELIM)) + goto abort; + ptflag++; + (void)getreply(0); + pswitch(0); + (void)getreply(0); + (void)xsignal(SIGINT, oldintr); + pswitch(1); + ptflag = 0; + fprintf(ttyout, "local: %s remote: %s\n", local, remote); + return; + abort: + if (sigsetjmp(xferabort, 1)) { + (void)xsignal(SIGINT, oldintr); + return; + } + (void)xsignal(SIGINT, abort_squared); + ptflag = 0; + if (strcmp(cmd, "RETR") && !proxy) + pswitch(1); + else if (!strcmp(cmd, "RETR") && proxy) + pswitch(0); + if (!cpend && !secndflag) { /* only here if cmd = "STOR" (proxy=1) */ + if (command("%s %s", cmd2, local) != PRELIM) { + pswitch(0); + if (cpend) + abort_remote(NULL); + } + pswitch(1); + if (ptabflg) + code = -1; + (void)xsignal(SIGINT, oldintr); + return; + } + if (cpend) + abort_remote(NULL); + pswitch(!proxy); + if (!cpend && !secndflag) { /* only if cmd = "RETR" (proxy=1) */ + if (command("%s %s", cmd2, local) != PRELIM) { + pswitch(0); + if (cpend) + abort_remote(NULL); + pswitch(1); + if (ptabflg) + code = -1; + (void)xsignal(SIGINT, oldintr); + return; + } + } + if (cpend) + abort_remote(NULL); + pswitch(!proxy); + if (cpend) { + if ((nfnd = empty(cin, NULL, 10)) <= 0) { + if (nfnd < 0) + warn("abort"); + if (ptabflg) + code = -1; + lostpeer(0); + } + (void)getreply(0); + (void)getreply(0); + } + if (proxy) + pswitch(0); + pswitch(1); + if (ptabflg) + code = -1; + (void)xsignal(SIGINT, oldintr); +} + +void +reset(int argc, char *argv[]) +{ + int nfnd = 1; + + if (argc == 0 && argv != NULL) { + fprintf(ttyout, "usage: %s\n", argv[0]); + code = -1; + return; + } + while (nfnd > 0) { + if ((nfnd = empty(cin, NULL, 0)) < 0) { + warn("reset"); + code = -1; + lostpeer(0); + } else if (nfnd) + (void)getreply(0); + } +} + +char * +gunique(const char *local) +{ + static char new[MAXPATHLEN]; + char *cp = strrchr(local, '/'); + int d, count=0, len; + char ext = '1'; + + if (cp) + *cp = '\0'; + d = access(cp == local ? "/" : cp ? local : ".", W_OK); + if (cp) + *cp = '/'; + if (d < 0) { + warn("local: %s", local); + return (NULL); + } + len = strlcpy(new, local, sizeof(new)); + cp = &new[len]; + *cp++ = '.'; + while (!d) { + if (++count == 100) { + fputs("runique: can't find unique file name.\n", + ttyout); + return (NULL); + } + *cp++ = ext; + *cp = '\0'; + if (ext == '9') + ext = '0'; + else + ext++; + if ((d = access(new, F_OK)) < 0) + break; + if (ext != '0') + cp--; + else if (*(cp - 2) == '.') + *(cp - 1) = '1'; + else { + *(cp - 2) = *(cp - 2) + 1; + cp--; + } + } + return (new); +} + +/* + * abort_squared -- + * aborts abort_remote(). lostpeer() is called because if the user is + * too impatient to wait or there's another problem then ftp really + * needs to get back to a known state. + */ +void +abort_squared(int dummy) +{ + char msgbuf[100]; + int len; + + alarmtimer(0); + len = strlcpy(msgbuf, "\nremote abort aborted; closing connection.\n", + sizeof(msgbuf)); + write(fileno(ttyout), msgbuf, len); + lostpeer(0); + siglongjmp(xferabort, 1); +} + +void +abort_remote(FILE *din) +{ + char buf[BUFSIZ]; + int nfnd; + + if (cout == NULL) { + warnx("Lost control connection for abort."); + if (ptabflg) + code = -1; + lostpeer(0); + return; + } + /* + * send IAC in urgent mode instead of DM because 4.3BSD places oob mark + * after urgent byte rather than before as is protocol now + */ + buf[0] = IAC; + buf[1] = IP; + buf[2] = IAC; + if (send(fileno(cout), buf, 3, MSG_OOB) != 3) + warn("abort"); + fprintf(cout, "%cABOR\r\n", DM); + (void)fflush(cout); + if ((nfnd = empty(cin, din, 10)) <= 0) { + if (nfnd < 0) + warn("abort"); + if (ptabflg) + code = -1; + lostpeer(0); + } + if (din && (nfnd & 2)) { + while (read(fileno(din), buf, BUFSIZ) > 0) + continue; + } + if (getreply(0) == ERROR && code == 