From: 宋冬生 <songdongsh...@live.cn>
---
mingw-w64-crt/Makefile.am | 2 +-
mingw-w64-crt/misc/mkstemp.c | 91 ++++++++++++++++++++++++++++++++++++++++++
mingw-w64-headers/crt/stdlib.h | 1 +
3 files changed, 93 insertions(+), 1 deletion(-)
create mode 100644 mingw-w64-crt/misc/mkstemp.c
diff --git a/mingw-w64-crt/Makefile.am b/mingw-w64-crt/Makefile.am
index b0ac2f2..3348ea2 100644
--- a/mingw-w64-crt/Makefile.am
+++ b/mingw-w64-crt/Makefile.am
@@ -263,7 +263,7 @@ src_libmingwex=\
misc/gettimeofday.c misc/imaxabs.c misc/imaxdiv.c
misc/isblank.c misc/iswblank.c \
misc/mbrtowc.c misc/mbsinit.c misc/mempcpy.c
misc/mingw-aligned-malloc.c misc/mingw-fseek.c \
misc/mingw_matherr.c misc/mingw_mbwc_convert.c misc/mingw_usleep.c
misc/mingw_wcstod.c misc/mingw_wcstof.c \
- misc/mingw_wcstold.c misc/seterrno.c misc/sleep.c
misc/spawnv.c \
+ misc/mingw_wcstold.c misc/mkstemp.c misc/seterrno.c
misc/sleep.c misc/spawnv.c \
misc/spawnve.c misc/spawnvp.c misc/spawnvpe.c
misc/strnlen.c misc/strsafe.c \
misc/strtoimax.c misc/strtold.c misc/strtoumax.c
misc/tdelete.c misc/tfind.c \
misc/tsearch.c misc/twalk.c misc/uchar_c16rtomb.c
misc/uchar_c32rtomb.c misc/uchar_mbrtoc16.c \
diff --git a/mingw-w64-crt/misc/mkstemp.c b/mingw-w64-crt/misc/mkstemp.c
new file mode 100644
index 0000000..081b512
--- /dev/null
+++ b/mingw-w64-crt/misc/mkstemp.c
@@ -0,0 +1,91 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <io.h>
+#include <errno.h>
+#include <share.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+
+/*
+ The mkstemp() function generates a unique temporary filename from template,
+ creates and opens the file, and returns an open file descriptor for the
+ file.
+
+ The template may be any file name with at least six trailing Xs, for
example
+ /tmp/temp.XXXXXXXX. The trailing Xs are replaced with a unique digit and
+ letter combination that makes the file name unique. Since it will be
+ modified, template must not be a string constant, but should be declared as
+ a character array.
+
+ The file is created with permissions 0600, that is, read plus write for
+ owner only. The returned file descriptor provides both read and write
access
+ to the file.
+ */
+int __cdecl mkstemp (char *template_name)
+{
+ errno_t ec;
+ int i, j, fd, len, index;
+
+ /* These are the (62) characters used in temporary filenames. */
+ static const char letters[] =
"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+
+ /* The last six characters of template must be "XXXXXX" */
+ if (template_name == NULL || (len = strlen (template_name)) < 6
+ || memcmp (template_name + (len - 6), "XXXXXX", 6)) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ /* User may supply more than six trailing Xs */
+ for (index = len - 6; index > 0 && template_name[index - 1] == 'X';
index--);
+
+ /*
+ Like OpenBSD, mkstemp() will try at least 2 ** 31 combinations before
+ giving up.
+ */
+ for (i = 0; i >= 0; i++) {
+ for(j = index; j < len; j++) {
+ template_name[j] = letters[rand () % 62];
+ }
+
+ ec = _sopen_s (&fd, template_name,
+ _O_RDWR | _O_CREAT | _O_EXCL | _O_TEMPORARY | _O_BINARY,
+ SH_DENYRW, _S_IREAD | _S_IWRITE);
+ if (ec == 0) return fd;
+ if (ec != EEXIST) return -1;
+ }
+
+ return -1;
+}
+
+#if 0
+int main (int argc, char *argv[])
+{
+ int i, fd;
+
+ for (i = 0; i < 10; i++) {
+ char template_name[] = { "temp_XXXXXX" };
+ fd = mkstemp (template_name);
+ if (fd >= 0) {
+ fprintf (stderr, "fd=%d, name=%s\n", fd, template_name);
+ _close (fd);
+ } else {
+ fprintf (stderr, "errno=%d\n", errno);
+ }
+ }
+
+ for (i = 0; i < 10; i++) {
+ char template_name[] = { "temp_XXXXXXXX" };
+ fd = mkstemp (template_name);
+ if (fd >= 0) {
+ fprintf (stderr, "fd=%d, name=%s\n", fd, template_name);
+ _close (fd);
+ } else {
+ fprintf (stderr, "errno=%d\n", errno);
+ }
+ }
+
+ return 0;
+}
+#endif
diff --git a/mingw-w64-headers/crt/stdlib.h b/mingw-w64-headers/crt/stdlib.h
index 7743452..fe44195 100644
--- a/mingw-w64-headers/crt/stdlib.h
+++ b/mingw-w64-headers/crt/stdlib.h
@@ -378,6 +378,7 @@ extern "C" {
_CRTIMP int __cdecl _mbtowc_l(wchar_t * __restrict__ _DstCh,const char *
__restrict__ _SrcCh,size_t _SrcSizeInBytes,_locale_t _Locale);
size_t __cdecl mbstowcs(wchar_t * __restrict__ _Dest,const char *
__restrict__ _Source,size_t _MaxCount);
_CRTIMP size_t __cdecl _mbstowcs_l(wchar_t * __restrict__ _Dest,const char *
__restrict__ _Source,size_t _MaxCount,_locale_t _Locale);
+ int __cdecl mkstemp(char *template);
int __cdecl rand(void);
_CRTIMP int __cdecl _set_error_mode(int _Mode);
void __cdecl srand(unsigned int _Seed);
--
2.1.3
------------------------------------------------------------------------------
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