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/* $OpenBSD: pop_auth.c,v 1.4 2009/12/20 15:55:42 tobias Exp $ */
/*
* AUTHORIZATION state handling.
*/
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <syslog.h>
#include "misc.h"
#include "params.h"
#include "protocol.h"
#include "pop_auth.h"
#if POP_VIRTUAL
#include "virtual.h"
#endif
static char *pop_user, *pop_pass;
static int pop_auth_quit(char *params)
{
if (params) return POP_ERROR;
return POP_LEAVE;
}
static int pop_auth_user(char *params)
{
char *user;
user = pop_get_param(¶ms);
if (!user || pop_user || params) return POP_ERROR;
if (!(pop_user = strdup(user))) return POP_CRASH_SERVER;
return POP_OK;
}
static int pop_auth_pass(char *params)
{
if (!params) return POP_ERROR;
if (!pop_user) {
memset(params, 0, strlen(params));
return POP_ERROR;
}
pop_pass = strdup(params);
memset(params, 0, strlen(params));
if (pop_pass == NULL) return POP_CRASH_SERVER;
return POP_STATE;
}
static struct pop_command pop_auth_commands[] = {
{"QUIT", pop_auth_quit},
{"USER", pop_auth_user},
{"PASS", pop_auth_pass},
{NULL, NULL}
};
int do_pop_auth(int channel)
{
pop_init();
if (pop_reply_ok()) return 1;
pop_user = NULL;
if (pop_handle_state(pop_auth_commands) == POP_STATE) {
pop_clean();
write_loop(channel, (char *)&pop_buffer, sizeof(pop_buffer));
write_loop(channel, pop_user, strlen(pop_user) + 1);
write_loop(channel, pop_pass, strlen(pop_pass) + 1);
memset(pop_pass, 0, strlen(pop_pass));
if (close(channel)) return 1;
}
return 0;
}
void log_pop_auth(int result, char *user)
{
if (result == AUTH_NONE) {
syslog(SYSLOG_PRI_LO, "Didn't attempt authentication");
return;
}
#if POP_VIRTUAL
if (virtual_domain) {
syslog(result == AUTH_OK ? SYSLOG_PRI_LO : SYSLOG_PRI_HI,
"Authentication %s for %s@%s",
result == AUTH_OK ? "passed" : "failed",
user ? user : "UNKNOWN USER",
virtual_domain);
return;
}
#endif
syslog(result == AUTH_OK ? SYSLOG_PRI_LO : SYSLOG_PRI_HI,
"Authentication %s for %s",
result == AUTH_OK ? "passed" : "failed",
user ? user : "UNKNOWN USER");
}
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