path: root/bind-96-realloc.patch

Index: lib/isc/mem.c
===================================================================
RCS file: /var/snap/bind9/lib/isc/mem.c,v
retrieving revision 1.145
retrieving revision 1.145.120.4
diff -u -p -r1.145 -r1.145.120.4
--- lib/isc/mem.c	2 Apr 2008 02:37:42 -0000	1.145
+++ lib/isc/mem.c	16 Feb 2009 03:17:05 -0000	1.145.120.4
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004-2008  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2004-2009  Internet Systems Consortium, Inc. ("ISC")
  * Copyright (C) 1997-2003  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
@@ -15,7 +15,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: bind-96-realloc.patch,v 1.1 2009/03/04 09:27:48 atkac Exp $ */
+/* $Id: bind-96-realloc.patch,v 1.1 2009/03/04 09:27:48 atkac Exp $ */
 
 /*! \file */
 
@@ -52,7 +52,7 @@ LIBISC_EXTERNAL_DATA unsigned int isc_me
 
 #define DEF_MAX_SIZE		1100
 #define DEF_MEM_TARGET		4096
-#define ALIGNMENT_SIZE		8		/*%< must be a power of 2 */
+#define ALIGNMENT_SIZE		8U		/*%< must be a power of 2 */
 #define NUM_BASIC_BLOCKS	64		/*%< must be > 1 */
 #define TABLE_INCREMENT		1024
 #define DEBUGLIST_COUNT		1024
@@ -1191,7 +1191,7 @@ print_active(isc_mem_t *mctx, FILE *out)
 		const char *format;
 		isc_boolean_t found;
 
-		fprintf(out, isc_msgcat_get(isc_msgcat, ISC_MSGSET_MEM,
+		fprintf(out, "%s", isc_msgcat_get(isc_msgcat, ISC_MSGSET_MEM,
 					    ISC_MSG_DUMPALLOC,
 					    "Dump of all outstanding "
 					    "memory allocations:\n"));
@@ -1217,7 +1217,7 @@ print_active(isc_mem_t *mctx, FILE *out)
 			}
 		}
 		if (!found)
-			fprintf(out, isc_msgcat_get(isc_msgcat, ISC_MSGSET_MEM,
+			fprintf(out, "%s", isc_msgcat_get(isc_msgcat, ISC_MSGSET_MEM,
 						    ISC_MSG_NONE, "\tNone.\n"));
 	}
 }
@@ -1259,7 +1259,7 @@ isc_mem_stats(isc_mem_t *ctx, FILE *out)
 	 */
 	pool = ISC_LIST_HEAD(ctx->pools);
 	if (pool != NULL) {
-		fprintf(out, isc_msgcat_get(isc_msgcat, ISC_MSGSET_MEM,
+		fprintf(out, "%s", isc_msgcat_get(isc_msgcat, ISC_MSGSET_MEM,
 					    ISC_MSG_POOLSTATS,
 					    "[Pool statistics]\n"));
 		fprintf(out, "%15s %10s %10s %10s %10s %10s %10s %10s %1s\n",
@@ -1365,6 +1365,40 @@ isc__mem_allocate(isc_mem_t *ctx, size_t
 	return (si);
 }
 
