| From 08dfbaf4e3f704232ff46d78c0758a6cfe3961c8 Mon Sep 17 00:00:00 2001 |
| From: Robert Yang <liezhi.yang@windriver.com> |
| Date: Mon, 23 Dec 2013 02:59:10 -0500 |
| Subject: [PATCH 02/11] misc/create_inode.c: copy files recursively |
| |
| 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. |
| |
| Upstream-Status: Backport |
| |
| Signed-off-by: Robert Yang <liezhi.yang@windriver.com> |
| Reviewed-by: Darren Hart <dvhart@linux.intel.com> |
| --- |
| misc/create_inode.c | 97 +++++++++++++++++++++++++++++++++++++++++++++++++++ |
| 1 file changed, 97 insertions(+) |
| |
| diff --git a/misc/create_inode.c b/misc/create_inode.c |
| index 46aaa60..b68b910 100644 |
| --- a/misc/create_inode.c |
| +++ b/misc/create_inode.c |
| @@ -1,5 +1,13 @@ |
| #include "create_inode.h" |
| |
| +#if __STDC_VERSION__ < 199901L |
| +# if __GNUC__ >= 2 |
| +# define __func__ __FUNCTION__ |
| +# else |
| +# define __func__ "<unknown>" |
| +# endif |
| +#endif |
| + |
| /* Make a special file which is block, character and fifo */ |
| errcode_t do_mknod_internal(ext2_ino_t cwd, const char *name, struct stat *st) |
| { |
| @@ -23,4 +31,93 @@ 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]; |
| + ext2_ino_t ino; |
| + errcode_t retval; |
| + int read_cnt; |
| + |
| + root = EXT2_ROOT_INO; |
| + |
| + if (chdir(source_dir) < 0) { |
| + com_err(__func__, errno, |
| + _("while changing working directory to \"%s\""), source_dir); |
| + return errno; |
| + } |
| + |
| + if (!(dh = opendir("."))) { |
| + com_err(__func__, 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__, retval, |
| + _("while creating special file \"%s\""), name); |
| + return retval; |
| + } |
| + break; |
| + case S_IFSOCK: |
| + /* FIXME: there is no make socket function atm. */ |
| + com_err(__func__, 0, |
| + _("ignoring socket file \"%s\""), name); |
| + continue; |
| + case S_IFLNK: |
| + if((read_cnt = readlink(name, ln_target, sizeof(ln_target))) == -1) { |
| + com_err(__func__, 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__, retval, |
| + _("while writing symlink\"%s\""), name); |
| + return retval; |
| + } |
| + break; |
| + case S_IFREG: |
| + if ((retval = do_write_internal(parent_ino, name, name))) { |
| + com_err(__func__, retval, |
| + _("while writing file \"%s\""), name); |
| + return retval; |
| + } |
| + break; |
| + case S_IFDIR: |
| + if ((retval = do_mkdir_internal(parent_ino, name, &st))) { |
| + com_err(__func__, 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__, retval, _("while adding dir \"%s\""), name); |
| + return retval; |
| + } |
| + chdir(".."); |
| + break; |
| + default: |
| + com_err(__func__, 0, |
| + _("ignoring entry \"%s\""), name); |
| + } |
| + } |
| + closedir(dh); |
| + return retval; |
| } |
| -- |
| 1.7.10.4 |
| |