static int OpenSocket(I2Addr addr, char* serv, int family, int options) {
int fd = -1;
int return_code = 0;
struct addrinfo *fai = NULL;
if (!(fai = I2AddrAddrInfo(addr, NULL, serv))) {
return -2;
}
// Attempt to connect to one of the chosen addresses.
struct addrinfo* ai = NULL;
for (ai = fai; ai; ai = ai->ai_next) {
if (ai->ai_family != family)
continue;
// create socket with obtained address domain, socket type and protocol
fd = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
// socket create failed. Abandon further activities using this socket
if (fd < 0)
continue;
// allow sockets to reuse local address while binding unless there
// is an active listener. If unable to set this option, indicate failure
int on = 1;
if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) != 0) {
return_code = -2;
goto failsock;
}
// end trying to set socket option to reuse local address
#ifdef AF_INET6
#ifdef IPV6_V6ONLY
if (family == AF_INET6 && (options & OPT_IPV6_ONLY)) {
on = 1;
// the IPv6 version socket option setup
if (setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on)) != 0) {
return_code = -2;
goto failsock;
}
}
#endif
#endif
// try to bind to address
if (bind(fd, ai->ai_addr, ai->ai_addrlen) == 0) { // successful
// set values in "addr" structure
if (!I2AddrSetSAddr(addr, ai->ai_addr, ai->ai_addrlen) ||
!I2AddrSetProtocol(addr, ai->ai_protocol) ||
!I2AddrSetSocktype(addr, ai->ai_socktype)) {
log_println(1, "OpenSocket: Unable to set saddr in address record");
return_code = -1;
goto failsock;
}
// set port if not already done, else return -1
if (!I2AddrPort(addr)) {
struct sockaddr_storage tmp_addr;
socklen_t tmp_addr_len = sizeof(tmp_addr);
I2Addr tmpAddr;
if (getsockname(fd, (struct sockaddr*) &tmp_addr,
&tmp_addr_len)) {
log_println(1, "OpenSocket: Unable to getsockname in address record");
return_code = -1;
goto failsock;
}
tmpAddr = I2AddrBySAddr(
get_errhandle(), (struct sockaddr*) &tmp_addr, tmp_addr_len, 0, 0);
I2AddrSetPort(addr, I2AddrPort(tmpAddr));
I2AddrFree(tmpAddr);
}
// save socket file descriptor
if (!I2AddrSetFD(addr, fd, True)) {
log_println(1, "OpenSocket: Unable to set file descriptor in address "
"record");
return_code = -1;
goto failsock;
}
// end setting values in "addr" structure
break;
}
// Address is indicated as being in use. Display actual socket options to
// user and return
if (errno == EADDRINUSE) {
/* RAC debug statemement 10/11/06 */
socklen_t onSize = sizeof(on);
getsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, &onSize);
log_println(1, "bind(%d) failed: Address already in use given as the "
"reason, getsockopt() returned %d", fd, on);
} else {
log_println(1, "bind(%d) failed: %s", fd, strerror(errno));
}
return_code = -1;
goto failsock;
}
return fd;
// If opening socket failed, print error, and try to close socket
// file-descriptor.
failsock:
while ((close(fd) < 0) && (errno == EINTR)) { }
return return_code;
}
static int
OpenSocket(I2Addr addr, char* serv, int options)
{
struct addrinfo *fai;
struct addrinfo *ai;
int on;
socklen_t onSize;
int fd=-1;
if (!(fai = I2AddrAddrInfo(addr, NULL, serv))) {
return -2;
}
for (ai = fai; ai; ai = ai->ai_next) {
#ifdef AF_INET6
if (options & OPT_IPV6_ONLY) {
if(ai->ai_family != AF_INET6)
continue;
}
#endif
if (options & OPT_IPV4_ONLY) {
if(ai->ai_family != AF_INET)
continue;
}
fd = socket(ai->ai_family,ai->ai_socktype,ai->ai_protocol);
/*
if (meta.family == 0)
meta.family = ai->ai_family;
*/
if (fd < 0) {
continue;
}
on=1;
if (setsockopt(fd,SOL_SOCKET,SO_REUSEADDR,&on,sizeof(on)) != 0) {
goto failsock;
}
#if defined(AF_INET6) && defined(IPPROTO_IPV6) && defined(IPV6_V6ONLY)
if ((ai->ai_family == AF_INET6) && (options & OPT_IPV6_ONLY) &&
setsockopt(fd,IPPROTO_IPV6,IPV6_V6ONLY,&on,sizeof(on)) != 0) {
goto failsock;
}
#endif
if (bind(fd,ai->ai_addr,ai->ai_addrlen) == 0) {
