main.c revision 110560
1/* 2 * Copyright (c) 1999-2002 Sendmail, Inc. and its suppliers. 3 * All rights reserved. 4 * 5 * By using this file, you agree to the terms and conditions set 6 * forth in the LICENSE file which can be found at the top level of 7 * the sendmail distribution. 8 * 9 */ 10 11#include <sm/gen.h> 12SM_RCSID("@(#)$Id: main.c,v 8.64.2.8 2002/12/18 23:13:45 ca Exp $") 13 14#define _DEFINE 1 15#include "libmilter.h" 16#include <fcntl.h> 17#include <sys/stat.h> 18 19 20static smfiDesc_ptr smfi = NULL; 21 22/* 23** SMFI_REGISTER -- register a filter description 24** 25** Parameters: 26** smfilter -- description of filter to register 27** 28** Returns: 29** MI_SUCCESS/MI_FAILURE 30*/ 31 32int 33smfi_register(smfilter) 34 smfiDesc_str smfilter; 35{ 36 size_t len; 37 38 if (smfi == NULL) 39 { 40 smfi = (smfiDesc_ptr) malloc(sizeof *smfi); 41 if (smfi == NULL) 42 return MI_FAILURE; 43 } 44 (void) memcpy(smfi, &smfilter, sizeof *smfi); 45 if (smfilter.xxfi_name == NULL) 46 smfilter.xxfi_name = "Unknown"; 47 48 len = strlen(smfilter.xxfi_name) + 1; 49 smfi->xxfi_name = (char *) malloc(len); 50 if (smfi->xxfi_name == NULL) 51 return MI_FAILURE; 52 (void) sm_strlcpy(smfi->xxfi_name, smfilter.xxfi_name, len); 53 54 /* compare milter version with hard coded version */ 55 if (smfi->xxfi_version != SMFI_VERSION) 56 { 57 /* hard failure for now! */ 58 smi_log(SMI_LOG_ERR, 59 "%s: smfi_register: version mismatch application: %d != milter: %d", 60 smfi->xxfi_name, smfi->xxfi_version, 61 (int) SMFI_VERSION); 62 63 /* XXX how about smfi? */ 64 free(smfi->xxfi_name); 65 return MI_FAILURE; 66 } 67 68 return MI_SUCCESS; 69} 70 71/* 72** SMFI_STOP -- stop milter 73** 74** Parameters: 75** none. 76** 77** Returns: 78** success. 79*/ 80 81int 82smfi_stop() 83{ 84 mi_stop_milters(MILTER_STOP); 85 return MI_SUCCESS; 86} 87 88/* 89** default values for some variables. 90** Most of these can be changed with the functions below. 91*/ 92 93static int dbg = 0; 94static char *conn = NULL; 95static int timeout = MI_TIMEOUT; 96static int backlog = MI_SOMAXCONN; 97 98#if _FFR_SMFI_OPENSOCKET 99/* 100** SMFI_OPENSOCKET -- try the socket setup to make sure we'll be 101** able to start up 102** 103** Parameters: 104** None. 105** 106** Return: 107** MI_SUCCESS/MI_FAILURE 108*/ 109 110int 111smfi_opensocket() 112{ 113 if (smfi == NULL || conn == NULL) 114 return MI_FAILURE; 115 116 return mi_opensocket(conn, backlog, dbg, smfi); 117} 118#endif /* _FFR_SMFI_OPENSOCKET */ 119 120/* 121** SMFI_SETDBG -- set debug level. 122** 123** Parameters: 124** odbg -- new debug level. 125** 126** Returns: 127** MI_SUCCESS 128*/ 129 130int 131smfi_setdbg(odbg) 132 int odbg; 133{ 134 dbg = odbg; 135 return MI_SUCCESS; 136} 137 138/* 139** SMFI_SETTIMEOUT -- set timeout (for read/write). 140** 141** Parameters: 142** otimeout -- new timeout. 143** 144** Returns: 145** MI_SUCCESS 146*/ 147 148int 149smfi_settimeout(otimeout) 150 int otimeout; 151{ 152 timeout = otimeout; 153 return MI_SUCCESS; 154} 155 156/* 157** SMFI_SETCONN -- set connection information (socket description) 158** 159** Parameters: 160** oconn -- new connection information. 161** 162** Returns: 163** MI_SUCCESS/MI_FAILURE 164*/ 165 166int 167smfi_setconn(oconn) 168 char *oconn; 169{ 170 size_t l; 171 172 if (oconn == NULL || *oconn == '\0') 173 return MI_FAILURE; 174 l = strlen(oconn) + 1; 175 if ((conn = (char *) malloc(l)) == NULL) 176 return MI_FAILURE; 177 if (sm_strlcpy(conn, oconn, l) >= l) 178 return MI_FAILURE; 179 return MI_SUCCESS; 180} 181 182/* 183** SMFI_SETBACKLOG -- set backlog 184** 185** Parameters: 186** obacklog -- new backlog. 187** 188** Returns: 189** MI_SUCCESS/MI_FAILURE 190*/ 191 192int 193smfi_setbacklog(obacklog) 194 int obacklog; 195{ 196 if (obacklog <= 0) 197 return MI_FAILURE; 198 backlog = obacklog; 199 return MI_SUCCESS; 200} 201 202 203/* 204** SMFI_MAIN -- setup milter connnection and start listener. 205** 206** Parameters: 207** none. 208** 209** Returns: 210** MI_SUCCESS/MI_FAILURE 211*/ 212 213int 214smfi_main() 215{ 216 int r; 217 218 (void) signal(SIGPIPE, SIG_IGN); 219 if (conn == NULL) 220 { 221 smi_log(SMI_LOG_FATAL, "%s: missing connection information", 222 smfi->xxfi_name); 223 return MI_FAILURE; 224 } 225 226 (void) atexit(mi_clean_signals); 227 if (mi_control_startup(smfi->xxfi_name) != MI_SUCCESS) 228 { 229 smi_log(SMI_LOG_FATAL, 230 "%s: Couldn't start signal thread", 231 smfi->xxfi_name); 232 return MI_FAILURE; 233 } 234 r = MI_SUCCESS; 235 236 /* Startup the listener */ 237 if (mi_listener(conn, dbg, smfi, timeout, backlog) != MI_SUCCESS) 238 r = MI_FAILURE; 239 return r; 240} 241 242