+void *
+isc__mem_reallocate(isc_mem_t *ctx, void *ptr, size_t size FLARG) {
+	void *new_ptr = NULL;
+	size_t oldsize, copysize;
+
+	REQUIRE(VALID_CONTEXT(ctx));
+
+	/*
+	 * This function emulates the realloc(3) standard library function:
+	 * - if size > 0, allocate new memory; and if ptr is non NULL, copy
+	 *   as much of the old contents to the new buffer and free the old one.
+	 *   Note that when allocation fails the original pointer is intact;
+	 *   the caller must free it.
+	 * - if size is 0 and ptr is non NULL, simply free the given ptr.
+	 * - this function returns:
+	 *     pointer to the newly allocated memory, or
+	 *     NULL if allocation fails or doesn't happen.
+	 */
+	if (size > 0U) {
+		new_ptr = isc__mem_allocate(ctx, size FLARG_PASS);
+		if (new_ptr != NULL && ptr != NULL) {
+			oldsize = (((size_info *)ptr)[-1]).u.size;
+			INSIST(oldsize >= ALIGNMENT_SIZE);
+			oldsize -= ALIGNMENT_SIZE;
+			copysize = oldsize > size ? size : oldsize;
+			memcpy(new_ptr, ptr, copysize);
+			isc__mem_free(ctx, ptr FLARG_PASS);
+		}
+	} else if (ptr != NULL)
+		isc__mem_free(ctx, ptr FLARG_PASS);
+
+	return (new_ptr);
+}
+
 void
 isc__mem_free(isc_mem_t *ctx, void *ptr FLARG) {
 	size_info *si;
Index: lib/isc/include/isc/mem.h
===================================================================
RCS file: /var/snap/bind9/lib/isc/include/isc/mem.h,v
retrieving revision 1.78
retrieving revision 1.78.120.3
diff -u -p -r1.78 -r1.78.120.3
--- lib/isc/include/isc/mem.h	31 Mar 2008 05:00:30 -0000	1.78
+++ lib/isc/include/isc/mem.h	11 Feb 2009 03:07:01 -0000	1.78.120.3
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004-2008  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2004-2009  Internet Systems Consortium, Inc. ("ISC")
  * Copyright (C) 1997-2001  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
@@ -15,7 +15,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: bind-96-realloc.patch,v 1.1 2009/03/04 09:27:48 atkac Exp $ */
+/* $Id: bind-96-realloc.patch,v 1.1 2009/03/04 09:27:48 atkac Exp $ */
 
 #ifndef ISC_MEM_H
 #define ISC_MEM_H 1
@@ -94,7 +94,7 @@ LIBISC_EXTERNAL_DATA extern unsigned int
 /*!<
  * The variable isc_mem_debugging holds a set of flags for
  * turning certain memory debugging options on or off at
- * runtime.  Its is intialized to the value ISC_MEM_DEGBUGGING,
+ * runtime.  It is initialized to the value ISC_MEM_DEGBUGGING,
  * which is 0 by default but may be overridden at compile time.
  * The following flags can be specified:
  *
@@ -106,7 +106,7 @@ LIBISC_EXTERNAL_DATA extern unsigned int
  *	Crash if a free doesn't match an allocation.
  *
  * \li #ISC_MEM_DEBUGUSAGE
- *	If a hi_water mark is set, print the maximium inuse memory
+ *	If a hi_water mark is set, print the maximum inuse memory
  *	every time it is raised once it exceeds the hi_water mark.
  *
  * \li #ISC_MEM_DEBUGSIZE
@@ -154,11 +154,12 @@ LIBISC_EXTERNAL_DATA extern unsigned int
 
 #define isc_mem_get(c, s)	isc__mem_get((c), (s) _ISC_MEM_FILELINE)
 #define isc_mem_allocate(c, s)	isc__mem_allocate((c), (s) _ISC_MEM_FILELINE)
+#define isc_mem_reallocate(c, p, s) isc__mem_reallocate((c), (p), (s) _ISC_MEM_FILELINE)
 #define isc_mem_strdup(c, p)	isc__mem_strdup((c), (p) _ISC_MEM_FILELINE)
 #define isc_mempool_get(c)	isc__mempool_get((c) _ISC_MEM_FILELINE)
 
 /*%
- * isc_mem_putanddetach() is a convienence function for use where you
+ * isc_mem_putanddetach() is a convenience function for use where you
  * have a structure with an attached memory context.
  *
  * Given:
@@ -341,12 +342,12 @@ isc_mem_setwater(isc_mem_t *mctx, isc_me
  *
  * When the memory usage of 'mctx' exceeds 'hiwater',
  * '(water)(water_arg, #ISC_MEM_HIWATER)' will be called.  'water' needs to
- * call isc_mem_waterack() with #ISC_MEM_HIWATER to acknowlege the state
+ * call isc_mem_waterack() with #ISC_MEM_HIWATER to acknowledge the state
  * change.  'water' may be called multiple times.
  *
  * When the usage drops below 'lowater', 'water' will again be called, this
  * time with #ISC_MEM_LOWATER.  'water' need to calls isc_mem_waterack() with
- * #ISC_MEM_LOWATER to acknowlege the change.
+ * #ISC_MEM_LOWATER to acknowledge the change.
  *
  *	static void
  *	water(void *arg, int mark) {
@@ -373,7 +374,7 @@ isc_mem_setwater(isc_mem_t *mctx, isc_me
 void
 isc_mem_waterack(isc_mem_t *ctx, int mark);
 /*%<
- * Called to acknowledge changes in signalled by calls to 'water'.
+ * Called to acknowledge changes in signaled by calls to 'water'.
  */
 
