direct/test-framework/timothy_tests/quick_tests/test_yaffs_read_EINVAL.c

   1 /*
   2  * YAFFS: Yet another FFS. A NAND-flash specific file system.
   3  *
   4  * Copyright (C) 2002-2011 Aleph One Ltd.
   5  *   for Toby Churchill Ltd and Brightstar Engineering
   6  *
   7  * Created by Timothy Manning <timothy@yaffs.net>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  */
  13
  14 /*this is no longer relevent because it is not possiable to read -1 bytes*/
  15
  16 #include "test_yaffs_read_EINVAL.h"
  17 #include "test_yaffs_write.h"
  18
  19 static int handle = -1;
  20 static char *file_name = NULL;
  21
  22 int test_yaffs_read_EINVAL(void)
  23 {
  24         int error_code = 0;
  25         char text[2000000];
  26         int output=0;
  27         /*if (yaffs_close(yaffs_open(FILE_PATH,O_CREAT | O_RDWR, FILE_MODE))==-1){
  28                 print_message("failed to create file before remounting\n",1);
  29                 return -1;
  30         }*/
  31         handle=yaffs_open(FILE_PATH,O_CREAT | O_RDWR, FILE_MODE);
  32
  33         if (handle<0){
  34                 print_message("could not open file\n",2);
  35                 return -1;
  36         }
  37
  38         /*there needs a large amout of test in the file in order to trigger EINVAL */
  39         output=test_yaffs_read_EINVAL_init();
  40         if (output<0){
  41                 print_message("could not write text to the file\n",2);
  42                 return -1;
  43         }
  44
  45         if (handle>=0){
  46                 output=yaffs_read(handle, text, -1);
  47                 if (output<0){
  48                         error_code=yaffs_get_error();
  49                         if (abs(error_code)== EINVAL){
  50                                 return 1;
  51                         } else {
  52                                 print_message("different error than expected\n",2);
  53                                 return -1;
  54                         }
  55                 } else{
  56                         print_message("read a negative number of bytes (which is a bad thing)\n",2);
  57                         return -1;
  58                 }
  59         } else {
  60                 print_message("error opening file\n",2);
  61                 return -1;
  62         }
  63 }
  64
  65 int test_yaffs_read_EINVAL_clean(void)
  66 {
  67         int output=0;
  68         if (handle>=0){
  69                 if(file_name){
  70                         free(file_name);
  71                         file_name = NULL;
  72                 }
  73
  74
  75                 output= yaffs_truncate(FILE_PATH,FILE_SIZE );
  76                 if (output>=0){
  77                         output=test_yaffs_write();
  78                         if (output<0){
  79                                 print_message("failed to write to file\n",2);
  80                                 return -1;
  81                         } else {
  82                                 output=test_yaffs_write_clean();
  83                                 if (output<0){
  84                                         print_message("failed to clean the write_to_file function\n",2);
  85                                 }
  86                         }
  87                 } else {
  88                         print_message("failed to truncate file\n",2);
  89                         return -1;
  90                 }
  91
  92                 if(output>=0){
  93                         output=yaffs_close(handle);
  94                         if (output>=0){
  95                                 return 1;
  96                         } else {
  97                                 print_message("could not close the handle\n",2);
  98                                 return -1;
  99                         }
 100                 } else {
 101                         print_message("failed to fix the file\n",2);
 102                         return -1;
 103                 }
 104         } else {
 105                 print_message("no open handle\n",2);
 106                 return -1;
 107         }
 108 }
 109
 110 int test_yaffs_read_EINVAL_init(void)
 111 {
 112         int output=0;
 113         int x=0;
 114
 115         int file_name_length=1000000;
 116
 117         file_name = malloc(file_name_length);
 118         if(!file_name){
 119                 print_message("unable to create file text\n",2);
 120                 return -1;
 121         }
 122
 123         strcpy(file_name,YAFFS_MOUNT_POINT);
 124         for (x=strlen(YAFFS_MOUNT_POINT); x<file_name_length -1; x++){
 125                 file_name[x]='a';
 126         }
 127         file_name[file_name_length-2]='\0';
 128
 129
 130
 131         if (handle>=0){
 132                 output= yaffs_write(handle, file_name, file_name_length-1);
 133                 if (output<0){
 134                         print_message("could not write text to file\n",2);
 135                         return -1;
 136                 } else {
 137
 138                         return 1;
 139                 }
 140
 141         } else {
 142                 print_message("error opening file\n",2);
 143                 return -1;
 144         }
 145
 146 }
 147
 148