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/**
* mds — A micro-display server
* Copyright © 2014, 2015, 2016, 2017 Mattias Andrée (m@maandree.se)
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef MDS_LIBMDSCLIENT_ADDRESS_H
#define MDS_LIBMDSCLIENT_ADDRESS_H
#include <sys/socket.h>
/**
* The address of the display, parsed into arguments
*/
typedef struct libmds_display_address
{
/**
* The domain (protocol family), that is
* the first argument for socket(2), a
* value whose constant is prefixed PF_;
* -1 if not detected
*/
int domain;
/**
* The socket type, that is the second
* argument for socket(2), a value whose
* constant is prefixed SOCK_; -1 if not
* detected
*/
int type;
/**
* The protocol, that is the third
* argument for socket(2), a value whose
* constant is affixed PROTO_ (zero
* for the default); -1 if not detected
*/
int protocol;
/**
* The address, `NULL` if not detected,
* you are responsible for freeing this
*/
struct sockaddr *address;
/**
* The size of `address`, may be set
* even if `address` is `NULL`
*/
socklen_t address_len;
/**
* Code for an error that has occured
* when parsing the address, whose
* description can be retrieved using
* `gia_strerror`, zero if none
*/
int gai_error;
} libmds_display_address_t;
/**
* Parse a display address string
*
* @param display The address in MDS_DISPLAY-formatting, must not be `NULL`
* @param address Output parameter for parsed address, must not be `NULL`
* @return Zero on success, even if parsing failed, -1 on error,
* `errno` will have been set accordinly on error
*
* @throws ENOMEM Out of memory. Possibly, the application hit the
* RLIMIT_AS or RLIMIT_DATA limit described in getrlimit(2).
* @throws ENAMETOOLONG The filename of the target socket is too long
*/
__attribute__((nonnull))
int libmds_parse_display_address(const char *restrict display, libmds_display_address_t *restrict address);
#endif
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