[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/busybox/src/e2fsprogs/e2fs_lib.c b/ap/app/busybox/src/e2fsprogs/e2fs_lib.c
new file mode 100644
index 0000000..a6aec94
--- /dev/null
+++ b/ap/app/busybox/src/e2fsprogs/e2fs_lib.c
@@ -0,0 +1,213 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * See README for additional information
+ *
+ * Licensed under GPLv2, see file LICENSE in this source tree.
+ */
+
+#include "libbb.h"
+#include "e2fs_lib.h"
+
+#define HAVE_EXT2_IOCTLS 1
+
+#if INT_MAX == LONG_MAX
+#define IF_LONG_IS_SAME(...) __VA_ARGS__
+#define IF_LONG_IS_WIDER(...)
+#else
+#define IF_LONG_IS_SAME(...)
+#define IF_LONG_IS_WIDER(...) __VA_ARGS__
+#endif
+
+static void close_silently(int fd)
+{
+ int e = errno;
+ close(fd);
+ errno = e;
+}
+
+
+/* Iterate a function on each entry of a directory */
+int iterate_on_dir(const char *dir_name,
+ int FAST_FUNC (*func)(const char *, struct dirent *, void *),
+ void *private)
+{
+ DIR *dir;
+ struct dirent *de;
+
+ dir = opendir(dir_name);
+ if (dir == NULL) {
+ return -1;
+ }
+ while ((de = readdir(dir)) != NULL) {
+ func(dir_name, de, private);
+ }
+ closedir(dir);
+ return 0;
+}
+
+
+/* Get/set a file version on an ext2 file system */
+int fgetsetversion(const char *name, unsigned long *get_version, unsigned long set_version)
+{
+#if HAVE_EXT2_IOCTLS
+ int fd, r;
+ IF_LONG_IS_WIDER(int ver;)
+
+ fd = open(name, O_RDONLY | O_NONBLOCK);
+ if (fd == -1)
+ return -1;
+ if (!get_version) {
+ IF_LONG_IS_WIDER(
+ ver = (int) set_version;
+ r = ioctl(fd, EXT2_IOC_SETVERSION, &ver);
+ )
+ IF_LONG_IS_SAME(
+ r = ioctl(fd, EXT2_IOC_SETVERSION, (void*)&set_version);
+ )
+ } else {
+ IF_LONG_IS_WIDER(
+ r = ioctl(fd, EXT2_IOC_GETVERSION, &ver);
+ *get_version = ver;
+ )
+ IF_LONG_IS_SAME(
+ r = ioctl(fd, EXT2_IOC_GETVERSION, (void*)get_version);
+ )
+ }
+ close_silently(fd);
+ return r;
+#else /* ! HAVE_EXT2_IOCTLS */
+ errno = EOPNOTSUPP;
+ return -1;
+#endif /* ! HAVE_EXT2_IOCTLS */
+}
+
+
+/* Get/set a file flags on an ext2 file system */
+int fgetsetflags(const char *name, unsigned long *get_flags, unsigned long set_flags)
+{
+#if HAVE_EXT2_IOCTLS
+ struct stat buf;
+ int fd, r;
+ IF_LONG_IS_WIDER(int f;)
+
+ if (stat(name, &buf) == 0 /* stat is ok */
+ && !S_ISREG(buf.st_mode) && !S_ISDIR(buf.st_mode)
+ ) {
+ goto notsupp;
+ }
+ fd = open(name, O_RDONLY | O_NONBLOCK); /* neither read nor write asked for */
+ if (fd == -1)
+ return -1;
+
+ if (!get_flags) {
+ IF_LONG_IS_WIDER(
+ f = (int) set_flags;
+ r = ioctl(fd, EXT2_IOC_SETFLAGS, &f);
+ )
+ IF_LONG_IS_SAME(
+ r = ioctl(fd, EXT2_IOC_SETFLAGS, (void*)&set_flags);
+ )
+ } else {
+ IF_LONG_IS_WIDER(
+ r = ioctl(fd, EXT2_IOC_GETFLAGS, &f);
+ *get_flags = f;
+ )
+ IF_LONG_IS_SAME(
+ r = ioctl(fd, EXT2_IOC_GETFLAGS, (void*)get_flags);
+ )
+ }
+
+ close_silently(fd);
+ return r;
+ notsupp:
+#endif /* HAVE_EXT2_IOCTLS */
+ errno = EOPNOTSUPP;
+ return -1;
+}
+
+
+/* Print file attributes on an ext2 file system */
+const uint32_t e2attr_flags_value[] = {
+#ifdef ENABLE_COMPRESSION
+ EXT2_COMPRBLK_FL,
+ EXT2_DIRTY_FL,
+ EXT2_NOCOMPR_FL,
+ EXT2_ECOMPR_FL,
+#endif
+ EXT2_INDEX_FL,
+ EXT2_SECRM_FL,
+ EXT2_UNRM_FL,
+ EXT2_SYNC_FL,
+ EXT2_DIRSYNC_FL,
+ EXT2_IMMUTABLE_FL,
+ EXT2_APPEND_FL,
+ EXT2_NODUMP_FL,
+ EXT2_NOATIME_FL,
+ EXT2_COMPR_FL,
+ EXT3_JOURNAL_DATA_FL,
+ EXT2_NOTAIL_FL,
+ EXT2_TOPDIR_FL
+};
+
+const char e2attr_flags_sname[] =
+#ifdef ENABLE_COMPRESSION
+ "BZXE"
+#endif
+ "I"
+ "suSDiadAcjtT";
+
+static const char e2attr_flags_lname[] =
+#ifdef ENABLE_COMPRESSION
+ "Compressed_File" "\0"
+ "Compressed_Dirty_File" "\0"
+ "Compression_Raw_Access" "\0"
+ "Compression_Error" "\0"
+#endif
+ "Indexed_directory" "\0"
+ "Secure_Deletion" "\0"
+ "Undelete" "\0"
+ "Synchronous_Updates" "\0"
+ "Synchronous_Directory_Updates" "\0"
+ "Immutable" "\0"
+ "Append_Only" "\0"
+ "No_Dump" "\0"
+ "No_Atime" "\0"
+ "Compression_Requested" "\0"
+ "Journaled_Data" "\0"
+ "No_Tailmerging" "\0"
+ "Top_of_Directory_Hierarchies" "\0"
+ /* Another trailing NUL is added by compiler */;
+
+void print_e2flags(FILE *f, unsigned long flags, unsigned options)
+{
+ const uint32_t *fv;
+ const char *fn;
+
+ fv = e2attr_flags_value;
+ if (options & PFOPT_LONG) {
+ int first = 1;
+ fn = e2attr_flags_lname;
+ do {
+ if (flags & *fv) {
+ if (!first)
+ fputs(", ", f);
+ fputs(fn, f);
+ first = 0;
+ }
+ fv++;
+ fn += strlen(fn) + 1;
+ } while (*fn);
+ if (first)
+ fputs("---", f);
+ } else {
+ fn = e2attr_flags_sname;
+ do {
+ char c = '-';
+ if (flags & *fv)
+ c = *fn;
+ fputc(c, f);
+ fv++;
+ fn++;
+ } while (*fn);
+ }
+}