path: root/www/nginx/files/extra-patch-syslog_support

diff --git src/core/ngx_cycle.c src/core/ngx_cycle.c
index dc4dc89..46c4b4f 100644
--- src/core/ngx_cycle.c
+++ src/core/ngx_cycle.c
@@ -85,6 +85,12 @@ ngx_init_cycle(ngx_cycle_t *old_cycle)
     cycle->pool = pool;
     cycle->log = log;
     cycle->new_log.log_level = NGX_LOG_ERR;
+#if (NGX_ENABLE_SYSLOG)
+    cycle->new_log.facility = SYSLOG_FACILITY;
+    cycle->new_log.facility = ERR_SYSLOG_PRIORITY;
+    cycle->new_log.syslog_on = 0;
+    cycle->new_log.syslog_set = 0;
+#endif
     cycle->old_cycle = old_cycle;
 
     cycle->conf_prefix.len = old_cycle->conf_prefix.len;
diff --git src/core/ngx_log.c src/core/ngx_log.c
index d7830fb..982c2ed 100644
--- src/core/ngx_log.c
+++ src/core/ngx_log.c
@@ -10,6 +10,15 @@
 
 
 static char *ngx_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
+#if (NGX_ENABLE_SYSLOG)
+static char *ngx_set_syslog(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
+void log_exit(ngx_cycle_t *cycle);
+
+typedef struct{
+    ngx_str_t     name;
+    ngx_int_t     macro;
+} ngx_string_to_macro_t;
+#endif
 
 
 static ngx_command_t  ngx_errlog_commands[] = {
@@ -21,6 +30,15 @@ static ngx_command_t  ngx_errlog_commands[] = {
      0,
      NULL},
 
+#if (NGX_ENABLE_SYSLOG)
+    {ngx_string("syslog"),
+     NGX_MAIN_CONF|NGX_CONF_TAKE12,
+     ngx_set_syslog,
+     0,
+     0,
+     NULL},
+#endif
+
     ngx_null_command
 };
 
@@ -43,7 +61,11 @@ ngx_module_t  ngx_errlog_module = {
     NULL,                                  /* init thread */
     NULL,                                  /* exit thread */
     NULL,                                  /* exit process */
-    NULL,                                  /* exit master */
+#if (NGX_ENABLE_SYSLOG)
+    log_exit,                              /* exit master */
+#else
+    NULL,
+#endif
     NGX_MODULE_V1_PADDING
 };
 
@@ -52,6 +74,48 @@ static ngx_log_t        ngx_log;
 static ngx_open_file_t  ngx_log_file;
 ngx_uint_t              ngx_use_stderr = 1;
 
+#if (NGX_ENABLE_SYSLOG)
+static ngx_string_to_macro_t ngx_syslog_facilities[] = {
+    {ngx_string("auth"),     LOG_AUTH},
+#if !(NGX_SOLARIS)
+    {ngx_string("authpriv"), LOG_AUTHPRIV},
+#endif
+    {ngx_string("cron"),     LOG_CRON},
+    {ngx_string("daemon"),   LOG_DAEMON},
+#if !(NGX_SOLARIS)
+    {ngx_string("ftp"),      LOG_FTP},
+#endif
+    {ngx_string("kern"),     LOG_KERN},
+    {ngx_string("local0"),   LOG_LOCAL0},
+    {ngx_string("local1"),   LOG_LOCAL1},
+    {ngx_string("local2"),   LOG_LOCAL2},
+    {ngx_string("local3"),   LOG_LOCAL3},
+    {ngx_string("local4"),   LOG_LOCAL4},
+    {ngx_string("local5"),   LOG_LOCAL5},
+    {ngx_string("local6"),   LOG_LOCAL6},
+    {ngx_string("local7"),   LOG_LOCAL7},
+    {ngx_string("lpr"),      LOG_LPR},
+    {ngx_string("mail"),     LOG_MAIL},
+    {ngx_string("news"),     LOG_NEWS},
+    {ngx_string("syslog"),   LOG_SYSLOG},
+    {ngx_string("user"),     LOG_USER},
+    {ngx_string("uucp"),     LOG_UUCP},
+    { ngx_null_string, 0}
+};
+
+static ngx_string_to_macro_t ngx_syslog_priorities[] = {
+    {ngx_string("emerg"), LOG_EMERG},
+    {ngx_string("alert"), LOG_ALERT},
+    {ngx_string("crit"),  LOG_CRIT},
+    {ngx_string("error"), LOG_ERR},
+    {ngx_string("err"),   LOG_ERR},
+    {ngx_string("warn"),  LOG_WARNING},
+    {ngx_string("notice"),LOG_NOTICE},
+    {ngx_string("info"),  LOG_INFO},
+    {ngx_string("debug"), LOG_DEBUG},
+    { ngx_null_string, 0}
+};
+#endif
 
