diff options
Diffstat (limited to 'usr/src/cmd/print/bsd-sysv-commands/in.lpd.c')
-rw-r--r-- | usr/src/cmd/print/bsd-sysv-commands/in.lpd.c | 786 |
1 files changed, 786 insertions, 0 deletions
diff --git a/usr/src/cmd/print/bsd-sysv-commands/in.lpd.c b/usr/src/cmd/print/bsd-sysv-commands/in.lpd.c new file mode 100644 index 0000000000..1b058ac291 --- /dev/null +++ b/usr/src/cmd/print/bsd-sysv-commands/in.lpd.c @@ -0,0 +1,786 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ + +/* + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + * + */ + +/* $Id: in.lpd.c 170 2006-05-20 05:58:49Z njacobs $ */ + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <fcntl.h> +#include <stdarg.h> +#include <string.h> +#include <ctype.h> +#include <errno.h> +#include <syslog.h> +#include <libintl.h> +#include <pwd.h> +#include <grp.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <netdb.h> +#include <sys/systeminfo.h> + +#include <papi.h> +#include <uri.h> +#include "common.h" + +#define ACK(fp) { (void) fputc('\0', fp); (void) fflush(fp); } +#define NACK(fp) { (void) fputc('\1', fp); (void) fflush(fp); } + +/* + * This file contains the front-end of the BSD Print Protocol adaptor. This + * code assumes a BSD Socket interface to the networking side. + */ + +static char * +remote_host_name(FILE *fp) +{ + struct hostent *hp; + struct sockaddr_in6 peer; + socklen_t peer_len = sizeof (peer); + int fd = fileno(fp); + int error_num; + char tmp_buf[INET6_ADDRSTRLEN]; + char *hostname; + + /* who is our peer ? */ + if (getpeername(fd, (struct sockaddr *)&peer, &peer_len) < 0) { + if ((errno != ENOTSOCK) && (errno != EINVAL)) + return (NULL); + else + return (strdup("localhost")); + } + + /* get their name or return a string containing their address */ + if ((hp = getipnodebyaddr((const char *)&peer.sin6_addr, + sizeof (struct in6_addr), AF_INET6, + &error_num)) == NULL) { + return (strdup(inet_ntop(peer.sin6_family, + &peer.sin6_addr, tmp_buf, sizeof (tmp_buf)))); + } + + hostname = strdup(hp->h_name); + if (is_localhost(hp->h_name) != 0) + return (strdup("localhost")); + + /* It must be someone else */ + return (hostname); +} + +static void +fatal(FILE *fp, char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + vsyslog(LOG_DEBUG, fmt, ap); + vfprintf(fp, fmt, ap); + va_end(ap); + exit(1); +} + +static void +cleanup(char ***files, char **cf) +{ + if (*files != NULL) { + int i; + + for (i = 0; (*files)[i] != NULL; i++) { + (void) unlink((*files)[i]); + free((*files)[i]); + } + free(*files); + *files = NULL; + } + + if (*cf != NULL) { + free(*cf); + *cf = NULL; + } +} + +static papi_attribute_t ** +parse_cf(papi_service_t svc, char *cf, char **files) +{ + papi_attribute_t **list = NULL; + char previous = NULL; + char *entry; + int copies_set = 0; + int copies = 0; + + for (entry = strtok(cf, "\n"); entry != NULL; + entry = strtok(NULL, "\n")) { + char *format = NULL; + + /* count the copies */ + if ((entry[0] >= 'a') && (entry[0] <= 'z') && + (copies_set == 0) && (previous == entry[0])) + copies++; + else if ((previous >= 'a') && (previous <= 'z')) + copies_set = 1; + previous = entry[0]; + + /* process the control message */ + switch (entry[0]) { + /* RFC-1179 options */ + case 'J': /* RFC-1179 Banner Job Name */ + papiAttributeListAddString(&list, PAPI_ATTR_EXCL, + "job-name", ++entry); + break; + case 'C': /* RFC-1179 Banner Class Name */ + papiAttributeListAddString(&list, PAPI_ATTR_EXCL, + "rfc-1179-class", ++entry); + break; + case 'L': /* RFC-1179 Banner toggle */ + papiAttributeListAddString(&list, PAPI_ATTR_EXCL, + "job-sheets", "standard"); + break; + case 'T': /* RFC-1179 