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 (c) 1992, 2010, Oracle and/or its affiliates. All rights reserved.
24 */
25
26#include	<string.h>
27#include	"_conv.h"
28#include	"dl_msg.h"
29
30#define	MODESZ	CONV_EXPN_FIELD_DEF_PREFIX_SIZE + \
31		MSG_RTLD_LAZY_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
32		MSG_RTLD_GLOBAL_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
33		MSG_RTLD_NOLOAD_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
34		MSG_RTLD_PARENT_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
35		MSG_RTLD_GROUP_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
36		MSG_RTLD_WORLD_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
37		MSG_RTLD_NODELETE_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
38		MSG_RTLD_FIRST_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
39		MSG_RTLD_CONFGEN_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
40		CONV_INV_BUFSIZE + CONV_EXPN_FIELD_DEF_SUFFIX_SIZE
41
42
43/*
44 * Ensure that Conv_dl_mode_buf_t is large enough:
45 *
46 * MODESZ is the real minimum size of the buffer required by conv_dl_mode().
47 * However, Conv_dl_mode_buf_t uses CONV_DL_MODE_BUFSIZE to set the
48 * buffer size. We do things this way because the definition of MODESZ uses
49 * information that is not available in the environment of other programs
50 * that include the conv.h header file.
51 */
52#if (CONV_DL_MODE_BUFSIZE != MODESZ) && !defined(__lint)
53#define	REPORT_BUFSIZE MODESZ
54#include "report_bufsize.h"
55#error "CONV_DL_MODE_BUFSIZE does not match MODESZ"
56#endif
57
58/*
59 * String conversion routine for dlopen() attributes.
60 */
61const char *
62conv_dl_mode(int mode, int fabricate, Conv_dl_mode_buf_t *dl_mode_buf)
63{
64	static const Val_desc vda[] = {
65		{ RTLD_NOLOAD,		MSG_RTLD_NOLOAD },
66		{ RTLD_PARENT,		MSG_RTLD_PARENT },
67		{ RTLD_GROUP,		MSG_RTLD_GROUP },
68		{ RTLD_WORLD,		MSG_RTLD_WORLD },
69		{ RTLD_NODELETE,	MSG_RTLD_NODELETE },
70		{ RTLD_FIRST,		MSG_RTLD_FIRST },
71		{ RTLD_CONFGEN,		MSG_RTLD_CONFGEN },
72		{ 0,			0 }
73	};
74	static const char *leading_str_arr[3];
75	static CONV_EXPN_FIELD_ARG conv_arg = {
76	    NULL, sizeof (dl_mode_buf->buf), leading_str_arr };
77
78	const char **lstr = leading_str_arr;
79
80	conv_arg.buf = dl_mode_buf->buf;
81	conv_arg.oflags = conv_arg.rflags = mode;
82
83
84	if (mode & RTLD_NOW) {
85		*lstr++ = MSG_ORIG(MSG_RTLD_NOW);
86	} else if ((mode & RTLD_LAZY) || fabricate) {
87		*lstr++ = MSG_ORIG(MSG_RTLD_LAZY);
88	}
89	if (mode & RTLD_GLOBAL) {
90		*lstr++ = MSG_ORIG(MSG_RTLD_GLOBAL);
91	} else if (fabricate) {
92		*lstr++ = MSG_ORIG(MSG_RTLD_LOCAL);
93	}
94	*lstr = NULL;
95	conv_arg.oflags = mode;
96	conv_arg.rflags = mode & ~(RTLD_LAZY | RTLD_NOW | RTLD_GLOBAL);
97
98	(void) conv_expn_field(&conv_arg, vda, 0);
99
100	return ((const char *)dl_mode_buf->buf);
101}
102
103/*
104 * Note: We can use two different sets of prefix/separator/suffix
105 * strings in conv_dl_flag(), depending on the value of the separator
106 * argument. To size the buffer, I use the default prefix and suffix
107 * sizes, and the alternate separator size, because they are larger.
108 */
109
110#define	FLAGSZ	CONV_EXPN_FIELD_DEF_PREFIX_SIZE + \
111		MSG_RTLD_REL_RELATIVE_SIZE +	MSG_GBL_SEP_SIZE + \
112		MSG_RTLD_REL_EXEC_SIZE +	MSG_GBL_SEP_SIZE + \
113		MSG_RTLD_REL_DEPENDS_SIZE +	MSG_GBL_SEP_SIZE + \
114		MSG_RTLD_REL_PRELOAD_SIZE +	MSG_GBL_SEP_SIZE + \
115		MSG_RTLD_REL_SELF_SIZE +	MSG_GBL_SEP_SIZE + \
116		MSG_RTLD_REL_WEAK_SIZE +	MSG_GBL_SEP_SIZE + \
117		MSG_RTLD_MEMORY_SIZE +		MSG_GBL_SEP_SIZE + \
118		MSG_RTLD_STRIP_SIZE +		MSG_GBL_SEP_SIZE + \
119		MSG_RTLD_NOHEAP_SIZE +		MSG_GBL_SEP_SIZE + \
120		MSG_RTLD_CONFSET_SIZE + \
121		CONV_INV_BUFSIZE + CONV_EXPN_FIELD_DEF_SUFFIX_SIZE
122
123/*
124 * Ensure that Conv_dl_flag_buf_t is large enough:
125 *
126 * FLAGSZ is the real minimum size of the buffer required by conv_dl_flag().
127 * However, Conv_dl_flag_buf_t uses CONV_DL_FLAG_BUFSIZE to set the
128 * buffer size. We do things this way because the definition of FLAGSZ uses
129 * information that is not available in the environment of other programs
130 * that include the conv.h header file.
