]> wimlib.net Git - wimlib/blobdiff - src/resource.c
to_leXX() -> cpu_to_leXX(), leXX_to_cpu()
[wimlib] / src / resource.c
index dee8bd1554d26864f57777360b3466bf9af4a843..cd098f92ad5e6edd5990aa68971e5351b1007237 100644 (file)
  * wimlib; if not, see http://www.gnu.org/licenses/.
  */
 
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdarg.h>
+
+#ifdef WITH_NTFS_3G
+#include <ntfs-3g/attrib.h>
+#include <ntfs-3g/inode.h>
+#include <ntfs-3g/dir.h>
+#endif
+
 #include "wimlib_internal.h"
 #include "lookup_table.h"
 #include "io.h"
 #include "xpress.h"
 #include "sha1.h"
 #include "dentry.h"
-#include "config.h"
 #include <unistd.h>
 #include <errno.h>
+#ifdef HAVE_ALLOCA_H
 #include <alloca.h>
-
-#ifdef WITH_NTFS_3G
-#include <ntfs-3g/attrib.h>
-#include <ntfs-3g/inode.h>
-#include <ntfs-3g/dir.h>
 #endif
 
+
 /* 
  * Reads all or part of a compressed resource into an in-memory buffer.
  *
@@ -184,11 +191,11 @@ static int read_compressed_resource(FILE *fp, u64 resource_compressed_size,
        if (chunk_entry_size == 4) {
                u32 *entries = (u32*)chunk_tab_buf;
                while (num_needed_chunk_entries--)
-                       *chunk_tab_p++ = to_le32(*entries++);
+                       *chunk_tab_p++ = le32_to_cpu(*entries++);
        } else {
                u64 *entries = (u64*)chunk_tab_buf;
                while (num_needed_chunk_entries--)
-                       *chunk_tab_p++ = to_le64(*entries++);
+                       *chunk_tab_p++ = le64_to_cpu(*entries++);
        }
 
        /* Done with the chunk table now.  We must now seek to the first chunk
@@ -686,11 +693,11 @@ finish_wim_resource_chunk_tab(struct chunk_table *chunk_tab,
        }
 
        if (chunk_tab->bytes_per_chunk_entry == 8) {
-               array_to_le64(chunk_tab->offsets, chunk_tab->num_chunks);
+               array_cpu_to_le64(chunk_tab->offsets, chunk_tab->num_chunks);
        } else {
                for (u64 i = 0; i < chunk_tab->num_chunks; i++)
                        ((u32*)chunk_tab->offsets)[i] =
-                               to_le32(chunk_tab->offsets[i]);
+                               cpu_to_le32(chunk_tab->offsets[i]);
        }
        bytes_written = fwrite((u8*)chunk_tab->offsets +
                                        chunk_tab->bytes_per_chunk_entry,
@@ -854,18 +861,27 @@ static int write_wim_resource(struct lookup_table_entry *lte,
                offset += to_read;
        } while (bytes_remaining);
 
-       /* If writing a compressed resource and not doing a raw copy, write the
-        * chunk table, and finish_wim_resource_chunk_tab() will provide the
-        * compressed size of the resource we wrote.  Otherwise, the compressed
-        * size of the written resource is the same as the compressed size of
-        * the existing resource. */
-       if (out_ctype != WIM_COMPRESSION_TYPE_NONE && !raw) {
-               ret = finish_wim_resource_chunk_tab(chunk_tab, out_fp,
-                                                   &new_compressed_size);
-               if (ret != 0)
-                       goto out_fclose;
-       } else {
+       /* Raw copy:  The new compressed size is the same as the old compressed
+        * size
+        * 
+        * Using WIM_COMPRESSION_TYPE_NONE:  The new compressed size is the
+        * original size
+        *
+        * Using a different compression type:  Call
+        * finish_wim_resource_chunk_tab() and it will provide the new
+        * compressed size.
+        */
+       if (raw) {
                new_compressed_size = old_compressed_size;
+       } else {
+               if (out_ctype == WIM_COMPRESSION_TYPE_NONE)
+                       new_compressed_size = original_size;
+               else {
+                       ret = finish_wim_resource_chunk_tab(chunk_tab, out_fp,
+                                                           &new_compressed_size);
+                       if (ret != 0)
+                               goto out_fclose;
+               }
        }
 
        /* Verify SHA1 message digest of the resource, unless we are doing a raw
@@ -889,8 +905,8 @@ static int write_wim_resource(struct lookup_table_entry *lte,
                }
        }
 
