1 /* vi: set sw=4 ts=4: */
3 * See README for additional information
5 * This file can be redistributed under the terms of the GNU Library General
12 #define HAVE_EXT2_IOCTLS 1
14 #if INT_MAX == LONG_MAX
15 #define IF_LONG_IS_SAME(...) __VA_ARGS__
16 #define IF_LONG_IS_WIDER(...)
18 #define IF_LONG_IS_SAME(...)
19 #define IF_LONG_IS_WIDER(...) __VA_ARGS__
22 static void close_silently(int fd)
30 /* Iterate a function on each entry of a directory */
31 int iterate_on_dir(const char *dir_name,
32 int (*func)(const char *, struct dirent *, void *),
36 struct dirent *de, *dep;
39 max_len = PATH_MAX + sizeof(struct dirent);
40 de = xmalloc(max_len+1);
41 memset(de, 0, max_len+1);
43 dir = opendir(dir_name);
48 while ((dep = readdir(dir))) {
49 len = sizeof(struct dirent);
50 if (len < dep->d_reclen)
55 func(dir_name, de, private);
63 /* Get/set a file version on an ext2 file system */
64 int fgetsetversion(const char *name, unsigned long *get_version, unsigned long set_version)
68 IF_LONG_IS_WIDER(int ver;)
70 fd = open(name, O_NONBLOCK);
75 ver = (int) set_version;
76 r = ioctl(fd, EXT2_IOC_SETVERSION, &ver);
79 r = ioctl(fd, EXT2_IOC_SETVERSION, (void*)&set_version);
83 r = ioctl(fd, EXT2_IOC_GETVERSION, &ver);
87 r = ioctl(fd, EXT2_IOC_GETVERSION, (void*)get_version);
92 #else /* ! HAVE_EXT2_IOCTLS */
95 #endif /* ! HAVE_EXT2_IOCTLS */
99 /* Get/set a file flags on an ext2 file system */
100 int fgetsetflags(const char *name, unsigned long *get_flags, unsigned long set_flags)
105 IF_LONG_IS_WIDER(int f;)
107 if (stat(name, &buf) == 0 /* stat is ok */
108 && !S_ISREG(buf.st_mode) && !S_ISDIR(buf.st_mode)
112 fd = open(name, O_NONBLOCK); /* neither read nor write asked for */
119 r = ioctl(fd, EXT2_IOC_SETFLAGS, &f);
122 r = ioctl(fd, EXT2_IOC_SETFLAGS, (void*)&set_flags);
126 r = ioctl(fd, EXT2_IOC_GETFLAGS, &f);
130 r = ioctl(fd, EXT2_IOC_GETFLAGS, (void*)get_flags);
137 #endif /* HAVE_EXT2_IOCTLS */
143 /* Print file attributes on an ext2 file system */
144 const uint32_t e2attr_flags_value[] = {
145 #ifdef ENABLE_COMPRESSION
161 EXT3_JOURNAL_DATA_FL,
166 const char e2attr_flags_sname[] =
167 #ifdef ENABLE_COMPRESSION
173 static const char e2attr_flags_lname[] =
174 #ifdef ENABLE_COMPRESSION
175 "Compressed_File" "\0"
176 "Compressed_Dirty_File" "\0"
177 "Compression_Raw_Access" "\0"
178 "Compression_Error" "\0"
180 "Indexed_directory" "\0"
181 "Secure_Deletion" "\0"
183 "Synchronous_Updates" "\0"
184 "Synchronous_Directory_Updates" "\0"
189 "Compression_Requested" "\0"
190 "Journaled_Data" "\0"
191 "No_Tailmerging" "\0"
192 "Top_of_Directory_Hierarchies" "\0"
193 /* Another trailing NUL is added by compiler */;
195 void print_flags(FILE *f, unsigned long flags, unsigned options)
200 fv = e2attr_flags_value;
201 if (options & PFOPT_LONG) {
203 fn = e2attr_flags_lname;
212 fn += strlen(fn) + 1;
217 fn = e2attr_flags_sname;