source: MondoRescue/branches/2.2.5/mondo/src/common/libmondo-tools.c@ 1652

Last change on this file since 1652 was 1652, checked in by Bruno Cornec, 17 years ago

Always wrokign on fixing tmpdir problems
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File size: 45.0 KB
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1/* libmondo-tools.c misc tools
2 $Id: libmondo-tools.c 1652 2007-09-24 11:07:01Z bruno $
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#include <sys/utsname.h>
187
188/*@unused@*/
189//static char cvsid[] = "$Id: libmondo-tools.c 1652 2007-09-24 11:07:01Z bruno $";
190
191extern int g_tape_buffer_size_MB;
192extern char *g_erase_tmpdir_and_scratchdir;
193extern char *g_serial_string;
194extern bool g_text_mode;
195extern int g_currentY;
196extern int g_current_media_number;
197extern char *MONDO_LOGFILE;
198
199/* Reference to global bkpinfo */
200extern struct s_bkpinfo *bkpinfo;
201
202/**
203 * @addtogroup globalGroup
204 * @{
205 */
206bool g_remount_cdrom_at_end, ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
207 g_remount_floppy_at_end; ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
208bool g_cd_recovery; ///< TRUE if we're making an "autonuke" backup.
209double g_kernel_version;
210
211/**
212 * The place where /boot is mounted.
213 */
214char *g_boot_mountpt = NULL;
215
216/**
217 * The location of Mondo's home directory.
218 */
219char *g_mondo_home = NULL;
220
221/**
222 * The serial string (used to differentiate between backups) of the current backup.
223 */
224char *g_serial_string = NULL;
225
226/**
227 * The location where tmpfs is mounted, or "" if it's not mounted.
228 */
229char *g_tmpfs_mountpt = NULL;
230char *g_magicdev_command = NULL;
231
232/**
233 * The default maximum level to log messages at or below.
234 */
235int g_loglevel = DEFAULT_DEBUG_LEVEL;
236
237/* @} - end of globalGroup */
238
239
240extern pid_t g_buffer_pid;
241extern pid_t g_main_pid;
242
243extern t_bkptype g_backup_media_type;
244
245extern bool am_I_in_disaster_recovery_mode(void);
246
247
248/**
249 * @addtogroup utilityGroup
250 * @{
251 */
252/**
253 * Assertion handler. Prints a friendly message to the user,
254 * offering to ignore all, dump core, break to debugger,
255 * exit, or ignore. Intended to be used with an assert() macro.
256 *
257 * @param file The file in which the assertion triggered.
258 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
259 * @param line The line number of the assert() statement.
260 * @param exp The expression that failed (as a string).
261 */
262void _mondo_assert_fail(const char *file,
263 const char *function, int line, const char *exp)
264{
265 static int ignoring_assertions = 0;
266 bool is_valid = TRUE;
267
268 log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
269 function);
270 if (ignoring_assertions) {
271 log_it("Well, the user doesn't care...");
272 return;
273 }
274#ifndef _XWIN
275 if (!g_text_mode)
276 newtSuspend();
277#endif
278 printf("ASSERTION FAILED: `%s'\n", exp);
279 printf("\tat %s:%d in %s\n\n", file, line, function);
280 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
281 do {
282 is_valid = TRUE;
283 switch (toupper(getchar())) {
284 case 'A': // ignore (A)ll
285 ignoring_assertions = 1;
286 break;
287 case 'B': // a(B)ort
288 signal(SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
289 raise(SIGABRT);
290 break; /* "can't get here" */
291 case 'D': // (D)ebug, aka asm("int 3")
292#ifdef __IA32__
293 __asm__ __volatile__("int $3"); // break to debugger
294#endif
295 break;
296 case 'E': // (E)xit
297 fatal_error("Failed assertion -- see above for details");
298 break; /* "can't get here" */
299 case 'I': // (I)gnore
300 break;
301 /* These next two work as follows:
302 the `default' catches the user's invalid choice and says so;
303 the '\n' catches the newline on the end and prints the prompt again.
304 */
305 case '\n':
306 printf
307 ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
308 break;
309 default:
310 is_valid = FALSE;
311 printf("Invalid choice.\n");
312 break;
313 }
314 } while (!is_valid);
315
316 if (ignoring_assertions) {
317 log_it("Ignoring ALL assertions from now on.");
318 } else {
319 log_it("Ignoring assertion: %s", exp);
320 }
321
322 getchar(); // skip \n
323
324#ifndef _XWIN
325 if (!g_text_mode)
326 newtResume();
327#endif
328}
329
330/**
331 * Clean's up users' KDE desktops.
332 * @bug Details about this function are unknown.
333 */
334void clean_up_KDE_desktop_if_necessary(void)
335{
336 char *tmp;
337
338 malloc_string(tmp);
339 strcpy(tmp,
340 "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
341file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
342awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
343else { print $0;};}' $file.old > $file ; fi ; done");
344 run_program_and_log_output(tmp, 5);
345 paranoid_free(tmp);
346}
347
348
349/**
350 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
351 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
352 *
353 * @param home_sz String to store the home directory ("" if it could not be found).
354 * @return 0 for success, nonzero for failure.
355 */
356int find_and_store_mondoarchives_home(char *home_sz)
357{
358 assert(home_sz != NULL);
359 strcpy(home_sz, MONDO_SHARE);
360 return (0);
361}
362
363
364char *get_architecture(void) {
365#ifdef __IA32__
366# ifdef __X86_64__
367 return ("x86_64");
368# else
369 return ("i386");
370# endif
371#endif
372#ifdef __IA64__
373 return ("ia64");
374#endif
375 return ("unknown");
376}
377
378
379char *get_uname_m(void) {
380
381 struct utsname utsn;
382 char *tmp = NULL;
383
384 uname(&utsn);
385 asprintf(&tmp, utsn.machine);
386 return (tmp);
387}
388
389
390
391double get_kernel_version(void)
392{
393 char *p, tmp[200];
394 double d;
395#ifdef __FreeBSD__
396 // JOSH - FIXME :)
397 d = 5.2; // :-)
398#else
399 strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
400 p = strchr(tmp, '.');
401 if (p) {
402 p = strchr(++p, '.');
403 if (p) {
404 while (*p) {
405 *p = *(p + 1);
406 p++;
407 }
408 }
409 }
410// log_msg(1, "tmp = '%s'", tmp);
411 d = atof(tmp);
412#endif
413 log_msg(1, "g_kernel_version = %f", d);
414 return (d);
415}
416
417
418
419
420
421/**
422 * Get the current time.
