source: MondoRescue/branches/2.05/mondo/mondo/common/libmondo-tools.c@ 163

Last change on this file since 163 was 163, checked in by andree, 18 years ago

Make it so that the -B option script does run even if specified in
conjunction with the -m option (manual CD tray).

Based on a patch by Efraim Feinstein - thank you!

See also Debian bug #278000.
  • Property svn:keywords set to Id
File size: 45.0 KB
Line 
1/* libmondo-tools.c misc tools
2 $Id: libmondo-tools.c 163 2005-12-08 11:04:02Z andree $
3.
4
5
606/28
7- abort if RAID partitions found but /etc/raidtab not found
8
906/25
10- don't insist on ms-sys; recommend it
11- don't fatal_error if can't open log file
12
1306/14
14- call mindi -V before calling mindi --makemountlist
15
1604/09
17- lots of malloc'd char*'s instead of char[]'s in post_param_config'n
18
1904/02
20- better sanity-checking, re: /etc/modules.conf
21
2202/15
23- abort if Windows dir but no ms-sys or parted
24
2502/08
26- missing ramdisk/initrd support is nonfatal now (but stupid)
27
2801/16
29- added g_kernel_version and get_kernel_version()
30
3101/08/2004
32- fixed /boot mounter thingy
33
3411/14/2003
35- if <50MB free in /root, softlink /root/images/mindi to
36 /home/root/images/mindi as a workaround
37
3810/23
39- streaming backups now generate 4MB sets; CDs, 8MB sets
40
4110/21
42- better at finding your /boot in order to mount it, if nec.
43- link /etc/modules.conf to /etc/conf.modules if former
44 is missing but latter is not
45- changed "/mnt/cdrom" to MNT_CDROM
46- changed "/mnt/floppy" to MNT_FLOPPY
47
4810/13
49- added stop_magicdev_if_necessary()
50- added restart_magicdev_if_necessary()
51
5210/02
53- don't eject if bkpinfo->please_dont_eject is TRUE
54
5509/28
56- fixed segfault in mount_..._necessary
57
5809/26
59- ask for cmp (or create workaround if possible)
60
6109/25
62- add DVD support
63
6409/24
65- don't overwrite existing media-dev value in bkpinfo IF it's
66 a tape device AND it's already populated by /dev/{something}
67 ...This helps w/ weird tape drives
68
6909/23
70- malloc/free global strings in new subroutines - malloc_libmondo_global_strings()
71 and free_libmondo_global_strings() - which are in libmondo-tools.c
72
7309/18
74- added stop_autofs_if_necessary() and restart_autofs_if_necessary()
75
7609/13
77- added log_debug_msg()
78- turned log_it() into a macro
79
8009/10
81- reduced PPCFG_RAMDISK to 150m (was 200m)
82- max set size is now 8MB (was 6)
83- added 'buffer' to requisite tools
84
8508/29
86- typical set size is now 5MB
87
8807/22
89- increased PPCFG* to 200m
90
9105/07
92- changed grep -m1 to grep | head -n1 for Debian users
93- pre_param_...() also mkdir -p /mnt/cdrom, just in case
94
9505/05
96- cleaner logging of call to dd if=<tape> of=/dev/null
97- added Joshua Oreman's FreeBSD patches
98
9905/04
100- added Herman Kuster's multi-level bkp patch
101
10205/02
103- log_it() --- "Message repeated N times" (if it was)
104
10504/24
106- added lots of assert()'s and log_OS_error()'s
107- reset_bkpinfop() --- reset all media_size[] array
108- increased tmpfs ramdisk to size=100m
109
11004/22
111- post_param_configuration() --- store iso-dev and isodir
112
11304/05
114- re-enable tmpfs ramdisk/mountpt _but_ make sure size=80m
115- in post_param_configuration(), use cdrecord in preference
116 to dvdrecord now
117
11803/27
119- disabled tmpfs ramdisk/mountpt
120
12101/02/2003
122- bkpinfo->makefilelist = TRUE
123
12412/10/2002
125- added g_loglevel
126- fixed minor bug in clean_up_KDE_desktop_if_necessary()
127- log versions of newt, slang, ncurses
128- isodir defaults to / if disaster recovery
129
13011/28
131- unmount all CD devices at start
132- added clean_up_KDE_desktop_if_necessary()
133
13411/20
135- don't use lilo.conf.anaconda; abort instead
136- mount/unmount /boot partition for Gentoo 1.2 users
137
13811/13
139- call mindi --makemountlist as part of testing sanity of distro
140
14111/08
142- added a couple of chmod 700's (one for scratchdir, one for tmpdir)
143 to post_param_configuration()
144
14510/01 - 10/31
146- added checking of / and /root's free space to some_basic_sanity_checks()
147- moved some subroutines here from common/libmondo-archive
148
14909/01 - 09/30
150- don't write log_it()'s string to stdout, even if text mode
151- tell user the kernel is bad if it has no ramdisk support but allow
152 it if they want to use the failsafe kernel for booting
153- run_program_and_log_output() now takes boolean operator to specify
154 whether it will log its activities in the event of _success_
155- if mkfs.vfat not found but mkfs.msdos found then create a softlink
156 from the former to the latter
157
15808/01 - 08/31
159- if /etc/lilo.conf not found not /etc/lilo.conf.anaconda found
160 then create a softlink from the former to the latter, to work
161 around RH7.3's b0rken LILO support
162- handle unknown media size
163
16407/27
165- created
166*/
167
168
169/**
170 * @file
171 * Miscellaneous tools that didn't really fit anywhere else.
172 */
173
174#include "my-stuff.h"
175#include "mondostructures.h"
176#include "lib-common-externs.h"
177#include "libmondo-tools.h"
178#include "libmondo-gui-EXT.h"
179#include "libmondo-files-EXT.h"
180#include "libmondo-fork-EXT.h"
181#include "libmondo-raid-EXT.h"
182#include <sys/socket.h>
183#include <netdb.h>
184#include <netinet/in.h>
185#include <arpa/inet.h>
186
187/*@unused@*/
188//static char cvsid[] = "$Id: libmondo-tools.c 163 2005-12-08 11:04:02Z andree $";
189
190extern int g_tape_buffer_size_MB;
191extern char *g_erase_tmpdir_and_scratchdir;
192extern char *g_serial_string;
193extern bool g_text_mode;
194extern int g_currentY;
195extern int g_current_media_number;
196
197/**
198 * @addtogroup globalGroup
199 * @{
200 */
201bool g_remount_cdrom_at_end, ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
202 g_remount_floppy_at_end; ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
203bool g_cd_recovery; ///< TRUE if we're making an "autonuke" backup.
204double g_kernel_version;
205
206/**
207 * The place where /boot is mounted.
