Seek a byte in file : File Content Search « File « C / ANSI-C

1. C / ANSI-C
2. File
3. File Content Search

Seek a byte in file

#include <stdio.h>
#include <stdlib.h>

int main(int argc, char *argv[])
{
  long loc;
  FILE *fp;

  /* see if filename is specified */
  if(argc != 2) {
    printf("File name missing.\n");
    exit(1);
  }

  if((fp = fopen(argv[1] , "rb"))==NULL) {
    printf("Cannot open file.\n");
    exit(1);
  }

  printf("Enter byte to seek to: ");
  scanf("%ld", &loc);
 
  if(fseek(fp, loc, SEEK_SET)) {
    printf("Seek error.\n");
    exit(1);
  }

  printf("Value at %ld = %d", loc, getc(fp));
  fclose(fp);

  return 0;
}


           
       

Related examples in the same category