blob: 94b7b4eaf4bccd16964aa9da1ea2525ab4efc3bc [file] [log] [blame]
// Copyright 2016 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
int main(int argc, char** argv) {
unsigned char x;
int fd = 0;
if (argc == 2) {
fd = open(argv[1], O_RDONLY);
if (fd < 0) {
printf("dump1: cannot open '%s'\n", argv[1]);
return -1;
}
}
for (;;) {
int r = read(fd, &x, 1);
if (r == 0) {
continue;
}
if (r != 1) {
break;
}
if (x == 'z') {
break;
}
printf("%02x ", x);
fflush(stdout);
}
printf("\n");
return 0;
}