1 files changed, 109 insertions, 0 deletions
diff --git a/src/error.c b/src/error.c
new file mode 100644
index 0000000..5daafd8
--- /dev/null
+++ b/src/error.c
@@ -0,0 +1,109 @@
+/* error.c -- error handler for noninteractive utilities
+   Copyright (C) 1990, 91, 92, 93, 94, 95 Free Software Foundation, Inc.
+
+   This program 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, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along
+   with this program; if not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+/* Written by David MacKenzie <djm@gnu.ai.mit.edu>.  */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include "system.h"
+
+#if !HAVE_DECL_STRERROR
+extern const char *strerror (int en);
+#endif
+
+#if HAVE_VPRINTF || HAVE_DOPRNT || _LIBC
+# if __STDC__
+#  include <stdarg.h>
+#  define VA_START(args, lastarg) va_start(args, lastarg)
+# else
+#  include <varargs.h>
+#  define VA_START(args, lastarg) va_start(args)
+# endif
+#else
+# define va_alist a1, a2, a3, a4, a5, a6, a7, a8
+# define va_dcl char *a1, *a2, *a3, *a4, *a5, *a6, *a7, *a8;
+#endif
+
+/* This variable is incremented each time `error' is called.  */
+unsigned int error_message_count;
+
+/* If NULL, error will flush stdout, then print on stderr the program
+   name, a colon and a space.  Otherwise, error will call this
+   function without parameters instead.  */
+void (*error_print_progname) () = NULL;
+
+#ifdef _LIBC
+# define program_name program_invocation_name
+#endif
+
+/* The calling program should define program_name and set it to the
+   name of the executing program.  */
+extern char *program_name;
+
+/* Print the program name and error message MESSAGE, which is a printf-style
+   format string with optional args.
+   If ERRNUM is nonzero, print its corresponding system error message.
+   Exit with status STATUS if it is nonzero.  */
+/* VARARGS */
+
+void
+#if defined(VA_START) && __STDC__
+error (int status, int errnum, const char *message, ...)
+#else
+error (status, errnum, message, va_alist)
+     int status;
+     int errnum;
+     char *message;
+     va_dcl
+#endif
+{
+#ifdef VA_START
+  va_list args;
+#endif
+
+  if (error_print_progname)
+    (*error_print_progname) ();
+  else
+    {
+      fflush (stdout);
+      fprintf (stderr, "%s: ", program_name);
+    }
+
+#ifdef VA_START
+  VA_START (args, message);
+# if HAVE_VPRINTF || _LIBC
+  vfprintf (stderr, message, args);
+# else
+  _doprnt (message, args, stderr);
+# endif
+  va_end (args);
+#else
+  fprintf (stderr, message, a1, a2, a3, a4, a5, a6, a7, a8);
+#endif
+
+  ++error_message_count;
+
+  if (errnum)
+    fprintf (stderr, ": %s", strerror (errnum));
+  putc ('\n', stderr);
+  fflush (stderr);
+  if (status)
+    exit (status);
+}