| /* |
| Plan 9 from User Space src/lib9/getenv.c |
| http://code.swtch.com/plan9port/src/tip/src/lib9/getenv.c |
| |
| Copyright 2001-2007 Russ Cox. All Rights Reserved. |
| |
| Permission is hereby granted, free of charge, to any person obtaining a copy |
| of this software and associated documentation files (the "Software"), to deal |
| in the Software without restriction, including without limitation the rights |
| to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| copies of the Software, and to permit persons to whom the Software is |
| furnished to do so, subject to the following conditions: |
| |
| The above copyright notice and this permission notice shall be included in |
| all copies or substantial portions of the Software. |
| |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| THE SOFTWARE. |
| */ |
| #include <u.h> |
| #define NOPLAN9DEFINES |
| #include <libc.h> |
| #include <sys/socket.h> |
| |
| /* |
| * We use socketpair to get a two-way pipe. |
| * The pipe still doesn't preserve message boundaries. |
| * Worse, it cannot be reopened via /dev/fd/NNN on Linux. |
| */ |
| int |
| p9pipe(int fd[2]) |
| { |
| return socketpair(AF_UNIX, SOCK_STREAM, 0, fd); |
| } |