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/*
** Copyright 1998 - 2005 Double Precision, Inc. See COPYING for
** distribution information.
*/
#if HAVE_CONFIG_H
#include "courier_auth_config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include "numlib/numlib.h"
#include "courierauth.h"
#include "courierauthstaticlist.h"
#include "courierauthdebug.h"
#include "authpipelib.h"
#include "authpiperc.h"
extern int _authdaemondopasswd(int wrfd, int rdfd, char *buffer, int bufsiz);
extern int _authdaemondo(int wrfd, int rdfd, const char *authreq,
int (*func)(struct authinfo *, void *), void *arg);
extern int _auth_enumerate(int wrfd, int rdfd,
void(*cb_func)(const char *name,
uid_t uid,
gid_t gid,
const char *homedir,
const char *maildir,
const char *options,
void *void_arg),
void *void_arg);
static int disabled_flag;
/* modelled on auth_generic() in authdaemon.c */
int auth_pipe(const char *service, const char *authtype, char *authdata,
int (*callback_func)(struct authinfo *, void *),
void *callback_arg)
{
char tbuf[NUMBUFSIZE];
size_t l=strlen(service)+strlen(authtype)+strlen(authdata)+2;
char *n=libmail_str_size_t(l, tbuf);
char *buf=malloc(strlen(n)+l+20);
int rdfd, wrfd, rc;
if (!buf)
return 1;
if (disabled_flag)
{
free(buf);
return -1;
}
strcat(strcat(strcpy(buf, "AUTH "), n), "\n");
strcat(strcat(buf, service), "\n");
strcat(strcat(buf, authtype), "\n");
strcat(buf, authdata);
if (getPipe(&rdfd, &wrfd))
{
free(buf);
return 1;
}
rc=_authdaemondo(wrfd, rdfd, buf, callback_func, callback_arg);
free(buf);
if (rc > 0) closePipe();
return rc;
}
/* modelled on auth_getuserinfo() in preauthdaemon.c (but note first
* two args are reversed) */
int auth_pipe_pre(const char *uid, const char *service,
int (*callback)(struct authinfo *, void *),
void *arg)
{
char *buf;
int rdfd, wrfd, rc;
if (disabled_flag)
return -1;
buf=malloc(strlen(service)+strlen(uid)+20);
if (!buf)
return 1;
strcat(strcat(strcat(strcat(strcpy(buf, "PRE . "), service), " "),
uid), "\n");
if (getPipe(&rdfd, &wrfd))
{
free(buf);
return 1;
}
rc=_authdaemondo(wrfd, rdfd, buf, callback, arg);
free(buf);
if (rc > 0) closePipe();
return (rc);
}
/* modelled on auth_passwd() in authmoduser2.c */
int auth_pipe_chgpwd(const char *service,
const char *uid,
const char *opwd,
const char *npwd)
{
char *buf;
int rdfd, wrfd, rc;
if (disabled_flag)
return -1;
buf=malloc(strlen(service)+strlen(uid)+strlen(opwd)+
strlen(npwd)+20);
if (!buf)
return 1;
sprintf(buf, "PASSWD %s\t%s\t%s\t%s\n",
service, uid, opwd, npwd);
if (getPipe(&rdfd, &wrfd))
{
free(buf);
return 1;
}
rc = _authdaemondopasswd(wrfd, rdfd, buf, strlen(buf));
free(buf);
if (rc > 0) closePipe();
return (rc);
}
void auth_pipe_idle()
{
/* don't need to do anything when idle */
}
void auth_pipe_close()
{
closePipe();
}
void auth_pipe_enumerate(void(*cb_func)(const char *name,
uid_t uid,
gid_t gid,
const char *homedir,
const char *maildir,
const char *options,
void *void_arg),
void *void_arg)
{
int rdfd, wrfd, rc;
if (disabled_flag)
return;
if (getPipe(&rdfd, &wrfd))
return;
rc = _auth_enumerate(wrfd, rdfd, cb_func, void_arg);
if (rc > 0) closePipe();
}
static struct authstaticinfo authpipe_info={
"authpipe",
auth_pipe,
auth_pipe_pre,
auth_pipe_close,
auth_pipe_chgpwd,
auth_pipe_idle,
auth_pipe_enumerate};
struct authstaticinfo *courier_authpipe_init()
{
disabled_flag=access(PIPE_PROGRAM, X_OK);
if (disabled_flag)
{
DPRINTF("authpipe: disabled: failed to stat pipe program %s: %s",
PIPE_PROGRAM, strerror(errno));
}
return &authpipe_info;
}
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