GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/rcs/rcsclean.c Lines: 0 86 0.0 %
Date: 2017-11-13 Branches: 0 67 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: rcsclean.c,v 1.56 2016/08/26 09:02:54 guenther Exp $	*/
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/*
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 * Copyright (c) 2005 Joris Vink <joris@openbsd.org>
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. The name of the author may not be used to endorse or promote products
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 *    derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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 * EXEMPLARY, OR CONSEQUENTIAL  DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#include <sys/types.h>
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#include <dirent.h>
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <unistd.h>
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#include "rcsprog.h"
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#include "diff.h"
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static void	rcsclean_file(char *, const char *);
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static int nflag = 0;
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static int kflag = RCS_KWEXP_ERR;
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static int uflag = 0;
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static int flags = 0;
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static char *locker = NULL;
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int
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rcsclean_main(int argc, char **argv)
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{
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	int i, ch;
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	char *rev_str;
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	DIR *dirp;
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	struct dirent *dp;
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	rev_str = NULL;
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	while ((ch = rcs_getopt(argc, argv, "k:n::q::r::Tu::Vx::")) != -1) {
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		switch (ch) {
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		case 'k':
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			kflag = rcs_kflag_get(rcs_optarg);
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			if (RCS_KWEXP_INVAL(kflag)) {
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				warnx("invalid RCS keyword substitution mode");
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				(usage)();
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			}
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			break;
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		case 'n':
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			rcs_setrevstr(&rev_str, rcs_optarg);
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			nflag = 1;
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			break;
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		case 'q':
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			rcs_setrevstr(&rev_str, rcs_optarg);
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			flags |= QUIET;
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			break;
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		case 'r':
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			rcs_setrevstr(&rev_str, rcs_optarg);
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			break;
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		case 'T':
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			flags |= PRESERVETIME;
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			break;
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		case 'u':
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			rcs_setrevstr(&rev_str, rcs_optarg);
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			uflag = 1;
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			break;
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		case 'V':
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			printf("%s\n", rcs_version);
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			exit(0);
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		case 'x':
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			/* Use blank extension if none given. */
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			rcs_suffixes = rcs_optarg ? rcs_optarg : "";
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			break;
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		default:
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			(usage)();
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		}
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	}
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	argc -= rcs_optind;
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	argv += rcs_optind;
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	if ((locker = getlogin()) == NULL)
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		err(1, "getlogin");
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	if (argc == 0) {
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		if ((dirp = opendir(".")) == NULL) {
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			warn("opendir");
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			(usage)();
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		}
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		while ((dp = readdir(dirp)) != NULL) {
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			if (dp->d_type == DT_DIR)
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				continue;
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			rcsclean_file(dp->d_name, rev_str);
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		}
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		(void)closedir(dirp);
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	} else
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		for (i = 0; i < argc; i++)
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			rcsclean_file(argv[i], rev_str);
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	return (0);
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}
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__dead void
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rcsclean_usage(void)
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{
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	fprintf(stderr,
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	    "usage: rcsclean [-TV] [-kmode] [-n[rev]] [-q[rev]] [-r[rev]]\n"
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	    "                [-u[rev]] [-xsuffixes] [-ztz] [file ...]\n");
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	exit(1);
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}
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static void
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rcsclean_file(char *fname, const char *rev_str)
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{
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	int fd, match;
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	RCSFILE *file;
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	char fpath[PATH_MAX], numb[RCS_REV_BUFSZ];
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	RCSNUM *rev;
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	BUF *b1, *b2;
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	time_t rcs_mtime = -1;
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	b1 = b2 = NULL;
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	file = NULL;
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	rev = NULL;
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	if ((fd = rcs_choosefile(fname, fpath, sizeof(fpath))) < 0)
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		goto out;
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	if ((file = rcs_open(fpath, fd, RCS_RDWR)) == NULL)
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		goto out;
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	if (flags & PRESERVETIME)
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		rcs_mtime = rcs_get_mtime(file);
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	rcs_kwexp_set(file, kflag);
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	if (rev_str == NULL)
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		rev = file->rf_head;
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	else if ((rev = rcs_getrevnum(rev_str, file)) == NULL) {
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		warnx("%s: Symbolic name `%s' is undefined.", fpath, rev_str);
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		goto out;
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	}
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	if ((b1 = rcs_getrev(file, rev)) == NULL) {
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		warnx("failed to get needed revision");
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		goto out;
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	}
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	if ((b2 = buf_load(fname)) == NULL) {
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		warnx("failed to load `%s'", fname);
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		goto out;
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	}
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	/* If buffer lengths are the same, compare contents as well. */
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	if (buf_len(b1) != buf_len(b2))
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		match = 0;
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	else {
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		size_t len, n;
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		len = buf_len(b1);
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		match = 1;
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		for (n = 0; n < len; ++n)
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			if (buf_getc(b1, n) != buf_getc(b2, n)) {
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				match = 0;
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				break;
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			}
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	}
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	if (match == 1) {
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		if (uflag == 1 && !TAILQ_EMPTY(&(file->rf_locks))) {
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			if (!(flags & QUIET) && nflag == 0) {
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				printf("rcs -u%s %s\n",
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				    rcsnum_tostr(rev, numb, sizeof(numb)),
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				    fpath);
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			}
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			(void)rcs_lock_remove(file, locker, rev);
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		}
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		if (TAILQ_EMPTY(&(file->rf_locks))) {
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			if (!(flags & QUIET))
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				printf("rm -f %s\n", fname);
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			if (nflag == 0)
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				(void)unlink(fname);
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		}
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	}
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	rcs_write(file);
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	if (flags & PRESERVETIME)
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		rcs_set_mtime(file, rcs_mtime);
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out:
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	buf_free(b1);
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	buf_free(b2);
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	if (file != NULL)
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		rcs_close(file);
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}