source: MondoRescue/branches/3.2/mondo/src/common/libmondo-tools.c@ 3500

Last change on this file since 3500 was 3500, checked in by Bruno Cornec, 8 years ago
  • Use mr_system to create temp and scratch dir if they do not exist
  • Property svn:keywords set to Id
File size: 39.5 KB
Line 
1/*
2 $Id: libmondo-tools.c 3500 2016-02-09 01:42:10Z 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#include "lib-common-externs.h"
16#include "libmondo-tools.h"
17#include "libmondo-gui-EXT.h"
18#include "libmondo-files-EXT.h"
19#include "libmondo-fork-EXT.h"
20#include "libmondo-raid-EXT.h"
21#include "libmondo-devices-EXT.h"
22#include <sys/socket.h>
23#include <netdb.h>
24#include <stdlib.h>
25#include <netinet/in.h>
26#include <arpa/inet.h>
27#include <sys/utsname.h>
28
29/*@unused@*/
30//static char cvsid[] = "$Id: libmondo-tools.c 3500 2016-02-09 01:42:10Z bruno $";
31
32extern int g_tape_buffer_size_MB;
33extern bool g_text_mode;
34extern int g_currentY;
35extern int g_current_media_number;
36extern char *MONDO_LOGFILE;
37
38/* Reference to global bkpinfo */
39extern struct s_bkpinfo *bkpinfo;
40
41/**
42 * @addtogroup globalGroup
43 * @{
44 */
45bool g_remount_cdrom_at_end, ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
46 g_remount_floppy_at_end; ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
47bool g_cd_recovery = FALSE; ///< TRUE if we're making an "autonuke" backup.
48double g_kernel_version;
49
50/**
51 * The place where /boot is mounted.
52 */
53char *g_boot_mountpt = NULL;
54
55/**
56 * The location of Mondo's home directory.
57 */
58char *g_mondo_home = NULL;
59
60/**
61 * The serial string (used to differentiate between backups) of the current backup.
62 */
63extern char *g_serial_string;
64
65/**
66 * The location where tmpfs is mounted, or "" if it's not mounted.
67char *g_tmpfs_mountpt = NULL;
68 */
69char *g_magicdev_command = NULL;
70
71/**
72 * The default maximum level to log messages at or below.
73 */
74int g_loglevel = DEFAULT_DEBUG_LEVEL;
75
76/* @} - end of globalGroup */
77
78
79extern pid_t g_buffer_pid;
80extern pid_t g_main_pid;
81
82extern t_bkptype g_backup_media_type;
83
84extern bool am_I_in_disaster_recovery_mode(void);
85
86/*-----------------------------------------------------------*/
87
88
89/**
90 * @addtogroup utilityGroup
91 * @{
92 */
93/**
94 * Assertion handler. Prints a friendly message to the user,
95 * offering to ignore all, dump core, break to debugger,
96 * exit, or ignore. Intended to be used with an assert() macro.
97 *
98 * @param file The file in which the assertion triggered.
99 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
100 * @param line The line number of the assert() statement.
101 * @param exp The expression that failed (as a string).
102 */
103void _mondo_assert_fail(const char *file,
104 const char *function, int line, const char *exp)
105{
106 static int ignoring_assertions = 0;
107 bool is_valid = TRUE;
108
109 log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
110 function);
111 if (ignoring_assertions) {
112 log_it("Well, the user doesn't care...");
113 return;
114 }
115 if (!g_text_mode)
116 newtSuspend();
117 printf("ASSERTION FAILED: `%s'\n", exp);
118 printf("\tat %s:%d in %s\n\n", file, line, function);
119 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
120 do {
121 is_valid = TRUE;
122 switch (toupper(getchar())) {
123 case 'A': // ignore (A)ll
124 ignoring_assertions = 1;
125 break;
126 case 'B': // a(B)ort
127 signal(SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
128 raise(SIGABRT);
129 break; /* "can't get here" */
130 case 'D': // (D)ebug, aka asm("int 3")
131#ifdef __IA32__
132 __asm__ __volatile__("int $3"); // break to debugger
133#endif
134 break;
135 case 'E': // (E)xit
136 fatal_error("Failed assertion -- see above for details");
137 break; /* "can't get here" */
138 case 'I': // (I)gnore
139 break;
140 /* These next two work as follows:
141 the `default' catches the user's invalid choice and says so;
142 the '\n' catches the newline on the end and prints the prompt again.
143 */
144 case '\n':
145 printf
146 ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
147 break;
148 default:
149 is_valid = FALSE;
150 printf("Invalid choice.\n");
151 break;
152 }
153 } while (!is_valid);
154
155 if (ignoring_assertions) {
156 log_it("Ignoring ALL assertions from now on.");
157 } else {
158 log_it("Ignoring assertion: %s", exp);
159 }
160
161 getchar(); // skip \n
162
163 if (!g_text_mode)
164 newtResume();
165}
166
167/**
168 * Clean's up users' KDE desktops.
169 * @bug Details about this function are unknown.
170 */
171void clean_up_KDE_desktop_if_necessary(void)
172{
173 char *tmp = NULL;
174
175 mr_asprintf(tmp, "for i in `find /root /home -maxdepth 2 -type d -name Desktop -maxdepth 2`; do file=$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");
176 run_program_and_log_output(tmp, 5);
177 mr_free(tmp);
178}
179
180
181/**
182 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
183 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
184 *
185 * @param home_sz String to store the home directory ("" if it could not be found).
186 * @return 0 for success, nonzero for failure.
