annotate src/core/ngx_syslog.c @ 5922:68f64bc17fa4

Syslog: allowed underscore symbol in tag (ticket #667).
author Vladimir Homutov <vl@nginx.com>
date Thu, 20 Nov 2014 20:02:21 +0300
parents 02c2352d5b01
children a6a2016b8e31
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
5702
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1
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2 /*
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3 * Copyright (C) Nginx, Inc.
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10
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11
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12 #define NGX_SYSLOG_MAX_STR \
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13 NGX_MAX_ERROR_STR + sizeof("<255>Jan 01 00:00:00 ") - 1 \
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14 + (NGX_MAXHOSTNAMELEN - 1) + 1 /* space */ \
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15 + 32 /* tag */ + 2 /* colon, space */
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16
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17
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18 static char *ngx_syslog_parse_args(ngx_conf_t *cf, ngx_syslog_peer_t *peer);
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19 static ngx_int_t ngx_syslog_init_peer(ngx_syslog_peer_t *peer);
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20 static void ngx_syslog_cleanup(void *data);
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21
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22
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23 static char *facilities[] = {
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24 "kern", "user", "mail", "daemon", "auth", "intern", "lpr", "news", "uucp",
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25 "clock", "authpriv", "ftp", "ntp", "audit", "alert", "cron", "local0",
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26 "local1", "local2", "local3", "local4", "local5", "local6", "local7",
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27 NULL
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28 };
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29
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30 /* note 'error/warn' like in nginx.conf, not 'err/warning' */
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31 static char *severities[] = {
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32 "emerg", "alert", "crit", "error", "warn", "notice", "info", "debug", NULL
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33 };
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34
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35 static ngx_log_t ngx_syslog_dummy_log;
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36 static ngx_event_t ngx_syslog_dummy_event;
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37
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38
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39 char *
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40 ngx_syslog_process_conf(ngx_conf_t *cf, ngx_syslog_peer_t *peer)
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41 {
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42 peer->pool = cf->pool;
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43 peer->facility = NGX_CONF_UNSET_UINT;
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44 peer->severity = NGX_CONF_UNSET_UINT;
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45
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46 if (ngx_syslog_parse_args(cf, peer) != NGX_CONF_OK) {
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47 return NGX_CONF_ERROR;
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48 }
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49
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50 if (peer->server.sockaddr == NULL) {
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51 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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52 "no syslog server specified");
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53 return NGX_CONF_ERROR;
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54 }
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55
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56 if (peer->facility == NGX_CONF_UNSET_UINT) {
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57 peer->facility = 23; /* local7 */
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58 }
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59
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60 if (peer->severity == NGX_CONF_UNSET_UINT) {
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61 peer->severity = 6; /* info */
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62 }
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63
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64 if (peer->tag.data == NULL) {
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65 ngx_str_set(&peer->tag, "nginx");
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66 }
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67
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68 peer->conn.fd = (ngx_socket_t) -1;
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69
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70 return NGX_CONF_OK;
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71 }
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72
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73
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74 static char *
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75 ngx_syslog_parse_args(ngx_conf_t *cf, ngx_syslog_peer_t *peer)
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76 {
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77 u_char *p, *comma, c;
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78 size_t len;
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79 ngx_str_t *value;
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80 ngx_url_t u;
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81 ngx_uint_t i;
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82
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83 value = cf->args->elts;
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84
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85 p = value[1].data + sizeof("syslog:") - 1;
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86
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87 for ( ;; ) {
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88 comma = (u_char *) ngx_strchr(p, ',');
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89
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90 if (comma != NULL) {
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91 len = comma - p;
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92 *comma = '\0';
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93
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94 } else {
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95 len = value[1].data + value[1].len - p;
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96 }
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97
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98 if (ngx_strncmp(p, "server=", 7) == 0) {
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99
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100 if (peer->server.sockaddr != NULL) {
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101 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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102 "duplicate syslog \"server\"");
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103 return NGX_CONF_ERROR;
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104 }
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105
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106 ngx_memzero(&u, sizeof(ngx_url_t));
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107
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108 u.url.data = p + 7;
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109 u.url.len = len - 7;
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110 u.default_port = 514;
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111
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112 if (ngx_parse_url(cf->pool, &u) != NGX_OK) {
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113 if (u.err) {
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114 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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115 "%s in syslog server \"%V\"",
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116 u.err, &u.url);
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117 }
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118
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119 return NGX_CONF_ERROR;
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120 }
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121
