Fixed minor memory leak.

[privoxy.git] / errlog.c

diff --git a/errlog.c b/errlog.c
index 7ab5275..ae98ed3 100644 (file)
--- a/errlog.c
+++ b/errlog.c
@@ -1,4 +1,4 @@
-const char errlog_rcs[] = "$Id: errlog.c,v 1.1.1.1 2001/05/15 13:58:51 oes Exp $";
+const char errlog_rcs[] = "$Id: errlog.c,v 1.10 2001/05/29 11:52:21 oes Exp $";

 /*********************************************************************
  *
  * File        :  $Source: /cvsroot/ijbswa/current/errlog.c,v $
 /*********************************************************************
  *
  * File        :  $Source: /cvsroot/ijbswa/current/errlog.c,v $


@@ -33,6 +33,77 @@ const char errlog_rcs[] = "$Id: errlog.c,v 1.1.1.1 2001/05/15 13:58:51 oes Exp $
  *
  * Revisions   :
  *    $Log: errlog.c,v $
  *
  * Revisions   :
  *    $Log: errlog.c,v $

+ *    Revision 1.10  2001/05/29 11:52:21  oes
+ *    Conditional compilation of w32_socket_error
+ *
+ *    Revision 1.9  2001/05/28 16:15:17  jongfoster
+ *    Improved reporting of errors under Win32.
+ *
+ *    Revision 1.8  2001/05/26 17:25:14  jongfoster
+ *    Added support for CLF (Common Log Format) and fixed LOG_LEVEL_LOG
+ *
+ *    Revision 1.7  2001/05/26 15:21:28  jongfoster
+ *    Activity animation in Win32 GUI now works even if debug==0
+ *
+ *    Revision 1.6  2001/05/25 21:55:08  jongfoster
+ *    Now cleans up properly on FATAL (removes taskbar icon etc)
+ *
+ *    Revision 1.5  2001/05/22 18:46:04  oes
+ *
+ *    - Enabled filtering banners by size rather than URL
+ *      by adding patterns that replace all standard banner
+ *      sizes with the "Junkbuster" gif to the re_filterfile
+ *
+ *    - Enabled filtering WebBugs by providing a pattern
+ *      which kills all 1x1 images
+ *
+ *    - Added support for PCRE_UNGREEDY behaviour to pcrs,
+ *      which is selected by the (nonstandard and therefore
+ *      capital) letter 'U' in the option string.
+ *      It causes the quantifiers to be ungreedy by default.
+ *      Appending a ? turns back to greedy (!).
+ *
+ *    - Added a new interceptor ijb-send-banner, which
+ *      sends back the "Junkbuster" gif. Without imagelist or
+ *      MSIE detection support, or if tinygif = 1, or the
+ *      URL isn't recognized as an imageurl, a lame HTML
+ *      explanation is sent instead.
+ *
+ *    - Added new feature, which permits blocking remote
+ *      script redirects and firing back a local redirect
+ *      to the browser.
+ *      The feature is conditionally compiled, i.e. it
+ *      can be disabled with --disable-fast-redirects,
+ *      plus it must be activated by a "fast-redirects"
+ *      line in the config file, has its own log level
+ *      and of course wants to be displayed by show-proxy-args
+ *      Note: Boy, all the #ifdefs in 1001 locations and
+ *      all the fumbling with configure.in and acconfig.h
+ *      were *way* more work than the feature itself :-(
+ *
+ *    - Because a generic redirect template was needed for
+ *      this, tinygif = 3 now uses the same.
+ *
+ *    - Moved GIFs, and other static HTTP response templates
+ *      to project.h
+ *
+ *    - Some minor fixes
+ *
+ *    - Removed some >400 CRs again (Jon, you really worked
+ *      a lot! ;-)
+ *
+ *    Revision 1.4  2001/05/21 19:32:54  jongfoster
+ *    Added another #ifdef _WIN_CONSOLE
+ *
+ *    Revision 1.3  2001/05/20 01:11:40  jongfoster
+ *    Added support for LOG_LEVEL_FATAL
+ *    Renamed LOG_LEVEL_FRC to LOG_LEVEL_FORCE,
+ *    and LOG_LEVEL_REF to LOG_LEVEL_RE_FILTER
+ *
+ *    Revision 1.2  2001/05/17 22:42:01  oes
+ *     - Cleaned CRLF's from the sources and related files
+ *     - Repaired logging for REF and FRC
+ *