187 */
188int find_and_store_mondoarchives_home(char *home_sz)
189{
190 assert(home_sz != NULL);
191 strcpy(home_sz, MONDO_SHARE);
192 return (0);
193}
194
195
196char *get_architecture(void) {
197#ifdef __IA32__
198# ifdef __X86_64__
199 return ("x86_64");
200# else
201 return ("i386");
202# endif
203#endif
204#ifdef __IA64__
205 return ("ia64");
206#endif
207 return ("unknown");
208}
209
210
211char *get_uname_m(void) {
212
213 struct utsname utsn;
214 char *tmp = NULL;
215
216 uname(&utsn);
217 mr_asprintf(tmp, "%s", utsn.machine);
218 return (tmp);
219}
220
221
222
223double get_kernel_version(void)
224{
225 char *p = NULL;
226 char *tmp = NULL;
227 double d;
228#ifdef __FreeBSD__
229 // JOSH - FIXME :)
230 d = 5.2; // :-)
231#else
232 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("uname -r"));
233 p = strchr(tmp, '.');
234 if (p) {
235 p = strchr(++p, '.');
236 if (p) {
237 while (*p) {
238 *p = *(p + 1);
239 p++;
240 }
241 }
242 }
243 d = atof(tmp);
244 mr_free(tmp);
245#endif
246 log_msg(1, "g_kernel_version = %f", d);
247 return (d);
248}
249
250
251/**
252 * Get the current time.
253 * @return number of seconds since the epoch.
254 */
255long get_time()
256{
257 return (long) time((void *) 0);
258}
259
260
261/**
262 * Initialize a RAID volume structure, setting fields to zero. The
263 * actual hard drive is unaffected.
264 *
265 * @param raidrec The RAID volume structure to initialize.
266 * @note This function is system dependent.
267 */
268#ifdef __FreeBSD__
269void initialize_raidrec(struct vinum_volume *raidrec)
270{
271 int i, j;
272 raidrec->volname[0] = '\0';
273 raidrec->plexes = 0;
274 for (i = 0; i < 9; ++i) {
275 raidrec->plex[i].raidlevel = -1;
276 raidrec->plex[i].stripesize = 0;
277 raidrec->plex[i].subdisks = 0;
278 for (j = 0; j < 9; ++j) {
279 strcpy(raidrec->plex[i].sd[j].which_device, "");
280 }
281 }
282}
283#else
284void initialize_raidrec(struct raid_device_record *raidrec)
285{
286 assert(raidrec != NULL);
287 raidrec->raid_device[0] = '\0';
288 raidrec->raid_level = -9;
289 raidrec->persistent_superblock = 1;
290 raidrec->chunk_size = 64;
291 raidrec->parity = -1;
292 raidrec->data_disks.entries = 0;
293 raidrec->spare_disks.entries = 0;
294 raidrec->parity_disks.entries = 0;
295 raidrec->failed_disks.entries = 0;
296 raidrec->additional_vars.entries = 0;
297}
298#endif
299
300
301
302
303/**
304 * Insert modules that Mondo requires.
305 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
306 * @c msdosfs and @c ext2fs for FreeBSD.
307 */
308void insmod_crucial_modules(void)
309{
310#ifdef __FreeBSD__
311 paranoid_system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
312 paranoid_system("kldstat | grep ext2fs || kldload ext2fs 2> /dev/null");
313#else
314 paranoid_system("modprobe -a msdos vfat loop &> /dev/null");
315#endif
316}
317
318/**
319 * Finish configuring the backup information structure. Call this function
320 * to set the parameters that depend on those that can be given on the command
321 * line.
322 *
323 * @param bkpinfo The backup information structure. Fields modified/used:
324 * - Used: @c bkpinfo->backup_data
325 * - Used: @c bkpinfo->backup_media_type
326 * - Used: @c bkpinfo->cdrw_speed
327 * - Used: @c bkpinfo->compression_level
328 * - Used: @c bkpinfo->include_paths
329 * - Used: @c bkpinfo->prefix
330 * - Used: @c bkpinfo->isodir
331 * - Used: @c bkpinfo->manual_cd_tray
332 * - Used: @c bkpinfo->make_cd_use_lilo
333 * - Used: @c bkpinfo->media_device
334 * - Used: @c bkpinfo->netfs_mount
335 * - Used: @c bkpinfo->nonbootable_backup
336 * - Used: @c bkpinfo->scratchdir
337 * - Used: @c bkpinfo->tmpdir
338 * - Used: @c bkpinfo->use_lzo
339 * - Modified: @c bkpinfo->call_before_iso
340 * - Modified: @c bkpinfo->call_make_iso
341 * - Modified: @c bkpinfo->optimal_set_size
342 * - Modified: @c bkpinfo->zip_exe
343 * - Modified: @c bkpinfo->zip_suffix
344 *
345 * @return number of errors, or 0 for success.
346 * @note Also creates directories that are specified in the @c bkpinfo structure but
347 * do not exist.