208 */
209char *g_boot_mountpt = NULL;
210
211/**
212 * The location of Mondo's home directory.
213 */
214char *g_mondo_home = NULL;
215
216/**
217 * The serial string (used to differentiate between backups) of the current backup.
218 */
219char *g_serial_string = NULL;
220
221/**
222 * The location where tmpfs is mounted, or "" if it's not mounted.
223 */
224char *g_tmpfs_mountpt = NULL;
225char *g_magicdev_command = NULL;
226
227/**
228 * The default maximum level to log messages at or below.
229 */
230int g_loglevel = DEFAULT_DEBUG_LEVEL;
231
232/* @} - end of globalGroup */
233
234
235extern pid_t g_buffer_pid;
236extern pid_t g_main_pid;
237
238extern t_bkptype g_backup_media_type;
239
240extern bool am_I_in_disaster_recovery_mode(void);
241
242
243/**
244 * @addtogroup utilityGroup
245 * @{
246 */
247/**
248 * Assertion handler. Prints a friendly message to the user,
249 * offering to ignore all, dump core, break to debugger,
250 * exit, or ignore. Intended to be used with an assert() macro.
251 *
252 * @param file The file in which the assertion triggered.
253 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
254 * @param line The line number of the assert() statement.
255 * @param exp The expression that failed (as a string).
256 */
257void _mondo_assert_fail(const char *file,
258 const char *function, int line, const char *exp)
259{
260 static int ignoring_assertions = 0;
261 bool is_valid = TRUE;
262
263 log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
264 function);
265 if (ignoring_assertions) {
266 log_it("Well, the user doesn't care...");
267 return;
268 }
269#ifndef _XWIN
270 if (!g_text_mode)
271 newtSuspend();
272#endif
273 printf("ASSERTION FAILED: `%s'\n", exp);
274 printf("\tat %s:%d in %s\n\n", file, line, function);
275 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
276 do {
277 is_valid = TRUE;
278 switch (toupper(getchar())) {
279 case 'A': // ignore (A)ll
280 ignoring_assertions = 1;
281 break;
282 case 'B': // a(B)ort
283 signal(SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
284 raise(SIGABRT);
285 break; /* "can't get here" */
286 case 'D': // (D)ebug, aka asm("int 3")
287#ifdef __IA32__
288 __asm__ __volatile__("int $3"); // break to debugger
289#endif
290 break;
291 case 'E': // (E)xit
292 fatal_error("Failed assertion -- see above for details");
293 break; /* "can't get here" */
294 case 'I': // (I)gnore
295 break;
296 /* These next two work as follows:
297 the `default' catches the user's invalid choice and says so;
298 the '\n' catches the newline on the end and prints the prompt again.
299 */
300 case '\n':
301 printf
302 ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
303 break;
304 default:
305 is_valid = FALSE;
306 printf("Invalid choice.\n");
307 break;
308 }
309 } while (!is_valid);
310
311 if (ignoring_assertions) {
312 log_it("Ignoring ALL assertions from now on.");
313 } else {
314 log_it("Ignoring assertion: %s", exp);
315 }
316
317 getchar(); // skip \n
318
319#ifndef _XWIN
320 if (!g_text_mode)
321 newtResume();
322#endif
323}
324
325/**
326 * Clean's up users' KDE desktops.
327 * @bug Details about this function are unknown.
328 */
329void clean_up_KDE_desktop_if_necessary(void)
330{
331 char *tmp;
332
333 malloc_string(tmp);
334 strcpy(tmp,
335 "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
336file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
337cat $file.old | awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
338else { print $0;};}' > $file ; fi ; done");
339 run_program_and_log_output(tmp, 5);
340 paranoid_free(tmp);
341}
342
343
344/**
345 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
346 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
347 *
348 * @param home_sz String to store the home directory ("" if it could not be found).
349 * @return 0 for success, nonzero for failure.
350 */
351int find_and_store_mondoarchives_home(char *home_sz)
352{
353 assert(home_sz != NULL);
354 strcpy(home_sz,
355 call_program_and_get_last_line_of_output
356 ("find /usr/lib/ /usr/local/ /usr/share/ /usr/local/share/ /opt/ /ramdisk/usr/share/ -type d -maxdepth 2 -name include -prune -o -type d -maxdepth 2 -path '*/mondo/restore-scripts' -printf '%h\n' 2> /dev/null"));
357
358 if (home_sz[0] == '\0') {
359 strcpy(home_sz,
360 call_program_and_get_last_line_of_output
361 ("find /usr -type d -path '*/mondo/restore-scripts' -follow -maxdepth 3 -printf '%h\n' 2> /dev/null"));
362 }
363 if (home_sz[0] == '\0') {
364 return (1);
365 } else {
366 return (0);
367 }
368}
369
370
371char *get_architecture()
372{
373#ifdef __IA32__
374 return ("i386");
375#endif
376#ifdef __IA64__
377 return ("ia64");
378#endif
379 return ("unknown");
380}
381
382
383
384double get_kernel_version()
385{
386 char *p, tmp[200];
387 double d;
388#ifdef __FreeBSD__
389 // JOSH - FIXME :)
390 d = 5.2; // :-)
391#else
392 strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
393 p = strchr(tmp, '.');
394 if (p) {
395 p = strchr(++p, '.');
396 if (p) {
397 while (*p) {
398 *p = *(p + 1);
399 p++;
400 }
401 }
402 }
403// log_msg(1, "tmp = '%s'", tmp);
404 d = atof(tmp);
405#endif
406 log_msg(1, "g_kernel_version = %f", d);
407 return (d);
408}
409
410
411
412
413
414/**
415 * Get the current time.
416 * @return number of seconds since the epoch.
417 */
418long get_time()
419{
420 return (long) time((void *) 0);
421}
422
423
424
425
426
427
428
429/**
430 * Initialize a RAID volume structure, setting fields to zero. The
431 * actual hard drive is unaffected.
432 *
433 * @param raidrec The RAID volume structure to initialize.
434 * @note This function is system dependent.
435 */
436#ifdef __FreeBSD__
437void initialize_raidrec(struct vinum_volume *raidrec)
438{
439 int i, j;
440 raidrec->volname[0] = '\0';
441 raidrec->plexes = 0;
442 for (i = 0; i < 9; ++i) {
443 raidrec->plex[i].raidlevel = -1;
444 raidrec->plex[i].stripesize = 0;
445 raidrec->plex[i].subdisks = 0;
446 for (j = 0; j < 9; ++j) {
447 strcpy(raidrec->plex[i].sd[j].which_device, "");
448 }
449 }
450}
451#else
452void initialize_raidrec(struct raid_device_record *raidrec)
453{
454 assert(raidrec != NULL);
455 raidrec->raid_device[0] = '\0';
456 raidrec->raid_level = 0;
457 raidrec->chunk_size = 4;
458 raidrec->persistent_superblock = 1;
459 raidrec->data_disks.entries = 0;
460 raidrec->spare_disks.entries = 0;
461 raidrec->parity_disks.entries = 0;
462 raidrec->failed_disks.entries = 0;
463 raidrec->additional_vars.entries = 0;
464}
465#endif
466
467
468
469
470/**
471 * Insert modules that Mondo requires.
