Greg Hartman | 76d05dc | 2016-11-23 15:51:27 -0800 | [diff] [blame] | 1 | /* ----------------------------------------------------------------------- * |
| 2 | * |
| 3 | * Copyright 2010 Gene Cumm |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation, Inc., 53 Temple Place Ste 330, |
| 8 | * Boston MA 02111-1307, USA; either version 2 of the License, or |
| 9 | * (at your option) any later version; incorporated herein by reference. |
| 10 | * |
| 11 | * ----------------------------------------------------------------------- */ |
| 12 | |
| 13 | /* |
| 14 | * mk-lba-img.c |
| 15 | * |
| 16 | * Makes an image that contains the LBA in every *word of every sector |
| 17 | */ |
| 18 | |
| 19 | #include <stdio.h> |
| 20 | #include <stdlib.h> |
| 21 | #include <errno.h> |
| 22 | #include <string.h> |
| 23 | #include <unistd.h> |
| 24 | |
| 25 | #define NUM_SECT (256*63+1) |
| 26 | #define BPS (512) |
| 27 | #define SECT_INT (BPS / sizeof(unsigned int)) |
| 28 | |
| 29 | typedef unsigned char uint8_t; |
| 30 | typedef unsigned int uint32_t; |
| 31 | |
| 32 | const char DEF_FN[] = "-"; |
| 33 | |
| 34 | int main(int argc, char *argv[]) |
| 35 | { |
| 36 | int i, rv = 0, one = 0; |
| 37 | unsigned int lba, b[SECT_INT]; |
| 38 | int len; |
| 39 | FILE *f; |
| 40 | uint8_t tt = 0; |
| 41 | const char *fn; |
| 42 | |
| 43 | if (argc >= 2) { |
| 44 | if (argc >= 3) { |
| 45 | if (strcasecmp("-1", argv[1]) == 0) { |
| 46 | fn = argv[2]; |
| 47 | one = 1; |
| 48 | } else { |
| 49 | fn = argv[1]; |
| 50 | } |
| 51 | } else { |
| 52 | fn = argv[1]; |
| 53 | } |
| 54 | } else { |
| 55 | fn = DEF_FN; |
| 56 | } |
| 57 | |
| 58 | if (!strcmp(fn, "-")) |
| 59 | f = stdout; |
| 60 | else |
| 61 | f = fopen(fn, "w"); |
| 62 | |
| 63 | if (!f) { |
| 64 | fprintf(stderr, "%s: %s: unable to open for writing: %s\n", |
| 65 | argv[0], fn, strerror(errno)); |
| 66 | return 1; |
| 67 | } |
| 68 | |
| 69 | lba = 0; |
| 70 | while ((len = fread(b, 1, BPS, stdin))) { |
| 71 | if (len < BPS) |
| 72 | memset((char *)b + len, 0, BPS - len); |
| 73 | fwrite(b, 1, BPS, f); |
| 74 | lba++; |
| 75 | } |
| 76 | |
| 77 | memset(b, 0, sizeof b); |
| 78 | |
| 79 | while (lba < NUM_SECT) { |
| 80 | if (one) { |
| 81 | b[0] = lba; |
| 82 | } else { |
| 83 | for (i = 0; i < SECT_INT; i++) |
| 84 | b[i] = lba; |
| 85 | } |
| 86 | fwrite(b, 1, BPS, f); |
| 87 | lba++; |
| 88 | } |
| 89 | |
| 90 | if (f != stdout) |
| 91 | fclose(f); |
| 92 | |
| 93 | return rv; |
| 94 | } |