OpenBSD-4.6/usr.bin/rcs/rcsprog.c
/* $OpenBSD: rcsprog.c,v 1.147 2009/02/15 12:58:01 joris Exp $ */
/*
* Copyright (c) 2005 Jean-Francois Brousseau <jfb@openbsd.org>
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``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 AUTHOR 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 <sys/stat.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "rcsprog.h"
#define RCSPROG_OPTSTRING "A:a:b::c:e::ik:Ll::m:Mn:N:o:qt::TUu::Vx::z::"
const char rcs_version[] = "OpenRCS 4.5";
int rcsflags;
int rcs_optind;
char *rcs_optarg;
char *rcs_suffixes;
char *rcs_tmpdir = RCS_TMPDIR_DEFAULT;
struct rcs_prog {
char *prog_name;
int (*prog_hdlr)(int, char **);
void (*prog_usage)(void);
} programs[] = {
{ "rcs", rcs_main, rcs_usage },
{ "ci", checkin_main, checkin_usage },
{ "co", checkout_main, checkout_usage },
{ "rcsclean", rcsclean_main, rcsclean_usage },
{ "rcsdiff", rcsdiff_main, rcsdiff_usage },
{ "rcsmerge", rcsmerge_main, rcsmerge_usage },
{ "rlog", rlog_main, rlog_usage },
{ "ident", ident_main, ident_usage },
{ "merge", merge_main, merge_usage },
};
struct rcs_wklhead rcs_temp_files;
void sighdlr(int);
static void rcs_attach_symbol(RCSFILE *, const char *);
/* ARGSUSED */
void
sighdlr(int sig)
{
rcs_worklist_clean(&rcs_temp_files, rcs_worklist_unlink);
_exit(1);
}
int
build_cmd(char ***cmd_argv, char **argv, int argc)
{
int cmd_argc, i, cur;
char *cp, *rcsinit, *linebuf, *lp;
if ((rcsinit = getenv("RCSINIT")) == NULL) {
*cmd_argv = argv;
return argc;
}
cur = argc + 2;
cmd_argc = 0;
*cmd_argv = xcalloc(cur, sizeof(char *));
(*cmd_argv)[cmd_argc++] = argv[0];
linebuf = xstrdup(rcsinit);
for (lp = linebuf; lp != NULL;) {
cp = strsep(&lp, " \t\b\f\n\r\t\v");
if (cp == NULL)
break;
if (*cp == '\0')
continue;
if (cmd_argc == cur) {
cur += 8;
*cmd_argv = xrealloc(*cmd_argv, cur,
sizeof(char *));
}
(*cmd_argv)[cmd_argc++] = cp;
}
if (cmd_argc + argc > cur) {
cur = cmd_argc + argc + 1;
*cmd_argv = xrealloc(*cmd_argv, cur,
sizeof(char *));
}
for (i = 1; i < argc; i++)
(*cmd_argv)[cmd_argc++] = argv[i];
(*cmd_argv)[cmd_argc] = NULL;
return cmd_argc;
}
int
main(int argc, char **argv)
{
u_int i;
char **cmd_argv;
int ret, cmd_argc;
ret = -1;
rcs_optind = 1;
SLIST_INIT(&rcs_temp_files);
cmd_argc = build_cmd(&cmd_argv, argv, argc);
if ((rcs_tmpdir = getenv("TMPDIR")) == NULL)
rcs_tmpdir = RCS_TMPDIR_DEFAULT;
signal(SIGHUP, sighdlr);
signal(SIGINT, sighdlr);
signal(SIGQUIT, sighdlr);
signal(SIGABRT, sighdlr);
signal(SIGALRM, sighdlr);
signal(SIGTERM, sighdlr);
for (i = 0; i < (sizeof(programs)/sizeof(programs[0])); i++)
if (strcmp(__progname, programs[i].prog_name) == 0) {
usage = programs[i].prog_usage;
ret = programs[i].prog_hdlr(cmd_argc, cmd_argv);
break;
}
/* clean up temporary files */
rcs_worklist_run(&rcs_temp_files, rcs_worklist_unlink);
exit(ret);
}
void
rcs_usage(void)
{
fprintf(stderr,
"usage: rcs [-IiLqTUV] [-Aoldfile] [-ausers] [-b[rev]]\n"
" [-cstring] [-e[users]] [-kmode] [-l[rev]] [-mrev:msg]\n"
" [-orev] [-tstr] [-u[rev]] [-xsuffixes] file ...\n");
}
/*
* rcs_main()
*
* Handler for the `rcs' program.