  *    Revision 1.1.1.1  2001/05/15 13:58:51  oes
  *    Initial import of version 2.9.3 source tree
  *
  *    Revision 1.1.1.1  2001/05/15 13:58:51  oes
  *    Initial import of version 2.9.3 source tree
  *


@@ -56,7 +127,9 @@ const char errlog_rcs[] = "$Id: errlog.c,v 1.1.1.1 2001/05/15 13:58:51 oes Exp $
 
 #ifdef _WIN32
 #include <windows.h>
 
 #ifdef _WIN32
 #include <windows.h>

+#ifndef _WIN_CONSOLE

 #include "w32log.h"
 #include "w32log.h"

+#endif /* ndef _WIN_CONSOLE */

 #endif /* def _WIN32 */
 
 #include "errlog.h"
 #endif /* def _WIN32 */
 
 #include "errlog.h"


@@ -64,8 +137,13 @@ const char errlog_rcs[] = "$Id: errlog.c,v 1.1.1.1 2001/05/15 13:58:51 oes Exp $
 
 const char errlog_h_rcs[] = ERRLOG_H_VERSION;
 
 
 const char errlog_h_rcs[] = ERRLOG_H_VERSION;
 

-/* LOG_LEVEL_ERROR and LOG_LEVEL_INFO cannot be turned off. FIXME: Why?*/
-#define LOG_LEVEL_MINIMUM  (LOG_LEVEL_ERROR | LOG_LEVEL_INFO)
+
+/*
+ * LOG_LEVEL_FATAL cannot be turned off.  (There are
+ * some exceptional situations where we need to get a
+ * message to the user).
+ */
+#define LOG_LEVEL_MINIMUM  LOG_LEVEL_FATAL

 
 /* where to log (default: stderr) */
 static FILE *logfp = NULL;
 
 /* where to log (default: stderr) */
 static FILE *logfp = NULL;


@@ -74,7 +152,42 @@ static FILE *logfp = NULL;
 static char * logfilename = NULL;
 
 /* logging detail level.  */
 static char * logfilename = NULL;
 
 /* logging detail level.  */

-static int debug = LOG_LEVEL_MINIMUM;  
+static int debug = (LOG_LEVEL_FATAL | LOG_LEVEL_ERROR | LOG_LEVEL_INFO);  
+
+/* static functions */
+static void fatal_error(const char * error_message);
+static char * w32_socket_strerr(int errcode, char * tmp_buf);
+
+
+/*********************************************************************
+ *
+ * Function    :  fatal_error
+ *
+ * Description :  Displays a fatal error to standard error (or, on 
+ *                a WIN32 GUI, to a dialog box), and exits
+ *                JunkBuster with status code 1.
+ *
+ * Parameters  :
+ *          1  :  error_message = The error message to display.
+ *
+ * Returns     :  Does not return.
+ *
+ *********************************************************************/
+static void fatal_error(const char * error_message)
+{
+#if defined(_WIN32) && !defined(_WIN_CONSOLE)
+   MessageBox(g_hwndLogFrame, error_message, "Internet JunkBuster Error", 
+      MB_OK | MB_ICONERROR | MB_TASKMODAL | MB_SETFOREGROUND | MB_TOPMOST);  
+
+   /* Cleanup - remove taskbar icon etc. */
+   TermLogWindow();
+
+#else /* if !defined(_WIN32) || defined(_WIN_CONSOLE) */
+   fputs(error_message, stderr);
+#endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
+
+   exit(1);
+}

 
 
 /*********************************************************************
 
 
 /*********************************************************************


@@ -112,12 +225,7 @@ void init_error_log(const char *prog_name, const char *logfname, int debuglevel)
    {
       if( !(fp = fopen(logfname, "a")) )
       {
    {
       if( !(fp = fopen(logfname, "a")) )
       {

-         log_error(LOG_LEVEL_ERROR, "init_errlog(): can't open logfile: %s", logfname);
-#if defined(_WIN32) && ! defined (_WIN_CONSOLE)
-            MessageBox(NULL, "init_errlog(): can't open logfile", "Internet JunkBuster Error", 
-               MB_OK | MB_ICONERROR | MB_TASKMODAL | MB_SETFOREGROUND | MB_TOPMOST);  
-#endif /* defined(_WIN32) && ! defined (_WIN_CONSOLE) */
-         exit(1);
+         log_error(LOG_LEVEL_FATAL, "init_errlog(): can't open logfile: %s", logfname);

