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    Length: 4578 (0x11e2)
    Types: TextFile
    Names: »dn.c«

└─⟦3d0c2be1b⟧ Bits:30001254 ISODE-5.0 Tape
    └─⟦eba4602b1⟧ »./isode-5.0.tar.Z« 
        └─⟦d3ac74d73⟧ 
            └─⟦this⟧ »isode-5.0/dsap/common/dn.c« 

TextFile

/* dn.c - General Directory Name routines */

#ifndef lint
static char *rcsid = "$Header: /f/osi/dsap/common/RCS/dn.c,v 6.0 89/03/18 23:27:28 mrose Rel $";
#endif

/*
 * $Header: /f/osi/dsap/common/RCS/dn.c,v 6.0 89/03/18 23:27:28 mrose Rel $
 *
 *
 * $Log:	dn.c,v $
 * Revision 6.0  89/03/18  23:27:28  mrose
 * Release 5.0
 * 
 */

/*
 *                                NOTICE
 *
 *    Acquisition, use, and distribution of this module and related
 *    materials are subject to the restrictions of a license agreement.
 *    Consult the Preface in the User's Manual for the full terms of
 *    this agreement.
 *
 */


/* LINTLIBRARY */

#include "quipu/util.h"
#include "quipu/name.h"

extern LLog * log_dsap;
static char dn_alias;

dn_comp_free (dn)
DN dn;
{
	rdn_free (dn->dn_rdn);
	free ((char *) dn);
}
dn_free (dn)
DN dn;
{
register DN eptr;
	for (eptr = dn; eptr != NULLDN; eptr = eptr->dn_parent)
		dn_comp_free (eptr);
}

DN  dn_comp_new (rdn)
RDN rdn;
{
DN ptr;
	ptr = dn_comp_alloc ();
	dn_comp_fill (ptr,rdn);
	ptr->dn_parent = NULLDN;
	return (ptr);
}

dn_decode (x)
DN x;
{
register DN eptr;
	for (eptr = x; eptr != NULLDN; eptr = eptr->dn_parent)
		rdn_decode (eptr->dn_rdn);
}

dn_append (a,b)
DN a,b;
{
register DN ptr;
register DN eptr;

	if (a == NULLDN)
		DLOG (log_dsap,LLOG_DEBUG,("appending to null dn!"));
	else {
		for (eptr = a; eptr != NULLDN; eptr = eptr->dn_parent)
			ptr = eptr;
		ptr->dn_parent = b;
	}
}

DN  dn_comp_cpy (dn)
register DN  dn;
{
register DN ptr;
	if (dn==NULLDN) {
		DLOG (log_dsap,LLOG_DEBUG,("copy of null dn"));
		return (NULLDN);
	}
	ptr = (DN) smalloc (sizeof(dncomp));
	ptr->dn_rdn    = rdn_cpy (dn->dn_rdn);
	ptr->dn_parent = NULLDN;
	return (ptr);
}

DN  dn_cpy (dn)
register DN  dn;
{
DN start;
register DN eptr,ptr,ptr2;

	if (dn == NULLDN) {
		DLOG (log_dsap,LLOG_DEBUG,("dn_cpy of null dn"));
		return (NULLDN);
	}
	start = dn_comp_cpy (dn);
	ptr2 = start;
	for (eptr = dn->dn_parent; eptr != NULLDN; eptr = eptr->dn_parent) {
		ptr = dn_comp_cpy (eptr);
		ptr2->dn_parent = ptr;
		ptr2 = ptr;
	}
	return (start);
}


dn_cmp (a,b)
register DN  a,b;
{
	for (; (a != NULLDN) && (b != NULLDN) ; a = a->dn_parent, b = b->dn_parent)
		if ( dn_comp_cmp (a,b) == NOTOK) {
			return NOTOK;
		}

	if (( a == NULLDN) && (b == NULLDN)) {
		return OK;
	} else {
		return NOTOK;
	}

}

dn_cmp_prefix (a,b)
register DN  a,b;
{
	for (; a != NULLDN && b != NULLDN ; a = a->dn_parent, b = b->dn_parent)
		if ( dn_comp_cmp (a,b) == NOTOK) {
			return NOTOK;
		}

	if ( a == NULLDN) {
		return OK;
	} else {
		return NOTOK;
	}

}

dn_print (ps,dn,format)
DN  dn;
PS   ps;
int  format;
{
register DN eptr;

	if (dn == NULLDN) {
		if (format == READOUT)
			ps_print (ps,"NULL DN");
		return ;
	}

	dn_comp_print (ps,dn,format);
	if (dn->dn_parent != NULLDN)
		for (eptr = dn->dn_parent; eptr != NULLDN; eptr = eptr->dn_parent) {
			switch (format) {
				case DIROUT:  ps_print (ps,"/"); break;
				case EDBOUT:  ps_print (ps,"@"); break;
				case READOUT: ps_print (ps," @ "); break;
			}
			dn_comp_print (ps,eptr,format);
		}
}


DN str2dn (str)
register char * str;
{
register char *ptr;
char *save,val;
char * aliasptr;
DN dn = NULLDN, newdn;
RDN rdn;
char * alias2name ();
char * SkipSpace ();

	if (str == NULLCP)
		return (NULLDN);

	while ( (ptr = index (str,'@')) != 0) {
		save = ptr++;
		save--;
		if (! isspace (*save))
			save++;
		val = *save;
		*save = 0;


		if (dn == NULLDN)
			/* try str as an alias */
			if ((aliasptr = alias2name (SkipSpace(str))) != NULLCP) {
				dn_alias = TRUE;
				if ((newdn = str2dn(aliasptr)) == NULLDN) {
					parse_error ("Invalid alias '%s'",aliasptr);
					dn_free (dn);
					return (NULLDN);
				}
				dn = newdn;
				*save = val;
				str = ptr;
				continue;	
			}

		if ((rdn = str2rdn (str)) == NULLRDN) {
			dn_free (dn);
			return (NULLDN);
		} 
		if (dn == NULLDN)
			dn = dn_comp_new (rdn);
		else
			dn_append (dn,dn_comp_new (rdn));
		*save = val;
		str = ptr;
	}


	/* try str as an alias */
	if (dn == NULLDN)
		if ((aliasptr = alias2name (SkipSpace(str))) != NULLCP) {
			dn_alias = TRUE;
			if ((newdn = str2dn(aliasptr)) == NULLDN) {
				parse_error ("Invalid alias '%s'",aliasptr);
				dn_free (dn);
				return (NULLDN);
			}
			return (newdn);
		}

	if ((rdn = str2rdn (str)) == NULLRDN) {
		dn_free (dn);
		return (NULLDN);
	}

	if (dn == NULLDN)
		dn = dn_comp_new (rdn);
	else
		dn_append (dn,dn_comp_new (rdn));

	return (dn);
}

DN str2dn_aux (str,alias)
char * str;
char *alias;
{
DN dn;
	dn_alias = FALSE;
	dn = str2dn (str);
	*alias = dn_alias;
	return (dn);
}