1 files changed, 11 insertions, 0 deletions
diff --git a/src/hardware/utils.h b/src/hardware/utils.h
index 933c042..2a1a690 100644
--- a/src/hardware/utils.h
+++ b/src/hardware/utils.h
@@ -25,6 +25,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <errno.h>
+#include <stdarg.h>
 #include "globals.h"
 
 #define LONG_INT_LEN 21     /* 64 bit unsigned int can has 20 decimals + \0 */
@@ -109,5 +110,15 @@ char *trim(const char *str, const char *delims);
  */
 short explode(const char *str, const char *delims, char ***buffer, unsigned *buffer_size);
 
+/*
+ * Append strings to the first string parameter.
+ * @param str string where the rest of params will be appended. Can be NULL.
+ *      When appending, str will be reallocated to the correct size.
+ *      Last parameter must be NULL.
+ * @return pointer to the final string (same as str, if it wasn't NULL). In case
+ *      of any problem, NULL is returned.
+ */
+char *append_str(char *str, ...);
+
 
 #endif /* UTILS_H_ */