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, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 /*
  19  * Modified by the GLib Team and others 2003.  See the AUTHORS
  20  * file for a list of people on the GLib Team.  See the ChangeLog
  21  * files for a list of changes.  These files are distributed with
  22  * GLib at ftp://ftp.gtk.org/pub/gtk/.
  23  */
  24
  25 #ifdef HAVE_CONFIG_H
  26 # include <config.h>
  27 #endif
  28 #include <string.h>
  29 #include <stdlib.h>
  30 #include <stdio.h>
  31 #include "g-gnulib.h"
  32 #include "vasnprintf.h"
  33 #include "printf.h"
  34
  35 int _g_gnulib_printf (char const *format, ...)
  36 {
  37   va_list args;
  38   int retval;
  39
  40   va_start (args, format);
  41   retval = _g_gnulib_vprintf (format, args);
  42   va_end (args);
  43
  44   return retval;
  45 }
  46
  47 int _g_gnulib_fprintf (FILE *file, char const *format, ...)
  48 {
  49   va_list args;
  50   int retval;
  51
  52   va_start (args, format);
  53   retval = _g_gnulib_vfprintf (file, format, args);
  54   va_end (args);
  55
  56   return retval;
  57 }
  58
  59 int _g_gnulib_sprintf (char *string, char const *format, ...)
  60 {
  61   va_list args;
  62   int retval;
  63
  64   va_start (args, format);
  65   retval = _g_gnulib_vsprintf (string, format, args);
  66   va_end (args);
  67
  68   return retval;
  69 }
  70
  71 int _g_gnulib_snprintf (char *string, size_t n, char const *format, ...)
  72 {
  73   va_list args;
  74   int retval;
  75
  76   va_start (args, format);
  77   retval = _g_gnulib_vsnprintf (string, n, format, args);
  78   va_end (args);
  79
  80   return retval;
  81 }
  82
  83 int _g_gnulib_vprintf (char const *format, va_list args)
  84 {
  85   return _g_gnulib_vfprintf (stdout, format, args);
  86 }
  87
  88 int _g_gnulib_vfprintf (FILE *file, char const *format, va_list args)
  89 {
  90   char *result;
  91   size_t length, rlength;
  92
  93   result = vasnprintf (NULL, &length, format, args);
  94   if (result == NULL)
  95     return -1;
  96
  97   rlength = fwrite (result, 1, length, file);
  98   free (result);
  99
 100   return rlength;
 101 }
 102
 103 int _g_gnulib_vsprintf (char *string, char const *format, va_list args)
 104 {
 105   char *result;
 106   size_t length;
 107
 108   result = vasnprintf (NULL, &length, format, args);
 109   if (result == NULL)
 110     return -1;
 111
 112   memcpy (string, result, length + 1);
 113   free (result);
 114
 115   return length;
 116 }
 117
 118 int _g_gnulib_vsnprintf (char *string, size_t n, char const *format, va_list args)
 119 {
 120   char *result;
 121   size_t length;
 122
 123   result = vasnprintf (NULL, &length, format, args);
 124   if (result == NULL)
 125     return -1;
 126
 127   if (n > 0)
 128     {
 129       memcpy (string, result, MIN(length + 1, n));
 130       string[n - 1] = 0;
 131     }
 132
 133   free (result);
 134
 135   return length;
 136 }
 137
 138 int _g_gnulib_vasprintf (char **result, char const *format, va_list args)
 139 {
 140   size_t length;
 141
 142   *result = vasnprintf (NULL, &length, format, args);
 143   if (*result == NULL)
 144     return -1;
 145
 146   return length;
 147 }
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