data: Fix deserialization

turns out you need to pass pointers to functions that require pointers,
who knew?

1 files changed, 17 insertions, 0 deletions

diff --git a/src/util.c b/src/util.c
index 328a9cc..1f86b03 100644
--- a/src/util.c
+++ b/src/util.c
@@ -36,3 +36,20 @@ char* trimwhitespace(char* str) {
 
     return str;
 }
+
+/*
+ *      Remove given section from string. Negative len means remove
+ *      everything up to the end.
+ *
+ *      based on SO answer https://stackoverflow.com/a/20346241
+ */
+int cut_str(char *str, int begin, int len)
+{
+    int l = strlen(str);
+
+    if (len < 0) len = l - begin;
+    if (begin + len > l) len = l - begin;
+    memmove(str + begin, str + begin + len, l - len + 1);
+
+    return len;
+}