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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>
tags/2020-06-01
Peter Tyser 12 years ago
committed by Wolfgang Denk
parent
commit
eea8be86d1
1 changed files with 3 additions and 1 deletions
  1. +3
    -1
      tools/ncb.c

+ 3
- 1
tools/ncb.c View File

@@ -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;