diff options
Diffstat (limited to 'sysdeps/posix/tempname.c')
| -rw-r--r-- | sysdeps/posix/tempname.c | 124 |
1 files changed, 105 insertions, 19 deletions
diff --git a/sysdeps/posix/tempname.c b/sysdeps/posix/tempname.c index 0d7af8f9c3..ae22f10df9 100644 --- a/sysdeps/posix/tempname.c +++ b/sysdeps/posix/tempname.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1991-1999, 2000 Free Software Foundation, Inc. +/* Copyright (C) 1991-1999, 2000, 2001 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -16,24 +16,102 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#include <stddef.h> -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <errno.h> +#if HAVE_CONFIG_H +# include <config.h> +#endif + #include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> -#include <unistd.h> -#include <sys/time.h> #include <assert.h> +#include <errno.h> +#ifndef __set_errno +# define __set_errno(Val) errno = (Val) +#endif + +#include <stdio.h> +#ifndef P_tmpdir +# define P_tmpdir "/tmp" +#endif +#ifndef TMP_MAX +# define TMP_MAX 238328 +#endif +#ifndef __GT_FILE +# define __GT_FILE 0 +# define __GT_BIGFILE 1 +# define __GT_DIR 2 +# define __GT_NOCREATE 3 +#endif + +#if STDC_HEADERS || _LIBC +# include <stddef.h> +# include <stdlib.h> +# include <string.h> +#endif + +#if HAVE_FCNTL_H || _LIBC +# include <fcntl.h> +#endif + +#if HAVE_SYS_TIME_H || _LIBC +# include <sys/time.h> +#endif + +#if HAVE_STDINT_H || _LIBC +# include <stdint.h> +#endif + +#if HAVE_UNISTD_H || _LIBC +# include <unistd.h> +#endif + +#include <sys/stat.h> +#if STAT_MACROS_BROKEN +# undef S_ISDIR +#endif +#if !defined S_ISDIR && defined S_IFDIR +# define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR) +#endif +#if !S_IRUSR && S_IREAD +# define S_IRUSR S_IREAD +#endif +#if !S_IRUSR +# define S_IRUSR 00400 +#endif +#if !S_IWUSR && S_IWRITE +# define S_IWUSR S_IWRITE +#endif +#if !S_IWUSR +# define S_IWUSR 00200 +#endif +#if !S_IXUSR && S_IEXEC +# define S_IXUSR S_IEXEC +#endif +#if !S_IXUSR +# define S_IXUSR 00100 +#endif + +#if _LIBC +# define struct_stat64 struct stat64 +#else +# define struct_stat64 struct stat +# define __getpid getpid +# define __gettimeofday gettimeofday +# define __mkdir mkdir +# define __open open +# define __open64 open +# define __lxstat64(version, path, buf) lstat (path, buf) +# define __xstat64(version, path, buf) stat (path, buf) +#endif + +#if ! (HAVE___SECURE_GETENV || _LIBC) +# define __secure_getenv getenv +#endif + /* Return nonzero if DIR is an existent directory. */ static int direxists (const char *dir) { - struct stat64 buf; + struct_stat64 buf; return __xstat64 (_STAT_VER, dir, &buf) == 0 && S_ISDIR (buf.st_mode); } @@ -124,10 +202,10 @@ __gen_tempname (char *tmpl, int kind) int len; char *XXXXXX; static uint64_t value; - struct timeval tv; + uint64_t random_time_bits; int count, fd = -1; int save_errno = errno; - struct stat64 st; + struct_stat64 st; len = strlen (tmpl); if (len < 6 || strcmp (&tmpl[len - 6], "XXXXXX")) @@ -140,8 +218,16 @@ __gen_tempname (char *tmpl, int kind) XXXXXX = &tmpl[len - 6]; /* Get some more or less random data. */ - __gettimeofday (&tv, NULL); - value += ((uint64_t) tv.tv_usec << 16) ^ tv.tv_sec ^ __getpid (); +#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 + value += random_time_bits ^ __getpid (); for (count = 0; count < TMP_MAX; value += 7777, ++count) { @@ -163,15 +249,15 @@ __gen_tempname (char *tmpl, int kind) switch (kind) { case __GT_FILE: - fd = __open (tmpl, O_RDWR | O_CREAT | O_EXCL, 0600); + fd = __open (tmpl, O_RDWR | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR); break; case __GT_BIGFILE: - fd = __open64 (tmpl, O_RDWR | O_CREAT | O_EXCL, 0600); + fd = __open64 (tmpl, O_RDWR | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR); break; case __GT_DIR: - fd = __mkdir (tmpl, 0700); + fd = __mkdir (tmpl, S_IRUSR | S_IWUSR | S_IXUSR); break; case __GT_NOCREATE: |