Fix buffer overrun in varnishadm pass function

Spotted by: Coverity

Fix buffer overrun in varnishadm pass function
Spotted by: Coverity
50bc0029 · Martin Blix Grydeland · 3c8d56a8 · 50bc0029
Commit 50bc0029 authored Oct 01, 2013 by Martin Blix Grydeland
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varnishadm.c bin/varnishadm/varnishadm.c +1 -1

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--- a/bin/varnishadm/varnishadm.c
+++ b/bin/varnishadm/varnishadm.c
@@ -351,7 +351,7 @@ pass(int sock)
 			}
 		}
 		if (fds[1].revents & POLLIN || fds[1].revents & POLLHUP) {
-			n = read(fds[1].fd, buf, sizeof buf);
+			n = read(fds[1].fd, buf, sizeof buf - 1);
 			if (n == 0) {
 				AZ(shutdown(sock, SHUT_WR));
 				fds[1].fd = -1;