usr/src/lib/libpkg/common/ckvolseq.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  28 /* All Rights Reserved */
  29
  30
  31
  32 #include <stdio.h>
  33 #include <limits.h>
  34 #include <stdlib.h>
  35 #include <unistd.h>
  36 #include <sys/types.h>
  37 #include "pkgstrct.h"
  38 #include "pkglib.h"
  39 #include "pkglibmsgs.h"
  40 #include "pkglocale.h"
  41
  42 #define PKGMAP  "pkgmap"
  43 #define PKGINFO "pkginfo"
  44
  45 int
  46 ckvolseq(char *dir, int part, int nparts)
  47 {
  48         static struct cinfo cinfo;
  49         char    ftype, path[PATH_MAX];
  50
  51         if (part > 0) {
  52                 ftype = 'f';
  53                 if (part == 1) {
  54                         /*
  55                          * save stats about content information of pkginfo
  56                          * file in order to verify multi-volume packages
  57                          */
  58                         cinfo.cksum = cinfo.size = cinfo.modtime = (-1L);
  59                         (void) snprintf(path, sizeof (path), "%s/pkginfo", dir);
  60                         if (cverify(0, &ftype, path, &cinfo, 1)) {
  61                                 logerr(pkg_gt(ERR_BADPKGINFO), path);
  62                                 logerr(getErrbufAddr());
  63                                 return (1);
  64                         }
  65                         (void) snprintf(path, sizeof (path), "%s/pkgmap", dir);
  66                         if (access(path, 0)) {
  67                                 logerr(pkg_gt(ERR_NOPKGMAP), path);
  68                                 return (2);
  69                         }
  70                 } else {
  71                         /* temp fix due to summit problem */
  72                         cinfo.modtime = (-1);
  73
  74                         /* pkginfo file doesn't match first floppy */
  75                         (void) snprintf(path, sizeof (path), "%s/pkginfo", dir);
  76                         if (cverify(0, &ftype, path, &cinfo, 1)) {
  77                                 logerr(pkg_gt(MSG_CORRUPT));
  78                                 logerr(getErrbufAddr());
  79                                 return (1);
  80                         }
  81                 }
  82         } else
  83                 part = (-part);
  84
  85         /*
  86          * each volume in a multi-volume package must
  87          * contain either the root.n or reloc.n directories
  88          */
  89         if (nparts != 1) {
  90                 /* look for multi-volume specification */
  91                 (void) snprintf(path, sizeof (path), "%s/root.%d", dir, part);
  92                 if (access(path, 0) == 0)
  93                         return (0);
  94                 (void) snprintf(path, sizeof (path), "%s/reloc.%d", dir, part);
  95                 if (access(path, 0) == 0)
  96                         return (0);
  97                 if (part == 1) {
  98                         (void) snprintf(path, sizeof (path), "%s/install",
  99                                                                 dir, part);
 100                         if (access(path, 0) == 0)
 101                                 return (0);
 102                 }
 103                 if (nparts) {
 104                         logerr(pkg_gt(MSG_SEQ));
 105                         return (2);
 106                 }
 107         }
 108         return (0);
 109 }