source: MondoRescue/branches/3.3/mondo/src/common/libmondo-files.c@ 3861

Last change on this file since 3861 was 3861, checked in by Bruno Cornec, 2 months ago

Fix proto for mvaddstr_and_log_it and does_file_exist
  • Property svn:keywords set to Id
File size: 31.5 KB
Line 
1/* file manipulation
2 $Id: libmondo-files.c 3861 2024-03-07 10:01:16Z bruno $
3*/
4
5/**
6 * @file
7 * Functions to manipulate files.
8 */
9
10
11#include "my-stuff.h"
12#include "mr_mem.h"
13#include "mr_file.h"
14#include "mondostructures.h"
15#include "libmondo-files.h"
16
17#include "lib-common-externs.h"
18
19#include "libmondo-tools-EXT.h"
20#include "libmondo-gui-EXT.h"
21#include "libmondo-devices-EXT.h"
22#include "libmondo-fork-EXT.h"
23#include "libmondo-string-EXT.h"
24
25/*@unused@*/
26//static char cvsid[] = "$Id: libmondo-files.c 3861 2024-03-07 10:01:16Z bruno $";
27
28extern char err_log_lines[NOOF_ERR_LINES][MAX_STR_LEN];
29
30extern char *mr_popup_and_get_string(const char *, const char *, const char *);
31
32extern int g_currentY;
33extern char *g_mondo_home;
34
35extern bool g_text_mode;
36
37/* Reference to global bkpinfo */
38extern struct s_bkpinfo *bkpinfo;
39
40/**
41 * @addtogroup fileGroup
42 * @{
43 */
44/**
45 * Get an md5 checksum of the specified file.
46 * @param filename The file to checksum.
47 * @return The 32-character ASCII representation of the 128-bit checksum.
48 * @note The returned string points to static storage that will be overwritten with each call.
49 */
50char *calc_checksum_of_file(char *filename)
51{
52 /*@ buffers ***************************************************** */
53 static char output[MAX_STR_LEN];
54 char *command = NULL;
55
56 /*@ pointers **************************************************** */
57 char *p = NULL;
58 char *q;
59 FILE *fin;
60
61 /*@ initialize pointers ***************************************** */
62
63 p = output;
64
65 /*@************************************************************** */
66
67 assert_string_is_neither_NULL_nor_zerolength(filename);
68 if (does_file_exist(filename)) {
69 mr_asprintf(command, "md5sum \"%s\"", filename);
70 fin = popen(command, "r");
71 if (fin) {
72 q = fgets(output, MAX_STR_LEN, fin);
73 if (!q) {
74 // FIXME
75 }
76 q = strchr(output, ' ');
77 paranoid_pclose(fin);
78 }
79 mr_free(command);
80 } else {
81 log_it("File '%s' not found; cannot calc checksum", filename);
82 }
83 if (p) {
84 *p = '\0';
85 }
86 return (output);
87}
88
89
90/**
91 * Get a not-quite-unique representation of some of the file's @c stat properties.
92 * The returned string has the form <tt>size-mtime-ctime</tt>.
93 * @param curr_fname The file to generate the "checksum" for.
94 * @return The "checksum".
95 * @note The returned string points to static storage that will be overwritten with each call.
96 */
97char *calc_file_ugly_minichecksum(char *curr_fname)
98{
99
100 /*@ buffers ***************************************************** */
101 static char curr_cksum[1000];
102
103 /*@ pointers **************************************************** */
104
105 /*@ structures ************************************************** */
106 struct stat buf;
107
108 /*@ initialize data *************************************************** */
109 curr_cksum[0] = '\0';
110
111 /*@************************************************************** */
112
113 assert_string_is_neither_NULL_nor_zerolength(curr_fname);
114 if (lstat(curr_fname, &buf)) {
115 return (curr_cksum); // empty
116 }
117
118 sprintf(curr_cksum, "%ld-%ld-%ld", (long) (buf.st_size),
119 (long) (buf.st_mtime), (long) (buf.st_ctime));
120 return (curr_cksum);
121}
122
123
124
125/**
126 * Get the number of lines in @p filename.
127 * @param filename The file to count lines in.
128 * @return The number of lines in @p filename.
129 * @bug This function uses the shell and "wc -l"; it should probably be rewritten in C.
130 */
131long count_lines_in_file(char *filename)
132{
133
134 /*@ buffers ***************************************************** */
135 char *command = NULL;
136 char *incoming = NULL;
137
138 /*@ long ******************************************************** */
139 long noof_lines = -1L;
140
141 /*@ pointers **************************************************** */
142 FILE *fin;
143
144 assert_string_is_neither_NULL_nor_zerolength(filename);
145 if (!does_file_exist(filename)) {
146 log_it("%s does not exist, so I cannot found the number of lines in it", filename);
147 return (0);
148 }
149 mr_asprintf(command, "cat %s | wc -l", filename);
150 if (!does_file_exist(filename)) {
151 mr_free(command);
152 return (-1);
153 }
154 fin = popen(command, "r");
155 mr_free(command);
156
157 if (fin) {
158 if (feof(fin)) {
159 noof_lines = 0;
160 } else {
161 mr_getline(incoming, fin);
162 while (strlen(incoming) > 0 && incoming[strlen(incoming) - 1] < 32) {
163 incoming[strlen(incoming) - 1] = '\0';
164 }
165 noof_lines = atol(incoming);
166 mr_free(incoming);
167 }
168 paranoid_pclose(fin);
169 }
170 return (noof_lines);
171}
172
173
174/**
175 * Check for existence of given @p filename.
