2 // Written by Forest Hale 2003-06-15 and placed into public domain.
12 #include <sys/socket.h>
13 #include <sys/ioctl.h>
16 #include <netinet/in.h>
17 #include <arpa/inet.h>
20 // for Z_Malloc/Z_Free in quake
21 #ifndef STANDALONETEST
27 #define Con_Print printf
28 #define Con_Printf printf
29 #define Z_Malloc malloc
35 // to make LHNETADDRESS_FromString resolve repeated hostnames faster, cache them
36 #define MAX_NAMECACHE 64
37 static struct namecache_s
39 lhnetaddress_t address;
40 double expirationtime;
43 namecache[MAX_NAMECACHE];
44 static int namecacheposition = 0;
46 int LHNETADDRESS_FromPort(lhnetaddress_t *address, int addresstype, int port)
52 case LHNETADDRESSTYPE_LOOP:
53 // local:port (loopback)
54 memset(address, 0, sizeof(*address));
55 address->addresstype = LHNETADDRESSTYPE_LOOP;
56 address->addressdata.loop.port = port;
58 case LHNETADDRESSTYPE_INET4:
59 // 0.0.0.0:port (INADDR_ANY, binds to all interfaces)
60 memset(address, 0, sizeof(*address));
61 address->addresstype = LHNETADDRESSTYPE_INET4;
62 address->addressdata.inet4.family = LHNETADDRESSTYPE_INET4_FAMILY;
63 address->addressdata.inet4.port = htons((unsigned short)port);
65 case LHNETADDRESSTYPE_INET6:
66 // [0:0:0:0:0:0:0:0]:port (IN6ADDR_ANY, binds to all interfaces)
67 memset(address, 0, sizeof(*address));
68 address->addresstype = LHNETADDRESSTYPE_INET6;
69 address->addressdata.inet6.family = LHNETADDRESSTYPE_INET6_FAMILY;
70 address->addressdata.inet6.port = htons((unsigned short)port);
76 int LHNETADDRESS_FromString(lhnetaddress_t *address, const char *string, int defaultport)
78 int i, port, namelen, d1, d2, d3, d4;
79 struct hostent *hostentry;
82 if (!address || !string)
84 memset(address, 0, sizeof(*address));
85 address->addresstype = LHNETADDRESSTYPE_NONE;
87 colon = strrchr(string, ':');
89 port = atoi(colon + 1);
91 colon = string + strlen(string);
94 namelen = colon - string;
97 if (string[0] == '[' && namelen > 0 && string[namelen-1] == ']') // ipv6
102 memcpy(name, string, namelen);
105 if (!strcmp(name, "local"))
107 address->addresstype = LHNETADDRESSTYPE_LOOP;
108 address->addressdata.loop.port = port;
111 // try to parse as dotted decimal ipv4 address first
112 if (sscanf(name, "%d.%d.%d.%d", &d1, &d2, &d3, &d4) == 4 && (unsigned int)d1 < 256 && (unsigned int)d2 < 256 && (unsigned int)d3 < 256 && (unsigned int)d4 < 256)
114 // parsed a valid ipv4 address
115 address->addresstype = LHNETADDRESSTYPE_INET4;
116 address->addressdata.inet4.family = LHNETADDRESSTYPE_INET4_FAMILY;
117 address->addressdata.inet4.port = htons((unsigned short)port);
118 address->addressdata.inet4.address[0] = (unsigned char)d1;
119 address->addressdata.inet4.address[1] = (unsigned char)d2;
120 address->addressdata.inet4.address[2] = (unsigned char)d3;
121 address->addressdata.inet4.address[3] = (unsigned char)d4;
122 #ifdef STANDALONETEST
123 printf("manual parsing of ipv4 dotted decimal address \"%s\" successful: %d.%d.%d.%d:%d\n", string, (int)address->addressdata.inet4.address[0], (int)address->addressdata.inet4.address[1], (int)address->addressdata.inet4.address[2], (int)address->addressdata.inet4.address[3], (int)ntohs(address->addressdata.inet4.port));
