X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Ftempname.c;h=410213447c1e35a3a4fb600885f83f35768bf3f5;hb=0aa929caab127f13327b070132fff8a22d19bc75;hp=038b688ddac9af3ebfa3259b62c09b569c948146;hpb=82ff49b55425e14156a89f4d2ab4267409665f54;p=gnulib.git
diff --git a/lib/tempname.c b/lib/tempname.c
index 038b688dd..410213447 100644
--- a/lib/tempname.c
+++ b/lib/tempname.c
@@ -1,24 +1,27 @@
/* 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, 2009 Free Software Foundation,
+ Inc.
- This program is free software; you can redistribute it and/or modify
+ 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
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation,
- Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see . */
-#ifdef HAVE_CONFIG_H
+/* Extracted from glibc sysdeps/posix/tempname.c. See also tmpdir.c. */
+
+#if !_LIBC
# include
+# include "tempname.h"
#endif
#include
@@ -37,8 +40,7 @@
# define TMP_MAX 238328
#endif
#ifndef __GT_FILE
-# define __GT_FILE 0
-# define __GT_BIGFILE 1
+# define __GT_FILE 1
# define __GT_DIR 2
# define __GT_NOCREATE 3
#endif
@@ -48,11 +50,7 @@
#include
#include
-
-#if HAVE_SYS_TIME_H || _LIBC
-# include
-#endif
-
+#include
#include
#include
@@ -60,13 +58,10 @@
#if _LIBC
# define struct_stat64 struct stat64
-# 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 __open open
+# define __gen_tempname gen_tempname
# define __getpid getpid
# define __gettimeofday gettimeofday
# define __mkdir mkdir
@@ -106,6 +101,7 @@
# define uint64_t uintmax_t
#endif
+#if _LIBC
/* Return nonzero if DIR is an existent directory. */
static int
direxists (const char *dir)
@@ -176,6 +172,7 @@ __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[] =
@@ -191,12 +188,11 @@ static const char letters[] =
at the time of the call.
__GT_FILE: create the file using open(O_CREAT|O_EXCL)
and return a read-write fd. The file is mode 0600.
- __GT_BIGFILE: same as __GT_FILE but use open64().
__GT_DIR: create a directory, which will be mode 0700.
We use a clever algorithm to get hard-to-predict names. */
int
-__gen_tempname (char *tmpl, int kind)
+__gen_tempname (char *tmpl, int flags, int kind)
{
int len;
char *XXXXXX;
@@ -213,11 +209,15 @@ __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 +233,11 @@ __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 ();
@@ -265,11 +261,9 @@ __gen_tempname (char *tmpl, int kind)
switch (kind)
{
case __GT_FILE:
- fd = small_open (tmpl, O_RDWR | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR);
- break;
-
- case __GT_BIGFILE:
- fd = large_open (tmpl, O_RDWR | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR);
+ fd = __open (tmpl,
+ (flags & ~0777) | O_RDWR | O_CREAT | O_EXCL,
+ S_IRUSR | S_IWUSR);
break;
case __GT_DIR: