[0] | 1 | //socket.c: |
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| 2 | |
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[690] | 3 | /* |
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[4708] | 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2011 |
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[690] | 5 | * |
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| 6 | * This file is part of libroar a part of RoarAudio, |
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| 7 | * a cross-platform sound system for both, home and professional use. |
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| 8 | * See README for details. |
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| 9 | * |
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| 10 | * This file is free software; you can redistribute it and/or modify |
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| 11 | * it under the terms of the GNU General Public License version 3 |
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| 12 | * as published by the Free Software Foundation. |
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| 13 | * |
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| 14 | * libroar is distributed in the hope that it will be useful, |
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | * GNU General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with this software; see the file COPYING. If not, write to |
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[3517] | 21 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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| 22 | * Boston, MA 02110-1301, USA. |
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[690] | 23 | * |
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| 24 | * NOTE for everyone want's to change something and send patches: |
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| 25 | * read README and HACKING! There a addition information on |
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| 26 | * the license of this document you need to read before you send |
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| 27 | * any patches. |
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| 28 | * |
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| 29 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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| 30 | * or libpulse*: |
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| 31 | * The libs libroaresd, libroararts and libroarpulse link this lib |
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| 32 | * and are therefore GPL. Because of this it may be illigal to use |
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| 33 | * them with any software that uses libesd, libartsc or libpulse*. |
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| 34 | */ |
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| 35 | |
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[5109] | 36 | #define _LIBROAR_NOATTR_TO_STATIC /* ignore warnings for TO_STATIC functions */ |
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[0] | 37 | #include "libroar.h" |
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| 38 | |
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[81] | 39 | #define MODE_LISTEN ROAR_SOCKET_MODE_LISTEN |
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| 40 | #define MODE_CONNECT ROAR_SOCKET_MODE_CONNECT |
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[0] | 41 | |
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[1761] | 42 | #ifdef ROAR_TARGET_WIN32 |
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| 43 | void roar_socket_win32_init (void) { |
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| 44 | static int inited = 0; |
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| 45 | WSADATA wsadata; |
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| 46 | |
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| 47 | if ( !inited ) { |
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| 48 | WSAStartup(MAKEWORD(1,1) , &wsadata); |
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| 49 | inited++; |
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| 50 | } |
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| 51 | } |
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| 52 | #else |
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| 53 | #define roar_socket_win32_init() |
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| 54 | #endif |
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| 55 | |
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[873] | 56 | int roar_socket_decnet_set_timeout (int fh, time_t sec, int usec) { |
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| 57 | #ifdef ROAR_HAVE_LIBDNET |
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| 58 | struct timeval timeout = {sec, usec}; |
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| 59 | |
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| 60 | return setsockopt(fh, SOL_SOCKET, SO_SNDTIMEO, &timeout, sizeof(timeout)); |
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| 61 | #else |
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| 62 | return -1; |
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| 63 | #endif |
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| 64 | } |
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| 65 | |
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[968] | 66 | int roar_socket_recvbuf(int fh, int len) { |
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[1443] | 67 | #ifdef ROAR_HAVE_BSDSOCKETS |
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[968] | 68 | if ( len < 256 ) len = 256; |
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| 69 | |
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[4939] | 70 | return setsockopt(fh, SOL_SOCKET, SO_RCVBUF, (void *)&len, sizeof(len)); |
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[1443] | 71 | #else |
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| 72 | return -1; |
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| 73 | #endif |
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[968] | 74 | } |
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| 75 | |
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[5113] | 76 | int roar_socket_set_tos(int fh) { |
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[5210] | 77 | #if defined(ROAR_HAVE_BSDSOCKETS) && !defined(ROAR_TARGET_WIN32) |
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[5113] | 78 | int opt = IPTOS_LOWDELAY; |
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| 79 | int ret; |
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| 80 | |
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| 81 | roar_err_clear_errno(); |
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| 82 | ret = setsockopt(fh, IPPROTO_IP, IP_TOS, &opt, sizeof(int)); |
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| 83 | if ( ret < 0 ) |
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| 84 | roar_err_from_errno(); |
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| 85 | |
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| 86 | return ret; |
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| 87 | #else |
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| 88 | return -1; |
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| 89 | #endif |
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| 90 | } |
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| 91 | |
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[5248] | 92 | #if 0 |
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| 93 | static int roar_socket_new_decnet_seqpacket (void) { |
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[508] | 94 | #ifdef ROAR_HAVE_LIBDNET |
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| 95 | int fh; |
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| 96 | |
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| 97 | fh = socket(AF_DECnet, SOCK_SEQPACKET, DNPROTO_NSP); |
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| 98 | |
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[873] | 99 | roar_socket_decnet_set_timeout(fh, 300, 0); |
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| 100 | |
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[508] | 101 | return fh; |
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| 102 | #else |
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| 103 | return -1; |
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| 104 | #endif |
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| 105 | } |
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[5248] | 106 | #endif |
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[508] | 107 | |