 static ngx_str_t err_levels[] = {
     ngx_null_string,
@@ -89,11 +153,16 @@ ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
     va_list  args;
 #endif
     u_char  *p, *last, *msg;
+#if (NGX_ENABLE_SYSLOG)
+    u_char *errstr_syslog;
+#endif
     u_char   errstr[NGX_MAX_ERROR_STR];
 
+#if !(NGX_ENABLE_SYSLOG)
     if (log->file->fd == NGX_INVALID_FILE) {
         return;
     }
+#endif
 
     last = errstr + NGX_MAX_ERROR_STR;
 
@@ -102,6 +171,10 @@ ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
 
     p = errstr + ngx_cached_err_log_time.len;
 
+#if (NGX_ENABLE_SYSLOG)
+    errstr_syslog = p;
+#endif
+
     p = ngx_slprintf(p, last, " [%V] ", &err_levels[level]);
 
     /* pid#tid */
@@ -140,11 +213,27 @@ ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
 
     ngx_linefeed(p);
 
+#if (NGX_ENABLE_SYSLOG)
+    if (log->file != NULL && log->file->name.len != 0) {
     (void) ngx_write_fd(log->file->fd, errstr, p - errstr);
+    }
+
+    /* Don't send the debug level info to syslog */
+    if (log->syslog_on && level < NGX_LOG_DEBUG) {
+        /* write to syslog */
+        syslog(log->priority, "%.*s", (int)(p - errstr_syslog), errstr_syslog);
+    }
+#else
+    (void) ngx_write_fd(log->file->fd, errstr, p - errstr);
+#endif
 
     if (!ngx_use_stderr
         || level > NGX_LOG_WARN
+#if (NGX_ENABLE_SYSLOG)
+        || (log->file != NULL && log->file->fd == ngx_stderr))
+#else
         || log->file->fd == ngx_stderr)
+#endif
     {
         return;
     }
@@ -367,6 +456,50 @@ ngx_log_create(ngx_cycle_t *cycle, ngx_str_t *name)
 }
 
 
+#if (NGX_ENABLE_SYSLOG)
+ngx_int_t
+ngx_log_get_priority(ngx_conf_t *cf, ngx_str_t *priority)
+{
+    ngx_int_t  p = 0;
+    ngx_uint_t n, match = 0;
+
+    for (n = 0; ngx_syslog_priorities[n].name.len != 0; n++) {
+        if (ngx_strncmp(priority->data, ngx_syslog_priorities[n].name.data, 
+                    ngx_syslog_priorities[n].name.len) == 0) {
+            p = ngx_syslog_priorities[n].macro;
+            match = 1;
+        }
+    }
+
+    if (!match) {
+        ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
+                "invalid syslog priority \"%V\"", priority);
+        return -1;
+    }
+
+    return p;
+}
+
+
+char *
+ngx_log_set_priority(ngx_conf_t *cf, ngx_str_t *priority, ngx_log_t *log)
+{
+    log->priority = ERR_SYSLOG_PRIORITY;
+
+    if (priority->len == 0) {
+        return NGX_CONF_OK;
+    }
+
+    log->priority = ngx_log_get_priority(cf, priority);
+    if (log->priority == (-1)) {
+        return NGX_CONF_ERROR;
+    }
+
+    return NGX_CONF_OK;
+}
+#endif
+
+
 char *
 ngx_log_set_levels(ngx_conf_t *cf, ngx_log_t *log)
 {
@@ -429,6 +562,13 @@ static char *
 ngx_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
 {
     ngx_str_t  *value, name;
+#if (NGX_ENABLE_SYSLOG)
+    u_char     *off = NULL;
+    ngx_str_t  priority;
+
+    ngx_str_null(&name);
+    ngx_str_null(&priority);
+#endif
 