348 */
349int post_param_configuration()
350{
351 char *extra_cdrom_params = NULL;
352 char *mondo_mkisofs_sz = NULL;
353 char *command = NULL;
354 char *isofs_cmd = NULL;
355 int retval = 0;
356 char *cdr_exe = NULL;
357 char *tmp = NULL;
358 char *call_before_iso_user = NULL;
359 char *iso_dev = NULL;
360 char *iso_mnt = NULL;
361 char *iso_tmp = NULL;
362 char *iso_dir = NULL;
363
364 assert(bkpinfo != NULL);
365
366 bkpinfo->optimal_set_size = (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) * 1024L;
367
368 log_msg(1, "Post-param");
369 if (bkpinfo->backup_media_type == tape) {
370 if (whine_if_not_found("mt") == 1) {
371 fatal_error("Please install the mt command");
372 }
373 log_msg(1, "Tape");
374 if (bkpinfo->media_device == NULL) {
375 return(1);
376 }
377 mr_asprintf(tmp, "mt -f %s status", bkpinfo->media_device);
378 log_msg(1, "tmp = '%s'", tmp);
379 if (run_program_and_log_output(tmp, 3)) {
380 mr_free(tmp);
381 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.");
382 }
383 mr_free(tmp);
384 }
385 if (bkpinfo->backup_media_type == iso)
386 make_hole_for_dir(bkpinfo->isodir);
387
388 run_program_and_log_output("uname -a", 5);
389 run_program_and_log_output("cat /etc/*-release", 5);
390 run_program_and_log_output("cat /etc/*issue*", 5);
391#ifdef __FreeBSD__
392#else
393 run_program_and_log_output("cat /proc/cpuinfo", 5);
394 /*
395 run_program_and_log_output("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc", 5);
396 */
397#endif
398
399 if (bkpinfo->use_lzo) {
400 strcpy(bkpinfo->zip_exe, "lzop");
401 strcpy(bkpinfo->zip_suffix, "lzo");
402 } else if (bkpinfo->use_gzip) {
403 strcpy(bkpinfo->zip_exe, "gzip");
404 strcpy(bkpinfo->zip_suffix, "gz");
405 } else if (bkpinfo->use_lzma) {
406 strcpy(bkpinfo->zip_exe, "lzma");
407 strcpy(bkpinfo->zip_suffix, "lzma");
408 } else if (bkpinfo->compression_level != 0) {
409 strcpy(bkpinfo->zip_exe, "bzip2");
410 strcpy(bkpinfo->zip_suffix, "bz2");
411 } else {
412 bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
413 }
414
415// DVD
416
417 if (bkpinfo->backup_media_type == dvd) {
418 if (find_home_of_exe("growisofs")) {
419 mr_asprintf(cdr_exe, "growisofs");
420 } // unlikely to be used
421 else {
422 fatal_error("Please install growisofs.");
423 }
424 if (bkpinfo->nonbootable_backup) {
425 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
426 } else if
427#ifdef __FreeBSD__
428 (TRUE)
429#else
430 (bkpinfo->make_cd_use_lilo)
431#endif
432#ifdef __IA64__
433 {
434 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
435 }
436#else
437 {
438 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
439 }
440#endif
441 else {
442 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
443 }
444 if (bkpinfo->manual_cd_tray) {
445 fatal_error("Manual CD tray + DVD not supported yet.");
446 // -m isn't supported by growisofs, BTW...
447 } else {
448 sprintf(bkpinfo->call_make_iso, "%s %s -Z %s . 2>> _ERR_", mondo_mkisofs_sz, "", bkpinfo->media_device);
449 }
450 mr_free(mondo_mkisofs_sz);
451 if (getenv ("SUDO_COMMAND")) {
452 mr_asprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
453 if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
454 mr_free(command);
455 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
456 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
457 }
458 mr_free(command);
459 }
460 log_msg(2, "call_make_iso (DVD res) is ... %s", bkpinfo->call_make_iso);
461 } // end of DVD code
462
463// CD-R or CD-RW
464 if (bkpinfo->backup_media_type == cdrw
465 || bkpinfo->backup_media_type == cdr) {
466 if (!bkpinfo->manual_cd_tray) {
467 mr_asprintf(extra_cdrom_params, "-waiti ");
468 }
469 if (bkpinfo->backup_media_type == cdrw) {
470 mr_asprintf(extra_cdrom_params, "blank=fast ");
471 }
472 if (extra_cdrom_params == NULL) {
473 // If not initialized earlier, do it now
474 mr_asprintf(extra_cdrom_params, " ");
475 }
476 if (find_home_of_exe("cdrecord")) {
477 mr_asprintf(cdr_exe, "cdrecord");
478 } else if (find_home_of_exe("dvdrecord")) {
479 mr_asprintf(cdr_exe, "dvdrecord");
480 } else {
481 fatal_error("Please install either cdrecord or dvdrecord.");
482 }
483 if (find_home_of_exe("genisoimage")) {
484 mr_asprintf(isofs_cmd, "%s", MONDO_GENISOIMAGE_CMD);
485 } else {
486 mr_asprintf(isofs_cmd, "%s", MONDO_MKISOFS_CMD);
487 }
488 if (bkpinfo->nonbootable_backup) {
489 mr_asprintf(mondo_mkisofs_sz, "%s%s", isofs_cmd, MONDO_MKISOFS);
490 } else if
491#ifdef __FreeBSD__
492 (TRUE)
493#else
494 (bkpinfo->make_cd_use_lilo)
495#endif
496#ifdef __IA64__
497 {
498 mr_asprintf(mondo_mkisofs_sz, "%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_ELILO);
499 }
500#else
501 {
502 mr_asprintf(mondo_mkisofs_sz, "%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_LILO);
503 }
504#endif
505 else
506 {
507 mr_asprintf(mondo_mkisofs_sz, "%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_SYSLINUX);
508 }
509 mr_free(isofs_cmd);
510
511 if (bkpinfo->manual_cd_tray) {
512 if (bkpinfo->call_before_iso[0] == '\0') {
513 sprintf(bkpinfo->call_before_iso, "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_", mondo_mkisofs_sz, bkpinfo->tmpdir);
514 } else {
515 mr_asprintf(call_before_iso_user, "%s", bkpinfo->call_before_iso);