472 * Currently inserts @c dos, @c fat, @c vfat, and @c osst for Linux;
473 * @c msdosfs and @c ext2fs for FreeBSD.
474 */
475void insmod_crucial_modules(void)
476{
477#ifdef __FreeBSD__
478 system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
479 system("kldstat | grep ext2fs || kldload ext2fs 2> /dev/null");
480#else
481 system("modprobe dos &> /dev/null");
482 system("modprobe fat &> /dev/null");
483 system("modprobe vfat &> /dev/null");
484 // system("modprobe osst &> /dev/null");
485#endif
486}
487
488
489/**
490 * Log a trace message to the trace file.
491 * @bug This function seems orphaned. Please remove.
492 */
493void log_trace(char *o)
494{
495 /*@ pointers **************************************************** */
496 FILE *fout;
497
498 /*@ buffers ***************************************************** */
499 char output[MAX_STR_LEN];
500
501 /*@ int ****************************************************** */
502 int i;
503
504 /*@ end vars *************************************************** */
505
506 if (o[0] == '\0') {
507 return;
508 }
509 strcpy(output, o);
510 i = (int) strlen(output);
511 if (i <= 0) {
512 return;
513 }
514 if (output[i - 1] < 32) {
515 output[i - 1] = '\0';
516 }
517 if (g_text_mode
518 /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
519 printf("%s\n", output);
520 }
521
522 fout = fopen(MONDO_TRACEFILE, "a");
523 if (fout) {
524 fprintf(fout, "%s\n", output);
525 paranoid_fclose(fout);
526 } else {
527 log_OS_error("Cannot write to tracefile");
528 }
529}
530
531
532
533
534
535/**
536 * Finish configuring the backup information structure. Call this function
537 * to set the parameters that depend on those that can be given on the command
538 * line.
539 *
540 * @param bkpinfo The backup information structure. Fields modified/used:
541 * - Used: @c bkpinfo->backup_data
542 * - Used: @c bkpinfo->backup_media_type
543 * - Used: @c bkpinfo->cdrw_speed
544 * - Used: @c bkpinfo->compression_level
545 * - Used: @c bkpinfo->include_paths
546 * - Used: @c bkpinfo->prefix
547 * - Used: @c bkpinfo->isodir
548 * - Used: @c bkpinfo->manual_cd_tray
549 * - Used: @c bkpinfo->make_cd_use_lilo
550 * - Used: @c bkpinfo->media_device
551 * - Used: @c bkpinfo->nfs_mount
552 * - Used: @c bkpinfo->nonbootable_backup
553 * - Used: @c bkpinfo->scratchdir
554 * - Used: @c bkpinfo->tmpdir
555 * - Used: @c bkpinfo->use_lzo
556 * - Modified: @c bkpinfo->call_before_iso
557 * - Modified: @c bkpinfo->call_make_iso
558 * - Modified: @c bkpinfo->optimal_set_size
559 * - Modified: @c bkpinfo->zip_exe
560 * - Modified: @c bkpinfo->zip_suffix
561 *
562 * @return number of errors, or 0 for success.
563 * @note Also creates directories that are specified in the @c bkpinfo structure but
564 * do not exist.
565 */
566int post_param_configuration(struct s_bkpinfo *bkpinfo)
567{
568 char *extra_cdrom_params;
569 char *mondo_mkisofs_sz;
570 char *command;
571 char *mtpt;
572 char *hostname, *ip_address;
573 int retval = 0;
574 long avm = 0;
575 char *colon;
576 char *cdr_exe;
577 char *tmp;
578 char call_before_iso_user[MAX_STR_LEN] = "\0";
579 int rdsiz_MB;
580 char *iso_dev;
581 char *iso_mnt;
582 char *iso_tmp;
583 char *iso_path;
584
585 assert(bkpinfo != NULL);
586 malloc_string(extra_cdrom_params);
587 malloc_string(mondo_mkisofs_sz);
588 malloc_string(command);
589 malloc_string(mtpt);
590 malloc_string(hostname);
591 malloc_string(ip_address);
592 malloc_string(cdr_exe);
593 malloc_string(tmp);
594 malloc_string(iso_dev);
595 malloc_string(iso_mnt);
596 malloc_string(iso_tmp);
597 malloc_string(iso_path);
598 bkpinfo->optimal_set_size =
599 (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 4 : 8) *
600 1024;
601
602 log_msg(1, "Foo");
603 if (bkpinfo->backup_media_type == tape) {
604 log_msg(1, "Bar");
605 sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
606 log_msg(1, "tmp = '%s'", tmp);
607 if (run_program_and_log_output(tmp, 3)) {
608 fatal_error
609 ("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.");
610 }
611 }
612 make_hole_for_dir(bkpinfo->scratchdir);
613 make_hole_for_dir(bkpinfo->tmpdir);
614 if (bkpinfo->backup_media_type == iso)
615 make_hole_for_dir(bkpinfo->isodir);
616
617 run_program_and_log_output("uname -a", 5);
618 run_program_and_log_output("cat /etc/*issue*", 5);
619 sprintf(g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
620 sprintf(command, "mkdir -p %s", g_tmpfs_mountpt);
621 paranoid_system(command);
622 rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
623#ifdef __FreeBSD__
624 strcpy(tmp,
625 call_program_and_get_last_line_of_output
626 ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
627 avm += atol(tmp);
628 strcpy(tmp,
629 call_program_and_get_last_line_of_output
630 ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
631 avm += atol(tmp);
632 sprintf(command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
633 g_tmpfs_mountpt);
634#else
635 strcpy(tmp,
636 call_program_and_get_last_line_of_output
637 ("free | grep \":\" | tr -s ' ' '\t' | cut -f2 | head -n1"));
638 avm += atol(tmp);
639 sprintf(command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
640 g_tmpfs_mountpt, rdsiz_MB, 'm');
641 run_program_and_log_output("cat /proc/cpuinfo", 5);
642 run_program_and_log_output
643 ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
644 5);
645#endif
646 if (avm / 1024 > rdsiz_MB * 3) {
647 if (run_program_and_log_output(command, 5)) {
648 g_tmpfs_mountpt[0] = '\0';
649 log_it("Failed to mount tmpfs");
650 } else {
651 log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
652 }
653 } else {
654 g_tmpfs_mountpt[0] = '\0';
655 log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
656 }
657
658 if (bkpinfo->use_lzo) {
659 strcpy(bkpinfo->zip_exe, "lzop");
660 strcpy(bkpinfo->zip_suffix, "lzo");
661 } else if (bkpinfo->compression_level != 0) {
662 strcpy(bkpinfo->zip_exe, "bzip2");
663 strcpy(bkpinfo->zip_suffix, "bz2");
664 } else {
665 bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
666 }
667
668// DVD
669
670 if (bkpinfo->backup_media_type == dvd) {
671 extra_cdrom_params[0] = '\0';
672 mondo_mkisofs_sz[0] = '\0';
673 if (find_home_of_exe("growisofs")) {
674 strcpy(cdr_exe, "growisofs");
675 } // unlikely to be used
676 else {
677 fatal_error("Please install growisofs.");
678 }
679 if (bkpinfo->nonbootable_backup) {
680 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
681 } else if
682#ifdef __FreeBSD__
683 (TRUE)
684#else
685 (bkpinfo->make_cd_use_lilo)
686#endif
687#ifdef __IA64__
688 {
689 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
690 }
691#else
692 {
693 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
694 }
695#endif
696 else
697 {
698 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
699 }
700 if (bkpinfo->manual_cd_tray) {
701 fatal_error("Manual CD tray + DVD not supported yet.");
702 // -m isn't supported by growisofs, BTW...