Title (pr) */ + papiAttributeListAddString(&list, PAPI_ATTR_EXCL, + "pr-title", ++entry); + break; + case 'H': /* RFC-1179 Host */ + /* + * use the host as known by us, not by them + * + * papiAttributeListAddString(&list, PAPI_ATTR_EXCL, + * "job-originating-host-name", ++entry); + */ + break; + case 'P': /* RFC-1179 User */ + ++entry; + papiAttributeListAddString(&list, PAPI_ATTR_EXCL, + "job-originating-user-name", entry); + papiServiceSetUserName(svc, entry); + break; + case 'M': /* RFC-1179 Mail to User */ + papiAttributeListAddBoolean(&list, PAPI_ATTR_EXCL, + "rfc-1179-mail", 1); + break; + case 'W': /* RFC-1179 Width (pr) */ + papiAttributeListAddInteger(&list, PAPI_ATTR_EXCL, + "pr-width", atoi(++entry)); + break; + case 'I': /* RFC-1179 Indent (pr) */ + papiAttributeListAddInteger(&list, PAPI_ATTR_EXCL, + "pr-indent", atoi(++entry)); + break; + case 'N': /* RFC-1179 Filename */ + /* could have HPUX extension embedded */ + if (entry[1] != ' ') { /* real pathname */ +#ifdef DEBUG + papiAttributeListAddString(&list, + PAPI_ATTR_EXCL, + "flist", ++entry); +#endif + } else if (entry[2] == 'O') /* HPUX lp -o options */ + papiAttributeListFromString(&list, + PAPI_ATTR_APPEND, ++entry); + break; + case 'U': /* RFC-1179 Unlink */ + break; /* ignored */ + case '1': /* RFC-1179 TROFF Font R */ + papiAttributeListAddString(&list, PAPI_ATTR_EXCL, + "rfc-1179-font-r", ++entry); + break; + case '2': /* RFC-1179 TROFF Font I */ + papiAttributeListAddString(&list, PAPI_ATTR_EXCL, + "rfc-1179-font-i", ++entry); + break; + case '3': /* RFC-1179 TROFF Font B */ + papiAttributeListAddString(&list, PAPI_ATTR_EXCL, + "rfc-1179-font-b", ++entry); + break; + case '4': /* RFC-1179 TROFF Font S */ + papiAttributeListAddString(&list, PAPI_ATTR_EXCL, + "rfc-1179-font-s", ++entry); + break; + case 'f': /* RFC-1179 ASCII file (print) */ + format = "text/plain"; + if (is_postscript(files[0]) == 1) + format = "application/postscript"; + break; + case 'l': /* RFC-1179 CATV file (print) */ + format = "application/octet-stream"; + if (is_postscript(files[0]) == 1) + format = "application/postscript"; + break; + case 'o': /* RFC-1179 Postscript file (print) */ + format = "application/postscript"; + break; + case 'p': /* RFC-1179 PR file (print) */ + format = "application/x-pr"; + papiAttributeListAddBoolean(&list, PAPI_ATTR_EXCL, + "pr-filter", 1); + break; + case 't': /* RFC-1179 TROFF file (print) */ + format = "application/x-troff"; + break; + case 'n': /* RFC-1179 DITROFF file (print) */ + format = "application/x-ditroff"; + break; + case 'd': /* RFC-1179 DVI file (print) */ + format = "application/x-dvi"; + break; + case 'g': /* RFC-1179 GRAPH file (print) */ + format = "application/x-plot"; + break; + case 'c': /* RFC-1179 CIF file (print) */ + format = "application/x-cif"; + break; + case 'v': /* RFC-1179 RASTER file (print) */ + format = "application/x-raster"; + break; + case 'r': /* RFC-1179 FORTRAN file (print) */ + format = "application/x-fortran"; + break; + /* Sun Solaris Extensions */ + case 'O': + ++entry; + { + int rd, wr; + + for (rd = wr = 0; entry[rd] != '\0'; rd++) { + if (entry[rd] == '"') + continue; + if (rd != wr) + entry[wr] = entry[rd]; + wr++; + } + entry[wr] = '\0'; + + papiAttributeListFromString(&list, + PAPI_ATTR_APPEND, entry); + } + break; + case '5': + ++entry; + switch (entry[0]) { + case 'f': /* Solaris form */ + papiAttributeListAddString(&list, + PAPI_ATTR_EXCL, + "form", ++entry); + break; + case 'H': /* Solaris handling */ + ++entry; + if (strcasecmp(entry, "hold") == 0) + papiAttributeListAddString(&list, + PAPI_ATTR_EXCL, + "job-hold-until", "indefinite"); + else