     if (cf->cycle->new_log.file) {
         return "is duplicate";
@@ -436,7 +576,44 @@ ngx_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
 
     value = cf->args->elts;
 
+#if (NGX_ENABLE_SYSLOG)
+    if (ngx_strncmp(value[1].data, "syslog", sizeof("syslog") - 1) == 0) {
+        if (!cf->cycle->new_log.syslog_set) {
+            ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
+                    "You must set the syslog directive and enable it first.");
+            return NGX_CONF_ERROR;
+        }
+
+        cf->cycle->new_log.syslog_on = 1;
+
+        if (value[1].data[sizeof("syslog") - 1] == ':') {
+            priority.len = value[1].len - sizeof("syslog");
+            priority.data = value[1].data + sizeof("syslog");
+
+            off = (u_char *)ngx_strchr(priority.data, (int) '|');
+            if (off != NULL) {
+                priority.len = off - priority.data;
+
+                off++;
+                name.len = value[1].data + value[1].len - off;
+                name.data = off;
+            }
+        }
+        else {
+            if (value[1].len > sizeof("syslog")) {
+                name.len = value[1].len - sizeof("syslog");
+                name.data = value[1].data + sizeof("syslog");
+            }
+        }
+
+        if (ngx_log_set_priority(cf, &priority, &cf->cycle->new_log) == NGX_CONF_ERROR) {
+            return NGX_CONF_ERROR;
+        }
+    }
+    else if (ngx_strcmp(value[1].data, "stderr") == 0) {
+#else
     if (ngx_strcmp(value[1].data, "stderr") == 0) {
+#endif
         ngx_str_null(&name);
 
     } else {
@@ -457,3 +634,63 @@ ngx_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
 
     return ngx_log_set_levels(cf, &cf->cycle->new_log);
 }
+
+
+#if (NGX_ENABLE_SYSLOG)
+
+#define SYSLOG_IDENT_NAME "nginx"
+
+static char *
+ngx_set_syslog(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
+{
+    char       *program;
+    ngx_str_t  *value;
+    ngx_int_t   facility, match = 0;
+    ngx_uint_t  n;
+
+    value = cf->args->elts;
+
+    if (cf->cycle->new_log.syslog_set) {
+        return "is duplicate";
+    }
+
+    cf->cycle->new_log.syslog_set = 1;
+
+    for (n = 0; ngx_syslog_facilities[n].name.len != 0; n++) {
+        if (ngx_strncmp(value[1].data, ngx_syslog_facilities[n].name.data, 
+                    ngx_syslog_facilities[n].name.len) == 0) {
+            facility = ngx_syslog_facilities[n].macro;
+            match = 1;
+            break;
+        }
+    }
+
+    if (match) {
+        cf->cycle->new_log.facility = facility;
+        cf->cycle->new_log.priority = ERR_SYSLOG_PRIORITY;
+    }
+    else {
+        ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
+                "invalid syslog facility \"%V\"", &value[1]);
+        return NGX_CONF_ERROR;
+    }
+
+    program = SYSLOG_IDENT_NAME; 
+    if (cf->args->nelts > 2) {
+        program = (char *) value[2].data;
+    }
+
+    openlog(program, LOG_ODELAY, facility);
+
+    return NGX_CONF_OK;
+}
+
+
+void log_exit(ngx_cycle_t *cycle)
+{
+    if (cycle->new_log.syslog_set) {
+        closelog();
+    }
+}
+#endif
+
diff --git src/core/ngx_log.h src/core/ngx_log.h
index 3233647..5e7fdbf 100644
--- src/core/ngx_log.h
+++ src/core/ngx_log.h
@@ -12,6 +12,15 @@
 #include <ngx_config.h>
 #include <ngx_core.h>
 
