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patch 8.1.1825: allocating more memory than needed for extended structs

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Problem:    Allocating more memory than needed for extended structs.
Solution:   Use offsetof() instead of sizeof(). (Dominique Pelle,
            closes #4785)
This commit is contained in:
Bram Moolenaar
2019-08-07 21:42:24 +02:00
parent 5bcc5a1ff9
commit b59e735772
2 changed files with 4 additions and 2 deletions
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4
src/dict.c
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@@ -210,7 +210,7 @@ dictitem_alloc(char_u *key)
{
dictitem_T *di;
di = alloc(sizeof(dictitem_T) + STRLEN(key));
di = alloc(offsetof(dictitem_T, di_key) + STRLEN(key) + 1);
if (di != NULL)
{
STRCPY(di->di_key, key);
@@ -228,7 +228,7 @@ dictitem_copy(dictitem_T *org)
{
dictitem_T *di;
di = alloc(sizeof(dictitem_T) + STRLEN(org->di_key));
di = alloc(offsetof(dictitem_T, di_key) + STRLEN(org->di_key) + 1);
if (di != NULL)
{
STRCPY(di->di_key, org->di_key);