mirror of
https://git.FreeBSD.org/src.git
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299 lines
6.2 KiB
C
299 lines
6.2 KiB
C
/*
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* ----------------------------------------------------------------------------
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* "THE BEER-WARE LICENSE" (Revision 42):
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* <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
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* can do whatever you want with this stuff. If we meet some day, and you think
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* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
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* ----------------------------------------------------------------------------
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <ctype.h>
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#include <fcntl.h>
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#include <stdarg.h>
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#include <sys/param.h>
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#include <sys/disklabel.h>
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#ifdef PC98
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#include <sys/diskpc98.h>
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#else
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#include <sys/diskmbr.h>
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#endif
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#include <sys/mount.h>
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#include <sys/stat.h>
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#include <sys/sysctl.h>
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#include <grp.h>
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#include <paths.h>
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#include <pwd.h>
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#include "libdisk.h"
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struct chunk *New_Chunk(void);
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static int
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Fixup_FreeBSD_Names(struct chunk *c)
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{
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struct chunk *c1, *c3;
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uint j;
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if (!strcmp(c->name, "X"))
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return 0;
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/* reset all names to "X" */
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for (c1 = c->part; c1; c1 = c1->next) {
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c1->oname = c1->name;
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c1->name = malloc(12);
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if (!c1->name)
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return -1;
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strcpy(c1->name,"X");
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}
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/* Allocate the first swap-partition we find */
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for (c1 = c->part; c1; c1 = c1->next) {
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if (c1->type == unused)
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continue;
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if (c1->subtype != FS_SWAP)
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continue;
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sprintf(c1->name, "%s%c", c->name, SWAP_PART + 'a');
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break;
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}
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/* Allocate the first root-partition we find */
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for (c1 = c->part; c1; c1 = c1->next) {
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if (c1->type == unused)
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continue;
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if (!(c1->flags & CHUNK_IS_ROOT))
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continue;
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sprintf(c1->name, "%s%c", c->name, 0 + 'a');
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break;
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}
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/* Try to give them the same as they had before */
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for (c1 = c->part; c1; c1 = c1->next) {
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if (strcmp(c1->name, "X"))
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continue;
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for (c3 = c->part; c3 ; c3 = c3->next)
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if (c1 != c3 && !strcmp(c3->name, c1->oname))
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goto newname;
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strcpy(c1->name, c1->oname);
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newname:
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;
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}
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/* Allocate the rest sequentially */
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for (c1 = c->part; c1; c1 = c1->next) {
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const char order[] = "defghab";
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if (c1->type == unused)
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continue;
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if (strcmp("X", c1->name))
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continue;
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for (j = 0; j < strlen(order); j++) {
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sprintf(c1->name, "%s%c", c->name, order[j]);
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for (c3 = c->part; c3 ; c3 = c3->next)
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if (c1 != c3 && !strcmp(c3->name, c1->name))
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goto match;
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break;
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match:
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strcpy(c1->name, "X");
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continue;
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}
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}
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for (c1 = c->part; c1; c1 = c1->next) {
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free(c1->oname);
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c1->oname = 0;
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}
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return 0;
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}
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#ifndef PC98
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static int
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Fixup_Extended_Names(struct chunk *c)
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{
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struct chunk *c1;
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int j = 5;
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for (c1 = c->part; c1; c1 = c1->next) {
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if (c1->type == unused)
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continue;
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free(c1->name);
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c1->name = malloc(12);
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if (!c1->name)
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return -1;
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sprintf(c1->name, "%ss%d", c->disk->chunks->name, j++);
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if (c1->type == freebsd)
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if (Fixup_FreeBSD_Names(c1) != 0)
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return -1;
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}
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return 0;
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}
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#endif
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#ifdef __powerpc__
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static int
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Fixup_Apple_Names(struct chunk *c)
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{
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struct chunk *c1;
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for (c1 = c->part; c1; c1 = c1->next) {
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if (c1->type == unused)
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continue;
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free(c1->name);
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c1->name = strdup(c->name);
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if (!c1->name)
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return (-1);
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}
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return 0;
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}
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#endif
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int
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Fixup_Names(struct disk *d)
