3 * Copyright (C) Igor Sysoev
7 #include <ngx_config.h>
11 static char *ngx_set_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
14 static ngx_command_t ngx_errlog_commands[] = {
16 {ngx_string("error_log"),
17 NGX_MAIN_CONF|NGX_CONF_1MORE,
27 static ngx_core_module_t ngx_errlog_module_ctx = {
34 ngx_module_t ngx_errlog_module = {
36 &ngx_errlog_module_ctx, /* module context */
37 ngx_errlog_commands, /* module directives */
38 NGX_CORE_MODULE, /* module type */
39 NULL, /* init master */
40 NULL, /* init module */
41 NULL, /* init process */
42 NULL, /* init thread */
43 NULL, /* exit thread */
44 NULL, /* exit process */
45 NULL, /* exit master */
50 static ngx_log_t ngx_log;
51 static ngx_open_file_t ngx_stderr;
54 static const char *err_levels[] = {
55 "stderr", "emerg", "alert", "crit", "error",
56 "warn", "notice", "info", "debug"
59 static const char *debug_levels[] = {
60 "debug_core", "debug_alloc", "debug_mutex", "debug_event",
61 "debug_http", "debug_mail", "debug_mysql"
65 #if (NGX_HAVE_VARIADIC_MACROS)
68 ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
74 ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
75 const char *fmt, va_list args)
79 #if (NGX_HAVE_VARIADIC_MACROS)
82 u_char errstr[NGX_MAX_ERROR_STR], *p, *last;
84 if (log->file->fd == NGX_INVALID_FILE) {
88 last = errstr + NGX_MAX_ERROR_STR;
90 ngx_memcpy(errstr, ngx_cached_err_log_time.data,
91 ngx_cached_err_log_time.len);
93 p = errstr + ngx_cached_err_log_time.len;
95 p = ngx_snprintf(p, last - p, " [%s] ", err_levels[level]);
98 p = ngx_snprintf(p, last - p, "%P#" NGX_TID_T_FMT ": ",
99 ngx_log_pid, ngx_log_tid);
101 if (log->connection) {
102 p = ngx_snprintf(p, last - p, "*%uA ", log->connection);
105 #if (NGX_HAVE_VARIADIC_MACROS)
108 p = ngx_vsnprintf(p, last - p, fmt, args);
113 p = ngx_vsnprintf(p, last - p, fmt, args);
121 /* leave a space for an error code */
130 p = ngx_snprintf(p, last - p, ((unsigned) err < 0x80000000)
131 ? " (%d: " : " (%Xd: ", err);
133 p = ngx_snprintf(p, last - p, " (%d: ", err);
136 p = ngx_strerror_r(err, p, last - p);
143 if (level != NGX_LOG_DEBUG && log->handler) {
144 p = log->handler(log, p, last - p);
147 if (p > last - NGX_LINEFEED_SIZE) {
148 p = last - NGX_LINEFEED_SIZE;
153 (void) ngx_write_fd(log->file->fd, errstr, p - errstr);
157 #if !(NGX_HAVE_VARIADIC_MACROS)
160 ngx_log_error(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
161 const char *fmt, ...)
165 if (log->log_level >= level) {
167 ngx_log_error_core(level, log, err, fmt, args);
174 ngx_log_debug_core(ngx_log_t *log, ngx_err_t err, const char *fmt, ...)
179 ngx_log_error_core(NGX_LOG_DEBUG, log, err, fmt, args);
187 ngx_log_abort(ngx_err_t err, const char *text)
189 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, err, text);
196 ngx_log.file = &ngx_stderr;
197 ngx_log.log_level = NGX_LOG_NOTICE;
201 ngx_stderr_fileno = GetStdHandle(STD_ERROR_HANDLE);
203 ngx_stderr.fd = ngx_open_file(NGX_ERROR_LOG_PATH, NGX_FILE_RDWR,
204 NGX_FILE_CREATE_OR_OPEN|NGX_FILE_APPEND, 0);
206 if (ngx_stderr.fd == NGX_INVALID_FILE) {
207 ngx_message_box("nginx", MB_OK, ngx_errno,
208 "Could not open error log file: "
209 ngx_open_file_n " \"" NGX_ERROR_LOG_PATH "\" failed");
213 if (ngx_file_append_mode(ngx_stderr.fd) == NGX_ERROR) {
214 ngx_message_box("nginx", MB_OK, ngx_errno,
215 "Could not open error log file: "
216 ngx_file_append_mode_n " \"" NGX_ERROR_LOG_PATH
223 ngx_stderr.fd = STDERR_FILENO;
232 ngx_log_create_errlog(ngx_cycle_t *cycle, ngx_array_t *args)
235 ngx_str_t *value, *name;
245 log = ngx_pcalloc(cycle->pool, sizeof(ngx_log_t));
250 log->file = ngx_conf_open_file(cycle, name);
251 if (log->file == NULL) {
260 ngx_set_error_log_levels(ngx_conf_t *cf, ngx_log_t *log)
265 value = cf->args->elts;
267 for (i = 2; i < cf->args->nelts; i++) {
269 for (n = 1; n <= NGX_LOG_DEBUG; n++) {
270 if (ngx_strcmp(value[i].data, err_levels[n]) == 0) {
272 if (log->log_level != 0) {
273 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
274 "duplicate log level \"%s\"",
276 return NGX_CONF_ERROR;
284 for (n = 0, d = NGX_LOG_DEBUG_FIRST; d <= NGX_LOG_DEBUG_LAST; d <<= 1) {
285 if (ngx_strcmp(value[i].data, debug_levels[n++]) == 0) {
286 if (log->log_level & ~NGX_LOG_DEBUG_ALL) {
287 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
288 "invalid log level \"%s\"",
290 return NGX_CONF_ERROR;
298 if (log->log_level == 0) {
299 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
300 "invalid log level \"%s\"", value[i].data);
301 return NGX_CONF_ERROR;
305 if (log->log_level == 0) {
306 log->log_level = NGX_LOG_ERR;
308 } else if (log->log_level == NGX_LOG_DEBUG) {
309 log->log_level = NGX_LOG_DEBUG_ALL;
317 ngx_set_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
321 value = cf->args->elts;
323 if (value[1].len == 6 && ngx_strcmp(value[1].data, "stderr") == 0) {
324 cf->cycle->new_log->file->fd = ngx_stderr.fd;
325 cf->cycle->new_log->file->name.len = 0;
326 cf->cycle->new_log->file->name.data = NULL;
329 cf->cycle->new_log->file->name = value[1];
331 if (ngx_conf_full_name(cf->cycle, &cf->cycle->new_log->file->name, 0)
334 return NGX_CONF_ERROR;
338 return ngx_set_error_log_levels(cf, cf->cycle->new_log);