127 for (i = 0;i < MAX_NAMECACHE;i++)
128 if (!strcmp(namecache[i].name, name))
130 if (i < MAX_NAMECACHE && Sys_DoubleTime() < namecache[i].expirationtime)
132 *address = namecache[i].address;
133 if (address->addresstype == LHNETADDRESSTYPE_INET6)
135 address->addressdata.inet6.port = htons((unsigned short)port);
138 else if (address->addresstype == LHNETADDRESSTYPE_INET4)
140 address->addressdata.inet4.port = htons((unsigned short)port);
145 // try gethostbyname (handles dns and other ip formats)
146 hostentry = gethostbyname(name);
149 if (hostentry->h_addrtype == LHNETADDRESSTYPE_INET6_FAMILY)
152 address->addresstype = LHNETADDRESSTYPE_INET6;
153 address->addressdata.inet6.family = hostentry->h_addrtype;
154 address->addressdata.inet6.port = htons((unsigned short)port);
155 memcpy(address->addressdata.inet6.address, hostentry->h_addr_list[0], sizeof(address->addressdata.inet6.address));
156 for (i = 0;i < (int)sizeof(namecache[namecacheposition].name)-1 && name[i];i++)
157 namecache[namecacheposition].name[i] = name[i];
158 namecache[namecacheposition].name[i] = 0;
159 namecache[namecacheposition].expirationtime = Sys_DoubleTime() + 12 * 3600; // 12 hours
160 namecache[namecacheposition].address = *address;
161 namecacheposition = (namecacheposition + 1) % MAX_NAMECACHE;
162 #ifdef STANDALONETEST
163 printf("gethostbyname(\"%s\") returned ipv6 address [%x:%x:%x:%x:%x:%x:%x:%x]:%d\n", name, (int)address->addressdata.inet6.address[0], (int)address->addressdata.inet6.address[1], (int)address->addressdata.inet6.address[2], (int)address->addressdata.inet6.address[3], (int)address->addressdata.inet6.address[4], (int)address->addressdata.inet6.address[5], (int)address->addressdata.inet6.address[6], (int)address->addressdata.inet6.address[7], (int)ntohs(address->addressdata.inet6.port));
167 else if (hostentry->h_addrtype == LHNETADDRESSTYPE_INET4_FAMILY)
170 address->addresstype = LHNETADDRESSTYPE_INET4;
171 address->addressdata.inet4.family = hostentry->h_addrtype;
172 address->addressdata.inet4.port = htons((unsigned short)port);
173 memcpy(address->addressdata.inet4.address, hostentry->h_addr_list[0], sizeof(address->addressdata.inet4.address));
174 for (i = 0;i < (int)sizeof(namecache[namecacheposition].name)-1 && name[i];i++)
175 namecache[namecacheposition].name[i] = name[i];
176 namecache[namecacheposition].name[i] = 0;
177 namecache[namecacheposition].expirationtime = Sys_DoubleTime() + 12 * 3600; // 12 hours
178 namecache[namecacheposition].address = *address;
179 namecacheposition = (namecacheposition + 1) % MAX_NAMECACHE;
180 #ifdef STANDALONETEST
181 printf("gethostbyname(\"%s\") returned ipv4 address %d.%d.%d.%d:%d\n", name, (int)address->addressdata.inet4.address[0], (int)address->addressdata.inet4.address[1], (int)address->addressdata.inet4.address[2], (int)address->addressdata.inet4.address[3], (int)ntohs(address->addressdata.inet4.port));
186 #ifdef STANDALONETEST