176 * @param filename The file to check for.
177 * @return TRUE if it exists, FALSE otherwise.
178 */
179bool does_file_exist(const char *filename)
180{
181
182 /*@ structures ************************************************** */
183 struct stat buf;
184
185 /*@************************************************************** */
186
187 assert(filename != NULL);
188 // assert_string_is_neither_NULL_nor_zerolength(filename);
189 if (lstat(filename, &buf)) {
190 log_msg(20, "%s does not exist", filename);
191 return (FALSE);
192 } else {
193 log_msg(20, "%s exists", filename);
194 return (TRUE);
195 }
196}
197
198
199
200
201
202
203/**
204 * Modify @p inout (a file containing a list of files) to only contain files
205 * that exist.
206 * @param inout The filelist to operate on.
207 * @note The original file is renamed beforehand, so it will not be accessible
208 * while the modification is in progress.
209 */
210void exclude_nonexistent_files(char *inout)
211{
212 char *infname = NULL;
213 char *outfname = NULL;
214 char *tmp = NULL;
215 char *incoming = NULL;
216
217 /*@ int ********************************************************* */
218 int i;
219
220 /*@ pointers **************************************************** */
221 FILE *fin, *fout;
222
223
224 /*@ end vars *********************************************************** */
225
226 assert_string_is_neither_NULL_nor_zerolength(inout);
227 mr_asprintf(infname, "%s.in", inout);
228 mr_asprintf(tmp, "cp -f %s %s", inout, infname);
229 run_program_and_log_output(tmp, FALSE);
230 mr_free(tmp);
231
232 if (!(fin = fopen(infname, "r"))) {
233 log_OS_error("Unable to openin infname");
234 mr_free(infname);
235 return;
236 }
237
238 mr_asprintf(outfname, "%s", inout);
239 if (!(fout = fopen(outfname, "w"))) {
240 log_OS_error("Unable to openout outfname");
241 mr_free(infname);
242 mr_free(outfname);
243 return;
244 }
245 mr_free(outfname);
246
247 for (mr_getline(incoming, fin); !feof(fin); mr_getline(incoming, fin)) {
248 i = strlen(incoming) - 1;
249 if (i >= 0 && incoming[i] < 32) {
250 incoming[i] = '\0';
251 }
252 if (does_file_exist(incoming)) {
253 fprintf(fout, "%s\n", incoming);
254 } else {
255 log_it("Excluding '%s'-nonexistent\n", incoming);
256 }
257 mr_free(incoming);
258 }
259 mr_free(incoming);
260
261 paranoid_fclose(fout);
262 paranoid_fclose(fin);
263 unlink(infname);
264 mr_free(infname);
265}
266
267
268/**
269 * Attempt to find the user's kernel by calling Mindi.
270 * If Mindi can't find the kernel, ask user. If @p kernel is not empty,
271 * don't do anything.
272 * @param kernel Where to put the found kernel.
273 * @return 0 for success aborts otherwise
274 */
275int figure_out_kernel_path_interactively_if_necessary(char *kernel)
276{
277 char *tmp = NULL;
278 char *command = NULL;
279
280 if (kernel == NULL) {
281 kernel = call_program_and_get_last_line_of_output("mindi --findkernel 2> /dev/null");
282 }
283 // If we didn't get anything back, check whether mindi raised a fatal error
284 if (strcmp(kernel,"") == 0) {
285 mr_asprintf(command, "grep 'Fatal error' %s", MINDI_LOGFILE);
286 tmp = call_program_and_get_last_line_of_output(command);
287 if (strlen(tmp) > 1) {
288 popup_and_OK(tmp);
289 mr_free(tmp);
290 mr_free(command);
291 fatal_error("Mindi gave a fatal error. Please check "MINDI_LOGFILE);
292 }
293 mr_free(tmp);
294 mr_free(command);
295 } else {
296 // If we've found the kernel, allow sysadmin to modify it if he wants
297 while ((kernel == NULL) || (strcmp(kernel,"") == 0)) {
298 if (!g_text_mode) {
299 tmp = mr_popup_and_get_string("Kernel path", "We found this full path name for your kernel. You should just use it in most cases", kernel);
300 if (tmp == NULL) {
301 fatal_error("Kernel not found. Please specify with the '-k' flag.");
302 } else {
303 mr_free(kernel);
304 kernel = tmp;
305 }
306 }
307 }
308 }
309 log_it("User says kernel is at %s", kernel);
310
311 log_it("Calling Mindi with kernel path of '%s'", kernel);
312 return(0);
313}
314
315
316/**
317 * Find location of specified executable in user's PATH.
318 * @param fname The basename of the executable to search for (e.g. @c afio).
319 * @return The full path to the executable, or "" if it does not exist, or NULL if @c file could not be found.