423 * @return number of seconds since the epoch.
424 */
425long get_time()
426{
427 return (long) time((void *) 0);
428}
429
430
431
432
433
434
435
436/**
437 * Initialize a RAID volume structure, setting fields to zero. The
438 * actual hard drive is unaffected.
439 *
440 * @param raidrec The RAID volume structure to initialize.
441 * @note This function is system dependent.
442 */
443#ifdef __FreeBSD__
444void initialize_raidrec(struct vinum_volume *raidrec)
445{
446 int i, j;
447 raidrec->volname[0] = '\0';
448 raidrec->plexes = 0;
449 for (i = 0; i < 9; ++i) {
450 raidrec->plex[i].raidlevel = -1;
451 raidrec->plex[i].stripesize = 0;
452 raidrec->plex[i].subdisks = 0;
453 for (j = 0; j < 9; ++j) {
454 strcpy(raidrec->plex[i].sd[j].which_device, "");
455 }
456 }
457}
458#else
459void initialize_raidrec(struct raid_device_record *raidrec)
460{
461 assert(raidrec != NULL);
462 raidrec->raid_device[0] = '\0';
463 raidrec->raid_level = -9;
464 raidrec->persistent_superblock = 1;
465 raidrec->chunk_size = 64;
466 raidrec->parity = -1;
467 raidrec->data_disks.entries = 0;
468 raidrec->spare_disks.entries = 0;
469 raidrec->parity_disks.entries = 0;
470 raidrec->failed_disks.entries = 0;
471 raidrec->additional_vars.entries = 0;
472}
473#endif
474
475
476
477
478/**
479 * Insert modules that Mondo requires.
480 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
481 * @c msdosfs and @c ext2fs for FreeBSD.
482 */
483void insmod_crucial_modules(void)
484{
485#ifdef __FreeBSD__
486 system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
487 system("kldstat | grep ext2fs || kldload ext2fs 2> /dev/null");
488#else
489 system("modprobe -a msdos vfat loop &> /dev/null");
490#endif
491}
492
493
494/**
495 * Log a trace message to the trace file.
496 * @bug This function seems orphaned. Please remove.
497 */
498void log_trace(char *o)
499{
500 /*@ pointers **************************************************** */
501 FILE *fout;
502
503 /*@ buffers ***************************************************** */
504 char output[MAX_STR_LEN];
505
506 /*@ int ****************************************************** */
507 int i;
508
509 /*@ end vars *************************************************** */
510
511 if (o[0] == '\0') {
512 return;
513 }
514 strcpy(output, o);
515 i = (int) strlen(output);
516 if (i <= 0) {
517 return;
518 }
519 if (output[i - 1] < 32) {
520 output[i - 1] = '\0';
521 }
522 if (g_text_mode
523 /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
524 printf("%s\n", output);
525 }
526
527 fout = fopen(MONDO_TRACEFILE, "a");
528 if (fout) {
529 fprintf(fout, "%s\n", output);
530 paranoid_fclose(fout);
531 } else {
532 log_OS_error("Cannot write to tracefile");
533 }
534}
535
536
537
538
539
540/**
541 * Finish configuring the backup information structure. Call this function
542 * to set the parameters that depend on those that can be given on the command
543 * line.
544 *
545 * @param bkpinfo The backup information structure. Fields modified/used:
546 * - Used: @c bkpinfo->backup_data
547 * - Used: @c bkpinfo->backup_media_type
548 * - Used: @c bkpinfo->cdrw_speed
549 * - Used: @c bkpinfo->compression_level
550 * - Used: @c bkpinfo->include_paths
551 * - Used: @c bkpinfo->prefix
552 * - Used: @c bkpinfo->isodir
553 * - Used: @c bkpinfo->manual_cd_tray
554 * - Used: @c bkpinfo->make_cd_use_lilo
555 * - Used: @c bkpinfo->media_device
556 * - Used: @c bkpinfo->nfs_mount
557 * - Used: @c bkpinfo->nonbootable_backup
558 * - Used: @c bkpinfo->scratchdir
559 * - Used: @c bkpinfo->tmpdir
560 * - Used: @c bkpinfo->use_lzo
561 * - Modified: @c bkpinfo->call_before_iso
562 * - Modified: @c bkpinfo->call_make_iso
563 * - Modified: @c bkpinfo->optimal_set_size
564 * - Modified: @c bkpinfo->zip_exe
565 * - Modified: @c bkpinfo->zip_suffix
566 *
567 * @return number of errors, or 0 for success.
568 * @note Also creates directories that are specified in the @c bkpinfo structure but
569 * do not exist.
