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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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8
libc/calls/openat-sysv.c
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@ -27,11 +27,9 @@
int sys_openat(int dirfd, const char *file, int flags, unsigned mode) {
static bool once, modernize;
int d, e, f;
/*
* RHEL5 doesn't support O_CLOEXEC. It's hard to test for this.
* Sometimes the system call succeeds and it just doesn't set the
* flag. Other times, it return -530 which makes no sense.
*/
// RHEL5 doesn't support O_CLOEXEC. It's hard to test for this.
// Sometimes the system call succeeds and it just doesn't set the
// flag. Other times, it return -530 which makes no sense.
if (!IsLinux() || !(flags & O_CLOEXEC) || modernize) {
d = __sys_openat(dirfd, file, flags, mode);
} else if (once) {