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122 peer->server = u.addrs[0];
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123
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124 } else if (ngx_strncmp(p, "facility=", 9) == 0) {
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125
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126 if (peer->facility != NGX_CONF_UNSET_UINT) {
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127 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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128 "duplicate syslog \"facility\"");
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129 return NGX_CONF_ERROR;
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130 }
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131
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132 for (i = 0; facilities[i] != NULL; i++) {
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133
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134 if (ngx_strcmp(p + 9, facilities[i]) == 0) {
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135 peer->facility = i;
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136 goto next;
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137 }
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138 }
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139
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140 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
141 "unknown syslog facility \"%s\"", p + 9);
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
142 return NGX_CONF_ERROR;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
143
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
144 } else if (ngx_strncmp(p, "severity=", 9) == 0) {
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
145
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
146 if (peer->severity != NGX_CONF_UNSET_UINT) {
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
147 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
148 "duplicate syslog \"severity\"");
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
149 return NGX_CONF_ERROR;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
150 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
151
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
152 for (i = 0; severities[i] != NULL; i++) {
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
153
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
154 if (ngx_strcmp(p + 9, severities[i]) == 0) {
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
155 peer->severity = i;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
156 goto next;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
157 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
158 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
159
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
160 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
161 "unknown syslog severity \"%s\"", p + 9);
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
162 return NGX_CONF_ERROR;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
163
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
164 } else if (ngx_strncmp(p, "tag=", 4) == 0) {
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
165
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
166 if (peer->tag.data != NULL) {
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
167 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
168 "duplicate syslog \"tag\"");
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
169 return NGX_CONF_ERROR;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
170 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
171
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
172 /*
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
173 * RFC 3164: the TAG is a string of ABNF alphanumeric characters
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
174 * that MUST NOT exceed 32 characters.
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
175 */
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
176 if (len - 4 > 32) {
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
177 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
178 "syslog tag length exceeds 32");
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
179 return NGX_CONF_ERROR;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
180 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
181
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
182 for (i = 4; i < len; i++) {
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
183 c = ngx_tolower(p[i]);
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
184
5922
68f64bc17fa4 Syslog: allowed underscore symbol in tag (ticket #667).
Vladimir Homutov <vl@nginx.com>
parents: 5858
diff changeset
185 if (c < '0' || (c > '9' && c < 'a' && c != '_') || c > 'z') {
5702
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
186 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
187 "syslog \"tag\" only allows "
5922
68f64bc17fa4 Syslog: allowed underscore symbol in tag (ticket #667).
Vladimir Homutov <vl@nginx.com>
parents: 5858
diff changeset
188 "alphanumeric characters "
68f64bc17fa4 Syslog: allowed underscore symbol in tag (ticket #667).
Vladimir Homutov <vl@nginx.com>
parents: 5858
diff changeset
189 "and underscore");
5702
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
190 return NGX_CONF_ERROR;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
191 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
192 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
193
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
194 peer->tag.data = p + 4;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
195 peer->tag.len = len - 4;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
196
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
197 } else {
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
198 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
199 "unknown syslog parameter \"%s\"", p);
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
200 return NGX_CONF_ERROR;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
201 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
202
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
203 next:
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
204
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
205 if (comma == NULL) {
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
206 break;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
207 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
208
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
209 p = comma + 1;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
210 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
211
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
212 return NGX_CONF_OK;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
213 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
214
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
215
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
216 u_char *
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
217 ngx_syslog_add_header(ngx_syslog_peer_t *peer, u_char *buf)
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
218 {
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
219 ngx_uint_t pri;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
220
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
221 pri = peer->facility * 8 + peer->severity;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
222
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
223 return ngx_sprintf(buf, "<%ui>%V %V %V: ", pri, &ngx_cached_syslog_time,
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
224 &ngx_cycle->hostname, &peer->tag);
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
225 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
226
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
227
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
228 void
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
229 ngx_syslog_writer(ngx_log_t *log, ngx_uint_t level, u_char *buf,
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
230 size_t len)
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
231 {
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
232 u_char *p, msg[NGX_SYSLOG_MAX_STR];
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
233 ngx_uint_t head_len;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
234 ngx_syslog_peer_t *peer;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
235
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
236 peer = log->wdata;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
237
5857
2cb5275bf5e7 Syslog: enabled logging of send errors.
Vladimir Homutov <vl@nginx.com>
parents: 5709
diff changeset
238 if (peer->busy) {
5702
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
239 return;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
240 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
241
5857
2cb5275bf5e7 Syslog: enabled logging of send errors.
