source: MondoRescue/branches/3.2/mondo/src/common/libmondo-tools.c@ 3195

Last change on this file since 3195 was 3195, checked in by Bruno Cornec, 11 years ago
  • Fix tmpdir initialization as mkdtemp modify the existing string so it should not be freed too early.
  • Property svn:keywords set to Id
File size: 39.7 KB
Line 
1/*
2 $Id: libmondo-tools.c 3195 2013-09-30 07:07:23Z 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 "mondostructures.h"
14#include "lib-common-externs.h"
15#include "libmondo-tools.h"
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 3195 2013-09-30 07:07:23Z 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.
45 g_remount_floppy_at_end; ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
46bool g_cd_recovery; ///< TRUE if we're making an "autonuke" backup.
47double g_kernel_version;
48
49/**
50 * The place where /boot is mounted.
51 */
52char *g_boot_mountpt = NULL;
53
54/**
55 * The location of Mondo's home directory.
56 */
57char *g_mondo_home = NULL;
58
59/**
60 * The serial string (used to differentiate between backups) of the current backup.
61 */
62extern char *g_serial_string;
63
64/**
65 * The location where tmpfs is mounted, or "" if it's not mounted.
66char *g_tmpfs_mountpt = NULL;
67 */
68char *g_magicdev_command = NULL;
69
70/**
71 * The default maximum level to log messages at or below.
72 */
73int g_loglevel = DEFAULT_DEBUG_LEVEL;
74
75/* @} - end of globalGroup */
76
77
78extern pid_t g_buffer_pid;
79extern pid_t g_main_pid;
80
81extern t_bkptype g_backup_media_type;
82
83extern bool am_I_in_disaster_recovery_mode(void);
84
85/*-----------------------------------------------------------*/
86
87
88/**
89 * @addtogroup utilityGroup
90 * @{
91 */
92/**
93 * Assertion handler. Prints a friendly message to the user,
94 * offering to ignore all, dump core, break to debugger,
95 * exit, or ignore. Intended to be used with an assert() macro.
96 *
97 * @param file The file in which the assertion triggered.
98 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
99 * @param line The line number of the assert() statement.
100 * @param exp The expression that failed (as a string).
101 */
102void _mondo_assert_fail(const char *file,
103 const char *function, int line, const char *exp)
104{
105 static int ignoring_assertions = 0;
106 bool is_valid = TRUE;
107
108 log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
109 function);
110 if (ignoring_assertions) {
111 log_it("Well, the user doesn't care...");
112 return;
113 }
114 if (!g_text_mode)
115 newtSuspend();
116 printf("ASSERTION FAILED: `%s'\n", exp);
117 printf("\tat %s:%d in %s\n\n", file, line, function);
118 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
119 do {
120 is_valid = TRUE;
121 switch (toupper(getchar())) {
122 case 'A': // ignore (A)ll
123 ignoring_assertions = 1;
124 break;
125 case 'B': // a(B)ort
126 signal(SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
127 raise(SIGABRT);
128 break; /* "can't get here" */
129 case 'D': // (D)ebug, aka asm("int 3")
130#ifdef __IA32__
131 __asm__ __volatile__("int $3"); // break to debugger
132#endif
133 break;
134 case 'E': // (E)xit
135 fatal_error("Failed assertion -- see above for details");
136 break; /* "can't get here" */
137 case 'I': // (I)gnore
138 break;
139 /* These next two work as follows:
140 the `default' catches the user's invalid choice and says so;
141 the '\n' catches the newline on the end and prints the prompt again.
142 */
143 case '\n':
144 printf
145 ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
146 break;
147 default:
148 is_valid = FALSE;
149 printf("Invalid choice.\n");
150 break;
151 }
152 } while (!is_valid);
153
154 if (ignoring_assertions) {
155 log_it("Ignoring ALL assertions from now on.");
156 } else {
157 log_it("Ignoring assertion: %s", exp);
158 }
159
160 getchar(); // skip \n
161
162 if (!g_text_mode)
163 newtResume();
164}
165
166/**
167 * Clean's up users' KDE desktops.
168 * @bug Details about this function are unknown.
169 */
170void clean_up_KDE_desktop_if_necessary(void)
171{
172 char *tmp = NULL;
173
174 mr_asprintf(tmp, "for i in `find /root /home -maxdepth 2 -type d -name Desktop -maxdepth 2`; do file=$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");
175 run_program_and_log_output(tmp, 5);
176 mr_free(tmp);
177}
178
179
180/**
181 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
182 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
183 *
184 * @param home_sz String to store the home directory ("" if it could not be found).
185 * @return 0 for success, nonzero for failure.
186 */
187int find_and_store_mondoarchives_home(char *home_sz)
188{
189 assert(home_sz != NULL);
190 strcpy(home_sz, MONDO_SHARE);
191 return (0);
192}
193
194
195char *get_architecture(void) {
196#ifdef __IA32__
197# ifdef __X86_64__
198 return ("x86_64");
199# else
200 return ("i386");
201# endif
202#endif
203#ifdef __IA64__
204 return ("ia64");
205#endif
206 return ("unknown");
207}
208
209
210char *get_uname_m(void) {
211
212 struct utsname utsn;
213 char *tmp = NULL;
214
215 uname(&utsn);
216 mr_asprintf(tmp, "%s", utsn.machine);
217 return (tmp);
218}
219
220
221
222double get_kernel_version(void)
223{
224 char *p = NULL;
225 char *tmp = NULL;
226 double d;
227#ifdef __FreeBSD__
228 // JOSH - FIXME :)
229 d = 5.2; // :-)
230#else
231 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("uname -r"));
232 p = strchr(tmp, '.');
233 if (p) {
234 p = strchr(++p, '.');
235 if (p) {
236 while (*p) {
237 *p = *(p + 1);
238 p++;
239 }
240 }
241 }
242 d = atof(tmp);
243 mr_free(tmp);
244#endif
245 log_msg(1, "g_kernel_version = %f", d);
246 return (d);
247}
248
249
250/**
251 * Get the current time.
