fix popen not to leak pipes from one child to another

[musl] / src / stdio / tmpnam.c

diff --git a/src/stdio/tmpnam.c b/src/stdio/tmpnam.c
index 92f699c..d667a83 100644 (file)
--- a/src/stdio/tmpnam.c
+++ b/src/stdio/tmpnam.c
@@ -2,12 +2,13 @@
 #include <fcntl.h>
 #include <errno.h>
 #include <sys/stat.h>
+#include <string.h>
+#include <stdlib.h>
 #include "syscall.h"
+#include "kstat.h"
 
 #define MAXTRIES 100
 
-char *__randname(char *);
-
 char *tmpnam(char *buf)
 {
        static char internal[L_tmpnam];
@@ -16,7 +17,12 @@ char *tmpnam(char *buf)
        int r;
        for (try=0; try<MAXTRIES; try++) {
                __randname(s+12);
-               r = __syscall(SYS_lstat, s, &(struct stat){0});
+#ifdef SYS_lstat
+               r = __syscall(SYS_lstat, s, &(struct kstat){0});
+#else
+               r = __syscall(SYS_fstatat, AT_FDCWD, s,
+                       &(struct kstat){0}, AT_SYMLINK_NOFOLLOW);
+#endif
                if (r == -ENOENT) return strcpy(buf ? buf : internal, s);
        }
        return 0;