Mercurial > dovecot > original-hg > dovecot-1.2

annotate src/imap/main.c @ 5148:7f2c39d7a2cc HEAD

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module_dir_load() doesn't call init() functions anymore. Added a new module_dir_init() which does it. This way imap/pop3 can load the modules before chrooting and initialize them after.
author Timo Sirainen <tss@iki.fi>
date Fri, 16 Feb 2007 15:12:05 +0200
parents cbc8f65d887b
children a7627141ec7f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /* Copyright (C) 2002-2003 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 "network.h"
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6 #include "ostream.h"
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7 #include "str.h"
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8 #include "lib-signals.h"
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9 #include "restrict-access.h"
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10 #include "fd-close-on-exec.h"
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11 #include "process-title.h"
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12 #include "randgen.h"
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13 #include "module-dir.h"
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14 #include "dict-client.h"
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15 #include "mail-storage.h"
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16 #include "commands.h"
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17 #include "namespace.h"
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18 #include "imap-thread.h"
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19
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20 #include <stdio.h>
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21 #include <stdlib.h>
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22 #include <unistd.h>
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23 #include <syslog.h>
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24
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25 #define IS_STANDALONE() \
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26 (getenv("LOGGED_IN") == NULL && getenv("IMAPLOGINTAG") == NULL)
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28 struct client_workaround_list {
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29 const char *name;
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30 enum client_workarounds num;
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31 };
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32
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33 struct client_workaround_list client_workaround_list[] = {
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34 { "delay-newmail", WORKAROUND_DELAY_NEWMAIL },
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35 { "outlook-idle", WORKAROUND_OUTLOOK_IDLE },
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36 { "netscape-eoh", WORKAROUND_NETSCAPE_EOH },
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37 { "tb-extra-mailbox-sep", WORKAROUND_TB_EXTRA_MAILBOX_SEP },
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38 { NULL, 0 }
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39 };
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40
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41 struct ioloop *ioloop;
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42 unsigned int max_keyword_length;
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43 unsigned int imap_max_line_length;
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44 enum client_workarounds client_workarounds = 0;
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45 static struct io *log_io = NULL;
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46
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47 static struct module *modules = NULL;
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48 static char log_prefix[128]; /* syslog() needs this to be permanent */
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49 static pool_t namespace_pool;
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50
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51 void (*hook_client_created)(struct client **client) = NULL;
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52
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53 string_t *capability_string;
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54
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55 static void sig_die(int signo, void *context __attr_unused__)
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56 {
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57 /* warn about being killed because of some signal, except SIGINT (^C)
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58 which is too common at least while testing :) */
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59 if (signo != SIGINT)
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60 i_warning("Killed with signal %d", signo);
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61 io_loop_stop(ioloop);
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62 }
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63
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64 static void log_error_callback(void *context __attr_unused__)
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65 {
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66 io_loop_stop(ioloop);
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67 }
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68
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69 static void parse_workarounds(void)
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70 {
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71 struct client_workaround_list *list;
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72 const char *env, *const *str;
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73
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74 env = getenv("IMAP_CLIENT_WORKAROUNDS");
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75 if (env == NULL)
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76 return;
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77
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78 for (str = t_strsplit_spaces(env, " ,"); *str != NULL; str++) {
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79 list = client_workaround_list;
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80 for (; list->name != NULL; list++) {
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81 if (strcasecmp(*str, list->name) == 0) {
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82 client_workarounds |= list->num;
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83 break;
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84 }
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85 }
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86 if (list->name == NULL)