552) { + /* 552 needed for nic style abort */ + (void)getreply(0); + } + (void)getreply(0); +} + +void +ai_unmapped(struct addrinfo *ai) +{ +#ifdef INET6 + struct sockaddr_in6 *sin6; + struct sockaddr_in sin; + int len; + + if (ai->ai_family != AF_INET6) + return; + if (ai->ai_addrlen != sizeof(struct sockaddr_in6) || + sizeof(sin) > ai->ai_addrlen) + return; + sin6 = (struct sockaddr_in6 *)ai->ai_addr; + if (!IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) + return; + + memset(&sin, 0, sizeof(sin)); + sin.sin_family = AF_INET; + len = sizeof(struct sockaddr_in); + memcpy(&sin.sin_addr, &sin6->sin6_addr.s6_addr[12], + sizeof(sin.sin_addr)); + sin.sin_port = sin6->sin6_port; + + ai->ai_family = AF_INET; +#if HAVE_SOCKADDR_SA_LEN + sin.sin_len = len; +#endif + memcpy(ai->ai_addr, &sin, len); + ai->ai_addrlen = len; +#endif +} diff --git a/net/tnftp/files/src/util.c b/net/tnftp/files/src/util.c new file mode 100644 index 00000000000..9b0a9aa11dd --- /dev/null +++ b/net/tnftp/files/src/util.c @@ -0,0 +1,1266 @@ +/* $NetBSD: util.c,v 1.1.1.1 2003/07/31 07:18:24 lukem Exp $ */ + +/*- + * Copyright (c) 1997-2003 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Luke Mewburn. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, + * NASA Ames Research Center. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * Copyright (c) 1985, 1989, 1993, 1994 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if 0 +#include <sys/cdefs.h> +#ifndef lint +__RCSID("$NetBSD: util.c,v 1.1.1.1 2003/07/31 07:18:24 lukem Exp $"); +#endif /* not lint */ +#endif + +/* + * FTP User Program -- Misc support routines + */ + +#include "tnftp.h" + +#include "ftp_var.h" + +/* + * Connect to peer server and auto-login, if possible. + */ +void +setpeer(int argc, char *argv[]) +{ + char *host; + char *port; + + if (argc == 0) + goto usage; + if (connected) { + fprintf(ttyout, "Already connected to %s, use close first.\n", + hostname); + code = -1; + return; + } + if (argc < 2) + (void)another(&argc, &argv, "to"); + if (argc < 2 || argc > 3) { + usage: + fprintf(ttyout, "usage: %s host-name [port]\n", argv[0]); + code = -1; + return; + } + if (gatemode) + port = gateport; + else + port = ftpport; + if (argc > 2) + port = argv[2]; + + if (gatemode) { + if (gateserver == NULL || *gateserver == '\0') + errx(1, "gateserver not defined (shouldn't happen)"); + host = hookup(gateserver, port); + } else + host = hookup(argv[1], port); + + if (host) { + if (gatemode && verbose) { + fprintf(ttyout, + "Connecting via pass-through server %s\n", + gateserver); + } + + connected = 1; + /* + * Set up defaults for FTP. + */ + (void)strlcpy(typename, "ascii", sizeof(typename)); + type = TYPE_A; + curtype = TYPE_A; + (void)strlcpy(formname, "non-print", sizeof(formname)); + form = FORM_N; + (void)strlcpy(modename, "stream", sizeof(modename)); + mode = MODE_S; + (void)strlcpy(structname, "file", sizeof(structname)); + stru = STRU_F; + (void)strlcpy(bytename, "8", sizeof(bytename)); + bytesize = 8; + if (autologin) + (void)ftp_login(argv[1], NULL, NULL); + } +} + +static void +parse_feat(const char *line) +{ + + /* + * work-around broken ProFTPd servers that can't + * even obey RFC 2389. + */ + while (*line && isspace((int)*line)) + line++; + + if (strcasecmp(line, "MDTM") == 0) + features[FEAT_MDTM] = 1; + else if (strncasecmp(line, "MLST", sizeof("MLST") - 1) == 0) { + features[FEAT_MLST] = 1; + } else if (strcasecmp(line, "REST STREAM") == 0) + features[FEAT_REST_STREAM] = 1; + else if (strcasecmp(line, "SIZE") == 0) + features[FEAT_SIZE] = 1; + else if (strcasecmp(line, "TVFS") == 0) + features[FEAT_TVFS] = 1; +} + +/* + * Determine the remote system type (SYST) and features (FEAT). + * Call after a successful login (i.e, connected = -1) + */ +void +getremoteinfo(void) +{ + int overbose, i; + + overbose = verbose; + if (debug == 0) + verbose = -1; + + /* determine remote system type */ + if (command("SYST") == COMPLETE) { + if (overbose) { + char *cp, c; + + c = 0; + cp = strchr(reply_string + 4, ' '); + if (cp == NULL) + cp = strchr(reply_string + 4, '\r'); + if (cp) { + if (cp[-1] == '.') + cp--; + c = *cp; + *cp = '\0'; + } + + fprintf(ttyout, "Remote system type is %s.