[0] | 1 | //socket.c: |
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| 2 | |
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[690] | 3 | /* |
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[5823] | 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2013 |
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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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[5951] | 39 | #if defined(ROAR_SUPPORT_PROXY) && !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) |
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| 40 | #include <pwd.h> |
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| 41 | #endif |
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| 42 | |
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[81] | 43 | #define MODE_LISTEN ROAR_SOCKET_MODE_LISTEN |
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| 44 | #define MODE_CONNECT ROAR_SOCKET_MODE_CONNECT |
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[0] | 45 | |
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[5375] | 46 | static int roar_socket_open_file (int mode, const char * host, int port); |
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[5527] | 47 | |
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| 48 | #ifdef ROAR_SUPPORT_PROXY |
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[5375] | 49 | static int roar_socket_open_proxy (int mode, int type, const char * host, int port, const char * proxy_type); |
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| 50 | |
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| 51 | 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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| 52 | 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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| 53 | 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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| 54 | 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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| 55 | |
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| 56 | 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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| 57 | |
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[5528] | 58 | #ifdef ROAR_HAVE_BIN_SSH |
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[5375] | 59 | 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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[5527] | 60 | #endif |
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| 61 | #endif |
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[5375] | 62 | |
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| 63 | |
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[1761] | 64 | #ifdef ROAR_TARGET_WIN32 |
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| 65 | void roar_socket_win32_init (void) { |
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| 66 | static int inited = 0; |
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| 67 | WSADATA wsadata; |
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| 68 | |
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| 69 | if ( !inited ) { |
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| 70 | WSAStartup(MAKEWORD(1,1) , &wsadata); |
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| 71 | inited++; |
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| 72 | } |
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| 73 | } |
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| 74 | #else |
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| 75 | #define roar_socket_win32_init() |
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| 76 | #endif |
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| 77 | |
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[5527] | 78 | #ifdef ROAR_HAVE_LIBDNET |
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[5376] | 79 | static int roar_socket_decnet_set_timeout (int fh, time_t sec, int_least32_t usec) { |
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[873] | 80 | struct timeval timeout = {sec, usec}; |
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| 81 | |
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| 82 | return setsockopt(fh, SOL_SOCKET, SO_SNDTIMEO, &timeout, sizeof(timeout)); |
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[5527] | 83 | } |
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[873] | 84 | #endif |
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| 85 | |
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[5375] | 86 | static int roar_socket_set_tos(int fh) { |
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[5210] | 87 | #if defined(ROAR_HAVE_BSDSOCKETS) && !defined(ROAR_TARGET_WIN32) |
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[5113] | 88 | int opt = IPTOS_LOWDELAY; |
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| 89 | int ret; |
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| 90 | |
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| 91 | roar_err_clear_errno(); |
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| 92 | ret = setsockopt(fh, IPPROTO_IP, IP_TOS, &opt, sizeof(int)); |
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| 93 | if ( ret < 0 ) |
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| 94 | roar_err_from_errno(); |
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| 95 | |
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| 96 | return ret; |
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| 97 | #else |
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[5375] | 98 | roar_err_set(ROAR_ERROR_NOSYS); |
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[5113] | 99 | return -1; |
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| 100 | #endif |
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| 101 | } |
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| 102 | |
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[5248] | 103 | #if 0 |
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| 104 | static int roar_socket_new_decnet_seqpacket (void) { |
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[508] | 105 | #ifdef ROAR_HAVE_LIBDNET |
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| 106 | int fh; |
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| 107 | |
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| 108 | fh = socket(AF_DECnet, SOCK_SEQPACKET, DNPROTO_NSP); |
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| 109 | |
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[873] | 110 | roar_socket_decnet_set_timeout(fh, 300, 0); |
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| 111 | |
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[508] | 112 | return fh; |
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| 113 | #else |
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| 114 | return -1; |
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| 115 | #endif |
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| 116 | } |
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[5248] | 117 | #endif |
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[508] | 118 | |
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| 119 | |
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[5248] | 120 | #if 0 |
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| 121 | static int roar_socket_new_ipxspx (void) { |
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| 122 | return -1; |
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| 123 | } |
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| 124 | #endif |
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| 125 | |
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| 126 | int roar_socket_new (int type) { |
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[5392] | 127 | #ifdef ROAR_HAVE_BSDSOCKETS |
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[5248] | 128 | int sys_domain = -1, sys_type = -1, sys_protocol = 0; |
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[508] | 129 | int fh; |
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[5248] | 130 | #if defined(ROAR_HAVE_IPV4) && defined(TCP_NODELAY) && !defined(ROAR_TARGET_WIN32) |
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| 131 | int t = 1; |
