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authorRon Yorston2015-07-19 23:05:20 +0200
committerDenys Vlasenko2015-07-19 23:05:20 +0200
commitd840c5d139cfa50fbe4f6f67c178b0edf0c690c8 (patch)
treee75010ca3ce7769f53a6170ebe940f37c6a94dc1 /networking/udhcp/d6_dhcpc.c
parent78cfa00154dca18a1326d2064121bf65cd081781 (diff)
downloadbusybox-d840c5d139cfa50fbe4f6f67c178b0edf0c690c8.zip
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.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/networking/udhcp/d6_dhcpc.c b/networking/udhcp/d6_dhcpc.c
index 044f046..4e9b705 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)