int
otp_challenge (OtpContext *ctx, char *user, char *str, size_t len)
{
void *dbm;
int ret;
ctx->challengep = 0;
ctx->err = NULL;
ctx->user = strdup(user);
if (ctx->user == NULL) {
ctx->err = "Out of memory";
return -1;
}
dbm = otp_db_open ();
if (dbm == NULL) {
ctx->err = "Cannot open database";
return -1;
}
ret = otp_get (dbm, ctx);
otp_db_close (dbm);
if (ret)
return ret;
snprintf (str, len,
"[ otp-%s %u %s ]",
ctx->alg->name, ctx->n-1, ctx->seed);
ctx->challengep = 1;
return 0;
}
int
otp_verify_user (OtpContext *ctx, const char *passwd)
{
void *dbm;
int ret;
if (!ctx->challengep)
return -1;
ret = otp_verify_user_1 (ctx, passwd);
dbm = otp_db_open ();
if (dbm == NULL) {
free(ctx->user);
return -1;
}
otp_put (dbm, ctx);
free(ctx->user);
otp_db_close (dbm);
return ret;
}