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959ef981 | 1 | // SPDX-License-Identifier: GPL-2.0 |
f91dde66 | 2 | /* |
da23017d NS |
3 | * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. |
4 | * All Rights Reserved. | |
f91dde66 NS |
5 | */ |
6 | ||
6b803e5a | 7 | #include "libxfs.h" |
fee68490 | 8 | #include "libfrog/fsgeom.h" |
f91dde66 NS |
9 | |
10 | int rtcp(char *, char *, int); | |
11 | int xfsrtextsize(char *path); | |
12 | ||
00ff2b10 | 13 | static int pflag; |
f91dde66 NS |
14 | char *progname; |
15 | ||
00ff2b10 | 16 | static void |
24e04791 | 17 | usage(void) |
f91dde66 | 18 | { |
30626ef6 | 19 | fprintf(stderr, _("%s [-e extsize] [-p] [-V] source target\n"), progname); |
f91dde66 NS |
20 | exit(2); |
21 | } | |
22 | ||
23 | int | |
24 | main(int argc, char **argv) | |
25 | { | |
0c2a7d46 | 26 | int c, i, r, errflg = 0; |
f594a0d1 | 27 | struct stat s2; |
f91dde66 NS |
28 | int extsize = - 1; |
29 | ||
30 | progname = basename(argv[0]); | |
9440d84d NS |
31 | setlocale(LC_ALL, ""); |
32 | bindtextdomain(PACKAGE, LOCALEDIR); | |
33 | textdomain(PACKAGE); | |
f91dde66 NS |
34 | |
35 | while ((c = getopt(argc, argv, "pe:V")) != EOF) { | |
36 | switch (c) { | |
37 | case 'e': | |
f91dde66 NS |
38 | extsize = atoi(optarg); |
39 | break; | |
40 | case 'p': | |
41 | pflag = 1; | |
42 | break; | |
43 | case 'V': | |
9440d84d | 44 | printf(_("%s version %s\n"), progname, VERSION); |
3d98fe63 | 45 | exit(0); |
f91dde66 NS |
46 | default: |
47 | errflg++; | |
48 | } | |
49 | } | |
50 | ||
51 | /* | |
52 | * Check for sufficient arguments or a usage error. | |
53 | */ | |
54 | argc -= optind; | |
55 | argv = &argv[optind]; | |
56 | ||
57 | if (argc < 2) { | |
9440d84d NS |
58 | fprintf(stderr, _("%s: must specify files to copy\n"), |
59 | progname); | |
f91dde66 NS |
60 | errflg++; |
61 | } | |
62 | ||
63 | if (errflg) | |
64 | usage(); | |
65 | ||
66 | /* | |
67 | * If there is more than a source and target, | |
68 | * the last argument (the target) must be a directory | |
69 | * which really exists. | |
70 | */ | |
71 | if (argc > 2) { | |
f594a0d1 FJ |
72 | if (stat(argv[argc-1], &s2) < 0) { |
73 | fprintf(stderr, _("%s: stat of %s failed\n"), | |
f91dde66 NS |
74 | progname, argv[argc-1]); |
75 | exit(2); | |
76 | } | |
77 | ||
78 | if (!S_ISDIR(s2.st_mode)) { | |
9440d84d NS |
79 | fprintf(stderr, |
80 | _("%s: final argument is not directory\n"), | |
f91dde66 NS |
81 | progname); |
82 | usage(); | |
83 | } | |
84 | } | |
85 | ||
86 | /* | |
87 | * Perform a multiple argument rtcp by | |
88 | * multiple invocations of rtcp(). | |
89 | */ | |
90 | r = 0; | |
91 | for (i = 0; i < argc-1; i++) | |
92 | r += rtcp(argv[i], argv[argc-1], extsize); | |
93 | ||
94 | /* | |
95 | * Show errors by nonzero exit code. | |
96 | */ | |
97 | exit(r?2:0); | |
98 | } | |
99 | ||
100 | int | |
101 | rtcp( char *source, char *target, int fextsize) | |
102 | { | |
103 | int fromfd, tofd, readct, writect, iosz, reopen; | |
104 | int remove = 0, rtextsize; | |
dfc130f3 | 105 | char *sp, *fbuf, *ptr; |
f91dde66 | 106 | char tbuf[ PATH_MAX ]; |
