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  1. /*
  2.  * Copyright (c) 1990, 2007 The Regents of the University of California.
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms are permitted
  6.  * provided that the above copyright notice and this paragraph are
  7.  * duplicated in all such forms and that any documentation,
  8.  * advertising materials, and other materials related to such
  9.  * distribution and use acknowledge that the software was developed
  10.  * by the University of California, Berkeley.  The name of the
  11.  * University may not be used to endorse or promote products derived
  12.  * from this software without specific prior written permission.
  13.  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
  14.  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  15.  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  16.  */
  17.  
  18. /* This code created by modifying snprintf.c so copyright inherited. */
  19. /* doc in siprintf.c */
  20.  
  21. #include <_ansi.h>
  22. #include <reent.h>
  23. #include <stdio.h>
  24. #ifdef _HAVE_STDC
  25. #include <stdarg.h>
  26. #else
  27. #include <varargs.h>
  28. #endif
  29. #include <limits.h>
  30. #include <errno.h>
  31. #include "local.h"
  32.  
  33. int
  34. #ifdef _HAVE_STDC
  35. _DEFUN (_sniprintf_r, (ptr, str, size, fmt),
  36.         struct _reent *ptr _AND
  37.         char *str _AND
  38.         size_t size _AND
  39.         _CONST char *fmt _DOTS)
  40. #else
  41. _sniprintf_r (ptr, str, size, fmt, va_alist)
  42.      struct _reent *ptr;
  43.      char *str;
  44.      size_t size;
  45.      _CONST char *fmt;
  46.      va_dcl
  47. #endif
  48. {
  49.   int ret;
  50.   va_list ap;
  51.   FILE f;
  52.  
  53.   if (size > INT_MAX)
  54.     {
  55.       ptr->_errno = EOVERFLOW;
  56.       return EOF;
  57.     }
  58.   f._flags = __SWR | __SSTR;
  59.   f._bf._base = f._p = (unsigned char *) str;
  60.   f._bf._size = f._w = (size > 0 ? size - 1 : 0);
  61.   f._file = -1;  /* No file. */
  62. #ifdef _HAVE_STDC
  63.   va_start (ap, fmt);
  64. #else
  65.   va_start (ap);
  66. #endif
  67.   ret = _svfiprintf_r (ptr, &f, fmt, ap);
  68.   va_end (ap);
  69.   if (ret < EOF)
  70.     ptr->_errno = EOVERFLOW;
  71.   if (size > 0)
  72.     *f._p = 0;
  73.   return (ret);
  74. }
  75.  
  76. #ifndef _REENT_ONLY
  77.  
  78. int
  79. #ifdef _HAVE_STDC
  80. _DEFUN (sniprintf, (str, size, fmt),
  81.         char *str _AND
  82.         size_t size _AND
  83.         _CONST char *fmt _DOTS)
  84. #else
  85. sniprintf (str, size, fmt, va_alist)
  86.      char *str;
  87.      size_t size;
  88.      _CONST char *fmt;
  89.      va_dcl
  90. #endif
  91. {
  92.   int ret;
  93.   va_list ap;
  94.   FILE f;
  95.   struct _reent *ptr = _REENT;
  96.  
  97.   if (size > INT_MAX)
  98.     {
  99.       ptr->_errno = EOVERFLOW;
  100.       return EOF;
  101.     }
  102.   f._flags = __SWR | __SSTR;
  103.   f._bf._base = f._p = (unsigned char *) str;
  104.   f._bf._size = f._w = (size > 0 ? size - 1 : 0);
  105.   f._file = -1;  /* No file. */
  106. #ifdef _HAVE_STDC
  107.   va_start (ap, fmt);
  108. #else
  109.   va_start (ap);
  110. #endif
  111.   ret = _svfiprintf_r (ptr, &f, fmt, ap);
  112.   va_end (ap);
  113.   if (ret < EOF)
  114.     ptr->_errno = EOVERFLOW;
  115.   if (size > 0)
  116.     *f._p = 0;
  117.   return (ret);
  118. }
  119.  
  120. #endif
  121.