source: MondoRescue/branches/2.2.8/mondo/src/common/libmondo-files.c@ 2053

Last change on this file since 2053 was 2053, checked in by Bruno Cornec, 17 years ago

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1/* file manipulation
2 $Id: libmondo-files.c 2053 2008-10-23 13:16:34Z bruno $
3*/
4
5/**
6 * @file
7 * Functions to manipulate files.
8 */
9
10
11#include "my-stuff.h"
12#include "mondostructures.h"
13#include "libmondo-files.h"
14
15#include "lib-common-externs.h"
16
17#include "libmondo-tools-EXT.h"
18#include "libmondo-gui-EXT.h"
19#include "libmondo-devices-EXT.h"
20#include "libmondo-fork-EXT.h"
21#include "libmondo-string-EXT.h"
22
23/*@unused@*/
24//static char cvsid[] = "$Id: libmondo-files.c 2053 2008-10-23 13:16:34Z bruno $";
25
26extern char err_log_lines[NOOF_ERR_LINES][MAX_STR_LEN];
27
28extern int g_currentY;
29extern char *g_mondo_home;
30
31/* Reference to global bkpinfo */
32extern struct s_bkpinfo *bkpinfo;
33
34/**
35 * @addtogroup fileGroup
36 * @{
37 */
38/**
39 * Get an md5 checksum of the specified file.
40 * @param filename The file to checksum.
41 * @return The 32-character ASCII representation of the 128-bit checksum.
42 * @note The returned string points to static storage that will be overwritten with each call.
43 */
44char *calc_checksum_of_file(char *filename)
45{
46 /*@ buffers ***************************************************** */
47 static char output[MAX_STR_LEN];
48 char command[MAX_STR_LEN * 2];
49 char tmp[MAX_STR_LEN];
50
51 /*@ pointers **************************************************** */
52 char *p;
53 FILE *fin;
54
55 /*@ initialize pointers ***************************************** */
56
57 p = output;
58
59 /*@************************************************************** */
60
61 assert_string_is_neither_NULL_nor_zerolength(filename);
62 if (does_file_exist(filename)) {
63 sprintf(command, "md5sum \"%s\"", filename);
64 fin = popen(command, "r");
65 if (fin) {
66 (void) fgets(output, MAX_STR_LEN, fin);
67 p = strchr(output, ' ');
68 paranoid_pclose(fin);
69 }
70 } else {
71 sprintf(tmp, "File '%s' not found; cannot calc checksum",
72 filename);
73 log_it(tmp);
74 }
75 if (p) {
76 *p = '\0';
77 }
78 return (output);
79}
80
81
82/**
83 * Get a not-quite-unique representation of some of the file's @c stat properties.
84 * The returned string has the form <tt>size-mtime-ctime</tt>.
85 * @param curr_fname The file to generate the "checksum" for.
86 * @return The "checksum".
87 * @note The returned string points to static storage that will be overwritten with each call.
88 */
89char *calc_file_ugly_minichecksum(char *curr_fname)
90{
91
92 /*@ buffers ***************************************************** */
93 static char curr_cksum[1000];
94
95 /*@ pointers **************************************************** */
96
97 /*@ structures ************************************************** */
98 struct stat buf;
99
100 /*@ initialize data *************************************************** */
101 curr_cksum[0] = '\0';
102
103 /*@************************************************************** */
104
105 assert_string_is_neither_NULL_nor_zerolength(curr_fname);
106 if (lstat(curr_fname, &buf)) {
107 return (curr_cksum); // empty
108 }
109
110 sprintf(curr_cksum, "%ld-%ld-%ld", (long) (buf.st_size),
111 (long) (buf.st_mtime), (long) (buf.st_ctime));
112 return (curr_cksum);
113}
114
115
116
117/**
118 * Get the number of lines in @p filename.
119 * @param filename The file to count lines in.
120 * @return The number of lines in @p filename.
121 * @bug This function uses the shell and "wc -l"; it should probably be rewritten in C.
122 */
123long count_lines_in_file(char *filename)
124{
125
126 /*@ buffers ***************************************************** */
127 char command[MAX_STR_LEN * 2];
128 char incoming[MAX_STR_LEN];
129 char tmp[MAX_STR_LEN];
130
131 /*@ long ******************************************************** */
132 long noof_lines = -1L;
133
134 /*@ pointers **************************************************** */
135 FILE *fin;
136
137 /*@ initialize [0] to null ******************************************** */
138 incoming[0] = '\0';
139
140 assert_string_is_neither_NULL_nor_zerolength(filename);
141 if (!does_file_exist(filename)) {
142 sprintf(tmp,
143 "%s does not exist, so I cannot found the number of lines in it",
144 filename);
145 log_it(tmp);
146 return (0);
147 }
148 sprintf(command, "cat %s | wc -l", filename);
149 if (!does_file_exist(filename)) {
150 return (-1);
151 }
152 fin = popen(command, "r");
153 if (fin) {
154 if (feof(fin)) {
155 noof_lines = 0;
156 } else {
157 (void) fgets(incoming, MAX_STR_LEN - 1, fin);
158 while (strlen(incoming) > 0
159 && incoming[strlen(incoming) - 1] < 32) {
160 incoming[strlen(incoming) - 1] = '\0';
161 }
162 noof_lines = atol(incoming);
163 }
164 paranoid_pclose(fin);
165 }
166 return (noof_lines);
167}
168
169
170/**
171 * Check for existence of given @p filename.
172 * @param filename The file to check for.
173 * @return TRUE if it exists, FALSE otherwise.
174 */
175bool does_file_exist(char *filename)
176{
177
178 /*@ structures ************************************************** */
179 struct stat buf;
180
181 /*@************************************************************** */
182
183 assert(filename != NULL);
184 // assert_string_is_neither_NULL_nor_zerolength(filename);
185 if (lstat(filename, &buf)) {
186 log_msg(20, "%s does not exist", filename);
187 return (FALSE);
188 } else {
189 log_msg(20, "%s exists", filename);
190 return (TRUE);
191 }
192}
193
194
195
196
197
198
199/**
200 * Modify @p inout (a file containing a list of files) to only contain files
201 * that exist.