252 * @return number of seconds since the epoch.
253 */
254long get_time()
255{
256 return (long) time((void *) 0);
257}
258
259
260/**
261 * Initialize a RAID volume structure, setting fields to zero. The
262 * actual hard drive is unaffected.
263 *
264 * @param raidrec The RAID volume structure to initialize.
265 * @note This function is system dependent.
266 */
267#ifdef __FreeBSD__
268void initialize_raidrec(struct vinum_volume *raidrec)
269{
270 int i, j;
271 raidrec->volname[0] = '\0';
272 raidrec->plexes = 0;
273 for (i = 0; i < 9; ++i) {
274 raidrec->plex[i].raidlevel = -1;
275 raidrec->plex[i].stripesize = 0;
276 raidrec->plex[i].subdisks = 0;
277 for (j = 0; j < 9; ++j) {
278 strcpy(raidrec->plex[i].sd[j].which_device, "");
279 }
280 }
281}
282#else
283void initialize_raidrec(struct raid_device_record *raidrec)
284{
285 assert(raidrec != NULL);
286 raidrec->raid_device[0] = '\0';
287 raidrec->raid_level = -9;
288 raidrec->persistent_superblock = 1;
289 raidrec->chunk_size = 64;
290 raidrec->parity = -1;
291 raidrec->data_disks.entries = 0;
292 raidrec->spare_disks.entries = 0;
293 raidrec->parity_disks.entries = 0;
294 raidrec->failed_disks.entries = 0;
295 raidrec->additional_vars.entries = 0;
296}
297#endif
298
299
300
301
302/**
303 * Insert modules that Mondo requires.
304 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
305 * @c msdosfs and @c ext2fs for FreeBSD.
306 */
307void insmod_crucial_modules(void)
308{
309#ifdef __FreeBSD__
310 paranoid_system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
311 paranoid_system("kldstat | grep ext2fs || kldload ext2fs 2> /dev/null");
312#else
313 paranoid_system("modprobe -a msdos vfat loop &> /dev/null");
314#endif
315}
316
317/**
318 * Finish configuring the backup information structure. Call this function
319 * to set the parameters that depend on those that can be given on the command
320 * line.
321 *
322 * @param bkpinfo The backup information structure. Fields modified/used:
323 * - Used: @c bkpinfo->backup_data
324 * - Used: @c bkpinfo->backup_media_type
325 * - Used: @c bkpinfo->cdrw_speed
326 * - Used: @c bkpinfo->compression_level
327 * - Used: @c bkpinfo->include_paths
328 * - Used: @c bkpinfo->prefix
329 * - Used: @c bkpinfo->isodir
330 * - Used: @c bkpinfo->manual_cd_tray
331 * - Used: @c bkpinfo->make_cd_use_lilo
332 * - Used: @c bkpinfo->media_device
333 * - Used: @c bkpinfo->netfs_mount
334 * - Used: @c bkpinfo->nonbootable_backup
335 * - Used: @c bkpinfo->scratchdir
336 * - Used: @c bkpinfo->tmpdir
337 * - Used: @c bkpinfo->use_lzo
338 * - Modified: @c bkpinfo->call_before_iso
339 * - Modified: @c bkpinfo->call_make_iso
340 * - Modified: @c bkpinfo->optimal_set_size
341 * - Modified: @c bkpinfo->zip_exe
342 * - Modified: @c bkpinfo->zip_suffix
343 *
344 * @return number of errors, or 0 for success.
345 * @note Also creates directories that are specified in the @c bkpinfo structure but
346 * do not exist.
