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Make xor not explode with a single -x argument

This commit is contained in:
Neale Pickett 2017-07-20 15:27:06 +00:00
parent f0a6f62e13
commit c79d866e30
1 changed files with 9 additions and 7 deletions
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16
xor.c
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@ -1,5 +1,7 @@
/* /*
* xor filter -- 2012 Zephyr <zephyr@dirtbags.net> This file is in the public domain. I make no promises about the functionality * xor filter -- 2017 Neale Pickett <zephyr@dirtbags.net>
*
* This file is in the public domain. I make no promises about the functionality
* of this program. * of this program.
*/ */
@ -14,16 +16,16 @@ main(int argc, char *argv[])
int base = 0; int base = 0;
int arg; int arg;
if (argc < 2) { if (argv[start] && (0 == strcmp(argv[start], "-x"))) {
fprintf(stderr, "Usage: %s [-x] m1 [m2 ...]\n", argv[0]);
return 1;
}
if (0 == strcmp(argv[1], "-x")) {
base = 16; base = 16;
start += 1; start += 1;
} }
if (start + 1 > argc) {
fprintf(stderr, "Usage: %s [-x] m1 [m2 ...]\n", argv[0]);
return 1;
}
arg = start; arg = start;
while (1) { while (1) {