202 * @param inout The filelist to operate on.
203 * @note The original file is renamed beforehand, so it will not be accessible
204 * while the modification is in progress.
205 */
206void exclude_nonexistent_files(char *inout)
207{
208 char infname[MAX_STR_LEN];
209 char outfname[MAX_STR_LEN];
210 char tmp[MAX_STR_LEN];
211 char incoming[MAX_STR_LEN];
212
213 /*@ int ********************************************************* */
214 int i;
215
216 /*@ pointers **************************************************** */
217 FILE *fin, *fout;
218
219
220 /*@ end vars *********************************************************** */
221
222 assert_string_is_neither_NULL_nor_zerolength(inout);
223 sprintf(infname, "%s.in", inout);
224 sprintf(outfname, "%s", inout);
225 sprintf(tmp, "cp -f %s %s", inout, infname);
226 run_program_and_log_output(tmp, FALSE);
227 if (!(fin = fopen(infname, "r"))) {
228 log_OS_error("Unable to openin infname");
229 return;
230 }
231 if (!(fout = fopen(outfname, "w"))) {
232 log_OS_error("Unable to openout outfname");
233 return;
234 }
235 for (fgets(incoming, MAX_STR_LEN, fin); !feof(fin);
236 fgets(incoming, MAX_STR_LEN, fin)) {
237 i = strlen(incoming) - 1;
238 if (i >= 0 && incoming[i] < 32) {
239 incoming[i] = '\0';
240 }
241 if (does_file_exist(incoming)) {
242 fprintf(fout, "%s\n", incoming);
243 } else {
244 sprintf(tmp, "Excluding '%s'-nonexistent\n", incoming);
245 log_it(tmp);
246 }
247 }
248 paranoid_fclose(fout);
249 paranoid_fclose(fin);
250 unlink(infname);
251}
252
253
254
255
256
257
258
259
260
261/**
262 * Attempt to find the user's kernel by calling Mindi.
263 * If Mindi can't find the kernel, ask user. If @p kernel is not empty,
264 * don't do anything.
265 * @param kernel Where to put the found kernel.
266 * @return 0 for success, 1 for failure.
267 */
268int figure_out_kernel_path_interactively_if_necessary(char *kernel)
269{
270 char tmp[MAX_STR_LEN];
271 char *command;
272
273 if (!kernel[0]) {
274 strcpy(kernel,
275 call_program_and_get_last_line_of_output
276 ("mindi --findkernel 2> /dev/null"));
277 }
278 // If we didn't get anything back, check whether mindi raised a fatal error
279 if (!kernel[0]) {
280 malloc_string(command);
281 strcpy(command, "grep 'Fatal error' /var/log/mindi.log");
282 strcpy(tmp, call_program_and_get_last_line_of_output(command));
283 if (strlen(tmp) > 1) {
284 popup_and_OK(tmp);
285 fatal_error("Mindi gave a fatal error. Please check '/var/log/mindi.log'.");
286 }
287 paranoid_free(command);
288 }
289 log_it("Calling Mindi with kernel path of '%s'", kernel);
290 while (!kernel[0]) {
291 if (!ask_me_yes_or_no
292 ("Kernel not found or invalid. Choose another?")) {
293 return (1);
294 }
295 if (!popup_and_get_string
296 ("Kernel path",
297 "What is the full path and filename of your kernel, please?",
298 kernel, MAX_STR_LEN / 4)) {
299 fatal_error
300 ("Kernel not found. Please specify with the '-k' flag.");
301 }
302 sprintf(tmp, "User says kernel is at %s", kernel);
303 log_it(tmp);
304 }
305 return (0);
306}
307
308
309
310
311
312
313/**
314 * Find location of specified executable in user's PATH.
315 * @param fname The basename of the executable to search for (e.g. @c afio).
316 * @return The full path to the executable, or "" if it does not exist, or NULL if @c file could not be found.
317 * @note The returned string points to static storage that will be overwritten with each call.
318 * @bug The checks with @c file and @c dirname seem pointless. If @c incoming is "", then you're calling
319 * <tt>dirname 2\>/dev/null</tt> or <tt>file 2\>/dev/null | cut -d':' -f1 2\>/dev/null</tt>, which basically amounts
320 * to nothing.
321 */
322char *find_home_of_exe(char *fname)
323{
324 /*@ buffers ********************* */
325 static char output[MAX_STR_LEN];
326 char *incoming;
327 char *command;
328
329 malloc_string(incoming);
330 malloc_string(command);
331 incoming[0] = '\0';
332 /*@******************************* */
333
334 assert_string_is_neither_NULL_nor_zerolength(fname);
335 sprintf(command, "which %s 2> /dev/null", fname);
336 strcpy(incoming, call_program_and_get_last_line_of_output(command));
337 if (incoming[0] == '\0') {
338 if (system("which file > /dev/null 2> /dev/null")) {
339 paranoid_free(incoming);
340 paranoid_free(command);
341 output[0] = '\0';
342 return (NULL); // forget it :)
343 }
344 sprintf(command,
345 "file %s 2> /dev/null | cut -d':' -f1 2> /dev/null",
346 incoming);
347 strcpy(incoming,
348 call_program_and_get_last_line_of_output(command));
349 }
350 if (incoming[0] == '\0') // yes, it is == '\0' twice, not once :)
351 {
352 sprintf(command, "dirname %s 2> /dev/null", incoming);
353 strcpy(incoming,
354 call_program_and_get_last_line_of_output(command));
355 }
356 strcpy(output, incoming);
357 if (output[0] != '\0' && does_file_exist(output)) {
358 log_msg(4, "find_home_of_exe () --- Found %s at %s", fname,
359 incoming);
360 } else {
361 output[0] = '\0';
362 log_msg(4, "find_home_of_exe() --- Could not find %s", fname);
363 }
364 paranoid_free(incoming);
365 paranoid_free(command);
366 if (!output[0]) {
367 return (NULL);
368 } else {
369 return (output);
370 }
371}
372
373
374
375
376
377
378
379
380/**
381 * Get the last sequence of digits surrounded by non-digits in the first 32k of
382 * a file.
