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Improve system call wrappers

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This change improves copy_file_range(), sendfile(), splice(), openpty(),
closefrom(), close_range(), fadvise() and posix_fadvise() in addition to
writing tests that confirm things like errno and seeking behavior across
platforms. We now less aggressively polyfill behavior with some of these
functions when the platform support isn't available. Please see:

https://justine.lol/cosmopolitan/functions.html
This commit is contained in:
Justine Tunney 2022-09-19 15:01:48 -07:00
parent 224c12f54d
commit c7a8cd21e9
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GPG key ID: BE714B4575D6E328
89 changed files with 1151 additions and 414 deletions
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19
libc/calls/ioctl_tcsets.c
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@ -29,7 +29,7 @@
#include "libc/sysv/consts/termios.h"
#include "libc/sysv/errfuns.h"
void __on_ioctl_tcsets(void);
void __on_ioctl_tcsets(int);
int ioctl_tcsets_nt(int, uint64_t, const struct termios *);
static int ioctl_tcsets_metal(int fd, uint64_t request,
@ -37,19 +37,6 @@ static int ioctl_tcsets_metal(int fd, uint64_t request,
return 0;
}
static inline void *__termios2host(union metatermios *mt,
const struct termios *lt) {
if (!IsXnu() && !IsFreebsd() && !IsOpenbsd() && !IsNetbsd()) {
return (/*unconst*/ void *)lt;
} else if (IsXnu()) {
COPY_TERMIOS(&mt->xnu, lt);
return &mt->xnu;
} else {
COPY_TERMIOS(&mt->bsd, lt);
return &mt->bsd;
}
}
static int ioctl_tcsets_sysv(int fd, uint64_t request,
const struct termios *tio) {
union metatermios mt;
@ -72,9 +59,9 @@ int ioctl_tcsets(int fd, uint64_t request, ...) {
va_start(va, request);
tio = va_arg(va, const struct termios *);
va_end(va);
if (_weaken(__on_ioctl_tcsets)) {
if (0 <= fd && fd <= 2 && _weaken(__on_ioctl_tcsets)) {
if (!once) {
_weaken(__on_ioctl_tcsets)();
_weaken(__on_ioctl_tcsets)(fd);
once = true;
}
}