1 #if !defined(__FreeBSD__) && !defined(__NetBSD__) && !defined(__OpenBSD__)
2 #define _XOPEN_SOURCE 600
3 #define _DARWIN_C_SOURCE
4 #ifndef _GNU_SOURCE
5 #define _GNU_SOURCE
6 #endif
7 #endif
8 #ifndef O_LARGEFILE
9 #define O_LARGEFILE 0
10 #endif
11 #include <f2fs_fs.h>
12 #include <unistd.h>
13 #include <string.h>
14 #include <stdlib.h>
15 #include <stdio.h>
16 #include <fcntl.h>
17 #include <errno.h>
18 #include <sys/types.h>
19 #ifdef HAVE_SYS_IOCTL_H
20 #include <sys/ioctl.h>
21 #endif
22 #include <sys/stat.h>
23 #ifdef HAVE_SYS_SYSMACROS_H
24 #include <sys/sysmacros.h>
25 #endif
26 #include <libgen.h>
27 #ifdef HAVE_LINUX_HDREG_H
28 #include <linux/hdreg.h>
29 #endif
30 #ifdef HAVE_LINUX_TYPES_H
31 #include <linux/types.h>
32 #endif
33 #ifdef __KERNEL__
34 #include <linux/fs.h>
35 #endif
36 #include <inttypes.h>
37
38 #ifndef FIBMAP
39 #define FIBMAP _IO(0x00, 1) /* bmap access */
40 #endif
41
42 struct file_ext {
43 __u64 f_pos;
44 __u32 start_blk;
45 __u32 end_blk;
46 __u32 blk_count;
47 };
48
print_ext(struct file_ext * ext)49 void print_ext(struct file_ext *ext)
50 {
51 if (ext->end_blk == 0)
52 printf("%8llu %8d %8d %8d\n", ext->f_pos, 0, 0, ext->blk_count);
53 else
54 printf("%8llu %8d %8d %8d\n", ext->f_pos, ext->start_blk,
55 ext->end_blk, ext->blk_count);
56 }
57
58 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
print_stat(struct stat64 * st)59 void print_stat(struct stat64 *st)
60 #else
61 void print_stat(struct stat *st)
62 #endif
63 {
64 printf("--------------------------------------------\n");
65 printf("dev [%d:%d]\n", major(st->st_dev), minor(st->st_dev));
66 printf("ino [0x%8"PRIx64" : %"PRIu64"]\n",
67 st->st_ino, st->st_ino);
68 printf("mode [0x%8x : %d]\n", st->st_mode, st->st_mode);
69 printf("nlink [0x%8lx : %ld]\n",
70 (unsigned long)st->st_nlink,
71 (long)st->st_nlink);
72 printf("uid [0x%8x : %d]\n", st->st_uid, st->st_uid);
73 printf("gid [0x%8x : %d]\n", st->st_gid, st->st_gid);
74 printf("size [0x%8"PRIx64" : %"PRIu64"]\n",
75 (u64)st->st_size, (u64)st->st_size);
76 printf("blksize [0x%8lx : %ld]\n",
77 (unsigned long)st->st_blksize,
78 (long)st->st_blksize);
79 printf("blocks [0x%8"PRIx64" : %"PRIu64"]\n",
80 (u64)st->st_blocks, (u64)st->st_blocks);
81 printf("--------------------------------------------\n\n");
82 }
83
84 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
stat_bdev(struct stat64 * st,unsigned int * start_lba)85 static void stat_bdev(struct stat64 *st, unsigned int *start_lba)
86 #else
87 static void stat_bdev(struct stat *st, unsigned int *start_lba)
88 #endif
89 {
90 struct stat bdev_stat;
91 #ifdef HDIO_GETGIO
92 struct hd_geometry geom;
93 #endif
94 char devname[32] = { 0, };
95 char linkname[32] = { 0, };
96 int fd;
97
98 sprintf(devname, "/sys/dev/block/%d:%d", major(st->st_dev), minor(st->st_dev));
99
100 fd = open(devname, O_RDONLY);
101 if (fd < 0)
102 return;
103
104 if (fstat(fd, &bdev_stat) < 0)
105 goto out;
106
107 if (S_ISBLK(bdev_stat.st_mode)) {
108 #ifdef HDIO_GETGIO
109 if (ioctl(fd, HDIO_GETGEO, &geom) < 0)
110 *start_lba = 0;
111 else
112 *start_lba = geom.start;
113 #else
114 *start_lba = 0;
115 #endif
116 }
117
118 if (readlink(devname, linkname, sizeof(linkname)) < 0)
119 goto out;
120
121 printf("----------------bdev info-------------------\n");
122 printf("devname = %s\n", basename(linkname));
123 printf("start_lba = %u\n", *start_lba);
124
125 out:
126 close(fd);
127
128 }
129
main(int argc,char * argv[])130 int main(int argc, char *argv[])
131 {
132 int fd;
133 int ret = 0;
134 char *filename;
135 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
136 struct stat64 st;
137 #else
138 struct stat st;
139 #endif
140 int total_blks;
141 unsigned int i;
142 struct file_ext ext;
143 __u32 start_lba;
144 __u32 blknum;
145
146 if (argc != 2) {
147 fprintf(stderr, "No filename\n");
148 exit(-1);
149 }
150 filename = argv[1];
151
152 fd = open(filename, O_RDONLY|O_LARGEFILE);
153 if (fd < 0) {
154 ret = errno;
155 perror(filename);
156 exit(-1);
157 }
158
159 fsync(fd);
160
161 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
162 if (fstat64(fd, &st) < 0) {
163 #else
164 if (fstat(fd, &st) < 0) {
165 #endif
166 ret = errno;
167 perror(filename);
168 goto out;
169 }
170
171 stat_bdev(&st, &start_lba);
172
173 total_blks = (st.st_size + st.st_blksize - 1) / st.st_blksize;
174
175 printf("\n----------------file info-------------------\n");
176 printf("%s :\n", filename);
177 print_stat(&st);
178 printf("file_pos start_blk end_blk blks\n");
179
180 blknum = 0;
181 if (ioctl(fd, FIBMAP, &blknum) < 0) {
182 ret = errno;
183 perror("ioctl(FIBMAP)");
184 goto out;
185 }
186 ext.f_pos = 0;
187 ext.start_blk = blknum;
188 ext.end_blk = blknum;
189 ext.blk_count = 1;
190
191 for (i = 1; i < total_blks; i++) {
192 blknum = i;
193
194 if (ioctl(fd, FIBMAP, &blknum) < 0) {
195 ret = errno;
196 perror("ioctl(FIBMAP)");
197 goto out;
198 }
199
200 if ((blknum == 0 && blknum == ext.end_blk) || (ext.end_blk + 1) == blknum) {
201 ext.end_blk = blknum;
202 ext.blk_count++;
203 } else {
204 print_ext(&ext);
205 ext.f_pos = (__u64)i * st.st_blksize;
206 ext.start_blk = blknum;
207 ext.end_blk = blknum;
208 ext.blk_count = 1;
209 }
210 }
211
212 print_ext(&ext);
213 out:
214 close(fd);
215 return ret;
216 }
217