570 */
571int post_param_configuration()
572{
573 char *extra_cdrom_params;
574 char *mondo_mkisofs_sz;
575 char *command;
576 char *mtpt;
577 char *hostname, *ip_address;
578 int retval = 0;
579 long avm = 0;
580 char *colon;
581 char *cdr_exe;
582 char *tmp;
583 char call_before_iso_user[MAX_STR_LEN] = "\0";
584 int rdsiz_MB;
585 char *iso_dev;
586 char *iso_mnt;
587 char *iso_tmp;
588 char *iso_path;
589
590 assert(bkpinfo != NULL);
591 malloc_string(extra_cdrom_params);
592 malloc_string(mondo_mkisofs_sz);
593 malloc_string(command);
594 malloc_string(mtpt);
595 malloc_string(hostname);
596 malloc_string(ip_address);
597 malloc_string(cdr_exe);
598 malloc_string(tmp);
599 malloc_string(iso_dev);
600 malloc_string(iso_mnt);
601 malloc_string(iso_tmp);
602 malloc_string(iso_path);
603 bkpinfo->optimal_set_size =
604 (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
605 1024;
606
607 log_msg(1, "Foo");
608 if (bkpinfo->backup_media_type == tape) {
609 log_msg(1, "Bar");
610 sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
611 log_msg(1, "tmp = '%s'", tmp);
612 if (run_program_and_log_output(tmp, 3)) {
613 fatal_error
614 ("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.");
615 }
616 }
617 make_hole_for_dir(bkpinfo->scratchdir);
618 make_hole_for_dir(bkpinfo->tmpdir);
619 if (bkpinfo->backup_media_type == iso)
620 make_hole_for_dir(bkpinfo->isodir);
621
622 run_program_and_log_output("uname -a", 5);
623 run_program_and_log_output("cat /etc/*-release", 5);
624 run_program_and_log_output("cat /etc/*issue*", 5);
625 sprintf(g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
626 sprintf(command, "mkdir -p %s", g_tmpfs_mountpt);
627 paranoid_system(command);
628 rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
629#ifdef __FreeBSD__
630 strcpy(tmp,
631 call_program_and_get_last_line_of_output
632 ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
633 avm += atol(tmp);
634 strcpy(tmp,
635 call_program_and_get_last_line_of_output
636 ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
637 avm += atol(tmp);
638 sprintf(command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
639 g_tmpfs_mountpt);
640#else
641 strcpy(tmp,
642 call_program_and_get_last_line_of_output
643 ("free | grep ':' | tr -s ' ' '\t' | cut -f2 | head -n1"));
644 avm += atol(tmp);
645 sprintf(command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
646 g_tmpfs_mountpt, rdsiz_MB, 'm');
647 run_program_and_log_output("cat /proc/cpuinfo", 5);
648 run_program_and_log_output
649 ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
650 5);
651#endif
652 if (avm / 1024 > rdsiz_MB * 3) {
653 if (run_program_and_log_output(command, 5)) {
654 g_tmpfs_mountpt[0] = '\0';
655 log_it("Failed to mount tmpfs");
656 } else {
657 log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
658 }
659 } else {
660 g_tmpfs_mountpt[0] = '\0';
661 log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
662 }
663
664 if (bkpinfo->use_lzo) {
665 strcpy(bkpinfo->zip_exe, "lzop");
666 strcpy(bkpinfo->zip_suffix, "lzo");
667 } else if (bkpinfo->use_gzip) {
668 strcpy(bkpinfo->zip_exe, "gzip");
669 strcpy(bkpinfo->zip_suffix, "gz");
670 } else if (bkpinfo->compression_level != 0) {
671 strcpy(bkpinfo->zip_exe, "bzip2");
672 strcpy(bkpinfo->zip_suffix, "bz2");
673 } else {
674 bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
675 }
676
677// DVD
678
679 if (bkpinfo->backup_media_type == dvd) {
680 extra_cdrom_params[0] = '\0';
681 mondo_mkisofs_sz[0] = '\0';
682 if (find_home_of_exe("growisofs")) {
683 strcpy(cdr_exe, "growisofs");
684 } // unlikely to be used
685 else {
686 fatal_error("Please install growisofs.");
687 }
688 if (bkpinfo->nonbootable_backup) {
689 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
690 } else if
691#ifdef __FreeBSD__
692 (TRUE)
693#else
694 (bkpinfo->make_cd_use_lilo)
695#endif
696#ifdef __IA64__
697 {
698 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
699 }
700#else
701 {
702 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
703 }
704#endif
705 else
706 {
707 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
708 }
709 if (bkpinfo->manual_cd_tray) {
710 fatal_error("Manual CD tray + DVD not supported yet.");
711 // -m isn't supported by growisofs, BTW...
712 } else {
713 sprintf(bkpinfo->call_make_iso,
714 "%s %s -Z %s . 2>> _ERR_",
715 mondo_mkisofs_sz,
716 extra_cdrom_params, bkpinfo->media_device);
717 }
718 if (getenv ("SUDO_COMMAND")) {
719 sprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
720 if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
721 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
722 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
723 }
724 }
725 log_msg(2, "call_make_iso (DVD res) is ... %s",
726 bkpinfo->call_make_iso);
727 } // end of DVD code
728
729// CD-R or CD-RW
730 if (bkpinfo->backup_media_type == cdrw
731 || bkpinfo->backup_media_type == cdr) {
732 extra_cdrom_params[0] = '\0';
733 if (!bkpinfo->manual_cd_tray) {
734 strcat(extra_cdrom_params, "-waiti ");
735 }
736 if (bkpinfo->backup_media_type == cdrw) {
737 strcat(extra_cdrom_params, "blank=fast ");
738 }
739 if (find_home_of_exe("cdrecord")) {
740 strcpy(cdr_exe, "cdrecord");
741 } else if (find_home_of_exe("dvdrecord")) {
742 strcpy(cdr_exe, "dvdrecord");
743 } else {
744 fatal_error("Please install either cdrecord or dvdrecord.");
745 }
746 if (bkpinfo->nonbootable_backup) {
747 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
748 } else if
749#ifdef __FreeBSD__
750 (TRUE)
751#else
752 (bkpinfo->make_cd_use_lilo)
753#endif
754#ifdef __IA64__
755 {
756 strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
757 }
758#else
759 {
760 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
761 }
762#endif
763 else
764 {
765 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
766 }
767 if (bkpinfo->manual_cd_tray) {
768 if (bkpinfo->call_before_iso[0] == '\0') {
769 sprintf(bkpinfo->call_before_iso,
770 "%s -o %s/temporary.iso . 2>> _ERR_",
771 mondo_mkisofs_sz, bkpinfo->tmpdir);
772 } else {
773 strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
