1 files changed, 90 insertions, 0 deletions
diff --git a/contrib/gperf/src/stderr.c b/contrib/gperf/src/stderr.c
new file mode 100644
index 0000000..3f00dd5
--- /dev/null
+++ b/contrib/gperf/src/stderr.c
@@ -0,0 +1,90 @@
+/* Provides a useful variable-length argument error handling abstraction.
+
+   Copyright (C) 1989 Free Software Foundation, Inc.
+   written by Douglas C. Schmidt (schmidt@ics.uci.edu)
+
+This file is part of GNU GPERF.
+
+GNU GPERF 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 1, or (at your option)
+any later version.
+
+GNU GPERF 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 GNU GPERF; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#include <stdio.h>
+#include "stderr.h"
+
+/* Holds the name of the currently active program. */
+static char *program_name;
+
+/* Sets name of program. */
+
+void 
+set_program_name (prog_name)
+     char *prog_name;
+{ 
+  program_name = prog_name;
+}
+
+/* Valid Options (prefixed by '%', as in printf format strings) include:
+   'a': exit the program at this point
+   'c': print a character
+   'd': print a decimal number
+   'e': call the function pointed to by the corresponding argument
+   'f','g': print a double
+   'n': print the name of the program (NULL if not set in constructor or elsewhere)
+   'p': print out the appropriate errno value from sys_errlist
+   's': print out a character string
+   '%': print out a single percent sign, '%' */
+
+void 
+report_error (va_alist) 
+     va_dcl
+{
+  extern int errno, sys_nerr;
+  extern char *sys_errlist[];
+  typedef void (*PTF)();
+	typedef char *CHARP;
+  va_list argp;
+  int     abort = 0;
+  char   *format;
+
+  va_start (argp);
+
+  for (format = va_arg (argp, char *); *format; format++) 
+    {
+      if (*format != '%') 
+        putc (*format, stderr);
+      else 
+        {
+          switch(*++format) 
+            {
+            case '%' : putc ('%', stderr); break;
+            case 'a' : abort = 1; break;
+            case 'c' : putc (va_arg (argp, int), stderr); break;
+            case 'd' : fprintf (stderr, "%d", va_arg (argp, int)); break;
+            case 'e' : (*va_arg (argp, PTF))(); break;
+            case 'f' : fprintf (stderr, "%g", va_arg (argp, double)); break;
+            case 'n' : fputs (program_name ? program_name : "error", stderr); break;
+            case 'p' : 
+              if (errno < sys_nerr) 
+                fprintf (stderr, "%s: %s", va_arg (argp, CHARP), sys_errlist[errno]);
+              else 
+                fprintf (stderr, "<unknown error> %d", errno);
+              break;
+            case 's' : fputs (va_arg (argp, CHARP), stderr); break;
+            }
+        }
+      if (abort) 
+        exit (1);
+    }
+  va_end (argp);
+}