Vladimir Homutov <vl@nginx.com>
parents: 5709
diff changeset
242 peer->busy = 1;
5702
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
243 peer->severity = level - 1;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
244
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
245 p = ngx_syslog_add_header(peer, msg);
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
246 head_len = p - msg;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
247
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
248 len -= NGX_LINEFEED_SIZE;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
249
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
250 if (len > NGX_SYSLOG_MAX_STR - head_len) {
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
251 len = NGX_SYSLOG_MAX_STR - head_len;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
252 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
253
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
254 p = ngx_snprintf(p, len, "%s", buf);
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
255
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
256 (void) ngx_syslog_send(peer, msg, p - msg);
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
257
5857
2cb5275bf5e7 Syslog: enabled logging of send errors.
Vladimir Homutov <vl@nginx.com>
parents: 5709
diff changeset
258 peer->busy = 0;
5702
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
259 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
260
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
261
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
262 ssize_t
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
263 ngx_syslog_send(ngx_syslog_peer_t *peer, u_char *buf, size_t len)
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
264 {
5858
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
Vladimir Homutov <vl@nginx.com>
parents: 5857
diff changeset
265 ssize_t n;
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
Vladimir Homutov <vl@nginx.com>
parents: 5857
diff changeset
266
5702
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
267 if (peer->conn.fd == (ngx_socket_t) -1) {
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
268 if (ngx_syslog_init_peer(peer) != NGX_OK) {
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
269 return NGX_ERROR;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
270 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
271 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
272
5857
2cb5275bf5e7 Syslog: enabled logging of send errors.
Vladimir Homutov <vl@nginx.com>
parents: 5709
diff changeset
273 /* log syslog socket events with valid log */
2cb5275bf5e7 Syslog: enabled logging of send errors.
Vladimir Homutov <vl@nginx.com>
parents: 5709
diff changeset
274 peer->conn.log = ngx_cycle->log;
2cb5275bf5e7 Syslog: enabled logging of send errors.
Vladimir Homutov <vl@nginx.com>
parents: 5709
diff changeset
275
5702
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
276 if (ngx_send) {
5858
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
Vladimir Homutov <vl@nginx.com>
parents: 5857
diff changeset
277 n = ngx_send(&peer->conn, buf, len);
5702
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
278
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
279 } else {
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
280 /* event module has not yet set ngx_io */
5858
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
Vladimir Homutov <vl@nginx.com>
parents: 5857
diff changeset
281 n = ngx_os_io.send(&peer->conn, buf, len);
5702
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
282 }
5858
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
Vladimir Homutov <vl@nginx.com>
parents: 5857
diff changeset
283
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
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diff changeset
284 #if (NGX_HAVE_UNIX_DOMAIN)
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
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diff changeset
285
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
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parents: 5857
diff changeset
286 if (n == NGX_ERROR && peer->server.sockaddr->sa_family == AF_UNIX) {
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
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parents: 5857
diff changeset
287
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
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parents: 5857
diff changeset
288 if (ngx_close_socket(peer->conn.fd) == -1) {
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
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parents: 5857
diff changeset
289 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_socket_errno,
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
Vladimir Homutov <vl@nginx.com>
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diff changeset
290 ngx_close_socket_n " failed");
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
Vladimir Homutov <vl@nginx.com>
parents: 5857
diff changeset
291 }
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
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parents: 5857
diff changeset
292
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
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diff changeset
293 peer->conn.fd = (ngx_socket_t) -1;
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
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parents: 5857
diff changeset
294 }
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
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diff changeset
295
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
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diff changeset
296 #endif
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
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diff changeset
297
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
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diff changeset
298 return n;
5702
777202558122 Added syslog support for error_log and access_log directives.
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diff changeset
299 }
777202558122 Added syslog support for error_log and access_log directives.
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parents:
diff changeset
300
777202558122 Added syslog support for error_log and access_log directives.
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parents:
diff changeset
301
777202558122 Added syslog support for error_log and access_log directives.
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diff changeset
302 static ngx_int_t
777202558122 Added syslog support for error_log and access_log directives.
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diff changeset
303 ngx_syslog_init_peer(ngx_syslog_peer_t *peer)
777202558122 Added syslog support for error_log and access_log directives.
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diff changeset
304 {
777202558122 Added syslog support for error_log and access_log directives.
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diff changeset
305 ngx_socket_t fd;
777202558122 Added syslog support for error_log and access_log directives.
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parents:
diff changeset
306 ngx_pool_cleanup_t *cln;
777202558122 Added syslog support for error_log and access_log directives.
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diff changeset
307
777202558122 Added syslog support for error_log and access_log directives.
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diff changeset
308 peer->conn.read = &ngx_syslog_dummy_event;
