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-rw-r--r--checkfs/makefiles.c264
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diff --git a/checkfs/makefiles.c b/checkfs/makefiles.c
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--- a/checkfs/makefiles.c
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@@ -1,264 +0,0 @@
-/*
-
- * Copyright Daniel Industries.
-
- * Created by: Vipin Malik (vipin.malik@daniel.com)
- *
- * This is GPL code. See the file COPYING for more details
- *
- * Software distributed under the Licence is distributed on an "AS IS"
- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
- * See the Licence for the specific language governing rights and
- * limitations under the Licence.
-
- * $Id: makefiles.c,v 1.2 2005/11/07 11:15:17 gleixner Exp $
-
-This program creates MAX_NUM_FILES files (file00001, file00002 etc) and
-fills them with random numbers till they are a random length. Then it checksums
-the files (with the checksum as the last two bytes) and closes the file.
-
-The fist int is the size of the file in bytes.
-
-It then opens another file and the process continues.
-
-The files are opened in the current dir.
-
-*/
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include "common.h"
-
-#define FILESIZE_MAX 20000.0 /* for each file in sizeof(int). Must be a float #
- Hence, 20000.0 = 20000*4 = 80KB max file size
- */
-
-static const unsigned short crc_ccitt_table[] = {
- 0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf,
- 0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7,
- 0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e,
- 0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876,
- 0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd,
- 0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5,
- 0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c,
- 0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974,
- 0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb,
- 0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3,
- 0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a,
- 0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72,
- 0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9,
- 0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,
- 0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738,
- 0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70,
- 0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7,
- 0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff,
- 0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036,
- 0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e,
- 0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5,
- 0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd,
- 0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134,
- 0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c,
- 0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3,
- 0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb,
- 0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232,
- 0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a,
- 0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1,
- 0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9,
- 0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330,
- 0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78
-};
-
-//This code was taken from the AX.25 HDLC packet driver
-//in LINUX. Once I test and have a better understanding of what
-//it is doing, it will be better commented.
-
-//For now one can speculate that the CRC routine always expects the
-//CRC to calculate out to 0xf0b8 (the hardcoded value at the end)
-//and returns TRUE if it is and FALSE if it doesn't.
-//Why don't people document better!!!!
-void check_crc_ccitt(char *filename)
-{
- FILE *fp;
- unsigned short crc = 0xffff;
- int len;
- char dataByte;
- int retry;
-
- fp = fopen(filename,"rb");
- if(!fp){
- printf("Verify checksum:Error! Cannot open filename passed for verify checksum: %s\n",filename);
- exit(1);
- }
- /*the first int contains an int that is the length of the file in long.*/
- if(fread(&len, sizeof(int), 1, fp) != 1){
- printf("verify checksum:Error reading from file: %s", filename);
- fclose(fp);
- exit(1);
- }
- rewind(fp);
- len+=2; /*the file has two extra bytes at the end, it's checksum. Those
- two MUST also be included in the checksum calculation.
- */
-
- for (;len>0;len--){
- retry=5; /*retry 5 times*/
- while(!fread(&dataByte, sizeof(char), 1, fp) && retry--);
- if(!retry){
- printf("Unexpected error reading from file: %s\n", filename);
- printf("...bytes left to be read %i.\n\n",len);
- fclose(fp);
- exit(1);
- }
- crc = (crc >> 8) ^ crc_ccitt_table[(crc ^ dataByte) & 0xff];
- }
- fclose(fp);
- if( (crc & 0xffff) != 0xf0b8){
- printf("Verify checksum: Error in file %s.\n\n",filename);
- exit(1);
- }
-}//end check_crc_ccitt()
-
-
-
-/*this routine opens a file 'filename' and checksumn's the entire
- contents, and then appends the checksum at the end of the file,
- closes the file and returns.
