mirror of
https://github.com/ipxe/ipxe
synced 2026-01-13 17:43:49 +03:00
7d5dcc9299
The online documentation (e.g. http://ipxe.org/cmd/ifopen), though not yet complete, is far more comprehensive than could be provided within the iPXE binary. Save around 200 bytes (compressed) by removing the command descriptions from the interactive help, and instead referring users directly to the web page describing the relevant command. Signed-off-by: Michael Brown <mcb30@ipxe.org>
122 lines
2.9 KiB
C
122 lines
2.9 KiB
C
/*
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* Copyright (C) 2009 Daniel Verkamp <daniel@drv.nu>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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FILE_LICENCE ( GPL2_OR_LATER );
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <getopt.h>
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#include <ipxe/command.h>
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#include <ipxe/parseopt.h>
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#include <ipxe/image.h>
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#include <ipxe/crypto.h>
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#include <ipxe/md5.h>
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#include <ipxe/sha1.h>
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/** @file
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*
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* Digest commands
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*
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*/
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/** "digest" options */
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struct digest_options {};
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/** "digest" option list */
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static struct option_descriptor digest_opts[] = {};
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/** "digest" command descriptor */
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static struct command_descriptor digest_cmd =
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COMMAND_DESC ( struct digest_options, digest_opts, 1, MAX_ARGUMENTS,
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"<image> [<image>...]" );
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/**
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* The "digest" command
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*
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* @v argc Argument count
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* @v argv Argument list
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* @v digest Digest algorithm
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* @ret rc Return status code
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*/
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static int digest_exec ( int argc, char **argv,
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struct digest_algorithm *digest ) {
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struct digest_options opts;
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struct image *image;
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uint8_t digest_ctx[digest->ctxsize];
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uint8_t digest_out[digest->digestsize];
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uint8_t buf[128];
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size_t offset;
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size_t len;
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size_t frag_len;
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int i;
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unsigned j;
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int rc;
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/* Parse options */
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if ( ( rc = parse_options ( argc, argv, &digest_cmd, &opts ) ) != 0 )
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return rc;
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for ( i = optind ; i < argc ; i++ ) {
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/* find image */
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if ( ( rc = parse_image ( argv[i], &image ) ) != 0 )
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continue;
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offset = 0;
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len = image->len;
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/* calculate digest */
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digest_init ( digest, digest_ctx );
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while ( len ) {
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frag_len = len;
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if ( frag_len > sizeof ( buf ) )
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frag_len = sizeof ( buf );
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copy_from_user ( buf, image->data, offset, frag_len );
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digest_update ( digest, digest_ctx, buf, frag_len );
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len -= frag_len;
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offset += frag_len;
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}
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digest_final ( digest, digest_ctx, digest_out );
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for ( j = 0 ; j < sizeof ( digest_out ) ; j++ )
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printf ( "%02x", digest_out[j] );
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printf ( " %s\n", image->name );
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}
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return 0;
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}
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static int md5sum_exec ( int argc, char **argv ) {
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return digest_exec ( argc, argv, &md5_algorithm );
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}
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static int sha1sum_exec ( int argc, char **argv ) {
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return digest_exec ( argc, argv, &sha1_algorithm );
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}
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struct command md5sum_command __command = {
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.name = "md5sum",
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.exec = md5sum_exec,
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};
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struct command sha1sum_command __command = {
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.name = "sha1sum",
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.exec = sha1sum_exec,
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};
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