source: MondoRescue/branches/3.3/mondo/src/common/libmondo-tools.c@ 3871

Last change on this file since 3871 was 3871, checked in by Bruno Cornec, 4 months ago

Fix syntax issues
  • Property svn:keywords set to Id
File size: 40.6 KB
Line 
1/*
2 $Id: libmondo-tools.c 3871 2024-03-07 17:06:33Z bruno $
3*/
4
5
6/**
7 * @file
8 * Miscellaneous tools that didn't really fit anywhere else.
9 */
10
11#include "my-stuff.h"
12#include "mr_mem.h"
13#include "mr_sys.h"
14#include "mondostructures.h"
15
16#include "libmondo-gui-EXT.h"
17#include "libmondo-files-EXT.h"
18#include "libmondo-fork-EXT.h"
19#include "libmondo-raid-EXT.h"
20#include "libmondo-devices-EXT.h"
21#include <sys/socket.h>
22#include <netdb.h>
23#include <stdlib.h>
24#include <netinet/in.h>
25#include <arpa/inet.h>
26#include <sys/utsname.h>
27
28/*@unused@*/
29//static char cvsid[] = "$Id: libmondo-tools.c 3871 2024-03-07 17:06:33Z bruno $";
30
31extern int g_tape_buffer_size_MB;
32extern bool g_text_mode;
33extern int g_currentY;
34extern int g_current_media_number;
35extern char *MONDO_LOGFILE;
36
37/* Reference to global bkpinfo */
38extern struct s_bkpinfo *bkpinfo;
39
40/**
41 * @addtogroup globalGroup
42 * @{
43 */
44bool g_remount_cdrom_at_end; ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
45bool g_cd_recovery = FALSE; ///< TRUE if we're making an "autonuke" backup.
46double g_kernel_version;
47
48/**
49 * The place where /boot is mounted.
50 */
51char *g_boot_mountpt = NULL;
52
53/**
54 * The location of Mondo's home directory.
55 */
56extern char *g_mondo_home;
57
58/**
59 * The location where tmpfs is mounted, or "" if it's not mounted.
60char *g_tmpfs_mountpt = NULL;
61 */
62char *g_magicdev_command = NULL;
63
64/**
65 * The default maximum level to log messages at or below.
66 */
67int g_loglevel = DEFAULT_DEBUG_LEVEL;
68
69/* @} - end of globalGroup */
70
71
72extern pid_t g_buffer_pid;
73extern pid_t g_main_pid;
74
75extern t_bkptype g_backup_media_type;
76
77extern bool am_I_in_disaster_recovery_mode(void);
78
79/*-----------------------------------------------------------*/
80
81
82/**
83 * @addtogroup utilityGroup
84 * @{
85 */
86/**
87 * Assertion handler. Prints a friendly message to the user,
88 * offering to ignore all, dump core, break to debugger,
89 * exit, or ignore. Intended to be used with an assert() macro.
90 *
91 * @param file The file in which the assertion triggered.
92 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
93 * @param line The line number of the assert() statement.
94 * @param exp The expression that failed (as a string).
95 */
96void _mondo_assert_fail(const char *file,
97 const char *function, int line, const char *exp)
98{
99 static int ignoring_assertions = 0;
100 bool is_valid = TRUE;
101
102 log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line, function);
103 if (ignoring_assertions) {
104 log_it("Well, the user doesn't care...");
105 return;
106 }
107 if (!g_text_mode)
108 newtSuspend();
109 printf("ASSERTION FAILED: `%s'\n", exp);
110 printf("\tat %s:%d in %s\n\n", file, line, function);
111 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
112 do {
113 is_valid = TRUE;
114 switch (toupper(getchar())) {
115 case 'A': // ignore (A)ll
116 ignoring_assertions = 1;
117 break;
118 case 'B': // a(B)ort
119 signal(SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
120 raise(SIGABRT);
121 break; /* "can't get here" */
122 case 'D': // (D)ebug, aka asm("int 3")
123#ifdef __IA32__
124 __asm__ __volatile__("int $3"); // break to debugger
125#endif
126 break;
127 case 'E': // (E)xit
128 fatal_error("Failed assertion -- see above for details");
129 break; /* "can't get here" */
130 case 'I': // (I)gnore
131 break;
132 /* These next two work as follows:
133 the `default' catches the user's invalid choice and says so;
134 the '\n' catches the newline on the end and prints the prompt again.
135 */
136 case '\n':
137 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
138 break;
139 default:
140 is_valid = FALSE;
141 printf("Invalid choice.\n");
142 break;
143 }
144 } while (!is_valid);
145
146 if (ignoring_assertions) {
147 log_it("Ignoring ALL assertions from now on.");
148 } else {
149 log_it("Ignoring assertion: %s", exp);
150 }
151
152 getchar(); // skip \n
153
154 if (!g_text_mode)
155 newtResume();
156}
157
158/**
159 * Clean's up users' KDE desktops.
160 * @bug Details about this function are unknown.
161 */
162void clean_up_KDE_desktop_if_necessary(void)
163{
164 char *tmp = NULL;
165
166 mr_asprintf(tmp, "for i in `find /root /home -maxdepth 2 -type d -name Desktop -maxdepth 2`; do file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } else { print $0;};}' $file.old > $file ; fi ; done");
167 run_program_and_log_output(tmp, 5);
168 mr_free(tmp);
169}
170
171
172/**
173 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
174 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
175 *
176 * @param home_sz String to store the home directory ("" if it could not be found).
177 * @return 0 for success, nonzero for failure.