383 * @param logfile The file to look in.
384 * @return The number found, or 0 if none.
385 */
386int get_trackno_from_logfile(char *logfile)
387{
388
389 /*@ pointers ********************************************************* */
390 FILE *fin;
391
392 /*@ int ************************************************************** */
393 int trackno = 0;
394 size_t len = 0;
395
396 /*@ buffer ************************************************************ */
397 char datablock[32701];
398
399 assert_string_is_neither_NULL_nor_zerolength(logfile);
400 if (!(fin = fopen(logfile, "r"))) {
401 log_OS_error("Unable to open logfile");
402 fatal_error("Unable to open logfile to read trackno");
403 }
404 len = fread(datablock, 1, 32700, fin);
405 paranoid_fclose(fin);
406 if (len <= 0) {
407 return (0);
408 }
409 for (; len > 0 && !isdigit(datablock[len - 1]); len--);
410 datablock[len--] = '\0';
411 for (; len > 0 && isdigit(datablock[len - 1]); len--);
412 trackno = atoi(datablock + len);
413 /*
414 sprintf(tmp,"datablock=%s; trackno=%d",datablock+len, trackno);
415 log_it(tmp);
416 */
417 return (trackno);
418}
419
420
421
422
423
424
425
426/**
427 * Get a percentage from the last line of @p filename. We look for the string
428 * "% done" on the last line and, if we find it, grab the number before the last % sign.
429 * @param filename The file to get the percentage from.
430 * @return The percentage found, or 0 for error.
431 */
432int grab_percentage_from_last_line_of_file(char *filename)
433{
434
435 /*@ buffers ***************************************************** */
436 char tmp[MAX_STR_LEN];
437 char lastline[MAX_STR_LEN];
438 char command[MAX_STR_LEN];
439 /*@ pointers **************************************************** */
440 char *p;
441
442 /*@ int's ******************************************************* */
443 int i;
444
445 for (i = NOOF_ERR_LINES - 1;
446 i >= 0 && !strstr(err_log_lines[i], "% Done")
447 && !strstr(err_log_lines[i], "% done"); i--);
448 if (i < 0) {
449 sprintf(command,
450 "tail -n3 %s | grep -Fi \"%c\" | tail -n1 | awk '{print $0;}'",
451 filename, '%');
452 strcpy(lastline,
453 call_program_and_get_last_line_of_output(command));
454 if (!lastline[0]) {
455 return (0);
456 }
457 } else {
458 strcpy(lastline, err_log_lines[i]);
459 }
460
461 p = strrchr(lastline, '%');
462 if (p) {
463 *p = '\0';
464 }
465// log_msg(2, "lastline='%s', ", p, lastline);
466 if (!p) {
467 return (0);
468 }
469 *p = '\0';
470 for (p--; *p != ' ' && p != lastline; p--);
471 if (p != lastline) {
472 p++;
473 }
474 i = atoi(p);
475
476 sprintf(tmp, "'%s' --> %d", p, i);
477// log_to_screen(tmp);
478
479 return (i);
480}
481
482
483
484
485
486/**
487 * Return the last line of @p filename.
488 * @param filename The file to get the last line of.
489 * @return The last line of the file.
490 * @note The returned string points to static storage that will be overwritten with each call.
491 */
492char *last_line_of_file(char *filename)
493{
494 /*@ buffers ***************************************************** */
495 static char output[MAX_STR_LEN];
496 static char command[MAX_STR_LEN * 2];
497 static char tmp[MAX_STR_LEN];
498
499 /*@ pointers **************************************************** */
500 FILE *fin;
501
502 /*@ end vars **************************************************** */
503
504 if (!does_file_exist(filename)) {
505 sprintf(tmp, "Tring to get last line of nonexistent file (%s)",
506 filename);
507 log_it(tmp);
508 output[0] = '\0';
509 return (output);
510 }
511 sprintf(command, "tail -n1 %s", filename);
512 fin = popen(command, "r");
513 (void) fgets(output, MAX_STR_LEN, fin);
514 paranoid_pclose(fin);
515 while (strlen(output) > 0 && output[strlen(output) - 1] < 32) {
516 output[strlen(output) - 1] = '\0';
517 }
518 return (output);
519}
520
521/**
522 * Get the length of @p filename in bytes.
523 * @param filename The file to get the length of.
524 * @return The length of the file, or -1 for error.
525 */
526off_t length_of_file(char *filename)
527{
528 /*@ pointers *************************************************** */
529 FILE *fin;
530
531 /*@ long long ************************************************* */
532 off_t length;
533
534 fin = fopen(filename, "r");
535 if (!fin) {
536 log_it("filename=%s", filename);
537 log_OS_error("Unable to openin filename");
538 return (-1);
539 }
540 fseeko(fin, 0, SEEK_END);
541 length = ftello(fin);
542 paranoid_fclose(fin);
543 return (length);
544}
545
546
547
548/**
549 * ?????
550 * @bug I don't know what this function does. However, it seems orphaned, so it should probably be removed.
