diff options
| author | Ron Yorston | 2015-07-19 23:05:20 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2015-07-19 23:05:20 +0200 |
| commit | d840c5d139cfa50fbe4f6f67c178b0edf0c690c8 (patch) | |
| tree | e75010ca3ce7769f53a6170ebe940f37c6a94dc1 /util-linux/mdev.c | |
| parent | 78cfa00154dca18a1326d2064121bf65cd081781 (diff) | |
| download | busybox-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 'util-linux/mdev.c')
| -rw-r--r-- | util-linux/mdev.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/util-linux/mdev.c b/util-linux/mdev.c index ca4b915..662e8ab 100644 --- a/util-linux/mdev.c +++ b/util-linux/mdev.c @@ -471,7 +471,7 @@ static const struct rule *next_rule(void) if (G.parser) { parse_next_rule(); if (G.rule_vec) { /* mdev -s */ - rule = memcpy(xmalloc(sizeof(G.cur_rule)), &G.cur_rule, sizeof(G.cur_rule)); + rule = xmemdup(&G.cur_rule, sizeof(G.cur_rule)); G.rule_vec = xrealloc_vector(G.rule_vec, 4, G.rule_idx); G.rule_vec[G.rule_idx++] = rule; dbg3("> G.rule_vec[G.rule_idx:%d]=%p", G.rule_idx, G.rule_vec[G.rule_idx]); |