diff options
| author |  Neeraj Singh <neerajsi@microsoft.com> | 2022-03-10 22:43:19 +0000 |
|---|---|---|
| committer |  Junio C Hamano <gitster@pobox.com> | 2022-03-10 15:10:22 -0800 |
| commit | 19d3f228c8df7e946278c96fb52acf1cea0f6a7a (patch) | |
| tree | 2a4ff4edc2d7862dcd7c363f82adaf1e1bc3fc76 | |
| parent | The ninth batch (diff) | |
| download | tgif-19d3f228c8df7e946278c96fb52acf1cea0f6a7a.tar.xz | |
wrapper: make inclusion of Windows csprng header tightly scoped
Including NTSecAPI.h in git-compat-util.h causes build errors in any
other file that includes winternl.h. NTSecAPI.h was included in order to
get access to the RtlGenRandom cryptographically secure PRNG. This
change scopes the inclusion of ntsecapi.h to wrapper.c, which is the only
place that it's actually needed.
The build breakage is due to the definition of UNICODE_STRING in
NtSecApi.h:
#ifndef _NTDEF_
typedef LSA_UNICODE_STRING UNICODE_STRING, *PUNICODE_STRING;
typedef LSA_STRING STRING, *PSTRING ;
#endif
LsaLookup.h:
typedef struct _LSA_UNICODE_STRING {
USHORT Length;
USHORT MaximumLength;
#ifdef MIDL_PASS
[size_is(MaximumLength/2), length_is(Length/2)]
#endif // MIDL_PASS
PWSTR Buffer;
} LSA_UNICODE_STRING, *PLSA_UNICODE_STRING;
winternl.h also defines UNICODE_STRING:
typedef struct _UNICODE_STRING {
USHORT Length;
USHORT MaximumLength;
PWSTR Buffer;
} UNICODE_STRING;
typedef UNICODE_STRING *PUNICODE_STRING;
Both definitions have equivalent layouts. Apparently these internal
Windows headers aren't designed to be included together. This is
an oversight in the headers and does not represent an incompatibility
between the APIs.
Signed-off-by: Neeraj Singh <neerajsi@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
| -rw-r--r-- | compat/winansi.c | 5 | ||||
| -rw-r--r-- | git-compat-util.h | 6 | ||||
| -rw-r--r-- | wrapper.c | 7 |
3 files changed, 7 insertions, 11 deletions
diff --git a/compat/winansi.c b/compat/winansi.c index 936a80a5f0..3abe8dd5a2 100644 --- a/compat/winansi.c +++ b/compat/winansi.c @@ -4,11 +4,6 @@ #undef NOGDI -/* - * Including the appropriate header file for RtlGenRandom causes MSVC to see a - * redefinition of types in an incompatible way when including headers below. - */ -#undef HAVE_RTLGENRANDOM #include "../git-compat-util.h" #include <wingdi.h> #include <winreg.h> diff --git a/git-compat-util.h b/git-compat-util.h index 876907b9df..d210cff058 100644 --- a/git-compat-util.h +++ b/git-compat-util.h @@ -197,12 +197,6 @@ #endif #include <windows.h> #define GIT_WINDOWS_NATIVE -#ifdef HAVE_RTLGENRANDOM -/* This is required to get access to RtlGenRandom. */ -#define SystemFunction036 NTAPI SystemFunction036 -#include <NTSecAPI.h> -#undef SystemFunction036 -#endif #endif #include <unistd.h> @@ -4,6 +4,13 @@ #include "cache.h" #include "config.h" +#ifdef HAVE_RTLGENRANDOM +/* This is required to get access to RtlGenRandom. */ +#define SystemFunction036 NTAPI SystemFunction036 +#include <NTSecAPI.h> +#undef SystemFunction036 +#endif + static int memory_limit_check(size_t size, int gentle) { static size_t limit = 0; |