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 24*2f8d396bSPeter Tyser #include "os_support.h" 25566a494fSHeiko Schocher #include <stdio.h> 26566a494fSHeiko Schocher #include <stdlib.h> 27566a494fSHeiko Schocher #include <unistd.h> 28566a494fSHeiko Schocher #include <fcntl.h> 29566a494fSHeiko Schocher #include <errno.h> 30566a494fSHeiko Schocher #include <string.h> 31*2f8d396bSPeter Tyser #ifndef __MINGW32__ 32566a494fSHeiko Schocher #include <sys/mman.h> 33*2f8d396bSPeter Tyser #endif 34566a494fSHeiko Schocher #include <sys/stat.h> 35566a494fSHeiko Schocher #include "sha1.h" 36566a494fSHeiko Schocher 37566a494fSHeiko Schocher #ifndef __ASSEMBLY__ 38566a494fSHeiko Schocher #define __ASSEMBLY__ /* Dirty trick to get only #defines */ 39566a494fSHeiko Schocher #endif 40566a494fSHeiko Schocher #include <config.h> 41566a494fSHeiko Schocher #undef __ASSEMBLY__ 42566a494fSHeiko Schocher 43566a494fSHeiko Schocher #ifndef O_BINARY /* should be define'd on __WIN32__ */ 44566a494fSHeiko Schocher #define O_BINARY 0 45566a494fSHeiko Schocher #endif 46566a494fSHeiko Schocher 47566a494fSHeiko Schocher #ifndef MAP_FAILED 48566a494fSHeiko Schocher #define MAP_FAILED (-1) 49566a494fSHeiko Schocher #endif 50566a494fSHeiko Schocher 51566a494fSHeiko Schocher extern int errno; 52566a494fSHeiko Schocher 53566a494fSHeiko Schocher extern void sha1_csum (unsigned char *input, int ilen, unsigned char output[20]); 54566a494fSHeiko Schocher 55566a494fSHeiko Schocher int main (int argc, char **argv) 56566a494fSHeiko Schocher { 57566a494fSHeiko Schocher unsigned char output[20]; 58566a494fSHeiko Schocher int i, len; 59566a494fSHeiko Schocher 60566a494fSHeiko Schocher char *imagefile; 61566a494fSHeiko Schocher char *cmdname = *argv; 62566a494fSHeiko Schocher unsigned char *ptr; 63566a494fSHeiko Schocher unsigned char *data; 64566a494fSHeiko Schocher struct stat sbuf; 65566a494fSHeiko Schocher unsigned char *ptroff; 66566a494fSHeiko Schocher int ifd; 67566a494fSHeiko Schocher int off; 68566a494fSHeiko Schocher 69566a494fSHeiko Schocher if (argc > 1) { 70566a494fSHeiko Schocher imagefile = argv[1]; 71566a494fSHeiko Schocher ifd = open (imagefile, O_RDWR|O_BINARY); 72566a494fSHeiko Schocher if (ifd < 0) { 73566a494fSHeiko Schocher fprintf (stderr, "%s: Can't open %s: %s\n", 74566a494fSHeiko Schocher cmdname, imagefile, strerror(errno)); 75566a494fSHeiko Schocher exit (EXIT_FAILURE); 76566a494fSHeiko Schocher } 77566a494fSHeiko Schocher if (fstat (ifd, &sbuf) < 0) { 78566a494fSHeiko Schocher fprintf (stderr, "%s: Can't stat %s: %s\n", 79566a494fSHeiko Schocher cmdname, imagefile, strerror(errno)); 80566a494fSHeiko Schocher exit (EXIT_FAILURE); 81566a494fSHeiko Schocher } 82566a494fSHeiko Schocher len = sbuf.st_size; 83566a494fSHeiko Schocher ptr = (unsigned char *)mmap(0, len, 84566a494fSHeiko Schocher PROT_READ, MAP_SHARED, ifd, 0); 85566a494fSHeiko Schocher if (ptr == (unsigned char *)MAP_FAILED) { 86566a494fSHeiko Schocher fprintf (stderr, "%s: Can't read %s: %s\n", 87566a494fSHeiko Schocher cmdname, imagefile, strerror(errno)); 88566a494fSHeiko Schocher exit (EXIT_FAILURE); 89566a494fSHeiko Schocher } 90566a494fSHeiko Schocher 91566a494fSHeiko Schocher /* create a copy, so we can blank out the sha1 sum */ 92566a494fSHeiko Schocher data = malloc (len); 93566a494fSHeiko Schocher memcpy (data, ptr, len); 94566a494fSHeiko Schocher off = SHA1_SUM_POS; 95566a494fSHeiko Schocher ptroff = &data[len + off]; 96566a494fSHeiko Schocher for (i = 0; i < SHA1_SUM_LEN; i++) { 97566a494fSHeiko Schocher ptroff[i] = 0; 98566a494fSHeiko Schocher } 99566a494fSHeiko Schocher 100566a494fSHeiko Schocher sha1_csum ((unsigned char *) data, len, (unsigned char *)output); 101566a494fSHeiko Schocher 102566a494fSHeiko Schocher printf ("U-Boot sum:\n"); 1034ef218f6SWolfgang Denk for (i = 0; i < 20 ; i++) { 104566a494fSHeiko Schocher printf ("%02X ", output[i]); 105566a494fSHeiko Schocher } 106566a494fSHeiko Schocher printf ("\n"); 107566a494fSHeiko Schocher /* overwrite the sum in the bin file, with the actual */ 108566a494fSHeiko Schocher lseek (ifd, SHA1_SUM_POS, SEEK_END); 109566a494fSHeiko Schocher if (write (ifd, output, SHA1_SUM_LEN) != SHA1_SUM_LEN) { 110566a494fSHeiko Schocher fprintf (stderr, "%s: Can't write %s: %s\n", 111566a494fSHeiko Schocher cmdname, imagefile, strerror(errno)); 112566a494fSHeiko Schocher exit (EXIT_FAILURE); 113566a494fSHeiko Schocher } 114566a494fSHeiko Schocher 115566a494fSHeiko Schocher free (data); 116566a494fSHeiko Schocher (void) munmap((void *)ptr, len); 117566a494fSHeiko Schocher (void) close (ifd); 118566a494fSHeiko Schocher } 119566a494fSHeiko Schocher 120566a494fSHeiko Schocher return EXIT_SUCCESS; 121566a494fSHeiko Schocher } 122