[0] | 1 | //socket.c: |
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| 2 | |
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[690] | 3 | /* |
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[5381] | 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2012 |
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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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[5375] | 42 | static int roar_socket_open_file (int mode, const char * host, int port); |
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| 43 | static int roar_socket_open_proxy (int mode, int type, const char * host, int port, const char * proxy_type); |
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| 44 | |
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| 45 | static int roar_socket_open_socks4 (int mode, int fh, const char * host, int port, const char * user, const char * pw, const char * opts); |
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| 46 | static int roar_socket_open_socks4a(int mode, int fh, const char * host, int port, const char * user, const char * pw, const char * opts); |
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| 47 | static int roar_socket_open_socks4d(int mode, int fh, const char * host, int port, const char * user, const char * pw, const char * opts); |
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| 48 | static int roar_socket_open_socks4x(int mode, int fh, char host[4], int port, const char * app, size_t app_len, const char * user); |
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| 49 | |
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| 50 | static int roar_socket_open_http (int mode, int fh, const char * host, int port, const char * user, const char * pw, const char * opts); |
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| 51 | |
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| 52 | static int roar_socket_open_ssh (int mode, int fh, const char * host, int port, const char * user, const char * pw, const char * opts); |
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| 53 | |
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| 54 | |
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[1761] | 55 | #ifdef ROAR_TARGET_WIN32 |
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| 56 | void roar_socket_win32_init (void) { |
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| 57 | static int inited = 0; |
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| 58 | WSADATA wsadata; |
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| 59 | |
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| 60 | if ( !inited ) { |
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| 61 | WSAStartup(MAKEWORD(1,1) , &wsadata); |
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| 62 | inited++; |
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| 63 | } |
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| 64 | } |
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| 65 | #else |
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| 66 | #define roar_socket_win32_init() |
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| 67 | #endif |
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| 68 | |
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[5376] | 69 | static int roar_socket_decnet_set_timeout (int fh, time_t sec, int_least32_t usec) { |
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[873] | 70 | #ifdef ROAR_HAVE_LIBDNET |
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| 71 | struct timeval timeout = {sec, usec}; |
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| 72 | |
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| 73 | return setsockopt(fh, SOL_SOCKET, SO_SNDTIMEO, &timeout, sizeof(timeout)); |
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| 74 | #else |
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| 75 | return -1; |
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| 76 | #endif |
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| 77 | } |
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| 78 | |
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[5375] | 79 | static int roar_socket_set_tos(int fh) { |
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[5210] | 80 | #if defined(ROAR_HAVE_BSDSOCKETS) && !defined(ROAR_TARGET_WIN32) |
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[5113] | 81 | int opt = IPTOS_LOWDELAY; |
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| 82 | int ret; |
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| 83 | |
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| 84 | roar_err_clear_errno(); |
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| 85 | ret = setsockopt(fh, IPPROTO_IP, IP_TOS, &opt, sizeof(int)); |
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| 86 | if ( ret < 0 ) |
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| 87 | roar_err_from_errno(); |
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| 88 | |
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| 89 | return ret; |
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| 90 | #else |
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[5375] | 91 | roar_err_set(ROAR_ERROR_NOSYS); |
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[5113] | 92 | return -1; |
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| 93 | #endif |
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| 94 | } |
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| 95 | |
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[5248] | 96 | #if 0 |
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| 97 | static int roar_socket_new_decnet_seqpacket (void) { |
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[508] | 98 | #ifdef ROAR_HAVE_LIBDNET |
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| 99 | int fh; |
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| 100 | |
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| 101 | fh = socket(AF_DECnet, SOCK_SEQPACKET, DNPROTO_NSP); |
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| 102 | |
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[873] | 103 | roar_socket_decnet_set_timeout(fh, 300, 0); |
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| 104 | |
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[508] | 105 | return fh; |
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| 106 | #else |
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| 107 | return -1; |
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| 108 | #endif |
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| 109 | } |
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[5248] | 110 | #endif |
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[508] | 111 | |
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| 112 | |
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[5248] | 113 | #if 0 |
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| 114 | static int roar_socket_new_ipxspx (void) { |
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| 115 | return -1; |
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| 116 | } |
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| 117 | #endif |
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| 118 | |
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| 119 | int roar_socket_new (int type) { |
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| 120 | int sys_domain = -1, sys_type = -1, sys_protocol = 0; |
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[508] | 121 | int fh; |
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[5248] | 122 | #if defined(ROAR_HAVE_IPV4) && defined(TCP_NODELAY) && !defined(ROAR_TARGET_WIN32) |
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| 123 | int t = 1; |
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| 124 | #endif |
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[508] | 125 | |
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[5248] | 126 | switch (type) { |
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| 127 | case ROAR_SOCKET_TYPE_NONE: |
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| 128 | case ROAR_SOCKET_TYPE_GENSTR: |
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| 129 | roar_err_set(ROAR_ERROR_INVAL); |
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| 130 | return -1; |
