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Rewrite special file handling on Windows

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This change gets GNU grep working. What caused it to not work, is it
wouldn't write to an output file descriptor when its dev/ino equaled
/dev/null's. So now we invent special dev/ino values for these files
This commit is contained in:
Justine Tunney 2023-10-14 01:06:00 -07:00
parent aca2261cda
commit 2db2f40a98
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GPG key ID: BE714B4575D6E328
53 changed files with 485 additions and 299 deletions
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2
libc/intrin/reopenfile.c
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@ -28,14 +28,12 @@ __msabi extern typeof(ReOpenFile) *const __imp_ReOpenFile;
* Reopens file on the New Technology.
*
* @return handle, or -1 on failure
* @note this wrapper takes care of ABI, STRACE(), and __winerr()
*/
int64_t ReOpenFile(int64_t hOriginalFile, uint32_t dwDesiredAccess,
uint32_t dwShareMode, uint32_t dwFlagsAndAttributes) {
int64_t hHandle;
hHandle = __imp_ReOpenFile(hOriginalFile, dwDesiredAccess, dwShareMode,
dwFlagsAndAttributes);
if (hHandle == -1) __winerr();
NTTRACE("ReOpenFile(%ld, %s, %s, %s) → %ld% m", hOriginalFile,
DescribeNtFileAccessFlags(dwDesiredAccess),
DescribeNtFileShareFlags(dwShareMode),