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Code Issues Releases Activity
1070e7dca8
freebsd/crypto/ctype.c
Enji Cooper e4520c8bd1 openssl: Vendor import of OpenSSL-3.0.8 
Summary:

Release notes can be found at
https://www.openssl.org/news/openssl-3.0-notes.html .

Obtained from:  https://www.openssl.org/source/openssl-3.0.8.tar.gz
Differential Revision:	https://reviews.freebsd.org/D38835

Test Plan:
```
$ git status
On branch vendor/openssl-3.0
nothing to commit, working tree clean
$ (cd ..; fetch http://www.openssl.org/source/openssl-${OSSLVER}.tar.gz http://www.openssl.org/source/openssl-${OSSLVER}.tar.gz.asc)
openssl-3.0.8.tar.gz                                    14 MB 4507 kBps    04s
openssl-3.0.8.tar.gz.asc                               833  B   10 MBps    00s
$ set | egrep '(XLIST|OSSLVER)='
OSSLVER=3.0.8
XLIST=FREEBSD-Xlist
$ gpg --list-keys
/home/ngie/.gnupg/pubring.kbx
-----------------------------
pub   rsa4096 2014-10-04 [SC]
      7953AC1FBC3DC8B3B292393ED5E9E43F7DF9EE8C
uid           [ unknown] Richard Levitte <richard@levitte.org>
uid           [ unknown] Richard Levitte <levitte@lp.se>
uid           [ unknown] Richard Levitte <levitte@openssl.org>
sub   rsa4096 2014-10-04 [E]

$ gpg --verify openssl-${OSSLVER}.tar.gz.asc openssl-${OSSLVER}.tar.gz
gpg: Signature made Tue Feb  7 05:43:55 2023 PST
gpg:                using RSA key 7953AC1FBC3DC8B3B292393ED5E9E43F7DF9EE8C
gpg: Good signature from "Richard Levitte <richard@levitte.org>" [unknown]
gpg:                 aka "Richard Levitte <levitte@lp.se>" [unknown]
gpg:                 aka "Richard Levitte <levitte@openssl.org>" [unknown]
gpg: WARNING: This key is not certified with a trusted signature!
gpg:          There is no indication that the signature belongs to the owner.
Primary key fingerprint: 7953 AC1F BC3D C8B3 B292  393E D5E9 E43F 7DF9 EE8C
$ (cd vendor.checkout/; git status; find . -type f -or -type l | cut -c 3- | sort > ../old)
On branch vendor/openssl-3.0
nothing to commit, working tree clean
$ tar -x -X $XLIST -f ../openssl-${OSSLVER}.tar.gz -C ..
$ rsync --exclude FREEBSD.* --delete -avzz ../openssl-${OSSLVER}/* .
$ cat .git
gitdir: /home/ngie/git/freebsd-src/.git/worktrees/vendor.checkout
$ diff -arq ../openssl-3.0.8  .
Only in .: .git
Only in .: FREEBSD-Xlist
Only in .: FREEBSD-upgrade
$ git status FREEBSD*
On branch vendor/openssl-3.0
nothing to commit, working tree clean
$
```

Reviewers: emaste, jkim

Subscribers: imp, andrew, dab

Differential Revision: https://reviews.freebsd.org/D38835
2023-03-06 12:41:29 -08:00

