129 lines
3.7 KiB
C
129 lines
3.7 KiB
C
/*-
|
|
* Copyright (c) 1990, 1993, 1994
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Hugh Smith at The University of Guelph.
|
|
*
|
|
* 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. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)extract.c 8.3 (Berkeley) 4/2/94";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/time.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include <dirent.h>
|
|
#include <err.h>
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include "archive.h"
|
|
#include "extern.h"
|
|
|
|
/*
|
|
* extract --
|
|
* Extract files from the named archive - if member names given only
|
|
* extract those members otherwise extract all members. If 'o' option
|
|
* selected modify date of newly created file to be same as archive
|
|
* members date otherwise date is time of extraction. Does not modify
|
|
* archive.
|
|
*/
|
|
int
|
|
extract(argv)
|
|
char **argv;
|
|
{
|
|
char *file;
|
|
int afd, all, eval, tfd;
|
|
struct timeval tv[2];
|
|
struct stat sb;
|
|
CF cf;
|
|
|
|
eval = 0;
|
|
tv[0].tv_usec = tv[1].tv_usec = 0;
|
|
|
|
afd = open_archive(O_RDONLY);
|
|
|
|
/* Read from an archive, write to disk; pad on read. */
|
|
SETCF(afd, archive, 0, 0, RPAD);
|
|
for (all = !*argv; get_arobj(afd);) {
|
|
if (all)
|
|
file = chdr.name;
|
|
else if (!(file = files(argv))) {
|
|
skip_arobj(afd);
|
|
continue;
|
|
}
|
|
|
|
if (options & AR_U && !stat(file, &sb) &&
|
|
sb.st_mtime > chdr.date)
|
|
continue;
|
|
|
|
if ((tfd = open(file, O_WRONLY|O_CREAT|O_TRUNC, S_IWUSR)) < 0) {
|
|
warn("%s", file);
|
|
skip_arobj(afd);
|
|
eval = 1;
|
|
continue;
|
|
}
|
|
|
|
if (options & AR_V)
|
|
(void)printf("x - %s\n", file);
|
|
|
|
cf.wfd = tfd;
|
|
cf.wname = file;
|
|
copy_ar(&cf, chdr.size);
|
|
|
|
if (fchmod(tfd, (short)chdr.mode)) {
|
|
warn("chmod: %s", file);
|
|
eval = 1;
|
|
}
|
|
if (options & AR_O) {
|
|
tv[0].tv_sec = tv[1].tv_sec = chdr.date;
|
|
if (utimes(file, tv)) {
|
|
warn("utimes: %s", file);
|
|
eval = 1;
|
|
}
|
|
}
|
|
(void)close(tfd);
|
|
if (!all && !*argv)
|
|
break;
|
|
}
|
|
close_archive(afd);
|
|
|
|
if (*argv) {
|
|
orphans(argv);
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|