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  1. /*
  2.  * Copyright (c) 2005 Martin Decky
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup libc
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #include <libc.h>
  36. #include <unistd.h>
  37. #include <stdio.h>
  38. #include <io/io.h>
  39. #include <string.h>
  40. #include <errno.h>
  41.  
  42. const static char nl = '\n';
  43.  
  44. int puts(const char *str)
  45. {
  46.     size_t count;
  47.    
  48.     if (str == NULL)
  49.         return putnchars("(NULL)", 6);
  50.    
  51.     for (count = 0; str[count] != 0; count++);
  52.     if (write_stdout((void *) str, count) == count) {
  53.         if (write_stdout(&nl, 1) == 1)
  54.             return 0;
  55.     }
  56.    
  57.     return EOF;
  58. }
  59.  
  60. /** Put count chars from buffer to stdout without adding newline
  61.  * @param buf Buffer with size at least count bytes - NULL pointer NOT allowed!
  62.  * @param count
  63.  * @return 0 on succes, EOF on fail
  64.  */
  65. int putnchars(const char *buf, size_t count)
  66. {
  67.     if (write_stdout((void *) buf, count) == count)
  68.         return 0;
  69.    
  70.     return EOF;
  71. }
  72.  
  73. /** Same as puts, but does not print newline at end
  74.  *
  75.  */
  76. int putstr(const char *str)
  77. {
  78.     size_t count;
  79.    
  80.     if (str == NULL)
  81.         return putnchars("(NULL)", 6);
  82.  
  83.     for (count = 0; str[count] != 0; count++);
  84.     if (write_stdout((void *) str, count) == count)
  85.         return 0;
  86.    
  87.     return EOF;
  88. }
  89.  
  90. int putchar(int c)
  91. {
  92.     char buf[STR_BOUNDS(1)];
  93.     size_t offs;
  94.  
  95.     offs = 0;
  96.     if (chr_encode(c, buf, &offs, STR_BOUNDS(1)) != EOK)
  97.         return EOF;
  98.  
  99.     if (write_stdout((void *) buf, offs) == offs)
  100.         return c;
  101.  
  102.     return EOF;
  103. }
  104.  
  105. int getchar(void)
  106. {
  107.     unsigned char c;
  108.  
  109.     flush_stdout();
  110.     if (read_stdin((void *) &c, 1) == 1)
  111.         return c;
  112.    
  113.     return EOF;
  114. }
  115.  
  116. int fflush(FILE *f)
  117. {
  118.     (void) f;
  119.     return flush_stdout();
  120. }
  121.  
  122. /** @}
  123.  */
  124.