www.pudn.com > socks5.zip > vl_comp.c

/*                                                                           */ 
/*  * Copyright (c) 1989, 1990, 1991 by the University of Washington         */ 
/*  *                                                                        */ 
/*  * For copying and distribution information, please see the file          */ 
/*  * .                                                         */ 
 
#include  
 
/*                                                                           */ 
/*  * vl_comp - compare the names of two virtual links                       */ 
/*  *                                                                        */ 
/*  * VL_COMP compares the names of two links.  It returns                   */ 
/*  * 0 if they are equal, negative if vl1 < vl2, and positive if            */ 
/*  * vl1 > vl2.                                                             */ 
/*  *                                                                        */ 
/*  * ARGS: vl1,vl2 - Virtual links to be compared                           */ 
/*  *                                                                        */ 
/*  * RETURNS: 0 if equal, + is vl1 > vl2, - if vl1 < vl2                    */ 
/*  *                                                                        */ 
/*  * NOTES: Order of significance is as follows.  Existence,                */ 
/*  * name.  If names do not exist, then hosttype, host,                     */ 
/*  * native filenametype, native filename.  The only time                   */ 
/*  * the name will not exist if if the link is a union link.                */ 
int 
vl_comp(vl1,vl2) 
    VLINK	vl1; 
    VLINK	vl2; 
    { 
	int	retval; 
 
	if(vl1->name && !vl2->name) return(1); 
	if(!vl1->name && vl2->name) return(-1); 
	if(vl1->name && vl2->name && (*(vl1->name) || *(vl2->name))) 
	    return(strcmp(vl1->name,vl2->name)); 
 
	retval = strcmp(vl1->hosttype,vl2->hosttype); 
	if(!retval) retval = strcmp(vl1->host,vl2->host); 
	if(!retval) retval = strcmp(vl1->nametype,vl2->nametype); 
	if(!retval) retval = strcmp(vl1->filename,vl2->filename); 
	return(retval); 
    } 
 
/*                                                                           */ 
/*  * vl_equal - compare the values of two virtual links                     */ 
/*  *                                                                        */ 
/*  * VL_EQUAL compares the values of two links.  It returns                 */ 
/*  * 1 if all important fields are the same, and 0 otherwise.               */ 
/*  *                                                                        */ 
/*  * ARGS: vl1,vl2 - Virtual links to be compared                           */ 
/*  *                                                                        */ 
/*  * RETURNS: 1 if equal, 0 if not equal                                    */ 
/*  *                                                                        */ 
int 
vl_equal(vl1,vl2) 
    VLINK	vl1; 
    VLINK	vl2; 
    { 
      return strcmp(vl1->name, vl2->name) == 0         && 
	     vl1->linktype == vl2->linktype            && 
	     strcmp(vl1->type, vl2->type) == 0         && 
	     strcmp(vl1->hosttype, vl2->hosttype) == 0 && 
	     strcmp(vl1->host, vl2->host) == 0         && 
	     strcmp(vl1->nametype, vl2->nametype) == 0 && 
	     strcmp(vl1->filename, vl2->filename) == 0 && 
	     vl1->version == vl2->version              && 
	     vl1->f_magic_no == vl2->f_magic_no        ; 
 
    }