added hmac functions

qse/include/qse/cry/Makefile.am

@@ -2,6 +2,7 @@ pkgincludedir = $(includedir)/qse/cry
 
 pkginclude_HEADERS = \
 	blowfish.h \
+	hmac.h \
 	kseed.h \
 	md5.h \
 	sha1.h \

qse/include/qse/cry/Makefile.in

@@ -341,6 +341,7 @@ top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
 pkginclude_HEADERS = \
 	blowfish.h \
+	hmac.h \
 	kseed.h \
 	md5.h \
 	sha1.h \

qse/include/qse/cry/md5.h

@@ -30,13 +30,14 @@
 #include <qse/types.h>
 #include <qse/macros.h>
 
-#define QSE_MD5_DIGEST_LEN 16
+#define QSE_MD5_DIGEST_LEN (16)
+#define QSE_MD5_BLOCK_LEN  (64)
 
 struct qse_md5_t
 {
 	qse_uint32_t  count[2];
 	qse_uint32_t  state[4];
-	qse_uint8_t   buffer[64];
+	qse_uint8_t   buffer[QSE_MD5_BLOCK_LEN];
 };
 typedef struct qse_md5_t qse_md5_t;
 

qse/include/qse/cry/sha1.h

@@ -28,16 +28,17 @@
 #ifndef _QSE_CRY_SHA1_H_
 #define _QSE_CRY_SHA1_H_
 
-#define QSE_SHA1_DIGEST_LEN 20
-
 #include <qse/types.h>
 #include <qse/macros.h>
 
+#define QSE_SHA1_DIGEST_LEN (20)
+#define QSE_SHA1_BLOCK_LEN  (64)
+
 struct qse_sha1_t 
 {
 	qse_uint32_t state[5];
 	qse_uint32_t count[2];
-	qse_uint8_t  buffer[64];
+	qse_uint8_t  buffer[QSE_SHA1_BLOCK_LEN];
 };
 typedef struct qse_sha1_t qse_sha1_t;
 

qse/include/qse/cry/sha2.h

@@ -66,22 +66,18 @@
 #include <qse/types.h>
 #include <qse/macros.h>
 
-/*** SHA-256/384/512 Various Length Definitions ***********************/
+#define QSE_SHA256_BLOCK_LEN   (64)
-#define QSE_SHA256_BLOCK_LEN		(64)
+#define QSE_SHA256_DIGEST_LEN  (32)
-#define QSE_SHA256_DIGEST_LEN		(32)
+#define QSE_SHA384_BLOCK_LEN   (128)
-#define QSE_SHA384_BLOCK_LEN		(128)
+#define QSE_SHA384_DIGEST_LEN  (48)
-#define QSE_SHA384_DIGEST_LEN		(48)
+#define QSE_SHA512_BLOCK_LEN   (128)
-#define QSE_SHA512_BLOCK_LEN		(128)
+#define QSE_SHA512_DIGEST_LEN  (64)
-#define QSE_SHA512_DIGEST_LEN		(64)
-
-
-/*** SHA-256/384/512 Context Structures *******************************/
 
 struct qse_sha256_t 
 {
-	qse_uint32_t state[8];
+	qse_uint32_t  state[8];
 	qse_uint64_t  bitcount;
-	qse_uint8_t  buffer[QSE_SHA256_BLOCK_LEN];
+	qse_uint8_t   buffer[QSE_SHA256_BLOCK_LEN];
 };
 typedef struct qse_sha256_t qse_sha256_t;
 

qse/lib/cry/Makefile.am

@@ -9,6 +9,7 @@ AM_CPPFLAGS = \
 lib_LTLIBRARIES = libqsecry.la
 libqsecry_la_SOURCES =  \
 	blowfish.c  \
+	hmac.c \
 	kseed.c \
 	md5.c \
 	sha1.c \

