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Fix possible uninitialized read on Windows

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This commit is contained in:
ISSOtm
2020-08-31 14:47:55 +02:00
parent 82469ac0fd
commit 138523570e
1 changed files with 3 additions and 3 deletions
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6
src/asm/lexer.c
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@@ -320,6 +320,7 @@ static void initState(struct LexerState *state)
# include <winbase.h>
# define MAP_FAILED NULL
# define mapFile(ptr, fd, path, size) do { \
(ptr) = MAP_FAILED; \
HANDLE file = CreateFileA(path, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, \
FILE_FLAG_POSIX_SEMANTICS | FILE_FLAG_RANDOM_ACCESS, NULL); \
HANDLE mappingObj; \
@@ -327,9 +328,8 @@ static void initState(struct LexerState *state)
if (file == INVALID_HANDLE_VALUE) \
break; \
mappingObj = CreateFileMappingA(file, NULL, PAGE_READONLY, 0, 0, NULL); \
(ptr) = mappingObj == INVALID_HANDLE_VALUE \
? NULL \
: MapViewOfFile(mappingObj, FILE_MAP_READ, 0, 0, 0); \
if (mappingObj != INVALID_HANDLE_VALUE) \
(ptr) = MapViewOfFile(mappingObj, FILE_MAP_READ, 0, 0, 0); \
CloseHandle(mappingObj); \
CloseHandle(file); \
} while (0)