00001
00016 #include <stdio.h>
00017 #include <string.h>
00018
00019 #include "common.h"
00020 #include "sha1.h"
00021
00022
00023 int main(int argc, char *argv[])
00024 {
00025 unsigned char psk[32];
00026 int i;
00027 char *ssid, *passphrase, buf[64], *pos;
00028
00029 if (argc < 2) {
00030 printf("usage: wpa_passphrase <ssid> [passphrase]\n"
00031 "\nIf passphrase is left out, it will be read from "
00032 "stdin\n");
00033 return 1;
00034 }
00035
00036 ssid = argv[1];
00037
00038 if (argc > 2) {
00039 passphrase = argv[2];
00040 } else {
00041 printf("# reading passphrase from stdin\n");
00042 if (fgets(buf, sizeof(buf), stdin) == NULL) {
00043 printf("Failed to read passphrase\n");
00044 return 1;
00045 }
00046 buf[sizeof(buf) - 1] = '\0';
00047 pos = buf;
00048 while (*pos != '\0') {
00049 if (*pos == '\r' || *pos == '\n') {
00050 *pos = '\0';
00051 break;
00052 }
00053 pos++;
00054 }
00055 passphrase = buf;
00056 }
00057
00058 if (strlen(passphrase) < 8 || strlen(passphrase) > 63) {
00059 printf("Passphrase must be 8..63 characters\n");
00060 return 1;
00061 }
00062
00063 pbkdf2_sha1(passphrase, ssid, strlen(ssid), 4096, psk, 32);
00064
00065 printf("network={\n");
00066 printf("\tssid=\"%s\"\n", ssid);
00067 printf("\t#psk=\"%s\"\n", passphrase);
00068 printf("\tpsk=");
00069 for (i = 0; i < 32; i++)
00070 printf("%02x", psk[i]);
00071 printf("\n");
00072 printf("}\n");
00073
00074 return 0;
00075 }
00076
