diff options
Diffstat (limited to 'deps/openssl/openssl/crypto/o_str.c')
| -rw-r--r-- | deps/openssl/openssl/crypto/o_str.c | 325 |
1 files changed, 230 insertions, 95 deletions
diff --git a/deps/openssl/openssl/crypto/o_str.c b/deps/openssl/openssl/crypto/o_str.c index 7e61cde85a..528655aa8c 100644 --- a/deps/openssl/openssl/crypto/o_str.c +++ b/deps/openssl/openssl/crypto/o_str.c @@ -1,116 +1,251 @@ -/* crypto/o_str.c */ /* - * Written by Richard Levitte (richard@levitte.org) for the OpenSSL project - * 2003. - */ -/* ==================================================================== - * Copyright (c) 2003 The OpenSSL Project. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. All advertising materials mentioning features or use of this - * software must display the following acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * openssl-core@openssl.org. - * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.openssl.org/)" - * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR - * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). + * Copyright 2003-2016 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 <ctype.h> +#include <limits.h> #include <e_os.h> -#include "o_str.h" +#include <openssl/crypto.h> +#include "internal/cryptlib.h" +#include "internal/o_str.h" -#if !defined(OPENSSL_IMPLEMENTS_strncasecmp) && \ - !defined(OPENSSL_SYSNAME_WIN32) && !defined(OPENSSL_SYSNAME_WINCE) && \ - !defined(NETWARE_CLIB) -# include <strings.h> -#endif +int OPENSSL_memcmp(const void *v1, const void *v2, size_t n) +{ + const unsigned char *c1 = v1, *c2 = v2; + int ret = 0; + + while (n && (ret = *c1 - *c2) == 0) + n--, c1++, c2++; + + return ret; +} + +char *CRYPTO_strdup(const char *str, const char* file, int line) +{ + char *ret; + size_t size; + + if (str == NULL) + return NULL; + size = strlen(str) + 1; + ret = CRYPTO_malloc(size, file, line); + if (ret != NULL) + memcpy(ret, str, size); + return ret; +} + +char *CRYPTO_strndup(const char *str, size_t s, const char* file, int line) +{ + size_t maxlen; + char *ret; + + if (str == NULL) + return NULL; + + maxlen = OPENSSL_strnlen(str, s); + + ret = CRYPTO_malloc(maxlen + 1, file, line); + if (ret) { + memcpy(ret, str, maxlen); + ret[maxlen] = '\0'; + } + return ret; +} + +void *CRYPTO_memdup(const void *data, size_t siz, const char* file, int line) +{ + void *ret; + + if (data == NULL || siz >= INT_MAX) + return NULL; + + ret = CRYPTO_malloc(siz, file, line); + if (ret == NULL) { + CRYPTOerr(CRYPTO_F_CRYPTO_MEMDUP, ERR_R_MALLOC_FAILURE); + return NULL; + } + return memcpy(ret, data, siz); +} + +size_t OPENSSL_strnlen(const char *str, size_t maxlen) +{ + const char *p; + + for (p = str; maxlen-- != 0 && *p != '\0'; ++p) ; + + return p - str; +} -int OPENSSL_strncasecmp(const char *str1, const char *str2, size_t n) +size_t OPENSSL_strlcpy(char *dst, const char *src, size_t size) { -#if defined(OPENSSL_IMPLEMENTS_strncasecmp) - while (*str1 && *str2 && n) { - int res = toupper(*str1) - toupper(*str2); - if (res) - return res < 0 ? -1 : 1; - str1++; - str2++; - n--; + size_t l = 0; + for (; size > 1 && *src; size--) { + *dst++ = *src++; + l++; } - if (n == 0) + if (size) + *dst = '\0'; + return l + strlen(src); +} + +size_t OPENSSL_strlcat(char *dst, const char *src, size_t size) +{ + size_t l = 0; + for (; size > 0 && *dst; size--, dst++) + l++; + return l + OPENSSL_strlcpy(dst, src, size); +} + +int OPENSSL_hexchar2int(unsigned char c) +{ +#ifdef CHARSET_EBCDIC + c = os_toebcdic[c]; +#endif + + switch (c) { + case '0': return 0; - if (*str1) + case '1': return 1; - if (*str2) - return -1; - return 0; -#else - /* - * Recursion