178 */
179int find_and_store_mondoarchives_home(char *home_sz)
180{
181 assert(home_sz != NULL);
182 strcpy(home_sz, MONDO_SHARE);
183 return (0);
184}
185
186
187char *get_architecture(void) {
188#ifdef __IA32__
189# ifdef __X86_64__
190 return ("x86_64");
191# else
192 return ("i386");
193# endif
194#endif
195#ifdef __IA64__
196 return ("ia64");
197#endif
198 return ("unknown");
199}
200
201
202char *get_uname_m(void) {
203
204 struct utsname utsn;
205 char *tmp = NULL;
206
207 uname(&utsn);
208 mr_asprintf(tmp, "%s", utsn.machine);
209 return (tmp);
210}
211
212
213
214double get_kernel_version(void)
215{
216 char *p = NULL;
217 char *tmp = NULL;
218 double d;
219#ifdef __FreeBSD__
220 // JOSH - FIXME :)
221 d = 5.2; // :-)
222#else
223 tmp = call_program_and_get_last_line_of_output("uname -r");
224 p = strchr(tmp, '.');
225 if (p) {
226 p = strchr(++p, '.');
227 if (p) {
228 while (*p) {
229 *p = *(p + 1);
230 p++;
231 }
232 }
233 }
234 d = atof(tmp);
235 mr_free(tmp);
236#endif
237 log_msg(1, "g_kernel_version = %f", d);
238
239 if (g_kernel_version < 2.6) {
240 fatal_error("Please use MondoRescue < 3.3.0 to support that old kernel or upgrade your distribution :-)");
241 }
242 return(d);
243}
244
245
246/**
247 * Get the current time.
248 * @return number of seconds since the epoch.
249 */
250long get_time()
251{
252 return (long) time((void *) 0);
253}
254
255
256/**
257 * Initialize a RAID volume structure, setting fields to zero. The
258 * actual hard drive is unaffected.
259 *
260 * @param raidrec The RAID volume structure to initialize.
261 * @note This function is system dependent.
262 */
263#ifdef __FreeBSD__
264void initialize_raidrec(struct vinum_volume *raidrec)
265{
266 int i, j;
267 raidrec->volname[0] = '\0';
268 raidrec->plexes = 0;
269 for (i = 0; i < 9; ++i) {
270 raidrec->plex[i].raidlevel = -1;
271 raidrec->plex[i].stripesize = 0;
272 raidrec->plex[i].subdisks = 0;
273 for (j = 0; j < 9; ++j) {
274 strcpy(raidrec->plex[i].sd[j].which_device, "");
275 }
276 }
277}
278#else
279void initialize_raidrec(struct raid_device_record *raidrec)
280{
281 assert(raidrec != NULL);
282 raidrec->raid_device[0] = '\0';
283 raidrec->raid_level = -9;
284 raidrec->persistent_superblock = 1;
285 raidrec->chunk_size = 64;
286 raidrec->parity = -1;
287 raidrec->data_disks.entries = 0;
288 raidrec->spare_disks.entries = 0;
289 raidrec->parity_disks.entries = 0;
290 raidrec->failed_disks.entries = 0;
291 raidrec->additional_vars.entries = 0;
292}
293#endif
294
295
296
297
298/**
299 * Insert modules that Mondo requires.
300 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
301 * @c msdosfs and @c ext2fs for FreeBSD.
302 */
303void insmod_crucial_modules(void)
304{
305#ifdef __FreeBSD__
306 paranoid_system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
307 paranoid_system("kldstat | grep ext2fs || kldload ext2fs 2> /dev/null");
308#else
309 paranoid_system("modprobe -a msdos vfat loop &> /dev/null");
310#endif
311}
312
313/* compute the final options for bootable media, considering the command and the boot type */
314char *mr_compute_uefi_string(char *isofs_cmd) {
315
316 char *uefistr = NULL;
317 char *mondo_mkisofs_sz = NULL;
318
319 /* real media */
320 if (strstr(isofs_cmd,"growisofs")) {
321 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
322 } else {
323 /* iso image */
324 if (bkpinfo->boot_type == UEFI) {
325 if (strstr(isofs_cmd,"xorriso")) {
326 /* xorriso needs another '-' before efi-boot */
327 mr_asprintf(uefistr, "%s -%s", MONDO_UEFI_PREFIX, MONDO_MKISOFS_UEFI);
328 } else {
329 mr_asprintf(uefistr, "%s %s", MONDO_UEFI_PREFIX, MONDO_MKISOFS_UEFI);
330 }
331 } else {
332 mr_asprintf(uefistr, "%s",MONDO_MKISOFS_CMS);
333 }
334 mr_asprintf(mondo_mkisofs_sz, "%s%s%s ", isofs_cmd, MONDO_MKISOFS_REGULAR_SYSLINUX, uefistr);
335 }
336
337 return(mondo_mkisofs_sz);
338}
339
340/**
341 * Finish configuring the backup information structure. Call this function
342 * to set the parameters that depend on those that can be given on the command
343 * line.
344 *
345 * @param bkpinfo The backup information structure. Fields modified/used:
346 * - Used: @c bkpinfo->backup_data
347 * - Used: @c bkpinfo->backup_media_type
348 * - Used: @c bkpinfo->cdrw_speed
349 * - Used: @c bkpinfo->compression_level
350 * - Used: @c bkpinfo->include_paths
351 * - Used: @c bkpinfo->prefix
352 * - Used: @c bkpinfo->isodir
353 * - Used: @c bkpinfo->manual_cd_tray
354 * - Used: @c bkpinfo->make_cd_use_lilo
355 * - Used: @c bkpinfo->media_device
356 * - Used: @c bkpinfo->netfs_mount
357 * - Used: @c bkpinfo->nonbootable_backup
358 * - Used: @c bkpinfo->scratchdir
359 * - Used: @c bkpinfo->tmpdir
360 * - Used: @c bkpinfo->use_lzo
361 * - Modified: @c bkpinfo->call_before_iso
362 * - Modified: @c bkpinfo->call_make_iso
363 * - Modified: @c bkpinfo->optimal_set_size
364 * - Modified: @c bkpinfo->zip_exe
365 * - Modified: @c bkpinfo->zip_suffix
366 *
367 * @return number of errors, or 0 for success.
368 * @note Also creates directories that are specified in the @c bkpinfo structure but
369 * do not exist.
