122 lines
3.7 KiB
C
122 lines
3.7 KiB
C
/* $NetBSD: supcname.c,v 1.7 2009/10/17 20:46:03 christos Exp $ */
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/*
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* Copyright (c) 1992 Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie Mellon
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* the rights to redistribute these changes.
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*/
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/*
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* sup client name server interface
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**********************************************************************
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* HISTORY
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* Revision 1.4 92/08/11 12:07:32 mrt
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* Added copyright.
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* [92/08/10 mrt]
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*
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* 21-Dec-87 Glenn Marcy (gm0w) at Carnegie-Mellon University
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* Changed to no longer use a name server.
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*
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* 26-May-87 Doug Philips (dwp) at Carnegie-Mellon University
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* Changed getnams and added several new routines to change the
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* way that sup finds nameservers. It now builds a tree of
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* servers to check. It walks over the tree. At each node, it
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* tries to contact the name server and get as many names
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* resolved as it can. It stops after either all collections
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* have host names, or if some collections don't have host names
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* but either everyone doesn't know what they are, or after too
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* many tries, none could be reached.
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*
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* 25-May-87 Doug Philips (dwp) at Carnegie-Mellon University
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* Split off from sup.c
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*
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**********************************************************************
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*/
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#include "supcdefs.h"
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#include "supextern.h"
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extern COLLECTION *firstC; /* collection list pointer */
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/*****************************************
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*** G E T H O S T N A M E S ***
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*****************************************/
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/*
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* For each collection that doesn't have a host name specified, read
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* the file server list for the name of the host for that collection.
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* It's a fatal error if a collection has no file server.
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*/
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void
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getnams(void)
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{
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COLLECTION *c;
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char buf[STRINGLENGTH];
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FILE *f;
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char *p, *q;
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for (c = firstC; c && c->Chtree != NULL; c = c->Cnext);
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if (c == NULL)
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return;
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(void) sprintf(buf, FILEHOSTS, DEFDIR);
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f = fopen(buf, "r");
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if (f == NULL)
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logquit(1, "Can't open %s", buf);
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while ((p = fgets(buf, STRINGLENGTH, f)) != NULL) {
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if ((q = strchr(p, '\n')) != NULL)
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*q = '\0';
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if (strchr("#;:", *p))
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continue;
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q = nxtarg(&p, "= \t");
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p = skipover(p, " \t");
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if (*p == '=')
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p++;
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p = skipover(p, " \t");
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if (*p == '\0')
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goaway("error in collection/host file");
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do {
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if (strcmp(c->Cname, q) == 0) {
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do {
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q = nxtarg(&p, ", \t");
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p = skipover(p, " \t");
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if (*p == ',')
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p++;
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p = skipover(p, " \t");
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(void) Tinsert(&c->Chtree, q, FALSE);
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} while (*p != '\0');
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}
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while ((c = c->Cnext) != NULL && c->Chtree != NULL);
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} while (c != NULL);
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for (c = firstC; c && c->Chtree != NULL; c = c->Cnext);
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if (c == NULL)
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break;
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}
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(void) fclose(f);
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if (c == NULL)
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return;
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do {
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logerr("Host for collection %s not found", c->Cname);
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while ((c = c->Cnext) != NULL && c->Chtree != NULL);
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} while (c);
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logquit(1, "Hosts not found for all collections");
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}
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