0
|
1
|
|
2 /*
|
|
3 * Copyright (C) Igor Sysoev
|
|
4 */
|
|
5
|
|
6
|
|
7 #include <ngx_config.h>
|
|
8 #include <ngx_core.h>
|
|
9
|
|
10
|
10
|
11 static void ngx_log_write(ngx_log_t *log, u_char *errstr, size_t len);
|
0
|
12 static char *ngx_set_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
|
|
13
|
|
14
|
|
15 static ngx_command_t ngx_errlog_commands[] = {
|
|
16
|
|
17 {ngx_string("error_log"),
|
|
18 NGX_MAIN_CONF|NGX_CONF_1MORE,
|
|
19 ngx_set_error_log,
|
|
20 0,
|
|
21 0,
|
|
22 NULL},
|
|
23
|
|
24 ngx_null_command
|
|
25 };
|
|
26
|
|
27
|
|
28 static ngx_core_module_t ngx_errlog_module_ctx = {
|
|
29 ngx_string("errlog"),
|
|
30 NULL,
|
|
31 NULL
|
|
32 };
|
|
33
|
|
34
|
|
35 ngx_module_t ngx_errlog_module = {
|
|
36 NGX_MODULE,
|
|
37 &ngx_errlog_module_ctx, /* module context */
|
|
38 ngx_errlog_commands, /* module directives */
|
|
39 NGX_CORE_MODULE, /* module type */
|
|
40 NULL, /* init module */
|
10
|
41 NULL /* init process */
|
0
|
42 };
|
|
43
|
|
44
|
|
45 static ngx_log_t ngx_log;
|
|
46 static ngx_open_file_t ngx_stderr;
|
|
47
|
|
48
|
|
49 static const char *err_levels[] = {
|
|
50 "stderr", "emerg", "alert", "crit", "error",
|
|
51 "warn", "notice", "info", "debug"
|
|
52 };
|
|
53
|
|
54 static const char *debug_levels[] = {
|
|
55 "debug_core", "debug_alloc", "debug_mutex", "debug_event",
|
|
56 "debug_http", "debug_imap"
|
|
57 };
|
|
58
|
|
59
|
4
|
60 #if (NGX_HAVE_VARIADIC_MACROS)
|
0
|
61 void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
|
|
62 const char *fmt, ...)
|
|
63 #else
|
|
64 void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
|
|
65 const char *fmt, va_list args)
|
|
66 #endif
|
|
67 {
|
4
|
68 #if (NGX_HAVE_VARIADIC_MACROS)
|
10
|
69 va_list args;
|
0
|
70 #endif
|
10
|
71 u_char errstr[NGX_MAX_ERROR_STR], *p, *last;
|
0
|
72
|
|
73 if (log->file->fd == NGX_INVALID_FILE) {
|
|
74 return;
|
|
75 }
|
|
76
|
10
|
77 last = errstr + NGX_MAX_ERROR_STR;
|
|
78
|
0
|
79 ngx_memcpy(errstr, ngx_cached_err_log_time.data,
|
|
80 ngx_cached_err_log_time.len);
|
|
81
|
10
|
82 p = errstr + ngx_cached_err_log_time.len;
|
0
|
83
|
10
|
84 p = ngx_sprintf(p, " [%s] ", err_levels[level]);
|
0
|
85
|
|
86 /* pid#tid */
|
10
|
87 p = ngx_sprintf(p, "%P#" NGX_TID_T_FMT ": ", ngx_log_pid, ngx_log_tid);
|
0
|
88
|
|
89 if (log->data && *(int *) log->data != -1) {