* Returns 0 on success, or >0 on error.
*/
int
rcs_main(int argc, char **argv)
{
int fd;
int i, j, ch, flags, kflag, lkmode;
const char *nflag, *oldfilename, *orange;
char fpath[MAXPATHLEN];
char *logstr, *logmsg, *descfile;
char *alist, *comment, *elist, *lrev, *urev;
mode_t fmode;
RCSFILE *file;
RCSNUM *logrev;
struct rcs_access *acp;
time_t rcs_mtime = -1;
kflag = RCS_KWEXP_ERR;
lkmode = RCS_LOCK_INVAL;
fmode = S_IRUSR|S_IRGRP|S_IROTH;
flags = RCS_RDWR|RCS_PARSE_FULLY;
lrev = urev = descfile = NULL;
logstr = alist = comment = elist = NULL;
nflag = oldfilename = orange = NULL;
/* match GNU */
if (1 < argc && argv[1][0] != '-')
warnx("warning: No options were given; "
"this usage is obsolescent.");
while ((ch = rcs_getopt(argc, argv, RCSPROG_OPTSTRING)) != -1) {
switch (ch) {
case 'A':
oldfilename = rcs_optarg;
rcsflags |= CO_ACLAPPEND;
break;
case 'a':
alist = rcs_optarg;
break;
case 'c':
comment = rcs_optarg;
break;
case 'e':
elist = rcs_optarg;
rcsflags |= RCSPROG_EFLAG;
break;
case 'i':
flags |= RCS_CREATE;
break;
case 'k':
kflag = rcs_kflag_get(rcs_optarg);
if (RCS_KWEXP_INVAL(kflag)) {
warnx("invalid RCS keyword substitution mode");
(usage)();
exit(1);
}
break;
case 'L':
if (lkmode == RCS_LOCK_LOOSE)
warnx("-U overridden by -L");
lkmode = RCS_LOCK_STRICT;
break;
case 'l':
/* XXX - Check with -u flag. */
lrev = rcs_optarg;
rcsflags |= RCSPROG_LFLAG;
break;
case 'm':
if (logstr != NULL)
xfree(logstr);
logstr = xstrdup(rcs_optarg);
break;
case 'M':
/* ignore for the moment */
break;
case 'n':
nflag = rcs_optarg;
break;
case 'N':
nflag = rcs_optarg;
rcsflags |= RCSPROG_NFLAG;
break;
case 'o':
orange = rcs_optarg;
break;
case 'q':
rcsflags |= QUIET;
break;
case 't':
descfile = rcs_optarg;
rcsflags |= DESCRIPTION;
break;
case 'T':
rcsflags |= PRESERVETIME;
break;
case 'U':
if (lkmode == RCS_LOCK_STRICT)
warnx("-L overridden by -U");
lkmode = RCS_LOCK_LOOSE;
break;
case 'u':
/* XXX - Check with -l flag. */
urev = rcs_optarg;
rcsflags |= RCSPROG_UFLAG;
break;
case 'V':
printf("%s\n", rcs_version);
exit(0);
case 'x':
/* Use blank extension if none given. */
rcs_suffixes = rcs_optarg ? rcs_optarg : "";
break;
case 'z':
/*
* kept for compatibility
*/
break;
default:
(usage)();
exit(1);
}
}
argc -= rcs_optind;
argv += rcs_optind;
if (argc == 0) {
warnx("no input file");
(usage)();
exit(1);
}
for (i = 0; i < argc; i++) {
fd = rcs_choosefile(argv[i], fpath, sizeof(fpath));
if (fd < 0 && !(flags & RCS_CREATE)) {
warn("%s", fpath);
continue;
}
if (!(rcsflags & QUIET))
(void)fprintf(stderr, "RCS file: %s\n", fpath);
if ((file = rcs_open(fpath, fd, flags, fmode)) == NULL) {
close(fd);
continue;