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| 108 | |
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[5248] | 109 | #if 0 |
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| 110 | static int roar_socket_new_ipxspx (void) { |
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| 111 | return -1; |
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| 112 | } |
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| 113 | #endif |
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| 114 | |
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| 115 | int roar_socket_new (int type) { |
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| 116 | int sys_domain = -1, sys_type = -1, sys_protocol = 0; |
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[508] | 117 | int fh; |
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[5248] | 118 | #if defined(ROAR_HAVE_IPV4) && defined(TCP_NODELAY) && !defined(ROAR_TARGET_WIN32) |
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| 119 | int t = 1; |
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| 120 | #endif |
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[508] | 121 | |
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[5248] | 122 | switch (type) { |
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| 123 | case ROAR_SOCKET_TYPE_NONE: |
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| 124 | case ROAR_SOCKET_TYPE_GENSTR: |
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| 125 | roar_err_set(ROAR_ERROR_INVAL); |
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| 126 | return -1; |
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| 127 | break; |
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| 128 | case ROAR_SOCKET_TYPE_FILE: |
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| 129 | case ROAR_SOCKET_TYPE_FORK: |
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| 130 | roar_err_set(ROAR_ERROR_PERM); |
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| 131 | return -1; |
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| 132 | break; |
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| 133 | #ifdef ROAR_HAVE_IPV4 |
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| 134 | case ROAR_SOCKET_TYPE_TCP: |
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| 135 | sys_domain = AF_INET; sys_type = SOCK_STREAM; |
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| 136 | break; |
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| 137 | case ROAR_SOCKET_TYPE_UDP: |
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| 138 | sys_domain = AF_INET; sys_type = SOCK_DGRAM; |
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| 139 | break; |
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| 140 | #endif |
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| 141 | #ifdef ROAR_HAVE_UNIX |
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| 142 | case ROAR_SOCKET_TYPE_UNIX: |
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| 143 | sys_domain = AF_UNIX; sys_type = SOCK_STREAM; |
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| 144 | break; |
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| 145 | #endif |
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| 146 | #ifdef ROAR_HAVE_LIBDNET |
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| 147 | case ROAR_SOCKET_TYPE_DECNET: |
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| 148 | sys_domain = AF_DECnet; sys_type = SOCK_STREAM; sys_protocol = DNPROTO_NSP; |
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| 149 | break; |
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| 150 | #endif |
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| 151 | #ifdef ROAR_HAVE_IPV6 |
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| 152 | case ROAR_SOCKET_TYPE_TCP6: |
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| 153 | sys_domain = AF_INET6; sys_type = SOCK_STREAM; |
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| 154 | break; |
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| 155 | case ROAR_SOCKET_TYPE_UDP6: |
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| 156 | sys_domain = AF_INET6; sys_type = SOCK_DGRAM; |
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| 157 | break; |
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| 158 | #endif |
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| 159 | #ifdef ROAR_HAVE_IPX |
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| 160 | case ROAR_SOCKET_TYPE_IPX: |
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| 161 | sys_domain = AF_IPX; sys_type = SOCK_DGRAM; sys_protocol = AF_IPX; |
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| 162 | break; |
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| 163 | #endif |
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| 164 | case ROAR_SOCKET_TYPE_IPXSPX: |
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| 165 | case ROAR_SOCKET_TYPE_LAT_SERVICE: |
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| 166 | case ROAR_SOCKET_TYPE_LAT_REVERSE_PORT: |
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| 167 | default: |
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| 168 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
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| 169 | return -1; |
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| 170 | break; |
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| 171 | } |
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[508] | 172 | |
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[5248] | 173 | roar_socket_win32_init(); |
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| 174 | |
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| 175 | roar_err_clear_all(); |
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| 176 | fh = socket(sys_domain, sys_type, sys_protocol); |
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| 177 | if ( fh == -1 ) { |
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| 178 | roar_err_update(); |
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| 179 | return -1; |
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| 180 | } |
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| 181 | |
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| 182 | // do the extra work we need to do for some socket types: |
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| 183 | switch (type) { |
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| 184 | #ifdef ROAR_HAVE_IPV4 |
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| 185 | case ROAR_SOCKET_TYPE_TCP: |
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| 186 | #if defined(TCP_NODELAY) && !defined(ROAR_TARGET_WIN32) |
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| 187 | setsockopt(fh, IPPROTO_TCP, TCP_NODELAY, &t, sizeof(int)); |
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| 188 | #endif |
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| 189 | case ROAR_SOCKET_TYPE_UDP: |
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| 190 | #endif |
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| 191 | #ifdef ROAR_HAVE_IPV6 |
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| 192 | case ROAR_SOCKET_TYPE_TCP6: |
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| 193 | case ROAR_SOCKET_TYPE_UDP6: |
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| 194 | #endif |
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| 195 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) |
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| 196 | roar_socket_set_tos(fh); |
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| 197 | break; |
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| 198 | #endif |
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| 199 | #ifdef ROAR_HAVE_LIBDNET |
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| 200 | case ROAR_SOCKET_TYPE_DECNET: |
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| 201 | roar_socket_decnet_set_timeout(fh, 300, 0); |
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| 202 | break; |
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| 203 | #endif |
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| 204 | } |
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[873] | 205 | |
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[508] | 206 | return fh; |
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[530] | 207 | } |
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| 208 | |
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| 209 | |
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[0] | 210 | int roar_socket_nonblock(int fh, int state) { |
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[4554] | 211 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) && defined(ROAR_HAVE_FCNTL) |
