usr/src/cmd/svr4pkg/pkginstall/pkgenv.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 2006 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 #include <stdio.h>
  32 #include <limits.h>
  33 #include <stdlib.h>
  34 #include <unistd.h>
  35 #include <sys/types.h>
  36 #include <pkgstrct.h>
  37 #include <string.h>
  38 #include <locale.h>
  39 #include <libintl.h>
  40 #include <pkglib.h>
  41 #include "install.h"
  42 #include "libadm.h"
  43 #include "libinst.h"
  44
  45 #define ERR_PKGINFO     "unable to access pkginfo file <%s>"
  46 #define ERR_PKGMAP      "unable to access pkgmap file <%s>"
  47 #define ERR_NOPARAM     "%s parameter is not defined in <%s>"
  48 #define ERR_PKGBAD      "PKG parameter is invalid <%s>"
  49 #define ERR_PKGMTCH     "PKG parameter <%s> does not match instance <%s>"
  50
  51 char    *pkgarch;
  52 char    *pkgvers;
  53 char    *pkgabrv;
  54 char    *pkgname;
  55 char    pkgwild[PKGSIZ+1];
  56
  57 /*
  58  * This function confirms the presence of pkgmap and pkginfo and verifies
  59  * that the mandatory parameters are available in the environment.
  60  */
  61 int
  62 pkgenv(char *pkginst, char *p_pkginfo, char *p_pkgmap)
  63 {
  64         FILE    *fp;
  65         char    *value,
  66                 path[PATH_MAX],
  67                 param[MAX_PKG_PARAM_LENGTH];
  68         int     errflg;
  69
  70         errflg = 0;
  71         if (access(p_pkgmap, 0)) {
  72                 progerr(gettext(ERR_PKGMAP), p_pkgmap);
  73                 return (1);
  74         }
  75         if ((fp = fopen(p_pkginfo, "r")) == NULL) {
  76                 progerr(gettext(ERR_PKGINFO), p_pkginfo);
  77                 return (1);
  78         }
  79         param[0] = '\0';
  80         while (value = fpkgparam(fp, param)) {
  81                 if (strcmp("PATH", param))
  82                         putparam(param, value);
  83                 free(value);
  84                 param[0] = '\0';
  85         }
  86         (void) fclose(fp);
  87         /*
  88          * verify that required parameters are now present in
  89          * the environment
  90          */
  91         if ((pkgabrv = getenv("PKG")) == NULL) {
  92                 progerr(gettext(ERR_NOPARAM), "PKG", path);
  93                 errflg++;
  94         }
  95         if (pkgnmchk(pkgabrv, NULL, 0) || strchr(pkgabrv, '.')) {
  96                 progerr(gettext(ERR_PKGBAD), pkgabrv);
  97                 errflg++;
  98         }
  99         (void) snprintf(pkgwild, sizeof (pkgwild), "%s.*", pkgabrv);
 100         if ((pkgname = getenv("NAME")) == NULL) {
 101                 progerr(gettext(ERR_NOPARAM), "NAME", path);
 102                 errflg++;
 103         }
 104         if ((pkgarch = getenv("ARCH")) == NULL) {
 105                 progerr(gettext(ERR_NOPARAM), "ARCH", path);
 106                 errflg++;
 107         }
 108         if ((pkgvers = getenv("VERSION")) == NULL) {
 109                 progerr(gettext(ERR_NOPARAM), "VERSION", path);
 110                 errflg++;
 111         }
 112         if (getenv("CATEGORY") == NULL) {
 113                 progerr(gettext(ERR_NOPARAM), "CATEGORY", path);
 114                 errflg++;
 115         }
 116         /*
 117          * verify consistency between PKG parameter and pkginst that
 118          * was determined from the directory structure
 119          */
 120         (void) snprintf(param, sizeof (param), "%s.*", pkgabrv);
 121         if (pkgnmchk(pkginst, param, 0)) {
 122                 progerr(gettext(ERR_PKGMTCH), pkgabrv, pkginst);
 123                 errflg++;
 124         }
 125         return (errflg);
 126 }