370 */
371int post_param_configuration()
372{
373 char *extra_cdrom_params = NULL;
374 char *mondo_mkisofs_sz = NULL;
375 char *command = NULL;
376 char *isofs_cmd = NULL;
377 int retval = 0;
378 char *cdr_exe = NULL;
379 char *tmp = NULL;
380 char *call_before_iso_user = NULL;
381 char *iso_dev = NULL;
382 char *iso_mnt = NULL;
383 char *iso_tmp = NULL;
384 char *iso_dir = NULL;
385
386 assert(bkpinfo != NULL);
387
388 bkpinfo->optimal_set_size = (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) * 1024L;
389
390 log_msg(1, "Post-param");
391 if (bkpinfo->backup_media_type == tape) {
392 if (whine_if_not_found("mt") == 1) {
393 fatal_error("Please install the mt command");
394 }
395 log_msg(1, "Tape");
396 if (bkpinfo->media_device == NULL) {
397 return(1);
398 }
399 mr_asprintf(tmp, "mt -f %s status", bkpinfo->media_device);
400 log_msg(1, "tmp = '%s'", tmp);
401 if (run_program_and_log_output(tmp, 3)) {
402 mr_free(tmp);
403 fatal_error("Unable to open tape device. If you haven't specified it with -d, do so. If you already have, check your parameter. I think it's wrong.");
404 }
405 mr_free(tmp);
406 }
407 if (bkpinfo->backup_media_type == iso)
408 make_hole_for_dir(bkpinfo->isodir);
409
410 run_program_and_log_output("uname -a", 5);
411 run_program_and_log_output("cat /etc/*-release", 5);
412 run_program_and_log_output("cat /etc/*issue*", 5);
413#ifdef __FreeBSD__
414#else
415 run_program_and_log_output("cat /proc/cpuinfo", 5);
416 /*
417 run_program_and_log_output("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc", 5);
418 */
419#endif
420
421 if (bkpinfo->use_lzo) {
422 mr_asprintf(bkpinfo->zip_exe, "%s", "lzop");
423 mr_asprintf(bkpinfo->zip_suffix, "%s", "lzo");
424 } else if (bkpinfo->use_gzip) {
425 mr_asprintf(bkpinfo->zip_exe, "%s", "gzip");
426 mr_asprintf(bkpinfo->zip_suffix, "%s", "gz");
427 } else if (bkpinfo->use_lzma) {
428 mr_asprintf(bkpinfo->zip_exe, "%s", "xz");
429 mr_asprintf(bkpinfo->zip_suffix, "%s", "xz");
430 } else if (bkpinfo->compression_level != 0) {
431 mr_asprintf(bkpinfo->zip_exe, "%s", "bzip2");
432 mr_asprintf(bkpinfo->zip_suffix, "%s", "bz2");
433 } else {
434 mr_free(bkpinfo->zip_exe);
435 mr_free(bkpinfo->zip_suffix);
436 }
437
438// DVD
439
440 if (bkpinfo->backup_media_type == dvd) {
441 if ((cdr_exe = find_home_of_exe("growisofs")) == NULL) {
442 fatal_error("Please install growisofs.");
443 }
444 if (bkpinfo->nonbootable_backup) {
445 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
446 } else if
447#ifdef __FreeBSD__
448 (TRUE)
449#else
450 (bkpinfo->make_cd_use_lilo)
451#endif
452#ifdef __IA64__
453 {
454 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
455 }
456#else
457 {
458 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
459 }
460#endif
461 else {
462 mondo_mkisofs_sz = mr_compute_uefi_string(cdr_exe);
463 }
464 mr_free(cdr_exe);
465
466 if (bkpinfo->manual_cd_tray) {
467 fatal_error("Manual CD tray + DVD not supported yet.");
468 // -m isn't supported by growisofs, BTW...
469 } else {
470 mr_asprintf(bkpinfo->call_make_iso, "%s %s -Z %s . 2>> _ERR_", mondo_mkisofs_sz, "", bkpinfo->media_device);
471 }
472 mr_free(mondo_mkisofs_sz);
473 if (getenv ("SUDO_COMMAND")) {
474 mr_asprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
475 tmp = call_program_and_get_last_line_of_output(command);
476 mr_free(command);
477 if (!strcmp(tmp, "1")) {
478 mr_free(tmp);
479 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
480 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
481 }
482 mr_free(tmp);
483 }
484 log_msg(2, "call_make_iso (DVD res) is ... %s", bkpinfo->call_make_iso);
485 } // end of DVD code
486
487// CD-R or CD-RW
488 if (bkpinfo->backup_media_type == cdrw
489 || bkpinfo->backup_media_type == cdr) {
490 if (!bkpinfo->manual_cd_tray) {
491 mr_asprintf(extra_cdrom_params, "-waiti ");
492 }
493 if (bkpinfo->backup_media_type == cdrw) {
494 mr_asprintf(extra_cdrom_params, "blank=fast ");
495 }
496 if (extra_cdrom_params == NULL) {
497 // If not initialized earlier, do it now
498 mr_asprintf(extra_cdrom_params, " ");
499 }
500 if ((cdr_exe = find_home_of_exe("cdrecord")) == NULL) {
501 if ((cdr_exe = find_home_of_exe("wodim")) == NULL) {
502 if ((cdr_exe = find_home_of_exe("dvdrecord")) == NULL) {
503 fatal_error("Please install either cdrecord, wodim or dvdrecord.");
504 }
505 }
506 }
507 if ((tmp = find_home_of_exe("xorriso")) != NULL) {
508 mr_asprintf(isofs_cmd, "%s %s", tmp, MONDO_XORRISO_OPT);
509 } else if ((tmp = find_home_of_exe("genisoimage")) != NULL) {
510 mr_asprintf(isofs_cmd, "%s %s", tmp, MONDO_GENISOIMAGE_OPT);
511 } else if ((tmp = find_home_of_exe("mkisofs")) != NULL) {
512 mr_asprintf(isofs_cmd, "%s %s", tmp, MONDO_MKISOFS_OPT);
513 } else if ((tmp = find_home_of_exe("wodim")) != NULL) {
514 mr_asprintf(isofs_cmd, "%s %s", tmp, MONDO_WODIM_OPT);
515 } else {
516 fatal_error("Unable to find a command to create ISO among xorriso, genisoimage, mksiofs or wodim, please install one");
517 }
518 mr_free(tmp);
519
