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/*
* cook - file construction tool
* Copyright (C) 1997, 1999, 2006, 2007 Peter Miller;
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
*
* MANIFEST: functions to manipulate the program name
*/
#include <common/ac/string.h>
#include <common/exeext.h>
#include <common/progname.h>
static char *progname;
void
progname_set(char *s)
{
/*
* do NOT put tracing in this function
* do NOT put asserts in this function
* they both depend on progname, which is not yet set
*/
for (;;)
{
progname = strrchr(s, '/');
/*
* we were invoked as
* progname -args
*/
if (!progname)
{
int n;
/*
* Nuke any ugly progname suffix
* if it has one.
*/
n = exeext(s);
if (n > 0)
s[n] = 0;
progname = s;
break;
}
/*
* we were invoked as
* /usr/local/progname -args
*/
if (progname[1])
{
++progname;
break;
}
/*
* this is real nasty:
* it is possible to invoke us as
* /usr//local///bin////progname///// -args
* and it is legal!!
*/
*progname = 0;
}
}
char *
progname_get(void)
{
/* do NOT put tracing in this function */
return (progname ? progname : "");
}
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