Exit nonzero upon failed write to stdout.

diff --git a/src/ansi2knr.c b/src/ansi2knr.c
index ac9b329073fb79f73951c1612f7f1a00198cf1ef..442a96b2fedf4da3d91b46e64730f7e013079551 100644 (file)
--- a/src/ansi2knr.c
+++ b/src/ansi2knr.c
@@ -1,6 +1,6 @@
 /* Copyright (C) 1989, 1997, 1998 Aladdin Enterprises.  All rights reserved. */
 
-/*$Id: ansi2knr.c,v 1.9 1999/01/13 05:40:42 meyering Exp $*/
+/*$Id: ansi2knr.c,v 1.10 1999/01/25 00:34:26 meyering Exp $*/
 /* Convert ANSI C function definitions to K&R ("traditional C") syntax */
 
 /*
@@ -190,6 +190,7 @@ main(argc, argv)
 {      FILE *in = stdin;
        FILE *out = stdout;
        char *filename = 0;
+       char *program_name = argv[0];
 #define bufsize 5000                   /* arbitrary size */
        char *buf;
        char *line;
@@ -300,8 +301,13 @@ wl:                        fputs(buf, out);
        if ( line != buf )
          fputs(buf, out);
        free(buf);
-       if ( out != stdout )
-         fclose(out);
+
+       if (ferror (out) || fclose (out) != 0)
+         {
+           fprintf (stderr, "%s: write error\n", program_name);
+           exit (1);
+         }
+
        if ( in != stdin )
          fclose(in);
        return 0;