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| 132 | #endif |
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[508] | 133 | |
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[5248] | 134 | switch (type) { |
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| 135 | case ROAR_SOCKET_TYPE_NONE: |
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| 136 | case ROAR_SOCKET_TYPE_GENSTR: |
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| 137 | roar_err_set(ROAR_ERROR_INVAL); |
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| 138 | return -1; |
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| 139 | break; |
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| 140 | case ROAR_SOCKET_TYPE_FILE: |
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| 141 | case ROAR_SOCKET_TYPE_FORK: |
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| 142 | roar_err_set(ROAR_ERROR_PERM); |
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| 143 | return -1; |
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| 144 | break; |
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| 145 | #ifdef ROAR_HAVE_IPV4 |
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| 146 | case ROAR_SOCKET_TYPE_TCP: |
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| 147 | sys_domain = AF_INET; sys_type = SOCK_STREAM; |
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| 148 | break; |
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| 149 | case ROAR_SOCKET_TYPE_UDP: |
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| 150 | sys_domain = AF_INET; sys_type = SOCK_DGRAM; |
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| 151 | break; |
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| 152 | #endif |
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| 153 | #ifdef ROAR_HAVE_UNIX |
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| 154 | case ROAR_SOCKET_TYPE_UNIX: |
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| 155 | sys_domain = AF_UNIX; sys_type = SOCK_STREAM; |
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| 156 | break; |
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| 157 | #endif |
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| 158 | #ifdef ROAR_HAVE_LIBDNET |
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| 159 | case ROAR_SOCKET_TYPE_DECNET: |
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| 160 | sys_domain = AF_DECnet; sys_type = SOCK_STREAM; sys_protocol = DNPROTO_NSP; |
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| 161 | break; |
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| 162 | #endif |
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| 163 | #ifdef ROAR_HAVE_IPV6 |
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| 164 | case ROAR_SOCKET_TYPE_TCP6: |
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| 165 | sys_domain = AF_INET6; sys_type = SOCK_STREAM; |
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| 166 | break; |
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| 167 | case ROAR_SOCKET_TYPE_UDP6: |
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| 168 | sys_domain = AF_INET6; sys_type = SOCK_DGRAM; |
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| 169 | break; |
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| 170 | #endif |
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| 171 | #ifdef ROAR_HAVE_IPX |
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| 172 | case ROAR_SOCKET_TYPE_IPX: |
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| 173 | sys_domain = AF_IPX; sys_type = SOCK_DGRAM; sys_protocol = AF_IPX; |
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| 174 | break; |
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| 175 | #endif |
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| 176 | case ROAR_SOCKET_TYPE_IPXSPX: |
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| 177 | case ROAR_SOCKET_TYPE_LAT_SERVICE: |
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| 178 | case ROAR_SOCKET_TYPE_LAT_REVERSE_PORT: |
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| 179 | default: |
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| 180 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
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| 181 | return -1; |
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| 182 | break; |
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| 183 | } |
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[508] | 184 | |
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[5248] | 185 | roar_socket_win32_init(); |
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| 186 | |
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| 187 | roar_err_clear_all(); |
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| 188 | fh = socket(sys_domain, sys_type, sys_protocol); |
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| 189 | if ( fh == -1 ) { |
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| 190 | roar_err_update(); |
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| 191 | return -1; |
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| 192 | } |
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| 193 | |
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| 194 | // do the extra work we need to do for some socket types: |
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| 195 | switch (type) { |
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| 196 | #ifdef ROAR_HAVE_IPV4 |
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| 197 | case ROAR_SOCKET_TYPE_TCP: |
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| 198 | #if defined(TCP_NODELAY) && !defined(ROAR_TARGET_WIN32) |
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| 199 | setsockopt(fh, IPPROTO_TCP, TCP_NODELAY, &t, sizeof(int)); |
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| 200 | #endif |
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| 201 | case ROAR_SOCKET_TYPE_UDP: |
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| 202 | #endif |
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| 203 | #ifdef ROAR_HAVE_IPV6 |
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| 204 | case ROAR_SOCKET_TYPE_TCP6: |
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| 205 | case ROAR_SOCKET_TYPE_UDP6: |
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| 206 | #endif |
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| 207 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) |
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| 208 | roar_socket_set_tos(fh); |
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| 209 | break; |
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| 210 | #endif |
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| 211 | #ifdef ROAR_HAVE_LIBDNET |
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| 212 | case ROAR_SOCKET_TYPE_DECNET: |
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| 213 | roar_socket_decnet_set_timeout(fh, 300, 0); |
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| 214 | break; |
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| 215 | #endif |
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| 216 | } |
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[873] | 217 | |
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[508] | 218 | return fh; |
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[5392] | 219 | #else |
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| 220 | roar_err_set(ROAR_ERROR_NOSYS); |
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| 221 | return -1; |
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| 222 | #endif |
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[530] | 223 | } |
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| 224 | |
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| 225 | |
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[0] | 226 | int roar_socket_nonblock(int fh, int state) { |
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[4554] | 227 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) && defined(ROAR_HAVE_FCNTL) |
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[0] | 228 | int flags; |
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| 229 | |
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| 230 | if ( (flags = fcntl(fh, F_GETFL, 0)) == -1 ) { |