if (!I2AddrSetSAddr(addr,ai->ai_addr,ai->ai_addrlen) ||
!I2AddrSetProtocol(addr,ai->ai_protocol) ||
!I2AddrSetSocktype(addr,ai->ai_socktype)) {
log_println(1, "OpenSocket: Unable to set saddr in address record");
return -1;
}
if (!I2AddrPort(addr)) {
struct sockaddr_storage tmp_addr;
socklen_t tmp_addr_len = sizeof(tmp_addr);
I2Addr tmpAddr;
if (getsockname(fd, (struct sockaddr*) &tmp_addr, &tmp_addr_len)) {
return -1;
}
tmpAddr = I2AddrBySAddr(get_errhandle(), (struct sockaddr*) &tmp_addr, tmp_addr_len, 0, 0);
I2AddrSetPort(addr, I2AddrPort(tmpAddr));
I2AddrFree(tmpAddr);
}
if (!I2AddrSetFD(addr,fd,True)) {
log_println(1, "OpenSocket: Unable to set file descriptor in address record");
return -1;
}
break;
}
if (errno == EADDRINUSE) {
/* RAC debug statemement 10/11/06 */
onSize = sizeof(on);
getsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, &onSize);
log_println(1, "bind(%d) failed: Address already in use given as the reason, getsockopt() returned %d", fd, on);
return -2;
}
failsock:
/* RAC debug statemement 10/11/06 */
log_println(1, "failsock: Unable to set socket options for fd=%d", fd);
while((close(fd) < 0) && (errno == EINTR));
}
if (meta.family == 0)
meta.family = ai->ai_family;
return fd;
}
int CreateConnectSocket(int* sockfd, I2Addr local_addr, I2Addr server_addr,
int options, int buf_size) {
struct addrinfo *fai = NULL;
struct addrinfo *ai = NULL;
struct addrinfo *lfai = NULL;
struct addrinfo *lai = NULL;
socklen_t optlen;
int set_size;
assert(sockfd);
assert(server_addr);
if (!server_addr) {
log_println(1, "Invalid server address");
goto error;
}
// already connected and bound
if ((*sockfd = I2AddrFD(server_addr)) > -1) {
return 0;
}
if (!(fai = I2AddrAddrInfo(server_addr, NULL, NULL))) {
log_println(1, "Failed to get address info for server address");
goto error;
}
int family = AF_UNSPEC;
#ifdef AF_INET6
// options provided by user indicate V6 or V4 only
if ((options & OPT_IPV6_ONLY) != 0)
family = AF_INET6;
#endif
else if ((options & OPT_IPV4_ONLY) != 0)
family = AF_INET;
for (ai = fai; ai; ai = ai->ai_next) {
if (family != AF_UNSPEC && ai->ai_family != family) {
log_println(1, "Skipping family %d", family);
continue;
}
// create socket with obtained address domain, socket type and protocol
*sockfd = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
if (*sockfd < 0) {
// socket create failed. Abandon further activities using this socket
log_println(1, "Failed to create %d %d %d", ai->ai_family,
ai->ai_socktype, ai->ai_protocol);
continue;
}
// local address has been specified. Get details and bind to this adderess
if (local_addr) {
printf("local_addr\n");
int bindFailed = 1;
if (!(lfai = I2AddrAddrInfo(local_addr, NULL, NULL)))
continue;
// Validate INET address family
for (lai = lfai; lai; lai = lai->ai_next) {
if (lai->ai_family != family)
continue;
// bind to local address
if (bind((*sockfd), lai->ai_addr, lai->ai_addrlen) == 0) {
bindFailed = 0; // bind successful
break; /* success */
}
}
// Failed to bind. Close socket file-descriptor and move on
if (bindFailed == 1) {
close((*sockfd)); /* ignore this one */
continue;
}
} // end local address
/* Set sock opt code from Marion Nakanson <[email protected]
* OHSU Advanced Computing Center
* email on 2/19/09 correctly notes that setsockops must be made before open()
* or listen() calls are made
*/
optlen = sizeof(set_size);
// get send buffer size for logs
getsockopt(*sockfd, SOL_SOCKET, SO_SNDBUF, &set_size, &optlen);
log_print(5, "\nSend buffer initialized to %d, ", set_size);
// get receive buffer size for logs
getsockopt(*sockfd, SOL_SOCKET, SO_RCVBUF, &set_size, &optlen);
log_println(5, "Receive buffer initialized to %d", set_size);
// now assign buffer sizes passed as arguments
if (buf_size > 0) {
setsockopt(*sockfd, SOL_SOCKET, SO_SNDBUF, &buf_size,
