From: Robert Yang <liezhi.yang@windriver.com>
To: <tytso@mit.edu>, <dvhart@linux.intel.com>
Cc: <linux-ext4@vger.kernel.org>
Subject: [PATCH 02/10] misc/create_inode.c: copy files recursively
Date: Mon, 23 Dec 2013 07:09:52 -0500 [thread overview]
Message-ID: <1387800600-13718-3-git-send-email-liezhi.yang@windriver.com> (raw)
In-Reply-To: <1387800600-13718-1-git-send-email-liezhi.yang@windriver.com>
Use opendir() and readdir() to read the native directory, then use
lstat() to identify the file type and call the corresponding function to
add the file to the filesystem, call the populate_fs() recursively if it
is a directory.
NOTE: the libext2fs can't create the socket file.
Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
---
misc/create_inode.c | 90 +++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 90 insertions(+)
diff --git a/misc/create_inode.c b/misc/create_inode.c
index 46aaa60..275d3f0 100644
--- a/misc/create_inode.c
+++ b/misc/create_inode.c
@@ -23,4 +23,94 @@ errcode_t do_write_internal(ext2_ino_t cwd, const char *src, const char *dest)
/* Copy files from source_dir to fs */
errcode_t populate_fs(ext2_ino_t parent_ino, const char *source_dir)
{
+ const char *name;
+ DIR *dh;
+ struct dirent *dent;
+ struct stat st;
+ char ln_target[PATH_MAX];
+ char *func_name = "populate_fs";
+ ext2_ino_t ino;
+ errcode_t retval;
+ int read_cnt;
+
+ root = EXT2_ROOT_INO;
+
+ if (chdir(source_dir) < 0) {
+ com_err(func_name, errno,
+ _("while changing working directory to \"%s\""), source_dir);
+ return errno;
+ }
+
+ if (!(dh = opendir("."))) {
+ com_err(func_name, errno,
+ _("while openning directory \"%s\""), source_dir);
+ return errno;
+ }
+
+ while((dent = readdir(dh))) {
+ if((!strcmp(dent->d_name, ".")) || (!strcmp(dent->d_name, "..")))
+ continue;
+ lstat(dent->d_name, &st);
+ name = dent->d_name;
+
+ switch(st.st_mode & S_IFMT) {
+ case S_IFCHR:
+ case S_IFBLK:
+ case S_IFIFO:
+ if ((retval = do_mknod_internal(parent_ino, name, &st))) {
+ com_err(func_name, retval,
+ _("while creating special file \"%s\""), name);
+ return retval;
+ }
+ break;
+ case S_IFSOCK:
+ /* FIXME: there is no make sockect function atm. */
+ com_err(func_name, 0,
+ _("ignoring sockect file\"%s\""), name);
+ break;
+ case S_IFLNK:
+ if((read_cnt = readlink(name, ln_target, sizeof(ln_target))) == -1) {
+ com_err(func_name, errno,
+ _("while trying to readlink \"%s\""), name);
+ return errno;
+ }
+ ln_target[read_cnt] = '\0';
+ if ((retval = do_symlink_internal(parent_ino, name, ln_target))) {
+ com_err(func_name, retval,
+ _("while writing symlink\"%s\""), name);
+ return retval;
+ }
+ break;
+ case S_IFREG:
+ if ((retval = do_write_internal(parent_ino, name, name))) {
+ com_err(func_name, retval,
+ _("while writing file \"%s\""), name);
+ return retval;
+ }
+ break;
+ case S_IFDIR:
+ if ((retval = do_mkdir_internal(parent_ino, name, &st))) {
+ com_err(func_name, retval,
+ _("while making dir \"%s\""), name);
+ return retval;
+ }
+ if ((retval = ext2fs_namei(current_fs, root, parent_ino, name, &ino))) {
+ com_err(name, retval, 0);
+ return retval;
+ }
+ /* Populate the dir recursively*/
+ retval = populate_fs(ino, name);
+ if (retval) {
+ com_err(func_name, retval, _("while adding dir \"%s\""), name);
+ return retval;
+ }
+ chdir("..");
+ break;
+ default:
+ com_err(func_name, 0,
+ _("ignoring entry \"%s\""), name);
+ }
+ }
+ closedir(dh);
+ return retval;
}
--
1.7.10.4
next prev parent reply other threads:[~2013-12-23 12:10 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-23 12:09 [PATCH 00/10] e2fsprogs/mke2fs: add an option: -d root-directory Robert Yang
2013-12-23 12:09 ` [PATCH 01/10] mke2fs.c: " Robert Yang
2013-12-23 19:08 ` Darren Hart
2013-12-24 1:52 ` Robert Yang
2013-12-26 16:07 ` Theodore Ts'o
2013-12-23 12:09 ` Robert Yang [this message]
2013-12-23 12:09 ` [PATCH 03/10] misc/create_inode.c: create special file Robert Yang
2013-12-23 12:09 ` [PATCH 04/10] misc/create_inode.c: create symlink Robert Yang
2013-12-23 19:27 ` Darren Hart
2013-12-23 12:09 ` [PATCH 05/10] misc/create_inode.c: copy regular file Robert Yang
2013-12-23 19:32 ` Darren Hart
2013-12-26 16:03 ` Theodore Ts'o
2013-12-27 1:48 ` Robert Yang
2013-12-23 12:09 ` [PATCH 06/10] misc/create_inode.c: create directory Robert Yang
2013-12-23 19:35 ` Darren Hart
2013-12-23 12:09 ` [PATCH 07/10] misc/create_inode.c: set owner/mode/time for the inode Robert Yang
2013-12-23 12:09 ` [PATCH 08/10] misc/create_inode.c: handle hardlinks Robert Yang
2013-12-23 12:09 ` [PATCH 09/10] debugfs: use the functions in misc/create_inode.c Robert Yang
2013-12-23 12:10 ` [PATCH 10/10] mke2fs.8.in: update the manual for the -d option Robert Yang
2013-12-23 19:05 ` [PATCH 00/10] e2fsprogs/mke2fs: add an option: -d root-directory Darren Hart
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