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| 131 | break; |
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| 132 | case ROAR_SOCKET_TYPE_FILE: |
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| 133 | case ROAR_SOCKET_TYPE_FORK: |
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| 134 | roar_err_set(ROAR_ERROR_PERM); |
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| 135 | return -1; |
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| 136 | break; |
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| 137 | #ifdef ROAR_HAVE_IPV4 |
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| 138 | case ROAR_SOCKET_TYPE_TCP: |
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| 139 | sys_domain = AF_INET; sys_type = SOCK_STREAM; |
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| 140 | break; |
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| 141 | case ROAR_SOCKET_TYPE_UDP: |
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| 142 | sys_domain = AF_INET; sys_type = SOCK_DGRAM; |
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| 143 | break; |
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| 144 | #endif |
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| 145 | #ifdef ROAR_HAVE_UNIX |
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| 146 | case ROAR_SOCKET_TYPE_UNIX: |
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| 147 | sys_domain = AF_UNIX; sys_type = SOCK_STREAM; |
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| 148 | break; |
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| 149 | #endif |
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| 150 | #ifdef ROAR_HAVE_LIBDNET |
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| 151 | case ROAR_SOCKET_TYPE_DECNET: |
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| 152 | sys_domain = AF_DECnet; sys_type = SOCK_STREAM; sys_protocol = DNPROTO_NSP; |
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| 153 | break; |
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| 154 | #endif |
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| 155 | #ifdef ROAR_HAVE_IPV6 |
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| 156 | case ROAR_SOCKET_TYPE_TCP6: |
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| 157 | sys_domain = AF_INET6; sys_type = SOCK_STREAM; |
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| 158 | break; |
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| 159 | case ROAR_SOCKET_TYPE_UDP6: |
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| 160 | sys_domain = AF_INET6; sys_type = SOCK_DGRAM; |
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| 161 | break; |
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| 162 | #endif |
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| 163 | #ifdef ROAR_HAVE_IPX |
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| 164 | case ROAR_SOCKET_TYPE_IPX: |
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| 165 | sys_domain = AF_IPX; sys_type = SOCK_DGRAM; sys_protocol = AF_IPX; |
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| 166 | break; |
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| 167 | #endif |
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| 168 | case ROAR_SOCKET_TYPE_IPXSPX: |
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| 169 | case ROAR_SOCKET_TYPE_LAT_SERVICE: |
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| 170 | case ROAR_SOCKET_TYPE_LAT_REVERSE_PORT: |
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| 171 | default: |
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| 172 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
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| 173 | return -1; |
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| 174 | break; |
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| 175 | } |
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[508] | 176 | |
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[5248] | 177 | roar_socket_win32_init(); |
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| 178 | |
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| 179 | roar_err_clear_all(); |
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| 180 | fh = socket(sys_domain, sys_type, sys_protocol); |
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| 181 | if ( fh == -1 ) { |
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| 182 | roar_err_update(); |
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| 183 | return -1; |
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| 184 | } |
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| 185 | |
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| 186 | // do the extra work we need to do for some socket types: |
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| 187 | switch (type) { |
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| 188 | #ifdef ROAR_HAVE_IPV4 |
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| 189 | case ROAR_SOCKET_TYPE_TCP: |
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| 190 | #if defined(TCP_NODELAY) && !defined(ROAR_TARGET_WIN32) |
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| 191 | setsockopt(fh, IPPROTO_TCP, TCP_NODELAY, &t, sizeof(int)); |
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| 192 | #endif |
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| 193 | case ROAR_SOCKET_TYPE_UDP: |
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| 194 | #endif |
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| 195 | #ifdef ROAR_HAVE_IPV6 |
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| 196 | case ROAR_SOCKET_TYPE_TCP6: |
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| 197 | case ROAR_SOCKET_TYPE_UDP6: |
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| 198 | #endif |
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| 199 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) |
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| 200 | roar_socket_set_tos(fh); |
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| 201 | break; |
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| 202 | #endif |
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| 203 | #ifdef ROAR_HAVE_LIBDNET |
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| 204 | case ROAR_SOCKET_TYPE_DECNET: |
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| 205 | roar_socket_decnet_set_timeout(fh, 300, 0); |
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| 206 | break; |
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| 207 | #endif |
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| 208 | } |
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[873] | 209 | |
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[508] | 210 | return fh; |
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[530] | 211 | } |
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| 212 | |
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| 213 | |
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[0] | 214 | int roar_socket_nonblock(int fh, int state) { |
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[4554] | 215 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) && defined(ROAR_HAVE_FCNTL) |
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[0] | 216 | int flags; |
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| 217 | |
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| 218 | if ( (flags = fcntl(fh, F_GETFL, 0)) == -1 ) { |
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[5148] | 219 | roar_err_from_errno(); |
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[0] | 220 | ROAR_ERR("roar_socket_nonblock(fh=%i, state=%i): Can not read flags: %s", fh, state, strerror(errno)); |
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| 221 | ROAR_DBG("roar_socket_nonblock(fh=%i, state=%i) = -1", fh, state); |
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| 222 | return -1; |
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| 223 | } |
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| 224 | |
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[1119] | 225 | if ( !(flags & O_NONBLOCK) && state == ROAR_SOCKET_BLOCK ) |
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| 226 | return 0; |
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| 227 | |
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[0] | 228 | flags |= O_NONBLOCK; |
