#941 Add og_json_parse_string_copy(...) function

This function provides an easy way to copy the content of a json string
into a regular C string.

2 files changed, 16 insertions, 0 deletions

diff --git a/src/json.c b/src/json.c
index c9c2078..239f601 100644
--- a/src/json.c
+++ b/src/json.c
@@ -18,6 +18,21 @@ int og_json_parse_string(json_t *element, const char **str)
 	return 0;
 }
 
+int og_json_parse_string_copy(json_t *element, char *str, size_t size)
+{
+	const char *reference_str;
+	int err = 0;
+
+	err = og_json_parse_string(element, &reference_str);
+	if (err != 0)
+		return err;
+
+	err = snprintf(str, size, "%s", reference_str);
+	if (err >= size)
+		return -1;
+	return 0;
+}
+
 int og_json_parse_uint64(json_t *element, uint64_t *integer)
 {
 	if (json_typeof(element) != JSON_INTEGER)
diff --git a/src/json.h b/src/json.h
index cf78d46..df7964d 100644
--- a/src/json.h
+++ b/src/json.h
@@ -5,6 +5,7 @@
 #include "schedule.h"
 
 int og_json_parse_string(json_t *element, const char **str);
+int og_json_parse_string_copy(json_t *element, char *str, size_t size);
 int og_json_parse_uint64(json_t *element, uint64_t *integer);
 int og_json_parse_uint(json_t *element, uint32_t *integer);
 int og_json_parse_bool(json_t *element, bool *value);