f594a0d1 | 107 | struct stat s1, s2; |
f91dde66 NS |
108 | struct fsxattr fsxattr; |
109 | struct dioattr dioattr; | |
110 | ||
111 | /* | |
112 | * While source or target have trailing /, remove them | |
113 | * unless only "/". | |
114 | */ | |
115 | sp = source + strlen(source); | |
116 | if (sp) { | |
117 | while (*--sp == '/' && sp > source) | |
118 | *sp = '\0'; | |
119 | } | |
120 | sp = target + strlen(target); | |
121 | if (sp) { | |
122 | while (*--sp == '/' && sp > target) | |
123 | *sp = '\0'; | |
124 | } | |
125 | ||
f594a0d1 FJ |
126 | if ( stat(source, &s1) ) { |
127 | fprintf(stderr, _("%s: failed stat on %s: %s\n"), | |
9440d84d | 128 | progname, source, strerror(errno)); |
f91dde66 NS |
129 | return( -1); |
130 | } | |
131 | ||
132 | /* | |
133 | * check for a realtime partition | |
134 | */ | |
2d9475a4 | 135 | snprintf(tbuf, sizeof(tbuf), "%s", target); |
f594a0d1 | 136 | if ( stat(target, &s2) ) { |
f91dde66 NS |
137 | if (!S_ISDIR(s2.st_mode)) { |
138 | /* take out target file name */ | |
139 | if ((ptr = strrchr(tbuf, '/')) != NULL) | |
140 | *ptr = '\0'; | |
141 | else | |
2d9475a4 | 142 | snprintf(tbuf, sizeof(tbuf), "."); |
dfc130f3 | 143 | } |
f91dde66 NS |
144 | } |
145 | ||
146 | if ( (rtextsize = xfsrtextsize( tbuf )) <= 0 ) { | |
9440d84d NS |
147 | fprintf(stderr, |
148 | _("%s: %s filesystem has no realtime partition\n"), | |
f91dde66 NS |
149 | progname, tbuf); |
150 | return( -1 ); | |
151 | } | |
152 | ||
153 | /* | |
154 | * check if target is a directory | |
155 | */ | |
2d9475a4 | 156 | snprintf(tbuf, sizeof(tbuf), "%s", target); |
f594a0d1 | 157 | if ( !stat(target, &s2) ) { |
f91dde66 | 158 | if (S_ISDIR(s2.st_mode)) { |
2d9475a4 NS |
159 | snprintf(tbuf, sizeof(tbuf), "%s/%s", target, |
160 | basename(source)); | |
dfc130f3 | 161 | } |
f91dde66 | 162 | } |
dfc130f3 | 163 | |
f594a0d1 | 164 | if ( stat(tbuf, &s2) ) { |
f91dde66 NS |
165 | /* |
166 | * create the file if it does not exist | |
167 | */ | |
168 | if ( (tofd = open(tbuf, O_RDWR|O_CREAT|O_DIRECT, 0666)) < 0 ) { | |
9440d84d NS |
169 | fprintf(stderr, _("%s: open of %s failed: %s\n"), |
170 | progname, tbuf, strerror(errno)); | |
f91dde66 NS |
171 | return( -1 ); |
172 | } | |
173 | remove = 1; | |
dfc130f3 | 174 | |
f91dde66 NS |
175 | /* |
176 | * mark the file as a realtime file | |
177 | */ | |
83f4b5ac | 178 | fsxattr.fsx_xflags = FS_XFLAG_REALTIME; |
f91dde66 NS |
179 | if (fextsize != -1 ) |
180 | fsxattr.fsx_extsize = fextsize; | |
181 | else | |
182 | fsxattr.fsx_extsize = 0; | |
183 | ||
83f4b5ac | 184 | if ( xfsctl(tbuf, tofd, FS_IOC_FSSETXATTR, &fsxattr) ) { |
9440d84d NS |
185 | fprintf(stderr, |
186 | _("%s: set attributes on %s failed: %s\n"), | |
187 | progname, tbuf, strerror(errno)); | |
f91dde66 NS |
188 | close( tofd ); |
189 | unlink( tbuf ); | |
190 | return( -1 ); | |
191 | } | |
192 | } else { | |
193 | /* | |
194 | * open existing file | |
195 | */ | |
196 | if ( (tofd = open(tbuf, O_RDWR|O_DIRECT)) < 0 ) { | |
9440d84d NS |
197 | fprintf(stderr, _("%s: open of %s failed: %s\n"), |
198 | progname, tbuf, strerror(errno)); | |
