Introduce --global-summary-format.
[adu.git] / select.c
1 /*
2 * Copyright (C) 2008 Andre Noll <maan@systemlinux.org>
3 *
4 * Licensed under the GPL v2. For licencing details see COPYING.
5 */
6
7 /** \file select.c The select mode of adu. */
8
9 #include <dirent.h> /* readdir() */
10 #include "format.h"
11 #include "adu.h"
12 #include "gcc-compat.h"
13 #include "cmdline.h"
14 #include "fd.h"
15 #include "string.h"
16 #include "error.h"
17 #include "portable_io.h"
18
19 /** Global dir count. */
20 static uint64_t num_dirs;
21 /** Global files count. */
22 static uint64_t num_files;
23 /** Global bytes count. */
24 static uint64_t num_bytes;
25
26
27 /** The decimal representation of an uint64_t never exceeds that size. */
28 #define FORMATED_VALUE_SIZE 25
29
30 #define GLOBAL_SUMMARY_ATOMS \
31 ATOM(dirs, COUNT) \
32 ATOM(files, COUNT) \
33 ATOM(size, SIZE)
34
35 #define ATOM(x, y) { .name = #x, .type = AT_ ## y},
36 struct atom global_summary_atoms[] = {
37 GLOBAL_SUMMARY_ATOMS
38 {.name = NULL}
39 };
40 #undef ATOM
41 #define ATOM(x, y) gsa_ ## x,
42 enum global_summary_atoms {GLOBAL_SUMMARY_ATOMS};
43 #undef ATOM
44
45 #define USER_SUMMARY_ATOMS \
46 ATOM(pw_name, STRING) \
47 ATOM(uid, ID) \
48 ATOM(dirs, COUNT) \
49 ATOM(files, COUNT) \
50 ATOM(size, SIZE)
51
52 #define ATOM(x, y) { .name = #x, .type = AT_ ## y},
53 struct atom user_summary_atoms[] = {
54 USER_SUMMARY_ATOMS
55 {.name = NULL}
56 };
57 #undef ATOM
58 #define ATOM(x, y) usa_ ## x,
59 enum user_summary_atoms {USER_SUMMARY_ATOMS};
60 #undef ATOM
61
62
63 /* these get filled in by the select command. */
64 static char count_unit_buf[4] = "( )", size_unit_buf[4] = "( )";
65
66 enum global_stats_flags {
67 GSF_PRINT_DIRNAME = 1,
68 GSF_PRINT_BYTES = 2,
69 GSF_PRINT_FILES = 4,
70 GSF_COMPUTE_SUMMARY = 8,
71 };
72
73 struct global_stats_info {
74 uint32_t count;
75 int ret;
76 int osl_errno;
77 enum global_stats_flags flags;
78 };
79
80 enum user_stats_flags {
81 USF_PRINT_DIRNAME = 1,
82 USF_PRINT_BYTES = 2,
83 USF_PRINT_FILES = 4,
84 USF_COMPUTE_SUMMARY = 8,
85 };
86
87 struct user_stats_info {
88 uint32_t count;
89 enum user_stats_flags flags;
90 int ret;
91 int osl_errno;
92 struct user_info *ui;
93 };
94
95 static const uint64_t size_unit_divisors[] = {
96 [size_unit_arg_b] = 1ULL,
97 [size_unit_arg_k] = 1024ULL,
98 [size_unit_arg_m] = 1024ULL * 1024ULL,
99 [size_unit_arg_g] = 1024ULL * 1024ULL * 1024ULL,
100 [size_unit_arg_t] = 1024ULL * 1024ULL * 1024ULL * 1024ULL,
101 };
102
103 static const uint64_t count_unit_divisors[] = {
104
105 [count_unit_arg_n] = 1ULL,
106 [count_unit_arg_k] = 1000ULL,
107 [count_unit_arg_m] = 1000ULL * 1000ULL,
108 [count_unit_arg_g] = 1000ULL * 1000ULL * 1000ULL,
109 [count_unit_arg_t] = 1000ULL * 1000ULL * 1000ULL * 1000ULL,
110 };
111
112 static const char size_unit_abbrevs[] = " BKMGT";
113 static const char count_unit_abbrevs[] = " kmgt";
114 static enum enum_size_unit format_size_value(enum enum_size_unit unit,
115 uint64_t value, int print_unit, char *result)
116 {
117 enum enum_size_unit u = unit;
118 char unit_buf[2] = "\0\0";
119
120 if (unit == size_unit_arg_h) /* human readable */
121 for (u = size_unit_arg_b; u < size_unit_arg_t &&