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| 229 | |
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| 230 | if ( state == ROAR_SOCKET_BLOCK ) |
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| 231 | flags -= O_NONBLOCK; |
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| 232 | |
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| 233 | if ( fcntl(fh, F_SETFL, flags) == -1 ) { |
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[5148] | 234 | roar_err_from_errno(); |
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[0] | 235 | ROAR_ERR("roar_socket_nonblock(fh=%i, state=%i): Can not set flags: %s", fh, state, strerror(errno)); |
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| 236 | ROAR_DBG("roar_socket_nonblock(fh=%i, state=%i) = -1", fh, state); |
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| 237 | return -1; |
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| 238 | } |
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| 239 | |
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| 240 | ROAR_DBG("roar_socket_nonblock(fh=%i, state=%i) = 0", fh, state); |
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| 241 | return 0; |
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[1085] | 242 | #else |
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| 243 | ROAR_WARN("roar_socket_nonblock(*): no nonblocking IO support on win32, use a real OS"); |
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| 244 | return -1; |
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| 245 | #endif |
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[0] | 246 | } |
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| 247 | |
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[375] | 248 | int roar_socket_dup_udp_local_end (int fh) { |
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[4554] | 249 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) && defined(ROAR_HAVE_FCNTL) |
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[376] | 250 | int n = -1; |
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| 251 | int flags = -1; |
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| 252 | struct sockaddr_in socket_addr; |
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| 253 | socklen_t len = sizeof(struct sockaddr_in); |
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| 254 | |
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| 255 | if ( (flags = fcntl(fh, F_GETFL, 0)) == -1 ) { |
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| 256 | ROAR_WARN("roar_socket_dup_udp_local_end(fh=%i): Can not read flags: %s", fh, strerror(errno)); |
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| 257 | } |
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| 258 | |
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| 259 | if ( getsockname(fh, (struct sockaddr *)&socket_addr, &len) == -1 ) { |
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[5148] | 260 | roar_err_from_errno(); |
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[376] | 261 | return -1; |
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| 262 | } |
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| 263 | |
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| 264 | if ( socket_addr.sin_family != AF_INET ) { |
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[5148] | 265 | roar_err_set(ROAR_ERROR_TYPEMM); |
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[376] | 266 | return -1; |
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| 267 | } |
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| 268 | |
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[5248] | 269 | n = roar_socket_new(ROAR_SOCKET_TYPE_UDP); |
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[376] | 270 | |
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| 271 | if ( n == -1 ) |
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| 272 | return -1; |
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| 273 | |
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| 274 | // if ( mode_func(fh, (struct sockaddr *)&socket_addr, sizeof(struct sockaddr_in)) == -1 ) { |
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| 275 | if ( bind(n, (struct sockaddr *)&socket_addr, len) == -1 ) { |
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[5148] | 276 | roar_err_from_errno(); |
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[376] | 277 | close(n); |
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| 278 | return -1; |
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| 279 | } |
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| 280 | |
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| 281 | if ( flags != -1 ) { |
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| 282 | if ( fcntl(fh, F_SETFL, flags) == -1 ) { |
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| 283 | ROAR_WARN("roar_socket_dup_udp_local_end(fh=%i): Can not set flags: %s", fh, strerror(errno)); |
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| 284 | return -1; |
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| 285 | } |
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| 286 | } |
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| 287 | |
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| 288 | |
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| 289 | return n; |
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[1085] | 290 | #else |
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| 291 | ROAR_WARN("roar_socket_dup_udp_local_end(*): this function is not supported on win32, use a real OS"); |
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| 292 | return -1; |
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| 293 | #endif |
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[375] | 294 | } |
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| 295 | |
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[753] | 296 | |
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| 297 | #define _SCMR_CONTROLLEN (sizeof(struct cmsghdr) + sizeof(int)) |
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| 298 | int roar_socket_send_fh (int sock, int fh, char * mes, size_t len) { |
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[4554] | 299 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) && !defined(ROAR_OS_SUNOS) && !defined(ROAR_TARGET_OPENVMS) |
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[753] | 300 | struct iovec iov[1]; |
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| 301 | struct msghdr msg; |
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| 302 | char cmptr_buf[_SCMR_CONTROLLEN]; |
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| 303 | struct cmsghdr * cmptr = (struct cmsghdr *) cmptr_buf; |
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[754] | 304 | char localmes[1] = {0}; |
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[753] | 305 | |
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[759] | 306 | ROAR_DBG("roar_socket_send_fh(sock=%i, fh=%i, mes=%p, len=%u) = ?", sock, fh, mes, len); |
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| 307 | |
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[754] | 308 | if ( sock < 0 || fh < 0 ) |
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[753] | 309 | return -1; |
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| 310 | |
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[754] | 311 | if ( len == 0 ) { |
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| 312 | len = 1; |
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| 313 | mes = localmes; |
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| 314 | } |
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| 315 | |
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| 316 | memset(cmptr, 0, _SCMR_CONTROLLEN); |
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| 317 | |
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[753] | 318 | iov[0].iov_base = mes; |
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| 319 | iov[0].iov_len = len; |
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| 320 | msg.msg_iov = iov; |
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| 321 | msg.msg_iovlen = 1; |
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| 322 | msg.msg_name = NULL; |
