Arrange for proper newline termination of syslogger's own messages,
authorTom Lane <tgl@sss.pgh.pa.us>
Fri, 6 Aug 2004 19:17:31 +0000 (19:17 +0000)
committerTom Lane <tgl@sss.pgh.pa.us>
Fri, 6 Aug 2004 19:17:31 +0000 (19:17 +0000)
per Andreas.

src/backend/postmaster/syslogger.c

index 7f8f2b106a866536b479ba9e632914dc822db09f..72a33fe3cb6673d88f4996dc464db34329e5aa9f 100644 (file)
@@ -18,7 +18,7 @@
  *
  *
  * IDENTIFICATION
- *   $PostgreSQL: pgsql/src/backend/postmaster/syslogger.c,v 1.3 2004/08/06 16:06:59 tgl Exp $
+ *   $PostgreSQL: pgsql/src/backend/postmaster/syslogger.c,v 1.4 2004/08/06 19:17:31 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -102,6 +102,7 @@ static volatile sig_atomic_t got_SIGHUP = false;
 static pid_t syslogger_forkexec(void);
 static void syslogger_parseArgs(int argc, char *argv[]);
 #endif
+static void write_syslogger_file_binary(const char *buffer, int count);
 #ifdef WIN32
 static unsigned int __stdcall pipeThread(void *arg);
 #endif
@@ -309,7 +310,7 @@ SysLoggerMain(int argc, char *argv[])
            }
            else if (bytesRead > 0)
            {
-               write_syslogger_file(logbuffer, bytesRead);
+               write_syslogger_file_binary(logbuffer, bytesRead);
                continue;
            }
            else
@@ -494,13 +495,16 @@ SysLogger_Start(void)
                close(syslogPipe[1]);
                syslogPipe[1] = -1;
 #else
+               int     fd;
+
                fflush(stderr);
-               if (dup2(_open_osfhandle((long)syslogPipe[1],
-                                        _O_APPEND | _O_TEXT),
-                        _fileno(stderr)) < 0)
+               fd = _open_osfhandle((long) syslogPipe[1],
+                                    _O_APPEND | _O_TEXT);
+               if (dup2(fd, _fileno(stderr)) < 0)
                    ereport(FATAL,
                            (errcode_for_file_access(),
                             errmsg("could not redirect stderr: %m")));
+               close(fd);
                /* Now we are done with the write end of the pipe. */
                CloseHandle(syslogPipe[1]);
                syslogPipe[1] = 0;
@@ -590,7 +594,7 @@ syslogger_parseArgs(int argc, char *argv[])
    if (fd != 0)
    {
        fd = _open_osfhandle(fd, _O_APPEND);
-       if (fd != 0)
+       if (fd > 0)
        {
            syslogFile = fdopen(fd, "a");
            setvbuf(syslogFile, NULL, LBF_MODE, 0);
@@ -609,7 +613,7 @@ syslogger_parseArgs(int argc, char *argv[])
  */
 
 /*
- * Write to the currently open logfile
+ * Write text to the currently open logfile
  *
  * This is exported so that elog.c can call it when am_syslogger is true.
  * This allows the syslogger process to record elog messages of its own,
@@ -617,6 +621,48 @@ syslogger_parseArgs(int argc, char *argv[])
  */
 void
 write_syslogger_file(const char *buffer, int count)
+{
+#ifdef WIN32
+   /*
+    * On Windows we need to do our own newline-to-CRLF translation.
+    */
+   char    convbuf[256];
+   char   *p;
+   int     n;
+
+   p = convbuf;
+   n = 0;
+   while (count-- > 0)
+   {
+        if (*buffer == '\n')
+        {
+            *p++ = '\r';
+           n++;
+        }
+        *p++ = *buffer++;
+       n++;
+       if (n >= sizeof(convbuf) - 1)
+       {
+           write_syslogger_file_binary(convbuf, n);
+           p = convbuf;
+           n = 0;
+       }
+    }
+   if (n > 0)
+       write_syslogger_file_binary(convbuf, n);
+#else  /* !WIN32 */
+   write_syslogger_file_binary(buffer, count);
+#endif
+}
+
+/*
+ * Write binary data to the currently open logfile
+ *
+ * On Windows the data arriving in the pipe already has CR/LF newlines,
+ * so we must send it to the file without further translation.
+ */
+static void
+write_syslogger_file_binary(const char *buffer, int count)
 {
     int rc;
 
@@ -664,7 +710,7 @@ pipeThread(void *arg)
                     errmsg("could not read from logger pipe: %m")));
        }
         else if (bytesRead > 0)
-            write_syslogger_file(logbuffer, bytesRead);
+            write_syslogger_file_binary(logbuffer, bytesRead);
     }
 
    /* We exit the above loop only upon detecting pipe EOF */