sudo/compat/getprogname.c

/*
 * Copyright (c) 2010, 2013 Todd C. Miller <Todd.Miller@courtesan.com>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <config.h>

#if !defined(HAVE_GETPROGNAME) && !defined(HAVE___PROGNAME)

#include <sys/types.h>

#include <stdio.h>
#include <string.h>

#include "missing.h"

static const char *progname = "sudo";

void
setprogname(const char *name)
{
    const char *base;

    if ((base = strrchr(name, '/')) != NULL) {
	base++;
    } else {
	base = name;
    }
    if (strcmp(progname, base) != 0)
	progname = base;
}

const char *
getprogname(void)
{
    return progname;
}
#endif /* !HAVE_GETPROGNAME !HAVE___PROGNAME */