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1 /* MasqMail
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2 Copyright (C) 1999-2001 Oliver Kurth
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3
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4 This program is free software; you can redistribute it and/or modify
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5 it under the terms of the GNU General Public License as published by
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6 the Free Software Foundation; either version 2 of the License, or
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7 (at your option) any later version.
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8
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9 This program is distributed in the hope that it will be useful,
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 GNU General Public License for more details.
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13
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14 You should have received a copy of the GNU General Public License
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15 along with this program; if not, write to the Free Software
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16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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17 */
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18
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19 #include <stdio.h>
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20 #include <errno.h>
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21 #include <stdlib.h>
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22 #include <string.h>
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23 #include <unistd.h>
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24 #include <sys/types.h>
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25 #include <sys/socket.h>
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26 #include <sys/time.h>
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27 #include <netinet/in.h>
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28 #include <netdb.h>
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29 #include <syslog.h>
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30 #include <signal.h>
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31
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32 #include <glib.h>
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33
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34 #include "masqmail.h"
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35
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36 /* mutually exclusive modes. Note that there is neither a 'get' mode
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37 nor a 'queue daemon' mode. These, as well as the distinction beween
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38 the two (non exclusive) daemon (queue and listen) modes are handled
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39 by flags.*/
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40 typedef enum _mta_mode {
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41 MODE_ACCEPT = 0, /* accept message on stdin */
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42 MODE_DAEMON, /* run as daemon */
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43 MODE_RUNQUEUE, /* single queue run, online or offline */
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44 MODE_GET_DAEMON, /* run as get (retrieve) daemon */
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45 MODE_SMTP, /* accept SMTP on stdin */
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46 MODE_LIST, /* list queue */
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47 MODE_MCMD, /* do queue manipulation */
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48 MODE_VERSION, /* show version */
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49 MODE_BI, /* fake ;-) */
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50 MODE_NONE /* to prevent default MODE_ACCEPT */
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51 } mta_mode;
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52
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53 char *pidfile = NULL;
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54 volatile int sigterm_in_progress = 0;
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55
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56 static void
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57 sigterm_handler(int sig)
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58 {
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59 if (sigterm_in_progress)
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60 raise(sig);
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61 sigterm_in_progress = 1;
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62
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63 if (pidfile) {
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64 uid_t uid;
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65 uid = seteuid(0);
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66 if (unlink(pidfile) != 0)
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67 logwrite(LOG_WARNING, "could not delete pid file %s: %s\n", pidfile, strerror(errno));
