[3877] | 1 | //error.c: |
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| 2 | |
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| 3 | /* |
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[4708] | 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010-2011 |
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[3877] | 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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| 21 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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| 22 | * Boston, MA 02110-1301, USA. |
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| 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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| 36 | #include "libroar.h" |
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| 37 | |
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[4869] | 38 | int roar_errno = ROAR_ERROR_NONE; |
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| 39 | |
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[3877] | 40 | int roar_err_int(struct roar_error_frame * frame) { |
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| 41 | if ( frame == NULL ) |
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| 42 | return -1; |
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| 43 | |
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| 44 | memset(frame, 0, sizeof(struct roar_error_frame)); |
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| 45 | |
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| 46 | frame->cmd = -1; |
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| 47 | frame->ra_errno = -1; |
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| 48 | frame->ra_suberrno = -1; |
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| 49 | frame->p_errno = -1; |
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| 50 | |
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| 51 | return 0; |
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| 52 | } |
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| 53 | |
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| 54 | void * roar_err_buildmsg(struct roar_message * mes, struct roar_error_frame * frame) { |
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| 55 | int16_t * d; |
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| 56 | |
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| 57 | if ( mes == NULL || frame == NULL ) |
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| 58 | return NULL; |
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| 59 | |
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| 60 | memset(mes, 0, sizeof(struct roar_message)); |
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| 61 | |
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| 62 | d = (int16_t*)mes->data; |
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| 63 | |
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| 64 | mes->datalen = 8 + frame->datalen; |
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| 65 | frame->data = &(mes->data[8]); |
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| 66 | |
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| 67 | mes->data[0] = 0; // version. |
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| 68 | mes->data[1] = frame->cmd; |
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| 69 | mes->data[2] = frame->ra_errno; |
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| 70 | mes->data[3] = frame->ra_suberrno; |
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| 71 | d[2] = ROAR_HOST2NET16(frame->p_errno); |
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| 72 | d[3] = ROAR_HOST2NET16(frame->flags); |
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| 73 | |
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| 74 | return frame->data; |
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| 75 | } |
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| 76 | |
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| 77 | int roar_err_parsemsg(struct roar_message * mes, struct roar_error_frame * frame) { |
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| 78 | int16_t * d; |
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| 79 | |
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| 80 | if ( mes == NULL || frame == NULL ) |
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| 81 | return -1; |
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| 82 | |
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| 83 | d = (int16_t*)mes->data; |
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| 84 | |
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| 85 | if ( mes->datalen < 8 ) |
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| 86 | return -1; |
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| 87 | |
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| 88 | if ( mes->data[0] != 0 ) |
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| 89 | return -1; |
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| 90 | |
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| 91 | frame->cmd = mes->data[1]; |
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| 92 | frame->ra_errno = mes->data[2]; |
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| 93 | frame->ra_suberrno = mes->data[3]; |
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| 94 | frame->p_errno = ROAR_NET2HOST16(d[2]); |
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| 95 | frame->flags = ROAR_NET2HOST16(d[3]); |
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| 96 | |
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| 97 | frame->datalen = mes->datalen - 8; |
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| 98 | frame->data = &(mes->data[8]); |
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| 99 | |
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| 100 | return 0; |
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| 101 | } |
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| 102 | |
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[4869] | 103 | int * roar_errno2(void) { |
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| 104 | return &roar_errno; |
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| 105 | } |
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| 106 | |
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[4185] | 107 | void roar_err_clear(void) { |
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[4869] | 108 | *roar_errno2() = ROAR_ERROR_NONE; |
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| 109 | } |
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| 110 | |
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| 111 | void roar_err_set(const int error) { |
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| 112 | *roar_errno2() = error; |