347 */
348int post_param_configuration()
349{
350 char *extra_cdrom_params = NULL;
351 char *mondo_mkisofs_sz = NULL;
352 char *command = NULL;
353 char *hostname = NULL;
354 char *isofs_cmd = NULL;
355 char *ip_address = NULL;
356 int retval = 0;
357 char *colon;
358 char *cdr_exe = NULL;
359 char *tmp = NULL;
360 char *call_before_iso_user = NULL;
361 char *iso_dev = NULL;
362 char *iso_mnt = NULL;
363 char *iso_tmp = NULL;
364 char *iso_path = NULL;
365
366 assert(bkpinfo != NULL);
367
368 bkpinfo->optimal_set_size =
369 (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
370 1024;
371
372 log_msg(1, "Post-param");
373 if (bkpinfo->backup_media_type == tape) {
374 if (whine_if_not_found("mt") == 1) {
375 fatal_error("Please install the mt command");
376 }
377 log_msg(1, "Tape");
378 if (bkpinfo->media_device == NULL) {
379 return(1);
380 }
381 mr_asprintf(tmp, "mt -f %s status", bkpinfo->media_device);
382 log_msg(1, "tmp = '%s'", tmp);
383 if (run_program_and_log_output(tmp, 3)) {
384 mr_free(tmp);
385 fatal_error
386 ("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.");
387 }
388 mr_free(tmp);
389 }
390 if (bkpinfo->backup_media_type == iso)
391 make_hole_for_dir(bkpinfo->isodir);
392
393 run_program_and_log_output("uname -a", 5);
394 run_program_and_log_output("cat /etc/*-release", 5);
395 run_program_and_log_output("cat /etc/*issue*", 5);
396#ifdef __FreeBSD__
397#else
398 run_program_and_log_output("cat /proc/cpuinfo", 5);
399 run_program_and_log_output
400 ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
401 5);
402#endif
403
404 if (bkpinfo->use_lzo) {
405 strcpy(bkpinfo->zip_exe, "lzop");
406 strcpy(bkpinfo->zip_suffix, "lzo");
407 } else if (bkpinfo->use_gzip) {
408 strcpy(bkpinfo->zip_exe, "gzip");
409 strcpy(bkpinfo->zip_suffix, "gz");
410 } else if (bkpinfo->use_lzma) {
411 strcpy(bkpinfo->zip_exe, "lzma");
412 strcpy(bkpinfo->zip_suffix, "lzma");
413 } else if (bkpinfo->compression_level != 0) {
414 strcpy(bkpinfo->zip_exe, "bzip2");
415 strcpy(bkpinfo->zip_suffix, "bz2");
416 } else {
417 bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
418 }
419
420// DVD
421
422 if (bkpinfo->backup_media_type == dvd) {
423 if (find_home_of_exe("growisofs")) {
424 mr_asprintf(cdr_exe, "growisofs");
425 } // unlikely to be used
426 else {
427 fatal_error("Please install growisofs.");
428 }
429 if (bkpinfo->nonbootable_backup) {
430 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
431 } else if
432#ifdef __FreeBSD__
433 (TRUE)
434#else
435 (bkpinfo->make_cd_use_lilo)
436#endif
437#ifdef __IA64__
438 {
439 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
440 }
441#else
442 {
443 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
444 }
445#endif
446 else {
447 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
448 }
449 if (bkpinfo->manual_cd_tray) {
450 fatal_error("Manual CD tray + DVD not supported yet.");
451 // -m isn't supported by growisofs, BTW...
452 } else {
453 sprintf(bkpinfo->call_make_iso,
454 "%s %s -Z %s . 2>> _ERR_",
455 mondo_mkisofs_sz,
456 "", bkpinfo->media_device);
457 }
458 mr_free(mondo_mkisofs_sz);
459 if (getenv ("SUDO_COMMAND")) {
460 mr_asprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
461 if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
462 mr_free(command);
463 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
464 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
465 }
466 mr_free(command);
467 }
468 log_msg(2, "call_make_iso (DVD res) is ... %s", bkpinfo->call_make_iso);
469 } // end of DVD code
470
471// CD-R or CD-RW
472 if (bkpinfo->backup_media_type == cdrw
473 || bkpinfo->backup_media_type == cdr) {
474 if (!bkpinfo->manual_cd_tray) {
475 mr_asprintf(extra_cdrom_params, "-waiti ");
476 }
477 if (bkpinfo->backup_media_type == cdrw) {
478 mr_asprintf(extra_cdrom_params, "blank=fast ");
479 }
480 if (extra_cdrom_params == NULL) {
481 // If not initialized earlier, do it now
482 mr_asprintf(extra_cdrom_params, " ");
483 }
484 if (find_home_of_exe("cdrecord")) {
485 mr_asprintf(cdr_exe, "cdrecord");
486 } else if (find_home_of_exe("dvdrecord")) {
487 mr_asprintf(cdr_exe, "dvdrecord");
488 } else {
489 fatal_error("Please install either cdrecord or dvdrecord.");
490 }
491 if (find_home_of_exe("genisoimage")) {
492 mr_asprintf(isofs_cmd, "%s", MONDO_GENISOIMAGE_CMD);
493 } else {
494 mr_asprintf(isofs_cmd, "%s", MONDO_MKISOFS_CMD);
495 }
496 if (bkpinfo->nonbootable_backup) {
497 mr_asprintf(mondo_mkisofs_sz, "%s%s", isofs_cmd, MONDO_MKISOFS);
498 } else if
499#ifdef __FreeBSD__
500 (TRUE)
501#else
502 (bkpinfo->make_cd_use_lilo)
503#endif
504#ifdef __IA64__
505 {
506 mr_asprintf(mondo_mkisofs_sz, "%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_ELILO);
507 }
508#else
509 {
510 mr_asprintf(mondo_mkisofs_sz, "%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_LILO);
511 }
512#endif
513 else
514 {
515 mr_asprintf(mondo_mkisofs_sz, "%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_SYSLINUX);
516 }
517 mr_free(isofs_cmd);
518
519 if (bkpinfo->manual_cd_tray) {
520 if (bkpinfo->call_before_iso[0] == '\0') {
521 sprintf(bkpinfo->call_before_iso,
522 "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_",
523 mondo_mkisofs_sz, bkpinfo->tmpdir);
524 } else {
525 mr_asprintf(call_before_iso_user, "%s", bkpinfo->call_before_iso);
