131 lines
4.0 KiB
C
131 lines
4.0 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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#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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#include <pparse.h>
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extern int pfs_debug;
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/* Obtain object attributes from a remote host.. */
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/* Use pget_linkat() to obtain link attributes. */
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PATTRIB pget_at(vl,atname)
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VLINK vl;
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const char *atname;
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{
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RREQ req; /* Text of request to dir server */
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PATTRIB retval = NULL; /* Start of list of attributes */
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INPUT_ST in_st;
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INPUT in = &in_st;
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int tmp; /* return value from subfunctions. Value is
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only used for a couple of lines after it's
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set each time. */
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int fwdcnt = MAX_FWD_DEPTH;
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perrno = PSUCCESS; /* must set perrno, since that's how we report
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success or failure. */
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/* It's not an error to ask; However, we already know that there won't be
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any object attributes, so we just report that fact and don't waste the
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time for the request to time out. */
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if (vl->target && !strequal(vl->target, "OBJECT")
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&& !strequal(vl->target, "FILE")
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&& !strequal(vl->target, "DIRECTORY")
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&& !strequal(vl->target, "DIRECTORY+FILE"))
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return NULL;
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startover:
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CHECK_MEM();
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req = p__start_req(vl->host);
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p__add_req(req, "GET-OBJECT-INFO %'s ASCII %'s 0\n",
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atname, vl->hsoname);
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if (vl->f_magic_no)
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p__add_req(req, "SELECT OBJECT FIELD ID REMOTE %ld\n",
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vl->f_magic_no);
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tmp = ardp_send(req,vl->host,0,ARDP_WAIT_TILL_TO);
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/* If the request fails or if we don't get a response, then return error */
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if(tmp || req->rcvd == NULL) return(NULL);
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rreqtoin(req, in);
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while (!in_eof(in)) {
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char *line;
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char *next_word;
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if (in_line(in, &line, &next_word)) {
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ardp_rqfree(req);
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return(NULL);
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}
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switch (*line) {
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case 'A': /* ATTRIBUTE */
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/* If anything but ATTRIBUTE scan error */
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if(!strnequal(line,"ATTRIBUTE", 9))
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goto scanerr;
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if (in_ge1_atrs(in, line, next_word, &retval)) {
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ardp_rqfree(req);
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return NULL; /* perrno will be set. */
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}
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break;
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case 'N': /* NONE-FOUND */
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/* NONE-FOUND, we just have no attributes to insert. No error;
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just don't do anything. */
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if(strncmp(line,"NONE-FOUND",10) == 0)
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break;
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goto scanerr;
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case 'F':/* FORWARDED, FAILURE */
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if(strncmp(line,"FORWARDED",9) == 0) {
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if(fwdcnt-- <= 0) {
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ardp_rqfree(req);
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perrno = PFS_MAX_FWD_DEPTH;
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return(NULL);
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}
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/* parse and start over */
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tmp = qsscanf(line,"FORWARDED %&'s %&'s %&'s %&'s %ld %ld",
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&vl->hosttype, &vl->host, &vl->hsonametype,
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&vl->hsoname,
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&(vl->version), &(vl->f_magic_no));
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if(tmp < 2) {
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perrno = DIRSRV_BAD_FORMAT;
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break;
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}
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ardp_rqfree(req);
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goto startover;
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}
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/* If FAILURE or anything but FORWARDED, scan error */
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goto scanerr;
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scanerr:
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default:
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if(*line && (tmp = scan_error(line, req))) {
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ardp_rqfree(req);
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perrno = tmp;
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return(NULL);
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}
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break;
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} /* end of moby switch */
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} /* while in_nextline(in) */
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ardp_rqfree(req);
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return(retval);
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}
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