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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/calls/pwrite.c
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@ -65,7 +65,7 @@ ssize_t pwrite(int fd, const void *buf, size_t size, int64_t offset) {
rc = sys_pwrite(fd, buf, size, offset, offset);
} else if (__isfdkind(fd, kFdSocket)) {
rc = espipe();
} else if (__isfdkind(fd, kFdFile)) {
} else if (__isfdkind(fd, kFdFile) || __isfdkind(fd, kFdDevNull)) {
rc = sys_write_nt(fd, (struct iovec[]){{(void *)buf, size}}, 1, offset);
} else {
return ebadf();