Makefile- atomic.h
- date.c
- date.h
- hashing.c
- hashing.h
- io.c
- io.h
- libxattr.c
- libxattr.h
- netbuf.c
- object.c
- object.h
- objs.mk
- pblock.c
- pblock.h
- platform.h
- plist.c
- plist.h
- plist_pvt.h
- plistdef.h
- pool.c
- pool.h
- pool_pvt.h
- shexp.c
- shexp.h
- socket.c
- socket.h
- strbuf.c
- strbuf.h
- strreplace.c
- strreplace.h
- system.c
- systems.h
- systhr.c
- systhr.h
- thrpool.c
- thrpool.h
- uri.c
- util.c
- util.h
- writer.c
- writer.h
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 2026 Olaf Wintermann. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "socket.h"
#include <unistd.h>
#include <sys/fcntl.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
int util_server_socket_local(short *port) {
int socket_fd = socket(AF_INET, SOCK_STREAM, 0);
if(socket_fd < 0) {
return -1;
}
short socket_port = 0;
if(port) {
socket_port = *port;
}
struct sockaddr_in addr;
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
addr.sin_port = htons(socket_port);
if(bind(socket_fd, (struct sockaddr*)&addr, sizeof(addr))) {
close(socket_fd);
return -1;
}
socklen_t len = sizeof(addr);
if(getsockname(socket_fd, (struct sockaddr *)&addr, &len) < 0) {
close(socket_fd);
return -1;
}
if(port) {
*port = ntohs(addr.sin_port);
}
return socket_fd;
}
int util_socket_connect_local(short port) {
int fd = socket(AF_INET, SOCK_STREAM, 0);
if(fd < 0) {
return -1;
}
struct sockaddr_in addr;
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
addr.sin_port = htons(port);
if(connect(fd, (struct sockaddr*)&addr, sizeof(addr))) {
close(fd);
return -1;
}
return fd;
}
int util_socketpair(int fds[2]) {
if (socketpair(AF_UNIX, SOCK_STREAM, 0, fds)) {
fds[0] = -1;
fds[1] = -1;
return -1;
}
return 0;
}
int util_socket_setnonblock(int fd, int nonblock) {
int flags;
if ((flags = fcntl(fd, F_GETFL, 0)) == -1) {
flags = 0;
}
if(nonblock) {
flags |= O_NONBLOCK;
} else {
flags &= ~O_NONBLOCK;
}
if (fcntl(fd, F_SETFL, flags) != 0) {
return 1;
}
return 0;
}