520 if (bkpinfo->nonbootable_backup) {
521 mr_asprintf(mondo_mkisofs_sz, "%s%s", isofs_cmd, MONDO_MKISOFS);
522 } else if
523#ifdef __FreeBSD__
524 (TRUE)
525#else
526 (bkpinfo->make_cd_use_lilo)
527#endif
528#ifdef __IA64__
529 {
530 mr_asprintf(mondo_mkisofs_sz, "%s%s ", isofs_cmd, MONDO_MKISOFS_REGULAR_ELILO);
531 }
532#else
533 {
534 mr_asprintf(mondo_mkisofs_sz, "%s%s ", isofs_cmd, MONDO_MKISOFS_REGULAR_LILO);
535 }
536#endif
537 else {
538 mondo_mkisofs_sz = mr_compute_uefi_string(isofs_cmd);
539 }
540 mr_free(isofs_cmd);
541
542 if (bkpinfo->manual_cd_tray) {
543 if (bkpinfo->call_before_iso == NULL) {
544 mr_asprintf(bkpinfo->call_before_iso, "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_", mondo_mkisofs_sz, bkpinfo->tmpdir);
545 } else {
546 mr_asprintf(call_before_iso_user, "%s", bkpinfo->call_before_iso);
547 mr_free(bkpinfo->call_before_iso);
548 mr_asprintf(bkpinfo->call_before_iso, "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )", mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
549 mr_free(call_before_iso_user);
550 }
551 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
552 mr_asprintf(bkpinfo->call_make_iso, "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS, cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject", extra_cdrom_params, bkpinfo->media_device, bkpinfo->cdrw_speed, bkpinfo->tmpdir);
553 } else {
554 mr_asprintf(bkpinfo->call_make_iso, "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -", mondo_mkisofs_sz, cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject", extra_cdrom_params, bkpinfo->media_device, bkpinfo->cdrw_speed);
555 }
556 mr_free(cdr_exe);
557 mr_free(mondo_mkisofs_sz);
558 mr_free(extra_cdrom_params);
559 } // end of CD code
560
561 if (bkpinfo->backup_media_type == iso) {
562
563/* Break up isodir into iso_mnt and iso_dir
564 * These will be used along with iso-dev at restore time
565 * to locate the ISOs where ever they're mounted
566 */
567
568 log_it("isodir = %s", bkpinfo->isodir);
569 mr_asprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
570 log_it("command = %s", command);
571 iso_dev = call_program_and_get_last_line_of_output(command);
572 log_it("res of it = %s", iso_dev);
573 mr_asprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
574 write_one_liner_data_file(tmp, iso_dev);
575 mr_free(tmp);
576 mr_free(command);
577
578 mr_asprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
579 mr_free(iso_dev);
580
581 log_it("command = %s", command);
582 iso_mnt = call_program_and_get_last_line_of_output(command);
583 log_it("res of it = %s", iso_mnt);
584 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
585 write_one_liner_data_file(tmp, iso_mnt);
586 mr_free(tmp);
587 mr_free(command);
588
589 log_it("iso_mnt: %s, %d", iso_mnt, strlen(iso_mnt));
590 mr_asprintf(iso_tmp, "%s", bkpinfo->isodir);
591 if (strlen(iso_tmp) < strlen(iso_mnt)) {
592 mr_asprintf(iso_dir, "%s", "");
593 } else {
594 // If iso_mnt is only / then iso_dir is the full dir
595 // (the formula bellow doesn't work in this case)
596 if (strcmp(iso_mnt, "/") == 0) {
597 mr_asprintf(iso_dir, "%s", iso_tmp);
598 // else it's a part of iso_tmp
599 } else {
600 mr_asprintf(iso_dir, "%s", iso_tmp + strlen(iso_mnt));
601 }
602 }
603 mr_free(iso_mnt);
604 mr_free(iso_tmp);
605
606 mr_asprintf(tmp, "%s/ISO-DIR", bkpinfo->tmpdir);
607 write_one_liner_data_file(tmp, iso_dir);
608 mr_free(tmp);
609
610 log_it("iso-dir: %s", iso_dir);
611 mr_free(iso_dir);
612
613 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
614 write_one_liner_data_file(tmp, bkpinfo->prefix);
615 mr_free(tmp);
616
617 log_it("iso-prefix: %s", bkpinfo->prefix);
618
619/* End patch */
620 } // end of iso code
621
622 if (bkpinfo->backup_media_type == netfs) {
623 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
624 write_one_liner_data_file(tmp, bkpinfo->prefix);
625 mr_free(tmp);
626
627 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
628 write_one_liner_data_file(tmp, bkpinfo->isodir);
629 mr_free(tmp);
630
631 mr_asprintf(tmp, "%s/ISO-DIR", bkpinfo->tmpdir);
632 write_one_liner_data_file(tmp, bkpinfo->netfs_remote_dir);
633 mr_free(tmp);
634
635 if (bkpinfo->netfs_mount) {
636 mr_asprintf(tmp, "%s/NETFS-SERVER-MOUNT", bkpinfo->tmpdir);
637 write_one_liner_data_file(tmp, bkpinfo->netfs_mount);
638 mr_free(tmp);
639 } else {
640 log_it("netfs_mount is NULL");
641 retval++;
642 }
643 }
644
645 log_it("Finished processing incoming params");
646 if (retval) {
647 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
648 }
649 if (bkpinfo->include_paths == NULL) {
650 mr_asprintf(bkpinfo->include_paths, "/");
651 }
652 g_backup_media_type = bkpinfo->backup_media_type;
653 return (retval);
654}
655
656
657
658/**
659 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
660 * Seeds the random-number generator, loads important modules, checks the sanity
661 * of the user's Linux distribution, and deletes logfile.
662 * @param bkpinfo The backup information structure. Will be initialized.
