dilim/systemd
1
0
Fork 0
mirror of https://github.com/systemd/systemd.git synced 2026-08-05 07:30:30 +00:00
Code Issues Packages Projects Releases Wiki Activity

memory-util: introduce erase_and_free() helper

Browse Source
This commit is contained in:
Lennart Poettering
2019-08-08 19:53:17 +02:00
parent 9933a47808
commit 282bde1066
1 changed files with 14 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
src/basic/memory-util.h
View File

@@ -80,14 +80,21 @@ static inline void* explicit_bzero_safe(void *p, size_t l) {
void *explicit_bzero_safe(void *p, size_t l);
#endif
static inline void erase_and_freep(void *p) {
void *ptr = *(void**) p;
static inline void* erase_and_free(void *p) {
size_t l;
if (ptr) {
size_t l = malloc_usable_size(ptr);
explicit_bzero_safe(ptr, l);
free(ptr);
}
if (!p)
return NULL;
l = malloc_usable_size(p);
explicit_bzero_safe(p, l);
free(p);
return NULL;
}
static inline void erase_and_freep(void *p) {
erase_and_free(*(void**) p);
}
/* Use with _cleanup_ to erase a single 'char' when leaving scope */