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annotate quickrypt.c @ 1:9bef0941c6dd

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Add a few comments.
author John "Elwin" Edwards <elwin@sdf.org>
date Sun, 06 May 2012 09:04:14 -0700
parents bd412f63ce0d
children
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1 /*
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2 * quickrypt: a quick and dirty crypt(3) utility for use with node.js.
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3 */
0
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4 #include <stdio.h>
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5 #include <stdlib.h>
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6 #include <string.h>
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7 #include <crypt.h>
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8
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9 int main(int argc, char *argv[]) {
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10 char clear[32], enc[120], *ptr;
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11 fgets(&clear, 32, stdin);
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12 if (!(ptr = strchr(&clear, '\n')))
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13 return 1;
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14 else
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15 *ptr = '\0';
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16 fgets(&enc, 120, stdin);
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17 if (!(ptr = strchr(&enc, '\n')))
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18 return 1;
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19 else
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20 *ptr = '\0';
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21 ptr = crypt(clear, enc);
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22 if (!strcmp(argv[argc - 1], "-s")) {
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23 /* Option -s for "show": output the encrypted version. */
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24 printf("%s\n", ptr);
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25 return 0;
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26 }
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27 /* Otherwise this is a check. */
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28 else if (!strcmp(ptr, enc))
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29 return 0;
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30 return 1;
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31 }