\n", + reply_string + 4); + if (cp) + *cp = c; + } + if (!strncmp(reply_string, "215 UNIX Type: L8", 17)) { + if (proxy) + unix_proxy = 1; + else + unix_server = 1; + /* + * Set type to 0 (not specified by user), + * meaning binary by default, but don't bother + * telling server. We can use binary + * for text files unless changed by the user. + */ + type = 0; + (void)strlcpy(typename, "binary", sizeof(typename)); + if (overbose) + fprintf(ttyout, + "Using %s mode to transfer files.\n", + typename); + } else { + if (proxy) + unix_proxy = 0; + else + unix_server = 0; + if (overbose && + !strncmp(reply_string, "215 TOPS20", 10)) + fputs( +"Remember to set tenex mode when transferring binary files from this machine.\n", + ttyout); + } + } + + /* determine features (if any) */ + for (i = 0; i < FEAT_max; i++) + features[i] = -1; + reply_callback = parse_feat; + if (command("FEAT") == COMPLETE) { + for (i = 0; i < FEAT_max; i++) { + if (features[i] == -1) + features[i] = 0; + } + features[FEAT_FEAT] = 1; + } else + features[FEAT_FEAT] = 0; + if (debug) { +#define DEBUG_FEAT(x) fprintf(ttyout, "features[" #x "] = %d\n", features[(x)]) + DEBUG_FEAT(FEAT_FEAT); + DEBUG_FEAT(FEAT_MDTM); + DEBUG_FEAT(FEAT_MLST); + DEBUG_FEAT(FEAT_REST_STREAM); + DEBUG_FEAT(FEAT_SIZE); + DEBUG_FEAT(FEAT_TVFS); +#undef DEBUG_FEAT + } + reply_callback = NULL; + + verbose = overbose; +} + +/* + * Reset the various variables that indicate connection state back to + * disconnected settings. + * The caller is responsible for issuing any commands to the remote server + * to perform a clean shutdown before this is invoked. + */ +void +cleanuppeer(void) +{ + + if (cout) + (void)fclose(cout); + cout = NULL; + connected = 0; + unix_server = 0; + unix_proxy = 0; + /* + * determine if anonftp was specifically set with -a + * (1), or implicitly set by auto_fetch() (2). in the + * latter case, disable after the current xfer + */ + if (anonftp == 2) + anonftp = 0; + data = -1; + epsv4bad = 0; + if (username) + free(username); + username = NULL; + if (!proxy) + macnum = 0; +} + +/* + * Top-level signal handler for interrupted commands. + */ +void +intr(int dummy) +{ + + alarmtimer(0); + if (fromatty) + write(fileno(ttyout), "\n", 1); + siglongjmp(toplevel, 1); +} + +/* + * Signal handler for lost connections; cleanup various elements of + * the connection state, and call cleanuppeer() to finish it off. + */ +void +lostpeer(int dummy) +{ + int oerrno = errno; + + alarmtimer(0); + if (connected) { + if (cout != NULL) { + (void)shutdown(fileno(cout), 1+1); + (void)fclose(cout); + cout = NULL; + } + if (data >= 0) { + (void)shutdown(data, 1+1); + (void)close(data); + data = -1; + } + connected = 0; + } + pswitch(1); + if (connected) { + if (cout != NULL) { + (void)shutdown(fileno(cout), 1+1); + (void)fclose(cout); + cout = NULL; + } + connected = 0; + } + proxflag = 0; + pswitch(0); + cleanuppeer(); + errno = oerrno; +} + + +/* + * Login to remote host, using given username & password if supplied. + * Return non-zero if successful. + */ +int +ftp_login(const char *host, const char *user, const char *pass) +{ + char tmp[80]; + const char *acct; + int n, aflag, rval, freeuser, freepass, freeacct; + + acct = NULL; + aflag = rval = freeuser = freepass = freeacct = 0; + + if (debug) + fprintf(ttyout, "ftp_login: user `%s' pass `%s' host `%s'\n", + user ? user : "<null>", pass ? pass : "<null>", + host ? host : "<null>"); + + + /* + * Set up arguments for an anonymous FTP session, if necessary. + */ + if (anonftp) { + user = "anonymous"; /* as per RFC 1635 */ + pass = getoptionvalue("anonpass"); + } + + if (user == NULL) + freeuser = 1; + if (pass == NULL) + freepass = 1; + freeacct = 1; + if (ruserpass(host, &user, &pass, &acct) < 0) { + code = -1; + goto cleanup_ftp_login; + } + + while (user == NULL) { + if (localname) + fprintf(ttyout, "Name (%s:%s): ", host, localname); + else + fprintf(ttyout, "Name (%s): ", host); + *tmp = '\0'; + if (fgets(tmp, sizeof(tmp) - 1, stdin) == NULL) { + fprintf(ttyout, "\nEOF received; login aborted.\n"); + clearerr(stdin); + code = -1; + goto cleanup_ftp_login; + } + tmp[strlen(tmp) - 1] = '\0'; + freeuser = 0; + if (*tmp == '\0') + user = localname; + else + user = tmp; + } + + if (gatemode) { + char *nuser; + int len; + + len = strlen(user) + 1 + strlen(host) + 1; + nuser = xmalloc(len); + (void)strlcpy(nuser, user, len); + (void)strlcat(nuser, "@", len); + (void)strlcat(nuser, host, len); + freeuser = 1; + user = nuser; + } + + n = command("USER %s", user); + if (n == CONTINUE) { + if (pass == NULL) { + freepass = 0; + pass = getpass("Password:"); + } + n = command("PASS %s", pass); + } + if (n == CONTINUE) { + aflag++; + if (acct == NULL) { + freeacct = 0; + acct = getpass("Account:"); + } + if (acct[0] == '\0') { + warnx("Login failed."); + goto cleanup_ftp_login; + } + n = command("ACCT %s", acct); + } + if ((n != COMPLETE) || + (!aflag && acct != NULL && command("ACCT %s", acct) != COMPLETE)) { + warnx("Login failed."); + goto cleanup_ftp_login; + } + rval = 1; + username = xstrdup(user); + if (proxy) + goto cleanup_ftp_login; + + connected = -1; + getremoteinfo(); + for (n = 0; n < macnum; ++n) { + if (!strcmp("init", macros[n].mac_name)) { + (void)strlcpy(line, "$init", sizeof(line)); + makeargv(); + domacro(margc, margv); + break; + } + } + updateremotepwd(); + + cleanup_ftp_login: + if (user != NULL && freeuser) + free((char *)user); + if (pass != NULL && freepass) + free((char *)pass); + if (acct != NULL && freeacct) + free((char *)acct); + return (rval); +} + +/* + * `another' gets another argument, and stores the new argc and argv. + * It reverts to the top level (via intr()) on EOF/error. + * + * Returns false if no new arguments have been added. + */ +int +another(int *pargc, char ***pargv, const char *prompt) +{ + int len = strlen(line), ret; + + if (len >= sizeof(line) - 3) { + fputs("sorry, arguments too long.\n", ttyout); + intr(0); + } + fprintf(ttyout, "(%s) ", prompt); + line[len++] = ' '; + if (fgets(&line[len], sizeof(line) - len, stdin) == NULL) { + clearerr(stdin); + intr(0); + } + len += strlen(&line[len]); + if (len > 0 && line[len - 1] == '\n') + line[len - 1] = '\0'; + makeargv(); + ret = margc > *pargc; + *pargc = margc; + *pargv = margv; + return (ret); +} + +/* + * glob files given in argv[] from the remote server. + * if errbuf isn't NULL, store error messages there instead + * of writing to the screen. + */ +char * +remglob(char *argv[], int doswitch, char **errbuf) +{ + char temp[MAXPATHLEN]; + static char buf[MAXPATHLEN]; + static FILE *ftemp = NULL; + static char **args; + int oldverbose, oldhash, oldprogress, fd, len; + char *cp, *mode; + + if (!mflag || !connected) { + if (!doglob) + args = NULL; + else { + if (ftemp) { + (void)fclose(ftemp); + ftemp = NULL; + } + } + return (NULL); + } + if (!doglob) { + if (args == NULL) + args = argv; + if ((cp = *++args) == NULL) + args = NULL; + return (cp); + } + if (ftemp == NULL) { + len = strlcpy(temp, tmpdir, sizeof(temp)); + if (temp[len - 1] != '/') + (void)strlcat(temp, "/", sizeof(temp)); + (void)strlcat(temp, TMPFILE, sizeof(temp)); + if ((fd = mkstemp(temp)) < 0) { + warn("unable to create temporary file %s", temp); + return (NULL); + } + close(fd); + oldverbose = verbose; + verbose = (errbuf != NULL) ? -1 : 0; + oldhash = hash; + oldprogress = progress; + hash = 0; + progress = 0; + if (doswitch) + pswitch(!proxy); + for (mode = "w"; *++argv != NULL; mode = "a") + recvrequest("NLST", temp, *argv, mode, 0, 0); + if ((code / 100) != COMPLETE) { + if (errbuf != NULL) + *errbuf = reply_string; + } + if (doswitch) + pswitch(!proxy); + verbose = oldverbose; + hash = oldhash; + progress = oldprogress; + ftemp = fopen(temp, "r"); + (void)unlink(temp); + if (ftemp == NULL) { + if (errbuf == NULL) + fputs( + "can't find list of remote files, oops.\n", + ttyout); + else + *errbuf = + "can't find list of remote files, oops."; + return (NULL); + } + } + if (fgets(buf, sizeof(buf), ftemp) == NULL) { + (void)fclose(ftemp); + ftemp = NULL; + return (NULL); + } + if ((cp = strchr(buf, '\n')) != NULL) + *cp = '\0'; + return (buf); +} + +/* + * Glob a local file name specification with the expectation of a single + * return value. Can't control multiple values being expanded from the + * expression, we return only the first. + * Returns NULL on error, or a pointer to a buffer containing the filename + * that's the caller's responsiblity to free(3) when finished with. + */ +char * +globulize(const char *pattern) +{ + glob_t gl; + int flags; + char *p; + + if (!doglob) + return (xstrdup(pattern)); + + flags = GLOB_BRACE|GLOB_NOCHECK|GLOB_TILDE; + memset(&gl, 0, sizeof(gl)); + if (glob(pattern, flags, NULL, &gl) || gl.gl_pathc == 0) { + warnx("%s: not found", pattern); + globfree(&gl); + return (NULL); + } + p = xstrdup(gl.gl_pathv[0]); + globfree(&gl); + return (p); +} + +/* + * determine size of remote file + */ +off_t +remotesize(const char *file, int noisy) +{ + int overbose, r; + off_t size; + + overbose = verbose; + size = -1; + if (debug == 0) + verbose = -1; + if (! features[FEAT_SIZE]) { + if (noisy) + fprintf(ttyout, + "SIZE is not supported by remote server.\n"); + goto cleanup_remotesize; + } + r = command("SIZE %s", file); + if (r == COMPLETE) { + char *cp, *ep; + + cp = strchr(reply_string, ' '); + if (cp != NULL) { + cp++; + size = STRTOLL(cp, &ep, 10); + if (*ep != '\0' && !isspace((unsigned char)*ep)) + size = -1; + } + } else { + if (r == ERROR && code == 500 && features[FEAT_SIZE] == -1) + features[FEAT_SIZE] = 0; + if (noisy && debug == 0) { + fputs(reply_string, ttyout); + putc('\n', ttyout); + } + } + cleanup_remotesize: + verbose = overbose; + return (size); +} + +/* + * determine last modification time (in GMT) of remote file + */ +time_t +remotemodtime(const char *file, int noisy) +{ + int overbose, ocode, r; + time_t rtime; + + overbose = verbose; + ocode = code; + rtime = -1; + if (debug == 0) + verbose = -1; + if (! features[FEAT_MDTM]) { + if (noisy) + fprintf(ttyout, + "MDTM is not supported by remote server.\n"); + goto cleanup_parse_time; + } + r = command("MDTM %s", file); + if (r == COMPLETE) { + struct tm timebuf; + char *timestr, *frac; + int yy, mo, day, hour, min, sec; + + /* + * time-val = 14DIGIT [ "." 1*DIGIT ] + * YYYYMMDDHHMMSS[.sss] + * mdtm-response = "213" SP time-val CRLF / error-response + */ + timestr = reply_string + 4; + + /* + * parse fraction. + * XXX: ignored for now + */ + frac = strchr(timestr, '\r'); + if (frac != NULL) + *frac = '\0'; + frac = strchr(timestr, '.'); + if (frac != NULL) + *frac++ = '\0'; + if (strlen(timestr) == 15 && strncmp(timestr, "191", 3) == 0) { + /* + * XXX: Workaround for lame ftpd's that return + * `19100' instead of `2000' + */ + fprintf(ttyout, + "Y2K warning! Incorrect time-val `%s' received from server.