122 value > size_unit_divisors[u + 1]; u++)
123 ; /* nothing */
124 if (print_unit)
125 unit_buf[0] = size_unit_abbrevs[u];
126 sprintf(result, "%llu%s",
127 (long long unsigned)value / size_unit_divisors[u], unit_buf);
128 return u;
129 }
130
131 static enum enum_count_unit format_count_value(enum enum_count_unit unit,
132 uint64_t value, int print_unit, char *result)
133 {
134 enum enum_count_unit u = unit;
135 char unit_buf[2] = "\0\0";
136
137 if (unit == count_unit_arg_h) /* human readable */
138 for (u = count_unit_arg_n; u < count_unit_arg_t &&
139 value > count_unit_divisors[u + 1]; u++)
140 ; /* nothing */
141 if (print_unit)
142 unit_buf[0] = count_unit_abbrevs[u];
143 sprintf(result, "%llu%s",
144 (long long unsigned)value / count_unit_divisors[u], unit_buf);
145 return u;
146 }
147
148 static FILE *output_file;
149
150 __printf_1_2 static int output(const char const *fmt, ...)
151 {
152 va_list argp;
153 int ret;
154
155 va_start(argp, fmt);
156 ret = vfprintf(output_file, fmt, argp);
157 va_end(argp);
158 return ret < 0? -E_OUTPUT : 1;
159 }
160
161 static int get_dir_name_by_number(uint64_t *dirnum, char **name)
162 {
163 char *result = NULL, *tmp;
164 struct osl_row *row;
165 uint64_t val = *dirnum;
166 struct osl_object obj;
167 int ret;
168 char *pfx;
169
170 again:
171 obj.data = &val;
172 obj.size = sizeof(val);
173 ret = osl(osl_get_row(dir_table, DT_NUM, &obj, &row));
174 if (ret < 0)
175 goto out;
176 ret = osl(osl_get_object(dir_table, row, DT_PARENT_NUM, &obj));
177 if (ret < 0)
178 goto out;
179 val = *(uint64_t *)obj.data;
180 ret = osl(osl_get_object(dir_table, row, DT_NAME, &obj));
181 if (ret < 0)
182 goto out;
183 pfx = (select_conf.print_base_dir_given || val)? (char *)obj.data : ".";
184 tmp = make_message("%s/%s", pfx, result? result : "");
185 free(result);
186 result = tmp;
187 if (val)
188 goto again;
189 out:
190 if (ret < 0) {
191 free(result);
192 *name = NULL;
193 } else {
194 assert(result);
195 *name = result;
196 }
197 return ret;
198 }
199
200 static int get_dir_name_of_row(struct osl_row *dir_table_row, char **name)
201 {
202 struct osl_object obj;
203 int ret;
204
205 *name = NULL;
206 ret = osl(osl_get_object(dir_table, dir_table_row, DT_NUM, &obj));
207 if (ret < 0)
208 return ret;
209 return get_dir_name_by_number((uint64_t *)obj.data, name);
210 }
211
212 static int user_stats_loop_function(struct osl_row *row, void *data)
213 {
214 struct user_stats_info *usi = data;
215 struct osl_object obj;
216 int ret, summary = usi->flags & GSF_COMPUTE_SUMMARY;
217 char formated_value[FORMATED_VALUE_SIZE];
218
219 check_signals();
220 if (!usi->count && !summary) {
221 ret = -E_LOOP_COMPLETE;
222 goto err;
223 }
224 if (summary || (usi->count && (usi->flags & USF_PRINT_FILES))) {
225 uint64_t files;
226 ret = osl(osl_get_object(usi->ui->table, row, UT_FILES, &obj));
227 if (ret < 0)
228 goto err;
229 files = *(uint64_t *)obj.data;
230 if (usi->count && (usi->flags & USF_PRINT_FILES)) {
231 format_count_value(select_conf.count_unit_arg, files,
232 select_conf.count_unit_arg == count_unit_arg_h,
233 formated_value);
234 ret = output("\t%s%s", formated_value,
235 (usi->flags & (USF_PRINT_BYTES | USF_PRINT_DIRNAME))?