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68 seteuid(uid); /* we exit anyway after this, just to be sure */
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69 }
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70
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71 signal(sig, SIG_DFL);
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72 raise(sig);
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73 }
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74
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75 #ifdef ENABLE_IDENT /* so far used for that only */
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76 static gboolean
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77 is_in_netlist(gchar * host, GList * netlist)
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78 {
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79 guint hostip = inet_addr(host);
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80 struct in_addr addr;
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81
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82 addr.s_addr = hostip;
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83 if (addr.s_addr != INADDR_NONE) {
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84 GList *node;
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85 foreach(netlist, node) {
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86 struct in_addr *net = (struct in_addr *) (node->data);
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87 if ((addr.s_addr & net->s_addr) == net->s_addr)
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88 return TRUE;
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89 }
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90 }
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91 return FALSE;
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92 }
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93 #endif
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94
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95 gchar*
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96 get_optarg(char *argv[], gint argc, gint * argp, gint * pos)
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97 {
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98 if (argv[*argp][*pos])
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99 return &(argv[*argp][*pos]);
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100 else {
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101 if (*argp + 1 < argc) {
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102 if (argv[(*argp) + 1][0] != '-') {
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103 (*argp)++;
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104 *pos = 0;
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105 return &(argv[*argp][*pos]);
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106 }
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107 }
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108 }
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109 return NULL;
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110 }
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111
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112 gchar*
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113 get_progname(gchar * arg0)
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114 {
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115 gchar *p = arg0 + strlen(arg0) - 1;
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116 while (p > arg0) {
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117 if (*p == '/')
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118 return p + 1;
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119 p--;
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120 }
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121 return p;
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122 }
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123
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124 gboolean
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125 write_pidfile(gchar * name)
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126 {
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127 FILE *fptr;
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128
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129 if ((fptr = fopen(name, "wt"))) {
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130 fprintf(fptr, "%d\n", getpid());
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131 fclose(fptr);
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132 pidfile = strdup(name);
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133 return TRUE;
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134 }
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135 logwrite(LOG_WARNING, "could not write pid file: %s\n", strerror(errno));
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136 return FALSE;
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137 }
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138
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139 static void
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140 mode_daemon(gboolean do_listen, gint queue_interval, char *argv[])
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141 {
