core-legacy/helpers/bind_server.c

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2020-05-05 09:42:02 +00:00
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <netdb.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <errno.h>
#include <logger.h>
#include <helpers.h>
int
helper_bind_tcp_server(char* addr, uint16_t port, int max_client_backlog)
{
char port_str[6];
sprintf(port_str, "%d", port);
struct addrinfo hints, *res;
int fd;
int status;
memset(&hints, 0, sizeof hints);
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_PASSIVE;
if ((status = getaddrinfo(addr, port_str, &hints, &res)) != 0)
{
LOG_ERROR("getaddrinfo: %s\n", gai_strerror(status));
return -1;
}
fd = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
if ((status = bind(fd, res->ai_addr, res->ai_addrlen)) == -1)
{
LOG_ERROR("error binding socket: %s\n", strerror(errno));
freeaddrinfo(res);
return -1;
}
if ((status = listen(fd, max_client_backlog)) == -1)
{
LOG_ERROR("error setting up listener: %s\n", strerror(errno));
freeaddrinfo(res);
return -1;
}
freeaddrinfo(res);
return fd;
}