2 * Copyright (C) 2006-2009 Andre Noll <maan@systemlinux.org>
4 * Licensed under the GPL v2. For licencing details see COPYING.
8 /** \file net.h exported symbols from net.c */
11 * the buffer size of the sun_path component of struct sockaddr_un
13 * While glibc doesn't define \p UNIX_PATH_MAX, it
14 * documents it has being limited to 108 bytes.
17 #define UNIX_PATH_MAX 108
20 /** \cond Userland defines for Linux DCCP support. */
22 #define IPPROTO_DCCP 33 /**< IANA assigned value */
23 #define SOCK_DCCP 6 /**< Linux socket type */
24 #define SOL_DCCP 269 /**< Linux socket level */
30 * Functions to parse and validate (parts of) URLs.
32 extern char *parse_cidr(const char *cidr,
33 char *addr, ssize_t addrlen, int32_t *netmask);
34 extern char *parse_url(const char *url,
35 char *host, ssize_t hostlen, int32_t *port);
36 extern const char *stringify_port(int port, const char *transport);
38 * Ensure that string conforms to the IPv4 address format.
40 * \param address The address string to check.
42 * \return 1 if \a address conforms to the IPv4 address format, else 0.
44 _static_inline_ bool is_valid_ipv4_address(const char *address)
46 struct in_addr test_it;
48 return inet_pton(AF_INET, address, &test_it) != 0;
52 * Ensure that string conforms to IPv6 address format.
54 * \param address The address string to check.
56 * \return 1 if string has a valid IPv6 address syntax, 0 if not.
59 _static_inline_ bool is_valid_ipv6_address(const char *address)
61 struct in6_addr test_it;
63 return inet_pton(AF_INET6, address, &test_it) != 0;
67 * Generic socket creation (passive and active sockets).
69 extern int makesock(unsigned l3type, unsigned l4type, int passive,
70 const char *host, unsigned short port_number);
71 extern struct in_addr extract_v4_addr(const struct sockaddr_storage *ss);
74 * Functions to support listening sockets.
76 /** How many pending connections queue of a listening server will hold. */
78 extern int para_listen(unsigned l3type, unsigned l4type, unsigned short port);
80 /** Pretty-printing of IPv4/6 socket addresses */
81 extern char *local_name(int sockfd);
82 extern char *remote_name(int sockfd);
84 int send_bin_buffer(int, const char *, size_t);
85 int send_buffer(int, const char *);
86 __printf_2_3 int send_va_buffer(int fd, const char *fmt, ...);
88 int recv_bin_buffer(int fd, char *buf, size_t size);
89 int recv_buffer(int fd, char *buf, size_t size);
91 int para_accept(int, void *addr, socklen_t size);
92 int create_local_socket(const char *name, struct sockaddr_un *unix_addr,
94 int create_remote_socket(const char *name);
95 int recv_cred_buffer(int, char *, size_t);
96 ssize_t send_cred_buffer(int, char*);
97 int recv_pattern(int fd, const char *pattern, size_t bufsize);