Index: test/test
===================================================================
--- test/test.orig
+++ test/test
@@ -427,4 +427,26 @@ test.log 0
 test.log.1 0 zero
 EOF
 
+# check rotation with extension appended to the filename
+cleanup 17
+
+preptest test.log 17 1 0
+$RLR test-config.17 --force
+
+checkoutput <<EOF
+test.log 0
+test.log.1.newext 0 zero
+EOF
+
+# check rotation with extension moved after the number
+cleanup 18
+
+preptest test.log 18 1 0
+$RLR test-config.18 --force
+
+checkoutput <<EOF
+test.log 0
+test.1.log 0 zero
+EOF
+
 # cleanup
Index: config.c
===================================================================
--- config.c.orig
+++ config.c
@@ -519,6 +519,7 @@ int readAllConfigPaths(const char **path
 		.last = NULL,
 		.logAddress = NULL,
 		.extension = NULL,
+		.addextension = NULL,
 		.compress_prog = NULL,
 		.uncompress_prog = NULL,
 		.compress_ext = NULL,
@@ -1177,6 +1178,19 @@ static int readConfigFile(const char *co
 					message(MESS_DEBUG, "extension is now %s\n",
 						newlog->extension);
 
+				} else if (!strcmp(key, "addextension")) {
+					if ((key = isolateValue
+						(configFile, lineNum, "addextension name", &start,
+							&buf, length)) != NULL) {
+						freeLogItem (addextension);
+						newlog->addextension = key;
+						key = NULL;
+					}
+					else continue;
+
+					message(MESS_DEBUG, "addextension is now %s\n",
+						newlog->addextension);
+
 				} else if (!strcmp(key, "compresscmd")) {
 					freeLogItem (compress_prog);
 
Index: logrotate.8
===================================================================
--- logrotate.8.orig
+++ logrotate.8
@@ -248,6 +248,15 @@ appears after \fIext\fR. For example you
 and want to rotate it to mylog.1.foo.gz instead of mylog.foo.1.gz.
 
 .TP
+\fBaddextension \fIext\fR
+Log files are given the final extension \fIext\fR after rotation. If
+the original file already ends with \fIext\fR, the extension is not
+duplicated, but merely moved to the end, i.e. both \fBfilename\fR and
+\fBfilename\fIext\fR would get rotated to filename.1\fIext\fR. If
+compression is used, the compression extension (normally \fB.gz\fR)
+appears after \fIext\fR.
+
+.TP
 \fBifempty\fR
 Rotate the log file even if it is empty, overriding the \fBnotifempty\fR
 option (\fBifempty\fR is the default).
Index: logrotate.c
===================================================================
--- logrotate.c.orig
+++ logrotate.c
@@ -867,6 +867,24 @@ int prerotateSingleLog(struct logInfo *l
 
     rotNames->baseName = strdup(ourBaseName(log->files[logNum]));
 
+    if (log->addextension) {
+        size_t baseLen = strlen(rotNames->baseName);
+	size_t extLen = strlen(log->addextension);
+	if (baseLen >= extLen &&
+	    strncmp(&(rotNames->baseName[baseLen - extLen]),
+	      log->addextension, extLen) == 0) {
+	char *tempstr;
+
+	fileext = log->addextension;
+	tempstr = calloc(baseLen - extLen + 1, sizeof(char));
+	strncat(tempstr, rotNames->baseName, baseLen - extLen);
+	free(rotNames->baseName);
+	rotNames->baseName = tempstr;
+	} else {
+	    fileext = log->addextension;
+	}
+    }
+
     if (log->extension &&
 	strncmp(&
 		(rotNames->
Index: logrotate.h
===================================================================
--- logrotate.h.orig
+++ logrotate.h
@@ -44,6 +44,7 @@ struct logInfo {
     char *pre, *post, *first, *last;
     char *logAddress;
     char *extension;
+    char *addextension;
     char *compress_prog;
     char *uncompress_prog;
     char *compress_ext;
Index: test/test-config.17.in
===================================================================
--- /dev/null
+++ test/test-config.17.in
@@ -0,0 +1,7 @@
+create
+
+&DIR&/test.log {
+    monthly
+    rotate 1
+    addextension .newext
+}
Index: test/test-config.18.in
===================================================================
--- /dev/null
+++ test/test-config.18.in
@@ -0,0 +1,7 @@
+create
+
+&DIR&/test.log {
+    monthly
+    rotate 1
+    addextension .log
+}