X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Ftempname.c;h=e213600e3f2b33ea851e1d2bc418cb9646ce1bf4;hb=dd6ceef65e424d30db8706273f88c20b015012ce;hp=a25beb2059a10b329eedf6bf9460d404ec4004e9;hpb=20a2d46057d80547364c06ae27c07b96f74016ff;p=gnulib.git diff --git a/lib/tempname.c b/lib/tempname.c index a25beb205..e213600e3 100644 --- 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 +# include "tempname.h" #endif #include @@ -48,18 +52,8 @@ #include #include - -#if HAVE_SYS_TIME_H || _LIBC -# include -#endif - -#if HAVE_STDINT_H || _LIBC -# include -#endif -#if HAVE_INTTYPES_H -# include -#endif - +#include +#include #include #include @@ -69,10 +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 @@ -112,6 +106,7 @@ # define uint64_t uintmax_t #endif +#if _LIBC /* Return nonzero if DIR is an existent directory. */ static int direxists (const char *dir) @@ -182,6 +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[] = @@ -219,11 +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")) @@ -239,15 +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 ();