explain_ge...ame_or_die(3) Library Functions Manual explain_ge...ame_or_die(3) NAME explain_gethostbyname_or_die - get host address by host name and report er- rors SYNOPSIS #include <libexplain/gethostbyname.h> struct hostent *explain_gethostbyname_or_die(const char *name); struct hostent *explain_gethostbyname_on_error(const char *name); DESCRIPTION The explain_gethostbyname_or_die function is used to call the gethostby- name(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_gethostbyname(3) function, and then the process terminates by calling exit(EXIT_FAILURE). The explain_gethostbyname_on_error function is used to call the gethostby- name(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_gethostbyname(3) function, but still returns to the caller. name The name, exactly as to be passed to the gethostbyname(3) system call. RETURN VALUE The explain_gethostbyname_or_die function only returns on success, see gethostbyname(3) for more information. On failure, prints an explanation and exits, it does not return. The explain_gethostbyname_on_error function always returns the value return by the wrapped gethostbyname(3) system call. EXAMPLE The explain_gethostbyname_or_die function is intended to be used in a fash- ion similar to the following example: struct hostent *result = explain_gethostbyname_or_die(name); SEE ALSO gethostbyname(3) get host address given host name explain_gethostbyname(3) explain gethostbyname(3) errors exit(2) terminate the calling process COPYRIGHT libexplain version 1.3 Copyright (C) 2013 Peter Miller explain_ge...ame_or_die(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | EXAMPLE | SEE ALSO | COPYRIGHT
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