zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/app/busybox/src/e2fsprogs/old_e2fsprogs/chattr.c b/ap/app/busybox/src/e2fsprogs/old_e2fsprogs/chattr.c
new file mode 100644
index 0000000..ae39d92
--- /dev/null
+++ b/ap/app/busybox/src/e2fsprogs/old_e2fsprogs/chattr.c
@@ -0,0 +1,220 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * chattr.c - Change file attributes on an ext2 file system
+ *
+ * Copyright (C) 1993, 1994 Remy Card <card@masi.ibp.fr>
+ * Laboratoire MASI, Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ * This file can be redistributed under the terms of the GNU General
+ * Public License
+ */
+
+/*
+ * History:
+ * 93/10/30 - Creation
+ * 93/11/13 - Replace stat() calls by lstat() to avoid loops
+ * 94/02/27 - Integrated in Ted's distribution
+ * 98/12/29 - Ignore symlinks when working recursively (G M Sipe)
+ * 98/12/29 - Display version info only when -V specified (G M Sipe)
+ */
+
+#include <sys/types.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/param.h>
+#include <sys/stat.h>
+#include "ext2fs/ext2_fs.h"
+
+#ifdef __GNUC__
+# define EXT2FS_ATTR(x) __attribute__(x)
+#else
+# define EXT2FS_ATTR(x)
+#endif
+
+#include "e2fsbb.h"
+#include "e2p/e2p.h"
+
+#define OPT_ADD 1
+#define OPT_REM 2
+#define OPT_SET 4
+#define OPT_SET_VER 8
+static int flags;
+static int recursive;
+
+static unsigned long version;
+
+static unsigned long af;
+static unsigned long rf;
+static unsigned long sf;
+
+struct flags_char {
+ unsigned long flag;
+ char optchar;
+};
+
+static const struct flags_char flags_array[] = {
+ { EXT2_NOATIME_FL, 'A' },
+ { EXT2_SYNC_FL, 'S' },
+ { EXT2_DIRSYNC_FL, 'D' },
+ { EXT2_APPEND_FL, 'a' },
+ { EXT2_COMPR_FL, 'c' },
+ { EXT2_NODUMP_FL, 'd' },
+ { EXT2_IMMUTABLE_FL, 'i' },
+ { EXT3_JOURNAL_DATA_FL, 'j' },
+ { EXT2_SECRM_FL, 's' },
+ { EXT2_UNRM_FL, 'u' },
+ { EXT2_NOTAIL_FL, 't' },
+ { EXT2_TOPDIR_FL, 'T' },
+ { 0, 0 }
+};
+
+static unsigned long get_flag(char c)
+{
+ const struct flags_char *fp;
+ for (fp = flags_array; fp->flag; fp++)
+ if (fp->optchar == c)
+ return fp->flag;
+ bb_show_usage();
+ return 0;
+}
+
+static int decode_arg(char *arg)
+{
+ unsigned long *fl;
+ char opt = *arg++;
+
+ if (opt == '-') {
+ flags |= OPT_REM;
+ fl = &rf;
+ } else if (opt == '+') {
+ flags |= OPT_ADD;
+ fl = ⁡
+ } else if (opt == '=') {
+ flags |= OPT_SET;
+ fl = &sf;
+ } else
+ return EOF;
+
+ for (; *arg; ++arg)
+ (*fl) |= get_flag(*arg);
+
+ return 1;
+}
+
+static int chattr_dir_proc(const char *, struct dirent *, void *);
+
+static void change_attributes(const char * name)
+{
+ unsigned long fsflags;
+ struct stat st;
+
+ if (lstat(name, &st) == -1) {
+ bb_error_msg("stat %s failed", name);
+ return;
+ }
+ if (S_ISLNK(st.st_mode) && recursive)
+ return;
+
+ /* Don't try to open device files, fifos etc. We probably
+ * ought to display an error if the file was explicitly given
+ * on the command line (whether or not recursive was
+ * requested). */
+ if (!S_ISREG(st.st_mode) && !S_ISLNK(st.st_mode) && !S_ISDIR(st.st_mode))
+ return;
+
+ if (flags & OPT_SET_VER)
+ if (fsetversion(name, version) == -1)
+ bb_error_msg("setting version on %s", name);
+
+ if (flags & OPT_SET) {
+ fsflags = sf;
+ } else {
+ if (fgetflags(name, &fsflags) == -1) {
+ bb_error_msg("reading flags on %s", name);
+ goto skip_setflags;
+ }
+ if (flags & OPT_REM)
+ fsflags &= ~rf;
+ if (flags & OPT_ADD)
+ fsflags |= af;
+ if (!S_ISDIR(st.st_mode))
+ fsflags &= ~EXT2_DIRSYNC_FL;
+ }
+ if (fsetflags(name, fsflags) == -1)
+ bb_error_msg("setting flags on %s", name);
+
+skip_setflags:
+ if (S_ISDIR(st.st_mode) && recursive)
+ iterate_on_dir(name, chattr_dir_proc, NULL);
+}
+
+static int chattr_dir_proc(const char *dir_name, struct dirent *de,
+ void *private EXT2FS_ATTR((unused)))
+{
+ /*if (strcmp(de->d_name, ".") || strcmp(de->d_name, "..")) {*/
+ if (de->d_name[0] == '.'
+ && (!de->d_name[1] || (de->d_name[1] == '.' && !de->d_name[2]))
+ ) {
+ char *path = concat_subpath_file(dir_name, de->d_name);
+ if (path) {
+ change_attributes(path);
+ free(path);
+ }
+ }
+ return 0;
+}
+
+int chattr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int chattr_main(int argc, char **argv)
+{
+ int i;
+ char *arg;
+
+ /* parse the args */
+ for (i = 1; i < argc; ++i) {
+ arg = argv[i];
+
+ /* take care of -R and -v <version> */
+ if (arg[0] == '-') {
+ if (arg[1] == 'R' && arg[2] == '\0') {
+ recursive = 1;
+ continue;
+ } else if (arg[1] == 'v' && arg[2] == '\0') {
+ char *tmp;
+ ++i;
+ if (i >= argc)
+ bb_show_usage();
+ version = strtol(argv[i], &tmp, 0);
+ if (*tmp)
+ bb_error_msg_and_die("bad version '%s'", arg);
+ flags |= OPT_SET_VER;
+ continue;
+ }
+ }
+
+ if (decode_arg(arg) == EOF)
+ break;
+ }
+
+ /* run sanity checks on all the arguments given us */
+ if (i >= argc)
+ bb_show_usage();
+ if ((flags & OPT_SET) && ((flags & OPT_ADD) || (flags & OPT_REM)))
+ bb_error_msg_and_die("= is incompatible with - and +");
+ if ((rf & af) != 0)
+ bb_error_msg_and_die("Can't set and unset a flag");
+ if (!flags)
+ bb_error_msg_and_die("Must use '-v', =, - or +");
+
+ /* now run chattr on all the files passed to us */
+ while (i < argc)
+ change_attributes(argv[i++]);
+
+ return EXIT_SUCCESS;
+}