}
if (rcsflags & DESCRIPTION) {
if (rcs_set_description(file, descfile) == -1) {
warn("%s", descfile);
rcs_close(file);
continue;
}
}
else if (flags & RCS_CREATE) {
if (rcs_set_description(file, NULL) == -1) {
warn("stdin");
rcs_close(file);
continue;
}
}
if (rcsflags & PRESERVETIME)
rcs_mtime = rcs_get_mtime(file);
if (nflag != NULL)
rcs_attach_symbol(file, nflag);
if (logstr != NULL) {
if ((logmsg = strchr(logstr, ':')) == NULL) {
warnx("missing log message");
rcs_close(file);
continue;
}
*logmsg++ = '\0';
if ((logrev = rcsnum_parse(logstr)) == NULL) {
warnx("`%s' bad revision number", logstr);
rcs_close(file);
continue;
}
if (rcs_rev_setlog(file, logrev, logmsg) < 0) {
warnx("failed to set logmsg for `%s' to `%s'",
logstr, logmsg);
rcs_close(file);
rcsnum_free(logrev);
continue;
}
rcsnum_free(logrev);
}
/* entries to add from <oldfile> */
if (rcsflags & CO_ACLAPPEND) {
RCSFILE *oldfile;
int ofd;
char ofpath[MAXPATHLEN];
ofd = rcs_choosefile(oldfilename, ofpath, sizeof(ofpath));
if (ofd < 0) {
if (!(flags & RCS_CREATE))
warn("%s", ofpath);
exit(1);
}
if ((oldfile = rcs_open(ofpath, ofd, RCS_READ)) == NULL)
exit(1);
TAILQ_FOREACH(acp, &(oldfile->rf_access), ra_list)
rcs_access_add(file, acp->ra_name);
rcs_close(oldfile);
(void)close(ofd);
}
/* entries to add to the access list */
if (alist != NULL) {
struct rcs_argvector *aargv;
aargv = rcs_strsplit(alist, ",");
for (j = 0; aargv->argv[j] != NULL; j++)
rcs_access_add(file, aargv->argv[j]);
rcs_argv_destroy(aargv);
}
if (comment != NULL)
rcs_comment_set(file, comment);
if (elist != NULL) {
struct rcs_argvector *eargv;
eargv = rcs_strsplit(elist, ",");
for (j = 0; eargv->argv[j] != NULL; j++)
rcs_access_remove(file, eargv->argv[j]);
rcs_argv_destroy(eargv);
} else if (rcsflags & RCSPROG_EFLAG) {
struct rcs_access *rap;
/* XXX rcs_access_remove(file, NULL); ?? */
while (!TAILQ_EMPTY(&(file->rf_access))) {
rap = TAILQ_FIRST(&(file->rf_access));
TAILQ_REMOVE(&(file->rf_access), rap, ra_list);
xfree(rap->ra_name);
xfree(rap);
}
/* not synced anymore */
file->rf_flags &= ~RCS_SYNCED;
}
rcs_kwexp_set(file, kflag);
if (lkmode != RCS_LOCK_INVAL)
(void)rcs_lock_setmode(file, lkmode);
if (rcsflags & RCSPROG_LFLAG) {
RCSNUM *rev;
const char *username;
char rev_str[RCS_REV_BUFSZ];
if (file->rf_head == NULL) {
warnx("%s contains no revisions", fpath);
rcs_close(file);
continue;
}
if ((username = getlogin()) == NULL)
err(1, "getlogin");
if (lrev == NULL) {
rev = rcsnum_alloc();
rcsnum_cpy(file->rf_head, rev, 0);
} else if ((rev = rcsnum_parse(lrev)) == NULL) {
warnx("unable to unlock file");
rcs_close(file);
continue;
}
rcsnum_tostr(rev, rev_str, sizeof(rev_str));