551 */
552int
553make_checksum_list_file(char *filelist, char *cksumlist, char *comppath)
554{
555 /*@ pointers **************************************************** */
556 FILE *fin;
557 FILE *fout;
558
559 /*@ int ******************************************************* */
560 int percentage;
561 int i;
562 int counter = 0;
563
564 /*@ buffer ****************************************************** */
565 char stub_fname[1000];
566 char curr_fname[1000];
567 char curr_cksum[1000];
568 char tmp[1000];
569
570 /*@ long [long] ************************************************* */
571 off_t filelist_length;
572 off_t curr_pos;
573 long start_time;
574 long current_time;
575 long time_taken;
576 long time_remaining;
577
578 /*@ end vars *************************************************** */
579
580 start_time = get_time();
581 filelist_length = length_of_file(filelist);
582 sprintf(tmp, "filelist = %s; cksumlist = %s", filelist, cksumlist);
583 log_it(tmp);
584 fin = fopen(filelist, "r");
585 if (fin == NULL) {
586 log_OS_error("Unable to fopen-in filelist");
587 log_to_screen("Can't open filelist");
588 return (1);
589 }
590 fout = fopen(cksumlist, "w");
591 if (fout == NULL) {
592 log_OS_error("Unable to openout cksumlist");
593 paranoid_fclose(fin);
594 log_to_screen("Can't open checksum list");
595 return (1);
596 }
597 for (fgets(stub_fname, 999, fin); !feof(fin);
598 fgets(stub_fname, 999, fin)) {
599 if (stub_fname[(i = strlen(stub_fname) - 1)] < 32) {
600 stub_fname[i] = '\0';
601 }
602 sprintf(tmp, "%s%s", comppath, stub_fname);
603 strcpy(curr_fname, tmp + 1);
604 strcpy(curr_cksum, calc_file_ugly_minichecksum(curr_fname));
605 fprintf(fout, "%s\t%s\n", curr_fname, curr_cksum);
606 if (counter++ > 12) {
607 current_time = get_time();
608 counter = 0;
609 curr_fname[37] = '\0';
610 curr_pos = ftello(fin) / 1024;
611 percentage = (int) (curr_pos * 100 / filelist_length);
612 time_taken = current_time - start_time;
613 if (percentage == 0) {
614 /* printf("%0d%% done \r",percentage); */
615 } else {
616 time_remaining =
617 time_taken * 100 / (long) (percentage) - time_taken;
618 sprintf(tmp,
619 "%02d%% done %02d:%02d taken %02d:%02d remaining %-37s\r",
620 percentage, (int) (time_taken / 60),
621 (int) (time_taken % 60),
622 (int) (time_remaining / 60),
623 (int) (time_remaining % 60), curr_fname);
624 log_to_screen(tmp);
625 }
626 sync();
627 }
628 }
629 paranoid_fclose(fout);
630 paranoid_fclose(fin);
631 log_it("Done.");
632 return (0);
633}
634
635
636/**
637 * Create the directory @p outdir_fname and all parent directories. Equivalent to <tt>mkdir -p</tt>.
638 * @param outdir_fname The directory to create.
639 * @return The return value of @c mkdir.
640 */
641int make_hole_for_dir(char *outdir_fname)
642{
643 char tmp[MAX_STR_LEN * 2];
644 int res = 0;
645
646 assert_string_is_neither_NULL_nor_zerolength(outdir_fname);
647 sprintf(tmp, "mkdir -p %s", outdir_fname);
648 res = system(tmp);
649 return (res);
650}
651
652
653/**
654 * Create the parent directories of @p outfile_fname.
655 * @param outfile_fname The file to make a "hole" for.
656 * @return 0, always.
657 * @bug Return value unnecessary.
658 */
659int make_hole_for_file(char *outfile_fname)
660{
661 /*@ buffer ****************************************************** */
662 char command[MAX_STR_LEN * 2];
663
664 /*@ int ******************************************************** */
665 int res = 0;
666
667 /*@ end vars *************************************************** */
668
669 assert_string_is_neither_NULL_nor_zerolength(outfile_fname);
670 assert(!strstr(outfile_fname, MNT_CDROM));
671 assert(!strstr(outfile_fname, "/dev/cdrom"));
672 sprintf(command, "mkdir -p \"%s\" 2> /dev/null", outfile_fname);
673 res += system(command);
674 sprintf(command, "rmdir \"%s\" 2> /dev/null", outfile_fname);
675 res += system(command);
676 sprintf(command, "rm -f \"%s\" 2> /dev/null", outfile_fname);
677 res += system(command);
678 unlink(outfile_fname);
679 return (0);
680}
681
682
683
684
685/**
686 * Get the number of lines in @p filelist_fname that contain the string @p wildcard.
687 * @param filelist_fname The file to search through.
688 * @param wildcard The string to search for. This is @e not a shell glob or a regular expression.
689 * @return The number of lines matched.
690 */
691long noof_lines_that_match_wildcard(char *filelist_fname, char *wildcard)
692{
693 /*@ long ******************************************************* */
694 long matches = 0;
695
696 /*@ pointers *************************************************** */
697 FILE *fin;
698
699 /*@ buffers **************************************************** */
700 char incoming[MAX_STR_LEN];
701
702 /*@ end vars *************************************************** */
703
704
705 fin = fopen(filelist_fname, "r");
706
707 if (!fin) {
708 log_OS_error("Unable to openin filelist_fname");
709 return (0);
710 }
711 (void) fgets(incoming, MAX_STR_LEN - 1, fin);
712 while (!feof(fin)) {
713 if (strstr(incoming, wildcard)) {
714 matches++;
715 }
716 (void) fgets(incoming, MAX_STR_LEN - 1, fin);
717 }
718 paranoid_fclose(fin);
719 return (matches);
720}
721
722
723
724/**
725 * Determine the size (in KB) of @p dev in the mountlist in <tt>tmpdir</tt>/mountlist.txt.
726 * @param tmpdir The tempdir where the mountlist is stored.
727 * @param dev The device to search for.
728 * @return The size of the partition in KB.
729 */
730long size_of_partition_in_mountlist_K(char *tmpdir, char *dev)
731{
732 char command[MAX_STR_LEN];
733 char mountlist[MAX_STR_LEN];
734 char sz_res[MAX_STR_LEN];
735 long file_len_K;
736
737 sprintf(mountlist, "%s/mountlist.txt", tmpdir);
738 sprintf(command,
739 "grep \"%s \" %s/mountlist.txt | head -n1 | awk '{print $4}'",
740 dev, tmpdir);
741 log_it(command);
742 strcpy(sz_res, call_program_and_get_last_line_of_output(command));
743 file_len_K = atol(sz_res);
744 log_msg(4, "%s --> %s --> %ld", command, sz_res, file_len_K);
745 return (file_len_K);
746}
747
748/**
749 * Calculate the total size (in KB) of all the biggiefiles in this backup.
750 * @param bkpinfo The backup information structure. Only the @c bkpinfo->tmpdir field is used.
751 * @return The total size of all biggiefiles in KB.