       }
 
       /* set logging to be completely unbuffered */
       }
 
       /* set logging to be completely unbuffered */


@@ -159,10 +267,22 @@ void log_error(int loglevel, char *fmt, ...)
    int outc = 0;
    long this_thread = 1;  /* was: pthread_t this_thread;*/
 
    int outc = 0;
    long this_thread = 1;  /* was: pthread_t this_thread;*/
 

+#if defined(_WIN32) && !defined(_WIN_CONSOLE)
+   /*
+    * Irrespective of debug setting, a GET/POST/CONNECT makes
+    * the taskbar icon animate.  (There is an option to disable
+    * this but checking that is handled inside LogShowActivity()).
+    */
+   if (loglevel == LOG_LEVEL_GPC)
+   {
+      LogShowActivity();
+   }
+#endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
+

    /* verify if loglevel applies to current settings and bail out if negative */
    /* verify if loglevel applies to current settings and bail out if negative */

-   if(!(loglevel & debug))
+   if ((loglevel & debug) == 0)

    {
    {

-               return;
+      return;

    }
 
    /* FIXME get current thread id */
    }
 
    /* FIXME get current thread id */


@@ -173,24 +293,43 @@ void log_error(int loglevel, char *fmt, ...)
       case LOG_LEVEL_ERROR:
          outc = sprintf(outbuf, "IJB(%d) Error: ", this_thread);
          break;
       case LOG_LEVEL_ERROR:
          outc = sprintf(outbuf, "IJB(%d) Error: ", this_thread);
          break;

+      case LOG_LEVEL_FATAL:
+         outc = sprintf(outbuf, "IJB(%d) Fatal error: ", this_thread);
+         break;

       case LOG_LEVEL_GPC:
          outc = sprintf(outbuf, "IJB(%d) Request: ", this_thread);
          break;
       case LOG_LEVEL_CONNECT:
          outc = sprintf(outbuf, "IJB(%d) Connect: ", this_thread);
          break;
       case LOG_LEVEL_GPC:
          outc = sprintf(outbuf, "IJB(%d) Request: ", this_thread);
          break;
       case LOG_LEVEL_CONNECT:
          outc = sprintf(outbuf, "IJB(%d) Connect: ", this_thread);
          break;

+      case LOG_LEVEL_LOG:
+         outc = sprintf(outbuf, "IJB(%d) Writing: ", this_thread);
+         break;

       case LOG_LEVEL_HEADER:
          outc = sprintf(outbuf, "IJB(%d) Header: ", this_thread);
          break;
       case LOG_LEVEL_INFO:
          outc = sprintf(outbuf, "IJB(%d) Info: ", this_thread);
          break;
       case LOG_LEVEL_HEADER:
          outc = sprintf(outbuf, "IJB(%d) Header: ", this_thread);
          break;
       case LOG_LEVEL_INFO:
          outc = sprintf(outbuf, "IJB(%d) Info: ", this_thread);
          break;

-      case LOG_LEVEL_REF:
+#ifdef PCRS
+      case LOG_LEVEL_RE_FILTER:

          outc = sprintf(outbuf, "IJB(%d) Re-Filter: ", this_thread);
          break;
          outc = sprintf(outbuf, "IJB(%d) Re-Filter: ", this_thread);
          break;

-      case LOG_LEVEL_FRC:
+#endif /* def PCRS */
+#ifdef FORCE_LOAD
+      case LOG_LEVEL_FORCE:

          outc = sprintf(outbuf, "IJB(%d) Force: ", this_thread);
          break;
          outc = sprintf(outbuf, "IJB(%d) Force: ", this_thread);
          break;

+#endif /* def FORCE_LOAD */
+#ifdef FAST_REDIRECTS
+      case LOG_LEVEL_REDIRECTS:
+         outc = sprintf(outbuf, "IJB(%d) Redirect: ", this_thread);
+         break;
+#endif /* def FAST_REDIRECTS */
+      case LOG_LEVEL_CLF:
+         outc = 0;
+         outbuf[0] = '\0';
+         break;

       default:
          outc = sprintf(outbuf, "IJB(%d) UNKNOWN LOG TYPE(%d): ", this_thread, loglevel);
          break;
       default:
          outc = sprintf(outbuf, "IJB(%d) UNKNOWN LOG TYPE(%d): ", this_thread, loglevel);
          break;


