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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/fs/isofs/dir.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/fs/isofs/dir.c')
-rw-r--r--ANDROID_3.4.5/fs/isofs/dir.c285
1 files changed, 0 insertions, 285 deletions
diff --git a/ANDROID_3.4.5/fs/isofs/dir.c b/ANDROID_3.4.5/fs/isofs/dir.c
deleted file mode 100644
index f20437c0..00000000
--- a/ANDROID_3.4.5/fs/isofs/dir.c
+++ /dev/null
@@ -1,285 +0,0 @@
-/*
- * linux/fs/isofs/dir.c
- *
- * (C) 1992, 1993, 1994 Eric Youngdale Modified for ISO 9660 filesystem.
- *
- * (C) 1991 Linus Torvalds - minix filesystem
- *
- * Steve Beynon : Missing last directory entries fixed
- * (stephen@askone.demon.co.uk) : 21st June 1996
- *
- * isofs directory handling functions
- */
-#include <linux/gfp.h>
-#include "isofs.h"
-
-int isofs_name_translate(struct iso_directory_record *de, char *new, struct inode *inode)
-{
- char * old = de->name;
- int len = de->name_len[0];
- int i;
-
- for (i = 0; i < len; i++) {
- unsigned char c = old[i];
- if (!c)
- break;
-
- if (c >= 'A' && c <= 'Z')
- c |= 0x20; /* lower case */
-
- /* Drop trailing '.;1' (ISO 9660:1988 7.5.1 requires period) */
- if (c == '.' && i == len - 3 && old[i + 1] == ';' && old[i + 2] == '1')
- break;
-
- /* Drop trailing ';1' */
- if (c == ';' && i == len - 2 && old[i + 1] == '1')
- break;
-
- /* Convert remaining ';' to '.' */
- /* Also '/' to '.' (broken Acorn-generated ISO9660 images) */
- if (c == ';' || c == '/')
- c = '.';
-
- new[i] = c;
- }
- return i;
-}
-
-/* Acorn extensions written by Matthew Wilcox <willy@bofh.ai> 1998 */
-int get_acorn_filename(struct iso_directory_record *de,
- char *retname, struct inode *inode)
-{
- int std;
- unsigned char *chr;
- int retnamlen = isofs_name_translate(de, retname, inode);
-
- if (retnamlen == 0)
- return 0;
- std = sizeof(struct iso_directory_record) + de->name_len[0];
- if (std & 1)
- std++;
- if ((*((unsigned char *) de) - std) != 32)
- return retnamlen;
- chr = ((unsigned char *) de) + std;
- if (strncmp(chr, "ARCHIMEDES", 10))
- return retnamlen;
- if ((*retname == '_') && ((chr[19] & 1) == 1))
- *retname = '!';
- if (((de->flags[0] & 2) == 0) && (chr[13] == 0xff)
- && ((chr[12] & 0xf0) == 0xf0)) {
- retname[retnamlen] = ',';
- sprintf(retname+retnamlen+1, "%3.3x",
- ((chr[12] & 0xf) << 8) | chr[11]);
- retnamlen += 4;
- }
- return retnamlen;
-}
-
-/*
- * This should _really_ be cleaned up some day..
- */
-static int do_isofs_readdir(struct inode *inode, struct file *filp,
- void *dirent, filldir_t filldir,
- char *tmpname, struct iso_directory_record *tmpde)
-{
- unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
- unsigned char bufbits = ISOFS_BUFFER_BITS(inode);
- unsigned long block, offset, block_saved, offset_saved;
- unsigned long inode_number = 0; /* Quiet GCC */
- struct buffer_head *bh = NULL;
- int len;
- int map;
- int first_de = 1;
- char *p = NULL; /* Quiet GCC */
- struct iso_directory_record *de;
- struct isofs_sb_info *sbi = ISOFS_SB(inode->i_sb);
-
- offset = filp->f_pos & (bufsize - 1);
- block = filp->f_pos >> bufbits;
-
- while (filp->f_pos < inode->i_size) {
- int de_len;
-
- if (!bh) {
- bh = isofs_bread(inode, block);
- if (!bh)
- return 0;
- }
-
- de = (struct iso_directory_record *) (bh->b_data + offset);
-
- de_len = *(unsigned char *) de;
-
- /*
- * If the length byte is zero, we should move on to the next
- * CDROM sector. If we are at the end of the directory, we
- * kick out of the while loop.
