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authorRon Yorston2015-07-19 23:05:20 +0200
committerDenys Vlasenko2015-07-19 23:05:20 +0200
commitd840c5d139cfa50fbe4f6f67c178b0edf0c690c8 (patch)
treee75010ca3ce7769f53a6170ebe940f37c6a94dc1 /include
parent78cfa00154dca18a1326d2064121bf65cd081781 (diff)
downloadbusybox-d840c5d139cfa50fbe4f6f67c178b0edf0c690c8.zip
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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 'include')
-rw-r--r--include/libbb.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/libbb.h b/include/libbb.h
index f0ac1f5..54d01b7 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -673,6 +673,7 @@ uint16_t inet_cksum(uint16_t *addr, int len) FAST_FUNC;
char *xstrdup(const char *s) FAST_FUNC RETURNS_MALLOC;
char *xstrndup(const char *s, int n) FAST_FUNC RETURNS_MALLOC;
+void *xmemdup(const void *s, int n) FAST_FUNC RETURNS_MALLOC;
void overlapping_strcpy(char *dst, const char *src) FAST_FUNC;
char *safe_strncpy(char *dst, const char *src, size_t size) FAST_FUNC;
char *strncpy_IFNAMSIZ(char *dst, const char *src) FAST_FUNC;