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142 guint pid;
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143
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144 /* daemon */
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145 if (!conf.run_as_user) {
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146 if ((conf.orig_uid != 0) && (conf.orig_uid != conf.mail_uid)) {
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147 fprintf(stderr, "must be root or %s for daemon.\n", DEF_MAIL_USER);
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148 exit(EXIT_FAILURE);
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149 }
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150 }
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151
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152 if ((pid = fork()) > 0) {
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153 exit(EXIT_SUCCESS);
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154 } else if (pid < 0) {
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155 logwrite(LOG_ALERT, "could not fork!");
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156 exit(EXIT_FAILURE);
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157 }
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158
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159 signal(SIGTERM, sigterm_handler);
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160 write_pidfile(PIDFILEDIR "/masqmail.pid");
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161
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162 conf.do_verbose = FALSE;
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163
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164 fclose(stdin);
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165 fclose(stdout);
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166 fclose(stderr);
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167
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168 listen_port(do_listen ? conf.listen_addresses : NULL, queue_interval, argv);
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169 }
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170
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171 #ifdef ENABLE_POP3
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172 static void
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173 mode_get_daemon(gint get_interval, char *argv[])
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174 {
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175 guint pid;
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176
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177 /* daemon */
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178 if (!conf.run_as_user) {
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179 if ((conf.orig_uid != 0) && (conf.orig_uid != conf.mail_uid)) {
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180 fprintf(stderr, "must be root or %s for daemon.\n", DEF_MAIL_USER);
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181 exit(EXIT_FAILURE);
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182 }
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183 }
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184
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185 if ((pid = fork()) > 0) {
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186 exit(EXIT_SUCCESS);
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187 } else if (pid < 0) {
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188 logwrite(LOG_ALERT, "could not fork!");
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189 exit(EXIT_FAILURE);
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190 }
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191
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192 signal(SIGTERM, sigterm_handler);
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193 write_pidfile(PIDFILEDIR "/masqmail-get.pid");
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194
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195 conf.do_verbose = FALSE;
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196
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197 fclose(stdin);
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198 fclose(stdout);
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199 fclose(stderr);
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200
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201 get_daemon(get_interval, argv);
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202 }
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203 #endif
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204
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205 #ifdef ENABLE_SMTP_SERVER
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206 static void
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207 mode_smtp()
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208 {
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209 /* accept smtp message on stdin */
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210 /* write responses to stderr. */
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211
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212 struct sockaddr_in saddr;
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213 gchar *peername = NULL;