 void
@@ -512,7 +513,7 @@ isc_mempool_associatelock(isc_mempool_t 
  * and it is also used to set or get internal state via the isc_mempool_get*()
  * and isc_mempool_set*() set of functions.
  *
- * Mutiple pools can each share a single lock.  For instance, if "manager"
+ * Multiple pools can each share a single lock.  For instance, if "manager"
  * type object contained pools for various sizes of events, and each of
  * these pools used a common lock.  Note that this lock must NEVER be used
  * by other than mempool routines once it is given to a pool, since that can
@@ -612,6 +613,8 @@ void
 isc__mem_put(isc_mem_t *, void *, size_t _ISC_MEM_FLARG);
 void *
 isc__mem_allocate(isc_mem_t *, size_t _ISC_MEM_FLARG);
+void *
+isc__mem_reallocate(isc_mem_t *, void *, size_t _ISC_MEM_FLARG);
 void
 isc__mem_free(isc_mem_t *, void * _ISC_MEM_FLARG);
 char *
Index: lib/dns/openssl_link.c
===================================================================
RCS file: /var/snap/bind9/lib/dns/openssl_link.c,v
retrieving revision 1.22
retrieving revision 1.22.112.3
diff -u -p -r1.22 -r1.22.112.3
--- lib/dns/openssl_link.c	5 Apr 2008 23:47:11 -0000	1.22
+++ lib/dns/openssl_link.c	11 Feb 2009 03:07:01 -0000	1.22.112.3
@@ -1,5 +1,5 @@
 /*
- * Portions Copyright (C) 2004-2008  Internet Systems Consortium, Inc. ("ISC")
+ * Portions Copyright (C) 2004-2009  Internet Systems Consortium, Inc. ("ISC")
  * Portions Copyright (C) 1999-2003  Internet Software Consortium.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
@@ -31,7 +31,7 @@
 
 /*
  * Principal Author: Brian Wellington
- * $Id: bind-96-realloc.patch,v 1.1 2009/03/04 09:27:48 atkac Exp $
+ * $Id: bind-96-realloc.patch,v 1.1 2009/03/04 09:27:48 atkac Exp $
  */
 #ifdef OPENSSL
 
@@ -148,18 +148,8 @@ mem_free(void *ptr) {
 
 static void *
 mem_realloc(void *ptr, size_t size) {
-	void *p;
-
 	INSIST(dst__memory_pool != NULL);
-	p = NULL;
-	if (size > 0U) {
-		p = mem_alloc(size);
-		if (p != NULL && ptr != NULL)
-			memcpy(p, ptr, size);
-	}
-	if (ptr != NULL)
-		mem_free(ptr);
-	return (p);
+	return (isc_mem_reallocate(dst__memory_pool, ptr, size));
 }
 
 isc_result_t
@@ -252,7 +242,7 @@ dst__openssl_init() {
 		for (e = ENGINE_get_first(); e != NULL; e = ENGINE_get_next(e)) {
 
 			/*
-			 * Something wierd here. If we call ENGINE_finish()
+			 * Something weird here. If we call ENGINE_finish()
 			 * ENGINE_get_default_RAND() will fail.
 			 */
 			if (ENGINE_init(e)) {
@@ -386,7 +376,7 @@ dst__openssl_setdefault(const char *name
  *
  * 'engine_id' is the openssl engine name.
  *
- * pre_cmds and post_cmds a sequence if command arguement pairs
+ * pre_cmds and post_cmds a sequence if command argument pairs
  * pre_num and post_num are a count of those pairs.
  *
  * "SO_PATH", PKCS11_SO_PATH ("/usr/local/lib/engines/engine_pkcs11.so")