236 "\t" : "\n");
237 if (ret < 0)
238 goto err;
239 }
240 if (summary)
241 usi->ui->files += files;
242 }
243 if (summary || (usi->count && (usi->flags & USF_PRINT_BYTES))) {
244 uint64_t bytes;
245 ret = osl(osl_get_object(usi->ui->table, row, UT_BYTES, &obj));
246 if (ret < 0)
247 goto err;
248 bytes = *(uint64_t *)obj.data;
249 if (usi->count && (usi->flags & USF_PRINT_BYTES)) {
250 format_size_value(select_conf.size_unit_arg, bytes,
251 select_conf.size_unit_arg == size_unit_arg_h,
252 formated_value);
253 ret = output("%s%s%s",
254 (usi->flags & USF_PRINT_FILES)? "" : "\t",
255 formated_value,
256 usi->flags & USF_PRINT_DIRNAME? "\t" : "\n"
257 );
258 if (ret < 0)
259 goto err;
260 }
261 if (summary) {
262 usi->ui->bytes += bytes;
263 usi->ui->dirs++;
264 }
265
266 }
267 if (usi->count && (usi->flags & USF_PRINT_DIRNAME)) {
268 char *dirname;
269 ret = osl(osl_get_object(usi->ui->table, row, UT_DIR_NUM, &obj));
270 if (ret < 0)
271 goto err;
272 ret = get_dir_name_by_number((uint64_t *)obj.data, &dirname);
273 if (ret < 0)
274 goto err;
275 ret = output("%s%s\n",
276 (usi->flags & (USF_PRINT_BYTES | USF_PRINT_FILES))? "" : "\t",
277 dirname);
278 free(dirname);
279 if (ret < 0)
280 goto err;
281 }
282 if (usi->count > 0)
283 usi->count--;
284 return 1;
285 err:
286 usi->ret = ret;
287 usi->osl_errno = (ret == -E_OSL)? osl_errno : 0;
288 return -1;
289 }
290
291 static int global_stats_loop_function(struct osl_row *row, void *data)
292 {
293 struct global_stats_info *gsi = data;
294 struct osl_object obj;
295 char *dirname, formated_value[FORMATED_VALUE_SIZE];
296 int ret, summary = gsi->flags & GSF_COMPUTE_SUMMARY;
297
298 check_signals();
299 if (!gsi->count && !summary) {
300 ret = -E_LOOP_COMPLETE;
301 goto err;
302 }
303 if (summary || (gsi->count && (gsi->flags & GSF_PRINT_FILES))) {
304 uint64_t files;
305 ret = osl(osl_get_object(dir_table, row, DT_FILES, &obj));
306 if (ret < 0)
307 goto err;
308 files = *(uint64_t *)obj.data;
309 if (gsi->count && (gsi->flags & GSF_PRINT_FILES)) {
310 format_count_value(select_conf.count_unit_arg, files,
311 select_conf.count_unit_arg == count_unit_arg_h,
312 formated_value);
313 ret = output("\t%s%s", formated_value,
314 (gsi->flags & (GSF_PRINT_BYTES | GSF_PRINT_DIRNAME))?
