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 <[email protected]>
imaami · Apr 27, 2009 · eea8be8 · eea8be8
1 parent dbe29e3
commit eea8be8
Showing 1 changed file with 3 additions and 1 deletion.
diff --git 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;