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Handle missing stdio handles on Windows

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This commit is contained in:
Justine Tunney 2022-08-22 17:03:11 -07:00
parent 2227cefa5d
commit 58d22c7c3d
3 changed files with 16 additions and 235 deletions
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22
libc/intrin/g_fds.c
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@ -16,10 +16,10 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/pushpop.h"
#include "libc/calls/internal.h"
#include "libc/calls/strace.internal.h"
#include "libc/intrin/pthread.h"
#include "libc/intrin/pushpop.h"
#include "libc/intrin/spinlock.h"
#include "libc/nt/runtime.h"
#include "libc/sysv/consts/o.h"
@ -39,6 +39,15 @@ void(__fds_unlock)(void) {
pthread_mutex_unlock(&__fds_lock_obj);
}
static textwindows dontinline void SetupWinStd(struct Fds *fds, int i, int x) {
int64_t h;
h = GetStdHandle(x);
if (!h || h == -1) return;
fds->__init_p[i].kind = pushpop(kFdFile);
fds->__init_p[i].handle = h;
fds->f = i + 1;
}
textstartup void InitializeFileDescriptors(void) {
struct Fds *fds;
fds = VEIL("r", &g_fds);
@ -54,15 +63,10 @@ textstartup void InitializeFileDescriptors(void) {
fds->__init_p[1].handle = VEIL("r", 0x3F8ull);
fds->__init_p[2].handle = VEIL("r", 0x3F8ull);
} else if (IsWindows()) {
pushmov(&fds->f, 3ull);
fds->__init_p[0].kind = pushpop(kFdFile);
fds->__init_p[1].kind = pushpop(kFdFile);
fds->__init_p[2].kind = pushpop(kFdFile);
fds->__init_p[0].handle = GetStdHandle(pushpop(kNtStdInputHandle));
fds->__init_p[1].handle = GetStdHandle(pushpop(kNtStdOutputHandle));
fds->__init_p[2].handle = GetStdHandle(pushpop(kNtStdErrorHandle));
SetupWinStd(fds, 0, kNtStdInputHandle);
SetupWinStd(fds, 1, kNtStdOutputHandle);
SetupWinStd(fds, 2, kNtStdErrorHandle);
}
fds->__init_p[0].flags = O_RDONLY;
fds->__init_p[1].flags = O_WRONLY | O_APPEND;
fds->__init_p[2].flags = O_WRONLY | O_APPEND;
}