\n", + timestr); + timestr++; + timestr[0] = '2'; + timestr[1] = '0'; + fprintf(ttyout, "Converted to `%s'\n", timestr); + } + if (strlen(timestr) != 14 || + sscanf(timestr, "%04d%02d%02d%02d%02d%02d", + &yy, &mo, &day, &hour, &min, &sec) != 6) { + bad_parse_time: + fprintf(ttyout, "Can't parse time `%s'.\n", timestr); + goto cleanup_parse_time; + } + memset(&timebuf, 0, sizeof(timebuf)); + timebuf.tm_sec = sec; + timebuf.tm_min = min; + timebuf.tm_hour = hour; + timebuf.tm_mday = day; + timebuf.tm_mon = mo - 1; + timebuf.tm_year = yy - TM_YEAR_BASE; + timebuf.tm_isdst = -1; + rtime = timegm(&timebuf); + if (rtime == -1) { + if (noisy || debug != 0) + goto bad_parse_time; + else + goto cleanup_parse_time; + } else if (debug) + fprintf(ttyout, "parsed date as: %s", ctime(&rtime)); + } else { + if (r == ERROR && code == 500 && features[FEAT_MDTM] == -1) + features[FEAT_MDTM] = 0; + if (noisy && debug == 0) { + fputs(reply_string, ttyout); + putc('\n', ttyout); + } + } + cleanup_parse_time: + verbose = overbose; + if (rtime == -1) + code = ocode; + return (rtime); +} + +/* + * update global `remotepwd', which contains the state of the remote cwd + */ +void +updateremotepwd(void) +{ + int overbose, ocode, i; + char *cp; + + overbose = verbose; + ocode = code; + if (debug == 0) + verbose = -1; + if (command("PWD") != COMPLETE) + goto badremotepwd; + cp = strchr(reply_string, ' '); + if (cp == NULL || cp[0] == '\0' || cp[1] != '"') + goto badremotepwd; + cp += 2; + for (i = 0; *cp && i < sizeof(remotepwd) - 1; i++, cp++) { + if (cp[0] == '"') { + if (cp[1] == '"') + cp++; + else + break; + } + remotepwd[i] = *cp; + } + remotepwd[i] = '\0'; + if (debug) + fprintf(ttyout, "got remotepwd as `%s'\n", remotepwd); + goto cleanupremotepwd; + badremotepwd: + remotepwd[0]='\0'; + cleanupremotepwd: + verbose = overbose; + code = ocode; +} + + +/* + * List words in stringlist, vertically arranged + */ +void +list_vertical(StringList *sl) +{ + int i, j, w; + int columns, width, lines; + char *p; + + width = 0; + + for (i = 0 ; i < sl->sl_cur ; i++) { + w = strlen(sl->sl_str[i]); + if (w > width) + width = w; + } + width = (width + 8) &~ 7; + + columns = ttywidth / width; + if (columns == 0) + columns = 1; + lines = (sl->sl_cur + columns - 1) / columns; + for (i = 0; i < lines; i++) { + for (j = 0; j < columns; j++) { + p = sl->sl_str[j * lines + i]; + if (p) + fputs(p, ttyout); + if (j * lines + i + lines >= sl->sl_cur) { + putc('\n', ttyout); + break; + } + w = strlen(p); + while (w < width) { + w = (w + 8) &~ 7; + (void)putc('\t', ttyout); + } + } + } +} + +/* + * Update the global ttywidth value, using TIOCGWINSZ. + */ +void +setttywidth(int a) +{ + struct winsize winsize; + int oerrno = errno; + + if (ioctl(fileno(ttyout), TIOCGWINSZ, &winsize) != -1 && + winsize.ws_col != 0) + ttywidth = winsize.ws_col; + else + ttywidth = 80; + errno = oerrno; +} + +/* + * Change the rate limit up (SIGUSR1) or down (SIGUSR2) + */ +void +crankrate(int sig) +{ + + switch (sig) { + case SIGUSR1: + if (rate_get) + rate_get += rate_get_incr; + if (rate_put) + rate_put += rate_put_incr; + break; + case SIGUSR2: + if (rate_get && rate_get > rate_get_incr) + rate_get -= rate_get_incr; + if (rate_put && rate_put > rate_put_incr) + rate_put -= rate_put_incr; + break; + default: + err(1, "crankrate invoked with unknown signal: %d", sig); + } +} + + +/* + * Setup or cleanup EditLine structures + */ +#ifndef NO_EDITCOMPLETE +void +controlediting(void) +{ + if (editing && el == NULL && hist == NULL) { + HistEvent ev; + int editmode; + + el = el_init(getprogname(), stdin, ttyout, stderr); + /* init editline */ + hist = history_init(); /* init the builtin history */ + history(hist, &ev, H_SETSIZE, 100);/* remember 100 events */ + el_set(el, EL_HIST, history, hist); /* use history */ + + el_set(el, EL_EDITOR, "emacs"); /* default editor is emacs */ + el_set(el, EL_PROMPT, prompt); /* set the prompt functions */ + el_set(el, EL_RPROMPT, rprompt); + + /* add local file completion, bind to TAB */ + el_set(el, EL_ADDFN, "ftp-complete", + "Context sensitive argument completion", + complete); + el_set(el, EL_BIND, "^I", "ftp-complete", NULL); + el_source(el, NULL); /* read ~/.editrc */ + if ((el_get(el, EL_EDITMODE, &editmode) != -1) && editmode == 0) + editing = 0; /* the user doesn't want editing, + * so disable, and let statement + * below cleanup */ + else + el_set(el, EL_SIGNAL, 1); + } + if (!editing) { + if (hist) { + history_end(hist); + hist = NULL; + } + if (el) { + el_end(el); + el = NULL; + } + } +} +#endif /* !NO_EDITCOMPLETE */ + +/* + * Convert the string `arg' to an int, which may have an optional SI suffix + * (`b', `k', `m', `g'). Returns the number for success, -1 otherwise. + */ +int +strsuftoi(const char *arg) +{ + char *cp; + long val; + + if (!isdigit((unsigned char)arg[0])) + return (-1); + + val = strtol(arg, &cp, 10); + if (cp != NULL) { + if (cp[0] != '\0' && cp[1] != '\0') + return (-1); + switch (tolower((unsigned char)cp[0])) { + case '\0': + case 'b': + break; + case 'k': + val <<= 10; + break; + case 'm': + val <<= 20; + break; + case 'g': + val <<= 30; + break; + default: + return (-1); + } + } + if (val < 0 || val > INT_MAX) + return (-1); + + return (val); +} + +/* + * Set up socket buffer sizes before a connection is made. + */ +void +setupsockbufsize(int sock) +{ + + if (setsockopt(sock, SOL_SOCKET, SO_SNDBUF, (void *) &sndbuf_size, + sizeof(rcvbuf_size)) < 0) + warn("unable to set sndbuf size %d", sndbuf_size); + + if (setsockopt(sock, SOL_SOCKET, SO_RCVBUF, (void *) &rcvbuf_size, + sizeof(rcvbuf_size)) < 0) + warn("unable to set rcvbuf size %d", rcvbuf_size); +} + +/* + * Copy characters from src into dst, \ quoting characters that require it + */ +void +ftpvis(char *dst, size_t dstlen, const char *src, size_t srclen) +{ + int di, si; + + for (di = si = 0; + src[si] != '\0' && di < dstlen && si < srclen; + di++, si++) { + switch (src[si]) { + case '\\': + case ' ': + case '\t': + case '\r': + case '\n': + case '"': + dst[di++] = '\\'; + if (di >= dstlen) + break; + /* FALLTHROUGH */ + default: + dst[di] = src[si]; + } + } + dst[di] = '\0'; +} + +/* + * Copy src into buf (which is len bytes long), expanding % sequences. + */ +void +formatbuf(char *buf, size_t len, const char *src) +{ + const char *p; + char *p2, *q; + int i, op, updirs, pdirs; + +#define ADDBUF(x) do { \ + if (i >= len - 1) \ + goto endbuf; \ + buf[i++] = (x); \ + } while (0) + + p = src; + for (i = 0; *p; p++) { + if (*p != '%') { + ADDBUF(*p); + continue; + } + p++; + + switch (op = *p) { + + case '/': + case '.': + case 'c': + p2 = connected ? remotepwd : ""; + updirs = pdirs = 0; + + /* option to determine fixed # of dirs from path */ + if (op == '.' || op == 'c') { + int skip; + + q = p2; + while (*p2) /* calc # of /'s */ + if (*p2++ == '/') + updirs++; + if (p[1] == '0') { /* print <x> or ... */ + pdirs = 1; + p++; + } + if (p[1] >= '1' && p[1] <= '9') { + /* calc # to skip */ + skip = p[1] - '0'; + p++; + } else + skip = 1; + + updirs -= skip; + while (skip-- > 0) { + while ((p2 > q) && (*p2 != '/')) + p2--; /* back up */ + if (skip && p2 > q) + p2--; + } + if (*p2 == '/' && p2 != q) + p2++; + } + + if (updirs > 0 && pdirs) { + if (i >= len - 5) + break; + if (op == '.') { + ADDBUF('.'); + ADDBUF('.'); + ADDBUF('.'); + } else { + ADDBUF('/'); + ADDBUF('<'); + if (updirs > 9) { + ADDBUF('9'); + ADDBUF('+'); + } else + ADDBUF('0' + updirs); + ADDBUF('>'); + } + } + for (; *p2; p2++) + ADDBUF(*p2); + break; + + case 'M': + case 'm': + for (p2 = connected && username ? username : "-"; + *p2 ; p2++) { + if (op == 'm' && *p2 == '.') + break; + ADDBUF(*p2); + } + break; + + case 'n': + for (p2 = connected ? username : "-"; *p2 ; p2++) + ADDBUF(*p2); + break; + + case '%': + ADDBUF('%'); + break; + + default: /* display unknown codes literally */ + ADDBUF('%'); + ADDBUF(op); + break; + + } + } + endbuf: + buf[i] = '\0'; +} + +/* + * Parse `port' into a TCP port number, defaulting to `defport' if `port' is + * an unknown service name. If defport != -1, print a warning upon bad parse. + */ +int +parseport(const char *port, int defport) +{ + int rv; + long nport; + char *p, *ep; + + p = xstrdup(port); + nport = strtol(p, &ep, 10); + if (*ep != '\0' && ep == p) { + struct servent *svp; + + svp = getservbyname(port, "tcp"); + if (svp == NULL) { + badparseport: + if (defport != -1) + warnx("Unknown port `%s', using port %d", + port, defport); + rv = defport; + } else + rv = ntohs(svp->s_port); + } else if (nport < 1 || nport > MAX_IN_PORT_T || *ep != '\0') + goto badparseport; + else + rv = nport; + free(p); + return (rv); +} + +/* + * Determine if given string is an IPv6 address or not. + * Return 1 for yes, 0 for no + */ +int +isipv6addr(const char *addr) +{ + int rv = 0; +#ifdef INET6 + struct addrinfo hints, *res; + + memset(&hints, 0, sizeof(hints)); + hints.ai_family = PF_INET6; + hints.ai_socktype = SOCK_DGRAM; /*dummy*/ + hints.ai_flags = AI_NUMERICHOST; + if (getaddrinfo(addr, "0", &hints, &res) != 0) + rv = 0; + else { + rv = 1; + freeaddrinfo(res); + } + if (debug) + fprintf(ttyout, "isipv6addr: got %d for %s\n", rv, addr); +#endif + return (rv == 1) ? 1 : 0; +} + + +/* + * Internal version of connect(2); sets socket buffer sizes first. + */ +int +xconnect(int sock, const struct sockaddr *name, int namelen) +{ + + setupsockbufsize(sock); + return (connect(sock, name, namelen)); +} + +/* + * Internal version of listen(2); sets socket buffer sizes first. + */ +int +xlisten(int sock, int backlog) +{ + + setupsockbufsize(sock); + return (listen(sock, backlog)); +} + +/* + * malloc() with inbuilt error checking + */ +void * +xmalloc(size_t size) +{ + void *p; + + p = malloc(size); + if (p == NULL) + err(1, "Unable to allocate %ld bytes of memory", (long)size); + return (p); +} + +/* + * sl_init() with inbuilt error checking + */ +StringList * +xsl_init(void) +{ + StringList *p; + + p = sl_init(); + if (p == NULL) + err(1, "Unable to allocate memory for stringlist"); + return (p); +} + +/* + * sl_add() with inbuilt error checking + */ +void +xsl_add(StringList *sl, char *i) +{ + + if (sl_add(sl, i) == -1) + err(1, "Unable to add `%s' to stringlist", i); +} + +/* + * strdup() with inbuilt error checking + */ +char * +xstrdup(const char *str) +{ + char *s; + + if (str == NULL) + errx(1, "xstrdup() called with NULL argument"); + s = strdup(str); + if (s == NULL) + err(1, "Unable to allocate memory for string copy"); + return (s); +} diff --git a/net/tnftp/files/src/version.h b/net/tnftp/files/src/version.h new file mode 100644 index 00000000000..32dc885e7cb --- /dev/null +++ b/net/tnftp/files/src/version.h @@ -0,0 +1,44 @@ +/* $NetBSD: version.h,v 1.1.1.1 2003/07/31 07:13:01 lukem Exp $ */ +/*- + * Copyright (c) 1999-2003 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Luke Mewburn. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef FTP_PRODUCT +#define FTP_PRODUCT "NetBSD-ftp" +#endif + +#ifndef FTP_VERSION +#define FTP_VERSION "20030731b" +#endif |