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-rw-r--r--usr/src/lib/libcmd/common/cksum.c632
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diff --git a/usr/src/lib/libcmd/common/cksum.c b/usr/src/lib/libcmd/common/cksum.c
deleted file mode 100644
index c42e865b09..0000000000
--- a/usr/src/lib/libcmd/common/cksum.c
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-/***********************************************************************
-* *
-* This software is part of the ast package *
-* Copyright (c) 1992-2010 AT&T Intellectual Property *
-* and is licensed under the *
-* Common Public License, Version 1.0 *
-* by AT&T Intellectual Property *
-* *
-* A copy of the License is available at *
-* http://www.opensource.org/licenses/cpl1.0.txt *
-* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
-* *
-* Information and Software Systems Research *
-* AT&T Research *
-* Florham Park NJ *
-* *
-* Glenn Fowler <gsf@research.att.com> *
-* David Korn <dgk@research.att.com> *
-* *
-***********************************************************************/
-#pragma prototyped
-/*
- * Glenn Fowler
- * AT&T Research
- *
- * sum -- list file checksum and size
- */
-
-static const char usage[] =
-"[-?\n@(#)$Id: sum (AT&T Research) 2009-11-28 $\n]"
-USAGE_LICENSE
-"[+NAME?cksum,md5sum,sum - print file checksum and block count]"
-"[+DESCRIPTION?\bsum\b lists the checksum, and for most methods the block"
-" count, for each file argument. The standard input is read if there are"
-" no \afile\a arguments. \bgetconf UNIVERSE\b determines the default"
-" \bsum\b method: \batt\b for the \batt\b universe, \bbsd\b otherwise."
-" The default for the other commands is the command name itself. The"
-" \batt\b method is a true sum, all others are order dependent.]"
-"[+?Method names consist of a leading identifier and 0 or more options"
-" separated by -.]"
-"[+?\bgetconf PATH_RESOLVE\b determines how symbolic links are handled. This"
-" can be explicitly overridden by the \b--logical\b, \b--metaphysical\b,"
-" and \b--physical\b options below. \bPATH_RESOLVE\b can be one of:]{"
-" [+logical?Follow all symbolic links.]"
-" [+metaphysical?Follow command argument symbolic links,"
-" otherwise don't follow.]"
-" [+physical?Don't follow symbolic links.]"
-"}"
-
-"[a:all?List the checksum for all files. Use with \b--total\b to list both"
-" individual and total checksums and block counts.]"
-"[b:binary?Read files in binary mode. This is the default.]"
-"[B:scale?Block count scale (bytes per block) override for methods that"
-" include size in the output. The default is method specific.]#[scale]"
-"[c:check?Each \afile\a is interpreted as the output from a previous \bsum\b."
-" If \b--header\b or \b--permissions\b was specified in the previous"
-" \bsum\b then the checksum method is automatically determined,"
-" otherwise \b--method\b must be specified. The listed checksum is"
-" compared with the current value and a warning is issued for each file"
-" that does not match. If \afile\a was generated by \b--permissions\b"
-" then the file mode, user and group are also checked. Empty lines,"
-" lines starting with \b#<space>\b, or the line \b#\b are ignored. Lines"
-" containing no blanks are interpreted as [no]]\aname\a[=\avalue\a]]"
-" options:]{"
-" [+method=name?Checksum method to apply to subsequent lines.]"
-" [+permissions?Subsequent lines were generated with"
-" \b--permissions\b.]"
-"}"
-"[h:header?Print the checksum method as the first output line. Used with"
-" \b--check\b and \b--permissions\b.]"
-"[l:list?Each \afile\a is interpreted as a list of files, one per line,"
-" that is checksummed.]"
-"[p:permissions?If \b--check\b is not specified then list the file"
-" mode, user and group between the checksum and path. User and group"
-" matching the caller are output as \b-\b. If \b--check\b is"
-" specified then the mode, user and group for each path in \afile\a"
-" are updated if necessary to match those in \afile\a. A warning is"
-" printed on the standard error for each changed file.]"
-"[R:recursive?Recursively checksum the contents of directories.]"
