[refactor] move SplitHostPort() into utilstrencodings

This moves SplitHostPort from libbitcoin_common to libbitcoin_util so it
is available to bitcoin-cli.

Author: jnewbery

src/httpserver.cpp

@@ -7,6 +7,7 @@
 #include "chainparamsbase.h"
 #include "compat.h"
 #include "util.h"
+#include "utilstrencodings.h"
 #include "netbase.h"
 #include "rpc/protocol.h" // For HTTP status codes
 #include "sync.h"

src/netbase.cpp

@@ -58,25 +58,6 @@ std::string GetNetworkName(enum Network net) {
     }
 }
 
-void SplitHostPort(std::string in, int &portOut, std::string &hostOut) {
-    size_t colon = in.find_last_of(':');
-    // if a : is found, and it either follows a [...], or no other : is in the string, treat it as port separator
-    bool fHaveColon = colon != in.npos;
-    bool fBracketed = fHaveColon && (in[0]=='[' && in[colon-1]==']'); // if there is a colon, and in[0]=='[', colon is not 0, so in[colon-1] is safe
-    bool fMultiColon = fHaveColon && (in.find_last_of(':',colon-1) != in.npos);
-    if (fHaveColon && (colon==0 || fBracketed || !fMultiColon)) {
-        int32_t n;
-        if (ParseInt32(in.substr(colon + 1), &n) && n > 0 && n < 0x10000) {
-            in = in.substr(0, colon);
-            portOut = n;
-        }
-    }
-    if (in.size()>0 && in[0] == '[' && in[in.size()-1] == ']')
-        hostOut = in.substr(1, in.size()-2);
-    else
-        hostOut = in;
-}
-
 bool static LookupIntern(const char *pszName, std::vector<CNetAddr>& vIP, unsigned int nMaxSolutions, bool fAllowLookup)
 {
     vIP.clear();

src/netbase.h

@@ -39,7 +39,6 @@ class proxyType
 
 enum Network ParseNetwork(std::string net);
 std::string GetNetworkName(enum Network net);
-void SplitHostPort(std::string in, int &portOut, std::string &hostOut);
 bool SetProxy(enum Network net, const proxyType &addrProxy);
 bool GetProxy(enum Network net, proxyType &proxyInfoOut);
 bool IsProxy(const CNetAddr &addr);

src/test/netbase_tests.cpp

@@ -4,6 +4,7 @@
 
 #include "netbase.h"
 #include "test/test_bitcoin.h"
+#include "utilstrencodings.h"
 
 #include <string>
 

src/utilstrencodings.cpp

@@ -91,6 +91,25 @@ std::vector<unsigned char> ParseHex(const std::string& str)
     return ParseHex(str.c_str());
 }
 
+void SplitHostPort(std::string in, int &portOut, std::string &hostOut) {
+    size_t colon = in.find_last_of(':');
+    // if a : is found, and it either follows a [...], or no other : is in the string, treat it as port separator
+    bool fHaveColon = colon != in.npos;
+    bool fBracketed = fHaveColon && (in[0]=='[' && in[colon-1]==']'); // if there is a colon, and in[0]=='[', colon is not 0, so in[colon-1] is safe
+    bool fMultiColon = fHaveColon && (in.find_last_of(':',colon-1) != in.npos);
+    if (fHaveColon && (colon==0 || fBracketed || !fMultiColon)) {
+        int32_t n;
+        if (ParseInt32(in.substr(colon + 1), &n) && n > 0 && n < 0x10000) {
+            in = in.substr(0, colon);
+            portOut = n;
+        }
+    }
+    if (in.size()>0 && in[0] == '[' && in[in.size()-1] == ']')
+        hostOut = in.substr(1, in.size()-2);
+    else
+        hostOut = in;
+}
+
 std::string EncodeBase64(const unsigned char* pch, size_t len)
 {
     static const char *pbase64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";

src/utilstrencodings.h

@@ -48,6 +48,7 @@ std::string DecodeBase32(const std::string& str);
 std::string EncodeBase32(const unsigned char* pch, size_t len);
 std::string EncodeBase32(const std::string& str);
 
+void SplitHostPort(std::string in, int &portOut, std::string &hostOut);
 std::string i64tostr(int64_t n);
 std::string itostr(int n);
 int64_t atoi64(const char* psz);