703 } else {
704 sprintf(bkpinfo->call_make_iso,
705 "%s %s -Z %s . 2>> _ERR_",
706 mondo_mkisofs_sz,
707 extra_cdrom_params, bkpinfo->media_device);
708 }
709 if (getenv ("SUDO_COMMAND")) {
710 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
711 }
712 log_msg(2, "call_make_iso (DVD res) is ... %s",
713 bkpinfo->call_make_iso);
714 } // end of DVD code
715
716// CD-R or CD-RW
717 if (bkpinfo->backup_media_type == cdrw
718 || bkpinfo->backup_media_type == cdr) {
719 extra_cdrom_params[0] = '\0';
720 if (!bkpinfo->manual_cd_tray) {
721 strcat(extra_cdrom_params, "-waiti ");
722 }
723 if (bkpinfo->backup_media_type == cdrw) {
724 strcat(extra_cdrom_params, "blank=fast ");
725 }
726 if (find_home_of_exe("cdrecord")) {
727 strcpy(cdr_exe, "cdrecord");
728 } else if (find_home_of_exe("dvdrecord")) {
729 strcpy(cdr_exe, "dvdrecord");
730 } else {
731 fatal_error("Please install either cdrecord or dvdrecord.");
732 }
733 if (bkpinfo->nonbootable_backup) {
734 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
735 } else if
736#ifdef __FreeBSD__
737 (TRUE)
738#else
739 (bkpinfo->make_cd_use_lilo)
740#endif
741#ifdef __IA64__
742 {
743 strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
744 }
745#else
746 {
747 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
748 }
749#endif
750 else
751 {
752 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
753 }
754 if (bkpinfo->manual_cd_tray) {
755 if (bkpinfo->call_before_iso[0] == '\0') {
756 sprintf(bkpinfo->call_before_iso,
757 "%s -o %s/temporary.iso . 2>> _ERR_",
758 mondo_mkisofs_sz, bkpinfo->tmpdir);
759 } else {
760 strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
761 sprintf (bkpinfo->call_before_iso,
762 "( %s -o %s/temporary.iso . 2>> _ERR_ ; %s )",
763 mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
764 }
765 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
766 sprintf(bkpinfo->call_make_iso,
767 "%s %s -v %s fs=4m dev=%s speed=%d %s/temporary.iso",
768 cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
769 extra_cdrom_params, bkpinfo->media_device,
770 bkpinfo->cdrw_speed, bkpinfo->tmpdir);
771 } else {
772 sprintf(bkpinfo->call_make_iso,
773 "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
774 mondo_mkisofs_sz, cdr_exe,
775 (bkpinfo->please_dont_eject) ? " " : "-eject",
776 extra_cdrom_params, bkpinfo->media_device,
777 bkpinfo->cdrw_speed);
778 }
779 } // end of CD code
780
781 /*
782 if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
783 {
784 sprintf (tmp,
785 "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
786 bkpinfo->media_device, bkpinfo->internal_tape_block_size);
787 if (system(tmp))
788 {
789 retval++;
790 fprintf (stderr,
791 "Cannot write to tape device. Is the tape set read-only?\n");
792 }
793 } // end of tape code
794 */
795
796
797 if (bkpinfo->backup_media_type == iso) {
798
799/* Patch by Conor Daly <conor.daly@met.ie>
800 * 23-june-2004
801 * Break up isodir into iso_mnt and iso_path
802 * These will be used along with iso-dev at restore time
803 * to locate the ISOs where ever they're mounted
804 */
805
806 log_it("isodir = %s", bkpinfo->isodir);
807 sprintf(command, "df %s | tail -n1 | cut -d' ' -f1",
808 bkpinfo->isodir);
809 log_it("command = %s", command);
810 log_it("res of it = %s",
811 call_program_and_get_last_line_of_output(command));
812 sprintf(iso_dev, "%s",
813 call_program_and_get_last_line_of_output(command));
814 sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
815 write_one_liner_data_file(tmp,
816 call_program_and_get_last_line_of_output
817 (command));
818
819 sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
820 iso_dev);
821 log_it("command = %s", command);
822 log_it("res of it = %s",
823 call_program_and_get_last_line_of_output(command));
824 sprintf(iso_mnt, "%s",
825 call_program_and_get_last_line_of_output(command));
826 sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
827 write_one_liner_data_file(tmp,
828 call_program_and_get_last_line_of_output
829 (command));
830 log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
831 sprintf(iso_tmp, "%s", bkpinfo->isodir);
832 if (strlen(iso_tmp) < strlen(iso_mnt)) {
833 iso_path[0] = '\0';
834 } else {
835 sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
836 }
837 sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
838 write_one_liner_data_file(tmp, iso_path);
839 log_it("isodir: %s", iso_path);
840 sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
841 write_one_liner_data_file(tmp, bkpinfo->prefix);
842 log_it("iso-prefix: %s", bkpinfo->prefix);
843
844/* End patch */
845 } // end of iso code
846
847 if (bkpinfo->backup_media_type == nfs) {
848 strcpy(hostname, bkpinfo->nfs_mount);
849 colon = strchr(hostname, ':');
850 if (!colon) {
851 log_it("nfs mount doesn't have a colon in it");
852 retval++;
853 } else {
854 struct hostent *hent;
855
856 *colon = '\0';
857 hent = gethostbyname(hostname);
858 if (!hent) {
859 log_it("Can't resolve NFS mount (%s): %s", hostname,
860 hstrerror(h_errno));
861 retval++;
862 } else {
863 strcpy(ip_address, inet_ntoa
864 ((struct in_addr)
865 *((struct in_addr *) hent->h_addr)));
866 strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
867 strcpy(bkpinfo->nfs_mount, ip_address);
868 }
869 }
870 store_nfs_config(bkpinfo);
871 }
872
873 log_it("Finished processing incoming params");
874 if (retval) {
875 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
876 }
877 sprintf(tmp, "%s", MONDO_TMPISOS); /* added #define 22 apr 2002 */
878 if (does_file_exist(tmp)) {
879 unlink(tmp);
880 }
881 if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
882 log_it("tmpdir or scratchdir are blank/missing");
883 retval++;
884 }
885 if (bkpinfo->include_paths[0] == '\0') {
886 // fatal_error ("Why no backup path?");
887 strcpy(bkpinfo->include_paths, "/");
888 }
889 chmod(bkpinfo->scratchdir, 0700);
890 chmod(bkpinfo->tmpdir, 0700);
891 g_backup_media_type = bkpinfo->backup_media_type;
892 paranoid_free(mtpt);
893 paranoid_free(extra_cdrom_params);
894 paranoid_free(mondo_mkisofs_sz);
895 paranoid_free(command);
896 paranoid_free(hostname);
897 paranoid_free(ip_address);
898 paranoid_free(cdr_exe);
899 paranoid_free(tmp);
900 paranoid_free(iso_dev);
901 paranoid_free(iso_mnt);
902 paranoid_free(iso_tmp);
903 paranoid_free(iso_path);
904 return (retval);
905}
906
907
908
909/**
910 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
911 * Seeds the random-number generator, loads important modules, checks the sanity
912 * of the user's Linux distribution, and deletes logfile.