516 sprintf(bkpinfo->call_before_iso, "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )", mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
517 mr_free(call_before_iso_user);
518 }
519 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
520 sprintf(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);
521 } else {
522 sprintf(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);
523 }
524 mr_free(cdr_exe);
525 mr_free(mondo_mkisofs_sz);
526 mr_free(extra_cdrom_params);
527 } // end of CD code
528
529 if (bkpinfo->backup_media_type == iso) {
530
531/* Break up isodir into iso_mnt and iso_dir
532 * These will be used along with iso-dev at restore time
533 * to locate the ISOs where ever they're mounted
534 */
535
536 log_it("isodir = %s", bkpinfo->isodir);
537 mr_asprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
538 log_it("command = %s", command);
539 mr_asprintf(iso_dev, "%s", call_program_and_get_last_line_of_output(command));
540 log_it("res of it = %s", iso_dev);
541 mr_asprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
542 write_one_liner_data_file(tmp, iso_dev);
543 mr_free(tmp);
544 mr_free(command);
545
546 mr_asprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
547 mr_free(iso_dev);
548
549 log_it("command = %s", command);
550 mr_asprintf(iso_mnt, "%s", call_program_and_get_last_line_of_output(command));
551 log_it("res of it = %s", iso_mnt);
552 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
553 write_one_liner_data_file(tmp, iso_mnt);
554 mr_free(tmp);
555 mr_free(command);
556
557 log_it("iso_mnt: %s, %d", iso_mnt, strlen(iso_mnt));
558 mr_asprintf(iso_tmp, "%s", bkpinfo->isodir);
559 if (strlen(iso_tmp) < strlen(iso_mnt)) {
560 mr_asprintf(iso_dir, "%s", "");
561 } else {
562 // If iso_mnt is only / then iso_dir is the full dir
563 // (the formula bellow doesn't work in this case)
564 if (strcmp(iso_mnt, "/") == 0) {
565 mr_asprintf(iso_dir, "%s", iso_tmp);
566 // else it's a part of iso_tmp
567 } else {
568 mr_asprintf(iso_dir, "%s", iso_tmp + strlen(iso_mnt));
569 }
570 }
571 mr_free(iso_mnt);
572 mr_free(iso_tmp);
573
574 mr_asprintf(tmp, "%s/ISO-DIR", bkpinfo->tmpdir);
575 write_one_liner_data_file(tmp, iso_dir);
576 mr_free(tmp);
577
578 log_it("iso-dir: %s", iso_dir);
579 mr_free(iso_dir);
580
581 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
582 write_one_liner_data_file(tmp, bkpinfo->prefix);
583 mr_free(tmp);
584
585 log_it("iso-prefix: %s", bkpinfo->prefix);
586
587/* End patch */
588 } // end of iso code
589
590 if (bkpinfo->backup_media_type == netfs) {
591 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
592 write_one_liner_data_file(tmp, bkpinfo->prefix);
593 mr_free(tmp);
594
595 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
596 write_one_liner_data_file(tmp, bkpinfo->isodir);
597 mr_free(tmp);
598
599 mr_asprintf(tmp, "%s/ISO-DIR", bkpinfo->tmpdir);
600 write_one_liner_data_file(tmp, bkpinfo->netfs_remote_dir);
601 mr_free(tmp);
602
603 if (bkpinfo->netfs_mount) {
604 mr_asprintf(tmp, "%s/NETFS-SERVER-MOUNT", bkpinfo->tmpdir);
605 write_one_liner_data_file(tmp, bkpinfo->netfs_mount);
606 mr_free(tmp);
607 } else {
608 log_it("netfs_mount is NULL");
609 retval++;
610 }
611 }
612
613 log_it("Finished processing incoming params");
614 if (retval) {
615 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
616 }
617 if (bkpinfo->include_paths == NULL) {
618 mr_asprintf(bkpinfo->include_paths, "/");
619 }
620 g_backup_media_type = bkpinfo->backup_media_type;
621 return (retval);
622}
623
624
625
626/**
627 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
628 * Seeds the random-number generator, loads important modules, checks the sanity
629 * of the user's Linux distribution, and deletes logfile.
630 * @param bkpinfo The backup information structure. Will be initialized.
631 * @return number of errors (0 for success)
632 */
633int pre_param_configuration()
634{
635 int res = 0;
636 char *tmp = NULL;
637
638 make_hole_for_dir(MNT_CDROM);
639 assert(bkpinfo != NULL);
640 srandom((unsigned long) (time(NULL)));
641 insmod_crucial_modules();
642 if (bkpinfo->disaster_recovery) {
643 if (!does_nonMS_partition_exist()) {
644 fatal_error("I am in disaster recovery mode\nPlease don't run mondoarchive.");
645 }
646 }
647
648 mr_asprintf(tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
649 run_program_and_log_output(tmp, FALSE);
650 paranoid_free(tmp);
651 if (find_and_store_mondoarchives_home(g_mondo_home)) {
652 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");
653 res++;
654 return (res);
655 }
656 res += some_basic_system_sanity_checks();
657 if (res) {
658 log_it("Your distribution did not pass Mondo's sanity test.");
659 }
660 g_current_media_number = 1;
661 bkpinfo->postnuke_tarball[0] = '\0';
662 return (res);
663}
664
665/* From busybox under GPLv2 */
666#ifndef HAVE_MKDTEMP
667/* This is now actually part of POSIX.1, but was only added in 2008 */
668char* mkdtemp(char *template)
669{
670 if (mktemp(template) == NULL || mkdir(template, 0700) != 0)
671 return NULL;
672 return template;
673}
674#endif
675
676void setup_tmpdir(char *path) {
677
678 char *tmp = NULL;
679 char *p = NULL;
680
681 if (bkpinfo->tmpdir[0] != '\0') {
682 /* purging a potential old tmpdir */