qse/lib/cry/Makefile.in

@@ -134,8 +134,8 @@ am__uninstall_files_from_dir = { \
 am__installdirs = "$(DESTDIR)$(libdir)"
 LTLIBRARIES = $(lib_LTLIBRARIES)
 am_libqsecry_la_OBJECTS = libqsecry_la-blowfish.lo \
-	libqsecry_la-kseed.lo libqsecry_la-md5.lo libqsecry_la-sha1.lo \
+	libqsecry_la-hmac.lo libqsecry_la-kseed.lo libqsecry_la-md5.lo \
-	libqsecry_la-sha2.lo
+	libqsecry_la-sha1.lo libqsecry_la-sha2.lo
 libqsecry_la_OBJECTS = $(am_libqsecry_la_OBJECTS)
 AM_V_lt = $(am__v_lt_@AM_V@)
 am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
@@ -160,6 +160,7 @@ DEFAULT_INCLUDES =
 depcomp = $(SHELL) $(top_srcdir)/ac/depcomp
 am__maybe_remake_depfiles = depfiles
 am__depfiles_remade = ./$(DEPDIR)/libqsecry_la-blowfish.Plo \
+	./$(DEPDIR)/libqsecry_la-hmac.Plo \
 	./$(DEPDIR)/libqsecry_la-kseed.Plo \
 	./$(DEPDIR)/libqsecry_la-md5.Plo \
 	./$(DEPDIR)/libqsecry_la-sha1.Plo \
@@ -386,6 +387,7 @@ AM_CPPFLAGS = \
 lib_LTLIBRARIES = libqsecry.la
 libqsecry_la_SOURCES = \
 	blowfish.c  \
+	hmac.c \
 	kseed.c \
 	md5.c \
 	sha1.c \
@@ -474,6 +476,7 @@ distclean-compile:
 	-rm -f *.tab.c
 
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libqsecry_la-blowfish.Plo@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libqsecry_la-hmac.Plo@am__quote@ # am--include-marker
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libqsecry_la-kseed.Plo@am__quote@ # am--include-marker
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libqsecry_la-md5.Plo@am__quote@ # am--include-marker
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libqsecry_la-sha1.Plo@am__quote@ # am--include-marker
@@ -513,6 +516,13 @@ libqsecry_la-blowfish.lo: blowfish.c
 @AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
 @am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(libqsecry_la_CFLAGS) $(CFLAGS) -c -o libqsecry_la-blowfish.lo `test -f 'blowfish.c' || echo '$(srcdir)/'`blowfish.c
 
+libqsecry_la-hmac.lo: hmac.c
+@am__fastdepCC_TRUE@	$(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(libqsecry_la_CFLAGS) $(CFLAGS) -MT libqsecry_la-hmac.lo -MD -MP -MF $(DEPDIR)/libqsecry_la-hmac.Tpo -c -o libqsecry_la-hmac.lo `test -f 'hmac.c' || echo '$(srcdir)/'`hmac.c
+@am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/libqsecry_la-hmac.Tpo $(DEPDIR)/libqsecry_la-hmac.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='hmac.c' object='libqsecry_la-hmac.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(libqsecry_la_CFLAGS) $(CFLAGS) -c -o libqsecry_la-hmac.lo `test -f 'hmac.c' || echo '$(srcdir)/'`hmac.c
+
 libqsecry_la-kseed.lo: kseed.c
 @am__fastdepCC_TRUE@	$(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(libqsecry_la_CFLAGS) $(CFLAGS) -MT libqsecry_la-kseed.lo -MD -MP -MF $(DEPDIR)/libqsecry_la-kseed.Tpo -c -o libqsecry_la-kseed.lo `test -f 'kseed.c' || echo '$(srcdir)/'`kseed.c
 @am__fastdepCC_TRUE@	$(AM_V_at)$(am__mv) $(DEPDIR)/libqsecry_la-kseed.Tpo $(DEPDIR)/libqsecry_la-kseed.Plo
@@ -676,6 +686,7 @@ clean-am: clean-generic clean-libLTLIBRARIES clean-libtool \
 
