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/******************************************************************************
*******************************************************************************
**
** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
** Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
**
** This copyrighted material is made available to anyone wishing to use,
** modify, copy, or redistribute it subject to the terms and conditions
** of the GNU General Public License v.2.
**
*******************************************************************************
******************************************************************************/
#include <inttypes.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
#include "fsck_incore.h"
#include "inode_hash.h"
#include "link.h"
int set_link_count(struct fsck_sb *sbp, uint64_t inode_no, uint32_t count)
{
struct inode_info *ii = NULL;
log_debug("Setting link count to %u for %"PRIu64"\n", count, inode_no);
/* If the list has entries, look for one that matches
* inode_no */
ii = inode_hash_search(sbp->inode_hash, inode_no);
if(ii) {
if(ii->link_count) {
log_err("Link count already set for inode #%"
PRIu64"!\n");
stack;
return -1;
}
else {
ii->link_count = count;
}
}
else {
/* If not match was found, add a new entry and set it's
* link count to count*/
if(!(ii = (struct inode_info *) malloc(sizeof(*ii)))) {
log_err("Unable to allocate inode_info structure\n");
stack;
return -1;
}
memset(ii, 0, sizeof(*ii));
ii->inode = inode_no;
ii->link_count = count;
inode_hash_insert(sbp->inode_hash, inode_no, ii);
}
return 0;
}
int increment_link(struct fsck_sb *sbp, uint64_t inode_no)
{
struct inode_info *ii = NULL;
ii = inode_hash_search(sbp->inode_hash, inode_no);
/* If the list has entries, look for one that matches
* inode_no */
if(ii) {
ii->counted_links++;
log_debug("Incremented counted links to %u for %"PRIu64"\n",
ii->counted_links, inode_no);
return 0;
}
log_debug("No match found when incrementing link for %"PRIu64"!\n",
inode_no);
/* If no match was found, add a new entry and set its
* counted links to 1 */
if(!(ii = (struct inode_info *) malloc(sizeof(*ii)))) {
log_err("Unable to allocate inode_info structure\n");
stack;
return -1;
}
if(!memset(ii, 0, sizeof(*ii))) {
log_err("Unable to zero inode_info structure\n");
stack;
return -1;
}
ii->inode = inode_no;
ii->counted_links = 1;
inode_hash_insert(sbp->inode_hash, inode_no, ii);
return 0;
}
int decrement_link(struct fsck_sb *sbp, uint64_t inode_no)
{
struct inode_info *ii = NULL;
ii = inode_hash_search(sbp->inode_hash, inode_no);
/* If the list has entries, look for one that matches
* inode_no */
log_err("Decrementing %"PRIu64"\n", inode_no);
if(ii) {
ii->counted_links--;
return 0;
}
log_debug("No match found when decrementing link for %"PRIu64"!\n",
inode_no);
return -1;
}

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