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[4185] | 113 | } |
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| 114 | |
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| 115 | void roar_err_from_errno(void) { |
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[4869] | 116 | int _roar_errno = ROAR_ERROR_NONE; |
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| 117 | |
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[4185] | 118 | switch (errno) { |
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| 119 | #ifdef EPERM |
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[4869] | 120 | case EPERM: _roar_errno = ROAR_ERROR_PERM; break; |
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[4185] | 121 | #endif |
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| 122 | #ifdef ENOENT |
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[4869] | 123 | case ENOENT: _roar_errno = ROAR_ERROR_NOENT; break; |
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[4185] | 124 | #endif |
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| 125 | #ifdef EBADMSG |
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[4869] | 126 | case EBADMSG: _roar_errno = ROAR_ERROR_BADMSG; break; |
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[4185] | 127 | #endif |
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| 128 | #ifdef EBUSY |
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[4869] | 129 | case EBUSY: _roar_errno = ROAR_ERROR_BUSY; break; |
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[4185] | 130 | #endif |
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| 131 | #ifdef ECONNREFUSED |
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[4869] | 132 | case ECONNREFUSED: _roar_errno = ROAR_ERROR_CONNREFUSED; break; |
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[4185] | 133 | #endif |
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| 134 | #ifdef ENOSYS |
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[4869] | 135 | case ENOSYS: _roar_errno = ROAR_ERROR_NOSYS; break; |
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[4185] | 136 | #endif |
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| 137 | #ifdef ENOTSUP |
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[4869] | 138 | case ENOTSUP: _roar_errno = ROAR_ERROR_NOTSUP; break; |
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[4185] | 139 | #endif |
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| 140 | #ifdef EPIPE |
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[4869] | 141 | case EPIPE: _roar_errno = ROAR_ERROR_PIPE; break; |
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[4185] | 142 | #endif |
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| 143 | #ifdef EPROTO |
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[4869] | 144 | case EPROTO: _roar_errno = ROAR_ERROR_PROTO; break; |
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[4185] | 145 | #endif |
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| 146 | #ifdef ERANGE |
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[4869] | 147 | case ERANGE: _roar_errno = ROAR_ERROR_RANGE; break; |
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[4185] | 148 | #endif |
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| 149 | #ifdef EMSGSIZE |
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[4869] | 150 | case EMSGSIZE: _roar_errno = ROAR_ERROR_MSGSIZE; break; |
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[4185] | 151 | #endif |
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| 152 | #ifdef ENOMEM |
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[4869] | 153 | case ENOMEM: _roar_errno = ROAR_ERROR_NOMEM; break; |
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[4185] | 154 | #endif |
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| 155 | #ifdef EINVAL |
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[4869] | 156 | case EINVAL: _roar_errno = ROAR_ERROR_INVAL; break; |
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[4185] | 157 | #endif |
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| 158 | default: |
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[4869] | 159 | _roar_errno = ROAR_ERROR_UNKNOWN; |
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[4185] | 160 | break; |
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| 161 | } |
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[4869] | 162 | |
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| 163 | roar_err_set(_roar_errno); |
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[4185] | 164 | } |
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| 165 | |
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| 166 | void roar_err_to_errno(void) { |
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[4869] | 167 | int * err = roar_errno2(); |
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| 168 | switch (*err) { |
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[4185] | 169 | case ROAR_ERROR_NONE: |
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| 170 | errno = 0; // just gussing |
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| 171 | break; |
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| 172 | #ifdef EPERM |
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| 173 | case ROAR_ERROR_PERM: |
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| 174 | errno = EPERM; |
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| 175 | break; |
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| 176 | #endif |
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| 177 | #ifdef ENOENT |
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| 178 | case ROAR_ERROR_NOENT: |
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| 179 | errno = ENOENT; |
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| 180 | break; |
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| 181 | #endif |
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| 182 | #ifdef EBADMSG |
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| 183 | case ROAR_ERROR_BADMSG: |
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| 184 | errno = EBADMSG; |
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| 185 | break; |
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| 186 | #endif |
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| 187 | #ifdef EBUSY |
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| 188 | case ROAR_ERROR_BUSY: |
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| 189 | errno = EBUSY; |
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| 190 | break; |
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| 191 | #endif |
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| 192 | #ifdef ECONNREFUSED |
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| 193 | case ROAR_ERROR_CONNREFUSED: |
