Movatterモバイル変換

[0]ホーム
URL:

Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly

 Sign up
Appearance settings

Commit067a5cd

Browse files
committed
Avoid bzero/bxopy in favor of more standard library routines.
Marko Kreen
1 parente997758 commit067a5cd

File tree

1 file changed

+27
-32
lines changed

1 file changed

+27
-32
lines changed

‎contrib/pgcrypto/sha2.c‎

Lines changed: 27 additions & 32 deletions
Original file line numberDiff line numberDiff line change
@@ -33,7 +33,7 @@
3333
*
3434
* $From: sha2.c,v 1.1 2001/11/08 00:01:51 adg Exp adg $
3535
*
36-
* $PostgreSQL: pgsql/contrib/pgcrypto/sha2.c,v 1.2 2005/07/11 15:07:59 tgl Exp $
36+
* $PostgreSQL: pgsql/contrib/pgcrypto/sha2.c,v 1.3 2005/07/11 15:40:38 tgl Exp $
3737
*/
3838

3939
#include"postgres.h"
@@ -42,11 +42,6 @@
4242

4343
#include"sha2.h"
4444

45-
#undef bcopy
46-
#undef bzero
47-
#definebcopy(src,dst,len)memcpy((dst), (src), (len))
48-
#definebzero(ptr,len)memset((ptr), 0, (len))
49-
5045
/*
5146
* UNROLLED TRANSFORM LOOP NOTE:
5247
* You can define SHA2_UNROLL_TRANSFORM to use the unrolled transform
@@ -281,8 +276,8 @@ SHA256_Init(SHA256_CTX *context)
281276
{
282277
if (context==NULL)
283278
return;
284-
bcopy(sha256_initial_hash_value,context->state,SHA256_DIGEST_LENGTH);
285-
bzero(context->buffer,SHA256_BLOCK_LENGTH);
279+
memcpy(context->state,sha256_initial_hash_value,SHA256_DIGEST_LENGTH);
280+
memset(context->buffer,0,SHA256_BLOCK_LENGTH);
286281
context->bitcount=0;
287282
}
288283

@@ -466,14 +461,14 @@ SHA256_Update(SHA256_CTX *context, const uint8 *data, size_t len)
466461

467462
if (len >=freespace) {
468463
/* Fill the buffer completely and process it */
469-
bcopy(data,&context->buffer[usedspace],freespace);
464+
memcpy(&context->buffer[usedspace],data,freespace);
470465
context->bitcount+=freespace <<3;
471466
len-=freespace;
472467
data+=freespace;
473468
SHA256_Transform(context,context->buffer);
474469
}else {
475470
/* The buffer is not yet full */
476-
bcopy(data,&context->buffer[usedspace],len);
471+
memcpy(&context->buffer[usedspace],data,len);
477472
context->bitcount+=len <<3;
478473
/* Clean up: */
479474
usedspace=freespace=0;
@@ -489,7 +484,7 @@ SHA256_Update(SHA256_CTX *context, const uint8 *data, size_t len)
489484
}
490485
if (len>0) {
491486
/* There's left-overs, so save 'em */
492-
bcopy(data,context->buffer,len);
487+
memcpy(context->buffer,data,len);
493488
context->bitcount+=len <<3;
494489
}
495490
/* Clean up: */
@@ -514,20 +509,20 @@ SHA256_Final(uint8 digest[], SHA256_CTX *context)
514509

515510
if (usedspace <=SHA256_SHORT_BLOCK_LENGTH) {
516511
/* Set-up for the last transform: */
517-
bzero(&context->buffer[usedspace],SHA256_SHORT_BLOCK_LENGTH-usedspace);
512+
memset(&context->buffer[usedspace],0,SHA256_SHORT_BLOCK_LENGTH-usedspace);
518513
}else {
519514
if (usedspace<SHA256_BLOCK_LENGTH) {
520-
bzero(&context->buffer[usedspace],SHA256_BLOCK_LENGTH-usedspace);
515+
memset(&context->buffer[usedspace],0,SHA256_BLOCK_LENGTH-usedspace);
521516
}
522517
/* Do second-to-last transform: */
523518
SHA256_Transform(context,context->buffer);
524519

525520
/* And set-up for the last transform: */
526-
bzero(context->buffer,SHA256_SHORT_BLOCK_LENGTH);
521+
memset(context->buffer,0,SHA256_SHORT_BLOCK_LENGTH);
527522
}
528523
}else {
529524
/* Set-up for the last transform: */
530-
bzero(context->buffer,SHA256_SHORT_BLOCK_LENGTH);
525+
memset(context->buffer,0,SHA256_SHORT_BLOCK_LENGTH);
531526

532527
/* Begin padding with a 1 bit: */
533528
*context->buffer=0x80;
@@ -547,11 +542,11 @@ SHA256_Final(uint8 digest[], SHA256_CTX *context)
547542
}
548543
}
549544
#endif
550-
bcopy(context->state,digest,SHA256_DIGEST_LENGTH);
545+
memcpy(digest,context->state,SHA256_DIGEST_LENGTH);
551546
}
552547

