/usr/include/dacs/net.h is in libdacs-dev 1.4.28b-3ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (c) 2003-2012
* Distributed Systems Software. All rights reserved.
* See the file LICENSE for redistribution information.
*
* $Id: net.h 2594 2012-10-19 17:28:49Z brachman $
*/
#ifndef _NET_H_
#define _NET_H_
#include <sys/types.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <netinet/tcp.h>
#include <arpa/inet.h>
typedef enum Net_connection_type {
NET_TCP = 0,
NET_SSL = 1,
NET_SSL_VERIFY = 2,
NET_HTTP = 3
} Net_connection_type;
#ifndef HAVE_GETNAMEINFO
#define NI_DGRAM 0x01
#define NI_NAMEREQD 0x02
#define NI_NOFQDN 0x04
#define NI_NUMERICHOST 0x08
#define NI_NUMERICSERV 0x10
#define EAI_FAMILY 5
#define EAI_NONAME 8
#define EAI_SYSTEM 11
#ifdef __cplusplus
extern "C" {
#endif
extern int getnameinfo(const struct sockaddr *sa, socklen_t salen,
char *host, size_t hostlen, char *serv, size_t servlen,
int flags);
#ifdef __cplusplus
}
#endif
#endif
#ifdef __cplusplus
extern "C" {
#endif
extern int net_tcp_nodelay(int sd);
extern int net_socket_reuseaddr(int sd);
extern int net_set_nonblocking(int sd, char **errmsg);
extern int net_set_blocking(int sd, char **errmsg);
extern in_port_t net_get_service_port(char *portname, char *default_portname,
char **errmsg);
extern int net_write(int sd, void *buf, size_t buflen);
extern int net_write_str(int sd, char *mesg);
extern int net_connect_to_server_ssl(char *hostname, in_port_t port,
Net_connection_type ct,
char *ssl_prog, char *ssl_prog_args,
char *ssl_prog_client_crt,
char *ssl_prog_ca_crt,
int *read_fd, int *write_fd);
extern int net_connect_to_server(char *hostname, in_port_t port,
int *read_fd, int *write_fd);
extern int net_input_or_timeout(int sd, struct timeval *timeout);
extern struct sockaddr_in *net_make_sockaddr(char *hostname, in_port_t port);
extern char *net_sockaddr_name(struct sockaddr *sa, socklen_t salen);
extern char *net_socket_lname(int sd);
extern char *net_socket_rname(int sd);
extern struct sockaddr *net_socket_laddr(int sd);
extern struct sockaddr *net_socket_raddr(int sd);
extern int net_accept_or_timeout(int sd, struct sockaddr *from,
struct timeval *timeout);
extern int net_make_server_socket(char *hostname, in_port_t port,
int *sdp, struct sockaddr_in **namep);
extern int net_parse_hostname_port(char *str, char **hostname, char **port,
in_port_t *portnum);
#ifdef __cplusplus
}
#endif
#endif
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