777202558122 Added syslog support for error_log and access_log directives.
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diff changeset
309 peer->conn.write = &ngx_syslog_dummy_event;
777202558122 Added syslog support for error_log and access_log directives.
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diff changeset
310
777202558122 Added syslog support for error_log and access_log directives.
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parents:
diff changeset
311 ngx_syslog_dummy_event.log = &ngx_syslog_dummy_log;
777202558122 Added syslog support for error_log and access_log directives.
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diff changeset
312
777202558122 Added syslog support for error_log and access_log directives.
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diff changeset
313 fd = ngx_socket(peer->server.sockaddr->sa_family, SOCK_DGRAM, 0);
777202558122 Added syslog support for error_log and access_log directives.
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diff changeset
314 if (fd == (ngx_socket_t) -1) {
777202558122 Added syslog support for error_log and access_log directives.
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diff changeset
315 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_socket_errno,
777202558122 Added syslog support for error_log and access_log directives.
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parents:
diff changeset
316 ngx_socket_n " failed");
777202558122 Added syslog support for error_log and access_log directives.
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parents:
diff changeset
317 return NGX_ERROR;
777202558122 Added syslog support for error_log and access_log directives.
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parents:
diff changeset
318 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
319
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
320 if (ngx_nonblocking(fd) == -1) {
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
321 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_socket_errno,
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
322 ngx_nonblocking_n " failed");
5708
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
323 goto failed;
5702
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
324 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
325
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
326 if (connect(fd, peer->server.sockaddr, peer->server.socklen) == -1) {
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
327 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_socket_errno,
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
328 "connect() failed");
5708
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
329 goto failed;
5702
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
330 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
331
5708
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
332 cln = ngx_pool_cleanup_add(peer->pool, 0);
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
333 if (cln == NULL) {
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
334 goto failed;
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
335 }
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
336
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
337 cln->data = peer;
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
338 cln->handler = ngx_syslog_cleanup;
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
339
5702
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
340 peer->conn.fd = fd;
5709
44532046d9d7 Syslog: fixed message sending on win32.
Vladimir Homutov <vl@nginx.com>
parents: 5708
diff changeset
341
44532046d9d7 Syslog: fixed message sending on win32.
Vladimir Homutov <vl@nginx.com>
parents: 5708
diff changeset
342 /* UDP sockets are always ready to write */
44532046d9d7 Syslog: fixed message sending on win32.
Vladimir Homutov <vl@nginx.com>
parents: 5708
diff changeset
343 peer->conn.write->ready = 1;
44532046d9d7 Syslog: fixed message sending on win32.
Vladimir Homutov <vl@nginx.com>
parents: 5708
diff changeset
344
5702
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
345 return NGX_OK;
5708
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
346
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
347 failed:
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
348
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
349 if (ngx_close_socket(fd) == -1) {
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
350 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_socket_errno,
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
351 ngx_close_socket_n " failed");
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
352 }
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
353
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
354 return NGX_ERROR;
5702
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
355 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
356
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
357
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
358 static void
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
359 ngx_syslog_cleanup(void *data)
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
360 {
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
361 ngx_syslog_peer_t *peer = data;
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
362
5857
2cb5275bf5e7 Syslog: enabled logging of send errors.
Vladimir Homutov <vl@nginx.com>
parents: 5709
diff changeset
363 /* prevents further use of this peer */
2cb5275bf5e7 Syslog: enabled logging of send errors.
Vladimir Homutov <vl@nginx.com>
parents: 5709
diff changeset
364 peer->busy = 1;
2cb5275bf5e7 Syslog: enabled logging of send errors.
Vladimir Homutov <vl@nginx.com>
parents: 5709
diff changeset
365
5858
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
Vladimir Homutov <vl@nginx.com>
parents: 5857
diff changeset
366 if (peer->conn.fd == (ngx_socket_t) -1) {
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
Vladimir Homutov <vl@nginx.com>
parents: 5857
diff changeset
367 return;
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
Vladimir Homutov <vl@nginx.com>
parents: 5857
diff changeset
368 }
02c2352d5b01 Syslog: improved error handling of unix domain sockets.
Vladimir Homutov <vl@nginx.com>
parents: 5857
diff changeset
369
5708
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
370 if (ngx_close_socket(peer->conn.fd) == -1) {
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
371 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_socket_errno,
aacd994167d3 Syslog: fixed possible resource leak and more verbose logging.
Vladimir Homutov <vl@nginx.com>
parents: 5702
diff changeset
372 ngx_close_socket_n " failed");
5702
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
373 }
777202558122 Added syslog support for error_log and access_log directives.
Vladimir Homutov <vl@nginx.com>
parents:
diff changeset
374 }