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214 int dummy = sizeof(saddr);
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215
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216 conf.do_verbose = FALSE;
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217
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218 if (!conf.run_as_user) {
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219 seteuid(conf.orig_uid);
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220 setegid(conf.orig_gid);
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221 }
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222
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223 DEBUG(5) debugf("accepting smtp message on stdin\n");
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224
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225 if (getpeername(0, (struct sockaddr *) (&saddr), &dummy) == 0) {
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226 peername = g_strdup(inet_ntoa(saddr.sin_addr));
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227 } else if (errno != ENOTSOCK)
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228 exit(EXIT_FAILURE);
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229
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230 smtp_in(stdin, stderr, peername, NULL);
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231 }
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232 #endif
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233
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234 static void
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235 mode_accept(address * return_path, gchar * full_sender_name, guint accept_flags, char **addresses, int addr_cnt)
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236 {
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237 /* accept message on stdin */
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238 accept_error err;
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239 message *msg = create_message();
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240 gint i;
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241
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242 if (return_path != NULL) {
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243 if ((conf.orig_uid != 0)
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244 && (conf.orig_uid != conf.mail_uid)
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245 && (!is_ingroup(conf.orig_uid, conf.mail_gid))) {
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246 fprintf(stderr, "must be in root, %s or in group %s for setting return path.\n", DEF_MAIL_USER, DEF_MAIL_GROUP);
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247 exit(EXIT_FAILURE);
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248 }
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249 }
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250
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251 if (!conf.run_as_user) {
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252 seteuid(conf.orig_uid);
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253 setegid(conf.orig_gid);
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254 }
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255
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256 DEBUG(5) debugf("accepting message on stdin\n");
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257
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258 msg->received_prot = PROT_LOCAL;
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259 for (i = 0; i < addr_cnt; i++) {
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260 if (addresses[i][0] != '|')
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261 msg->rcpt_list = g_list_append(msg->rcpt_list, create_address_qualified(addresses[i], TRUE, conf.host_name));
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262 else {
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263 logwrite(LOG_ALERT, "no pipe allowed as recipient address: %s\n", addresses[i]);
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264 exit(EXIT_FAILURE);
|
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265 }
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meillo@10
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266 }
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267
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meillo@10
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268 /* -f option */
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269 msg->return_path = return_path;
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270
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meillo@10
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271 /* -F option */
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272 msg->full_sender_name = full_sender_name;
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273
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274 if ((err = accept_message(stdin, msg, accept_flags)) == AERR_OK) {
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275 if (spool_write(msg, TRUE)) {
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276 pid_t pid;
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277 logwrite(LOG_NOTICE, "%s <= %s with %s\n", msg->uid, addr_string(msg->return_path), prot_names[PROT_LOCAL]);
