tuklib_exit.h File Reference

Close stdout and stderr, and exit. More...

#include "tuklib_common.h"

Go to the source code of this file.

Macros
#define	tuklib_exit   TUKLIB_SYMBOL(tuklib_exit)

Functions
void	tuklib_exit (int status, int err_status, int show_error) tuklib_attr_noreturn

Detailed Description

Close stdout and stderr, and exit.

Note

Requires tuklib_progname and tuklib_gettext modules

Definition in file tuklib_exit.h.

Macro Definition Documentation

tuklib_exit

#define tuklib_exit   TUKLIB_SYMBOL(tuklib_exit)

Definition at line 20 of file tuklib_exit.h.

Function Documentation

tuklib_exit()

void tuklib_exit	(	int	status,
		int	err_status,
		int	show_error
	)

Definition at line 25 of file tuklib_exit.c.

{
    if (status != err_status) {
        // Close stdout. If something goes wrong,
        // print an error message to stderr.
        const int ferror_err = ferror(stdout);
        const int fclose_err = fclose(stdout);
        if (ferror_err || fclose_err) {
            status = err_status;
 
            // If it was fclose() that failed, we have the reason
            // in errno. If only ferror() indicated an error,
            // we have no idea what the reason was.
            if (show_error)
                fprintf(stderr, "%s: %s: %s\n", progname,
                        _("Writing to standard "
                            "output failed"),
                        fclose_err ? strerror(errno)
                            : _("Unknown error"));
        }
    }
 
    if (status != err_status) {
        // Close stderr. If something goes wrong, there's
        // nothing where we could print an error message.
        // Just set the exit status.
        const int ferror_err = ferror(stderr);
        const int fclose_err = fclose(stderr);
        if (fclose_err || ferror_err)
            status = err_status;
    }
 
    exit(status);
}

References _, test-lz4-list::exit, progname, and status.