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[5148] | 231 | roar_err_from_errno(); |
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[0] | 232 | ROAR_ERR("roar_socket_nonblock(fh=%i, state=%i): Can not read flags: %s", fh, state, strerror(errno)); |
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| 233 | ROAR_DBG("roar_socket_nonblock(fh=%i, state=%i) = -1", fh, state); |
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| 234 | return -1; |
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| 235 | } |
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| 236 | |
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[1119] | 237 | if ( !(flags & O_NONBLOCK) && state == ROAR_SOCKET_BLOCK ) |
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| 238 | return 0; |
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| 239 | |
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[0] | 240 | flags |= O_NONBLOCK; |
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| 241 | |
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| 242 | if ( state == ROAR_SOCKET_BLOCK ) |
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| 243 | flags -= O_NONBLOCK; |
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| 244 | |
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| 245 | if ( fcntl(fh, F_SETFL, flags) == -1 ) { |
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[5148] | 246 | roar_err_from_errno(); |
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[0] | 247 | ROAR_ERR("roar_socket_nonblock(fh=%i, state=%i): Can not set flags: %s", fh, state, strerror(errno)); |
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| 248 | ROAR_DBG("roar_socket_nonblock(fh=%i, state=%i) = -1", fh, state); |
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| 249 | return -1; |
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| 250 | } |
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| 251 | |
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| 252 | ROAR_DBG("roar_socket_nonblock(fh=%i, state=%i) = 0", fh, state); |
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| 253 | return 0; |
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[1085] | 254 | #else |
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| 255 | ROAR_WARN("roar_socket_nonblock(*): no nonblocking IO support on win32, use a real OS"); |
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| 256 | return -1; |
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| 257 | #endif |
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[0] | 258 | } |
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| 259 | |
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[375] | 260 | int roar_socket_dup_udp_local_end (int fh) { |
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[4554] | 261 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) && defined(ROAR_HAVE_FCNTL) |
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[376] | 262 | int n = -1; |
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| 263 | int flags = -1; |
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| 264 | struct sockaddr_in socket_addr; |
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| 265 | socklen_t len = sizeof(struct sockaddr_in); |
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| 266 | |
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| 267 | if ( (flags = fcntl(fh, F_GETFL, 0)) == -1 ) { |
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| 268 | ROAR_WARN("roar_socket_dup_udp_local_end(fh=%i): Can not read flags: %s", fh, strerror(errno)); |
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| 269 | } |
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| 270 | |
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| 271 | if ( getsockname(fh, (struct sockaddr *)&socket_addr, &len) == -1 ) { |
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[5148] | 272 | roar_err_from_errno(); |
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[376] | 273 | return -1; |
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| 274 | } |
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| 275 | |
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| 276 | if ( socket_addr.sin_family != AF_INET ) { |
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[5148] | 277 | roar_err_set(ROAR_ERROR_TYPEMM); |
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[376] | 278 | return -1; |
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| 279 | } |
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| 280 | |
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[5248] | 281 | n = roar_socket_new(ROAR_SOCKET_TYPE_UDP); |
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[376] | 282 | |
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| 283 | if ( n == -1 ) |
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| 284 | return -1; |
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| 285 | |
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| 286 | // if ( mode_func(fh, (struct sockaddr *)&socket_addr, sizeof(struct sockaddr_in)) == -1 ) { |
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| 287 | if ( bind(n, (struct sockaddr *)&socket_addr, len) == -1 ) { |
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[5148] | 288 | roar_err_from_errno(); |
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[376] | 289 | close(n); |
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| 290 | return -1; |
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| 291 | } |
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| 292 | |
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| 293 | if ( flags != -1 ) { |
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| 294 | if ( fcntl(fh, F_SETFL, flags) == -1 ) { |
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| 295 | ROAR_WARN("roar_socket_dup_udp_local_end(fh=%i): Can not set flags: %s", fh, strerror(errno)); |
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| 296 | return -1; |
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| 297 | } |
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| 298 | } |
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| 299 | |
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| 300 | |
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| 301 | return n; |
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[1085] | 302 | #else |
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| 303 | ROAR_WARN("roar_socket_dup_udp_local_end(*): this function is not supported on win32, use a real OS"); |
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| 304 | return -1; |
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| 305 | #endif |
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[375] | 306 | } |
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| 307 | |
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[753] | 308 | |
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| 309 | #define _SCMR_CONTROLLEN (sizeof(struct cmsghdr) + sizeof(int)) |
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| 310 | int roar_socket_send_fh (int sock, int fh, char * mes, size_t len) { |
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[4554] | 311 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) && !defined(ROAR_OS_SUNOS) && !defined(ROAR_TARGET_OPENVMS) |
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[753] | 312 | struct iovec iov[1]; |
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| 313 | struct msghdr msg; |
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| 314 | char cmptr_buf[_SCMR_CONTROLLEN]; |
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| 315 | struct cmsghdr * cmptr = (struct cmsghdr *) cmptr_buf; |
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[754] | 316 | char localmes[1] = {0}; |
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[753] | 317 | |
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[759] | 318 | ROAR_DBG("roar_socket_send_fh(sock=%i, fh=%i, mes=%p, len=%u) = ?", sock, fh, mes, len); |
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| 319 | |
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[754] | 320 | if ( sock < 0 || fh < 0 ) |
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[753] | 321 | return -1; |
