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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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3
libc/calls/ioctl.c
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@ -106,6 +106,9 @@ static int ioctl_fionread(int fd, uint32_t *arg) {
int bytes = CountConsoleInputBytes();
*arg = MAX(0, bytes);
return 0;
} else if (g_fds.p[fd].kind == kFdDevNull) {
*arg = 1;
return 0;
} else if (GetFileType(handle) == kNtFileTypePipe) {
uint32_t avail;
if (PeekNamedPipe(handle, 0, 0, 0, &avail, 0)) {