526 sprintf(bkpinfo->call_before_iso, "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )", mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
527 mr_free(call_before_iso_user);
528 }
529 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
530 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);
531 } else {
532 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);
533 }
534 mr_free(cdr_exe);
535 mr_free(mondo_mkisofs_sz);
536 mr_free(extra_cdrom_params);
537 } // end of CD code
538
539 if (bkpinfo->backup_media_type == iso) {
540
541/* Patch by Conor Daly <conor.daly@met.ie>
542 * 23-june-2004
543 * Break up isodir into iso_mnt and iso_path
544 * These will be used along with iso-dev at restore time
545 * to locate the ISOs where ever they're mounted
546 */
547
548 log_it("isodir = %s", bkpinfo->isodir);
549 mr_asprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
550 log_it("command = %s", command);
551 mr_asprintf(iso_dev, "%s", call_program_and_get_last_line_of_output(command));
552 log_it("res of it = %s", iso_dev);
553 mr_asprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
554 write_one_liner_data_file(tmp, iso_dev);
555 mr_free(tmp);
556 mr_free(command);
557
558 mr_asprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
559 mr_free(iso_dev);
560
561 log_it("command = %s", command);
562 mr_asprintf(iso_mnt, "%s", call_program_and_get_last_line_of_output(command));
563 log_it("res of it = %s", iso_mnt);
564 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
565 write_one_liner_data_file(tmp, iso_mnt);
566 mr_free(tmp);
567 mr_free(command);
568
569 log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
570 mr_asprintf(iso_tmp, "%s", bkpinfo->isodir);
571 if (strlen(iso_tmp) < strlen(iso_mnt)) {
572 mr_asprintf(iso_path, "%s", "");
573 } else {
574 // If iso_mnt is only / then iso_path is the full dir
575 // (the formula bellow doesn't work in this case)
576 if (strcmp(iso_mnt, "/") == 0) {
577 mr_asprintf(iso_path, "%s", iso_tmp);
578 // else it's a part of iso_tmp
579 } else {
580 mr_asprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
581 }
582 }
583 mr_free(iso_mnt);
584 mr_free(iso_tmp);
585
586 mr_asprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
587 write_one_liner_data_file(tmp, iso_path);
588 mr_free(tmp);
589
590 log_it("isodir: %s", iso_path);
591 mr_free(iso_path);
592
593 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
594 write_one_liner_data_file(tmp, bkpinfo->prefix);
595 mr_free(tmp);
596
597 log_it("iso-prefix: %s", bkpinfo->prefix);
598
599/* End patch */
600 } // end of iso code
601
602 if (bkpinfo->backup_media_type == netfs) {
603 if (bkpinfo->netfs_mount) {
604 mr_asprintf(hostname, "%s", bkpinfo->netfs_mount);
605 } else {
606 log_it("netfs_mount is NULL");
607 retval++;
608 mr_asprintf(hostname, "");
609 }
610 colon = strchr(hostname, ':');
611 if (!colon) {
612 log_it("netfs mount doesn't have a colon in it");
613 retval++;
614 } else {
615 struct hostent *hent;
616
617 *colon = '\0';
618 colon = strchr(hostname, '@');
619 if (colon) {
620 *colon = '\0';
621 colon++;
622 hent = gethostbyname(colon);
623 mr_asprintf(bkpinfo->netfs_user,"%s", hostname);
624 } else {
625 hent = gethostbyname(hostname);
626 }
627 if (!hent) {
628 log_it("Can't resolve Network mount (%s): %s", hostname, hstrerror(h_errno));
629 retval++;
630 } else {
631 mr_asprintf(ip_address, "%s", inet_ntoa((struct in_addr) *((struct in_addr *) hent->h_addr)));
632 mr_strcat(ip_address, strchr(bkpinfo->netfs_mount, ':'));
633 mr_free(bkpinfo->netfs_mount);
634 bkpinfo->netfs_mount = ip_address;
635 }
636 }
637 mr_free(hostname);
638 store_netfs_config();
639 }
640
641 log_it("Finished processing incoming params");
642 if (retval) {
643 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
644 }
645 if (bkpinfo->include_paths == NULL) {
646 mr_asprintf(bkpinfo->include_paths, "/");
647 }
648 g_backup_media_type = bkpinfo->backup_media_type;
649 return (retval);
650}
651
652
653
654/**
655 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
656 * Seeds the random-number generator, loads important modules, checks the sanity
657 * of the user's Linux distribution, and deletes logfile.
658 * @param bkpinfo The backup information structure. Will be initialized.
659 * @return number of errors (0 for success)
660 */
661int pre_param_configuration()
662{
663 int res = 0;
664 char *tmp = NULL;
665
666 make_hole_for_dir(MNT_CDROM);
667 assert(bkpinfo != NULL);
668 srandom((unsigned long) (time(NULL)));
669 insmod_crucial_modules();
670 if (bkpinfo->disaster_recovery) {
671 if (!does_nonMS_partition_exist()) {
672 fatal_error("I am in disaster recovery mode\nPlease don't run mondoarchive.");
673 }
674 }
675
676 mr_asprintf(tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
677 run_program_and_log_output(tmp, FALSE);
678 paranoid_free(tmp);
679 if (find_and_store_mondoarchives_home(g_mondo_home)) {
680 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");
681 res++;
682 return (res);
683 }
684 res += some_basic_system_sanity_checks();
685 if (res) {
686 log_it("Your distribution did not pass Mondo's sanity test.");
687 }
688 g_current_media_number = 1;
689 bkpinfo->postnuke_tarball[0] = '\0';
690 return (res);
691}
692
693/* From busybox under GPLv2 */
694#ifndef HAVE_MKDTEMP
695/* This is now actually part of POSIX.1, but was only added in 2008 */