314 lines
15 KiB
C
Raw Blame History

/*
* Copyright 2017-2022 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <string.h>
#include <stdio.h>
#include "crypto/ctype.h"
#include <openssl/ebcdic.h>
/*
* Define the character classes for each character in the seven bit ASCII
* character set. This is independent of the host's character set, characters
* are converted to ASCII before being used as an index in to this table.
* Characters outside of the seven bit ASCII range are detected before indexing.
*/
static const unsigned short ctype_char_map[128] = {
/* 00 nul */ CTYPE_MASK_cntrl,
/* 01 soh */ CTYPE_MASK_cntrl,
/* 02 stx */ CTYPE_MASK_cntrl,
/* 03 etx */ CTYPE_MASK_cntrl,
/* 04 eot */ CTYPE_MASK_cntrl,
/* 05 enq */ CTYPE_MASK_cntrl,
/* 06 ack */ CTYPE_MASK_cntrl,
/* 07 \a */ CTYPE_MASK_cntrl,
/* 08 \b */ CTYPE_MASK_cntrl,
/* 09 \t */ CTYPE_MASK_blank | CTYPE_MASK_cntrl | CTYPE_MASK_space,
/* 0A \n */ CTYPE_MASK_cntrl | CTYPE_MASK_space,
/* 0B \v */ CTYPE_MASK_cntrl | CTYPE_MASK_space,
/* 0C \f */ CTYPE_MASK_cntrl | CTYPE_MASK_space,
/* 0D \r */ CTYPE_MASK_cntrl | CTYPE_MASK_space,
/* 0E so */ CTYPE_MASK_cntrl,
/* 0F si */ CTYPE_MASK_cntrl,
/* 10 dle */ CTYPE_MASK_cntrl,
/* 11 dc1 */ CTYPE_MASK_cntrl,
/* 12 dc2 */ CTYPE_MASK_cntrl,
/* 13 dc3 */ CTYPE_MASK_cntrl,
/* 14 dc4 */ CTYPE_MASK_cntrl,
/* 15 nak */ CTYPE_MASK_cntrl,
/* 16 syn */ CTYPE_MASK_cntrl,
/* 17 etb */ CTYPE_MASK_cntrl,
/* 18 can */ CTYPE_MASK_cntrl,
/* 19 em */ CTYPE_MASK_cntrl,
/* 1A sub */ CTYPE_MASK_cntrl,
/* 1B esc */ CTYPE_MASK_cntrl,
/* 1C fs */ CTYPE_MASK_cntrl,
/* 1D gs */ CTYPE_MASK_cntrl,
/* 1E rs */ CTYPE_MASK_cntrl,
/* 1F us */ CTYPE_MASK_cntrl,
/* 20 */ CTYPE_MASK_blank | CTYPE_MASK_print | CTYPE_MASK_space
| CTYPE_MASK_asn1print,
/* 21 ! */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct,
/* 22 " */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct,
/* 23 # */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct,
/* 24 $ */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct,
/* 25 % */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct,
/* 26 & */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct,
/* 27 ' */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct
| CTYPE_MASK_asn1print,
/* 28 ( */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct
| CTYPE_MASK_asn1print,
/* 29 ) */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct
| CTYPE_MASK_asn1print,
/* 2A * */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct,
/* 2B + */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 2C , */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct
| CTYPE_MASK_asn1print,
/* 2D - */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct
| CTYPE_MASK_asn1print,
/* 2E . */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct
| CTYPE_MASK_asn1print,
/* 2F / */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 30 0 */ CTYPE_MASK_digit | CTYPE_MASK_graph | CTYPE_MASK_print
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 31 1 */ CTYPE_MASK_digit | CTYPE_MASK_graph | CTYPE_MASK_print
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 32 2 */ CTYPE_MASK_digit | CTYPE_MASK_graph | CTYPE_MASK_print
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 33 3 */ CTYPE_MASK_digit | CTYPE_MASK_graph | CTYPE_MASK_print
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 34 4 */ CTYPE_MASK_digit | CTYPE_MASK_graph | CTYPE_MASK_print
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 35 5 */ CTYPE_MASK_digit | CTYPE_MASK_graph | CTYPE_MASK_print
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 36 6 */ CTYPE_MASK_digit | CTYPE_MASK_graph | CTYPE_MASK_print
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 37 7 */ CTYPE_MASK_digit | CTYPE_MASK_graph | CTYPE_MASK_print
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 38 8 */ CTYPE_MASK_digit | CTYPE_MASK_graph | CTYPE_MASK_print
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 39 9 */ CTYPE_MASK_digit | CTYPE_MASK_graph | CTYPE_MASK_print
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 3A : */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct
| CTYPE_MASK_asn1print,
/* 3B ; */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct,
/* 3C < */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct,
/* 3D = */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 3E > */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct,
/* 3F ? */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct
| CTYPE_MASK_asn1print,
/* 40 @ */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct,
