Delete bundled copy of NSS and replace with README.

nss/lib/softoken/padbuf.c

-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-#include "blapit.h"
-#include "secport.h"
-#include "secerr.h"
-
-/*
- * Prepare a buffer for any padded CBC encryption algorithm, growing to the 
- * appropriate boundary and filling with the appropriate padding.
- * blockSize must be a power of 2.
- *
- * NOTE: If arena is non-NULL, we re-allocate from there, otherwise
- * we assume (and use) XP memory (re)allocation.
- */
-unsigned char *
-CBC_PadBuffer(PLArenaPool *arena, unsigned char *inbuf, unsigned int inlen,
-              unsigned int *outlen, int blockSize)
-{
-    unsigned char *outbuf;
-    unsigned int   des_len;
-    unsigned int   i;
-    unsigned char  des_pad_len;
-
-    /*
-     * We need from 1 to blockSize bytes -- we *always* grow.
-     * The extra bytes contain the value of the length of the padding:
-     * if we have 2 bytes of padding, then the padding is "0x02, 0x02".
-     */
-    des_len = (inlen + blockSize) & ~(blockSize - 1);
-
-    if (arena != NULL) {
-        outbuf = (unsigned char*)PORT_ArenaGrow (arena, inbuf, inlen, des_len);
-    } else {
-        outbuf = (unsigned char*)PORT_Realloc (inbuf, des_len);
-    }
-
-    if (outbuf == NULL) {
-        PORT_SetError (SEC_ERROR_NO_MEMORY);
-        return NULL;
-    }
-
-    des_pad_len = des_len - inlen;
-    for (i = inlen; i < des_len; i++)
-        outbuf[i] = des_pad_len;
-
-    *outlen = des_len;
-    return outbuf;
-}