Fix tell/seek operations

* Makefile (clean): descend into t as well.
* t/Makefile (clean): New goal.
* runcap.h (runcap_seek): Return off_t.
* seek.c (runcap_seek): Change return value.  Fix operation.
* tell.c (runcap_tell): Bugfix.
* t/rt.c: New option -r for testing seek.
* t/08seek.t: New testcase.
* t/09seek.t: New testcase.

1 files changed, 2 insertions, 2 deletions

diff --git a/runcap.h b/runcap.h
index 3ed907d..0ece8e7 100644
--- a/runcap.h
+++ b/runcap.h
@@ -90,12 +90,12 @@ runcap_get_capture(struct runcap *rc, int stream)
 int runcap_getc(struct runcap *rc, int stream, char *cp);
 ssize_t runcap_getline(struct runcap *rc, int stream, char **pstr, size_t *psize);
 off_t runcap_tell(struct runcap *rc, int stream);
-int runcap_seek(struct runcap *rc, int stream, off_t off, int whence);
+off_t runcap_seek(struct runcap *rc, int stream, off_t off, int whence);
 
 static inline int
 runcap_rewind(struct runcap *rc, int stream)
 {
-	return runcap_seek(rc, stream, 0, 0);
+	return runcap_seek(rc, stream, 0, 0) != 0;
 }	
 
 #endif