glib/gnulib/printf.c

   1 /* GLIB - Library of useful routines for C programming
   2  * Copyright (C) 2003 Matthias Clasen
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 /*
  21  * Modified by the GLib Team and others 2003.  See the AUTHORS
  22  * file for a list of people on the GLib Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GLib at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 #ifdef HAVE_CONFIG_H
  28 # include <config.h>
  29 #endif
  30 #include <string.h>
  31 #include <stdlib.h>
  32 #include <stdio.h>
  33 #include "g-gnulib.h"
  34 #include "vasnprintf.h"
  35 #include "printf.h"
  36
  37 int _g_gnulib_printf (char const *format, ...)
  38 {
  39   va_list args;
  40   int retval;
  41
  42   va_start (args, format);
  43   retval = _g_gnulib_vprintf (format, args);
  44   va_end (args);
  45
  46   return retval;
  47 }
  48
  49 int _g_gnulib_fprintf (FILE *file, char const *format, ...)
  50 {
  51   va_list args;
  52   int retval;
  53
  54   va_start (args, format);
  55   retval = _g_gnulib_vfprintf (file, format, args);
  56   va_end (args);
  57
  58   return retval;
  59 }
  60
  61 int _g_gnulib_sprintf (char *string, char const *format, ...)
  62 {
  63   va_list args;
  64   int retval;
  65
  66   va_start (args, format);
  67   retval = _g_gnulib_vsprintf (string, format, args);
  68   va_end (args);
  69
  70   return retval;
  71 }
  72
  73 int _g_gnulib_snprintf (char *string, size_t n, char const *format, ...)
  74 {
  75   va_list args;
  76   int retval;
  77
  78   va_start (args, format);
  79   retval = _g_gnulib_vsnprintf (string, n, format, args);
  80   va_end (args);
  81
  82   return retval;
  83 }
  84
  85 int _g_gnulib_vprintf (char const *format, va_list args)
  86 {
  87   return _g_gnulib_vfprintf (stdout, format, args);
  88 }
  89
  90 int _g_gnulib_vfprintf (FILE *file, char const *format, va_list args)
  91 {
  92   char *result;
  93   size_t length;
  94
  95   result = vasnprintf (NULL, &length, format, args);
  96   if (result == NULL)
  97     return -1;
  98
  99   fwrite (result, 1, length, file);
 100   free (result);
 101
 102   return length;
 103 }
 104
 105 int _g_gnulib_vsprintf (char *string, char const *format, va_list args)
 106 {
 107   char *result;
 108   size_t length;
 109
 110   result = vasnprintf (NULL, &length, format, args);
 111   if (result == NULL)
 112     return -1;
 113
 114   memcpy (string, result, length + 1);
 115   free (result);
 116
 117   return length;
 118 }
 119
 120 int _g_gnulib_vsnprintf (char *string, size_t n, char const *format, va_list args)
 121 {
 122   char *result;
 123   size_t length;
 124
 125   result = vasnprintf (NULL, &length, format, args);
 126   if (result == NULL)
 127     return -1;
 128
 129   if (n > 0)
 130     {
 131       memcpy (string, result, MIN(length + 1, n));
 132       string[n - 1] = 0;
 133     }
 134
 135   free (result);
 136
 137   return length;
 138 }
 139
 140 int _g_gnulib_vasprintf (char **result, char const *format, va_list args)
 141 {
 142   size_t length;
 143
 144   *result = vasnprintf (NULL, &length, format, args);
 145   if (*result == NULL)
 146     return -1;
 147
 148   return length;
 149 }
 150
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