Initial commit.

ircDDB/IRCutils.cpp

@@ -0,0 +1,179 @@
+/*
+
+CIRCDDB - ircDDB client library in C++
+
+Copyright (C) 2010-2011   Michael Dirska, DL1BFF (dl1bff@mdx.de)
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+
+#if defined(WIN32)
+
+#define WIN32_LEAN_AND_MEAN
+
+#include <winsock2.h>
+#include <ws2tcpip.h>
+
+#else
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+
+#endif
+
+
+
+#include <wx/wx.h>
+
+#include "IRCutils.h"
+
+
+int getAllIPV4Addresses ( const char * name, unsigned short port,
+    unsigned int * num, struct sockaddr_in * addr, unsigned int max_addr )
+{
+
+  struct addrinfo hints;
+  struct addrinfo * res;
+
+  memset(&hints, 0x00, sizeof(struct addrinfo));
+  hints.ai_family = AF_INET;
+  hints.ai_socktype = SOCK_STREAM;
+
+  int r = getaddrinfo( name, NULL, &hints, &res );
+
+  if (r == 0)
+  {
+    struct addrinfo * rp;
+    unsigned int numAddr = 0;
+
+    for (rp = res; rp != NULL; rp = rp->ai_next)
+    {
+      if (rp->ai_family == AF_INET)
+      {
+        numAddr ++;
+      }
+    }
+
+    if (numAddr > 0)
+    {
+      if (numAddr > max_addr)
+      {
+        numAddr = max_addr;
+      }
+
+      int * shuffle = new int[numAddr];
+
+      unsigned int i;
+
+      for (i=0; i < numAddr; i++)
+      {
+        shuffle[i] = i;
+      }
+
+      for (i=0; i < (numAddr - 1); i++)
+      {
+        if (rand() & 1)
+        {
+          int tmp;
+          tmp = shuffle[i];
+          shuffle[i] = shuffle[i+1];
+          shuffle[i+1] = tmp;
+        }
+      }
+
+      for (i=(numAddr - 1); i > 0; i--)
+      {
+        if (rand() & 1)
+        {
+          int tmp;
+          tmp = shuffle[i];
+          shuffle[i] = shuffle[i-1];
+          shuffle[i-1] = tmp;
+        }
+      }
+
+      for (rp = res, i=0 ; (rp != NULL) && (i < numAddr); rp = rp->ai_next)
+      {
+        if (rp->ai_family == AF_INET)
+        {
+          memcpy( addr+shuffle[i], rp->ai_addr, sizeof (struct sockaddr_in) );
+
+          addr[shuffle[i]].sin_port = htons(port);
+
+          i++;
+        }
+      }
+
+      delete[] shuffle;
+    }
+
+    *num = numAddr;
+
+    freeaddrinfo(res);
+
+    return 0;
+
+  }
+  else
+  {
+    wxString e( gai_strerror(r), wxConvUTF8);
+
+    wxLogWarning(wxT("getaddrinfo: ") + e );
+
+    return 1;
+  }
+
+
+}
+
+
+
+
+
+void safeStringCopy (char * dest, const char * src, unsigned int buf_size)
+{
+  unsigned int i = 0;
+
+  while (i < (buf_size - 1)  &&  (src[i] != 0))
+  {
+    dest[i] = src[i];
+    i++;
+  }
+
+  dest[i] = 0;
+}
+
+
+wxString getCurrentTime(void)
+{
+  time_t now = time(NULL);
+  struct tm* tm;
+  struct tm tm_buf;
+  char buffer[25];
+
+#if defined(__WINDOWS__)
+  gmtime_s( &tm_buf, &now );
+  tm = &tm_buf;
+#else
+  tm = gmtime_r(&now, &tm_buf);
+#endif
+
+  strftime(buffer, sizeof buffer, "%Y-%m-%d %H:%M:%S", tm);
+
+  return wxString(buffer, wxConvLocal);
+}
+