965273a86073ff82d4533794093e0aa7aedb916c
2 * Copyright (C) 2006-2007 Andre Noll <maan@systemlinux.org>
4 * Licensed under the GPL v2. For licencing details see COPYING.
7 /** \file net.h exported symbols from net.c */
10 * the buffer size of the sun_path component of struct sockaddr_un
12 * While glibc doesn't define \p UNIX_PATH_MAX, it
13 * documents it has being limited to 108 bytes.
16 #define UNIX_PATH_MAX 108
19 /** \cond Userland defines for Linux DCCP support. */
21 #define IPPROTO_DCCP 33 /**< IANA assigned value */
22 #define SOCK_DCCP 6 /**< Linux socket type */
23 #define SOL_DCCP 269 /**< Linux socket level */
28 * Generic socket creation (passive and active sockets).
30 extern int makesock(unsigned l3type
, unsigned l4type
, int passive
,
31 const char *host
, unsigned short port_number
);
34 * Functions to support listening sockets.
36 /** How many pending connections queue of a listening server will hold. */
38 extern int para_listen(unsigned l3type
, unsigned l4type
, unsigned short port
);
40 /** Pretty-printing of IPv4/6 socket addresses */
41 extern char *host_and_port(struct sockaddr
*sa
, socklen_t len
);
42 extern char *local_name(int sockfd
);
43 extern char *remote_name(int sockfd
);
45 /** used to crypt the communication between para_server and para_client */
46 typedef void crypt_function(unsigned long len
,
47 const unsigned char *indata
, unsigned char *outdata
, void *private_data
);
49 int tcp_connect(char *host
, int port
);
50 int get_stream_socket(int domain
);
51 int send_buffer(int, const char *);
52 int send_bin_buffer(int, const char *, size_t);
53 __printf_2_3
int send_va_buffer(int fd
, const char *fmt
, ...);
54 int recv_buffer(int fd
, char *buf
, size_t size
);
55 int recv_bin_buffer(int fd
, char *buf
, size_t size
);
56 int para_accept(int, void *addr
, socklen_t size
);
57 int create_local_socket(const char *name
, struct sockaddr_un
*unix_addr
,
59 int init_unix_addr(struct sockaddr_un
*, const char *);
60 int recv_cred_buffer(int, char *, size_t);
61 ssize_t
send_cred_buffer(int, char*);
62 int recv_pattern(int fd
, const char *pattern
, size_t bufsize
);
63 int tcp_listen(int port
);
64 void enable_crypt(int fd
, crypt_function
*recv_f
, crypt_function
*send_f
,
66 void disable_crypt(int fd
);
69 * A wrapper around connect(2).
71 * \param fd The file descriptor.
72 * \param addr The address to connect.
73 * \param len The size of \a addr.
75 * This should not be called directly. Always use the PARA_CONNECT macro.
77 * \return \p -E_CONNECT on errors, 1 on success.
79 * \sa connect(2), PARA_CONNECT.
81 static inline int _para_connect(int fd
, void *addr
, socklen_t len
)
83 if (connect(fd
, (struct sockaddr
*)addr
, len
) == -1)
88 /** A macro for connect() which does not need a \a len parameter. */
89 #define PARA_CONNECT(fd, addr) _para_connect(fd, addr, sizeof(*(addr)))