Use a common source file for all the hash helper functions that

previously lived in foohl.c.  The foohl.c files are now generated
via sed, though perhaps cpp could be used in the future.

Use u_int8_t instead of unsigned char for the buffers struct fooContext.
Add constants for buffer lengths and use them in function prototypes
and the man pages.

This is basically cosmetic surgery; there should be no functional changes.

OK deraadt@

8 files changed, 85 insertions, 314 deletions

diff --git a/lib/libc/hash/Makefile.inc b/lib/libc/hash/Makefile.inc
index 21500da4ca4..6d9df011903 100644
--- a/lib/libc/hash/Makefile.inc
+++ b/lib/libc/hash/Makefile.inc
@@ -1,9 +1,10 @@
-#	$OpenBSD: Makefile.inc,v 1.14 2003/05/08 23:34:55 millert Exp $
+#	$OpenBSD: Makefile.inc,v 1.15 2004/04/26 19:38:12 millert Exp $
 
 # hash functions
 .PATH: ${LIBCSRCDIR}/hash
 
-SRCS+=	rmd160.c rmd160hl.c sha1.c sha1hl.c sha2.c sha2hl.c
+HELPER=	rmd160hl.c sha1hl.c sha256hl.c sha384hl.c sha512hl.c
+SRCS+=	rmd160.c sha1.c sha2.c ${HELPER}
 MAN+=	rmd160.3 sha1.3 sha2.3
 MLINKS+=rmd160.3 RMD160Init.3 rmd160.3 RMD160Update.3 rmd160.3 RMD160Final.3
 MLINKS+=rmd160.3 RMD160End.3  rmd160.3 RMD160File.3   rmd160.3 RMD160Data.3
@@ -17,3 +18,21 @@ MLINKS+=sha2.3 SHA384_Init.3 sha2.3 SHA384_Update.3 sha2.3 SHA384_Final.3
 MLINKS+=sha2.3 SHA384_End.3  sha2.3 SHA384_File.3   sha2.3 SHA384_Data.3
 MLINKS+=sha2.3 SHA512_Init.3 sha2.3 SHA512_Update.3 sha2.3 SHA512_Final.3
 MLINKS+=sha2.3 SHA512_End.3  sha2.3 SHA512_File.3   sha2.3 SHA512_Data.3
+CLEANFILES+= ${HELPER}
+
+rmd160hl.c:	helper.c
+	sed -e 's/hashinc/rmd160.h/g' -e 's/HASH/RMD160/g' $> > $@
+
+sha1hl.c:	helper.c
+	sed -e 's/hashinc/sha1.h/g' -e 's/HASH/SHA1/g' $> > $@
+
+sha256hl.c:	helper.c
+	sed -e 's/hashinc/sha2.h/g' -e 's/HASH_\{0,1\}/SHA256_/g' $> > $@
+
+sha384hl.c:	helper.c
+	sed -e 's/hashinc/sha2.h/g' -e 's/HASH_\{0,1\}/SHA384_/g' $> > $@
+
+sha512hl.c:	helper.c
+	sed -e 's/hashinc/sha2.h/g' -e 's/HASH_\{0,1\}/SHA512_/g' $> > $@
+
+beforedepend: rmd160hl.c sha1hl.c sha256hl.c sha384hl.c sha512hl.c
diff --git a/lib/libc/hash/rmd160hl.c b/lib/libc/hash/helper.c
index 043eff87eb1..f7dd752dcf1 100644
--- a/lib/libc/hash/rmd160hl.c
+++ b/lib/libc/hash/helper.c
@@ -1,4 +1,6 @@
-/* rmd160hl.c
+/*	$OpenBSD: helper.c,v 1.1 2004/04/26 19:38:12 millert Exp $	*/
+
+/*
  * ----------------------------------------------------------------------------
  * "THE BEER-WARE LICENSE" (Revision 42):
  * <phk@login.dkuug.dk> wrote this file.  As long as you retain this notice you
@@ -8,32 +10,33 @@
  */
 
 #if defined(LIBC_SCCS) && !defined(lint)
-static char rcsid[] = "$OpenBSD: rmd160hl.c,v 1.5 2003/05/09 16:46:31 millert Exp $";
+static const char rcsid[] = "$OpenBSD: helper.c,v 1.1 2004/04/26 19:38:12 millert Exp $";
 #endif /* LIBC_SCCS and not lint */
 