320 * @note The returned string points to static storage that will be overwritten with each call.
321 * @bug The checks with @c file and @c dirname seem pointless. If @c incoming is "", then you're calling
322 * <tt>dirname 2\>/dev/null</tt> or <tt>file 2\>/dev/null | cut -d':' -f1 2\>/dev/null</tt>, which basically amounts
323 * to nothing.
324 */
325char *find_home_of_exe(char *fname)
326{
327 /*@ buffers ********************* */
328 static char output[MAX_STR_LEN];
329 char *incoming = NULL;
330 char *command = NULL;
331
332 /*@******************************* */
333
334 assert_string_is_neither_NULL_nor_zerolength(fname);
335 mr_asprintf(command, "which %s 2> /dev/null", fname);
336 incoming = call_program_and_get_last_line_of_output(command);
337 mr_free(command);
338
339 if (incoming[0] == '\0') {
340 if (system("which file > /dev/null 2> /dev/null")) {
341 mr_free(incoming);
342 output[0] = '\0';
343 return(NULL); // forget it :)
344 }
345 mr_asprintf(command, "file %s 2> /dev/null | cut -d':' -f1 2> /dev/null", incoming);
346 mr_free(incoming);
347
348 incoming = call_program_and_get_last_line_of_output(command);
349 mr_free(command);
350 }
351 if (incoming[0] == '\0') {
352 mr_asprintf(command, "dirname %s 2> /dev/null", incoming);
353 mr_free(incoming);
354
355 incoming = call_program_and_get_last_line_of_output(command);
356 mr_free(command);
357 }
358 strcpy(output, incoming);
359 if (output[0] != '\0' && does_file_exist(output)) {
360 log_msg(4, "find_home_of_exe --- Found %s at %s", fname, incoming);
361 } else {
362 output[0] = '\0';
363 log_msg(4, "find_home_of_exe --- Could not find %s", fname);
364 }
365 mr_free(incoming);
366 if (!output[0]) {
367 return(NULL);
368 } else {
369 return(output);
370 }
371}
372
373
374/**
375 * Get the last sequence of digits surrounded by non-digits in the first 32k of
376 * a file.
377 * @param logfile The file to look in.
378 * @return The number found, or 0 if none.
379 */
380int get_trackno_from_logfile(char *logfile)
381{
382
383 /*@ pointers ********************************************************* */
384 FILE *fin;
385
386 /*@ int ************************************************************** */
387 int trackno = 0;
388 size_t len = 0;
389
390 /*@ buffer ************************************************************ */
391 char datablock[32701];
392
393 assert_string_is_neither_NULL_nor_zerolength(logfile);
394 if (!(fin = fopen(logfile, "r"))) {
395 log_OS_error("Unable to open logfile");
396 fatal_error("Unable to open logfile to read trackno");
397 }
398 len = fread(datablock, 1, 32700, fin);
399 paranoid_fclose(fin);
400 if (len <= 0) {
401 return (0);
402 }
403 for (; len > 0 && !isdigit(datablock[len - 1]); len--);
404 datablock[len--] = '\0';
405 for (; len > 0 && isdigit(datablock[len - 1]); len--);
406 trackno = atoi(datablock + len);
407 return (trackno);
408}
409
410
411
412
413
414
415
416/**
417 * Get a percentage from the last line of @p filename. We look for the string
418 * "% done" on the last line and, if we find it, grab the number before the last % sign.
419 * @param filename The file to get the percentage from.
420 * @return The percentage found, or 0 for error.
421 */
422int grab_percentage_from_last_line_of_file(char *filename)
423{
424
425 /*@ buffers ***************************************************** */
426 char *lastline = NULL;
427 char *command = NULL;
428 /*@ pointers **************************************************** */
429 char *p = NULL;
430
431 /*@ int's ******************************************************* */
432 int i = 0;
433
434 for (i = NOOF_ERR_LINES - 1; i >= 0 && !strstr(err_log_lines[i], "% Done") && !strstr(err_log_lines[i], "% done"); i--);
435 if (i < 0) {
436 mr_asprintf(command, "tail -n3 %s | grep -Fi \"%c\" | tail -n1 | awk '{print $0;}'", filename, '%');
437 lastline = call_program_and_get_last_line_of_output(command);
438 mr_free(command);
439 if (!lastline[0]) {
440 mr_free(lastline);
441 return(0);
442 }
443 } else {
444 mr_asprintf(lastline, "%s", err_log_lines[i]);
445 }
446
447 p = strrchr(lastline, '%');
448 if (p) {
449 *p = '\0';
450 } else {
451 mr_free(lastline);
452 return(0);
453 }
454
455 for (p--; isdigit(*p) && p != lastline; p--);
456 if (p != lastline) {
457 p++;
458 }
459 i = atoi(p);
460 mr_free(lastline);
461 return(i);
462}
463
464
465
466
467
468/**
469 * Return the last line of @p filename.
470 * @param filename The file to get the last line of.
471 * @return The last line of the file.
472 * @note The returned string points to static storage that will be overwritten with each call.
