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-rw-r--r--tests/bugs/core/bug-834465.c61
1 files changed, 61 insertions, 0 deletions
diff --git a/tests/bugs/core/bug-834465.c b/tests/bugs/core/bug-834465.c
new file mode 100644
index 00000000000..61d3deac077
--- /dev/null
+++ b/tests/bugs/core/bug-834465.c
@@ -0,0 +1,61 @@
+#include <sys/file.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+int
+main (int argc, char *argv[])
+{
+ int fd = -1;
+ char *filename = NULL;
+ struct flock lock = {0, };
+ int i = 0;
+ int ret = -1;
+
+ if (argc != 2) {
+ fprintf (stderr, "Usage: %s <filename> ", argv[0]);
+ goto out;
+ }
+
+ filename = argv[1];
+
+ fd = open (filename, O_RDWR | O_CREAT, 0);
+ if (fd < 0) {
+ fprintf (stderr, "open (%s) failed (%s)\n", filename,
+ strerror (errno));
+ goto out;
+ }
+
+ lock.l_type = F_WRLCK;
+ lock.l_whence = SEEK_SET;
+ lock.l_start = 1;
+ lock.l_len = 1;
+
+ while (i < 100) {
+ lock.l_type = F_WRLCK;
+ ret = fcntl (fd, F_SETLK, &lock);
+ if (ret < 0) {
+ fprintf (stderr, "fcntl setlk failed (%s)\n",
+ strerror (errno));
+ goto out;
+ }
+
+ lock.l_type = F_UNLCK;
+ ret = fcntl (fd, F_SETLK, &lock);
+ if (ret < 0) {
+ fprintf (stderr, "fcntl setlk failed (%s)\n",
+ strerror (errno));
+ goto out;
+ }
+
+ i++;
+ }
+
+ ret = 0;
+
+out:
+ return ret;
+}