131 */
132#if (CONV_DL_FLAG_BUFSIZE != FLAGSZ) && !defined(__lint)
133#define	REPORT_BUFSIZE FLAGSZ
134#include "report_bufsize.h"
135#error "CONV_DL_FLAG_BUFSIZE does not match FLAGSZ"
136#endif
137
138/*
139 * String conversion routine for dldump() flags.
140 * crle(1) uses this routine to generate update information, and in this case
141 * we build a "|" separated string.
142 */
143const char *
144conv_dl_flag(int flags, Conv_fmt_flags_t fmt_flags,
145    Conv_dl_flag_buf_t *dl_flag_buf)
146{
147	static const Val_desc vda[] = {
148		{ RTLD_REL_RELATIVE,	MSG_RTLD_REL_RELATIVE },
149		{ RTLD_REL_EXEC,	MSG_RTLD_REL_EXEC },
150		{ RTLD_REL_DEPENDS,	MSG_RTLD_REL_DEPENDS },
151		{ RTLD_REL_PRELOAD,	MSG_RTLD_REL_PRELOAD },
152		{ RTLD_REL_SELF,	MSG_RTLD_REL_SELF },
153		{ RTLD_REL_WEAK,	MSG_RTLD_REL_WEAK },
154		{ RTLD_MEMORY,		MSG_RTLD_MEMORY },
155		{ RTLD_STRIP,		MSG_RTLD_STRIP },
156		{ RTLD_NOHEAP,		MSG_RTLD_NOHEAP },
157		{ RTLD_CONFSET,		MSG_RTLD_CONFSET },
158		{ 0,			0 }
159	};
160	static const char *leading_str_arr[2];
161	static CONV_EXPN_FIELD_ARG conv_arg = {
162	    NULL, sizeof (dl_flag_buf->buf), leading_str_arr };
163
164	const char **lstr = leading_str_arr;
165
166	if (flags == 0)
167		return (MSG_ORIG(MSG_GBL_ZERO));
168
169	conv_arg.buf = dl_flag_buf->buf;
170	if (CONV_TYPE_FMT_ALT(fmt_flags) == CONV_FMT_ALT_CRLE) {
171		conv_arg.prefix = conv_arg.suffix = MSG_ORIG(MSG_GBL_QUOTE);
172		conv_arg.sep = MSG_ORIG(MSG_GBL_SEP);
173	} else {		/* Use default delimiters */
174		conv_arg.prefix = conv_arg.suffix = conv_arg.sep = NULL;
175	}
176
177	if ((flags & RTLD_REL_ALL) == RTLD_REL_ALL) {
178		*lstr++ = MSG_ORIG(MSG_RTLD_REL_ALL);
179		flags &= ~RTLD_REL_ALL;
180	}
181	*lstr = NULL;
182	conv_arg.oflags = conv_arg.rflags = flags;
183
184	(void) conv_expn_field(&conv_arg, vda, fmt_flags);
185
186	return ((const char *)dl_flag_buf->buf);
187}
188
189const char *
190conv_dl_info(int request)
191{
192	static const Msg	requests[RTLD_DI_MAX] = {
193		MSG_RTLD_DI_LMID,	/* MSG_ORIG(MSG_RTLD_DI_LMID) */
194		MSG_RTLD_DI_LINKMAP,	/* MSG_ORIG(MSG_RTLD_DI_LINKMAP) */
195		MSG_RTLD_DI_CONFIGADDR,	/* MSG_ORIG(MSG_RTLD_DI_CONFIGADDR) */
196		MSG_RTLD_DI_SERINFO,	/* MSG_ORIG(MSG_RTLD_DI_SERINFO) */
197		MSG_RTLD_DI_SERINFOSIZE, /* MSG_ORIG(MSG_RTLD_DI_SERINFOSIZE) */
198		MSG_RTLD_DI_ORIGIN,	/* MSG_ORIG(MSG_RTLD_DI_ORIGIN) */
199		MSG_RTLD_DI_PROFILENAME, /* MSG_ORIG(MSG_RTLD_DI_PROFILENAME) */
200		MSG_RTLD_DI_PROFILEOUT,	/* MSG_ORIG(MSG_RTLD_DI_PROFILEOUT) */
201		MSG_RTLD_DI_GETSIGNAL,	/* MSG_ORIG(MSG_RTLD_DI_GETSIGNAL) */
202		MSG_RTLD_DI_SETSIGNAL,	/* MSG_ORIG(MSG_RTLD_DI_SETSIGNAL) */
203		MSG_RTLD_DI_ARGSINFO,	/* MSG_ORIG(MSG_RTLD_DI_ARGSINFO) */
204		MSG_RTLD_DI_MMAPS,	/* MSG_ORIG(MSG_RTLD_DI_MMAPS) */
205		MSG_RTLD_DI_MMAPCNT,	/* MSG_ORIG(MSG_RTLD_DI_MMAPCNT) */
206		MSG_RTLD_DI_DEFERRED,	/* MSG_ORIG(MSG_RTLD_DI_DEFERRED) */
207		MSG_RTLD_DI_DEFERRED_SYM
208					/* MSG_ORIG(MSG_RTLD_DI_DEFERRED_SYM) */
209	};
210	static Conv_inv_buf_t	inv_buf;
211
212#if	(RTLD_DI_MAX != RTLD_DI_DEFERRED_SYM)
213#error	"RTLD_DI_MAX has grown"
214#endif
215	if (request && (request <= RTLD_DI_MAX))
216		return (MSG_ORIG(requests[request - 1]));
217
218	(void) conv_invalid_val(&inv_buf, EC_NATPTR(request), 0);
219	return (inv_buf.buf);
220}
221