Commit | Line | Data |
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a528d35e DH |
1 | /* Test the statx() system call. |
2 | * | |
3 | * Note that the output of this program is intended to look like the output of | |
4 | * /bin/stat where possible. | |
5 | * | |
6 | * Copyright (C) 2015 Red Hat, Inc. All Rights Reserved. | |
7 | * Written by David Howells (dhowells@redhat.com) | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU General Public Licence | |
11 | * as published by the Free Software Foundation; either version | |
12 | * 2 of the Licence, or (at your option) any later version. | |
13 | */ | |
14 | ||
15 | #define _GNU_SOURCE | |
16 | #define _ATFILE_SOURCE | |
17 | #include <stdio.h> | |
18 | #include <stdlib.h> | |
19 | #include <string.h> | |
20 | #include <unistd.h> | |
21 | #include <ctype.h> | |
22 | #include <errno.h> | |
23 | #include <time.h> | |
24 | #include <sys/syscall.h> | |
25 | #include <sys/types.h> | |
26 | #include <linux/stat.h> | |
27 | #include <linux/fcntl.h> | |
28 | #include <sys/stat.h> | |
29 | ||
30 | #define AT_STATX_SYNC_TYPE 0x6000 | |
31 | #define AT_STATX_SYNC_AS_STAT 0x0000 | |
32 | #define AT_STATX_FORCE_SYNC 0x2000 | |
33 | #define AT_STATX_DONT_SYNC 0x4000 | |
34 | ||
35 | static __attribute__((unused)) | |
36 | ssize_t statx(int dfd, const char *filename, unsigned flags, | |
37 | unsigned int mask, struct statx *buffer) | |
38 | { | |
39 | return syscall(__NR_statx, dfd, filename, flags, mask, buffer); | |
40 | } | |
41 | ||
42 | static void print_time(const char *field, struct statx_timestamp *ts) | |
43 | { | |
44 | struct tm tm; | |
45 | time_t tim; | |
46 | char buffer[100]; | |
47 | int len; | |
48 | ||
49 | tim = ts->tv_sec; | |
50 | if (!localtime_r(&tim, &tm)) { | |
51 | perror("localtime_r"); | |
52 | exit(1); | |
53 | } | |
54 | len = strftime(buffer, 100, "%F %T", &tm); | |
55 | if (len == 0) { | |
56 | perror("strftime"); | |
57 | exit(1); | |
58 | } | |
59 | printf("%s", field); | |
60 | fwrite(buffer, 1, len, stdout); | |
61 | printf(".%09u", ts->tv_nsec); | |
62 | len = strftime(buffer, 100, "%z", &tm); | |
63 | if (len == 0) { | |
64 | perror("strftime2"); | |
65 | exit(1); | |
66 | } | |
67 | fwrite(buffer, 1, len, stdout); | |
68 | printf("\n"); | |
69 | } | |
70 | ||
71 | static void dump_statx(struct statx *stx) | |
72 | { | |
73 | char buffer[256], ft = '?'; | |
74 | ||
75 | printf("results=%x\n", stx->stx_mask); | |
76 | ||
77 | printf(" "); | |
78 | if (stx->stx_mask & STATX_SIZE) | |
79 | printf(" Size: %-15llu", (unsigned long long)stx->stx_size); | |
80 | if (stx->stx_mask & STATX_BLOCKS) | |
81 | printf(" Blocks: %-10llu", (unsigned long long)stx->stx_blocks); | |
82 | printf(" IO Block: %-6llu", (unsigned long long)stx->stx_blksize); | |
83 | if (stx->stx_mask & STATX_TYPE) { | |
84 | switch (stx->stx_mode & S_IFMT) { | |
85 | case S_IFIFO: printf(" FIFO\n"); ft = 'p'; break; | |