913 * @param bkpinfo The backup information structure. Will be initialized.
914 * @return number of errors (0 for success)
915 */
916int pre_param_configuration(struct s_bkpinfo *bkpinfo)
917{
918 int res = 0;
919
920 make_hole_for_dir(MNT_CDROM);
921 assert(bkpinfo != NULL);
922 srandom((unsigned long) (time(NULL)));
923 insmod_crucial_modules();
924 reset_bkpinfo(bkpinfo); // also sets defaults ('/'=backup path, 3=compression level)
925 if (bkpinfo->disaster_recovery) {
926 if (!does_nonMS_partition_exist()) {
927 fatal_error
928 ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
929 }
930 }
931
932 unlink(MONDO_TRACEFILE);
933 run_program_and_log_output("rm -Rf /tmp/changed.files*", FALSE);
934 if (find_and_store_mondoarchives_home(g_mondo_home)) {
935 fprintf(stderr,
936 "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");
937 res++;
938 return (res);
939 }
940 res += some_basic_system_sanity_checks();
941 if (res) {
942 log_it("Your distribution did not pass Mondo's sanity test.");
943 }
944 g_current_media_number = 1;
945 bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
946 return (res);
947}
948
949
950
951
952/**
953 * Reset all fields of the backup information structure to a sensible default.
954 * @param bkpinfo The @c bkpinfo to reset.
955 */
956void reset_bkpinfo(struct s_bkpinfo *bkpinfo)
957{
958 int i;
959
960 log_msg(1, "Hi");
961 assert(bkpinfo != NULL);
962 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
963 bkpinfo->manual_cd_tray = FALSE;
964 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
965 bkpinfo->media_device[0] = '\0';
966 for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
967 bkpinfo->media_size[i] = -1;
968 }
969 bkpinfo->boot_loader = '\0';
970 bkpinfo->boot_device[0] = '\0';
971 bkpinfo->zip_exe[0] = '\0';
972 bkpinfo->zip_suffix[0] = '\0';
973 bkpinfo->restore_path[0] = '\0';
974 bkpinfo->use_lzo = FALSE;
975 bkpinfo->do_not_compress_these[0] = '\0';
976 bkpinfo->verify_data = FALSE;
977 bkpinfo->backup_data = FALSE;
978 bkpinfo->restore_data = FALSE;
979 bkpinfo->disaster_recovery =
980 (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
981 if (bkpinfo->disaster_recovery) {
982 strcpy(bkpinfo->isodir, "/");
983 } else {
984 strcpy(bkpinfo->isodir, "/root/images/mondo");
985 }
986 strcpy(bkpinfo->prefix, STD_PREFIX);
987
988 bkpinfo->scratchdir[0] = '\0';
989 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
990 sprintf(bkpinfo->tmpdir, "/tmp/tmpfs/mondo.tmp.%d", (int) (random() % 32768)); // for mondorestore
991 bkpinfo->optimal_set_size = 0;
992 bkpinfo->backup_media_type = none;
993 strcpy(bkpinfo->include_paths, "/");
994 bkpinfo->exclude_paths[0] = '\0';
995 bkpinfo->call_before_iso[0] = '\0';
996 bkpinfo->call_make_iso[0] = '\0';
997 bkpinfo->call_burn_iso[0] = '\0';
998 bkpinfo->call_after_iso[0] = '\0';
999 bkpinfo->image_devs[0] = '\0';
1000 bkpinfo->postnuke_tarball[0] = '\0';
1001 bkpinfo->kernel_path[0] = '\0';
1002 bkpinfo->nfs_mount[0] = '\0';
1003 bkpinfo->nfs_remote_dir[0] = '\0';
1004 bkpinfo->wipe_media_first = FALSE;
1005 bkpinfo->differential = FALSE;
1006 bkpinfo->cdrw_speed = 0;
1007// patch by Herman Kuster
1008 bkpinfo->differential = 0;
1009// patch end
1010 bkpinfo->compression_level = 3;
1011}
1012
1013
1014
1015
1016/**
1017 * Get the remaining free space (in MB) on @p partition.
1018 * @param partition The partition to check free space on (either a device or a mountpoint).
1019 * @return The free space on @p partition, in MB.
