diff options
Diffstat (limited to 'crypto/ctype.c')
| -rw-r--r-- | crypto/ctype.c | 274 |
1 files changed, 274 insertions, 0 deletions
diff --git a/crypto/ctype.c b/crypto/ctype.c new file mode 100644 index 000000000000..813be25a0741 --- /dev/null +++ b/crypto/ctype.c @@ -0,0 +1,274 @@ +/* + * Copyright 2017 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (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 "internal/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; +} + +#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) +{ + return ossl_isupper(c) ? c ^ case_change : c; +} + +int ossl_toupper(int c) +{ + return ossl_islower(c) ? c ^ case_change : c; +} |