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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2013-05-22 06:19:03 +0000
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2013-05-22 06:19:03 +0000
commita815b56d84e1876c5f6e5fc9f4b3bc46a1a3cfb3 (patch)
treeb5e4c4984ab8ec16857a927e71ddb33cc406fb37 /win32
parent38302ca7195981b7f4994526378d9c90320d350f (diff)
win32.c: check error of SetFilePointer
* win32/win32.c (setup_overlapped): check the error code in addition to the result of SetFilePointer() to determine if an error occurred, because INVALID_SET_FILE_POINTER is a valid value. [ruby-core:55098] [Bug #8431] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40888 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'win32')
-rw-r--r--win32/win32.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/win32/win32.c b/win32/win32.c
index 74d13960bc..b7eb4c62f2 100644
--- a/win32/win32.c
+++ b/win32/win32.c
@@ -6028,8 +6028,11 @@ setup_overlapped(OVERLAPPED *ol, int fd)
#define INVALID_SET_FILE_POINTER ((DWORD)-1)
#endif
if (low == INVALID_SET_FILE_POINTER) {
- errno = map_errno(GetLastError());
- return -1;
+ DWORD err = GetLastError();
+ if (err != NO_ERROR) {
+ errno = map_errno(err);
+ return -1;
+ }
}
ol->Offset = low;
ol->OffsetHigh = high;