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298e71bb78
so that when ar has a problem (like trying to update a read-only archive), you get a message like: ar: xyzzy.a: Permission denined instead of: ar: xyzzy.a Which doesn't really give the user any indication that the operation really did fail. This closes PR# 170.
147 lines
3.6 KiB
C
147 lines
3.6 KiB
C
/*-
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* Copyright (c) 1990, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Hugh Smith at The University of Guelph.
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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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* 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. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char sccsid[] = "@(#)misc.c 8.3 (Berkeley) 4/2/94";
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#endif /* not lint */
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#include <sys/param.h>
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#include <dirent.h>
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#include <err.h>
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#include <errno.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "archive.h"
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#include "extern.h"
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#include "pathnames.h"
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char *tname = "temporary file"; /* temporary file "name" */
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int
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tmp()
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{
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extern char *envtmp;
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sigset_t set, oset;
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static int first;
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int fd;
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char path[MAXPATHLEN];
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if (!first && !envtmp) {
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envtmp = getenv("TMPDIR");
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first = 1;
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}
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if (envtmp)
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(void)sprintf(path, "%s/%s", envtmp, _NAME_ARTMP);
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else
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strcpy(path, _PATH_ARTMP);
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sigfillset(&set);
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(void)sigprocmask(SIG_BLOCK, &set, &oset);
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if ((fd = mkstemp(path)) == -1)
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error(tname);
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(void)unlink(path);
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(void)sigprocmask(SIG_SETMASK, &oset, NULL);
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return (fd);
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}
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/*
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* files --
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* See if the current file matches any file in the argument list; if it
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* does, remove it from the argument list.
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*/
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char *
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files(argv)
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char **argv;
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{
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char **list, *p;
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for (list = argv; *list; ++list)
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if (compare(*list)) {
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p = *list;
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for (; list[0] = list[1]; ++list)
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continue;
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return (p);
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}
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return (NULL);
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}
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void
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orphans(argv)
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char **argv;
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{
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for (; *argv; ++argv)
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warnx("%s: not found in archive", *argv);
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}
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char *
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rname(path)
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char *path;
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{
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char *ind;
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return ((ind = strrchr(path, '/')) ? ind + 1 : path);
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}
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int
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compare(dest)
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char *dest;
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{
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int maxname = (options & AR_TR) ? OLDARMAXNAME : MAXNAMLEN;
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return (!strncmp(chdr.name, rname(dest), maxname));
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}
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void
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badfmt()
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{
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errx(1, "%s: %s", archive, strerror(EFTYPE));
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}
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void
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error(name)
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char *name;
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{
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err(1, "%s", name);
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}
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