toupper_.c revision 1.18 
1/*	$NetBSD: toupper_.c,v 1.18 2025/09/15 00:11:54 riastradh Exp $	*/
2
3/*
4 * Written by J.T. Conklin <jtc@NetBSD.org>.
5 * Public domain.
6 */
7
8#include <sys/cdefs.h>
9#if defined(LIBC_RCS) && !defined(lint)
10__RCSID("$NetBSD: toupper_.c,v 1.18 2025/09/15 00:11:54 riastradh Exp $");
11#endif /* LIBC_RCS and not lint */
12
13#include <sys/ctype_bits.h>
14#include <sys/mman.h>
15
16#include <stdio.h>
17
18#include "ctype_guard.h"
19#include "ctype_local.h"
20
21#if EOF != -1
22#error "EOF != -1"
23#endif
24
25__ctype_table
26static const short _C_toupper_tab_guarded_[_C_TOUPPER_TAB_GUARD +
27    1 + _CTYPE_NUM_CHARS] = {
28	_CTYPE_GUARD_INIT(_C_TOUPPER_TAB_GUARD, EOF)
29	[_C_TOUPPER_TAB_GUARD] = EOF,
30	0x00,	0x01,	0x02,	0x03,	0x04,	0x05,	0x06,	0x07,
31	0x08,	0x09,	0x0a,	0x0b,	0x0c,	0x0d,	0x0e,	0x0f,
32	0x10,	0x11,	0x12,	0x13,	0x14,	0x15,	0x16,	0x17,
33	0x18,	0x19,	0x1a,	0x1b,	0x1c,	0x1d,	0x1e,	0x1f,
34	0x20,	0x21,	0x22,	0x23,	0x24,	0x25,	0x26,	0x27,
35	0x28,	0x29,	0x2a,	0x2b,	0x2c,	0x2d,	0x2e,	0x2f,
36	0x30,	0x31,	0x32,	0x33,	0x34,	0x35,	0x36,	0x37,
37	0x38,	0x39,	0x3a,	0x3b,	0x3c,	0x3d,	0x3e,	0x3f,
38	0x40,	0x41,	0x42,	0x43,	0x44,	0x45,	0x46,	0x47,
39	0x48,	0x49,	0x4a,	0x4b,	0x4c,	0x4d,	0x4e,	0x4f,
40	0x50,	0x51,	0x52,	0x53,	0x54,	0x55,	0x56,	0x57,
41	0x58,	0x59,	0x5a,	0x5b,	0x5c,	0x5d,	0x5e,	0x5f,
42	0x60,	'A',	'B',	'C',	'D',	'E',	'F',	'G',
43	'H',	'I',	'J',	'K',	'L',	'M',	'N',	'O',
44	'P',	'Q',	'R',	'S',	'T',	'U',	'V',	'W',
45	'X',	'Y',	'Z',	0x7b,	0x7c,	0x7d,	0x7e,	0x7f,
46	0x80,	0x81,	0x82,	0x83,	0x84,	0x85,	0x86,	0x87,
47	0x88,	0x89,	0x8a,	0x8b,	0x8c,	0x8d,	0x8e,	0x8f,
48	0x90,	0x91,	0x92,	0x93,	0x94,	0x95,	0x96,	0x97,
49	0x98,	0x99,	0x9a,	0x9b,	0x9c,	0x9d,	0x9e,	0x9f,
50	0xa0,	0xa1,	0xa2,	0xa3,	0xa4,	0xa5,	0xa6,	0xa7,
51	0xa8,	0xa9,	0xaa,	0xab,	0xac,	0xad,	0xae,	0xaf,
52	0xb0,	0xb1,	0xb2,	0xb3,	0xb4,	0xb5,	0xb6,	0xb7,
53	0xb8,	0xb9,	0xba,	0xbb,	0xbc,	0xbd,	0xbe,	0xbf,
54	0xc0,	0xc1,	0xc2,	0xc3,	0xc4,	0xc5,	0xc6,	0xc7,
55	0xc8,	0xc9,	0xca,	0xcb,	0xcc,	0xcd,	0xce,	0xcf,
56	0xd0,	0xd1,	0xd2,	0xd3,	0xd4,	0xd5,	0xd6,	0xd7,
57	0xd8,	0xd9,	0xda,	0xdb,	0xdc,	0xdd,	0xde,	0xdf,
58	0xe0,	0xe1,	0xe2,	0xe3,	0xe4,	0xe5,	0xe6,	0xe7,
59	0xe8,	0xe9,	0xea,	0xeb,	0xec,	0xed,	0xee,	0xef,
60	0xf0,	0xf1,	0xf2,	0xf3,	0xf4,	0xf5,	0xf6,	0xf7,
61	0xf8,	0xf9,	0xfa,	0xfb,	0xfc,	0xfd,	0xfe,	0xff
62};
63__ctype_table_guarded(_C_toupper_tab_, _C_toupper_tab_guarded_,
64    1 + _CTYPE_NUM_CHARS, __SIZEOF_SHORT__);
65
66#ifdef __BUILD_LEGACY
67#ifdef __weak_alias
68__weak_alias(_C_toupper_, _C_toupper_tab_)
69#endif
70#endif
71
72const short *_toupper_tab_ = &_C_toupper_tab_[0];
73
74#if _CTYPE_GUARD_PAGE
75__attribute__((constructor))
76static void
77_C_toupper_tab_guard_init(void)
78{
79
80	if (constructor_allow_ctype_abuse())
81		return;
82	(void)mprotect(__UNCONST(_C_toupper_tab_guarded_), _CTYPE_GUARD_SIZE,
83	    PROT_NONE);
84}
85#endif	/* _CTYPE_GUARD_PAGE */
86