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expat cross-platform fixes

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This commit is contained in:
Guenter Obiltschnig
2016-07-20 14:25:10 +02:00
parent 1899ef2d79
commit da66f2863a
2 changed files with 15 additions and 6 deletions
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19
XML/src/xmlparse.cpp
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@@ -7,12 +7,19 @@
#include <assert.h>
#include <limits.h> /* UINT_MAX */
#ifdef _WIN32
#define getpid GetCurrentProcessId
#define EXPAT_POCO 1
#if defined(EXPAT_POCO)
#include "Poco/Process.h"
#include "Poco/Timestamp.h"
#define platform_getpid Poco::Process::id
#elif defined(_WIN32)
#define platform_getpid GetCurrentProcessId
#else
#include <sys/time.h> /* gettimeofday() */
#include <sys/types.h> /* getpid() */
#include <unistd.h> /* getpid() */
#define platform_getpid getpid
#endif
#define XML_BUILDING_EXPAT 1
@@ -703,9 +710,11 @@ static const XML_Char implicitContext[] = {
};
static unsigned long
gather_time_entropy(void)
platform_gather_time_entropy(void)
{
#ifdef WIN32
#if defined(EXPAT_POCO)
return static_cast<unsigned long>(Poco::Timestamp().utcTime());
#elif defined(_WIN32)
FILETIME ft;
GetSystemTimeAsFileTime(&ft); /* never fails */
return ft.dwHighDateTime ^ ft.dwLowDateTime;
@@ -727,7 +736,7 @@ generate_hash_secret_salt(XML_Parser parser)
/* Process ID is 0 bits entropy if attacker has local access
* XML_Parser address is few bits of entropy if attacker has local access */
const unsigned long entropy =
gather_time_entropy() ^ getpid() ^ (unsigned long)parser;
platform_gather_time_entropy() ^ platform_getpid() ^ (unsigned long)parser;
/* Factors are 2^31-1 and 2^61-1 (Mersenne primes M31 and M61) */
if (sizeof(unsigned long) == 4) {