774 sprintf (bkpinfo->call_before_iso,
775 "( %s -o %s/temporary.iso . 2>> _ERR_ ; %s )",
776 mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
777 }
778 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
779 sprintf(bkpinfo->call_make_iso,
780 "%s %s -v %s fs=4m dev=%s speed=%d %s/temporary.iso",
781 cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
782 extra_cdrom_params, bkpinfo->media_device,
783 bkpinfo->cdrw_speed, bkpinfo->tmpdir);
784 } else {
785 sprintf(bkpinfo->call_make_iso,
786 "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
787 mondo_mkisofs_sz, cdr_exe,
788 (bkpinfo->please_dont_eject) ? " " : "-eject",
789 extra_cdrom_params, bkpinfo->media_device,
790 bkpinfo->cdrw_speed);
791 }
792 } // end of CD code
793
794 /*
795 if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
796 {
797 sprintf (tmp,
798 "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
799 bkpinfo->media_device, bkpinfo->internal_tape_block_size);
800 if (system(tmp))
801 {
802 retval++;
803 fprintf (stderr,
804 "Cannot write to tape device. Is the tape set read-only?\n");
805 }
806 } // end of tape code
807 */
808
809
810 if (bkpinfo->backup_media_type == iso) {
811
812/* Patch by Conor Daly <conor.daly@met.ie>
813 * 23-june-2004
814 * Break up isodir into iso_mnt and iso_path
815 * These will be used along with iso-dev at restore time
816 * to locate the ISOs where ever they're mounted
817 */
818
819 log_it("isodir = %s", bkpinfo->isodir);
820 sprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1",
821 bkpinfo->isodir);
822 log_it("command = %s", command);
823 log_it("res of it = %s",
824 call_program_and_get_last_line_of_output(command));
825 sprintf(iso_dev, "%s",
826 call_program_and_get_last_line_of_output(command));
827 sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
828 write_one_liner_data_file(tmp,
829 call_program_and_get_last_line_of_output
830 (command));
831
832 sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
833 iso_dev);
834 log_it("command = %s", command);
835 log_it("res of it = %s",
836 call_program_and_get_last_line_of_output(command));
837 sprintf(iso_mnt, "%s",
838 call_program_and_get_last_line_of_output(command));
839 sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
840 write_one_liner_data_file(tmp,
841 call_program_and_get_last_line_of_output
842 (command));
843 log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
844 sprintf(iso_tmp, "%s", bkpinfo->isodir);
845 if (strlen(iso_tmp) < strlen(iso_mnt)) {
846 iso_path[0] = '\0';
847 } else {
848 sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
849 }
850 sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
851 write_one_liner_data_file(tmp, iso_path);
852 log_it("isodir: %s", iso_path);
853 sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
854 write_one_liner_data_file(tmp, bkpinfo->prefix);
855 log_it("iso-prefix: %s", bkpinfo->prefix);
856
857/* End patch */
858 } // end of iso code
859
860 if (bkpinfo->backup_media_type == nfs) {
861 strcpy(hostname, bkpinfo->nfs_mount);
862 colon = strchr(hostname, ':');
863 if (!colon) {
864 log_it("nfs mount doesn't have a colon in it");
865 retval++;
866 } else {
867 struct hostent *hent;
868
869 *colon = '\0';
870 hent = gethostbyname(hostname);
871 if (!hent) {
872 log_it("Can't resolve NFS mount (%s): %s", hostname,
873 hstrerror(h_errno));
874 retval++;
875 } else {
876 strcpy(ip_address, inet_ntoa
877 ((struct in_addr)
878 *((struct in_addr *) hent->h_addr)));
879 strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
880 strcpy(bkpinfo->nfs_mount, ip_address);
881 }
882 }
883 store_nfs_config();
884 }
885
886 log_it("Finished processing incoming params");
887 if (retval) {
888 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
889 }
890 sprintf(tmp, "%s", MONDO_TMPISOS); /* added #define 22 apr 2002 */
891 if (does_file_exist(tmp)) {
892 unlink(tmp);
893 }
894 if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
895 log_it("tmpdir or scratchdir are blank/missing");
896 retval++;
897 }
898 if (bkpinfo->include_paths[0] == '\0') {
899 // fatal_error ("Why no backup path?");
900 strcpy(bkpinfo->include_paths, "/");
901 }
902 chmod(bkpinfo->scratchdir, 0700);
903 chmod(bkpinfo->tmpdir, 0700);
904 g_backup_media_type = bkpinfo->backup_media_type;
905 paranoid_free(mtpt);
906 paranoid_free(extra_cdrom_params);
907 paranoid_free(mondo_mkisofs_sz);
908 paranoid_free(command);
909 paranoid_free(hostname);
910 paranoid_free(ip_address);
911 paranoid_free(cdr_exe);
912 paranoid_free(tmp);
913 paranoid_free(iso_dev);
914 paranoid_free(iso_mnt);
915 paranoid_free(iso_tmp);
916 paranoid_free(iso_path);
917 return (retval);
918}
919
920
921
922/**
923 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
924 * Seeds the random-number generator, loads important modules, checks the sanity
925 * of the user's Linux distribution, and deletes logfile.
926 * @param bkpinfo The backup information structure. Will be initialized.
927 * @return number of errors (0 for success)
928 */
929int pre_param_configuration()
930{
931 int res = 0;
932 char *tmp = NULL;
933
934 make_hole_for_dir(MNT_CDROM);
935 assert(bkpinfo != NULL);
936 srandom((unsigned long) (time(NULL)));
937 insmod_crucial_modules();
938 if (bkpinfo->disaster_recovery) {
939 if (!does_nonMS_partition_exist()) {
940 fatal_error
941 ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
942 }
943 }
944
945 unlink(MONDO_TRACEFILE);
946 asprintf(&tmp,"rm -Rf %s/changed.files*",bkpinfo->tmpdir);
947 run_program_and_log_output(tmp, FALSE);
948 paranoid_free(tmp);
949 if (find_and_store_mondoarchives_home(g_mondo_home)) {
950 fprintf(stderr,
951 "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");
952 res++;
953 return (res);
954 }
955 res += some_basic_system_sanity_checks();
956 if (res) {
957 log_it("Your distribution did not pass Mondo's sanity test.");
958 }
959 g_current_media_number = 1;
960 bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
961 return (res);
962}
963
964
965
966
967/**
968 * Reset all fields of the backup information structure to a sensible default.