663 * @return number of errors (0 for success)
664 */
665int pre_param_configuration()
666{
667 int res = 0;
668 char *tmp = NULL;
669
670 make_hole_for_dir(MNT_CDROM);
671 assert(bkpinfo != NULL);
672 srandom((unsigned long) (time(NULL)));
673 insmod_crucial_modules();
674 if (bkpinfo->disaster_recovery) {
675 if (!does_nonMS_partition_exist()) {
676 fatal_error("I am in disaster recovery mode\nPlease don't run mondoarchive.");
677 }
678 }
679
680 mr_asprintf(tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
681 run_program_and_log_output(tmp, FALSE);
682 paranoid_free(tmp);
683 if (find_and_store_mondoarchives_home(g_mondo_home)) {
684 fprintf(stderr, "Cannot find Mondo's homedir. I think you have >1 'mondo' directory on your hard disk. Please delete the superfluous 'mondo' directories and try again\n");
685 res++;
686 return (res);
687 }
688 res += some_basic_system_sanity_checks();
689 if (res) {
690 log_it("Your distribution did not pass Mondo's sanity test.");
691 }
692 g_current_media_number = 1;
693 return (res);
694}
695
696/* From busybox under GPLv2 */
697#ifndef HAVE_MKDTEMP
698/* This is now actually part of POSIX.1, but was only added in 2008 */
699char* mkdtemp(char *template)
700{
701 if (mkstemp(template) == -1) {
702 return NULL;
703 }
704 unlink(template);
705 if (mkdir(template, 0700) != 0) {
706 return NULL;
707 }
708 return template;
709}
710#endif
711
712void setup_tmpdir(char *path) {
713
714 char *tmp = NULL;
715
716 if (bkpinfo->tmpdir != NULL) {
717 /* purging a potential old tmpdir */
718 if (chdir("/tmp")) {
719 // FIXME
720 }
721 if (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL) {
722 log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
723 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->tmpdir);
724 } else {
725 log_it("Purging old tmpdir %s/mondo.tmp.*", bkpinfo->tmpdir);
726 mr_asprintf(tmp,"rm -Rf %s/mondo.tmp.*",bkpinfo->tmpdir);
727 }
728 paranoid_system(tmp);
729 mr_free(tmp);
730 }
731
732 /* Always take in account arg first, then env, then default */
733 if (path != NULL) {
734 mr_system("mkdir -p %s",path);
735 log_it("Created temporary directory %s", path);
736 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", path);
737 } else if (getenv("TMPDIR")) {
738 mr_system("mkdir -p %s",getenv("TMPDIR"));
739 log_it("Created temporary directory %s", getenv("TMPDIR"));
740 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
741 } else if (getenv("MRTMP")) {
742 mr_system("mkdir -p %s",getenv("MRTMP"));
743 log_it("Created temporary directory %s", getenv("MRTMP"));
744 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("MRTMP"));
745 } else {
746 mr_asprintf(tmp, "/tmp/mondo.tmp.XXXXXX");
747 }
748 mr_free(bkpinfo->tmpdir);
749 bkpinfo->tmpdir = mkdtemp(tmp);
750 if (bkpinfo->tmpdir == NULL) {
751 printf("Failed to create global tmp directory %s for Mondo.",tmp);
752 mr_free(tmp);
753 finish(-1);
754 }
755 log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
756 mr_system("mkdir -p %s/tmpfs", bkpinfo->tmpdir);
757}
758
759void setup_scratchdir(char *path) {
760
761 char *tmp = NULL;
762
763 if (bkpinfo->scratchdir != NULL) {
764 /* purging a potential old scratchdir */
765 if (chdir("/tmp")) {
766 // FIXME
767 }
768 if (strstr(bkpinfo->scratchdir,"mondo.scratch.") != NULL) {
769 log_it("Purging old scratchdir %s", bkpinfo->scratchdir);
770 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->scratchdir);
771 } else {
772 log_it("Purging old scratchdir %s/mondo.scratch.*", bkpinfo->scratchdir);
773 mr_asprintf(tmp,"rm -Rf %s/mondo.scratch.*",bkpinfo->scratchdir);
774 }
775 paranoid_system(tmp);
776 mr_free(tmp);
777 }
778
779 /* Always take in account arg first, then env, then default */
780 if (path != NULL) {
781 mr_system("mkdir -p %s",path);
782 log_it("Created scratch directory %s", path);
783 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", path);
784 } else if (getenv("MRSCRATCH")) {
785 mr_system("mkdir -p %s",getenv("MRSCRATCH"));
786 log_it("Created scratch directory %s", getenv("MRSCRATCH"));
787 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", getenv("MRSCRATCH"));
788 } else {
789 mr_asprintf(tmp, "/tmp/mondo.scratch.XXXXXX");
790 }
791 mr_free(bkpinfo->scratchdir);
792 bkpinfo->scratchdir = mkdtemp(tmp);
793 if (bkpinfo->scratchdir == NULL) {
794 log_it("Failed to create global scratch directory %s for Mondo.",tmp);
795 mr_free(tmp);
796 finish(-1);
797 }
798 log_it("bkpinfo->scratchdir is being set to %s", bkpinfo->scratchdir);
799 mr_system("mkdir -p %s", bkpinfo->scratchdir);
800}
801
802
803/**
804 * Reset all fields of the backup information structure to a sensible default.
805 * @param bkpinfo The @c bkpinfo to reset.
806 */
807void reset_bkpinfo()
808{
809 assert(bkpinfo != NULL);
810 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
811
812 bkpinfo->media_device = NULL;
813 bkpinfo->media_size = -1;
814 bkpinfo->boot_loader = '\0';
815 bkpinfo->boot_device = NULL;
816 bkpinfo->zip_exe = NULL;
817 bkpinfo->zip_suffix = NULL;
818 bkpinfo->image_devs = NULL;
819 bkpinfo->compression_level = 3;
820 bkpinfo->use_lzo = FALSE;
821 bkpinfo->use_gzip = FALSE;
822 bkpinfo->use_lzma = FALSE;
823 bkpinfo->verify_data = FALSE;
824 bkpinfo->backup_data = FALSE;
825 bkpinfo->restore_data = FALSE;
826 bkpinfo->use_star = FALSE;
827 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
828
829 /* We need tmpdir as early as possible for further function calls */
830 bkpinfo->tmpdir = NULL; // Really setup just after
831 bkpinfo->scratchdir = NULL; // Really setup just after
832 setup_tmpdir(NULL);
833 setup_scratchdir(NULL);
834
835 bkpinfo->disaster_recovery = am_I_in_disaster_recovery_mode();
836 if (bkpinfo->disaster_recovery) {
837 mr_asprintf(bkpinfo->isodir, "%s", "/");
838 } else {
839 mr_asprintf(bkpinfo->isodir, "%s", MONDO_CACHE);
840 }
841 mr_asprintf(bkpinfo->prefix, "%s", STD_PREFIX);
842 bkpinfo->optimal_set_size = 0L;
843 bkpinfo->backup_media_type = none;
844 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
845 bkpinfo->exclude_paths = NULL;
846 bkpinfo->include_paths = NULL;
847 bkpinfo->exclude_devs = NULL;
848 bkpinfo->restore_path = NULL;
849 bkpinfo->call_before_iso = NULL;
850 bkpinfo->call_make_iso = NULL;
851 bkpinfo->call_burn_iso = NULL;
852 bkpinfo->call_after_iso = NULL;
853 bkpinfo->kernel_path = NULL;
854 bkpinfo->netfs_mount = NULL;
855 bkpinfo->netfs_proto = NULL;
856 bkpinfo->netfs_user = NULL;
857 bkpinfo->netfs_remote_dir = NULL;
858 bkpinfo->postnuke_tarball = NULL;
859 bkpinfo->subdir = NULL;
860 bkpinfo->wipe_media_first = FALSE;
861 bkpinfo->differential = 0;
862 bkpinfo->please_dont_eject = FALSE;
863 bkpinfo->cdrw_speed = 0;
864 bkpinfo->manual_cd_tray = FALSE;
865 bkpinfo->nonbootable_backup = FALSE;
866 bkpinfo->make_cd_use_lilo = FALSE;
867 bkpinfo->use_obdr = FALSE;
868 bkpinfo->restore_mode = interactive;
869 bkpinfo->boot_type = BIOS;
870}
871
872
873/**
874 * Get the remaining free space (in MB) on @p partition.
