Mega Code Archive
Seek a byte in file
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#include <stdio.h>
#include <stdlib.h>
int main(int argc, char *argv[])
{
long loc;
FILE *filep;
/* see if filename is specified */
if(argc != 2) {
printf("File name missing.\n");
exit(1);
}
if((filep = fopen(argv[1] , "rb"))==NULL) {
printf("Cannot open file.\n");
exit(1);
}
printf("Enter byte to seek to: ");
scanf("%ld", &loc);
if(fseek(filep, loc, SEEK_SET)) {
printf("Seek error.\n");
exit(1);
}
printf("Value at %ld = %d", loc, getc(filep));
fclose(filep);
return 0;
}
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