1explain_getpeername_or_die(3L)ibrary Functions Manuaelxplain_getpeername_or_die(3)
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NAME

6       explain_getpeername_or_die - get name of peer socket and report errors
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SYNOPSIS

9       #include <libexplain/getpeername.h>
10       void explain_getpeername_or_die(int fildes, struct sockaddr *sock_addr,
11       socklen_t *sock_addr_size);
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DESCRIPTION

14       The explain_getpeername_or_die function is used to  call  the  getpeer‐
15       name(2)  system  call.   On  failure  an explanation will be printed to
16       stderr, obtained from explain_getpeername(3), and then the process ter‐
17       minates by calling exit(EXIT_FAILURE).
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19       This  function  is intended to be used in a fashion similar to the fol‐
20       lowing example:
21              struct sockadd sock_addr;
22              socklen_t sock_addr_size = sizeof(sock_addr);
23              explain_getpeername_or_die(fildes, &sock_addr, &sock_addr_size);
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25       fildes  The fildes, exactly as to be passed to the getpeername(2)  sys‐
26               tem call.
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28       sock_addr
29               The  sock_addr,  exactly  as to be passed to the getpeername(2)
30               system call.
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32       sock_addr_size
33               The sock_addr_size, exactly as to be  passed  to  the  getpeer‐
34               name(2) system call.
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36       Returns:
37               This  function  only returns on success, see getpeername(2) for
38               more information.  On failure, prints an explanation and exits.
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SEE ALSO

41       getpeername(2)
42               get name of connected peer socket
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44       explain_getpeername(3)
45               explain getpeername(2) errors
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47       exit(2) terminate the calling process
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50       libexplain version 1.4
51       Copyright (C) 2009 Peter Miller
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55                                                 explain_getpeername_or_die(3)
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