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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 17:39:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 17:39:29 +0000
commit8ffec2a3aba6f114784e11f89ef1d57a096ae540 (patch)
treeccebcbad06203e8241a8e7249f8e6c478a3682ea /src/blake2/b2sum.c
parentInitial commit. (diff)
downloadcoreutils-upstream.tar.xz
coreutils-upstream.zip
Adding upstream version 8.32.upstream/8.32upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--src/blake2/b2sum.c396
1 files changed, 396 insertions, 0 deletions
diff --git a/src/blake2/b2sum.c b/src/blake2/b2sum.c
new file mode 100644
index 0000000..9f11081
--- /dev/null
+++ b/src/blake2/b2sum.c
@@ -0,0 +1,396 @@
+/*
+ BLAKE2 reference source code package - b2sum tool
+
+ Copyright 2012, Samuel Neves <sneves@dei.uc.pt>. You may use this under the
+ terms of the CC0, the OpenSSL Licence, or the Apache Public License 2.0, at
+ your option. The terms of these licenses can be found at:
+
+ - CC0 1.0 Universal : https://creativecommons.org/publicdomain/zero/1.0
+ - OpenSSL license : https://www.openssl.org/source/license.html
+ - Apache 2.0 : https://www.apache.org/licenses/LICENSE-2.0
+
+ More information about the BLAKE2 hash function can be found at
+ https://blake2.net.
+*/
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <errno.h>
+
+#include <ctype.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <stdbool.h>
+
+#include "blake2.h"
+
+#if 0
+/* This will help compatibility with coreutils */
+int blake2s_stream( FILE *stream, void *resstream, size_t outbytes )
+{
+ int ret = -1;
+ size_t sum, n;
+ blake2s_state S[1];
+ static const size_t buffer_length = 32768;
+ uint8_t *buffer = ( uint8_t * )malloc( buffer_length );
+
+ if( !buffer ) return -1;
+
+ blake2s_init( S, outbytes );
+
+ while( 1 )
+ {
+ sum = 0;
+
+ while( 1 )
+ {
+ n = fread( buffer + sum, 1, buffer_length - sum, stream );
+ sum += n;
+
+ if( buffer_length == sum )
+ break;
+
+ if( 0 == n )
+ {
+ if( ferror( stream ) )
+ goto cleanup_buffer;
+
+ goto final_process;
+ }
+
+ if( feof( stream ) )
+ goto final_process;
+ }
+
+ blake2s_update( S, buffer, buffer_length );
+ }
+
+final_process:;
+
+ if( sum > 0 ) blake2s_update( S, buffer, sum );
+
+ blake2s_final( S, resstream, outbytes );
+ ret = 0;
+cleanup_buffer:
+ free( buffer );
+ return ret;
+}
+#endif
+
+int blake2b_stream( FILE *stream, void *resstream, size_t outbytes )
+{
+ int ret = -1;
+ size_t sum, n;
+ blake2b_state S[1];
+ static const size_t buffer_length = 32768;
+ uint8_t *buffer = ( uint8_t * )malloc( buffer_length );
+
+ if( !buffer ) return -1;
+
+ blake2b_init( S, outbytes );
+
+ while( 1 )
+ {
+ sum = 0;
+
+ while( 1 )
+ {
+ n = fread( buffer + sum, 1, buffer_length - sum, stream );
+ sum += n;
+
+ if( buffer_length == sum )
+ break;
+
+ if( 0 == n )
+ {