969 * @param bkpinfo The @c bkpinfo to reset.
970 */
971void reset_bkpinfo()
972{
973 int i;
974
975 log_msg(1, "Hi");
976 assert(bkpinfo != NULL);
977 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
978 bkpinfo->manual_cd_tray = FALSE;
979 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
980 bkpinfo->media_device[0] = '\0';
981 for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
982 bkpinfo->media_size[i] = -1;
983 }
984 bkpinfo->boot_loader = '\0';
985 bkpinfo->boot_device[0] = '\0';
986 bkpinfo->zip_exe[0] = '\0';
987 bkpinfo->zip_suffix[0] = '\0';
988 bkpinfo->restore_path[0] = '\0';
989 bkpinfo->use_lzo = FALSE;
990 bkpinfo->use_gzip = FALSE;
991 bkpinfo->do_not_compress_these[0] = '\0';
992 bkpinfo->verify_data = FALSE;
993 bkpinfo->backup_data = FALSE;
994 bkpinfo->restore_data = FALSE;
995 bkpinfo->disaster_recovery =
996 (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
997 if (bkpinfo->disaster_recovery) {
998 strcpy(bkpinfo->isodir, "/");
999 } else {
1000 strcpy(bkpinfo->isodir, "/root/images/mondo");
1001 }
1002 strcpy(bkpinfo->prefix, STD_PREFIX);
1003
1004 bkpinfo->scratchdir[0] = '\0';
1005 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
1006 sprintf(bkpinfo->tmpdir, "%s/tmpfs/mondo.tmp.%d", "/tmp", (int) (random() % 32768)); // for mondorestore
1007 bkpinfo->optimal_set_size = 0;
1008 bkpinfo->backup_media_type = none;
1009 strcpy(bkpinfo->include_paths, "/");
1010 bkpinfo->exclude_paths[0] = '\0';
1011 bkpinfo->call_before_iso[0] = '\0';
1012 bkpinfo->call_make_iso[0] = '\0';
1013 bkpinfo->call_burn_iso[0] = '\0';
1014 bkpinfo->call_after_iso[0] = '\0';
1015 bkpinfo->image_devs[0] = '\0';
1016 bkpinfo->postnuke_tarball[0] = '\0';
1017 bkpinfo->kernel_path[0] = '\0';
1018 bkpinfo->nfs_mount[0] = '\0';
1019 bkpinfo->nfs_remote_dir[0] = '\0';
1020 bkpinfo->wipe_media_first = FALSE;
1021 bkpinfo->differential = FALSE;
1022 bkpinfo->cdrw_speed = 0;
1023// patch by Herman Kuster
1024 bkpinfo->differential = 0;
1025// patch end
1026 bkpinfo->compression_level = 3;
1027}
1028
1029
1030
1031
1032/**
1033 * Get the remaining free space (in MB) on @p partition.
1034 * @param partition The partition to check free space on (either a device or a mountpoint).
1035 * @return The free space on @p partition, in MB.
1036 */
1037long free_space_on_given_partition(char *partition)
1038{
1039 char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
1040 long res;
1041
1042 assert_string_is_neither_NULL_nor_zerolength(partition);
1043
1044 sprintf(command, "df -m -P %s &> /dev/null", partition);
1045 if (system(command)) {
1046 return (-1);
1047 } // partition does not exist
1048 sprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
1049 partition);
1050 strcpy(out_sz, call_program_and_get_last_line_of_output(command));
1051 if (strlen(out_sz) == 0) {
1052 return (-1);
1053 } // error within df, probably
1054 res = atol(out_sz);
1055 return (res);
1056}
1057
1058
1059
1060/**
1061 * Check the user's system for sanity. Checks performed:
1062 * - make sure user has enough RAM (32mb required, 64mb recommended)
1063 * - make sure user has enough free space in @c /
1064 * - check kernel for ramdisk support
1065 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
1066 * - make sure CD-ROM is unmounted
1067 * - make sure /etc/modules.conf exists
1068 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
1069 *
1070 * @return number of problems with the user's setup (0 for success)
1071 */
1072int some_basic_system_sanity_checks()
1073{
1074
1075 /*@ buffers ************ */
1076 char tmp[MAX_STR_LEN];
1077 // char command[MAX_STR_LEN];
1078
1079 /*@ int's *************** */
1080 int retval = 0;
1081 long Lres;
1082
1083
1084 mvaddstr_and_log_it(g_currentY, 0,
1085 "Checking sanity of your Linux distribution");
1086#ifndef __FreeBSD__
1087 if (system("which mkfs.vfat &> /dev/null")
1088 && !system("which mkfs.msdos &> /dev/null")) {
1089 log_it
1090 ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
1091 run_program_and_log_output
1092 ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
1093 }
1094 strcpy(tmp,
1095 call_program_and_get_last_line_of_output
1096 ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
1097 if (atol(tmp) < 35000) {
1098 retval++;
1099 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
1100 }
1101 if (atol(tmp) < 66000) {
1102 log_to_screen
1103 ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
1104 }
1105#endif
1106
1107 Lres = free_space_on_given_partition(MINDI_CACHE);
1108 log_it("Free space on partition of %s = %ld MB", MINDI_CACHE, Lres);
1109
1110 if (Lres < 50) {
1111 sprintf(tmp, "The partition of %s has <50MB free. Please free up space or enlarge the partition or make %s a symbolic link.", MINDI_CACHE, MINDI_CACHE);
1112 fatal_error(tmp);
1113 }
1114
1115 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
1116 retval++;
1117 log_to_screen
1118 ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
1119 fatal_error
1120 ("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. :)");
1121 }
1122#ifndef __FreeBSD__
1123 if (run_program_and_log_output
1124 ("grep ramdisk /proc/devices", FALSE)) {
1125 if (!ask_me_yes_or_no
1126 ("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?"))