473 */
474char *last_line_of_file(char *filename)
475{
476 /*@ buffers ***************************************************** */
477 static char output[MAX_STR_LEN];
478 char *command = NULL;
479 char *p = NULL;
480
481 /*@ pointers **************************************************** */
482 FILE *fin;
483
484 /*@ end vars **************************************************** */
485
486 if (!does_file_exist(filename)) {
487 log_it("Trying to get last line of nonexistent file (%s)", filename);
488 output[0] = '\0';
489 return (output);
490 }
491 mr_asprintf(command, "tail -n1 %s", filename);
492 fin = popen(command, "r");
493 mr_free(command);
494 p = fgets(output, MAX_STR_LEN, fin);
495 if (p == NULL) {
496 // FIXME
497 }
498 paranoid_pclose(fin);
499 while (strlen(output) > 0 && output[strlen(output) - 1] < 32) {
500 output[strlen(output) - 1] = '\0';
501 }
502 return(output);
503}
504
505/**
506 * Get the length of @p filename in bytes.
507 * @param filename The file to get the length of.
508 * @return The length of the file, or -1 for error.
509 */
510off_t length_of_file(char *filename)
511{
512 /*@ pointers *************************************************** */
513 FILE *fin;
514
515 /*@ long long ************************************************* */
516 off_t length;
517
518 fin = fopen(filename, "r");
519 if (!fin) {
520 log_it("filename=%s", filename);
521 log_OS_error("Unable to openin filename");
522 return(-1);
523 }
524 fseeko(fin, 0, SEEK_END);
525 length = ftello(fin);
526 paranoid_fclose(fin);
527 return(length);
528}
529
530
531
532/**
533 * ?????
534 * @bug I don't know what this function does. However, it seems orphaned, so it should probably be removed.
535 */
536int make_checksum_list_file(char *filelist, char *cksumlist, char *comppath) {
537 /*@ pointers **************************************************** */
538 FILE *fin;
539 FILE *fout;
540
541 /*@ int ******************************************************* */
542 int percentage;
543 int i;
544 int counter = 0;
545
546 /*@ buffer ****************************************************** */
547 char *stub_fname = NULL;
548 char *curr_fname = NULL;
549 char *curr_cksum = NULL;
550 char *tmp = NULL;
551
552 /*@ long [long] ************************************************* */
553 off_t filelist_length;
554 off_t curr_pos;
555 long start_time;
556 long current_time;
557 long time_taken;
558 long time_remaining;
559
560 /*@ end vars *************************************************** */
561
562 start_time = get_time();
563 filelist_length = length_of_file(filelist);
564 log_it("filelist = %s; cksumlist = %s", filelist, cksumlist);
565
566 fin = fopen(filelist, "r");
567 if (fin == NULL) {
568 log_OS_error("Unable to fopen-in filelist");
569 log_to_screen("Can't open filelist");
570 return(1);
571 }
572 fout = fopen(cksumlist, "w");
573 if (fout == NULL) {
574 log_OS_error("Unable to openout cksumlist");
575 paranoid_fclose(fin);
576 log_to_screen("Can't open checksum list");
577 return(1);
578 }
579 for (mr_getline(stub_fname, fin); !feof(fin); mr_getline(stub_fname, fin)) {
580 i = strlen(stub_fname) - 1;
581 if (stub_fname[i] < 32) {
582 stub_fname[i] = '\0';
583 }
584 mr_asprintf(tmp, "%s%s", comppath, stub_fname);
585 mr_free(stub_fname);
586
587 mr_asprintf(curr_fname, "%s", tmp + 1);
588 mr_free(tmp);
589
590 mr_asprintf(curr_cksum, "%s", calc_file_ugly_minichecksum(curr_fname));
591 fprintf(fout, "%s\t%s\n", curr_fname, curr_cksum);
592 mr_free(curr_cksum);
593
594 if (counter++ > 12) {
595 current_time = get_time();
596 counter = 0;
597 /* TODO: 37 really ? */
598 curr_fname[37] = '\0';
599 curr_pos = ftello(fin) / 1024;
600 percentage = (int) (curr_pos * 100 / filelist_length);
601 time_taken = current_time - start_time;
602 if (percentage != 0) {
603 time_remaining = time_taken * 100 / (long) (percentage) - time_taken;
604 log_to_screen("%02d%% done %02d:%02d taken %02d:%02d remaining %-37s\r", percentage, (int) (time_taken / 60), (int) (time_taken % 60), (int) (time_remaining / 60), (int) (time_remaining % 60), curr_fname);
605 }
606 sync();
607 }
608 mr_free(curr_fname);
609 }
610 mr_free(stub_fname);
611
612 paranoid_fclose(fout);
613 paranoid_fclose(fin);
614 log_it("Done.");
615 return(0);
616}
617
618
619/**
620 * Create the directory @p outdir_fname and all parent directories. Equivalent to <tt>mkdir -p</tt>.
621 * @param outdir_fname The directory to create.
622 * @return The return value of @c mkdir.