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| 322 | |
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[754] | 323 | if ( len == 0 ) { |
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| 324 | len = 1; |
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| 325 | mes = localmes; |
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| 326 | } |
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| 327 | |
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[5394] | 328 | memset(&msg, 0, sizeof(msg)); |
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[754] | 329 | memset(cmptr, 0, _SCMR_CONTROLLEN); |
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| 330 | |
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[753] | 331 | iov[0].iov_base = mes; |
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| 332 | iov[0].iov_len = len; |
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| 333 | msg.msg_iov = iov; |
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| 334 | msg.msg_iovlen = 1; |
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| 335 | msg.msg_name = NULL; |
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| 336 | msg.msg_namelen = 0; |
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| 337 | |
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| 338 | cmptr->cmsg_level = SOL_SOCKET; |
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| 339 | cmptr->cmsg_type = SCM_RIGHTS; |
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| 340 | cmptr->cmsg_len = _SCMR_CONTROLLEN; |
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| 341 | msg.msg_control = (caddr_t) cmptr; |
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| 342 | msg.msg_controllen = _SCMR_CONTROLLEN; |
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| 343 | *(int *)CMSG_DATA(cmptr) = fh; |
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| 344 | |
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| 345 | return sendmsg(sock, &msg, 0); |
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[1085] | 346 | #else |
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| 347 | ROAR_ERR("roar_socket_send_fh(*): There is no UNIX Domain Socket support in win32, download a real OS."); |
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| 348 | return -1; |
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| 349 | #endif |
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[753] | 350 | } |
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| 351 | |
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| 352 | int roar_socket_recv_fh (int sock, char * mes, size_t * len) { |
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[4554] | 353 | #if !defined(ROAR_TARGET_WIN32) && !defined(ROAR_TARGET_MICROCONTROLLER) && !defined(ROAR_OS_SUNOS) && !defined(ROAR_TARGET_OPENVMS) |
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[753] | 354 | struct iovec iov[1]; |
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| 355 | struct msghdr msg; |
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| 356 | char cmptr_buf[_SCMR_CONTROLLEN]; |
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| 357 | struct cmsghdr * cmptr = (struct cmsghdr *) cmptr_buf; |
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[754] | 358 | char localmes[1]; |
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| 359 | size_t locallen[1] = {1}; |
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[753] | 360 | |
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[4256] | 361 | ROAR_DBG("roar_socket_recv_fh(sock=%i, mes=%p, len=%p) = ?", sock, mes, len); |
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| 362 | |
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| 363 | if ( sock < 0 ) { |
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| 364 | ROAR_DBG("roar_socket_recv_fh(sock=%i, mes=%p, len=%p) = -1 // invalid socket", sock, mes, len); |
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[753] | 365 | return -1; |
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[4256] | 366 | } |
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[753] | 367 | |
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[754] | 368 | if ( len == NULL ) { |
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| 369 | len = locallen; |
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| 370 | mes = localmes; |
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| 371 | } |
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| 372 | |
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[753] | 373 | iov[0].iov_base = mes; |
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| 374 | iov[0].iov_len = *len; |
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| 375 | msg.msg_iov = iov; |
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| 376 | msg.msg_iovlen = 1; |
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| 377 | msg.msg_name = NULL; |
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| 378 | msg.msg_namelen = 0; |
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| 379 | |
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| 380 | msg.msg_control = (caddr_t) cmptr; |
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| 381 | msg.msg_controllen = _SCMR_CONTROLLEN; |
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| 382 | |
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[4256] | 383 | if ( (*len = recvmsg(sock, &msg, 0)) == -1 ) { |
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| 384 | 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] | 385 | return -1; |
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[4256] | 386 | } |
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[753] | 387 | |
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[4257] | 388 | if ( msg.msg_controllen < _SCMR_CONTROLLEN || |
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| 389 | cmptr->cmsg_len != _SCMR_CONTROLLEN ) { |
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[4256] | 390 | 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] | 391 | return -1; |
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[4256] | 392 | } |
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[753] | 393 | |
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[4256] | 394 | 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] | 395 | return *(int *)CMSG_DATA(cmptr); |
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[1085] | 396 | #else |
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| 397 | ROAR_ERR("roar_socket_recv_fh(*): There is no UNIX Domain Socket support in win32, download a real OS."); |
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| 398 | return -1; |
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| 399 | #endif |
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[753] | 400 | } |
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| 401 | |
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[5260] | 402 | int roar_socket_listen (int type, const char * host, int port) { |
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[0] | 403 | return roar_socket_open(MODE_LISTEN, type, host, port); |
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| 404 | } |
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| 405 | |
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[5375] | 406 | int roar_socket_connect (int type, const char * host, int port) { |
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[5754] | 407 | const char * proxy_type = roar_env_get("ROAR_PROXY"); |
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[2] | 408 | |
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[4692] | 409 | ROAR_DBG("roar_socket_connect(host='%s', port=%i) = ?", host, port); |
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| 410 | |
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[2] | 411 | if ( proxy_type == NULL || strcmp(proxy_type, "") == 0 ) { |
---|
[5375] | 412 | return roar_socket_open(MODE_CONNECT, type, host, port); |
---|
[2] | 413 | } else { |
---|
[1087] | 414 | #ifdef ROAR_SUPPORT_PROXY |
---|
[5375] | 415 | return roar_socket_open_proxy(MODE_CONNECT, type, host, port, proxy_type); |
---|
[1087] | 416 | #else |
---|
| 417 | ROAR_ERR("roar_socket_connect(host='%s', port=%i): no support for proxy code (proxy_type=%s)", host, port, proxy_type); |
---|