 #include <sys/types.h>
 
 #include <errno.h>
 #include <fcntl.h>
-#include <rmd160.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
 #include <unistd.h>
 
+#include <hashinc>
+
 /* ARGSUSED */
 char *
-RMD160End(RMD160_CTX *ctx, char *buf)
+HASHEnd(HASH_CTX *ctx, char buf[HASH_DIGEST_STRING_LENGTH])
 {
     int i;
-    u_char digest[20];
-    static const char hex[]="0123456789abcdef";
+    u_char digest[HASH_DIGEST_LENGTH];
+    static const char hex[] = "0123456789abcdef";
 
-    if (buf == NULL && (buf = malloc(41)) == NULL)
+    if (buf == NULL && (buf = malloc(HASH_DIGEST_STRING_LENGTH)) == NULL)
 	return(NULL);
 
-    RMD160Final(digest, ctx);
-    for (i = 0; i < 20; i++) {
+    HASHFinal(digest,ctx);
+    for (i = 0; i < HASH_DIGEST_LENGTH; i++) {
 	buf[i + i] = hex[digest[i] >> 4];
 	buf[i + i + 1] = hex[digest[i] & 0x0f];
     }
@@ -43,32 +46,32 @@ RMD160End(RMD160_CTX *ctx, char *buf)
 }
 
 char *
-RMD160File (char *filename, char *buf)
+HASHFile(char *filename, char buf[HASH_DIGEST_STRING_LENGTH])
 {
     u_char buffer[BUFSIZ];
-    RMD160_CTX ctx;
+    HASH_CTX ctx;
     int fd, num, oerrno;
 
-    RMD160Init(&ctx);
+    HASHInit(&ctx);
 
     if ((fd = open(filename, O_RDONLY)) < 0)
 	return(0);
 
     while ((num = read(fd, buffer, sizeof(buffer))) > 0)
-	RMD160Update(&ctx, buffer, num);
+	HASHUpdate(&ctx, buffer, num);
 
     oerrno = errno;
     close(fd);
     errno = oerrno;
-    return(num < 0 ? 0 : RMD160End(&ctx, buf));
+    return(num < 0 ? 0 : HASHEnd(&ctx, buf));
 }
 
 char *
-RMD160Data (const u_char *data, size_t len, char *buf)
+HASHData(const u_char *data, size_t len, char buf[HASH_DIGEST_STRING_LENGTH])
 {
-    RMD160_CTX ctx;
+    HASH_CTX ctx;
 
-    RMD160Init(&ctx);
-    RMD160Update(&ctx, data, len);
-    return(RMD160End(&ctx, buf));
+    HASHInit(&ctx);
+    HASHUpdate(&ctx, data, len);
+    return(HASHEnd(&ctx, buf));
 }
diff --git a/lib/libc/hash/rmd160.3 b/lib/libc/hash/rmd160.3
index 65b84a1f61c..8e8eecef269 100644
--- a/lib/libc/hash/rmd160.3
+++ b/lib/libc/hash/rmd160.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: rmd160.3,v 1.20 2003/06/25 19:33:34 deraadt Exp $
+.\"	$OpenBSD: rmd160.3,v 1.21 2004/04/26 19:38:12 millert Exp $
 .\"
 .\" Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
 .\"
@@ -35,17 +35,17 @@
 .Ft void
 .Fn RMD160Init "RMD160_CTX *context"
 .Ft void
-.Fn RMD160Update "RMD160_CTX *context" "const u_char *data" "u_int32_t nbytes"
+.Fn RMD160Update "RMD160_CTX *context" "const u_int8_t *data" "u_int32_t nbytes"
 .Ft void
-.Fn RMD160Final "u_char digest[20]" "RMD160_CTX *context"
+.Fn RMD160Final "u_int8_t digest[RMD160_DIGEST_LENGTH]" "RMD160_CTX *context"
 .Ft void
-.Fn RMD160Transform "u_int32_t state[5]" "const u_char block[64]"
+.Fn RMD160Transform "u_int32_t state[5]" "const u_int8_t block[RMD160_BLOCK_LENGTH]"
 .Ft "char *"
-.Fn RMD160End "RMD160_CTX *context" "char *buf"
+.Fn RMD160End "RMD160_CTX *context" "char buf[RMD160_DIGEST_STRING_LENGTH]"
 .Ft "char *"
-.Fn RMD160File "char *filename" "char *buf"
+.Fn RMD160File "char *filename" "char buf[RMD160_DIGEST_STRING_LENGTH]"
 .Ft "char *"
-.Fn RMD160Data "const u_char *data" "size_t len" "char *buf"
+.Fn RMD160Data "const u_int8_t *data" "size_t len" "char buf[RMD160_DIGEST_STRING_LENGTH]"
 .Sh DESCRIPTION
 The RMD160 functions implement the 160-bit RIPE message digest hash algorithm
 (RMD-160).
@@ -147,19 +147,19 @@ The follow code fragment will calculate the digest for
 the string "abc" which is ``0x8eb208f7e05d987a9b044a8e98c6b087f15a0bfc''.
 .Bd -literal -offset indent
 RMD160_CTX rmd;
-u_char results[20];
+u_int8_t results[RMD160_DIGEST_LENGTH];
 char *buf;
 int n;
 