187 printf("gethostbyname failed on address \"%s\"\n", name);
189 for (i = 0;i < (int)sizeof(namecache[namecacheposition].name)-1 && name[i];i++)
190 namecache[namecacheposition].name[i] = name[i];
191 namecache[namecacheposition].name[i] = 0;
192 namecache[namecacheposition].expirationtime = Sys_DoubleTime() + 12 * 3600; // 12 hours
193 namecache[namecacheposition].address.addresstype = LHNETADDRESSTYPE_NONE;
194 namecacheposition = (namecacheposition + 1) % MAX_NAMECACHE;
198 int LHNETADDRESS_ToString(const lhnetaddress_t *address, char *string, int stringbuffersize, int includeport)
201 if (!address || !string || stringbuffersize < 1)
203 switch(address->addresstype)
207 case LHNETADDRESSTYPE_LOOP:
210 if (stringbuffersize >= 12)
212 sprintf(string, "local:%d", (int)address->addressdata.loop.port);
218 if (stringbuffersize >= 6)
220 strcpy(string, "local");
225 case LHNETADDRESSTYPE_INET4:
228 if (stringbuffersize >= 22)
230 sprintf(string, "%d.%d.%d.%d:%d", (int)address->addressdata.inet4.address[0], (int)address->addressdata.inet4.address[1], (int)address->addressdata.inet4.address[2], (int)address->addressdata.inet4.address[3], (int)ntohs(address->addressdata.inet4.port));
236 if (stringbuffersize >= 16)
238 sprintf(string, "%d.%d.%d.%d", (int)address->addressdata.inet4.address[0], (int)address->addressdata.inet4.address[1], (int)address->addressdata.inet4.address[2], (int)address->addressdata.inet4.address[3]);
243 case LHNETADDRESSTYPE_INET6:
246 if (stringbuffersize >= 88)
248 sprintf(string, "[%x:%x:%x:%x:%x:%x:%x:%x]:%d", (int)address->addressdata.inet6.address[0], (int)address->addressdata.inet6.address[1], (int)address->addressdata.inet6.address[2], (int)address->addressdata.inet6.address[3], (int)address->addressdata.inet6.address[4], (int)address->addressdata.inet6.address[5], (int)address->addressdata.inet6.address[6], (int)address->addressdata.inet6.address[7], (int)ntohs(address->addressdata.inet6.port));
254 if (stringbuffersize >= 80)
256 sprintf(string, "%x:%x:%x:%x:%x:%x:%x:%x", (int)address->addressdata.inet6.address[0], (int)address->addressdata.inet6.address[1], (int)address->addressdata.inet6.address[2], (int)address->addressdata.inet6.address[3], (int)address->addressdata.inet6.address[4], (int)address->addressdata.inet6.address[5], (int)address->addressdata.inet6.address[6], (int)address->addressdata.inet6.address[7]);
265 int LHNETADDRESS_GetAddressType(const lhnetaddress_t *address)
268 return address->addresstype;
270 return LHNETADDRESSTYPE_NONE;
273 int LHNETADDRESS_GetPort(const lhnetaddress_t *address)
277 switch(address->addresstype)
279 case LHNETADDRESSTYPE_LOOP:
280 return address->addressdata.loop.port;
281 case LHNETADDRESSTYPE_INET4:
282 return ntohs(address->addressdata.inet4.port);
283 case LHNETADDRESSTYPE_INET6:
284 return ntohs(address->addressdata.inet6.port);
290 int LHNETADDRESS_SetPort(lhnetaddress_t *address, int port)
294 switch(address->addresstype)
296 case LHNETADDRESSTYPE_LOOP:
297 address->addressdata.loop.port = port;
299 case LHNETADDRESSTYPE_INET4:
