76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
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/*
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* Copyright (c) 1989, 1990, 1991 by the University of Washington
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* Copyright (c) 1993 by the University of Southern California
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*
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* For copying and distribution information, please see the files
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* <uw-copyright.h> and <usc-copyr.h>
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*/
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#include <uw-copyright.h>
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#include <pfs.h>
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/*
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* vl_comp - compare the names of two virtual links
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*
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* VL_COMP compares the names of two links. It returns
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* 0 if they are equal, negative if vl1 < vl2, and positive if
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* vl1 > vl2.
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*
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* ARGS: vl1,vl2 - Virtual links to be compared
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*
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* RETURNS: 0 if equal, + is vl1 > vl2, - if vl1 < vl2
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*
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* NOTES: Order of significance is as follows. Existence,
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* name. If names do not exist, then hosttype, host,
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* native filenametype, native filename. The only time
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* the name will not exist if if the link is a union link.
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*/
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int
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vl_comp(VLINK vl1,VLINK vl2)
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{ int retval;
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if(vl1->name && !vl2->name) return(1);
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if(!vl1->name && vl2->name) return(-1);
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if(vl1->name && vl2->name && (*(vl1->name) || *(vl2->name)))
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return(strcmp(vl1->name,vl2->name));
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retval = strcmp(vl1->hosttype,vl2->hosttype);
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if(!retval) retval = strcmp(vl1->host,vl2->host);
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if(!retval) retval = strcmp(vl1->hsonametype,vl2->hsonametype);
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if(!retval) retval = strcmp(vl1->hsoname,vl2->hsoname);
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return(retval);
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}
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/*
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* vl_equal - compare the values of two virtual links
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*
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* VL_EQUAL compares the values of two links. It returns
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* 1 if all important fields are the same, and 0 otherwise.
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*
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* ARGS: vl1,vl2 - Virtual links to be compared
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*
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* RETURNS: 1 if equal, 0 if not equal
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*
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*/
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int
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vl_equal(vl1,vl2)
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VLINK vl1;
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VLINK vl2;
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{
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if(strcmp(vl1->name,vl2->name) != 0) return(0);
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if(strcmp(vl1->target,vl2->target) != 0) return(0);
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if(strcmp(vl1->hosttype,vl2->hosttype) != 0) return(0);
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if(strcmp(vl1->host,vl2->host) != 0) return(0);
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if(strcmp(vl1->hsonametype,vl2->hsonametype) != 0) return(0);
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if(strcmp(vl1->hsoname,vl2->hsoname) != 0) return(0);
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if(vl1->version != vl2->version) return(0);
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if(vl1->f_magic_no != vl2->f_magic_no) return(0);
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/* See if links types are compatible */
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if((vl1->linktype == 'I' ? 'L' : vl1->linktype) !=
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(vl2->linktype == 'I' ? 'L' : vl2->linktype)) return(0);
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return(1);
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}
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