/* 41 A */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 42 B */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 43 C */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 44 D */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 45 E */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 46 F */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 47 G */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 48 H */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 49 I */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 4A J */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 4B K */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 4C L */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 4D M */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 4E N */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 4F O */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 50 P */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 51 Q */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 52 R */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 53 S */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 54 T */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 55 U */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 56 V */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 57 W */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 58 X */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 59 Y */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 5A Z */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_upper
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 5B [ */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct,
/* 5C \ */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct,
/* 5D ] */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct,
/* 5E ^ */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct,
/* 5F _ */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct,
/* 60 ` */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct,
/* 61 a */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 62 b */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 63 c */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 64 d */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 65 e */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 66 f */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_xdigit | CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 67 g */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 68 h */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 69 i */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 6A j */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 6B k */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 6C l */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 6D m */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 6E n */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 6F o */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 70 p */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 71 q */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 72 r */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 73 s */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 74 t */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 75 u */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 76 v */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 77 w */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 78 x */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 79 y */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 7A z */ CTYPE_MASK_graph | CTYPE_MASK_lower | CTYPE_MASK_print
| CTYPE_MASK_base64 | CTYPE_MASK_asn1print,
/* 7B { */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct,
/* 7C | */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct,
/* 7D } */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct,
/* 7E ~ */ CTYPE_MASK_graph | CTYPE_MASK_print | CTYPE_MASK_punct,
/* 7F del */ CTYPE_MASK_cntrl
};
#ifdef CHARSET_EBCDIC
int ossl_toascii(int c)
{
if (c < -128 || c > 256 || c == EOF)
return c;
/*
* Adjust negatively signed characters.
* This is not required for ASCII because any character that sign extends
* is not seven bit and all of the checks are on the seven bit characters.
* I.e. any check must fail on sign extension.
*/
if (c < 0)
c += 256;
return os_toascii[c];
}
int ossl_fromascii(int c)
{
if (c < -128 || c > 256 || c == EOF)
return c;
if (c < 0)
c += 256;
return os_toebcdic[c];
}
#endif
int ossl_ctype_check(int c, unsigned int mask)
{
const int max = sizeof(ctype_char_map) / sizeof(*ctype_char_map);
const int a = ossl_toascii(c);
return a >= 0 && a < max && (ctype_char_map[a] & mask) != 0;
}
/*
* Implement some of the simplier functions directly to avoid the overhead of
* accessing memory via ctype_char_map[].
*/
#define ASCII_IS_DIGIT(c) (c >= 0x30 && c <= 0x39)
#define ASCII_IS_UPPER(c) (c >= 0x41 && c <= 0x5A)
#define ASCII_IS_LOWER(c) (c >= 0x61 && c <= 0x7A)
int ossl_isdigit(int c)
{
int a = ossl_toascii(c);
return ASCII_IS_DIGIT(a);
}
int ossl_isupper(int c)
{
int a = ossl_toascii(c);
return ASCII_IS_UPPER(a);
}
int ossl_islower(int c)
{
int a = ossl_toascii(c);
return ASCII_IS_LOWER(a);
}
#if defined(CHARSET_EBCDIC) && !defined(CHARSET_EBCDIC_TEST)
static const int case_change = 0x40;
#else
static const int case_change = 0x20;
#endif
int ossl_tolower(int c)
{
int a = ossl_toascii(c);
return ASCII_IS_UPPER(a) ? c ^ case_change : c;
}
int ossl_toupper(int c)
{
int a = ossl_toascii(c);
return ASCII_IS_LOWER(a) ? c ^ case_change : c;
}
int ossl_ascii_isdigit(int c)
{
return ASCII_IS_DIGIT(c);
}
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