1explain_getdomainname_or_dieL(i3b)rary Functions Maneuxapllain_getdomainname_or_die(3)
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NAME

6       explain_getdomainname_or_die - get domain name and report errors
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SYNOPSIS

9       #include <libexplain/getdomainname.h>
10       void explain_getdomainname_or_die(char *data, size_t data_size);
11       int explain_getdomainname_on_error(char *data, size_t data_size);
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DESCRIPTION

14       The  explain_getdomainname_or_die  function  is used to call the getdo‐
15       mainname(2) system call. On failure an explanation will be  printed  to
16       stderr,  obtained  from the explain_getdomainname(3) function, and then
17       the process terminates by calling exit(EXIT_FAILURE).
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19       The explain_getdomainname_on_error function is used to call the  getdo‐
20       mainname(2)  system  call. On failure an explanation will be printed to
21       stderr, obtained from the explain_getdomainname(3) function, but  still
22       returns to the caller.
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24       data    The  data, exactly as to be passed to the getdomainname(2) sys‐
25               tem call.
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27       data_size
28               The data_size, exactly as to be passed to the  getdomainname(2)
29               system call.
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RETURN VALUE

32       The  explain_getdomainname_or_die function only returns on success, see
33       getdomainname(2) for more information. On failure, prints  an  explana‐
34       tion and exits, it does not return.
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36       The  explain_getdomainname_on_error  function  always returns the value
37       return by the wrapped getdomainname(2) system call.
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EXAMPLE

40       The explain_getdomainname_or_die function is intended to be used  in  a
41       fashion similar to the following example:
42              explain_getdomainname_or_die(data, data_size);
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SEE ALSO

45       getdomainname(2)
46               get domain name
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48       explain_getdomainname(3)
49               explain getdomainname(2) errors
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51       exit(2) terminate the calling process
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54       libexplain version 1.4
55       Copyright (C) 2009 Peter Miller
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59                                               explain_getdomainname_or_die(3)
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