Mercurial > hg > nginx-quic
view src/core/ngx_conf_file.c @ 52:9f2728644651
nginx-0.0.1-2003-01-24-19:09:40 import
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Fri, 24 Jan 2003 16:09:40 +0000 |
parents | f84a648211f4 |
children | 27b628ef907e |
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#include <ngx_config.h> #include <ngx_core.h> #include <ngx_conf_file.h> static int argument_number[] = { NGX_CONF_NOARGS, NGX_CONF_TAKE1, NGX_CONF_TAKE2 }; static int ngx_conf_read_token(ngx_conf_t *cf); char *ngx_conf_parse(ngx_conf_t *cf, ngx_str_t *filename) { int i, rc, found; char *rv; void *conf, **pconf; ngx_str_t *name; ngx_fd_t fd; ngx_conf_file_t *prev; ngx_command_t *cmd; if (filename) { fd = ngx_open_file(filename->data, NGX_FILE_RDONLY); if (fd == NGX_INVALID_FILE) { ngx_log_error(NGX_LOG_EMERG, cf->log, ngx_errno, "ngx_conf_file: " ngx_open_file_n " %s failed", filename->data); return NGX_CONF_ERROR; } prev = cf->conf_file; ngx_test_null(cf->conf_file, ngx_palloc(cf->pool, sizeof(ngx_conf_file_t)), NGX_CONF_ERROR); if (ngx_stat_fd(fd, &cf->conf_file->file.info) == -1) { ngx_log_error(NGX_LOG_EMERG, cf->log, ngx_errno, "ngx_conf_file: " ngx_stat_fd_n " %s failed", filename->data); } ngx_test_null(cf->conf_file->hunk, ngx_create_temp_hunk(cf->pool, 1024, 0, 0), NGX_CONF_ERROR); 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.log = cf->log;; cf->conf_file->line = 1; } for ( ;; ) { rc = ngx_conf_read_token(cf); /* NGX_OK, NGX_ERROR, NGX_CONF_FILE_DONE, NGX_CONF_BLOCK_DONE */ ngx_log_debug(cf->log, "token %d" _ rc); if (rc == NGX_ERROR) { return NGX_CONF_ERROR; } if (rc != NGX_OK) { return NGX_CONF_OK; } if (cf->handler) { if ((*cf->handler)(cf) == NGX_CONF_ERROR) { return NGX_CONF_ERROR; } continue; } name = (ngx_str_t *) cf->args->elts; found = 0; for (i = 0; !found && ngx_modules[i]; i++) { if (ngx_modules[i]->type != NGX_CONF_MODULE_TYPE && ngx_modules[i]->type != cf->type) { continue; } cmd = ngx_modules[i]->commands; if (cmd == NULL) { continue; } while (cmd->name.len) { if (name->len == cmd->name.len && ngx_strcmp(name->data, cmd->name.data) == 0) { ngx_log_debug(cf->log, "command '%s'" _ cmd->name.data); if (!(cmd->type & NGX_CONF_ANY) && !(cmd->type & argument_number[cf->args->nelts - 1])) { ngx_log_error(NGX_LOG_EMERG, cf->log, 0, "invalid number arguments in " "directive \"%s\" in %s:%d", name->data, cf->conf_file->file.name.data, cf->conf_file->line); return NGX_CONF_ERROR; } conf = NULL; if (cf->ctx) { pconf = *(void **) ((char *) cf->ctx + cmd->conf); if (pconf) { conf = pconf[ngx_modules[i]->index]; } } rv = cmd->set(cf, cmd, conf); ngx_log_debug(cf->log, "rv: %d" _ rv); if (rv == NGX_CONF_OK) { found = 1; break; } else if (rv == NGX_CONF_ERROR) { return NGX_CONF_ERROR; } else { ngx_log_error(NGX_LOG_EMERG, cf->log, 0, "%s", rv); return NGX_CONF_ERROR; } } cmd++; } } if (!found) { ngx_log_error(NGX_LOG_EMERG, cf->log, 0, "unknown directive \"%s\" in %s:%d", name->data, cf->conf_file->file.name.data, cf->conf_file->line); return NGX_CONF_ERROR; } } if (filename) { cf->conf_file = prev; if (ngx_close_file(fd) == NGX_FILE_ERROR) { ngx_log_error(NGX_LOG_ERR, cf->log, ngx_errno, ngx_close_file_n " %s failed", cf->conf_file->file.name.data); return NGX_CONF_ERROR; } } return NGX_CONF_OK; } static int ngx_conf_read_token(ngx_conf_t *cf) { char *start, ch, *src, *dst; int len; int found, need_space, last_space, sharp_comment; int quoted, s_quoted, d_quoted; ssize_t n; ngx_str_t *word; ngx_hunk_t *h; found = 0; need_space = 0; last_space = 1; sharp_comment = 0; quoted = s_quoted = d_quoted = 0; cf->args->nelts = 0; h = cf->conf_file->hunk; start = h->pos.mem; ngx_log_debug(cf->log, "TOKEN START"); for ( ;; ) { if (h->pos.mem >= h->last.mem) { if (cf->conf_file->file.offset >= ngx_file_size(cf->conf_file->file.info)) { return NGX_CONF_FILE_DONE; } if (h->pos.mem - start) { ngx_memcpy(h->start, start, h->pos.mem - start); } n = ngx_read_file(&cf->conf_file->file, h->start + (h->pos.mem - start), h->end - (h->start + (h->pos.mem - start)), cf->conf_file->file.offset); if (n == NGX_ERROR) { return NGX_ERROR; } h->pos.mem = h->start + (h->pos.mem - start); start = h->start; h->last.mem = h->pos.mem + n; } ch = *h->pos.mem++; #if 0 ngx_log_debug(cf->log, "%d:%d:%d:%d:%d '%c'" _ last_space _ need_space _ quoted _ s_quoted _ d_quoted _ ch); #endif 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 == ';' || ch == '{') { return NGX_OK; } return NGX_ERROR; } if (last_space) { if (ch == ' ' || ch == '\t' || ch == CR || ch == LF) { continue; } start = h->pos.mem - 1; switch (ch) { case ';': case '{': if (cf->args->nelts == 0) { ngx_log_error(NGX_LOG_EMERG, cf->log, 0, "unexpected '%c' in %s:%d", ch, cf->conf_file->file.name.data, cf->conf_file->line); return NGX_ERROR; } return NGX_OK; case '}': if (cf->args->nelts > 0) { ngx_log_error(NGX_LOG_EMERG, cf->log, 0, "unexpected '}' in %s:%d", cf->conf_file->file.name.data, cf->conf_file->line); 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 == '\\') { quoted = 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) { ngx_test_null(word, ngx_push_array(cf->args), NGX_ERROR); ngx_test_null(word->data, ngx_palloc(cf->pool, h->pos.mem - start + 1), NGX_ERROR); for (dst = word->data, src = start, len = 0; src < h->pos.mem - 1; len++) { if (*src == '\\') { src++; } *dst++ = *src++; } *dst = '\0'; word->len = len; ngx_log_debug(cf->log, "FOUND %d:'%s'" _ word->len _ word->data); if (ch == ';' || ch == '{') { return NGX_OK; } found = 0; } } } } char *ngx_conf_set_str_slot(ngx_conf_t *cf, ngx_command_t *cmd, char *conf) { ngx_str_t *field, *value; field = (ngx_str_t *) conf + cmd->offset; value = (ngx_str_t *) cf->args->elts; field->len = value->len; field->data = value->data; return NGX_CONF_OK; } char *ngx_conf_set_size_slot(ngx_conf_t *cf, ngx_command_t *cmd, char *conf) { int size; ngx_str_t *value; value = (ngx_str_t *) cf->args->elts; size = atoi(value[1].data); if (size < 0) { return "value must be greater or equal to zero"; } *(int *) (conf + cmd->offset) = size; return NGX_CONF_OK; } char *ngx_conf_set_time_slot(ngx_conf_t *cf, ngx_command_t *cmd, char *conf) { int size; ngx_str_t *value; value = (ngx_str_t *) cf->args->elts; size = atoi(value[1].data); if (size < 0) { return "value must be greater or equal to zero"; } *(int *) (conf + cmd->offset) = size; return NGX_CONF_OK; }