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cryptlib.c: allow application to override OPENSSL_isservice.

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PR: 2194
This commit is contained in:
Andy Polyakov 2010-03-29 10:06:01 +00:00
parent 97a6a01f0f
commit 471d0eb397
1 changed files with 12 additions and 0 deletions
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12
crypto/cryptlib.c
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@ -762,6 +762,18 @@ int OPENSSL_isservice(void)
{ HWINSTA h;
DWORD len;
WCHAR *name;
static union { void *p; int (*f)(void); } _OPENSSL_isservice = { NULL };
if (_OPENSSL_isservice.p == NULL) {
HANDLE h = GetModuleHandle(NULL);
if (h != NULL)
_OPENSSL_isservice.p = GetProcAddress(h,"_OPENSSL_isservice");
if (_OPENSSL_isservice.p == NULL)
_OPENSSL_isservice.p = (void *)-1;
}
if (_OPENSSL_isservice.p != (void *)-1)
return (*_OPENSSL_isservice.f)();
(void)GetDesktopWindow(); /* return value is ignored */