@@ -277,11 +416,8 @@ void log_error(int loglevel, char *fmt, ...)
                }
                fputs(outbuf, logfp);
                /* FIXME RACE HAZARD: should end critical section error_log_use here */
                }
                fputs(outbuf, logfp);
                /* FIXME RACE HAZARD: should end critical section error_log_use here */

-#if defined(_WIN32) && ! defined (_WIN_CONSOLE)
-               MessageBox(NULL, outbuf, "Internet JunkBuster Error", 
-                  MB_OK | MB_ICONERROR | MB_TASKMODAL | MB_SETFOREGROUND | MB_TOPMOST);  
-#endif /* defined(_WIN32) && ! defined (_WIN_CONSOLE) */
-               exit(1);
+               fatal_error(outbuf);
+               /* Never get here */

                break;
             }
             if (outc < BUFSIZ-1) 
                break;
             }
             if (outc < BUFSIZ-1) 


@@ -313,19 +449,45 @@ void log_error(int loglevel, char *fmt, ...)
                outbuf[oldoutc] = '\0';
             }
             break;
                outbuf[oldoutc] = '\0';
             }
             break;

+         case 'N':
+            /* Non-standard: Print a counted string.  Takes 2 parameters:
+             * int length, const char * string
+             */
+            ival = va_arg( ap, int );
+            sval = va_arg( ap, char * );
+            if (ival < 0)
+            {
+               ival = 0;
+            }
+            oldoutc = outc;
+            outc += ival;
+            if (outc < BUFSIZ-1)
+            {
+               memcpy(outbuf + oldoutc, sval, ival);
+            }
+            else
+            {
+               outbuf[oldoutc] = '\0';
+            }
+            break;

          case 'E':
             /* Non-standard: Print error code from errno */
          case 'E':
             /* Non-standard: Print error code from errno */

-            ival = errno;
-#ifndef NOSTRERROR
+#ifdef _WIN32
+            ival = WSAGetLastError();
+            sval = w32_socket_strerr(ival, tempbuf);
+#else /* ifndef _WIN32 */
+            ival = errno; 
+#ifdef HAVE_STRERROR

             sval = strerror(ival);
             sval = strerror(ival);

-#else /* def NOSTRERROR */
-            sval = NULL
-#endif /* def NOSTRERROR */
+#else /* ifndef HAVE_STRERROR */
+            sval = NULL;
+#endif /* ndef HAVE_STRERROR */

             if (sval == NULL)
             {
                sprintf(tempbuf, "(errno = %d)", ival);
                sval = tempbuf;
             }
             if (sval == NULL)
             {
                sprintf(tempbuf, "(errno = %d)", ival);
                sval = tempbuf;
             }

+#endif /* ndef _WIN32 */

             oldoutc = outc;
             outc += strlen(sval);
             if (outc < BUFSIZ-1) 
             oldoutc = outc;
             outc += strlen(sval);
             if (outc < BUFSIZ-1) 


@@ -337,6 +499,39 @@ void log_error(int loglevel, char *fmt, ...)
                outbuf[oldoutc] = '\0';
             }
             break;
                outbuf[oldoutc] = '\0';
             }
             break;

+         case 'T':
+            /* Non-standard: Print a Common Log File timestamp */
+            {
+               /*
+                * Write timestamp into tempbuf.
+                *
+                * Complex because not all OSs have tm_gmtoff or
+                * the %z field in strftime()
+                */
+               time_t now; 
+               struct tm *tm_now; 
+               struct tm gmt; 
+               int days, hrs, mins; 
+               time (&now); 
+               gmt = *gmtime (&now); 
+               tm_now = localtime (&now); 
+               days = tm_now->tm_yday - gmt.tm_yday; 
+               hrs = ((days < -1 ? 24 : 1 < days ? -24 : days * 24) + tm_now->tm_hour - gmt.tm_hour); 
+               mins = hrs * 60 + tm_now->tm_min - gmt.tm_min; 
+               strftime (tempbuf, BUFSIZ-6, "%d/%b/%Y:%H:%M:%S ", tm_now); 
+               sprintf (tempbuf + strlen(tempbuf), "%+03d%02d", mins / 60, abs(mins) % 60); 
+            }
+            oldoutc = outc;
+            outc += strlen(tempbuf);
+            if (outc < BUFSIZ-1) 
+            {
+               strcpy(outbuf + oldoutc, tempbuf);
+            }
+            else
+            {
+               outbuf[oldoutc] = '\0';
+            }
+            break;

          default:
             sprintf(outbuf, "IJB(%d) Error: log_error(): Bad format string:\n"
                             "Format = \"%s\"\n"
          default:
             sprintf(outbuf, "IJB(%d) Error: log_error(): Bad format string:\n"
                             "Format = \"%s\"\n"


