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Code Issues Releases Wiki Activity

Reformat code

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This commit is contained in:
PolynomialDivision 2017-07-24 18:45:02 +02:00
parent fa52176cd8
commit 325cbc764c
6 changed files with 989 additions and 1048 deletions
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87
src/network/multicastsocket.c
View file

@ -13,59 +13,58 @@
static struct ip_mreq command; /* static ?! */
int setup_multicast_socket(const char *_multicast_ip, unsigned short _multicast_port, struct sockaddr_in *addr)
{
int loop = 1;
int sock;
int setup_multicast_socket(const char *_multicast_ip, unsigned short _multicast_port, struct sockaddr_in *addr) {
int loop = 1;
int sock;
memset (addr, 0, sizeof (*addr));
addr->sin_family = AF_INET;
addr->sin_addr.s_addr = htonl (INADDR_ANY);
addr->sin_port = htons (_multicast_port);
memset(addr, 0, sizeof(*addr));
addr->sin_family = AF_INET;
addr->sin_addr.s_addr = htonl (INADDR_ANY);
addr->sin_port = htons (_multicast_port);
if ( ( sock = socket(PF_INET, SOCK_DGRAM, 0)) == -1) {
perror ("socket()");
exit (EXIT_FAILURE);
}
if ((sock = socket(PF_INET, SOCK_DGRAM, 0)) == -1) {
perror("socket()");
exit(EXIT_FAILURE);
}
/* Mehr Prozessen erlauben, denselben Port zu nutzen */
loop = 1;
if (setsockopt ( sock,
/* Mehr Prozessen erlauben, denselben Port zu nutzen */
loop = 1;
if (setsockopt(sock,
SOL_SOCKET,
SO_REUSEADDR,
&loop, sizeof (loop)) < 0) {
perror ("setsockopt:SO_REUSEADDR");
exit (EXIT_FAILURE);
}
if(bind( sock,
(struct sockaddr *)addr,
sizeof(*addr)) < 0) {
perror ("bind");
exit (EXIT_FAILURE);
}
&loop, sizeof(loop)) < 0) {
perror("setsockopt:SO_REUSEADDR");
exit(EXIT_FAILURE);
}
if (bind(sock,
(struct sockaddr *) addr,
sizeof(*addr)) < 0) {
perror("bind");
exit(EXIT_FAILURE);
}
/* Broadcast auf dieser Maschine zulassen */
loop = 1;
if (setsockopt ( sock,
/* Broadcast auf dieser Maschine zulassen */
loop = 1;
if (setsockopt(sock,
IPPROTO_IP,
IP_MULTICAST_LOOP,
&loop, sizeof (loop)) < 0) {
perror ("setsockopt:IP_MULTICAST_LOOP");
exit (EXIT_FAILURE);
}
&loop, sizeof(loop)) < 0) {
perror("setsockopt:IP_MULTICAST_LOOP");
exit(EXIT_FAILURE);
}
/* Join the broadcast group: */
command.imr_multiaddr.s_addr = inet_addr (_multicast_ip);
command.imr_interface.s_addr = htonl (INADDR_ANY);
if (command.imr_multiaddr.s_addr == -1) {
perror ("224.0.0.1 ist keine Multicast-Adresse\n");
exit (EXIT_FAILURE);
}
if (setsockopt ( sock,
/* Join the broadcast group: */
command.imr_multiaddr.s_addr = inet_addr(_multicast_ip);
command.imr_interface.s_addr = htonl (INADDR_ANY);
if (command.imr_multiaddr.s_addr == -1) {
perror("224.0.0.1 ist keine Multicast-Adresse\n");
exit(EXIT_FAILURE);
}
if (setsockopt(sock,
IPPROTO_IP,
IP_ADD_MEMBERSHIP,
&command, sizeof (command)) < 0) {
perror ("setsockopt:IP_ADD_MEMBERSHIP");
}
return sock;
&command, sizeof(command)) < 0) {
perror("setsockopt:IP_ADD_MEMBERSHIP");
}
return sock;
}