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Make -O parameter optional

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This commit is contained in:
Daniel Seiller 2019-08-13 22:21:39 +02:00
parent 634f7e3646
commit 27c8490fd2
1 changed files with 14 additions and 12 deletions
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12
src/mfoc.c
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@ -227,10 +227,10 @@ int main(int argc, char *const argv[])
}
}
if (!pfDump) {
ERR("parameter -O is mandatory");
exit(EXIT_FAILURE);
}
// if (!pfDump) {
// ERR("parameter -O is mandatory");
// exit(EXIT_FAILURE);
// }
// Initialize reader/tag structures
mf_init(&r);
@ -748,6 +748,7 @@ int main(int argc, char *const argv[])
}
// Finally save all keys + data to file
if (pfDump) {
uint16_t dump_size = (t.num_blocks + 1) * 16;
if (fwrite(&mtDump, 1, dump_size, pfDump) != dump_size) {
fprintf(stdout, "Error, cannot write dump\n");
@ -756,6 +757,7 @@ int main(int argc, char *const argv[])
}
fclose(pfDump);
}
}
free(t.sectors);
free(d.distances);
@ -788,7 +790,7 @@ void usage(FILE *stream, int errno)
fprintf(stream, " P number of probes per sector, instead of default of 20\n");
fprintf(stream, " T nonce tolerance half-range, instead of default of 20\n (i.e., 40 for the total range, in both directions)\n");
// fprintf(stream, " s specify the list of sectors to crack, for example -s 0,1,3,5\n");
fprintf(stream, " O file in which the card contents will be written (REQUIRED)\n");
fprintf(stream, " O file in which the card contents will be written\n");
fprintf(stream, " D file in which partial card info will be written in case PRNG is not vulnerable\n");
fprintf(stream, "\n");
fprintf(stream, "Example: mfoc -O mycard.mfd\n");