 buf = "abc";
 n = strlen(buf);
 RMD160Init(&rmd);
-RMD160Update(&rmd, (u_char *)buf, n);
+RMD160Update(&rmd, (u_int8_t *)buf, n);
 RMD160Final(results, &rmd);
 
 /* Print the digest as one long hex value */
 printf("0x");
-for (n = 0; n < 20; n++)
+for (n = 0; n < RMD160_DIGEST_LENGTH; n++)
 	printf("%02x", results[n]);
 putchar('\en');
 .Ed
@@ -167,7 +167,7 @@ putchar('\en');
 Alternately, the helper functions could be used in the following way:
 .Bd -literal -offset indent
 RMD160_CTX rmd;
-u_char output[41];
+u_int8_t output[RMD160_DIGEST_STRING_LENGTH];
 char *buf = "abc";
 
 printf("0x%s\en", RMD160Data(buf, strlen(buf), output));
diff --git a/lib/libc/hash/rmd160.c b/lib/libc/hash/rmd160.c
index f1d6cf72fab..e38843dead5 100644
--- a/lib/libc/hash/rmd160.c
+++ b/lib/libc/hash/rmd160.c
@@ -32,7 +32,7 @@
 #include <rmd160.h>
 
 #if defined(LIBC_SCCS) && !defined(lint)
-static char rcsid[] = "$OpenBSD: rmd160.c,v 1.13 2003/12/14 11:22:35 markus Exp $";
+static char rcsid[] = "$OpenBSD: rmd160.c,v 1.14 2004/04/26 19:38:12 millert Exp $";
 #endif /* LIBC_SCCS and not lint */
 
 #define PUT_64BIT_LE(cp, value) do {                                    \
@@ -86,7 +86,7 @@ static char rcsid[] = "$OpenBSD: rmd160.c,v 1.13 2003/12/14 11:22:35 markus Exp
 
 #define X(i)	x[i]
 
-static u_char PADDING[64] = {
+static u_char PADDING[RMD160_BLOCK_LENGTH] = {
 	0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
@@ -108,8 +108,8 @@ RMD160Update(RMD160_CTX *ctx, const u_char *input, u_int32_t len)
 {
 	u_int32_t have, off, need;
 
-	have = (ctx->count/8) % 64;
-	need = 64 - have;
+	have = (ctx->count / 8) % RMD160_BLOCK_LENGTH;
+	need = RMD160_BLOCK_LENGTH - have;
 	ctx->count += 8 * len;
 	off = 0;
 
@@ -121,9 +121,9 @@ RMD160Update(RMD160_CTX *ctx, const u_char *input, u_int32_t len)
 			have = 0;
 		}
 		/* now the buffer is empty */
-		while (off + 64 <= len) {
+		while (off + RMD160_BLOCK_LENGTH <= len) {
 			RMD160Transform(ctx->state, input+off);
-			off += 64;
+			off += RMD160_BLOCK_LENGTH;
 		}
 	}
 	if (off < len)
@@ -131,7 +131,7 @@ RMD160Update(RMD160_CTX *ctx, const u_char *input, u_int32_t len)
 }
 
 void
-RMD160Final(u_char digest[20], RMD160_CTX *ctx)
+RMD160Final(u_char digest[RMD160_DIGEST_LENGTH], RMD160_CTX *ctx)
 {
 	int i;
 	u_char size[8];
@@ -140,12 +140,12 @@ RMD160Final(u_char digest[20], RMD160_CTX *ctx)
 	PUT_64BIT_LE(size, ctx->count);
 