1020 */
1021long free_space_on_given_partition(char *partition)
1022{
1023 char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
1024 long res;
1025
1026 assert_string_is_neither_NULL_nor_zerolength(partition);
1027
1028 sprintf(command, "df -m %s &> /dev/null", partition);
1029 if (system(command)) {
1030 return (-1);
1031 } // partition does not exist
1032 sprintf(command, "df -m %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
1033 partition);
1034 strcpy(out_sz, call_program_and_get_last_line_of_output(command));
1035 if (strlen(out_sz) == 0) {
1036 return (-1);
1037 } // error within df, probably
1038 res = atol(out_sz);
1039 return (res);
1040}
1041
1042
1043
1044/**
1045 * Check the user's system for sanity. Checks performed:
1046 * - make sure user has enough RAM (32mb required, 64mb recommended)
1047 * - make sure user has enough free space in @c /
1048 * - check kernel for ramdisk support
1049 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
1050 * - make sure CD-ROM is unmounted
1051 * - make sure /etc/modules.conf exists
1052 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
1053 *
1054 * @return number of problems with the user's setup (0 for success)
1055 */
1056int some_basic_system_sanity_checks()
1057{
1058
1059 /*@ buffers ************ */
1060 char tmp[MAX_STR_LEN];
1061 // char command[MAX_STR_LEN];
1062
1063 /*@ int's *************** */
1064 int retval = 0;
1065 long Lres;
1066
1067
1068 mvaddstr_and_log_it(g_currentY, 0,
1069 "Checking sanity of your Linux distribution");
1070#ifndef __FreeBSD__
1071 if (system("which mkfs.vfat &> /dev/null")
1072 && !system("which mkfs.msdos &> /dev/null")) {
1073 log_it
1074 ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
1075 run_program_and_log_output
1076 ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
1077 }
1078 strcpy(tmp,
1079 call_program_and_get_last_line_of_output
1080 ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
1081 if (atol(tmp) < 35000) {
1082 retval++;
1083 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
1084 }
1085 if (atol(tmp) < 66000) {
1086 log_to_screen
1087 ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
1088 }
1089#endif
1090
1091 if ((Lres = free_space_on_given_partition("/root")) == -1) {
1092 Lres = free_space_on_given_partition("/");
1093 }
1094 log_it("Free space on given partition = %ld MB", Lres);
1095
1096 if (Lres < 50) {
1097 run_program_and_log_output
1098 ("rm -Rf /root/images/mindi; mkdir -p /home/root/images/mindi; mkdir -p /root/images; ln -sf /home/root/images/mindi /root/images/mindi",
1099 3);
1100 // fatal_error("Your / (or /root) partition has <50MB free. Please adjust your partition table to something saner.");
1101 }
1102
1103 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
1104 retval++;
1105 log_to_screen
1106 ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
1107 fatal_error
1108 ("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. :)");
1109 }
1110#ifndef __FreeBSD__
1111 if (run_program_and_log_output
1112 ("cat /proc/devices | grep ramdisk", FALSE)) {
1113 if (!ask_me_yes_or_no
1114 ("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?"))
1115 {
1116 // retval++;
1117 log_to_screen
1118 ("It looks as if your kernel lacks ramdisk and initrd support.");
1119 log_to_screen
1120 ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
1121 }
1122 }
1123#endif
1124 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
1125 retval += whine_if_not_found("mkisofs");
1126 if (system("which dvdrecord > /dev/null 2> /dev/null")) {
1127 retval += whine_if_not_found("cdrecord");
1128 }
1129 retval += whine_if_not_found("bzip2");
1130 retval += whine_if_not_found("awk");
1131 retval += whine_if_not_found("md5sum");
1132 retval += whine_if_not_found("strings");
1133 retval += whine_if_not_found("mindi");
1134 retval += whine_if_not_found("buffer");
1135
1136 // abort if Windows partition but no ms-sys and parted
1137 if (!run_program_and_log_output
1138 ("mount | grep -w vfat | grep -v /dev/fd | grep -v nexdisk", 0)
1139 ||
1140 !run_program_and_log_output
1141 ("mount | grep -w dos | grep -v /dev/fd | grep -v nexdisk", 0)) {
1142 log_to_screen("I think you have a Windows 9x partition.");
1143 retval += whine_if_not_found("parted");
1144#ifndef __IA64__
1145 /* IA64 always has one vfat partition for EFI even without Windows */
1146 // retval +=
1147 if (!find_home_of_exe("ms-sys")) {
1148 log_to_screen("Please install ms-sys just in case.");
1149 }
1150#endif
1151 }
1152
1153 if (!find_home_of_exe("cmp")) {
1154 if (!find_home_of_exe("true")) {
1155 whine_if_not_found("cmp");
1156 } else {
1157 log_to_screen
1158 ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1159 if (run_program_and_log_output
1160 ("cp -f `which true` /usr/bin/cmp", 0)) {
1161 fatal_error("Failed to create dummy 'cmp' file.");
1162 }
1163 }
1164 }
1165 run_program_and_log_output
1166 ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1167 strcpy(tmp,
1168 call_program_and_get_last_line_of_output
1169 ("mount | grep -E \"cdr(om|w)\""));
1170 if (strcmp("", tmp)) {
1171 if (strstr(tmp, "autofs")) {
1172 log_to_screen
1173 ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1174 log_to_screen
1175 ("if a CD actually is inserted. If a CD is inserted, please");
1176 log_to_screen("eject it. Thank you.");
1177 log_it
1178 ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1179 } else
1180 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1181 retval++;
1182 fatal_error
1183 ("Your CD-ROM drive is mounted. Please unmount it.");
1184 }
1185 }
1186#ifndef __FreeBSD__
1187 if (!does_file_exist("/etc/modules.conf")) {
1188 if (does_file_exist("/etc/conf.modules")) {
1189 log_it("Linking /etc/modules.conf to /etc/conf.modules");
1190 run_program_and_log_output
1191 ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
1192 } else if (does_file_exist("/etc/modprobe.d")) {
1193 log_it
1194 ("Directory /etc/modprobe.d found. mindi will use its contents.");
1195 } else if (does_file_exist("/etc/modprobe.conf")) {
1196 log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
1197 run_program_and_log_output
1198 ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
1199 } else {
1200 retval++;
1201 log_to_screen
1202 ("Please find out what happened to /etc/modules.conf");
1203 }
1204 }
1205#endif
1206
1207 run_program_and_log_output("cat /etc/fstab", 5);
1208#ifdef __FreeBSD__
1209 run_program_and_log_output("vinum printconfig", 5);
1210#else
1211 run_program_and_log_output("cat /etc/raidtab", 5);
1212#endif
1213
1214 if (run_program_and_log_output("mindi -V", 1)) {
1215 log_to_screen("Could not ascertain mindi's version number.");
1216 log_to_screen
1217 ("You have not installed Mondo and/or Mindi properly.");
1218 log_to_screen("Please uninstall and reinstall them both.");
1219 fatal_error("Please reinstall Mondo and Mindi.");
1220 }
1221 if (run_program_and_log_output
1222 ("mindi --makemountlist /tmp/mountlist.txt.test", 5)) {
1223 log_to_screen
1224 ("Mindi --makemountlist /tmp/mountlist.txt.test failed for some reason.");
1225 log_to_screen
1226 ("Please run that command by hand and examine /var/log/mindi.log");
1227 log_to_screen
1228 ("for more information. Perhaps your /etc/fstab file is insane.");
1229 log_to_screen
1230 ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1231 retval++;
1232 }
1233
1234 if (!run_program_and_log_output("fdisk -l | grep -i raid", 1)
1235 && !does_file_exist("/etc/raidtab")) {
1236 log_to_screen
1237 ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1238 create_raidtab_from_mdstat("/etc/raidtab", "/proc/mdstat");
1239 }
1240
1241 if (retval) {
1242 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1243 } else {
1244 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1245 }
1246 return (retval);
1247}
1248
1249/**
1250 * Retrieve the line containing @p label from the config file.