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[0] | 212 | int flags; |
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| 213 | |
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| 214 | if ( (flags = fcntl(fh, F_GETFL, 0)) == -1 ) { |
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[5148] | 215 | roar_err_from_errno(); |
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[0] | 216 | ROAR_ERR("roar_socket_nonblock(fh=%i, state=%i): Can not read flags: %s", fh, state, strerror(errno)); |
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| 217 | ROAR_DBG("roar_socket_nonblock(fh=%i, state=%i) = -1", fh, state); |
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| 218 | return -1; |
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| 219 | } |
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| 220 | |
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[1119] | 221 | if ( !(flags & O_NONBLOCK) && state == ROAR_SOCKET_BLOCK ) |
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| 222 | return 0; |
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| 223 | |
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[0] | 224 | flags |= O_NONBLOCK; |
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| 225 | |
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| 226 | if ( state == ROAR_SOCKET_BLOCK ) |
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| 227 | flags -= O_NONBLOCK; |
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| 228 | |
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| 229 | if ( fcntl(fh, F_SETFL, flags) == -1 ) { |
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[5148] | 230 | roar_err_from_errno(); |
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[0] | 231 | ROAR_ERR("roar_socket_nonblock(fh=%i, state=%i): Can not set flags: %s", fh, state, strerror(errno)); |
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| 232 | ROAR_DBG("roar_socket_nonblock(fh=%i, state=%i) = -1", fh, state); |
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| 233 | return -1; |
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| 234 | } |
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| 235 | |
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| 236 | ROAR_DBG("roar_socket_nonblock(fh=%i, state=%i) = 0", fh, state); |
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| 237 | return 0; |
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[1085] | 238 | #else |
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| 239 | ROAR_WARN("roar_socket_nonblock(*): no nonblocking IO support on win32, use a real OS"); |
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| 240 | return -1; |
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| 241 | #endif |
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[0] | 242 | } |
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| 243 | |
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[375] | 244 | int roar_socket_dup_udp_local_end (int fh) { |
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[4554] | 245 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) && defined(ROAR_HAVE_FCNTL) |
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[376] | 246 | int n = -1; |
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| 247 | int flags = -1; |
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| 248 | struct sockaddr_in socket_addr; |
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| 249 | socklen_t len = sizeof(struct sockaddr_in); |
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| 250 | |
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| 251 | if ( (flags = fcntl(fh, F_GETFL, 0)) == -1 ) { |
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| 252 | ROAR_WARN("roar_socket_dup_udp_local_end(fh=%i): Can not read flags: %s", fh, strerror(errno)); |
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| 253 | } |
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| 254 | |
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| 255 | if ( getsockname(fh, (struct sockaddr *)&socket_addr, &len) == -1 ) { |
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[5148] | 256 | roar_err_from_errno(); |
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[376] | 257 | return -1; |
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| 258 | } |
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| 259 | |
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| 260 | if ( socket_addr.sin_family != AF_INET ) { |
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[5148] | 261 | roar_err_set(ROAR_ERROR_TYPEMM); |
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[376] | 262 | return -1; |
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| 263 | } |
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| 264 | |
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[5248] | 265 | n = roar_socket_new(ROAR_SOCKET_TYPE_UDP); |
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[376] | 266 | |
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| 267 | if ( n == -1 ) |
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| 268 | return -1; |
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| 269 | |
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| 270 | // if ( mode_func(fh, (struct sockaddr *)&socket_addr, sizeof(struct sockaddr_in)) == -1 ) { |
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| 271 | if ( bind(n, (struct sockaddr *)&socket_addr, len) == -1 ) { |
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[5148] | 272 | roar_err_from_errno(); |
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[376] | 273 | close(n); |
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| 274 | return -1; |
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| 275 | } |
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| 276 | |
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| 277 | if ( flags != -1 ) { |
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| 278 | if ( fcntl(fh, F_SETFL, flags) == -1 ) { |
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| 279 | ROAR_WARN("roar_socket_dup_udp_local_end(fh=%i): Can not set flags: %s", fh, strerror(errno)); |
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| 280 | return -1; |
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| 281 | } |
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| 282 | } |
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| 283 | |
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| 284 | |
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| 285 | return n; |
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[1085] | 286 | #else |
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| 287 | ROAR_WARN("roar_socket_dup_udp_local_end(*): this function is not supported on win32, use a real OS"); |
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| 288 | return -1; |
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| 289 | #endif |
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[375] | 290 | } |
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| 291 | |
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[753] | 292 | |
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| 293 | #define _SCMR_CONTROLLEN (sizeof(struct cmsghdr) + sizeof(int)) |
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| 294 | int roar_socket_send_fh (int sock, int fh, char * mes, size_t len) { |
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[4554] | 295 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) && !defined(ROAR_OS_SUNOS) && !defined(ROAR_TARGET_OPENVMS) |
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[753] | 296 | struct iovec iov[1]; |
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| 297 | struct msghdr msg; |
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| 298 | char cmptr_buf[_SCMR_CONTROLLEN]; |
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| 299 | struct cmsghdr * cmptr = (struct cmsghdr *) cmptr_buf; |
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[754] | 300 | char localmes[1] = {0}; |
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[753] | 301 | |
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[759] | 302 | ROAR_DBG("roar_socket_send_fh(sock=%i, fh=%i, mes=%p, len=%u) = ?", sock, fh, mes, len); |
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| 303 | |
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[754] | 304 | if ( sock < 0 || fh < 0 ) |
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[753] | 305 | return -1; |
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| 306 | |
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[754] | 307 | if ( len == 0 ) { |
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| 308 | len = 1; |
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| 309 | mes = localmes; |
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| 310 | } |