875 * @param partition The partition to check free space on (either a device or a mountpoint).
876 * @return The free space on @p partition, in MB.
877 */
878long free_space_on_given_partition(char *partition)
879{
880 char *out_sz = NULL;
881 char *command = NULL;
882 long res;
883
884 assert_string_is_neither_NULL_nor_zerolength(partition);
885
886 mr_asprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
887 if (system(command)) {
888 mr_free(command);
889 return (-1);
890 } // partition does not exist
891 mr_free(command);
892
893 mr_asprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4", partition);
894 out_sz = call_program_and_get_last_line_of_output(command);
895 mr_free(command);
896
897 if (strlen(out_sz) == 0) {
898 mr_free(out_sz);
899 return (-1);
900 } // error within df, probably
901 res = atol(out_sz);
902 mr_free(out_sz);
903 return (res);
904}
905
906
907
908/**
909 * Check the user's system for sanity. Checks performed:
910 * - make sure user has enough RAM (32mb required, 64mb recommended)
911 * - make sure user has enough free space in @c /
912 * - check kernel for ramdisk support
913 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
914 * - make sure CD-ROM is unmounted
915 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
916 *
917 * @return number of problems with the user's setup (0 for success)
918 */
919int some_basic_system_sanity_checks()
920{
921
922 /*@ buffers ************ */
923 char *tmp = NULL;
924
925 /*@ int's *************** */
926 int retval = 0;
927
928 mvaddstr_and_log_it(g_currentY, 0, "Checking sanity of your Linux distribution");
929#ifndef __FreeBSD__
930 if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
931 && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
932 log_it("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
933 run_program_and_log_output("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
934 }
935 tmp = call_program_and_get_last_line_of_output("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2");
936 if (atol(tmp) < 35000) {
937 retval++;
938 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
939 }
940 if (atol(tmp) < 66000) {
941 log_to_screen("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
942 }
943 mr_free(tmp);
944#endif
945
946 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
947 retval++;
948 log_to_screen("Unable to find " MKE2FS_OR_NEWFS " in system path.");
949 fatal_error("Please use \"su -\", not \"su\" to become root. OK?\n...and please don't e-mail the mailing list about this. Just read the message. :)");
950 }
951#ifndef __FreeBSD__
952 if (run_program_and_log_output("grep ramdisk /proc/devices", FALSE)) {
953 /* Some SuSE have ramdisk as modules, so insert it first, then test again */
954 run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
955 if (run_program_and_log_output("grep ramdisk /proc/devices", FALSE)) {
956 if (!ask_me_yes_or_no("Your kernel has no ramdisk support. That's mind-numbingly stupid but I'll allow it if you're planning to use another kernel. Are you?")) {
957 // retval++;
958 log_to_screen("It looks as if your kernel lacks ramdisk and initrd support.");
959 log_to_screen("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
960 }
961 }
962 }
963#endif
964 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
965 if (system("which xorriso > /dev/null 2> /dev/null")) {
966 if (system("which genisoimage > /dev/null 2> /dev/null")) {
967 retval += whine_if_not_found("mkisofs");
968 }
969 }
970 if (system("which wodim > /dev/null 2> /dev/null")) {
971 retval += whine_if_not_found("cdrecord");
972 }
973 retval += whine_if_not_found("bzip2");
974 retval += whine_if_not_found("gzip");
975 retval += whine_if_not_found("cmp");
976 retval += whine_if_not_found("awk");
977 retval += whine_if_not_found("md5sum");
978 retval += whine_if_not_found("strings");
979 retval += whine_if_not_found("mindi");
980 retval += whine_if_not_found("buffer");
981
982 // abort if Windows partition but no ms-sys and parted
983 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
984 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -Ew efi", 0)) {
985 log_to_screen("I think you have a EFI/UEFI partition.");
986 } else {
987 log_to_screen("I think you have a Windows 9x partition.");
988 }
989 retval += whine_if_not_found("parted");
990 }
991
992 run_program_and_log_output("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
993 tmp = call_program_and_get_last_line_of_output("mount | grep -E 'cdr(om|w)'");
994 if (strcmp("", tmp)) {
995 if (strstr(tmp, "autofs")) {
996 log_to_screen("Your CD-ROM is mounted via autofs. I therefore cannot tell");
997 log_to_screen("if a CD actually is inserted. If a CD is inserted, please");
998 log_to_screen("eject it. Thank you.");
999 log_it("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1000 } else
1001 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1002 retval++;
1003 mr_free(tmp);
1004 fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
1005 }
1006 }
1007 mr_free(tmp);
1008
1009 run_program_and_log_output("cat /etc/fstab", 5);
1010#ifdef __FreeBSD__
1011 run_program_and_log_output("vinum printconfig", 5);
1012#else
1013 run_program_and_log_output("cat /etc/raidtab", 5);
1014#endif
1015
1016 if (run_program_and_log_output("mindi -V", 1)) {
1017 log_to_screen("Could not ascertain mindi's version number.");
1018 log_to_screen("You have not installed Mondo and/or Mindi properly.");
1019 log_to_screen("Please uninstall and reinstall them both.");
1020 fatal_error("Please reinstall Mondo and Mindi.");
1021 }
1022 mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1023 if (run_program_and_log_output(tmp, 5)) {
1024 log_to_screen("%s failed for some reason.", tmp);
1025 mr_free(tmp);
1026 log_to_screen("Please run that command by hand and examine "MINDI_LOGFILE);
1027 log_to_screen("for more information. Perhaps your /etc/fstab file is insane.");
1028 log_to_screen("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1029 retval++;
1030 }
1031 mr_free(tmp);
1032
1033 if (!run_program_and_log_output("mr-parted2fdisk -l 2>/dev/null | grep -i raid", 1) && !does_file_exist("/etc/raidtab")) {
1034 log_to_screen("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1035 create_raidtab_from_mdstat(MDSTAT_FILE,"/etc/raidtab");
1036 }
1037
1038 if (retval) {
1039 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1040 } else {
1041 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1042 }
1043 return (retval);
1044}
1045
1046/**
1047 * Retrieve the line containing @p label from the config file.
