From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- fs/affs/symlink.c | 78 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 fs/affs/symlink.c (limited to 'fs/affs/symlink.c') diff --git a/fs/affs/symlink.c b/fs/affs/symlink.c new file mode 100644 index 0000000..426f0f0 --- /dev/null +++ b/fs/affs/symlink.c @@ -0,0 +1,78 @@ +/* + * linux/fs/affs/symlink.c + * + * 1995 Hans-Joachim Widmaier - Modified for affs. + * + * Copyright (C) 1991, 1992 Linus Torvalds + * + * affs symlink handling code + */ + +#include "affs.h" + +static int affs_symlink_readpage(struct file *file, struct page *page) +{ + struct buffer_head *bh; + struct inode *inode = page->mapping->host; + char *link = kmap(page); + struct slink_front *lf; + int err; + int i, j; + char c; + char lc; + char *pf; + + pr_debug("AFFS: follow_link(ino=%lu)\n",inode->i_ino); + + err = -EIO; + bh = affs_bread(inode->i_sb, inode->i_ino); + if (!bh) + goto fail; + i = 0; + j = 0; + lf = (struct slink_front *)bh->b_data; + lc = 0; + pf = AFFS_SB(inode->i_sb)->s_prefix ? AFFS_SB(inode->i_sb)->s_prefix : "/"; + + if (strchr(lf->symname,':')) { /* Handle assign or volume name */ + while (i < 1023 && (c = pf[i])) + link[i++] = c; + while (i < 1023 && lf->symname[j] != ':') + link[i++] = lf->symname[j++]; + if (i < 1023) + link[i++] = '/'; + j++; + lc = '/'; + } + while (i < 1023 && (c = lf->symname[j])) { + if (c == '/' && lc == '/' && i < 1020) { /* parent dir */ + link[i++] = '.'; + link[i++] = '.'; + } + link[i++] = c; + lc = c; + j++; + } + link[i] = '\0'; + affs_brelse(bh); + SetPageUptodate(page); + kunmap(page); + unlock_page(page); + return 0; +fail: + SetPageError(page); + kunmap(page); + unlock_page(page); + return err; +} + +struct address_space_operations affs_symlink_aops = { + .readpage = affs_symlink_readpage, +}; + +struct inode_operations affs_symlink_inode_operations = { + .readlink = generic_readlink, + .follow_link = page_follow_link_light, + .put_link = page_put_link, + .setattr = affs_notify_change, +}; -- cgit v1.1