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| 323 | msg.msg_namelen = 0; |
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| 324 | |
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| 325 | cmptr->cmsg_level = SOL_SOCKET; |
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| 326 | cmptr->cmsg_type = SCM_RIGHTS; |
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| 327 | cmptr->cmsg_len = _SCMR_CONTROLLEN; |
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| 328 | msg.msg_control = (caddr_t) cmptr; |
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| 329 | msg.msg_controllen = _SCMR_CONTROLLEN; |
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| 330 | *(int *)CMSG_DATA(cmptr) = fh; |
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| 331 | |
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| 332 | return sendmsg(sock, &msg, 0); |
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[1085] | 333 | #else |
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| 334 | ROAR_ERR("roar_socket_send_fh(*): There is no UNIX Domain Socket support in win32, download a real OS."); |
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| 335 | return -1; |
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| 336 | #endif |
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[753] | 337 | } |
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| 338 | |
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| 339 | int roar_socket_recv_fh (int sock, char * mes, size_t * len) { |
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[4554] | 340 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) && !defined(ROAR_OS_SUNOS) && !defined(ROAR_TARGET_OPENVMS) |
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[753] | 341 | struct iovec iov[1]; |
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| 342 | struct msghdr msg; |
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| 343 | char cmptr_buf[_SCMR_CONTROLLEN]; |
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| 344 | struct cmsghdr * cmptr = (struct cmsghdr *) cmptr_buf; |
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[754] | 345 | char localmes[1]; |
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| 346 | size_t locallen[1] = {1}; |
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[753] | 347 | |
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[4256] | 348 | ROAR_DBG("roar_socket_recv_fh(sock=%i, mes=%p, len=%p) = ?", sock, mes, len); |
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| 349 | |
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| 350 | if ( sock < 0 ) { |
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| 351 | ROAR_DBG("roar_socket_recv_fh(sock=%i, mes=%p, len=%p) = -1 // invalid socket", sock, mes, len); |
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[753] | 352 | return -1; |
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[4256] | 353 | } |
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[753] | 354 | |
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[754] | 355 | if ( len == NULL ) { |
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| 356 | len = locallen; |
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| 357 | mes = localmes; |
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| 358 | } |
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| 359 | |
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[753] | 360 | iov[0].iov_base = mes; |
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| 361 | iov[0].iov_len = *len; |
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| 362 | msg.msg_iov = iov; |
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| 363 | msg.msg_iovlen = 1; |
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| 364 | msg.msg_name = NULL; |
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| 365 | msg.msg_namelen = 0; |
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| 366 | |
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| 367 | msg.msg_control = (caddr_t) cmptr; |
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| 368 | msg.msg_controllen = _SCMR_CONTROLLEN; |
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| 369 | |
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[4256] | 370 | if ( (*len = recvmsg(sock, &msg, 0)) == -1 ) { |
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| 371 | 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] | 372 | return -1; |
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[4256] | 373 | } |
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[753] | 374 | |
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[4257] | 375 | if ( msg.msg_controllen < _SCMR_CONTROLLEN || |
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| 376 | cmptr->cmsg_len != _SCMR_CONTROLLEN ) { |
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[4256] | 377 | 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] | 378 | return -1; |
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[4256] | 379 | } |
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[753] | 380 | |
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[4256] | 381 | 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] | 382 | return *(int *)CMSG_DATA(cmptr); |
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[1085] | 383 | #else |
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| 384 | ROAR_ERR("roar_socket_recv_fh(*): There is no UNIX Domain Socket support in win32, download a real OS."); |
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| 385 | return -1; |
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| 386 | #endif |
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[753] | 387 | } |
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| 388 | |
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[5260] | 389 | int roar_socket_listen (int type, const char * host, int port) { |
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[0] | 390 | return roar_socket_open(MODE_LISTEN, type, host, port); |
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| 391 | } |
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| 392 | |
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[5375] | 393 | int roar_socket_connect (int type, const char * host, int port) { |
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[2] | 394 | char * proxy_type = getenv("ROAR_PROXY"); |
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| 395 | |
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[4692] | 396 | ROAR_DBG("roar_socket_connect(host='%s', port=%i) = ?", host, port); |
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| 397 | |
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[2] | 398 | if ( proxy_type == NULL || strcmp(proxy_type, "") == 0 ) { |
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[5375] | 399 | return roar_socket_open(MODE_CONNECT, type, host, port); |
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[2] | 400 | } else { |
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[1087] | 401 | #ifdef ROAR_SUPPORT_PROXY |
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[5375] | 402 | return roar_socket_open_proxy(MODE_CONNECT, type, host, port, proxy_type); |
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[1087] | 403 | #else |
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| 404 | 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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| 405 | return -1; |
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| 406 | #endif |
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[2] | 407 | } |
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[0] | 408 | } |
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| 409 | |
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[508] | 410 | |
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[5376] | 411 | static int roar_socket_listen_decnet (const char * object, int num) { |
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[508] | 412 | #ifdef ROAR_HAVE_LIBDNET |
---|
[5248] | 413 | int fh = roar_socket_new(ROAR_SOCKET_TYPE_DECNET); |
---|
[508] | 414 | struct sockaddr_dn bind_sockaddr; |
---|
| 415 | |
---|
| 416 | if ( fh == -1 ) |
---|
| 417 | return -1; |
---|
| 418 | |
---|
[5376] | 419 | if ( object != NULL && !*object ) |
---|
[508] | 420 | object = NULL; |
---|
| 421 | |
---|
