status: add print_status_gzbytes

This is in the client code, rather than libnotmuch_util, because it
prints to stderr. Also it in pretends to generate notmuch status
codes.

1 files changed, 14 insertions, 0 deletions

diff --git a/status.c b/status.c
index d0ae47f4..09d82a17 100644
--- a/status.c
+++ b/status.c
@@ -72,3 +72,17 @@ status_to_exit (notmuch_status_t status)
 	return EXIT_FAILURE;
     }
 }
+
+notmuch_status_t
+print_status_gzbytes (const char *loc, gzFile file, int bytes)
+{
+    if (bytes <= 0) {
+	int errnum;
+	const char *errstr = gzerror (file, &errnum);
+	fprintf (stderr, "%s: zlib error %s (%d)\n", loc, errstr, errnum);
+	return NOTMUCH_STATUS_FILE_ERROR;
+    } else {
+	return NOTMUCH_STATUS_SUCCESS;
+    }
+}
+