explain_uname_or_die man page

explain_uname_or_die — get information about current kernel and report errors

Synopsis

#include <libexplain/uname.h>

void explain_uname_or_die(struct utsname *data);
int explain_uname_on_error(struct utsname *data);

Description

The explain_uname_or_die function is used to call the uname(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_uname(3) function, and then the process terminates by calling exit(EXIT_FAILURE).

The explain_uname_on_error function is used to call the uname(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_uname(3) function, but still returns to the caller.

data
The data, exactly as to be passed to the uname(2) system call.

Return Value

The explain_uname_or_die function only returns on success, see uname(2) for more information. On failure, prints an explanation and exits, it does not return.

The explain_uname_on_error function always returns the value return by the wrapped uname(2) system call.

Example

The explain_uname_or_die function is intended to be used in a fashion similar to the following example:

explain_uname_or_die(data);

See Also

uname(2)
get name and information about current kernel
explain_uname(3)
explain uname(2) errors
exit(2)
terminate the calling process

Referenced By

explain(3), explain_uname(3).