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/* * ProFTPD - FTP server daemon * Copyright (c) 2004-2016 The ProFTPD Project team * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA. * * As a special exemption, The ProFTPD Project team and other respective * copyright holders give permission to link this program with OpenSSL, and * distribute the resulting executable, without including the source code for * OpenSSL in the source distribution. */ /* Configuration parser */ #ifndef PR_PARSER_H #define PR_PARSER_H /* Prepares the parser, allocating any necessary internal resources from * the given pool. If provided, parsed_servers will, after parsing is * complete, contain a pointer to the list of configured server_rec * server configurations. */ int pr_parser_prepare(pool *p, xaset_t **parsed_servers); /* Clears any internal state of the parser. This function should always * be called after any parsing. */ int pr_parser_cleanup(void); /* Called to push a "start-of-context" configuration marker onto the * parser stack. The name of the configuration context (.e.g "Directory" * or "Anonymous") is provided by the name parameter. */ config_rec *pr_parser_config_ctxt_open(const char *name); /* Called to push an "end-of-context" configuration marker onto the * parser stack. If the parser determines that the configuration * context being closed is empty, it will remove the entire context from * the parser stacks: empty contexts are superfluous. If this happens, * the isempty parameter, if non-NULL, will be set to TRUE. */ config_rec *pr_parser_config_ctxt_close(int *isempty); /* Push the config_rec onto the parser stack directly. This function can * be used, instead of the open/close semantics, for cases where the config_rec * is constructed by means other than file parsing. */ int pr_parser_config_ctxt_push(config_rec *c); /* Returns a pointer to the current configuration record on the parser * configuration stack. */ config_rec *pr_parser_config_ctxt_get(void); /* Returns the line number of the configuration stream being parsed. */ unsigned int pr_parser_get_lineno(void); /* This is the main function to be used by consumers of the Parser * API. Given a pool, a path to a file containing configuration text, * and a starting configuration context, the function will open and * parse the given data. * * In almost all cases, the starting configuration context given by the * start parameter is NULL, indicating that the path being parsed is * not part of any existing configuration tree. The start parameter will * be non-NULL in the case of files such as .ftpaccess files, which are * part of the existing configuration tree. * * The flags parameter is used to indicate to the parser what type of * stream is being parsed. The PR_PARSER_FL_DYNAMIC_CONFIG flag is * used when handling .ftpaccess files, so that the function will treat * unknown directives as warnings, rather than as fatal errors. */ int pr_parser_parse_file(pool *p, const char *path, config_rec *start, int flags); #define PR_PARSER_FL_DYNAMIC_CONFIG 0x0001 /* The dispatching of configuration data to the registered configuration * handlers is done using a cmd_rec. This function parses the given line of * text, then allocates a cmd_rec from the given pool p and populates the * struct with data from the line of text. */ cmd_rec *pr_parser_parse_line(pool *p, const char *text, size_t text_len); /* This convenience function reads the next line from the configuration * stream, performing any necessary transformations on the text (e.g. * skipping comments, trimming leading and trailing spaces, etc). NULL * is returned if there are no more lines of configuration text in the * the stream. * * The configuration stream itself is not provided by the caller deliberately; * this allows callers who do not have access to the configuration stream * to read data from it. */ char *pr_parser_read_line(char *buf, size_t bufsz); /* Called to push a "start-of-server" configuration marker onto the * parser stack. The name of the server context, usually a string * containing a DNS name or an IP address, is provided by the addrstr * parameter. */ server_rec *pr_parser_server_ctxt_open(const char *addrstr); /* Called to push an "end-of-server" configuration record onto the * parser stack. If the parser determines that the server context being * closed is empty, it will remove the entire context from the parser stacks: * empty contexts are superfluous. */ server_rec *pr_parser_server_ctxt_close(void); /* Push the server_rec onto the parser stack directly. This function can * be used, instead of the open/close semantics, for cases where the server_rec * is constructed by means other than file parsing. */ int pr_parser_server_ctxt_push(server_rec *s); /* Returns a pointer to the current server record on the parser server * stack. */ server_rec *pr_parser_server_ctxt_get(void); /* Configure optional Include behavior. Returns the previously set options. */ unsigned long pr_parser_set_include_opts(unsigned long opts); #define PR_PARSER_INCLUDE_OPT_ALLOW_SYMLINKS 0x0001 #define PR_PARSER_INCLUDE_OPT_IGNORE_TMP_FILES 0x0002 #define PR_PARSER_INCLUDE_OPT_IGNORE_WILDCARDS 0x0004 /* Internal use only */ int parse_config_path(pool *p, const char *path); int parse_config_path2(pool *p, const char *path, unsigned int depth); #endif /* PR_PARSER_H */