623 */
624int make_hole_for_dir(const char *outdir_fname)
625{
626 char *tmp = NULL;
627 int res = 0;
628
629 assert_string_is_neither_NULL_nor_zerolength(outdir_fname);
630 mr_asprintf(tmp, "mkdir -p %s", outdir_fname);
631 res = system(tmp);
632 mr_free(tmp);
633 return(res);
634}
635
636
637/**
638 * Create the parent directories of @p outfile_fname.
639 * @param outfile_fname The file to make a "hole" for.
640 * @return 0, always.
641 * @bug Return value unnecessary.
642 */
643int make_hole_for_file(char *outfile_fname)
644{
645 /*@ buffer ****************************************************** */
646 char *command = NULL;
647
648 /*@ int ******************************************************** */
649 int res = 0;
650
651 /*@ end vars *************************************************** */
652
653 assert_string_is_neither_NULL_nor_zerolength(outfile_fname);
654 assert(!strstr(outfile_fname, MNT_CDROM));
655 assert(!strstr(outfile_fname, "/dev/cdrom"));
656 mr_asprintf(command, "mkdir -p \"%s\" 2> /dev/null", outfile_fname);
657 res += system(command);
658 mr_free(command);
659
660 mr_asprintf(command, "rmdir \"%s\" 2> /dev/null", outfile_fname);
661 res += system(command);
662 mr_free(command);
663
664 mr_asprintf(command, "rm -f \"%s\" 2> /dev/null", outfile_fname);
665 res += system(command);
666 mr_free(command);
667
668 unlink(outfile_fname);
669 return(0);
670}
671
672
673/**
674 * Get the number of lines in @p filelist_fname that contain the string @p wildcard.
675 * @param filelist_fname The file to search through.
676 * @param wildcard The string to search for. This is @e not a shell glob or a regular expression.
677 * @return The number of lines matched.
678 */
679long noof_lines_that_match_wildcard(char *filelist_fname, char *wildcard)
680{
681 /*@ long ******************************************************* */
682 long matches = 0;
683
684 /*@ pointers *************************************************** */
685 FILE *fin;
686
687 /*@ buffers **************************************************** */
688 char *incoming = NULL;
689
690 /*@ end vars *************************************************** */
691
692
693 fin = fopen(filelist_fname, "r");
694
695 if (!fin) {
696 log_OS_error("Unable to openin filelist_fname");
697 return(0);
698 }
699 mr_getline(incoming, fin);
700 while (!feof(fin)) {
701 if (strstr(incoming, wildcard)) {
702 matches++;
703 }
704 mr_free(incoming);
705 mr_getline(incoming, fin);
706 }
707 mr_free(incoming);
708 paranoid_fclose(fin);
709 return(matches);
710}
711
712
713
714/**
715 * Determine the size (in KB) of @p dev in the mountlist in <tt>tmpdir</tt>/mountlist.txt.
716 * @param tmpdir The tempdir where the mountlist is stored.
717 * @param dev The device to search for.
718 * @return The size of the partition in KB.
719 */
720long size_of_partition_in_mountlist_K(char *tmpdir, char *dev)
721{
722 char *command = NULL;
723 char *mountlist = NULL;
724 char *sz_res = NULL;
725 long file_len_K;
726
727 mr_asprintf(mountlist, "%s/mountlist.txt", tmpdir);
728 mr_asprintf(command, "grep \"%s \" %s/mountlist.txt | head -n1 | awk '{print $4}'", dev, tmpdir);
729 mr_free(mountlist);
730
731 log_it(command);
732 sz_res = call_program_and_get_last_line_of_output(command);
733 file_len_K = atol(sz_res);
734 log_msg(4, "%s --> %s --> %ld", command, sz_res, file_len_K);
735 mr_free(sz_res);
736 mr_free(command);
737
738 return(file_len_K);
739}
740
741/**
742 * Calculate the total size (in KB) of all the biggiefiles in this backup.
743 * @param bkpinfo The backup information structure. Only the @c bkpinfo->tmpdir field is used.
744 * @return The total size of all biggiefiles in KB.