752 */
753long size_of_all_biggiefiles_K()
754{
755 /*@ buffers ***************************************************** */
756 char *fname;
757 char *biggielist;
758 char *comment;
759 char *tmp;
760 char *command;
761
762 /*@ long ******************************************************** */
763 long scratchL = 0;
764 long file_len_K;
765
766 /*@ pointers *************************************************** */
767 FILE *fin = NULL;
768
769 /*@ end vars *************************************************** */
770
771 malloc_string(fname);
772 malloc_string(biggielist);
773 malloc_string(comment);
774 malloc_string(tmp);
775 malloc_string(command);
776 log_it("Calculating size of all biggiefiles (in total)");
777 sprintf(biggielist, "%s/biggielist.txt", bkpinfo->tmpdir);
778 log_it("biggielist = %s", biggielist);
779 if (!(fin = fopen(biggielist, "r"))) {
780 log_OS_error
781 ("Cannot open biggielist. OK, so estimate is based on filesets only.");
782 } else {
783 log_msg(4, "Reading it...");
784 for (fgets(fname, MAX_STR_LEN, fin); !feof(fin);
785 fgets(fname, MAX_STR_LEN, fin)) {
786 if (fname[strlen(fname) - 1] <= 32) {
787 fname[strlen(fname) - 1] = '\0';
788 }
789 if (0 == strncmp(fname, "/dev/", 5)) {
790 if (is_dev_an_NTFS_dev(fname)) {
791 if ( !find_home_of_exe("ntfsresize")) {
792 fatal_error("ntfsresize not found");
793 }
794 sprintf(command, "ntfsresize --force --info %s|grep '^You might resize at '|cut -d' ' -f5", fname);
795 log_it("command = %s", command);
796 strcpy (tmp, call_program_and_get_last_line_of_output(command));
797 log_it("res of it = %s", tmp);
798 file_len_K = atoll(tmp) / 1024L;
799 } else {
800 file_len_K = get_phys_size_of_drive(fname) * 1024L;
801 }
802 } else {
803 /* BERLIOS: more than long here ??? */
804 file_len_K = (long) (length_of_file(fname) / 1024);
805 }
806 if (file_len_K > 0) {
807 scratchL += file_len_K;
808 log_msg(4, "%s --> %ld K", fname, file_len_K);
809 }
810 sprintf(comment,
811 "After adding %s, scratchL+%ld now equals %ld", fname,
812 file_len_K, scratchL);
813 log_msg(4, comment);
814 if (feof(fin)) {
815 break;
816 }
817 }
818 }
819 log_it("Closing...");
820 paranoid_fclose(fin);
821 log_it("Finished calculating total size of all biggiefiles");
822 paranoid_free(fname);
823 paranoid_free(biggielist);
824 paranoid_free(comment);
825 paranoid_free(tmp);
826 paranoid_free(command);
827 return (scratchL);
828}
829
830/**
831 * Determine the amount of space (in KB) occupied by a mounted CD.
832 * This can also be used to find the space used for other directories.
833 * @param mountpt The mountpoint/directory to check.
834 * @return The amount of space occupied in KB.
835 */
836long long space_occupied_by_cd(char *mountpt)
837{
838 /*@ buffer ****************************************************** */
839 char tmp[MAX_STR_LEN];
840 char command[MAX_STR_LEN * 2];
841 long long llres;
842 /*@ pointers **************************************************** */
843 char *p;
844 FILE *fin;
845
846 /*@ end vars *************************************************** */
847
848 sprintf(command, "du -sk %s", mountpt);
849 errno = 0;
850 fin = popen(command, "r");
851 if (errno) {
852 log_it("popen() FAILED: command=%s, mountpt=%s, fin=%d, errno=%d, strerror=%s", command, mountpt, fin, errno, strerror(errno));
853 llres = 0;
854 } else {
855 (void) fgets(tmp, MAX_STR_LEN, fin);
856 paranoid_pclose(fin);
857 p = strchr(tmp, '\t');
858 if (p) {
859 *p = '\0';
860 }
861 for (p = tmp, llres = 0; *p != '\0'; p++) {
862 llres *= 10;
863 llres += (int) (*p - '0');
864 }
865 }
866
867 return (llres);
868}
869
870
871/**
872 * Update a CRC checksum to include another character.
873 * @param crc The original CRC checksum.
874 * @param c The character to add.
875 * @return The new CRC checksum.
876 * @ingroup utilityGroup
877 */
878unsigned int updcrc(unsigned int crc, unsigned int c)
879{
880 unsigned int tmp;
881 tmp = (crc >> 8) ^ c;
882 crc = (crc << 8) ^ crctttab[tmp & 255];
883 return crc;
884}
885
886/**
887 * Update a reverse CRC checksum to include another character.
888 * @param crc The original CRC checksum.
889 * @param c The character to add.
890 * @return The new CRC checksum.
891 * @ingroup utilityGroup
892 */
893unsigned int updcrcr(unsigned int crc, unsigned int c)
894{
895 unsigned int tmp;
896 tmp = crc ^ c;
897 crc = (crc >> 8) ^ crc16tab[tmp & 0xff];
898 return crc;
899}
900
901
902
903
904/**
905 * Check for an executable on the user's system; write a message to the
906 * screen and the log if we can't find it.
907 * @param fname The executable basename to look for.
908 * @return 0 if it's found, nonzero if not.
909 */
910int whine_if_not_found(char *fname)
911{
912 /*@ buffers *** */
913 char command[MAX_STR_LEN * 2];
914 char errorstr[MAX_STR_LEN];
915
916
917 sprintf(command, "which %s > /dev/null 2> /dev/null", fname);
918 sprintf(errorstr,
919 "Please install '%s'. I cannot find it on your system.",
920 fname);
921 if (system(command)) {
922 log_to_screen(errorstr);
923 log_to_screen
924 ("There may be hyperlink at http://www.mondorescue.com which");
925 log_to_screen("will take you to the relevant (missing) package.");
926 return (1);
927 } else {
928 return (0);
929 }
930}
931
932
933
934
935
936
937/**
938 * Create a data file at @p fname containing @p contents.
939 * The data actually can be multiple lines, despite the name.
940 * @param fname The file to create.
