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 <limits.h>
33 #include <string.h>
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <unistd.h>
37 #include <fcntl.h>
38 #include <libinst.h>
39
40 char *
srcpath(char * dir,char * src,int part,int nparts)41 srcpath(char *dir, char *src, int part, int nparts)
42 {
43 static char tmppath[PATH_MAX];
44 char *copy;
45 size_t copyLen;
46
47 copy = tmppath;
48
49 if (dir != NULL) {
50 size_t theLen = strlen(dir);
51
52 (void) strcpy(copy, dir);
53 copy += theLen;
54 copyLen = (sizeof (tmppath) - theLen);
55 } else {
56 copy[0] = '\0';
57 copyLen = sizeof (tmppath);
58 }
59
60 if (nparts > 1) {
61 (void) snprintf(copy, copyLen,
62 ((src[0] == '/') ? "/root.%d%s" : "/reloc.%d/%s"),
63 part, src);
64 } else {
65 (void) snprintf(copy, copyLen,
66 ((src[0] == '/') ? "/root%s" : "/reloc/%s"), src);
67 }
68
69 return (tmppath);
70 }
71
72 /*
73 * During a partial install(Ex. Migration of a zone), if the'contchg' field of
74 * mstat structure is set i.e. there is a mismatch between the entry in pkgmap
75 * and package database and the file is of type 'f', the source path on the
76 * Global zone is to be generated(mostly for being copied again to the NGZ).
77 * Given the local source path(relocatable), this function builds the absolute
78 * source path.
79 *
80 * NOTE: This function is a private interface. Should only be called during a
81 * a partial install and for files of type 'f'.
82 * Source translation is done differently from 'e' and 'v' types.
83 */
84 char *
trans_srcp_pi(char * local_path)85 trans_srcp_pi(char *local_path)
86 {
87 static char pi_srcPath[PATH_MAX];
88 char *tmp_basedir, *tmp_inst_root;
89 int inst_root_len, basedir_len;
90
91 /* Get the basedir and it's length */
92 tmp_basedir = get_basedir();
93 basedir_len = strlen(tmp_basedir);
94
95 /* Get the install root and it's length */
96 tmp_inst_root = get_inst_root();
97 inst_root_len = strlen(tmp_inst_root);
98
99 /*
100 * Get past install root if something exists
101 * Example:
102 * INSTROOT = /a (on scratch zone)
103 * BASEDIR = /a/usr (on scratch zone)
104 * local_path = "~bin/ls"
105 *
106 * Absolute path for source on GZ:
107 * a) If BASEDIR == INSTROOT
108 * /<local_path string starting from index 1>
109 * In the above example, absolute path is
110 * /bin/ls
111 *
112 * b) If BASEDIR > INSTROOT
113 * /usr/<local_path string starting from index 1>
114 * In the above example, absolute path is
115 * /usr/bin/ls
116 */
117 if ((strncmp(tmp_inst_root, tmp_basedir, inst_root_len) == 0) &&
118 (inst_root_len == basedir_len)) {
119 /*
120 * Prefix root to the local path. NOTE that local_path[0]
121 * has a '~' character. Move past it.
122 *
123 * NOTE: local_path array size is expected to be >= 2.
124 */
125 (void) snprintf(pi_srcPath, PATH_MAX, "/%s",
126 &(local_path[1]));
127 } else {
128 /*
129 * NOTE: local_path array size is expected to be >= 2.
130 */
131 (void) snprintf(pi_srcPath, PATH_MAX, "%s/%s",
132 &(tmp_basedir[inst_root_len]), &(local_path[1]));
133 }
134
135 return (pi_srcPath);
136 }
137