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Annotation of src/usr.bin/ranlib/misc.c, Revision 1.11

1.11    ! deraadt     1: /*     $OpenBSD: misc.c,v 1.10 2008/01/04 16:44:10 miod Exp $  */
1.2       deraadt     2:
1.1       deraadt     3: /*-
                      4:  * Copyright (c) 1990 The Regents of the University of California.
                      5:  * All rights reserved.
                      6:  *
                      7:  * This code is derived from software contributed to Berkeley by
                      8:  * Hugh Smith at The University of Guelph.
                      9:  *
                     10:  * Redistribution and use in source and binary forms, with or without
                     11:  * modification, are permitted provided that the following conditions
                     12:  * are met:
                     13:  * 1. Redistributions of source code must retain the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer.
                     15:  * 2. Redistributions in binary form must reproduce the above copyright
                     16:  *    notice, this list of conditions and the following disclaimer in the
                     17:  *    documentation and/or other materials provided with the distribution.
1.7       millert    18:  * 3. Neither the name of the University nor the names of its contributors
1.1       deraadt    19:  *    may be used to endorse or promote products derived from this software
                     20:  *    without specific prior written permission.
                     21:  *
                     22:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     23:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     24:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     25:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     26:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     27:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     28:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     29:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     30:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     31:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     32:  * SUCH DAMAGE.
                     33:  */
                     34:
                     35: #include <sys/param.h>
                     36: #include <signal.h>
                     37: #include <errno.h>
                     38: #include <unistd.h>
                     39: #include <stdio.h>
                     40: #include <stdlib.h>
                     41: #include <string.h>
                     42: #include "pathnames.h"
1.5       espie      43: #include "extern.h"
1.1       deraadt    44:
1.5       espie      45: char *tname = "temporary file";
1.1       deraadt    46:
1.5       espie      47: int
1.8       deraadt    48: tmp(void)
1.1       deraadt    49: {
                     50:        static char *envtmp;
                     51:        sigset_t set, oset;
                     52:        static int first;
                     53:        int fd;
                     54:        char path[MAXPATHLEN];
                     55:
                     56:        if (!first) {
                     57:                envtmp = getenv("TMPDIR");
                     58:                first = 1;
                     59:        }
                     60:
                     61:        if (envtmp)
1.4       fgsch      62:                (void)snprintf(path, sizeof(path), "%s/%s", envtmp,
                     63:                    _NAME_RANTMP);
1.1       deraadt    64:        else
1.4       fgsch      65:                strlcpy(path, _PATH_RANTMP, sizeof(path));
1.1       deraadt    66:
                     67:        sigemptyset(&set);
                     68:        sigaddset(&set, SIGHUP);
                     69:        sigaddset(&set, SIGINT);
                     70:        sigaddset(&set, SIGQUIT);
                     71:        sigaddset(&set, SIGTERM);
                     72:        (void)sigprocmask(SIG_BLOCK, &set, &oset);
                     73:        if ((fd = mkstemp(path)) == -1)
                     74:                error(tname);
1.5       espie      75:        (void)unlink(path);
1.1       deraadt    76:        (void)sigprocmask(SIG_SETMASK, &oset, (sigset_t *)NULL);
                     77:        return(fd);
                     78: }
                     79:
                     80: void *
1.8       deraadt    81: emalloc(size_t len)
1.1       deraadt    82: {
1.5       espie      83:        void *p;
1.1       deraadt    84:
1.5       espie      85:        if (!(p = malloc(len)))
1.1       deraadt    86:                error(archive);
                     87:        return(p);
                     88: }
                     89:
1.10      miod       90: const char *
                     91: rname(const char *path)
                     92: {
                     93:        const char *ind;
                     94:
                     95:        return((ind = strrchr(path, '/')) ? ind + 1 : path);
                     96: }
                     97:
1.5       espie      98: void
1.8       deraadt    99: badfmt(void)
1.1       deraadt   100: {
                    101:        errno = EFTYPE;
                    102:        error(archive);
                    103: }
                    104:
1.5       espie     105: void
1.8       deraadt   106: error(const char *name)
1.1       deraadt   107: {
1.5       espie     108:
                    109:        err(1, "%s", name);
1.1       deraadt   110: }