static void ask_to_confirm(unsigned char* keyblob, unsigned int keybloblen) {
char* fp = NULL;
FILE *tty = NULL;
char response = 'z';
fp = sign_key_fingerprint(keyblob, keybloblen);
if (cli_opts.always_accept_key) {
fprintf(stderr, "\nHost '%s' key accepted unconditionally.\n(fingerprint %s)\n",
cli_opts.remotehost,
fp);
m_free(fp);
return;
}
fprintf(stderr, "\nHost '%s' is not in the trusted hosts file.\n(fingerprint %s)\nDo you want to continue connecting? (y/n) ",
cli_opts.remotehost,
fp);
m_free(fp);
tty = fopen(_PATH_TTY, "r");
if (tty) {
response = getc(tty);
fclose(tty);
} else {
response = getc(stdin);
}
if (response == 'y') {
return;
}
dropbear_exit("Didn't validate host key");
}
static void printpubkey(sign_key * key, int keytype) {
buffer * buf = NULL;
unsigned char base64key[MAX_PUBKEY_SIZE*2];
unsigned long base64len;
int err;
const char * typestring = NULL;
char *fp = NULL;
int len;
struct passwd * pw = NULL;
char * username = NULL;
char hostname[100];
buf = buf_new(MAX_PUBKEY_SIZE);
buf_put_pub_key(buf, key, keytype);
buf_setpos(buf, 4);
len = buf->len - buf->pos;
base64len = sizeof(base64key);
err = base64_encode(buf_getptr(buf, len), len, base64key, &base64len);
if (err != CRYPT_OK) {
fprintf(stderr, "base64 failed");
}
typestring = signkey_name_from_type(keytype, NULL);
fp = sign_key_fingerprint(buf_getptr(buf, len), len);
/* a user@host comment is informative */
username = "";
pw = getpwuid(getuid());
if (pw) {
username = pw->pw_name;
}
gethostname(hostname, sizeof(hostname));
hostname[sizeof(hostname)-1] = '\0';
printf("Public key portion is:\n%s %s %s@%s\nFingerprint: %s\n",
typestring, base64key, username, hostname, fp);
m_free(fp);
buf_free(buf);
}