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Merge "fix warning: Null pointer argument in call to memory comparison function"

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am: ce07b6fa4f

Change-Id: Ida2150c0640ff30fc694c6a84c3777eaff906a7c
This commit is contained in:
Yunlian Jiang 2017-02-09 17:23:36 +00:00 • committed by android-build-merger
commit 90cc4fd6a4
1 changed files with 4 additions and 2 deletions
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6
libsysutils/src/NetlinkEvent.cpp
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@ -561,10 +561,12 @@ bool NetlinkEvent::parseBinaryNetlinkMessage(char *buffer, int size) {
static const char*
has_prefix(const char* str, const char* end, const char* prefix, size_t prefixlen)
{
if ((end-str) >= (ptrdiff_t)prefixlen && !memcmp(str, prefix, prefixlen))
if ((end - str) >= (ptrdiff_t)prefixlen &&
(prefixlen == 0 || !memcmp(str, prefix, prefixlen))) {
return str + prefixlen;
else
} else {
return NULL;
}
}
/* Same as strlen(x) for constant string literals ONLY */