Thanks Dirk. I added the same to the lwipopts.h and it works.
Regards
Amit
On Thu, Dec 1, 2016 at 1:57 AM, Dirk Ziegelmeier <d...@ziegelmeier.net>
wrote:
> No, the solution is in errno.h:
>
> Choose one of:
>
> - #define LWIP_PROVIDE_ERRNO 1
> - #define LWIP_ERRNO_INCLUDE "path/my_header_file_containing_errno.h"
>
> HTH
> Dirk
>
>
>
> On Wed, Nov 30, 2016 at 7:45 PM, Amit Ashara <ashara.a...@gmail.com>
> wrote:
>
>> Hello All,
>>
>> When integrating FreeRTOS with lwIP 2.0.0 the following gives an error
>> for missing defines.
>>
>> #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. */
>> };
>> #endif /* !NO_SYS */
>>
>> #if !NO_SYS
>> 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 */
>>
>> The assumption is that if NO_SYS is 0, or an RTOS is used, the socket
>> model will be used. However when not using the socket model this is not
>> true. Instead the following should be done (in my opinion)
>>
>> #if !NO_SYS
>> #if LWIP_SOCKET
>> /** 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. */
>> };
>> #endif /* LWIP_SOCKET */
>> #endif /* !NO_SYS */
>>
>> #if !NO_SYS
>> #if LWIP_SOCKET
>> 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 /* LWIP_SOCKET */
>> #endif /* !NO_SYS */
>>
>> Regards
>> Amit Ashara
>>
>> _______________________________________________
>> lwip-users mailing list
>> lwip-users@nongnu.org
>> https://lists.nongnu.org/mailman/listinfo/lwip-users
>>
>
>
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