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- Polyfill pselect() on Windows
- Add -O NOFILE flag to pledge.com
- Polyfill ppoll() on NetBSD, XNU, and Windows
- Support negative numbers and errno in sizetol()
- Add .RSS, .NOFILE, and .MAXCORE to Landlock Make
- Fix issue with .PLEDGE preventing touching of output files
- Add __watch() function (like ftrace) for logging memory changes
This commit is contained in:
Justine Tunney 2022-08-15 15:18:37 -07:00
parent d3b599a796
commit f0701d2a24
35 changed files with 635 additions and 340 deletions
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14
libc/sock/select.c
View file

@ -19,9 +19,11 @@
#include "libc/calls/strace.internal.h"
#include "libc/calls/struct/timeval.h"
#include "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/sock/internal.h"
#include "libc/sock/select.h"
#include "libc/sysv/errfuns.h"
/**
* Does what poll() does except with bitset API.
@ -35,10 +37,18 @@ int select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
int rc;
POLLTRACE("select(%d, %p, %p, %p, %s) → ...", nfds, readfds, writefds,
exceptfds, DescribeTimeval(0, timeout));
if (!IsWindows()) {
if (nfds < 0) {
rc = einval();
} else if (IsAsan() &&
((readfds && !__asan_is_valid(readfds, FD_SIZE(nfds))) ||
(writefds && !__asan_is_valid(writefds, FD_SIZE(nfds))) ||
(exceptfds && !__asan_is_valid(exceptfds, FD_SIZE(nfds))) ||
(timeout && !__asan_is_valid(timeout, sizeof(*timeout))))) {
rc = efault();
} else if (!IsWindows()) {
rc = sys_select(nfds, readfds, writefds, exceptfds, timeout);
} else {
rc = sys_select_nt(nfds, readfds, writefds, exceptfds, timeout);
rc = sys_select_nt(nfds, readfds, writefds, exceptfds, timeout, 0);
}
POLLTRACE("select(%d, %p, %p, %p, [%s]) → %d% m", nfds, readfds, writefds,
exceptfds, DescribeTimeval(rc, timeout), rc);