1127 {
1128 // retval++;
1129 log_to_screen
1130 ("It looks as if your kernel lacks ramdisk and initrd support.");
1131 log_to_screen
1132 ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
1133 }
1134 }
1135#endif
1136 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
1137 retval += whine_if_not_found("mkisofs");
1138 if (system("which dvdrecord > /dev/null 2> /dev/null")) {
1139 retval += whine_if_not_found("cdrecord");
1140 }
1141 retval += whine_if_not_found("bzip2");
1142 retval += whine_if_not_found("gzip");
1143 retval += whine_if_not_found("awk");
1144 retval += whine_if_not_found("md5sum");
1145 retval += whine_if_not_found("strings");
1146 retval += whine_if_not_found("mindi");
1147 retval += whine_if_not_found("buffer");
1148
1149 // abort if Windows partition but no ms-sys and parted
1150 if (!run_program_and_log_output
1151 ("mount | grep -w vfat | grep -vE \"/dev/fd|nexdisk\"", 0)
1152 ||
1153 !run_program_and_log_output
1154 ("mount | grep -w dos | grep -vE \"/dev/fd|nexdisk\"", 0)) {
1155 log_to_screen("I think you have a Windows 9x partition.");
1156 retval += whine_if_not_found("parted");
1157#ifndef __IA64__
1158 /* IA64 always has one vfat partition for EFI even without Windows */
1159 // retval +=
1160 if (!find_home_of_exe("ms-sys")) {
1161 log_to_screen("Please install ms-sys just in case.");
1162 }
1163#endif
1164 }
1165
1166 if (!find_home_of_exe("cmp")) {
1167 if (!find_home_of_exe("true")) {
1168 whine_if_not_found("cmp");
1169 } else {
1170 log_to_screen
1171 ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1172 if (run_program_and_log_output
1173 ("cp -f `which true` /usr/bin/cmp", 0)) {
1174 fatal_error("Failed to create dummy 'cmp' file.");
1175 }
1176 }
1177 }
1178 run_program_and_log_output
1179 ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1180 strcpy(tmp,
1181 call_program_and_get_last_line_of_output
1182 ("mount | grep -E \"cdr(om|w)\""));
1183 if (strcmp("", tmp)) {
1184 if (strstr(tmp, "autofs")) {
1185 log_to_screen
1186 ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1187 log_to_screen
1188 ("if a CD actually is inserted. If a CD is inserted, please");
1189 log_to_screen("eject it. Thank you.");
1190 log_it
1191 ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1192 } else
1193 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1194 retval++;
1195 fatal_error
1196 ("Your CD-ROM drive is mounted. Please unmount it.");
1197 }
1198 }
1199#ifndef __FreeBSD__
1200 if (!does_file_exist("/etc/modules.conf")) {
1201 if (does_file_exist("/etc/conf.modules")) {
1202 log_it("Linking /etc/modules.conf to /etc/conf.modules");
1203 run_program_and_log_output
1204 ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
1205 } else if (does_file_exist("/etc/modprobe.d")) {
1206 log_it
1207 ("Directory /etc/modprobe.d found. mindi will use its contents.");
1208 } else if (does_file_exist("/etc/modprobe.conf")) {
1209 log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
1210 run_program_and_log_output
1211 ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
1212 } else {
1213 retval++;
1214 log_to_screen
1215 ("Please find out what happened to /etc/modules.conf");
1216 }
1217 }
1218#endif
1219
1220 run_program_and_log_output("cat /etc/fstab", 5);
1221#ifdef __FreeBSD__
1222 run_program_and_log_output("vinum printconfig", 5);
1223#else
1224 run_program_and_log_output("cat /etc/raidtab", 5);
1225#endif
1226
1227 if (run_program_and_log_output("mindi -V", 1)) {
1228 log_to_screen("Could not ascertain mindi's version number.");
1229 log_to_screen
1230 ("You have not installed Mondo and/or Mindi properly.");
1231 log_to_screen("Please uninstall and reinstall them both.");
1232 fatal_error("Please reinstall Mondo and Mindi.");
1233 }
1234 sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1235 if (run_program_and_log_output(tmp, 5)) {
1236 sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1237 log_to_screen(tmp);
1238 log_to_screen
1239 ("Please run that command by hand and examine /var/log/mindi.log");
1240 log_to_screen
1241 ("for more information. Perhaps your /etc/fstab file is insane.");
1242 log_to_screen
1243 ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1244 retval++;
1245 }
1246
1247 if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1248 && !does_file_exist("/etc/raidtab")) {
1249 log_to_screen
1250 ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1251 create_raidtab_from_mdstat("/etc/raidtab");
1252 }
1253
1254 if (retval) {
1255 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1256 } else {
1257 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1258 }
1259 return (retval);
1260}
1261
1262/**
1263 * Retrieve the line containing @p label from the config file.
1264 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1265 * @param label What to read from the file.
1266 * @param value Where to put it.
1267 * @return 0 for success, 1 for failure.
1268 */
1269int read_cfg_var(char *config_file, char *label, char *value)
1270{
1271 /*@ buffer ****************************************************** */
1272 char command[MAX_STR_LEN * 2];
1273 char tmp[MAX_STR_LEN];
1274
1275 /*@ end vars *************************************************** */
1276
1277 assert_string_is_neither_NULL_nor_zerolength(config_file);
1278 assert_string_is_neither_NULL_nor_zerolength(label);
1279 if (!does_file_exist(config_file)) {
1280 sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1281 config_file);
1282 log_to_screen(tmp);
1283 value[0] = '\0';
1284 return (1);
1285 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1286 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1287 return (0);
1288 } else {
1289 sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1290 label, config_file);
1291 strcpy(value, call_program_and_get_last_line_of_output(command));
1292 if (strlen(value) == 0) {
1293 return (1);
1294 } else {
1295 return (0);
1296 }
1297 }
1298}
1299
1300
1301
1302/**
1303 * Remount @c supermount if it was unmounted earlier.
