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authorRich Felker <dalias@aerifal.cx>2011-03-29 08:37:57 -0400
committerRich Felker <dalias@aerifal.cx>2011-03-29 08:37:57 -0400
commita88edbec15abe3c8e08d5065d8bea399898e757c (patch)
tree03fffdfb13788c61fbaaa942e478ec4b6653b649
parent507a9fa6ff9948eb7d858467b7be2cb1dcf15d03 (diff)
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make tmpfile fail after exceeding max tries.
-rw-r--r--src/stdio/tmpfile.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/src/stdio/tmpfile.c b/src/stdio/tmpfile.c
index b050f7fd..a6b72236 100644
--- a/src/stdio/tmpfile.c
+++ b/src/stdio/tmpfile.c
@@ -3,14 +3,17 @@
#include <unistd.h>
#include "stdio_impl.h"
+#define MAXTRIES 100
+
FILE *tmpfile(void)
{
char buf[L_tmpnam], *s;
int fd;
FILE *f;
- for (;;) {
+ int try;
+ for (try=0; try<MAXTRIES; try++) {
s = tmpnam(buf);
- if (!s) return NULL;
+ if (!s) return 0;
fd = syscall(SYS_open, s, O_RDWR|O_CREAT|O_EXCL|O_LARGEFILE, 0600);
if (fd >= 0) {
f = __fdopen(fd, "w+");
@@ -18,6 +21,7 @@ FILE *tmpfile(void)
return f;
}
}
+ return 0;
}
LFS64(tmpfile);