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278
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279 if (!conf.do_queue) {
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280 if ((pid = fork()) == 0) {
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281 conf.do_verbose = FALSE;
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282 fclose(stdin);
|
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283 fclose(stdout);
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meillo@10
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284 fclose(stderr);
|
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285 if (deliver(msg)) {
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286 exit(EXIT_SUCCESS);
|
meillo@10
|
287 } else
|
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288 exit(EXIT_FAILURE);
|
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289 } else if (pid < 0) {
|
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290 logwrite(LOG_ALERT, "could not fork for delivery, id = %s", msg->uid);
|
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|
291 }
|
meillo@10
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292 }
|
meillo@10
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293 } else {
|
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294 fprintf(stderr, "Could not write spool file\n");
|
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|
295 exit(EXIT_FAILURE);
|
meillo@10
|
296 }
|
meillo@10
|
297 } else {
|
meillo@10
|
298 switch (err) {
|
meillo@10
|
299 case AERR_EOF:
|
meillo@10
|
300 fprintf(stderr, "unexpected EOF.\n");
|
meillo@10
|
301 exit(EXIT_FAILURE);
|
meillo@10
|
302 case AERR_NORCPT:
|
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303 fprintf(stderr, "no recipients.\n");
|
meillo@10
|
304 exit(EXIT_FAILURE);
|
meillo@10
|
305 default:
|
meillo@10
|
306 /* should never happen: */
|
meillo@10
|
307 fprintf(stderr, "Unknown error (%d)\r\n", err);
|
meillo@10
|
308 exit(EXIT_FAILURE);
|
meillo@10
|
309 }
|
meillo@10
|
310 exit(EXIT_FAILURE);
|
meillo@0
|
311 }
|
meillo@0
|
312 }
|
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313
|
meillo@0
|
314 int
|
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315 main(int argc, char *argv[])
|
meillo@0
|
316 {
|
meillo@10
|
317 /* cmd line flags */
|
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|
318 gchar *conf_file = CONF_FILE;
|
meillo@10
|
319 gint arg = 1;
|
meillo@10
|
320 gboolean do_get = FALSE;
|
meillo@10
|
321 gboolean do_get_online = FALSE;
|
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|
322
|
meillo@10
|
323 gboolean do_listen = FALSE;
|
meillo@10
|
324 gboolean do_runq = FALSE;
|
meillo@10
|
325 gboolean do_runq_online = FALSE;
|
meillo@0
|
326
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meillo@10
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327 gboolean do_queue = FALSE;
|
meillo@0
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328
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meillo@10
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329 gboolean do_verbose = FALSE;
|
meillo@10
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330 gint debug_level = -1;
|
meillo@0
|
331
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meillo@10
|
332 mta_mode mta_mode = MODE_ACCEPT;
|
meillo@0
|
333
|
meillo@10
|
334 gint queue_interval = 0;
|
meillo@10
|
335 gint get_interval = 0;
|
meillo@10
|
336 gboolean opt_t = FALSE;
|
meillo@10
|
337 gboolean opt_i = FALSE;
|
meillo@10
|
338 gboolean opt_odb = FALSE;
|
meillo@10
|
339 gboolean opt_oem = FALSE;
|
meillo@10
|
340 gboolean exit_failure = FALSE;
|
meillo@0
|
341
|
meillo@10
|
342 gchar *M_cmd = NULL;
|
meillo@0
|
343
|
meillo@10
|
344 gint exit_code = EXIT_SUCCESS;
|
meillo@10
|
345 gchar *route_name = NULL;
|
meillo@10
|
346 gchar *get_name = NULL;
|
meillo@10
|
347 gchar *progname;
|
meillo@10
|
348 gchar *f_address = NULL;
|
meillo@10
|
349 gchar *full_sender_name = NULL;
|
meillo@10
|
350 address *return_path = NULL; /* may be changed by -f option */
|
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|
351
|
meillo@10
|
352 progname = get_progname(argv[0]);
|
meillo@0
|
353
|
meillo@10
|
354 if (strcmp(progname, "mailq") == 0) {
|
meillo@10
|
355 mta_mode = MODE_LIST;
|
meillo@10
|
356 } else if (strcmp(progname, "mailrm") == 0) {
|
meillo@10
|
357 mta_mode = MODE_MCMD;
|
meillo@10
|
358 M_cmd = "rm";
|
meillo@10
|
359 } else if (strcmp(progname, "runq") == 0) {
|
meillo@10
|
360 mta_mode = MODE_RUNQUEUE;
|
meillo@10
|
361 do_runq = TRUE;
|
meillo@10
|
362 } else if (strcmp(progname, "rmail") == 0) {
|
meillo@10
|
363 mta_mode = MODE_ACCEPT;
|
meillo@10
|
364 opt_i = TRUE;
|
meillo@10
|
365 } else if (strcmp(progname, "smtpd") == 0 || strcmp(progname, "in.smtpd") == 0) {
|
meillo@10
|
366 mta_mode = MODE_SMTP;
|
meillo@10
|
367 }
|
meillo@0
|
368
|
meillo@10
|
369 /* parse cmd line */
|
meillo@10
|
370 while (arg < argc) {
|
meillo@10
|
371 gint pos = 0;
|
meillo@10
|
372 if ((argv[arg][pos] == '-') && (argv[arg][pos + 1] != '-')) {
|
meillo@10
|
373 pos++;
|
meillo@10
|
374 switch (argv[arg][pos++]) {
|
meillo@10
|
375 case 'b':
|
meillo@10
|
376 switch (argv[arg][pos++]) {
|
meillo@10
|
377 case 'd':
|
meillo@10
|
378 do_listen = TRUE;
|
meillo@10
|
379 mta_mode = MODE_DAEMON;
|
meillo@10
|
380 break;
|
meillo@10
|
381 case 'i':
|
meillo@10
|
382 /* ignored */
|
meillo@10