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| 194 | errno = ECONNREFUSED; |
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| 195 | break; |
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| 196 | #endif |
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| 197 | #ifdef ENOSYS |
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| 198 | case ROAR_ERROR_NOSYS: |
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| 199 | errno = ENOSYS; |
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| 200 | break; |
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| 201 | #endif |
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| 202 | #ifdef ENOTSUP |
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| 203 | case ROAR_ERROR_NOTSUP: |
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| 204 | errno = ENOTSUP; |
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| 205 | break; |
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| 206 | #endif |
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| 207 | #ifdef EPIPE |
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| 208 | case ROAR_ERROR_PIPE: |
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| 209 | errno = EPIPE; |
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| 210 | break; |
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| 211 | #endif |
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| 212 | #ifdef EPROTO |
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| 213 | case ROAR_ERROR_PROTO: |
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| 214 | errno = EPROTO; |
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| 215 | break; |
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| 216 | #endif |
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| 217 | #ifdef ERANGE |
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| 218 | case ROAR_ERROR_RANGE: |
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| 219 | errno = ERANGE; |
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| 220 | break; |
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| 221 | #endif |
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| 222 | #ifdef EMSGSIZE |
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| 223 | case ROAR_ERROR_MSGSIZE: |
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| 224 | errno = EMSGSIZE; |
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| 225 | break; |
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| 226 | #endif |
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| 227 | #ifdef ENOMEM |
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| 228 | case ROAR_ERROR_NOMEM: |
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| 229 | errno = ENOMEM; |
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| 230 | break; |
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| 231 | #endif |
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| 232 | #ifdef EINVAL |
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| 233 | case ROAR_ERROR_INVAL: |
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| 234 | errno = EINVAL; |
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| 235 | break; |
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| 236 | #endif |
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| 237 | default: |
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| 238 | #ifdef EINVAL |
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| 239 | errno = EINVAL; |
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| 240 | #else |
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| 241 | errno = -1; // just guess |
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| 242 | #endif |
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| 243 | break; |
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| 244 | } |
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| 245 | } |
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| 246 | |
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[4793] | 247 | |
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| 248 | const char * roar_error2str(const int error) { |
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| 249 | const struct { |
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| 250 | const int err; |
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| 251 | const char * msg; |
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| 252 | } msgs[] = { |
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| 253 | {ROAR_ERROR_NONE, "No error"}, |
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| 254 | {ROAR_ERROR_PERM, "Operation not permitted"}, |
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| 255 | {ROAR_ERROR_NOENT, "No such object, file or directory"}, |
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| 256 | {ROAR_ERROR_BADMSG, "Bad message"}, |
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| 257 | {ROAR_ERROR_BUSY, "Device or resource busy"}, |
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| 258 | {ROAR_ERROR_CONNREFUSED, "Connection refused"}, |
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| 259 | {ROAR_ERROR_NOSYS, "Function not implemented"}, |
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| 260 | {ROAR_ERROR_NOTSUP, "Operation not supported"}, |
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| 261 | {ROAR_ERROR_PIPE, "Broken pipe"}, |
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| 262 | {ROAR_ERROR_PROTO, "Protocol error"}, |
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| 263 | {ROAR_ERROR_RANGE, "Result too large or parameter out of range"}, |
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| 264 | {ROAR_ERROR_MSGSIZE, "Message too long"}, |
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| 265 | {ROAR_ERROR_NOMEM, "Not enough space"}, |
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| 266 | {ROAR_ERROR_INVAL, "Invalid argument"}, |
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| 267 | {-1, NULL} |
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| 268 | }; |
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| 269 | int i; |
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| 270 | |
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| 271 | for (i = 0; msgs[i].msg != NULL; i++) |
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| 272 | if ( msgs[i].err == error ) |
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| 273 | return msgs[i].msg; |
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| 274 | |
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| 275 | return NULL; |
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| 276 | } |
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| 277 | |
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[3877] | 278 | //ll |
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