315 "\t" : "\n");
316 if (ret < 0)
317 goto err;
318 }
319 if (summary)
320 num_files += files;
321 }
322 if (summary || (gsi->count && (gsi->flags & GSF_PRINT_BYTES))) {
323 uint64_t bytes;
324 ret = osl(osl_get_object(dir_table, row, DT_BYTES, &obj));
325 if (ret < 0)
326 goto err;
327 bytes = *(uint64_t *)obj.data;
328 if (gsi->count && (gsi->flags & GSF_PRINT_BYTES)) {
329 format_size_value(select_conf.size_unit_arg, bytes,
330 select_conf.size_unit_arg == size_unit_arg_h,
331 formated_value);
332 ret = output("%s%s%s",
333 (gsi->flags & GSF_PRINT_FILES)? "" : "\t",
334 formated_value,
335 (gsi->flags & GSF_PRINT_DIRNAME)? "\t" : "\n"
336 );
337 if (ret < 0)
338 goto err;
339 }
340 if (summary) {
341 num_bytes += bytes;
342 num_dirs++;
343 }
344 }
345 if (gsi->count && (gsi->flags & GSF_PRINT_DIRNAME)) {
346 ret = get_dir_name_of_row(row, &dirname);
347 if (ret < 0)
348 goto err;
349 ret = output("%s%s\n",
350 (gsi->flags & (GSF_PRINT_BYTES | GSF_PRINT_FILES))? "" : "\t",
351 dirname);
352 free(dirname);
353 if (ret < 0)
354 goto err;
355 }
356 if (gsi->count > 0)
357 gsi->count--;
358 return 1;
359 err:
360 gsi->ret = ret;
361 gsi->osl_errno = (ret == -E_OSL)? osl_errno : 0;
362 return -1;
363 }
364
365 static int check_loop_return(int ret, int loop_ret, int loop_osl_errno)
366 {
367 if (ret >= 0)
368 return ret;
369 assert(ret == -E_OSL);
370 if (osl_errno != E_OSL_LOOP)
371 /* error not caused by loop function returning negative. */
372 return ret;
373 assert(loop_ret < 0);
374 if (loop_ret == -E_LOOP_COMPLETE) /* no error */
375 return 1;
376 if (loop_ret == -E_OSL) { /* osl error in loop function */
377 assert(loop_osl_errno);
378 osl_errno = loop_osl_errno;
379 }
380 return loop_ret;
381 }
382
383 static int adu_loop_reverse(struct osl_table *t, unsigned col_num, void *private_data,
384 osl_rbtree_loop_func *func, int *loop_ret, int *loop_osl_errno)
385 {
386 int ret = osl(osl_rbtree_loop_reverse(t, col_num, private_data, func));
387 return check_loop_return(ret, *loop_ret, *loop_osl_errno);
388 }
389
390 static int print_global_summary(struct format_info *fi)
391 {
392 int ret;
393 char *buf;
394 union atom_value values[] = {
395 [gsa_dirs] = {.num_value = (long long unsigned)num_dirs},
396 [gsa_files] = {.num_value = (long long unsigned)num_files},
397 [gsa_size] = {.num_value = (long long unsigned)num_bytes}
398 };
399
400 if (select_conf.no_global_summary_given)
401 return 1;
402 if (!select_conf.no_headers_given) {
403 ret = output("Global summary\n");
404 if (ret < 0)
405 return ret;
406 }
407 buf = format_items(fi, values);
408 ret = output("%s", buf);
409 free(buf);
410 return ret;
411 }
412
413 static int print_user_summary_line(struct user_info *ui, __a_unused void *data)
414 {
415 struct format_info *fi = data;
416 union atom_value values[] = {
417 [usa_pw_name] = {.string_value = ui->pw_name?