| 418 | return -1; |
---|
| 419 | #endif |
---|
[2] | 420 | } |
---|
[0] | 421 | } |
---|
| 422 | |
---|
[508] | 423 | |
---|
[5527] | 424 | #ifdef ROAR_HAVE_LIBDNET |
---|
[5376] | 425 | static int roar_socket_listen_decnet (const char * object, int num) { |
---|
[5248] | 426 | int fh = roar_socket_new(ROAR_SOCKET_TYPE_DECNET); |
---|
[508] | 427 | struct sockaddr_dn bind_sockaddr; |
---|
| 428 | |
---|
| 429 | if ( fh == -1 ) |
---|
| 430 | return -1; |
---|
| 431 | |
---|
[5376] | 432 | if ( object != NULL && !*object ) |
---|
[508] | 433 | object = NULL; |
---|
| 434 | |
---|
[5376] | 435 | if ( (object != NULL && num) || (object != NULL && !*object && !num) || (object == NULL && !num) ) { |
---|
[508] | 436 | ROAR_WARN("roar_socket_listen_decnet(object='%s', num=%i): illegal address!", object, num); |
---|
| 437 | close(fh); |
---|
[5376] | 438 | roar_err_set(ROAR_ERROR_INVAL); |
---|
[508] | 439 | return -1; |
---|
| 440 | } |
---|
| 441 | |
---|
| 442 | memset((void*)&bind_sockaddr, 0, sizeof(struct sockaddr_dn)); |
---|
| 443 | |
---|
| 444 | bind_sockaddr.sdn_family = AF_DECnet; |
---|
| 445 | bind_sockaddr.sdn_flags = 0; |
---|
| 446 | bind_sockaddr.sdn_objnum = num; |
---|
| 447 | |
---|
| 448 | if ( num ) { |
---|
| 449 | bind_sockaddr.sdn_objnamel = 0; |
---|
| 450 | } else { |
---|
[4073] | 451 | bind_sockaddr.sdn_objnamel = ROAR_HOST2LE16(strlen(object)); |
---|
[1068] | 452 | if ( bind_sockaddr.sdn_objnamel > DN_MAXOBJL ) |
---|
| 453 | bind_sockaddr.sdn_objnamel = DN_MAXOBJL; |
---|
| 454 | strncpy((char*)bind_sockaddr.sdn_objname, object, DN_MAXOBJL); |
---|
[508] | 455 | } |
---|
| 456 | |
---|
| 457 | if ( bind(fh, (struct sockaddr *) &bind_sockaddr, sizeof(bind_sockaddr)) == -1 ) { |
---|
[5376] | 458 | roar_err_from_errno(); |
---|
[508] | 459 | close(fh); |
---|
| 460 | return -1; |
---|
| 461 | } |
---|
| 462 | |
---|
| 463 | if ( listen(fh, 8) == -1 ) { |
---|
[5376] | 464 | roar_err_from_errno(); |
---|
[508] | 465 | close(fh); |
---|
| 466 | return -1; |
---|
| 467 | } |
---|
| 468 | |
---|
| 469 | return fh; |
---|
[5527] | 470 | } |
---|
[508] | 471 | #endif |
---|
| 472 | |
---|
[5121] | 473 | const char * roar_socket_get_local_nodename(void) { |
---|
[521] | 474 | #ifdef ROAR_HAVE_LIBDNET |
---|
| 475 | static char node[16] = {0}; |
---|
| 476 | struct dn_naddr *binaddr; |
---|
| 477 | struct nodeent *dp; |
---|
| 478 | |
---|
| 479 | if ( !node[0] ) { |
---|
[5376] | 480 | |
---|
| 481 | // TODO: This does this function not use getnodename()? |
---|
| 482 | |
---|
| 483 | // Those strange workarounds for the error codes are because those functions currently |
---|
| 484 | // don't set errno. This way we will use errno as soon as it starts to set it. |
---|
[521] | 485 | |
---|
[5376] | 486 | roar_err_update(); |
---|
| 487 | if ( (binaddr=getnodeadd()) == NULL) { |
---|
| 488 | roar_err_update(); |
---|
| 489 | if ( roar_error == ROAR_ERROR_NONE ) |
---|
| 490 | roar_err_set(ROAR_ERROR_NOENT); |
---|
[521] | 491 | return NULL; |
---|
[5376] | 492 | } |
---|
| 493 | |
---|
| 494 | roar_err_update(); |
---|
| 495 | if ( (dp=getnodebyaddr((char*)binaddr->a_addr, binaddr->a_len, AF_DECnet)) == NULL ) { |
---|
| 496 | roar_err_update(); |
---|
| 497 | if ( roar_error == ROAR_ERROR_NONE ) |
---|
| 498 | roar_err_set(ROAR_ERROR_NOENT); |
---|
| 499 | return NULL; |
---|
| 500 | } |
---|
[521] | 501 | |
---|
| 502 | strncpy(node, dp->n_name, 15); |
---|
| 503 | node[15] = 0; |
---|
| 504 | } |
---|
| 505 | |
---|
| 506 | return node; |
---|
| 507 | #else |
---|
[5376] | 508 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
---|
[521] | 509 | return NULL; |
---|
| 510 | #endif |
---|
| 511 | } |
---|
| 512 | |
---|
[5260] | 513 | int roar_socket_open (int mode, int type, const char * host, int port) { |
---|
[0] | 514 | // int type = ROAR_SOCKET_TYPE_INET; |
---|
| 515 | int fh; |
---|
[531] | 516 | #ifdef ROAR_HAVE_IPX |
---|
| 517 | #define _NEED_OBJ |
---|
[5184] | 518 | #endif |
---|
| 519 | #if defined(ROAR_HAVE_IPX) || defined(ROAR_HAVE_GETADDRINFO) |
---|
[531] | 520 | int ret; |
---|
| 521 | #endif |
---|
[3788] | 522 | #ifdef ROAR_HAVE_IPX |
---|
| 523 | unsigned int ipx_port; |
---|
| 524 | #endif |
---|
[3643] | 525 | #ifdef ROAR_HAVE_UNIX |
---|
| 526 | int abstract = 0; |
---|
| 527 | #endif |
---|
[1476] | 528 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) || defined(ROAR_HAVE_UNIX) || defined(ROAR_HAVE_IPX) |
---|
[512] | 529 | union { |
---|
[1359] | 530 | struct sockaddr sa; |
---|
[1361] | 531 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) |
---|
[512] | 532 | struct sockaddr_in in; |
---|
[1359] | 533 | #endif |
---|
[1090] | 534 | #ifdef ROAR_HAVE_UNIX |
---|
[512] | 535 | struct sockaddr_un un; |
---|
[1090] | 536 | #endif |
---|
[890] | 537 | #ifdef ROAR_HAVE_IPV6 |
---|
[514] | 538 | struct sockaddr_in6 in6; |
---|
[890] | 539 | #endif |
---|
[531] | 540 | #ifdef ROAR_HAVE_IPX |
---|
| 541 | struct sockaddr_ipx ipx; |
---|
| 542 | #endif |
---|
[512] | 543 | } socket_addr; |
---|
[4759] | 544 | socklen_t addrlen; |
---|
[1476] | 545 | #endif |
---|
[5419] | 546 | #if (defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6)) && !defined(ROAR_HAVE_GETADDRINFO) |
---|
[5379] | 547 | struct hostent * he = NULL; |
---|
[1359] | 548 | #endif |
---|
[0] | 549 | //unsigned int host_div = 0; |
---|
[3788] | 550 | #ifdef ROAR_TARGET_WIN32 |
---|
| 551 | int PASCAL (*mode_func)(SOCKET,const struct sockaddr*,int) = connect; // default is to connect |
---|
| 552 | #else |
---|
[0] | 553 | int (*mode_func)(int sockfd, const struct sockaddr *serv_addr, socklen_t addrlen) = connect; // default is to connect |
---|
[3788] | 554 | #endif |
---|
[501] | 555 | #ifdef ROAR_HAVE_LIBDNET |
---|
[531] | 556 | #define _NEED_OBJ |
---|
[5260] | 557 | char * dnet_node_buf; |
---|
[531] | 558 | #endif |
---|
| 559 | #ifdef _NEED_OBJ |
---|
[501] | 560 | char obj[80]; |
---|
| 561 | char * del; |
---|
| 562 | #endif |
---|
[5745] | 563 | #ifdef ROAR_HAVE_GETADDRINFO |
---|
[4759] | 564 | int af_guessed = 0; |
---|
| 565 | struct addrinfo hints, *res = NULL; |
---|
| 566 | char port_as_string[32]; |
---|
| 567 | #endif |
---|
[5098] | 568 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) |
---|
| 569 | int is_numerical = 1; |
---|
| 570 | const char * numptr; |
---|
| 571 | #endif |
---|
[0] | 572 | |
---|
[4692] | 573 | ROAR_DBG("roar_socket_open(mode=%i, type=%i, host='%s', port=%i) = ?", mode, type, host, port); |
---|
| 574 | |
---|
[5714] | 575 | if ( host == NULL ) { |
---|
| 576 | roar_err_set(ROAR_ERROR_FAULT); |
---|
| 577 | return -1; |
---|
| 578 | } |
---|
| 579 | |
---|
[5184] | 580 | roar_err_set(ROAR_ERROR_UNKNOWN); |
---|
| 581 | |
---|
[0] | 582 | if ( mode == MODE_LISTEN ) |
---|
| 583 | mode_func = bind; |
---|
| 584 | |
---|
| 585 | if ( type == ROAR_SOCKET_TYPE_UNKNOWN ) { |
---|
[5745] | 586 | #ifdef ROAR_HAVE_GETADDRINFO |
---|
[4759] | 587 | af_guessed = 1; |
---|
[5745] | 588 | #endif |
---|
[0] | 589 | type = ROAR_SOCKET_TYPE_INET; |
---|
[69] | 590 | if ( *host == '/' ) { |
---|
[0] | 591 | type = ROAR_SOCKET_TYPE_UNIX; |
---|
[69] | 592 | } else if ( strcmp(host, "+fork") == 0 ) { |
---|
| 593 | type = ROAR_SOCKET_TYPE_FORK; |
---|
[3643] | 594 | } else if ( strcmp(host, "+abstract") == 0 ) { |
---|
| 595 | type = ROAR_SOCKET_TYPE_UNIX; |
---|
[3785] | 596 | #ifdef ROAR_HAVE_UNIX |
---|
[3643] | 597 | abstract = 1; |
---|
[3785] | 598 | #endif |
---|
[501] | 599 | } else if ( strstr(host, "::") != NULL ) { |
---|
| 600 | type = ROAR_SOCKET_TYPE_DECNET; |
---|
[531] | 601 | } else if ( host[strlen(host)-1] == ')' ) { |
---|
| 602 | type = ROAR_SOCKET_TYPE_IPX; |
---|
[69] | 603 | } |
---|
[0] | 604 | } |
---|
| 605 | |
---|
| 606 | |
---|
[4692] | 607 | ROAR_DBG("roar_socket_open(mode=%i, type=%i, host='%s', port=%i) = ?", mode, type, host, port); |
---|
| 608 | |
---|
[0] | 609 | ROAR_DBG("roar_socket_open(*): type=%s, host='%s', port=%i", |
---|
[3956] | 610 | type == ROAR_SOCKET_TYPE_UNIX ? "UNIX" : "???", host, port); |
---|
[0] | 611 | |
---|
[501] | 612 | if ( type == ROAR_SOCKET_TYPE_DECNET ) { |
---|
| 613 | #ifdef ROAR_HAVE_LIBDNET |
---|
[5687] | 614 | ROAR_DBG("roar_socket_open(*): nodename for DECnet: host(%p)=%s", host, host); |
---|
| 615 | dnet_node_buf = roar_mm_strdup(host); |
---|
| 616 | // roar_error is still set. |
---|
| 617 | if ( dnet_node_buf == NULL ) |
---|
| 618 | return -1; |
