From: Peter Tyser <ptyser@xes-inc.com>
Date: Fri, 24 Apr 2009 20:59:46 +0000 (-0500)
Subject: ncb: Check return value of write()
X-Git-Tag: v2009.06-rc1~14
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=eea8be86d1c2b570660d1f6c553845e13164231a;p=oweals%2Fu-boot.git

ncb: Check return value of write()

This prevents the compilation warning:

ncb.c: In function 'main':
ncb.c:32: warning: ignoring return value of ‘write’, declared with
attribute warn_unused_result

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
---

diff --git a/tools/ncb.c b/tools/ncb.c
index 30acbead5f..ec8d8a7435 100644
--- a/tools/ncb.c
+++ b/tools/ncb.c
@@ -1,3 +1,4 @@
+#include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
 #include <sys/socket.h>
@@ -29,7 +30,8 @@ int main (int argc, char *argv[])
 		len = recvfrom (s, buf, sizeof buf, 0, (struct sockaddr *) &addr, &addr_len);
 		if (len < 0)
 			break;
-		write (1, buf, len);
+		if (write (1, buf, len) != len)
+			fprintf(stderr, "WARNING: serial characters dropped\n");
 	}
 
 	return 0;