Convert to ObjC++

FossilOrigin-Name: 7c2704b3d77d6e63d960e315bfb601fddbf6fce538b7c5db6da664e04fbce4c2

src/serverutil.mm

@@ -0,0 +1,190 @@
+// misc useful functions used by the server
+
+#include "cube.h"
+
+// all network traffic is in 32bit ints, which are then compressed using the
+// following simple scheme (assumes that most values are small).
+
+void
+putint(uchar *&p, int n)
+{
+	if (n < 128 && n > -127) {
+		*p++ = n;
+	} else if (n < 0x8000 && n >= -0x8000) {
+		*p++ = 0x80;
+		*p++ = n;
+		*p++ = n >> 8;
+	} else {
+		*p++ = 0x81;
+		*p++ = n;
+		*p++ = n >> 8;
+		*p++ = n >> 16;
+		*p++ = n >> 24;
+	};
+};
+
+int
+getint(uchar *&p)
+{
+	int c = *((char *)p);
+	p++;
+	if (c == -128) {
+		int n = *p++;
+		n |= *((char *)p) << 8;
+		p++;
+		return n;
+	} else if (c == -127) {
+		int n = *p++;
+		n |= *p++ << 8;
+		n |= *p++ << 16;
+		return n | (*p++ << 24);
+	} else
+		return c;
+};
+
+void
+sendstring(char *t, uchar *&p)
+{
+	while (*t)
+		putint(p, *t++);
+	putint(p, 0);
+};
+
+const char *modenames[] = {
+    "SP",
+    "DMSP",
+    "ffa/default",
+    "coopedit",
+    "ffa/duel",
+    "teamplay",
+    "instagib",
+    "instagib team",
+    "efficiency",
+    "efficiency team",
+    "insta arena",
+    "insta clan arena",
+    "tactics arena",
+    "tactics clan arena",
+};
+
+const char *
+modestr(int n)
+{
+	return (n >= -2 && n < 12) ? modenames[n + 2] : "unknown";
+};
+
+char msgsizesl[] = // size inclusive message token, 0 for variable or
+                   // not-checked sizes
+    {SV_INITS2C, 4, SV_INITC2S, 0, SV_POS, 12, SV_TEXT, 0, SV_SOUND, 2, SV_CDIS,
+        2, SV_EDITH, 7, SV_EDITT, 7, SV_EDITS, 6, SV_EDITD, 6, SV_EDITE, 6,
+        SV_DIED, 2, SV_DAMAGE, 4, SV_SHOT, 8, SV_FRAGS, 2, SV_MAPCHANGE, 0,
+        SV_ITEMSPAWN, 2, SV_ITEMPICKUP, 3, SV_DENIED, 2, SV_PING, 2, SV_PONG, 2,
+        SV_CLIENTPING, 2, SV_GAMEMODE, 2, SV_TIMEUP, 2, SV_EDITENT, 10,
+        SV_MAPRELOAD, 2, SV_ITEMACC, 2, SV_SENDMAP, 0, SV_RECVMAP, 1,
+        SV_SERVMSG, 0, SV_ITEMLIST, 0, SV_EXT, 0, -1};
+
+char
+msgsizelookup(int msg)
+{
+	for (char *p = msgsizesl; *p >= 0; p += 2)
+		if (*p == msg)
+			return p[1];
+	return -1;
+};
+
+// sending of maps between clients
+
+string copyname;
+int copysize;
+uchar *copydata = NULL;
+
+void
+sendmaps(int n, string mapname, int mapsize, uchar *mapdata)
+{
+	if (mapsize <= 0 || mapsize > 256 * 256)
+		return;
+	strcpy_s(copyname, mapname);
+	copysize = mapsize;
+	if (copydata)
+		free(copydata);
+	copydata = (uchar *)alloc(mapsize);
+	memcpy(copydata, mapdata, mapsize);
+}
+
+ENetPacket *
+recvmap(int n)
+{
+	if (!copydata)
+		return NULL;
+	ENetPacket *packet = enet_packet_create(
+	    NULL, MAXTRANS + copysize, ENET_PACKET_FLAG_RELIABLE);
+	uchar *start = packet->data;
+	uchar *p = start + 2;
+	putint(p, SV_RECVMAP);
+	sendstring(copyname, p);
+	putint(p, copysize);
+	memcpy(p, copydata, copysize);
+	p += copysize;
+	*(ushort *)start = ENET_HOST_TO_NET_16(p - start);
+	enet_packet_resize(packet, p - start);
+	return packet;
+}
+
+#ifdef STANDALONE
+
+void localservertoclient(uchar *buf, int len) {};
+void
+fatal(char *s, char *o)
+{
+	cleanupserver();
+	printf("servererror: %s\n", s);
+	exit(1);
+};
+void *
+alloc(int s)
+{
+	void *b = calloc(1, s);
+	if (!b)
+		fatal("no memory!");
+	return b;
+};
+
+int
+main(int argc, char *argv[])
+{
+	int uprate = 0, maxcl = 4;
+	char *sdesc = "", *ip = "", *master = NULL, *passwd = "";
+
+	for (int i = 1; i < argc; i++) {
+		char *a = &argv[i][2];
+		if (argv[i][0] == '-')
+			switch (argv[i][1]) {
+			case 'u':
+				uprate = atoi(a);
+				break;
+			case 'n':
+				sdesc = a;
+				break;
+			case 'i':
+				ip = a;
+				break;
+			case 'm':
+				master = a;
+				break;
+			case 'p':
+				passwd = a;
+				break;
+			case 'c':
+				maxcl = atoi(a);
+				break;
+			default:
+				printf("WARNING: unknown commandline option\n");
+			};
+	};
+
+	if (enet_initialize() < 0)
+		fatal("Unable to initialise network module");
+	initserver(true, uprate, sdesc, ip, master, passwd, maxcl);
+	return 0;
+};
+#endif