 	/*
-	 * pad to 64 byte blocks, at least one byte from PADDING plus 8 bytes
-	 * for the size
+	 * pad to RMD160_BLOCK_LENGTH byte blocks, at least one byte from
+	 * PADDING plus 8 bytes for the size
 	 */
-	padlen = 64 - ((ctx->count/8) % 64);
+	padlen = RMD160_BLOCK_LENGTH - ((ctx->count / 8) % RMD160_BLOCK_LENGTH);
 	if (padlen < 1 + 8)
-		padlen += 64;
+		padlen += RMD160_BLOCK_LENGTH;
 	RMD160Update(ctx, PADDING, padlen - 8);		/* padlen - 8 <= 64 */
 	RMD160Update(ctx, size, 8);
 
@@ -157,12 +157,12 @@ RMD160Final(u_char digest[20], RMD160_CTX *ctx)
 }
 
 void
-RMD160Transform(u_int32_t state[5], const u_char block[64])
+RMD160Transform(u_int32_t state[5], const u_char block[RMD160_BLOCK_LENGTH])
 {
 	u_int32_t a, b, c, d, e, aa, bb, cc, dd, ee, t, x[16];
 
 #if BYTE_ORDER == LITTLE_ENDIAN
-	memcpy(x, block, 64);
+	memcpy(x, block, RMD160_BLOCK_LENGTH);
 #else
 	int i;
 
diff --git a/lib/libc/hash/sha1.3 b/lib/libc/hash/sha1.3
index 4d753ca7966..9b5b001d238 100644
--- a/lib/libc/hash/sha1.3
+++ b/lib/libc/hash/sha1.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: sha1.3,v 1.26 2003/06/25 19:33:34 deraadt Exp $
+.\"	$OpenBSD: sha1.3,v 1.27 2004/04/26 19:38:12 millert Exp $
 .\"
 .\" Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
 .\"
@@ -35,17 +35,17 @@
 .Ft void
 .Fn SHA1Init "SHA1_CTX *context"
 .Ft void
-.Fn SHA1Update "SHA1_CTX *context" "const u_char *data" "u_int len"
+.Fn SHA1Update "SHA1_CTX *context" "const u_int8_t *data" "u_int len"
 .Ft void
-.Fn SHA1Final "u_char digest[20]" "SHA1_CTX *context"
+.Fn SHA1Final "u_int8_t digest[SHA1_DIGEST_LENGTH]" "SHA1_CTX *context"
 .Ft void
-.Fn SHA1Transform "u_int32_t state[5]" "u_char buffer[64]"
+.Fn SHA1Transform "u_int32_t state[5]" "u_int8_t buffer[SHA1_BLOCK_LENGTH]"
 .Ft "char *"
-.Fn SHA1End "SHA1_CTX *context" "char *buf"
+.Fn SHA1End "SHA1_CTX *context" "char buf[SHA1_DIGEST_STRING_LENGTH]"
 .Ft "char *"
-.Fn SHA1File "char *filename" "char *buf"
+.Fn SHA1File "char *filename" "char buf[SHA1_DIGEST_STRING_LENGTH]"
 .Ft "char *"
-.Fn SHA1Data "const u_char *data" "u_int len" "char *buf"
+.Fn SHA1Data "const u_int8_t *data" "u_int len" "char buf[SHA1_DIGEST_STRING_LENGTH]"
 .Sh DESCRIPTION
 The SHA1 functions implement the NIST Secure Hash Algorithm (SHA-1),
 FIPS PUB 180-1.
@@ -144,19 +144,19 @@ The follow code fragment will calculate the digest for
 the string "abc" which is ``0xa9993e36476816aba3e25717850c26c9cd0d89d''.
 .Bd -literal -offset indent
 SHA1_CTX sha;
-u_char results[20];
+u_int8_t results[SHA1_DIGEST_LENGTH];
 char *buf;
 int n;
 
 buf = "abc";
 n = strlen(buf);
 SHA1Init(&sha);
-SHA1Update(&sha, (u_char *)buf, n);
+SHA1Update(&sha, (u_int8_t *)buf, n);
 SHA1Final(results, &sha);
 