-       if (new_compressed_size >= original_size &&
-           out_ctype != WIM_COMPRESSION_TYPE_NONE && !raw)
+       if (!raw && new_compressed_size >= original_size &&
+           out_ctype != WIM_COMPRESSION_TYPE_NONE)
        {
                /* Oops!  We compressed the resource to larger than the original
                 * size.  Write the resource uncompressed instead. */
@@ -915,7 +931,7 @@ static int write_wim_resource(struct lookup_table_entry *lte,
                }
                goto out_fclose;
        }
-       wimlib_assert(new_compressed_size <= original_size);
+       wimlib_assert(new_compressed_size <= original_size || raw);
        if (out_res_entry) {
                out_res_entry->size          = new_compressed_size;
                out_res_entry->original_size = original_size;
@@ -997,7 +1013,7 @@ int extract_wim_resource_to_fd(const struct lookup_table_entry *lte, int fd,
                if (ret != 0)
                        break;
                sha1_update(&ctx, buf, to_read);
-               if (full_write(fd, buf, to_read) < 0) {
+               if (full_write(fd, buf, to_read) < to_read) {
                        ERROR_WITH_ERRNO("Error extracting WIM resource");
                        return WIMLIB_ERR_WRITE;
                }
@@ -1076,8 +1092,8 @@ int write_dentry_resources(struct dentry *dentry, void *wim_p)
                printf("Writing streams for `%s'\n", dentry->full_path_utf8);
        }
 
-       for (unsigned i = 0; i <= dentry->num_ads; i++) {
-               lte = dentry_stream_lte(dentry, i, w->lookup_table);
+       for (unsigned i = 0; i <= dentry->d_inode->num_ads; i++) {
+               lte = inode_stream_lte(dentry->d_inode, i, w->lookup_table);
                if (lte && ++lte->out_refcnt == 1) {
                        ret = write_wim_resource(lte, w->out_fp, ctype,
                                                 &lte->output_resource_entry);
@@ -1112,10 +1128,11 @@ int read_metadata_resource(WIMStruct *w, struct image_metadata *imd)
        u32 dentry_offset;
        int ret;
        struct dentry *dentry;
-       struct link_group_table *lgt;
+       struct inode_table inode_tab;
        const struct lookup_table_entry *metadata_lte;
        u64 metadata_len;
        u64 metadata_offset;
+       struct hlist_head inode_list;
 
        metadata_lte = imd->metadata_lte;
        metadata_len = wim_resource_size(metadata_lte);
@@ -1187,6 +1204,7 @@ int read_metadata_resource(WIMStruct *w, struct image_metadata *imd)
        dentry->prev   = dentry;
        if (ret != 0)
                goto out_free_dentry_tree;
+       inode_add_dentry(dentry, dentry->d_inode);
 
        /* Now read the entire directory entry tree into memory. */
        DEBUG("Reading dentry tree");
@@ -1202,30 +1220,29 @@ int read_metadata_resource(WIMStruct *w, struct image_metadata *imd)
 
        /* Build hash table that maps hard link group IDs to dentry sets */
        DEBUG("Building link group table");
-       lgt = new_link_group_table(9001);
-       if (!lgt)
-               goto out_free_dentry_tree;
-       ret = for_dentry_in_tree(dentry, link_group_table_insert, lgt);
+       ret = init_inode_table(&inode_tab, 9001);
        if (ret != 0)
-               goto out_free_lgt;
+               goto out_free_dentry_tree;
+
+       for_dentry_in_tree(dentry, inode_table_insert, &inode_tab);
 
-       DEBUG("Fixing inconsistencies in the link groups");
-       ret = fix_link_groups(lgt);
+       DEBUG("Fixing inconsistencies in the hard link groups");
+       ret = fix_inodes(&inode_tab, &inode_list);
+       destroy_inode_table(&inode_tab);
        if (ret != 0)
-               goto out_free_lgt;
+               goto out_free_dentry_tree;
 
        DEBUG("Running miscellaneous verifications on the dentry tree");
+       for_lookup_table_entry(w->lookup_table, lte_zero_real_refcnt, NULL);
        ret = for_dentry_in_tree(dentry, verify_dentry, w);
        if (ret != 0)
-               goto out_free_lgt;
+               goto out_free_dentry_tree;
 
        DEBUG("Done reading image metadata");
 
-       imd->lgt           = lgt;
-       imd->root_dentry   = dentry;
+       imd->root_dentry = dentry;
+       imd->inode_list  = inode_list;
        goto out_free_buf;
-out_free_lgt:
-       free_link_group_table(lgt);
 out_free_dentry_tree:
        free_dentry_tree(dentry, NULL);
 out_free_security_data:
@@ -1317,8 +1334,9 @@ int write_metadata_resource(WIMStruct *w)
        if (ret != 0)
                goto out;
 
-       /* It's very likely the SHA1 message digest of the metadata resource, so
-        * re-insert the lookup table entry into the lookup table. */
+       /* It's very likely the SHA1 message digest of the metadata resource
+        * changed, so re-insert the lookup table entry into the lookup table.
+        * */
        lookup_table_unlink(w->lookup_table, lte);
        lookup_table_insert(w->lookup_table, lte);