[5376] | 422 | if ( (object != NULL && num) || (object != NULL && !*object && !num) || (object == NULL && !num) ) { |
---|
[508] | 423 | ROAR_WARN("roar_socket_listen_decnet(object='%s', num=%i): illegal address!", object, num); |
---|
| 424 | close(fh); |
---|
[5376] | 425 | roar_err_set(ROAR_ERROR_INVAL); |
---|
[508] | 426 | return -1; |
---|
| 427 | } |
---|
| 428 | |
---|
| 429 | memset((void*)&bind_sockaddr, 0, sizeof(struct sockaddr_dn)); |
---|
| 430 | |
---|
| 431 | bind_sockaddr.sdn_family = AF_DECnet; |
---|
| 432 | bind_sockaddr.sdn_flags = 0; |
---|
| 433 | bind_sockaddr.sdn_objnum = num; |
---|
| 434 | |
---|
| 435 | if ( num ) { |
---|
| 436 | bind_sockaddr.sdn_objnamel = 0; |
---|
| 437 | } else { |
---|
[4073] | 438 | bind_sockaddr.sdn_objnamel = ROAR_HOST2LE16(strlen(object)); |
---|
[1068] | 439 | if ( bind_sockaddr.sdn_objnamel > DN_MAXOBJL ) |
---|
| 440 | bind_sockaddr.sdn_objnamel = DN_MAXOBJL; |
---|
| 441 | strncpy((char*)bind_sockaddr.sdn_objname, object, DN_MAXOBJL); |
---|
[508] | 442 | } |
---|
| 443 | |
---|
| 444 | if ( bind(fh, (struct sockaddr *) &bind_sockaddr, sizeof(bind_sockaddr)) == -1 ) { |
---|
[5376] | 445 | roar_err_from_errno(); |
---|
[508] | 446 | close(fh); |
---|
| 447 | return -1; |
---|
| 448 | } |
---|
| 449 | |
---|
| 450 | if ( listen(fh, 8) == -1 ) { |
---|
[5376] | 451 | roar_err_from_errno(); |
---|
[508] | 452 | close(fh); |
---|
| 453 | return -1; |
---|
| 454 | } |
---|
| 455 | |
---|
| 456 | return fh; |
---|
| 457 | #else |
---|
[5376] | 458 | roar_err_set(ROAR_ERROR_NOSYS); |
---|
[508] | 459 | return -1; |
---|
| 460 | #endif |
---|
| 461 | } |
---|
| 462 | |
---|
[5121] | 463 | const char * roar_socket_get_local_nodename(void) { |
---|
[521] | 464 | #ifdef ROAR_HAVE_LIBDNET |
---|
| 465 | static char node[16] = {0}; |
---|
| 466 | struct dn_naddr *binaddr; |
---|
| 467 | struct nodeent *dp; |
---|
| 468 | |
---|
| 469 | if ( !node[0] ) { |
---|
[5376] | 470 | |
---|
| 471 | // TODO: This does this function not use getnodename()? |
---|
| 472 | |
---|
| 473 | // Those strange workarounds for the error codes are because those functions currently |
---|
| 474 | // don't set errno. This way we will use errno as soon as it starts to set it. |
---|
[521] | 475 | |
---|
[5376] | 476 | roar_err_update(); |
---|
| 477 | if ( (binaddr=getnodeadd()) == NULL) { |
---|
| 478 | roar_err_update(); |
---|
| 479 | if ( roar_error == ROAR_ERROR_NONE ) |
---|
| 480 | roar_err_set(ROAR_ERROR_NOENT); |
---|
[521] | 481 | return NULL; |
---|
[5376] | 482 | } |
---|
| 483 | |
---|
| 484 | roar_err_update(); |
---|
| 485 | if ( (dp=getnodebyaddr((char*)binaddr->a_addr, binaddr->a_len, AF_DECnet)) == NULL ) { |
---|
| 486 | roar_err_update(); |
---|
| 487 | if ( roar_error == ROAR_ERROR_NONE ) |
---|
| 488 | roar_err_set(ROAR_ERROR_NOENT); |
---|
| 489 | return NULL; |
---|
| 490 | } |
---|
[521] | 491 | |
---|
| 492 | strncpy(node, dp->n_name, 15); |
---|
| 493 | node[15] = 0; |
---|
| 494 | } |
---|
| 495 | |
---|
| 496 | return node; |
---|
| 497 | #else |
---|
[5376] | 498 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
---|
[521] | 499 | return NULL; |
---|
| 500 | #endif |
---|
| 501 | } |
---|
| 502 | |
---|
[5260] | 503 | int roar_socket_open (int mode, int type, const char * host, int port) { |
---|
[0] | 504 | // int type = ROAR_SOCKET_TYPE_INET; |
---|
| 505 | int fh; |
---|
[531] | 506 | #ifdef ROAR_HAVE_IPX |
---|
| 507 | #define _NEED_OBJ |
---|
[5184] | 508 | #endif |
---|
| 509 | #if defined(ROAR_HAVE_IPX) || defined(ROAR_HAVE_GETADDRINFO) |
---|
[531] | 510 | int ret; |
---|
| 511 | #endif |
---|
[3788] | 512 | #ifdef ROAR_HAVE_IPX |
---|
| 513 | unsigned int ipx_port; |
---|
| 514 | #endif |
---|
[3643] | 515 | #ifdef ROAR_HAVE_UNIX |
---|
| 516 | int abstract = 0; |
---|
| 517 | #endif |
---|
[1476] | 518 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) || defined(ROAR_HAVE_UNIX) || defined(ROAR_HAVE_IPX) |
---|
[512] | 519 | union { |
---|
[1359] | 520 | struct sockaddr sa; |
---|
[1361] | 521 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) |
---|
[512] | 522 | struct sockaddr_in in; |
---|
[1359] | 523 | #endif |
---|
[1090] | 524 | #ifdef ROAR_HAVE_UNIX |
---|
[512] | 525 | struct sockaddr_un un; |
---|
[1090] | 526 | #endif |
---|
[890] | 527 | #ifdef ROAR_HAVE_IPV6 |
---|
[514] | 528 | struct sockaddr_in6 in6; |
---|
[890] | 529 | #endif |
---|
[531] | 530 | #ifdef ROAR_HAVE_IPX |
---|
| 531 | struct sockaddr_ipx ipx; |
---|
| 532 | #endif |
---|
[512] | 533 | } socket_addr; |
---|
[4759] | 534 | socklen_t addrlen; |
---|
[1476] | 535 | #endif |
---|
[1359] | 536 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) |
---|
[5379] | 537 | struct hostent * he = NULL; |
---|
[1359] | 538 | #endif |
---|
[0] | 539 | //unsigned int host_div = 0; |
---|
[3788] | 540 | #ifdef ROAR_TARGET_WIN32 |
---|
| 541 | int PASCAL (*mode_func)(SOCKET,const struct sockaddr*,int) = connect; // default is to connect |
---|
| 542 | #else |
---|
[0] | 543 | int (*mode_func)(int sockfd, const struct sockaddr *serv_addr, socklen_t addrlen) = connect; // default is to connect |
---|
[3788] | 544 | #endif |
---|
[501] | 545 | #ifdef ROAR_HAVE_LIBDNET |
---|
[531] | 546 | #define _NEED_OBJ |
---|
[5260] | 547 | char * dnet_node_buf; |
---|
[531] | 548 | #endif |
---|
| 549 | #ifdef _NEED_OBJ |
---|
[501] | 550 | char obj[80]; |
---|
| 551 | char * del; |
---|
| 552 | #endif |
---|
[4759] | 553 | int af_guessed = 0; |
---|
| 554 | #ifdef ROAR_HAVE_GETADDRINFO |
---|
| 555 | struct addrinfo hints, *res = NULL; |
---|
| 556 | char port_as_string[32]; |
---|
| 557 | #endif |
---|
[5098] | 558 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) |
---|
| 559 | int is_numerical = 1; |
---|
| 560 | const char * numptr; |
---|
| 561 | #endif |
---|
[0] | 562 | |
---|
[4692] | 563 | ROAR_DBG("roar_socket_open(mode=%i, type=%i, host='%s', port=%i) = ?", mode, type, host, port); |
---|
| 564 | |
---|
[5184] | 565 | roar_err_set(ROAR_ERROR_UNKNOWN); |
---|
| 566 | |
---|
[0] | 567 | if ( mode == MODE_LISTEN ) |
---|
| 568 | mode_func = bind; |
---|
| 569 | |
---|
| 570 | if ( type == ROAR_SOCKET_TYPE_UNKNOWN ) { |
---|
[4759] | 571 | af_guessed = 1; |
---|
[0] | 572 | type = ROAR_SOCKET_TYPE_INET; |
---|
[69] | 573 | if ( *host == '/' ) { |
---|
[0] | 574 | type = ROAR_SOCKET_TYPE_UNIX; |
---|
[69] | 575 | } else if ( strcmp(host, "+fork") == 0 ) { |
---|
| 576 | type = ROAR_SOCKET_TYPE_FORK; |
---|
[3643] | 577 | } else if ( strcmp(host, "+abstract") == 0 ) { |
---|
| 578 | type = ROAR_SOCKET_TYPE_UNIX; |
---|
[3785] | 579 | #ifdef ROAR_HAVE_UNIX |
---|
[3643] | 580 | abstract = 1; |
---|
[3785] | 581 | #endif |
---|
[501] | 582 | } else if ( strstr(host, "::") != NULL ) { |
---|
| 583 | type = ROAR_SOCKET_TYPE_DECNET; |
---|
[531] | 584 | } else if ( host[strlen(host)-1] == ')' ) { |
---|
| 585 | type = ROAR_SOCKET_TYPE_IPX; |
---|
[69] | 586 | } |
---|
[0] | 587 | } |
---|
| 588 | |
---|
| 589 | |
---|
[4692] | 590 | ROAR_DBG("roar_socket_open(mode=%i, type=%i, host='%s', port=%i) = ?", mode, type, host, port); |
---|
| 591 | |
---|
[0] | 592 | ROAR_DBG("roar_socket_open(*): type=%s, host='%s', port=%i", |
---|
[3956] | 593 | type == ROAR_SOCKET_TYPE_UNIX ? "UNIX" : "???", host, port); |
---|
[0] | 594 | |
---|
[501] | 595 | if ( type == ROAR_SOCKET_TYPE_DECNET ) { |
---|
| 596 | #ifdef ROAR_HAVE_LIBDNET |
---|
[508] | 597 | ROAR_DBG("roar_socket_open(*): hostname for DECnet: host(%p)=%s", host, host); |
---|
[501] | 598 | del = strstr(host, "::"); |
---|
[508] | 599 | ROAR_DBG("roar_socket_open(*): hostname for DECnet: del(%p)=%s", del, del); |
---|
| 600 | |
---|
| 601 | if ( del == NULL ) { |
---|
| 602 | ROAR_WARN("roar_socket_open(*): invalid hostname for DECnet: %s", host); |
---|
[5184] | 603 | roar_err_set(ROAR_ERROR_INVAL); |
---|
[508] | 604 | return -1; |
---|
| 605 | } |
---|
| 606 | |
---|
[501] | 607 | *del = 0; |
---|
| 608 | |
---|
| 609 | if ( *(del+2) == '#' ) { // assume we have node::#num |
---|
| 610 | port = atoi(del+2); |
---|
| 611 | } |
---|
| 612 | |
---|
| 613 | if ( port ) { |
---|
[1067] | 614 | snprintf(obj, 7, "%i", port); // no need for snprintf() as dec(port) is smaller than obj[] |
---|
[501] | 615 | } else { |
---|
| 616 | *obj = 0; |
---|
| 617 | strncat(obj, del+2, 79); |
---|
| 618 | } |
---|
| 619 | |
---|
[5137] | 620 | ROAR_DBG("roar_socket_open(*): obj='%s', port=%i", obj, port); |
---|
| 621 | |
---|
[508] | 622 | if ( mode == MODE_LISTEN ) { |
---|