 distclean: distclean-am
 		-rm -f ./$(DEPDIR)/libqsecry_la-blowfish.Plo
+	-rm -f ./$(DEPDIR)/libqsecry_la-hmac.Plo
 	-rm -f ./$(DEPDIR)/libqsecry_la-kseed.Plo
 	-rm -f ./$(DEPDIR)/libqsecry_la-md5.Plo
 	-rm -f ./$(DEPDIR)/libqsecry_la-sha1.Plo
@@ -726,6 +737,7 @@ installcheck-am:
 
 maintainer-clean: maintainer-clean-am
 		-rm -f ./$(DEPDIR)/libqsecry_la-blowfish.Plo
+	-rm -f ./$(DEPDIR)/libqsecry_la-hmac.Plo
 	-rm -f ./$(DEPDIR)/libqsecry_la-kseed.Plo
 	-rm -f ./$(DEPDIR)/libqsecry_la-md5.Plo
 	-rm -f ./$(DEPDIR)/libqsecry_la-sha1.Plo

qse/samples/cry/bf01.c

@@ -1,3 +1,29 @@
+/*
+ * $Id$
+ *
+    Copyright (c) 2006-2019 Chung, Hyung-Hwan. All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
+    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+    IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
 #include <qse/si/sio.h>
 #include <qse/cry/blowfish.h>
 #include <qse/cry/kseed.h>

qse/samples/cry/sha01.c

@@ -1,6 +1,33 @@
+/*
+ * $Id$
+ *
+    Copyright (c) 2006-2019 Chung, Hyung-Hwan. All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
+    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+    IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
 #include <qse/cry/sha2.h>
 #include <qse/cry/sha1.h>
 #include <qse/cry/md5.h>
+#include <qse/cry/hmac.h>
 #include <qse/cmn/path.h>
 #include <unistd.h>
 #include <fcntl.h>
@@ -11,10 +38,10 @@
 
 #define READ_BUF_SIZE (32768)
 
-static void sha512sum (int fd, unsigned char digest[QSE_SHA512_DIGEST_LEN])
+static qse_size_t sha512sum (int fd, qse_uint8_t* digest, qse_size_t size)
 {
 	qse_sha512_t md;
-	unsigned char buf[READ_BUF_SIZE];
+	qse_uint8_t buf[READ_BUF_SIZE];
 	ssize_t n;
 
 	qse_sha512_initialize (&md);
@@ -24,13 +51,13 @@ static void sha512sum (int fd, unsigned char digest[QSE_SHA512_DIGEST_LEN])
 		if (n <= 0) break;
 		qse_sha512_update (&md, buf, n);
 	}
-	qse_sha512_digest (&md, digest, QSE_SHA512_DIGEST_LEN);
+	return qse_sha512_digest(&md, digest, size);
 }
 
-static void sha384sum (int fd, unsigned char digest[QSE_SHA384_DIGEST_LEN])
+static qse_size_t sha384sum (int fd, qse_uint8_t* digest, qse_size_t size)
 {
 	qse_sha384_t md;
-	unsigned char buf[READ_BUF_SIZE];
+	qse_uint8_t buf[READ_BUF_SIZE];
 	ssize_t n;
 
 	qse_sha384_initialize (&md);
@@ -40,13 +67,13 @@ static void sha384sum (int fd, unsigned char digest[QSE_SHA384_DIGEST_LEN])
 		if (n <= 0) break;
 		qse_sha384_update (&md, buf, n);
 	}
-	qse_sha384_digest (&md, digest, QSE_SHA384_DIGEST_LEN);
+	return qse_sha384_digest(&md, digest, size);
 }
 
-static void sha256sum (int fd, unsigned char digest[QSE_SHA256_DIGEST_LEN])
+static qse_size_t sha256sum (int fd, qse_uint8_t* digest, qse_size_t size)
 {
 	qse_sha256_t md;
-	unsigned char buf[READ_BUF_SIZE];
+	qse_uint8_t buf[READ_BUF_SIZE];
 	ssize_t n;
 
 	qse_sha256_initialize (&md);
@@ -56,13 +83,13 @@ static void sha256sum (int fd, unsigned char digest[QSE_SHA256_DIGEST_LEN])
 		if (n <= 0) break;
 		qse_sha256_update (&md, buf, n);
 	}
-	qse_sha256_digest (&md, digest, QSE_SHA256_DIGEST_LEN);
+	return qse_sha256_digest(&md, digest, size);
 }
 