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87 i_fatal("Unknown client workaround: %s", *str);
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88 }
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89 }
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90
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91 static void open_logfile(void)
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92 {
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93 const char *user;
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94
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95 if (getenv("LOG_TO_MASTER") != NULL) {
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96 i_set_failure_internal();
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97 return;
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98 }
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99
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100 user = getenv("USER");
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101 if (user == NULL) {
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102 if (IS_STANDALONE())
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103 user = getlogin();
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104 if (user == NULL)
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105 user = "??";
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106 }
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107 if (strlen(user) >= sizeof(log_prefix)-6) {
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108 /* quite a long user name, cut it */
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109 user = t_strndup(user, sizeof(log_prefix)-6-2);
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110 user = t_strconcat(user, "..", NULL);
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111 }
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112 i_snprintf(log_prefix, sizeof(log_prefix), "imap(%s)", user);
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113
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114 if (getenv("USE_SYSLOG") != NULL) {
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115 const char *env = getenv("SYSLOG_FACILITY");
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116 i_set_failure_syslog(log_prefix, LOG_NDELAY,
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117 env == NULL ? LOG_MAIL : atoi(env));
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118 } else {
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119 /* log to file or stderr */
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120 i_set_failure_file(getenv("LOGFILE"), log_prefix);
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121 }
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122
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123 if (getenv("INFOLOGFILE") != NULL)
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124 i_set_info_file(getenv("INFOLOGFILE"));
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125
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126 i_set_failure_timestamp_format(getenv("LOGSTAMP"));
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127 }
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128
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129 static void drop_privileges(void)
86224ff16bf6 Drop root privileges earlier. Close syslog more later in imap-master when
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diff changeset
130 {
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diff changeset
131 /* Log file or syslog opening probably requires roots */
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diff changeset
132 open_logfile();
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diff changeset
133
1597
9f503b7851ab Moved all dotlocking code to lib/. Also we now use temp file + link() rather
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diff changeset
134 /* Most likely needed. Have to open /dev/urandom before possible
9f503b7851ab Moved all dotlocking code to lib/. Also we now use temp file + link() rather
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diff changeset
135 chrooting. */
9f503b7851ab Moved all dotlocking code to lib/. Also we now use temp file + link() rather
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parents: 1591
diff changeset
136 random_init();
9f503b7851ab Moved all dotlocking code to lib/. Also we now use temp file + link() rather
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diff changeset
137
5148
7f2c39d7a2cc module_dir_load() doesn't call init() functions anymore. Added a new
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diff changeset
138 /* Load the plugins before chrooting. Their init() is called later. */
7f2c39d7a2cc module_dir_load() doesn't call init() functions anymore. Added a new
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diff changeset
139 if (getenv("MAIL_PLUGINS") != NULL) {
7f2c39d7a2cc module_dir_load() doesn't call init() functions anymore. Added a new
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140 const char *plugin_dir = getenv("MAIL_PLUGIN_DIR");
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diff changeset
141
7f2c39d7a2cc module_dir_load() doesn't call init() functions anymore. Added a new
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diff changeset
142 if (plugin_dir == NULL)
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diff changeset
143 plugin_dir = MODULEDIR"/imap";
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diff changeset
144 modules = module_dir_load(plugin_dir, getenv("MAIL_PLUGINS"),
7f2c39d7a2cc module_dir_load() doesn't call init() functions anymore. Added a new
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diff changeset
145 TRUE);
7f2c39d7a2cc module_dir_load() doesn't call init() functions anymore. Added a new
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diff changeset
146 }
7f2c39d7a2cc module_dir_load() doesn't call init() functions anymore. Added a new
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diff changeset
147
801
86224ff16bf6 Drop root privileges earlier. Close syslog more later in imap-master when
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diff changeset
148 restrict_access_by_env(!IS_STANDALONE());
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diff changeset
149 }
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diff changeset
150
86224ff16bf6 Drop root privileges earlier. Close syslog more later in imap-master when
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diff changeset
151 static void main_init(void)
0
3b1985cbc908 Initial revision
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parents:
diff changeset
152 {
903
fd8888f6f037 Naming style changes, finally got tired of most of the typedefs. Also the
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diff changeset
153 struct client *client;
1654
31c4bb26a1e9 Getting ready for namespaces. LIST is still broken with them.
