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Fix some more socket bugs

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- The functions that return a sockaddr now do so the same way the Linux
  Kernel does across platforms, e.g. getpeername(), accept4()

- Socket system calls on Windows will now only check for interrupts when
  a blocking operation needs to be performed.

- Write tests for recvfrom() system call
This commit is contained in:
Justine Tunney 2023-07-23 16:31:10 -07:00
parent ac92f25296
commit 0ba3199915
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GPG key ID: BE714B4575D6E328
49 changed files with 347 additions and 352 deletions
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24
libc/sock/accept4.c
View file

@ -44,18 +44,24 @@
int accept4(int fd, struct sockaddr *out_addr, uint32_t *inout_addrsize,
int flags) {
int rc;
char addrbuf[72];
struct sockaddr_storage ss = {0};
BEGIN_CANCELLATION_POINT;
if (!out_addr || !inout_addrsize ||
(IsAsan() && !__asan_is_valid(out_addr, *inout_addrsize))) {
rc = efault();
} else if (!IsWindows()) {
rc = sys_accept4(fd, out_addr, inout_addrsize, flags);
} else if (__isfdkind(fd, kFdSocket)) {
rc = sys_accept_nt(&g_fds.p[fd], out_addr, inout_addrsize, flags);
if (IsWindows()) {
if (__isfdkind(fd, kFdSocket)) {
rc = sys_accept_nt(g_fds.p + fd, &ss, flags);
} else {
rc = ebadf();
}
} else {
rc = ebadf();
rc = sys_accept4(fd, &ss, flags);
}
if (rc != -1) {
if (IsBsd()) {
__convert_bsd_to_sockaddr(&ss);
}
__write_sockaddr(&ss, out_addr, inout_addrsize);
}
END_CANCELLATION_POINT;