1304 */
1305void remount_supermounts_if_necessary()
1306{
1307 if (g_remount_cdrom_at_end) {
1308 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1309 }
1310 if (g_remount_floppy_at_end) {
1311 run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1312 }
1313}
1314
1315/**
1316 * Unmount @c supermount if it's mounted.
1317 */
1318void unmount_supermounts_if_necessary()
1319{
1320 if (run_program_and_log_output
1321 ("mount | grep cdrom | grep super", FALSE) == 0) {
1322 g_remount_cdrom_at_end = TRUE;
1323 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1324 }
1325 if (run_program_and_log_output
1326 ("mount | grep floppy | grep super", FALSE) == 0) {
1327 g_remount_floppy_at_end = TRUE;
1328 run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1329 }
1330}
1331
1332/**
1333 * Whether we had to stop autofs (if so, restart it at end).
1334 */
1335bool g_autofs_stopped = FALSE;
1336
1337/**
1338 * Path to the autofs initscript ("" if none exists).
1339 */
1340char g_autofs_exe[MAX_STR_LEN];
1341
1342/**
1343 * Autofs initscript in Xandros Linux distribution.
1344 */
1345#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1346
1347/**
1348 * Autofs initscript in most Linux distributions.
1349 */
1350#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1351
1352/**
1353 * If autofs is mounted, stop it (restart at end).
1354 */
1355void stop_autofs_if_necessary()
1356{
1357 char tmp[MAX_STR_LEN];
1358
1359 g_autofs_exe[0] = '\0';
1360 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1361 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1362 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1363 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1364 }
1365
1366 if (!g_autofs_exe[0]) {
1367 log_msg(3, "No autofs detected.");
1368 } else {
1369 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1370// FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1371 sprintf(tmp, "%s stop", g_autofs_exe);
1372 if (run_program_and_log_output(tmp, 2)) {
1373 log_it("Failed to stop autofs - I assume it wasn't running");
1374 } else {
1375 g_autofs_stopped = TRUE;
1376 log_it("Stopped autofs OK");
1377 }
1378 }
1379}
1380
1381/**
1382 * If autofs was stopped earlier, restart it.
1383 */
1384void restart_autofs_if_necessary()
1385{
1386 char tmp[MAX_STR_LEN];
1387
1388 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1389 log_msg(3, "No autofs detected.");
1390 return;
1391 }
1392 sprintf(tmp, "%s start", g_autofs_exe);
1393 if (run_program_and_log_output(tmp, 2)) {
1394 log_it("Failed to start autofs");
1395 } else {
1396 g_autofs_stopped = FALSE;
1397 log_it("Started autofs OK");
1398 }
1399}
1400
1401
1402/**
1403 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1404 */
1405void mount_boot_if_necessary()
1406{
1407 char tmp[MAX_STR_LEN];
1408 char command[MAX_STR_LEN];
1409
1410 log_msg(1, "Started sub");
1411 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1412 g_boot_mountpt[0] = '\0';
1413 log_msg(4, "Done. Great. Seeting command to something");
1414 strcpy(command,
1415 "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1416 log_msg(4, "Cool. Command = '%s'", command);
1417 strcpy(tmp, call_program_and_get_last_line_of_output(command));
1418 log_msg(4, "tmp = '%s'", tmp);
1419 if (tmp[0]) {
1420 log_it("/boot is at %s according to /etc/fstab", tmp);
1421 if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1422 if (!run_program_and_log_output("mount /boot", 5)) {
1423 strcpy(g_boot_mountpt, "/boot");
1424 log_msg(1, "Mounted /boot");
1425 } else {
1426 log_it("...ignored cos it's a label or uuid :-)");
1427 }
1428 } else {
1429 sprintf(command, "mount | grep -E '^%s'", tmp);
1430 log_msg(3, "command = %s", command);
1431 if (run_program_and_log_output(command, 5)) {
1432 strcpy(g_boot_mountpt, tmp);
1433 sprintf(tmp,
1434 "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1435 g_boot_mountpt);
1436 log_it(tmp);
1437 sprintf(tmp, "mount %s", g_boot_mountpt);
1438 if (run_program_and_log_output(tmp, 5)) {
1439 g_boot_mountpt[0] = '\0';
1440 log_msg(1, "Plan B");
1441 if (!run_program_and_log_output("mount /boot", 5)) {
1442 strcpy(g_boot_mountpt, "/boot");
1443 log_msg(1, "Plan B worked");
1444 } else {
1445 log_msg(1,
1446 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1447 }
1448 }
1449 }
1450 }
1451 }
1452 log_msg(1, "Ended sub");
1453}
1454
1455
1456/**
1457 * If we mounted /boot earlier, unmount it.
1458 */
1459void unmount_boot_if_necessary()
1460{
1461 char tmp[MAX_STR_LEN];
1462
1463 log_msg(3, "starting");
1464 if (g_boot_mountpt[0]) {
1465 sprintf(tmp, "umount %s", g_boot_mountpt);
1466 if (run_program_and_log_output(tmp, 5)) {
1467 log_it("WARNING - unable to unmount /boot");
1468 }
1469 }
1470 log_msg(3, "leaving");
1471}
1472
1473
1474
1475/**
1476 * Write a line to a configuration file. Writes a line of the form,
1477 * @c label @c value.
1478 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1479 * @param label What to call this bit of data you're writing.
1480 * @param value The bit of data you're writing.
1481 * @return 0 for success, 1 for failure.
