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Make Windows fcntl() and lseek() fixes (#668)

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* F_SETFD should always return 0 on success
* F_SETFL is not implemented on nt
* nt lseek, error with ESPIPE when attempting on socket
This commit is contained in:
Gavin Hayes 2022-11-02 02:14:14 -04:00 committed by GitHub
parent ef9776755e
commit da8f5009fd
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 4 additions and 3 deletions
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5
libc/calls/fcntl-nt.c
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@ -320,7 +320,7 @@ textwindows int sys_fcntl_nt(int fd, int cmd, uintptr_t arg) {
// O_DSYNC / O_RSYNC / O_SYNC maybe if we fsync() everything
// O_DIRECT | O_RANDOM | O_SEQUENTIAL | O_NDELAY possible but
// not worth it.
rc = einval();
rc = enosys();
} else if (cmd == F_GETFD) {
if (g_fds.p[fd].flags & O_CLOEXEC) {
rc = FD_CLOEXEC;
@ -330,11 +330,10 @@ textwindows int sys_fcntl_nt(int fd, int cmd, uintptr_t arg) {
} else if (cmd == F_SETFD) {
if (arg & FD_CLOEXEC) {
g_fds.p[fd].flags |= O_CLOEXEC;
rc = FD_CLOEXEC;
} else {
g_fds.p[fd].flags &= ~O_CLOEXEC;
rc = 0;
}
rc = 0;
} else if (cmd == F_SETLK || cmd == F_SETLKW || cmd == F_GETLK) {
pthread_mutex_lock(&g_locks.mu);
rc = sys_fcntl_nt_lock(g_fds.p + fd, fd, cmd, arg);

2
libc/calls/lseek-nt.c
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@ -34,6 +34,8 @@ textwindows int64_t sys_lseek_nt(int fd, int64_t offset, int whence) {
} else {
return espipe();
}
} else if (__isfdkind(fd, kFdSocket)) {
return espipe();
} else {
return ebadf();
}