|
10
|
90 p = ngx_sprintf(p, "*%ud ", *(u_int *) log->data);
|
0
|
91 }
|
|
92
|
4
|
93 #if (NGX_HAVE_VARIADIC_MACROS)
|
0
|
94
|
|
95 va_start(args, fmt);
|
10
|
96 p = ngx_vsnprintf(p, last - p, fmt, args);
|
0
|
97 va_end(args);
|
|
98
|
|
99 #else
|
|
100
|
10
|
101 p = ngx_vsnprintf(p, last - p, fmt, args);
|
0
|
102
|
|
103 #endif
|
|
104
|
|
105 if (err) {
|
|
106
|
10
|
107 if (p > last - 50) {
|
0
|
108
|
|
109 /* leave a space for an error code */
|
|
110
|
10
|
111 p = last - 50;
|
|
112 *p++ = '.';
|
|
113 *p++ = '.';
|
|
114 *p++ = '.';
|
0
|
115 }
|
|
116
|
10
|
117 #if (NGX_WIN32)
|
|
118
|
0
|
119 if ((unsigned) err >= 0x80000000) {
|
10
|
120 p = ngx_snprintf(p, last - p, " (%Xd: ", err);
|
|
121
|
0
|
122 } else {
|
10
|
123 p = ngx_snprintf(p, last - p, " (%d: ", err);
|
0
|
124 }
|
10
|
125
|
0
|
126 #else
|
10
|
127
|
|
128 p = ngx_snprintf(p, last - p, " (%d: ", err);
|
|
129
|
0
|
130 #endif
|
|
131
|
10
|
132 p = ngx_strerror_r(err, p, last - p);
|
0
|
133
|
10
|
134 if (p < last) {
|
|
135 *p++ = ')';
|
0
|
136 }
|
|
137 }
|
|
138
|
|
139 if (level != NGX_LOG_DEBUG && log->handler) {
|
10
|
140 p = log->handler(log->data, p, last - p);
|
0
|
141 }
|
|
142
|
10
|
143 ngx_log_write(log, errstr, p - errstr);
|
0
|
144 }
|
|
145
|
|
146
|
10
|
147 static void ngx_log_write(ngx_log_t *log, u_char *errstr, size_t len)
|
0
|
148 {
|
10
|
149 #if (NGX_WIN32)
|
0
|
150 u_long written;
|
|
151
|
10
|
152 if (len >= NGX_MAX_ERROR_STR - 1) {
|
|
153 len = NGX_MAX_ERROR_STR - 2;
|
|
154 }
|
|
155
|
0
|
156 errstr[len++] = CR;
|
|
157 errstr[len++] = LF;
|
|
158 WriteFile(log->file->fd, errstr, len, &written, NULL);
|
|
159
|
|
160 #else
|
|
161
|
10
|
162 if (len == NGX_MAX_ERROR_STR) {
|
|
163 len--;
|
|
164 }
|
|
165
|
0
|
166 errstr[len++] = LF;
|
|
167 write(log->file->fd, errstr, len);
|
|
168
|
|
169 #endif
|
|
170 }
|
|
171
|
|
172
|
4
|
173 #if !(NGX_HAVE_VARIADIC_MACROS)
|
0
|
174
|
|
175 void ngx_log_error(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
|
|
176 const char *fmt, ...)
|
|
177 {
|
10
|
178 va_list args;
|
0
|
179
|
|
180 if (log->log_level >= level) {
|
|
181 va_start(args, fmt);
|
|
182 ngx_log_error_core(level, log, err, fmt, args);
|
|
183 va_end(args);
|
|
184 }
|
|
185 }
|
|
186
|
|
187
|
|
188 void ngx_log_debug_core(ngx_log_t *log, ngx_err_t err, const char *fmt, ...)
