1 files changed, 197 insertions, 0 deletions
diff --git a/security/nss/lib/base/libc.c b/security/nss/lib/base/libc.c
new file mode 100644
index 000000000..68ab9d920
--- /dev/null
+++ b/security/nss/lib/base/libc.c
@@ -0,0 +1,197 @@
+/* 
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is the Netscape security libraries.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1994-2000 Netscape Communications Corporation.  All
+ * Rights Reserved.
+ * 
+ * Contributor(s):
+ * 
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU General Public License Version 2 or later (the
+ * "GPL"), in which case the provisions of the GPL are applicable 
+ * instead of those above.  If you wish to allow use of your 
+ * version of this file only under the terms of the GPL and not to
+ * allow others to use your version of this file under the MPL,
+ * indicate your decision by deleting the provisions above and
+ * replace them with the notice and other provisions required by
+ * the GPL.  If you do not delete the provisions above, a recipient
+ * may use your version of this file under either the MPL or the
+ * GPL.
+ */
+
+#ifdef DEBUG
+static const char CVS_ID[] = "@(#) $RCSfile$ $Revision$ $Date$ $Name$";
+#endif /* DEBUG */
+
+/*
+ * libc.c
+ *
+ * This file contains our wrappers/reimplementations for "standard" 
+ * libc functions.  Things like "memcpy."  We add to this as we need 
+ * it.  Oh, and let's keep it in alphabetical order, should it ever 
+ * get large.  Most string/character stuff should be in utf8.c, not 
+ * here.  This file (and maybe utf8.c) should be the only ones in
+ * NSS to include files with angle brackets.
+ */
+
+#ifndef BASE_H
+#include "base.h"
+#endif /* BASE_H */
+
+#include <string.h> /* memcpy, memset */
+
+/*
+ * nsslibc_memcpy
+ * nsslibc_memset
+ * nsslibc_offsetof
+ * nsslibc_memequal
+ */
+
+/*
+ * nsslibc_memcpy
+ *
+ * Errors:
+ *  NSS_ERROR_INVALID_POINTER
+ *
+ * Return value:
+ *  NULL on error
+ *  The destination pointer on success
+ */
+
+NSS_IMPLEMENT void *
+nsslibc_memcpy
+(
+  void *dest,
+  const void *source,
+  PRUint32 n
+)
+{
+#ifdef NSSDEBUG
+  if( ((void *)NULL == dest) || ((const void *)NULL == source) ) {
+    nss_SetError(NSS_ERROR_INVALID_POINTER);
+    return (void *)NULL;
+  }
+#endif /* NSSDEBUG */
+
+  return memcpy(dest, source, (size_t)n);
+}
+
+/*
+ * nsslibc_memset
+ *
+ * Errors:
+ *  NSS_ERROR_INVALID_POINTER
+ *
+ * Return value:
+ *  NULL on error
+ *  The destination pointer on success
+ */
+
+NSS_IMPLEMENT void *
+nsslibc_memset
+(
+  void *dest,
+  PRUint8 byte,
+  PRUint32 n
+)
+{
+#ifdef NSSDEBUG
+  if( ((void *)NULL == dest) ) {
+    nss_SetError(NSS_ERROR_INVALID_POINTER);
+    return (void *)NULL;
+  }
+#endif /* NSSDEBUG */
+
+  return memset(dest, (int)byte, (size_t)n);
+}
+
+/*
+ * nsslibc_memequal
+ *
+ * Errors:
+ *  NSS_ERROR_INVALID_POINTER
+ *
+ * Return value:
+ *  PR_TRUE if they match
+ *  PR_FALSE if they don't
+ *  PR_FALSE upon error
+ */
+
+NSS_IMPLEMENT PRBool
+nsslibc_memequal
+(
+  const void *a,
+  const void *b,
+  PRUint32 len,
+  PRStatus *statusOpt
+)
+{
+#ifdef NSSDEBUG
+  if( (((void *)NULL == a) || ((void *)NULL == b)) ) {
+    nss_SetError(NSS_ERROR_INVALID_POINTER);
+    if( (PRStatus *)NULL != statusOpt ) {
+      *statusOpt = PR_FAILURE;
+    }
+    return PR_FALSE;
+  }
+#endif /* NSSDEBUG */
+
+  if( (PRStatus *)NULL != statusOpt ) {
+    *statusOpt = PR_SUCCESS;
+  }
+
+  if( 0 == memcmp(a, b, len) ) {
+    return PR_TRUE;
+  } else {
+    return PR_FALSE;
+  }
+}
+
+/*
+ * nsslibc_memcmp
+ */
+
+NSS_IMPLEMENT PRInt32
+nsslibc_memcmp
+(
+  const void *a,
+  const void *b,
+  PRUint32 len,
+  PRStatus *statusOpt
+)
+{
+  int v;
+
+#ifdef NSSDEBUG
+  if( (((void *)NULL == a) || ((void *)NULL == b)) ) {
+    nss_SetError(NSS_ERROR_INVALID_POINTER);
+    if( (PRStatus *)NULL != statusOpt ) {
+      *statusOpt = PR_FAILURE;
+    }
+    return -2;
+  }
+#endif /* NSSDEBUG */
+
+  if( (PRStatus *)NULL != statusOpt ) {
+    *statusOpt = PR_SUCCESS;
+  }
+
+  v = memcmp(a, b, len);
+  return (PRInt32)v;
+}
+
+/*
+ * offsetof is a preprocessor definition
+ */