683 if (chdir("/tmp")) {
684 // FIXME
685 }
686 if (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL) {
687 log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
688 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->tmpdir);
689 } else {
690 log_it("Purging old tmpdir %s/mondo.tmp.*", bkpinfo->tmpdir);
691 mr_asprintf(tmp,"rm -Rf %s/mondo.tmp.*",bkpinfo->tmpdir);
692 }
693 paranoid_system(tmp);
694 mr_free(tmp);
695 }
696
697 /* Always take in account arg first, then env, then default */
698 if (path != NULL) {
699 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", path);
700 } else if (getenv("TMPDIR")) {
701 mr_system("mkdir -p %s",getenv("TMPDIR"));
702 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
703 } else if (getenv("MRTMP")) {
704 mr_system("mkdir -p %s",getenv("MRTMP"));
705 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("MRTMP"));
706 } else {
707 mr_asprintf(tmp, "/tmp/mondo.tmp.XXXXXX");
708 }
709 p = mkdtemp(tmp);
710 if (p == NULL) {
711 printf("Failed to create global tmp directory %s for Mondo.",tmp);
712 mr_free(tmp);
713 finish(-1);
714 }
715 strcpy(bkpinfo->tmpdir,p);
716 mr_free(tmp);
717
718 log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
719
720 mr_asprintf(tmp, "mkdir -p %s/tmpfs", bkpinfo->tmpdir);
721 paranoid_system(tmp);
722 mr_free(tmp);
723}
724
725void setup_scratchdir(char *path) {
726
727 char *tmp = NULL;
728 char *p = NULL;
729
730 if (bkpinfo->scratchdir != NULL) {
731 /* purging a potential old scratchdir */
732 if (chdir("/tmp")) {
733 // FIXME
734 }
735 if (strstr(bkpinfo->scratchdir,"mondo.scratch.") != NULL) {
736 log_it("Purging old scratchdir %s", bkpinfo->scratchdir);
737 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->scratchdir);
738 } else {
739 log_it("Purging old scratchdir %s/mondo.scratch.*", bkpinfo->scratchdir);
740 mr_asprintf(tmp,"rm -Rf %s/mondo.scratch.*",bkpinfo->scratchdir);
741 }
742 paranoid_system(tmp);
743 mr_free(tmp);
744 }
745
746 /* Always take in account arg first, then env, then default */
747 if (path != NULL) {
748 mr_system("mkdir -p %s",path);
749 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", path);
750 } else if (getenv("MRSCRATCH")) {
751 mr_system("mkdir -p %s",getenv("MRSCRATCH"));
752 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", getenv("MRSCRATCH"));
753 } else {
754 mr_asprintf(tmp, "/tmp/mondo.scratch.XXXXXX");
755 }
756 p = mkdtemp(tmp);
757 if (p == NULL) {
758 log_it("Failed to create global scratch directory %s for Mondo.",tmp);
759 finish(-1);
760 }
761 strcpy(bkpinfo->scratchdir,p);
762 log_it("bkpinfo->scratchdir is being set to %s", bkpinfo->scratchdir);
763 paranoid_free(tmp);
764
765 mr_asprintf(tmp, "mkdir -p %s", bkpinfo->scratchdir);
766 paranoid_system(tmp);
767 mr_free(tmp);
768}
769
770
771/**
772 * Reset all fields of the backup information structure to a sensible default.
773 * @param bkpinfo The @c bkpinfo to reset.
774 */
775void reset_bkpinfo()
776{
777 assert(bkpinfo != NULL);
778 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
779
780 bkpinfo->media_device[0] = '\0';
781 bkpinfo->media_size = -1;
782 bkpinfo->boot_loader = '\0';
783 bkpinfo->boot_device = NULL;
784 bkpinfo->zip_exe[0] = '\0';
785 bkpinfo->zip_suffix[0] = '\0';
786 bkpinfo->image_devs[0] = '\0';
787 bkpinfo->compression_level = 3;
788 bkpinfo->use_lzo = FALSE;
789 bkpinfo->use_gzip = FALSE;
790 bkpinfo->use_lzma = FALSE;
791 bkpinfo->verify_data = FALSE;
792 bkpinfo->backup_data = FALSE;
793 bkpinfo->restore_data = FALSE;
794 bkpinfo->use_star = FALSE;
795 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
796
797 /* We need tmpdir as early as possible for further function calls */
798 bkpinfo->tmpdir[0] = '\0'; // Really setup after
799 bkpinfo->scratchdir[0] = '\0'; // Really setup after
800 setup_tmpdir(NULL);
801 setup_scratchdir(NULL);
802
803 bkpinfo->disaster_recovery = am_I_in_disaster_recovery_mode();
804 if (bkpinfo->disaster_recovery) {
805 strcpy(bkpinfo->isodir, "/");
806 } else {
807 strcpy(bkpinfo->isodir, MONDO_CACHE);
808 }
809 strcpy(bkpinfo->prefix, STD_PREFIX);
810 bkpinfo->optimal_set_size = 0L;
811 bkpinfo->backup_media_type = none;
812 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
813 bkpinfo->exclude_paths = NULL;
814 bkpinfo->include_paths = NULL;
815 bkpinfo->exclude_devs = NULL;
816 bkpinfo->restore_path[0] = '\0';
817 bkpinfo->call_before_iso[0] = '\0';
818 bkpinfo->call_make_iso[0] = '\0';
819 bkpinfo->call_burn_iso[0] = '\0';
820 bkpinfo->call_after_iso[0] = '\0';
821 bkpinfo->kernel_path[0] = '\0';
822 bkpinfo->netfs_mount = NULL;
823 bkpinfo->netfs_proto = NULL;
824 bkpinfo->netfs_user = NULL;
825 bkpinfo->netfs_remote_dir = NULL;
826 bkpinfo->postnuke_tarball[0] = '\0';
827 bkpinfo->subdir = NULL;
828 bkpinfo->wipe_media_first = FALSE;
829 bkpinfo->differential = 0;
830 bkpinfo->please_dont_eject = FALSE;
831 bkpinfo->cdrw_speed = 0;
832 bkpinfo->manual_cd_tray = FALSE;
833 bkpinfo->nonbootable_backup = FALSE;
834 bkpinfo->make_cd_use_lilo = FALSE;
835 bkpinfo->use_obdr = FALSE;
836 bkpinfo->restore_mode = interactive;
837 bkpinfo->boot_type = BIOS;
838}
839
840
841/**
842 * Get the remaining free space (in MB) on @p partition.
