busybox/e2fsprogs/e2fs_lib.c
Denys Vlasenko 96436fb36a e2fsprogs/*: remove ioctl calling obfuscation
function                                             old     new   delta
change_attributes                                    326     416     +90
list_attributes                                      222     248     +26
close_silently                                        22       -     -22
.rodata                                           103722  103692     -30
fgetsetversion                                        74       -     -74
fgetsetprojid                                        107       -    -107
fgetsetflags                                         148       -    -148
------------------------------------------------------------------------------
(add/remove: 0/4 grow/shrink: 2/1 up/down: 116/-381)         Total: -265 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-06-23 12:56:40 +02:00

134 lines
2.5 KiB
C

/* 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"
#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
/* 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;
}
/* Print file attributes on an ext2 file system */
const uint32_t e2attr_flags_value[] ALIGN4 = {
#ifdef ENABLE_COMPRESSION
EXT2_COMPRBLK_FL,
EXT2_DIRTY_FL,
EXT2_NOCOMPR_FL,
#endif
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,
EXT2_ECOMPR_FL,
EXT3_JOURNAL_DATA_FL,
EXT2_INDEX_FL,
EXT2_NOTAIL_FL,
EXT2_TOPDIR_FL,
EXT2_EXTENT_FL,
EXT2_NOCOW_FL,
EXT2_CASEFOLD_FL,
EXT2_INLINE_DATA_FL,
EXT2_PROJINHERIT_FL,
EXT2_VERITY_FL,
};
const char e2attr_flags_sname[] ALIGN1 =
#ifdef ENABLE_COMPRESSION
"BZX"
#endif
"suSDiadAcEjItTeCFNPV";
static const char e2attr_flags_lname[] ALIGN1 =
#ifdef ENABLE_COMPRESSION
"Compressed_File" "\0"
"Compressed_Dirty_File" "\0"
"Compression_Raw_Access" "\0"
#endif
"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"
"Encrypted" "\0"
"Journaled_Data" "\0"
"Indexed_directory" "\0"
"No_Tailmerging" "\0"
"Top_of_Directory_Hierarchies" "\0"
"Extents" "\0"
"No_COW" "\0"
"Casefold" "\0"
"Inline_Data" "\0"
"Project_Hierarchy" "\0"
"Verity" "\0"
/* Another trailing NUL is added by compiler */;
void print_e2flags(FILE *f, unsigned 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);
}
}