patch 8.1.1827: allocating more memory than needed for extended structs
Problem: Allocating more memory than needed for extended structs.
Solution: Use offsetof() instead of sizeof(). (Dominique Pelle,
closes #4786)
diff --git a/src/textprop.c b/src/textprop.c
index f219b92..a976414 100644
--- a/src/textprop.c
+++ b/src/textprop.c
@@ -695,7 +695,7 @@
semsg(_("E969: Property type %s already defined"), name);
return;
}
- prop = alloc_clear(sizeof(proptype_T) + STRLEN(name));
+ prop = alloc_clear(offsetof(proptype_T, pt_name) + STRLEN(name) + 1);
if (prop == NULL)
return;
STRCPY(prop->pt_name, name);