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| 311 | |
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| 312 | memset(cmptr, 0, _SCMR_CONTROLLEN); |
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| 313 | |
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[753] | 314 | iov[0].iov_base = mes; |
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| 315 | iov[0].iov_len = len; |
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| 316 | msg.msg_iov = iov; |
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| 317 | msg.msg_iovlen = 1; |
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| 318 | msg.msg_name = NULL; |
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| 319 | msg.msg_namelen = 0; |
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| 320 | |
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| 321 | cmptr->cmsg_level = SOL_SOCKET; |
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| 322 | cmptr->cmsg_type = SCM_RIGHTS; |
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| 323 | cmptr->cmsg_len = _SCMR_CONTROLLEN; |
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| 324 | msg.msg_control = (caddr_t) cmptr; |
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| 325 | msg.msg_controllen = _SCMR_CONTROLLEN; |
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| 326 | *(int *)CMSG_DATA(cmptr) = fh; |
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| 327 | |
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| 328 | return sendmsg(sock, &msg, 0); |
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[1085] | 329 | #else |
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| 330 | ROAR_ERR("roar_socket_send_fh(*): There is no UNIX Domain Socket support in win32, download a real OS."); |
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| 331 | return -1; |
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| 332 | #endif |
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[753] | 333 | } |
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| 334 | |
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| 335 | int roar_socket_recv_fh (int sock, char * mes, size_t * len) { |
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[4554] | 336 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) && !defined(ROAR_OS_SUNOS) && !defined(ROAR_TARGET_OPENVMS) |
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[753] | 337 | struct iovec iov[1]; |
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| 338 | struct msghdr msg; |
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| 339 | char cmptr_buf[_SCMR_CONTROLLEN]; |
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| 340 | struct cmsghdr * cmptr = (struct cmsghdr *) cmptr_buf; |
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[754] | 341 | char localmes[1]; |
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| 342 | size_t locallen[1] = {1}; |
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[753] | 343 | |
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[4256] | 344 | ROAR_DBG("roar_socket_recv_fh(sock=%i, mes=%p, len=%p) = ?", sock, mes, len); |
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| 345 | |
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| 346 | if ( sock < 0 ) { |
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| 347 | ROAR_DBG("roar_socket_recv_fh(sock=%i, mes=%p, len=%p) = -1 // invalid socket", sock, mes, len); |
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[753] | 348 | return -1; |
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[4256] | 349 | } |
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[753] | 350 | |
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[754] | 351 | if ( len == NULL ) { |
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| 352 | len = locallen; |
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| 353 | mes = localmes; |
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| 354 | } |
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| 355 | |
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[753] | 356 | iov[0].iov_base = mes; |
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| 357 | iov[0].iov_len = *len; |
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| 358 | msg.msg_iov = iov; |
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| 359 | msg.msg_iovlen = 1; |
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| 360 | msg.msg_name = NULL; |
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| 361 | msg.msg_namelen = 0; |
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| 362 | |
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| 363 | msg.msg_control = (caddr_t) cmptr; |
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| 364 | msg.msg_controllen = _SCMR_CONTROLLEN; |
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| 365 | |
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[4256] | 366 | if ( (*len = recvmsg(sock, &msg, 0)) == -1 ) { |
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| 367 | ROAR_DBG("roar_socket_recv_fh(sock=%i, mes=%p, len=%p) = -1 // can not read from socket", sock, mes, len); |
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[753] | 368 | return -1; |
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[4256] | 369 | } |
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[753] | 370 | |
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[4257] | 371 | if ( msg.msg_controllen < _SCMR_CONTROLLEN || |
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| 372 | cmptr->cmsg_len != _SCMR_CONTROLLEN ) { |
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[4256] | 373 | ROAR_DBG("roar_socket_recv_fh(sock=%i, mes=%p, len=%p) = -1 // control len is wrong", sock, mes, len); |
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[753] | 374 | return -1; |
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[4256] | 375 | } |
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[753] | 376 | |
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[4256] | 377 | ROAR_DBG("roar_socket_recv_fh(sock=%i, mes=%p, len=%p) = %i", sock, mes, len, *(int *)CMSG_DATA(cmptr)); |
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[753] | 378 | return *(int *)CMSG_DATA(cmptr); |
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[1085] | 379 | #else |
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| 380 | ROAR_ERR("roar_socket_recv_fh(*): There is no UNIX Domain Socket support in win32, download a real OS."); |
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| 381 | return -1; |
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| 382 | #endif |
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[753] | 383 | } |
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| 384 | |
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[0] | 385 | int roar_socket_listen (int type, char * host, int port) { |
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| 386 | return roar_socket_open(MODE_LISTEN, type, host, port); |
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| 387 | } |
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| 388 | |
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| 389 | int roar_socket_connect (char * host, int port) { |
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[2] | 390 | char * proxy_type = getenv("ROAR_PROXY"); |
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| 391 | |
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[4692] | 392 | ROAR_DBG("roar_socket_connect(host='%s', port=%i) = ?", host, port); |
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| 393 | |
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[2] | 394 | if ( proxy_type == NULL || strcmp(proxy_type, "") == 0 ) { |
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| 395 | return roar_socket_open(MODE_CONNECT, ROAR_SOCKET_TYPE_UNKNOWN, host, port); |
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| 396 | } else { |
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[1087] | 397 | #ifdef ROAR_SUPPORT_PROXY |
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[2] | 398 | return roar_socket_open_proxy(MODE_CONNECT, ROAR_SOCKET_TYPE_UNKNOWN, host, port, proxy_type); |
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[1087] | 399 | #else |
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| 400 | ROAR_ERR("roar_socket_connect(host='%s', port=%i): no support for proxy code (proxy_type=%s)", host, port, proxy_type); |
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| 401 | return -1; |
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| 402 | #endif |
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[2] | 403 | } |
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[0] | 404 | } |
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| 405 | |
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[508] | 406 | |