745 */
746long size_of_all_biggiefiles_K()
747{
748 /*@ buffers ***************************************************** */
749 char *fname = NULL;
750 char *biggielist = NULL;
751 char *tmp = NULL;
752 char *command = NULL;
753
754 /*@ long ******************************************************** */
755 long scratchL = 0;
756 long file_len_K;
757
758 /*@ pointers *************************************************** */
759 FILE *fin = NULL;
760
761 /*@ end vars *************************************************** */
762
763 log_it("Calculating size of all biggiefiles (in total)");
764 mr_asprintf(biggielist, "%s/biggielist.txt", bkpinfo->tmpdir);
765 log_it("biggielist = %s", biggielist);
766 fin = fopen(biggielist, "r");
767 mr_free(biggielist);
768
769 if (!(fin)) {
770 log_OS_error("Cannot open biggielist. OK, so estimate is based on filesets only.");
771 } else {
772 log_msg(4, "Reading it...");
773 for (mr_getline(fname, fin); !feof(fin); mr_getline(fname, fin)) {
774 if (fname[strlen(fname) - 1] <= 32) {
775 fname[strlen(fname) - 1] = '\0';
776 }
777 if (0 == strncmp(fname, "/dev/", 5)) {
778 if (is_dev_an_NTFS_dev(fname)) {
779 if ( !find_home_of_exe("ntfsresize")) {
780 mr_free(tmp);
781 mr_free(fname);
782 fatal_error("ntfsresize not found");
783 }
784 mr_free(tmp);
785
786 mr_asprintf(command, "ntfsresize --force --info %s|grep '^You might resize at '|cut -d' ' -f5", fname);
787 log_it("command = %s", command);
788 tmp = call_program_and_get_last_line_of_output(command);
789 mr_free(command);
790
791 log_it("res of it = %s", tmp);
792 file_len_K = atoll(tmp) / 1024L;
793 mr_free(tmp);
794 } else {
795 file_len_K = get_phys_size_of_drive(fname) * 1024L;
796 }
797 } else {
798 /* TODO: more than long here ??? */
799 file_len_K = (long) (length_of_file(fname) / 1024);
800 }
801 if (file_len_K > 0) {
802 scratchL += file_len_K;
803 log_msg(4, "%s --> %ld K", fname, file_len_K);
804 }
805 log_msg(4, "After adding %s, scratchL+%ld now equals %ld", fname, file_len_K, scratchL);
806 if (feof(fin)) {
807 break;
808 }
809 mr_free(fname);
810 }
811 mr_free(fname);
812 }
813 log_it("Closing...");
814 paranoid_fclose(fin);
815 log_it("Finished calculating total size of all biggiefiles");
816 log_it("Total size of all biggiefiles = %ld Kb", scratchL);
817 return(scratchL);
818}
819
820/**
821 * Determine the amount of space (in KB) occupied by a mounted CD.
822 * This can also be used to find the space used for other directories.
823 * @param mountpt The mountpoint/directory to check.
824 * @return The amount of space occupied in KB.
825 */
826long long space_occupied_by_cd(char *mountpt)
827{
828 /*@ buffer ****************************************************** */
829 char *tmp = NULL;
830 char *command = NULL;
831 long long llres;
832 /*@ pointers **************************************************** */
833 char *p;
834 FILE *fin;
835
836 /*@ end vars *************************************************** */
837
838 mr_asprintf(command, "du -sk %s", mountpt);
839 errno = 0;
840 fin = popen(command, "r");
841 if (errno) {
842 log_it("popen() FAILED: command=%s, mountpt=%s, fin=%d, errno=%d, strerror=%s", command, mountpt, fin, errno, strerror(errno));
843 llres = 0;
844 } else {
845 mr_getline(tmp, fin);
846 paranoid_pclose(fin);
847 p = strchr(tmp, '\t');
848 if (p) {
849 *p = '\0';
850 }
851 for (p = tmp, llres = 0; *p != '\0'; p++) {
852 llres *= 10;
853 llres += (int) (*p - '0');
854 }
855 mr_free(tmp);
856 }
857 mr_free(command);
858
859 return(llres);
860}
861
862
863/**
864 * Update a CRC checksum to include another character.
865 * @param crc The original CRC checksum.
866 * @param c The character to add.
867 * @return The new CRC checksum.
868 * @ingroup utilityGroup
869 */
870unsigned int updcrc(unsigned int crc, unsigned int c)
871{
872 unsigned int tmp;
873 tmp = (crc >> 8) ^ c;
874 crc = (crc << 8) ^ crctttab[tmp & 255];
875 return(crc);
876}
877
878/**
879 * Update a reverse CRC checksum to include another character.
880 * @param crc The original CRC checksum.
881 * @param c The character to add.
882 * @return The new CRC checksum.
883 * @ingroup utilityGroup
884 */
885unsigned int updcrcr(unsigned int crc, unsigned int c)
886{
887 unsigned int tmp;
888 tmp = crc ^ c;
889 crc = (crc >> 8) ^ crc16tab[tmp & 0xff];
890 return(crc);
891}
892
893
894
895
896/**
897 * Check for an executable on the user's system; write a message to the
898 * screen and the log if we can't find it.
899 * @param fname The executable basename to look for.
900 * @return 0 if it's found, nonzero if not.
901 */
902int whine_if_not_found(char *fname)
903{
904 /*@ buffers *** */
905 char *command = NULL;
906 int res = 0;
907
908 mr_asprintf(command, "which %s > /dev/null 2> /dev/null", fname);
909 res = system(command);
910 mr_free(command);
911
912 if (res) {
913 log_to_screen("Please install '%s'. I cannot find it on your system.", fname);
914 log_to_screen("There may be hyperlink at http://www.mondorescue.org which");
915 log_to_screen("will take you to the relevant (missing) package.");
916 return(1);
917 } else {
918 return(0);
919 }
920}
921
922
923
924
925
926
927/**
928 * Create a data file at @p fname containing @p contents.
929 * The data actually can be multiple lines, despite the name.
930 * @param fname The file to create.
931 * @param contents The data to put in it.
932 * @return 0 for success, 1 for failure.
