xref: /csrg-svn/usr.bin/ar/misc.c (revision 68966)

/*-
 * 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.
 *
 * %sccs.include.redist.c%
 */

#ifndef lint
static char sccsid[] = "@(#)misc.c	8.4 (Berkeley) 04/27/95";
#endif /* not lint */

#include <sys/param.h>

#include <dirent.h>
#include <err.h>
#include <errno.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "archive.h"
#include "extern.h"
#include "pathnames.h"

char *tname = "temporary file";		/* temporary file "name" */

int
tmp()
{
	extern char *envtmp;
	sigset_t set, oset;
	static int first;
	int fd;
	char path[MAXPATHLEN];

	if (!first && !envtmp) {
		envtmp = getenv("TMPDIR");
		first = 1;
	}

	if (envtmp)
		(void)sprintf(path, "%s/%s", envtmp, _NAME_ARTMP);
	else
		strcpy(path, _PATH_ARTMP);

	sigfillset(&set);
	(void)sigprocmask(SIG_BLOCK, &set, &oset);
	if ((fd = mkstemp(path)) == -1)
		error(tname);
        (void)unlink(path);
	(void)sigprocmask(SIG_SETMASK, &oset, NULL);
	return (fd);
}

/*
 * files --
 *	See if the current file matches any file in the argument list; if it
 * 	does, remove it from the argument list.
 */
char *
files(argv)
	char **argv;
{
	char **list, *p;

	for (list = argv; *list; ++list)
		if (compare(*list)) {
			p = *list;
			for (; list[0] = list[1]; ++list)
				continue;
			return (p);
		}
	return (NULL);
}

void
orphans(argv)
	char **argv;
{

	for (; *argv; ++argv)
		warnx("%s: not found in archive", *argv);
}

char *
rname(path)
	char *path;
{
	char *ind;

	return ((ind = strrchr(path, '/')) ? ind + 1 : path);
}

int
compare(dest)
	char *dest;
{

	if (options & AR_TR)
		return (!strncmp(chdr.name, rname(dest), OLDARMAXNAME));
	return (!strcmp(chdr.name, rname(dest)));
}

void
badfmt()
{

	errno = EFTYPE;
	err(1, "%s", archive);
}

void
error(name)
	char *name;
{

	err(1, "%s", name);
}