418 ui->pw_name : "?"},
419 [usa_uid] = {.num_value = (long long unsigned)ui->uid},
420 [usa_dirs] = {.num_value = (long long unsigned)ui->dirs},
421 [usa_files] = {.num_value = (long long unsigned)ui->files},
422 [usa_size] = {.num_value = (long long unsigned)ui->bytes}
423 };
424 char *buf = format_items(fi, values);
425 int ret = output("%s", buf);
426
427 free(buf);
428 return ret;
429 }
430
431 static int name_comp(const void *a, const void *b)
432 {
433 char *x = ((struct user_info *)a)->pw_name;
434 char *y = ((struct user_info *)b)->pw_name;
435
436 if (!x)
437 return 1;
438 if (!y)
439 return -1;
440 return strcmp(x, y);
441 }
442
443 static int uid_comp(const void *a, const void *b)
444 {
445 return -NUM_COMPARE(((struct user_info *)a)->uid,
446 ((struct user_info *)b)->uid);
447 }
448
449 static int dir_count_comp(const void *a, const void *b)
450 {
451 return NUM_COMPARE(((struct user_info *)a)->dirs,
452 ((struct user_info *)b)->dirs);
453 }
454
455 static int file_count_comp(const void *a, const void *b)
456 {
457 return NUM_COMPARE(((struct user_info *)a)->files,
458 ((struct user_info *)b)->files);
459 }
460
461 static int size_comp(const void *a, const void *b)
462 {
463 return NUM_COMPARE(((struct user_info *)a)->bytes,
464 ((struct user_info *)b)->bytes);
465 }
466
467 /*
468 * The comparators for sorting the user summary.
469 *
470 * This is an array of pointers to functions taking two constant void *
471 * pointers and returning an int.
472 */
473 static int (*summary_comparators[])(const void *, const void *) = {
474 [user_summary_sort_arg_name] = name_comp,
475 [user_summary_sort_arg_uid] = uid_comp,
476 [user_summary_sort_arg_dir_count] = dir_count_comp,
477 [user_summary_sort_arg_file_count] = file_count_comp,
478 [user_summary_sort_arg_size] = size_comp,
479 };
480
481 static int print_user_summary(struct format_info *fi)
482 {
483 if (select_conf.no_user_summary_given)
484 return 1;
485 if (!select_conf.no_headers_given) {
486 int ret = output("User summary\n");
487 if (ret < 0)
488 return ret;
489 }
490 sort_hash_table(summary_comparators[select_conf.user_summary_sort_arg]);
491 return for_each_admissible_user(print_user_summary_line, fi);
492 }
493
494 static int print_user_list(struct user_info *ui, __a_unused void *data)
495 {
496 int ret;
497 struct user_stats_info usi;
498 enum enum_user_list ula = select_conf.user_list_arg;
499 int print_size_list = (ula == user_list_arg_size
500 || ula == user_list_arg_both);
501
502 if (print_size_list) {
503 usi.count = select_conf.limit_arg;
504 usi.ui = ui;
505 usi.flags = USF_PRINT_DIRNAME | USF_PRINT_BYTES | USF_COMPUTE_SUMMARY;
506 if (!select_conf.no_headers_given) {
507 ret = output("%s (uid %u), by size%s:\n",
508 ui->pw_name? ui->pw_name : "?", (unsigned)ui->uid,
509 size_unit_buf);
510 if (ret < 0)
511 return ret;
512 }
513 ret = adu_loop_reverse(ui->table, UT_BYTES, &usi, user_stats_loop_function,
514 &usi.ret, &usi.osl_errno);
515 if (ret < 0)
516 return ret;
517 ret = output("\n");
518 if (ret < 0)
519 return ret;
520 }
521 if (ula == user_list_arg_file_count || ula == user_list_arg_both) {
522 if (!select_conf.no_headers_given) {
523 ret = output("%s (uid %u), by file count%s:\n",
524 ui->pw_name? ui->pw_name : "?", (unsigned)ui->uid,
525 count_unit_buf);
526 if (ret < 0)
527 return ret;
528 }
529 usi.count = select_conf.limit_arg,
530 usi.ui = ui;
531 usi.flags = USF_PRINT_DIRNAME | USF_PRINT_FILES;