696char* mkdtemp(char *template)
697{
698 if (mktemp(template) == NULL || mkdir(template, 0700) != 0)
699 return NULL;
700 return template;
701}
702#endif
703
704void setup_tmpdir(char *path) {
705
706 char *tmp = NULL;
707 char *p = NULL;
708
709 if (bkpinfo->tmpdir[0] != '\0') {
710 /* purging a potential old tmpdir */
711 if (chdir("/tmp")) {
712 // FIXME
713 }
714 if (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL) {
715 log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
716 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->tmpdir);
717 } else {
718 log_it("Purging old tmpdir %s/mondo.tmp.*", bkpinfo->tmpdir);
719 mr_asprintf(tmp,"rm -Rf %s/mondo.tmp.*",bkpinfo->tmpdir);
720 }
721 paranoid_system(tmp);
722 mr_free(tmp);
723 }
724
725 /* Always take in account arg first, then env, then default */
726 if (path != NULL) {
727 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", path);
728 } else if (getenv("TMPDIR")) {
729 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
730 } else if (getenv("MRTMP")) {
731 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("MRTMP"));
732 } else {
733 mr_asprintf(tmp, "/tmp/mondo.tmp.XXXXXX");
734 }
735 p = mkdtemp(tmp);
736 if (p == NULL) {
737 printf("Failed to create global tmp directory %s for Mondo.",tmp);
738 mr_free(tmp);
739 finish(-1);
740 }
741 strcpy(bkpinfo->tmpdir,p);
742 mr_free(tmp);
743
744 log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
745
746 mr_asprintf(tmp, "mkdir -p %s/tmpfs", bkpinfo->tmpdir);
747 paranoid_system(tmp);
748 mr_free(tmp);
749}
750
751void setup_scratchdir(char *path) {
752
753 char *tmp = NULL;
754 char *p = NULL;
755
756 if (bkpinfo->scratchdir != NULL) {
757 /* purging a potential old scratchdir */
758 if (chdir("/tmp")) {
759 // FIXME
760 }
761 if (strstr(bkpinfo->scratchdir,"mondo.scratch.") != NULL) {
762 log_it("Purging old scratchdir %s", bkpinfo->scratchdir);
763 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->scratchdir);
764 } else {
765 log_it("Purging old scratchdir %s/mondo.scratch.*", bkpinfo->scratchdir);
766 mr_asprintf(tmp,"rm -Rf %s/mondo.scratch.*",bkpinfo->scratchdir);
767 }
768 paranoid_system(tmp);
769 mr_free(tmp);
770 }
771
772 /* Always take in account arg first, then env, then default */
773 if (path != NULL) {
774 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", path);
775 } else if (getenv("MRSCRATCH")) {
776 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", getenv("MRSCRATCH"));
777 } else {
778 mr_asprintf(tmp, "/tmp/mondo.scratch.XXXXXX");
779 }
780 p = mkdtemp(tmp);
781 if (p == NULL) {
782 log_it("Failed to create global scratch directory %s for Mondo.",tmp);
783 finish(-1);
784 }
785 strcpy(bkpinfo->scratchdir,p);
786 log_it("bkpinfo->scratchdir is being set to %s", bkpinfo->scratchdir);
787 paranoid_free(tmp);
788
789 mr_asprintf(tmp, "mkdir -p %s", bkpinfo->scratchdir);
790 paranoid_system(tmp);
791 mr_free(tmp);
792}
793
794
795/**
796 * Reset all fields of the backup information structure to a sensible default.
797 * @param bkpinfo The @c bkpinfo to reset.
798 */
799void reset_bkpinfo()
800{
801 assert(bkpinfo != NULL);
802 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
803
804 bkpinfo->media_device[0] = '\0';
805 bkpinfo->media_size = -1;
806 bkpinfo->boot_loader = '\0';
807 bkpinfo->boot_device[0] = '\0';
808 bkpinfo->zip_exe[0] = '\0';
809 bkpinfo->zip_suffix[0] = '\0';
810 bkpinfo->image_devs[0] = '\0';
811 bkpinfo->compression_level = 3;
812 bkpinfo->use_lzo = FALSE;
813 bkpinfo->use_gzip = FALSE;
814 bkpinfo->use_lzma = FALSE;
815 bkpinfo->verify_data = FALSE;
816 bkpinfo->backup_data = FALSE;
817 bkpinfo->restore_data = FALSE;
818 bkpinfo->use_star = FALSE;
819 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
820
821 /* We need tmpdir as early as possible for further function calls */
822 bkpinfo->tmpdir[0] = '\0'; // Really setup after
823 bkpinfo->scratchdir[0] = '\0'; // Really setup after
824 setup_tmpdir(NULL);
825 setup_scratchdir(NULL);
826
827 bkpinfo->disaster_recovery = am_I_in_disaster_recovery_mode();
828 if (bkpinfo->disaster_recovery) {
829 strcpy(bkpinfo->isodir, "/");
830 } else {
831 strcpy(bkpinfo->isodir, MONDO_CACHE);
832 }
833 strcpy(bkpinfo->prefix, STD_PREFIX);
834 bkpinfo->optimal_set_size = 0;
835 bkpinfo->backup_media_type = none;
836 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
837 bkpinfo->exclude_paths = NULL;
838 bkpinfo->include_paths = NULL;
839 bkpinfo->exclude_devs = NULL;
840 bkpinfo->restore_path[0] = '\0';
841 bkpinfo->call_before_iso[0] = '\0';
842 bkpinfo->call_make_iso[0] = '\0';
843 bkpinfo->call_burn_iso[0] = '\0';
844 bkpinfo->call_after_iso[0] = '\0';
845 bkpinfo->kernel_path[0] = '\0';
846 bkpinfo->netfs_mount = NULL;
847 bkpinfo->netfs_proto = NULL;
848 bkpinfo->netfs_user = NULL;
849 bkpinfo->netfs_remote_dir = NULL;
850 bkpinfo->postnuke_tarball[0] = '\0';
851 bkpinfo->subdir = NULL;
852 bkpinfo->wipe_media_first = FALSE;
853 bkpinfo->differential = 0;
854 bkpinfo->please_dont_eject = FALSE;
855 bkpinfo->cdrw_speed = 0;
856 bkpinfo->manual_cd_tray = FALSE;
857 bkpinfo->nonbootable_backup = FALSE;
858 bkpinfo->make_cd_use_lilo = FALSE;
859 bkpinfo->use_obdr = FALSE;
860 bkpinfo->restore_mode = interactive;
861}
862
863
864/**
865 * Get the remaining free space (in MB) on @p partition.