300 address->addressdata.inet4.port = htons((unsigned short)port);
302 case LHNETADDRESSTYPE_INET6:
303 address->addressdata.inet6.port = htons((unsigned short)port);
310 int LHNETADDRESS_Compare(const lhnetaddress_t *address1, const lhnetaddress_t *address2)
312 if (!address1 || !address2)
314 if (address1->addresstype != address2->addresstype)
316 switch(address1->addresstype)
318 case LHNETADDRESSTYPE_LOOP:
319 if (address1->addressdata.loop.port != address2->addressdata.loop.port)
322 case LHNETADDRESSTYPE_INET4:
323 if (address1->addressdata.inet4.family != address2->addressdata.inet4.family)
325 if (memcmp(address1->addressdata.inet4.address, address2->addressdata.inet4.address, sizeof(address1->addressdata.inet4.address)))
327 if (address1->addressdata.inet4.port != address2->addressdata.inet4.port)
330 case LHNETADDRESSTYPE_INET6:
331 if (address1->addressdata.inet6.family != address2->addressdata.inet6.family)
333 if (memcmp(address1->addressdata.inet6.address, address2->addressdata.inet6.address, sizeof(address1->addressdata.inet6.address)))
335 if (address1->addressdata.inet6.port != address2->addressdata.inet6.port)
343 typedef struct lhnetpacket_s
350 #ifndef STANDALONETEST
351 double sentdoubletime;
353 struct lhnetpacket_s *next, *prev;
357 static int lhnet_active;
358 static lhnetsocket_t lhnet_socketlist;
359 static lhnetpacket_t lhnet_packetlist;
361 static int lhnet_didWSAStartup = 0;
362 static WSADATA lhnet_winsockdata;
365 void LHNET_Init(void)
369 lhnet_socketlist.next = lhnet_socketlist.prev = &lhnet_socketlist;
370 lhnet_packetlist.next = lhnet_packetlist.prev = &lhnet_packetlist;
374 void LHNET_Shutdown(void)
379 while (lhnet_socketlist.next != &lhnet_socketlist)
380 LHNET_CloseSocket(lhnet_socketlist.next);
381 while (lhnet_packetlist.next != &lhnet_packetlist)
383 p = lhnet_packetlist.next;
384 p->prev->next = p->next;
385 p->next->prev = p->prev;
391 static const char *LHNETPRIVATE_StrError(void)
394 int i = WSAGetLastError();
397 case WSAEINTR: return "WSAEINTR";
398 case WSAEBADF: return "WSAEBADF";
399 case WSAEACCES: return "WSAEACCES";
400 case WSAEFAULT: return "WSAEFAULT";
401 case WSAEINVAL: return "WSAEINVAL";
402 case WSAEMFILE: return "WSAEMFILE";
403 case WSAEWOULDBLOCK: return "WSAEWOULDBLOCK";
404 case WSAEINPROGRESS: return "WSAEINPROGRESS";
405 case WSAEALREADY: return "WSAEALREADY";
406 case WSAENOTSOCK: return "WSAENOTSOCK";
407 case WSAEDESTADDRREQ: return "WSAEDESTADDRREQ";
408 case WSAEMSGSIZE: return "WSAEMSGSIZE";
409 case WSAEPROTOTYPE: return "WSAEPROTOTYPE";
410 case WSAENOPROTOOPT: return "WSAENOPROTOOPT";
411 case WSAEPROTONOSUPPORT: return "WSAEPROTONOSUPPORT";
412 case WSAESOCKTNOSUPPORT: return "WSAESOCKTNOSUPPORT";
413 case WSAEOPNOTSUPP: return "WSAEOPNOTSUPP";
414 case WSAEPFNOSUPPORT: return "WSAEPFNOSUPPORT";
415 case WSAEAFNOSUPPORT: return "WSAEAFNOSUPPORT";
416 case WSAEADDRINUSE: return "WSAEADDRINUSE";
417 case WSAEADDRNOTAVAIL: return "WSAEADDRNOTAVAIL";
418 case WSAENETDOWN: return "WSAENETDOWN";
419 case WSAENETUNREACH: return "WSAENETUNREACH";
420 case WSAENETRESET: return "WSAENETRESET";