933 */
934int write_one_liner_data_file(char *fname, char *contents)
935{
936 /*@ pointers *************************************************** */
937 FILE *fout;
938 int res = 0;
939
940 /*@ end vars *************************************************** */
941
942 assert_string_is_neither_NULL_nor_zerolength(fname);
943 if (!contents) {
944 log_it("%d: Warning - writing NULL to %s", __LINE__, fname);
945 }
946 if (!(fout = fopen(fname, "w"))) {
947 log_it("fname=%s");
948 log_OS_error("Unable to openout fname");
949 return (1);
950 }
951 fprintf(fout, "%s\n", contents);
952 paranoid_fclose(fout);
953 return (res);
954}
955
956
957
958/**
959 * Read @p fname into @p contents.
960 * @param fname The file to read.
961 * @param contents Where to put its contents.
962 * @return 0 for success, nonzero for failure.
963 */
964int read_one_liner_data_file(char *fname, char *contents)
965{
966 /*@ pointers *************************************************** */
967 FILE *fin;
968 int res = 0;
969 int i;
970
971 /*@ end vars *************************************************** */
972
973 assert_string_is_neither_NULL_nor_zerolength(fname);
974 if (!contents) {
975 log_it("%d: Warning - reading NULL from %s", __LINE__, fname);
976 }
977 if (!(fin = fopen(fname, "r"))) {
978 log_it("fname=%s", fname);
979 log_OS_error("Unable to openin fname");
980 return(1);
981 }
982 res = fscanf(fin, "%s\n", contents);
983 i = strlen(contents);
984 if (i > 0 && contents[i - 1] < 32) {
985 contents[i - 1] = '\0';
986 }
987 paranoid_fclose(fin);
988 res = 0;
989 return(res);
990}
991
992
993
994
995
996
997/**
998 * Copy the files that Mondo/Mindi need to run to the scratchdir or tempdir.
999 * Currently this includes: copy Mondo's home directory to scratchdir, untar "mondo_home/payload.tgz"
1000 * if it exists, copy LAST-FILELIST-NUMBER to scratchdir, copy mondorestore
1001 * and post-nuke.tgz (if it exists) to tmpdir, and run "hostname > scratchdir/HOSTNAME".
1002 * @param bkpinfo The backup information structure. Fields used:
1003 * - @c bkpinfo->postnuke_tarball
1004 * - @c bkpinfo->scratchdir
1005 * - @c bkpinfo->tmpdir
1006 */
1007void copy_mondo_and_mindi_stuff_to_scratchdir()
1008{
1009 /*@ Char buffers ** */
1010 char *command = NULL;
1011 char *tmp = NULL;
1012 char *old_pwd = NULL;
1013 int res = 0;
1014
1015 mvaddstr_and_log_it(g_currentY, 0, "Copying Mondo's core files to the scratch directory");
1016
1017 log_msg(4, "g_mondo_home='%s'", g_mondo_home);
1018 if (strlen(g_mondo_home) < 2) {
1019 find_and_store_mondoarchives_home(g_mondo_home);
1020 }
1021 mr_asprintf(command, CP_BIN " --parents -pRdf %s %s", g_mondo_home, bkpinfo->scratchdir);
1022
1023 log_msg(4, "command = %s", command);
1024 res = run_program_and_log_output(command, 1);
1025 mr_free(command);
1026
1027 if (res) {
1028 fatal_error("Failed to copy Mondo's stuff to scratchdir");
1029 }
1030
1031 mr_asprintf(tmp, "%s/payload.tgz", g_mondo_home);
1032 if (does_file_exist(tmp)) {
1033 log_it("Untarring payload %s to scratchdir %s", tmp, bkpinfo->scratchdir);
1034 old_pwd = mr_getcwd();
1035 if (chdir(bkpinfo->scratchdir)) {
1036 // FIXME
1037 }
1038 mr_asprintf(command, "tar -zxvf %s", tmp);
1039 res = run_program_and_log_output(command, FALSE);
1040 if (res) {
1041 mr_free(command);
1042 mr_free(tmp);
1043 fatal_error("Failed to untar payload");
1044 }
1045 mr_free(command);
1046 if (chdir(old_pwd)) {
1047 // FIXME
1048 }
1049 mr_free(old_pwd);
1050 }
1051 mr_free(tmp);
1052
1053 mr_asprintf(command, "cp -f %s/LAST-FILELIST-NUMBER %s", bkpinfo->tmpdir, bkpinfo->scratchdir);
1054
1055 if (run_program_and_log_output(command, FALSE)) {
1056 fatal_error("Failed to copy LAST-FILELIST-NUMBER to scratchdir");
1057 }
1058 mr_free(command);
1059
1060 tmp = call_program_and_get_last_line_of_output("which mondorestore");
1061 if (!tmp[0]) {
1062 mr_free(tmp);
1063 fatal_error("'which mondorestore' returned null. Where's your mondorestore? `which` can't find it. That's odd. Did you install mondorestore?");
1064 }
1065
1066 mr_asprintf(command, "cp -f %s %s", tmp, bkpinfo->tmpdir);
1067 mr_free(tmp);
1068 res = run_program_and_log_output(command, FALSE);
1069 if (res) {
1070 mr_free(command);
1071 fatal_error("Failed to copy mondorestore to tmpdir");
1072 }
1073 mr_free(command);
1074
1075 mr_asprintf(command, "hostname > %s/HOSTNAME", bkpinfo->scratchdir);
1076 paranoid_system(command);
1077 mr_free(command);
1078
1079 if (bkpinfo->postnuke_tarball != NULL) {
1080 mr_asprintf(command, "cp -f %s %s/post-nuke.tgz", bkpinfo->postnuke_tarball, bkpinfo->tmpdir);
1081 res = run_program_and_log_output(command, FALSE);
1082 mr_free(command);
1083
1084 if (res) {
1085 fatal_error("Unable to copy post-nuke tarball to tmpdir");
1086 }
1087 }
1088
1089 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1090}
1091
1092
1093/**
1094 * Determine the approximate number of media that the backup will take up,
1095 * and tell the user. The uncompressed size is estimated as size_of_all_biggiefiles_K()
1096 * plus (noof_sets x bkpinfo->optimal_set_size). The compression factor is estimated as
1097 * 2/3 for LZO and 1/2 for bzip2. The data is not saved anywhere. If there are any
1098 * "imagedevs", the estimate is not shown as it will be wildly inaccurate.