866 * @param partition The partition to check free space on (either a device or a mountpoint).
867 * @return The free space on @p partition, in MB.
868 */
869long free_space_on_given_partition(char *partition)
870{
871 char *out_sz = NULL;
872 char *command = NULL;
873 long res;
874
875 assert_string_is_neither_NULL_nor_zerolength(partition);
876
877 mr_asprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
878 if (system(command)) {
879 mr_free(command);
880 return (-1);
881 } // partition does not exist
882 mr_free(command);
883
884 mr_asprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4", partition);
885 mr_asprintf(out_sz, "%s", call_program_and_get_last_line_of_output(command));
886 mr_free(command);
887
888 if (strlen(out_sz) == 0) {
889 mr_free(out_sz);
890 return (-1);
891 } // error within df, probably
892 res = atol(out_sz);
893 mr_free(out_sz);
894 return (res);
895}
896
897
898
899/**
900 * Check the user's system for sanity. Checks performed:
901 * - make sure user has enough RAM (32mb required, 64mb recommended)
902 * - make sure user has enough free space in @c /
903 * - check kernel for ramdisk support
904 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
905 * - make sure CD-ROM is unmounted
906 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
907 *
908 * @return number of problems with the user's setup (0 for success)
909 */
910int some_basic_system_sanity_checks()
911{
912
913 /*@ buffers ************ */
914 char *tmp = NULL;
915
916 /*@ int's *************** */
917 int retval = 0;
918
919 mvaddstr_and_log_it(g_currentY, 0, "Checking sanity of your Linux distribution");
920#ifndef __FreeBSD__
921 if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
922 && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
923 log_it("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
924 run_program_and_log_output("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
925 }
926 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
927 if (atol(tmp) < 35000) {
928 retval++;
929 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
930 }
931 if (atol(tmp) < 66000) {
932 log_to_screen("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
933 }
934 mr_free(tmp);
935#endif
936
937 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
938 retval++;
939 log_to_screen
940 ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
941 fatal_error
942 ("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. :)");
943 }
944#ifndef __FreeBSD__
945 if (run_program_and_log_output
946 ("grep ramdisk /proc/devices", FALSE)) {
947 /* Some SuSE have ramdisk as modules, so insert it first, then test again */
948 run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
949 if (run_program_and_log_output("grep ramdisk /proc/devices", FALSE)) {
950 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 a failsafe kernel. Are you?")) {
951 // retval++;
952 log_to_screen("It looks as if your kernel lacks ramdisk and initrd support.");
953 log_to_screen("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
954 }
955 }
956 }
957#endif
958 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
959 if (system("which genisoimage > /dev/null 2> /dev/null")) {
960 retval += whine_if_not_found("mkisofs");
961 }
962 if (system("which wodim > /dev/null 2> /dev/null")) {
963 retval += whine_if_not_found("cdrecord");
964 }
965 retval += whine_if_not_found("bzip2");
966 retval += whine_if_not_found("gzip");
967 retval += whine_if_not_found("awk");
968 retval += whine_if_not_found("md5sum");
969 retval += whine_if_not_found("strings");
970 retval += whine_if_not_found("mindi");
971 retval += whine_if_not_found("buffer");
972
973 // abort if Windows partition but no ms-sys and parted
974 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
975 log_to_screen("I think you have a Windows 9x partition.");
976 retval += whine_if_not_found("parted");
977 }
978
979 if (!find_home_of_exe("cmp")) {
980 whine_if_not_found("cmp");
981 }
982 run_program_and_log_output("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
983 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("mount | grep -E \"cdr(om|w)\""));
984 if (strcmp("", tmp)) {
985 if (strstr(tmp, "autofs")) {
986 log_to_screen("Your CD-ROM is mounted via autofs. I therefore cannot tell");
987 log_to_screen("if a CD actually is inserted. If a CD is inserted, please");
988 log_to_screen("eject it. Thank you.");
989 log_it("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
990 } else
991 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
992 retval++;
993 mr_free(tmp);
994 fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
995 }
996 }
997 mr_free(tmp);
998
999 run_program_and_log_output("cat /etc/fstab", 5);
1000#ifdef __FreeBSD__
1001 run_program_and_log_output("vinum printconfig", 5);
1002#else
1003 run_program_and_log_output("cat /etc/raidtab", 5);
1004#endif
1005
1006 if (run_program_and_log_output("mindi -V", 1)) {
1007 log_to_screen("Could not ascertain mindi's version number.");
1008 log_to_screen("You have not installed Mondo and/or Mindi properly.");
1009 log_to_screen("Please uninstall and reinstall them both.");
1010 fatal_error("Please reinstall Mondo and Mindi.");
1011 }
1012 mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1013 if (run_program_and_log_output(tmp, 5)) {
1014 log_to_screen("%s failed for some reason.", tmp);
1015 mr_free(tmp);
1016 log_to_screen("Please run that command by hand and examine /var/log/mindi.log");
1017 log_to_screen("for more information. Perhaps your /etc/fstab file is insane.");
1018 log_to_screen("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1019 retval++;
1020 }
1021 mr_free(tmp);
1022
1023 if (!run_program_and_log_output("parted2fdisk -l 2>/dev/null | grep -i raid", 1) && !does_file_exist("/etc/raidtab")) {
1024 log_to_screen("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1025 create_raidtab_from_mdstat(MDSTAT_FILE,"/etc/raidtab");
1026 }
1027
1028 if (retval) {
1029 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1030 } else {
1031 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1032 }
1033 return (retval);
1034}
1035
1036/**
1037 * Retrieve the line containing @p label from the config file.