+#if (NGX_ENABLE_SYSLOG)
+#include <syslog.h>
+
+#ifndef SYSLOG_FACILITY
+#define SYSLOG_FACILITY LOG_LOCAL5
+#endif
+#define ERR_SYSLOG_PRIORITY LOG_ERR
+#endif
+
 
 #define NGX_LOG_STDERR            0
 #define NGX_LOG_EMERG             1
@@ -61,6 +68,13 @@ struct ngx_log_s {
      */
 
     char                *action;
+
+#if (NGX_ENABLE_SYSLOG)
+    ngx_int_t           priority;
+    ngx_int_t           facility;
+    unsigned            syslog_on:1;      /* unsigned :1 syslog_on */
+    unsigned            syslog_set:1;      /*unsigned :1 syslog_set */
+#endif
 };
 
 
@@ -221,6 +235,10 @@ void ngx_cdecl ngx_log_debug_core(ngx_log_t *log, ngx_err_t err,
 
 ngx_log_t *ngx_log_init(u_char *prefix);
 ngx_log_t *ngx_log_create(ngx_cycle_t *cycle, ngx_str_t *name);
+#if (NGX_ENABLE_SYSLOG)
+ngx_int_t ngx_log_get_priority(ngx_conf_t *cf, ngx_str_t *priority);
+char * ngx_log_set_priority(ngx_conf_t *cf, ngx_str_t *priority, ngx_log_t *log);
+#endif
 char *ngx_log_set_levels(ngx_conf_t *cf, ngx_log_t *log);
 void ngx_cdecl ngx_log_abort(ngx_err_t err, const char *fmt, ...);
 void ngx_cdecl ngx_log_stderr(ngx_err_t err, const char *fmt, ...);
diff --git src/http/modules/ngx_http_log_module.c src/http/modules/ngx_http_log_module.c
index aa6a3fc..deceb38 100644
--- src/http/modules/ngx_http_log_module.c
+++ src/http/modules/ngx_http_log_module.c
@@ -13,6 +13,11 @@
 #include <zlib.h>
 #endif
 
+#if (NGX_ENABLE_SYSLOG)
+#include <syslog.h>
+
+#define HTTP_SYSLOG_PRIORITY LOG_NOTICE
+#endif
 
 typedef struct ngx_http_log_op_s  ngx_http_log_op_t;
 
@@ -67,6 +72,11 @@ typedef struct {
     time_t                      disk_full_time;
     time_t                      error_log_time;
     ngx_http_log_fmt_t         *format;
+
+#if (NGX_ENABLE_SYSLOG)
+    ngx_int_t                   priority;
+    unsigned                    syslog_on:1;      /* unsigned :1 syslog_on */
+#endif
 } ngx_http_log_t;
 
 
@@ -348,6 +358,14 @@ ngx_http_log_write(ngx_http_request_t *r, ngx_http_log_t *log, u_char *buf,
     time_t               now;
     ssize_t              n;
     ngx_err_t            err;
+
+#if (NGX_ENABLE_SYSLOG)
+    n = 0;
+    if (log->syslog_on) {
+        syslog(log->priority, "%.*s", (int)len, buf);
+    }
+#endif
+
 #if (NGX_ZLIB)
     ngx_http_log_buf_t  *buffer;
 #endif
@@ -355,6 +373,9 @@ ngx_http_log_write(ngx_http_request_t *r, ngx_http_log_t *log, u_char *buf,
     if (log->script == NULL) {
         name = log->file->name.data;
 
+#if (NGX_ENABLE_SYSLOG)
+        if (name != NULL) {
+#endif
 #if (NGX_ZLIB)
         buffer = log->file->data;
 
