source: auth.c @ f18209a

#define BITLBEE_CORE
#include "bitlbee.h"

#ifdef WITH_PAM
extern auth_backend_t auth_pam;
#endif
#ifdef WITH_LDAP
extern auth_backend_t auth_ldap;
#endif

GList *auth_init(const char *backend)
{
        GList *gl = NULL;
        int ok = backend ? 0 : 1;
#ifdef WITH_PAM
        gl = g_list_append(gl, &auth_pam);
        if (backend && !strcmp(backend, "pam")) {
                ok = 1;
        }
#endif
#ifdef WITH_LDAP
        gl = g_list_append(gl, &auth_ldap);
        if (backend && !strcmp(backend, "ldap")) {
                ok = 1;
        }
#endif

        return ok ? gl : NULL;
}

storage_status_t auth_check_pass(irc_t *irc, const char *nick, const char *password)
{
        GList *gl;
        storage_status_t status = storage_check_pass(irc, nick, password);

        if (status == STORAGE_CHECK_BACKEND) {
                for (gl = global.auth; gl; gl = gl->next) {
                        auth_backend_t *be = gl->data;
                        if (!strcmp(be->name, irc->auth_backend)) {
                                status = be->check_pass(nick, password);
                                break;
                        }
                }
        } else if (status == STORAGE_NO_SUCH_USER && global.conf->auth_backend) {
                for (gl = global.auth; gl; gl = gl->next) {
                        auth_backend_t *be = gl->data;
                        if (!strcmp(be->name, global.conf->auth_backend)) {
                                status = be->check_pass(nick, password);
                                /* Save the user so storage_load will pick them up, similar to
                                 * what the register command would do */
                                if (status == STORAGE_OK) {
                                        irc->auth_backend = g_strdup(global.conf->auth_backend);
                                        storage_save(irc, (char *)password, 0);
                                }
                                break;
                        }
                }
        }

        if (status == STORAGE_OK) {
                irc_setpass(irc, password);
        }

        return status;
}