Delete bundled copy of NSS and replace with README.

nss/lib/freebl/alghmac.c

Index: nss/lib/freebl/alghmac.c
diff --git a/nss/lib/freebl/alghmac.c b/nss/lib/freebl/alghmac.c
deleted file mode 100644
index 9b845cff1d244d8e0765a171025bc5246721db16..0000000000000000000000000000000000000000
--- a/nss/lib/freebl/alghmac.c
+++ /dev/null
@@ -1,165 +0,0 @@
-/* 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/. */
-
-#ifdef FREEBL_NO_DEPEND
-#include "stubs.h"
-#endif
-
-#include "secport.h"
-#include "hasht.h"
-#include "blapit.h"
-#include "alghmac.h"
-#include "secerr.h"
-
-#define HMAC_PAD_SIZE HASH_BLOCK_LENGTH_MAX
-
-struct HMACContextStr {
-    void *hash;
-    const SECHashObject *hashobj;
-    PRBool        wasAllocated;
-    unsigned char ipad[HMAC_PAD_SIZE];
-    unsigned char opad[HMAC_PAD_SIZE];
-};
-
-void
-HMAC_Destroy(HMACContext *cx, PRBool freeit)
-{
-    if (cx == NULL)
-	return;
-
-    PORT_Assert(!freeit == !cx->wasAllocated);
-    if (cx->hash != NULL) {
-	cx->hashobj->destroy(cx->hash, PR_TRUE);
-	PORT_Memset(cx, 0, sizeof *cx);
-    }
-    if (freeit)
-	PORT_Free(cx);
-}
-
-SECStatus
-HMAC_Init( HMACContext * cx, const SECHashObject *hash_obj, 
-	   const unsigned char *secret, unsigned int secret_len, PRBool isFIPS)
-{
-    unsigned int i;
-    unsigned char hashed_secret[HASH_LENGTH_MAX];
-
-    /* required by FIPS 198 Section 3 */
-    if (isFIPS && secret_len < hash_obj->length/2) {
-	PORT_SetError(SEC_ERROR_INVALID_ARGS);
-	return SECFailure;
-    }
-    if (cx == NULL) {
-	PORT_SetError(SEC_ERROR_INVALID_ARGS);
-	return SECFailure;
-    }
-    cx->wasAllocated = PR_FALSE;
-    cx->hashobj = hash_obj;
-    cx->hash = cx->hashobj->create();
-    if (cx->hash == NULL)
-	goto loser;
-
-    if (secret_len > cx->hashobj->blocklength) {
-	cx->hashobj->begin( cx->hash);
-	cx->hashobj->update(cx->hash, secret, secret_len);
-	PORT_Assert(cx->hashobj->length <= sizeof hashed_secret);
-	cx->hashobj->end(   cx->hash, hashed_secret, &secret_len, 
-	                 sizeof hashed_secret);
-	if (secret_len != cx->hashobj->length) {
-	    PORT_SetError(SEC_ERROR_LIBRARY_FAILURE);
-	    goto loser;
-	}
-	secret = (const unsigned char *)&hashed_secret[0];
-    }
-
-    PORT_Memset(cx->ipad, 0x36, cx->hashobj->blocklength);
-    PORT_Memset(cx->opad, 0x5c, cx->hashobj->blocklength);
-
-    /* fold secret into padding */
-    for (i = 0; i < secret_len; i++) {
-	cx->ipad[i] ^= secret[i];
-	cx->opad[i] ^= secret[i];
-    }
-    PORT_Memset(hashed_secret, 0, sizeof hashed_secret);
-    return SECSuccess;
-
-loser:
-    PORT_Memset(hashed_secret, 0, sizeof hashed_secret);
-    if (cx->hash != NULL)
-	cx->hashobj->destroy(cx->hash, PR_TRUE);
-    return SECFailure;
-}
-
-HMACContext *
-HMAC_Create(const SECHashObject *hash_obj, const unsigned char *secret, 
-            unsigned int secret_len, PRBool isFIPS)
-{
-    SECStatus rv;
-    HMACContext * cx = PORT_ZNew(HMACContext);
-    if (cx == NULL)
-	return NULL;
-    rv = HMAC_Init(cx, hash_obj, secret, secret_len, isFIPS);
-    cx->wasAllocated = PR_TRUE;
-    if (rv != SECSuccess) {
-	PORT_Free(cx); /* contains no secret info */
-	cx = NULL;
-    }
-    return cx;
-}
-
-void
-HMAC_Begin(HMACContext *cx)
-{
-    /* start inner hash */
-    cx->hashobj->begin(cx->hash);
-    cx->hashobj->update(cx->hash, cx->ipad, cx->hashobj->blocklength);
-}
-
-void
-HMAC_Update(HMACContext *cx, const unsigned char *data, unsigned int data_len)
-{
-    cx->hashobj->update(cx->hash, data, data_len);
-}
-
-SECStatus
-HMAC_Finish(HMACContext *cx, unsigned char *result, unsigned int *result_len,
-	    unsigned int max_result_len)
-{
-    if (max_result_len < cx->hashobj->length) {
-	PORT_SetError(SEC_ERROR_INVALID_ARGS);
-	return SECFailure;
-    }
-
-    cx->hashobj->end(cx->hash, result, result_len, max_result_len);
-    if (*result_len != cx->hashobj->length)
-	return SECFailure;
-
-    cx->hashobj->begin(cx->hash);
-    cx->hashobj->update(cx->hash, cx->opad, cx->hashobj->blocklength);
-    cx->hashobj->update(cx->hash, result, *result_len);
-    cx->hashobj->end(cx->hash, result, result_len, max_result_len);
-    return SECSuccess;
-}
-
-HMACContext *
-HMAC_Clone(HMACContext *cx)
-{
-    HMACContext *newcx;
-
-    newcx = (HMACContext*)PORT_ZAlloc(sizeof(HMACContext));
-    if (newcx == NULL)
-	goto loser;
-
-    newcx->wasAllocated = PR_TRUE;
-    newcx->hashobj = cx->hashobj;
-    newcx->hash = cx->hashobj->clone(cx->hash);
-    if (newcx->hash == NULL)
-	goto loser;
-    PORT_Memcpy(newcx->ipad, cx->ipad, cx->hashobj->blocklength);
-    PORT_Memcpy(newcx->opad, cx->opad, cx->hashobj->blocklength);
-    return newcx;
-
-loser:
-    HMAC_Destroy(newcx, PR_TRUE);
-    return NULL;
-}