941 * @param contents The data to put in it.
942 * @return 0 for success, 1 for failure.
943 */
944int write_one_liner_data_file(char *fname, char *contents)
945{
946 /*@ pointers *************************************************** */
947 FILE *fout;
948 int res = 0;
949
950 /*@ end vars *************************************************** */
951
952 assert_string_is_neither_NULL_nor_zerolength(fname);
953 if (!contents) {
954 log_it("%d: Warning - writing NULL to %s", __LINE__, fname);
955 }
956 if (!(fout = fopen(fname, "w"))) {
957 log_it("fname=%s");
958 log_OS_error("Unable to openout fname");
959 return (1);
960 }
961 fprintf(fout, "%s\n", contents);
962 paranoid_fclose(fout);
963 return (res);
964}
965
966
967
968/**
969 * Read @p fname into @p contents.
970 * @param fname The file to read.
971 * @param contents Where to put its contents.
972 * @return 0 for success, nonzero for failure.
973 */
974int read_one_liner_data_file(char *fname, char *contents)
975{
976 /*@ pointers *************************************************** */
977 FILE *fin;
978 int res = 0;
979 int i;
980
981 /*@ end vars *************************************************** */
982
983 assert_string_is_neither_NULL_nor_zerolength(fname);
984 if (!contents) {
985 log_it("%d: Warning - reading NULL from %s", __LINE__, fname);
986 }
987 if (!(fin = fopen(fname, "r"))) {
988 log_it("fname=%s", fname);
989 log_OS_error("Unable to openin fname");
990 return (1);
991 }
992 fscanf(fin, "%s\n", contents);
993 i = strlen(contents);
994 if (i > 0 && contents[i - 1] < 32) {
995 contents[i - 1] = '\0';
996 }
997 paranoid_fclose(fin);
998 return (res);
999}
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009/**
1010 * Copy the files that Mondo/Mindi need to run to the scratchdir or tempdir.
1011 * Currently this includes: copy Mondo's home directory to scratchdir, untar "mondo_home/payload.tgz"
1012 * if it exists, copy LAST-FILELIST-NUMBER to scratchdir, copy mondorestore
1013 * and post-nuke.tgz (if it exists) to tmpdir, and run "hostname > scratchdir/HOSTNAME".
1014 * @param bkpinfo The backup information structure. Fields used:
1015 * - @c bkpinfo->postnuke_tarball
1016 * - @c bkpinfo->scratchdir
1017 * - @c bkpinfo->tmpdir
1018 */
1019void copy_mondo_and_mindi_stuff_to_scratchdir()
1020{
1021 /*@ Char buffers ** */
1022 char command[MAX_STR_LEN * 2];
1023 char tmp[MAX_STR_LEN];
1024 char old_pwd[MAX_STR_LEN];
1025
1026 mvaddstr_and_log_it(g_currentY, 0,
1027 "Copying Mondo's core files to the scratch directory");
1028
1029 log_msg(4, "g_mondo_home='%s'", g_mondo_home);
1030 if (strlen(g_mondo_home) < 2) {
1031 find_and_store_mondoarchives_home(g_mondo_home);
1032 }
1033 sprintf(command, CP_BIN " --parents -pRdf %s %s", g_mondo_home,
1034 bkpinfo->scratchdir);
1035
1036 log_msg(4, "command = %s", command);
1037 if (run_program_and_log_output(command, 1)) {
1038 fatal_error("Failed to copy Mondo's stuff to scratchdir");
1039 }
1040
1041 sprintf(tmp, "%s/payload.tgz", g_mondo_home);
1042 if (does_file_exist(tmp)) {
1043 log_it("Untarring payload %s to scratchdir %s", tmp,
1044 bkpinfo->scratchdir);
1045 (void) getcwd(old_pwd, MAX_STR_LEN - 1);
1046 chdir(bkpinfo->scratchdir);
1047 sprintf(command, "tar -zxvf %s", tmp);
1048 if (run_program_and_log_output(command, FALSE)) {
1049 fatal_error("Failed to untar payload");
1050 }
1051 chdir(old_pwd);
1052 }
1053
1054 sprintf(command, "cp -f %s/LAST-FILELIST-NUMBER %s", bkpinfo->tmpdir,
1055 bkpinfo->scratchdir);
1056
1057 if (run_program_and_log_output(command, FALSE)) {
1058 fatal_error("Failed to copy LAST-FILELIST-NUMBER to scratchdir");
1059 }
1060
1061 strcpy(tmp,
1062 call_program_and_get_last_line_of_output("which mondorestore"));
1063 if (!tmp[0]) {
1064 fatal_error
1065 ("'which mondorestore' returned null. Where's your mondorestore? `which` can't find it. That's odd. Did you install mondorestore?");
1066 }
1067 sprintf(command, "cp -f %s %s", tmp, bkpinfo->tmpdir);
1068 if (run_program_and_log_output(command, FALSE)) {
1069 fatal_error("Failed to copy mondorestore to tmpdir");
1070 }
1071
1072 sprintf(command, "hostname > %s/HOSTNAME", bkpinfo->scratchdir);
1073 paranoid_system(command);
1074
1075 if (bkpinfo->postnuke_tarball[0]) {
1076 sprintf(command, "cp -f %s %s/post-nuke.tgz",
1077 bkpinfo->postnuke_tarball, bkpinfo->tmpdir);
1078 if (run_program_and_log_output(command, FALSE)) {
1079 fatal_error("Unable to copy post-nuke tarball to tmpdir");
1080 }
1081 }
1082
1083
1084 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1085}
1086
1087
1088
1089
1090
1091/**
1092 * Store the client's NFS configuration in files to be restored at restore-time.
1093 * Assumes that @c bkpinfo->media_type = nfs, but does not check for this.