-"[S:silent|status?No output for \b--check\b; 0 exit status means all sums"
-" matched, non-0 means at least one sum failed to match. Ignored for"
-" \b--permissions\b.]"
-"[t:total?List only the total checksum and block count of all files."
-" \b--all\b \b--total\b lists each checksum and the total. The"
-" total checksum and block count may be different from the checksum"
-" and block count of the catenation of all files due to partial"
-" blocks that may occur when the files are treated separately.]"
-"[T:text?Read files in text mode (i.e., treat \b\\r\\n\b as \b\\n\b).]"
-"[w!:warn?Warn about invalid \b--check\b lines.]"
-"[x:method|algorithm?Specifies the checksum \amethod\a to"
-" apply. Parenthesized method options are readonly implementation"
-" details.]:[method]{\fmethods\f}"
-"[L:logical|follow?Follow symbolic links when traversing directories. The"
-" default is determined by \bgetconf PATH_RESOLVE\b.]"
-"[H:metaphysical?Follow command argument symbolic links, otherwise don't"
-" follow symbolic links when traversing directories. The default is"
-" determined by \bgetconf PATH_RESOLVE\b.]"
-"[P:physical?Don't follow symbolic links when traversing directories. The"
-" default is determined by \bgetconf PATH_RESOLVE\b.]"
-"[r:bsd?Equivalent to \b--method=bsd --scale=512\b for compatibility with"
-" other \bsum\b(1) implementations.]"
-"[s:sysv?Equivalent to \b--method=sys5\b for compatibility with other"
-" \bsum\b(1) implementations.]"
-
-"\n"
-"\n[ file ... ]\n"
-"\n"
-
-"[+SEE ALSO?\bgetconf\b(1), \btw\b(1), \buuencode\b(1)]"
-;
-
-#include <cmd.h>
-#include <sum.h>
-#include <ls.h>
-#include <modex.h>
-#include <fts_fix.h>
-#include <error.h>
-
-typedef struct State_s /* program state */
-{
- int all; /* list all items */
- Sfio_t* check; /* check previous output */
- int flags; /* sumprint() SUM_* flags */
- gid_t gid; /* caller gid */
- int header; /* list method on output */
- int list; /* list file name too */
- Sum_t* oldsum; /* previous sum method */
- int permissions; /* include mode,uer,group */
- int haveperm; /* permissions in the input */
- int recursive; /* recursively descend dirs */
- size_t scale; /* scale override */
- unsigned long size; /* combined size of all files */
- int silent; /* silent check, 0 exit if ok */
- int (*sort)(FTSENT* const*, FTSENT* const*);
- Sum_t* sum; /* sum method */
- int text; /* \r\n == \n */
- int total; /* list totals only */
- uid_t uid; /* caller uid */
- int warn; /* invalid check line warnings */
-} State_t;
-
-static void verify(State_t*, char*, char*, Sfio_t*);
-
-/*
- * open path for read mode
- */
-
-static Sfio_t*
-openfile(const char* path, const char* mode)
-{
- Sfio_t* sp;
-
- if (!path || streq(path, "-") || streq(path, "/dev/stdin") || streq(path, "/dev/fd/0"))
- {
- sp = sfstdin;
- sfopen(sp, NiL, mode);
- }
- else if (!(sp = sfopen(NiL, path, mode)))
- error(ERROR_SYSTEM|2, "%s: cannot read", path);
- return sp;
-}
-
-/*
- * close an openfile() stream
- */
-
-static int
-closefile(Sfio_t* sp)
-{
- return sp == sfstdin ? 0 : sfclose(sp);
-}
-
-/*
- * compute and print sum on an open file
- */
-
-static void
-pr(State_t* state, Sfio_t* op, Sfio_t* ip, char* file, int perm, struct stat* st, Sfio_t* check)