@@ -367,7 +388,11 @@ ngx_http_log_write(ngx_http_request_t *r, ngx_http_log_t *log, u_char *buf,
 #else
         n = ngx_write_fd(log->file->fd, buf, len);
 #endif
-
+#if (NGX_ENABLE_SYSLOG)
+        } else {
+            n = len;
+        }
+#endif
     } else {
         name = NULL;
         n = ngx_http_log_script_write(r, log->script, &name, buf, len);
@@ -1068,6 +1093,10 @@ ngx_http_log_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
     log->script = NULL;
     log->disk_full_time = 0;
     log->error_log_time = 0;
+#if (NGX_ENABLE_SYSLOG)
+    log->priority = HTTP_SYSLOG_PRIORITY;
+    log->syslog_on = 0;
+#endif
 
     lmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_log_module);
     fmt = lmcf->formats.elts;
@@ -1096,6 +1125,13 @@ ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
     ngx_http_log_main_conf_t   *lmcf;
     ngx_http_script_compile_t   sc;
 
+#if (NGX_ENABLE_SYSLOG)
+    u_char                     *off;
+    ngx_str_t                   priority;
+    ngx_uint_t                  syslog_on = 0;
+    name = priority = (ngx_str_t)ngx_null_string;
+#endif
+
     value = cf->args->elts;
 
     if (ngx_strcmp(value[1].data, "off") == 0) {
@@ -1108,6 +1144,38 @@ ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
                            "invalid parameter \"%V\"", &value[2]);
         return NGX_CONF_ERROR;
     }
+#if (NGX_ENABLE_SYSLOG)
+    else if (ngx_strncmp(value[1].data, "syslog", sizeof("syslog") - 1) == 0) {
+        if (!cf->cycle->new_log.syslog_set) {
+            ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
+                               "You must set the syslog directive and enable it first.");
+            return NGX_CONF_ERROR;
+        }
+
+        syslog_on = 1;
+        if (value[1].data[sizeof("syslog") - 1] == ':') {
+            priority.len = value[1].len - sizeof("syslog");
+            priority.data = value[1].data + sizeof("syslog");
+
+            off = (u_char*) ngx_strchr(priority.data, '|'); 
+            if (off != NULL) {
+                priority.len = off - priority.data;
+                
+                off++;
+                name.len = value[1].data + value[1].len - off;
+                name.data = off;
+            }
+        }
+        else {
+            if (value[1].len > sizeof("syslog")) {
+                name.len = value[1].len - sizeof("syslog");
+                name.data = value[1].data + sizeof("syslog");
+            }
+        }
+    } else {
+        name = value[1];
+    }
+#endif
 
     if (llcf->logs == NULL) {
         llcf->logs = ngx_array_create(cf->pool, 2, sizeof(ngx_http_log_t));
@@ -1125,6 +1193,52 @@ ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
 
     ngx_memzero(log, sizeof(ngx_http_log_t));
 
+#if (NGX_ENABLE_SYSLOG)
+    log->syslog_on = syslog_on;
+
+    if (priority.len == 0) {
+        log->priority = HTTP_SYSLOG_PRIORITY;
+    }
+    else {
+        log->priority = ngx_log_get_priority(cf, &priority);
+    }
+
+    if (name.len != 0) {
+        n = ngx_http_script_variables_count(&name);
+
+        if (n == 0) {
+            log->file = ngx_conf_open_file(cf->cycle, &name);
+            if (log->file == NULL) {
+                return NGX_CONF_ERROR;
+            }
+        } else {
+            if (ngx_conf_full_name(cf->cycle, &name, 0) != NGX_OK) {
+                return NGX_CONF_ERROR;
+            }
+            log->script = ngx_pcalloc(cf->pool, sizeof(ngx_http_log_script_t));
+            if (log->script == NULL) {
+                return NGX_CONF_ERROR;
+            }
+            ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
+            sc.cf = cf;
+            sc.source = &name;
+            sc.lengths = &log->script->lengths;
+            sc.values = &log->script->values;
+            sc.variables = n;
+            sc.complete_lengths = 1;
+            sc.complete_values = 1;
+            if (ngx_http_script_compile(&sc) != NGX_OK) {
+                return NGX_CONF_ERROR;
+            }
+        }
+    }
+    else {
+        log->file = ngx_conf_open_file(cf->cycle, &name);
+        if (log->file == NULL) {
+            return NGX_CONF_ERROR;
+        }
+    }
+#else
     n = ngx_http_script_variables_count(&value[1]);
 
