-/* Copyright (C) 1991, 1992, 1996, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
This file is derived from mkstemp.c from the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
+ Boston, MA 02110-1301, USA. */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
+#elif HAVE_TIME_H
+#include <time.h>
#endif
#include "ansidecl.h"
#define TMP_MAX 16384
#endif
-/* Generate a unique temporary file name from TEMPLATE.
+#ifndef O_BINARY
+# define O_BINARY 0
+#endif
+
+/*
+
+@deftypefn Replacement int mkstemps (char *@var{pattern}, int @var{suffix_len})
- TEMPLATE has the form:
+Generate a unique temporary file name from @var{pattern}.
+@var{pattern} has the form:
- <path>/ccXXXXXX<suffix>
+@example
+ @var{path}/ccXXXXXX@var{suffix}
+@end example
- SUFFIX_LEN tells us how long <suffix> is (it can be zero length).
+@var{suffix_len} tells us how long @var{suffix} is (it can be zero
+length). The last six characters of @var{pattern} before @var{suffix}
+must be @samp{XXXXXX}; they are replaced with a string that makes the
+filename unique. Returns a file descriptor open on the file for
+reading and writing.
- The last six characters of TEMPLATE before <suffix> must be "XXXXXX";
- they are replaced with a string that makes the filename unique.
+@end deftypefn
+
+*/
- Returns a file descriptor open on the file for reading and writing. */
int
-mkstemps (template, suffix_len)
- char *template;
- int suffix_len;
+mkstemps (char *pattern, int suffix_len)
{
static const char letters[]
= "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
size_t len;
int count;
- len = strlen (template);
+ len = strlen (pattern);
if ((int) len < 6 + suffix_len
- || strncmp (&template[len - 6 - suffix_len], "XXXXXX", 6))
+ || strncmp (&pattern[len - 6 - suffix_len], "XXXXXX", 6))
{
return -1;
}
- XXXXXX = &template[len - 6 - suffix_len];
+ XXXXXX = &pattern[len - 6 - suffix_len];
#ifdef HAVE_GETTIMEOFDAY
/* Get some more or less random data. */
v /= 62;
XXXXXX[5] = letters[v % 62];
- fd = open (template, O_RDWR|O_CREAT|O_EXCL, 0600);
+ fd = open (pattern, O_BINARY|O_RDWR|O_CREAT|O_EXCL, 0600);
if (fd >= 0)
/* The file does not exist. */
return fd;
+ if (errno != EEXIST
+#ifdef EISDIR
+ && errno != EISDIR
+#endif
+ )
+ /* Fatal error (EPERM, ENOSPC etc). Doesn't make sense to loop. */
+ break;
/* This is a random value. It is only necessary that the next
TMP_MAX values generated by adding 7777 to VALUE are different
}
/* We return the null string if we can't find a unique file name. */
- template[0] = '\0';
+ pattern[0] = '\0';
return -1;
}