@@ -348,11 +543,8 @@ void log_error(int loglevel, char *fmt, ...)
             }
             fputs(outbuf, logfp);
             /* FIXME RACE HAZARD: should end critical section error_log_use here */
             }
             fputs(outbuf, logfp);
             /* FIXME RACE HAZARD: should end critical section error_log_use here */

-#if defined(_WIN32) && ! defined (_WIN_CONSOLE)
-            MessageBox(NULL, outbuf, "Internet JunkBuster Error", 
-               MB_OK | MB_ICONERROR | MB_TASKMODAL | MB_SETFOREGROUND | MB_TOPMOST);  
-#endif /* defined(_WIN32) && ! defined (_WIN_CONSOLE) */
-            exit(1);
+            fatal_error(outbuf);
+            /* Never get here */

             break;
 
       } /* switch( p ) */
             break;
 
       } /* switch( p ) */


@@ -397,17 +589,112 @@ void log_error(int loglevel, char *fmt, ...)
 
    fputs(outbuf, logfp);
 
 
    fputs(outbuf, logfp);
 

+   if (loglevel == LOG_LEVEL_FATAL)
+   {
+      fatal_error(outbuf);
+      /* Never get here */
+   }
+

    /* FIXME RACE HAZARD: should end critical section error_log_use here */
 
 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
    /* Write to display */
    LogPutString(outbuf);
    /* FIXME RACE HAZARD: should end critical section error_log_use here */
 
 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
    /* Write to display */
    LogPutString(outbuf);

-   LogShowActivity();

 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
 
 }
 
 
 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
 
 }
 
 