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{
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struct chunk *c1, *c2;
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#if defined(__i386__) || defined(__ia64__) || defined(__amd64__)
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struct chunk *c3;
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int j, max;
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#endif
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c1 = d->chunks;
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for (c2 = c1->part; c2 ; c2 = c2->next) {
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if (c2->type == unused)
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continue;
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if (strcmp(c2->name, "X"))
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continue;
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#if defined(__i386__) || defined(__ia64__) || defined(__amd64__)
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c2->oname = malloc(12);
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if (!c2->oname)
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return -1;
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#ifdef __ia64__
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max = d->gpt_size;
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#else
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max = NDOSPART;
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#endif
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for (j = 1; j <= max; j++) {
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#ifdef __ia64__
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sprintf(c2->oname, "%s%c%d", c1->name,
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(c1->type == whole) ? 'p' : 's', j);
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#else
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sprintf(c2->oname, "%ss%d", c1->name, j);
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#endif
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for (c3 = c1->part; c3; c3 = c3->next)
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if (c3 != c2 && !strcmp(c3->name, c2->oname))
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goto match;
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free(c2->name);
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c2->name = c2->oname;
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c2->oname = 0;
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break;
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match:
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continue;
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}
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if (c2->oname)
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free(c2->oname);
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#else
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free(c2->name);
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c2->name = strdup(c1->name);
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#endif /*__i386__*/
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}
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for (c2 = c1->part; c2; c2 = c2->next) {
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if (c2->type == freebsd)
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Fixup_FreeBSD_Names(c2);
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#ifdef __powerpc__
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else if (c2->type == apple)
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Fixup_Apple_Names(c2);
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#endif
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#ifndef PC98
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else if (c2->type == extended)
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Fixup_Extended_Names(c2);
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#endif
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}
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return 0;
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}
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int
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Create_Chunk(struct disk *d, daddr_t offset, daddr_t size, chunk_e type,
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int subtype, u_long flags, const char *sname)
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{
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int i;
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#ifndef __ia64__
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if (!(flags & CHUNK_FORCE_ALL)) {
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daddr_t l;
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#ifdef PC98
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/* Never use the first cylinder */
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if (!offset) {
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offset += (d->bios_sect * d->bios_hd);
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size -= (d->bios_sect * d->bios_hd);
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}
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#else
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/* Never use the first track */
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if (!offset) {
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offset += d->bios_sect;
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size -= d->bios_sect;
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}
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#endif /* PC98 */
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/* Always end on cylinder boundary */
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l = (offset + size) % (d->bios_sect * d->bios_hd);
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size -= l;
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}
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#endif
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i = Add_Chunk(d, offset, size, "X", type, subtype, flags, sname);
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Fixup_Names(d);
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return i;
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}
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struct chunk *
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Create_Chunk_DWIM(struct disk *d, struct chunk *parent, daddr_t size,
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chunk_e type, int subtype, u_long flags)
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{
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int i;
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struct chunk *c1;
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daddr_t offset;
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if (!parent)
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parent = d->chunks;
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if ((parent->type == freebsd && type == part && parent->part == NULL)
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|| (parent->type == apple && type == part && parent->part == NULL)) {
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c1 = New_Chunk();
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if (c1 == NULL)
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return (NULL);
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c1->disk = parent->disk;
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c1->offset = parent->offset;
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c1->size = parent->size;
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c1->end = parent->offset + parent->size - 1;
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c1->type = unused;
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if (parent->sname != NULL)
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c1->sname = strdup(parent->sname);
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c1->name = strdup("-");
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parent->part = c1;
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}
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for (c1 = parent->part; c1; c1 = c1->next) {
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if (c1->type != unused)
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continue;
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if (c1->size < size)
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continue;
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offset = c1->offset;
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goto found;
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}
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return 0;
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found:
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i = Add_Chunk(d, offset, size, "X", type, subtype, flags, "-");
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if (i)
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return 0;
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Fixup_Names(d);
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for (c1 = parent->part; c1; c1 = c1->next)
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if (c1->offset == offset)
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return c1;
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/* barfout(1, "Serious internal trouble"); */
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return 0;
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}
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