-static void sha1sum (int fd, unsigned char digest[QSE_SHA1_DIGEST_LEN])
+static qse_size_t sha1sum (int fd, qse_uint8_t* digest, qse_size_t size)
 {
 	qse_sha1_t md;
-	unsigned char buf[READ_BUF_SIZE];
+	qse_uint8_t buf[READ_BUF_SIZE];
 	ssize_t n;
 
 	qse_sha1_initialize (&md);
@@ -72,13 +99,13 @@ static void sha1sum (int fd, unsigned char digest[QSE_SHA1_DIGEST_LEN])
 		if (n <= 0) break;
 		qse_sha1_update (&md, buf, n);
 	}
-	qse_sha1_digest (&md, digest, QSE_SHA1_DIGEST_LEN);
+	return qse_sha1_digest(&md, digest, size);
 }
 
-static void md5sum (int fd, unsigned char digest[QSE_MD5_DIGEST_LEN])
+static qse_size_t md5sum (int fd, qse_uint8_t* digest, qse_size_t size)
 {
 	qse_md5_t md;
-	unsigned char buf[READ_BUF_SIZE];
+	qse_uint8_t buf[READ_BUF_SIZE];
 	ssize_t n;
 
 	qse_md5_initialize (&md);
@@ -88,7 +115,23 @@ static void md5sum (int fd, unsigned char digest[QSE_MD5_DIGEST_LEN])
 		if (n <= 0) break;
 		qse_md5_update (&md, buf, n);
 	}
-	qse_md5_digest (&md, digest, QSE_MD5_DIGEST_LEN);
+	return qse_md5_digest(&md, digest, size);
+}
+
+static qse_size_t hmac (int fd, qse_hmac_sha_type_t sha_type, const qse_uint8_t* key, qse_size_t keylen, qse_uint8_t* digest, qse_size_t size)
+{
+	qse_hmac_t md;
+	qse_uint8_t buf[READ_BUF_SIZE];
+	ssize_t n;
+
+	qse_hmac_initialize (&md, sha_type, key, keylen);
+	while (1)
+	{
+		n = read(fd, buf, sizeof(buf));
+		if (n <= 0) break;
+		qse_hmac_update (&md, buf, n);
+	}
+	return qse_hmac_digest(&md, digest, size);
 }
 
 
@@ -101,20 +144,23 @@ static void print_usage (const char* argv0)
 	fprintf (stderr, "  -2      sha256\n");
 	fprintf (stderr, "  -3      sha384\n");
 	fprintf (stderr, "  -5      sha512\n");
+	fprintf (stderr, "  -k      specify hmac key and enable hmac\n");
 }
 
 int main (int argc, char* argv[])
 {
-	unsigned char digest[QSE_SHA512_DIGEST_LEN];
+	qse_uint8_t digest[QSE_HMAC_MAX_DIGEST_LEN];
-	int digest_len = QSE_SHA512_DIGEST_LEN;
+	qse_size_t digest_len;
-	void (*sha_func) (int fd, unsigned char* digest) = sha512sum;
+	qse_size_t (*sha_func) (int fd, qse_uint8_t* digest, qse_size_t len) = sha512sum;
+	const char* hmac_key = NULL;
+	qse_hmac_sha_type_t hmac_sha_type = QSE_HMAC_SHA512;
 	int i, j;
 
 	while (1)
 	{
 		int c;
 
-		c = getopt(argc, argv, ":hm1235");
+		c = getopt(argc, argv, ":hk:m1235");
 		if (c == -1) break;
 
 		switch (c)
@@ -123,28 +169,32 @@ int main (int argc, char* argv[])
 				print_usage (qse_mbsbasename(argv[0]));
 				return 0;
 
