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@ -56,6 +56,7 @@ int verbose = 0;
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int active = 1;
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int heads = -1;
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int sectors = -1;
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int kb_align = 0;
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struct partinfo parts[4];
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char *filename = NULL;
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@ -117,6 +118,11 @@ static inline unsigned long round_to_cyl(long sect) {
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return sect + cyl_size - (sect % cyl_size);
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}
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/* round the sector number up to the kb_align boundary */
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static inline unsigned long round_to_kb(long sect) {
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return ((sect - 1) / kb_align + 1) * kb_align;
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}
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/* check the partition sizes and write the partition table */
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static int gen_ptable(int nr)
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{
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@ -132,8 +138,13 @@ static int gen_ptable(int nr)
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}
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pte[i].active = ((i + 1) == active) ? 0x80 : 0;
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pte[i].type = parts[i].type;
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pte[i].start = cpu_to_le16(start = sect + sectors);
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sect = round_to_cyl(start + parts[i].size * 2);
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start = sect + sectors;
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if (kb_align != 0)
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start = round_to_kb(start);
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pte[i].start = cpu_to_le16(start);
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sect = start + parts[i].size * 2;
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if (kb_align == 0)
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sect = round_to_cyl(sect);
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pte[i].length = cpu_to_le16(len = sect - start);
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to_chs(start, pte[i].chs_start);
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to_chs(start + len - 1, pte[i].chs_end);
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@ -167,7 +178,7 @@ fail:
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static void usage(char *prog)
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{
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fprintf(stderr, "Usage: %s [-v] -h <heads> -s <sectors> -o <outputfile> [-a 0..4] [[-t <type>] -p <size>...] \n", prog);
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fprintf(stderr, "Usage: %s [-v] -h <heads> -s <sectors> -o <outputfile> [-a 0..4] [-l <align kB>] [[-t <type>] -p <size>...] \n", prog);
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exit(1);
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}
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@ -177,7 +188,7 @@ int main (int argc, char **argv)
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int ch;
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int part = 0;
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while ((ch = getopt(argc, argv, "h:s:p:a:t:o:v")) != -1) {
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while ((ch = getopt(argc, argv, "h:s:p:a:t:o:vl:")) != -1) {
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switch (ch) {
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case 'o':
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filename = optarg;
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@ -207,6 +218,9 @@ int main (int argc, char **argv)
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if ((active < 0) || (active > 4))
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active = 0;
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break;
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case 'l':
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kb_align = (int) strtoul(optarg, NULL, 0) * 2;
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break;
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case '?':
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default:
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usage(argv[0]);
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