 /* Print the digest as one long hex value */
 printf("0x");
-for (n = 0; n < 20; n++)
+for (n = 0; n < SHA1_DIGEST_LENGTH; n++)
 	printf("%02x", results[n]);
 putchar('\en');
 .Ed
@@ -164,7 +164,7 @@ putchar('\en');
 Alternately, the helper functions could be used in the following way:
 .Bd -literal -offset indent
 SHA1_CTX sha;
-u_char output[41];
+u_int8_t output[SHA1_DIGEST_STRING_LENGTH];
 char *buf = "abc";
 
 printf("0x%s\en", SHA1Data(buf, strlen(buf), output));
diff --git a/lib/libc/hash/sha1.c b/lib/libc/hash/sha1.c
index 66246e8d214..cda161a05d5 100644
--- a/lib/libc/hash/sha1.c
+++ b/lib/libc/hash/sha1.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: sha1.c,v 1.13 2004/03/31 23:41:53 brad Exp $	*/
+/*	$OpenBSD: sha1.c,v 1.14 2004/04/26 19:38:12 millert Exp $	*/
 
 /*
  * SHA-1 in C
@@ -15,7 +15,7 @@
  */
 
 #if defined(LIBC_SCCS) && !defined(lint)
-static char rcsid[] = "$OpenBSD: sha1.c,v 1.13 2004/03/31 23:41:53 brad Exp $";
+static char rcsid[] = "$OpenBSD: sha1.c,v 1.14 2004/04/26 19:38:12 millert Exp $";
 #endif /* LIBC_SCCS and not lint */
 
 #define SHA1HANDSOFF		/* Copies data before messing with it. */
@@ -52,7 +52,7 @@ static char rcsid[] = "$OpenBSD: sha1.c,v 1.13 2004/03/31 23:41:53 brad Exp $";
  * Hash a single 512-bit block. This is the core of the algorithm.
  */
 void
-SHA1Transform(u_int32_t state[5], const u_char buffer[64])
+SHA1Transform(u_int32_t state[5], const u_char buffer[SHA1_BLOCK_LENGTH])
 {
     u_int32_t a, b, c, d, e;
     typedef union {
@@ -62,9 +62,9 @@ SHA1Transform(u_int32_t state[5], const u_char buffer[64])
     CHAR64LONG16 *block;
 
 #ifdef SHA1HANDSOFF
-    u_char workspace[64];
+    u_char workspace[SHA1_BLOCK_LENGTH];
     block = (CHAR64LONG16 *)workspace;
-    (void)memcpy(block, buffer, 64);
+    (void)memcpy(block, buffer, SHA1_BLOCK_LENGTH);
 #else
     block = (CHAR64LONG16 *)buffer;
 #endif
@@ -156,7 +156,7 @@ SHA1Update(SHA1_CTX *context, const u_char *data, u_int len)
  * Add padding and return the message digest.
  */
 void
-SHA1Final(u_char digest[20], SHA1_CTX *context)
+SHA1Final(u_char digest[SHA1_DIGEST_LENGTH], SHA1_CTX *context)
 {
     u_int i;
     u_char finalcount[8];
@@ -171,7 +171,7 @@ SHA1Final(u_char digest[20], SHA1_CTX *context)
     SHA1Update(context, finalcount, 8);  /* Should cause a SHA1Transform() */
 
