xref: /illumos-gate/usr/src/cmd/sgs/libconv/common/segments.c (revision de777a601dfef76d8d54837de77dc672dce47498)
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 2007 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 #pragma ident	"%Z%%M%	%I%	%E% SMI"
27 
28 /*
29  * String conversion routine for segment flags.
30  */
31 #include	<string.h>
32 #include	<libld.h>
33 #include	"_conv.h"
34 #include	"segments_msg.h"
35 
36 #define	SEGSZ	CONV_EXPN_FIELD_DEF_PREFIX_SIZE + \
37 		MSG_FLG_SG_VADDR_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
38 		MSG_FLG_SG_PADDR_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
39 		MSG_FLG_SG_LENGTH_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
40 		MSG_FLG_SG_ALIGN_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
41 		MSG_FLG_SG_ROUND_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
42 		MSG_FLG_SG_FLAGS_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
43 		MSG_FLG_SG_TYPE_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
44 		MSG_FLG_SG_ORDER_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
45 		MSG_FLG_SG_NOHDR_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
46 		MSG_FLG_SG_EMPTY_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
47 		MSG_FLG_SG_KEY_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
48 		MSG_FLG_SG_DISABLED_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \
49 		MSG_FLG_SG_PHREQ_SIZE	+ CONV_EXPN_FIELD_DEF_SEP_SIZE + \
50 		CONV_INV_BUFSIZE + CONV_EXPN_FIELD_DEF_SUFFIX_SIZE
51 
52 /*
53  * Ensure that Conv_seg_flags_buf_t is large enough:
54  *
55  * SEGSZ is the real minimum size of the buffer required by conv_seg_flags().
56  * However, Conv_seg_flags_buf_t uses CONV_SEG_FLAGS_BUFSIZE to set the
57  * buffer size. We do things this way because the definition of SEGSZ uses
58  * information that is not available in the environment of other programs
59  * that include the conv.h header file.
60  */
61 #if (CONV_SEG_FLAGS_BUFSIZE < SEGSZ) && !defined(__lint)
62 #error "CONV_SEG_FLAGS_BUFSIZE is not large enough"
63 #endif
64 
65 const char *
66 conv_seg_flags(Half flags, Conv_seg_flags_buf_t *seg_flags_buf)
67 {
68 	static Val_desc vda[] = {
69 		{ FLG_SG_VADDR,		MSG_ORIG(MSG_FLG_SG_VADDR) },
70 		{ FLG_SG_PADDR,		MSG_ORIG(MSG_FLG_SG_PADDR) },
71 		{ FLG_SG_LENGTH,	MSG_ORIG(MSG_FLG_SG_LENGTH) },
72 		{ FLG_SG_ALIGN,		MSG_ORIG(MSG_FLG_SG_ALIGN) },
73 		{ FLG_SG_ROUND,		MSG_ORIG(MSG_FLG_SG_ROUND) },
74 		{ FLG_SG_FLAGS,		MSG_ORIG(MSG_FLG_SG_FLAGS) },
75 		{ FLG_SG_TYPE,		MSG_ORIG(MSG_FLG_SG_TYPE) },
76 		{ FLG_SG_ORDER,		MSG_ORIG(MSG_FLG_SG_ORDER) },
77 		{ FLG_SG_NOHDR,		MSG_ORIG(MSG_FLG_SG_NOHDR) },
78 		{ FLG_SG_EMPTY,		MSG_ORIG(MSG_FLG_SG_EMPTY) },
79 		{ FLG_SG_KEY,		MSG_ORIG(MSG_FLG_SG_KEY) },
80 		{ FLG_SG_DISABLED,	MSG_ORIG(MSG_FLG_SG_DISABLED) },
81 		{ FLG_SG_PHREQ,		MSG_ORIG(MSG_FLG_SG_PHREQ) },
82 		{ 0,			0 }
83 	};
84 	static CONV_EXPN_FIELD_ARG conv_arg = {
85 	    NULL, sizeof (seg_flags_buf->buf), vda };
86 
87 	if (flags == 0)
88 		return (MSG_ORIG(MSG_GBL_ZERO));
89 
90 	conv_arg.buf = seg_flags_buf->buf;
91 	conv_arg.oflags = conv_arg.rflags = flags;
92 	(void) conv_expn_field(&conv_arg);
93 
94 	return ((const char *)seg_flags_buf->buf);
95 }
96