+			case 'k':
+				hmac_key = optarg;
+				break;
+
 			case 'm':
-				digest_len = QSE_MD5_DIGEST_LEN;
+				hmac_sha_type = QSE_HMAC_MD5;
 				sha_func = md5sum;
 				break;
 
 			case '1':
-				digest_len = QSE_SHA1_DIGEST_LEN;
+				hmac_sha_type = QSE_HMAC_SHA1;
 				sha_func = sha1sum;
 				break;
 
 			case '2':
-				digest_len = QSE_SHA256_DIGEST_LEN;
+				hmac_sha_type = QSE_HMAC_SHA256;
 				sha_func = sha256sum;
 				break;
 
 			case '3':
-				digest_len = QSE_SHA384_DIGEST_LEN;
+				hmac_sha_type = QSE_HMAC_SHA384;
 				sha_func = sha384sum;
 				break;
 
 			case '5':
-				digest_len = QSE_SHA512_DIGEST_LEN;
+				hmac_sha_type = QSE_HMAC_SHA512;
 				sha_func = sha512sum;
 				break;
 
@@ -157,35 +207,69 @@ int main (int argc, char* argv[])
 
 
 
-	if (optind >= argc)
+	if (hmac_key)
 	{
-		sha_func (STDIN_FILENO, digest);
+		if (optind >= argc)
-		for (j = 0; j < digest_len; j++)
-			printf ("%02x", digest[j]);
-		printf ("  -\n");
-	}
-	else
-	{
-		int fd;
-
-		for (i = optind; i < argc; i++)
 		{
-			fd = strcmp(argv[i], "-")? open(argv[i], O_RDONLY): STDIN_FILENO;
+			QSE_STATIC_ASSERT (QSE_SIZEOF(digest) >= QSE_HMAC_MAX_DIGEST_LEN);
-			if (fd >= 0)
+			digest_len = hmac(STDIN_FILENO, hmac_sha_type, (const qse_uint8_t*)hmac_key, strlen(hmac_key), digest, QSE_SIZEOF(digest));
+			for (j = 0; j < digest_len; j++)
+				printf ("%02x", digest[j]);
+			printf ("  -\n");
+		}
+		else
+		{
+			int fd;
+
+			for (i = optind; i < argc; i++)
 			{
-				sha_func (fd, digest);
+				fd = strcmp(argv[i], "-")? open(argv[i], O_RDONLY): STDIN_FILENO;
-				for (j = 0; j < digest_len; j++)
+				if (fd >= 0)
-					printf ("%02x", digest[j]);
+				{
-				printf ("  %s\n", argv[i]);
+					digest_len = hmac(fd, hmac_sha_type, (const qse_uint8_t*)hmac_key, strlen(hmac_key), digest, QSE_SIZEOF(digest));
-				if (strcmp(argv[i], "-")) close (fd);
+					for (j = 0; j < digest_len; j++)
-			}
+						printf ("%02x", digest[j]);
-			else
+					printf ("  %s\n", argv[i]);
-			{
+					if (strcmp(argv[i], "-")) close (fd);
-				fprintf (stderr, "%s: %s\n", argv[i], strerror(errno));
+				}
+				else
+				{
+					fprintf (stderr, "%s: %s\n", argv[i], strerror(errno));
+				}
 			}
 		}
 	}
+	else
+	{
+		if (optind >= argc)
+		{
+			digest_len = sha_func(STDIN_FILENO, digest, QSE_SIZEOF(digest));
+			for (j = 0; j < digest_len; j++)
+				printf ("%02x", digest[j]);
+			printf ("  -\n");
+		}
+		else
+		{
+			int fd;
 
+			for (i = optind; i < argc; i++)
+			{
+				fd = strcmp(argv[i], "-")? open(argv[i], O_RDONLY): STDIN_FILENO;
+				if (fd >= 0)
+				{
+					digest_len = sha_func(fd, digest, QSE_SIZEOF(digest));
+					for (j = 0; j < digest_len; j++)
+						printf ("%02x", digest[j]);
+					printf ("  %s\n", argv[i]);
+					if (strcmp(argv[i], "-")) close (fd);
+				}
+				else
+				{
+					fprintf (stderr, "%s: %s\n", argv[i], strerror(errno));
+				}
+			}
+		}
+	}
 	return 0;
 }