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| 407 | int roar_socket_listen_decnet (char * object, int num) { |
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| 408 | #ifdef ROAR_HAVE_LIBDNET |
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[5248] | 409 | int fh = roar_socket_new(ROAR_SOCKET_TYPE_DECNET); |
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[508] | 410 | struct sockaddr_dn bind_sockaddr; |
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| 411 | |
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| 412 | if ( fh == -1 ) |
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| 413 | return -1; |
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| 414 | |
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| 415 | if ( !*object ) |
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| 416 | object = NULL; |
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| 417 | |
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| 418 | if ( (object && num) || (!*object && !num) ) { |
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| 419 | ROAR_WARN("roar_socket_listen_decnet(object='%s', num=%i): illegal address!", object, num); |
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| 420 | close(fh); |
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| 421 | return -1; |
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| 422 | } |
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| 423 | |
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| 424 | memset((void*)&bind_sockaddr, 0, sizeof(struct sockaddr_dn)); |
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| 425 | |
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| 426 | bind_sockaddr.sdn_family = AF_DECnet; |
---|
| 427 | bind_sockaddr.sdn_flags = 0; |
---|
| 428 | bind_sockaddr.sdn_objnum = num; |
---|
| 429 | |
---|
| 430 | if ( num ) { |
---|
| 431 | bind_sockaddr.sdn_objnamel = 0; |
---|
| 432 | } else { |
---|
[4073] | 433 | bind_sockaddr.sdn_objnamel = ROAR_HOST2LE16(strlen(object)); |
---|
[1068] | 434 | if ( bind_sockaddr.sdn_objnamel > DN_MAXOBJL ) |
---|
| 435 | bind_sockaddr.sdn_objnamel = DN_MAXOBJL; |
---|
| 436 | strncpy((char*)bind_sockaddr.sdn_objname, object, DN_MAXOBJL); |
---|
[508] | 437 | } |
---|
| 438 | |
---|
| 439 | if ( bind(fh, (struct sockaddr *) &bind_sockaddr, sizeof(bind_sockaddr)) == -1 ) { |
---|
| 440 | close(fh); |
---|
| 441 | return -1; |
---|
| 442 | } |
---|
| 443 | |
---|
| 444 | if ( listen(fh, 8) == -1 ) { |
---|
| 445 | close(fh); |
---|
| 446 | return -1; |
---|
| 447 | } |
---|
| 448 | |
---|
| 449 | return fh; |
---|
| 450 | #else |
---|
| 451 | return -1; |
---|
| 452 | #endif |
---|
| 453 | } |
---|
| 454 | |
---|
[5121] | 455 | const char * roar_socket_get_local_nodename(void) { |
---|
[521] | 456 | #ifdef ROAR_HAVE_LIBDNET |
---|
| 457 | static char node[16] = {0}; |
---|
| 458 | struct dn_naddr *binaddr; |
---|
| 459 | struct nodeent *dp; |
---|
| 460 | |
---|
| 461 | if ( !node[0] ) { |
---|
| 462 | if ( (binaddr=getnodeadd()) == NULL) |
---|
| 463 | return NULL; |
---|
| 464 | |
---|
[3835] | 465 | if ( (dp=getnodebyaddr((char*)binaddr->a_addr, binaddr->a_len, AF_DECnet)) == NULL ) |
---|
[521] | 466 | return NULL; |
---|
| 467 | |
---|
| 468 | strncpy(node, dp->n_name, 15); |
---|
| 469 | node[15] = 0; |
---|
| 470 | } |
---|
| 471 | |
---|
| 472 | return node; |
---|
| 473 | #else |
---|
| 474 | return NULL; |
---|
| 475 | #endif |
---|
| 476 | } |
---|
| 477 | |
---|
[0] | 478 | int roar_socket_open (int mode, int type, char * host, int port) { |
---|
| 479 | // int type = ROAR_SOCKET_TYPE_INET; |
---|
| 480 | int fh; |
---|
[531] | 481 | #ifdef ROAR_HAVE_IPX |
---|
| 482 | #define _NEED_OBJ |
---|
[5184] | 483 | #endif |
---|
| 484 | #if defined(ROAR_HAVE_IPX) || defined(ROAR_HAVE_GETADDRINFO) |
---|
[531] | 485 | int ret; |
---|
| 486 | #endif |
---|
[3788] | 487 | #ifdef ROAR_HAVE_IPX |
---|
| 488 | unsigned int ipx_port; |
---|
| 489 | #endif |
---|
[3643] | 490 | #ifdef ROAR_HAVE_UNIX |
---|
| 491 | int abstract = 0; |
---|
| 492 | #endif |
---|
[1476] | 493 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) || defined(ROAR_HAVE_UNIX) || defined(ROAR_HAVE_IPX) |
---|
[512] | 494 | union { |
---|
[1359] | 495 | struct sockaddr sa; |
---|
[1361] | 496 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) |
---|
[512] | 497 | struct sockaddr_in in; |
---|
[1359] | 498 | #endif |
---|
[1090] | 499 | #ifdef ROAR_HAVE_UNIX |
---|
[512] | 500 | struct sockaddr_un un; |
---|
[1090] | 501 | #endif |
---|
[890] | 502 | #ifdef ROAR_HAVE_IPV6 |
---|
[514] | 503 | struct sockaddr_in6 in6; |
---|
[890] | 504 | #endif |
---|
[531] | 505 | #ifdef ROAR_HAVE_IPX |
---|
| 506 | struct sockaddr_ipx ipx; |
---|
| 507 | #endif |
---|
[512] | 508 | } socket_addr; |
---|
[4759] | 509 | socklen_t addrlen; |
---|
[1476] | 510 | #endif |
---|
[1359] | 511 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) |
---|
[0] | 512 | struct hostent * he; |
---|
[1359] | 513 | #endif |
---|
[0] | 514 | //unsigned int host_div = 0; |
---|
[3788] | 515 | #ifdef ROAR_TARGET_WIN32 |
---|
| 516 | int PASCAL (*mode_func)(SOCKET,const struct sockaddr*,int) = connect; // default is to connect |
---|
| 517 | #else |
---|
[0] | 518 | int (*mode_func)(int sockfd, const struct sockaddr *serv_addr, socklen_t addrlen) = connect; // default is to connect |
---|
[3788] | 519 | #endif |
---|
[501] | 520 | #ifdef ROAR_HAVE_LIBDNET |
---|
[531] | 521 | #define _NEED_OBJ |
---|
| 522 | #endif |
---|
| 523 | #ifdef _NEED_OBJ |
---|
[501] | 524 | char obj[80]; |
---|
| 525 | char * del; |
---|
| 526 | #endif |
---|
[4759] | 527 | int af_guessed = 0; |
---|
| 528 | #ifdef ROAR_HAVE_GETADDRINFO |
---|
| 529 | struct addrinfo hints, *res = NULL; |
---|
| 530 | char port_as_string[32]; |
---|
| 531 | #endif |
---|
[5098] | 532 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) |
---|
| 533 | int is_numerical = 1; |
---|
| 534 | const char * numptr; |
---|
| 535 | #endif |
---|
[0] | 536 | |
---|
[4692] | 537 | ROAR_DBG("roar_socket_open(mode=%i, type=%i, host='%s', port=%i) = ?", mode, type, host, port); |
---|
| 538 | |
---|
[5184] | 539 | roar_err_set(ROAR_ERROR_UNKNOWN); |
---|
| 540 | |
---|
[0] | 541 | if ( mode == MODE_LISTEN ) |
---|
| 542 | mode_func = bind; |
---|
| 543 | |
---|
| 544 | if ( type == ROAR_SOCKET_TYPE_UNKNOWN ) { |
---|
[4759] | 545 | af_guessed = 1; |
---|
[0] | 546 | type = ROAR_SOCKET_TYPE_INET; |
---|
[69] | 547 | if ( *host == '/' ) { |
---|
[0] | 548 | type = ROAR_SOCKET_TYPE_UNIX; |
---|
[69] | 549 | } else if ( strcmp(host, "+fork") == 0 ) { |
---|
| 550 | type = ROAR_SOCKET_TYPE_FORK; |
---|
[3643] | 551 | } else if ( strcmp(host, "+abstract") == 0 ) { |
---|
| 552 | type = ROAR_SOCKET_TYPE_UNIX; |
---|
[3785] | 553 | #ifdef ROAR_HAVE_UNIX |
---|
[3643] | 554 | abstract = 1; |
---|
[3785] | 555 | #endif |
---|
[501] | 556 | } else if ( strstr(host, "::") != NULL ) { |
---|
| 557 | type = ROAR_SOCKET_TYPE_DECNET; |
---|
[531] | 558 | } else if ( host[strlen(host)-1] == ')' ) { |
---|
| 559 | type = ROAR_SOCKET_TYPE_IPX; |
---|
[69] | 560 | } |
---|
[0] | 561 | } |
---|
| 562 | |
---|
| 563 | |
---|
[4692] | 564 | ROAR_DBG("roar_socket_open(mode=%i, type=%i, host='%s', port=%i) = ?", mode, type, host, port); |
---|
| 565 | |
---|
[0] | 566 | ROAR_DBG("roar_socket_open(*): type=%s, host='%s', port=%i", |
---|
[3956] | 567 | type == ROAR_SOCKET_TYPE_UNIX ? "UNIX" : "???", host, port); |
---|
[0] | 568 | |
---|
[501] | 569 | if ( type == ROAR_SOCKET_TYPE_DECNET ) { |
---|
| 570 | #ifdef ROAR_HAVE_LIBDNET |
---|
[508] | 571 | ROAR_DBG("roar_socket_open(*): hostname for DECnet: host(%p)=%s", host, host); |
---|
[501] | 572 | del = strstr(host, "::"); |
---|
[508] | 573 | ROAR_DBG("roar_socket_open(*): hostname for DECnet: del(%p)=%s", del, del); |
---|
| 574 | |
---|
| 575 | if ( del == NULL ) { |
---|
| 576 | ROAR_WARN("roar_socket_open(*): invalid hostname for DECnet: %s", host); |
---|
[5184] | 577 | roar_err_set(ROAR_ERROR_INVAL); |
---|
[508] | 578 | return -1; |
---|
| 579 | } |
---|
| 580 | |
---|
[501] | 581 | *del = 0; |
---|
| 582 | |
---|
| 583 | if ( *(del+2) == '#' ) { // assume we have node::#num |
---|
| 584 | port = atoi(del+2); |
---|
| 585 | } |
---|
| 586 | |
---|
| 587 | if ( port ) { |
---|
[1067] | 588 | snprintf(obj, 7, "%i", port); // no need for snprintf() as dec(port) is smaller than obj[] |
---|
[501] | 589 | } else { |
---|
| 590 | *obj = 0; |
---|
| 591 | strncat(obj, del+2, 79); |
---|
| 592 | } |
---|
| 593 | |
---|
[5137] | 594 | ROAR_DBG("roar_socket_open(*): obj='%s', port=%i", obj, port); |
---|
| 595 | |
---|
[508] | 596 | if ( mode == MODE_LISTEN ) { |
---|
| 597 | fh = roar_socket_listen_decnet(obj, port); |
---|
| 598 | *del = ':'; |
---|
| 599 | return fh; |
---|
| 600 | } else { |
---|
| 601 | // There is nothing wrong in this case to use dnet_conn() so we do. |
---|