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diff changeset
154 const char *user, *str;
550
3a83b05a0be3 --with-rawlog: Build support for logging traffic of user sessions. If
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parents: 410
diff changeset
155
4553
d1c0514754d5 Require that master's version number matches the child's, unless
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diff changeset
156 str = getenv("DOVECOT_VERSION");
d1c0514754d5 Require that master's version number matches the child's, unless
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diff changeset
157 if (str != NULL && strcmp(str, PACKAGE_VERSION) != 0) {
d1c0514754d5 Require that master's version number matches the child's, unless
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diff changeset
158 i_fatal("Dovecot version mismatch: "
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diff changeset
159 "Master is v%s, imap is v"PACKAGE_VERSION" "
d1c0514754d5 Require that master's version number matches the child's, unless
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parents: 4517
diff changeset
160 "(if you don't care, set version_ignore=yes)", str);
d1c0514754d5 Require that master's version number matches the child's, unless
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parents: 4517
diff changeset
161 }
d1c0514754d5 Require that master's version number matches the child's, unless
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diff changeset
162
3620
3360cc019737 Implemented new signal handling framework, which makes handling signals much
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diff changeset
163 lib_signals_init();
3360cc019737 Implemented new signal handling framework, which makes handling signals much
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diff changeset
164 lib_signals_set_handler(SIGINT, TRUE, sig_die, NULL);
3360cc019737 Implemented new signal handling framework, which makes handling signals much
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parents: 3505
diff changeset
165 lib_signals_set_handler(SIGTERM, TRUE, sig_die, NULL);
4903
204d7edc7cdc Added context parameter type safety checks for most callback APIs.
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parents: 4848
diff changeset
166 lib_signals_ignore(SIGPIPE, TRUE);
204d7edc7cdc Added context parameter type safety checks for most callback APIs.
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diff changeset
167 lib_signals_ignore(SIGALRM, FALSE);
801
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diff changeset
168
1193
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diff changeset
169 user = getenv("USER");
206190c8c66f Use getlogin() alternatively if USER environment isn't found.
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diff changeset
170 if (user == NULL) {
1194
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diff changeset
171 if (IS_STANDALONE())
1193
206190c8c66f Use getlogin() alternatively if USER environment isn't found.
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diff changeset
172 user = getlogin();
206190c8c66f Use getlogin() alternatively if USER environment isn't found.
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diff changeset
173 if (user == NULL)
206190c8c66f Use getlogin() alternatively if USER environment isn't found.
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diff changeset
174 i_fatal("USER environment missing");
206190c8c66f Use getlogin() alternatively if USER environment isn't found.
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parents: 1172
diff changeset
175 }
748
474319868e82 Sanity check to make sure USER environment exists.
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diff changeset
176
3034
de1b904c4df2 Print effective uid/gid when mail_debug is enabled.
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parents: 2873
diff changeset
177 if (getenv("DEBUG") != NULL) {
5133
cbc8f65d887b mail_debug=yes: Log also home directory.
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diff changeset
178 const char *home;
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diff changeset
179
cbc8f65d887b mail_debug=yes: Log also home directory.
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diff changeset
180 home = getenv("HOME");
cbc8f65d887b mail_debug=yes: Log also home directory.
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diff changeset
181 i_info("Effective uid=%s, gid=%s, home=%s",
cbc8f65d887b mail_debug=yes: Log also home directory.
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parents: 4903
diff changeset
182 dec2str(geteuid()), dec2str(getegid()),
cbc8f65d887b mail_debug=yes: Log also home directory.
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parents: 4903
diff changeset
183 home != NULL ? home : "(none)");
3034
de1b904c4df2 Print effective uid/gid when mail_debug is enabled.
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parents: 2873
diff changeset
184 }
de1b904c4df2 Print effective uid/gid when mail_debug is enabled.
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parents: 2873
diff changeset
185
4165
773c4becceae Added shutdown_clients setting to control if existing imap/pop3 processes
Timo Sirainen <tss@iki.fi>
parents: 4149
diff changeset
186 if (getenv("STDERR_CLOSE_SHUTDOWN") != NULL) {
4149
b10fa8ba01ca When master dies (by closing log file descriptor), kill ourself also.
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parents: 4074
diff changeset
187 /* If master dies, the log fd gets closed and we'll quit */
b10fa8ba01ca When master dies (by closing log file descriptor), kill ourself also.
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diff changeset
188 log_io = io_add(STDERR_FILENO, IO_ERROR,
b10fa8ba01ca When master dies (by closing log file descriptor), kill ourself also.
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parents: 4074
diff changeset
189 log_error_callback, NULL);
b10fa8ba01ca When master dies (by closing log file descriptor), kill ourself also.
