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#include "tcp_internal.h"

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int tcp_sock_create (const struct addrinfo *addr, error_t *err)

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{

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    int sock;

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    // create a new socket using addr->ai_family/socktype/protocol

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    if ((sock = socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol)) < 0)

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        JUMP_SET_ERROR_ERRNO(err, ERR_SOCKET);

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    return sock;

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error:

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    return -ERROR_CODE(err);    

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}

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err_t tcp_sock_error (evutil_socket_t sock, error_t *err)

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{

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    int optval;

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    socklen_t optlen;

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    RESET_ERROR(err);

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    // init params

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    optval = 0;

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    optlen = sizeof(optval);

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    // read error code

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    if (getsockopt(sock, SOL_SOCKET, SO_ERROR, &optval, &optlen))

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        RETURN_SET_ERROR_ERRNO(err, ERR_GETSOCKOPT);

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    // sanity-check optlen... not sure if this is sensible

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    if (optlen != sizeof(optval))

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        RETURN_SET_ERROR_EXTRA(err, ERR_GETSOCKOPT, EINVAL);

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    // then store the system error code

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    ERROR_EXTRA(err) = optval;

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    // ok

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    return SUCCESS;

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}

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