421 case WSAECONNABORTED: return "WSAECONNABORTED";
422 case WSAECONNRESET: return "WSAECONNRESET";
423 case WSAENOBUFS: return "WSAENOBUFS";
424 case WSAEISCONN: return "WSAEISCONN";
425 case WSAENOTCONN: return "WSAENOTCONN";
426 case WSAESHUTDOWN: return "WSAESHUTDOWN";
427 case WSAETOOMANYREFS: return "WSAETOOMANYREFS";
428 case WSAETIMEDOUT: return "WSAETIMEDOUT";
429 case WSAECONNREFUSED: return "WSAECONNREFUSED";
430 case WSAELOOP: return "WSAELOOP";
431 case WSAENAMETOOLONG: return "WSAENAMETOOLONG";
432 case WSAEHOSTDOWN: return "WSAEHOSTDOWN";
433 case WSAEHOSTUNREACH: return "WSAEHOSTUNREACH";
434 case WSAENOTEMPTY: return "WSAENOTEMPTY";
435 case WSAEPROCLIM: return "WSAEPROCLIM";
436 case WSAEUSERS: return "WSAEUSERS";
437 case WSAEDQUOT: return "WSAEDQUOT";
438 case WSAESTALE: return "WSAESTALE";
439 case WSAEREMOTE: return "WSAEREMOTE";
440 case WSAEDISCON: return "WSAEDISCON";
441 case 0: return "no error";
442 default: return "unknown WSAE error";
445 return strerror(errno);
449 lhnetsocket_t *LHNET_OpenSocket_Connectionless(lhnetaddress_t *address)
451 lhnetsocket_t *lhnetsocket, *s;
454 lhnetsocket = (lhnetsocket_t *)Z_Malloc(sizeof(*lhnetsocket));
457 memset(lhnetsocket, 0, sizeof(*lhnetsocket));
458 lhnetsocket->address = *address;
459 switch(lhnetsocket->address.addresstype)
461 case LHNETADDRESSTYPE_LOOP:
462 if (lhnetsocket->address.addressdata.loop.port == 0)
464 // allocate a port dynamically
465 // this search will always terminate because there is never
466 // an allocated socket with port 0, so if the number wraps it
467 // will find the port is unused, and then refuse to use port
468 // 0, causing an intentional failure condition
469 lhnetsocket->address.addressdata.loop.port = 1024;
472 for (s = lhnet_socketlist.next;s != &lhnet_socketlist;s = s->next)
473 if (s->address.addresstype == lhnetsocket->address.addresstype && s->address.addressdata.loop.port == lhnetsocket->address.addressdata.loop.port)
475 if (s == &lhnet_socketlist)
477 lhnetsocket->address.addressdata.loop.port++;
480 // check if the port is available
481 for (s = lhnet_socketlist.next;s != &lhnet_socketlist;s = s->next)
482 if (s->address.addresstype == lhnetsocket->address.addresstype && s->address.addressdata.loop.port == lhnetsocket->address.addressdata.loop.port)
484 if (s == &lhnet_socketlist && lhnetsocket->address.addressdata.loop.port != 0)
486 lhnetsocket->next = &lhnet_socketlist;
487 lhnetsocket->prev = lhnetsocket->next->prev;
488 lhnetsocket->next->prev = lhnetsocket;
489 lhnetsocket->prev->next = lhnetsocket;
493 case LHNETADDRESSTYPE_INET4:
494 case LHNETADDRESSTYPE_INET6:
496 if (lhnet_didWSAStartup || (lhnet_didWSAStartup = !WSAStartup(MAKEWORD(1, 1), &lhnet_winsockdata)))
499 if ((lhnetsocket->inetsocket = socket(address->addresstype == LHNETADDRESSTYPE_INET6 ? LHNETADDRESSTYPE_INET6_FAMILY : LHNETADDRESSTYPE_INET4_FAMILY, SOCK_DGRAM, IPPROTO_UDP)) != -1)
503 if (ioctlsocket(lhnetsocket->inetsocket, FIONBIO, &_true) != -1)
506 if (ioctl(lhnetsocket->inetsocket, FIONBIO, &_true) != -1)
