[PATCH (resend) 3/3] Check return value of ftruncate call in http.c

[Tay Ray Chuan <rctay89@gmail.com>]

From: Jeff Lasslett <jeff.lasslett@gmail.com>

In new_http_object_request(), check ftruncate() call return value and
handle possible errors.

Signed-off-by: Jeff Lasslett <jeff.lasslett@gmail.com>
Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
---

 Jeff, I took out all the url-specific cleanups and expanded their
 scope (see earlier patches). You can safely focus on ftruncate() and
 do an abort there. :)

 http.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/http.c b/http.c
index 98f9707..14d5357 100644
--- a/http.c
+++ b/http.c
@@ -1187,7 +1187,11 @@ struct http_object_request *new_http_object_request(const char *base_url,
 		if (prev_posn>0) {
 			prev_posn = 0;
 			lseek(freq->localfile, 0, SEEK_SET);
-			ftruncate(freq->localfile, 0);
+			if (ftruncate(freq->localfile, 0) < 0) {
+				error("Couldn't truncate temporary file %s for %s: %s",
+					  freq->tmpfile, freq->filename, strerror(errno));
+				goto abort;
+			}
 		}
 	}

--
1.6.3.1