Move gitmkstemps to path.c

This function used to be only a compatibility function, but we're
going to extend it and actually use it, so make it part of Git.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 0 insertions, 70 deletions

diff --git a/compat/mkstemps.c b/compat/mkstemps.c
deleted file mode 100644
index 14179c8e6d..0000000000
--- a/compat/mkstemps.c
+++ /dev/null
@@ -1,70 +0,0 @@
-#include "../git-compat-util.h"
-
-/* Adapted from libiberty's mkstemp.c. */
-
-#undef TMP_MAX
-#define TMP_MAX 16384
-
-int gitmkstemps(char *pattern, int suffix_len)
-{
-	static const char letters[] =
-		"abcdefghijklmnopqrstuvwxyz"
-		"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-		"0123456789";
-	static const int num_letters = 62;
-	uint64_t value;
-	struct timeval tv;
-	char *template;
-	size_t len;
-	int fd, count;
-
-	len = strlen(pattern);
-
-	if (len < 6 + suffix_len) {
-		errno = EINVAL;
-		return -1;
-	}
-
-	if (strncmp(&pattern[len - 6 - suffix_len], "XXXXXX", 6)) {
-		errno = EINVAL;
-		return -1;
-	}
-
-	/*
-	 * Replace pattern's XXXXXX characters with randomness.
-	 * Try TMP_MAX different filenames.
-	 */
-	gettimeofday(&tv, NULL);
-	value = ((size_t)(tv.tv_usec << 16)) ^ tv.tv_sec ^ getpid();
-	template = &pattern[len - 6 - suffix_len];
-	for (count = 0; count < TMP_MAX; ++count) {
-		uint64_t v = value;
-		/* Fill in the random bits. */
-		template[0] = letters[v % num_letters]; v /= num_letters;
-		template[1] = letters[v % num_letters]; v /= num_letters;
-		template[2] = letters[v % num_letters]; v /= num_letters;
-		template[3] = letters[v % num_letters]; v /= num_letters;
-		template[4] = letters[v % num_letters]; v /= num_letters;
-		template[5] = letters[v % num_letters]; v /= num_letters;
-
-		fd = open(pattern, O_CREAT | O_EXCL | O_RDWR, 0600);
-		if (fd > 0)
-			return fd;
-		/*
-		 * Fatal error (EPERM, ENOSPC etc).
-		 * It doesn't make sense to loop.
-		 */
-		if (errno != EEXIST)
-			break;
-		/*
-		 * This is a random value.  It is only necessary that
-		 * the next TMP_MAX values generated by adding 7777 to
-		 * VALUE are different with (module 2^32).
-		 */
-		value += 7777;
-	}
-	/* We return the null string if we can't find a unique file name.  */
-	pattern[0] = '\0';
-	errno = EINVAL;
-	return -1;
-}