95 lines
2.9 KiB
C
95 lines
2.9 KiB
C
/* $NetBSD: getprogname.c,v 1.3 2003/07/26 19:24:42 salo Exp $ */
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/*
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* Copyright (c) 2001 Christopher G. Demetriou
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the
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* NetBSD Project. See http://www.NetBSD.org/ for
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* information about NetBSD.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: getprogname.c,v 1.3 2003/07/26 19:24:42 salo Exp $");
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#endif /* LIBC_SCCS and not lint */
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#include "namespace.h"
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#include <stdlib.h>
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#include <string.h>
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#if defined(__ELF__)
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extern const char *__progname;
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const char *
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getprogname(void)
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{
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return (__progname);
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}
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void
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setprogname(const char *progname)
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{
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const char *p;
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p = strrchr(progname, '/');
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if (p != NULL)
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__progname = p + 1;
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else
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__progname = progname;
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}
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#else
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static const char *theprogname = NULL;
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extern const char **__prognamep; /* Copy of argv[]. */
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extern int __argc; /* Copy of argc. */
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const char *
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getprogname(void)
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{
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const char *pn = NULL, *component;
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if(theprogname)
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return theprogname;
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if(__argc > 0 && __prognamep)
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pn = __prognamep[0];
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else
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return NULL;
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if((component=strrchr(pn, '/')))
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return component+1;
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return pn;
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}
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void
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setprogname(const char *newprogname)
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{
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theprogname = newprogname;
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}
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#endif
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