/*  (c) copyright 1988 by the Vrije Universiteit, Amsterdam, The Netherlands.  See the copyright notice in the ACK home directory, in the file "Copyright".*//*  Module:	Access to program arguments and environment  Author:	Ceriel J.H. Jacobs  Version:	$Header: /cvsup/minix/src/lib/libm2/Arguments.c,v 1.1.1.1 2005/04/21 14:56:19 beng Exp $*/extern char **argv, ***_penviron;extern int argc;unsigned int _Arguments__Argc;static char *findname(s1, s2)register char *s1, *s2;{	while (*s1 == *s2++) s1++;	if (*s1 == '\0' && *(s2-1) == '=') return s2;	return 0;}static unsigned intscopy(src, dst, max)	register char *src, *dst;	unsigned int max;{	register unsigned int i = 0;	while (*src && i <= max) {		i++;		*dst++ = *src++;	}	if (i <= max) {		*dst = '\0';		return i+1;	}	while (*src++) i++;	return i + 1;}_Arguments_(){	_Arguments__Argc = argc;}unsigned_Arguments__Argv(n, argument, l, u, s)	unsigned int u;	char *argument;{	if (n >= argc) return 0;	return scopy(argv[n], argument, u);}unsigned_Arguments__GetEnv(name, nn, nu, ns, value, l, u, s)	char *name, *value;	unsigned int nu, u;{	register char **p = *_penviron;	register char *v = 0;	while (*p && !(v = findname(name, *p++))) {		/* nothing */	}	if (!v) return 0;	return scopy(v, value, u);}