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parents: 4074
diff changeset
190 }
b10fa8ba01ca When master dies (by closing log file descriptor), kill ourself also.
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parents: 4074
diff changeset
191
1586
898a95426118 Keep capability in string_t so plugins can modify it.
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parents: 1498
diff changeset
192 capability_string = str_new(default_pool, sizeof(CAPABILITY_STRING)+32);
898a95426118 Keep capability in string_t so plugins can modify it.
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parents: 1498
diff changeset
193 str_append(capability_string, CAPABILITY_STRING);
898a95426118 Keep capability in string_t so plugins can modify it.
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parents: 1498
diff changeset
194
4517
e661182eab75 Berkeley DB dict support is now enabled only when using --with-db configure option.
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parents: 4492
diff changeset
195 dict_driver_register(&dict_driver_client);
1138
340dea0150bf Added client_workarounds setting, with currently one workaround for OE6.
Timo Sirainen <tss@iki.fi>
parents: 1087
diff changeset
196 mail_storage_init();
0
3b1985cbc908 Initial revision
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parents:
diff changeset
197 mail_storage_register_all();
4808
93bc9770f938 Initial code for separation of mailbox accessing and directory layout
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parents: 4553
diff changeset
198 mailbox_list_register_all();
1465
03dd87873a81 Added support for dynamically loadable imap/pop3 modules.
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parents: 1464
diff changeset
199 clients_init();
1464
bd489d13479e Added command_register() and related functions so we can dynamically
Timo Sirainen <tss@iki.fi>
parents: 1351
diff changeset
200 commands_init();
4492
e2cbc10c94f4 THREAD command handling is now done through a hash index file. This speeds
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parents: 4446
diff changeset
201 imap_thread_init();
1465
03dd87873a81 Added support for dynamically loadable imap/pop3 modules.
Timo Sirainen <tss@iki.fi>
parents: 1464
diff changeset
202
5148
7f2c39d7a2cc module_dir_load() doesn't call init() functions anymore. Added a new
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parents: 5133
diff changeset
203 module_dir_init(modules);
0
3b1985cbc908 Initial revision
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parents:
diff changeset
204
4197
c3ded5b815aa If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents: 4183
diff changeset
205 if (getenv("DUMP_CAPABILITY") != NULL) {
c3ded5b815aa If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents: 4183
diff changeset
206 printf("%s\n", str_c(capability_string));
c3ded5b815aa If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents: 4183
diff changeset
207 exit(0);
c3ded5b815aa If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents: 4183
diff changeset
208 }
c3ded5b815aa If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents: 4183
diff changeset
209
c3ded5b815aa If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents: 4183
diff changeset
210 str = getenv("IMAP_CAPABILITY");
c3ded5b815aa If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents: 4183
diff changeset
211 if (str != NULL && *str != '\0') {
c3ded5b815aa If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents: 4183
diff changeset
212 /* Overrides all capabilities */
c3ded5b815aa If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents: 4183
diff changeset
213 str_truncate(capability_string, 0);
c3ded5b815aa If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents: 4183
diff changeset
214 str_append(capability_string, str);
c3ded5b815aa If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents: 4183
diff changeset
215 }
c3ded5b815aa If we have plugins set and imap_capability unset, figure out the IMAP
Timo Sirainen <tss@iki.fi>
parents: 4183
diff changeset
216
1591
6eca99b727a0 IMAP parser memory limits are now enforced by bytes per line rather than
Timo Sirainen <tss@iki.fi>
parents: 1586
diff changeset
217 str = getenv("IMAP_MAX_LINE_LENGTH");
6eca99b727a0 IMAP parser memory limits are now enforced by bytes per line rather than
Timo Sirainen <tss@iki.fi>
parents: 1586
diff changeset
218 imap_max_line_length = str != NULL ?