| 623 | fh = roar_socket_listen_decnet(obj, port); |
---|
| 624 | *del = ':'; |
---|
| 625 | return fh; |
---|
| 626 | } else { |
---|
| 627 | // There is nothing wrong in this case to use dnet_conn() so we do. |
---|
[5260] | 628 | dnet_node_buf = roar_mm_strdup(host); |
---|
| 629 | if ( dnet_node_buf == NULL ) { |
---|
| 630 | *del = ':'; |
---|
| 631 | return -1; |
---|
| 632 | } |
---|
[5326] | 633 | ROAR_DBG("roar_socket_open(*): CALL dnet_conn('%s', '%s', SOCK_STREAM, 0 ,0 ,0 , 0)", dnet_node_buf, obj); |
---|
[5261] | 634 | fh = dnet_conn(dnet_node_buf, obj, SOCK_STREAM, 0, 0, 0, 0); |
---|
[5326] | 635 | ROAR_DBG("roar_socket_open(*): RET %i", fh); |
---|
[5260] | 636 | roar_mm_free(dnet_node_buf); |
---|
[501] | 637 | *del = ':'; |
---|
| 638 | return fh; |
---|
[533] | 639 | } |
---|
[501] | 640 | #else |
---|
[5184] | 641 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
---|
[533] | 642 | return -1; // no decnet support |
---|
[501] | 643 | #endif |
---|
| 644 | } |
---|
| 645 | |
---|
[1359] | 646 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) |
---|
[512] | 647 | memset(&socket_addr, 0, sizeof(socket_addr)); |
---|
[1359] | 648 | #endif |
---|
[0] | 649 | |
---|
| 650 | |
---|
[520] | 651 | if ( type == ROAR_SOCKET_TYPE_INET || type == ROAR_SOCKET_TYPE_INET6 ) { |
---|
[1359] | 652 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) |
---|
[0] | 653 | |
---|
[3956] | 654 | ROAR_DBG("roar_socket_open(*): type=INET|INET6, host='%s', port=%i", host, port); |
---|
[2039] | 655 | |
---|
[1768] | 656 | roar_socket_win32_init(); // we need to do this early as gethostbyname() requires this. |
---|
| 657 | |
---|
[3956] | 658 | ROAR_DBG("roar_socket_open(*): type=INET|INET6, host='%s', port=%i", host, port); |
---|
| 659 | |
---|
[5098] | 660 | if ( !!strcmp(host, "0.0.0.0") ) { |
---|
| 661 | for (numptr = host; is_numerical && *numptr != 0; numptr++) |
---|
| 662 | if ( ! ((*numptr >= '0' && *numptr <= '9') || *numptr == '.') ) |
---|
| 663 | is_numerical = 0; |
---|
| 664 | |
---|
[5138] | 665 | if ( is_numerical && roar_libroar_iswarn(NULL) ) { |
---|
[5098] | 666 | ROAR_WARN("roar_socket_open(*): Hostname \"%s\" is numerical. Do not use IP addresses directly. Use Hostnames.", host); |
---|
| 667 | } |
---|
| 668 | } |
---|
| 669 | |
---|
[4759] | 670 | #ifdef ROAR_HAVE_GETADDRINFO |
---|
| 671 | memset(&hints, 0, sizeof(hints)); |
---|
| 672 | hints.ai_socktype = SOCK_STREAM; |
---|
| 673 | if ( af_guessed ) { |
---|
| 674 | hints.ai_family = AF_UNSPEC; |
---|
| 675 | } else { |
---|
| 676 | hints.ai_family = type == ROAR_SOCKET_TYPE_INET ? AF_INET : AF_INET6; |
---|
| 677 | } |
---|
| 678 | |
---|
| 679 | snprintf(port_as_string, sizeof(port_as_string), "%i", port); |
---|
| 680 | |
---|
[5184] | 681 | ret = getaddrinfo(host, port_as_string, &hints, &res); |
---|
| 682 | switch (ret) { |
---|
| 683 | case 0: /* no error */; break; |
---|
[5203] | 684 | #ifdef EAI_ADDRFAMILY |
---|
[5184] | 685 | case EAI_ADDRFAMILY: roar_err_set(ROAR_ERROR_NOENT); break; |
---|
[5203] | 686 | #endif |
---|
[5184] | 687 | case EAI_AGAIN: roar_err_set(ROAR_ERROR_AGAIN); break; |
---|
| 688 | case EAI_BADFLAGS: roar_err_set(ROAR_ERROR_INVAL); break; |
---|
| 689 | case EAI_FAIL: roar_err_set(ROAR_ERROR_RIO); break; |
---|
| 690 | case EAI_FAMILY: roar_err_set(ROAR_ERROR_AFNOTSUP); break; |
---|
| 691 | case EAI_MEMORY: roar_err_set(ROAR_ERROR_NOMEM); break; |
---|
[5203] | 692 | #ifdef EAI_NODATA |
---|
[5184] | 693 | case EAI_NODATA: roar_err_set(ROAR_ERROR_NODATA); break; |
---|
[5203] | 694 | #endif |
---|
[5184] | 695 | case EAI_NONAME: roar_err_set(ROAR_ERROR_NOENT); break; |
---|
| 696 | case EAI_SERVICE: roar_err_set(ROAR_ERROR_PROTONOSUP); break; |
---|
| 697 | case EAI_SOCKTYPE: roar_err_set(ROAR_ERROR_INVAL); break; |
---|
| 698 | case EAI_SYSTEM: roar_err_from_errno(); break; |
---|
| 699 | default: |
---|
| 700 | roar_err_set(ROAR_ERROR_UNKNOWN); |
---|
| 701 | break; |
---|
| 702 | } |
---|
| 703 | if ( ret != 0 ) |
---|
[4759] | 704 | return -1; |
---|
| 705 | |
---|
| 706 | if ( af_guessed ) { |
---|
| 707 | type = res->ai_family == AF_INET ? ROAR_SOCKET_TYPE_INET : ROAR_SOCKET_TYPE_INET6; |
---|
| 708 | } |
---|
| 709 | |
---|
| 710 | if ( type == ROAR_SOCKET_TYPE_INET ) { |
---|
[5248] | 711 | fh = roar_socket_new(ROAR_SOCKET_TYPE_TCP); |
---|
[4759] | 712 | } else { |
---|
[5248] | 713 | fh = roar_socket_new(ROAR_SOCKET_TYPE_TCP6); |
---|
[4759] | 714 | } |
---|
| 715 | |
---|
| 716 | memcpy(&(socket_addr.sa), res->ai_addr, res->ai_addrlen); |
---|
| 717 | addrlen = res->ai_addrlen; |
---|
| 718 | |
---|
| 719 | if ( res != NULL ) |
---|
| 720 | freeaddrinfo(res); |
---|
| 721 | #else |
---|
[0] | 722 | if ( (he = gethostbyname(host)) == NULL ) { |
---|
| 723 | ROAR_ERR("roar_socket_open(*): Can\'t resolve host name '%s'", |
---|
| 724 | host); |
---|
[5184] | 725 | roar_err_from_errno(); |
---|
[0] | 726 | return -1; |
---|
| 727 | } |
---|
| 728 | |
---|
[4692] | 729 | ROAR_DBG("roar_socket_open(*): he=%p", he); |
---|
| 730 | |
---|
[4759] | 731 | memcpy((struct in_addr *)&(socket_addr.in.sin_addr), he->h_addr, sizeof(struct in_addr)); |
---|
[0] | 732 | |
---|
[520] | 733 | /* set the connect information */ |
---|
| 734 | socket_addr.in.sin_family = AF_INET; |
---|
| 735 | socket_addr.in.sin_port = ROAR_HOST2NET16(port); |
---|
| 736 | |
---|
[5248] | 737 | fh = roar_socket_new(ROAR_SOCKET_TYPE_TCP); |
---|
[4759] | 738 | addrlen = sizeof(struct sockaddr_in); |
---|
| 739 | #endif |
---|
[2039] | 740 | |
---|
[4692] | 741 | ROAR_DBG("roar_socket_open(*): fh=%i", fh); |
---|
| 742 | |
---|
[2039] | 743 | if ( fh == -1 ) { |
---|
| 744 | ROAR_ERR("roar_socket_open(*): Can\'t create TCP socket: %s", strerror(errno)); |
---|
| 745 | return -1; |
---|
| 746 | } |
---|
| 747 | |
---|
| 748 | ROAR_DBG("roar_socket_open(*) = ?"); |
---|
[0] | 749 | |
---|
[4692] | 750 | ROAR_DBG("roar_socket_open(*): fh=%i", fh); |
---|
| 751 | |
---|
[4759] | 752 | if ( mode_func(fh, (struct sockaddr *)&socket_addr.sa, addrlen) == -1 ) { |
---|
[520] | 753 | ROAR_DBG("roar_socket_open(*): Can not connect/bind: %s", strerror(errno)); |
---|
[5184] | 754 | roar_err_from_errno(); |
---|
[520] | 755 | close(fh); |
---|
| 756 | return -1; |
---|
| 757 | } |
---|
[4692] | 758 | |
---|
| 759 | ROAR_DBG("roar_socket_open(*): fh=%i", fh); |
---|
| 760 | |
---|
[0] | 761 | // hey! we have a socket... |
---|
[2040] | 762 | ROAR_DBG("roar_socket_open(*) = ? // we have a socket :)"); |
---|
[1359] | 763 | #else |
---|
[4692] | 764 | ROAR_DBG("roar_socket_open(*) = -1 // no IPv4 or IPv6 support"); |
---|
[5184] | 765 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
---|
[1359] | 766 | return -1; |
---|
| 767 | #endif |
---|
[69] | 768 | } else if ( type == ROAR_SOCKET_TYPE_UNIX ) { |
---|
[1090] | 769 | #ifdef ROAR_HAVE_UNIX |
---|
[512] | 770 | socket_addr.un.sun_family = AF_UNIX; |
---|
[3643] | 771 | |
---|
| 772 | if ( abstract ) { |
---|
| 773 | memset(socket_addr.un.sun_path, 0, sizeof(socket_addr.un.sun_path)); |
---|
| 774 | snprintf(socket_addr.un.sun_path+1, sizeof(socket_addr.un.sun_path)-1, "RoarAudio/UNIX/Abstract/%i", abstract); |
---|
| 775 | } else { |
---|
| 776 | strncpy(socket_addr.un.sun_path, host, sizeof(socket_addr.un.sun_path) - 1); |
---|
| 777 | } |
---|
[60] | 778 | |
---|
[5248] | 779 | fh = roar_socket_new(ROAR_SOCKET_TYPE_UNIX); |
---|
[60] | 780 | |
---|
[512] | 781 | if ( mode_func(fh, (struct sockaddr *)&socket_addr.un, sizeof(struct sockaddr_un)) == -1 ) { |
---|
[60] | 782 | ROAR_DBG("roar_socket_open(*): Can not connect/bind: %s", strerror(errno)); |
---|
[5184] | 783 | roar_err_from_errno(); |
---|
[60] | 784 | close(fh); |
---|
| 785 | return -1; |
---|
| 786 | } |
---|
[1090] | 787 | #else |
---|
| 788 | ROAR_ERR("roar_socket_open(*): There is no UNIX Domain Socket support in win32, download a real OS."); |
---|
[5184] | 789 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
---|
[1090] | 790 | return -1; |
---|
| 791 | #endif |
---|
[531] | 792 | } else if ( type == ROAR_SOCKET_TYPE_IPX ) { |
---|
[534] | 793 | #ifdef ROAR_HAVE_IPX |
---|
[531] | 794 | socket_addr.ipx.sipx_family = AF_IPX; |
---|
| 795 | |
---|
| 796 | obj[0] = 0; |
---|
| 797 | |
---|
[3788] | 798 | if ( (ret = sscanf(host, "%8x.%12s(%x)", &socket_addr.ipx.sipx_network, obj, &ipx_port)) < 2 ) { |
---|
[531] | 799 | return -1; |
---|
[3788] | 800 | socket_addr.ipx.sipx_port = ipx_port; |
---|