1048 * @param config_file The file to read from, usually @c /tmp/mondorestore.cfg.
1049 * @param label What to read from the file.
1050 * @param value Where to put it.
1051 * @return 0 for success, 1 for failure.
1052 */
1053int read_cfg_var(char *config_file, char *label, char *value)
1054{
1055 /*@ buffer ****************************************************** */
1056 char *command = NULL;
1057 char *tmp = NULL;
1058
1059 /*@ end vars *************************************************** */
1060
1061 assert_string_is_neither_NULL_nor_zerolength(config_file);
1062 assert_string_is_neither_NULL_nor_zerolength(label);
1063 if (!does_file_exist(config_file)) {
1064 log_to_screen("(read_cfg_var) Cannot find %s config file", config_file);
1065 value[0] = '\0';
1066 return (1);
1067 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1068 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1069 return (0);
1070 } else {
1071 mr_asprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1072 tmp = call_program_and_get_last_line_of_output(command);
1073 strcpy(value, tmp);
1074 mr_free(command);
1075
1076 log_msg(4, "Configuration item %s is %s", label, value);
1077 if (strlen(value) == 0) {
1078 return (1);
1079 } else {
1080 return (0);
1081 }
1082 }
1083}
1084
1085
1086
1087/**
1088 * Remount @c supermount if it was unmounted earlier.
1089 */
1090void remount_supermounts_if_necessary()
1091{
1092 if (g_remount_cdrom_at_end) {
1093 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1094 }
1095}
1096
1097/**
1098 * Unmount @c supermount if it's mounted.
1099 */
1100void unmount_supermounts_if_necessary()
1101{
1102 if (run_program_and_log_output
1103 ("mount | grep cdrom | grep super", FALSE) == 0) {
1104 g_remount_cdrom_at_end = TRUE;
1105 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1106 }
1107}
1108
1109/**
1110 * Whether we had to stop autofs (if so, restart it at end).
1111 */
1112bool g_autofs_stopped = FALSE;
1113
1114/**
1115 * Path to the autofs initscript ("" if none exists).
1116 */
1117char g_autofs_exe[MAX_STR_LEN];
1118
1119/**
1120 * Autofs initscript in Xandros Linux distribution.
1121 */
1122#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1123
1124/**
1125 * Autofs initscript in most Linux distributions.
1126 */
1127#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1128
1129/**
1130 * If autofs is mounted, stop it (restart at end).
1131 */
1132void stop_autofs_if_necessary()
1133{
1134 char *tmp = NULL;
1135
1136 g_autofs_exe[0] = '\0';
1137 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1138 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1139 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1140 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1141 }
1142
1143 if (!g_autofs_exe[0]) {
1144 log_msg(3, "No autofs detected.");
1145 } else {
1146 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1147 // FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1148 mr_asprintf(tmp, "%s stop", g_autofs_exe);
1149 if (run_program_and_log_output(tmp, 2)) {
1150 log_it("Failed to stop autofs - I assume it wasn't running");
1151 } else {
1152 g_autofs_stopped = TRUE;
1153 log_it("Stopped autofs OK");
1154 }
1155 mr_free(tmp);
1156 }
1157}
1158
1159/**
1160 * If autofs was stopped earlier, restart it.
1161 */
1162void restart_autofs_if_necessary()
1163{
1164 char *tmp = NULL;
1165
1166 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1167 log_msg(3, "No autofs detected.");
1168 return;
1169 }
1170 mr_asprintf(tmp, "%s start", g_autofs_exe);
1171 if (run_program_and_log_output(tmp, 2)) {
1172 log_it("Failed to start autofs");
1173 } else {
1174 g_autofs_stopped = FALSE;
1175 log_it("Started autofs OK");
1176 }
1177 mr_free(tmp);
1178}
1179
1180
1181/**
1182 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1183 */
1184void mount_boot_if_necessary() {
1185 char *tmp = NULL;
1186 char *command = NULL;
1187
1188 log_msg(1, "Started sub");
1189 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1190 g_boot_mountpt[0] = '\0';
1191 log_msg(4, "Done. Great. Setting command to something");
1192 mr_asprintf(command, "%s", "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1193 log_msg(4, "Cool. Command = '%s'", command);
1194 tmp = call_program_and_get_last_line_of_output(command);
1195 mr_free(command);
1196
1197 log_msg(4, "tmp = '%s'", tmp);
1198 log_it("/boot is at %s according to /etc/fstab", tmp);
1199 mr_asprintf(command, "mount | grep -Ew '/boot'");
1200 mr_free(tmp);
1201
1202 tmp = call_program_and_get_last_line_of_output(command);
1203 mr_free(command);
1204
1205 if (!strcmp(tmp,"")) {
1206 if ((strstr(tmp, "LABEL=") != NULL) || (strstr(tmp,"UUID=") != NULL)) {
1207 if (!run_program_and_log_output("mount /boot", 5)) {
1208 strcpy(g_boot_mountpt, "/boot");
1209 log_msg(1, "Mounted /boot");
1210 } else {
1211 log_it("...ignored cos it's a label or uuid :-)");
1212 }
1213 } else {
1214 mr_asprintf(command, "mount | grep -E '^%s'", tmp);
1215 log_msg(3, "command = %s", command);
1216 if (run_program_and_log_output(command, 5)) {
1217 strcpy(g_boot_mountpt, tmp);
1218 mr_free(tmp);
1219 log_it("%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1220
1221 mr_asprintf(tmp, "mount %s", g_boot_mountpt);
1222 if (run_program_and_log_output(tmp, 5)) {
1223 g_boot_mountpt[0] = '\0';
1224 log_msg(1, "Plan B");
1225 if (!run_program_and_log_output("mount /boot", 5)) {
1226 strcpy(g_boot_mountpt, "/boot");
1227 log_msg(1, "Plan B worked");
1228 } else {
1229 log_msg(1,
1230 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1231 }
1232 }
1233 }
1234 mr_free(command);
1235 }
1236 }
1237 mr_free(tmp);
1238 log_msg(1, "Ended sub");
1239}
1240
1241
1242/**
1243 * If we mounted /boot earlier, unmount it.
