Tolerate lack of ac_exitcode.

[chiark-utils.git] / cprogs / myopt.c

diff --git a/cprogs/myopt.c b/cprogs/myopt.c
index e776f92e53d6c8561968b5ce24983d6671a1dde9..c4d5a867aae0adcdca2f593ac5ce4955e7dce364 100644 (file)
--- a/cprogs/myopt.c
+++ b/cprogs/myopt.c
@@ -1,11 +1,12 @@
 /*
+ * libdpkg - Debian packaging suite library routines
  * myopt.c - my very own option parsing
  *
- * Copyright (C) 1994,1995,1998 Ian Jackson <ian@chiark.greenend.org.uk>
+ * Copyright (C) 1994,1995 Ian Jackson <ian@davenant.greenend.org.uk>
  *
  * This is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2,
+ * published by the Free Software Foundation; either version 3,
  * or (at your option) any later version.
  *
  * This is distributed in the hope that it will be useful, but
@@ -14,14 +15,29 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public
- * License along with this file; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * License along with this file; if not, consult the Free Software
+ * Foundation's website at www.fsf.org, or the GNU Project website at
+ * www.gnu.org.
  */
 
+#include <stdio.h>
 #include <string.h>
+#include <stdarg.h>
+#include <stdlib.h>
 
 #include "myopt.h"
 
+void badusage(const char *fmt, ...) {
+  va_list al;
+  
+  va_start(al,fmt);
+  vfprintf(stderr,fmt,al);
+  va_end(al);
+  fputc('\n',stderr);
+  usagemessage();
+  exit(-1);
+}
+
 void myopt(const char *const **argvp, const struct cmdinfo *cmdinfos) {
   const struct cmdinfo *cip;
   const char *p, *value;