-{
- register char* p;
- register char* r;
- register char* e;
- register int peek;
- struct stat ss;
-
- if (check)
- {
- state->oldsum = state->sum;
- while (p = sfgetr(ip, '\n', 1))
- verify(state, p, file, check);
- state->sum = state->oldsum;
- if (state->warn && !sfeof(ip))
- error(2, "%s: last line incomplete", file);
- return;
- }
- suminit(state->sum);
- if (state->text)
- {
- peek = 0;
- while (p = sfreserve(ip, SF_UNBOUND, 0))
- {
- e = p + sfvalue(ip);
- if (peek)
- {
- peek = 0;
- if (*p != '\n')
- sumblock(state->sum, "\r", 1);
- }
- while (r = memchr(p, '\r', e - p))
- {
- if (++r >= e)
- {
- e--;
- peek = 1;
- break;
- }
- sumblock(state->sum, p, r - p - (*r == '\n'));
- p = r;
- }
- sumblock(state->sum, p, e - p);
- }
- if (peek)
- sumblock(state->sum, "\r", 1);
- }
- else
- while (p = sfreserve(ip, SF_UNBOUND, 0))
- sumblock(state->sum, p, sfvalue(ip));
- if (sfvalue(ip))
- error(ERROR_SYSTEM|2, "%s: read error", file);
- sumdone(state->sum);
- if (!state->total || state->all)
- {
- sumprint(state->sum, op, state->flags|SUM_SCALE, state->scale);
- if (perm >= 0)
- {
- if (perm)
- {
- if (!st && fstat(sffileno(ip), st = &ss))
- error(ERROR_SYSTEM|2, "%s: cannot stat", file);
- else
- sfprintf(sfstdout, " %04o %s %s",
- modex(st->st_mode & S_IPERM),
- (st->st_uid != state->uid && ((st->st_mode & S_ISUID) || (st->st_mode & S_IRUSR) && !(st->st_mode & (S_IRGRP|S_IROTH)) || (st->st_mode & S_IXUSR) && !(st->st_mode & (S_IXGRP|S_IXOTH)))) ? fmtuid(st->st_uid) : "-",
- (st->st_gid != state->gid && ((st->st_mode & S_ISGID) || (st->st_mode & S_IRGRP) && !(st->st_mode & S_IROTH) || (st->st_mode & S_IXGRP) && !(st->st_mode & S_IXOTH))) ? fmtgid(st->st_gid) : "-");
- }
- if (ip != sfstdin)
- sfprintf(op, " %s", file);
- sfputc(op, '\n');
- }
- }
-}
-
-/*
- * verify previous sum output
- */
-
-static void
-verify(State_t* state, register char* s, char* check, Sfio_t* rp)
-{
- register char* t;
- char* e;
- char* file;
- int attr;
- int mode;
- int uid;
- int gid;
- Sfio_t* sp;
- struct stat st;
-
- if (!*s || *s == '#' && (!*(s + 1) || *(s + 1) == ' ' || *(s + 1) == '\t'))
- return;
- if (t = strchr(s, ' '))
- {
- if ((t - s) > 10 || !(file = strchr(t + 1, ' ')))
- file = t;
- *file++ = 0;
- attr = 0;
- if ((mode = strtol(file, &e, 8)) && *e == ' ' && (e - file) == 4)
- {
- mode = modei(mode);
- if (t = strchr(++e, ' '))
- {
- if (*e == '-' && (t - e) == 1)
- uid = -1;
- else
- {
- *t = 0;
- uid = struid(e);
- *t = ' ';
- }
- if (e = strchr(++t, ' '))
- {
- if (*t == '-' && (e - t) == 1)
- gid = -1;
- else
- {
- *e = 0;
- gid = struid(t);
- *e = ' ';
- }
- file = e + 1;
- attr = 1;
- }
- }
- }
- if (sp = openfile(file, "rb"))
- {
- pr(state, rp, sp, file, -1, NiL, NiL);
- if (!(t = sfstruse(rp)))
- error(ERROR_SYSTEM|3, "out of space");
- if (!streq(s, t))
- {
- if (state->silent)
- error_info.errors++;
- else
- error(2, "%s: checksum changed", file);
- }
- else if (attr)
- {
- if (fstat(sffileno(sp), &st))
- {
- if (state->silent)
- error_info.errors++;
- else
- error(ERROR_SYSTEM|2, "%s: cannot stat", file);
- }
- else
- {
- if (uid < 0 || uid == st.st_uid)
- uid = -1;
- else if (!state->permissions)
- {
- if (state->silent)