1094 * @param bkpinfo The backup information structure. Fields used:
1095 * - @c nfs_mount
1096 * - @c nfs_remote_dir
1097 * - @c tmpdir
1098 */
1099void store_nfs_config()
1100{
1101
1102 /*@ buffers ******** */
1103 char nfs_dev[MAX_STR_LEN];
1104 char mac_addr[MAX_STR_LEN];
1105 char nfs_mount[MAX_STR_LEN];
1106 char nfs_client_ipaddr[MAX_STR_LEN];
1107 char nfs_client_netmask[MAX_STR_LEN];
1108 char nfs_client_broadcast[MAX_STR_LEN];
1109 char nfs_client_defgw[MAX_STR_LEN];
1110 char nfs_server_ipaddr[MAX_STR_LEN];
1111 char tmp[MAX_STR_LEN];
1112 char command[MAX_STR_LEN * 2];
1113
1114 /*@ pointers ***** */
1115 char *p;
1116
1117 log_it("Storing NFS configuration");
1118 strcpy(tmp, bkpinfo->nfs_mount);
1119 p = strchr(tmp, ':');
1120 if (!p) {
1121 fatal_error
1122 ("NFS mount doesn't have a colon in it, e.g. 192.168.1.4:/home/nfs");
1123 }
1124 *(p++) = '\0';
1125 strcpy(nfs_server_ipaddr, tmp);
1126 strcpy(nfs_mount, p);
1127
1128 /* BERLIOS : there is a bug #67 here as it only considers the first NIC */
1129 sprintf(command,
1130 "ifconfig | tr '\n' '#' | sed s/##// | tr '#' ' ' | tr '' '\n' | head -n1 | cut -d' ' -f1");
1131 strcpy(nfs_dev, call_program_and_get_last_line_of_output(command));
1132 sprintf(command,
1133 "ifconfig | tr '\n' '#' | sed s/##// | tr '#' ' ' | tr '' '\\n' | head -n1 | tr -s '\t' ' ' | cut -d' ' -f7 | cut -d':' -f2");
1134 strcpy(nfs_client_ipaddr,
1135 call_program_and_get_last_line_of_output(command));
1136 sprintf(command,
1137 "ifconfig | tr '\n' '#' | sed s/##// | tr '#' ' ' | tr '' '\\n' | head -n1 | tr -s '\t' ' ' | cut -d' ' -f9 | cut -d':' -f2");
1138 strcpy(nfs_client_netmask,
1139 call_program_and_get_last_line_of_output(command));
1140 sprintf(command,
1141 "ifconfig | tr '\n' '#' | sed s/##// | tr '#' ' ' | tr '' '\\n' | head -n1 | tr -s '\t' ' ' | cut -d' ' -f8 | cut -d':' -f2");
1142 strcpy(nfs_client_broadcast,
1143 call_program_and_get_last_line_of_output(command));
1144 sprintf(command,
1145 "route -n | grep '^0.0.0.0' | awk '{print $2}'");
1146 strcpy(nfs_client_defgw,
1147 call_program_and_get_last_line_of_output(command));
1148 sprintf(tmp,
1149 "nfs_client_ipaddr=%s; nfs_server_ipaddr=%s; nfs_mount=%s",
1150 nfs_client_ipaddr, nfs_server_ipaddr, nfs_mount);
1151 if (strlen(nfs_dev) < 2) {
1152 fatal_error
1153 ("Unable to find ethN (eth0, eth1, ...) adapter via NFS mount you specified.");
1154 }
1155 /********
1156 * If the NFS device that found above is a bonded device,
1157 * we need to replace it with an ethN device or the
1158 * networking will not start during an NFS restore.
1159 *
1160 * If the NFS device in nfs_dev begins with the word "bond", or alb or aft
1161 * look for the corresponding slave ethN device and copy it to nfs_dev.
1162 * Using the common MAC address
1163 ********/
1164 if (!strncmp(nfs_dev, "bond", 4) || !strncmp(nfs_dev, "alb", 3) || !strncmp(nfs_dev, "aft", 3)) {
1165 log_to_screen("Found bonding device %s; looking for corresponding ethN slave device\n", nfs_dev);
1166 sprintf(command,
1167 "ifconfig %s | awk '{print $5}' | head -n1", nfs_dev);
1168 strcpy(mac_addr, call_program_and_get_last_line_of_output(command));
1169 sprintf(command,
1170 "ifconfig | grep -E '%s' | grep -v '%s' | head -n1 | cut -d' ' -f1", mac_addr,nfs_dev);
1171 strcpy(nfs_dev, call_program_and_get_last_line_of_output(command));
1172 log_to_screen("Replacing it with %s\n", nfs_dev);
1173 }
1174
1175 sprintf(tmp, "%s/NFS-DEV", bkpinfo->tmpdir);
1176 write_one_liner_data_file(tmp, nfs_dev);
1177
1178 sprintf(tmp, "%s/NFS-CLIENT-IPADDR", bkpinfo->tmpdir);
1179 write_one_liner_data_file(tmp, nfs_client_ipaddr);
1180 sprintf(tmp, "%s/NFS-CLIENT-NETMASK", bkpinfo->tmpdir);
1181 write_one_liner_data_file(tmp, nfs_client_netmask);
1182 sprintf(tmp, "%s/NFS-CLIENT-BROADCAST", bkpinfo->tmpdir);
1183 write_one_liner_data_file(tmp, nfs_client_broadcast);
1184 sprintf(tmp, "%s/NFS-CLIENT-DEFGW", bkpinfo->tmpdir);
1185 write_one_liner_data_file(tmp, nfs_client_defgw);
1186 sprintf(tmp, "%s/NFS-SERVER-IPADDR", bkpinfo->tmpdir);
1187 write_one_liner_data_file(tmp, nfs_server_ipaddr);
1188 sprintf(tmp, "%s/NFS-SERVER-MOUNT", bkpinfo->tmpdir);
1189 write_one_liner_data_file(tmp, bkpinfo->nfs_mount);
1190 sprintf(tmp, "%s/NFS-SERVER-PATH", bkpinfo->tmpdir);
1191 write_one_liner_data_file(tmp, bkpinfo->nfs_remote_dir);
1192 sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
1193 write_one_liner_data_file(tmp, bkpinfo->prefix);
1194 log_it("Finished storing NFS configuration");
1195}
1196
1197
1198
1199
1200
1201
1202/**
1203 * Determine the approximate number of media that the backup will take up,
1204 * and tell the user. The uncompressed size is estimated as size_of_all_biggiefiles_K()
1205 * plus (noof_sets x bkpinfo->optimal_set_size). The compression factor is estimated as
1206 * 2/3 for LZO and 1/2 for bzip2. The data is not saved anywhere. If there are any
1207 * "imagedevs", the estimate is not shown as it will be wildly inaccurate.
