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  1. /*
  2.  * Copyright (c) 2008 Jiri Svoboda
  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 <stdio.h>
  30. #include <stdlib.h>
  31. #include <errno.h>
  32. #include "../tester.h"
  33.  
  34. char *test_stdio2(void)
  35. {
  36.     FILE *file;
  37.     char *file_name = "/test";
  38.    
  39.     TPRINTF("Open file \"%s\" for writing...", file_name);
  40.     errno = 0;
  41.     file = fopen(file_name, "wt");
  42.     if (file == NULL) {
  43.         TPRINTF("errno = %d\n", errno);
  44.         return "Failed opening file";
  45.     } else
  46.         TPRINTF("OK\n");
  47.    
  48.     TPRINTF("Write to file...");
  49.     fprintf(file, "integer: %u, string: \"%s\"", 42, "Hello!");
  50.     TPRINTF("OK\n");
  51.    
  52.     TPRINTF("Close...");
  53.     if (fclose(file) != 0) {
  54.         TPRINTF("errno = %d\n", errno);
  55.         return "Failed closing file";
  56.     } else
  57.         TPRINTF("OK\n");
  58.    
  59.     TPRINTF("Open file \"%s\" for reading...", file_name);
  60.     file = fopen(file_name, "rt");
  61.     if (file == NULL) {
  62.         TPRINTF("errno = %d\n", errno);
  63.         return "Failed opening file";
  64.     } else
  65.         TPRINTF("OK\n");
  66.    
  67.     TPRINTF("File contains:\n");
  68.     while (true) {
  69.         int c = fgetc(file);
  70.         if (c == EOF)
  71.             break;
  72.         TPRINTF("%c", c);
  73.     }
  74.    
  75.     TPRINTF("\nClose...");
  76.     if (fclose(file) != 0) {
  77.         TPRINTF("errno = %d\n", errno);
  78.         return "Failed closing file";
  79.     } else
  80.         TPRINTF("OK\n");
  81.    
  82.     return NULL;
  83. }
  84.