843 * @param partition The partition to check free space on (either a device or a mountpoint).
844 * @return The free space on @p partition, in MB.
845 */
846long free_space_on_given_partition(char *partition)
847{
848 char *out_sz = NULL;
849 char *command = NULL;
850 long res;
851
852 assert_string_is_neither_NULL_nor_zerolength(partition);
853
854 mr_asprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
855 if (system(command)) {
856 mr_free(command);
857 return (-1);
858 } // partition does not exist
859 mr_free(command);
860
861 mr_asprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4", partition);
862 mr_asprintf(out_sz, "%s", call_program_and_get_last_line_of_output(command));
863 mr_free(command);
864
865 if (strlen(out_sz) == 0) {
866 mr_free(out_sz);
867 return (-1);
868 } // error within df, probably
869 res = atol(out_sz);
870 mr_free(out_sz);
871 return (res);
872}
873
874
875
876/**
877 * Check the user's system for sanity. Checks performed:
878 * - make sure user has enough RAM (32mb required, 64mb recommended)
879 * - make sure user has enough free space in @c /
880 * - check kernel for ramdisk support
881 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
882 * - make sure CD-ROM is unmounted
883 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
884 *
885 * @return number of problems with the user's setup (0 for success)
886 */
887int some_basic_system_sanity_checks()
888{
889
890 /*@ buffers ************ */
891 char *tmp = NULL;
892
893 /*@ int's *************** */
894 int retval = 0;
895
896 mvaddstr_and_log_it(g_currentY, 0, "Checking sanity of your Linux distribution");
897#ifndef __FreeBSD__
898 if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
899 && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
900 log_it("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
901 run_program_and_log_output("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
902 }
903 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
904 if (atol(tmp) < 35000) {
905 retval++;
906 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
907 }
908 if (atol(tmp) < 66000) {
909 log_to_screen("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
910 }
911 mr_free(tmp);
912#endif
913
914 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
915 retval++;
916 log_to_screen
917 ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
918 fatal_error
919 ("Please use \"su -\", not \"su\" to become root. OK? ...and please don't e-mail the mailing list or me about this. Just read the message. :)");
920 }
921#ifndef __FreeBSD__
922 if (run_program_and_log_output
923 ("grep ramdisk /proc/devices", FALSE)) {
924 /* Some SuSE have ramdisk as modules, so insert it first, then test again */
925 run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
926 if (run_program_and_log_output("grep ramdisk /proc/devices", FALSE)) {
927 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?")) {
928 // retval++;
929 log_to_screen("It looks as if your kernel lacks ramdisk and initrd support.");
930 log_to_screen("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
931 }
932 }
933 }
934#endif
935 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
936 if (system("which genisoimage > /dev/null 2> /dev/null")) {
937 retval += whine_if_not_found("mkisofs");
938 }
939 if (system("which wodim > /dev/null 2> /dev/null")) {
940 retval += whine_if_not_found("cdrecord");
941 }
942 retval += whine_if_not_found("bzip2");
943 retval += whine_if_not_found("gzip");
944 retval += whine_if_not_found("awk");
945 retval += whine_if_not_found("md5sum");
946 retval += whine_if_not_found("strings");
947 retval += whine_if_not_found("mindi");
948 retval += whine_if_not_found("buffer");
949
950 // abort if Windows partition but no ms-sys and parted
951 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
952 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -Ew efi", 0)) {
953 log_to_screen("I think you have a EFI/UEFI partition.");
954 } else {
955 log_to_screen("I think you have a Windows 9x partition.");
956 }
957 retval += whine_if_not_found("parted");
958 }
959
960 if (!find_home_of_exe("cmp")) {
961 whine_if_not_found("cmp");
962 }
963 run_program_and_log_output("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
964 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("mount | grep -E \"cdr(om|w)\""));
965 if (strcmp("", tmp)) {
966 if (strstr(tmp, "autofs")) {
967 log_to_screen("Your CD-ROM is mounted via autofs. I therefore cannot tell");
968 log_to_screen("if a CD actually is inserted. If a CD is inserted, please");
969 log_to_screen("eject it. Thank you.");
970 log_it("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
971 } else
972 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
973 retval++;
974 mr_free(tmp);
975 fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
976 }
977 }
978 mr_free(tmp);
979
980 run_program_and_log_output("cat /etc/fstab", 5);
981#ifdef __FreeBSD__
982 run_program_and_log_output("vinum printconfig", 5);
983#else
984 run_program_and_log_output("cat /etc/raidtab", 5);
985#endif
986
987 if (run_program_and_log_output("mindi -V", 1)) {
988 log_to_screen("Could not ascertain mindi's version number.");
989 log_to_screen("You have not installed Mondo and/or Mindi properly.");
990 log_to_screen("Please uninstall and reinstall them both.");
991 fatal_error("Please reinstall Mondo and Mindi.");
992 }
993 mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
994 if (run_program_and_log_output(tmp, 5)) {
995 log_to_screen("%s failed for some reason.", tmp);
996 mr_free(tmp);
997 log_to_screen("Please run that command by hand and examine "MINDI_LOGFILE);
998 log_to_screen("for more information. Perhaps your /etc/fstab file is insane.");
999 log_to_screen("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1000 retval++;
1001 }
1002 mr_free(tmp);
1003
1004 if (!run_program_and_log_output("mr-parted2fdisk -l 2>/dev/null | grep -i raid", 1) && !does_file_exist("/etc/raidtab")) {
1005 log_to_screen("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1006 create_raidtab_from_mdstat(MDSTAT_FILE,"/etc/raidtab");
1007 }
1008
1009 if (retval) {
1010 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1011 } else {
1012 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1013 }
1014 return (retval);
1015}
1016
1017/**
1018 * Retrieve the line containing @p label from the config file.