1038 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1039 * @param label What to read from the file.
1040 * @param value Where to put it.
1041 * @return 0 for success, 1 for failure.
1042 */
1043int read_cfg_var(char *config_file, char *label, char *value)
1044{
1045 /*@ buffer ****************************************************** */
1046 char *command = NULL;
1047
1048 /*@ end vars *************************************************** */
1049
1050 assert_string_is_neither_NULL_nor_zerolength(config_file);
1051 assert_string_is_neither_NULL_nor_zerolength(label);
1052 if (!does_file_exist(config_file)) {
1053 log_to_screen("(read_cfg_var) Cannot find %s config file", config_file);
1054 value[0] = '\0';
1055 return (1);
1056 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1057 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1058 return (0);
1059 } else {
1060 mr_asprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1061 label, config_file);
1062 strcpy(value, call_program_and_get_last_line_of_output(command));
1063 mr_free(command);
1064
1065 log_msg(4, "Configuration item %s is %s", label, value);
1066 if (strlen(value) == 0) {
1067 return (1);
1068 } else {
1069 return (0);
1070 }
1071 }
1072}
1073
1074
1075
1076/**
1077 * Remount @c supermount if it was unmounted earlier.
1078 */
1079void remount_supermounts_if_necessary()
1080{
1081 if (g_remount_cdrom_at_end) {
1082 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1083 }
1084 if (g_remount_floppy_at_end) {
1085 run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1086 }
1087}
1088
1089/**
1090 * Unmount @c supermount if it's mounted.
1091 */
1092void unmount_supermounts_if_necessary()
1093{
1094 if (run_program_and_log_output
1095 ("mount | grep cdrom | grep super", FALSE) == 0) {
1096 g_remount_cdrom_at_end = TRUE;
1097 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1098 }
1099 if (run_program_and_log_output
1100 ("mount | grep floppy | grep super", FALSE) == 0) {
1101 g_remount_floppy_at_end = TRUE;
1102 run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1103 }
1104}
1105
1106/**
1107 * Whether we had to stop autofs (if so, restart it at end).
1108 */
1109bool g_autofs_stopped = FALSE;
1110
1111/**
1112 * Path to the autofs initscript ("" if none exists).
1113 */
1114char g_autofs_exe[MAX_STR_LEN];
1115
1116/**
1117 * Autofs initscript in Xandros Linux distribution.
1118 */
1119#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1120
1121/**
1122 * Autofs initscript in most Linux distributions.
1123 */
1124#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1125
1126/**
1127 * If autofs is mounted, stop it (restart at end).
1128 */
1129void stop_autofs_if_necessary()
1130{
1131 char *tmp = NULL;
1132
1133 g_autofs_exe[0] = '\0';
1134 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1135 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1136 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1137 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1138 }
1139
1140 if (!g_autofs_exe[0]) {
1141 log_msg(3, "No autofs detected.");
1142 } else {
1143 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1144 // FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1145 mr_asprintf(tmp, "%s stop", g_autofs_exe);
1146 if (run_program_and_log_output(tmp, 2)) {
1147 log_it("Failed to stop autofs - I assume it wasn't running");
1148 } else {
1149 g_autofs_stopped = TRUE;
1150 log_it("Stopped autofs OK");
1151 }
1152 mr_free(tmp);
1153 }
1154}
1155
1156/**
1157 * If autofs was stopped earlier, restart it.
1158 */
1159void restart_autofs_if_necessary()
1160{
1161 char *tmp = NULL;
1162
1163 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1164 log_msg(3, "No autofs detected.");
1165 return;
1166 }
1167 mr_asprintf(tmp, "%s start", g_autofs_exe);
1168 if (run_program_and_log_output(tmp, 2)) {
1169 log_it("Failed to start autofs");
1170 } else {
1171 g_autofs_stopped = FALSE;
1172 log_it("Started autofs OK");
1173 }
1174 mr_free(tmp);
1175}
1176
1177
1178/**
1179 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1180 */
1181void mount_boot_if_necessary() {
1182 char *tmp = NULL;
1183 char *command = NULL;
1184
1185 log_msg(1, "Started sub");
1186 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1187 g_boot_mountpt[0] = '\0';
1188 log_msg(4, "Done. Great. Seeting command to something");
1189 mr_asprintf(command, "%s", "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1190 log_msg(4, "Cool. Command = '%s'", command);
1191 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
1192 mr_free(command);
1193
1194 log_msg(4, "tmp = '%s'", tmp);
1195 log_it("/boot is at %s according to /etc/fstab", tmp);
1196 mr_asprintf(command, "mount | grep -Ew '/boot'");
1197 mr_free(tmp);
1198
1199 mr_asprintf(tmp, call_program_and_get_last_line_of_output(command));
1200 mr_free(command);
1201
1202 if (!strcmp(tmp,"")) {
1203 if ((strstr(tmp, "LABEL=") != NULL) || (strstr(tmp,"UUID=") != NULL)) {
1204 if (!run_program_and_log_output("mount /boot", 5)) {
1205 strcpy(g_boot_mountpt, "/boot");
1206 log_msg(1, "Mounted /boot");
1207 } else {
1208 log_it("...ignored cos it's a label or uuid :-)");
1209 }
1210 } else {
1211 mr_asprintf(command, "mount | grep -E '^%s'", tmp);
1212 log_msg(3, "command = %s", command);
1213 if (run_program_and_log_output(command, 5)) {
1214 strcpy(g_boot_mountpt, tmp);
1215 mr_free(tmp);
1216 log_it("%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1217
1218 mr_asprintf(tmp, "mount %s", g_boot_mountpt);
1219 if (run_program_and_log_output(tmp, 5)) {
1220 g_boot_mountpt[0] = '\0';
1221 log_msg(1, "Plan B");
1222 if (!run_program_and_log_output("mount /boot", 5)) {
1223 strcpy(g_boot_mountpt, "/boot");
1224 log_msg(1, "Plan B worked");
1225 } else {
1226 log_msg(1,
1227 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1228 }
1229 }
1230 }
1231 mr_free(command);
1232 }
1233 }
1234 mr_free(tmp);
1235 log_msg(1, "Ended sub");
1236}
1237
1238
1239/**
1240 * If we mounted /boot earlier, unmount it.
