bugfix in debug system and more instrumentation to find an issue

bugfix: debug string larger than 1K were improperly displayed. Max size
is now 32K, and if a string is even longer it is meaningful truncated.

6 files changed, 31 insertions, 12 deletions

diff --git a/ChangeLog b/ChangeLog
index 8759c846..1c81f3aa 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,8 @@
 ---------------------------------------------------------------------------
+Version 5.3.2  [DEVEL] (rgerhards), 2009-10-??
+- bugfix: debug string larger than 1K were improperly displayed. Max size
+  is now 32K, and if a string is even longer it is meaningful truncated.
+---------------------------------------------------------------------------
 Version 5.3.1  [DEVEL] (rgerhards), 2009-10-05
 - added $AbortOnUncleanConfig directive - permits to prevent startup when
   there are problems with the configuration file. See it's doc for
diff --git a/configure.ac b/configure.ac
index 07fd0dac..e3f60b5c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ(2.61)
-AC_INIT([rsyslog],[5.3.1],[rsyslog@lists.adiscon.com])
+AC_INIT([rsyslog],[5.3.2],[rsyslog@lists.adiscon.com])
 AM_INIT_AUTOMAKE
 
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
diff --git a/plugins/imudp/imudp.c b/plugins/imudp/imudp.c
index 735042a4..3fabf1a2 100644
--- a/plugins/imudp/imudp.c
+++ b/plugins/imudp/imudp.c
@@ -244,7 +244,8 @@ processSocket(int fd, struct sockaddr_storage *frominetPrev, int *pbIsPermitted,
 			}
 		}
 
-		DBGPRINTF("recv(%d,%d)/%s,acl:%d,msg:%.80s\n", fd, (int) lenRcvBuf, fromHost, *pbIsPermitted, pRcvBuf);
+		//DBGPRINTF("recv(%d,%d)/%s,acl:%d,msg:%.80s\n", fd, (int) lenRcvBuf, fromHost, *pbIsPermitted, pRcvBuf);
+		DBGPRINTF("recv(%d,%d)/%s,acl:%d,msg:%s\n", fd, (int) lenRcvBuf, fromHost, *pbIsPermitted, pRcvBuf);
 
 		if(*pbIsPermitted)  {
 			if((iTimeRequery == 0) || (iNbrTimeUsed++ % iTimeRequery) == 0) {
diff --git a/runtime/debug.c b/runtime/debug.c
index fb751efb..7c938008 100644
--- a/runtime/debug.c
+++ b/runtime/debug.c
@@ -960,7 +960,7 @@ void
 dbgprintf(char *fmt, ...)
 {
 	va_list ap;
-	char pszWriteBuf[1024];
+	char pszWriteBuf[32*1024];
 	size_t lenWriteBuf;
 
 	if(!(Debug && debugging_on))
@@ -969,6 +969,16 @@ dbgprintf(char *fmt, ...)
 	va_start(ap, fmt);
 	lenWriteBuf = vsnprintf(pszWriteBuf, sizeof(pszWriteBuf), fmt, ap);
 	va_end(ap);
+
+	if(lenWriteBuf >= sizeof(pszWriteBuf)) {
+		/* if we need to truncate, do it in a somewhat useful way... */
+  		pszWriteBuf[sizeof(pszWriteBuf) - 5] = '!';
+  		pszWriteBuf[sizeof(pszWriteBuf) - 4] = '.';
+  		pszWriteBuf[sizeof(pszWriteBuf) - 3] = '.';
+  		pszWriteBuf[sizeof(pszWriteBuf) - 2] = '.';
+  		pszWriteBuf[sizeof(pszWriteBuf) - 1] = '\n';
+		lenWriteBuf = sizeof(pszWriteBuf);
+	}
 	dbgprint(NULL, pszWriteBuf, lenWriteBuf);
 }
 
diff --git a/runtime/parser.c b/runtime/parser.c
index 466066e7..3c90c447 100644
--- a/runtime/parser.c
+++ b/runtime/parser.c
@@ -231,14 +231,14 @@ sanitizeMessage(msg_t *pMsg)
 			 * can not handle it! -- rgerhards, 2009-08-26
 			 */
 			if(pszMsg[iSrc] == '\0' || bEscapeCCOnRcv) {
-			/* we are configured to escape control characters. Please note
-			 * that this most probably break non-western character sets like
-			 * Japanese, Korean or Chinese. rgerhards, 2007-07-17
-			 */
-			pDst[iDst++] = cCCEscapeChar;
-			pDst[iDst++] = '0' + ((pszMsg[iSrc] & 0300) >> 6);
-			pDst[iDst++] = '0' + ((pszMsg[iSrc] & 0070) >> 3);
-			pDst[iDst++] = '0' + ((pszMsg[iSrc] & 0007));
+				/* we are configured to escape control characters. Please note
+				 * that this most probably break non-western character sets like
+				 * Japanese, Korean or Chinese. rgerhards, 2007-07-17
+				 */
+				pDst[iDst++] = cCCEscapeChar;
+				pDst[iDst++] = '0' + ((pszMsg[iSrc] & 0300) >> 6);
+				pDst[iDst++] = '0' + ((pszMsg[iSrc] & 0070) >> 3);
+				pDst[iDst++] = '0' + ((pszMsg[iSrc] & 0007));
 			}
 		} else {
 			pDst[iDst++] = pszMsg[iSrc];
diff --git a/template.c b/template.c
index f3a8e057..1e0c9613 100644
--- a/template.c
+++ b/template.c
@@ -86,6 +86,7 @@ rsRetVal tplToString(struct template *pTpl, msg_t *pMsg, uchar **ppBuf, size_t *
 	unsigned short bMustBeFreed;
 	uchar *pVal;
 	size_t iLenVal;
+int propid = -1;
 
 	assert(pTpl != NULL);
 	assert(pMsg != NULL);
@@ -101,10 +102,12 @@ rsRetVal tplToString(struct template *pTpl, msg_t *pMsg, uchar **ppBuf, size_t *
 	iBuf = 0;
 	while(pTpe != NULL) {
 		if(pTpe->eEntryType == CONSTANT) {
+propid = -1;
 			pVal = (uchar*) pTpe->data.constant.pConstant;
 			iLenVal = pTpe->data.constant.iLenConstant;
 			bMustBeFreed = 0;
 		} else 	if(pTpe->eEntryType == FIELD) {
+propid = pTpe->data.field.propid;
 			pVal = (uchar*) MsgGetProp(pMsg, pTpe, pTpe->data.field.propid, &iLenVal, &bMustBeFreed);
 			/* we now need to check if we should use SQL option. In this case,
 			 * we must go over the generated string and escape '\'' characters.
@@ -118,7 +121,8 @@ rsRetVal tplToString(struct template *pTpl, msg_t *pMsg, uchar **ppBuf, size_t *
 				doSQLEscape(&pVal, &iLenVal, &bMustBeFreed, 0);
 		}
 		/* got source, now copy over */
-		if(iBuf + iLenVal + 1 >= *pLenBuf) /* we reserve one char for the final \0! */
+dbgprintf("copying prop id %3d (entry type %d) of length %d ('%s')\n", propid, pTpe->eEntryType, (int) iLenVal, pVal);
+		if(iBuf + iLenVal >= *pLenBuf) /* we reserve one char for the final \0! */
 			CHKiRet(ExtendBuf(ppBuf, pLenBuf, iBuf + iLenVal + 1));
 
 		if(iLenVal > 0) { /* may be zero depending on property */