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) 2002-2018 Aleph One Ltd.
   5  *
   6  * Created by Timothy Manning <timothy@yaffs.net>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  */
  12
  13 /*this is no longer relevent because it is not possiable to read -1 bytes*/
  14
  15 #include "test_yaffs_read_EINVAL.h"
  16 #include "test_yaffs_write.h"
  17
  18 static int handle = -1;
  19 static char *file_name = NULL;
  20
  21 int test_yaffs_read_EINVAL(void)
  22 {
  23         int error_code = 0;
  24         char text[2000000];
  25         int output=0;
  26         /*if (yaffs_close(yaffs_open(FILE_PATH,O_CREAT | O_RDWR, FILE_MODE))==-1){
  27                 print_message("failed to create file before remounting\n",1);
  28                 return -1;
  29         }*/
  30         handle=yaffs_open(FILE_PATH,O_CREAT | O_RDWR, FILE_MODE);
  31
  32         if (handle<0){
  33                 print_message("could not open file\n",2);
  34                 return -1;
  35         }
  36
  37         /*there needs a large amout of test in the file in order to trigger EINVAL */
  38         output=test_yaffs_read_EINVAL_init();
  39         if (output<0){
  40                 print_message("could not write text to the file\n",2);
  41                 return -1;
  42         }
  43
  44         if (handle>=0){
  45                 output=yaffs_read(handle, text, -1);
  46                 if (output<0){
  47                         error_code=yaffs_get_error();
  48                         if (abs(error_code)== EINVAL){
  49                                 return 1;
  50                         } else {
  51                                 print_message("different error than expected\n",2);
  52                                 return -1;
  53                         }
  54                 } else{
  55                         print_message("read a negative number of bytes (which is a bad thing)\n",2);
  56                         return -1;
  57                 }
  58         } else {
  59                 print_message("error opening file\n",2);
  60                 return -1;
  61         }
  62 }
  63
  64 int test_yaffs_read_EINVAL_clean(void)
  65 {
  66         int output=0;
  67         if (handle>=0){
  68                 if(file_name){
  69                         free(file_name);
  70                         file_name = NULL;
  71                 }
  72
  73
  74                 output= yaffs_truncate(FILE_PATH,FILE_SIZE );
  75                 if (output>=0){
  76                         output=test_yaffs_write();
  77                         if (output<0){
  78                                 print_message("failed to write to file\n",2);
  79                                 return -1;
  80                         } else {
  81                                 output=test_yaffs_write_clean();
  82                                 if (output<0){
  83                                         print_message("failed to clean the write_to_file function\n",2);
  84                                 }
  85                         }
  86                 } else {
  87                         print_message("failed to truncate file\n",2);
  88                         return -1;
  89                 }
  90
  91                 if(output>=0){
  92                         output=yaffs_close(handle);
  93                         if (output>=0){
  94                                 return 1;
  95                         } else {
  96                                 print_message("could not close the handle\n",2);
  97                                 return -1;
  98                         }
  99                 } else {
 100                         print_message("failed to fix the file\n",2);
 101                         return -1;
 102                 }
 103         } else {
 104                 print_message("no open handle\n",2);
 105                 return -1;
 106         }
 107 }
 108
 109 int test_yaffs_read_EINVAL_init(void)
 110 {
 111         int output=0;
 112         int x=0;
 113
 114         int file_name_length=1000000;
 115
 116         file_name = malloc(file_name_length);
 117         if(!file_name){
 118                 print_message("unable to create file text\n",2);
 119                 return -1;
 120         }
 121
 122         strcpy(file_name,YAFFS_MOUNT_POINT);
 123         for (x=strlen(YAFFS_MOUNT_POINT); x<file_name_length -1; x++){
 124                 file_name[x]='a';
 125         }
 126         file_name[file_name_length-2]='\0';
 127
 128
 129
 130         if (handle>=0){
 131                 output= yaffs_write(handle, file_name, file_name_length-1);
 132                 if (output<0){
 133                         print_message("could not write text to file\n",2);
 134                         return -1;
 135                 } else {
 136
 137                         return 1;
 138                 }
 139
 140         } else {
 141                 print_message("error opening file\n",2);
 142                 return -1;
 143         }
 144
 145 }
 146
 147