1251 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1252 * @param label What to read from the file.
1253 * @param value Where to put it.
1254 * @return 0 for success, 1 for failure.
1255 */
1256int read_cfg_var(char *config_file, char *label, char *value)
1257{
1258 /*@ buffer ****************************************************** */
1259 char command[MAX_STR_LEN * 2];
1260 char tmp[MAX_STR_LEN];
1261
1262 /*@ end vars *************************************************** */
1263
1264 assert_string_is_neither_NULL_nor_zerolength(config_file);
1265 assert_string_is_neither_NULL_nor_zerolength(label);
1266 if (!does_file_exist(config_file)) {
1267 sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1268 config_file);
1269 log_to_screen(tmp);
1270 value[0] = '\0';
1271 return (1);
1272 } else if (strstr(value, "/dev/") && strstr(value, "t0")
1273 && !strcmp(label, "media-dev")) {
1274 log_msg(2, "FYI, I shan't read new value for %s - already got %s",
1275 label, value);
1276 return (0);
1277 } else {
1278 sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1279 label, config_file);
1280 strcpy(value, call_program_and_get_last_line_of_output(command));
1281 if (strlen(value) == 0) {
1282 return (1);
1283 } else {
1284 return (0);
1285 }
1286 }
1287}
1288
1289
1290
1291/**
1292 * Remount @c supermount if it was unmounted earlier.
1293 */
1294void remount_supermounts_if_necessary()
1295{
1296 if (g_remount_cdrom_at_end) {
1297 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1298 }
1299 if (g_remount_floppy_at_end) {
1300 run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1301 }
1302}
1303
1304/**
1305 * Unmount @c supermount if it's mounted.
1306 */
1307void unmount_supermounts_if_necessary()
1308{
1309 if (run_program_and_log_output
1310 ("mount | grep cdrom | grep super", FALSE) == 0) {
1311 g_remount_cdrom_at_end = TRUE;
1312 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1313 }
1314 if (run_program_and_log_output
1315 ("mount | grep floppy | grep super", FALSE) == 0) {
1316 g_remount_floppy_at_end = TRUE;
1317 run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1318 }
1319}
1320
1321/**
1322 * Whether we had to stop autofs (if so, restart it at end).
1323 */
1324bool g_autofs_stopped = FALSE;
1325
1326/**
1327 * Path to the autofs initscript ("" if none exists).
1328 */
1329char g_autofs_exe[MAX_STR_LEN];
1330
1331/**
1332 * Autofs initscript in Xandros Linux distribution.
1333 */
1334#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1335
1336/**
1337 * Autofs initscript in most Linux distributions.
1338 */
1339#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1340
1341/**
1342 * If autofs is mounted, stop it (restart at end).
1343 */
1344void stop_autofs_if_necessary()
1345{
1346 char tmp[MAX_STR_LEN];
1347
1348 g_autofs_exe[0] = '\0';
1349 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1350 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1351 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1352 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1353 }
1354
1355 if (!g_autofs_exe[0]) {
1356 log_msg(3, "No autofs detected.");
1357 } else {
1358 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1359// FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1360 sprintf(tmp, "%s stop", g_autofs_exe);
1361 if (run_program_and_log_output(tmp, 2)) {
1362 log_it("Failed to stop autofs - I assume it wasn't running");
1363 } else {
1364 g_autofs_stopped = TRUE;
1365 log_it("Stopped autofs OK");
1366 }
1367 }
1368}
1369
1370/**
1371 * If autofs was stopped earlier, restart it.
1372 */
1373void restart_autofs_if_necessary()
1374{
1375 char tmp[MAX_STR_LEN];
1376
1377 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1378 log_msg(3, "No autofs detected.");
1379 return;
1380 }
1381 sprintf(tmp, "%s start", g_autofs_exe);
1382 if (run_program_and_log_output(tmp, 2)) {
1383 log_it("Failed to start autofs");
1384 } else {
1385 g_autofs_stopped = FALSE;
1386 log_it("Started autofs OK");
1387 }
1388}
1389
1390
1391/**
1392 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1393 */
1394void mount_boot_if_necessary()
1395{
1396 char tmp[MAX_STR_LEN];
1397 char command[MAX_STR_LEN];
1398
1399 log_msg(1, "Started sub");
1400 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1401 g_boot_mountpt[0] = '\0';
1402 log_msg(4, "Done. Great. Seeting command to something");
1403 strcpy(command,
1404 "cat /etc/fstab | grep -v \":\" | grep -vx \"#.*\" | grep -w \"/boot\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1405 log_msg(4, "Cool. Command = '%s'", command);
1406 strcpy(tmp, call_program_and_get_last_line_of_output(command));
1407 log_msg(4, "tmp = '%s'", tmp);
1408 if (tmp[0]) {
1409 log_it("/boot is at %s according to /etc/fstab", tmp);
1410 if (strstr(tmp, "LABEL=")) {
1411 if (!run_program_and_log_output("mount /boot", 5)) {
1412 strcpy(g_boot_mountpt, "/boot");
1413 log_msg(1, "Mounted /boot");
1414 } else {
1415 log_it("...ignored cos it's a label :-)");
1416 }
1417 } else {
1418 sprintf(command, "mount | grep -w \"%s\"", tmp);
1419 log_msg(3, "command = %s", command);
1420 if (run_program_and_log_output(command, 5)) {
1421 strcpy(g_boot_mountpt, tmp);
1422 sprintf(tmp,
1423 "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1424 g_boot_mountpt);
1425 log_it(tmp);
1426 sprintf(tmp, "mount %s", g_boot_mountpt);
1427 if (run_program_and_log_output(tmp, 5)) {
1428 g_boot_mountpt[0] = '\0';
1429 log_msg(1, "Plan B");
1430 if (!run_program_and_log_output("mount /boot", 5)) {
1431 strcpy(g_boot_mountpt, "/boot");
1432 log_msg(1, "Plan B worked");
1433 } else {
1434 log_msg(1,
1435 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1436 }
1437 }
1438 }
1439 }
1440 }
1441 log_msg(1, "Ended sub");
1442}
1443
1444
1445/**
1446 * If we mounted /boot earlier, unmount it.