---|
| 619 | |
---|
| 620 | host = dnet_node_buf; |
---|
| 621 | |
---|
[501] | 622 | del = strstr(host, "::"); |
---|
[5687] | 623 | ROAR_DBG("roar_socket_open(*): nodename for DECnet: del(%p)=%s", del, del); |
---|
[508] | 624 | |
---|
| 625 | if ( del == NULL ) { |
---|
[5687] | 626 | ROAR_WARN("roar_socket_open(*): invalid nodename for DECnet: %s", host); |
---|
| 627 | roar_mm_free(dnet_node_buf); |
---|
[5184] | 628 | roar_err_set(ROAR_ERROR_INVAL); |
---|
[508] | 629 | return -1; |
---|
| 630 | } |
---|
| 631 | |
---|
[501] | 632 | *del = 0; |
---|
| 633 | |
---|
| 634 | if ( *(del+2) == '#' ) { // assume we have node::#num |
---|
| 635 | port = atoi(del+2); |
---|
| 636 | } |
---|
| 637 | |
---|
| 638 | if ( port ) { |
---|
[1067] | 639 | snprintf(obj, 7, "%i", port); // no need for snprintf() as dec(port) is smaller than obj[] |
---|
[501] | 640 | } else { |
---|
| 641 | *obj = 0; |
---|
| 642 | strncat(obj, del+2, 79); |
---|
| 643 | } |
---|
| 644 | |
---|
[5137] | 645 | ROAR_DBG("roar_socket_open(*): obj='%s', port=%i", obj, port); |
---|
| 646 | |
---|
[508] | 647 | if ( mode == MODE_LISTEN ) { |
---|
| 648 | fh = roar_socket_listen_decnet(obj, port); |
---|
[5687] | 649 | roar_mm_free(dnet_node_buf); |
---|
[508] | 650 | return fh; |
---|
| 651 | } else { |
---|
| 652 | // There is nothing wrong in this case to use dnet_conn() so we do. |
---|
[5326] | 653 | ROAR_DBG("roar_socket_open(*): CALL dnet_conn('%s', '%s', SOCK_STREAM, 0 ,0 ,0 , 0)", dnet_node_buf, obj); |
---|
[5261] | 654 | fh = dnet_conn(dnet_node_buf, obj, SOCK_STREAM, 0, 0, 0, 0); |
---|
[5326] | 655 | ROAR_DBG("roar_socket_open(*): RET %i", fh); |
---|
[5260] | 656 | roar_mm_free(dnet_node_buf); |
---|
[501] | 657 | return fh; |
---|
[533] | 658 | } |
---|
[501] | 659 | #else |
---|
[5184] | 660 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
---|
[533] | 661 | return -1; // no decnet support |
---|
[501] | 662 | #endif |
---|
| 663 | } |
---|
| 664 | |
---|
[1359] | 665 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) |
---|
[512] | 666 | memset(&socket_addr, 0, sizeof(socket_addr)); |
---|
[1359] | 667 | #endif |
---|
[0] | 668 | |
---|
| 669 | |
---|
[520] | 670 | if ( type == ROAR_SOCKET_TYPE_INET || type == ROAR_SOCKET_TYPE_INET6 ) { |
---|
[1359] | 671 | #if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_IPV6) |
---|
[0] | 672 | |
---|
[3956] | 673 | ROAR_DBG("roar_socket_open(*): type=INET|INET6, host='%s', port=%i", host, port); |
---|
[2039] | 674 | |
---|
[1768] | 675 | roar_socket_win32_init(); // we need to do this early as gethostbyname() requires this. |
---|
| 676 | |
---|
[3956] | 677 | ROAR_DBG("roar_socket_open(*): type=INET|INET6, host='%s', port=%i", host, port); |
---|
| 678 | |
---|
[5098] | 679 | if ( !!strcmp(host, "0.0.0.0") ) { |
---|
| 680 | for (numptr = host; is_numerical && *numptr != 0; numptr++) |
---|
| 681 | if ( ! ((*numptr >= '0' && *numptr <= '9') || *numptr == '.') ) |
---|
| 682 | is_numerical = 0; |
---|
| 683 | |
---|
[5138] | 684 | if ( is_numerical && roar_libroar_iswarn(NULL) ) { |
---|
[5098] | 685 | ROAR_WARN("roar_socket_open(*): Hostname \"%s\" is numerical. Do not use IP addresses directly. Use Hostnames.", host); |
---|
| 686 | } |
---|
| 687 | } |
---|
| 688 | |
---|
[4759] | 689 | #ifdef ROAR_HAVE_GETADDRINFO |
---|
| 690 | memset(&hints, 0, sizeof(hints)); |
---|
| 691 | hints.ai_socktype = SOCK_STREAM; |
---|
| 692 | if ( af_guessed ) { |
---|
| 693 | hints.ai_family = AF_UNSPEC; |
---|
| 694 | } else { |
---|
| 695 | hints.ai_family = type == ROAR_SOCKET_TYPE_INET ? AF_INET : AF_INET6; |
---|
| 696 | } |
---|
| 697 | |
---|
| 698 | snprintf(port_as_string, sizeof(port_as_string), "%i", port); |
---|
| 699 | |
---|
[5184] | 700 | ret = getaddrinfo(host, port_as_string, &hints, &res); |
---|
[5554] | 701 | if ( ret == EAI_SYSTEM ) { |
---|
| 702 | roar_err_from_errno(); |
---|
| 703 | return -1; |
---|
| 704 | } else if ( ret != 0 ) { |
---|
| 705 | roar_err_convert(&roar_error, ROAR_ERROR_TYPE_ROARAUDIO, ret, ROAR_ERROR_TYPE_EAI); |
---|
| 706 | return -1; |
---|
[5184] | 707 | } |
---|
[4759] | 708 | |
---|
| 709 | if ( af_guessed ) { |
---|
| 710 | type = res->ai_family == AF_INET ? ROAR_SOCKET_TYPE_INET : ROAR_SOCKET_TYPE_INET6; |
---|
| 711 | } |
---|
| 712 | |
---|
| 713 | if ( type == ROAR_SOCKET_TYPE_INET ) { |
---|
[5248] | 714 | fh = roar_socket_new(ROAR_SOCKET_TYPE_TCP); |
---|
[4759] | 715 | } else { |
---|
[5248] | 716 | fh = roar_socket_new(ROAR_SOCKET_TYPE_TCP6); |
---|
[4759] | 717 | } |
---|
| 718 | |
---|
| 719 | memcpy(&(socket_addr.sa), res->ai_addr, res->ai_addrlen); |
---|
| 720 | addrlen = res->ai_addrlen; |
---|
| 721 | |
---|
| 722 | if ( res != NULL ) |
---|
| 723 | freeaddrinfo(res); |
---|
| 724 | #else |
---|
[0] | 725 | if ( (he = gethostbyname(host)) == NULL ) { |
---|
| 726 | ROAR_ERR("roar_socket_open(*): Can\'t resolve host name '%s'", |
---|
| 727 | host); |
---|
[5184] | 728 | roar_err_from_errno(); |
---|
[0] | 729 | return -1; |
---|
| 730 | } |
---|
| 731 | |
---|
[4692] | 732 | ROAR_DBG("roar_socket_open(*): he=%p", he); |
---|
| 733 | |
---|
[4759] | 734 | memcpy((struct in_addr *)&(socket_addr.in.sin_addr), he->h_addr, sizeof(struct in_addr)); |
---|
[0] | 735 | |
---|
[520] | 736 | /* set the connect information */ |
---|
| 737 | socket_addr.in.sin_family = AF_INET; |
---|
| 738 | socket_addr.in.sin_port = ROAR_HOST2NET16(port); |
---|
| 739 | |
---|
[5248] | 740 | fh = roar_socket_new(ROAR_SOCKET_TYPE_TCP); |
---|
[4759] | 741 | addrlen = sizeof(struct sockaddr_in); |
---|
| 742 | #endif |
---|
[2039] | 743 | |
---|
[4692] | 744 | ROAR_DBG("roar_socket_open(*): fh=%i", fh); |
---|
| 745 | |
---|
[2039] | 746 | if ( fh == -1 ) { |
---|
| 747 | ROAR_ERR("roar_socket_open(*): Can\'t create TCP socket: %s", strerror(errno)); |
---|
| 748 | return -1; |
---|
| 749 | } |
---|
| 750 | |
---|
| 751 | ROAR_DBG("roar_socket_open(*) = ?"); |
---|
[0] | 752 | |
---|
[4692] | 753 | ROAR_DBG("roar_socket_open(*): fh=%i", fh); |
---|
| 754 | |
---|
[4759] | 755 | if ( mode_func(fh, (struct sockaddr *)&socket_addr.sa, addrlen) == -1 ) { |
---|
[520] | 756 | ROAR_DBG("roar_socket_open(*): Can not connect/bind: %s", strerror(errno)); |
---|
[5184] | 757 | roar_err_from_errno(); |
---|
[520] | 758 | close(fh); |
---|
| 759 | return -1; |
---|
| 760 | } |
---|
[4692] | 761 | |
---|
| 762 | ROAR_DBG("roar_socket_open(*): fh=%i", fh); |
---|
| 763 | |
---|
[0] | 764 | // hey! we have a socket... |
---|
[2040] | 765 | ROAR_DBG("roar_socket_open(*) = ? // we have a socket :)"); |
---|
[1359] | 766 | #else |
---|
[4692] | 767 | ROAR_DBG("roar_socket_open(*) = -1 // no IPv4 or IPv6 support"); |
---|
[5184] | 768 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
---|
[1359] | 769 | return -1; |
---|
| 770 | #endif |
---|
[69] | 771 | } else if ( type == ROAR_SOCKET_TYPE_UNIX ) { |
---|
[1090] | 772 | #ifdef ROAR_HAVE_UNIX |
---|
[512] | 773 | socket_addr.un.sun_family = AF_UNIX; |
---|
[3643] | 774 | |
---|
| 775 | if ( abstract ) { |
---|
| 776 | memset(socket_addr.un.sun_path, 0, sizeof(socket_addr.un.sun_path)); |
---|
| 777 | snprintf(socket_addr.un.sun_path+1, sizeof(socket_addr.un.sun_path)-1, "RoarAudio/UNIX/Abstract/%i", abstract); |
---|
| 778 | } else { |
---|
| 779 | strncpy(socket_addr.un.sun_path, host, sizeof(socket_addr.un.sun_path) - 1); |
---|
| 780 | } |
---|
[60] | 781 | |
---|
[5248] | 782 | fh = roar_socket_new(ROAR_SOCKET_TYPE_UNIX); |
---|
[60] | 783 | |
---|
[512] | 784 | if ( mode_func(fh, (struct sockaddr *)&socket_addr.un, sizeof(struct sockaddr_un)) == -1 ) { |
---|
[60] | 785 | ROAR_DBG("roar_socket_open(*): Can not connect/bind: %s", strerror(errno)); |
---|
[5184] | 786 | roar_err_from_errno(); |
---|
[60] | 787 | close(fh); |
---|
| 788 | return -1; |
---|
| 789 | } |
---|
[1090] | 790 | #else |
---|
| 791 | ROAR_ERR("roar_socket_open(*): There is no UNIX Domain Socket support in win32, download a real OS."); |
---|
[5184] | 792 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
---|
[1090] | 793 | return -1; |
---|
| 794 | #endif |
---|
[531] | 795 | } else if ( type == ROAR_SOCKET_TYPE_IPX ) { |
---|
[534] | 796 | #ifdef ROAR_HAVE_IPX |
---|
[531] | 797 | socket_addr.ipx.sipx_family = AF_IPX; |
---|
| 798 | |
---|
| 799 | obj[0] = 0; |
---|
| 800 | |
---|
[3788] | 801 | if ( (ret = sscanf(host, "%8x.%12s(%x)", &socket_addr.ipx.sipx_network, obj, &ipx_port)) < 2 ) { |
