src/util/imports.c

   1 /**
   2  * \file imports.c
   3  * Standard C library function wrappers.
   4  *
   5  * Imports are services which the device driver or window system or
   6  * operating system provides to the core renderer.  The core renderer (Mesa)
   7  * will call these functions in order to do memory allocation, simple I/O,
   8  * etc.
   9  *
  10  * Some drivers will want to override/replace this file with something
  11  * specialized, but that'll be rare.
  12  *
  13  * Eventually, I want to move roll the glheader.h file into this.
  14  *
  15  * \todo Functions still needed:
  16  * - scanf
  17  * - qsort
  18  * - rand and RAND_MAX
  19  */
  20
  21 /*
  22  * Mesa 3-D graphics library
  23  *
  24  * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
  25  *
  26  * Permission is hereby granted, free of charge, to any person obtaining a
  27  * copy of this software and associated documentation files (the "Software"),
  28  * to deal in the Software without restriction, including without limitation
  29  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  30  * and/or sell copies of the Software, and to permit persons to whom the
  31  * Software is furnished to do so, subject to the following conditions:
  32  *
  33  * The above copyright notice and this permission notice shall be included
  34  * in all copies or substantial portions of the Software.
  35  *
  36  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  37  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  38  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  39  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  40  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  41  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  42  * OTHER DEALINGS IN THE SOFTWARE.
  43  */
  44
  45 #include <stdio.h>
  46 #include <stdarg.h>
  47 #include "c99_math.h"
  48 #include "imports.h"
  49
  50 #ifdef _GNU_SOURCE
  51 #include <locale.h>
  52 #ifdef __APPLE__
  53 #include <xlocale.h>
  54 #endif
  55 #endif
  56
  57
  58 #ifdef _WIN32
  59 #define vsnprintf _vsnprintf
  60 #elif defined(__IBMC__) || defined(__IBMCPP__)
  61 extern int vsnprintf(char *str, size_t count, const char *fmt, va_list arg);
  62 #endif
  63
  64
  65 /** Needed due to #ifdef's, above. */
  66 int
  67 _mesa_vsnprintf(char *str, size_t size, const char *fmt, va_list args)
  68 {
  69    return vsnprintf( str, size, fmt, args);
  70 }
  71
  72 /** Wrapper around vsnprintf() */
  73 int
  74 _mesa_snprintf( char *str, size_t size, const char *fmt, ... )
  75 {
  76    int r;
  77    va_list args;
  78    va_start( args, fmt );
  79    r = vsnprintf( str, size, fmt, args );
  80    va_end( args );
  81    return r;
  82 }
  83
  84