# fix warnings for:
# aes.c: In function 'krb5int_aes_encrypt':
# aes.c:72: warning: pointer targets in passing argument 1 of 'krb5int_aes_enc_blk' differ in signedness
# aes.c:72: warning: pointer targets in passing argument 2 of 'krb5int_aes_enc_blk' differ in signedness
# aes.c:77: warning: pointer targets in passing argument 1 of 'xorblock' differ in signedness
# aes.c:86: warning: pointer targets in passing argument 1 of 'xorblock' differ in signedness
# aes.c:94: warning: pointer targets in passing argument 1 of 'xorblock' differ in signedness
# aes.c:94: warning: pointer targets in passing argument 2 of 'xorblock' differ in signedness
# aes.c: In function 'krb5int_aes_decrypt':
# aes.c:127: warning: pointer targets in passing argument 1 of 'krb5int_aes_dec_blk' differ in signedness
# aes.c:127: warning: pointer targets in passing argument 2 of 'krb5int_aes_dec_blk' differ in signedness
# aes.c:131: warning: pointer targets in passing argument 1 of 'krb5int_aes_dec_blk' differ in signedness
# aes.c:132: warning: pointer targets in passing argument 1 of 'xorblock' differ in signedness
# aes.c:132: warning: pointer targets in passing argument 2 of 'xorblock' differ in signedness
# aes.c:138: warning: pointer targets in passing argument 1 of 'krb5int_aes_dec_blk' differ in signedness
# aes.c:145: warning: pointer targets in passing argument 1 of 'xorblock' differ in signedness
# aes.c:145: warning: pointer targets in passing argument 2 of 'xorblock' differ in signedness
# aes.c:154: warning: pointer targets in passing argument 1 of 'xorblock' differ in signedness
# aes.c:154: warning: pointer targets in passing argument 2 of 'xorblock' differ in signedness
#
--- src/lib/crypto/enc_provider/aes.c
+++ src/lib/crypto/enc_provider/aes.c	2006/06/21 10:50:23
@@ -40,7 +40,7 @@
 #define enc(OUT, IN, CTX) (aes_enc_blk((IN),(OUT),(CTX)) == aes_good ? (void) 0 : abort())
 #define dec(OUT, IN, CTX) (aes_dec_blk((IN),(OUT),(CTX)) == aes_good ? (void) 0 : abort())
 
-static void xorblock(char *out, const char *in)
+static void xorblock(unsigned char *out, const unsigned char *in)
 {
     int z;
     for (z = 0; z < BLOCK_SIZE; z++)
@@ -69,12 +69,12 @@
 
     if (nblocks == 1) {
 	/* XXX Used for DK function.  */
-	enc(output->data, input->data, &ctx);
+	enc((unsigned char*)output->data, (unsigned char*)input->data, &ctx);
     } else {
 	unsigned int nleft;
 
 	for (blockno = 0; blockno < nblocks - 2; blockno++) {
-	    xorblock(tmp, input->data + blockno * BLOCK_SIZE);
+	    xorblock(tmp, (unsigned char*) input->data + blockno * BLOCK_SIZE);
 	    enc(tmp2, tmp, &ctx);
 	    memcpy(output->data + blockno * BLOCK_SIZE, tmp2, BLOCK_SIZE);
 
@@ -83,7 +83,7 @@
 	}
 	/* Do final CTS step for last two blocks (the second of which
 	   may or may not be incomplete).  */
-	xorblock(tmp, input->data + (nblocks - 2) * BLOCK_SIZE);
+	xorblock(tmp, (unsigned char*) input->data + (nblocks - 2) * BLOCK_SIZE);
 	enc(tmp2, tmp, &ctx);
 	nleft = input->length - (nblocks - 1) * BLOCK_SIZE;
 	memcpy(output->data + (nblocks - 1) * BLOCK_SIZE, tmp2, nleft);
@@ -124,18 +124,18 @@
     if (nblocks == 1) {
 	if (input->length < BLOCK_SIZE)
 	    abort();
-	dec(output->data, input->data, &ctx);
+	dec((unsigned char*)output->data, (unsigned char*) input->data, &ctx);
     } else {
 
 	for (blockno = 0; blockno < nblocks - 2; blockno++) {
-	    dec(tmp2, input->data + blockno * BLOCK_SIZE, &ctx);
+	    dec(tmp2, (unsigned char*)input->data + blockno * BLOCK_SIZE, &ctx);
 	    xorblock(tmp2, tmp);
 	    memcpy(output->data + blockno * BLOCK_SIZE, tmp2, BLOCK_SIZE);
 	    memcpy(tmp, input->data + blockno * BLOCK_SIZE, BLOCK_SIZE);
 	}
 	/* Do last two blocks, the second of which (next-to-last block
 	   of plaintext) may be incomplete.  */
-	dec(tmp2, input->data + (nblocks - 2) * BLOCK_SIZE, &ctx);
+	dec(tmp2, (unsigned char*) input->data + (nblocks - 2) * BLOCK_SIZE, &ctx);
 	/* Set tmp3 to last ciphertext block, padded.  */
 	memset(tmp3, 0, sizeof(tmp3));
 	memcpy(tmp3, input->data + (nblocks - 1) * BLOCK_SIZE,