-/* crypto/o_str.c -*- mode:C; c-file-style: "eay" -*- */
-/* 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 2003-2017 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 <ctype.h>
-#include <e_os.h>
-#include "o_str.h"
+#include "e_os.h"
+#include <limits.h>
+#include <openssl/crypto.h>
+#include "internal/cryptlib.h"
+#include "internal/o_str.h"
-#if !defined(OPENSSL_IMPLEMENTS_strncasecmp) && !defined(OPENSSL_SYSNAME_WIN32)
-# 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;
-int OPENSSL_strncasecmp(const char *str1, const char *str2, size_t n)
- {
-#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--;
- }
- if (n == 0)
- return 0;
- if (*str1)
- 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
- }
-int OPENSSL_strcasecmp(const char *str1, const char *str2)
- {
-#if defined(OPENSSL_IMPLEMENTS_strncasecmp)
- return OPENSSL_strncasecmp(str1, str2, (size_t)-1);
-#else
- return strcasecmp(str1, str2);
+ while (n && (ret = *c1 - *c2) == 0)
+ n--, c1++, c2++;
+
+ return ret;
+}
+
+char *CRYPTO_strdup(const char *str, const char* file, int line)
+{
+ char *ret;
+
+ if (str == NULL)
+ return NULL;
+ ret = CRYPTO_malloc(strlen(str) + 1, file, line);
+ if (ret != NULL)
+ strcpy(ret, str);
+ 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;
+}
+
+size_t OPENSSL_strlcpy(char *dst, const char *src, size_t size)
+{
+ size_t l = 0;
+ for (; size > 1 && *src; size--) {
+ *dst++ = *src++;
+ l++;
+ }
+ 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
- }
-int OPENSSL_memcmp(const void *v1,const void *v2,size_t n)
- {
- const unsigned char *c1=v1,*c2=v2;
- int ret=0;
+ switch (c) {
+ case '0':
+ return 0;
+ case '1':
+ return 1;
+ 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;
+}
+
+/*
+ * Give a string of hex digits convert to a buffer
+ */
+unsigned char *OPENSSL_hexstr2buf(const char *str, long *len)
+{
+ 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;
+}
+
+/*
+ * 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)
+{
+ 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
+}
projects / openssl.git / blobdiff