usage.c

   1 /*
   2  * GIT - The information manager from hell
   3  *
   4  * Copyright (C) Linus Torvalds, 2005
   5  */
   6 #include <stdarg.h>
   7 #include "cache.h"
   8
   9 static void report(const char *prefix, const char *err, va_list params)
  10 {
  11         fputs(prefix, stderr);
  12         vfprintf(stderr, err, params);
  13         fputs("\n", stderr);
  14 }
  15
  16 void usage(const char *err)
  17 {
  18         fprintf(stderr, "usage: %s\n", err);
  19         exit(1);
  20 }
  21
  22 void die(const char *err, ...)
  23 {
  24         va_list params;
  25
  26         va_start(params, err);
  27         report("fatal: ", err, params);
  28         va_end(params);
  29         exit(1);
  30 }
  31
  32 int error(const char *err, ...)
  33 {
  34         va_list params;
  35
  36         va_start(params, err);
  37         report("error: ", err, params);
  38         va_end(params);
  39         return -1;
  40 }