1244 */
1245void unmount_boot_if_necessary()
1246{
1247 char *tmp = NULL;
1248
1249 log_msg(3, "starting");
1250 if (g_boot_mountpt[0]) {
1251 mr_asprintf(tmp, "umount %s", g_boot_mountpt);
1252 if (run_program_and_log_output(tmp, 5)) {
1253 log_it("WARNING - unable to unmount /boot");
1254 }
1255 mr_free(tmp);
1256 }
1257 log_msg(3, "leaving");
1258}
1259
1260
1261
1262/**
1263 * Write a line to a configuration file. Writes a line of the form,
1264 * @c label @c value.
1265 * @param config_file The file to write to. Usually @c mondorestore.cfg.
1266 * @param label What to call this bit of data you're writing.
1267 * @param value The bit of data you're writing.
1268 * @return 0 for success, 1 for failure.
1269 */
1270int write_cfg_var(char *config_file, char *label, char *value)
1271{
1272 /*@ buffers ***************************************************** */
1273 char *command = NULL;
1274 char *tempfile = NULL;
1275
1276
1277 /*@ end vars *************************************************** */
1278 assert_string_is_neither_NULL_nor_zerolength(config_file);
1279 assert_string_is_neither_NULL_nor_zerolength(label);
1280 assert(value != NULL);
1281 if (!does_file_exist(config_file)) {
1282 log_to_screen("(write_cfg_file) Cannot find %s config file", config_file);
1283 return (1);
1284 }
1285 mr_asprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1286 if (does_file_exist(config_file)) {
1287 mr_asprintf(command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1288 paranoid_system(command);
1289 mr_free(command);
1290 }
1291 mr_asprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1292 paranoid_system(command);
1293 mr_free(command);
1294
1295 mr_asprintf(command, "mv -f %s %s", tempfile, config_file);
1296 paranoid_system(command);
1297 mr_free(command);
1298 unlink(tempfile);
1299 mr_free(tempfile);
1300 return (0);
1301}
1302
1303
1304/**
1305 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1306 * information to the logfile.
1307 */
1308void standard_log_debug_msg(int debug_level, const char *szFile, const char *szFunction, int nLine, const char *fmt, ...) {
1309
1310 va_list args;
1311 static int depth = 0;
1312 FILE *fout;
1313
1314 if (depth > 5) {
1315 depth--;
1316 return;
1317 }
1318 depth++;
1319
1320 if (debug_level <= g_loglevel) {
1321 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1322 return;
1323 }
1324
1325 // add tabs to distinguish log levels
1326 if (debug_level > 0) {
1327 fprintf(fout, "DBG%d: ", debug_level);
1328 if (getpid() == g_main_pid)
1329 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1330 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1331 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1332 else
1333 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1334 } else {
1335 fprintf(fout, "INFO: ");
1336 }
1337 va_start(args, fmt);
1338 vfprintf(fout, fmt, args);
1339 va_end(args);
1340
1341 fprintf(fout, "\n");
1342 paranoid_fclose(fout);
1343 }
1344 depth--;
1345}
1346
1347/**
1348 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1349 */
1350void (*log_debug_msg) (int, const char *, const char *, int, const char *, ...) = standard_log_debug_msg;
1351
1352
1353/**
1354 * Allocate or free important globals, depending on @p mal.
1355 * @param mal If TRUE, malloc; if FALSE, free.
1356 */
1357void do_libmondo_global_strings_thing(int mal)
1358{
1359 if (mal) {
1360 malloc_string(g_boot_mountpt);
1361 malloc_string(g_mondo_home);
1362 malloc_string(g_magicdev_command);
1363 } else {
1364 paranoid_free(g_boot_mountpt);
1365 paranoid_free(g_mondo_home);
1366 paranoid_free(g_magicdev_command);
1367 }
1368}
1369
1370/**
1371 * Allocate important globals.
1372 * @see do_libmondo_global_strings_thing
1373 */
1374void malloc_libmondo_global_strings(void)
1375{
1376 do_libmondo_global_strings_thing(1);
1377}
1378
1379/**
1380 * Free important globals.
1381 * @see do_libmondo_global_strings_thing
1382 */
1383void free_libmondo_global_strings(void)
1384{
1385 do_libmondo_global_strings_thing(0);
1386}
1387
1388
1389
1390/**
1391 * Stop @c magicdev if it's running.
1392 * The command used to start it is saved in @p g_magicdev_command.
1393 */
1394void stop_magicdev_if_necessary()
1395{
1396 char *tmp = NULL;
1397
1398 tmp = call_program_and_get_last_line_of_output("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99");
1399 strcpy(g_magicdev_command, tmp);
1400 if (g_magicdev_command[0]) {
1401 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1402 paranoid_system("killall magicdev");
1403 }
1404 mr_free(tmp);
1405}
1406
1407
1408/**
1409 * Restart magicdev if it was stopped.
1410 */
1411void restart_magicdev_if_necessary()
1412{
1413 char *tmp = NULL;
1414
1415 if (g_magicdev_command && g_magicdev_command[0]) {
1416 mr_asprintf(tmp, "%s &", g_magicdev_command);
1417 paranoid_system(tmp);
1418 mr_free(tmp);
1419 }
1420}
1421
1422/* @} - end of utilityGroup */
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