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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. #include <libc.h>
  30. #include <unistd.h>
  31. #include <stdio.h>
  32. #include <io/io.h>
  33.  
  34. static char nl = '\n';
  35.  
  36. int puts(const char * str)
  37. {
  38.     size_t count;
  39.    
  40.     for (count = 0; str[count] != 0; count++);
  41.     if (write(1, (void * ) str, count) == count) {
  42.         if (write(1, &nl, 1) == 1)
  43.             return 0;
  44.     }
  45.    
  46.     return EOF;
  47. }
  48.  
  49. /** Put count chars from buffer to stdout without adding newline
  50.  * @param buf Buffer with size at least count bytes
  51.  * @param count
  52.  * @return 0 on succes, EOF on fail
  53.  */
  54. int putnchars(const char * buf, size_t count)
  55. {
  56.     if (write(1, (void * ) buf, count) == count) {
  57.             return 0;
  58.     }
  59.    
  60.     return EOF;
  61. }
  62.  
  63. /** Same as puts, but does not print newline at end
  64.  *
  65.  */
  66. int putstr(const char * str)
  67. {
  68.     size_t count;
  69.    
  70.     if (str == NULL) {
  71.         return putnchars("(NULL)",6 );
  72.     }
  73.  
  74.     for (count = 0; str[count] != 0; count++);
  75.     if (write(1, (void * ) str, count) == count) {
  76.             return 0;
  77.     }
  78.    
  79.     return EOF;
  80. }
  81.  
  82. ssize_t write(int fd, const void * buf, size_t count)
  83. {
  84.     return (ssize_t) __SYSCALL3(SYS_IO, (sysarg_t) fd, (sysarg_t) buf, (sysarg_t) count);
  85. }
  86.  
  87.  
  88.