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-rw-r--r--lib/libc/stdio/rewind.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/lib/libc/stdio/rewind.c b/lib/libc/stdio/rewind.c
index 4f8391b..f6609d6 100644
--- a/lib/libc/stdio/rewind.c
+++ b/lib/libc/stdio/rewind.c
@@ -35,17 +35,31 @@
*/
#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
static char sccsid[] = "@(#)rewind.c 8.1 (Berkeley) 6/4/93";
+#endif
+static const char rcsid[] =
+ "$Id$";
#endif /* LIBC_SCCS and not lint */
#include <errno.h>
#include <stdio.h>
+#ifdef _THREAD_SAFE
+#include <pthread.h>
+#include "pthread_private.h"
+#endif
void
rewind(fp)
register FILE *fp;
{
+#ifdef _THREAD_SAFE
+ _thread_flockfile(fp,__FILE__,__LINE__);
+#endif
(void) fseek(fp, 0L, SEEK_SET);
clearerr(fp);
+#ifdef _THREAD_SAFE
+ _thread_funlockfile(fp);
+#endif
errno = 0; /* not required, but seems reasonable */
}
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