86 | case S_IFCHR: printf(" character special file\n"); ft = 'c'; break; | |
87 | case S_IFDIR: printf(" directory\n"); ft = 'd'; break; | |
88 | case S_IFBLK: printf(" block special file\n"); ft = 'b'; break; | |
89 | case S_IFREG: printf(" regular file\n"); ft = '-'; break; | |
90 | case S_IFLNK: printf(" symbolic link\n"); ft = 'l'; break; | |
91 | case S_IFSOCK: printf(" socket\n"); ft = 's'; break; | |
92 | default: | |
93 | printf(" unknown type (%o)\n", stx->stx_mode & S_IFMT); | |
94 | break; | |
95 | } | |
96 | } else { | |
97 | printf(" no type\n"); | |
98 | } | |
99 | ||
100 | sprintf(buffer, "%02x:%02x", stx->stx_dev_major, stx->stx_dev_minor); | |
101 | printf("Device: %-15s", buffer); | |
102 | if (stx->stx_mask & STATX_INO) | |
103 | printf(" Inode: %-11llu", (unsigned long long) stx->stx_ino); | |
104 | if (stx->stx_mask & STATX_NLINK) | |
105 | printf(" Links: %-5u", stx->stx_nlink); | |
106 | if (stx->stx_mask & STATX_TYPE) { | |
107 | switch (stx->stx_mode & S_IFMT) { | |
108 | case S_IFBLK: | |
109 | case S_IFCHR: | |
110 | printf(" Device type: %u,%u", | |
111 | stx->stx_rdev_major, stx->stx_rdev_minor); | |
112 | break; | |
113 | } | |
114 | } | |
115 | printf("\n"); | |
116 | ||
117 | if (stx->stx_mask & STATX_MODE) | |
118 | printf("Access: (%04o/%c%c%c%c%c%c%c%c%c%c) ", | |
119 | stx->stx_mode & 07777, | |
120 | ft, | |
121 | stx->stx_mode & S_IRUSR ? 'r' : '-', | |
122 | stx->stx_mode & S_IWUSR ? 'w' : '-', | |
123 | stx->stx_mode & S_IXUSR ? 'x' : '-', | |
124 | stx->stx_mode & S_IRGRP ? 'r' : '-', | |
125 | stx->stx_mode & S_IWGRP ? 'w' : '-', | |
126 | stx->stx_mode & S_IXGRP ? 'x' : '-', | |
127 | stx->stx_mode & S_IROTH ? 'r' : '-', | |
128 | stx->stx_mode & S_IWOTH ? 'w' : '-', | |
129 | stx->stx_mode & S_IXOTH ? 'x' : '-'); | |
130 | if (stx->stx_mask & STATX_UID) | |
131 | printf("Uid: %5d ", stx->stx_uid); | |
132 | if (stx->stx_mask & STATX_GID) | |
133 | printf("Gid: %5d\n", stx->stx_gid); | |
134 | ||
135 | if (stx->stx_mask & STATX_ATIME) | |
136 | print_time("Access: ", &stx->stx_atime); | |
137 | if (stx->stx_mask & STATX_MTIME) | |
138 | print_time("Modify: ", &stx->stx_mtime); | |
139 | if (stx->stx_mask & STATX_CTIME) | |
140 | print_time("Change: ", &stx->stx_ctime); | |
141 | if (stx->stx_mask & STATX_BTIME) | |
142 | print_time(" Birth: ", &stx->stx_btime); | |
143 | ||
3209f68b DH |
144 | if (stx->stx_attributes_mask) { |
145 | unsigned char bits, mbits; | |
a528d35e DH |
146 | int loop, byte; |
147 | ||
148 | static char attr_representation[64 + 1] = | |
149 | /* STATX_ATTR_ flags: */ | |
150 | "????????" /* 63-56 */ | |
151 | "????????" /* 55-48 */ | |
152 | "????????" /* 47-40 */ | |
153 | "????????" /* 39-32 */ | |
154 | "????????" /* 31-24 0x00000000-ff000000 */ | |
155 | "????????" /* 23-16 0x00000000-00ff0000 */ | |
156 | "???me???" /* 15- 8 0x00000000-0000ff00 */ | |