553548
/* Clean up state data: */
554-
bzero(context,sizeof(*context));
549+
memset(context,0,sizeof(*context));
555550
usedspace=0;
556551
}
557552

@@ -562,8 +557,8 @@ SHA512_Init(SHA512_CTX *context)
562557
{
563558
if (context==NULL)
564559
return;
565-
bcopy(sha512_initial_hash_value,context->state,SHA512_DIGEST_LENGTH);
566-
bzero(context->buffer,SHA512_BLOCK_LENGTH);
560+
memcpy(context->state,sha512_initial_hash_value,SHA512_DIGEST_LENGTH);
561+
memset(context->buffer,0,SHA512_BLOCK_LENGTH);
567562
context->bitcount[0]=context->bitcount[1]=0;
568563
}
569564

@@ -747,14 +742,14 @@ SHA512_Update(SHA512_CTX *context, const uint8 *data, size_t len)
747742

748743
if (len >=freespace) {
749744
/* Fill the buffer completely and process it */
750-
bcopy(data,&context->buffer[usedspace],freespace);
745+
memcpy(&context->buffer[usedspace],data,freespace);
751746
ADDINC128(context->bitcount,freespace <<3);
752747
len-=freespace;
753748
data+=freespace;
754749
SHA512_Transform(context,context->buffer);
755750
}else {
756751
/* The buffer is not yet full */
757-
bcopy(data,&context->buffer[usedspace],len);
752+
memcpy(&context->buffer[usedspace],data,len);
758753
ADDINC128(context->bitcount,len <<3);
759754
/* Clean up: */
760755
usedspace=freespace=0;
@@ -770,7 +765,7 @@ SHA512_Update(SHA512_CTX *context, const uint8 *data, size_t len)
770765
}
771766
if (len>0) {
772767
/* There's left-overs, so save 'em */
773-
bcopy(data,context->buffer,len);
768+
memcpy(context->buffer,data,len);
774769
ADDINC128(context->bitcount,len <<3);
775770
}
776771
/* Clean up: */
@@ -794,20 +789,20 @@ SHA512_Last(SHA512_CTX *context)
794789

795790
if (usedspace <=SHA512_SHORT_BLOCK_LENGTH) {
796791
/* Set-up for the last transform: */
797-
bzero(&context->buffer[usedspace],SHA512_SHORT_BLOCK_LENGTH-usedspace);
792+
memset(&context->buffer[usedspace],0,SHA512_SHORT_BLOCK_LENGTH-usedspace);
798793
}else {
799794
if (usedspace<SHA512_BLOCK_LENGTH) {
800-
bzero(&context->buffer[usedspace],SHA512_BLOCK_LENGTH-usedspace);
795+
memset(&context->buffer[usedspace],0,SHA512_BLOCK_LENGTH-usedspace);
801796
}
802797
/* Do second-to-last transform: */
803798
SHA512_Transform(context,context->buffer);
804799

805800
/* And set-up for the last transform: */
806-
bzero(context->buffer,SHA512_BLOCK_LENGTH-2);
801+
memset(context->buffer,0,SHA512_BLOCK_LENGTH-2);
807802
}
808803
}else {
809804
/* Prepare for final transform: */
810-
bzero(context->buffer,SHA512_SHORT_BLOCK_LENGTH);
805+
memset(context->buffer,0,SHA512_SHORT_BLOCK_LENGTH);
811806

812807
/* Begin padding with a 1 bit: */
813808
*context->buffer=0x80;
@@ -837,11 +832,11 @@ SHA512_Final(uint8 digest[], SHA512_CTX *context)
837832
}
838833
}
839834
#endif
840-
bcopy(context->state,digest,SHA512_DIGEST_LENGTH);
835+
memcpy(digest,context->state,SHA512_DIGEST_LENGTH);
841836
}
842837

843838
/* Zero out state data */
844-
bzero(context,sizeof(*context));
839+
memset(context,0,sizeof(*context));
845840
}
846841

847842

@@ -851,8 +846,8 @@ SHA384_Init(SHA384_CTX *context)
851846
{
852847
if (context==NULL)
853848
return;
854-
bcopy(sha384_initial_hash_value,context->state,SHA512_DIGEST_LENGTH);
855-
bzero(context->buffer,SHA384_BLOCK_LENGTH);
849+
memcpy(context->state,sha384_initial_hash_value,SHA512_DIGEST_LENGTH);
850+
memset(context->buffer,0,SHA384_BLOCK_LENGTH);
856851
context->bitcount[0]=context->bitcount[1]=0;
857852
}
858853

@@ -879,9 +874,9 @@ SHA384_Final(uint8 digest[], SHA384_CTX *context)
879874
}
880875
}
881876
#endif
882-
bcopy(context->state,digest,SHA384_DIGEST_LENGTH);
877+
memcpy(digest,context->state,SHA384_DIGEST_LENGTH);
883878
}
884879

885880
/* Zero out state data */
886-
bzero(context,sizeof(*context));
881+
memset(context,0,sizeof(*context));
887882
}

0 commit comments

Comments
 (0)
[8]ページ先頭
©2009-2025 Movatter.jp