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#if 0
exec cc -Weverything -o ~/.bin/xx $0
#endif
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char **argv)
{
char *path = NULL;
if (argc > 1)
path = argv[1];
FILE *file = path ? fopen(path, "r") : stdin;
if (!file) {
perror(path);
return EXIT_FAILURE;
}
uint8_t buf[16];
for (;;) {
size_t n = fread(buf, 1, sizeof(buf), file);
for (size_t i = 0; i < n; ++i)
printf("%02x ", buf[i]);
printf("\n");
if (n < sizeof(buf)) break;
}
if (ferror(file)) {
perror(path);
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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