Ultrix-3.1/src/libU77/getarg_.c

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/**********************************************************************
 *   Copyright (c) Digital Equipment Corporation 1984, 1985, 1986.    *
 *   All Rights Reserved. 					      *
 *   Reference "/usr/src/COPYRIGHT" for applicable restrictions.      *
 **********************************************************************/

/*
 * SCCSID: @(#)getarg_.c	3.0	4/22/86
char id_getarg[] = "(2.9BSD)  getarg_.c  1.1";
 *
 * return a specified command line argument
 *
 * calling sequence:
 *	character*20 arg
 *	call getarg(k, arg)
 * where:
 *	arg will receive the kth unix command argument
*/

#include	"../libI77/fiodefs.h"

getarg_(n, s, ls)
ftnint *n;
register char *s;
ftnlen ls;
{
extern int xargc;
extern char **xargv;
register char *t;
register int i;

if(*n>=0 && *n<xargc)
	t = xargv[*n];
else
	t = "";
for(i = 0; i<ls && *t!='\0' ; ++i)
	*s++ = *t++;
for( ; i<ls ; ++i)
	*s++ = ' ';
}