src/ubik/ubikcmd.c

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  */
   9
  10 #include <afsconfig.h>
  11 #include <afs/param.h>
  12
  13 #include <roken.h>
  14
  15 #include <lock.h>
  16 #include <rx/xdr.h>
  17 #include <rx/rx.h>
  18
  19 #define UBIK_INTERNALS
  20 #include "ubik.h"
  21
  22 /*! \file
  23  * This file contain useful subroutines for parsing command line args for ubik
  24  * applications.
  25  */
  26 int
  27 ubik_ParseServerList(int argc, char **argv, afs_uint32 *ahost,
  28                      afs_uint32 *aothers)
  29 {
  30     afs_int32 i;
  31     char *tp;
  32     struct hostent *th;
  33     char hostname[64];
  34     afs_uint32 myHost, temp;
  35     afs_int32 counter;
  36     int inServer, sawServer;
  37
  38     gethostname(hostname, sizeof(hostname));
  39     th = gethostbyname(hostname);
  40     if (!th)
  41         return UBADHOST;
  42     memcpy(&myHost, th->h_addr, sizeof(afs_uint32));
  43     *ahost = myHost;
  44
  45     inServer = 0;               /* haven't seen -servers yet */
  46     sawServer = 0;
  47     counter = 0;
  48     for (i = 1; i < argc; i++) {
  49         /* look for -servers argument */
  50         tp = argv[i];
  51
  52         if (inServer) {
  53             if (*tp == '-') {
  54                 inServer = 0;
  55             } else {
  56                 /* otherwise this is a new host name */
  57                 th = gethostbyname(tp);
  58                 if (!th)
  59                     return UBADHOST;
  60                 memcpy(&temp, th->h_addr, sizeof(afs_uint32));
  61                 if (temp != myHost) {
  62                     if (counter++ >= MAXSERVERS)
  63                         return UNHOSTS;
  64                     *aothers++ = temp;
  65                 }
  66             }
  67         }
  68         /* haven't seen a -server yet */
  69         if (!strcmp(tp, "-servers")) {
  70             inServer = 1;
  71             sawServer = 1;
  72         } else if (!strcmp(tp, "-dubik")) {
  73             ubik_debugFlag = 1;
  74         }
  75     }
  76     if (!sawServer) {
  77         /* never saw a -server */
  78         return UNOENT;
  79     }
  80     if (counter < MAXSERVERS)
  81         *aothers++ = 0;         /* null terminate if there's room */
  82     return 0;
  83 }