6eca99b727a0 IMAP parser memory limits are now enforced by bytes per line rather than
Timo Sirainen <tss@iki.fi>
parents: 1586
diff changeset
219 (unsigned int)strtoul(str, NULL, 10) :
6eca99b727a0 IMAP parser memory limits are now enforced by bytes per line rather than
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parents: 1586
diff changeset
220 DEFAULT_IMAP_MAX_LINE_LENGTH;
6eca99b727a0 IMAP parser memory limits are now enforced by bytes per line rather than
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parents: 1586
diff changeset
221
1959
50e24ce4f9c3 and a few more custom flag -> keyword changes
Timo Sirainen <tss@iki.fi>
parents: 1958
diff changeset
222 str = getenv("MAIL_MAX_KEYWORD_LENGTH");
1958
4dec6a3d79fd s/custom flags/keywords/
Timo Sirainen <tss@iki.fi>
parents: 1917
diff changeset
223 max_keyword_length = str != NULL ?
1168
03f1455664d7 Added setting to limit length of custom flag names.
Timo Sirainen <tss@iki.fi>
parents: 1138
diff changeset
224 (unsigned int)strtoul(str, NULL, 10) :
1958
4dec6a3d79fd s/custom flags/keywords/
Timo Sirainen <tss@iki.fi>
parents: 1917
diff changeset
225 DEFAULT_MAX_KEYWORD_LENGTH;
1168
03f1455664d7 Added setting to limit length of custom flag names.
Timo Sirainen <tss@iki.fi>
parents: 1138
diff changeset
226
2316
1c1ed4494aa4 Split client_workarounds to imap_ and pop3_ ones. Added outlook-no-nuls POP3
Timo Sirainen <tss@iki.fi>
parents: 2235
diff changeset
227 parse_workarounds();
1c1ed4494aa4 Split client_workarounds to imap_ and pop3_ ones. Added outlook-no-nuls POP3
Timo Sirainen <tss@iki.fi>
parents: 2235
diff changeset
228
1654
31c4bb26a1e9 Getting ready for namespaces. LIST is still broken with them.
Timo Sirainen <tss@iki.fi>
parents: 1652
diff changeset
229 namespace_pool = pool_alloconly_create("namespaces", 1024);
1694
0fae24674a9a Separated rawlog into it's own binary.
Timo Sirainen <tss@iki.fi>
parents: 1654
diff changeset
230 client = client_create(0, 1, namespace_init(namespace_pool, user));
0
3b1985cbc908 Initial revision
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parents:
diff changeset
231
1498
5a247fb1673c Minor speedup
Timo Sirainen <tss@iki.fi>
parents: 1465
diff changeset
232 o_stream_cork(client->output);
801
86224ff16bf6 Drop root privileges earlier. Close syslog more later in imap-master when
Timo Sirainen <tss@iki.fi>
parents: 765
diff changeset
233 if (IS_STANDALONE()) {
620
d34ee528aa68 Send PREAUTH if we were started without LOGIN_TAG environment (ie. not
Timo Sirainen <tss@iki.fi>
parents: 597
diff changeset
234 client_send_line(client, t_strconcat(
4015
4aeb58dc4f18 PREAUTH banner should show the capability from capability_string in case
Timo Sirainen <tss@iki.fi>
parents: 3879
diff changeset
235 "* PREAUTH [CAPABILITY ",
4aeb58dc4f18 PREAUTH banner should show the capability from capability_string in case
Timo Sirainen <tss@iki.fi>
parents: 3879
diff changeset
236 str_c(capability_string), "] "
1193
206190c8c66f Use getlogin() alternatively if USER environment isn't found.
Timo Sirainen <tss@iki.fi>
parents: 1172
diff changeset
237 "Logged in as ", user, NULL));
1316
02dc0b35af64 Support for mailfront.
Timo Sirainen <tss@iki.fi>
parents: 1194
diff changeset
238 } else if (getenv("IMAPLOGINTAG") != NULL) {
02dc0b35af64 Support for mailfront.
Timo Sirainen <tss@iki.fi>
parents: 1194
diff changeset
239 /* Support for mailfront */
02dc0b35af64 Support for mailfront.
Timo Sirainen <tss@iki.fi>
parents: 1194
diff changeset
240 client_send_line(client, t_strconcat(getenv("IMAPLOGINTAG"),
02dc0b35af64 Support for mailfront.
