xref: /illumos-gate/usr/src/cmd/svr4pkg/pkgremove/delmap.c (revision 62224350e5355e6834f7deb9d8a7d062a50cb7c2)
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 #include <stdio.h>
32 #include <errno.h>
33 #include <string.h>
34 #include <limits.h>
35 #include <stdlib.h>
36 #include <unistd.h>
37 #include <sys/types.h>
38 #include <pkgstrct.h>
39 #include <locale.h>
40 #include <libintl.h>
41 #include <pkglib.h>
42 #include <libadm.h>
43 #include <libinst.h>
44 
45 extern int	dbchg, warnflag, otherstoo;
46 extern char	*pkginst;
47 
48 #define	EPTMALLOC	128
49 
50 #define	ERR_WRENT	"write of entry failed, errno=%d"
51 #define	ERR_MEMORY	"no memory, errno=%d"
52 #define	ERR_READ_C	"bad read of contents file"
53 #define	ERR_READ_DB	"bad read of the database"
54 
55 extern struct cfent	**eptlist;
56 extern int	eptnum;
57 
58 int
delmap(int flag,char * pkginst,PKGserver * pkgserver,VFP_T ** tmpfp)59 delmap(int flag, char *pkginst, PKGserver *pkgserver, VFP_T **tmpfp)
60 {
61 	struct cfent	*ept;
62 	struct pinfo	*pinfo;
63 	int		n;
64 	char		*unknown = "Unknown";
65 
66 
67 	if (!ocfile(pkgserver, tmpfp, 0L) ||
68 	    pkgopenfilter(*pkgserver, pkginst) != 0) {
69 		quit(99);
70 	}
71 
72 	/* re-use any memory used to store pathnames */
73 	(void) pathdup(NULL);
74 
75 	if (eptlist != NULL)
76 		free(eptlist);
77 	eptlist = (struct cfent **)calloc(EPTMALLOC,
78 					sizeof (struct cfent *));
79 	if (eptlist == NULL) {
80 		progerr(gettext(ERR_MEMORY), errno);
81 		quit(99);
82 	}
83 
84 	ept = (struct cfent *)calloc(1,
85 				(unsigned)sizeof (struct cfent));
86 	if (!ept) {
87 		progerr(gettext(ERR_MEMORY), errno);
88 		quit(99);
89 	}
90 
91 	eptnum = 0;
92 	while (n = srchcfile(ept, "*", *pkgserver)) {
93 		if (n < 0) {
94 			char	*errstr = getErrstr();
95 			progerr(gettext("bad read of contents file"));
96 			progerr(gettext("pathname=%s"),
97 				(ept->path && *ept->path) ? ept->path :
98 				unknown);
99 			progerr(gettext("problem=%s"),
100 				(errstr && *errstr) ? errstr : unknown);
101 			exit(99);
102 		}
103 		pinfo = eptstat(ept, pkginst, (flag ? '@' : '-'));
104 		if (ept->npkgs > 0) {
105 			if (putcvfpfile(ept, *tmpfp)) {
106 				progerr(gettext(ERR_WRENT), errno);
107 				quit(99);
108 			}
109 		} else if (ept->path != NULL) {
110 			(void) vfpSetModified(*tmpfp);
111 			/* add "-<path>" to the file */
112 			vfpPutc(*tmpfp, '-');
113 			vfpPuts(*tmpfp, ept->path);
114 			vfpPutc(*tmpfp, '\n');
115 		}
116 
117 		if (flag || (pinfo == NULL))
118 			continue;
119 
120 		dbchg++;
121 
122 		/*
123 		 * If (otherstoo > 0), more than one package has an
124 		 * interest in the ept entry in the database. Setting
125 		 * ept->ftype = '\0' effectively marks the file as being
126 		 * "shared", thus ensuring the ept entry will not
127 		 * subsequently be removed. Shared editable files (ftype
128 		 * 'e') are a special case: they should be passed to a
129 		 * class action script if present. Setting ept->ftype =
130 		 * '^' indicates this special case of shared editable
131 		 * file, allowing the distinction to be made later.
132 		 */
133 		if (!pinfo->editflag && otherstoo)
134 			ept->ftype = (ept->ftype == 'e') ? '^' : '\0';
135 		if (*pinfo->aclass)
136 			(void) strcpy(ept->pkg_class, pinfo->aclass);
137 		eptlist[eptnum] = ept;
138 
139 		ept->path = pathdup(ept->path);
140 		if (ept->ainfo.local != NULL)
141 			ept->ainfo.local = pathdup(ept->ainfo.local);
142 
143 		ept = (struct cfent *)calloc(1, sizeof (struct cfent));
144 		if ((++eptnum % EPTMALLOC) == 0) {
145 			eptlist = (struct cfent **)realloc(eptlist,
146 			(eptnum+EPTMALLOC)*sizeof (struct cfent *));
147 			if (eptlist == NULL) {
148 				progerr(gettext(ERR_MEMORY), errno);
149 				quit(99);
150 			}
151 		}
152 	}
153 
154 	eptlist[eptnum] = (struct cfent *)NULL;
155 
156 	n = swapcfile(*pkgserver, tmpfp, pkginst, dbchg);
157 	if (n == RESULT_WRN) {
158 		warnflag++;
159 	} else if (n == RESULT_ERR) {
160 		quit(99);
161 	}
162 
163 	return (0);
164 }
165