|
383 mta_mode = MODE_BI;
|
meillo@10
|
384 break;
|
meillo@10
|
385 case 's':
|
meillo@10
|
386 mta_mode = MODE_SMTP;
|
meillo@10
|
387 break;
|
meillo@10
|
388 case 'p':
|
meillo@10
|
389 mta_mode = MODE_LIST;
|
meillo@10
|
390 break;
|
meillo@10
|
391 case 'V':
|
meillo@10
|
392 mta_mode = MODE_VERSION;
|
meillo@10
|
393 break;
|
meillo@10
|
394 default:
|
meillo@10
|
395 fprintf(stderr, "unrecognized option '%s'\n", argv[arg]);
|
meillo@10
|
396 exit(EXIT_FAILURE);
|
meillo@10
|
397 }
|
meillo@10
|
398 break;
|
meillo@10
|
399 case 'B':
|
meillo@10
|
400 /* we ignore this and throw the argument away */
|
meillo@10
|
401 get_optarg(argv, argc, &arg, &pos);
|
meillo@10
|
402 break;
|
meillo@10
|
403 case 'C':
|
meillo@10
|
404 if (!(conf_file = get_optarg(argv, argc, &arg, &pos))) {
|
meillo@10
|
405 fprintf(stderr, "-C requires a filename as argument.\n");
|
meillo@10
|
406 exit(EXIT_FAILURE);
|
meillo@10
|
407 }
|
meillo@10
|
408 break;
|
meillo@10
|
409 case 'F':
|
meillo@10
|
410 {
|
meillo@10
|
411 full_sender_name = get_optarg(argv, argc, &arg, &pos);
|
meillo@10
|
412 if (!full_sender_name) {
|
meillo@10
|
413 fprintf(stderr, "-F requires a name as an argument\n");
|
meillo@10
|
414 exit(EXIT_FAILURE);
|
meillo@10
|
415 }
|
meillo@10
|
416 }
|
meillo@10
|
417 break;
|
meillo@10
|
418 case 'd':
|
meillo@10
|
419 if (getuid() == 0) {
|
meillo@10
|
420 char *lvl = get_optarg(argv, argc, &arg, &pos);
|
meillo@10
|
421 if (lvl)
|
meillo@10
|
422 debug_level = atoi(lvl);
|
meillo@10
|
423 else {
|
meillo@10
|
424 fprintf(stderr, "-d requires a number as an argument.\n");
|
meillo@10
|
425 exit(EXIT_FAILURE);
|
meillo@10
|
426 }
|
meillo@10
|
427 } else {
|
meillo@10
|
428 fprintf(stderr, "only root may set the debug level.\n");
|
meillo@10
|
429 exit(EXIT_FAILURE);
|
meillo@10
|
430 }
|
meillo@10
|
431 break;
|
meillo@10
|
432 case 'f':
|
meillo@10
|
433 /* set return path */
|
meillo@10
|
434 {
|
meillo@10
|
435 gchar *address;
|
meillo@10
|
436 address = get_optarg(argv, argc, &arg, &pos);
|
meillo@10
|
437 if (address) {
|
meillo@10
|
438 f_address = g_strdup(address);
|
meillo@10
|
439 } else {
|
meillo@10
|
440 fprintf(stderr, "-f requires an address as an argument\n");
|
meillo@10
|
441 exit(EXIT_FAILURE);
|
meillo@10
|
442 }
|
meillo@10
|
443 }
|
meillo@10
|
444 break;
|
meillo@10
|
445 case 'g':
|
meillo@10
|
446 do_get = TRUE;
|
meillo@10
|
447 if (!mta_mode)
|
meillo@10
|
448 mta_mode = MODE_NONE; /* to prevent default MODE_ACCEPT */
|
meillo@10
|
449 if (argv[arg][pos] == 'o') {
|
meillo@10
|
450 pos++;
|
meillo@10
|
451 do_get_online = TRUE;
|
meillo@10
|
452 /* can be NULL, then we use online detection method */
|
meillo@10
|
453 route_name = get_optarg(argv, argc, &arg, &pos);
|
meillo@10
|
454
|
meillo@10
|
455 if (route_name != NULL) {
|
meillo@10
|
456 if (isdigit(route_name[0])) {
|
meillo@10
|
457 get_interval = time_interval(route_name, &pos);
|
meillo@10
|
458 route_name = get_optarg(argv, argc, &arg, &pos);
|
meillo@10
|
459 mta_mode = MODE_GET_DAEMON;
|
meillo@10
|
460 do_get = FALSE;
|
meillo@10
|
461 }
|
meillo@10
|
462 }
|
meillo@10
|
463 } else {
|
meillo@10
|
464 if ((optarg = get_optarg(argv, argc, &arg, &pos))) {
|
meillo@10
|
465 get_name = get_optarg(argv, argc, &arg, &pos);
|
meillo@10
|
466 }
|
meillo@10
|
467 }
|
meillo@10
|
468 break;
|
meillo@10
|
469 case 'i':
|
meillo@10
|
470 if (argv[arg][pos] == 0) {
|
meillo@10
|
471 opt_i = TRUE;
|
meillo@10
|
472 exit_failure = FALSE; /* may override -oem */
|
meillo@10
|
473 } else {
|
meillo@10
|
474 fprintf(stderr, "unrecognized option '%s'\n", argv[arg]);
|
meillo@10
|
475 exit(EXIT_FAILURE);
|
meillo@10
|
476 }
|
meillo@10
|
477 break;
|
meillo@10
|
478 case 'M':
|
meillo@10
|
479 {
|
meillo@10
|
480 mta_mode = MODE_MCMD;
|
meillo@10
|
481 M_cmd = g_strdup(&(argv[arg][pos]));
|
meillo@10
|
482 }
|
meillo@10
|
483 break;
|
meillo@10
|
484 case 'o':
|
meillo@10
|
485 switch (argv[arg][pos++]) {
|
meillo@10
|
486 case 'e':
|
meillo@10
|
487 if (argv[arg][pos++] == 'm') /* -oem */
|
meillo@10
|
488 if (!opt_i)
|
meillo@10
|
489 exit_failure = TRUE;
|
meillo@10
|
490 opt_oem = TRUE;
|
meillo@10
|
491 break;
|
meillo@10
|
492 case 'd':
|
meillo@10
|
493 if (argv[arg][pos] == 'b') /* -odb */
|
meillo@10
|
494 opt_odb = TRUE;
|
meillo@10
|
495 else if (argv[arg][pos] == 'q') /* -odq */
|
meillo@10
|
496 do_queue = TRUE;
|
meillo@10
|
497 break;
|
meillo@10
|
498 case 'i':
|
meillo@10
|
499 opt_i = TRUE;
|
meillo@10
|
500 exit_failure = FALSE; /* may override -oem */
|
meillo@10
|
501 break;
|
meillo@10
|
502 }
|
meillo@10
|
503 break;
|
meillo@10
|
504
|
meillo@10
|
505 case 'q':
|
meillo@10
|
506 {
|
meillo@10
|
507 gchar *optarg;
|
meillo@10
|
508
|
meillo@10
|
509 do_runq = TRUE;
|
meillo@10
|
510 mta_mode = MODE_RUNQUEUE;
|
meillo@10
|
511 if (argv[arg][pos] == 'o') {
|
meillo@10
|
512 pos++;
|
meillo@10
|
513 do_runq = FALSE;
|
meillo@10
|
514 do_runq_online = TRUE;
|
meillo@10
|
515 /* can be NULL, then we use online detection method */
|
meillo@10
|
516 route_name = get_optarg(argv, argc, &arg, &pos);
|
meillo@10
|
517 } else
|
meillo@10
|
518 if ((optarg = get_optarg(argv, argc, &arg, &pos))) {
|
meillo@10
|
519 mta_mode = MODE_DAEMON;
|
meillo@10
|
520 queue_interval = time_interval(optarg, &pos);
|
meillo@10
|
521 }
|
meillo@10
|
522 }
|
meillo@10
|
523 break;
|
meillo@10
|
524 case 't':
|
meillo@10
|
525 if (argv[arg][pos] == 0) {
|
meillo@10
|
526 opt_t = TRUE;
