diff options
| author | Ron Yorston <rmy@frippery.org> | 2015-07-19 23:05:20 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2015-07-19 23:05:20 +0200 |
| commit | d840c5d139cfa50fbe4f6f67c178b0edf0c690c8 (patch) | |
| tree | e75010ca3ce7769f53a6170ebe940f37c6a94dc1 /networking/udhcp/d6_dhcpc.c | |
| parent | 78cfa00154dca18a1326d2064121bf65cd081781 (diff) | |
| download | busybox-d840c5d139cfa50fbe4f6f67c178b0edf0c690c8.tar.gz | |
libbb: add a function to make a copy of a region of memory
Introduce a library routine to package the idiom:
p = xmalloc(b, n);
memcpy(p, b, n);
and use it where possible. The example in traceroute used xzalloc
but it didn't need to.
function old new delta
xmemdup - 32 +32
last_main 834 826 -8
make_device 2321 2311 -10
common_traceroute_main 3698 3685 -13
readtoken1 3182 3168 -14
procps_scan 1222 1206 -16
forkchild 655 638 -17
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/6 up/down: 32/-78) Total: -46 bytes
Signed-off-by: Ron Yorston <rmy@frippery.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'networking/udhcp/d6_dhcpc.c')
| -rw-r--r-- | networking/udhcp/d6_dhcpc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/networking/udhcp/d6_dhcpc.c b/networking/udhcp/d6_dhcpc.c index 044f04673..4e9b705b9 100644 --- a/networking/udhcp/d6_dhcpc.c +++ b/networking/udhcp/d6_dhcpc.c @@ -118,7 +118,7 @@ static void *d6_copy_option(uint8_t *option, uint8_t *option_end, unsigned code) uint8_t *opt = d6_find_option(option, option_end, code); if (!opt) return opt; - return memcpy(xmalloc(opt[3] + 4), opt, opt[3] + 4); + return xmemdup(opt, opt[3] + 4); } static void *d6_store_blob(void *dst, const void *src, unsigned len) |