1241 */
1242void unmount_boot_if_necessary()
1243{
1244 char *tmp = NULL;
1245
1246 log_msg(3, "starting");
1247 if (g_boot_mountpt[0]) {
1248 mr_asprintf(tmp, "umount %s", g_boot_mountpt);
1249 if (run_program_and_log_output(tmp, 5)) {
1250 log_it("WARNING - unable to unmount /boot");
1251 }
1252 mr_free(tmp);
1253 }
1254 log_msg(3, "leaving");
1255}
1256
1257
1258
1259/**
1260 * Write a line to a configuration file. Writes a line of the form,
1261 * @c label @c value.
1262 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1263 * @param label What to call this bit of data you're writing.
1264 * @param value The bit of data you're writing.
1265 * @return 0 for success, 1 for failure.
1266 */
1267int write_cfg_var(char *config_file, char *label, char *value)
1268{
1269 /*@ buffers ***************************************************** */
1270 char *command = NULL;
1271 char *tempfile = NULL;
1272
1273
1274 /*@ end vars *************************************************** */
1275 assert_string_is_neither_NULL_nor_zerolength(config_file);
1276 assert_string_is_neither_NULL_nor_zerolength(label);
1277 assert(value != NULL);
1278 if (!does_file_exist(config_file)) {
1279 log_to_screen("(write_cfg_file) Cannot find %s config file", config_file);
1280 return (1);
1281 }
1282 mr_asprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1283 if (does_file_exist(config_file)) {
1284 mr_asprintf(command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1285 paranoid_system(command);
1286 mr_free(command);
1287 }
1288 mr_asprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1289 paranoid_system(command);
1290 mr_free(command);
1291
1292 mr_asprintf(command, "mv -f %s %s", tempfile, config_file);
1293 paranoid_system(command);
1294 mr_free(command);
1295 unlink(tempfile);
1296 mr_free(tempfile);
1297 return (0);
1298}
1299
1300
1301/**
1302 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1303 * information to the logfile.
1304 */
1305void standard_log_debug_msg(int debug_level, const char *szFile, const char *szFunction, int nLine, const char *fmt, ...) {
1306
1307 va_list args;
1308 static int depth = 0;
1309 FILE *fout;
1310
1311 if (depth > 5) {
1312 depth--;
1313 return;
1314 }
1315 depth++;
1316
1317 if (debug_level <= g_loglevel) {
1318 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1319 return;
1320 }
1321
1322 // add tabs to distinguish log levels
1323 if (debug_level > 0) {
1324 fprintf(fout, "DBG%d: ", debug_level);
1325 if (getpid() == g_main_pid)
1326 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1327 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1328 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1329 else
1330 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1331 } else {
1332 fprintf(fout, "INFO: ");
1333 }
1334 va_start(args, fmt);
1335 vfprintf(fout, fmt, args);
1336 va_end(args);
1337
1338 fprintf(fout, "\n");
1339 paranoid_fclose(fout);
1340 }
1341 depth--;
1342}
1343
1344/**
1345 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1346 */
1347void (*log_debug_msg) (int, const char *, const char *, int, const char *, ...) = standard_log_debug_msg;
1348
1349
1350/**
1351 * Allocate or free important globals, depending on @p mal.
1352 * @param mal If TRUE, malloc; if FALSE, free.
1353 */
1354void do_libmondo_global_strings_thing(int mal)
1355{
1356 if (mal) {
1357 malloc_string(g_boot_mountpt);
1358 malloc_string(g_mondo_home);
1359 malloc_string(g_serial_string);
1360 malloc_string(g_magicdev_command);
1361 } else {
1362 paranoid_free(g_boot_mountpt);
1363 paranoid_free(g_mondo_home);
1364 paranoid_free(g_magicdev_command);
1365
1366 mr_free(g_serial_string);
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 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"));
1397 if (g_magicdev_command[0]) {
1398 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1399 paranoid_system("killall magicdev");
1400 }
1401}
1402
1403
1404/**
1405 * Restart magicdev if it was stopped.
1406 */
1407void restart_magicdev_if_necessary()
1408{
1409 char *tmp = NULL;
1410
1411 if (g_magicdev_command && g_magicdev_command[0]) {
1412 mr_asprintf(tmp, "%s &", g_magicdev_command);
1413 paranoid_system(tmp);
1414 mr_free(tmp);
1415 }
1416}
1417
1418/* @} - end of utilityGroup */
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