if (strcasecmp(entry, "immediate") == 0) + papiAttributeListAddString(&list, + PAPI_ATTR_EXCL, + "job-hold-until", "no-hold"); + else + papiAttributeListAddString(&list, + PAPI_ATTR_EXCL, + "job-hold-until", entry); + break; + case 'p': /* Solaris notification */ + papiAttributeListAddBoolean(&list, + PAPI_ATTR_EXCL, "rfc-1179-mail", 1); + break; + case 'P': { /* Solaris page list */ + char buf[BUFSIZ]; + + snprintf(buf, sizeof (buf), "page-ranges=%s", + ++entry); + papiAttributeListFromString(&list, + PAPI_ATTR_EXCL, buf); + } + break; + case 'q': { /* Solaris priority */ + int i = atoi(++entry); + + i = 100 - (i * 2.5); + if ((i < 1) || (i > 100)) + i = 50; + papiAttributeListAddInteger(&list, + PAPI_ATTR_EXCL, "job-priority", i); + } + break; + case 'S': /* Solaris character set */ + papiAttributeListAddString(&list, + PAPI_ATTR_EXCL, "lp-charset", + ++entry); + break; + case 'T': /* Solaris type */ + format = lp_type_to_mime_type(++entry); + break; + case 'y': /* Solaris mode */ + papiAttributeListAddString(&list, + PAPI_ATTR_APPEND, "lp-modes", ++entry); + break; + default: + syslog(LOG_INFO|LOG_DEBUG, + "Warning: cf message (%s) ignored", + entry); + break; + } + break; + /* Undefined Extensions: SCO, Ultrix, AIX, ... */ + + default: + syslog(LOG_INFO|LOG_DEBUG, + "Warning: cf message (%s) ignored", entry); + break; + } + + if (format != NULL) + papiAttributeListAddString(&list, PAPI_ATTR_EXCL, + "document-format", format); + } + + papiAttributeListAddInteger(&list, PAPI_ATTR_EXCL, + "copies", ++copies); + papiAttributeListAddString(&list, PAPI_ATTR_EXCL, + "job-sheets", "none"); + + return (list); +} + +static papi_status_t +submit_job(papi_service_t svc, FILE *ifp, char *printer, int rid, char *cf, + char **files) +{ + papi_attribute_t **list = NULL; + papi_status_t status; + papi_job_t job = NULL; + char *format = ""; + + if ((list = parse_cf(svc, cf, files)) != NULL) { + /* use the host as known by us, not by them */ + char *host = remote_host_name(ifp); + + if (host != NULL) { + papiAttributeListAddString(&list, PAPI_ATTR_REPLACE, + "job-originating-host-name", host); + free(host); + } + if (rid >= 0) { + papiAttributeListAddInteger(&list, PAPI_ATTR_EXCL, + "job-id-requested", rid); + } + } + + status = papiJobSubmit(svc, printer, list, NULL, files, &job); + syslog(LOG_DEBUG, "submit: %s", papiStatusString(status)); + if (status != PAPI_OK) { + char *tmp = papiServiceGetStatusMessage(svc); + + syslog(LOG_DEBUG, "submit-detail: %s", tmp ? tmp : "none"); + } + papiJobFree(job); + + return (status); +} + +static char * +receive_control_file(papi_service_t svc, FILE *ifp, FILE *ofp, int size) +{ + char *ptr, *cf_data; + + if ((ptr = cf_data = calloc(1, size + 1)) == NULL) { + NACK(ofp); + return (NULL); + } else + ACK(ofp); + + while (size > 0) { + int rc; + + if (((rc = fread(ptr, 1, size, ifp)) == 0) && + (feof(ifp) != 0)) { + free(cf_data); + return (NULL); + } else { + ptr += rc; + size -= rc; + } + } + syslog(LOG_DEBUG, "cf_data(%s)", cf_data); + + if (fgetc(ifp) != 0) { + free(cf_data); + return (NULL); + } + ACK(ofp); + + return (cf_data); +} + +static char * +receive_data_file(FILE *ifp, FILE *ofp, int size) +{ + char file[] = "lpdXXXXXX"; + char buf[BUFSIZ]; + int fd; + + if ((fd = mkstemp(file)) < 0) { + NACK(ofp); + return (NULL); + } else + ACK(ofp); + + while (size > 0) { + int rc = ((size > BUFSIZ) ? BUFSIZ : size); + + if (((rc = fread(buf, 1, rc, ifp)) == 0) && + (feof(ifp) != 0)) { + close(fd); + unlink(file); + return (NULL); + } else { + char *ptr = buf; + + while (rc > 0) { + int wrc = write(fd, ptr, rc); + + if (wrc < 0) { + close(fd); + unlink(file); + return (NULL); + } + + ptr += wrc; + size -= wrc; + rc -= wrc; + } + } + } + close(fd); + if (fgetc(ifp) != 0) { + unlink(file); + return (NULL); + } + ACK(ofp); + + return (strdup(file)); +} + +static papi_status_t +berkeley_receive_files(papi_service_t svc, FILE *ifp, FILE *ofp, char *printer) +{ + papi_status_t status = PAPI_OK; + char *file, **files = NULL; /* the job data files */ + char *cf = NULL; + int rid = 0; + char buf[BUFSIZ]; + + while (fgets(buf, sizeof (buf), ifp) != NULL) { + int size; + + syslog(LOG_DEBUG, "XFER CMD: (%d)%s\n", buf[0], &buf[1]); +#ifdef DEBUG /* translate [1-3]... messages to \[1-3] to run by hand */ + if ((buf[0] > '0') && (buf[0] < '4')) + buf[0] -= '0'; +#endif + switch (buf[0]) { + case 0x01: /* Abort */ + cleanup(&files, &cf); + break; + case 0x02: { /* Receive control file */ + if (((cf = strchr(buf, ' ')) != NULL) && + (strlen(cf) > 4)) { + while ((*cf != NULL) && (isdigit(*cf) == 0)) + cf++; + rid = atoi(cf); + } + cf = receive_control_file(svc, ifp, ofp, atoi(&buf[1])); + if (cf == NULL) { + cleanup(&files, &cf); + return (PAPI_BAD_REQUEST); + } else if (files != NULL) { + status = submit_job(svc, ifp, printer, rid, cf, + files); + cleanup(&files, &cf); + } + } + break; + case 0x03: { /* Receive data file */ + file = receive_data_file(ifp, ofp, atoi(&buf[1])); + if (file == NULL) { + cleanup(&files, &cf); + return (PAPI_TEMPORARY_ERROR); + } + list_append(&files, file); + } + break; + default: + cleanup(&files, &cf); + fatal(ofp, "protocol screwup"); + break; + } + } + + if ((cf != NULL) && (files != NULL)) + status = submit_job(svc, ifp, printer, rid, cf, files); + + cleanup(&files, &cf); + + return (status); +} + +static papi_status_t +berkeley_transfer_files(papi_service_t svc, FILE *ifp, FILE *ofp, + char *printer) +{ + papi_status_t status; + papi_printer_t p = NULL; + char *keys[] = { "printer-is-accepting-jobs", NULL }; + + status = papiPrinterQuery(svc, printer, keys, NULL, &p); + if ((status == PAPI_OK) && (p != NULL)) { + papi_attribute_t **attrs = papiPrinterGetAttributeList(p); + char accepting = PAPI_FALSE; + + papiAttributeListGetBoolean(attrs, NULL, + "printer-is-accepting-jobs", &accepting); + + if (accepting == PAPI_TRUE) { + ACK(ofp); + status = berkeley_receive_files(svc, ifp, ofp, printer); + } else + NACK(ofp); + + papiPrinterFree(p); + } else + NACK(ofp); + + return (status); +} + +static int +cyclical_service_check(char *svc_name) +{ + papi_attribute_t **list; + uri_t *uri = NULL; + char *s = NULL; + + /* was there a printer? */ + if (svc_name == NULL) + return (0); + + if ((list = getprinterbyname(svc_name, NULL)) == NULL) + return (0); /* if it doesnt' resolve, we will fail later */ + + papiAttributeListGetString(list, NULL, "printer-uri-supported", &s); + if ((s == NULL) || (strcasecmp(svc_name, s) != 0)) + return (0); /* they don't match */ + + /* is it in uri form? */ + if (uri_from_string(s, &uri) < 0) + return (0); + + if ((uri == NULL) || (uri->scheme == NULL) || (uri->host == NULL)) { + uri_free(uri); + return (0); + } + + /* is it in lpd form? */ + if (strcasecmp(uri->scheme, "lpd") != 0) { + uri_free(uri); + return (0); + } + + /* is it the local host? */ + if (is_localhost(uri->host) != 0) { + uri_free(uri); + return (0); + } + + uri_free(uri); + return (1); +} + + +/* + * This is the entry point for this program. The program takes the + * following options: + * (none) + */ +int +main(int ac, char *av[]) +{ + papi_status_t status; + papi_service_t svc = NULL; + papi_encryption_t encryption = PAPI_ENCRYPT_NEVER; + FILE *ifp = stdin; + FILE *ofp = stdout; + int c; + char buf[BUFSIZ]; + char **args; + char *printer; + char *run_dir = "/var/run/in.lpd"; + char *run_user = NULL; + struct passwd *pw = NULL; + + (void) chdir("/tmp"); /* run in /tmp by default */ + openlog("bsd-gw", LOG_PID, LOG_LPR); + + while ((c = getopt(ac, av, "Ed:u:")) != EOF) + switch (c) { + case 'E': + encryption = PAPI_ENCRYPT_ALWAYS; + break; + case 'd': /* run where they tell you */ + run_dir = optarg; + break; + case 'u': /* run as */ + run_user = optarg; + break; + default: + ; + } + + if (run_user != NULL) /* get the requested user info */ + pw = getpwnam(run_user); + + if (run_dir != NULL) { /* setup the run_dir */ + (void) mkdir(run_dir, 0700); + if (pw != NULL) + (void) chown(run_dir, pw->pw_uid, pw->pw_gid); + } + + if (pw != NULL) { /* run as the requested user */ + syslog(LOG_DEBUG, "name: %s, uid: %d, gid: %d", + pw->pw_name, pw->pw_uid, pw->pw_gid); + initgroups(pw->pw_name, pw->pw_gid); + setgid(pw->pw_gid); + setuid(pw->pw_uid); + } + + if (run_dir != NULL) /* move to the run_dir */ + if (chdir(run_dir) < 0) { + syslog(LOG_DEBUG, "failed to chdir(%s)", run_dir); + exit(1); + } + + syslog(LOG_DEBUG, "$CWD = %s", getwd(NULL)); + + if (fgets(buf, sizeof (buf), ifp) == NULL) { + if (feof(ifp) == 0) + syslog(LOG_ERR, "Error reading from connection: %s", + strerror(errno)); + exit(1); + } + + syslog(LOG_DEBUG, "CMD: (%d)%s\n", buf[0], &buf[1]); + +#ifdef DEBUG /* translate [1-5]... messages to \[1-5] to run by hand */ + if ((buf[0] > '0') && (buf[0] < '6')) + buf[0] -= '0'; +#endif + + if ((buf[0] < 1) || (buf[0] > 5)) { + fatal(ofp, "Invalid protocol request (%d): %c%s\n", + buf[0], buf[0], buf); + exit(1); + } + + args = strsplit(&buf[1], "\t\n "); + printer = *args++; + + if (printer == NULL) { + fatal(ofp, "Can't determine requested printer"); + exit(1); + } + + if (cyclical_service_check(printer) != 0) { + fatal(ofp, "%s is cyclical\n", printer); + exit(1); + } + + status = papiServiceCreate(&svc, printer, NULL, NULL, NULL, + encryption, NULL); + if (status != PAPI_OK) { + fatal(ofp, "Failed to contact service for %s: %s\n", printer, + verbose_papi_message(svc, status)); + exit(1); + } + + /* + * Trusted Solaris can't be trusting of intermediaries. Pass + * the socket connection to the print service to retrieve the + * sensativity label off of a multi-level port. + */ + (void) papiServiceSetPeer(svc, fileno(ifp)); + + switch (buf[0]) { + case '\1': /* restart printer */ + ACK(ofp); /* there is no equivalent */ + break; + case '\2': /* transfer job(s) */ + status = berkeley_transfer_files(svc, ifp, ofp, printer); + break; + case '\3': /* show queue (short) */ + case '\4': { /* show queue (long) */ + int count; + + for (count = 0; args[count] != 0; count++) {} + + berkeley_queue_report(svc, ofp, printer, buf[0], count, args); + } + break; + case '\5': { /* cancel job(s) */ + char *user = *args++; + char *host = remote_host_name(ifp); + int count; + + if (host != NULL) { + char buf[BUFSIZ]; + + snprintf(buf, sizeof (buf), "%s@%s", user, host); + status = papiServiceSetUserName(svc, buf); + } else + status = papiServiceSetUserName(svc, user); + + for (count = 0; args[count] != 0; count++) {} + + berkeley_cancel_request(svc, ofp, printer, count, args); + } + break; + default: + fatal(ofp, "unsupported protocol request (%c), %s", + buf[0], &buf[1]); + } + + (void) fflush(ofp); + + syslog(LOG_DEBUG, "protocol request(%d) for %s completed: %s", + buf[0], printer, papiStatusString(status)); + if (status != PAPI_OK) + syslog(LOG_DEBUG, "detail: %s", + verbose_papi_message(svc, status)); + + papiServiceDestroy(svc); + + return (0); +} |