--- libaitcfg/src/parse.c	2012/08/06 15:08:26	1.10.2.1
+++ libaitcfg/src/parse.c	2012/08/30 13:49:44	1.10.2.2
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@openbsd-bg.org>
 *
 * $Author: misho $
-* $Id: parse.c,v 1.10.2.1 2012/08/06 15:08:26 misho Exp $
+* $Id: parse.c,v 1.10.2.2 2012/08/30 13:49:44 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -363,6 +363,11 @@ cfgReadLines(FILE *f, const char *delim, const char *e
 	struct tagCfg *d, *av = NULL;
 	char *psAttr, *psVal = NULL;
 
+	if (!cfg)
+		return -1;
+	if (!delim)
+		delim = ATR_LINES_DELIM;
+
 	while (!feof(f)) {
 		memset(line, 0, sizeof line);
 		fgets(line, sizeof line - 1, f);
@@ -421,3 +426,56 @@ cfgReadLines(FILE *f, const char *delim, const char *e
 	return 0;
 }
 
+/*
+ * cfgWriteLines() - Write custom lines and export data to variable
+ *
+ * @f = File resource
+ * @delim = Custom delimiter, if =NULL default is '='
+ * @eol = End of line string, if =NULL default is "\n"
+ * @section = Export only section, if =NULL default is all
+ * @cfg = Config root
+ * return: =NULL error or !=NULL exported data, must be free after use with io_freeVar()
+ */
+ait_val_t *
+cfgWriteLines(FILE *f, const char *delim, const char *eol, const char *section, cfg_root_t * __restrict cfg)
+{
+	ait_val_t *v = NULL;
+	struct tagCfg *av;
+
+	if (!cfg)
+		return NULL;
+	if (!delim)
+		delim = ATR_LINES_DELIM;
+	if (!eol)
+		eol = EOL_LINES_DELIM;
+	if (!(v = io_allocVar())) {
+		cfg_SetErr(io_GetErrno(), "%s", io_GetError());
+		return NULL;
+	} else
+		AIT_INIT_VAL2(v, string);
+
+	SLIST_FOREACH(av, cfg, cfg_next) {
+		if (AIT_ISEMPTY(&av->cfg_attr))
+			continue;
+		if (section) {
+			if (!AIT_ISEMPTY(&av->cfg_sec) && *section)
+				continue;
+			if (strcmp(section, AIT_GET_STR(&av->cfg_sec)))
+				continue;
+		}
+
+		if (!AIT_ISEMPTY(&av->cfg_sec)) {
+			AIT_SET_STRCAT(v, AIT_GET_STR(&av->cfg_sec));
+			AIT_SET_STRCAT(v, SEC_LINES_DELIM);
+		}
+		AIT_SET_STRCAT(v, AIT_GET_STR(&av->cfg_attr));
+		AIT_SET_STRCAT(v, delim);
+		if (!AIT_ISEMPTY(&av->cfg_val))
+			AIT_SET_STRCAT(v, AIT_GET_STR(&av->cfg_val));
+		AIT_SET_STRCAT(v, eol);
+	}
+
+	if (f)
+		fputs(AIT_GET_STR(v), f);
+	return v;
+}