hazard warning! Whenever strncasecmp is #defined as - * OPENSSL_strncasecmp, OPENSSL_IMPLEMENTS_strncasecmp must be defined as - * well. - */ - return strncasecmp(str1, str2, n); -#endif + case '2': + return 2; + case '3': + return 3; + case '4': + return 4; + case '5': + return 5; + case '6': + return 6; + case '7': + return 7; + case '8': + return 8; + case '9': + return 9; + case 'a': case 'A': + return 0x0A; + case 'b': case 'B': + return 0x0B; + case 'c': case 'C': + return 0x0C; + case 'd': case 'D': + return 0x0D; + case 'e': case 'E': + return 0x0E; + case 'f': case 'F': + return 0x0F; + } + return -1; } -int OPENSSL_strcasecmp(const char *str1, const char *str2) +/* + * Give a string of hex digits convert to a buffer + */ +unsigned char *OPENSSL_hexstr2buf(const char *str, long *len) { -#if defined(OPENSSL_IMPLEMENTS_strncasecmp) - return OPENSSL_strncasecmp(str1, str2, (size_t)-1); -#else - return strcasecmp(str1, str2); -#endif + unsigned char *hexbuf, *q; + unsigned char ch, cl; + int chi, cli; + const unsigned char *p; + size_t s; + + s = strlen(str); + if ((hexbuf = OPENSSL_malloc(s >> 1)) == NULL) { + CRYPTOerr(CRYPTO_F_OPENSSL_HEXSTR2BUF, ERR_R_MALLOC_FAILURE); + return NULL; + } + for (p = (const unsigned char *)str, q = hexbuf; *p; ) { + ch = *p++; + if (ch == ':') + continue; + cl = *p++; + if (!cl) { + CRYPTOerr(CRYPTO_F_OPENSSL_HEXSTR2BUF, + CRYPTO_R_ODD_NUMBER_OF_DIGITS); + OPENSSL_free(hexbuf); + return NULL; + } + cli = OPENSSL_hexchar2int(cl); + chi = OPENSSL_hexchar2int(ch); + if (cli < 0 || chi < 0) { + OPENSSL_free(hexbuf); + CRYPTOerr(CRYPTO_F_OPENSSL_HEXSTR2BUF, CRYPTO_R_ILLEGAL_HEX_DIGIT); + return NULL; + } + *q++ = (unsigned char)((chi << 4) | cli); + } + + if (len) + *len = q - hexbuf; + return hexbuf; } -int OPENSSL_memcmp(const void *v1, const void *v2, size_t n) +/* + * Given a buffer of length 'len' return a OPENSSL_malloc'ed string with its + * hex representation @@@ (Contents of buffer are always kept in ASCII, also + * on EBCDIC machines) + */ +char *OPENSSL_buf2hexstr(const unsigned char *buffer, long len) { - const unsigned char *c1 = v1, *c2 = v2; - int ret = 0; + static const char hexdig[] = "0123456789ABCDEF"; + char *tmp, *q; + const unsigned char *p; + int i; - while (n && (ret = *c1 - *c2) == 0) - n--, c1++, c2++; + if (len == 0) + { + return OPENSSL_zalloc(1); + } - return ret; + if ((tmp = OPENSSL_malloc(len * 3)) == NULL) { + CRYPTOerr(CRYPTO_F_OPENSSL_BUF2HEXSTR, ERR_R_MALLOC_FAILURE); + return NULL; + } + q = tmp; + for (i = 0, p = buffer; i < len; i++, p++) { + *q++ = hexdig[(*p >> 4) & 0xf]; + *q++ = hexdig[*p & 0xf]; + *q++ = ':'; + } + q[-1] = 0; +#ifdef CHARSET_EBCDIC + ebcdic2ascii(tmp, tmp, q - tmp - 1); +#endif + + return tmp; +} + +int openssl_strerror_r(int errnum, char *buf, size_t buflen) +{ +#if defined(_MSC_VER) && _MSC_VER>=1400 + return !strerror_s(buf, buflen, errnum); +#elif defined(_GNU_SOURCE) + return strerror_r(errnum, buf, buflen) != NULL; +#elif (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L) || \ + (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE >= 600) + /* + * We can use "real" strerror_r. The OpenSSL version differs in that it + * gives 1 on success and 0 on failure for consistency with other OpenSSL + * functions. Real strerror_r does it the other way around + */ + return !strerror_r(errnum, buf, buflen); +#else + char *err; + /* Fall back to non-thread safe strerror()...its all we can do */ + if (buflen < 2) + return 0; + err = strerror(errnum); + /* Can this ever happen? */ + if (err == NULL) + return 0; + strncpy(buf, err, buflen - 1); + buf[buflen - 1] = '\0'; + return 1; +#endif } |