vis

commit fece993997442bc4d0b85a3337719532e98785dc
parent 68d02a0e85ee7f3fbc75afd0d88746a5b545740f
Author: Marc André Tanner <mat@brain-dump.org>
Date:   Wed,  8 Feb 2017 19:35:31 +0100

vis-menu: check read(2) return value

Fixes CID 137371

Diffstat:
M
vis-menu.c
 | 
3
++-

1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/vis-menu.c b/vis-menu.c
@@ -308,7 +308,8 @@ readstdin() {
 
 static void
 xread(int fd, void *buf, size_t nbyte) {
-	if (read(fd, buf, nbyte) < 0)
+	ssize_t r = read(fd, buf, nbyte);
+	if (r < 0 || (size_t)r != nbyte)
 		die("Can not read.");
 }