sizeof(buf_size));
setsockopt(*sockfd, SOL_SOCKET, SO_RCVBUF, &buf_size,
sizeof(buf_size));
// log values for reference
getsockopt(*sockfd, SOL_SOCKET, SO_SNDBUF, &set_size, &optlen);
log_print(5, "Changed buffer sizes: Send buffer set to %d(%d), ",
set_size, buf_size);
getsockopt(*sockfd, SOL_SOCKET, SO_RCVBUF, &set_size, &optlen);
log_println(5, "Receive buffer set to %d(%d)", set_size, buf_size);
}
// Connect to target socket
if (connect(*sockfd, ai->ai_addr, ai->ai_addrlen) == 0) {
log_println(1, "Connected!");
// save server address values
if (I2AddrSetSAddr(server_addr, ai->ai_addr, ai->ai_addrlen) &&
I2AddrSetSocktype(server_addr, ai->ai_socktype) &&
I2AddrSetProtocol(server_addr, ai->ai_protocol) &&
I2AddrSetFD(server_addr, *sockfd, True)) {
log_println(1, "Client socket created");
return 0;
}
// unable to save
log_println(1, "I2Addr functions failed after successful connection");
while ((close(*sockfd) < 0) && (errno == EINTR)) { }
return 1;
} else {
log_println(0, "Failed to connect: %s", strerror(errno));
// goto error;
}
}
log_println(0, "No sockets could be created that match requirements.");
error:
return -1;
}
int
CreateConnectSocket(int* sockfd, I2Addr local_addr, I2Addr server_addr, int options, int buf_size)
{
struct addrinfo *fai = NULL;
struct addrinfo *ai = NULL;
struct addrinfo *lfai = NULL;
struct addrinfo *lai = NULL;
socklen_t optlen;
int set_size;
assert(sockfd);
assert(server_addr);
if (!server_addr) {
goto error;
}
if ((*sockfd = I2AddrFD(server_addr)) > -1) {
return 0;
}
if (!(fai = I2AddrAddrInfo(server_addr, NULL, NULL))) {
goto error;
}
for (ai=fai; ai; ai=ai->ai_next) {
#ifdef AF_INET6
if (options & OPT_IPV6_ONLY) {
if(ai->ai_family != AF_INET6)
continue;
}
#endif
if (options & OPT_IPV4_ONLY) {
if(ai->ai_family != AF_INET)
continue;
}
*sockfd = socket(ai->ai_family,ai->ai_socktype,ai->ai_protocol);
if (*sockfd < 0) {
continue;
}
if (local_addr) {
int bindFailed = 1;
if (!(lfai = I2AddrAddrInfo(local_addr, NULL, NULL))) {
continue;
}
for (lai=lfai; lai; lai=lai->ai_next) {
#ifdef AF_INET6
if (options & OPT_IPV6_ONLY) {
if(lai->ai_family != AF_INET6)
continue;
}
#endif
if (options & OPT_IPV4_ONLY) {
if(lai->ai_family != AF_INET)
continue;
}
if (bind((*sockfd), lai->ai_addr, lai->ai_addrlen) == 0) {
bindFailed = 0;
break; /* success */
}
}
if (bindFailed == 1) {
close((*sockfd)); /* ignore this one */
continue;
}
}
/* Set sock opt code from Marion Nakanson <[email protected]
* OHSU Advanced Computing Center
* email on 2/19/09 correctly notes that setsockops must be made before open()
* or listen() calls are made
*/
optlen = sizeof(set_size);
getsockopt(*sockfd, SOL_SOCKET, SO_SNDBUF, &set_size, &optlen);
log_print(5, "\nSend buffer initialized to %d, ", set_size);
getsockopt(*sockfd, SOL_SOCKET, SO_RCVBUF, &set_size, &optlen);
log_println(5, "Receive buffer initialized to %d", set_size);
if (buf_size > 0) {
setsockopt(*sockfd, SOL_SOCKET, SO_SNDBUF, &buf_size, sizeof(buf_size));
setsockopt(*sockfd, SOL_SOCKET, SO_RCVBUF, &buf_size, sizeof(buf_size));
getsockopt(*sockfd, SOL_SOCKET, SO_SNDBUF, &set_size, &optlen);
log_print(5, "Changed buffer sizes: Send buffer set to %d(%d), ", set_size, buf_size);
getsockopt(*sockfd, SOL_SOCKET, SO_RCVBUF, &set_size, &optlen);
log_println(5, "Receive buffer set to %d(%d)", set_size, buf_size);
}
if (connect(*sockfd,ai->ai_addr,ai->ai_addrlen) == 0) {
if(I2AddrSetSAddr(server_addr,ai->ai_addr,ai->ai_addrlen) &&
I2AddrSetSocktype(server_addr,ai->ai_socktype) &&
I2AddrSetProtocol(server_addr,ai->ai_protocol) &&
I2AddrSetFD(server_addr,*sockfd,True)){
return 0;
}
log_println(1, "I2Addr functions failed after successful connection");
while((close(*sockfd) < 0) && (errno == EINTR));
return 1;
}
}
error:
log_println(1, "Unable to create connect socket.");
return -1;
}