From 66c32905a8e5a3e70909fe6dbcfedb4498e10f03 Mon Sep 17 00:00:00 2001 From: Thorsten Glaser Date: Sat, 20 Nov 2010 19:19:21 +0000 Subject: new GRUB2 installation script, derived from MirBSD bootblocks Signed-off-by: Thorsten Glaser --- tools/adk/pt.c | 243 --------------------------------------------------------- 1 file changed, 243 deletions(-) delete mode 100644 tools/adk/pt.c (limited to 'tools/adk/pt.c') diff --git a/tools/adk/pt.c b/tools/adk/pt.c deleted file mode 100644 index 6f2e7ce25..000000000 --- a/tools/adk/pt.c +++ /dev/null @@ -1,243 +0,0 @@ -/* - * pt - partition table utility - * Copyright (C) 2010 by Waldemar Brodkorb - * - * just adds some required code to ptgen - partition table generator - * Copyright (C) 2006 by Felix Fietkau - * - * uses parts of afdisk - * Copyright (C) 2002 by David Roetzel - * - * 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 2 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, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#if defined(__linux__) -#include -#endif - -#if defined(__APPLE__) -#include -#define BLKGETSIZE DKIOCGETBLOCKCOUNT -#endif - -/* Partition table entry */ -struct pte { - unsigned char active; - unsigned char chs_start[3]; - unsigned char type; - unsigned char chs_end[3]; - unsigned int start; - unsigned int length; -}; - -struct partinfo { - unsigned long size; - int type; -}; - -int verbose = 0; -int active = 1; -int heads = -1; -int sectors = -1; -struct partinfo parts[4]; -char *filename = NULL; - -/* - * get the sector size of the block device - * - * print the sector size - */ - -static void getmaxsize(char *device) { - int fd; - unsigned long maxsectors=0; - - fd = open(device, O_RDONLY); - ioctl(fd, BLKGETSIZE, &maxsectors); - printf("%lu\n", maxsectors); - close(fd); -} - -/* - * parse the size argument, which is either - * a simple number (K assumed) or - * K, M or G - * - * returns the size in KByte - */ -static long to_kbytes(const char *string) { - int exp = 0; - long result; - char *end; - - result = strtoul(string, &end, 0); - switch (tolower(*end)) { - case 'k' : - case '\0' : exp = 0; break; - case 'm' : exp = 1; break; - case 'g' : exp = 2; break; - default: return 0; - } - - if (*end) - end++; - - if (*end) { - fprintf(stderr, "garbage after end of number\n"); - return 0; - } - - /* result: number + 1024^(exp) */ - return result * ((2 << ((10 * exp) - 1)) ?: 1); -} - -/* convert the sector number into a CHS value for the partition table */ -static void to_chs(long sect, unsigned char chs[3]) { - int c,h,s; - - s = (sect % sectors) + 1; - sect = sect / sectors; - h = sect % heads; - sect = sect / heads; - c = sect; - - chs[0] = h; - chs[1] = s | ((c >> 2) & 0xC0); - chs[2] = c & 0xFF; - - return; -} - -/* round the sector number up to the next cylinder */ -static inline unsigned long round_to_cyl(long sect) { - int cyl_size = heads * sectors; - - return sect + cyl_size - (sect % cyl_size); -} - -/* check the partition sizes and write the partition table */ -static int gen_ptable(int nr) -{ - struct pte pte[4]; - unsigned long sect = 0; - unsigned int start, len; - int i, fd, ret = -1; - - memset(pte, 0, sizeof(struct pte) * 4); - for (i = 0; i < nr; i++) { - if (!parts[i].size) { - fprintf(stderr, "Invalid size in partition %d!\n", i); - return -1; - } - pte[i].active = ((i + 1) == active) ? 0x80 : 0; - pte[i].type = parts[i].type; - pte[i].start = start = sect + sectors; - sect = round_to_cyl(start + parts[i].size * 2); - pte[i].length = len = sect - start; - to_chs(start, pte[i].chs_start); - to_chs(start + len - 1, pte[i].chs_end); - if (verbose) - fprintf(stderr, "Partition %d: start=%u, end=%u, size=%u\n", i, start * 512, (start + len) * 512, len * 512); - } - - if ((fd = open(filename, O_WRONLY|O_CREAT|O_TRUNC, 0644)) < 0) { - fprintf(stderr, "Can't open output file '%s'\n",filename); - return -1; - } - - lseek(fd, 446, SEEK_SET); - if (write(fd, pte, sizeof(struct pte) * 4) != sizeof(struct pte) * 4) { - fprintf(stderr, "write failed.\n"); - goto fail; - } - lseek(fd, 510, SEEK_SET); - if (write(fd, "\x55\xaa", 2) != 2) { - fprintf(stderr, "write failed.\n"); - goto fail; - } - - ret = 0; -fail: - close(fd); - return ret; -} - -static void usage(char *prog) -{ - fprintf(stderr, "Usage: %s [-v] -h -s -o [-a 0..4] [[-t ] -p ...] \n", prog); - fprintf(stderr, "Usage: %s -g \n", prog); - exit(1); -} - -int main (int argc, char **argv) -{ - char type = 0x83; - int ch; - int part = 0; - - while ((ch = getopt(argc, argv, "h:s:p:a:t:o:vg:")) != -1) { - switch (ch) { - case 'o': - filename = optarg; - break; - case 'v': - verbose++; - break; - case 'h': - heads = (int) strtoul(optarg, NULL, 0); - break; - case 's': - sectors = (int) strtoul(optarg, NULL, 0); - break; - case 'p': - if (part > 3) { - fprintf(stderr, "Too many partitions\n"); - exit(1); - } - parts[part].size = to_kbytes(optarg); - parts[part++].type = type; - break; - case 't': - type = (char) strtoul(optarg, NULL, 16); - break; - case 'a': - active = (int) strtoul(optarg, NULL, 0); - if ((active < 0) || (active > 4)) - active = 0; - break; - case 'g': - getmaxsize(optarg); - exit(0); - case '?': - default: - usage(argv[0]); - } - } - argc -= optind; - if (argc || (heads <= 0) || (sectors <= 0) || !filename) - usage(argv[0]); - - return gen_ptable(part); -} -- cgit v1.2.3