diff options
| author | Lennart Poettering <lennart@poettering.net> | 2018-10-15 12:05:54 +0200 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2018-10-15 19:35:00 +0200 |
| commit | 242c41b850af8ebc0c7a0cd44be057e50b5a027a (patch) | |
| tree | 8cce6c4a26f507d1f1b66da15c267d92017b97a7 /src/basic/alloc-util.h | |
| parent | Merge pull request #10373 from poettering/systemd-io (diff) | |
| download | systemd-242c41b850af8ebc0c7a0cd44be057e50b5a027a.tar.xz systemd-242c41b850af8ebc0c7a0cd44be057e50b5a027a.zip | |
alloc-util: add alloca() counterparts for memdup() and memdup_suffix0()
Diffstat (limited to '')
| -rw-r--r-- | src/basic/alloc-util.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/basic/alloc-util.h b/src/basic/alloc-util.h index ebe42889ea..2a6deb12ca 100644 --- a/src/basic/alloc-util.h +++ b/src/basic/alloc-util.h @@ -46,6 +46,21 @@ static inline void *mfree(void *memory) { void* memdup(const void *p, size_t l) _alloc_(2); void* memdup_suffix0(const void *p, size_t l) _alloc_(2); +#define memdupa(p, l) \ + ({ \ + void *_q_; \ + _q_ = alloca(l); \ + memcpy(_q_, p, l); \ + }) + +#define memdupa_suffix0(p, l) \ + ({ \ + void *_q_; \ + _q_ = alloca(l + 1); \ + ((uint8_t*) _q_)[l] = 0; \ + memcpy(_q_, p, l); \ + }) + static inline void freep(void *p) { free(*(void**) p); } |