| /** |
| * @file |
| * Error Management module |
| * |
| */ |
| |
| /* |
| * Copyright (c) 2001-2004 Swedish Institute of Computer Science. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
| * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
| * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
| * OF SUCH DAMAGE. |
| * |
| * This file is part of the lwIP TCP/IP stack. |
| * |
| * Author: Adam Dunkels <adam@sics.se> |
| * |
| */ |
| |
| #include "lwip/err.h" |
| #include "lwip/def.h" |
| #include "lwip/sys.h" |
| |
| #include "lwip/errno.h" |
| |
| #if !NO_SYS |
| /** Table to quickly map an lwIP error (err_t) to a socket error |
| * by using -err as an index */ |
| static const int err_to_errno_table[] = { |
| 0, /* ERR_OK 0 No error, everything OK. */ |
| ENOMEM, /* ERR_MEM -1 Out of memory error. */ |
| ENOBUFS, /* ERR_BUF -2 Buffer error. */ |
| EWOULDBLOCK, /* ERR_TIMEOUT -3 Timeout */ |
| EHOSTUNREACH, /* ERR_RTE -4 Routing problem. */ |
| EINPROGRESS, /* ERR_INPROGRESS -5 Operation in progress */ |
| EINVAL, /* ERR_VAL -6 Illegal value. */ |
| EWOULDBLOCK, /* ERR_WOULDBLOCK -7 Operation would block. */ |
| EADDRINUSE, /* ERR_USE -8 Address in use. */ |
| EALREADY, /* ERR_ALREADY -9 Already connecting. */ |
| EISCONN, /* ERR_ISCONN -10 Conn already established.*/ |
| ENOTCONN, /* ERR_CONN -11 Not connected. */ |
| -1, /* ERR_IF -12 Low-level netif error */ |
| ECONNABORTED, /* ERR_ABRT -13 Connection aborted. */ |
| ECONNRESET, /* ERR_RST -14 Connection reset. */ |
| ENOTCONN, /* ERR_CLSD -15 Connection closed. */ |
| EIO /* ERR_ARG -16 Illegal argument. */ |
| }; |
| |
| int |
| err_to_errno(err_t err) |
| { |
| if ((err > 0) || (-err >= (err_t)LWIP_ARRAYSIZE(err_to_errno_table))) { |
| return EIO; |
| } |
| return err_to_errno_table[-err]; |
| } |
| #endif /* !NO_SYS */ |
| |
| #ifdef LWIP_DEBUG |
| |
| static const char *err_strerr[] = { |
| "Ok.", /* ERR_OK 0 */ |
| "Out of memory error.", /* ERR_MEM -1 */ |
| "Buffer error.", /* ERR_BUF -2 */ |
| "Timeout.", /* ERR_TIMEOUT -3 */ |
| "Routing problem.", /* ERR_RTE -4 */ |
| "Operation in progress.", /* ERR_INPROGRESS -5 */ |
| "Illegal value.", /* ERR_VAL -6 */ |
| "Operation would block.", /* ERR_WOULDBLOCK -7 */ |
| "Address in use.", /* ERR_USE -8 */ |
| "Already connecting.", /* ERR_ALREADY -9 */ |
| "Already connected.", /* ERR_ISCONN -10 */ |
| "Not connected.", /* ERR_CONN -11 */ |
| "Low-level netif error.", /* ERR_IF -12 */ |
| "Connection aborted.", /* ERR_ABRT -13 */ |
| "Connection reset.", /* ERR_RST -14 */ |
| "Connection closed.", /* ERR_CLSD -15 */ |
| "Illegal argument." /* ERR_ARG -16 */ |
| }; |
| |
| /** |
| * Convert an lwip internal error to a string representation. |
| * |
| * @param err an lwip internal err_t |
| * @return a string representation for err |
| */ |
| const char * |
| lwip_strerr(err_t err) |
| { |
| if ((err > 0) || (-err >= (err_t)LWIP_ARRAYSIZE(err_strerr))) { |
| return "Unknown error."; |
| } |
| return err_strerr[-err]; |
| } |
| |
| #endif /* LWIP_DEBUG */ |