mirror of
https://github.com/vanhoefm/fragattacks.git
synced 2024-11-25 08:48:31 -05:00
32289112c4
The stdout of wpa_passphrase is often piped directly into the wpa_supplicant config file. In case of errors these will be written to the file and possibly not noticed by the user. Use fprintf to print errors to stderr. Signed-off-by: Sam Tygier <samtygier@yahoo.co.uk>
74 lines
1.5 KiB
C
74 lines
1.5 KiB
C
/*
|
|
* WPA Supplicant - ASCII passphrase to WPA PSK tool
|
|
* Copyright (c) 2003-2005, Jouni Malinen <j@w1.fi>
|
|
*
|
|
* This software may be distributed under the terms of the BSD license.
|
|
* See README for more details.
|
|
*/
|
|
|
|
#include "includes.h"
|
|
|
|
#include "common.h"
|
|
#include "crypto/sha1.h"
|
|
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
unsigned char psk[32];
|
|
int i;
|
|
char *ssid, *passphrase, buf[64], *pos;
|
|
size_t len;
|
|
|
|
if (argc < 2) {
|
|
printf("usage: wpa_passphrase <ssid> [passphrase]\n"
|
|
"\nIf passphrase is left out, it will be read from "
|
|
"stdin\n");
|
|
return 1;
|
|
}
|
|
|
|
ssid = argv[1];
|
|
|
|
if (argc > 2) {
|
|
passphrase = argv[2];
|
|
} else {
|
|
fprintf(stderr, "# reading passphrase from stdin\n");
|
|
if (fgets(buf, sizeof(buf), stdin) == NULL) {
|
|
fprintf(stderr, "Failed to read passphrase\n");
|
|
return 1;
|
|
}
|
|
buf[sizeof(buf) - 1] = '\0';
|
|
pos = buf;
|
|
while (*pos != '\0') {
|
|
if (*pos == '\r' || *pos == '\n') {
|
|
*pos = '\0';
|
|
break;
|
|
}
|
|
pos++;
|
|
}
|
|
passphrase = buf;
|
|
}
|
|
|
|
len = os_strlen(passphrase);
|
|
if (len < 8 || len > 63) {
|
|
fprintf(stderr, "Passphrase must be 8..63 characters\n");
|
|
return 1;
|
|
}
|
|
if (has_ctrl_char((u8 *) passphrase, len)) {
|
|
fprintf(stderr, "Invalid passphrase character\n");
|
|
return 1;
|
|
}
|
|
|
|
pbkdf2_sha1(passphrase, (u8 *) ssid, os_strlen(ssid), 4096, psk, 32);
|
|
|
|
printf("network={\n");
|
|
printf("\tssid=\"%s\"\n", ssid);
|
|
printf("\t#psk=\"%s\"\n", passphrase);
|
|
printf("\tpsk=");
|
|
for (i = 0; i < 32; i++)
|
|
printf("%02x", psk[i]);
|
|
printf("\n");
|
|
printf("}\n");
|
|
|
|
return 0;
|
|
}
|