|
meillo@10
|
527 } else {
|
meillo@10
|
528 fprintf(stderr, "unrecognized option '%s'\n", argv[arg]);
|
meillo@10
|
529 exit(EXIT_FAILURE);
|
meillo@10
|
530 }
|
meillo@10
|
531 break;
|
meillo@10
|
532 case 'v':
|
meillo@10
|
533 do_verbose = TRUE;
|
meillo@10
|
534 break;
|
meillo@10
|
535 default:
|
meillo@10
|
536 fprintf(stderr, "unrecognized option '%s'\n", argv[arg]);
|
meillo@10
|
537 exit(EXIT_FAILURE);
|
meillo@10
|
538 }
|
meillo@10
|
539 } else {
|
meillo@10
|
540 if (argv[arg][pos + 1] == '-') {
|
meillo@10
|
541 if (argv[arg][pos + 2] != '\0') {
|
meillo@10
|
542 fprintf(stderr, "unrecognized option '%s'\n", argv[arg]);
|
meillo@10
|
543 exit(EXIT_FAILURE);
|
meillo@10
|
544 }
|
meillo@10
|
545 arg++;
|
meillo@10
|
546 }
|
meillo@10
|
547 break;
|
meillo@10
|
548 }
|
meillo@10
|
549 arg++;
|
meillo@0
|
550 }
|
meillo@0
|
551
|
meillo@10
|
552 if (mta_mode == MODE_VERSION) {
|
meillo@12
|
553 gchar *with_resolver = "";
|
meillo@12
|
554 gchar *with_smtp_server = "";
|
meillo@12
|
555 gchar *with_pop3 = "";
|
meillo@12
|
556 gchar *with_auth = "";
|
meillo@12
|
557 gchar *with_maildir = "";
|
meillo@12
|
558 gchar *with_ident = "";
|
meillo@12
|
559 gchar *with_mserver = "";
|
meillo@0
|
560
|
meillo@0
|
561 #ifdef ENABLE_RESOLVER
|
meillo@10
|
562 with_resolver = " +resolver";
|
meillo@0
|
563 #endif
|
meillo@0
|
564 #ifdef ENABLE_SMTP_SERVER
|
meillo@10
|
565 with_smtp_server = " +smtp-server";
|
meillo@0
|
566 #endif
|
meillo@0
|
567 #ifdef ENABLE_POP3
|
meillo@10
|
568 with_pop3 = " +pop3";
|
meillo@0
|
569 #endif
|
meillo@0
|
570 #ifdef ENABLE_AUTH
|
meillo@10
|
571 with_auth = " +auth";
|
meillo@0
|
572 #endif
|
meillo@0
|
573 #ifdef ENABLE_MAILDIR
|
meillo@10
|
574 with_maildir = " +maildir";
|
meillo@0
|
575 #endif
|
meillo@0
|
576 #ifdef ENABLE_IDENT
|
meillo@10
|
577 with_ident = " +ident";
|
meillo@0
|
578 #endif
|
meillo@0
|
579 #ifdef ENABLE_MSERVER
|
meillo@10
|
580 with_mserver = " +mserver";
|
meillo@0
|
581 #endif
|
meillo@0
|
582
|
meillo@10
|
583 printf("%s %s%s%s%s%s%s%s%s\n", PACKAGE, VERSION, with_resolver, with_smtp_server,
|
meillo@10
|
584 with_pop3, with_auth, with_maildir, with_ident, with_mserver);
|
meillo@0
|
585
|
meillo@10
|
586 exit(EXIT_SUCCESS);
|
meillo@10
|
587 }
|
meillo@0
|
588
|
meillo@10
|
589 /* initialize random generator */
|
meillo@10
|
590 srand(time(NULL));
|
meillo@10
|
591 /* ignore SIGPIPE signal */
|
meillo@10
|
592 signal(SIGPIPE, SIG_IGN);
|
meillo@0
|
593
|
meillo@10
|
594 /* close all possibly open file descriptors */
|
meillo@10
|
595 {
|
meillo@10
|
596 int i, max_fd = sysconf(_SC_OPEN_MAX);
|
meillo@0
|
597
|
meillo@10
|
598 if (max_fd <= 0)
|
meillo@10
|
599 max_fd = 64;
|
meillo@10
|
600 for (i = 3; i < max_fd; i++)
|
meillo@10
|
601 close(i);
|
meillo@10
|
602 }
|
meillo@0
|
603
|
meillo@10
|
604 init_conf();
|
meillo@0
|
605
|
meillo@10
|
606 /* if we are not privileged, and the config file was changed we
|
meillo@10
|
607 implicetely set the the run_as_user flag and give up all
|
meillo@10
|
608 privileges.
|
meillo@0
|
609
|
meillo@10
|
610 So it is possible for a user to run his own daemon without
|
meillo@10
|
611 breaking security.
|
meillo@10
|
612 */
|
meillo@10
|
613 if (strcmp(conf_file, CONF_FILE) != 0) {
|
meillo@10
|
614 if (conf.orig_uid != 0) {
|
meillo@10
|
615 conf.run_as_user = TRUE;
|
meillo@10
|
616 seteuid(conf.orig_uid);
|
meillo@10
|
617 setegid(conf.orig_gid);
|
meillo@10
|
618 setuid(conf.orig_uid);
|
meillo@10
|
619 setgid(conf.orig_gid);
|
meillo@10
|
620 }
|
meillo@10
|
621 }
|
meillo@0
|
622
|
meillo@10
|
623 read_conf(conf_file);
|
meillo@0
|
624
|
meillo@10
|
625 if (do_queue)
|
meillo@10
|
626 conf.do_queue = TRUE;
|
meillo@10
|
627 if (do_verbose)
|
meillo@10
|
628 conf.do_verbose = TRUE;
|
meillo@10
|
629 if (debug_level >= 0) /* if >= 0, it was given by argument */
|
meillo@10
|
630 conf.debug_level = debug_level;
|
meillo@0
|
631
|
meillo@10
|
632 chdir("/");
|
meillo@0
|
633
|
meillo@10
|
634 if (!conf.run_as_user) {
|
meillo@10
|
635 if (setgid(0) != 0) {
|
meillo@10
|
636 fprintf(stderr, "could not set gid to 0. Is the setuid bit set? : %s\n", strerror(errno));
|
meillo@10
|
637 exit(EXIT_FAILURE);
|
meillo@10
|
638 }
|
meillo@10
|
639 if (setuid(0) != 0) {
|
meillo@10
|
640 fprintf(stderr, "could not gain root privileges. Is the setuid bit set? : %s\n", strerror(errno));
|
meillo@10
|
641 exit(EXIT_FAILURE);
|
meillo@10
|
642 }
|
meillo@10
|
643 }
|
meillo@0
|
644
|
meillo@10
|
645 if (!logopen()) {
|
meillo@10
|
646 fprintf(stderr, "could not open log file\n");
|
meillo@10
|
647 exit(EXIT_FAILURE);
|
meillo@10
|
648 }
|
meillo@0
|
649
|
meillo@10
|
650 DEBUG(1) debugf("masqmail %s starting\n", VERSION);
|
meillo@0
|
651
|
meillo@10
|
652 DEBUG(5) {
|
meillo@10
|
653 gchar **str = argv;
|
meillo@10
|
654 debugf("args: \n");
|
meillo@10
|
655 while (*str) {
|
meillo@10
|
656 debugf("%s \n", *str);
|
meillo@10
|
657 str++;
|
meillo@10
|
658 }
|
meillo@10
|
659 }
|
meillo@10
|
660 DEBUG(5) debugf("queue_interval = %d\n", queue_interval);
|
meillo@0
|
661
|
meillo@10
|
662 if (f_address) {
|
meillo@10
|
663 return_path = create_address_qualified(f_address, TRUE, conf.host_name);
|
meillo@10
|
664 g_free(f_address);
|
meillo@10
|
665 if (!return_path) {
|
meillo@10
|
666 fprintf(stderr, "invalid RFC821 address: %s\n", f_address);
|
meillo@10
|
667 exit(EXIT_FAILURE);
|
meillo@10
|
668 }
|
meillo@10
|
669 }
|
meillo@10
|
670
|
meillo@10
|
