[OpenWrt-Devel] [PATCH][uclient][V2] fetch: fix segfault after destination was not reached

[Luka Perkov]

Signed-off-by: Luka Perkov <l...@openwrt.org>
---
v1->v2:
* don't change connecting to connected

 uclient-fetch.c | 34 ++++++++++++++++++++++++++++------
 1 file changed, 28 insertions(+), 6 deletions(-)

diff --git a/uclient-fetch.c b/uclient-fetch.c
index 881b4ea..22f15c6 100644
--- a/uclient-fetch.c
+++ b/uclient-fetch.c
@@ -149,13 +149,27 @@ static void msg_connecting(struct uclient *cl)
        fprintf(stderr, "Connecting to %s:%d\n", addr, port);
 }
 
-static void init_request(struct uclient *cl)
+static int init_request(struct uclient *cl)
 {
+       int rc;
+
        out_bytes = 0;
-       uclient_connect(cl);
+
+       rc = uclient_connect(cl);
+       if (rc)
+               return rc;
+
        msg_connecting(cl);
-       uclient_http_set_request_type(cl, "GET");
-       uclient_request(cl);
+
+       rc = uclient_http_set_request_type(cl, "GET");
+       if (rc)
+               return rc;
+
+       rc = uclient_request(cl);
+       if (rc)
+               return rc;
+
+       return 0;
 }
 
 static void eof_cb(struct uclient *cl)
@@ -269,6 +283,7 @@ int main(int argc, char **argv)
        struct uclient *cl;
        int ch;
        int longopt_idx = 0;
+       int rc;
 
        init_ustream_ssl();
 
@@ -340,8 +355,15 @@ int main(int argc, char **argv)
        if (ssl_ctx)
                uclient_http_set_ssl_ctx(cl, ssl_ops, ssl_ctx, verify);
 
-       init_request(cl);
-       uloop_run();
+       rc = init_request(cl);
+       if (!rc) {
+               /* no error received, we can enter main loop */
+               uloop_run();
+       } else {
+               fprintf(stderr, "Failed to establish connection\n");
+               error_ret = 4;
+       }
+
        uloop_done();
 
        uclient_free(cl);
-- 
2.0.1
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