ggo.c

   1 /*
   2  * Copyright (C) 2008 Andre Noll <maan@systemlinux.org>
   3  *
   4  * Licensed under the GPL v2. For licencing details see COPYING.
   5  */
   6
   7 /** \file ggo.c Function for printing help. */
   8
   9
  10 #include "para.h"
  11 #include "ggo.h"
  12
  13 __printf_1_2 void printf_or_die(const char *fmt, ...)
  14 {
  15         va_list argp;
  16         int ret;
  17
  18         va_start(argp, fmt);
  19         ret = vprintf(fmt, argp);
  20         va_end(argp);
  21         if (ret >= 0)
  22                 return;
  23         fprintf(stderr, "%s: %s\n", __FUNCTION__, strerror(errno));
  24 }
  25
  26 void ggo_print_help(struct ggo_help *help, int detailed_help)
  27 {
  28         const char **p;
  29
  30         if (!help)
  31                 return;
  32         if (detailed_help)
  33                 p = help->detailed_help;
  34         else
  35                 p = help->short_help;
  36         if (!p)
  37                 return;
  38         p += 3; /* skip -h and -V */
  39         for (; *p; p++)
  40                 printf_or_die("\t%s\n", *p);
  41 }