Mercurial > hg > nginx-quic
view src/core/ngx_conf_file.c @ 5170:6362bd26e4b0
Events: protection from stale events in eventport and devpoll.
Stale write event may happen if read and write events was reported both,
and processing of the read event closed descriptor.
In practice this might result in "sendfilev() failed (134: ..." or
"writev() failed (134: ..." errors when switching to next upstream server.
See report here:
http://mailman.nginx.org/pipermail/nginx/2013-April/038421.html
author | Valentin Bartenev <vbart@nginx.com> |
---|---|
date | Fri, 12 Apr 2013 15:02:33 +0000 |
parents | f941cf265cc5 |
children | ea41bba49e8a |
line wrap: on
line source
/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> #define NGX_CONF_BUFFER 4096 static ngx_int_t ngx_conf_handler(ngx_conf_t *cf, ngx_int_t last); static ngx_int_t ngx_conf_read_token(ngx_conf_t *cf); static ngx_int_t ngx_conf_test_full_name(ngx_str_t *name); static void ngx_conf_flush_files(ngx_cycle_t *cycle); static ngx_command_t ngx_conf_commands[] = { { ngx_string("include"), NGX_ANY_CONF|NGX_CONF_TAKE1, ngx_conf_include, 0, 0, NULL }, ngx_null_command }; ngx_module_t ngx_conf_module = { NGX_MODULE_V1, NULL, /* module context */ ngx_conf_commands, /* module directives */ NGX_CONF_MODULE, /* module type */ NULL, /* init master */ NULL, /* init module */ NULL, /* init process */ NULL, /* init thread */ NULL, /* exit thread */ ngx_conf_flush_files, /* exit process */ NULL, /* exit master */ NGX_MODULE_V1_PADDING }; /* The eight fixed arguments */ static ngx_uint_t argument_number[] = { NGX_CONF_NOARGS, NGX_CONF_TAKE1, NGX_CONF_TAKE2, NGX_CONF_TAKE3, NGX_CONF_TAKE4, NGX_CONF_TAKE5, NGX_CONF_TAKE6, NGX_CONF_TAKE7 }; char * ngx_conf_param(ngx_conf_t *cf) { char *rv; ngx_str_t *param; ngx_buf_t b; ngx_conf_file_t conf_file; param = &cf->cycle->conf_param; if (param->len == 0) { return NGX_CONF_OK; } ngx_memzero(&conf_file, sizeof(ngx_conf_file_t)); ngx_memzero(&b, sizeof(ngx_buf_t)); b.start = param->data; b.pos = param->data; b.last = param->data + param->len; b.end = b.last; b.temporary = 1; conf_file.file.fd = NGX_INVALID_FILE; conf_file.file.name.data = NULL; conf_file.line = 0; cf->conf_file = &conf_file; cf->conf_file->buffer = &b; rv = ngx_conf_parse(cf, NULL); cf->conf_file = NULL; return rv; } char * ngx_conf_parse(ngx_conf_t *cf, ngx_str_t *filename) { char *rv; ngx_fd_t fd; ngx_int_t rc; ngx_buf_t buf; ngx_conf_file_t *prev, conf_file; enum { parse_file = 0, parse_block, parse_param } type; #if (NGX_SUPPRESS_WARN) fd = NGX_INVALID_FILE; prev = NULL; #endif if (filename) { /* open configuration file */ fd = ngx_open_file(filename->data, NGX_FILE_RDONLY, NGX_FILE_OPEN, 0); if (fd == NGX_INVALID_FILE) { ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno, ngx_open_file_n " \"%s\" failed", filename->data); return NGX_CONF_ERROR; } prev = cf->conf_file; cf->conf_file = &conf_file; if (ngx_fd_info(fd, &cf->conf_file->file.info) == NGX_FILE_ERROR) { ngx_log_error(NGX_LOG_EMERG, cf->log, ngx_errno, ngx_fd_info_n " \"%s\" failed", filename->data); } cf->conf_file->buffer = &buf; buf.start = ngx_alloc(NGX_CONF_BUFFER, cf->log); if (buf.start == NULL) { goto failed; } buf.pos = buf.start; buf.last = buf.start; buf.end = buf.last + NGX_CONF_BUFFER; buf.temporary = 1; cf->conf_file->file.fd = fd; cf->conf_file->file.name.len = filename->len; cf->conf_file->file.name.data = filename->data; cf->conf_file->file.offset = 0; cf->conf_file->file.log = cf->log; cf->conf_file->line = 1; type = parse_file; } else if (cf->conf_file->file.fd != NGX_INVALID_FILE) { type = parse_block; } else { type = parse_param; } for ( ;; ) { rc = ngx_conf_read_token(cf); /* * ngx_conf_read_token() may return * * NGX_ERROR there is error * NGX_OK the token terminated by ";" was found * NGX_CONF_BLOCK_START the token terminated by "{" was found * NGX_CONF_BLOCK_DONE the "}" was found * NGX_CONF_FILE_DONE the configuration file is done */ if (rc == NGX_ERROR) { goto done; } if (rc == NGX_CONF_BLOCK_DONE) { if (type != parse_block) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "unexpected \"}\""); goto failed; } goto done; } if (rc == NGX_CONF_FILE_DONE) { if (type == parse_block) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "unexpected end of file, expecting \"}\""); goto failed; } goto done; } if (rc == NGX_CONF_BLOCK_START) { if (type == parse_param) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "block directives are not supported " "in -g option"); goto failed; } } /* rc == NGX_OK || rc == NGX_CONF_BLOCK_START */ if (cf->handler) { /* * the custom handler, i.e., that is used in the http's * "types { ... }" directive */ rv = (*cf->handler)(cf, NULL, cf->handler_conf); if (rv == NGX_CONF_OK) { continue; } if (rv == NGX_CONF_ERROR) { goto failed; } ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, rv); goto failed; } rc = ngx_conf_handler(cf, rc); if (rc == NGX_ERROR) { goto failed; } } failed: rc = NGX_ERROR; done: if (filename) { if (cf->conf_file->buffer->start) { ngx_free(cf->conf_file->buffer->start); } if (ngx_close_file(fd) == NGX_FILE_ERROR) { ngx_log_error(NGX_LOG_ALERT, cf->log, ngx_errno, ngx_close_file_n " %s failed", filename->data); return NGX_CONF_ERROR; } cf->conf_file = prev; } if (rc == NGX_ERROR) { return NGX_CONF_ERROR; } return NGX_CONF_OK; } static ngx_int_t ngx_conf_handler(ngx_conf_t *cf, ngx_int_t last) { char *rv; void *conf, **confp; ngx_uint_t i, found; ngx_str_t *name; ngx_command_t *cmd; name = cf->args->elts; found = 0; for (i = 0; ngx_modules[i]; i++) { cmd = ngx_modules[i]->commands; if (cmd == NULL) { continue; } for ( /* void */ ; cmd->name.len; cmd++) { if (name->len != cmd->name.len) { continue; } if (ngx_strcmp(name->data, cmd->name.data) != 0) { continue; } found = 1; if (ngx_modules[i]->type != NGX_CONF_MODULE && ngx_modules[i]->type != cf->module_type) { continue; } /* is the directive's location right ? */ if (!(cmd->type & cf->cmd_type)) { continue; } if (!(cmd->type & NGX_CONF_BLOCK) && last != NGX_OK) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "directive \"%s\" is not terminated by \";\"", name->data); return NGX_ERROR; } if ((cmd->type & NGX_CONF_BLOCK) && last != NGX_CONF_BLOCK_START) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "directive \"%s\" has no opening \"{\"", name->data); return NGX_ERROR; } /* is the directive's argument count right ? */ if (!(cmd->type & NGX_CONF_ANY)) { if (cmd->type & NGX_CONF_FLAG) { if (cf->args->nelts != 2) { goto invalid; } } else if (cmd->type & NGX_CONF_1MORE) { if (cf->args->nelts < 2) { goto invalid; } } else if (cmd->type & NGX_CONF_2MORE) { if (cf->args->nelts < 3) { goto invalid; } } else if (cf->args->nelts > NGX_CONF_MAX_ARGS) { goto invalid; } else if (!