671 if (do_get) {
|
meillo@0
|
672 #ifdef ENABLE_POP3
|
meillo@10
|
673 if ((mta_mode == MODE_NONE) || (mta_mode == MODE_RUNQUEUE)) {
|
meillo@10
|
674 set_identity(conf.orig_uid, "getting mail");
|
meillo@10
|
675 if (do_get_online) {
|
meillo@10
|
676 if (route_name != NULL) {
|
meillo@10
|
677 conf.online_detect = g_strdup("argument");
|
meillo@10
|
678 set_online_name(route_name);
|
meillo@10
|
679 }
|
meillo@10
|
680 get_online();
|
meillo@10
|
681 } else {
|
meillo@10
|
682 if (get_name)
|
meillo@10
|
683 get_from_name(get_name);
|
meillo@10
|
684 else
|
meillo@10
|
685 get_all();
|
meillo@10
|
686 }
|
meillo@10
|
687 } else {
|
meillo@10
|
688 logwrite(LOG_ALERT, "get (-g) only allowed alone or together with queue run (-q)\n");
|
meillo@10
|
689 }
|
meillo@10
|
690 #else
|
meillo@10
|
691 fprintf(stderr, "get (pop) support not compiled in\n");
|
meillo@10
|
692 #endif
|
meillo@10
|
693 }
|
meillo@0
|
694
|
meillo@10
|
695 switch (mta_mode) {
|
meillo@10
|
696 case MODE_DAEMON:
|
meillo@10
|
697 mode_daemon(do_listen, queue_interval, argv);
|
meillo@10
|
698 break;
|
meillo@10
|
699 case MODE_RUNQUEUE:
|
meillo@10
|
700 {
|
meillo@10
|
701 /* queue runs */
|
meillo@10
|
702 set_identity(conf.orig_uid, "queue run");
|
meillo@0
|
703
|
meillo@10
|
704 if (do_runq)
|
meillo@10
|
705 exit_code = queue_run() ? EXIT_SUCCESS : EXIT_FAILURE;
|
meillo@10
|
706
|
meillo@10
|
707 if (do_runq_online) {
|
meillo@10
|
708 if (route_name != NULL) {
|
meillo@10
|
709 conf.online_detect = g_strdup("argument");
|
meillo@10
|
710 set_online_name(route_name);
|
meillo@10
|
711 }
|
meillo@10
|
712 exit_code =
|
meillo@10
|
713 queue_run_online() ? EXIT_SUCCESS : EXIT_FAILURE;
|
meillo@10
|
714 }
|
meillo@10
|
715 }
|
meillo@10
|
716 break;
|
meillo@10
|
717 case MODE_GET_DAEMON:
|
meillo@10
|
718 #ifdef ENABLE_POP3
|
meillo@10
|
719 if (route_name != NULL) {
|
meillo@10
|
720 conf.online_detect = g_strdup("argument");
|
meillo@10
|
721 set_online_name(route_name);
|
meillo@10
|
722 }
|
meillo@10
|
723 mode_get_daemon(get_interval, argv);
|
meillo@10
|
724 #endif
|
meillo@10
|
725 break;
|
meillo@10
|
726
|
meillo@10
|
727 case MODE_SMTP:
|
meillo@10
|
728 #ifdef ENABLE_SMTP_SERVER
|
meillo@10
|
729 mode_smtp();
|
meillo@10
|
730 #else
|
meillo@10
|
731 fprintf(stderr, "smtp server support not compiled in\n");
|
meillo@10
|
732 #endif
|
meillo@10
|
733 break;
|
meillo@10
|
734
|
meillo@10
|
735 case MODE_LIST:
|
meillo@10
|
736 queue_list();
|
meillo@10
|
737 break;
|
meillo@10
|
738
|
meillo@10
|
739 case MODE_BI:
|
meillo@10
|
740 exit(EXIT_SUCCESS);
|
meillo@10
|
741 break; /* well... */
|
meillo@10
|
742
|
meillo@10
|
743 case MODE_MCMD:
|
meillo@10
|
744 if (strcmp(M_cmd, "rm") == 0) {
|
meillo@10
|
745 gboolean ok = FALSE;
|
meillo@10
|
746
|
meillo@10
|
747 set_euidgid(conf.mail_uid, conf.mail_gid, NULL, NULL);
|
meillo@10
|
748
|
meillo@10
|
749 if (is_privileged_user(conf.orig_uid)) {
|
meillo@10
|
750 for (; arg < argc; arg++) {
|
meillo@10
|
751 if (queue_delete(argv[arg]))
|
meillo@10
|
752 ok = TRUE;
|
meillo@10
|
753 }
|
meillo@10
|
754 } else {
|
meillo@10
|
755 struct passwd *pw = getpwuid(conf.orig_uid);
|
meillo@10
|
756 if (pw) {
|
meillo@10
|
757 for (; arg < argc; arg++) {
|
meillo@10
|
758 message *msg = msg_spool_read(argv[arg], FALSE);
|
meillo@10
|
759 #ifdef ENABLE_IDENT
|
meillo@10
|
760 if (((msg->received_host == NULL) && (msg->received_prot == PROT_LOCAL))
|
meillo@10
|
761 || is_in_netlist(msg->received_host, conf.ident_trusted_nets)) {
|
meillo@10
|
762 #else
|
meillo@10
|
763 if ((msg->received_host == NULL) && (msg->received_prot == PROT_LOCAL)) {
|
meillo@10
|
764 #endif
|
meillo@10
|
765 if (msg->ident) {
|
meillo@10
|
766 if (strcmp(pw->pw_name, msg->ident) == 0) {
|
meillo@10
|
767 if (queue_delete(argv[arg]))
|
meillo@10
|
768 ok = TRUE;
|
meillo@10
|
769 } else {
|
meillo@10
|
770 fprintf(stderr, "you do not own message id %s\n", argv[arg]);
|
meillo@10
|
771 }
|
meillo@10
|
772 } else
|
meillo@10
|
773 fprintf(stderr, "message %s does not have an ident.\n", argv[arg]);
|
meillo@10
|
774 } else {
|
meillo@10
|
775 fprintf(stderr, "message %s was not received locally or from a trusted network.\n", argv[arg]);
|
meillo@10
|
776 }
|
meillo@10
|
777 }
|
meillo@10
|
778 } else {
|
meillo@10
|
779 fprintf(stderr, "could not find a passwd entry for uid %d: %s\n", conf.orig_uid, strerror(errno));
|
meillo@10
|
780 }
|
meillo@10
|
781 }
|
meillo@10
|
782 exit(ok ? EXIT_SUCCESS : EXIT_FAILURE);
|
meillo@10
|
783 } else {
|
meillo@10
|
784 fprintf(stderr, "unknown command %s\n", M_cmd);
|
meillo@10
|
785 exit(EXIT_FAILURE);
|
meillo@10
|
786 }
|
meillo@10
|
787 break;
|
meillo@10
|
788
|
meillo@10
|
789 case MODE_ACCEPT:
|
meillo@10
|
790 {
|
meillo@10
|
791 guint accept_flags = (opt_t ? ACC_DEL_RCPTS | ACC_DEL_BCC | ACC_RCPT_FROM_HEAD : ACC_HEAD_FROM_RCPT)
|
meillo@10
|
792 | (opt_i ? ACC_NODOT_TERM : ACC_NODOT_RELAX);
|
meillo@10
|
793 mode_accept(return_path, full_sender_name, accept_flags, &(argv[arg]), argc - arg);
|
meillo@10
|
794 exit(exit_failure ? EXIT_FAILURE : EXIT_SUCCESS);
|
meillo@10
|
795 }
|
meillo@10
|
796 break;
|
meillo@10
|
797 case MODE_NONE:
|
meillo@10
|
798 break;
|
meillo@10
|
799 default:
|
meillo@10
|
800 fprintf(stderr, "unknown mode: %d\n", mta_mode);
|
meillo@10
|
801 break;
|
meillo@0
|
802 }
|
meillo@0
|
803
|
meillo@10
|
804 logclose();
|
meillo@0
|
805
|
meillo@10
|
806 exit(exit_code);
|
meillo@0
|
807 }
|