[PATCH] mktemp: don't use mktemp() function

[Bartosz Golaszewski]

The linker emits this warning:

  warning: the use of `mktemp' is dangerous, better use `mkstemp' or `mkdtemp'

Fix it by using mkstemp() instead of mktemp().

function                                             old     new   delta
mktemp_main                                          214     233     +19
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 19/0)               Total: 19 bytes

Signed-off-by: Bartosz Golaszewski <bartekgola at gmail.com>
---
 debianutils/mktemp.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/debianutils/mktemp.c b/debianutils/mktemp.c
index 983d7a2..5ef557a 100644
--- a/debianutils/mktemp.c
+++ b/debianutils/mktemp.c
@@ -59,6 +59,8 @@ int mktemp_main(int argc UNUSED_PARAM, char **argv)
 	const char *path;
 	char *chp;
 	unsigned opts;
+	int fd;
+
 	enum {
 		OPT_d = 1 << 0,
 		OPT_q = 1 << 1,
@@ -93,8 +95,9 @@ int mktemp_main(int argc UNUSED_PARAM, char **argv)
 		chp = concat_path_file(path, chp);
 
 	if (opts & OPT_u) {
-		chp = mktemp(chp);
-		if (chp[0] == '\0')
+		close(fd = mkstemp(chp));
+		unlink(chp);
+		if (fd < 0)
 			goto error;
 	} else if (opts & OPT_d) {
 		if (mkdtemp(chp) == NULL)
-- 
2.1.3