Mercurial > dovecot > original-hg > dovecot-1.2

annotate src/imap/main.c @ 1041:47ecd950a702 HEAD

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some header file cleanups
author Timo Sirainen <tss@iki.fi>
date Mon, 27 Jan 2003 06:23:45 +0200
parents fe49ece0f3ea
children a72bba3f8a55
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1 /* Copyright (C) 2002 Timo Sirainen */
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2
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3 #include "common.h"
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4 #include "ioloop.h"
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5 #include "lib-signals.h"
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6 #include "rawlog.h"
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7 #include "restrict-access.h"
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8 #include "fd-close-on-exec.h"
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9 #include "process-title.h"
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10 #include "mail-storage.h"
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11
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12 #include <stdlib.h>
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13 #include <syslog.h>
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14
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15 #define IS_STANDALONE() \
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16 (getenv("LOGGED_IN") == NULL)
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17
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18 struct ioloop *ioloop;
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19 static char log_prefix[128]; /* syslog() needs this to be permanent */
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20
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21 static void sig_quit(int signo __attr_unused__)
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22 {
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23 io_loop_stop(ioloop);
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24 }
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25
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26 static void open_logfile(void)
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27 {
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28 const char *user;
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29
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30 user = getenv("USER");
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31 if (user == NULL) user = "??";
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32 if (strlen(user) >= sizeof(log_prefix)-6) {
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33 /* quite a long user name, cut it */
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34 user = t_strndup(user, sizeof(log_prefix)-6-2);
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35 user = t_strconcat(user, "..", NULL);
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36 }
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37 i_snprintf(log_prefix, sizeof(log_prefix), "imap(%s)", user);
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38
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39 if (getenv("IMAP_USE_SYSLOG") != NULL)
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40 i_set_failure_syslog(log_prefix, LOG_NDELAY, LOG_MAIL);
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41 else {
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42 /* log to file or stderr */
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43 i_set_failure_file(getenv("IMAP_LOGFILE"), log_prefix);
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44 }
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45
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46 if (getenv("IMAP_INFOLOGFILE") != NULL)
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47 i_set_info_file(getenv("IMAP_INFOLOGFILE"));
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48
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49 i_set_failure_timestamp_format(getenv("IMAP_LOGSTAMP"));
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50 }
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51
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52 static void drop_privileges(void)
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53 {
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54 /* Log file or syslog opening probably requires roots */
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55 open_logfile();
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56
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57 restrict_access_by_env(!IS_STANDALONE());
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58 }
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59
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60 static void main_init(void)
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61 {
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62 struct client *client;
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63 struct mail_storage *storage;
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64 const char *mail;
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65 int hin, hout;
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66
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67 lib_init_signals(sig_quit);
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68
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69 if (getenv("USER") == NULL)
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70 i_fatal("USER environment missing");
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71
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72 hin = 0; hout = 1;
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73 rawlog_open(&hin, &hout);
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74
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75 mail_storage_register_all();
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76 clients_init();
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77
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78 mail = getenv("MAIL");
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79 if (mail == NULL) {
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80 /* support also maildir-specific environment */
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81 mail = getenv("MAILDIR");
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82 if (mail != NULL)
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83 mail = t_strconcat("maildir:", mail, NULL);
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84 }
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85
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86 storage = mail_storage_create_with_data(mail, getenv("USER"));
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87 if (storage == NULL) {
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88 /* failed */
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89 if (mail != NULL && *mail != '\0')
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90 i_fatal("Failed to create storage with data: %s", mail);
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91 else {
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92 const char *home;
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93
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94 home = getenv("HOME");
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95 if (home == NULL) home = "not set";
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96
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97 i_fatal("MAIL environment missing and "
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98 "autodetection failed (home %s)", home);
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99 }
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100 }
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101
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102 client = client_create(hin, hout, storage);
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103
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104 if (IS_STANDALONE()) {
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105 client_send_line(client, t_strconcat(
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106 "* PREAUTH [CAPABILITY "CAPABILITY_STRING"] "
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107 "Logged in as ", getenv("USER"), NULL));
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108 }
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109 }
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110
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111 static void main_deinit(void)
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112 {
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113 /* warn about being killed because of some signal, except SIGINT (^C)
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114 which is too common at least while testing :) */
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115 if (lib_signal_kill != 0 && lib_signal_kill != 2)
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116 i_warning("Killed with signal %d", lib_signal_kill);
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117
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118 clients_deinit();
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119
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120 closelog();
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121 }
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122
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123 int main(int argc __attr_unused__, char *argv[], char *envp[])
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124 {
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125 #ifdef DEBUG
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126 if (getenv("LOGGED_IN") != NULL) {
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127 fd_debug_verify_leaks(3, 1024);
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128 putenv("DISABLE_ALARMHUP=1"); /* annoying when debugging */
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129 }
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130 #endif
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131 /* NOTE: we start rooted, so keep the code minimal until
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132 restrict_access_by_env() is called */
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133 lib_init();
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134 drop_privileges();
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135
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136 process_title_init(argv, envp);
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137 ioloop = io_loop_create(system_pool);
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138
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139 main_init();
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140 io_loop_run(ioloop);
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141 main_deinit();
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142
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143 io_loop_destroy(ioloop);
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144 lib_deinit();
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145
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146 return 0;
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147 }