| 1 | /*
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| 2 | Unix SMB/CIFS implementation.
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| 3 | Samba utility functions
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| 4 | Copyright (C) Andrew Tridgell 1992-1998
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| 5 | Copyright (C) Tim Potter 2000-2001
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| 6 |
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| 7 | This program is free software; you can redistribute it and/or modify
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| 8 | it under the terms of the GNU General Public License as published by
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| 9 | the Free Software Foundation; either version 3 of the License, or
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| 10 | (at your option) any later version.
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| 11 |
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| 12 | This program is distributed in the hope that it will be useful,
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| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | GNU General Public License for more details.
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| 16 |
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| 17 | You should have received a copy of the GNU General Public License
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| 18 | along with this program. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 |
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| 21 | #include "includes.h"
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| 22 |
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| 23 | /*******************************************************************
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| 24 | this is like socketpair but uses tcp. It is used by the Samba
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| 25 | regression test code
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| 26 | The function guarantees that nobody else can attach to the socket,
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| 27 | or if they do that this function fails and the socket gets closed
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| 28 | returns 0 on success, -1 on failure
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| 29 | the resulting file descriptors are symmetrical
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| 30 | ******************************************************************/
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| 31 | static int socketpair_tcp(int fd[2])
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| 32 | {
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| 33 | int listener;
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| 34 | struct sockaddr_in sock;
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| 35 | struct sockaddr_in sock2;
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| 36 | socklen_t socklen = sizeof(sock);
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| 37 | int connect_done = 0;
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| 38 |
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| 39 | fd[0] = fd[1] = listener = -1;
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| 40 |
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| 41 | memset(&sock, 0, sizeof(sock));
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| 42 |
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| 43 | if ((listener = socket(PF_INET, SOCK_STREAM, 0)) == -1) goto failed;
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| 44 |
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| 45 | memset(&sock2, 0, sizeof(sock2));
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| 46 | #ifdef HAVE_SOCK_SIN_LEN
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| 47 | sock2.sin_len = sizeof(sock2);
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| 48 | #endif
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| 49 | sock2.sin_family = PF_INET;
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| 50 |
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| 51 | if (bind(listener, (struct sockaddr *)&sock2, sizeof(sock2)) != 0) goto failed;
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| 52 |
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| 53 | if (listen(listener, 1) != 0) goto failed;
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| 54 |
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| 55 | if (getsockname(listener, (struct sockaddr *)&sock, &socklen) != 0) goto failed;
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| 56 |
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| 57 | if ((fd[1] = socket(PF_INET, SOCK_STREAM, 0)) == -1) goto failed;
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| 58 |
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| 59 | set_blocking(fd[1], 0);
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| 60 |
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| 61 | sock.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
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