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explain_tcsetattr_or_die(3) FreeBSD Library Functions Manual explain_tcsetattr_or_die(3)

explain_tcsetattr_or_die - set terminal attributes and report errors

#include <libexplain/tcsetattr.h>
void explain_tcsetattr_or_die(int fildes, int options, const struct termios *data);
 
int explain_tcsetattr_on_error(int fildes, int options, const struct termios *data);

The explain_tcsetattr_or_die function is used to call the tcsetattr(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_tcsetattr(3) function, and then the process terminates by calling exit(EXIT_FAILURE).
The explain_tcsetattr_on_error function is used to call the tcsetattr(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_tcsetattr(3) function, but still returns to the caller.
fildes
The fildes, exactly as to be passed to the tcsetattr(3) system call.
options
The options, exactly as to be passed to the tcsetattr(3) system call.
data
The data, exactly as to be passed to the tcsetattr(3) system call.

The explain_tcsetattr_or_die function only returns on success, see tcsetattr(3) for more information. On failure, prints an explanation and exits, it does not return.
The explain_tcsetattr_on_error function always returns the value return by the wrapped tcsetattr(3) system call.

The explain_tcsetattr_or_die function is intended to be used in a fashion similar to the following example:
explain_tcsetattr_or_die(fildes, options, data);

tcsetattr(3)
set terminal attributes
explain_tcsetattr(3)
explain tcsetattr(3) errors
exit(2)
terminate the calling process

libexplain version 1.3
 
Copyright (C) 2009 Peter Miller

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