+ if( ferror( stream ) )
+ goto cleanup_buffer;
+
+ goto final_process;
+ }
+
+ if( feof( stream ) )
+ goto final_process;
+ }
+
+ blake2b_update( S, buffer, buffer_length );
+ }
+
+final_process:;
+
+ if( sum > 0 ) blake2b_update( S, buffer, sum );
+
+ blake2b_final( S, resstream, outbytes );
+ ret = 0;
+cleanup_buffer:
+ free( buffer );
+ return ret;
+}
+
+#if 0
+
+int blake2sp_stream( FILE *stream, void *resstream, size_t outbytes )
+{
+ int ret = -1;
+ size_t sum, n;
+ blake2sp_state S[1];
+ static const size_t buffer_length = 16 * ( 1UL << 20 );
+ uint8_t *buffer = ( uint8_t * )malloc( buffer_length );
+
+ if( !buffer ) return -1;
+
+ blake2sp_init( S, outbytes );
+
+ while( 1 )
+ {
+ sum = 0;
+
+ while( 1 )
+ {
+ n = fread( buffer + sum, 1, buffer_length - sum, stream );
+ sum += n;
+
+ if( buffer_length == sum )
+ break;
+
+ if( 0 == n )
+ {
+ if( ferror( stream ) )
+ goto cleanup_buffer;
+
+ goto final_process;
+ }
+
+ if( feof( stream ) )
+ goto final_process;
+ }
+
+ blake2sp_update( S, buffer, buffer_length );
+ }
+
+final_process:;
+
+ if( sum > 0 ) blake2sp_update( S, buffer, sum );
+
+ blake2sp_final( S, resstream, outbytes );
+ ret = 0;
+cleanup_buffer:
+ free( buffer );
+ return ret;
+}
+
+
+int blake2bp_stream( FILE *stream, void *resstream, size_t outbytes )
+{
+ int ret = -1;
+ size_t sum, n;
+ blake2bp_state S[1];
+ static const size_t buffer_length = 16 * ( 1UL << 20 );
+ uint8_t *buffer = ( uint8_t * )malloc( buffer_length );
+
+ if( !buffer ) return -1;
+
+ blake2bp_init( S, outbytes );
+
+ while( 1 )
+ {
+ sum = 0;
+
+ while( 1 )
+ {
+ n = fread( buffer + sum, 1, buffer_length - sum, stream );
+ sum += n;
+
+ if( buffer_length == sum )
+ break;
+
+ if( 0 == n )
+ {
+ if( ferror( stream ) )
+ goto cleanup_buffer;
+
+ goto final_process;
+ }
+
+ if( feof( stream ) )
+ goto final_process;
+ }
+
+ blake2bp_update( S, buffer, buffer_length );
+ }
+
+final_process:;
+
+ if( sum > 0 ) blake2bp_update( S, buffer, sum );
+
+ blake2bp_final( S, resstream, outbytes );
+ ret = 0;
+cleanup_buffer:
+ free( buffer );
+ return ret;
+}
+
+typedef int ( *blake2fn )( FILE *, void *, size_t );
+
+
+static void usage( char **argv, int errcode )
+{
+ FILE *out = errcode ? stderr : stdout;
+ fprintf( out, "Usage: %s [OPTION]... [FILE]...\n", argv[0] );
+ fprintf( out, "\n" );
+ fprintf( out, "With no FILE, or when FILE is -, read standard input.\n" );
+ fprintf( out, "\n" );
+ fprintf( out, " -a <algo> hash algorithm (blake2b is default): \n"
+ " [blake2b|blake2s|blake2bp|blake2sp]\n" );
+ fprintf( out, " -l <length> digest length in bits, must not exceed the maximum for\n"
+ " the selected algorithm and must be a multiple of 8\n" );
+ fprintf( out, " --tag create a BSD-style checksum\n" );
+ fprintf( out, " --help display this help and exit\n" );
+ exit( errcode );
+}
+
+
+int main( int argc, char **argv )