[531] | 801 | } else if ( ret == 2 ) { |
---|
| 802 | socket_addr.ipx.sipx_port = port; // Network Byte Order? |
---|
| 803 | } |
---|
| 804 | |
---|
| 805 | memset(socket_addr.ipx.sipx_node, 0, IPX_NODE_LEN); |
---|
| 806 | ret = strlen(obj); |
---|
| 807 | |
---|
| 808 | if ( ret % 2 ) // needs to be even at the moment |
---|
| 809 | return -1; |
---|
| 810 | |
---|
[5248] | 811 | fh = roar_socket_new(ROAR_SOCKET_TYPE_IPX); |
---|
[531] | 812 | |
---|
| 813 | close(fh); |
---|
[5248] | 814 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
---|
[531] | 815 | return -1; |
---|
[534] | 816 | #else |
---|
[5184] | 817 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
---|
[534] | 818 | return -1; |
---|
| 819 | #endif |
---|
[69] | 820 | } else if ( type == ROAR_SOCKET_TYPE_FORK ) { |
---|
[5369] | 821 | roar_err_set(ROAR_ERROR_INVAL); |
---|
| 822 | return -1; |
---|
[75] | 823 | } else if ( type == ROAR_SOCKET_TYPE_FILE ) { |
---|
| 824 | return roar_socket_open_file(mode, host, port); |
---|
[69] | 825 | } else { |
---|
[5184] | 826 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
---|
[69] | 827 | return -1; |
---|
[0] | 828 | } |
---|
| 829 | |
---|
[1476] | 830 | if ( mode == MODE_LISTEN ) { |
---|
[2040] | 831 | #if defined(ROAR_HAVE_BSDSOCKETS) || defined(ROAR_TARGET_WIN32) |
---|
[0] | 832 | if ( listen(fh, ROAR_SOCKET_QUEUE_LEN) == -1 ) { |
---|
[5184] | 833 | roar_err_from_errno(); |
---|
[0] | 834 | close(fh); |
---|
| 835 | return -1; |
---|
| 836 | } |
---|
[1476] | 837 | #else |
---|
[5184] | 838 | roar_err_set(ROAR_ERROR_NOSYS); |
---|
[1476] | 839 | return -1; |
---|
| 840 | #endif |
---|
| 841 | } |
---|
[0] | 842 | |
---|
| 843 | return fh; |
---|
| 844 | } |
---|
| 845 | |
---|
[5375] | 846 | static int roar_socket_open_file (int mode, const char * host, int port) { |
---|
[1476] | 847 | #ifdef ROAR_HAVE_IO_POSIX |
---|
[75] | 848 | int fh; |
---|
| 849 | |
---|
| 850 | if ( mode == MODE_LISTEN ) |
---|
| 851 | return -1; |
---|
| 852 | |
---|
| 853 | if ( (fh = open(host, O_RDONLY, 0644)) == -1 ) { |
---|
| 854 | ROAR_ERR("roar_socket_open_file(*): Can not open file %s: %s", host, strerror(errno)); |
---|
| 855 | } |
---|
| 856 | |
---|
| 857 | return fh; |
---|
[1476] | 858 | #else |
---|
| 859 | return -1; |
---|
| 860 | #endif |
---|
[75] | 861 | } |
---|
| 862 | |
---|
[2] | 863 | // --- [ PROXY CODE ] --- |
---|
| 864 | |
---|
[3901] | 865 | #ifndef ROAR_HAVE_IO_POSIX |
---|
| 866 | #ifdef ROAR_SUPPORT_PROXY |
---|
| 867 | #undef ROAR_SUPPORT_PROXY |
---|
| 868 | #endif |
---|
| 869 | #endif |
---|
| 870 | |
---|
[2] | 871 | // generic proxy code: |
---|
| 872 | |
---|
[1087] | 873 | #ifdef ROAR_SUPPORT_PROXY |
---|
[5375] | 874 | static int roar_socket_open_proxy (int mode, int type, const char * host, int port, const char * proxy_type) { |
---|
[829] | 875 | int proxy_port = -1; |
---|
[2] | 876 | char proxy_host[ROAR_SOCKET_MAX_HOSTNAMELEN]; |
---|
[829] | 877 | char * proxy_addr = NULL; |
---|
[2] | 878 | int i; |
---|
[829] | 879 | int fh = -1; |
---|
[835] | 880 | char * user = NULL, * pw = NULL, * opts = NULL; |
---|
[836] | 881 | char * sep; |
---|
[838] | 882 | int no_fh = 0; |
---|
[1008] | 883 | char proxy_addr_buf[1024]; |
---|
[835] | 884 | static struct passwd * passwd; |
---|
[5260] | 885 | int (* code)(int mode, int fh, const char * host, int port, const char * user, const char * pw, const char * opts) = NULL; |
---|
[2] | 886 | |
---|
[835] | 887 | if ( passwd == NULL ) { |
---|
| 888 | passwd = getpwuid(getuid()); |
---|
| 889 | } |
---|
| 890 | |
---|
[3897] | 891 | // TODO: fix this in a good way |
---|
| 892 | #ifndef ROAR_TARGET_MICROCONTROLLER |
---|
[835] | 893 | if ( passwd != NULL ) |
---|
| 894 | user = passwd->pw_name; |
---|
[3897] | 895 | #endif |
---|
[835] | 896 | |
---|
| 897 | if ( user == NULL ) |
---|
| 898 | user = getenv("USER"); |
---|
| 899 | |
---|
[2] | 900 | // TODO: change this so we support listen() proxys (ssh -R) |
---|
| 901 | if ( mode != MODE_CONNECT ) |
---|
| 902 | return -1; |
---|
| 903 | |
---|
[829] | 904 | if ( !strncmp(proxy_type, "socks", 5) ) { |
---|
[2] | 905 | proxy_addr = getenv("socks_proxy"); |
---|
| 906 | |
---|
| 907 | proxy_port = 9050; // TOR's default port |
---|
[832] | 908 | } else if ( !strcmp(proxy_type, "http") || !strcmp(proxy_type, "https") ) { |
---|
[830] | 909 | proxy_port = 8080; |
---|
[2] | 910 | |
---|
[832] | 911 | if ( (proxy_addr = getenv("http_proxy")) == NULL ) |
---|
| 912 | proxy_addr = getenv("https_proxy"); |
---|
| 913 | |
---|
[2] | 914 | if ( proxy_addr == NULL ) |
---|
| 915 | return -1; |
---|
| 916 | |
---|
[830] | 917 | if ( !strncmp(proxy_addr, "http://", 7) ) |
---|
| 918 | proxy_addr += 7; |
---|
[838] | 919 | } else if ( !strncmp(proxy_type, "ssh", 3) ) { |
---|
| 920 | proxy_port = 22; |
---|
| 921 | proxy_addr = getenv("ssh_proxy"); |
---|
| 922 | no_fh = 1; |
---|
[830] | 923 | } |
---|
[2] | 924 | |
---|
[1008] | 925 | proxy_addr_buf[1023] = 0; |
---|
| 926 | strncpy(proxy_addr_buf, proxy_addr, 1023); |
---|
| 927 | proxy_addr = proxy_addr_buf; |
---|
| 928 | |
---|
[837] | 929 | if ( (sep = strstr(proxy_type, "/")) != NULL ) |
---|
| 930 | opts = sep+1; |
---|
| 931 | |
---|
[830] | 932 | if ( proxy_addr == NULL ) |
---|
| 933 | return -1; |
---|
[2] | 934 | |
---|
[836] | 935 | if ( (sep = strstr(proxy_addr, "@")) != NULL ) { |
---|
| 936 | *sep = 0; |
---|
| 937 | user = proxy_addr; |
---|
| 938 | proxy_addr = sep+1; |
---|
| 939 | |
---|
| 940 | if ( (sep = strstr(user, ":")) != NULL ) { |
---|
| 941 | *sep = 0; |
---|
| 942 | pw = sep+1; |
---|
| 943 | } |
---|
| 944 | } |
---|
| 945 | |
---|
[1008] | 946 | 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); |
---|
| 947 | |
---|
[4028] | 948 | for (i = 0; proxy_addr[i] != 0 && proxy_addr[i] != ':' && i < (ROAR_SOCKET_MAX_HOSTNAMELEN - 1); i++) |
---|
[830] | 949 | proxy_host[i] = proxy_addr[i]; |
---|
| 950 | proxy_host[i] = 0; |
---|
[2] | 951 | |
---|
[830] | 952 | if ( i == 0 ) // no hostname found |
---|
| 953 | return -1; |
---|
| 954 | |
---|
| 955 | if ( proxy_addr[i] == ':' ) |
---|
| 956 | proxy_port = atoi(&proxy_addr[i+1]); |
---|
| 957 | |
---|
[838] | 958 | if ( ! no_fh ) { |
---|
| 959 | if ( (fh = roar_socket_open(mode, type, proxy_host, proxy_port)) == -1) { |
---|
| 960 | return -1; |
---|
| 961 | } |
---|
[829] | 962 | } |
---|
[2] | 963 | |
---|
[829] | 964 | if ( !strcmp(proxy_type, "socks4a") ) { // for TOR, the only supported type at the moment |
---|
[833] | 965 | code = roar_socket_open_socks4a; |
---|
| 966 | } else if ( !strcmp(proxy_type, "socks4d") ) { // DECnet |
---|
| 967 | code = roar_socket_open_socks4d; |
---|
| 968 | } else if ( !strcmp(proxy_type, "socks4") ) { // good old SOCKS4 |
---|
| 969 | code = roar_socket_open_socks4; |
---|
| 970 | } else if ( !strcmp(proxy_type, "http") ) { // HTTP CONNECT |
---|
| 971 | code = roar_socket_open_http; |
---|
[839] | 972 | } else if ( !strncmp(proxy_type, "ssh", 3) ) { // SSH... |
---|
[1063] | 973 | #ifdef ROAR_HAVE_BIN_SSH |
---|
[839] | 974 | code = roar_socket_open_ssh; |
---|
[1063] | 975 | #else |
---|
| 976 | ROAR_ERR("roar_socket_open_proxy(*): No SSH support compiled in"); |
---|
| 977 | #endif |
---|
[833] | 978 | } else { |
---|
| 979 | return -1; // unknown type |
---|
| 980 | } |
---|
[2] | 981 | |
---|
[833] | 982 | if ( code != NULL ) { |
---|
[838] | 983 | if ( no_fh ) { |
---|
| 984 | fh = code(mode, fh, host, port, user, pw, opts); |
---|
| 985 | } else { |
---|
| 986 | if ( code(mode, fh, host, port, user, pw, opts) == -1 ) { |
---|
| 987 | close(fh); |
---|
| 988 | return -1; |
---|
| 989 | } |
---|
[829] | 990 | } |
---|
| 991 | |
---|
| 992 | return fh; |
---|
[833] | 993 | } |
---|
[829] | 994 | |
---|
[833] | 995 | close(fh); |
---|
| 996 | return -1; |
---|
[2] | 997 | } |
---|
| 998 | |
---|
| 999 | // protocoll dependet proxy code: |
---|
| 1000 | |
---|
[5375] | 1001 | static int roar_socket_open_socks4 (int mode, int fh, const char * host, int port, const char * user, const char * pw, const char * opts) { |
---|
[3897] | 1002 | #ifndef ROAR_TARGET_MICROCONTROLLER |
---|
[829] | 1003 | struct hostent * he; |
---|
| 1004 | |
---|
| 1005 | if ( (he = gethostbyname(host)) == NULL ) { |
---|
| 1006 | ROAR_ERR("roar_socket_open_socks4(*): Can\'t resolve host name '%s'", host); |
---|
| 1007 | return -1; |
---|
| 1008 | } |
---|
| 1009 | |
---|
[834] | 1010 | return roar_socket_open_socks4x(mode, fh, he->h_addr, port, NULL, 0, user); |