     if (digest) {
-	for (i = 0; i < 20; i++)
+	for (i = 0; i < SHA1_DIGEST_LENGTH; i++)
 	    digest[i] = (u_char)
 		((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255);
     }
diff --git a/lib/libc/hash/sha1hl.c b/lib/libc/hash/sha1hl.c
deleted file mode 100644
index a30273aec99..00000000000
--- a/lib/libc/hash/sha1hl.c
+++ /dev/null
@@ -1,74 +0,0 @@
-/* sha1hl.c
- * ----------------------------------------------------------------------------
- * "THE BEER-WARE LICENSE" (Revision 42):
- * <phk@login.dkuug.dk> wrote this file.  As long as you retain this notice you
- * can do whatever you want with this stuff. If we meet some day, and you think
- * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
- * ----------------------------------------------------------------------------
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static const char rcsid[] = "$OpenBSD: sha1hl.c,v 1.5 2003/05/09 16:46:31 millert Exp $";
-#endif /* LIBC_SCCS and not lint */
-
-#include <sys/types.h>
-
-#include <errno.h>
-#include <fcntl.h>
-#include <sha1.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-
-/* ARGSUSED */
-char *
-SHA1End(SHA1_CTX *ctx, char *buf)
-{
-    int i;
-    u_char digest[20];
-    static const char hex[]="0123456789abcdef";
-
-    if (buf == NULL && (buf = malloc(41)) == NULL)
-	return(NULL);
-
-    SHA1Final(digest,ctx);
-    for (i = 0; i < 20; i++) {
-	buf[i + i] = hex[digest[i] >> 4];
-	buf[i + i + 1] = hex[digest[i] & 0x0f];
-    }
-    buf[i + i] = '\0';
-    memset(digest, 0, sizeof(digest));
-    return(buf);
-}
-
-char *
-SHA1File (char *filename, char *buf)
-{
-    u_char buffer[BUFSIZ];
-    SHA1_CTX ctx;
-    int fd, num, oerrno;
-
-    SHA1Init(&ctx);
-
-    if ((fd = open(filename, O_RDONLY)) < 0)
-	return(0);
-
-    while ((num = read(fd, buffer, sizeof(buffer))) > 0)
-	SHA1Update(&ctx, buffer, num);
-
-    oerrno = errno;
-    close(fd);
-    errno = oerrno;
-    return(num < 0 ? 0 : SHA1End(&ctx, buf));
-}
-
-char *
-SHA1Data (const u_char *data, size_t len, char *buf)
-{
-    SHA1_CTX ctx;
-
-    SHA1Init(&ctx);
-    SHA1Update(&ctx, data, len);
-    return(SHA1End(&ctx, buf));
-}
diff --git a/lib/libc/hash/sha2hl.c b/lib/libc/hash/sha2hl.c
deleted file mode 100644
index dee7f3cfa23..00000000000
--- a/lib/libc/hash/sha2hl.c
+++ /dev/null
@@ -1,177 +0,0 @@
-/* sha2hl.c
- * ----------------------------------------------------------------------------
- * "THE BEER-WARE LICENSE" (Revision 42):
- * <phk@login.dkuug.dk> wrote this file.  As long as you retain this notice you
- * can do whatever you want with this stuff. If we meet some day, and you think
- * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
- * ----------------------------------------------------------------------------
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static const char rcsid[] = "$OpenBSD: sha2hl.c,v 1.2 2003/05/09 16:46:31 millert Exp $";
-#endif /* LIBC_SCCS and not lint */
-
-#include <sys/types.h>
-
-#include <errno.h>
-#include <fcntl.h>
-#include <sha2.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-
-static const char hex[]="0123456789abcdef";
-
-/* ARGSUSED */
-char *
-SHA256_End(SHA256_CTX *ctx, char buf[SHA256_DIGEST_STRING_LENGTH])
-{
-    int i;
-    u_int8_t digest[SHA256_DIGEST_LENGTH];
-
-    if (buf == NULL && (buf = malloc(SHA256_DIGEST_STRING_LENGTH)) == NULL)
