From b13e238a195893b55e09f2c5d73c70b27a040a50 Mon Sep 17 00:00:00 2001
From: Werner Koch <wk@gnupg.org>
Date: Fri, 27 Feb 1998 17:51:28 +0000
Subject: bug fixes

---
 util/secmem.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'util/secmem.c')

diff --git a/util/secmem.c b/util/secmem.c
index bb39ade05..b1d86ebf1 100644
--- a/util/secmem.c
+++ b/util/secmem.c
@@ -219,6 +219,25 @@ secmem_malloc( size_t size )
 }
 
 
+void *
+secmem_realloc( void *p, size_t newsize )
+{
+    MEMBLOCK *mb;
+    size_t size;
+    void *a;
+
+    mb = (MEMBLOCK*)((char*)p - ((size_t) &((MEMBLOCK*)0)->u.d));
+    size = mb->size;
+    if( newsize < size )
+	return p; /* it is easier not to shrink the memory */
+    a = secmem_malloc( newsize );
+    memcpy(a, p, size);
+    memset(a+size, 0, newsize-size);
+    secmem_free(p);
+    return a;
+}
+
+
 void
 secmem_free( void *a )
 {
@@ -241,6 +260,12 @@ secmem_free( void *a )
     cur_alloced -= size;
 }
 
+int
+m_is_secure( const void *p )
+{
+    return p >= pool && p < (pool+poolsize);
+}
+
 void
 secmem_term()
 {
-- 
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