X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fbuffer%2Fbuf_str.c;h=1f3e8a4e798f2c234ed519baf1de8b3c8d301607;hp=58028ebac72f4f1ecc7578896afe9079101ca603;hb=de8883e11befde31d9b6cfbbd1fc017c365e0bbf;hpb=dea4a18404d448e7bc58ae652f9f4355f1f1e404

diff --git a/crypto/buffer/buf_str.c b/crypto/buffer/buf_str.c
index 58028ebac7..1f3e8a4e79 100644
--- a/crypto/buffer/buf_str.c
+++ b/crypto/buffer/buf_str.c
@@ -5,21 +5,21 @@
  * This package is an SSL implementation written
  * by Eric Young (eay@cryptsoft.com).
  * The implementation was written so as to conform with Netscapes SSL.
- * 
+ *
  * This library is free for commercial and non-commercial use as long as
  * the following conditions are aheared to.  The following conditions
  * apply to all code found in this distribution, be it the RC4, RSA,
  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  * included with this distribution is covered by the same copyright terms
  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- * 
+ *
  * Copyright remains Eric Young's, and as such any Copyright notices in
  * the code are not to be removed.
  * If this package is used in a product, Eric Young should be given attribution
  * as the author of the parts of the library used.
  * This can be in the form of a textual message at program startup or
  * in documentation (online or textual) provided with the package.
- * 
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ -34,10 +34,10 @@
  *     Eric Young (eay@cryptsoft.com)"
  *    The word 'cryptographic' can be left out if the rouines from the library
  *    being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from 
+ * 4. If you include any Windows specific code (or a derivative thereof) from
  *    the apps directory (application code) you must include an acknowledgement:
  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -49,88 +49,89 @@
  * 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.
- * 
+ *
  * The licence and distribution terms for any publically available version or
  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  * copied and put under another distribution licence
  * [including the GNU Public Licence.]
  */
 
-#define OPENSSL_FIPSAPI
-
 #include <stdio.h>
-#include "cryptlib.h"
+#include <limits.h>
+#include "internal/cryptlib.h"
 #include <openssl/buffer.h>
 
 size_t BUF_strnlen(const char *str, size_t maxlen)
-	{
-	const char *p;
+{
+    const char *p;
 
-	for (p = str; *p != '\0' && maxlen-- != 0; ++p)
-		;
+    for (p = str; maxlen-- != 0 && *p != '\0'; ++p) ;
 
-	return p - str;
-	}
+    return p - str;
+}
 
 char *BUF_strdup(const char *str)
-	{
-	if (str == NULL) return(NULL);
-	return BUF_strndup(str, strlen(str));
-	}
+{
+    if (str == NULL)
+        return NULL;
+    return BUF_strndup(str, strlen(str));
+}
 
 char *BUF_strndup(const char *str, size_t siz)
-	{
-	char *ret;
-	size_t len;
-
-	if (str == NULL) return(NULL);
-
-	len = BUF_strnlen(str, siz);
-	if (siz > len)
-	    siz = len;
-
-	ret=OPENSSL_malloc(siz+1);
-	if (ret == NULL) 
-		{
-		BUFerr(BUF_F_BUF_STRNDUP,ERR_R_MALLOC_FAILURE);
-		return(NULL);
-		}
-	BUF_strlcpy(ret,str,siz+1);
-	return(ret);
-	}
+{
+    char *ret;
+
+    if (str == NULL)
+        return NULL;
+
+    siz = BUF_strnlen(str, siz);
+
+    if (siz >= INT_MAX)
+        return NULL;
+
+    ret = OPENSSL_malloc(siz + 1);
+    if (ret == NULL) {
+        BUFerr(BUF_F_BUF_STRNDUP, ERR_R_MALLOC_FAILURE);
+        return NULL;
+    }
+
+    memcpy(ret, str, siz);
+    ret[siz] = '\0';
+
+    return (ret);
+}
 
 void *BUF_memdup(const void *data, size_t siz)
-	{
-	void *ret;
+{
+    void *ret;
 
-	if (data == NULL) return(NULL);
+    if (data == NULL || siz >= INT_MAX)
+        return NULL;
 
-	ret=OPENSSL_malloc(siz);
-	if (ret == NULL) 
-		{
-		BUFerr(BUF_F_BUF_MEMDUP,ERR_R_MALLOC_FAILURE);
-		return(NULL);
-		}
-	return memcpy(ret, data, siz);
-	}	
+    ret = OPENSSL_malloc(siz);
+    if (ret == NULL) {
+        BUFerr(BUF_F_BUF_MEMDUP, ERR_R_MALLOC_FAILURE);
+        return NULL;
+    }
+    return memcpy(ret, data, siz);
+}
 
 size_t BUF_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 l = 0;
+    for (; size > 1 && *src; size--) {
+        *dst++ = *src++;
+        l++;
+    }
+    if (size)
+        *dst = '\0';
+    return l + strlen(src);
+}
 
 size_t BUF_strlcat(char *dst, const char *src, size_t size)
-	{
-	size_t l = 0;
-	for(; size > 0 && *dst; size--, dst++)
-		l++;
-	return l + BUF_strlcpy(dst, src, size);
-	}
+{
+    size_t l = 0;
+    for (; size > 0 && *dst; size--, dst++)
+        l++;
+    return l + BUF_strlcpy(dst, src, size);
+}