1019 * @param config_file The file to read from, usually @c /tmp/mondorestore.cfg.
1020 * @param label What to read from the file.
1021 * @param value Where to put it.
1022 * @return 0 for success, 1 for failure.
1023 */
1024int read_cfg_var(char *config_file, char *label, char *value)
1025{
1026 /*@ buffer ****************************************************** */
1027 char *command = NULL;
1028
1029 /*@ end vars *************************************************** */
1030
1031 assert_string_is_neither_NULL_nor_zerolength(config_file);
1032 assert_string_is_neither_NULL_nor_zerolength(label);
1033 if (!does_file_exist(config_file)) {
1034 log_to_screen("(read_cfg_var) Cannot find %s config file", config_file);
1035 value[0] = '\0';
1036 return (1);
1037 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1038 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1039 return (0);
1040 } else {
1041 mr_asprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1042 strcpy(value, call_program_and_get_last_line_of_output(command));
1043 mr_free(command);
1044
1045 log_msg(4, "Configuration item %s is %s", label, value);
1046 if (strlen(value) == 0) {
1047 return (1);
1048 } else {
1049 return (0);
1050 }
1051 }
1052}
1053
1054
1055
1056/**
1057 * Remount @c supermount if it was unmounted earlier.
1058 */
1059void remount_supermounts_if_necessary()
1060{
1061 if (g_remount_cdrom_at_end) {
1062 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1063 }
1064 if (g_remount_floppy_at_end) {
1065 run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1066 }
1067}
1068
1069/**
1070 * Unmount @c supermount if it's mounted.
1071 */
1072void unmount_supermounts_if_necessary()
1073{
1074 if (run_program_and_log_output
1075 ("mount | grep cdrom | grep super", FALSE) == 0) {
1076 g_remount_cdrom_at_end = TRUE;
1077 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1078 }
1079 if (run_program_and_log_output
1080 ("mount | grep floppy | grep super", FALSE) == 0) {
1081 g_remount_floppy_at_end = TRUE;
1082 run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1083 }
1084}
1085
1086/**
1087 * Whether we had to stop autofs (if so, restart it at end).
1088 */
1089bool g_autofs_stopped = FALSE;
1090
1091/**
1092 * Path to the autofs initscript ("" if none exists).
1093 */
1094char g_autofs_exe[MAX_STR_LEN];
1095
1096/**
1097 * Autofs initscript in Xandros Linux distribution.
1098 */
1099#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1100
1101/**
1102 * Autofs initscript in most Linux distributions.
1103 */
1104#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1105
1106/**
1107 * If autofs is mounted, stop it (restart at end).
1108 */
1109void stop_autofs_if_necessary()
1110{
1111 char *tmp = NULL;
1112
1113 g_autofs_exe[0] = '\0';
1114 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1115 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1116 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1117 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1118 }
1119
1120 if (!g_autofs_exe[0]) {
1121 log_msg(3, "No autofs detected.");
1122 } else {
1123 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1124 // FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1125 mr_asprintf(tmp, "%s stop", g_autofs_exe);
1126 if (run_program_and_log_output(tmp, 2)) {
1127 log_it("Failed to stop autofs - I assume it wasn't running");
1128 } else {
1129 g_autofs_stopped = TRUE;
1130 log_it("Stopped autofs OK");
1131 }
1132 mr_free(tmp);
1133 }
1134}
1135
1136/**
1137 * If autofs was stopped earlier, restart it.
1138 */
1139void restart_autofs_if_necessary()
1140{
1141 char *tmp = NULL;
1142
1143 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1144 log_msg(3, "No autofs detected.");
1145 return;
1146 }
1147 mr_asprintf(tmp, "%s start", g_autofs_exe);
1148 if (run_program_and_log_output(tmp, 2)) {
1149 log_it("Failed to start autofs");
1150 } else {
1151 g_autofs_stopped = FALSE;
1152 log_it("Started autofs OK");
1153 }
1154 mr_free(tmp);
1155}
1156
1157
1158/**
1159 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1160 */
1161void mount_boot_if_necessary() {
1162 char *tmp = NULL;
1163 char *command = NULL;
1164
1165 log_msg(1, "Started sub");
1166 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1167 g_boot_mountpt[0] = '\0';
1168 log_msg(4, "Done. Great. Seeting command to something");
1169 mr_asprintf(command, "%s", "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1170 log_msg(4, "Cool. Command = '%s'", command);
1171 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
1172 mr_free(command);
1173
1174 log_msg(4, "tmp = '%s'", tmp);
1175 log_it("/boot is at %s according to /etc/fstab", tmp);
1176 mr_asprintf(command, "mount | grep -Ew '/boot'");
1177 mr_free(tmp);
1178
1179 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
1180 mr_free(command);
1181
1182 if (!strcmp(tmp,"")) {
1183 if ((strstr(tmp, "LABEL=") != NULL) || (strstr(tmp,"UUID=") != NULL)) {
1184 if (!run_program_and_log_output("mount /boot", 5)) {
1185 strcpy(g_boot_mountpt, "/boot");
1186 log_msg(1, "Mounted /boot");
1187 } else {
1188 log_it("...ignored cos it's a label or uuid :-)");
1189 }
1190 } else {
1191 mr_asprintf(command, "mount | grep -E '^%s'", tmp);
1192 log_msg(3, "command = %s", command);
1193 if (run_program_and_log_output(command, 5)) {
1194 strcpy(g_boot_mountpt, tmp);
1195 mr_free(tmp);
1196 log_it("%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1197
1198 mr_asprintf(tmp, "mount %s", g_boot_mountpt);
1199 if (run_program_and_log_output(tmp, 5)) {
1200 g_boot_mountpt[0] = '\0';
1201 log_msg(1, "Plan B");
1202 if (!run_program_and_log_output("mount /boot", 5)) {
1203 strcpy(g_boot_mountpt, "/boot");
1204 log_msg(1, "Plan B worked");
1205 } else {
1206 log_msg(1,
1207 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1208 }
1209 }
1210 }
1211 mr_free(command);
1212 }
1213 }
1214 mr_free(tmp);
1215 log_msg(1, "Ended sub");
1216}
1217
1218
1219/**
1220 * If we mounted /boot earlier, unmount it.