- error_info.errors++;
- else
- error(2, "%s: uid should be %s", file, fmtuid(uid));
- }
- if (gid < 0 || gid == st.st_gid)
- gid = -1;
- else if (!state->permissions)
- {
- if (state->silent)
- error_info.errors++;
- else
- error(2, "%s: gid should be %s", file, fmtgid(gid));
- }
- if (state->permissions && (uid >= 0 || gid >= 0))
- {
- if (chown(file, uid, gid) < 0)
- {
- if (uid < 0)
- error(ERROR_SYSTEM|2, "%s: cannot change group to %s", file, fmtgid(gid));
- else if (gid < 0)
- error(ERROR_SYSTEM|2, "%s: cannot change user to %s", file, fmtuid(uid));
- else
- error(ERROR_SYSTEM|2, "%s: cannot change user to %s and group to %s", file, fmtuid(uid), fmtgid(gid));
- }
- else
- {
- if (uid < 0)
- error(1, "%s: changed group to %s", file, fmtgid(gid));
- else if (gid < 0)
- error(1, "%s: changed user to %s", file, fmtuid(uid));
- else
- error(1, "%s: changed user to %s and group to %s", file, fmtuid(uid), fmtgid(gid));
- }
- }
- if ((st.st_mode & S_IPERM) ^ mode)
- {
- if (state->permissions)
- {
- if (chmod(file, mode) < 0)
- error(ERROR_SYSTEM|2, "%s: cannot change mode to %s", file, fmtmode(mode, 0));
- else
- error(ERROR_SYSTEM|1, "%s: changed mode to %s", file, fmtmode(mode, 0));
- }
- else if (state->silent)
- error_info.errors++;
- else
- error(2, "%s: mode should be %s", file, fmtmode(mode, 0));
- }
- }
- }
- closefile(sp);
- }
- }
- else if (strneq(s, "method=", 7))
- {
- s += 7;
- if (state->sum != state->oldsum)
- sumclose(state->sum);
- if (!(state->sum = sumopen(s)))
- error(3, "%s: %s: unknown checksum method", check, s);
- }
- else if (streq(s, "permissions"))
- state->haveperm = 1;
- else
- error(1, "%s: %s: unknown option", check, s);
-}
-
-/*
- * sum the list of files in lp
- */
-
-static void
-list(State_t* state, register Sfio_t* lp)
-{
- register char* file;
- register Sfio_t* sp;
-
- while (file = sfgetr(lp, '\n', 1))
- if (sp = openfile(file, state->check ? "rt" : "rb"))
- {
- pr(state, sfstdout, sp, file, state->permissions, NiL, state->check);
- closefile(sp);
- }
-}
-
-/*
- * order child entries
- */
-
-static int
-order(FTSENT* const* f1, FTSENT* const* f2)
-{
- return strcoll((*f1)->fts_name, (*f2)->fts_name);
-}
-
-/*
- * optget() info discipline function
- */
-
-static int
-optinfo(Opt_t* op, Sfio_t* sp, const char* s, Optdisc_t* dp)
-{
- if (streq(s, "methods"))
- return sumusage(sp);
- return 0;
-}
-
-int
-b_cksum(int argc, register char** argv, void* context)
-{
- register int flags;
- char* file;
- char* method;
- Sfio_t* sp;
- FTS* fts;
- FTSENT* ent;
- int logical;
- Optdisc_t optdisc;
- State_t state;
-
- cmdinit(argc, argv, context, ERROR_CATALOG, ERROR_NOTIFY);
- memset(&state, 0, sizeof(state));
- flags = fts_flags() | FTS_TOP | FTS_NOPOSTORDER;
- state.flags = SUM_SIZE;
- state.warn = 1;
- logical = 1;
- method = 0;
- optinit(&optdisc, optinfo);
- for (;;)
- {
- switch (optget(argv, usage))
- {
- case 'a':
- state.all = 1;
- continue;
- case 'b':
- state.text = 0;
- continue;
- case 'B':
- state.scale = opt_info.num;
- continue;
- case 'c':
- if (!(state.check = sfstropen()))
- error(3, "out of space [check]");
- continue;
- case 'h':
- state.header = 1;
- continue;
- case 'l':
- state.list = 1;
- continue;