Timo Sirainen <tss@iki.fi>
parents: 1194
diff changeset
241 " OK Logged in.", NULL));
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
242 }
2421
d141e1bfdd63 We never do blocking reads/writes to network anymore. Changed imap and pop3
Timo Sirainen <tss@iki.fi>
parents: 2316
diff changeset
243 o_stream_uncork(client->output);
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
244 }
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
245
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
246 static void main_deinit(void)
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
247 {
4149
b10fa8ba01ca When master dies (by closing log file descriptor), kill ourself also.
Timo Sirainen <tss@iki.fi>
parents: 4074
diff changeset
248 if (log_io != NULL)
b10fa8ba01ca When master dies (by closing log file descriptor), kill ourself also.
Timo Sirainen <tss@iki.fi>
parents: 4074
diff changeset
249 io_remove(&log_io);
4183
32b5045f8d80 Destroy client connection at deinit before unloading modules.
Timo Sirainen <tss@iki.fi>
parents: 4165
diff changeset
250 clients_deinit();
1465
03dd87873a81 Added support for dynamically loadable imap/pop3 modules.
Timo Sirainen <tss@iki.fi>
parents: 1464
diff changeset
251
4183
32b5045f8d80 Destroy client connection at deinit before unloading modules.
Timo Sirainen <tss@iki.fi>
parents: 4165
diff changeset
252 module_dir_unload(&modules);
4492
e2cbc10c94f4 THREAD command handling is now done through a hash index file. This speeds
Timo Sirainen <tss@iki.fi>
parents: 4446
diff changeset
253 imap_thread_deinit();
1465
03dd87873a81 Added support for dynamically loadable imap/pop3 modules.
Timo Sirainen <tss@iki.fi>
parents: 1464
diff changeset
254 commands_deinit();
1351
6709d9330885 minor memory leak/cleanup fixes
Timo Sirainen <tss@iki.fi>
parents: 1316
diff changeset
255 mail_storage_deinit();
4517
e661182eab75 Berkeley DB dict support is now enabled only when using --with-db configure option.
Timo Sirainen <timo.sirainen@movial.fi>
parents: 4492
diff changeset
256 dict_driver_unregister(&dict_driver_client);
1597
9f503b7851ab Moved all dotlocking code to lib/. Also we now use temp file + link() rather
Timo Sirainen <tss@iki.fi>
parents: 1591
diff changeset
257 random_deinit();
1654
31c4bb26a1e9 Getting ready for namespaces. LIST is still broken with them.
Timo Sirainen <tss@iki.fi>
parents: 1652
diff changeset
258 pool_unref(namespace_pool);
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
259
3879
928229f8b3e6 deinit, unref, destroy, close, free, etc. functions now take a pointer to
Timo Sirainen <tss@iki.fi>
parents: 3789
diff changeset
260 str_free(&capability_string);
1967
b6d900688c55 memory leak fixes
Timo Sirainen <tss@iki.fi>
parents: 1959
diff changeset
261
3620
3360cc019737 Implemented new signal handling framework, which makes handling signals much
Timo Sirainen <tss@iki.fi>
parents: 3505
diff changeset
262 lib_signals_deinit();
0
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
263 closelog();
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
264 }
3b1985cbc908 Initial revision
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
265
801
86224ff16bf6 Drop root privileges earlier. Close syslog more later in imap-master when
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266 int main(int argc __attr_unused__, char *argv[], char *envp[])
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267 {
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268 #ifdef DEBUG
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269 if (getenv("LOGGED_IN") != NULL && getenv("GDB") == NULL)
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270 fd_debug_verify_leaks(3, 1024);
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271 #endif
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272 if (IS_STANDALONE() && getuid() == 0 &&
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273 net_getpeername(1, NULL, NULL) == 0) {
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274 printf("* BAD [ALERT] imap binary must not be started from "
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275 "inetd, use imap-login instead.\n");
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276 return 1;
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277 }
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278
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279 /* NOTE: we start rooted, so keep the code minimal until
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280 restrict_access_by_env() is called */
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281 lib_init();
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282 drop_privileges();
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283
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284 process_title_init(argv, envp);
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285 ioloop = io_loop_create(system_pool);
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286
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287 main_init();
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288 io_loop_run(ioloop);
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289 main_deinit();
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290
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291 io_loop_destroy(&ioloop);
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292 lib_deinit();
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293
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294 return 0;
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295 }