1208 * If there are more than 50 media estimated, the estimate will not be shown.
1209 * @param bkpinfo The backup information structure. Fields used:
1210 * - @c bkpinfo->backup_media_type
1211 * - @c bkpinfo->image_devs
1212 * - @c bkpinfo->media_size
1213 * - @c bkpinfo->optimal_set_size
1214 * - @c bkpinfo->use_lzo
1215 * @param noof_sets The number of filesets created.
1216 * @ingroup archiveGroup
1217 */
1218void
1219estimate_noof_media_required(long noof_sets)
1220{
1221 /*@ buffers *************** */
1222 char tmp[MAX_STR_LEN];
1223
1224 /*@ long long ************* */
1225 long long scratchLL;
1226
1227 if (bkpinfo->media_size[1] <= 0) {
1228 log_to_screen("Number of media required: UNKNOWN");
1229 return;
1230 }
1231
1232 log_it("Estimating number of media required...");
1233 scratchLL =
1234 (long long) (noof_sets) * (long long) (bkpinfo->optimal_set_size)
1235 + (long long) (size_of_all_biggiefiles_K());
1236 scratchLL = (scratchLL / 1024) / bkpinfo->media_size[1];
1237 scratchLL++;
1238 if (bkpinfo->use_lzo) {
1239 scratchLL = (scratchLL * 2) / 3;
1240 } else if (bkpinfo->use_gzip) {
1241 scratchLL = (scratchLL * 2) / 3;
1242 } else {
1243 scratchLL = scratchLL / 2;
1244 }
1245 if (!scratchLL) {
1246 scratchLL++;
1247 }
1248 if (scratchLL <= 1) {
1249 sprintf(tmp,
1250 "Your backup will probably occupy a single %s. Maybe two.",
1251 media_descriptor_string(bkpinfo->backup_media_type));
1252 } else if (scratchLL > 4) {
1253 sprintf(tmp,
1254 "Your backup will occupy one meeeeellion media! (maybe %s)",
1255 number_to_text((int) (scratchLL + 1)));
1256 } else {
1257 sprintf(tmp, "Your backup will occupy approximately %s media.",
1258 number_to_text((int) (scratchLL + 1)));
1259 }
1260 if (!bkpinfo->image_devs[0] && (scratchLL < 50)) {
1261 log_to_screen(tmp);
1262 }
1263}
1264
1265
1266/**
1267 * Get the last suffix of @p instr.
1268 * If @p instr was "httpd.log.gz", we would return "gz".
1269 * @param instr The filename to get the suffix of.
1270 * @return The suffix (without a dot), or "" if none.
1271 * @note The returned string points to static storage that will be overwritten with each call.
1272 */
1273char *sz_last_suffix(char *instr)
1274{
1275 static char outstr[MAX_STR_LEN];
1276 char *p;
1277
1278 p = strrchr(instr, '.');
1279 if (!p) {
1280 outstr[0] = '\0';
1281 } else {
1282 strcpy(outstr, p);
1283 }
1284 return (outstr);
1285}
1286
1287
1288/**
1289 * Determine whether a file is compressed. This is done
1290 * by reading through the "do-not-compress-these" file distributed with Mondo.
1291 * @param filename The file to check.
1292 * @return TRUE if it's compressed, FALSE if not.
1293 */
1294bool is_this_file_compressed(char *filename)
1295{
1296 char do_not_compress_these[MAX_STR_LEN];
1297 char tmp[MAX_STR_LEN];
1298 char *p;
1299 char *q = NULL;
1300
1301 q = strrchr(filename, '.');
1302 if (q == NULL) {
1303 return (FALSE);
1304 }
1305
1306 sprintf(tmp, "%s/do-not-compress-these", g_mondo_home);
1307 if (!does_file_exist(tmp)) {
1308 return (FALSE);
1309 }
1310 /* BERLIOS: This is just plain WRONG !! */
1311 strcpy(do_not_compress_these,last_line_of_file(tmp));
1312
1313 for (p = do_not_compress_these; p != NULL; p++) {
1314 strcpy(tmp, p);
1315 if (strchr(tmp, ' ')) {
1316 *(strchr(tmp, ' ')) = '\0';
1317 }
1318 if (!strcmp(q, tmp)) {
1319 return (TRUE);
1320 }
1321 if (!(p = strchr(p, ' '))) {
1322 break;
1323 }
1324 }
1325 return (FALSE);
1326}
1327
1328
1329
1330int mode_of_file(char *fname)
1331{
1332 struct stat buf;
1333
1334 if (lstat(fname, &buf)) {
1335 return (-1);
1336 } // error
1337 else {
1338 return (buf.st_mode);
1339 }
1340}
1341
1342
1343
1344
1345/**
1346 * Create a small script that mounts /boot, calls @c grub-install, and syncs the disks.
1347 * @param outfile Where to put the script.
1348 * @return 0 for success, 1 for failure.
1349 */
1350int make_grub_install_scriptlet(char *outfile)
1351{
1352 FILE *fout;
1353 char *tmp;
1354 int retval = 0;
1355
1356 malloc_string(tmp);
1357 if ((fout = fopen(outfile, "w"))) {
1358 fprintf(fout,
1359 "#!/bin/sh\n\nmount /boot > /dev/null 2> /dev/null\ngrub-install $@\nres=$?\nsync;sync;sync\nexit $res\n");
1360 paranoid_fclose(fout);
1361 log_msg(2, "Created %s", outfile);
1362 sprintf(tmp, "chmod +x %s", outfile);
1363 paranoid_system(tmp);
1364 retval = 0;
1365 } else {
1366 retval = 1;
1367 }
1368 paranoid_free(tmp);
1369 return (retval);
1370}
1371
1372/* @} - end fileGroup */
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