f91dde66 NS |
199 | return( -1 ); |
200 | } | |
dfc130f3 | 201 | |
83f4b5ac | 202 | if ( xfsctl(tbuf, tofd, FS_IOC_FSGETXATTR, &fsxattr) ) { |
9440d84d NS |
203 | fprintf(stderr, |
204 | _("%s: get attributes of %s failed: %s\n"), | |
205 | progname, tbuf, strerror(errno)); | |
f91dde66 NS |
206 | close( tofd ); |
207 | return( -1 ); | |
208 | } | |
209 | ||
210 | /* | |
211 | * check if the existing file is already a realtime file | |
212 | */ | |
83f4b5ac | 213 | if ( !(fsxattr.fsx_xflags & FS_XFLAG_REALTIME) ) { |
9440d84d | 214 | fprintf(stderr, _("%s: %s is not a realtime file.\n"), |
f91dde66 | 215 | progname, tbuf); |
11e06961 | 216 | close( tofd ); |
f91dde66 NS |
217 | return( -1 ); |
218 | } | |
dfc130f3 | 219 | |
f91dde66 NS |
220 | /* |
221 | * check for matching extent size | |
222 | */ | |
223 | if ( (fextsize != -1) && (fsxattr.fsx_extsize != fextsize) ) { | |
9440d84d NS |
224 | fprintf(stderr, _("%s: %s file extent size is %d, " |
225 | "instead of %d.\n"), | |
f91dde66 | 226 | progname, tbuf, fsxattr.fsx_extsize, fextsize); |
11e06961 | 227 | close( tofd ); |
f91dde66 NS |
228 | return( -1 ); |
229 | } | |
230 | } | |
231 | ||
232 | /* | |
233 | * open the source file | |
234 | */ | |
235 | reopen = 0; | |
236 | if ( (fromfd = open(source, O_RDONLY|O_DIRECT)) < 0 ) { | |
9440d84d NS |
237 | fprintf(stderr, _("%s: open of %s source failed: %s\n"), |
238 | progname, source, strerror(errno)); | |
f91dde66 NS |
239 | close( tofd ); |
240 | if (remove) | |
241 | unlink( tbuf ); | |
242 | return( -1 ); | |
243 | } | |
244 | ||
245 | fsxattr.fsx_xflags = 0; | |
246 | fsxattr.fsx_extsize = 0; | |
83f4b5ac | 247 | if ( xfsctl(source, fromfd, FS_IOC_FSGETXATTR, &fsxattr) ) { |
f91dde66 NS |
248 | reopen = 1; |
249 | } else { | |
83f4b5ac | 250 | if (! (fsxattr.fsx_xflags & FS_XFLAG_REALTIME) ){ |
9440d84d | 251 | fprintf(stderr, _("%s: %s is not a realtime file.\n"), |
f91dde66 NS |
252 | progname, source); |
253 | reopen = 1; | |
254 | } | |
255 | } | |
256 | ||
257 | if (reopen) { | |
258 | close( fromfd ); | |
259 | if ( (fromfd = open(source, O_RDONLY )) < 0 ) { | |
9440d84d NS |
260 | fprintf(stderr, _("%s: open of %s source failed: %s\n"), |
261 | progname, source, strerror(errno)); | |
f91dde66 NS |
262 | close( tofd ); |
263 | if (remove) | |
264 | unlink( tbuf ); | |
265 | return( -1 ); | |
266 | } | |
267 | } | |
268 | ||
269 | /* | |
270 | * get direct I/O parameters | |
271 | */ | |
93d9f139 | 272 | if ( xfsctl(tbuf, tofd, XFS_IOC_DIOINFO, &dioattr) ) { |
9440d84d NS |
273 | fprintf(stderr, |
274 | _("%s: couldn't get direct I/O information: %s\n"), | |
275 | progname, strerror(errno)); | |
f91dde66 NS |
276 | close( fromfd ); |
277 | close( tofd ); | |
dfc130f3 | 278 | if ( remove ) |
f91dde66 NS |
279 | unlink( tbuf ); |
280 | return( -1 ); | |
281 | } | |
282 | ||
283 | if ( rtextsize % dioattr.d_miniosz ) { | |
9440d84d | 284 | fprintf(stderr, _("%s: extent size %d not a multiple of %d.\n"), |
f91dde66 NS |
285 | progname, rtextsize, dioattr.d_miniosz); |
286 | close( fromfd ); | |
287 | close( tofd ); | |
288 | if ( remove ) | |
