112 lines
2.9 KiB
C
112 lines
2.9 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) 1992, 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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/* This function needs to be rewritten, but we'll wait on that until we have
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link updating fully implemented. --swa */
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#include <uw-copyright.h>
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#include <usc-copyr.h>
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#include <stdio.h>
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#include <string.h>
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#include <ardp.h>
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#include <pfs.h>
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#include <pprot.h>
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#include <perrno.h>
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extern int pfs_debug;
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/*
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*/
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int
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update_link(dirname,components)
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const char *dirname; /* Directory name */
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const char *components; /* Components to be updated */
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{
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char *dirhst; /* Host of current directory */
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char *remdir; /* Dir on remote host */
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RREQ req; /* Text of request to dir server */
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char fwdhst[MAX_DIR_LINESIZE];
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char fwdfnm[MAX_DIR_LINESIZE];
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VDIR_ST dir_st;
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VDIR dir = &dir_st;
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int tmp;
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vdir_init(dir);
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/* We must first find the directory containing the */
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/* links to be updated */
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tmp = rd_vdir(dirname,0,dir,RVD_DFILE_ONLY);
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if (tmp || (dir->links == NULL)) return(DIRSRV_NOT_DIRECTORY);
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dirhst = dir->links->host;
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remdir = dir->links->hsoname;
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startover:
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req = p__start_req(dirhst);
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p__add_req(req, "DIRECTORY ASCII %'s\nUPDATE '' COMPONENTS %s\n",
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remdir, components);
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tmp = ardp_send(req, dirhst, 0, ARDP_WAIT_TILL_TO);
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if(tmp) {
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fprintf(stderr,"Dirsend failed: %d\n",perrno);
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perrno = tmp;
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}
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if(req->rcvd == NULL) return(perrno);
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/* Here we parse the response. Right now we just check the */
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/* first packet. For this request, it should not take */
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/* any more than one. If UPDATED, then we were successful */
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/* if FAILURE, or anything else, we failed, and should */
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/* return an appropriate error */
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if(*(req->rcvd->text) != 'U') {
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if(strncmp(req->rcvd->text,"NOT-A-DIRECTORY",15) == 0) {
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ardp_rqfree(req);
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return(DIRSRV_NOT_DIRECTORY);
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}
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/* FORWARDED */
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if(strncmp(req->rcvd->text,"FORWARDED",9) == 0) {
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/* parse and start over */
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tmp = sscanf(req->rcvd->text,"FORWARDED %*s %s %*s %s %*d %*d",
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fwdhst,fwdfnm);
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dirhst = stcopy(fwdhst);
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remdir = stcopy(fwdfnm);
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ardp_rqfree(req);
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if(tmp < 2) return(DIRSRV_BAD_FORMAT);
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else goto startover;
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}
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/* We should return specific error codes. Maybe have */
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/* a routine which will parse the response and turn */
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/* it into an error code */
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if(pfs_debug)
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fprintf(stderr,"UPDATE: %s\n",req->rcvd->text);
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ardp_rqfree(req);
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RETURNPFAILURE;
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}
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ardp_rqfree(req);
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return(PSUCCESS);
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}
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