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- AAAACCCCCCCCEEEEPPPPTTTT((((2222)))) AAAACCCCCCCCEEEEPPPPTTTT((((2222))))
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- NNNNAAAAMMMMEEEE
- accept - accept a connection on a socket
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- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- ####iiiinnnncccclllluuuuddddeeee <<<<ssssyyyyssss////ttttyyyyppppeeeessss....hhhh>>>>
- ####iiiinnnncccclllluuuuddddeeee <<<<ssssyyyyssss////ssssoooocccckkkkeeeetttt....hhhh>>>>
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- iiiinnnntttt aaaacccccccceeeepppptttt ((((iiiinnnntttt ssss,,,, ssssttttrrrruuuucccctttt ssssoooocccckkkkaaaaddddddddrrrr ****aaaaddddddddrrrr,,,, iiiinnnntttt ****aaaaddddddddrrrrlllleeeennnn))));;;;
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- The argument _s is a socket that has been created with _s_o_c_k_e_t(2), bound to
- an address with _b_i_n_d(2), and is listening for connections after a
- _l_i_s_t_e_n(2). _A_c_c_e_p_t extracts the first connection on the queue of pending
- connections, creates a new socket with the same properties of _s and
- allocates a new file descriptor for the socket. If no pending
- connections are present on the queue, and the socket is not marked as
- non-blocking, _a_c_c_e_p_t blocks the caller until a connection is present. If
- the socket is marked non-blocking and no pending connections are present
- on the queue, _a_c_c_e_p_t returns an error as described below. The accepted
- socket may not be used to accept more connections. The original socket _s
- remains open.
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- If _a_d_d_r is non-zero, it is a result parameter that is filled in with the
- address of the connecting entity, as known to the communications layer.
- The exact format of the _a_d_d_r parameter is determined by the domain in
- which the communication is occurring. The _a_d_d_r_l_e_n is a value-result
- parameter. It should initially contain the amount of space pointed to by
- _a_d_d_r; on return it will contain the actual length (in bytes) of the
- address returned. If _a_d_d_r is zero, _a_d_d_r_l_e_n is ignored.
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- This call is used with connection-based socket types, currently with
- SOCK_STREAM.
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- It is possible to _s_e_l_e_c_t(2) a socket for the purposes of doing an _a_c_c_e_p_t
- by selecting it for read.
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- RRRREEEETTTTUUUURRRRNNNN VVVVAAAALLLLUUUUEEEE
- The call returns -1 on error. If it succeeds, it returns a non-negative
- integer that is a descriptor for the accepted socket.
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- EEEERRRRRRRROOOORRRRSSSS
- The _a_c_c_e_p_t will fail if:
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- [EBADF] The descriptor is invalid.
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- [ENOTSOCK] The descriptor references a file, not a socket.
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- [EOPNOTSUPP] The referenced socket is not of type SOCK_STREAM.
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- [EFAULT] The _a_d_d_r or _a_d_d_r_l_e_n parameter is not in a writable
- part of the user address space.
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- PPPPaaaaggggeeee 1111
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- AAAACCCCCCCCEEEEPPPPTTTT((((2222)))) AAAACCCCCCCCEEEEPPPPTTTT((((2222))))
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- [EWOULDBLOCK] The socket is marked non-blocking and no connections
- are present to be accepted.
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- [EMFILE] The per-process descriptor table is full.
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- [ENFILE] The system file table is full.
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- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- bind(2), connect(2), listen(2), select(2), socket(2)
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- NNNNOOOOTTTTEEEESSSS
- ABI-compliant versions of the above call can be obtained from
- _l_i_b_s_o_c_k_e_t._s_o.
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- When used with a socket of type AF_UNIX, this call does not return a
- valid remote address, unless the remote end was explicitly bound to a
- pathname.
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- PPPPaaaaggggeeee 2222
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