- case 'p':
- state.permissions = 1;
- continue;
- case 'r':
- method = "bsd";
- state.scale = 512;
- state.flags |= SUM_LEGACY;
- continue;
- case 'R':
- flags &= ~FTS_TOP;
- state.recursive = 1;
- state.sort = order;
- logical = 0;
- continue;
- case 's':
- method = "sys5";
- continue;
- case 'S':
- state.silent = opt_info.num;
- continue;
- case 't':
- state.total = 1;
- continue;
- case 'w':
- state.warn = opt_info.num;
- continue;
- case 'x':
- method = opt_info.arg;
- continue;
- case 'H':
- flags |= FTS_META|FTS_PHYSICAL;
- logical = 0;
- continue;
- case 'L':
- flags &= ~(FTS_META|FTS_PHYSICAL);
- logical = 0;
- continue;
- case 'P':
- flags &= ~FTS_META;
- flags |= FTS_PHYSICAL;
- logical = 0;
- continue;
- case 'T':
- state.text = 1;
- continue;
- case '?':
- error(ERROR_USAGE|4, "%s", opt_info.arg);
- break;
- case ':':
- error(2, "%s", opt_info.arg);
- break;
- }
- break;
- }
- argv += opt_info.index;
- if (error_info.errors)
- error(ERROR_USAGE|4, "%s", optusage(NiL));
-
- /*
- * check the method
- */
-
- if (method && !(state.sum = sumopen(method)))
- error(3, "%s: unknown checksum method", method);
- if (!state.sum && !(state.sum = sumopen(error_info.id)) && !(state.sum = sumopen(astconf("UNIVERSE", NiL, NiL))))
- state.sum = sumopen(NiL);
-
- /*
- * do it
- */
-
- if (logical)
- {
- flags &= ~(FTS_META|FTS_PHYSICAL);
- flags |= FTS_SEEDOTDIR;
- }
- if (state.permissions)
- {
- state.uid = geteuid();
- state.gid = getegid();
- state.silent = 0;
- }
- if (!state.check && (state.header || state.permissions))
- {
- sfprintf(sfstdout, "method=%s\n", state.sum->name);
- if (state.permissions)
- sfprintf(sfstdout, "permissions\n");
- }
- if (state.list)
- {
- if (*argv)
- {
- while (file = *argv++)
- if (sp = openfile(file, "rt"))
- {
- list(&state, sp);
- closefile(sp);
- }
- }
- else if (sp = openfile(NiL, "rt"))
- {
- list(&state, sp);
- closefile(sp);
- }
- }
- else if (!*argv && !state.recursive)
- pr(&state, sfstdout, sfstdin, "/dev/stdin", state.permissions, NiL, state.check);
- else if (!(fts = fts_open(argv, flags, state.sort)))
- error(ERROR_system(1), "%s: not found", *argv);
- else
- {
- while (!sh_checksig(context) && (ent = fts_read(fts)))
- switch (ent->fts_info)
- {
- case FTS_SL:
- if (!(flags & FTS_PHYSICAL) || (flags & FTS_META) && ent->fts_level == 1)
- fts_set(NiL, ent, FTS_FOLLOW);
- break;
- case FTS_F:
- if (sp = openfile(ent->fts_accpath, "rb"))
- {
- pr(&state, sfstdout, sp, ent->fts_path, state.permissions, ent->fts_statp, state.check);
- closefile(sp);
- }
- break;
- case FTS_DC:
- error(ERROR_warn(0), "%s: directory causes cycle", ent->fts_accpath);
- break;
- case FTS_DNR:
- error(ERROR_system(0), "%s: cannot read directory", ent->fts_accpath);
- break;
- case FTS_DNX:
- error(ERROR_system(0), "%s: cannot search directory", ent->fts_accpath);
- break;
- case FTS_NS:
- error(ERROR_system(0), "%s: not found", ent->fts_accpath);
- break;
- }
- fts_close(fts);
- }
- if (state.total)
- {
- sumprint(state.sum, sfstdout, state.flags|SUM_TOTAL|SUM_SCALE, state.scale);
- sfputc(sfstdout, '\n');
- }
- sumclose(state.sum);
- return error_info.errors != 0;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2025-06-03 20:32:03 +0000