514 namelen = address->addresstype == LHNETADDRESSTYPE_INET6 ? sizeof(lhnetsocket->address.addressdata.inet6) : sizeof(lhnetsocket->address.addressdata.inet4);
515 if (bind(lhnetsocket->inetsocket, (struct sockaddr *)&lhnetsocket->address.addressdata, namelen) != -1)
518 getsockname(lhnetsocket->inetsocket, (struct sockaddr *)&lhnetsocket->address.addressdata, &namelen);
519 // enable broadcast on this socket
520 setsockopt(lhnetsocket->inetsocket, SOL_SOCKET, SO_BROADCAST, (char *)&i, sizeof(i));
521 lhnetsocket->next = &lhnet_socketlist;
522 lhnetsocket->prev = lhnetsocket->next->prev;
523 lhnetsocket->next->prev = lhnetsocket;
524 lhnetsocket->prev->next = lhnetsocket;
528 Con_Printf("LHNET_OpenSocket_Connectionless: bind returned error: %s\n", LHNETPRIVATE_StrError());
531 Con_Printf("LHNET_OpenSocket_Connectionless: ioctlsocket returned error: %s\n", LHNETPRIVATE_StrError());
533 closesocket(lhnetsocket->inetsocket);
535 close(lhnetsocket->inetsocket);
539 Con_Printf("LHNET_OpenSocket_Connectionless: socket returned error: %s\n", LHNETPRIVATE_StrError());
543 Con_Print("LHNET_OpenSocket_Connectionless: WSAStartup failed\n");
554 void LHNET_CloseSocket(lhnetsocket_t *lhnetsocket)
558 // unlink from socket list
559 if (lhnetsocket->next == NULL)
561 lhnetsocket->next->prev = lhnetsocket->prev;
562 lhnetsocket->prev->next = lhnetsocket->next;
563 lhnetsocket->next = NULL;
564 lhnetsocket->prev = NULL;
566 // no special close code for loopback, just inet
567 if (lhnetsocket->address.addresstype == LHNETADDRESSTYPE_INET4 || lhnetsocket->address.addresstype == LHNETADDRESSTYPE_INET6)
570 closesocket(lhnetsocket->inetsocket);
572 close(lhnetsocket->inetsocket);
576 if (lhnet_socketlist.next == &lhnet_socketlist && lhnet_didWSAStartup)
578 lhnet_didWSAStartup = 0;
586 lhnetaddress_t *LHNET_AddressFromSocket(lhnetsocket_t *sock)
589 return &sock->address;
594 int LHNET_Read(lhnetsocket_t *lhnetsocket, void *content, int maxcontentlength, lhnetaddress_t *address)
597 if (!lhnetsocket || !address || !content || maxcontentlength < 1)
599 if (lhnetsocket->address.addresstype == LHNETADDRESSTYPE_LOOP)
602 lhnetpacket_t *p, *pnext;
603 // scan for any old packets to timeout while searching for a packet
604 // that is waiting to be delivered to this socket
605 currenttime = time(NULL);
606 for (p = lhnet_packetlist.next;p != &lhnet_packetlist;p = pnext)
609 if (p->timeout < currenttime)
612 p->next->prev = p->prev;
613 p->prev->next = p->next;
617 #ifndef STANDALONETEST
618 if (cl_netlocalping.value && (Sys_DoubleTime() - cl_netlocalping.value * (1.0 / 2000.0)) < p->sentdoubletime)
621 if (value == 0 && p->destinationport == lhnetsocket->address.addressdata.loop.port)
623 if (p->length <= maxcontentlength)
625 *address = lhnetsocket->address;
626 address->addressdata.loop.port = p->sourceport;
627 memcpy(content, p->data, p->length);
633 p->next->prev = p->prev;
634 p->prev->next = p->next;
639 else if (lhnetsocket->address.addresstype == LHNETADDRESSTYPE_INET4)
641 unsigned int inetaddresslength;
642 address->addresstype = LHNETADDRESSTYPE_NONE;