/* Make sure revision exists. */
if (rcs_findrev(file, rev) == NULL)
errx(1, "%s: cannot lock nonexisting "
"revision %s", fpath, rev_str);
if (rcs_lock_add(file, username, rev) != -1 &&
!(rcsflags & QUIET))
(void)fprintf(stderr, "%s locked\n", rev_str);
rcsnum_free(rev);
}
if (rcsflags & RCSPROG_UFLAG) {
RCSNUM *rev;
const char *username;
char rev_str[RCS_REV_BUFSZ];
if (file->rf_head == NULL) {
warnx("%s contains no revisions", fpath);
rcs_close(file);
continue;
}
if ((username = getlogin()) == NULL)
err(1, "getlogin");
if (urev == NULL) {
rev = rcsnum_alloc();
rcsnum_cpy(file->rf_head, rev, 0);
} else if ((rev = rcsnum_parse(urev)) == NULL) {
warnx("unable to unlock file");
rcs_close(file);
continue;
}
rcsnum_tostr(rev, rev_str, sizeof(rev_str));
/* Make sure revision exists. */
if (rcs_findrev(file, rev) == NULL)
errx(1, "%s: cannot unlock nonexisting "
"revision %s", fpath, rev_str);
if (rcs_lock_remove(file, username, rev) == -1 &&
!(rcsflags & QUIET))
warnx("%s: warning: No locks are set.", fpath);
else {
if (!(rcsflags & QUIET))
(void)fprintf(stderr,
"%s unlocked\n", rev_str);
}
rcsnum_free(rev);
}
if (orange != NULL) {
struct rcs_delta *rdp, *nrdp;
char b[RCS_REV_BUFSZ];
rcs_rev_select(file, orange);
for (rdp = TAILQ_FIRST(&(file->rf_delta));
rdp != NULL; rdp = nrdp) {
nrdp = TAILQ_NEXT(rdp, rd_list);
/*
* Delete selected revisions.
*/
if (rdp->rd_flags & RCS_RD_SELECT) {
rcsnum_tostr(rdp->rd_num, b, sizeof(b));
if (!(rcsflags & QUIET)) {
(void)fprintf(stderr, "deleting"
" revision %s\n", b);
}
(void)rcs_rev_remove(file, rdp->rd_num);
}
}
}
rcs_write(file);
if (rcsflags & PRESERVETIME)
rcs_set_mtime(file, rcs_mtime);
rcs_close(file);
if (!(rcsflags & QUIET))
(void)fprintf(stderr, "done\n");
}
return (0);
}
static void
rcs_attach_symbol(RCSFILE *file, const char *symname)
{
char *rnum;
RCSNUM *rev;
char rbuf[RCS_REV_BUFSZ];
int rm;
rm = 0;
rev = NULL;
if ((rnum = strrchr(symname, ':')) != NULL) {
if (rnum[1] == '\0')
rev = file->rf_head;
*(rnum++) = '\0';
} else {
rm = 1;
}
if (rev == NULL && rm != 1) {
if ((rev = rcsnum_parse(rnum)) == NULL)
errx(1, "bad revision %s", rnum);
}
if (rcsflags & RCSPROG_NFLAG)
rm = 1;
if (rm == 1) {
if (rcs_sym_remove(file, symname) < 0) {
if (rcs_errno == RCS_ERR_NOENT &&
!(rcsflags & RCSPROG_NFLAG))
warnx("cannot delete nonexisting symbol %s",
symname);
} else {
if (rcsflags & RCSPROG_NFLAG)
rm = 0;
}
}
if (rm == 0) {
if (rcs_sym_add(file, symname, rev) < 0 &&
rcs_errno == RCS_ERR_DUPENT) {
rcsnum_tostr(rcs_sym_getrev(file, symname),
rbuf, sizeof(rbuf));
errx(1, "symbolic name %s already bound to %s",
symname, rbuf);
}
}
}