1221 */
1222void unmount_boot_if_necessary()
1223{
1224 char *tmp = NULL;
1225
1226 log_msg(3, "starting");
1227 if (g_boot_mountpt[0]) {
1228 mr_asprintf(tmp, "umount %s", g_boot_mountpt);
1229 if (run_program_and_log_output(tmp, 5)) {
1230 log_it("WARNING - unable to unmount /boot");
1231 }
1232 mr_free(tmp);
1233 }
1234 log_msg(3, "leaving");
1235}
1236
1237
1238
1239/**
1240 * Write a line to a configuration file. Writes a line of the form,
1241 * @c label @c value.
1242 * @param config_file The file to write to. Usually @c mondorestore.cfg.
1243 * @param label What to call this bit of data you're writing.
1244 * @param value The bit of data you're writing.
1245 * @return 0 for success, 1 for failure.
1246 */
1247int write_cfg_var(char *config_file, char *label, char *value)
1248{
1249 /*@ buffers ***************************************************** */
1250 char *command = NULL;
1251 char *tempfile = NULL;
1252
1253
1254 /*@ end vars *************************************************** */
1255 assert_string_is_neither_NULL_nor_zerolength(config_file);
1256 assert_string_is_neither_NULL_nor_zerolength(label);
1257 assert(value != NULL);
1258 if (!does_file_exist(config_file)) {
1259 log_to_screen("(write_cfg_file) Cannot find %s config file", config_file);
1260 return (1);
1261 }
1262 mr_asprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1263 if (does_file_exist(config_file)) {
1264 mr_asprintf(command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1265 paranoid_system(command);
1266 mr_free(command);
1267 }
1268 mr_asprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1269 paranoid_system(command);
1270 mr_free(command);
1271
1272 mr_asprintf(command, "mv -f %s %s", tempfile, config_file);
1273 paranoid_system(command);
1274 mr_free(command);
1275 unlink(tempfile);
1276 mr_free(tempfile);
1277 return (0);
1278}
1279
1280
1281/**
1282 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1283 * information to the logfile.
1284 */
1285void standard_log_debug_msg(int debug_level, const char *szFile, const char *szFunction, int nLine, const char *fmt, ...) {
1286
1287 va_list args;
1288 static int depth = 0;
1289 FILE *fout;
1290
1291 if (depth > 5) {
1292 depth--;
1293 return;
1294 }
1295 depth++;
1296
1297 if (debug_level <= g_loglevel) {
1298 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1299 return;
1300 }
1301
1302 // add tabs to distinguish log levels
1303 if (debug_level > 0) {
1304 fprintf(fout, "DBG%d: ", debug_level);
1305 if (getpid() == g_main_pid)
1306 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1307 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1308 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1309 else
1310 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1311 } else {
1312 fprintf(fout, "INFO: ");
1313 }
1314 va_start(args, fmt);
1315 vfprintf(fout, fmt, args);
1316 va_end(args);
1317
1318 fprintf(fout, "\n");
1319 paranoid_fclose(fout);
1320 }
1321 depth--;
1322}
1323
1324/**
1325 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1326 */
1327void (*log_debug_msg) (int, const char *, const char *, int, const char *, ...) = standard_log_debug_msg;
1328
1329
1330/**
1331 * Allocate or free important globals, depending on @p mal.
1332 * @param mal If TRUE, malloc; if FALSE, free.
1333 */
1334void do_libmondo_global_strings_thing(int mal)
1335{
1336 if (mal) {
1337 malloc_string(g_boot_mountpt);
1338 malloc_string(g_mondo_home);
1339 malloc_string(g_serial_string);
1340 malloc_string(g_magicdev_command);
1341 } else {
1342 paranoid_free(g_boot_mountpt);
1343 paranoid_free(g_mondo_home);
1344 paranoid_free(g_magicdev_command);
1345
1346 mr_free(g_serial_string);
1347 }
1348}
1349
1350/**
1351 * Allocate important globals.
1352 * @see do_libmondo_global_strings_thing
1353 */
1354void malloc_libmondo_global_strings(void)
1355{
1356 do_libmondo_global_strings_thing(1);
1357}
1358
1359/**
1360 * Free important globals.
1361 * @see do_libmondo_global_strings_thing
1362 */
1363void free_libmondo_global_strings(void)
1364{
1365 do_libmondo_global_strings_thing(0);
1366}
1367
1368
1369
1370/**
1371 * Stop @c magicdev if it's running.
1372 * The command used to start it is saved in @p g_magicdev_command.
1373 */
1374void stop_magicdev_if_necessary()
1375{
1376 strcpy(g_magicdev_command, call_program_and_get_last_line_of_output("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1377 if (g_magicdev_command[0]) {
1378 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1379 paranoid_system("killall magicdev");
1380 }
1381}
1382
1383
1384/**
1385 * Restart magicdev if it was stopped.
1386 */
1387void restart_magicdev_if_necessary()
1388{
1389 char *tmp = NULL;
1390
1391 if (g_magicdev_command && g_magicdev_command[0]) {
1392 mr_asprintf(tmp, "%s &", g_magicdev_command);
1393 paranoid_system(tmp);
1394 mr_free(tmp);
1395 }
1396}
1397
1398/* @} - end of utilityGroup */
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