+#ifdef _WIN32
+/*********************************************************************
+ *
+ * Function    :  w32_socket_strerr
+ *
+ * Description :  Translate the return value from WSAGetLastError()
+ *                into a string.
+ *
+ * Parameters  :
+ *          1  :  errcode = The return value from WSAGetLastError().
+ *          2  :  tmp_buf = A temporary buffer that might be used to
+ *                          store the string.
+ *
+ * Returns     :  String representing the error code.  This may be
+ *                a global string constant or a string stored in
+ *                tmp_buf.
+ *
+ *********************************************************************/
+static char * w32_socket_strerr(int errcode, char * tmp_buf)
+{
+#define TEXT_FOR_ERROR(code,text) \
+   if (errcode == code)           \
+   {                              \
+      return #code " - " text;    \
+   }
+
+   TEXT_FOR_ERROR(WSAEACCES, "Permission denied")
+   TEXT_FOR_ERROR(WSAEADDRINUSE, "Address already in use.")
+   TEXT_FOR_ERROR(WSAEADDRNOTAVAIL, "Cannot assign requested address.");
+   TEXT_FOR_ERROR(WSAEAFNOSUPPORT, "Address family not supported by protocol family.");
+   TEXT_FOR_ERROR(WSAEALREADY, "Operation already in progress.");
+   TEXT_FOR_ERROR(WSAECONNABORTED, "Software caused connection abort.");
+   TEXT_FOR_ERROR(WSAECONNREFUSED, "Connection refused.");
+   TEXT_FOR_ERROR(WSAECONNRESET, "Connection reset by peer.");
+   TEXT_FOR_ERROR(WSAEDESTADDRREQ, "Destination address required.");
+   TEXT_FOR_ERROR(WSAEFAULT, "Bad address.");
+   TEXT_FOR_ERROR(WSAEHOSTDOWN, "Host is down.");
+   TEXT_FOR_ERROR(WSAEHOSTUNREACH, "No route to host.");
+   TEXT_FOR_ERROR(WSAEINPROGRESS, "Operation now in progress.");
+   TEXT_FOR_ERROR(WSAEINTR, "Interrupted function call.");
+   TEXT_FOR_ERROR(WSAEINVAL, "Invalid argument.");
+   TEXT_FOR_ERROR(WSAEISCONN, "Socket is already connected.");
+   TEXT_FOR_ERROR(WSAEMFILE, "Too many open sockets.");
+   TEXT_FOR_ERROR(WSAEMSGSIZE, "Message too long.");
+   TEXT_FOR_ERROR(WSAENETDOWN, "Network is down.");
+   TEXT_FOR_ERROR(WSAENETRESET, "Network dropped connection on reset.");
+   TEXT_FOR_ERROR(WSAENETUNREACH, "Network is unreachable.");
+   TEXT_FOR_ERROR(WSAENOBUFS, "No buffer space available.");
+   TEXT_FOR_ERROR(WSAENOPROTOOPT, "Bad protocol option.");
+   TEXT_FOR_ERROR(WSAENOTCONN, "Socket is not connected.");
+   TEXT_FOR_ERROR(WSAENOTSOCK, "Socket operation on non-socket.");
+   TEXT_FOR_ERROR(WSAEOPNOTSUPP, "Operation not supported.");
+   TEXT_FOR_ERROR(WSAEPFNOSUPPORT, "Protocol family not supported.");
+   TEXT_FOR_ERROR(WSAEPROCLIM, "Too many processes.");
+   TEXT_FOR_ERROR(WSAEPROTONOSUPPORT, "Protocol not supported.");
+   TEXT_FOR_ERROR(WSAEPROTOTYPE, "Protocol wrong type for socket.");
+   TEXT_FOR_ERROR(WSAESHUTDOWN, "Cannot send after socket shutdown.");
+   TEXT_FOR_ERROR(WSAESOCKTNOSUPPORT, "Socket type not supported.");
+   TEXT_FOR_ERROR(WSAETIMEDOUT, "Connection timed out.");
+   TEXT_FOR_ERROR(WSAEWOULDBLOCK, "Resource temporarily unavailable.");
+   TEXT_FOR_ERROR(WSAHOST_NOT_FOUND, "Host not found.");
+   TEXT_FOR_ERROR(WSANOTINITIALISED, "Successful WSAStartup not yet performed.");
+   TEXT_FOR_ERROR(WSANO_DATA, "Valid name, no data record of requested type.");
+   TEXT_FOR_ERROR(WSANO_RECOVERY, "This is a non-recoverable error.");
+   TEXT_FOR_ERROR(WSASYSNOTREADY, "Network subsystem is unavailable.");
+   TEXT_FOR_ERROR(WSATRY_AGAIN, "Non-authoritative host not found.");
+   TEXT_FOR_ERROR(WSAVERNOTSUPPORTED, "WINSOCK.DLL version out of range.");
+   TEXT_FOR_ERROR(WSAEDISCON, "Graceful shutdown in progress.");
+   /*
+    * The following error codes are documented in the Microsoft WinSock
+    * reference guide, but don't actually exist.
+    *
+    * TEXT_FOR_ERROR(WSA_INVALID_HANDLE, "Specified event object handle is invalid.");
+    * TEXT_FOR_ERROR(WSA_INVALID_PARAMETER, "One or more parameters are invalid.");
+    * TEXT_FOR_ERROR(WSAINVALIDPROCTABLE, "Invalid procedure table from service provider.");
+    * TEXT_FOR_ERROR(WSAINVALIDPROVIDER, "Invalid service provider version number.");
+    * TEXT_FOR_ERROR(WSA_IO_PENDING, "Overlapped operations will complete later.");
+    * TEXT_FOR_ERROR(WSA_IO_INCOMPLETE, "Overlapped I/O event object not in signaled state.");
+    * TEXT_FOR_ERROR(WSA_NOT_ENOUGH_MEMORY, "Insufficient memory available.");
+    * TEXT_FOR_ERROR(WSAPROVIDERFAILEDINIT, "Unable to initialize a service provider.");
+    * TEXT_FOR_ERROR(WSASYSCALLFAILURE, "System call failure.");
+    * TEXT_FOR_ERROR(WSA_OPERATION_ABORTED, "Overlapped operation aborted.");
+    */
+
+   sprintf(tmp_buf, "(error number %d)", errcode);
+   return tmp_buf;
+}
+#endif /* def _WIN32 */
+
+

 /*
   Local Variables:
   tab-width: 3
 /*
   Local Variables:
   tab-width: 3