643 inetaddresslength = sizeof(address->addressdata.inet4);
644 value = recvfrom(lhnetsocket->inetsocket, content, maxcontentlength, 0, (struct sockaddr *)&address->addressdata.inet4, &inetaddresslength);
647 address->addresstype = LHNETADDRESSTYPE_INET4;
650 else if (value == -1)
653 int e = WSAGetLastError();
654 if (e == WSAEWOULDBLOCK)
658 case WSAECONNREFUSED:
659 Con_Print("Connection refused\n");
663 if (errno == EWOULDBLOCK)
668 Con_Print("Connection refused\n");
674 else if (lhnetsocket->address.addresstype == LHNETADDRESSTYPE_INET6)
676 unsigned int inetaddresslength;
677 address->addresstype = LHNETADDRESSTYPE_NONE;
678 inetaddresslength = sizeof(address->addressdata.inet6);
679 value = recvfrom(lhnetsocket->inetsocket, content, maxcontentlength, 0, (struct sockaddr *)&address->addressdata.inet6, &inetaddresslength);
682 address->addresstype = LHNETADDRESSTYPE_INET6;
685 else if (value == -1)
688 int e = WSAGetLastError();
689 if (e == WSAEWOULDBLOCK)
693 case WSAECONNREFUSED:
694 Con_Print("Connection refused\n");
698 if (errno == EWOULDBLOCK)
703 Con_Print("Connection refused\n");
712 int LHNET_Write(lhnetsocket_t *lhnetsocket, const void *content, int contentlength, const lhnetaddress_t *address)
715 if (!lhnetsocket || !address || !content || contentlength < 1)
717 if (lhnetsocket->address.addresstype != address->addresstype)
719 if (lhnetsocket->address.addresstype == LHNETADDRESSTYPE_LOOP)
722 p = (lhnetpacket_t *)Z_Malloc(sizeof(*p) + contentlength);
723 p->data = (void *)(p + 1);
724 memcpy(p->data, content, contentlength);
725 p->length = contentlength;
726 p->sourceport = lhnetsocket->address.addressdata.loop.port;
727 p->destinationport = address->addressdata.loop.port;
728 p->timeout = time(NULL) + 10;
729 p->next = &lhnet_packetlist;
730 p->prev = p->next->prev;
733 #ifndef STANDALONETEST
734 p->sentdoubletime = Sys_DoubleTime();
736 value = contentlength;
738 else if (lhnetsocket->address.addresstype == LHNETADDRESSTYPE_INET4)
740 value = sendto(lhnetsocket->inetsocket, content, contentlength, 0, (struct sockaddr *)&address->addressdata.inet4, sizeof(address->addressdata.inet4));
744 int e = WSAGetLastError();
745 if (e == WSAEWOULDBLOCK)
748 if (errno == EWOULDBLOCK)
753 else if (lhnetsocket->address.addresstype == LHNETADDRESSTYPE_INET6)
755 value = sendto(lhnetsocket->inetsocket, content, contentlength, 0, (struct sockaddr *)&address->addressdata.inet6, sizeof(address->addressdata.inet6));
759 int e = WSAGetLastError();
760 if (e == WSAEWOULDBLOCK)
763 if (errno == EWOULDBLOCK)
771 #ifdef STANDALONETEST
772 int main(int argc, char **argv)
774 lhnetsocket_t *sock[16], *sendsock;
783 int sendmessagelength;
784 lhnetaddress_t destaddress;
785 lhnetaddress_t receiveaddress;
786 lhnetaddress_t sockaddress[16];
787 char buffer[1536], addressstring[128], addressstring2[128];
788 if ((argc == 2 || argc == 5) && (port = atoi(argv[1])) >= 1 && port < 65535)
790 printf("calling LHNET_Init()\n");
794 LHNETADDRESS_FromPort(&sockaddress[numsockets++], LHNETADDRESSTYPE_LOOP, port);