1447 */
1448void unmount_boot_if_necessary()
1449{
1450 char tmp[MAX_STR_LEN];
1451
1452 log_msg(3, "starting");
1453 if (g_boot_mountpt[0]) {
1454 sprintf(tmp, "umount %s", g_boot_mountpt);
1455 if (run_program_and_log_output(tmp, 5)) {
1456 log_it("WARNING - unable to unmount /boot");
1457 }
1458 }
1459 log_msg(3, "leaving");
1460}
1461
1462
1463
1464/**
1465 * Write a line to a configuration file. Writes a line of the form,
1466 * @c label @c value.
1467 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1468 * @param label What to call this bit of data you're writing.
1469 * @param value The bit of data you're writing.
1470 * @return 0 for success, 1 for failure.
1471 */
1472int write_cfg_var(char *config_file, char *label, char *value)
1473{
1474 /*@ buffers ***************************************************** */
1475 char command[MAX_STR_LEN * 2];
1476 char tempfile[MAX_STR_LEN];
1477 char tmp[MAX_STR_LEN];
1478
1479
1480 /*@ end vars *************************************************** */
1481 assert_string_is_neither_NULL_nor_zerolength(config_file);
1482 assert_string_is_neither_NULL_nor_zerolength(label);
1483 assert(value != NULL);
1484 if (!does_file_exist(config_file)) {
1485 sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1486 config_file);
1487 log_to_screen(tmp);
1488 return (1);
1489 }
1490 strcpy(tempfile,
1491 call_program_and_get_last_line_of_output
1492 ("mktemp -q /tmp/mojo-jojo.blah.XXXXXX"));
1493 if (does_file_exist(config_file)) {
1494 sprintf(command, "grep -vx '%s .*' %s > %s",
1495 label, config_file, tempfile);
1496 paranoid_system(command);
1497 }
1498 sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1499 paranoid_system(command);
1500 sprintf(command, "mv -f %s %s", tempfile, config_file);
1501 paranoid_system(command);
1502 unlink(tempfile);
1503 return (0);
1504}
1505
1506
1507/**
1508 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1509 * information to the logfile.
1510 */
1511void standard_log_debug_msg(int debug_level, const char *szFile,
1512 const char *szFunction, int nLine,
1513 const char *fmt, ...)
1514{
1515 va_list args;
1516 int i;
1517 static int depth = 0;
1518 char *tmp;
1519 FILE *fout;
1520
1521 if (depth > 5) {
1522 depth--;
1523 return;
1524 }
1525 depth++;
1526
1527 malloc_string(tmp);
1528
1529 if (debug_level <= g_loglevel) {
1530 va_start(args, fmt);
1531 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1532 return;
1533 } // fatal_error("Failed to openout to logfile - sheesh..."); }
1534
1535 // add tabs to distinguish log levels
1536 if (debug_level > 0) {
1537 for (i = 1; i < debug_level; i++)
1538 fprintf(fout, "\t");
1539 if (getpid() == g_main_pid)
1540 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1541 nLine);
1542 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1543 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1544 nLine);
1545 else
1546 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1547 szFunction, nLine);
1548 }
1549 vfprintf(fout, fmt, args);
1550
1551 // do not slow down the progran if standard debug level
1552 // must be enabled: if no flush, the log won't be up-to-date if there
1553 // is a segfault
1554 //if (g_dwDebugLevel != 1)
1555
1556 va_end(args);
1557 fprintf(fout, "\n");
1558 paranoid_fclose(fout);
1559 }
1560 depth--;
1561 paranoid_free(tmp);
1562}
1563
1564/**
1565 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1566 */
1567void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1568 ...) = standard_log_debug_msg;
1569
1570
1571/**
1572 * If @p y, malloc @p x, else free @p x.
1573 * @bug This function seems orphaned. Please remove.
1574 */
1575#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1576
1577/**
1578 * Allocate or free important globals, depending on @p mal.
1579 * @param mal If TRUE, malloc; if FALSE, free.
1580 */
1581void do_libmondo_global_strings_thing(int mal)
1582{
1583 if (mal) {
1584 iamhere("Malloc'ing globals");
1585 malloc_string(g_boot_mountpt);
1586 malloc_string(g_mondo_home);
1587 malloc_string(g_tmpfs_mountpt);
1588 malloc_string(g_erase_tmpdir_and_scratchdir);
1589 malloc_string(g_serial_string);
1590 malloc_string(g_magicdev_command);
1591 } else {
1592 iamhere("Freeing globals");
1593 paranoid_free(g_boot_mountpt);
1594 paranoid_free(g_mondo_home);
1595 paranoid_free(g_tmpfs_mountpt);
1596 paranoid_free(g_erase_tmpdir_and_scratchdir);
1597 paranoid_free(g_serial_string);
1598 paranoid_free(g_magicdev_command);
1599 }
1600
1601 /*
1602 char**list_of_arrays[] = {
1603 &g_boot_mountpt,
1604 &g_mondo_home,
1605 &g_tmpfs_mountpt,
1606 &g_erase_tmpdir_and_scratchdir,
1607 &g_serial_string,
1608 &g_magicdev_command,
1609 NULL};
1610
1611 char**ppcurr;
1612 int i;
1613
1614 for(i=0;list_of_arrays[i];i++)
1615 {
1616 log_msg(5, "Allocating %d", i);
1617 ppcurr = list_of_arrays[i];
1618 if (mal)
1619 { *ppcurr = malloc(MAX_STR_LEN); }
1620 else
1621 {
1622 if (*ppcurr)
1623 {
1624 free(*ppcurr);
1625 }
1626 }
1627 }
1628 log_msg(5, "Returning");
1629 */
1630}
1631
1632/**
1633 * Allocate important globals.
1634 * @see do_libmondo_global_strings_thing
1635 */
1636void malloc_libmondo_global_strings(void)
1637{
1638 do_libmondo_global_strings_thing(1);
1639}
1640
1641/**
1642 * Free important globals.
1643 * @see do_libmondo_global_strings_thing
1644 */
1645void free_libmondo_global_strings(void)
1646{
1647 do_libmondo_global_strings_thing(0);
1648}
1649
1650
1651
1652/**
1653 * Stop @c magicdev if it's running.
1654 * The command used to start it is saved in @p g_magicdev_command.
1655 */
1656void stop_magicdev_if_necessary()
1657{
1658 strcpy(g_magicdev_command,
1659 call_program_and_get_last_line_of_output
1660 ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1661 if (g_magicdev_command[0]) {
1662 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1663 paranoid_system("killall magicdev");
1664 }
1665}
1666
1667
1668/**
1669 * Restart magicdev if it was stopped.
1670 */
1671void restart_magicdev_if_necessary()
1672{
1673 char *tmp;
1674
1675 malloc_string(tmp);
1676 if (g_magicdev_command && g_magicdev_command[0]) {
1677 sprintf(tmp, "%s &", g_magicdev_command);
1678 paranoid_system(tmp);
1679 }
1680 paranoid_free(tmp);
1681}
1682
1683/* @} - end of utilityGroup */
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