mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-05-27 15:52:28 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Rewrite special file handling on Windows

Browse source 
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
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
53 changed files with 485 additions and 299 deletions
Download patch file Download diff file Expand all files Collapse all files

4
libc/calls/readwrite-nt.c
View file

@ -83,7 +83,9 @@ sys_readwrite_nt(int fd, void *data, size_t size, ssize_t offset,
// similar to the lseek() system call, they too raise ESPIPE when
// operating on a non-seekable file.
bool pwriting = offset != -1;
bool seekable = f->kind == kFdFile && GetFileType(handle) == kNtFileTypeDisk;
bool seekable =
(f->kind == kFdFile && GetFileType(handle) == kNtFileTypeDisk) ||
f->kind == kFdDevNull;
if (pwriting && !seekable) {
return espipe();
}