63 lines
2.1 KiB
C
63 lines
2.1 KiB
C
/* $NetBSD: suutil.c,v 1.1 2007/10/17 21:05:39 christos Exp $ */
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/*
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* Copyright (c) 1988 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: suutil.c,v 1.1 2007/10/17 21:05:39 christos Exp $");
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#include <sys/param.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include "suutil.h"
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int
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chshell(const char *sh)
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{
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const char *cp;
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setusershell();
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while ((cp = getusershell()) != NULL)
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if (strcmp(cp, sh) == 0)
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return 1;
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return 0;
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}
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char *
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ontty(void)
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{
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char *p;
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static char buf[MAXPATHLEN + 4];
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buf[0] = 0;
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if ((p = ttyname(STDERR_FILENO)) != NULL)
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(void)snprintf(buf, sizeof buf, " on %s", p);
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return buf;
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}
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