248 lines
4.3 KiB
C
248 lines
4.3 KiB
C
/*
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* Copyright (c) 1999-2003, 2006, 2007 Sendmail, Inc. and its suppliers.
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* All rights reserved.
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*
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* By using this file, you agree to the terms and conditions set
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* forth in the LICENSE file which can be found at the top level of
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* the sendmail distribution.
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*
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*/
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#include <sm/gen.h>
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SM_RCSID("@(#)$Id: main.c,v 8.84 2008/09/02 05:37:06 ca Exp $")
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#define _DEFINE 1
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#include "libmilter.h"
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#include <fcntl.h>
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#include <sys/stat.h>
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static smfiDesc_ptr smfi = NULL;
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/*
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** SMFI_REGISTER -- register a filter description
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**
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** Parameters:
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** smfilter -- description of filter to register
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**
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** Returns:
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** MI_SUCCESS/MI_FAILURE
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*/
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int
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smfi_register(smfilter)
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smfiDesc_str smfilter;
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{
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size_t len;
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if (smfi == NULL)
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{
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smfi = (smfiDesc_ptr) malloc(sizeof *smfi);
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if (smfi == NULL)
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return MI_FAILURE;
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}
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(void) memcpy(smfi, &smfilter, sizeof *smfi);
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if (smfilter.xxfi_name == NULL)
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smfilter.xxfi_name = "Unknown";
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len = strlen(smfilter.xxfi_name) + 1;
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smfi->xxfi_name = (char *) malloc(len);
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if (smfi->xxfi_name == NULL)
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return MI_FAILURE;
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(void) sm_strlcpy(smfi->xxfi_name, smfilter.xxfi_name, len);
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/* compare milter version with hard coded version */
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if ((SM_LM_VRS_MAJOR(smfi->xxfi_version) != SM_LM_VRS_MAJOR(SMFI_VERSION) ||
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SM_LM_VRS_MINOR(smfi->xxfi_version) != SM_LM_VRS_MINOR(SMFI_VERSION)) &&
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smfi->xxfi_version != 2 &&
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smfi->xxfi_version != 3 &&
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smfi->xxfi_version != 4)
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{
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/* hard failure for now! */
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smi_log(SMI_LOG_ERR,
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"%s: smfi_register: version mismatch application: %d != milter: %d",
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smfi->xxfi_name, smfi->xxfi_version,
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(int) SMFI_VERSION);
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/* XXX how about smfi? */
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free(smfi->xxfi_name);
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return MI_FAILURE;
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}
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return MI_SUCCESS;
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}
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/*
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** SMFI_STOP -- stop milter
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**
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** Parameters:
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** none.
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**
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** Returns:
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** success.
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*/
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int
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smfi_stop()
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{
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mi_stop_milters(MILTER_STOP);
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return MI_SUCCESS;
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}
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/*
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** Default values for some variables.
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** Most of these can be changed with the functions below.
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*/
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static int dbg = 0;
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static char *conn = NULL;
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static int timeout = MI_TIMEOUT;
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static int backlog = MI_SOMAXCONN;
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/*
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** SMFI_OPENSOCKET -- try the socket setup to make sure we'll be
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** able to start up
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**
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** Parameters:
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** rmsocket -- if true, instructs libmilter to attempt
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** to remove the socket before creating it;
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** only applies for "local:" or "unix:" sockets
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**
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** Return:
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** MI_SUCCESS/MI_FAILURE
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*/
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int
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smfi_opensocket(rmsocket)
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bool rmsocket;
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{
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if (smfi == NULL || conn == NULL)
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return MI_FAILURE;
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return mi_opensocket(conn, backlog, dbg, rmsocket, smfi);
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}
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/*
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** SMFI_SETDBG -- set debug level.
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**
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** Parameters:
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** odbg -- new debug level.
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**
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** Returns:
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** MI_SUCCESS
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*/
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int
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smfi_setdbg(odbg)
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int odbg;
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{
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dbg = odbg;
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return MI_SUCCESS;
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}
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/*
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** SMFI_SETTIMEOUT -- set timeout (for read/write).
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**
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** Parameters:
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** otimeout -- new timeout.
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**
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** Returns:
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** MI_SUCCESS
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*/
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int
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smfi_settimeout(otimeout)
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int otimeout;
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{
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timeout = otimeout;
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return MI_SUCCESS;
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}
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/*
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** SMFI_SETCONN -- set connection information (socket description)
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**
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** Parameters:
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** oconn -- new connection information.
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**
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** Returns:
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** MI_SUCCESS/MI_FAILURE
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*/
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int
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smfi_setconn(oconn)
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char *oconn;
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{
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size_t l;
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if (oconn == NULL || *oconn == '\0')
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return MI_FAILURE;
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l = strlen(oconn) + 1;
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if ((conn = (char *) malloc(l)) == NULL)
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return MI_FAILURE;
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if (sm_strlcpy(conn, oconn, l) >= l)
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return MI_FAILURE;
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return MI_SUCCESS;
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}
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/*
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** SMFI_SETBACKLOG -- set backlog
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**
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** Parameters:
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** obacklog -- new backlog.
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**
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** Returns:
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** MI_SUCCESS/MI_FAILURE
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*/
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int
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smfi_setbacklog(obacklog)
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int obacklog;
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{
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if (obacklog <= 0)
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return MI_FAILURE;
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backlog = obacklog;
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return MI_SUCCESS;
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}
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/*
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** SMFI_MAIN -- setup milter connnection and start listener.
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**
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** Parameters:
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** none.
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**
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** Returns:
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** MI_SUCCESS/MI_FAILURE
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*/
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int
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smfi_main()
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{
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int r;
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(void) signal(SIGPIPE, SIG_IGN);
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if (conn == NULL)
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{
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smi_log(SMI_LOG_FATAL, "%s: missing connection information",
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smfi->xxfi_name);
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return MI_FAILURE;
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}
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(void) atexit(mi_clean_signals);
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if (mi_control_startup(smfi->xxfi_name) != MI_SUCCESS)
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{
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smi_log(SMI_LOG_FATAL,
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"%s: Couldn't start signal thread",
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smfi->xxfi_name);
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return MI_FAILURE;
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}
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r = MI_MONITOR_INIT();
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/* Startup the listener */
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if (mi_listener(conn, dbg, smfi, timeout, backlog) != MI_SUCCESS)
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r = MI_FAILURE;
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return r;
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}
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