1 #if !defined(__FreeBSD__) && !defined(__NetBSD__) && !defined(__OpenBSD__)
2 #define _XOPEN_SOURCE 600
3 #define _DARWIN_C_SOURCE
4 #define _FILE_OFFSET_BITS 64
5 #ifndef _LARGEFILE_SOURCE
6 #define _LARGEFILE_SOURCE
7 #endif
8 #ifndef _LARGEFILE64_SOURCE
9 #define _LARGEFILE64_SOURCE
10 #endif
11 #ifndef _GNU_SOURCE
12 #define _GNU_SOURCE
13 #endif
14 #endif
15 #ifndef O_LARGEFILE
16 #define O_LARGEFILE 0
17 #endif
18 #include <f2fs_fs.h>
19 #include <unistd.h>
20 #include <string.h>
21 #include <stdlib.h>
22 #include <stdio.h>
23 #include <fcntl.h>
24 #include <errno.h>
25 #include <sys/types.h>
26 #include <sys/ioctl.h>
27 #include <sys/stat.h>
28 #ifdef HAVE_SYS_SYSMACROS_H
29 #include <sys/sysmacros.h>
30 #endif
31 #include <libgen.h>
32 #ifdef HAVE_LINUX_HDREG_H
33 #include <linux/hdreg.h>
34 #endif
35 #ifdef HAVE_LINUX_TYPES_H
36 #include <linux/types.h>
37 #endif
38 #ifdef __KERNEL__
39 #include <linux/fs.h>
40 #endif
41 #include <inttypes.h>
42 
43 #ifndef FIBMAP
44 #define FIBMAP          _IO(0x00, 1)    /* bmap access */
45 #endif
46 
47 struct file_ext {
48 	__u32 f_pos;
49 	__u32 start_blk;
50 	__u32 end_blk;
51 	__u32 blk_count;
52 };
53 
54 void print_ext(struct file_ext *ext)
55 {
56 	if (ext->end_blk == 0)
57 		printf("%8d    %8d    %8d    %8d\n", ext->f_pos, 0, 0, ext->blk_count);
58 	else
59 		printf("%8d    %8d    %8d    %8d\n", ext->f_pos, ext->start_blk,
60 					ext->end_blk, ext->blk_count);
61 }
62 
63 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
64 void print_stat(struct stat64 *st)
65 #else
66 void print_stat(struct stat *st)
67 #endif
68 {
69 	printf("--------------------------------------------\n");
70 	printf("dev       [%d:%d]\n", major(st->st_dev), minor(st->st_dev));
71 	printf("ino       [0x%8"PRIx64" : %"PRIu64"]\n",
72 						st->st_ino, st->st_ino);
73 	printf("mode      [0x%8x : %d]\n", st->st_mode, st->st_mode);
74 	printf("nlink     [0x%8lx : %ld]\n",
75 					(unsigned long)st->st_nlink,
76 					(long)st->st_nlink);
77 	printf("uid       [0x%8x : %d]\n", st->st_uid, st->st_uid);
78 	printf("gid       [0x%8x : %d]\n", st->st_gid, st->st_gid);
79 	printf("size      [0x%8"PRIx64" : %"PRIu64"]\n",
80 					(u64)st->st_size, (u64)st->st_size);
81 	printf("blksize   [0x%8lx : %ld]\n",
82 					(unsigned long)st->st_blksize,
83 					(long)st->st_blksize);
84 	printf("blocks    [0x%8"PRIx64" : %"PRIu64"]\n",
85 					(u64)st->st_blocks, (u64)st->st_blocks);
86 	printf("--------------------------------------------\n\n");
87 }
88 
89 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
90 static void stat_bdev(struct stat64 *st, unsigned int *start_lba)
91 #else
92 static void stat_bdev(struct stat *st, unsigned int *start_lba)
93 #endif
94 {
95 	struct stat bdev_stat;
96 #ifdef HDIO_GETGIO