     if (n == 0) {
@@ -1157,6 +1271,7 @@ ngx_http_log_set_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
             return NGX_CONF_ERROR;
         }
     }
+#endif
 
     if (cf->args->nelts >= 3) {
         name = value[2];
diff --git src/http/ngx_http_core_module.c src/http/ngx_http_core_module.c
index c491499..4f039eb 100644
--- src/http/ngx_http_core_module.c
+++ src/http/ngx_http_core_module.c
@@ -1462,6 +1462,9 @@ ngx_http_update_location_config(ngx_http_request_t *r)
 
     if (r == r->main) {
         ngx_http_set_connection_log(r->connection, clcf->error_log);
+#if (NGX_ENABLE_SYSLOG)
+        r->connection->log->priority = clcf->error_log->priority;
+#endif
     }
 
     if ((ngx_io.flags & NGX_IO_SENDFILE) && clcf->sendfile) {
@@ -4867,6 +4870,15 @@ ngx_http_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
 
     ngx_str_t  *value, name;
 
+#if (NGX_ENABLE_SYSLOG)
+    u_char     *off = NULL;
+    ngx_int_t   syslog_on = 0;
+    ngx_str_t   priority;
+
+    name = priority = (ngx_str_t) ngx_null_string;
+#endif
+
+
     if (clcf->error_log) {
         return "is duplicate";
     }
@@ -4876,6 +4888,36 @@ ngx_http_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
     if (ngx_strcmp(value[1].data, "stderr") == 0) {
         ngx_str_null(&name);
 
+#if (NGX_ENABLE_SYSLOG)
+    } else if (ngx_strncmp(value[1].data, "syslog", sizeof("syslog") - 1) == 0) {
+        if (!cf->cycle->new_log.syslog_set) {
+            ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
+                    "You must set the syslog directive and enable it first.");
+            return NGX_CONF_ERROR;
+        }
+
+        syslog_on = 1;
+
+        if (value[1].data[sizeof("syslog") - 1] == ':') {
+            priority.len = value[1].len - sizeof("syslog");
+            priority.data = value[1].data + sizeof("syslog");
+
+            off = (u_char*) ngx_strchr(priority.data, '|'); 
+            if (off != NULL) {
+                priority.len = off - priority.data;
+
+                off++;
+                name.len = value[1].data + value[1].len - off;
+                name.data = off;
+            }
+        }
+        else {
+            if (value[1].len > sizeof("syslog")) {
+                name.len = value[1].len - sizeof("syslog");
+                name.data = value[1].data + sizeof("syslog");
+            }
+        }
+#endif
     } else {
         name = value[1];
     }
@@ -4885,6 +4927,17 @@ ngx_http_core_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
         return NGX_CONF_ERROR;
     }
 
+#if (NGX_ENABLE_SYSLOG)
+    if (syslog_on) {
+        clcf->error_log->syslog_on = 1;
+        if (ngx_log_set_priority(cf, &priority, clcf->error_log) == NGX_CONF_ERROR) {
+            return NGX_CONF_ERROR;
+        }
+    }
+
+    clcf->error_log->log_level = 0;
+#endif
+
     if (cf->args->nelts == 2) {
         clcf->error_log->log_level = NGX_LOG_ERR;
         return NGX_CONF_OK;
diff --git src/http/ngx_http_request.c src/http/ngx_http_request.c
index 54e1c26..2b05157 100644
--- src/http/ngx_http_request.c
+++ src/http/ngx_http_request.c
@@ -424,6 +424,9 @@ ngx_http_init_request(ngx_event_t *rev)
     clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
 