[5137] | 602 | ROAR_DBG("roar_socket_open(*): CALL dnet_conn('%s', '%s', SOCK_STREAM, 0 ,0 ,0 , 0)", host, obj); |
---|
[501] | 603 | fh = dnet_conn(host, obj, SOCK_STREAM, 0 ,0 ,0 , 0); |
---|
[5137] | 604 | ROAR_DBG("roar_socket_open(*): RET %i", fh); |
---|
[501] | 605 | *del = ':'; |
---|
| 606 | return fh; |
---|
[533] | 607 | } |
---|
[501] | 608 | #else |
---|
[5184] | 609 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
---|
[533] | 610 | return -1; // no decnet support |
---|
[501] | 611 | #endif |
---|
| 612 | } |
---|
| 613 | |
---|
[1359] | 614 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) |
---|
[512] | 615 | memset(&socket_addr, 0, sizeof(socket_addr)); |
---|
[60] | 616 | memset(&he, 0, sizeof(he)); // FIXME: we have a valid pointer in here???? |
---|
[1359] | 617 | #endif |
---|
[0] | 618 | |
---|
| 619 | |
---|
[520] | 620 | if ( type == ROAR_SOCKET_TYPE_INET || type == ROAR_SOCKET_TYPE_INET6 ) { |
---|
[1359] | 621 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) |
---|
[0] | 622 | |
---|
[3956] | 623 | ROAR_DBG("roar_socket_open(*): type=INET|INET6, host='%s', port=%i", host, port); |
---|
[2039] | 624 | |
---|
[1768] | 625 | roar_socket_win32_init(); // we need to do this early as gethostbyname() requires this. |
---|
| 626 | |
---|
[3956] | 627 | ROAR_DBG("roar_socket_open(*): type=INET|INET6, host='%s', port=%i", host, port); |
---|
| 628 | |
---|
[5098] | 629 | if ( !!strcmp(host, "0.0.0.0") ) { |
---|
| 630 | for (numptr = host; is_numerical && *numptr != 0; numptr++) |
---|
| 631 | if ( ! ((*numptr >= '0' && *numptr <= '9') || *numptr == '.') ) |
---|
| 632 | is_numerical = 0; |
---|
| 633 | |
---|
[5138] | 634 | if ( is_numerical && roar_libroar_iswarn(NULL) ) { |
---|
[5098] | 635 | ROAR_WARN("roar_socket_open(*): Hostname \"%s\" is numerical. Do not use IP addresses directly. Use Hostnames.", host); |
---|
| 636 | } |
---|
| 637 | } |
---|
| 638 | |
---|
[4759] | 639 | #ifdef ROAR_HAVE_GETADDRINFO |
---|
| 640 | memset(&hints, 0, sizeof(hints)); |
---|
| 641 | hints.ai_socktype = SOCK_STREAM; |
---|
| 642 | if ( af_guessed ) { |
---|
| 643 | hints.ai_family = AF_UNSPEC; |
---|
| 644 | } else { |
---|
| 645 | hints.ai_family = type == ROAR_SOCKET_TYPE_INET ? AF_INET : AF_INET6; |
---|
| 646 | } |
---|
| 647 | |
---|
| 648 | snprintf(port_as_string, sizeof(port_as_string), "%i", port); |
---|
| 649 | |
---|
[5184] | 650 | ret = getaddrinfo(host, port_as_string, &hints, &res); |
---|
| 651 | switch (ret) { |
---|
| 652 | case 0: /* no error */; break; |
---|
[5203] | 653 | #ifdef EAI_ADDRFAMILY |
---|
[5184] | 654 | case EAI_ADDRFAMILY: roar_err_set(ROAR_ERROR_NOENT); break; |
---|
[5203] | 655 | #endif |
---|
[5184] | 656 | case EAI_AGAIN: roar_err_set(ROAR_ERROR_AGAIN); break; |
---|
| 657 | case EAI_BADFLAGS: roar_err_set(ROAR_ERROR_INVAL); break; |
---|
| 658 | case EAI_FAIL: roar_err_set(ROAR_ERROR_RIO); break; |
---|
| 659 | case EAI_FAMILY: roar_err_set(ROAR_ERROR_AFNOTSUP); break; |
---|
| 660 | case EAI_MEMORY: roar_err_set(ROAR_ERROR_NOMEM); break; |
---|
[5203] | 661 | #ifdef EAI_NODATA |
---|
[5184] | 662 | case EAI_NODATA: roar_err_set(ROAR_ERROR_NODATA); break; |
---|
[5203] | 663 | #endif |
---|
[5184] | 664 | case EAI_NONAME: roar_err_set(ROAR_ERROR_NOENT); break; |
---|
| 665 | case EAI_SERVICE: roar_err_set(ROAR_ERROR_PROTONOSUP); break; |
---|
| 666 | case EAI_SOCKTYPE: roar_err_set(ROAR_ERROR_INVAL); break; |
---|
| 667 | case EAI_SYSTEM: roar_err_from_errno(); break; |
---|
| 668 | default: |
---|
| 669 | roar_err_set(ROAR_ERROR_UNKNOWN); |
---|
| 670 | break; |
---|
| 671 | } |
---|
| 672 | if ( ret != 0 ) |
---|
[4759] | 673 | return -1; |
---|
| 674 | |
---|
| 675 | if ( af_guessed ) { |
---|
| 676 | type = res->ai_family == AF_INET ? ROAR_SOCKET_TYPE_INET : ROAR_SOCKET_TYPE_INET6; |
---|
| 677 | } |
---|
| 678 | |
---|
| 679 | if ( type == ROAR_SOCKET_TYPE_INET ) { |
---|
[5248] | 680 | fh = roar_socket_new(ROAR_SOCKET_TYPE_TCP); |
---|
[4759] | 681 | } else { |
---|
[5248] | 682 | fh = roar_socket_new(ROAR_SOCKET_TYPE_TCP6); |
---|
[4759] | 683 | } |
---|
| 684 | |
---|
| 685 | memcpy(&(socket_addr.sa), res->ai_addr, res->ai_addrlen); |
---|
| 686 | addrlen = res->ai_addrlen; |
---|
| 687 | |
---|
| 688 | if ( res != NULL ) |
---|
| 689 | freeaddrinfo(res); |
---|
| 690 | #else |
---|
[0] | 691 | if ( (he = gethostbyname(host)) == NULL ) { |
---|
| 692 | ROAR_ERR("roar_socket_open(*): Can\'t resolve host name '%s'", |
---|
| 693 | host); |
---|
[5184] | 694 | roar_err_from_errno(); |
---|
[0] | 695 | return -1; |
---|
| 696 | } |
---|
| 697 | |
---|
[4692] | 698 | ROAR_DBG("roar_socket_open(*): he=%p", he); |
---|
| 699 | |
---|
[4759] | 700 | memcpy((struct in_addr *)&(socket_addr.in.sin_addr), he->h_addr, sizeof(struct in_addr)); |
---|
[0] | 701 | |
---|
[520] | 702 | /* set the connect information */ |
---|
| 703 | socket_addr.in.sin_family = AF_INET; |
---|
| 704 | socket_addr.in.sin_port = ROAR_HOST2NET16(port); |
---|
| 705 | |
---|
[5248] | 706 | fh = roar_socket_new(ROAR_SOCKET_TYPE_TCP); |
---|
[4759] | 707 | addrlen = sizeof(struct sockaddr_in); |
---|
| 708 | #endif |
---|
[2039] | 709 | |
---|
[4692] | 710 | ROAR_DBG("roar_socket_open(*): fh=%i", fh); |
---|
| 711 | |
---|
[2039] | 712 | if ( fh == -1 ) { |
---|
| 713 | ROAR_ERR("roar_socket_open(*): Can\'t create TCP socket: %s", strerror(errno)); |
---|
| 714 | return -1; |
---|
| 715 | } |
---|
| 716 | |
---|
| 717 | ROAR_DBG("roar_socket_open(*) = ?"); |
---|
[0] | 718 | |
---|
[4692] | 719 | ROAR_DBG("roar_socket_open(*): fh=%i", fh); |
---|
| 720 | |
---|
[4759] | 721 | if ( mode_func(fh, (struct sockaddr *)&socket_addr.sa, addrlen) == -1 ) { |
---|
[520] | 722 | ROAR_DBG("roar_socket_open(*): Can not connect/bind: %s", strerror(errno)); |
---|
[5184] | 723 | roar_err_from_errno(); |
---|
[520] | 724 | close(fh); |
---|
| 725 | return -1; |
---|
| 726 | } |
---|
[4692] | 727 | |
---|
| 728 | ROAR_DBG("roar_socket_open(*): fh=%i", fh); |
---|
| 729 | |
---|
[0] | 730 | // hey! we have a socket... |
---|
[2040] | 731 | ROAR_DBG("roar_socket_open(*) = ? // we have a socket :)"); |
---|
[1359] | 732 | #else |
---|
[4692] | 733 | ROAR_DBG("roar_socket_open(*) = -1 // no IPv4 or IPv6 support"); |
---|
[5184] | 734 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
---|
[1359] | 735 | return -1; |
---|
| 736 | #endif |
---|
[69] | 737 | } else if ( type == ROAR_SOCKET_TYPE_UNIX ) { |
---|
[1090] | 738 | #ifdef ROAR_HAVE_UNIX |
---|
[512] | 739 | socket_addr.un.sun_family = AF_UNIX; |
---|
[3643] | 740 | |
---|
| 741 | if ( abstract ) { |
---|
| 742 | memset(socket_addr.un.sun_path, 0, sizeof(socket_addr.un.sun_path)); |
---|
| 743 | snprintf(socket_addr.un.sun_path+1, sizeof(socket_addr.un.sun_path)-1, "RoarAudio/UNIX/Abstract/%i", abstract); |
---|
| 744 | } else { |
---|
| 745 | strncpy(socket_addr.un.sun_path, host, sizeof(socket_addr.un.sun_path) - 1); |
---|
| 746 | } |
---|
[60] | 747 | |
---|
[5248] | 748 | fh = roar_socket_new(ROAR_SOCKET_TYPE_UNIX); |
---|
[60] | 749 | |
---|
[512] | 750 | if ( mode_func(fh, (struct sockaddr *)&socket_addr.un, sizeof(struct sockaddr_un)) == -1 ) { |
---|
[60] | 751 | ROAR_DBG("roar_socket_open(*): Can not connect/bind: %s", strerror(errno)); |
---|
[5184] | 752 | roar_err_from_errno(); |
---|
[60] | 753 | close(fh); |
---|
| 754 | return -1; |
---|
| 755 | } |
---|
[1090] | 756 | #else |
---|
| 757 | ROAR_ERR("roar_socket_open(*): There is no UNIX Domain Socket support in win32, download a real OS."); |
---|
[5184] | 758 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
---|
[1090] | 759 | return -1; |
---|
| 760 | #endif |
---|
[531] | 761 | } else if ( type == ROAR_SOCKET_TYPE_IPX ) { |
---|
[534] | 762 | #ifdef ROAR_HAVE_IPX |
---|
[531] | 763 | socket_addr.ipx.sipx_family = AF_IPX; |
---|
| 764 | |
---|
| 765 | obj[0] = 0; |
---|
| 766 | |
---|
[3788] | 767 | if ( (ret = sscanf(host, "%8x.%12s(%x)", &socket_addr.ipx.sipx_network, obj, &ipx_port)) < 2 ) { |
---|
[531] | 768 | return -1; |
---|
[3788] | 769 | socket_addr.ipx.sipx_port = ipx_port; |
---|
[531] | 770 | } else if ( ret == 2 ) { |
---|
| 771 | socket_addr.ipx.sipx_port = port; // Network Byte Order? |
---|
| 772 | } |
---|
| 773 | |
---|
| 774 | memset(socket_addr.ipx.sipx_node, 0, IPX_NODE_LEN); |
---|
| 775 | ret = strlen(obj); |
---|
| 776 | |
---|
| 777 | if ( ret % 2 ) // needs to be even at the moment |
---|
| 778 | return -1; |
---|
| 779 | |
---|
[5248] | 780 | fh = roar_socket_new(ROAR_SOCKET_TYPE_IPX); |
---|
[531] | 781 | |
---|
| 782 | close(fh); |
---|
[5248] | 783 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
---|
[531] | 784 | return -1; |
---|
[534] | 785 | #else |
---|
[5184] | 786 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
---|
[534] | 787 | return -1; |
---|
| 788 | #endif |
---|
[69] | 789 | } else if ( type == ROAR_SOCKET_TYPE_FORK ) { |
---|
| 790 | return roar_socket_open_fork(mode, host, port); |
---|