97 	struct hd_geometry geom;
98 #endif
99 	char devname[32] = { 0, };
100 	char linkname[32] = { 0, };
101 	int fd;
102 
103 	sprintf(devname, "/dev/block/%d:%d", major(st->st_dev), minor(st->st_dev));
104 
105 	fd = open(devname, O_RDONLY);
106 	if (fd < 0)
107 		return;
108 
109 	if (fstat(fd, &bdev_stat) < 0)
110 		goto out;
111 
112 	if (S_ISBLK(bdev_stat.st_mode)) {
113 #ifdef HDIO_GETGIO
114 		if (ioctl(fd, HDIO_GETGEO, &geom) < 0)
115 			*start_lba = 0;
116 		else
117 			*start_lba = geom.start;
118 #else
119 		*start_lba = 0;
120 #endif
121 	}
122 
123 	if (readlink(devname, linkname, sizeof(linkname)) < 0)
124 		goto out;
125 
126 	printf("----------------bdev info-------------------\n");
127 	printf("devname = %s\n", basename(linkname));
128 	printf("start_lba = %u\n", *start_lba);
129 
130 out:
131 	close(fd);
132 
133 }
134 
135 int main(int argc, char *argv[])
136 {
137 	int fd;
138 	int ret = 0;
139 	char *filename;
140 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
141 	struct stat64 st;
142 #else
143 	struct stat st;
144 #endif
145 	int total_blks;
146 	unsigned int i;
147 	struct file_ext ext;
148 	__u32 start_lba;
149 	__u32 blknum;
150 
151 	if (argc != 2) {
152 		fprintf(stderr, "No filename\n");
153 		exit(-1);
154 	}
155 	filename = argv[1];
156 
157 	fd = open(filename, O_RDONLY|O_LARGEFILE);
158 	if (fd < 0) {
159 		ret = errno;
160 		perror(filename);
161 		exit(-1);
162 	}
163 
164 	fsync(fd);
165 
166 #if defined(HAVE_FSTAT64) && !defined(__OSX_AVAILABLE_BUT_DEPRECATED)
167 	if (fstat64(fd, &st) < 0) {
168 #else
169 	if (fstat(fd, &st) < 0) {
170 #endif
171 		ret = errno;
172 		perror(filename);
173 		goto out;
174 	}
175 
176 	stat_bdev(&st, &start_lba);
177 
178 	total_blks = (st.st_size + st.st_blksize - 1) / st.st_blksize;
179 
180 	printf("\n----------------file info-------------------\n");
181 	printf("%s :\n", filename);
182 	print_stat(&st);
183 	printf("file_pos   start_blk     end_blk        blks\n");
184 
185 	blknum = 0;
186 	if (ioctl(fd, FIBMAP, &blknum) < 0) {
187 		ret = errno;
188 		perror("ioctl(FIBMAP)");
189 		goto out;
190 	}
191 	ext.f_pos = 0;
192 	ext.start_blk = blknum;
193 	ext.end_blk = blknum;
194 	ext.blk_count = 1;
195 
196 	for (i = 1; i < total_blks; i++) {
197 		blknum = i;
198 
199 		if (ioctl(fd, FIBMAP, &blknum) < 0) {
200 			ret = errno;
201 			perror("ioctl(FIBMAP)");
202 			goto out;
203 		}
204 
205 		if ((blknum == 0 && blknum == ext.end_blk) || (ext.end_blk + 1) == blknum) {
206 			ext.end_blk = blknum;
207 			ext.blk_count++;
208 		} else {
209 			print_ext(&ext);
210 			ext.f_pos = i * st.st_blksize;
211 			ext.start_blk = blknum;
212 			ext.end_blk = blknum;
213 			ext.blk_count = 1;
214 		}
215 	}
216 
217 	print_ext(&ext);
218 out:
219 	close(fd);
220 	return ret;
221 }
222