avoid usage of ntop and pton functions.

Author: Sebastiano Merlino

src/http_utils.cpp

@@ -28,7 +28,8 @@
 #include <winsock2.h>
 #include <ws2tcpip.h>
 #else
-#include <arpa/inet.h>
+#include <sys/socket.h>
+#include <netdb.h>
 #endif
 #include <sstream>
 #include <iomanip>
@@ -244,36 +245,8 @@ void get_ip_str(
 {
     if(sa)
     {
-        char to_ret[INET6_ADDRSTRLEN] = { '\0' };
-        switch(sa->sa_family)
-        {
-            case AF_INET:
-                if(maxlen == 0)
-                    maxlen = INET_ADDRSTRLEN;
-
-                inet_ntop(AF_INET,
-                        &(((struct sockaddr_in *)sa)->sin_addr),
-                        to_ret,
-                        maxlen
-                );
-
-                break;
-
-            case AF_INET6:
-                if(maxlen == 0)
-                    maxlen = INET6_ADDRSTRLEN;
-
-                inet_ntop(AF_INET6,
-                        &(((struct sockaddr_in6 *)sa)->sin6_addr),
-                        to_ret,
-                        maxlen
-                );
-
-                break;
-            default:
-                strncpy(to_ret, "Unknown AF", 11);
-                return;
-        }
+        char to_ret[NI_MAXHOST];
+        getnameinfo(sa, sizeof (struct sockaddr), to_ret, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
         result = to_ret;
     }
 }
@@ -288,20 +261,6 @@ std::string get_ip_str_new(
     return to_ret;
 }
 
-const struct sockaddr str_to_ip(const std::string& src)
-{
-    struct sockaddr s;
-    if(src.find(":") != std::string::npos)
-    {
-        inet_pton(AF_INET6, src.c_str(), (void*) &s);
-    }
-    else
-    {
-        inet_pton(AF_INET, src.c_str(), (void*) &s);
-    }
-    return s;
-}
-
 short get_port(const struct sockaddr* sa)
 {
     if(sa)

src/httpserver/http_utils.hpp

@@ -347,7 +347,7 @@ void dump_header_map(std::ostream &os, const std::string &prefix,
 **/
 void dump_arg_map(std::ostream &os, const std::string &prefix,
                      const std::map<std::string,std::string,arg_comparator> &map);
-    
+
 /**
  * Process escape sequences ('+'=space, %HH) Updates val in place; the
  * result should be UTF-8 encoded and cannot be larger than the input.
@@ -359,8 +359,6 @@ void dump_arg_map(std::ostream &os, const std::string &prefix,
  */
 size_t http_unescape (char *val);
 
-const struct sockaddr str_to_ip(const std::string& src);
-
 char* load_file (const char *filename);
 
 size_t load_file (const char* filename, char** content);

test/unit/http_utils_test.cpp

@@ -18,8 +18,19 @@
      USA
 */
 
+#if defined(__MINGW32__) || defined(__CYGWIN32__)
+#define _WINDOWS
+#undef _WIN32_WINNT
+#define _WIN32_WINNT 0x600
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#else
+#include <arpa/inet.h>
+#endif
+
 #include "littletest.hpp"
 #include "http_utils.hpp"
+
 #include <cstdio>
 
 using namespace httpserver;
@@ -69,6 +80,19 @@ LT_BEGIN_AUTO_TEST(http_utils_suite, standardize_url)
     LT_CHECK_EQ(result, "/abc/pqr");
 LT_END_AUTO_TEST(standardize_url)
 
+LT_BEGIN_AUTO_TEST(http_utils_suite, ip_to_str)
+    struct sockaddr_in ip4addr;
+
+    ip4addr.sin_family = AF_INET;
+    ip4addr.sin_port = htons(3490);
+    ip4addr.sin_addr.s_addr = inet_addr("127.0.0.1");
+
+    string result = "";
+    http::get_ip_str((struct sockaddr *) &ip4addr, result);
+
+    LT_CHECK_EQ(result, "127.0.0.1");
+LT_END_AUTO_TEST(ip_to_str)
+
 LT_BEGIN_AUTO_TEST_ENV()
     AUTORUN_TESTS()
 LT_END_AUTO_TEST_ENV()