Annotation of prex-old/usr/lib/libc/stdio/tempnam.c, Revision 1.1
1.1 ! nbrk 1: /*
! 2: * Copyright (c) 1988, 1993
! 3: * The Regents of the University of California. All rights reserved.
! 4: *
! 5: * Redistribution and use in source and binary forms, with or without
! 6: * modification, are permitted provided that the following conditions
! 7: * are met:
! 8: * 1. Redistributions of source code must retain the above copyright
! 9: * notice, this list of conditions and the following disclaimer.
! 10: * 2. Redistributions in binary form must reproduce the above copyright
! 11: * notice, this list of conditions and the following disclaimer in the
! 12: * documentation and/or other materials provided with the distribution.
! 13: * 3. Neither the name of the University nor the names of its contributors
! 14: * may be used to endorse or promote products derived from this software
! 15: * without specific prior written permission.
! 16: *
! 17: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 20: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 27: * SUCH DAMAGE.
! 28: */
! 29:
! 30: #include <sys/param.h>
! 31: #include <errno.h>
! 32: #include <stdio.h>
! 33: #include <stdlib.h>
! 34: #include <string.h>
! 35: #include <unistd.h>
! 36: #include <paths.h>
! 37:
! 38: char *
! 39: tempnam(dir, pfx)
! 40: const char *dir, *pfx;
! 41: {
! 42: int sverrno;
! 43: char *f, *name;
! 44:
! 45: if (!(name = malloc((size_t)MAXPATHLEN)))
! 46: return(NULL);
! 47:
! 48: if (!pfx)
! 49: pfx = "tmp.";
! 50:
! 51: if ((f = getenv("TMPDIR")) != NULL) {
! 52: (void)snprintf(name, (size_t)MAXPATHLEN, "%s%s%sXXXXXXXXXX", f,
! 53: *(f + strlen(f) - 1) == '/'? "": "/", pfx);
! 54: if ((f = mktemp(name)) != NULL)
! 55: return(f);
! 56: }
! 57:
! 58: if ((/* LINTED */f = (char *)dir) != NULL) {
! 59: (void)snprintf(name, (size_t)MAXPATHLEN, "%s%s%sXXXXXXXXXX", f,
! 60: *(f + strlen(f) - 1) == '/'? "": "/", pfx);
! 61: if ((f = mktemp(name)) != NULL)
! 62: return(f);
! 63: }
! 64:
! 65: f = P_tmpdir;
! 66: (void)snprintf(name, (size_t)MAXPATHLEN, "%s%sXXXXXXXXXX", f, pfx);
! 67: if ((f = mktemp(name)) != NULL)
! 68: return(f);
! 69:
! 70: f = _PATH_TMP;
! 71: (void)snprintf(name, (size_t)MAXPATHLEN, "%s%sXXXXXXXXXX", f, pfx);
! 72: if ((f = mktemp(name)) != NULL)
! 73: return(f);
! 74:
! 75: sverrno = errno;
! 76: free(name);
! 77: errno = sverrno;
! 78: return(NULL);
! 79: }
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