diff options
Diffstat (limited to 'src/hash.c')
-rw-r--r-- | src/hash.c | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/src/hash.c b/src/hash.c deleted file mode 100644 index 9090bad..0000000 --- a/src/hash.c +++ /dev/null @@ -1,82 +0,0 @@ -/* - * 0xFFFF - Open Free Fiasco Firmware Flasher - * Copyright (C) 2007-2009 pancake <pancake@youterm.com> - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include <stdio.h> -#include <string.h> -#include "hash.h" - -usho do_hash(usho *b, int len) -{ - usho result = 0; - for(len>>=1;len--;b=b+1) - result^=b[0]; - return result; -} - -usho do_hash_file(const char *filename, const char *type) -{ - unsigned char buf[BSIZE]; - FILE *fd = fopen(filename, "r"); - usho hash = 0; - int align = 0; - int size; - int ret; - - if (fd == NULL) { - fprintf(stderr, "ERROR: File '%s' not found.\n", filename); - return -1; - } - - do { - ret = fread(&buf, 1, BSIZE, fd); - if (ret == -1) - return 0; - hash ^= do_hash((usho *)&buf, ret); - } while(ret); - - size = ftell(fd); - fclose(fd); - - /* mmc and kernel image must be aligned */ - if (type) { - if (strcmp(type, "mmc") == 0) - align = ((size >> 8) + 1) << 8; - else if (strcmp(type, "kernel") == 0) - align = ((size >> 7) + 1) << 7; - } - - if (align) { - printf("align from %d to %d\n", size, align); - buf[0] = 0xff; - while (size < align) { - hash ^= do_hash((usho *)&buf, 1); - ++size; - } - } - - return hash; -} - -#if 0 -main() -{ - usho us = do_hash_file("zImage"); - unsigned char *h= (unsigned char *)&us; - printf("%x %x\n",h[0],h[1]); -} -#endif |