external/bsd/am-utils/dist/conf/mtab/mtab_osf.c

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (c) 1997-2009 Erez Zadok
   5  * Copyright (c) 1990 Jan-Simon Pendry
   6  * Copyright (c) 1990 Imperial College of Science, Technology & Medicine
   7  * Copyright (c) 1990 The Regents of the University of California.
   8  * All rights reserved.
   9  *
  10  * This code is derived from software contributed to Berkeley by
  11  * Jan-Simon Pendry at Imperial College, London.
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions
  15  * are met:
  16  * 1. Redistributions of source code must retain the above copyright
  17  *    notice, this list of conditions and the following disclaimer.
  18  * 2. Redistributions in binary form must reproduce the above copyright
  19  *    notice, this list of conditions and the following disclaimer in the
  20  *    documentation and/or other materials provided with the distribution.
  21  * 3. All advertising materials mentioning features or use of this software
  22  *    must display the following acknowledgment:
  23  *      This product includes software developed by the University of
  24  *      California, Berkeley and its contributors.
  25  * 4. Neither the name of the University nor the names of its contributors
  26  *    may be used to endorse or promote products derived from this software
  27  *    without specific prior written permission.
  28  *
  29  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  30  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  31  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  32  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  33  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  34  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  35  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  36  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  37  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  38  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  39  * SUCH DAMAGE.
  40  *
  41  *
  42  * File: am-utils/conf/mtab/mtab_osf.c
  43  *
  44  */
  45
  46 #ifdef HAVE_CONFIG_H
  47 # include <config.h>
  48 #endif /* HAVE_CONFIG_H */
  49 #include <am_defs.h>
  50 #include <amu.h>
  51
  52
  53 static mntent_t *
  54 mnt_dup(struct statfs *mp)
  55 {
  56   mntent_t *new_mp = ALLOC(mntent_t);
  57   char *ty;
  58   char *at;
  59   char mntfrombuf[MNAMELEN];
  60   char *mntfromptr;
  61
  62   /*
  63    * Under DEC OSF/1 T1.2-2 the f_mntfromname fields of
  64    * the statfs structure can be in the format <fs>@<host>
  65    * instead of <host>:<fs>.  Here we check for this and
  66    * reformat it if necessary.
  67    */
  68   mntfromptr = mp->f_mntfromname;
  69
  70   switch (mp->f_type) {
  71   case MOUNT_TYPE_NFS:
  72 #ifdef HAVE_FS_NFS3
  73   case MOUNT_TYPE_NFS3:
  74 #endif /* HAVE_FS_NFS3 */
  75     at = strchr(mp->f_mntfromname, '@');
  76     if (at != '\0') {
  77       xstrlcpy(mntfrombuf, (at + 1), sizeof(mntfrombuf));
  78       xstrlcat(mntfrombuf, ":", sizeof(mntfrombuf));
  79       strncat(mntfrombuf, mp->f_mntfromname, (at - mp->f_mntfromname));
  80       mntfromptr = mntfrombuf;
  81     }
  82   }
  83   new_mp->mnt_fsname = strdup(mntfromptr);
  84
  85   new_mp->mnt_dir = strdup(mp->f_mntonname);
  86   switch (mp->f_type) {
  87   case MOUNT_TYPE_UFS:
  88     ty = MNTTAB_TYPE_UFS;
  89     break;
  90 #ifdef HAVE_FS_NFS3
  91   case MOUNT_TYPE_NFS3:
  92     ty = MNTTAB_TYPE_NFS3;
  93     break;
  94 #endif /* HAVE_FS_NFS3 */
  95   case MOUNT_TYPE_NFS:
  96     ty = MNTTAB_TYPE_NFS;
  97     break;
  98   case MOUNT_TYPE_MFS:
  99     ty = MNTTAB_TYPE_MFS;
 100     break;
 101   default:
 102     ty = "unknown";
 103     break;
 104   }
 105
 106   new_mp->mnt_type = strdup(ty);
 107   new_mp->mnt_opts = strdup("unset");
 108   new_mp->mnt_freq = 0;
 109   new_mp->mnt_passno = 0;
 110
 111   return new_mp;
 112 }
 113
 114
 115 /*
 116  * Read a mount table into memory
 117  */
 118 mntlist *
 119 read_mtab(char *fs, const char *mnttabname)
 120 {
 121   mntlist **mpp, *mhp;
 122   struct statfs *mntbufp, *mntp;
 123
 124   int nloc = getmntinfo(&mntbufp, MNT_NOWAIT);
 125
 126   if (nloc == 0) {
 127     plog(XLOG_ERROR, "Can't read mount table");
 128     return 0;
 129   }
 130   mpp = &mhp;
 131   for (mntp = mntbufp; mntp < mntbufp + nloc; mntp++) {
 132     /*
 133      * Allocate a new slot
 134      */
 135     *mpp = ALLOC(struct mntlist);
 136
 137     /*
 138      * Copy the data returned by getmntent
 139      */
 140     (*mpp)->mnt = mnt_dup(mntp);
 141
 142     /*
 143      * Move to next pointer
 144      */
 145     mpp = &(*mpp)->mnext;
 146   }
 147
 148   /* terminate the linked list */
 149   *mpp = NULL;
 150
 151   return mhp;
 152 }