157 | "?dai?c??" /* 7- 0 0x00000000-000000ff */ | |
158 | ; | |
159 | ||
160 | printf("Attributes: %016llx (", stx->stx_attributes); | |
161 | for (byte = 64 - 8; byte >= 0; byte -= 8) { | |
162 | bits = stx->stx_attributes >> byte; | |
3209f68b | 163 | mbits = stx->stx_attributes_mask >> byte; |
a528d35e DH |
164 | for (loop = 7; loop >= 0; loop--) { |
165 | int bit = byte + loop; | |
166 | ||
3209f68b DH |
167 | if (!(mbits & 0x80)) |
168 | putchar('.'); /* Not supported */ | |
169 | else if (bits & 0x80) | |
a528d35e DH |
170 | putchar(attr_representation[63 - bit]); |
171 | else | |
3209f68b | 172 | putchar('-'); /* Not set */ |
a528d35e | 173 | bits <<= 1; |
3209f68b | 174 | mbits <<= 1; |
a528d35e DH |
175 | } |
176 | if (byte) | |
177 | putchar(' '); | |
178 | } | |
179 | printf(")\n"); | |
180 | } | |
181 | } | |
182 | ||
183 | static void dump_hex(unsigned long long *data, int from, int to) | |
184 | { | |
185 | unsigned offset, print_offset = 1, col = 0; | |
186 | ||
187 | from /= 8; | |
188 | to = (to + 7) / 8; | |
189 | ||
190 | for (offset = from; offset < to; offset++) { | |
191 | if (print_offset) { | |
192 | printf("%04x: ", offset * 8); | |
193 | print_offset = 0; | |
194 | } | |
195 | printf("%016llx", data[offset]); | |
196 | col++; | |
197 | if ((col & 3) == 0) { | |
198 | printf("\n"); | |
199 | print_offset = 1; | |
200 | } else { | |
201 | printf(" "); | |
202 | } | |
203 | } | |
204 | ||
205 | if (!print_offset) | |
206 | printf("\n"); | |
207 | } | |
208 | ||
209 | int main(int argc, char **argv) | |
210 | { | |
211 | struct statx stx; | |
212 | int ret, raw = 0, atflag = AT_SYMLINK_NOFOLLOW; | |
213 | ||
214 | unsigned int mask = STATX_ALL; | |
215 | ||
216 | for (argv++; *argv; argv++) { | |
217 | if (strcmp(*argv, "-F") == 0) { | |
218 | atflag &= ~AT_STATX_SYNC_TYPE; | |
219 | atflag |= AT_STATX_FORCE_SYNC; | |
220 | continue; | |
221 | } | |
222 | if (strcmp(*argv, "-D") == 0) { | |
223 | atflag &= ~AT_STATX_SYNC_TYPE; | |
224 | atflag |= AT_STATX_DONT_SYNC; | |
225 | continue; | |
226 | } | |
227 | if (strcmp(*argv, "-L") == 0) { | |
228 | atflag &= ~AT_SYMLINK_NOFOLLOW; | |
229 | continue; | |
230 | } | |
231 | if (strcmp(*argv, "-O") == 0) { | |
232 | mask &= ~STATX_BASIC_STATS; | |
233 | continue; | |
234 | } | |
235 | if (strcmp(*argv, "-A") == 0) { | |
236 | atflag |= AT_NO_AUTOMOUNT; | |
237 | continue; | |
238 | } | |
239 | if (strcmp(*argv, "-R") == 0) { | |
240 | raw = 1; | |
241 | continue; | |
242 | } | |
243 | ||
244 | memset(&stx, 0xbf, sizeof(stx)); | |
245 | ret = statx(AT_FDCWD, *argv, atflag, mask, &stx); | |
246 | printf("statx(%s) = %d\n", *argv, ret); | |
247 | if (ret < 0) { | |
248 | perror(*argv); | |
249 | exit(1); | |
250 | } | |
251 | ||
252 | if (raw) | |
253 | dump_hex((unsigned long long *)&stx, 0, sizeof(stx)); | |
254 | ||
255 | dump_statx(&stx); | |
256 | } | |
257 | return 0; | |
258 | } |