289 | unlink( tbuf ); | |
290 | return( -1 ); | |
291 | } | |
292 | ||
293 | /* | |
294 | * Check that the source file size is a multiple of the | |
295 | * file system block size. | |
296 | */ | |
297 | if ( s1.st_size % dioattr.d_miniosz ) { | |
9440d84d | 298 | printf(_("The size of %s is not a multiple of %d.\n"), |
f91dde66 NS |
299 | source, dioattr.d_miniosz); |
300 | if ( pflag ) { | |
9440d84d | 301 | printf(_("%s will be padded to %lld bytes.\n"), |
e6c5396e | 302 | tbuf, (long long) |
f91dde66 NS |
303 | (((s1.st_size / dioattr.d_miniosz) + 1) * |
304 | dioattr.d_miniosz) ); | |
dfc130f3 | 305 | |
f91dde66 | 306 | } else { |
9440d84d NS |
307 | printf(_("Use the -p option to pad %s to a " |
308 | "size which is a multiple of %d bytes.\n"), | |
f91dde66 NS |
309 | tbuf, dioattr.d_miniosz); |
310 | close( fromfd ); | |
311 | close( tofd ); | |
312 | if ( remove ) | |
313 | unlink( tbuf ); | |
314 | return( -1 ); | |
315 | } | |
316 | } | |
317 | ||
318 | iosz = dioattr.d_miniosz; | |
319 | fbuf = memalign( dioattr.d_mem, iosz); | |
dab9b8d6 | 320 | memset(fbuf, 0, iosz); |
f91dde66 NS |
321 | |
322 | /* | |
323 | * read the entire source file | |
324 | */ | |
325 | while ( ( readct = read( fromfd, fbuf, iosz) ) != 0 ) { | |
326 | /* | |
327 | * if there is a read error - break | |
328 | */ | |
329 | if (readct < 0 ) { | |
330 | break; | |
331 | } | |
332 | ||
333 | /* | |
334 | * if there is a short read, pad to a block boundary | |
dfc130f3 | 335 | */ |
f91dde66 NS |
336 | if ( readct != iosz ) { |
337 | if ( (readct % dioattr.d_miniosz) != 0 ) { | |
338 | readct = ( (readct/dioattr.d_miniosz) + 1 ) * | |
339 | dioattr.d_miniosz; | |
340 | } | |
341 | } | |
342 | ||
343 | /* | |
dfc130f3 | 344 | * write to target file |
f91dde66 NS |
345 | */ |
346 | writect = write( tofd, fbuf, readct); | |
347 | ||
348 | if ( writect != readct ) { | |
9440d84d NS |
349 | fprintf(stderr, _("%s: write error: %s\n"), |
350 | progname, strerror(errno)); | |
f91dde66 NS |
351 | close(fromfd); |
352 | close(tofd); | |
353 | free( fbuf ); | |
354 | return( -1 ); | |
355 | } | |
356 | ||
dab9b8d6 | 357 | memset( fbuf, 0, iosz); |
f91dde66 NS |
358 | } |
359 | ||
360 | close(fromfd); | |
361 | close(tofd); | |
362 | free( fbuf ); | |
363 | return( 0 ); | |
364 | } | |
365 | ||
366 | /* | |
dfc130f3 | 367 | * Determine the realtime extent size of the XFS file system |
f91dde66 NS |
368 | */ |
369 | int | |
370 | xfsrtextsize( char *path) | |
371 | { | |
9612817d DW |
372 | struct xfs_fsop_geom geo; |
373 | int fd, rval, rtextsize; | |
f91dde66 NS |
374 | |
375 | fd = open( path, O_RDONLY ); | |
376 | if ( fd < 0 ) { | |
9440d84d NS |
377 | fprintf(stderr, _("%s: could not open %s: %s\n"), |
378 | progname, path, strerror(errno)); | |
f91dde66 NS |
379 | return -1; |
380 | } | |
9612817d | 381 | rval = xfrog_geometry(fd, &geo); |
f91dde66 | 382 | close(fd); |
9612817d | 383 | if (rval) |
9d77aadd | 384 | return -1; |
f91dde66 NS |
385 | |
386 | rtextsize = geo.rtextsize * geo.blocksize; | |
387 | ||
f91dde66 NS |
388 | return rtextsize; |
389 | } |