major improvements to temp file name generator

[musl] / src / temp / mkdtemp.c

diff --git a/src/temp/mkdtemp.c b/src/temp/mkdtemp.c
index cb030ee..f2ecc51 100644 (file)
--- a/src/temp/mkdtemp.c
+++ b/src/temp/mkdtemp.c
@@ -1,4 +1,3 @@
-#define _GNU_SOURCE
 #include <string.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -9,14 +8,18 @@
 #include <sys/stat.h>
 #include "libc.h"
 
+char *__mktemp(char *);
+
 char *mkdtemp(char *template)
 {
-       for (;;) {
-               if (!mktemp(template)) return 0;
+       int retries = 100;
+       while (retries--) {
+               if (!__mktemp(template)) return 0;
                if (!mkdir(template, 0700)) return template;
                if (errno != EEXIST) return 0;
                /* this is safe because mktemp verified
                 * that we have a valid template string */
                strcpy(template+strlen(template)-6, "XXXXXX");
        }
+       return 0;
 }