1566a494fSHeiko Schocher /* 2566a494fSHeiko Schocher * (C) Copyright 2007 3566a494fSHeiko Schocher * Heiko Schocher, DENX Software Engineering, <hs@denx.de> 4566a494fSHeiko Schocher * 5566a494fSHeiko Schocher * See file CREDITS for list of people who contributed to this 6566a494fSHeiko Schocher * project. 7566a494fSHeiko Schocher * 8566a494fSHeiko Schocher * This program is free software; you can redistribute it and/or 9566a494fSHeiko Schocher * modify it under the terms of the GNU General Public License as 10566a494fSHeiko Schocher * published by the Free Software Foundation; either version 2 of 11566a494fSHeiko Schocher * the License, or (at your option) any later version. 12566a494fSHeiko Schocher * 13566a494fSHeiko Schocher * This program is distributed in the hope that it will be useful, 14566a494fSHeiko Schocher * but WITHOUT ANY WARRANTY; without even the implied warranty of 15566a494fSHeiko Schocher * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16566a494fSHeiko Schocher * GNU General Public License for more details. 17566a494fSHeiko Schocher * 18566a494fSHeiko Schocher * You should have received a copy of the GNU General Public License 19566a494fSHeiko Schocher * along with this program; if not, write to the Free Software 20566a494fSHeiko Schocher * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21566a494fSHeiko Schocher * MA 02111-1307 USA 22566a494fSHeiko Schocher */ 23566a494fSHeiko Schocher 24566a494fSHeiko Schocher #include <stdio.h> 25566a494fSHeiko Schocher #include <stdlib.h> 26566a494fSHeiko Schocher #include <unistd.h> 27566a494fSHeiko Schocher #include <fcntl.h> 28566a494fSHeiko Schocher #include <errno.h> 29566a494fSHeiko Schocher #include <string.h> 30566a494fSHeiko Schocher #include <sys/mman.h> 31566a494fSHeiko Schocher #include <sys/stat.h> 32566a494fSHeiko Schocher #include "sha1.h" 33566a494fSHeiko Schocher 34566a494fSHeiko Schocher #ifndef __ASSEMBLY__ 35566a494fSHeiko Schocher #define __ASSEMBLY__ /* Dirty trick to get only #defines */ 36566a494fSHeiko Schocher #endif 37566a494fSHeiko Schocher #include <config.h> 38566a494fSHeiko Schocher #undef __ASSEMBLY__ 39566a494fSHeiko Schocher 40566a494fSHeiko Schocher #ifndef O_BINARY /* should be define'd on __WIN32__ */ 41566a494fSHeiko Schocher #define O_BINARY 0 42566a494fSHeiko Schocher #endif 43566a494fSHeiko Schocher 44566a494fSHeiko Schocher #ifndef MAP_FAILED 45566a494fSHeiko Schocher #define MAP_FAILED (-1) 46566a494fSHeiko Schocher #endif 47566a494fSHeiko Schocher 48566a494fSHeiko Schocher extern int errno; 49566a494fSHeiko Schocher 50566a494fSHeiko Schocher extern void sha1_csum (unsigned char *input, int ilen, unsigned char output[20]); 51566a494fSHeiko Schocher 52566a494fSHeiko Schocher int main (int argc, char **argv) 53566a494fSHeiko Schocher { 54566a494fSHeiko Schocher unsigned char output[20]; 55566a494fSHeiko Schocher int i, len; 56566a494fSHeiko Schocher 57566a494fSHeiko Schocher char *imagefile; 58566a494fSHeiko Schocher char *cmdname = *argv; 59566a494fSHeiko Schocher unsigned char *ptr; 60566a494fSHeiko Schocher unsigned char *data; 61566a494fSHeiko Schocher struct stat sbuf; 62566a494fSHeiko Schocher unsigned char *ptroff; 63566a494fSHeiko Schocher int ifd; 64566a494fSHeiko Schocher int off; 65566a494fSHeiko Schocher 66566a494fSHeiko Schocher if (argc > 1) { 67566a494fSHeiko Schocher imagefile = argv[1]; 68566a494fSHeiko Schocher ifd = open (imagefile, O_RDWR|O_BINARY); 69566a494fSHeiko Schocher if (ifd < 0) { 70566a494fSHeiko Schocher fprintf (stderr, "%s: Can't open %s: %s\n", 71566a494fSHeiko Schocher cmdname, imagefile, strerror(errno)); 72566a494fSHeiko Schocher exit (EXIT_FAILURE); 73566a494fSHeiko Schocher } 74566a494fSHeiko Schocher if (fstat (ifd, &sbuf) < 0) { 75566a494fSHeiko Schocher fprintf (stderr, "%s: Can't stat %s: %s\n", 76566a494fSHeiko Schocher cmdname, imagefile, strerror(errno)); 77566a494fSHeiko Schocher exit (EXIT_FAILURE); 78566a494fSHeiko Schocher } 79566a494fSHeiko Schocher len = sbuf.st_size; 80566a494fSHeiko Schocher ptr = (unsigned char *)mmap(0, len, 81566a494fSHeiko Schocher PROT_READ, MAP_SHARED, ifd, 0); 82566a494fSHeiko Schocher if (ptr == (unsigned char *)MAP_FAILED) { 83566a494fSHeiko Schocher fprintf (stderr, "%s: Can't read %s: %s\n", 84566a494fSHeiko Schocher cmdname, imagefile, strerror(errno)); 85566a494fSHeiko Schocher exit (EXIT_FAILURE); 86566a494fSHeiko Schocher } 87566a494fSHeiko Schocher 88566a494fSHeiko Schocher /* create a copy, so we can blank out the sha1 sum */ 89566a494fSHeiko Schocher data = malloc (len); 90566a494fSHeiko Schocher memcpy (data, ptr, len); 91566a494fSHeiko Schocher off = SHA1_SUM_POS; 92566a494fSHeiko Schocher ptroff = &data[len + off]; 93566a494fSHeiko Schocher for (i = 0; i < SHA1_SUM_LEN; i++) { 94566a494fSHeiko Schocher ptroff[i] = 0; 95566a494fSHeiko Schocher } 96566a494fSHeiko Schocher 97566a494fSHeiko Schocher sha1_csum ((unsigned char *) data, len, (unsigned char *)output); 98566a494fSHeiko Schocher 99566a494fSHeiko Schocher printf ("U-Boot sum:\n"); 100*4ef218f6SWolfgang Denk for (i = 0; i < 20 ; i++) { 101566a494fSHeiko Schocher printf ("%02X ", output[i]); 102566a494fSHeiko Schocher } 103566a494fSHeiko Schocher printf ("\n"); 104566a494fSHeiko Schocher /* overwrite the sum in the bin file, with the actual */ 105566a494fSHeiko Schocher lseek (ifd, SHA1_SUM_POS, SEEK_END); 106566a494fSHeiko Schocher if (write (ifd, output, SHA1_SUM_LEN) != SHA1_SUM_LEN) { 107566a494fSHeiko Schocher fprintf (stderr, "%s: Can't write %s: %s\n", 108566a494fSHeiko Schocher cmdname, imagefile, strerror(errno)); 109566a494fSHeiko Schocher exit (EXIT_FAILURE); 110566a494fSHeiko Schocher } 111566a494fSHeiko Schocher 112566a494fSHeiko Schocher free (data); 113566a494fSHeiko Schocher (void) munmap((void *)ptr, len); 114566a494fSHeiko Schocher (void) close (ifd); 115566a494fSHeiko Schocher } 116566a494fSHeiko Schocher 117566a494fSHeiko Schocher return EXIT_SUCCESS; 118566a494fSHeiko Schocher } 119