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Add socketpair (#122)

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fabriziobertocci 2021-03-17 01:05:59 -04:00 • committed by GitHub
parent 6388ef21f8
commit ca88ce5026
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7 changed files with 238 additions and 4 deletions
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libc/sock/socketpair-nt.c Normal file
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/*-*- 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/errno.h"
#include "libc/mem/mem.h"
#include "libc/sock/internal.h"
#include "libc/sock/yoink.inc"
#include "libc/sysv/consts/fio.h"
#include "libc/sysv/consts/o.h"
#include "libc/sysv/consts/sock.h"
#include "libc/sysv/consts/af.h"
#include "libc/alg/reverse.internal.h"
#include "libc/nt/createfile.h"
#include "libc/nt/enum/accessmask.h"
#include "libc/nt/enum/creationdisposition.h"
#include "libc/nt/enum/filesharemode.h"
#include "libc/nt/ipc.h"
#include "libc/nt/process.h"
#include "libc/nt/runtime.h"
// {{{ sys_socketpair_nt
int sys_socketpair_nt(int family, int type, int proto, int sv[2]) {
int64_t hpipe, h1, h2;
int reader, writer;
char16_t pipename[64];
uint32_t mode;
// Supports only AF_UNIX
if (family != AF_UNIX) {
errno = EAFNOSUPPORT;
return -1;
}
mode = kNtPipeWait;
if (type == SOCK_STREAM) {
mode |= kNtPipeReadmodeByte | kNtPipeTypeByte;
} else if ((type == SOCK_DGRAM) || (type == SOCK_SEQPACKET)) {
mode |= kNtPipeReadmodeMessage | kNtPipeTypeMessage;
} else {
errno = EOPNOTSUPP;
return -1;
}
CreatePipeName(pipename);
if ((reader = __reservefd()) == -1) return -1;
if ((writer = __reservefd()) == -1) {
__releasefd(reader);
return -1;
}
if ((hpipe = CreateNamedPipe(pipename,
kNtPipeAccessDuplex,
mode,
1,
65536,
65536,
0,
&kNtIsInheritable)) == -1) {
__winerr();
__releasefd(writer);
__releasefd(reader);
return -1;
}
h1 = CreateFile(pipename,
kNtGenericWrite | kNtGenericRead,
0, // Not shared
&kNtIsInheritable,
kNtOpenExisting, 0, 0);
if (h1 == -1) {
CloseHandle(hpipe);
__winerr();
__releasefd(writer);
__releasefd(reader);
return -1;
}
g_fds.p[reader].kind = kFdFile;
g_fds.p[reader].flags = 0; // TODO
g_fds.p[reader].handle = hpipe;
g_fds.p[writer].kind = kFdFile;
g_fds.p[writer].flags = 0; // TODO
g_fds.p[writer].handle = h1;
sv[0] = reader;
sv[1] = writer;
return 0;
}
// }}}