/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│ │vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│ ╞══════════════════════════════════════════════════════════════════════════════╡ │ Copyright 2020 Justine Alexandra Roberts Tunney │ │ │ │ Permission to use, copy, modify, and/or distribute this software for │ │ any purpose with or without fee is hereby granted, provided that the │ │ above copyright notice and this permission notice appear in all copies. │ │ │ │ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │ │ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │ │ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │ │ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │ │ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │ │ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │ │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │ │ PERFORMANCE OF THIS SOFTWARE. │ ╚─────────────────────────────────────────────────────────────────────────────*/ #include "libc/calls/internal.h" #include "libc/intrin/strace.internal.h" #include "libc/dce.h" #include "libc/intrin/asan.internal.h" #include "libc/sock/internal.h" #include "libc/sock/sock.h" #include "libc/sock/struct/sockaddr.internal.h" #include "libc/sock/syscall_fd.internal.h" #include "libc/sysv/errfuns.h" /** * Returns details about network interface kernel granted socket. * @return 0 on success or -1 w/ errno * @see getpeername() */ int getsockname(int fd, void *out_addr, uint32_t *out_addrsize) { int rc; if (!out_addrsize || !out_addrsize || (IsAsan() && (!__asan_is_valid(out_addrsize, 4) || !__asan_is_valid(out_addr, *out_addrsize)))) { rc = efault(); } else if (!IsWindows()) { rc = sys_getsockname(fd, out_addr, out_addrsize); } else if (__isfdkind(fd, kFdSocket)) { rc = sys_getsockname_nt(&g_fds.p[fd], out_addr, out_addrsize); } else { rc = ebadf(); } STRACE("getsockname(%d, [%s]) -> %d% lm", fd, DescribeSockaddr(out_addr, out_addrsize ? *out_addrsize : 0), rc); return rc; }