xref: /titanic_41/usr/src/cmd/sgs/libconv/common/_conv.h (revision 7c3666b49413f8605b61f47314242cbc4a9244e5)
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 
27 #ifndef	__CONV_DOT_H
28 #define	__CONV_DOT_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 /*
33  * Local include file for conversion library.
34  */
35 #include <conv.h>
36 
37 #ifdef	__cplusplus
38 extern "C" {
39 #endif
40 
41 /*
42  * Some format strings differ depending on whether they are used for 32-bit
43  * or 64-bit values.
44  */
45 #if	defined(_ELF64)
46 #define	MSG_GBL_FMT_DEC		MSG_GBL_FMT_DEC_64
47 #define	MSG_GBL_FMT_DECS	MSG_GBL_FMT_DECS_64
48 #define	MSG_GBL_FMT_HEX		MSG_GBL_FMT_HEX_64
49 #define	MSG_GBL_FMT_HEXS	MSG_GBL_FMT_HEXS_64
50 
51 #define	MSG_SYM_FMT_VAL		MSG_SYM_FMT_VAL_64
52 #else
53 #define	MSG_GBL_FMT_DEC		MSG_GBL_FMT_DEC_32
54 #define	MSG_GBL_FMT_DECS	MSG_GBL_FMT_DECS_32
55 #define	MSG_GBL_FMT_HEX		MSG_GBL_FMT_HEX_32
56 #define	MSG_GBL_FMT_HEXS	MSG_GBL_FMT_HEXS_32
57 
58 #define	MSG_SYM_FMT_VAL		MSG_SYM_FMT_VAL_32
59 #endif
60 
61 
62 
63 /*
64  * Map an integer into a descriptive string.
65  *
66  * entry:
67  *	buf - A buffer into which this routine can format
68  *		a result string, if necessary.
69  *	bufsize - sizeof(buf)
70  *	val - The value for which a string is desired.
71  *	flags - CONV_FMT_* values, used to influence formatting of
72  *		the resulting string.
73  *	num_msg - # of Msg entries in msg, msg_altdump, and msg_altfile.
74  *	msg - Array of num_msg Msg items corresponding to the possible
75  *		strings corresponding to val.
76  *	msg_altdump - NULL, or array of num_msg Msg items, to be used
77  *		instead of msg when the CONV_FMT_ALTDUMP flag is set.
78  *	msg_altfile - NULL, or array of num_msg Msg items, to be used
79  *		instead of msg when the CONV_FMT_ALTFILE flag is set.
80  *
81  * exit:
82  *	If val lies in the range [0-(num_msg-1)], then the string
83  *	corresponding to it is returned:
84  *		1) If CONV_FMT_ALTDUMP is set and msg_altdump is non-NULL,
85  *			the string comes from msg_altdump.
86  *		2) If CONV_FMT_ALTFILE is set and msg_altfile is non-NULL,
87  *			the string comes from msg_altfile.
88  *		3) If neither of the previous rules holds, the string
89  *			comes from msg.
90  *	if val is outside the range, an ASCII representation of it is
91  *	formatted into string, and that is returned.
92  *
93  * note:
94  *	Ideally, this would be a function defined in globals.c.
95  *	However, it uses the MSG_ORIG macro, which uses an array
96  *	that is local to each module. Hence, this is a static function,
97  *	defined by this macro. Once defined by a module, the routine
98  *	is called normally.
99  */
100 #define	DEFINE_conv_map2str \
101 static \
102 const char * \
103 conv_map2str(char *buf, size_t bufsize, int val, int flags, int num_msg, \
104 	const Msg *msg, const Msg *msg_altdump, const Msg *msg_altfile) \
105 { \
106 	if ((val >= 0) && (val < num_msg)) { \
107 		if ((flags & CONV_FMT_ALTDUMP) && msg_altdump) { \
108 			return (MSG_ORIG(msg_altdump[val])); \
109 		} else if ((flags & CONV_FMT_ALTFILE) && msg_altfile) { \
110 			return (MSG_ORIG(msg_altfile[val])); \
111 		} else { \
112 			return (MSG_ORIG(msg[val])); \
113 		} \
114 	} \
115 \
116 	/* If we get here, it's an unknown value */ \
117 	return (conv_invalid_val(buf, bufsize, val, flags)); \
118 }
119 
120 /* # of elements in an array */
121 #define	ARRAY_NELTS(arr) (sizeof (arr) / sizeof (*arr))
122 
123 
124 
125 #ifdef	__cplusplus
126 }
127 #endif
128 
129 #endif	/* __CONV_DOT_H */
130