/*
- * Copyright 2003-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2003-2017 The OpenSSL Project Authors. All Rights Reserved.
*
- * Licensed under the OpenSSL license (the "License"). You may not use
+ * 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 <ctype.h>
+#include "e_os.h"
#include <limits.h>
-#include <e_os.h>
#include <openssl/crypto.h>
#include "internal/cryptlib.h"
#include "internal/o_str.h"
-#if !defined(OPENSSL_IMPLEMENTS_strncasecmp) && \
- !defined(OPENSSL_SYS_WIN32) && !defined(OPENSSL_SYS_WINCE) && \
- !defined(NETWARE_CLIB)
-# include <strings.h>
-#endif
-
-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);
-#endif
-}
-
int OPENSSL_memcmp(const void *v1, const void *v2, size_t n)
{
const unsigned char *c1 = v1, *c2 = v2;
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);
+ ret = CRYPTO_malloc(strlen(str) + 1, file, line);
if (ret != NULL)
- memcpy(ret, str, size);
+ strcpy(ret, str);
return ret;
}
*/
char *OPENSSL_buf2hexstr(const unsigned char *buffer, long len)
{
- const static char hexdig[] = "0123456789ABCDEF";
+ static const char hexdig[] = "0123456789ABCDEF";
char *tmp, *q;
const unsigned char *p;
int i;
- if ((tmp = OPENSSL_malloc(len * 3 + 1)) == NULL) {
+ if (len == 0)
+ {
+ return OPENSSL_zalloc(1);
+ }
+
+ if ((tmp = OPENSSL_malloc(len * 3)) == NULL) {
CRYPTOerr(CRYPTO_F_OPENSSL_BUF2HEXSTR, ERR_R_MALLOC_FAILURE);
return NULL;
}
#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 (_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600)
+ char *err;
+
+ /*
+ * GNU strerror_r may not actually set buf.
+ * It can return a pointer to some (immutable) static string in which case
+ * buf is left unused.
+ */
+ err = strerror_r(errnum, buf, buflen);
+ if (err == NULL)
+ return 0;
+ /*
+ * If err is statically allocated, err != buf and we need to copy the data.
+ * If err points somewhere inside buf, OPENSSL_strlcpy can handle this,
+ * since src and dest are not annotated with __restrict and the function
+ * reads src byte for byte and writes to dest.
+ * If err == buf we do not have to copy anything.
+ */
+ if (err != buf)
+ OPENSSL_strlcpy(buf, err, buflen);
+ return 1;
+#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
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;
/* Can this ever happen? */
if (err == NULL)
return 0;
- strncpy(buf, err, buflen - 1);
- buf[buflen - 1] = '\0';
+ OPENSSL_strlcpy(buf, err, buflen);
return 1;
#endif
}