exit.h is replaced with stdlib.h.

[gnulib.git] / lib / tempname.c

diff --git a/lib/tempname.c b/lib/tempname.c
index 038b688..e213600 100644 (file)
--- a/lib/tempname.c
+++ b/lib/tempname.c
@@ -1,7 +1,8 @@
 /* tempname.c - generate the name of a temporary file.
 
    Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-   2000, 2001, 2002, 2003, 2005, 2006 Free Software Foundation, Inc.
+   2000, 2001, 2002, 2003, 2005, 2006, 2007 Free Software Foundation,
+   Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -17,8 +18,11 @@
    with this program; if not, write to the Free Software Foundation,
    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
-#ifdef HAVE_CONFIG_H
+/* Extracted from glibc sysdeps/posix/tempname.c.  See also tmpdir.c.  */
+
+#if !_LIBC
 # include <config.h>
+# include "tempname.h"
 #endif
 
 #include <sys/types.h>
@@ -48,11 +52,7 @@
 #include <string.h>
 
 #include <fcntl.h>
-
-#if HAVE_SYS_TIME_H || _LIBC
-# include <sys/time.h>
-#endif
-
+#include <sys/time.h>
 #include <stdint.h>
 #include <unistd.h>
 
@@ -63,10 +63,10 @@
 # define small_open __open
 # define large_open __open64
 #else
-# include "stat-macros.h"
 # define struct_stat64 struct stat
 # define small_open open
 # define large_open open
+# define __gen_tempname gen_tempname
 # define __getpid getpid
 # define __gettimeofday gettimeofday
 # define __mkdir mkdir
@@ -106,6 +106,7 @@
 # define uint64_t uintmax_t
 #endif
 
+#if _LIBC
 /* Return nonzero if DIR is an existent directory.  */
 static int
 direxists (const char *dir)
@@ -176,6 +177,7 @@ __path_search (char *tmpl, size_t tmpl_len, const char *dir, const char *pfx,
   sprintf (tmpl, "%.*s/%.*sXXXXXX", (int) dlen, dir, (int) plen, pfx);
   return 0;
 }
+#endif /* _LIBC */
 
 /* These are the characters used in temporary file names.  */
 static const char letters[] =
@@ -213,11 +215,15 @@ __gen_tempname (char *tmpl, int kind)
      necessary to try all these combinations.  Instead if a reasonable
      number of names is tried (we define reasonable as 62**3) fail to
      give the system administrator the chance to remove the problems.  */
-  unsigned int attempts_min = 62 * 62 * 62;
+#define ATTEMPTS_MIN (62 * 62 * 62)
 
   /* The number of times to attempt to generate a temporary file.  To
      conform to POSIX, this must be no smaller than TMP_MAX.  */
-  unsigned int attempts = attempts_min < TMP_MAX ? TMP_MAX : attempts_min;
+#if ATTEMPTS_MIN < TMP_MAX
+  unsigned int attempts = TMP_MAX;
+#else
+  unsigned int attempts = ATTEMPTS_MIN;
+#endif
 
   len = strlen (tmpl);
   if (len < 6 || strcmp (&tmpl[len - 6], "XXXXXX"))
@@ -233,15 +239,11 @@ __gen_tempname (char *tmpl, int kind)
 #ifdef RANDOM_BITS
   RANDOM_BITS (random_time_bits);
 #else
-# if HAVE_GETTIMEOFDAY || _LIBC
   {
     struct timeval tv;
     __gettimeofday (&tv, NULL);
     random_time_bits = ((uint64_t) tv.tv_usec << 16) ^ tv.tv_sec;
   }
-# else
-  random_time_bits = time (NULL);
-# endif
 #endif
   value += random_time_bits ^ __getpid ();