From 54f55d79d92986477c08791fe8cbdef32e3eae6f Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Mon, 25 Nov 2013 15:37:33 +0100 Subject: string: Add (x)memdup It's a common task to duplicate some memory. Add (x)memdup functions. Signed-off-by: Sascha Hauer --- lib/string.c | 14 ++++++++++++++ lib/xfuncs.c | 10 ++++++++++ 2 files changed, 24 insertions(+) (limited to 'lib') diff --git a/lib/string.c b/lib/string.c index eeec137c9e..ceced7f48e 100644 --- a/lib/string.c +++ b/lib/string.c @@ -725,3 +725,17 @@ void *memchr_inv(const void *start, int c, size_t bytes) return check_bytes8(start, value, bytes % 8); } EXPORT_SYMBOL(memchr_inv); + +void *memdup(const void *orig, size_t size) +{ + void *buf; + + buf = malloc(size); + if (!buf) + return NULL; + + memcpy(buf, orig, size); + + return buf; +} +EXPORT_SYMBOL(memdup); diff --git a/lib/xfuncs.c b/lib/xfuncs.c index db85720195..86d0013787 100644 --- a/lib/xfuncs.c +++ b/lib/xfuncs.c @@ -75,3 +75,13 @@ void* xmemalign(size_t alignment, size_t bytes) return p; } EXPORT_SYMBOL(xmemalign); + +void *xmemdup(const void *orig, size_t size) +{ + void *buf = xmalloc(size); + + memcpy(buf, orig, size); + + return buf; +} +EXPORT_SYMBOL(xmemdup); -- cgit v1.2.3