Category : C Source Code
Archive   : FLOOK.ZIP
Filename : FLOOK.C

/* Program Name: FLOOK.C */
/* Description : View a file in HEX and ASCII */

#include "stdio.h"
#include "ctype.h"

#define SIZE 128

char buf[SIZE];
void display();

main(argc, argv)

int argc;
char *argv[];

{
FILE *fp;
int sector, numread;

if (argc!=2) {
printf("Type in at prompt Í> FLOOK filename\n");
exit(1);
}

printf("\nFLOOK : PC File Viewing Utility\n");
printf(" (enter -1 to quit)\n");

if ((fp=fopen(argv[1], "rb"))==NULL) {
printf("File cannot be opened!\n");
exit(1);
}

do {
printf("Sector to View: ");
scanf("%ld", §or);
if (fseek(fp, sector*SIZE, SEEK_SET)) {
printf("Seek Error!\n");
}

if((numread=fread(buf, 1, SIZE, fp)) != SIZE) {
printf("EOF reached!\n");
}

display(numread);
} while(sector>=0);
}

/* display the file */
void display(numread)
int numread;
{
int i,j;

for(i=0; i for(j=0; j<16; j++) printf("%3X", buf[i*16+j]);
printf(" ");
for(j=0; j<16; j++) {
if(isprint(buf[i*16+j])) printf("%c", buf[i*16+j]);
else printf(".");
}
printf("\n");
}
}