532 ret = adu_loop_reverse(ui->table, UT_FILES, &usi, user_stats_loop_function,
533 &usi.ret, &usi.osl_errno);
534 if (ret < 0)
535 return ret;
536 ret = output("\n");
537 if (ret < 0)
538 return ret;
539 }
540 if (ula == user_list_arg_none && !select_conf.no_user_summary_given) {
541 usi.count = select_conf.limit_arg;
542 usi.ui = ui;
543 usi.flags = USF_COMPUTE_SUMMARY;
544 ret = adu_loop_reverse(ui->table, UT_FILES, &usi, user_stats_loop_function,
545 &usi.ret, &usi.osl_errno);
546 if (ret < 0)
547 return ret;
548 }
549 return 1;
550 }
551
552 static int print_user_lists(void)
553 {
554 return for_each_admissible_user(print_user_list, NULL);
555 }
556
557 static int print_global_lists(void)
558 {
559 struct global_stats_info gsi;
560 int ret;
561 enum enum_global_list gla = select_conf.global_list_arg;
562 int print_size_list = (gla == global_list_arg_size
563 || gla == global_list_arg_both);
564
565 if (print_size_list) {
566 gsi.count = select_conf.limit_arg;
567 gsi.flags = GSF_PRINT_DIRNAME | GSF_PRINT_BYTES | GSF_COMPUTE_SUMMARY;
568 if (!select_conf.no_headers_given) {
569 ret = output("By size%s:\n", size_unit_buf);
570 if (ret < 0)
571 return ret;
572 }
573 ret = adu_loop_reverse(dir_table, DT_BYTES, &gsi,
574 global_stats_loop_function, &gsi.ret, &gsi.osl_errno);
575 if (ret < 0)
576 return ret;
577 ret = output("\n");
578 if (ret < 0)
579 return ret;
580 }
581 if (gla == global_list_arg_file_count || gla == global_list_arg_both) {
582 gsi.count = select_conf.limit_arg;
583 gsi.flags = GSF_PRINT_DIRNAME | GSF_PRINT_FILES;
584 if (!print_size_list)
585 gsi.flags |= GSF_COMPUTE_SUMMARY;
586 if (!select_conf.no_headers_given) {
587 ret = output("By file count%s:\n", count_unit_buf);
588 if (ret < 0)
589 return ret;
590 }
591 ret = adu_loop_reverse(dir_table, DT_FILES, &gsi,
592 global_stats_loop_function, &gsi.ret, &gsi.osl_errno);
593 if (ret < 0)
594 return ret;
595 ret = output("\n");
596 if (ret < 0)
597 return ret;
598 }
599 if (gla == global_list_arg_none && !select_conf.no_global_summary_given) {
600 /* must compute summary */
601 gsi.count = select_conf.limit_arg;
602 gsi.flags = GSF_COMPUTE_SUMMARY;
603 ret = adu_loop_reverse(dir_table, DT_FILES, &gsi,
604 global_stats_loop_function, &gsi.ret, &gsi.osl_errno);
605 if (ret < 0)
606 return ret;
607 }
608 return 1;
609 }
610
611 static int print_statistics(struct select_format_info *sli)
612 {
613 int ret;
614
615 ret = print_global_lists();
616 if (ret < 0)
617 return ret;
618 ret = print_global_summary(sli->global_summary_fi);
619 free_format_info(sli->global_summary_fi);
620 if (ret < 0)
621 return ret;
622 ret = print_user_lists();
623 if (ret < 0)
624 return ret;
625 ret = print_user_summary(sli->user_summary_fi);
626 free_format_info(sli->user_summary_fi);
627 if (ret < 0)
628 return ret;
629 return 1;
630 }
631
632 static int read_uid_file(struct uid_range *admissible_uids)
633 {
634 size_t size;
635 uint32_t n;
636 char *filename = get_uid_list_name(), *map;
637 int ret = mmap_full_file(filename, O_RDONLY, (void **)&map, &size, NULL);
638 unsigned bits;
639
640 if (ret < 0) {
641 INFO_LOG("failed to map %s\n", filename);
642 free(filename);
643 return ret;
644 }
645 num_uids = size / 4;
646 INFO_LOG("found %u uids in %s\n", (unsigned)num_uids, filename);
647 free(filename);
648 /*
649 * Compute number of hash table bits. The hash table size must be a
650 * power of two and larger than the number of uids.