|
|
189 {
|
10
|
190 va_list args;
|
0
|
191
|
|
192 va_start(args, fmt);
|
|
193 ngx_log_error_core(NGX_LOG_DEBUG, log, err, fmt, args);
|
|
194 va_end(args);
|
|
195 }
|
|
196
|
|
197 #endif
|
|
198
|
|
199
|
10
|
200 ngx_log_t *ngx_log_init()
|
0
|
201 {
|
10
|
202 ngx_log.file = &ngx_stderr;
|
|
203 ngx_log.log_level = NGX_LOG_NOTICE;
|
0
|
204
|
10
|
205 #if (NGX_WIN32)
|
0
|
206
|
10
|
207 ngx_stderr.fd = ngx_open_file(NGX_ERROR_LOG_PATH, NGX_FILE_RDWR,
|
|
208 NGX_FILE_CREATE_OR_OPEN|NGX_FILE_APPEND);
|
0
|
209
|
10
|
210 if (ngx_stderr.fd == NGX_INVALID_FILE) {
|
|
211 ngx_message_box("nginx", MB_OK, ngx_errno,
|
|
212 "Could not open error log file: "
|
|
213 ngx_open_file_n " \"" NGX_ERROR_LOG_PATH "\" failed");
|
0
|
214 return NULL;
|
10
|
215 }
|
0
|
216
|
10
|
217 if (ngx_file_append_mode(ngx_stderr.fd) == NGX_ERROR) {
|
|
218 ngx_message_box("nginx", MB_OK, ngx_errno,
|
|
219 "Could not open error log file: "
|
|
220 ngx_file_append_mode_n " \"" NGX_ERROR_LOG_PATH
|
|
221 "\" failed");
|
|
222 return NULL;
|
0
|
223 }
|
|
224
|
|
225 #else
|
|
226
|
|
227 ngx_stderr.fd = STDERR_FILENO;
|
|
228
|
|
229 #endif
|
|
230
|
|
231 return &ngx_log;
|
|
232 }
|
|
233
|
|
234
|
|
235 ngx_log_t *ngx_log_create_errlog(ngx_cycle_t *cycle, ngx_array_t *args)
|
|
236 {
|
|
237 ngx_log_t *log;
|
|
238 ngx_str_t *value, *name;
|
|
239
|
|
240 if (args) {
|
|
241 value = args->elts;
|
|
242 name = &value[1];
|
|
243
|
|
244 } else {
|
|
245 name = NULL;
|
|
246 }
|
|
247
|
|
248 if (!(log = ngx_pcalloc(cycle->pool, sizeof(ngx_log_t)))) {
|
|
249 return NULL;
|
|
250 }
|
|
251
|
|
252 if (!(log->file = ngx_conf_open_file(cycle, name))) {
|
|
253 return NULL;
|
|
254 }
|
|
255
|
|
256 return log;
|
|
257 }
|
|
258
|
|
259
|
|
260 char *ngx_set_error_log_levels(ngx_conf_t *cf, ngx_log_t *log)
|
|
261 {
|
|
262 ngx_uint_t i, n, d;
|
|
263 ngx_str_t *value;
|
|
264
|
|
265 value = cf->args->elts;
|
|
266
|
|
267 for (i = 2; i < cf->args->nelts; i++) {
|
|
268
|
|
269 for (n = 1; n <= NGX_LOG_DEBUG; n++) {
|
|
270 if (ngx_strcmp(value[i].data, err_levels[n]) == 0) {
|
|
271
|
|
272 if (log->log_level != 0) {
|
|
273 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
274 "invalid log level \"%s\"",
|
|
275 value[i].data);
|
|
276 return NGX_CONF_ERROR;
|
|
277 }
|
|
278
|
|
279 log->log_level = n;
|
|
280 continue;
|
|
281 }
|
|
282 }
|
|
283
|
|
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\"",
|
|
289 value[i].data);
|
|
290 return NGX_CONF_ERROR;
|
|
291 }
|
|
292
|
|
293 log->log_level |= d;
|
|
294 }
|
|
295 }
|
|
296
|
|
297
|
|
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;
|
|
302 }
|
|
303 }
|
|
304
|
|
305 if (log->log_level == NGX_LOG_DEBUG) {
|
|
306 log->log_level = NGX_LOG_DEBUG_ALL;
|
|
307 }
|
|
308
|
|
309 return NGX_CONF_OK;
|
|
310 }
|
|
311
|
|
312
|
|
313 static char *ngx_set_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
314 {
|
|
315 ngx_str_t *value;
|
|
316
|
|
317 value = cf->args->elts;
|
|
318
|
|
319 if (value[1].len == 6 && ngx_strcmp(value[1].data, "stderr") == 0) {
|
|
320 cf->cycle->new_log->file->fd = ngx_stderr.fd;
|
|
321 cf->cycle->new_log->file->name.len = 0;
|
|
322 cf->cycle->new_log->file->name.data = NULL;
|
|
323
|
|
324 } else {
|
|
325 cf->cycle->new_log->file->name = value[1];
|
|
326
|
|
327 if (ngx_conf_full_name(cf->cycle, &cf->cycle->new_log->file->name)
|
|
328 == NGX_ERROR)
|
|
329 {
|
|
330 return NGX_CONF_ERROR;
|
|
331 }
|
|
332 }
|
|
333
|
|
334 return ngx_set_error_log_levels(cf, cf->cycle->new_log);
|
|
335 }
|