xorg-server-1.4/os/xprintf.c

   1 /*
   2  * printf routines which xalloc their buffer
   3  */
   4 /*
   5  * Copyright (c) 2004 Alexander Gottwald
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included in
  15  * all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  20  * THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  21  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  22  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  23  * DEALINGS IN THE SOFTWARE.
  24  *
  25  * Except as contained in this notice, the name(s) of the above copyright
  26  * holders shall not be used in advertising or otherwise to promote the sale,
  27  * use or other dealings in this Software without prior written authorization.
  28  */
  29 #ifdef HAVE_DIX_CONFIG_H
  30 #include <dix-config.h>
  31 #endif
  32
  33 #include <X11/Xos.h>
  34 #include "os.h"
  35 #include <stdarg.h>
  36 #include <stdio.h>
  37
  38 #ifndef va_copy
  39 # ifdef __va_copy
  40 #  define va_copy __va_copy
  41 # else
  42 #  error "no working va_copy was found"
  43 # endif
  44 #endif
  45
  46 char *
  47 Xvprintf(const char *format, va_list va)
  48 {
  49     char *ret;
  50     int size;
  51     va_list va2;
  52
  53     va_copy(va2, va);
  54     size = vsnprintf(NULL, 0, format, va2);
  55     va_end(va2);
  56
  57     ret = (char *)Xalloc(size + 1);
  58     if (ret == NULL)
  59         return NULL;
  60
  61     vsnprintf(ret, size + 1, format, va);
  62     ret[size] = 0;
  63     return ret;
  64 }
  65
  66 char *Xprintf(const char *format, ...)
  67 {
  68     char *ret;
  69     va_list va;
  70     va_start(va, format);
  71     ret = Xvprintf(format, va);
  72     va_end(va);
  73     return ret;
  74 }
  75
  76 char *
  77 XNFvprintf(const char *format, va_list va)
  78 {
  79     char *ret;
  80     int size;
  81     va_list va2;
  82
  83     va_copy(va2, va);
  84     size = vsnprintf(NULL, 0, format, va2);
  85     va_end(va2);
  86
  87     ret = (char *)XNFalloc(size + 1);
  88     if (ret == NULL)
  89         return NULL;
  90
  91     vsnprintf(ret, size + 1, format, va);
  92     ret[size] = 0;
  93     return ret;
  94 }
  95
  96 char *XNFprintf(const char *format, ...)
  97 {
  98     char *ret;
  99     va_list va;
 100     va_start(va, format);
 101     ret = XNFvprintf(format, va);
 102     va_end(va);
 103     return ret;
 104 }