[75] | 791 | } else if ( type == ROAR_SOCKET_TYPE_FILE ) { |
---|
| 792 | return roar_socket_open_file(mode, host, port); |
---|
[69] | 793 | } else { |
---|
[5184] | 794 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
---|
[69] | 795 | return -1; |
---|
[0] | 796 | } |
---|
| 797 | |
---|
[1476] | 798 | if ( mode == MODE_LISTEN ) { |
---|
[2040] | 799 | #if defined(ROAR_HAVE_BSDSOCKETS) || defined(ROAR_TARGET_WIN32) |
---|
[0] | 800 | if ( listen(fh, ROAR_SOCKET_QUEUE_LEN) == -1 ) { |
---|
[5184] | 801 | roar_err_from_errno(); |
---|
[0] | 802 | close(fh); |
---|
| 803 | return -1; |
---|
| 804 | } |
---|
[1476] | 805 | #else |
---|
[5184] | 806 | roar_err_set(ROAR_ERROR_NOSYS); |
---|
[1476] | 807 | return -1; |
---|
| 808 | #endif |
---|
| 809 | } |
---|
[0] | 810 | |
---|
| 811 | return fh; |
---|
| 812 | } |
---|
| 813 | |
---|
[69] | 814 | int roar_socket_open_fork (int mode, char * host, int port) { |
---|
[1440] | 815 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) |
---|
[3628] | 816 | char * daemonimage; |
---|
[69] | 817 | int socks[2]; |
---|
| 818 | int r; |
---|
| 819 | char fhstr[8]; |
---|
| 820 | |
---|
| 821 | if ( mode == MODE_LISTEN ) |
---|
| 822 | return -1; |
---|
| 823 | |
---|
[3628] | 824 | // TODO: FIXME: we should move this into the config structure. |
---|
| 825 | daemonimage = getenv("ROAR_DAEMONIMAGE"); |
---|
| 826 | |
---|
| 827 | if ( daemonimage == NULL || *daemonimage == 0 ) |
---|
| 828 | daemonimage = "roard"; |
---|
| 829 | |
---|
[69] | 830 | if ( socketpair(AF_UNIX, SOCK_STREAM, 0, socks) == -1 ) { |
---|
| 831 | return -1; |
---|
| 832 | } |
---|
| 833 | |
---|
| 834 | r = fork(); |
---|
| 835 | |
---|
| 836 | if ( r == -1 ) { // error! |
---|
| 837 | ROAR_ERR("roar_socket_open_fork(*): Can not fork: %s", strerror(errno)); |
---|
| 838 | close(socks[0]); |
---|
| 839 | close(socks[1]); |
---|
| 840 | return -1; |
---|
| 841 | } else if ( r == 0 ) { // we are the child |
---|
| 842 | close(socks[0]); |
---|
| 843 | |
---|
[70] | 844 | close(ROAR_STDIN ); // we do not want roard to have any standard input |
---|
| 845 | close(ROAR_STDOUT); // STDOUT is also not needed, so we close it, |
---|
| 846 | // but STDERR we keep open for error messages. |
---|
| 847 | |
---|
[69] | 848 | snprintf(fhstr, 7, "%i", socks[1]); |
---|
| 849 | |
---|
[3628] | 850 | execlp(daemonimage, daemonimage, "--no-listen", "--client-fh", fhstr, (char*)NULL); |
---|
[69] | 851 | |
---|
| 852 | // we are still alive? |
---|
| 853 | ROAR_ERR("roar_socket_open_fork(*): alive after exec(), that's bad!"); |
---|
| 854 | _exit(1); |
---|
| 855 | } else { // we are the parent |
---|
| 856 | close(socks[1]); |
---|
| 857 | return socks[0]; |
---|
| 858 | } |
---|
| 859 | |
---|
| 860 | return -1; |
---|
[1093] | 861 | #else |
---|
| 862 | ROAR_ERR("roar_socket_open_fork(*): There is no UNIX Domain Socket support in win32, download a real OS."); |
---|
| 863 | return -1; |
---|
| 864 | #endif |
---|
[69] | 865 | } |
---|
| 866 | |
---|
[75] | 867 | int roar_socket_open_file (int mode, char * host, int port) { |
---|
[1476] | 868 | #ifdef ROAR_HAVE_IO_POSIX |
---|
[75] | 869 | int fh; |
---|
| 870 | |
---|
| 871 | if ( mode == MODE_LISTEN ) |
---|
| 872 | return -1; |
---|
| 873 | |
---|
| 874 | if ( (fh = open(host, O_RDONLY, 0644)) == -1 ) { |
---|
| 875 | ROAR_ERR("roar_socket_open_file(*): Can not open file %s: %s", host, strerror(errno)); |
---|
| 876 | } |
---|
| 877 | |
---|
| 878 | return fh; |
---|
[1476] | 879 | #else |
---|
| 880 | return -1; |
---|
| 881 | #endif |
---|
[75] | 882 | } |
---|
| 883 | |
---|
[2] | 884 | // --- [ PROXY CODE ] --- |
---|
| 885 | |
---|
[3901] | 886 | #ifndef ROAR_HAVE_IO_POSIX |
---|
| 887 | #ifdef ROAR_SUPPORT_PROXY |
---|
| 888 | #undef ROAR_SUPPORT_PROXY |
---|
| 889 | #endif |
---|
| 890 | #endif |
---|
| 891 | |
---|
[2] | 892 | // generic proxy code: |
---|
| 893 | |
---|
[1087] | 894 | #ifdef ROAR_SUPPORT_PROXY |
---|
[2] | 895 | int roar_socket_open_proxy (int mode, int type, char * host, int port, char * proxy_type) { |
---|
[829] | 896 | int proxy_port = -1; |
---|
[2] | 897 | char proxy_host[ROAR_SOCKET_MAX_HOSTNAMELEN]; |
---|
[829] | 898 | char * proxy_addr = NULL; |
---|
[2] | 899 | int i; |
---|
[829] | 900 | int fh = -1; |
---|
[835] | 901 | char * user = NULL, * pw = NULL, * opts = NULL; |
---|
[836] | 902 | char * sep; |
---|
[838] | 903 | int no_fh = 0; |
---|
[1008] | 904 | char proxy_addr_buf[1024]; |
---|
[835] | 905 | static struct passwd * passwd; |
---|
[834] | 906 | int (* code)(int mode, int fh, char * host, int port, char * user, char * pw, char * opts) = NULL; |
---|
[2] | 907 | |
---|
[835] | 908 | if ( passwd == NULL ) { |
---|
| 909 | passwd = getpwuid(getuid()); |
---|
| 910 | } |
---|
| 911 | |
---|
[3897] | 912 | // TODO: fix this in a good way |
---|
| 913 | #ifndef ROAR_TARGET_MICROCONTROLLER |
---|
[835] | 914 | if ( passwd != NULL ) |
---|
| 915 | user = passwd->pw_name; |
---|
[3897] | 916 | #endif |
---|
[835] | 917 | |
---|
| 918 | if ( user == NULL ) |
---|
| 919 | user = getenv("USER"); |
---|
| 920 | |
---|
[2] | 921 | // TODO: change this so we support listen() proxys (ssh -R) |
---|
| 922 | if ( mode != MODE_CONNECT ) |
---|
| 923 | return -1; |
---|
| 924 | |
---|
[829] | 925 | if ( !strncmp(proxy_type, "socks", 5) ) { |
---|
[2] | 926 | proxy_addr = getenv("socks_proxy"); |
---|
| 927 | |
---|
| 928 | proxy_port = 9050; // TOR's default port |
---|
[832] | 929 | } else if ( !strcmp(proxy_type, "http") || !strcmp(proxy_type, "https") ) { |
---|
[830] | 930 | proxy_port = 8080; |
---|
[2] | 931 | |
---|
[832] | 932 | if ( (proxy_addr = getenv("http_proxy")) == NULL ) |
---|
| 933 | proxy_addr = getenv("https_proxy"); |
---|
| 934 | |
---|
[2] | 935 | if ( proxy_addr == NULL ) |
---|
| 936 | return -1; |
---|
| 937 | |
---|
[830] | 938 | if ( !strncmp(proxy_addr, "http://", 7) ) |
---|
| 939 | proxy_addr += 7; |
---|
[838] | 940 | } else if ( !strncmp(proxy_type, "ssh", 3) ) { |
---|
| 941 | proxy_port = 22; |
---|
| 942 | proxy_addr = getenv("ssh_proxy"); |
---|
| 943 | no_fh = 1; |
---|
[830] | 944 | } |
---|
[2] | 945 | |
---|
[1008] | 946 | proxy_addr_buf[1023] = 0; |
---|
| 947 | strncpy(proxy_addr_buf, proxy_addr, 1023); |
---|
| 948 | proxy_addr = proxy_addr_buf; |
---|
| 949 | |
---|
[837] | 950 | if ( (sep = strstr(proxy_type, "/")) != NULL ) |
---|
| 951 | opts = sep+1; |
---|
| 952 | |
---|
[830] | 953 | if ( proxy_addr == NULL ) |
---|
| 954 | return -1; |
---|
[2] | 955 | |
---|
[836] | 956 | if ( (sep = strstr(proxy_addr, "@")) != NULL ) { |
---|
| 957 | *sep = 0; |
---|
| 958 | user = proxy_addr; |
---|
| 959 | proxy_addr = sep+1; |
---|
| 960 | |
---|
| 961 | if ( (sep = strstr(user, ":")) != NULL ) { |
---|
| 962 | *sep = 0; |
---|
| 963 | pw = sep+1; |
---|
| 964 | } |
---|
| 965 | } |
---|
| 966 | |
---|
[1008] | 967 | ROAR_DBG("roar_socket_open_proxy(*): proxy_type='%s', opts='%s', user='%s', pw=(not shown), proxy_addr='%s'", proxy_type, opts, user, proxy_addr); |
---|
| 968 | |
---|
[4028] | 969 | for (i = 0; proxy_addr[i] != 0 && proxy_addr[i] != ':' && i < (ROAR_SOCKET_MAX_HOSTNAMELEN - 1); i++) |
---|
[830] | 970 | proxy_host[i] = proxy_addr[i]; |
---|
| 971 | proxy_host[i] = 0; |
---|
[2] | 972 | |
---|
[830] | 973 | if ( i == 0 ) // no hostname found |
---|
| 974 | return -1; |
---|
| 975 | |
---|
| 976 | if ( proxy_addr[i] == ':' ) |
---|
| 977 | proxy_port = atoi(&proxy_addr[i+1]); |
---|
| 978 | |
---|
[838] | 979 | if ( ! no_fh ) { |
---|
| 980 | if ( (fh = roar_socket_open(mode, type, proxy_host, proxy_port)) == -1) { |
---|
| 981 | return -1; |
---|
| 982 | } |
---|
[829] | 983 | } |
---|
[2] | 984 | |
---|
[829] | 985 | if ( !strcmp(proxy_type, "socks4a") ) { // for TOR, the only supported type at the moment |
---|
[833] | 986 | code = roar_socket_open_socks4a; |
---|
| 987 | } else if ( !strcmp(proxy_type, "socks4d") ) { // DECnet |
---|
| 988 | code = roar_socket_open_socks4d; |
---|
| 989 | } else if ( !strcmp(proxy_type, "socks4") ) { // good old SOCKS4 |
---|
| 990 | code = roar_socket_open_socks4; |
---|
| 991 | } else if ( !strcmp(proxy_type, "http") ) { // HTTP CONNECT |
---|
| 992 | code = roar_socket_open_http; |
---|
[839] | 993 | } else if ( !strncmp(proxy_type, "ssh", 3) ) { // SSH... |
---|
[1063] | 994 | #ifdef ROAR_HAVE_BIN_SSH |
---|
[839] | 995 | code = roar_socket_open_ssh; |
---|
[1063] | 996 | #else |
---|
| 997 | ROAR_ERR("roar_socket_open_proxy(*): No SSH support compiled in"); |
---|
| 998 | #endif |
---|
[833] | 999 | } else { |
---|
| 1000 | return -1; // unknown type |
---|
| 1001 | } |
---|
[2] | 1002 | |
---|
[833] | 1003 | if ( code != NULL ) { |
---|
[838] | 1004 | if ( no_fh ) { |
---|
| 1005 | fh = code(mode, fh, host, port, user, pw, opts); |
---|
| 1006 | } else { |
---|
| 1007 | if ( code(mode, fh, host, port, user, pw, opts) == -1 ) { |
---|
| 1008 | close(fh); |
---|
| 1009 | return -1; |
---|
| 1010 | } |
