reactos/rosapps/applications/net/ncftp/sio/SBind.c

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#include "syshdrs.h"
int
SBind(int sockfd, const int port, const int nTries, const int reuseFlag)
{
unsigned int i;
int on;
int onsize;
struct sockaddr_in localAddr;
localAddr.sin_family = AF_INET;
localAddr.sin_addr.s_addr = htonl(INADDR_ANY);
localAddr.sin_port = htons((unsigned short) port);
if (reuseFlag != kReUseAddrNo) {
/* This is mostly so you can quit the server and re-run it
* again right away. If you don't do this, the OS may complain
* that the address is still in use.
*/
on = 1;
onsize = (int) sizeof(on);
(void) setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR,
(char *) &on, onsize);
#ifdef SO_REUSEPORT
/* Tells kernel that it's okay to have more
* than one process originating from this
* local port.
*/
on = 1;
onsize = (int) sizeof(on);
(void) setsockopt(sockfd, SOL_SOCKET, SO_REUSEPORT,
(char *) &on, onsize);
#endif /* SO_REUSEPORT */
}
for (i=1; ; i++) {
/* Try binding a few times, in case we get Address in Use
* errors.
*/
if (bind(sockfd, (struct sockaddr *) &localAddr, sizeof(struct sockaddr_in)) == 0) {
break;
}
if ((int) i == nTries) {
return (-1);
}
/* Give the OS time to clean up the old socket,
* and then try again.
*/
sleep(i * 3);
}
return (0);
} /* SBind */
int
SListen(int sfd, int backlog)
{
return (listen(sfd, (unsigned int) backlog));
} /* SListen */