NAME¶
explain_sethostname_or_die - get/set hostname and report errors
SYNOPSIS¶
#include <libexplain/sethostname.h>
void explain_sethostname_or_die(const char *name, size_t name_size);
intexplain_sethostname_on_error(const char *name, size_t name_size);
DESCRIPTION¶
The
explain_sethostname_or_die function is used to call the
sethostname(2) system call. On failure an explanation will be printed
to
stderr, obtained from the
explain_sethostname(3) function,
and then the process terminates by calling exit(EXIT_FAILURE).
The
explain_sethostname_on_error function is used to call the
sethostname(2) system call. On failure an explanation will be printed
to
stderr, obtained from the
explain_sethostname(3) function,
but still returns to the caller.
- name
- The name, exactly as to be passed to the
sethostname(2) system call.
- name_size
- The name_size, exactly as to be passed to the
sethostname(2) system call.
RETURN VALUE¶
The
explain_sethostname_or_die function only returns on success, see
sethostname(2) for more information. On failure, prints an explanation
and exits, it does not return.
The
explain_sethostname_on_error function always returns the value return
by the wrapped
sethostname(2) system call.
EXAMPLE¶
The
explain_sethostname_or_die function is intended to be used in a
fashion similar to the following example:
explain_sethostname_or_die(name, name_size);
SEE ALSO¶
- sethostname(2)
- get/set hostname
- explain_sethostname(3)
- explain sethostname(2) errors
- exit(2)
- terminate the calling process
COPYRIGHT¶
libexplain version 0.52
Copyright (C) 2009 Peter Miller