1099 * If there are more than 50 media estimated, the estimate will not be shown.
1100 * @param bkpinfo The backup information structure. Fields used:
1101 * - @c bkpinfo->backup_media_type
1102 * - @c bkpinfo->media_size
1103 * - @c bkpinfo->optimal_set_size
1104 * - @c bkpinfo->use_lzo
1105 * @param noof_sets The number of filesets created.
1106 * @ingroup archiveGroup
1107 */
1108void
1109estimate_noof_media_required(long noof_sets)
1110{
1111 /*@ buffers *************** */
1112 char *tmp = NULL;
1113 char *tmp1 = NULL;
1114 char *mds = NULL;
1115
1116 /*@ long long ************* */
1117 long long scratchLL;
1118
1119 if (bkpinfo->media_size <= 0) {
1120 log_to_screen("Number of media required: UNKNOWN");
1121 return;
1122 }
1123
1124 log_it("Estimating number of media required...");
1125 scratchLL = (long long) (noof_sets) * (long long) (bkpinfo->optimal_set_size) + (long long) (size_of_all_biggiefiles_K());
1126 scratchLL = (scratchLL / 1024) / bkpinfo->media_size;
1127 scratchLL++;
1128 if (bkpinfo->use_lzo) {
1129 scratchLL = (scratchLL * 2) / 3;
1130 } else if (bkpinfo->use_gzip) {
1131 scratchLL = (scratchLL * 2) / 3;
1132 } else if (bkpinfo->use_lzma) {
1133 scratchLL = (scratchLL * 2) / 3;
1134 } else {
1135 scratchLL = scratchLL / 2;
1136 }
1137 if (!scratchLL) {
1138 scratchLL++;
1139 }
1140 tmp1 = number_to_text((int) (scratchLL + 1));
1141 if (scratchLL <= 1) {
1142 mds = media_descriptor_string(bkpinfo->backup_media_type);
1143 mr_asprintf(tmp, "Your backup will probably occupy a single %s. Maybe two.", mds);
1144 mr_free(mds);
1145 } else if (scratchLL > 5) {
1146 mr_asprintf(tmp, "Your backup will occupy one meeeeellion media! (maybe %s)", tmp1);
1147 } else {
1148 mr_asprintf(tmp, "Your backup will occupy approximately %s media.", tmp1);
1149 }
1150 if (scratchLL < 50) {
1151 log_to_screen(tmp);
1152 }
1153 mr_free(tmp1);
1154 mr_free(tmp);
1155}
1156
1157
1158/**
1159 * Determine whether a file is compressed. This is done
1160 * by reading through the "do-not-compress-these" file distributed with Mondo.
1161 * @param filename The file to check.
1162 * @return TRUE if it's compressed, FALSE if not.
1163 */
1164bool is_this_file_compressed(char *filename)
1165{
1166 char *do_not_compress_these = NULL;
1167 char *tmp = NULL;
1168 char *p;
1169 char *q = NULL;
1170
1171 q = strrchr(filename, '.');
1172 if (q == NULL) {
1173 return (FALSE);
1174 }
1175
1176 mr_asprintf(tmp, "%s/do-not-compress-these", g_mondo_home);
1177 if (!does_file_exist(tmp)) {
1178 mr_free(tmp);
1179 return (FALSE);
1180 }
1181 /* TODO: This is just plain WRONG !! */
1182 mr_asprintf(do_not_compress_these,"%s", last_line_of_file(tmp));
1183 mr_free(tmp);
1184
1185 for (p = do_not_compress_these; p != NULL; p++) {
1186 mr_asprintf(tmp, "%s", p);
1187 if (strchr(tmp, ' ')) {
1188 *(strchr(tmp, ' ')) = '\0';
1189 }
1190 if (!strcmp(q, tmp)) {
1191 mr_free(tmp);
1192 mr_free(do_not_compress_these);
1193 return (TRUE);
1194 }
1195 if (!(p = strchr(p, ' '))) {
1196 break;
1197 }
1198 mr_free(tmp);
1199 }
1200 mr_free(do_not_compress_these);
1201 return (FALSE);
1202}
1203
1204/* @} - end fileGroup */
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