-*/
-void checksum(char *filename){
-
- FILE *fp;
- unsigned short crc = 0xffff;
- int len;
- char dataByte;
- int retry;
-
- fp = fopen(filename,"rb");
- if(!fp){
- printf("Error! Cannot open filename passed for checksum: %s\n",filename);
- exit(1);
- }
- /*the first int contains an int that is the length of the file in longs.*/
- if(fread(&len, sizeof(int), 1, fp) != 1){
- printf("Error reading from file: %s", filename);
- fclose(fp);
- exit(1);
- }
- printf("Calculating checksum on %i bytes.\n",len);
- rewind(fp); /*the # of bytes int is also included in the checksum.*/
-
- for (;len>0;len--){
- retry=5; /*retry 5 times*/
- while(!fread(&dataByte, sizeof(char), 1, fp) && retry--);
- if(!retry){
- printf("Unexpected error reading from file: %s\n", filename);
- printf("...bytes left to be read %i.\n\n",len);
- fclose(fp);
- exit(1);
- }
- crc = (crc >> 8) ^ crc_ccitt_table[(crc ^ dataByte) & 0xff];
- }
- crc ^= 0xffff;
- printf("The CRC: %x\n\n", crc);
-
- /*the CRC has been calculated. now close the file and open it in append mode*/
- fclose(fp);
-
- fp = fopen(filename,"ab"); /*open in append mode. CRC goes at the end.*/
- if(!fp){
- printf("Error! Cannot open filename to update checksum: %s\n",filename);
- exit(1);
- }
- if(fwrite(&crc, sizeof(crc), 1, fp) != 1){
- printf("error! unable to update the file for checksum.\n");
- fclose(fp);
- exit(1);
- }
- fflush(fp);
- fclose(fp);
-
-
-}/*end checksum()*/
-
-
-
-int main(void){
-
- FILE *fp, *cyclefp;
- int cycleCount;
- int rand_data;
- int data_size;
- int temp_size;
- char filename[30];
- short filenameCounter = 0;
- unsigned short counter;
- unsigned short numberFiles;
-
- numberFiles = MAX_NUM_FILES;
-
- for(counter=0;counter<numberFiles;counter++){
- /*create the filename in sequence*/
- sprintf(filename,"file%i",filenameCounter++);
- fp = fopen(filename,"wb");
- if(!fp){
- printf("Error! Cannot open file: %s\n",filename);
- exit(1);
- }
- /*now write a bunch of random binary data to the file*/
- /*first figure out how much data to write. That is random also.*/
-
- while(
- ((data_size = (int)(1 + (int)(FILESIZE_MAX*rand()/(RAND_MAX+1.0)))) < 100)
- )/*file should not be less than 100 ints long. (so that we have decent length files, that's all)*/
-
- printf("Writing %i ints to the file.\n", data_size);
-
- temp_size = data_size * sizeof(int);
-
- if(!fwrite(&temp_size, sizeof(int), 1, fp)){
- printf("File write error!!.\n");
- fclose(fp);
- exit(1);
- }
- data_size--; /*one alrady written*/
-
- while(data_size--){
- rand_data = (int)(1 + (int)(10000.0*rand()/(RAND_MAX+1.0)));
- if(!fwrite(&rand_data, sizeof(int), 1, fp)){
- printf("File write error!!.\n");
- fclose(fp);
- exit(1);
- }
- }
- fflush(fp);
- fclose(fp);
- /*now calculate the file checksum and append it to the end*/
- checksum(filename);
- /*this is just a test. Check the CRC to amek sure that it is OK.*/
- check_crc_ccitt(filename);
- }
-
- /*now make a file called "cycleCnt" and put a binary (int)0 in it.
- This file keeps count as to how many cycles have taken place!*/
- cyclefp = fopen("cycleCnt","wb");
- if(!cyclefp){
- printf("cannot open file \"cycleCnt\". Cannot continue.\n");
- exit(1);
- }
- cycleCount = 0;
- if(fwrite(&cycleCount, sizeof(cycleCount), 1,cyclefp) !=1){
- printf("Error writing to file cycleCnt. Cannot continue.\n");
- exit(1);
- }
- fclose(cyclefp);
- exit(0);
-
-}/*end main()*/
-
-
-
-
-
-
-
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