From d5f8a6f933f00bbdfcfb6a2b86674d87b854a940 Mon Sep 17 00:00:00 2001
From: Ghislain MARY <ghislain.mary@belledonne-communications.com>
Date: Thu, 11 Oct 2012 15:35:08 +0200
Subject: [PATCH] Add handling of ranges in the config file.

---
 coreapi/lpconfig.c | 25 +++++++++++++++++++++++++
 coreapi/lpconfig.h | 14 ++++++++++++++
 2 files changed, 39 insertions(+)

diff --git a/coreapi/lpconfig.c b/coreapi/lpconfig.c
index 0efdc335e..46d683c59 100644
--- a/coreapi/lpconfig.c
+++ b/coreapi/lpconfig.c
@@ -271,6 +271,25 @@ const char *lp_config_get_string(LpConfig *lpconfig, const char *section, const
 	return default_string;
 }
 
+bool_t lp_config_get_range(LpConfig *lpconfig, const char *section, const char *key, int *min, int *max, int default_min, int default_max) {
+	const char *str = lp_config_get_string(lpconfig, section, key, NULL);
+	if (str != NULL) {
+		char *minusptr = strchr(str, '-');
+		if ((minusptr == NULL) || (minusptr == str)) {
+			*min = default_min;
+			*max = default_max;
+			return FALSE;
+		}
+		*min = atoi(str);
+		*max = atoi(minusptr + 1);
+		return TRUE;
+	} else {
+		*min = default_min;
+		*max = default_max;
+		return TRUE;
+	}
+}
+
 int lp_config_get_int(LpConfig *lpconfig,const char *section, const char *key, int default_value){
 	const char *str=lp_config_get_string(lpconfig,section,key,NULL);
 	if (str!=NULL) {
@@ -324,6 +343,12 @@ void lp_config_set_string(LpConfig *lpconfig,const char *section, const char *ke
 	lpconfig->modified++;
 }
 
+void lp_config_set_range(LpConfig *lpconfig, const char *section, const char *key, int min_value, int max_value) {
+	char tmp[30];
+	snprintf(tmp, sizeof(tmp), "%i-%i", min_value, max_value);
+	lp_config_set_string(lpconfig, section, key, tmp);
+}
+
 void lp_config_set_int(LpConfig *lpconfig,const char *section, const char *key, int value){
 	char tmp[30];
 	snprintf(tmp,sizeof(tmp),"%i",value);
diff --git a/coreapi/lpconfig.h b/coreapi/lpconfig.h
index a27f7e39a..b672e4cbf 100644
--- a/coreapi/lpconfig.h
+++ b/coreapi/lpconfig.h
@@ -59,6 +59,14 @@ int lp_config_read_file(LpConfig *lpconfig, const char *filename);
 **/
 const char *lp_config_get_string(LpConfig *lpconfig, const char *section, const char *key, const char *default_string);
 int lp_config_read_file(LpConfig *lpconfig, const char *filename);
+/**
+ * Retrieves a configuration item as a range, given its section, key, and default min and max values.
+ *
+ * @ingroup misc
+ * @return TRUE if the value is successfully parsed as a range, FALSE otherwise.
+ * If FALSE is returned, min and max are filled respectively with default_min and default_max values.
+ */
+bool_t lp_config_get_range(LpConfig *lpconfig, const char *section, const char *key, int *min, int *max, int default_min, int default_max);
 /**
  * Retrieves a configuration item as an integer, given its section, key, and default value.
  * 
@@ -90,6 +98,12 @@ float lp_config_get_float(LpConfig *lpconfig,const char *section, const char *ke
  * @ingroup misc
 **/
 void lp_config_set_string(LpConfig *lpconfig,const char *section, const char *key, const char *value);
+/**
+ * Sets a range config item
+ *
+ * @ingroup misc
+ */
+void lp_config_set_range(LpConfig *lpconfig, const char *section, const char *key, int min_value, int max_value);
 /**
  * Sets an integer config item
  *