/*
* 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[PATH_MAX];
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':
rcsflags |= INTERACTIVE;
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)();
}
break;
case 'L':
if (lkmode == RCS_LOCK_LOOSE)
warnx("-U overridden by -L");
lkmode = RCS_LOCK_STRICT;
break;
case 'l':
if (rcsflags & RCSPROG_UFLAG)
warnx("-u overridden by -l");
lrev = rcs_optarg;
rcsflags &= ~RCSPROG_UFLAG;
rcsflags |= RCSPROG_LFLAG;
break;
case 'm':
free(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':
if (rcsflags & RCSPROG_LFLAG)
warnx("-l overridden by -u");
urev = rcs_optarg;
rcsflags &= ~RCSPROG_LFLAG;
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)();
}
}
argc -= rcs_optind;
argv += rcs_optind;
if (argc == 0) {
warnx("no input file");
(usage)();
}
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, rcsflags) == -1) {
warn("%s", descfile);
rcs_close(file);
continue;
}
}
else if (flags & RCS_CREATE) {
if (rcs_set_description(file, NULL, rcsflags) == -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[PATH_MAX];
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);
free(rap->ra_name);
free(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
rcsclean_file(char *fname, const char *rev_str)
{
int fd, match;
RCSFILE *file;
char fpath[PATH_MAX], numb[RCS_REV_BUFSZ];
RCSNUM *rev;
BUF *b1, *b2;
time_t rcs_mtime = -1;
b1 = b2 = NULL;
file = NULL;
rev = NULL;
if ((fd = rcs_choosefile(fname, fpath, sizeof(fpath))) < 0)
goto out;
if ((file = rcs_open(fpath, fd, RCS_RDWR)) == NULL)
goto out;
if (flags & PRESERVETIME)
rcs_mtime = rcs_get_mtime(file);
rcs_kwexp_set(file, kflag);
if (rev_str == NULL)
rev = file->rf_head;
else if ((rev = rcs_getrevnum(rev_str, file)) == NULL) {
warnx("%s: Symbolic name `%s' is undefined.", fpath, rev_str);
goto out;
}
if ((b1 = rcs_getrev(file, rev)) == NULL) {
warnx("failed to get needed revision");
goto out;
}
if ((b2 = buf_load(fname)) == NULL) {
warnx("failed to load `%s'", fname);
goto out;
}
/* If buffer lengths are the same, compare contents as well. */
if (buf_len(b1) != buf_len(b2))
match = 0;
else {
size_t len, n;
len = buf_len(b1);
match = 1;
for (n = 0; n < len; ++n)
if (buf_getc(b1, n) != buf_getc(b2, n)) {
match = 0;
break;
}
}
if (match == 1) {
if (uflag == 1 && !TAILQ_EMPTY(&(file->rf_locks))) {
if (!(flags & QUIET) && nflag == 0) {
printf("rcs -u%s %s\n",
rcsnum_tostr(rev, numb, sizeof(numb)),
fpath);
}
(void)rcs_lock_remove(file, locker, rev);
}
if (TAILQ_EMPTY(&(file->rf_locks))) {
if (!(flags & QUIET))
printf("rm -f %s\n", fname);
if (nflag == 0)
(void)unlink(fname);
}
}
rcs_write(file);
if (flags & PRESERVETIME)
rcs_set_mtime(file, rcs_mtime);
out:
if (b1 != NULL)
buf_free(b1);
if (b2 != NULL)
buf_free(b2);
if (file != NULL)
rcs_close(file);
}