[sheepdog] [PATCH 1/2] sheepfs: check 'dog' command at startup

[Liu Yuan]

Signed-off-by: Liu Yuan <namei.unix at gmail.com>
---
 sheepfs/core.c |   10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/sheepfs/core.c b/sheepfs/core.c
index 02d5830..fecfb98 100644
--- a/sheepfs/core.c
+++ b/sheepfs/core.c
@@ -311,11 +311,10 @@ Options:\n\
 
 int main(int argc, char **argv)
 {
-	struct strbuf path = STRBUF_INIT;
+	struct strbuf path = STRBUF_INIT, *t;
 	int ch, longindex;
 	char *dir = NULL, *cwd;
 
-
 	while ((ch = getopt_long(argc, argv, short_options, long_options,
 				 &longindex)) >= 0) {
 		switch (ch) {
@@ -351,6 +350,13 @@ int main(int argc, char **argv)
 		}
 	}
 
+	t = sheepfs_run_cmd("dog");
+	if (!strlen(t->buf)) {
+		fprintf(stderr, "command dog not found\n");
+		exit(1);
+	}
+	strbuf_release(t);
+
 	if (optind != argc)
 		dir = argv[optind];
 	else
-- 
1.7.9.5