-	return(NULL);
-
-    SHA256_Final(digest, ctx);
-    for (i = 0; i < SHA256_DIGEST_LENGTH; i++) {
-	buf[i + i] = hex[digest[i] >> 4];
-	buf[i + i + 1] = hex[digest[i] & 0x0f];
-    }
-    buf[i + i] = '\0';
-    memset(digest, 0, sizeof(digest));
-    return(buf);
-}
-
-char *
-SHA256_File(char *filename, char buf[SHA256_DIGEST_STRING_LENGTH])
-{
-    u_int8_t buffer[BUFSIZ];
-    SHA256_CTX ctx;
-    int fd, num, oerrno;
-
-    SHA256_Init(&ctx);
-
-    if ((fd = open(filename, O_RDONLY)) < 0)
-	return(0);
-
-    while ((num = read(fd, buffer, sizeof(buffer))) > 0)
-	SHA256_Update(&ctx, buffer, num);
-
-    oerrno = errno;
-    close(fd);
-    errno = oerrno;
-    return(num < 0 ? 0 : SHA256_End(&ctx, buf));
-}
-
-char *
-SHA256_Data(const u_int8_t *data, size_t len, char buf[SHA256_DIGEST_STRING_LENGTH])
-{
-    SHA256_CTX ctx;
-
-    SHA256_Init(&ctx);
-    SHA256_Update(&ctx, data, len);
-    return(SHA256_End(&ctx, buf));
-}
-
-/* ARGSUSED */
-char *
-SHA384_End(SHA384_CTX *ctx, char buf[SHA384_DIGEST_STRING_LENGTH])
-{
-    int i;
-    u_int8_t digest[SHA384_DIGEST_LENGTH];
-
-    if (buf == NULL && (buf = malloc(SHA384_DIGEST_STRING_LENGTH)) == NULL)
-	return(NULL);
-
-    SHA384_Final(digest, ctx);
-    for (i = 0; i < SHA384_DIGEST_LENGTH; i++) {
-	buf[i + i] = hex[digest[i] >> 4];
-	buf[i + i + 1] = hex[digest[i] & 0x0f];
-    }
-    buf[i + i] = '\0';
-    memset(digest, 0, sizeof(digest));
-    return(buf);
-}
-
-char *
-SHA384_File(char *filename, char buf[SHA384_DIGEST_STRING_LENGTH])
-{
-    u_int8_t buffer[BUFSIZ];
-    SHA384_CTX ctx;
-    int fd, num, oerrno;
-
-    SHA384_Init(&ctx);
-
-    if ((fd = open(filename, O_RDONLY)) < 0)
-	return(0);
-
-    while ((num = read(fd, buffer, sizeof(buffer))) > 0)
-	SHA384_Update(&ctx, buffer, num);
-
-    oerrno = errno;
-    close(fd);
-    errno = oerrno;
-    return(num < 0 ? 0 : SHA384_End(&ctx, buf));
-}
-
-char *
-SHA384_Data(const u_int8_t *data, size_t len, char buf[SHA384_DIGEST_STRING_LENGTH])
-{
-    SHA384_CTX ctx;
-
-    SHA384_Init(&ctx);
-    SHA384_Update(&ctx, data, len);
-    return(SHA384_End(&ctx, buf));
-}
-
-/* ARGSUSED */
-char *
-SHA512_End(SHA512_CTX *ctx, char buf[SHA512_DIGEST_STRING_LENGTH])
-{
-    int i;
-    u_int8_t digest[SHA512_DIGEST_LENGTH];
-
-    if (buf == NULL && (buf = malloc(SHA512_DIGEST_STRING_LENGTH)) == NULL)
-	return(NULL);
-
-    SHA512_Final(digest, ctx);
-    for (i = 0; i < SHA512_DIGEST_LENGTH; i++) {
-	buf[i + i] = hex[digest[i] >> 4];
-	buf[i + i + 1] = hex[digest[i] & 0x0f];
-    }
-    buf[i + i] = '\0';
-    memset(digest, 0, sizeof(digest));
-    return(buf);
-}
-
-char *
-SHA512_File(char *filename, char buf[SHA512_DIGEST_STRING_LENGTH])
-{
-    u_int8_t buffer[BUFSIZ];
-    SHA512_CTX ctx;
-    int fd, num, oerrno;
-
-    SHA512_Init(&ctx);
-
-    if ((fd = open(filename, O_RDONLY)) < 0)
-	return(0);
-
-    while ((num = read(fd, buffer, sizeof(buffer))) > 0)
-	SHA512_Update(&ctx, buffer, num);
-
-    oerrno = errno;
-    close(fd);
-    errno = oerrno;
-    return(num < 0 ? 0 : SHA512_End(&ctx, buf));
-}
-
-char *
-SHA512_Data(const u_int8_t *data, size_t len, char buf[SHA512_DIGEST_STRING_LENGTH])
-{
-    SHA512_CTX ctx;
-
-    SHA512_Init(&ctx);
-    SHA512_Update(&ctx, data, len);
-    return(SHA512_End(&ctx, buf));
-}