util: add attr_as_bool

Author: bmx666

qdl.h

@@ -37,6 +37,7 @@ int sahara_run(struct qdl_device *qdl, char *img_arr[], bool single_image,
 void print_hex_dump(const char *prefix, const void *buf, size_t len);
 unsigned attr_as_unsigned(xmlNode *node, const char *attr, int *errors);
 const char *attr_as_string(xmlNode *node, const char *attr, int *errors);
+bool attr_as_bool(xmlNode *node, const char *attr, int *errors);
 
 extern bool qdl_debug;
 

util.c

@@ -29,6 +29,7 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 #include <ctype.h>
+#include <stdbool.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <string.h>
@@ -110,3 +111,19 @@ const char *attr_as_string(xmlNode *node, const char *attr, int *errors)
 
 	return strdup((char*)value);
 }
+
+bool attr_as_bool(xmlNode *node, const char *attr, int *errors)
+{
+	xmlChar *value;
+
+	if (!xmlHasProp(node, (xmlChar*)attr))
+		return false;
+
+	value = xmlGetProp(node, (xmlChar*)attr);
+	if (!value) {
+		(*errors)++;
+		return false;
+	}
+
+	return xmlStrcmp(value, (xmlChar*)"true") == 0;
+}