compiler/posixc/tmpnam.c

   1 /*-
   2  * Copyright (c) 1990, 1993, 1994
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * Chris Torek.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by the University of
  19  *      California, Berkeley and its contributors.
  20  * 4. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  */
  36
  37 #if defined(LIBC_SCCS) && !defined(lint)
  38 static char sccsid[] = "@(#)tmpnam.c    8.3 (Berkeley) 3/28/94";
  39 #endif /* LIBC_SCCS and not lint */
  40
  41 #include <sys/types.h>
  42
  43 #include <stdio.h>
  44 #include <unistd.h>
  45
  46 #ifdef __AROS__
  47 #   include <stdlib.h>
  48 #   define _mktemp mktemp
  49 #else
  50 __warn_references(tmpnam,
  51     "warning: tmpnam() possibly used unsafely; consider using mkstemp()");
  52
  53 extern char *_mktemp(char *);
  54 #endif
  55
  56 /*****************************************************************************
  57
  58     NAME */
  59
  60         char *tmpnam(
  61
  62 /*  SYNOPSIS */
  63         char *s)
  64
  65 /*  FUNCTION
  66
  67     INPUTS
  68
  69     RESULT
  70
  71     NOTES
  72
  73     EXAMPLE
  74
  75     BUGS
  76
  77     SEE ALSO
  78
  79     INTERNALS
  80
  81 ******************************************************************************/
  82 {
  83         static unsigned int tmpcount;
  84         static char buf[L_tmpnam];
  85
  86         if (s == NULL)
  87                 s = buf;
  88         (void)snprintf(s, L_tmpnam, "%stmp.%u.XXXXXX", P_tmpdir, tmpcount);
  89         ++tmpcount;
  90         return (_mktemp(s));
  91 }