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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/fs/isofs/dir.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
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.c | 285 |
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, -}; - - |