wrapper: add git_mkdtemp()

Extend git_mkstemps_mode() to optionally call mkdir(2) instead of
open(2), then use that ability to create a mkdtemp(3) replacement,
git_mkdtemp().  We'll start using it in the next commit.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/wrapper.h b/wrapper.h
index 44a8597ac3..15ac3bab6e 100644
--- a/wrapper.h
+++ b/wrapper.h
@@ -37,6 +37,8 @@ int xsnprintf(char *dst, size_t max, const char *fmt, ...);
 
 int xgethostname(char *buf, size_t len);
 
+char *git_mkdtemp(char *pattern);
+
 /* set default permissions by passing mode arguments to open(2) */
 int git_mkstemps_mode(char *pattern, int suffix_len, int mode);
 int git_mkstemp_mode(char *pattern, int mode);