     ngx_http_set_connection_log(r->connection, clcf->error_log);
+#if (NGX_ENABLE_SYSLOG)
+    c->log->priority = clcf->error_log->priority;
+#endif
 
     if (c->buffer == NULL) {
         c->buffer = ngx_create_temp_buf(c->pool,
@@ -694,6 +697,9 @@ ngx_http_ssl_servername(ngx_ssl_conn_t *ssl_conn, int *ad, void *arg)
     clcf = ngx_http_get_module_loc_conf(hc->conf_ctx, ngx_http_core_module);
 
     ngx_http_set_connection_log(c, clcf->error_log);
+#if (NGX_ENABLE_SYSLOG)
+    c->log->priority = clcf->error_log->priority;
+#endif
 
     sscf = ngx_http_get_module_srv_conf(hc->conf_ctx, ngx_http_ssl_module);
 
@@ -1891,6 +1897,9 @@ ngx_http_set_virtual_server(ngx_http_request_t *r, ngx_str_t *host)
     clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
 
     ngx_http_set_connection_log(r->connection, clcf->error_log);
+#if (NGX_ENABLE_SYSLOG)
+    r->connection->log->priority = clcf->error_log->priority;
+#endif
 
     return NGX_OK;
 }
--- auto/summary.orig	2010-07-08 19:57:36.000000000 +0400
+++ auto/summary	2010-12-08 12:25:16.000000000 +0300
@@ -73,6 +73,11 @@
     *)     echo "  + using libatomic_ops library: $NGX_LIBATOMIC" ;;
 esac
 
+case $USE_SYSLOG in
+    YES)   echo "  + using syslog with $SYSLOG_FACILITY facility" ;;
+    *)     echo "  + syslog is not used" ;;
+esac
+
 echo
 
 
--- auto/make.orig	2009-05-12 17:15:43.000000000 +0400
+++ auto/make	2010-12-08 12:32:25.000000000 +0300
@@ -15,6 +15,13 @@
 ngx_objs_dir=$NGX_OBJS$ngx_regex_dirsep
 ngx_use_pch=`echo $NGX_USE_PCH | sed -e "s/\//$ngx_regex_dirsep/g"`
 
+#SYSLOG
+if test -z "${SYSLOG_FACILITY}"; then
+    SYSLOG_FACILITY="LOG_DAEMON"
+fi
+if test "${USE_SYSLOG}" = "YES"; then
+    CFLAGS="$CFLAGS -DNGX_ENABLE_SYSLOG -DSYSLOG_FACILITY=${SYSLOG_FACILITY}"
+fi
 
 cat << END                                                     > $NGX_MAKEFILE
 
--- auto/options.orig	2011-11-01 09:01:14.000000000 +0400
+++ auto/options	2011-11-01 09:02:42.000000000 +0400
@@ -120,6 +120,8 @@
 MD5_OPT=
 MD5_ASM=NO
 
+USE_SYSLOG=NO
+
 USE_SHA1=NO
 SHA1=NONE
 SHA1_OPT=
@@ -274,6 +276,9 @@
         --with-md5-opt=*)                MD5_OPT="$value"           ;;
         --with-md5-asm)                  MD5_ASM=YES                ;;
 
+        --with-syslog)                   USE_SYSLOG=YES             ;;
+        --with-syslog-facility=*)        SYSLOG_FACILITY="$value"   ;;
+
         --with-sha1=*)                   SHA1="$value"              ;;
         --with-sha1-opt=*)               SHA1_OPT="$value"          ;;
         --with-sha1-asm)                 SHA1_ASM=YES               ;;
@@ -418,6 +423,9 @@
   --with-md5-opt=OPTIONS             set additional options for md5 building
   --with-md5-asm                     use md5 assembler sources
 
+  --with-syslog                      use syslog instead of files to log messages
+  --with-syslog-facility=FACILITY    set syslog facility
+
   --with-sha1=DIR                    set path to sha1 library sources
   --with-sha1-opt=OPTIONS            set additional options for sha1 building
   --with-sha1-asm                    use sha1 assembler sources