(cmd->type & argument_number[cf->args->nelts - 1])) { goto invalid; } } /* set up the directive's configuration context */ conf = NULL; if (cmd->type & NGX_DIRECT_CONF) { conf = ((void **) cf->ctx)[ngx_modules[i]->index]; } else if (cmd->type & NGX_MAIN_CONF) { conf = &(((void **) cf->ctx)[ngx_modules[i]->index]); } else if (cf->ctx) { confp = *(void **) ((char *) cf->ctx + cmd->conf); if (confp) { conf = confp[ngx_modules[i]->ctx_index]; } } rv = cmd->set(cf, cmd, conf); if (rv == NGX_CONF_OK) { return NGX_OK; } if (rv == NGX_CONF_ERROR) { return NGX_ERROR; } ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "\"%s\" directive %s", name->data, rv); return NGX_ERROR; } } if (found) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "\"%s\" directive is not allowed here", name->data); return NGX_ERROR; } ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "unknown directive \"%s\"", name->data); return NGX_ERROR; invalid: ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid number of arguments in \"%s\" directive", name->data); return NGX_ERROR; } static ngx_int_t ngx_conf_read_token(ngx_conf_t *cf) { u_char *start, ch, *src, *dst; off_t file_size; size_t len; ssize_t n, size; ngx_uint_t found, need_space, last_space, sharp_comment, variable; ngx_uint_t quoted, s_quoted, d_quoted, start_line; ngx_str_t *word; ngx_buf_t *b; found = 0; need_space = 0; last_space = 1; sharp_comment = 0; variable = 0; quoted = 0; s_quoted = 0; d_quoted = 0; cf->args->nelts = 0; b = cf->conf_file->buffer; start = b->pos; start_line = cf->conf_file->line; file_size = ngx_file_size(&cf->conf_file->file.info); for ( ;; ) { if (b->pos >= b->last) { if (cf->conf_file->file.offset >= file_size) { if (cf->args->nelts > 0 || !last_space) { if (cf->conf_file->file.fd == NGX_INVALID_FILE) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "unexpected end of parameter, " "expecting \";\""); return NGX_ERROR; } ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "unexpected end of file, " "expecting \";\" or \"}\""); return NGX_ERROR; } return NGX_CONF_FILE_DONE; } len = b->pos - start; if (len == NGX_CONF_BUFFER) { cf->conf_file->line = start_line; if (d_quoted) { ch = '"'; } else if (s_quoted) { ch = '\''; } else { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "too long parameter \"%*s...\" started", 10, start); return NGX_ERROR; } ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "too long parameter, probably " "missing terminating \"%c\" character", ch); return NGX_ERROR; } if (len) { ngx_memmove(b->start, start, len); } size = (ssize_t) (file_size - cf->conf_file->file.offset); if (size > b->end - (b->start + len)) { size = b->end - (b->start + len); } n = ngx_read_file(&cf->conf_file->file, b->start + len, size, cf->conf_file->file.offset); if (n == NGX_ERROR) { return NGX_ERROR; } if (n != size) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, ngx_read_file_n " returned " "only %z bytes instead of %z", n, size); return NGX_ERROR; } b->pos = b->start + len; b->last = b->pos + n; start = b->start; } ch = *b->pos++; if (ch == LF) { cf->conf_file->line++; if (sharp_comment) { sharp_comment = 0; } } if (sharp_comment) { continue; } if (quoted) { quoted = 0; continue; } if (need_space) { if (ch == ' ' || ch == '\t' || ch == CR || ch == LF) { last_space = 1; need_space = 0; continue; } if (ch == ';') { return NGX_OK; } if (ch == '{') { return NGX_CONF_BLOCK_START; } if (ch == ')') { last_space = 1; need_space = 0; } else { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "unexpected \"%c\"", ch); return NGX_ERROR; } } if (last_space) { if (ch == ' ' || ch == '\t' || ch == CR || ch == LF) { continue; } start = b->pos - 1; start_line = cf->conf_file->line; switch (ch) { case ';': case '{': if (cf->args->nelts == 0) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "unexpected \"%c\"", ch); return NGX_ERROR; } if (ch == '{') { return NGX_CONF_BLOCK_START; } return NGX_OK; case '}': if (cf->args->nelts != 0) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "unexpected \"}\""); return NGX_ERROR; } return NGX_CONF_BLOCK_DONE; case '#': sharp_comment = 1; continue; case '\\': quoted = 1; last_space = 0; continue; case '"': start++; d_quoted = 1; last_space = 0; continue; case '\'': start++; s_quoted = 1; last_space = 0; continue; default: last_space = 0; } } else { if (ch == '{' && variable) { continue; } variable = 0; if (ch == '\\') { quoted = 1; continue; } if (ch == '$') { variable = 1; continue; } if (d_quoted) { if (ch == '"') { d_quoted = 0; need_space = 1; found = 1; } } else if (s_quoted) { if (ch == '\'') { s_quoted = 0; need_space = 1; found = 1; } } else if (ch == ' ' || ch == '\t' || ch == CR || ch == LF || ch == ';' || ch == '{') { last_space = 1; found = 1; } if (found) { word = ngx_array_push(cf->args); if (word == NULL) { return NGX_ERROR; } word->data = ngx_pnalloc(cf->pool, b->pos - start + 1); if (word->data == NULL) { return NGX_ERROR; } for (dst = word->data, src = start, len = 0; src < b->pos - 1; len++) { if (*src == '\\') { switch (src[1]) { case '"': case '\'': case '\\': src++; break; case 't': *dst++ = '\t'; src += 2; continue; case 'r': *dst++ = '\r'; src += 2; continue; case 'n': *dst++ = '\n'; src += 2; continue; } } *dst++ = *src++; } *dst = '\0'; word->len = len; if (ch == ';') { return NGX_OK; } if (ch == '{') { return NGX_CONF_BLOCK_START; } found = 0; } } } } char * ngx_conf_include(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { char *rv; ngx_int_t n; ngx_str_t *value, file, name; ngx_glob_t gl; value = cf->args->elts; file = value[1]; ngx_log_debug1(NGX_LOG_DEBUG_CORE, cf->log, 0, "include %s", file.data); if (ngx_conf_full_name(cf->cycle, &file, 1) != NGX_OK) { return NGX_CONF_ERROR; } if (strpbrk((char *) file.data, "*?[") == NULL) { ngx_log_debug1(NGX_LOG_DEBUG_CORE, cf->log, 0, "include %s", file.data); return ngx_conf_parse(cf, &file); } ngx_memzero(&gl, sizeof(ngx_glob_t)); gl.pattern = file.data; gl.log = cf->log; gl.test = 1; if (ngx_open_glob(&gl) != NGX_OK) { ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno, ngx_open_glob_n " \"%s\" failed", file.data); return NGX_CONF_ERROR; } rv = NGX_CONF_OK; for ( ;; ) { n = ngx_read_glob(&gl, &name); if (n != NGX_OK) { break; } file.len = name.len++; file.data = ngx_pstrdup(cf->pool, &name); ngx_log_debug1(NGX_LOG_DEBUG_CORE, cf->log, 0, "include %s", file.data); rv = ngx_conf_parse(cf, &file); if (rv != NGX_CONF_OK) { break; } } ngx_close_glob(&gl); return rv; } ngx_int_t ngx_conf_full_name(ngx_cycle_t *cycle, ngx_str_t *name, ngx_uint_t conf_prefix) { size_t len; u_char *p, *n, *prefix; ngx_int_t rc; rc = ngx_conf_test_full_name(name); if (rc == NGX_OK) { return rc; } if (conf_prefix) { len = cycle->conf_prefix.len; prefix = cycle->conf_prefix.data; } else { len = cycle->prefix.len; prefix = cycle->prefix.data; } #if (NGX_WIN32) if (rc == 2) { len = rc; } #endif n = ngx_pnalloc(cycle->pool, len + name->len + 1); if (n == NULL) { return NGX_ERROR; } p = ngx_cpymem(n, prefix, len); ngx_cpystrn(p, name->data, name->len + 1); name->len += len; name->data = n; return NGX_OK; } static ngx_int_t ngx_conf_test_full_name(ngx_str_t *name) { #if (NGX_WIN32) u_char c0, c1; c0 = name->data[0]; if (name->len < 2) { if (c0 == '/') { return 2; } return NGX_DECLINED; } c1 = name->data[1]; if (c1 == ':') { c0 |= 0x20; if ((c0 >= 'a' && c0 <= 'z')) { return NGX_OK; } return NGX_DECLINED; } if (c1 == '/') { return NGX_OK; } if (c0 == '/') { return 2; } return NGX_DECLINED; #else if (name->data[0] == '/') { return NGX_OK; } return NGX_DECLINED; #endif } ngx_open_file_t * ngx_conf_open_file(ngx_cycle_t *cycle, ngx_str_t *name) { ngx_str_t full; ngx_uint_t i; ngx_list_part_t *part; ngx_open_file_t *file; #if (NGX_SUPPRESS_WARN) ngx_str_null(&full); #endif if (name->len) { full = *name; if (ngx_conf_full_name(cycle, &full, 0) != NGX_OK) { return NULL; } part = &cycle->open_files.part; file = part->elts; for (i = 0; /* void */ ; i++) { if (i >= part->nelts) { if (part->next == NULL) { break; } part = part->next; file = part->elts; i = 0; } if (full.len != file[i].name.len) { continue; } if (ngx_strcmp(full.data, file[i].name.data) == 0) { return &file[i]; } } } file = ngx_list_push(&cycle->open_files); if (file == NULL) { return NULL; } if (name->len) { file->fd = NGX_INVALID_FILE; file->name = full; } else { file->fd = ngx_stderr; file->name = *name; } file->flush = NULL; file->data = NULL; return file; } static void ngx_conf_flush_files(ngx_cycle_t *cycle) { ngx_uint_t i; ngx_list_part_t *part; ngx_open_file_t *file; ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0, "flush files"); part = &cycle->open_files.part; file = part->elts; for (i = 0; /* void */ ; i++) { if (i >= part->nelts) { if (part->next == NULL) { break; } part = part->next; file = part->elts; i = 0; } if (file[i].flush) { file[i].flush(&file[i], cycle->log); } } } void ngx_cdecl ngx_conf_log_error(ngx_uint_t level, ngx_conf_t *cf, ngx_err_t err, const char *fmt, ...) { u_char errstr[NGX_MAX_CONF_ERRSTR], *p, *last; va_list args; last = errstr + NGX_MAX_CONF_ERRSTR; va_start(args, fmt); p = ngx_vslprintf(errstr, last, fmt, args); va_end(args); if (err) { p = ngx_log_errno(p, last, err); } if (cf->conf_file == NULL) { ngx_log_error(level, cf->log, 0, "%*s", p - errstr, errstr); return; } if (cf->conf_file->file.fd == NGX_INVALID_FILE) { ngx_log_error(level, cf->log, 0, "%*s in command line", p - errstr, errstr); return; } ngx_log_error(level, cf->log, 0, "%*s in %s:%ui", p - errstr, errstr, cf->conf_file->file.name.data, cf->conf_file->line); } char * ngx_conf_set_flag_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { char *p = conf; ngx_str_t *value; ngx_flag_t *fp; ngx_conf_post_t *post; fp = (ngx_flag_t *) (p + cmd->offset); if (*fp != NGX_CONF_UNSET) { return "is duplicate"; } value = cf->args->elts; if (ngx_strcasecmp(value[1].data, (u_char *) "on") == 0) { *fp = 1; } else if (ngx_strcasecmp(value[1].data, (u_char *) "off") == 0) { *fp = 0; } else { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid value \"%s\" in \"%s\" directive, " "it must be \"on\" or \"off\"", value[1].data, cmd->name.data); return NGX_CONF_ERROR; } if (cmd->post) { post = cmd->post; return post->post_handler(cf, post, fp); } return NGX_CONF_OK; } char * ngx_conf_set_str_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { char *p = conf; ngx_str_t *field, *value; ngx_conf_post_t *post; field = (ngx_str_t *) (p + cmd->offset); if (field->data) { return "is duplicate"; } value = cf->args->elts; *field = value[1]; if (cmd->post) { post = cmd->post; return post->post_handler(cf, post, field); } return NGX_CONF_OK; } char * ngx_conf_set_str_array_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { char *p = conf; ngx_str_t *value, *s; ngx_array_t **a; ngx_conf_post_t *post; a = (ngx_array_t **) (p + cmd->offset); if (*a == NGX_CONF_UNSET_PTR) { *a = ngx_array_create(cf->pool, 4, sizeof(ngx_str_t)); if (*a == NULL) { return NGX_CONF_ERROR; } } s = ngx_array_push(*a); if (s == NULL) { return NGX_CONF_ERROR; } value = cf->args->elts; *s = value[1]; if (cmd->post) { post = cmd->post; return post->post_handler(cf, post, s); } return NGX_CONF_OK; } char * ngx_conf_set_keyval_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { char *p = conf; ngx_str_t *value; ngx_array_t **a; ngx_keyval_t *kv; ngx_conf_post_t *post; a = (ngx_array_t **) (p + cmd->offset); if (*a == NULL) { *a = ngx_array_create(cf->pool, 4, sizeof(ngx_keyval_t)); if (*a == NULL) { return NGX_CONF_ERROR; } } kv = ngx_array_push(*a); if (kv == NULL) { return NGX_CONF_ERROR; } value = cf->args->elts; kv->key = value[1]; kv->value = value[2]; if (cmd->post) { post = cmd->post; return post->post_handler(cf, post, kv); } return NGX_CONF_OK; } char * ngx_conf_set_num_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { char *p = conf; ngx_int_t *np; ngx_str_t *value; ngx_conf_post_t *post; np = (ngx_int_t *) (p + cmd->offset); if (*np != NGX_CONF_UNSET) { return "is duplicate"; } value = cf->args->elts; *np = ngx_atoi(value[1].data, value[1].len); if (*np == NGX_ERROR) { return "invalid number"; } if (cmd->post) { post = cmd->post; return post->post_handler(cf, post, np); } return NGX_CONF_OK; } char * ngx_conf_set_size_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { char *p = conf; size_t *sp; ngx_str_t *value; ngx_conf_post_t *post; sp = (size_t *) (p + cmd->offset); if (*sp != NGX_CONF_UNSET_SIZE) { return "is duplicate"; } value = cf->args->elts; *sp = ngx_parse_size(&value[1]); if (*sp == (size_t) NGX_ERROR) { return "invalid value"; } if (cmd->post) { post = cmd->post; return post->post_handler(cf, post, sp); } return NGX_CONF_OK; } char * ngx_conf_set_off_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { char *p = conf; off_t *op; ngx_str_t *value; ngx_conf_post_t *post; op = (off_t *) (p + cmd->offset); if (*op != NGX_CONF_UNSET) { return "is duplicate"; } value = cf->args->elts; *op = ngx_parse_offset(&value[1]); if (*op == (off_t) NGX_ERROR) { return "invalid value"; } if (cmd->post) { post = cmd->post; return post->post_handler(cf, post, op); } return NGX_CONF_OK; } char * ngx_conf_set_msec_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { char *p = conf; ngx_msec_t *msp; ngx_str_t *value; ngx_conf_post_t *post; msp = (ngx_msec_t *) (p + cmd->offset); if (*msp != NGX_CONF_UNSET_MSEC) { return "is duplicate"; } value = cf->args->elts; *msp = ngx_parse_time(&value[1], 0); if (*msp == (ngx_msec_t) NGX_ERROR) { return "invalid value"; } if (cmd->post) { post = cmd->post; return post->post_handler(cf, post, msp); } return NGX_CONF_OK; } char * ngx_conf_set_sec_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { char *p = conf; time_t *sp; ngx_str_t *value; ngx_conf_post_t *post; sp = (time_t *) (p + cmd->offset); if (*sp != NGX_CONF_UNSET) { return "is duplicate"; } value = cf->args->elts; *sp = ngx_parse_time(&value[1], 1); if (*sp == (time_t) NGX_ERROR) { return "invalid value"; } if (cmd->post) { post = cmd->post; return post->post_handler(cf, post, sp); } return NGX_CONF_OK; } char * ngx_conf_set_bufs_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { char *p = conf; ngx_str_t *value; ngx_bufs_t *bufs; bufs = (ngx_bufs_t *) (p + cmd->offset); if (bufs->num) { return "is duplicate"; } value = cf->args->elts; bufs->num = ngx_atoi(value[1].data, value[1].len); if (bufs->num == NGX_ERROR || bufs->num == 0) { return "invalid value"; } bufs->size = ngx_parse_size(&value[2]); if (bufs->size == (size_t) NGX_ERROR || bufs->size == 0) { return "invalid value"; } return NGX_CONF_OK; } char * ngx_conf_set_enum_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { char *p = conf; ngx_uint_t *np, i; ngx_str_t *value; ngx_conf_enum_t *e; np = (ngx_uint_t *) (p + cmd->offset); if (*np != NGX_CONF_UNSET_UINT) { return "is duplicate"; } value = cf->args->elts; e = cmd->post; for (i = 0; e[i].name.len != 0; i++) { if (e[i].name.len != value[1].len || ngx_strcasecmp(e[i].name.data, value[1].data) != 0) { continue; } *np = e[i].value; return NGX_CONF_OK; } ngx_conf_log_error(NGX_LOG_WARN, cf, 0, "invalid value \"%s\"", value[1].data); return NGX_CONF_ERROR; } char * ngx_conf_set_bitmask_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { char *p = conf; ngx_uint_t *np, i, m; ngx_str_t *value; ngx_conf_bitmask_t *mask; np = (ngx_uint_t *) (p + cmd->offset); value = cf->args->elts; mask = cmd->post; for (i = 1; i < cf->args->nelts; i++) { for (m = 0; mask[m].name.len != 0; m++) { if (mask[m].name.len != value[i].len || ngx_strcasecmp(mask[m].name.data, value[i].data) != 0) { continue; } if (*np & mask[m].mask) { ngx_conf_log_error(NGX_LOG_WARN, cf, 0, "duplicate value \"%s\"", value[i].data); } else { *np |= mask[m].mask; } break; } if (mask[m].name.len == 0) { ngx_conf_log_error(NGX_LOG_WARN, cf, 0, "invalid value \"%s\"", value[i].data); return NGX_CONF_ERROR; } } return NGX_CONF_OK; } #if 0 char * ngx_conf_unsupported(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) { return "unsupported on this platform"; } #endif char * ngx_conf_deprecated(ngx_conf_t *cf, void *post, void *data) { ngx_conf_deprecated_t *d = post; ngx_conf_log_error(NGX_LOG_WARN, cf, 0, "the \"%s\" directive is deprecated, " "use the \"%s\" directive instead", d->old_name, d->new_name); return NGX_CONF_OK; } char * ngx_conf_check_num_bounds(ngx_conf_t *cf, void *post, void *data) { ngx_conf_num_bounds_t *bounds = post; ngx_int_t *np = data; if (bounds->high == -1) { if (*np >= bounds->low) { return NGX_CONF_OK; } ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "value must be equal to or greater than %i", bounds->low); return NGX_CONF_ERROR; } if (*np >= bounds->low && *np <= bounds->high) { return NGX_CONF_OK; } ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "value must be between %i and %i", bounds->low, bounds->high); return NGX_CONF_ERROR; }