651 */
652 bits = 2;
653 while (1 << bits < num_uids)
654 bits++;
655 create_hash_table(bits);
656 for (n = 0; n < num_uids; n++) {
657 uint32_t uid = read_u32(map + n * sizeof(uid));
658 ret = search_uid(uid, admissible_uids, OPEN_USER_TABLE, NULL);
659 if (ret < 0)
660 goto out;
661 }
662 out:
663 adu_munmap(map, size);
664 return ret;
665 }
666
667 int run_select_query(struct uid_range *admissible_uids,
668 struct select_format_info *sfi)
669 {
670 int ret;
671
672 if (select_conf.output_given && strcmp(select_conf.output_arg, "-")) {
673 output_file = fopen(select_conf.output_arg, "w");
674 if (!output_file)
675 return -ERRNO_TO_ERROR(errno);
676 } else
677 output_file = stdout;
678
679 if (select_conf.count_unit_arg != count_unit_arg_h)
680 count_unit_buf[1] = count_unit_abbrevs[select_conf.count_unit_arg];
681 else
682 count_unit_buf[0] = '\0';
683 if (select_conf.size_unit_arg != size_unit_arg_h)
684 size_unit_buf[1] = size_unit_abbrevs[select_conf.size_unit_arg];
685 else
686 size_unit_buf[0] = '\0';
687
688 ret = open_dir_table(0);
689 if (ret < 0)
690 goto out;
691 check_signals();
692 ret = read_uid_file(admissible_uids);
693 if (ret < 0)
694 goto out;
695 check_signals();
696 ret = print_statistics(sfi);
697 out:
698 close_all_tables();
699 if (output_file != stdout)
700 fclose(output_file);
701 return ret;
702 }
703
704 /* return: < 0: error, >0: OK, == 0: help given */
705 int parse_select_options(char *string, struct select_cmdline_parser_params *params,
706 struct uid_range **admissible_uids, struct select_format_info *sfi)
707 {
708 int ret;
709 const char **line;
710
711 if (conf.select_options_given) {
712 int argc;
713 char **argv;
714
715 ret = create_argv(string, &argv);
716 if (ret < 0)
717 return ret;
718 argc = ret;
719 ret = select_cmdline_parser_ext(argc, argv, &select_conf, params);
720 free_argv(argv);
721 if (ret)
722 return -E_SYNTAX;
723 if (select_conf.help_given || select_conf.detailed_help_given)
724 goto help;
725
726 }
727 ret = parse_uid_arg(select_conf.uid_arg, admissible_uids);
728 if (ret < 0)
729 return ret;
730 ret = parse_format_string(select_conf.user_summary_format_arg,
731 user_summary_atoms, &sfi->user_summary_fi);
732 if (ret < 0)
733 return ret;
734 ret = parse_format_string(select_conf.global_summary_format_arg,
735 global_summary_atoms, &sfi->global_summary_fi);
736 if (ret < 0) {
737 free_format_info(sfi->user_summary_fi);
738 return ret;
739 }
740 return 1;
741 help:
742 line = select_conf.detailed_help_given?
743 select_args_info_detailed_help : select_args_info_help;
744 if (!output_file)
745 output_file = stdout;
746 for (; *line; line++) {
747 ret = output("%s\n", *line);
748 if (ret < 0)
749 return ret;
750 }
751 return 0;
752 }
753
754 int com_select(void)
755 {
756 struct uid_range *admissible_uids = NULL;
757 struct select_format_info sfi;
758 int ret;
759 struct select_cmdline_parser_params params = {
760 .override = 1,
761 .initialize = 1,
762 .check_required = 1,
763 .check_ambiguity = 1,
764 .print_errors = 1
765 };
766
767 select_cmdline_parser_init(&select_conf);
768 ret = parse_select_options(conf.select_options_arg, &params,
769 &admissible_uids, &sfi);
770 if (ret <= 0) /* do not run query if help was given */
771 return ret;
772 return run_select_query(admissible_uids, &sfi);
773 }