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-rw-r--r--test/misc/tst-seekdir.c79
1 files changed, 79 insertions, 0 deletions
diff --git a/test/misc/tst-seekdir.c b/test/misc/tst-seekdir.c
new file mode 100644
index 0000000..7dd5d2e
--- /dev/null
+++ b/test/misc/tst-seekdir.c
@@ -0,0 +1,79 @@
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <dirent.h>
+#include <stdlib.h>
+
+int
+main (int argc, char *argv[])
+{
+ DIR * dirp;
+ long int save3 = 0;
+ long int cur;
+ int i = 0;
+ int result = 0;
+ struct dirent *dp;
+ off_t save0, rewind_ret;
+
+ dirp = opendir (".");
+ if (dirp == NULL)
+ {
+ printf ("opendir failed: %s\n", strerror(errno));
+ return 1;
+ }
+
+ save0 = telldir (dirp);
+ if (save0 == -1)
+ {
+ printf ("telldir failed: %s\n", strerror(errno));
+ result = 1;
+ }
+
+ for (dp = readdir (dirp); dp != NULL; dp = readdir (dirp))
+ {
+ /* save position 3 (after fourth entry) */
+ if (i++ == 3)
+ save3 = telldir (dirp);
+
+ printf ("%s\n", dp->d_name);
+
+ /* stop at 400 (just to make sure dirp->__offset and dirp->__size are
+ scrambled */
+ if (i == 400)
+ break;
+ }
+
+ printf ("going back past 4-th entry...\n");
+
+ /* go back to saved entry */
+ seekdir (dirp, save3);
+
+ /* Check whether telldir equals to save3 now. */
+ cur = telldir (dirp);
+ if (cur != save3)
+ {
+ printf ("seekdir (d, %ld); telldir (d) == %ld\n", save3, cur);
+ result = 1;
+ }
+
+ /* print remaining files (3-last) */
+ for (dp = readdir (dirp); dp != NULL; dp = readdir (dirp))
+ printf ("%s\n", dp->d_name);
+
+ /* Check rewinddir */
+ rewinddir (dirp);
+ rewind_ret = telldir (dirp);
+ if (rewind_ret == -1)
+ {
+ printf ("telldir failed: %s\n", strerror(errno));
+ result = 1;
+ }
+ else if (save0 != rewind_ret)
+ {
+ printf ("rewinddir didn't reset directory stream\n");
+ result = 1;
+ }
+
+ closedir (dirp);
+ return result;
+}