xref: /titanic_41/usr/src/cmd/sgs/libconv/common/dl.c (revision 0eb822a1c0c2bea495647510b75f77f0e57633eb)
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 #pragma ident	"%Z%%M%	%I%	%E% SMI"
27 
28 #include	<string.h>
29 #include	"_conv.h"
30 #include	"dl_msg.h"
31 
32 #define	MODESZ	CONV_EXPN_FIELD_DEF_PREFIX_SIZE + \
33 		MSG_RTLD_LAZY_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
34 		MSG_RTLD_GLOBAL_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
35 		MSG_RTLD_NOLOAD_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
36 		MSG_RTLD_PARENT_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
37 		MSG_RTLD_GROUP_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
38 		MSG_RTLD_WORLD_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
39 		MSG_RTLD_NODELETE_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
40 		MSG_RTLD_FIRST_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
41 		MSG_RTLD_CONFGEN_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
42 		CONV_INV_STRSIZE + CONV_EXPN_FIELD_DEF_SUFFIX_SIZE
43 
44 
45 /*
46  * String conversion routine for dlopen() attributes.
47  */
48 const char *
49 conv_dl_mode(int mode, int fabricate)
50 {
51 	static	char	string[MODESZ];
52 	static Val_desc vda[] = {
53 		{ RTLD_NOLOAD,		MSG_ORIG(MSG_RTLD_NOLOAD) },
54 		{ RTLD_PARENT,		MSG_ORIG(MSG_RTLD_PARENT) },
55 		{ RTLD_GROUP,		MSG_ORIG(MSG_RTLD_GROUP) },
56 		{ RTLD_WORLD,		MSG_ORIG(MSG_RTLD_WORLD) },
57 		{ RTLD_NODELETE,	MSG_ORIG(MSG_RTLD_NODELETE) },
58 		{ RTLD_FIRST,		MSG_ORIG(MSG_RTLD_FIRST) },
59 		{ RTLD_CONFGEN,		MSG_ORIG(MSG_RTLD_CONFGEN) },
60 		{ 0,			0 }
61 	};
62 	static const char *leading_str_arr[3];
63 	static CONV_EXPN_FIELD_ARG conv_arg = { string, sizeof (string), vda,
64 		leading_str_arr };
65 
66 	const char **lstr = leading_str_arr;
67 
68 	conv_arg.oflags = conv_arg.rflags = mode;
69 
70 
71 	if (mode & RTLD_NOW) {
72 		*lstr++ = MSG_ORIG(MSG_RTLD_NOW);
73 	} else if (fabricate) {
74 		*lstr++ = MSG_ORIG(MSG_RTLD_LAZY);
75 	}
76 	if (mode & RTLD_GLOBAL) {
77 		*lstr++ = MSG_ORIG(MSG_RTLD_GLOBAL);
78 	} else if (fabricate) {
79 		*lstr++ = MSG_ORIG(MSG_RTLD_LOCAL);
80 	}
81 	*lstr = NULL;
82 	conv_arg.oflags = mode;
83 	conv_arg.rflags = mode & ~(RTLD_LAZY | RTLD_NOW | RTLD_GLOBAL);
84 
85 	(void) conv_expn_field(&conv_arg);
86 
87 	return ((const char *)string);
88 }
89 
90 /*
91  * Note: We can use two different sets of prefix/separator/suffix
92  * strings in conv_dl_flag(), depending on the value of the separator
93  * argument. To size the buffer, I use the default prefix and suffix
94  * sizes, and the alternate separator size, because they are larger.
95  */
96 
97 #define	FLAGSZ	CONV_EXPN_FIELD_DEF_PREFIX_SIZE + \
98 		MSG_RTLD_REL_RELATIVE_SIZE +	MSG_GBL_SEP_SIZE + \
99 		MSG_RTLD_REL_EXEC_SIZE +	MSG_GBL_SEP_SIZE + \
100 		MSG_RTLD_REL_DEPENDS_SIZE +	MSG_GBL_SEP_SIZE + \
101 		MSG_RTLD_REL_PRELOAD_SIZE +	MSG_GBL_SEP_SIZE + \
102 		MSG_RTLD_REL_SELF_SIZE +	MSG_GBL_SEP_SIZE + \
103 		MSG_RTLD_REL_WEAK_SIZE +	MSG_GBL_SEP_SIZE + \
104 		MSG_RTLD_MEMORY_SIZE +		MSG_GBL_SEP_SIZE + \
105 		MSG_RTLD_STRIP_SIZE +		MSG_GBL_SEP_SIZE + \
106 		MSG_RTLD_NOHEAP_SIZE +		MSG_GBL_SEP_SIZE + \
107 		MSG_RTLD_CONFSET_SIZE + \
108 		CONV_INV_STRSIZE + CONV_EXPN_FIELD_DEF_SUFFIX_SIZE
109 
110 /*
111  * String conversion routine for dldump() flags.
112  * crle(1) uses this routine to generate update information, and in this case
113  * we build a "|" separated string.
114  */
115 const char *
116 conv_dl_flag(int flags, int fmt_flags)
117 {
118 	static	char	string[FLAGSZ];
119 	static Val_desc vda[] = {
120 		{ RTLD_REL_RELATIVE,	MSG_ORIG(MSG_RTLD_REL_RELATIVE) },
121 		{ RTLD_REL_EXEC,	MSG_ORIG(MSG_RTLD_REL_EXEC) },
122 		{ RTLD_REL_DEPENDS,	MSG_ORIG(MSG_RTLD_REL_DEPENDS) },
123 		{ RTLD_REL_PRELOAD,	MSG_ORIG(MSG_RTLD_REL_PRELOAD) },
124 		{ RTLD_REL_SELF,	MSG_ORIG(MSG_RTLD_REL_SELF) },
125 		{ RTLD_REL_WEAK,	MSG_ORIG(MSG_RTLD_REL_WEAK) },
126 		{ RTLD_MEMORY,		MSG_ORIG(MSG_RTLD_MEMORY) },
127 		{ RTLD_STRIP,		MSG_ORIG(MSG_RTLD_STRIP) },
128 		{ RTLD_NOHEAP,		MSG_ORIG(MSG_RTLD_NOHEAP) },
129 		{ RTLD_CONFSET,		MSG_ORIG(MSG_RTLD_CONFSET) },
130 		{ 0,			0 }
131 	};
132 	static const char *leading_str_arr[2];
133 	static CONV_EXPN_FIELD_ARG conv_arg = { string, sizeof (string), vda,
134 		leading_str_arr };
135 
136 	const char **lstr = leading_str_arr;
137 
138 	if (flags == 0)
139 		return (MSG_ORIG(MSG_GBL_ZERO));
140 
141 
142 	if (fmt_flags & CONV_FMT_ALTCRLE) {
143 		conv_arg.prefix = conv_arg.suffix = MSG_ORIG(MSG_GBL_QUOTE);
144 		conv_arg.sep = MSG_ORIG(MSG_GBL_SEP);
145 	} else {		/* Use default delimiters */
146 		conv_arg.prefix = conv_arg.suffix =
147 			conv_arg.sep = NULL;
148 	}
149 
150 	if ((flags & RTLD_REL_ALL) == RTLD_REL_ALL) {
151 		*lstr++ = MSG_ORIG(MSG_RTLD_REL_ALL);
152 	    flags &= ~RTLD_REL_ALL;
153 	}
154 	*lstr = NULL;
155 	conv_arg.oflags = conv_arg.rflags = flags;
156 
157 	(void) conv_expn_field(&conv_arg);
158 
159 	return ((const char *)string);
160 }
161