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Annotation of src/usr.bin/ar/misc.c, Revision 1.5

1.5     ! millert     1: /*     $OpenBSD: misc.c,v 1.4 1999/08/26 09:04:00 fgsch Exp $  */
1.1       deraadt     2: /*     $NetBSD: misc.c,v 1.6 1995/03/26 03:27:55 glass Exp $   */
                      3:
                      4: /*-
                      5:  * Copyright (c) 1990, 1993, 1994
                      6:  *     The Regents of the University of California.  All rights reserved.
                      7:  *
                      8:  * This code is derived from software contributed to Berkeley by
                      9:  * Hugh Smith at The University of Guelph.
                     10:  *
                     11:  * Redistribution and use in source and binary forms, with or without
                     12:  * modification, are permitted provided that the following conditions
                     13:  * are met:
                     14:  * 1. Redistributions of source code must retain the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer.
                     16:  * 2. Redistributions in binary form must reproduce the above copyright
                     17:  *    notice, this list of conditions and the following disclaimer in the
                     18:  *    documentation and/or other materials provided with the distribution.
1.5     ! millert    19:  * 3. Neither the name of the University nor the names of its contributors
1.1       deraadt    20:  *    may be used to endorse or promote products derived from this software
                     21:  *    without specific prior written permission.
                     22:  *
                     23:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     24:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     25:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     26:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     27:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     28:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     29:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     30:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     31:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     32:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     33:  * SUCH DAMAGE.
                     34:  */
                     35:
                     36: #ifndef lint
                     37: #if 0
                     38: static char sccsid[] = "@(#)misc.c     8.3 (Berkeley) 4/2/94";
                     39: #else
1.5     ! millert    40: static char rcsid[] = "$OpenBSD: misc.c,v 1.4 1999/08/26 09:04:00 fgsch Exp $";
1.1       deraadt    41: #endif
                     42: #endif /* not lint */
                     43:
                     44: #include <sys/param.h>
                     45:
                     46: #include <dirent.h>
                     47: #include <err.h>
                     48: #include <errno.h>
                     49: #include <signal.h>
                     50: #include <stdio.h>
                     51: #include <stdlib.h>
                     52: #include <string.h>
                     53: #include <unistd.h>
                     54:
                     55: #include "archive.h"
                     56: #include "extern.h"
                     57: #include "pathnames.h"
                     58:
                     59: char *tname = "temporary file";                /* temporary file "name" */
                     60:
                     61: int
                     62: tmp()
                     63: {
                     64:        extern char *envtmp;
                     65:        sigset_t set, oset;
                     66:        static int first;
                     67:        int fd;
                     68:        char path[MAXPATHLEN];
                     69:
                     70:        if (!first && !envtmp) {
                     71:                envtmp = getenv("TMPDIR");
                     72:                first = 1;
                     73:        }
                     74:
                     75:        if (envtmp)
1.4       fgsch      76:                (void)snprintf(path, sizeof(path), "%s/%s", envtmp,
                     77:                    _NAME_ARTMP);
1.1       deraadt    78:        else
1.4       fgsch      79:                strlcpy(path, _PATH_ARTMP, sizeof(path));
1.1       deraadt    80:
                     81:        sigfillset(&set);
                     82:        (void)sigprocmask(SIG_BLOCK, &set, &oset);
                     83:        if ((fd = mkstemp(path)) == -1)
                     84:                error(tname);
                     85:         (void)unlink(path);
                     86:        (void)sigprocmask(SIG_SETMASK, &oset, NULL);
                     87:        return (fd);
                     88: }
                     89:
                     90: /*
                     91:  * files --
                     92:  *     See if the current file matches any file in the argument list; if it
                     93:  *     does, remove it from the argument list.
                     94:  */
                     95: char *
                     96: files(argv)
                     97:        char **argv;
                     98: {
                     99:        char **list, *p;
                    100:
                    101:        for (list = argv; *list; ++list)
                    102:                if (compare(*list)) {
                    103:                        p = *list;
1.3       deraadt   104:                        for (; (list[0] = list[1]); ++list)
1.1       deraadt   105:                                continue;
                    106:                        return (p);
                    107:                }
                    108:        return (NULL);
                    109: }
                    110:
                    111: void
                    112: orphans(argv)
                    113:        char **argv;
                    114: {
                    115:
                    116:        for (; *argv; ++argv)
                    117:                warnx("%s: not found in archive", *argv);
                    118: }
                    119:
                    120: char *
                    121: rname(path)
                    122:        char *path;
                    123: {
                    124:        char *ind;
                    125:
                    126:        return ((ind = strrchr(path, '/')) ? ind + 1 : path);
                    127: }
                    128:
                    129: int
                    130: compare(dest)
                    131:        char *dest;
                    132: {
                    133:
                    134:        if (options & AR_TR)
                    135:                return (!strncmp(chdr.name, rname(dest), OLDARMAXNAME));
                    136:        return (!strcmp(chdr.name, rname(dest)));
                    137: }
                    138:
                    139: void
                    140: badfmt()
                    141: {
                    142:
                    143:        errno = EFTYPE;
                    144:        err(1, "%s", archive);
                    145: }
                    146:
                    147: void
                    148: error(name)
                    149:        char *name;
                    150: {
                    151:
                    152:        err(1, "%s", name);
                    153: }