+{
+ blake2fn blake2_stream = blake2b_stream;
+ unsigned long maxbytes = BLAKE2B_OUTBYTES;
+ const char *algorithm = "BLAKE2b";
+ unsigned long outbytes = 0;
+ unsigned char hash[BLAKE2B_OUTBYTES] = {0};
+ bool bsdstyle = false;
+ int c, i;
+ opterr = 1;
+
+ while( 1 )
+ {
+ int option_index = 0;
+ char *end = NULL;
+ unsigned long outbits;
+ static struct option long_options[] = {
+ { "help", no_argument, 0, 0 },
+ { "tag", no_argument, 0, 0 },
+ { NULL, 0, NULL, 0 }
+ };
+
+ c = getopt_long( argc, argv, "a:l:", long_options, &option_index );
+ if( c == -1 ) break;
+ switch( c )
+ {
+ case 'a':
+ if( 0 == strcmp( optarg, "blake2b" ) )
+ {
+ blake2_stream = blake2b_stream;
+ maxbytes = BLAKE2B_OUTBYTES;
+ algorithm = "BLAKE2b";
+ }
+ else if ( 0 == strcmp( optarg, "blake2s" ) )
+ {
+ blake2_stream = blake2s_stream;
+ maxbytes = BLAKE2S_OUTBYTES;
+ algorithm = "BLAKE2s";
+ }
+ else if ( 0 == strcmp( optarg, "blake2bp" ) )
+ {
+ blake2_stream = blake2bp_stream;
+ maxbytes = BLAKE2B_OUTBYTES;
+ algorithm = "BLAKE2bp";
+ }
+ else if ( 0 == strcmp( optarg, "blake2sp" ) )
+ {
+ blake2_stream = blake2sp_stream;
+ maxbytes = BLAKE2S_OUTBYTES;
+ algorithm = "BLAKE2sp";
+ }
+ else
+ {
+ printf( "Invalid function name: `%s'\n", optarg );
+ usage( argv, 111 );
+ }
+
+ break;
+
+ case 'l':
+ outbits = strtoul(optarg, &end, 10);
+ if( !end || *end != '\0' || outbits % 8 != 0)
+ {
+ printf( "Invalid length argument: `%s'\n", optarg);
+ usage( argv, 111 );
+ }
+ outbytes = outbits / 8;
+ break;
+
+ case 0:
+ if( 0 == strcmp( "help", long_options[option_index].name ) )
+ usage( argv, 0 );
+ else if( 0 == strcmp( "tag", long_options[option_index].name ) )
+ bsdstyle = true;
+ break;
+
+ case '?':
+ usage( argv, 1 );
+ break;
+ }
+ }
+
+ if(outbytes > maxbytes)
+ {
+ printf( "Invalid length argument: %lu\n", outbytes * 8 );
+ printf( "Maximum digest length for %s is %lu\n", algorithm, maxbytes * 8 );
+ usage( argv, 111 );
+ }
+ else if( outbytes == 0 )
+ outbytes = maxbytes;
+
+ if( optind == argc )
+ argv[argc++] = (char *) "-";
+
+ for( i = optind; i < argc; ++i )
+ {
+ FILE *f = NULL;
+ if( argv[i][0] == '-' && argv[i][1] == '\0' )
+ f = stdin;
+ else
+ f = fopen( argv[i], "rb" );
+
+ if( !f )
+ {
+ fprintf( stderr, "Could not open `%s': %s\n", argv[i], strerror( errno ) );
+ continue;
+ }
+
+ if( blake2_stream( f, hash, outbytes ) < 0 )
+ {
+ fprintf( stderr, "Failed to hash `%s'\n", argv[i] );
+ }
+ else
+ {
+ size_t j;
+ if( bsdstyle )
+ {
+ if( outbytes < maxbytes )
+ printf( "%s-%lu (%s) = ", algorithm, outbytes * 8, argv[i] );
+ else
+ printf( "%s (%s) = ", algorithm, argv[i] );
+ }
+
+ for( j = 0; j < outbytes; ++j )
+ printf( "%02x", hash[j] );
+
+ if( bsdstyle )
+ printf( "\n" );
+ else
+ printf( " %s\n", argv[i] );
+ }
+
+ if( f != stdin ) fclose( f );
+ }
+
+ return 0;
+}
+#endif