1482 */
1483int write_cfg_var(char *config_file, char *label, char *value)
1484{
1485 /*@ buffers ***************************************************** */
1486 char command[MAX_STR_LEN * 2];
1487 char tempfile[MAX_STR_LEN];
1488 char tmp[MAX_STR_LEN];
1489
1490
1491 /*@ end vars *************************************************** */
1492 assert_string_is_neither_NULL_nor_zerolength(config_file);
1493 assert_string_is_neither_NULL_nor_zerolength(label);
1494 assert(value != NULL);
1495 if (!does_file_exist(config_file)) {
1496 sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1497 config_file);
1498 log_to_screen(tmp);
1499 return (1);
1500 }
1501 sprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1502 if (does_file_exist(config_file)) {
1503 sprintf(command, "grep -vE '^%s .*$' %s > %s",
1504 label, config_file, tempfile);
1505 paranoid_system(command);
1506 }
1507 sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1508 paranoid_system(command);
1509 sprintf(command, "mv -f %s %s", tempfile, config_file);
1510 paranoid_system(command);
1511 unlink(tempfile);
1512 return (0);
1513}
1514
1515
1516/**
1517 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1518 * information to the logfile.
1519 */
1520void standard_log_debug_msg(int debug_level, const char *szFile,
1521 const char *szFunction, int nLine,
1522 const char *fmt, ...)
1523{
1524 va_list args;
1525 int i;
1526 static int depth = 0;
1527 char *tmp;
1528 FILE *fout;
1529
1530 if (depth > 5) {
1531 depth--;
1532 return;
1533 }
1534 depth++;
1535
1536 malloc_string(tmp);
1537
1538 if (debug_level <= g_loglevel) {
1539 va_start(args, fmt);
1540 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1541 return;
1542 } // fatal_error("Failed to openout to logfile - sheesh..."); }
1543
1544 // add tabs to distinguish log levels
1545 if (debug_level > 0) {
1546 for (i = 1; i < debug_level; i++)
1547 fprintf(fout, "\t");
1548 if (getpid() == g_main_pid)
1549 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1550 nLine);
1551 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1552 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1553 nLine);
1554 else
1555 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1556 szFunction, nLine);
1557 }
1558 vfprintf(fout, fmt, args);
1559
1560 // do not slow down the progran if standard debug level
1561 // must be enabled: if no flush, the log won't be up-to-date if there
1562 // is a segfault
1563 //if (g_dwDebugLevel != 1)
1564
1565 va_end(args);
1566 fprintf(fout, "\n");
1567 paranoid_fclose(fout);
1568 }
1569 depth--;
1570 paranoid_free(tmp);
1571}
1572
1573/**
1574 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1575 */
1576void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1577 ...) = standard_log_debug_msg;
1578
1579
1580/**
1581 * If @p y, malloc @p x, else free @p x.
1582 * @bug This function seems orphaned. Please remove.
1583 */
1584#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1585
1586/**
1587 * Allocate or free important globals, depending on @p mal.
1588 * @param mal If TRUE, malloc; if FALSE, free.
1589 */
1590void do_libmondo_global_strings_thing(int mal)
1591{
1592 if (mal) {
1593 iamhere("Malloc'ing globals");
1594 malloc_string(g_boot_mountpt);
1595 malloc_string(g_mondo_home);
1596 malloc_string(g_tmpfs_mountpt);
1597 malloc_string(g_erase_tmpdir_and_scratchdir);
1598 malloc_string(g_serial_string);
1599 malloc_string(g_magicdev_command);
1600 } else {
1601 iamhere("Freeing globals");
1602 paranoid_free(g_boot_mountpt);
1603 paranoid_free(g_mondo_home);
1604 paranoid_free(g_tmpfs_mountpt);
1605 paranoid_free(g_erase_tmpdir_and_scratchdir);
1606 paranoid_free(g_serial_string);
1607 paranoid_free(g_magicdev_command);
1608 }
1609
1610 /*
1611 char**list_of_arrays[] = {
1612 &g_boot_mountpt,
1613 &g_mondo_home,
1614 &g_tmpfs_mountpt,
1615 &g_erase_tmpdir_and_scratchdir,
1616 &g_serial_string,
1617 &g_magicdev_command,
1618 NULL};
1619
1620 char**ppcurr;
1621 int i;
1622
1623 for(i=0;list_of_arrays[i];i++)
1624 {
1625 log_msg(5, "Allocating %d", i);
1626 ppcurr = list_of_arrays[i];
1627 if (mal)
1628 { *ppcurr = malloc(MAX_STR_LEN); }
1629 else
1630 {
1631 if (*ppcurr)
1632 {
1633 free(*ppcurr);
1634 }
1635 }
1636 }
1637 log_msg(5, "Returning");
1638 */
1639}
1640
1641/**
1642 * Allocate important globals.
1643 * @see do_libmondo_global_strings_thing
1644 */
1645void malloc_libmondo_global_strings(void)
1646{
1647 do_libmondo_global_strings_thing(1);
1648}
1649
1650/**
1651 * Free important globals.
1652 * @see do_libmondo_global_strings_thing
1653 */
1654void free_libmondo_global_strings(void)
1655{
1656 do_libmondo_global_strings_thing(0);
1657}
1658
1659
1660
1661/**
1662 * Stop @c magicdev if it's running.
1663 * The command used to start it is saved in @p g_magicdev_command.
1664 */
1665void stop_magicdev_if_necessary()
1666{
1667 strcpy(g_magicdev_command,
1668 call_program_and_get_last_line_of_output
1669 ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1670 if (g_magicdev_command[0]) {
1671 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1672 paranoid_system("killall magicdev");
1673 }
1674}
1675
1676
1677/**
1678 * Restart magicdev if it was stopped.
1679 */
1680void restart_magicdev_if_necessary()
1681{
1682 char *tmp;
1683
1684 malloc_string(tmp);
1685 if (g_magicdev_command && g_magicdev_command[0]) {
1686 sprintf(tmp, "%s &", g_magicdev_command);
1687 paranoid_system(tmp);
1688 }
1689 paranoid_free(tmp);
1690}
1691
1692/* @} - end of utilityGroup */
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