- */
-
- if (de_len == 0) {
- brelse(bh);
- bh = NULL;
- filp->f_pos = (filp->f_pos + ISOFS_BLOCK_SIZE) & ~(ISOFS_BLOCK_SIZE - 1);
- block = filp->f_pos >> bufbits;
- offset = 0;
- continue;
- }
-
- block_saved = block;
- offset_saved = offset;
- offset += de_len;
-
- /* Make sure we have a full directory entry */
- if (offset >= bufsize) {
- int slop = bufsize - offset + de_len;
- memcpy(tmpde, de, slop);
- offset &= bufsize - 1;
- block++;
- brelse(bh);
- bh = NULL;
- if (offset) {
- bh = isofs_bread(inode, block);
- if (!bh)
- return 0;
- memcpy((void *) tmpde + slop, bh->b_data, offset);
- }
- de = tmpde;
- }
- /* Basic sanity check, whether name doesn't exceed dir entry */
- if (de_len < de->name_len[0] +
- sizeof(struct iso_directory_record)) {
- printk(KERN_NOTICE "iso9660: Corrupted directory entry"
- " in block %lu of inode %lu\n", block,
- inode->i_ino);
- return -EIO;
- }
-
- if (first_de) {
- isofs_normalize_block_and_offset(de,
- &block_saved,
- &offset_saved);
- inode_number = isofs_get_ino(block_saved,
- offset_saved, bufbits);
- }
-
- if (de->flags[-sbi->s_high_sierra] & 0x80) {
- first_de = 0;
- filp->f_pos += de_len;
- continue;
- }
- first_de = 1;
-
- /* Handle the case of the '.' directory */
- if (de->name_len[0] == 1 && de->name[0] == 0) {
- if (filldir(dirent, ".", 1, filp->f_pos, inode->i_ino, DT_DIR) < 0)
- break;
- filp->f_pos += de_len;
- continue;
- }
-
- len = 0;
-
- /* Handle the case of the '..' directory */
- if (de->name_len[0] == 1 && de->name[0] == 1) {
- inode_number = parent_ino(filp->f_path.dentry);
- if (filldir(dirent, "..", 2, filp->f_pos, inode_number, DT_DIR) < 0)
- break;
- filp->f_pos += de_len;
- continue;
- }
-
- /* Handle everything else. Do name translation if there
- is no Rock Ridge NM field. */
-
- /*
- * Do not report hidden files if so instructed, or associated
- * files unless instructed to do so
- */
- if ((sbi->s_hide && (de->flags[-sbi->s_high_sierra] & 1)) ||
- (!sbi->s_showassoc &&
- (de->flags[-sbi->s_high_sierra] & 4))) {
- filp->f_pos += de_len;
- continue;
- }
-
- map = 1;
- if (sbi->s_rock) {
- len = get_rock_ridge_filename(de, tmpname, inode);
- if (len != 0) { /* may be -1 */
- p = tmpname;
- map = 0;
- }
- }
- if (map) {
-#ifdef CONFIG_JOLIET
- if (sbi->s_joliet_level) {
- len = get_joliet_filename(de, tmpname, inode);
- p = tmpname;
- } else
-#endif
- if (sbi->s_mapping == 'a') {
- len = get_acorn_filename(de, tmpname, inode);
- p = tmpname;
- } else
- if (sbi->s_mapping == 'n') {
- len = isofs_name_translate(de, tmpname, inode);
- p = tmpname;
- } else {
- p = de->name;
- len = de->name_len[0];
- }
- }
- if (len > 0) {
- if (filldir(dirent, p, len, filp->f_pos, inode_number, DT_UNKNOWN) < 0)
- break;
- }
- filp->f_pos += de_len;
-
- continue;
- }
- if (bh)
- brelse(bh);
- return 0;
-}
-
-/*
- * Handle allocation of temporary space for name translation and
- * handling split directory entries.. The real work is done by
- * "do_isofs_readdir()".
- */
-static int isofs_readdir(struct file *filp,
- void *dirent, filldir_t filldir)
-{
- int result;
- char *tmpname;
- struct iso_directory_record *tmpde;
- struct inode *inode = filp->f_path.dentry->d_inode;
-
- tmpname = (char *)__get_free_page(GFP_KERNEL);
- if (tmpname == NULL)
- return -ENOMEM;
-
- tmpde = (struct iso_directory_record *) (tmpname+1024);
-
- result = do_isofs_readdir(inode, filp, dirent, filldir, tmpname, tmpde);
-
- free_page((unsigned long) tmpname);
- return result;
-}
-
-const struct file_operations isofs_dir_operations =
-{
- .llseek = generic_file_llseek,
- .read = generic_read_dir,
- .readdir = isofs_readdir,
-};
-
-/*
- * directories can handle most operations...
- */
-const struct inode_operations isofs_dir_inode_operations =
-{
- .lookup = isofs_lookup,
-};
-
-