mirror of https://github.com/dirtbags/fluffy.git
53 lines
834 B
C
53 lines
834 B
C
/*
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* xor filter -- 2020 Neale Pickett <neale@woozle.org>
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*
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* This file is in the public domain. I make no promises about the functionality
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* of this program.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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int main(int argc, char* argv[]) {
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int radix = 0;
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int arg;
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int c;
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while ((c = getopt(argc, argv, "ax")) != -1) {
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switch (c) {
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case 'x':
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radix = 16;
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break;
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default:
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fprintf(stderr, "Usage: %s [-x] m1 [m2 ...]\n", argv[0]);
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return 1;
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}
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}
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if (!argv[optind]) {
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return 1;
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}
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arg = optind;
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while (1) {
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int c = getchar();
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unsigned char mask;
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if (!argv[arg]) {
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arg = optind;
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}
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mask = strtol(argv[arg++], NULL, radix);
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if (EOF == c) {
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break;
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}
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c ^= mask;
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putchar(c);
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}
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return 0;
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}
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