Mercurial > hg > nginx-ranges
view src/core/ngx_log.c @ 34:aab2ea7c0458 NGINX_0_1_17
nginx 0.1.17
*) Change: the ngx_http_rewrite_module was rewritten from the scratch.
Now it is possible to redirect, to return the error codes, to check
the variables and referrers. The directives can be used inside
locations. The redirect directive was canceled.
*) Feature: the ngx_http_geo_module.
*) Feature: the proxy_set_x_var and fastcgi_set_var directives.
*) Bugfix: the location configuration with "=" modifier may be used in
another location.
*) Bugfix: the correct content type was set only for requests that use
small caps letters in extension.
*) Bugfix: if the proxy_pass or fastcgi_pass directives were set in the
location, and access was denied, and the error was redirected to a
static page, then the segmentation fault occurred.
*) Bugfix: if in a proxied "Location" header was a relative URL, then a
host name and a slash were added to them; bug appeared in 0.1.14.
*) Bugfix: the system error message was not logged on Linux.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Thu, 03 Feb 2005 00:00:00 +0300 |
parents | da8c190bdaba |
children | 41ccba1aba45 |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> static void ngx_log_write(ngx_log_t *log, u_char *errstr, size_t len); static char *ngx_set_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static ngx_command_t ngx_errlog_commands[] = { {ngx_string("error_log"), NGX_MAIN_CONF|NGX_CONF_1MORE, ngx_set_error_log, 0, 0, NULL}, ngx_null_command }; static ngx_core_module_t ngx_errlog_module_ctx = { ngx_string("errlog"), NULL, NULL }; ngx_module_t ngx_errlog_module = { NGX_MODULE, &ngx_errlog_module_ctx, /* module context */ ngx_errlog_commands, /* module directives */ NGX_CORE_MODULE, /* module type */ NULL, /* init module */ NULL /* init process */ }; static ngx_log_t ngx_log; static ngx_open_file_t ngx_stderr; static const char *err_levels[] = { "stderr", "emerg", "alert", "crit", "error", "warn", "notice", "info", "debug" }; static const char *debug_levels[] = { "debug_core", "debug_alloc", "debug_mutex", "debug_event", "debug_http", "debug_imap" }; #if (NGX_HAVE_VARIADIC_MACROS) void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, const char *fmt, ...) #else void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, const char *fmt, va_list args) #endif { #if (NGX_HAVE_VARIADIC_MACROS) va_list args; #endif u_char errstr[NGX_MAX_ERROR_STR], *p, *last; if (log->file->fd == NGX_INVALID_FILE) { return; } last = errstr + NGX_MAX_ERROR_STR; ngx_memcpy(errstr, ngx_cached_err_log_time.data, ngx_cached_err_log_time.len); p = errstr + ngx_cached_err_log_time.len; p = ngx_sprintf(p, " [%s] ", err_levels[level]); /* pid#tid */ p = ngx_sprintf(p, "%P#" NGX_TID_T_FMT ": ", ngx_log_pid, ngx_log_tid); if (log->connection) { p = ngx_sprintf(p, "*%ui ", log->connection); } #if 0 if (log->data && *(int *) log->data != -1) { p = ngx_sprintf(p, "*%ud ", *(u_int *) log->data); } #endif #if (NGX_HAVE_VARIADIC_MACROS) va_start(args, fmt); p = ngx_vsnprintf(p, last - p, fmt, args); va_end(args); #else p = ngx_vsnprintf(p, last - p, fmt, args); #endif if (err) { if (p > last - 50) { /* leave a space for an error code */ p = last - 50; *p++ = '.'; *p++ = '.'; *p++ = '.'; } #if (NGX_WIN32) if ((unsigned) err >= 0x80000000) { p = ngx_snprintf(p, last - p, " (%Xd: ", err); } else { p = ngx_snprintf(p, last - p, " (%d: ", err); } #else p = ngx_snprintf(p, last - p, " (%d: ", err); #endif p = ngx_strerror_r(err, p, last - p); if (p < last) { *p++ = ')'; } } if (level != NGX_LOG_DEBUG && log->handler) { p = log->handler(log, p, last - p); } ngx_log_write(log, errstr, p - errstr); } static void ngx_log_write(ngx_log_t *log, u_char *errstr, size_t len) { #if (NGX_WIN32) u_long written; if (len >= NGX_MAX_ERROR_STR - 1) { len = NGX_MAX_ERROR_STR - 2; } errstr[len++] = CR; errstr[len++] = LF; WriteFile(log->file->fd, errstr, len, &written, NULL); #if 0 if (WriteFile(log->file->fd, errstr, len, &written, NULL) == 0) { ngx_message_box("nginx", MB_OK, ngx_errno, "WriteFile() failed"); } #endif #else if (len == NGX_MAX_ERROR_STR) { len--; } errstr[len++] = LF; write(log->file->fd, errstr, len); #endif } #if !(NGX_HAVE_VARIADIC_MACROS) void ngx_log_error(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, const char *fmt, ...) { va_list args; if (log->log_level >= level) { va_start(args, fmt); ngx_log_error_core(level, log, err, fmt, args); va_end(args); } } void ngx_log_debug_core(ngx_log_t *log, ngx_err_t err, const char *fmt, ...) { va_list args; va_start(args, fmt); ngx_log_error_core(NGX_LOG_DEBUG, log, err, fmt, args); va_end(args); } #endif ngx_log_t *ngx_log_init() { ngx_log.file = &ngx_stderr; ngx_log.log_level = NGX_LOG_NOTICE; #if (NGX_WIN32) ngx_stderr.fd = ngx_open_file(NGX_ERROR_LOG_PATH, NGX_FILE_RDWR, NGX_FILE_CREATE_OR_OPEN|NGX_FILE_APPEND); if (ngx_stderr.fd == NGX_INVALID_FILE) { ngx_message_box("nginx", MB_OK, ngx_errno, "Could not open error log file: " ngx_open_file_n " \"" NGX_ERROR_LOG_PATH "\" failed"); return NULL; } if (ngx_file_append_mode(ngx_stderr.fd) == NGX_ERROR) { ngx_message_box("nginx", MB_OK, ngx_errno, "Could not open error log file: " ngx_file_append_mode_n " \"" NGX_ERROR_LOG_PATH "\" failed"); return NULL; } #else ngx_stderr.fd = STDERR_FILENO; #endif return &ngx_log; } ngx_log_t *ngx_log_create_errlog(ngx_cycle_t *cycle, ngx_array_t *args) { ngx_log_t *log; ngx_str_t *value, *name; if (args) { value = args->elts; name = &value[1]; } else { name = NULL; } if (!(log = ngx_pcalloc(cycle->pool, sizeof(ngx_log_t)))) { return NULL; } if (!(log->file = ngx_conf_open_file(cycle, name))) { return NULL; } return log; } char *ngx_set_error_log_levels(ngx_conf_t *cf, ngx_log_t *log) { ngx_uint_t i, n, d; ngx_str_t *value; value = cf->args->elts; for (i = 2; i < cf->args->nelts; i++) { for (n = 1; n <= NGX_LOG_DEBUG; n++) { if (ngx_strcmp(value[i].data, err_levels[n]) == 0) { if (log->log_level != 0) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid log level \"%s\"", value[i].data); return NGX_CONF_ERROR; } log->log_level = n; continue; } } for (n = 0, d = NGX_LOG_DEBUG_FIRST; d <= NGX_LOG_DEBUG_LAST; d <<= 1) { if (ngx_strcmp(value[i].data, debug_levels[n++]) == 0) { if (log->log_level & ~NGX_LOG_DEBUG_ALL) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid log level \"%s\"", value[i].data); return NGX_CONF_ERROR; } log->log_level |= d; } } if (log->log_level == 0) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid log level \"%s\"", value[i].data); return NGX_CONF_ERROR; } } if (log->log_level == NGX_LOG_DEBUG) { log->log_level = NGX_LOG_DEBUG_ALL; } return NGX_CONF_OK; } static char *ngx_set_error_log(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { ngx_str_t *value; value = cf->args->elts; if (value[1].len == 6 && ngx_strcmp(value[1].data, "stderr") == 0) { cf->cycle->new_log->file->fd = ngx_stderr.fd; cf->cycle->new_log->file->name.len = 0; cf->cycle->new_log->file->name.data = NULL; } else { cf->cycle->new_log->file->name = value[1]; if (ngx_conf_full_name(cf->cycle, &cf->cycle->new_log->file->name) == NGX_ERROR) { return NGX_CONF_ERROR; } } return ngx_set_error_log_levels(cf, cf->cycle->new_log); }