---|
[3897] | 1011 | #else |
---|
| 1012 | return -1; |
---|
| 1013 | #endif |
---|
[829] | 1014 | } |
---|
| 1015 | |
---|
[5375] | 1016 | static int roar_socket_open_socks4a(int mode, int fh, const char * host, int port, const char * user, const char * pw, const char * opts) { |
---|
[834] | 1017 | return roar_socket_open_socks4x(mode, fh, "\0\0\0\1", port, host, strlen(host)+1, user); |
---|
[829] | 1018 | } |
---|
| 1019 | |
---|
[5375] | 1020 | static int roar_socket_open_socks4d(int mode, int fh, const char * host, int port, const char * user, const char * pw, const char * opts) { |
---|
[829] | 1021 | size_t len = strlen(host)+1; |
---|
| 1022 | char * dp; |
---|
| 1023 | |
---|
| 1024 | if ( port == 0 ) { |
---|
| 1025 | if ( (dp = strstr(host, "::")) == NULL ) |
---|
| 1026 | return -1; |
---|
| 1027 | |
---|
| 1028 | len--; |
---|
| 1029 | *dp = 0; |
---|
| 1030 | memmove(dp+1, dp+2, len - (dp-host) - 1); |
---|
| 1031 | } |
---|
| 1032 | |
---|
[834] | 1033 | return roar_socket_open_socks4x(mode, fh, "\0\2\0\0", port, host, len, user); |
---|
[829] | 1034 | } |
---|
| 1035 | |
---|
[5375] | 1036 | static int roar_socket_open_socks4x(int mode, int fh, char host[4], int port, const char * app, size_t app_len, const char * user) { |
---|
[2] | 1037 | char buf[9]; |
---|
[835] | 1038 | int len; |
---|
[2] | 1039 | |
---|
| 1040 | buf[0] = 0x04; |
---|
| 1041 | buf[1] = mode == MODE_CONNECT ? 0x01 : 0x02; |
---|
| 1042 | *((uint16_t*)&buf[2]) = htons(port); |
---|
[829] | 1043 | memcpy(buf+4, host, 4); |
---|
[835] | 1044 | |
---|
| 1045 | if ( user == NULL ) { |
---|
| 1046 | buf[8] = 0x00; |
---|
| 1047 | len = 9; |
---|
| 1048 | } else { |
---|
| 1049 | len = 8; |
---|
| 1050 | } |
---|
[2] | 1051 | |
---|
[835] | 1052 | if ( write(fh, buf, len) != len ) |
---|
[2] | 1053 | return -1; |
---|
| 1054 | |
---|
[835] | 1055 | if ( user != NULL ) { |
---|
| 1056 | len = strlen(user) + 1; |
---|
| 1057 | if ( write(fh, user, len) != len ) |
---|
| 1058 | return -1; |
---|
| 1059 | } |
---|
| 1060 | |
---|
[829] | 1061 | if ( app_len > 0 ) |
---|
[5270] | 1062 | if ( write(fh, app, app_len) != (ssize_t)app_len ) |
---|
[829] | 1063 | return -1; |
---|
[2] | 1064 | |
---|
| 1065 | if ( read(fh, buf, 8) != 8 ) |
---|
| 1066 | return -1; |
---|
| 1067 | |
---|
| 1068 | if ( buf[1] != 0x5a ) |
---|
| 1069 | return -1; |
---|
| 1070 | |
---|
| 1071 | return 0; |
---|
| 1072 | } |
---|
| 1073 | |
---|
[5375] | 1074 | static int roar_socket_open_http (int mode, int fh, const char * host, int port, const char * user, const char * pw, const char * opts) { |
---|
[831] | 1075 | char buf[1024]; |
---|
| 1076 | int len; |
---|
| 1077 | |
---|
| 1078 | if ( port == 0 || host == NULL ) |
---|
| 1079 | return -1; |
---|
| 1080 | |
---|
| 1081 | if ( *host == '/' ) // AF_UNIX |
---|
| 1082 | return -1; |
---|
| 1083 | |
---|
| 1084 | if ( (len = snprintf(buf, 1024, "CONNECT %s:%i HTTP/1.0\r\nUser-Agent: libroar\r\n\r\n", host, port)) == -1 ) |
---|
| 1085 | return -1; |
---|
| 1086 | |
---|
| 1087 | if ( write(fh, buf, len) != len ) |
---|
| 1088 | return -1; |
---|
| 1089 | |
---|
| 1090 | while ( (len = read(fh, buf, 1024)) ) { |
---|
| 1091 | if ( len == 1024 ) { // overlong lion |
---|
| 1092 | return -1; |
---|
| 1093 | } else if ( len == 2 && buf[0] == '\r' && buf[1] == '\n' ) { |
---|
| 1094 | break; |
---|
| 1095 | } else if ( len == 1 && (buf[0] == '\r' || buf[0] == '\n') ) { // bad proxy or devel trying to debug ;) |
---|
| 1096 | break; |
---|
| 1097 | } else if ( len >= 4 && buf[len-4] == '\r' && buf[len-3] == '\n' && buf[len-2] == '\r' && buf[len-1] == '\n' ) { |
---|
| 1098 | break; |
---|
| 1099 | } |
---|
| 1100 | } |
---|
| 1101 | |
---|
| 1102 | return 0; |
---|
[830] | 1103 | } |
---|
| 1104 | |
---|
[839] | 1105 | |
---|
[1063] | 1106 | #ifdef ROAR_HAVE_BIN_SSH |
---|
[5375] | 1107 | static int roar_socket_open_ssh (int mode, int fh, const char * host, int port, const char * user, const char * pw, const char * opts) { |
---|
[839] | 1108 | char * proxy_addr = getenv("ssh_proxy"); |
---|
| 1109 | char * sep; |
---|
| 1110 | char cmd[1024] = {0}, rcmd[1024] = {0}; |
---|
| 1111 | int proxy_port = 22; |
---|
[840] | 1112 | int use_socat = 0; |
---|
[839] | 1113 | int r; |
---|
| 1114 | int socks[2]; |
---|
| 1115 | |
---|
| 1116 | if ( host == NULL ) |
---|
| 1117 | return -1; |
---|
| 1118 | |
---|
| 1119 | if ( *host == '/' ) |
---|
[840] | 1120 | use_socat = 1; |
---|
[839] | 1121 | |
---|
| 1122 | if ( mode == MODE_LISTEN ) |
---|
| 1123 | return -1; |
---|
| 1124 | |
---|
| 1125 | if ( proxy_addr == NULL ) |
---|
| 1126 | return -1; |
---|
| 1127 | |
---|
[840] | 1128 | if ( opts != NULL ) { |
---|
| 1129 | if ( !strcmp(opts, "socat") ) { |
---|
| 1130 | use_socat = 1; |
---|
| 1131 | } else if ( !strcmp(opts, "netcat") ) { |
---|
| 1132 | use_socat = 0; |
---|
| 1133 | } else { |
---|
| 1134 | return -1; |
---|
| 1135 | } |
---|
| 1136 | } |
---|
| 1137 | |
---|
[1008] | 1138 | ROAR_DBG("roar_socket_open_ssh(*): proxy_addr='%s'", proxy_addr); |
---|
| 1139 | |
---|
[839] | 1140 | if ( (sep = strstr(proxy_addr, "@")) != NULL ) |
---|
| 1141 | proxy_addr = sep+1; |
---|
| 1142 | |
---|
| 1143 | if ( (sep = strstr(proxy_addr, ":")) != NULL ) { |
---|
| 1144 | *sep = 0; |
---|
| 1145 | proxy_port = atoi(sep+1); |
---|
| 1146 | } |
---|
| 1147 | |
---|
| 1148 | |
---|
| 1149 | if ( !strcmp(host, "+fork") ) { |
---|
[1068] | 1150 | strncpy(rcmd, "roard --no-listen --client-fh 0", 32); |
---|
[839] | 1151 | } else { |
---|
[840] | 1152 | if ( use_socat ) { |
---|
| 1153 | if ( *host == '/' ) { |
---|
| 1154 | snprintf(rcmd, 1023, "socat stdio unix-connect:\"%s\"", host); |
---|
| 1155 | } else { |
---|
| 1156 | snprintf(rcmd, 1023, "socat stdio tcp:\"%s\":%i", host, port); |
---|
| 1157 | } |
---|
| 1158 | } else { |
---|
| 1159 | snprintf(rcmd, 1023, "$(which netcat nc 2> /dev/null | grep -v \" \" | head -n 1) \"%s\" %i", host, port); |
---|
| 1160 | } |
---|
| 1161 | |
---|
[839] | 1162 | rcmd[1023] = 0; |
---|
| 1163 | } |
---|
| 1164 | |
---|
[1008] | 1165 | ROAR_DBG("roar_socket_open_ssh(*): proxy_port=%i, user='%s', proxy_addr='%s'", proxy_port, user, proxy_addr); |
---|
[1033] | 1166 | ROAR_DBG("roar_socket_open_ssh(*): rcmd: %s", rcmd); |
---|
[1063] | 1167 | snprintf(cmd, 1023, ROAR_HAVE_BIN_SSH " -p %i -l '%s' '%s' '%s'", proxy_port, user, proxy_addr, rcmd); |
---|
[839] | 1168 | cmd[1023] = 0; |
---|
| 1169 | |
---|
| 1170 | |
---|
[3897] | 1171 | // TODO: get this more portable! |
---|
| 1172 | #ifdef AF_UNIX |
---|
[839] | 1173 | if ( socketpair(AF_UNIX, SOCK_STREAM, 0, socks) == -1 ) { |
---|
| 1174 | return -1; |
---|
| 1175 | } |
---|
[3897] | 1176 | #else |
---|
| 1177 | return -1; |
---|
| 1178 | #endif |
---|
[839] | 1179 | |
---|
[5373] | 1180 | r = roar_fork(NULL); |
---|
[839] | 1181 | |
---|
| 1182 | if ( r == -1 ) { // error! |
---|
| 1183 | ROAR_ERR("roar_socket_open_ssh(*): Can not fork: %s", strerror(errno)); |
---|
| 1184 | close(socks[0]); |
---|
| 1185 | close(socks[1]); |
---|
| 1186 | return -1; |
---|
| 1187 | } else if ( r == 0 ) { // we are the child |
---|
| 1188 | close(socks[0]); |
---|
| 1189 | |
---|
| 1190 | close(ROAR_STDIN ); // we do not want roard to have any standard input |
---|
| 1191 | close(ROAR_STDOUT); // STDOUT is also not needed, so we close it, |
---|
| 1192 | // but STDERR we keep open for error messages. |
---|
| 1193 | |
---|
| 1194 | dup2(socks[1], 0); |
---|
| 1195 | dup2(socks[1], 1); |
---|
| 1196 | |
---|
[5364] | 1197 | execlp("sh", "sh", "-c", cmd, (_LIBROAR_GOOD_CAST char*)NULL); |
---|
[839] | 1198 | |
---|
| 1199 | // we are still alive? |
---|
| 1200 | ROAR_ERR("roar_socket_open_ssh(*): alive after exec(), that's bad!"); |
---|
| 1201 | _exit(1); |
---|
| 1202 | } else { // we are the parent |
---|
| 1203 | close(socks[1]); |
---|
| 1204 | return socks[0]; |
---|
| 1205 | } |
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| 1206 | return -1; |
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| 1207 | } |
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[1063] | 1208 | #endif |
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[839] | 1209 | |
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[1087] | 1210 | #endif // ROAR_SUPPORT_PROXY |
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| 1211 | |
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[0] | 1212 | //ll |
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