---|
[531] | 802 | return -1; |
---|
[3788] | 803 | socket_addr.ipx.sipx_port = ipx_port; |
---|
[531] | 804 | } else if ( ret == 2 ) { |
---|
| 805 | socket_addr.ipx.sipx_port = port; // Network Byte Order? |
---|
| 806 | } |
---|
| 807 | |
---|
| 808 | memset(socket_addr.ipx.sipx_node, 0, IPX_NODE_LEN); |
---|
| 809 | ret = strlen(obj); |
---|
| 810 | |
---|
| 811 | if ( ret % 2 ) // needs to be even at the moment |
---|
| 812 | return -1; |
---|
| 813 | |
---|
[5248] | 814 | fh = roar_socket_new(ROAR_SOCKET_TYPE_IPX); |
---|
[531] | 815 | |
---|
| 816 | close(fh); |
---|
[5248] | 817 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
---|
[531] | 818 | return -1; |
---|
[534] | 819 | #else |
---|
[5184] | 820 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
---|
[534] | 821 | return -1; |
---|
| 822 | #endif |
---|
[69] | 823 | } else if ( type == ROAR_SOCKET_TYPE_FORK ) { |
---|
[5369] | 824 | roar_err_set(ROAR_ERROR_INVAL); |
---|
| 825 | return -1; |
---|
[75] | 826 | } else if ( type == ROAR_SOCKET_TYPE_FILE ) { |
---|
| 827 | return roar_socket_open_file(mode, host, port); |
---|
[69] | 828 | } else { |
---|
[5184] | 829 | roar_err_set(ROAR_ERROR_AFNOTSUP); |
---|
[69] | 830 | return -1; |
---|
[0] | 831 | } |
---|
| 832 | |
---|
[1476] | 833 | if ( mode == MODE_LISTEN ) { |
---|
[2040] | 834 | #if defined(ROAR_HAVE_BSDSOCKETS) || defined(ROAR_TARGET_WIN32) |
---|
[0] | 835 | if ( listen(fh, ROAR_SOCKET_QUEUE_LEN) == -1 ) { |
---|
[5184] | 836 | roar_err_from_errno(); |
---|
[0] | 837 | close(fh); |
---|
| 838 | return -1; |
---|
| 839 | } |
---|
[1476] | 840 | #else |
---|
[5184] | 841 | roar_err_set(ROAR_ERROR_NOSYS); |
---|
[1476] | 842 | return -1; |
---|
| 843 | #endif |
---|
| 844 | } |
---|
[0] | 845 | |
---|
| 846 | return fh; |
---|
| 847 | } |
---|
| 848 | |
---|
[5375] | 849 | static int roar_socket_open_file (int mode, const char * host, int port) { |
---|
[1476] | 850 | #ifdef ROAR_HAVE_IO_POSIX |
---|
[75] | 851 | int fh; |
---|
| 852 | |
---|
| 853 | if ( mode == MODE_LISTEN ) |
---|
| 854 | return -1; |
---|
| 855 | |
---|
| 856 | if ( (fh = open(host, O_RDONLY, 0644)) == -1 ) { |
---|
| 857 | ROAR_ERR("roar_socket_open_file(*): Can not open file %s: %s", host, strerror(errno)); |
---|
| 858 | } |
---|
| 859 | |
---|
| 860 | return fh; |
---|
[1476] | 861 | #else |
---|
| 862 | return -1; |
---|
| 863 | #endif |
---|
[75] | 864 | } |
---|
| 865 | |
---|
[2] | 866 | // --- [ PROXY CODE ] --- |
---|
| 867 | |
---|
[3901] | 868 | #ifndef ROAR_HAVE_IO_POSIX |
---|
| 869 | #ifdef ROAR_SUPPORT_PROXY |
---|
| 870 | #undef ROAR_SUPPORT_PROXY |
---|
| 871 | #endif |
---|
| 872 | #endif |
---|
| 873 | |
---|
[2] | 874 | // generic proxy code: |
---|
| 875 | |
---|
[1087] | 876 | #ifdef ROAR_SUPPORT_PROXY |
---|
[5375] | 877 | static int roar_socket_open_proxy (int mode, int type, const char * host, int port, const char * proxy_type) { |
---|
[829] | 878 | int proxy_port = -1; |
---|
[2] | 879 | char proxy_host[ROAR_SOCKET_MAX_HOSTNAMELEN]; |
---|
[5754] | 880 | const char * proxy_addr = NULL; |
---|
[2] | 881 | int i; |
---|
[829] | 882 | int fh = -1; |
---|
[5754] | 883 | const char * user = NULL, * pw = NULL, * opts = NULL; |
---|
[836] | 884 | char * sep; |
---|
[838] | 885 | int no_fh = 0; |
---|
[1008] | 886 | char proxy_addr_buf[1024]; |
---|
[835] | 887 | static struct passwd * passwd; |
---|
[5260] | 888 | int (* code)(int mode, int fh, const char * host, int port, const char * user, const char * pw, const char * opts) = NULL; |
---|
[2] | 889 | |
---|
[835] | 890 | if ( passwd == NULL ) { |
---|
| 891 | passwd = getpwuid(getuid()); |
---|
| 892 | } |
---|
| 893 | |
---|
[3897] | 894 | // TODO: fix this in a good way |
---|
| 895 | #ifndef ROAR_TARGET_MICROCONTROLLER |
---|
[835] | 896 | if ( passwd != NULL ) |
---|
| 897 | user = passwd->pw_name; |
---|
[3897] | 898 | #endif |
---|
[835] | 899 | |
---|
| 900 | if ( user == NULL ) |
---|
[5754] | 901 | user = roar_env_get("USER"); |
---|
[835] | 902 | |
---|
[2] | 903 | // TODO: change this so we support listen() proxys (ssh -R) |
---|
| 904 | if ( mode != MODE_CONNECT ) |
---|
| 905 | return -1; |
---|
| 906 | |
---|
[829] | 907 | if ( !strncmp(proxy_type, "socks", 5) ) { |
---|
[5754] | 908 | proxy_addr = roar_env_get("socks_proxy"); |
---|
[2] | 909 | |
---|
| 910 | proxy_port = 9050; // TOR's default port |
---|
[832] | 911 | } else if ( !strcmp(proxy_type, "http") || !strcmp(proxy_type, "https") ) { |
---|
[830] | 912 | proxy_port = 8080; |
---|
[2] | 913 | |
---|
[5754] | 914 | if ( (proxy_addr = roar_env_get("http_proxy")) == NULL ) |
---|
| 915 | proxy_addr = roar_env_get("https_proxy"); |
---|
[832] | 916 | |
---|
[2] | 917 | if ( proxy_addr == NULL ) |
---|
| 918 | return -1; |
---|
| 919 | |
---|
[830] | 920 | if ( !strncmp(proxy_addr, "http://", 7) ) |
---|
| 921 | proxy_addr += 7; |
---|
[838] | 922 | } else if ( !strncmp(proxy_type, "ssh", 3) ) { |
---|
| 923 | proxy_port = 22; |
---|
[5754] | 924 | proxy_addr = roar_env_get("ssh_proxy"); |
---|
[838] | 925 | no_fh = 1; |
---|
[830] | 926 | } |
---|
[2] | 927 | |
---|
[1008] | 928 | proxy_addr_buf[1023] = 0; |
---|
| 929 | strncpy(proxy_addr_buf, proxy_addr, 1023); |
---|
| 930 | proxy_addr = proxy_addr_buf; |
---|
| 931 | |
---|
[837] | 932 | if ( (sep = strstr(proxy_type, "/")) != NULL ) |
---|
| 933 | opts = sep+1; |
---|
| 934 | |
---|
[830] | 935 | if ( proxy_addr == NULL ) |
---|
| 936 | return -1; |
---|
[2] | 937 | |
---|
[836] | 938 | if ( (sep = strstr(proxy_addr, "@")) != NULL ) { |
---|
| 939 | *sep = 0; |
---|
| 940 | user = proxy_addr; |
---|
| 941 | proxy_addr = sep+1; |
---|
| 942 | |
---|
| 943 | if ( (sep = strstr(user, ":")) != NULL ) { |
---|
| 944 | *sep = 0; |
---|
| 945 | pw = sep+1; |
---|
| 946 | } |
---|
| 947 | } |
---|
| 948 | |
---|
[1008] | 949 | 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); |
---|
| 950 | |
---|
[4028] | 951 | for (i = 0; proxy_addr[i] != 0 && proxy_addr[i] != ':' && i < (ROAR_SOCKET_MAX_HOSTNAMELEN - 1); i++) |
---|
[830] | 952 | proxy_host[i] = proxy_addr[i]; |
---|
| 953 | proxy_host[i] = 0; |
---|
[2] | 954 | |
---|
[830] | 955 | if ( i == 0 ) // no hostname found |
---|
| 956 | return -1; |
---|
| 957 | |
---|
| 958 | if ( proxy_addr[i] == ':' ) |
---|
| 959 | proxy_port = atoi(&proxy_addr[i+1]); |
---|
| 960 | |
---|
[838] | 961 | if ( ! no_fh ) { |
---|
| 962 | if ( (fh = roar_socket_open(mode, type, proxy_host, proxy_port)) == -1) { |
---|
| 963 | return -1; |
---|
| 964 | } |
---|
[829] | 965 | } |
---|
[2] | 966 | |
---|
[829] | 967 | if ( !strcmp(proxy_type, "socks4a") ) { // for TOR, the only supported type at the moment |
---|
[833] | 968 | code = roar_socket_open_socks4a; |
---|
| 969 | } else if ( !strcmp(proxy_type, "socks4d") ) { // DECnet |
---|
| 970 | code = roar_socket_open_socks4d; |
---|
| 971 | } else if ( !strcmp(proxy_type, "socks4") ) { // good old SOCKS4 |
---|
| 972 | code = roar_socket_open_socks4; |
---|
| 973 | } else if ( !strcmp(proxy_type, "http") ) { // HTTP CONNECT |
---|
| 974 | code = roar_socket_open_http; |
---|
[839] | 975 | } else if ( !strncmp(proxy_type, "ssh", 3) ) { // SSH... |
---|
[1063] | 976 | #ifdef ROAR_HAVE_BIN_SSH |
---|
[839] | 977 | code = roar_socket_open_ssh; |
---|
[1063] | 978 | #else |
---|
| 979 | ROAR_ERR("roar_socket_open_proxy(*): No SSH support compiled in"); |
---|
| 980 | #endif |
---|
[833] | 981 | } else { |
---|
| 982 | return -1; // unknown type |
---|
| 983 | } |
---|
[2] | 984 | |
---|
[833] | 985 | if ( code != NULL ) { |
---|
[838] | 986 | if ( no_fh ) { |
---|
| 987 | fh = code(mode, fh, host, port, user, pw, opts); |
---|
| 988 | } else { |
---|
| 989 | if ( code(mode, fh, host, port, user, pw, opts) == -1 ) { |
---|
| 990 | close(fh); |
---|
| 991 | return -1; |
---|
| 992 | } |
---|
[829] | 993 | } |
---|
| 994 | |
---|
| 995 | return fh; |
---|
[833] | 996 | } |
---|
[829] | 997 | |
---|
[833] | 998 | close(fh); |
---|
| 999 | return -1; |
---|
[2] | 1000 | } |
---|
| 1001 | |
---|
| 1002 | // protocoll dependet proxy code: |
---|
| 1003 | |
---|
[5375] | 1004 | 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] | 1005 | #ifndef ROAR_TARGET_MICROCONTROLLER |
---|
[829] | 1006 | struct hostent * he; |
---|
| 1007 | |
---|
| 1008 | if ( (he = gethostbyname(host)) == NULL ) { |
---|
| 1009 | ROAR_ERR("roar_socket_open_socks4(*): Can\'t resolve host name '%s'", host); |
---|
| 1010 | return -1; |
