1 files changed, 152 insertions, 0 deletions
diff --git a/src/qcommon/IpToCountryResolver.c b/src/qcommon/IpToCountryResolver.c
new file mode 100644
index 0000000..f2fd97e
--- /dev/null
+++ b/src/qcommon/IpToCountryResolver.c
@@ -0,0 +1,152 @@
+#include "IpToCountryResolver.h"
+#include "q_shared.h"
+
+void convertToCamelCase(char *str)
+{
+    int upper = 1;
+    char *pos = str;
+    while (*pos != '\0') {
+        if (*pos != ' ') {
+            if (upper) {
+                (*pos) = toupper(*pos);
+                upper = 0;
+            }
+            else
+                (*pos) = tolower(*pos);
+        } else {
+            upper = 1;
+        }
+        pos++;
+    }
+}
+
+IpToCountryInfo *FindCountryInfoUI(unsigned int ip, IpToCountryList *infoList)
+{
+    int abound = 0;
+    int zbound = infoList->size-1;
+    int tbound = 0;
+    IpToCountryInfo *telement;
+
+    if (infoList->size == 0)
+        return NULL;
+
+    while (abound <= zbound)
+    {
+        tbound = (abound+zbound)/2;
+        telement = &infoList->infoArray[tbound];
+
+        if (ip < telement->ipFrom)
+            zbound = tbound-1;
+        else if (ip > telement->ipTo)
+            abound = tbound+1;
+        else
+            return telement;
+    }
+    return NULL;
+}
+
+IpToCountryInfo *FindCountryInfoB(unsigned int parts[4], unsigned int length, IpToCountryList *infoList)
+{
+    return FindCountryInfoUI(ipbyte_to_int(parts, length),infoList);
+}
+
+IpToCountryInfo *FindCountryInfoS(const char *ip_addr, IpToCountryList *infoList)
+{
+    return FindCountryInfoUI(ipstr_to_int(ip_addr),infoList);
+}
+
+unsigned int ipbyte_to_int(unsigned int parts[4], unsigned int length)
+{
+    unsigned int val = parts[length-1];
+
+    switch (length) {
+
+	case 1:				/* a -- 32 bits */
+		break;
+
+	case 2:				/* a.b -- 8.24 bits */
+		if (val > 0xffffff)
+			return (0);
+		val |= parts[0] << 24;
+		break;
+
+	case 3:				/* a.b.c -- 8.8.16 bits */
+		if (val > 0xffff)
+			return (0);
+		val |= (parts[0] << 24) | (parts[1] << 16);
+		break;
+
+	case 4:				/* a.b.c.d -- 8.8.8.8 bits */
+		if (val > 0xff)
+			return (0);
+		val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8);
+		break;
+	}
+
+	return val;
+}
+
+unsigned int ipstr_to_int(const char *cp_arg)
+{
+	register unsigned long val;
+	register int base, n;
+	register unsigned char c;
+	register unsigned const char *cp = (unsigned const char *) cp_arg;
+	unsigned int parts[4];
+	register unsigned int *pp = parts;
+
+	for (;;) {
+		/*
+		 * Collect number up to ``.''.
+		 * Values are specified as for C:
+		 * 0x=hex, 0=octal, other=decimal.
+		 */
+		val = 0; base = 10;
+		if (*cp == '0') {
+			if (*++cp == 'x' || *cp == 'X')
+				base = 16, cp++;
+			else
+				base = 8;
+		}
+		while ((c = *cp) != '\0') {
+			if (isascii(c) && isdigit(c)) {
+				val = (val * base) + (c - '0');
+				cp++;
+				continue;
+			}
+			if (base == 16 && isascii(c) && isxdigit(c)) {
+				val = (val << 4) +
+					(c + 10 - (islower(c) ? 'a' : 'A'));
+				cp++;
+				continue;
+			}
+			break;
+		}
+		if (*cp == '.') {
+			/*
+			 * Internet format:
+			 *	a.b.c.d
+			 *	a.b.c	(with c treated as 16-bits)
+			 *	a.b	(with b treated as 24 bits)
+			 */
+			if (pp >= parts + 3 || val > 0xff)
+				return (0);
+			*pp++ = val, cp++;
+		} else {
+		    *pp = val;
+			break;
+		}
+	}
+	/*
+	 * Check for trailing characters.
+	 */
+	if (*cp && (!isascii(*cp) || !isspace(*cp)))
+		return (0);
+	/*
+	 * Concoct the address according to
+	 * the number of parts specified.
+	 */
+	n = pp - parts + 1;
+
+    return ipbyte_to_int(parts,n);
+}