]> CyberLeo.Net >> Repos - FreeBSD/FreeBSD.git/blob - contrib/wpa/wpa_supplicant/wpa_passphrase.c
Update hostapd/wpa_supplicant to 2.8 to fix multiple vulnerabilities.
[FreeBSD/FreeBSD.git] / contrib / wpa / wpa_supplicant / wpa_passphrase.c
1 /*
2  * WPA Supplicant - ASCII passphrase to WPA PSK tool
3  * Copyright (c) 2003-2005, Jouni Malinen <j@w1.fi>
4  *
5  * This software may be distributed under the terms of the BSD license.
6  * See README for more details.
7  */
8
9 #include "includes.h"
10
11 #include "common.h"
12 #include "crypto/sha1.h"
13
14
15 int main(int argc, char *argv[])
16 {
17         unsigned char psk[32];
18         int i;
19         char *ssid, *passphrase, buf[64], *pos;
20         size_t len;
21
22         if (argc < 2) {
23                 printf("usage: wpa_passphrase <ssid> [passphrase]\n"
24                         "\nIf passphrase is left out, it will be read from "
25                         "stdin\n");
26                 return 1;
27         }
28
29         ssid = argv[1];
30
31         if (argc > 2) {
32                 passphrase = argv[2];
33         } else {
34                 printf("# reading passphrase from stdin\n");
35                 if (fgets(buf, sizeof(buf), stdin) == NULL) {
36                         printf("Failed to read passphrase\n");
37                         return 1;
38                 }
39                 buf[sizeof(buf) - 1] = '\0';
40                 pos = buf;
41                 while (*pos != '\0') {
42                         if (*pos == '\r' || *pos == '\n') {
43                                 *pos = '\0';
44                                 break;
45                         }
46                         pos++;
47                 }
48                 passphrase = buf;
49         }
50
51         len = os_strlen(passphrase);
52         if (len < 8 || len > 63) {
53                 printf("Passphrase must be 8..63 characters\n");
54                 return 1;
55         }
56         if (has_ctrl_char((u8 *) passphrase, len)) {
57                 printf("Invalid passphrase character\n");
58                 return 1;
59         }
60
61         pbkdf2_sha1(passphrase, (u8 *) ssid, os_strlen(ssid), 4096, psk, 32);
62
63         printf("network={\n");
64         printf("\tssid=\"%s\"\n", ssid);
65         printf("\t#psk=\"%s\"\n", passphrase);
66         printf("\tpsk=");
67         for (i = 0; i < 32; i++)
68                 printf("%02x", psk[i]);
69         printf("\n");
70         printf("}\n");
71
72         return 0;
73 }