---|
| 1011 | } |
---|
| 1012 | |
---|
[834] | 1013 | return roar_socket_open_socks4x(mode, fh, he->h_addr, port, NULL, 0, user); |
---|
[3897] | 1014 | #else |
---|
| 1015 | return -1; |
---|
| 1016 | #endif |
---|
[829] | 1017 | } |
---|
| 1018 | |
---|
[5375] | 1019 | 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] | 1020 | return roar_socket_open_socks4x(mode, fh, "\0\0\0\1", port, host, strlen(host)+1, user); |
---|
[829] | 1021 | } |
---|
| 1022 | |
---|
[5375] | 1023 | 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] | 1024 | size_t len = strlen(host)+1; |
---|
| 1025 | char * dp; |
---|
| 1026 | |
---|
| 1027 | if ( port == 0 ) { |
---|
| 1028 | if ( (dp = strstr(host, "::")) == NULL ) |
---|
| 1029 | return -1; |
---|
| 1030 | |
---|
| 1031 | len--; |
---|
| 1032 | *dp = 0; |
---|
| 1033 | memmove(dp+1, dp+2, len - (dp-host) - 1); |
---|
| 1034 | } |
---|
| 1035 | |
---|
[834] | 1036 | return roar_socket_open_socks4x(mode, fh, "\0\2\0\0", port, host, len, user); |
---|
[829] | 1037 | } |
---|
| 1038 | |
---|
[5375] | 1039 | 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] | 1040 | char buf[9]; |
---|
[835] | 1041 | int len; |
---|
[2] | 1042 | |
---|
| 1043 | buf[0] = 0x04; |
---|
| 1044 | buf[1] = mode == MODE_CONNECT ? 0x01 : 0x02; |
---|
| 1045 | *((uint16_t*)&buf[2]) = htons(port); |
---|
[829] | 1046 | memcpy(buf+4, host, 4); |
---|
[835] | 1047 | |
---|
| 1048 | if ( user == NULL ) { |
---|
| 1049 | buf[8] = 0x00; |
---|
| 1050 | len = 9; |
---|
| 1051 | } else { |
---|
| 1052 | len = 8; |
---|
| 1053 | } |
---|
[2] | 1054 | |
---|
[835] | 1055 | if ( write(fh, buf, len) != len ) |
---|
[2] | 1056 | return -1; |
---|
| 1057 | |
---|
[835] | 1058 | if ( user != NULL ) { |
---|
| 1059 | len = strlen(user) + 1; |
---|
| 1060 | if ( write(fh, user, len) != len ) |
---|
| 1061 | return -1; |
---|
| 1062 | } |
---|
| 1063 | |
---|
[829] | 1064 | if ( app_len > 0 ) |
---|
[5270] | 1065 | if ( write(fh, app, app_len) != (ssize_t)app_len ) |
---|
[829] | 1066 | return -1; |
---|
[2] | 1067 | |
---|
| 1068 | if ( read(fh, buf, 8) != 8 ) |
---|
| 1069 | return -1; |
---|
| 1070 | |
---|
| 1071 | if ( buf[1] != 0x5a ) |
---|
| 1072 | return -1; |
---|
| 1073 | |
---|
| 1074 | return 0; |
---|
| 1075 | } |
---|
| 1076 | |
---|
[5375] | 1077 | 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] | 1078 | char buf[1024]; |
---|
| 1079 | int len; |
---|
| 1080 | |
---|
| 1081 | if ( port == 0 || host == NULL ) |
---|
| 1082 | return -1; |
---|
| 1083 | |
---|
| 1084 | if ( *host == '/' ) // AF_UNIX |
---|
| 1085 | return -1; |
---|
| 1086 | |
---|
[5896] | 1087 | if ( (len = snprintf(buf, sizeof(buf), "CONNECT %s:%i HTTP/1.0\r\nUser-Agent: libroar\r\n\r\n", host, port)) == -1 ) |
---|
[831] | 1088 | return -1; |
---|
| 1089 | |
---|
| 1090 | if ( write(fh, buf, len) != len ) |
---|
| 1091 | return -1; |
---|
| 1092 | |
---|
[5896] | 1093 | while ( (len = read(fh, buf, sizeof(buf))) ) { |
---|
| 1094 | if ( len == sizeof(buf) ) { // overlong lion |
---|
[831] | 1095 | return -1; |
---|
| 1096 | } else if ( len == 2 && buf[0] == '\r' && buf[1] == '\n' ) { |
---|
| 1097 | break; |
---|
| 1098 | } else if ( len == 1 && (buf[0] == '\r' || buf[0] == '\n') ) { // bad proxy or devel trying to debug ;) |
---|
| 1099 | break; |
---|
| 1100 | } else if ( len >= 4 && buf[len-4] == '\r' && buf[len-3] == '\n' && buf[len-2] == '\r' && buf[len-1] == '\n' ) { |
---|
| 1101 | break; |
---|
| 1102 | } |
---|
| 1103 | } |
---|
| 1104 | |
---|
| 1105 | return 0; |
---|
[830] | 1106 | } |
---|
| 1107 | |
---|
[839] | 1108 | |
---|
[1063] | 1109 | #ifdef ROAR_HAVE_BIN_SSH |
---|
[5375] | 1110 | static int roar_socket_open_ssh (int mode, int fh, const char * host, int port, const char * user, const char * pw, const char * opts) { |
---|
[5754] | 1111 | const char * proxy_addr = roar_env_get("ssh_proxy"); |
---|
[839] | 1112 | char * sep; |
---|
[5895] | 1113 | char * bin_ssh; |
---|
[5896] | 1114 | char cmd[1024] = "", rcmd[1024] = ""; |
---|
[839] | 1115 | int proxy_port = 22; |
---|
[840] | 1116 | int use_socat = 0; |
---|
[839] | 1117 | int r; |
---|
| 1118 | int socks[2]; |
---|
| 1119 | |
---|
| 1120 | if ( host == NULL ) |
---|
| 1121 | return -1; |
---|
| 1122 | |
---|
| 1123 | if ( *host == '/' ) |
---|
[840] | 1124 | use_socat = 1; |
---|
[839] | 1125 | |
---|
| 1126 | if ( mode == MODE_LISTEN ) |
---|
| 1127 | return -1; |
---|
| 1128 | |
---|
| 1129 | if ( proxy_addr == NULL ) |
---|
| 1130 | return -1; |
---|
| 1131 | |
---|
[840] | 1132 | if ( opts != NULL ) { |
---|
| 1133 | if ( !strcmp(opts, "socat") ) { |
---|
| 1134 | use_socat = 1; |
---|
| 1135 | } else if ( !strcmp(opts, "netcat") ) { |
---|
| 1136 | use_socat = 0; |
---|
| 1137 | } else { |
---|
| 1138 | return -1; |
---|
| 1139 | } |
---|
| 1140 | } |
---|
| 1141 | |
---|
[1008] | 1142 | ROAR_DBG("roar_socket_open_ssh(*): proxy_addr='%s'", proxy_addr); |
---|
| 1143 | |
---|
[839] | 1144 | if ( (sep = strstr(proxy_addr, "@")) != NULL ) |
---|
| 1145 | proxy_addr = sep+1; |
---|
| 1146 | |
---|
| 1147 | if ( (sep = strstr(proxy_addr, ":")) != NULL ) { |
---|
| 1148 | *sep = 0; |
---|
| 1149 | proxy_port = atoi(sep+1); |
---|
| 1150 | } |
---|
| 1151 | |
---|
| 1152 | |
---|
| 1153 | if ( !strcmp(host, "+fork") ) { |
---|
[1068] | 1154 | strncpy(rcmd, "roard --no-listen --client-fh 0", 32); |
---|
[839] | 1155 | } else { |
---|
[840] | 1156 | if ( use_socat ) { |
---|
| 1157 | if ( *host == '/' ) { |
---|
[5896] | 1158 | snprintf(rcmd, sizeof(rcmd)-1, "socat stdio unix-connect:\"%s\"", host); |
---|
[840] | 1159 | } else { |
---|
[5896] | 1160 | snprintf(rcmd, sizeof(rcmd)-1, "socat stdio tcp:\"%s\":%i", host, port); |
---|
[840] | 1161 | } |
---|
| 1162 | } else { |
---|
[5896] | 1163 | snprintf(rcmd, sizeof(rcmd)-1, "$(which netcat nc 2> /dev/null | grep -v \" \" | head -n 1) \"%s\" %i", host, port); |
---|
[840] | 1164 | } |
---|
| 1165 | |
---|
[5896] | 1166 | rcmd[sizeof(rcmd)-1] = 0; |
---|
[839] | 1167 | } |
---|
| 1168 | |
---|
[1008] | 1169 | ROAR_DBG("roar_socket_open_ssh(*): proxy_port=%i, user='%s', proxy_addr='%s'", proxy_port, user, proxy_addr); |
---|
[1033] | 1170 | ROAR_DBG("roar_socket_open_ssh(*): rcmd: %s", rcmd); |
---|
[5895] | 1171 | bin_ssh = roar_libroar_get_path("bin-ssh", 0, NULL, NULL); |
---|
| 1172 | if ( bin_ssh == NULL ) |
---|
| 1173 | return -1; |
---|
| 1174 | |
---|
[5896] | 1175 | snprintf(cmd, sizeof(cmd)-1, "%s -p %i -l '%s' '%s' '%s'", bin_ssh, proxy_port, user, proxy_addr, rcmd); |
---|
| 1176 | cmd[sizeof(cmd)-1] = 0; |
---|
[839] | 1177 | |
---|
[5895] | 1178 | roar_mm_free(bin_ssh); |
---|
| 1179 | |
---|
[839] | 1180 | |
---|
[3897] | 1181 | // TODO: get this more portable! |
---|
| 1182 | #ifdef AF_UNIX |
---|
[839] | 1183 | if ( socketpair(AF_UNIX, SOCK_STREAM, 0, socks) == -1 ) { |
---|
| 1184 | return -1; |
---|
| 1185 | } |
---|
[3897] | 1186 | #else |
---|
| 1187 | return -1; |
---|
| 1188 | #endif |
---|
[839] | 1189 | |
---|
[5373] | 1190 | r = roar_fork(NULL); |
---|
[839] | 1191 | |
---|
| 1192 | if ( r == -1 ) { // error! |
---|
| 1193 | ROAR_ERR("roar_socket_open_ssh(*): Can not fork: %s", strerror(errno)); |
---|
| 1194 | close(socks[0]); |
---|
| 1195 | close(socks[1]); |
---|
| 1196 | return -1; |
---|
| 1197 | } else if ( r == 0 ) { // we are the child |
---|
[5619] | 1198 | roar_watchdog_stop(); |
---|
| 1199 | |
---|
[839] | 1200 | close(socks[0]); |
---|
| 1201 | |
---|
| 1202 | close(ROAR_STDIN ); // we do not want roard to have any standard input |
---|
| 1203 | close(ROAR_STDOUT); // STDOUT is also not needed, so we close it, |
---|
| 1204 | // but STDERR we keep open for error messages. |
---|
| 1205 | |
---|
| 1206 | dup2(socks[1], 0); |
---|
| 1207 | dup2(socks[1], 1); |
---|
| 1208 | |
---|
[5364] | 1209 | execlp("sh", "sh", "-c", cmd, (_LIBROAR_GOOD_CAST char*)NULL); |
---|
[839] | 1210 | |
---|
| 1211 | // we are still alive? |
---|
| 1212 | ROAR_ERR("roar_socket_open_ssh(*): alive after exec(), that's bad!"); |
---|
[5619] | 1213 | ROAR_U_EXIT(1); |
---|
[839] | 1214 | } else { // we are the parent |
---|
| 1215 | close(socks[1]); |
---|
| 1216 | return socks[0]; |
---|
| 1217 | } |
---|
| 1218 | return -1; |
---|
| 1219 | } |
---|
[1063] | 1220 | #endif |
---|
[839] | 1221 | |
---|
[1087] | 1222 | #endif // ROAR_SUPPORT_PROXY |
---|
| 1223 | |
---|
[0] | 1224 | //ll |
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