795 LHNETADDRESS_FromPort(&sockaddress[numsockets++], LHNETADDRESSTYPE_INET4, port);
796 LHNETADDRESS_FromPort(&sockaddress[numsockets++], LHNETADDRESSTYPE_INET6, port+1);
800 sendmessagelength = 0;
802 for (i = 0;i < numsockets;i++)
804 LHNETADDRESS_ToString(&sockaddress[i], addressstring, sizeof(addressstring), 1);
805 printf("calling LHNET_OpenSocket_Connectionless(<%s>)\n", addressstring);
806 if ((sock[i] = LHNET_OpenSocket_Connectionless(&sockaddress[i])))
808 LHNETADDRESS_ToString(LHNET_AddressFromSocket(sock[i]), addressstring2, sizeof(addressstring2), 1);
809 printf("opened socket successfully (address \"%s\")\n", addressstring2);
813 printf("failed to open socket\n");
824 count = atoi(argv[2]);
825 if (LHNETADDRESS_FromString(&destaddress, argv[3], -1))
827 sendmessage = argv[4];
828 sendmessagelength = strlen(sendmessage);
830 for (i = 0;i < numsockets;i++)
831 if (sock[i] && LHNETADDRESS_GetAddressType(&destaddress) == LHNETADDRESS_GetAddressType(&sockaddress[i]))
833 if (sendsock == NULL)
835 printf("Could not find an open socket matching the addresstype (%i) of destination address, switching to listen only mode\n", LHNETADDRESS_GetAddressType(&destaddress));
841 printf("LHNETADDRESS_FromString did not like the address \"%s\", switching to listen only mode\n", argv[3]);
845 printf("started, now listening for \"exit\" on the opened sockets\n");
846 oldtime = time(NULL);
854 for (i = 0;i < numsockets;i++)
858 length = LHNET_Read(sock[i], buffer, sizeof(buffer), &receiveaddress);
860 printf("localsock read error: length < 0");
861 else if (length > 0 && length < (int)sizeof(buffer))
864 LHNETADDRESS_ToString(&receiveaddress, addressstring, sizeof(addressstring), 1);
865 LHNETADDRESS_ToString(LHNET_AddressFromSocket(sock[i]), addressstring2, sizeof(addressstring2), 1);
866 printf("received message \"%s\" from \"%s\" on socket \"%s\"\n", buffer, addressstring, addressstring2);
867 if (!strcmp(buffer, "exit"))
874 if (argc == 5 && count > 0)
876 newtime = time(NULL);
877 if (newtime != oldtime)
879 LHNETADDRESS_ToString(&destaddress, addressstring, sizeof(addressstring), 1);
880 LHNETADDRESS_ToString(LHNET_AddressFromSocket(sendsock), addressstring2, sizeof(addressstring2), 1);
881 printf("calling LHNET_Write(<%s>, \"%s\", %i, <%s>)\n", addressstring2, sendmessage, sendmessagelength, addressstring);
882 length = LHNET_Write(sendsock, sendmessage, sendmessagelength, &destaddress);
883 if (length == sendmessagelength)
884 printf("sent successfully\n");
886 printf("LH_Write failed, returned %i (length of message was %i)\n", length, strlen(argv[4]));
890 printf("Done sending, still listening for \"exit\"\n");
894 for (i = 0;i < numsockets;i++)
898 LHNETADDRESS_ToString(LHNET_AddressFromSocket(sock[i]), addressstring2, sizeof(addressstring2), 1);
899 printf("calling LHNET_CloseSocket(<%s>)\n", addressstring2);
900 LHNET_CloseSocket(sock[i]);
903 printf("calling LHNET_Shutdown()\n");
907 printf("Testing code for lhnet.c\nusage: lhnettest <localportnumber> [<sendnumberoftimes> <sendaddress:port> <sendmessage>]\n");