---|
[829] | 1011 | } |
---|
| 1012 | |
---|
| 1013 | return fh; |
---|
[833] | 1014 | } |
---|
[829] | 1015 | |
---|
[833] | 1016 | close(fh); |
---|
| 1017 | return -1; |
---|
[2] | 1018 | } |
---|
| 1019 | |
---|
| 1020 | // protocoll dependet proxy code: |
---|
| 1021 | |
---|
[834] | 1022 | int roar_socket_open_socks4 (int mode, int fh, char * host, int port, char * user, char * pw, char * opts) { |
---|
[3897] | 1023 | #ifndef ROAR_TARGET_MICROCONTROLLER |
---|
[829] | 1024 | struct hostent * he; |
---|
| 1025 | |
---|
| 1026 | if ( (he = gethostbyname(host)) == NULL ) { |
---|
| 1027 | ROAR_ERR("roar_socket_open_socks4(*): Can\'t resolve host name '%s'", host); |
---|
| 1028 | return -1; |
---|
| 1029 | } |
---|
| 1030 | |
---|
[834] | 1031 | return roar_socket_open_socks4x(mode, fh, he->h_addr, port, NULL, 0, user); |
---|
[3897] | 1032 | #else |
---|
| 1033 | return -1; |
---|
| 1034 | #endif |
---|
[829] | 1035 | } |
---|
| 1036 | |
---|
[834] | 1037 | int roar_socket_open_socks4a(int mode, int fh, char * host, int port, char * user, char * pw, char * opts) { |
---|
| 1038 | return roar_socket_open_socks4x(mode, fh, "\0\0\0\1", port, host, strlen(host)+1, user); |
---|
[829] | 1039 | } |
---|
| 1040 | |
---|
[834] | 1041 | int roar_socket_open_socks4d(int mode, int fh, char * host, int port, char * user, char * pw, char * opts) { |
---|
[829] | 1042 | size_t len = strlen(host)+1; |
---|
| 1043 | char * dp; |
---|
| 1044 | |
---|
| 1045 | if ( port == 0 ) { |
---|
| 1046 | if ( (dp = strstr(host, "::")) == NULL ) |
---|
| 1047 | return -1; |
---|
| 1048 | |
---|
| 1049 | len--; |
---|
| 1050 | *dp = 0; |
---|
| 1051 | memmove(dp+1, dp+2, len - (dp-host) - 1); |
---|
| 1052 | } |
---|
| 1053 | |
---|
[834] | 1054 | return roar_socket_open_socks4x(mode, fh, "\0\2\0\0", port, host, len, user); |
---|
[829] | 1055 | } |
---|
| 1056 | |
---|
[834] | 1057 | int roar_socket_open_socks4x(int mode, int fh, char host[4], int port, char * app, size_t app_len, char * user) { |
---|
[2] | 1058 | char buf[9]; |
---|
[835] | 1059 | int len; |
---|
[2] | 1060 | |
---|
| 1061 | buf[0] = 0x04; |
---|
| 1062 | buf[1] = mode == MODE_CONNECT ? 0x01 : 0x02; |
---|
| 1063 | *((uint16_t*)&buf[2]) = htons(port); |
---|
[829] | 1064 | memcpy(buf+4, host, 4); |
---|
[835] | 1065 | |
---|
| 1066 | if ( user == NULL ) { |
---|
| 1067 | buf[8] = 0x00; |
---|
| 1068 | len = 9; |
---|
| 1069 | } else { |
---|
| 1070 | len = 8; |
---|
| 1071 | } |
---|
[2] | 1072 | |
---|
[835] | 1073 | if ( write(fh, buf, len) != len ) |
---|
[2] | 1074 | return -1; |
---|
| 1075 | |
---|
[835] | 1076 | if ( user != NULL ) { |
---|
| 1077 | len = strlen(user) + 1; |
---|
| 1078 | if ( write(fh, user, len) != len ) |
---|
| 1079 | return -1; |
---|
| 1080 | } |
---|
| 1081 | |
---|
[829] | 1082 | if ( app_len > 0 ) |
---|
| 1083 | if ( write(fh, app, app_len) != app_len ) |
---|
| 1084 | return -1; |
---|
[2] | 1085 | |
---|
| 1086 | if ( read(fh, buf, 8) != 8 ) |
---|
| 1087 | return -1; |
---|
| 1088 | |
---|
| 1089 | if ( buf[1] != 0x5a ) |
---|
| 1090 | return -1; |
---|
| 1091 | |
---|
| 1092 | return 0; |
---|
| 1093 | } |
---|
| 1094 | |
---|
[834] | 1095 | int roar_socket_open_http (int mode, int fh, char * host, int port, char * user, char * pw, char * opts) { |
---|
[831] | 1096 | char buf[1024]; |
---|
| 1097 | int len; |
---|
| 1098 | |
---|
| 1099 | if ( port == 0 || host == NULL ) |
---|
| 1100 | return -1; |
---|
| 1101 | |
---|
| 1102 | if ( *host == '/' ) // AF_UNIX |
---|
| 1103 | return -1; |
---|
| 1104 | |
---|
| 1105 | if ( (len = snprintf(buf, 1024, "CONNECT %s:%i HTTP/1.0\r\nUser-Agent: libroar\r\n\r\n", host, port)) == -1 ) |
---|
| 1106 | return -1; |
---|
| 1107 | |
---|
| 1108 | if ( write(fh, buf, len) != len ) |
---|
| 1109 | return -1; |
---|
| 1110 | |
---|
| 1111 | while ( (len = read(fh, buf, 1024)) ) { |
---|
| 1112 | if ( len == 1024 ) { // overlong lion |
---|
| 1113 | return -1; |
---|
| 1114 | } else if ( len == 2 && buf[0] == '\r' && buf[1] == '\n' ) { |
---|
| 1115 | break; |
---|
| 1116 | } else if ( len == 1 && (buf[0] == '\r' || buf[0] == '\n') ) { // bad proxy or devel trying to debug ;) |
---|
| 1117 | break; |
---|
| 1118 | } else if ( len >= 4 && buf[len-4] == '\r' && buf[len-3] == '\n' && buf[len-2] == '\r' && buf[len-1] == '\n' ) { |
---|
| 1119 | break; |
---|
| 1120 | } |
---|
| 1121 | } |
---|
| 1122 | |
---|
| 1123 | return 0; |
---|
[830] | 1124 | } |
---|
| 1125 | |
---|
[839] | 1126 | |
---|
[1063] | 1127 | #ifdef ROAR_HAVE_BIN_SSH |
---|
[839] | 1128 | int roar_socket_open_ssh (int mode, int fh, char * host, int port, char * user, char * pw, char * opts) { |
---|
| 1129 | char * proxy_addr = getenv("ssh_proxy"); |
---|
| 1130 | char * sep; |
---|
| 1131 | char cmd[1024] = {0}, rcmd[1024] = {0}; |
---|
| 1132 | int proxy_port = 22; |
---|
[840] | 1133 | int use_socat = 0; |
---|
[839] | 1134 | int r; |
---|
| 1135 | int socks[2]; |
---|
| 1136 | |
---|
| 1137 | if ( host == NULL ) |
---|
| 1138 | return -1; |
---|
| 1139 | |
---|
| 1140 | if ( *host == '/' ) |
---|
[840] | 1141 | use_socat = 1; |
---|
[839] | 1142 | |
---|
| 1143 | if ( mode == MODE_LISTEN ) |
---|
| 1144 | return -1; |
---|
| 1145 | |
---|
| 1146 | if ( proxy_addr == NULL ) |
---|
| 1147 | return -1; |
---|
| 1148 | |
---|
[840] | 1149 | if ( opts != NULL ) { |
---|
| 1150 | if ( !strcmp(opts, "socat") ) { |
---|
| 1151 | use_socat = 1; |
---|
| 1152 | } else if ( !strcmp(opts, "netcat") ) { |
---|
| 1153 | use_socat = 0; |
---|
| 1154 | } else { |
---|
| 1155 | return -1; |
---|
| 1156 | } |
---|
| 1157 | } |
---|
| 1158 | |
---|
[1008] | 1159 | ROAR_DBG("roar_socket_open_ssh(*): proxy_addr='%s'", proxy_addr); |
---|
| 1160 | |
---|
[839] | 1161 | if ( (sep = strstr(proxy_addr, "@")) != NULL ) |
---|
| 1162 | proxy_addr = sep+1; |
---|
| 1163 | |
---|
| 1164 | if ( (sep = strstr(proxy_addr, ":")) != NULL ) { |
---|
| 1165 | *sep = 0; |
---|
| 1166 | proxy_port = atoi(sep+1); |
---|
| 1167 | } |
---|
| 1168 | |
---|
| 1169 | |
---|
| 1170 | if ( !strcmp(host, "+fork") ) { |
---|
[1068] | 1171 | strncpy(rcmd, "roard --no-listen --client-fh 0", 32); |
---|
[839] | 1172 | } else { |
---|
[840] | 1173 | if ( use_socat ) { |
---|
| 1174 | if ( *host == '/' ) { |
---|
| 1175 | snprintf(rcmd, 1023, "socat stdio unix-connect:\"%s\"", host); |
---|
| 1176 | } else { |
---|
| 1177 | snprintf(rcmd, 1023, "socat stdio tcp:\"%s\":%i", host, port); |
---|
| 1178 | } |
---|
| 1179 | } else { |
---|
| 1180 | snprintf(rcmd, 1023, "$(which netcat nc 2> /dev/null | grep -v \" \" | head -n 1) \"%s\" %i", host, port); |
---|
| 1181 | } |
---|
| 1182 | |
---|
[839] | 1183 | rcmd[1023] = 0; |
---|
| 1184 | } |
---|
| 1185 | |
---|
[1008] | 1186 | ROAR_DBG("roar_socket_open_ssh(*): proxy_port=%i, user='%s', proxy_addr='%s'", proxy_port, user, proxy_addr); |
---|
[1033] | 1187 | ROAR_DBG("roar_socket_open_ssh(*): rcmd: %s", rcmd); |
---|
[1063] | 1188 | snprintf(cmd, 1023, ROAR_HAVE_BIN_SSH " -p %i -l '%s' '%s' '%s'", proxy_port, user, proxy_addr, rcmd); |
---|
[839] | 1189 | cmd[1023] = 0; |
---|
| 1190 | |
---|
| 1191 | |
---|
[3897] | 1192 | // TODO: get this more portable! |
---|
| 1193 | #ifdef AF_UNIX |
---|
[839] | 1194 | if ( socketpair(AF_UNIX, SOCK_STREAM, 0, socks) == -1 ) { |
---|
| 1195 | return -1; |
---|
| 1196 | } |
---|
[3897] | 1197 | #else |
---|
| 1198 | return -1; |
---|
| 1199 | #endif |
---|
[839] | 1200 | |
---|
| 1201 | r = fork(); |
---|
| 1202 | |
---|
| 1203 | if ( r == -1 ) { // error! |
---|
| 1204 | ROAR_ERR("roar_socket_open_ssh(*): Can not fork: %s", strerror(errno)); |
---|
| 1205 | close(socks[0]); |
---|
| 1206 | close(socks[1]); |
---|
| 1207 | return -1; |
---|
| 1208 | } else if ( r == 0 ) { // we are the child |
---|
| 1209 | close(socks[0]); |
---|
| 1210 | |
---|
| 1211 | close(ROAR_STDIN ); // we do not want roard to have any standard input |
---|
| 1212 | close(ROAR_STDOUT); // STDOUT is also not needed, so we close it, |
---|
| 1213 | // but STDERR we keep open for error messages. |
---|
| 1214 | |
---|
| 1215 | dup2(socks[1], 0); |
---|
| 1216 | dup2(socks[1], 1); |
---|
| 1217 | |
---|
[1652] | 1218 | execlp("sh", "sh", "-c", cmd, (char*)NULL); |
---|
[839] | 1219 | |
---|
| 1220 | // we are still alive? |
---|
| 1221 | ROAR_ERR("roar_socket_open_ssh(*): alive after exec(), that's bad!"); |
---|
| 1222 | _exit(1); |
---|
| 1223 | } else { // we are the parent |
---|
| 1224 | close(socks[1]); |
---|
| 1225 | return socks[0]; |
---|
| 1226 | } |
---|
| 1227 | return -1; |
---|
| 1228 | } |
---|
[1063] | 1229 | #endif |
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[839] | 1230 | |
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[1087] | 1231 | #endif // ROAR_SUPPORT_PROXY |
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| 1232 | |
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[0] | 1233 | //ll |
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