source: MondoRescue/branches/2.2.5/mondo/src/common/libmondo-tools.c@ 1656

Last change on this file since 1656 was 1656, checked in by Bruno Cornec, 17 years ago

Fixes missing extern function declaation for setup_tmpdir
  • Property svn:keywords set to Id
File size: 45.8 KB
Line 
1/* libmondo-tools.c misc tools
2 $Id: libmondo-tools.c 1656 2007-09-24 23:12:19Z 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 <stdlib.h>
185#include <netinet/in.h>
186#include <arpa/inet.h>
187#include <sys/utsname.h>
188
189/*@unused@*/
190//static char cvsid[] = "$Id: libmondo-tools.c 1656 2007-09-24 23:12:19Z bruno $";
191
192extern int g_tape_buffer_size_MB;
193extern char *g_erase_tmpdir_and_scratchdir;
194extern char *g_serial_string;
195extern bool g_text_mode;
196extern int g_currentY;
197extern int g_current_media_number;
198extern char *MONDO_LOGFILE;
199
200/* Reference to global bkpinfo */
201extern struct s_bkpinfo *bkpinfo;
202
203/**
204 * @addtogroup globalGroup
205 * @{
206 */
207bool g_remount_cdrom_at_end, ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
208 g_remount_floppy_at_end; ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
209bool g_cd_recovery; ///< TRUE if we're making an "autonuke" backup.
210double g_kernel_version;
211
212/**
213 * The place where /boot is mounted.
214 */
215char *g_boot_mountpt = NULL;
216
217/**
218 * The location of Mondo's home directory.
219 */
220char *g_mondo_home = NULL;
221
222/**
223 * The serial string (used to differentiate between backups) of the current backup.
224 */
225char *g_serial_string = NULL;
226
227/**
228 * The location where tmpfs is mounted, or "" if it's not mounted.
229 */
230char *g_tmpfs_mountpt = NULL;
231char *g_magicdev_command = NULL;
232
233/**
234 * The default maximum level to log messages at or below.
235 */
236int g_loglevel = DEFAULT_DEBUG_LEVEL;
237
238/* @} - end of globalGroup */
239
240
241extern pid_t g_buffer_pid;
242extern pid_t g_main_pid;
243
244extern t_bkptype g_backup_media_type;
245
246extern bool am_I_in_disaster_recovery_mode(void);
247
248
249/**
250 * @addtogroup utilityGroup
251 * @{
252 */
253/**
254 * Assertion handler. Prints a friendly message to the user,
255 * offering to ignore all, dump core, break to debugger,
256 * exit, or ignore. Intended to be used with an assert() macro.
257 *
258 * @param file The file in which the assertion triggered.
259 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
260 * @param line The line number of the assert() statement.
261 * @param exp The expression that failed (as a string).
262 */
263void _mondo_assert_fail(const char *file,
264 const char *function, int line, const char *exp)
265{
266 static int ignoring_assertions = 0;
267 bool is_valid = TRUE;
268
269 log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
270 function);
271 if (ignoring_assertions) {
272 log_it("Well, the user doesn't care...");
273 return;
274 }
275#ifndef _XWIN
276 if (!g_text_mode)
277 newtSuspend();
278#endif
279 printf("ASSERTION FAILED: `%s'\n", exp);
280 printf("\tat %s:%d in %s\n\n", file, line, function);
281 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
282 do {
283 is_valid = TRUE;
284 switch (toupper(getchar())) {
285 case 'A': // ignore (A)ll
286 ignoring_assertions = 1;
287 break;
288 case 'B': // a(B)ort
289 signal(SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
290 raise(SIGABRT);
291 break; /* "can't get here" */
292 case 'D': // (D)ebug, aka asm("int 3")
293#ifdef __IA32__
294 __asm__ __volatile__("int $3"); // break to debugger
295#endif
296 break;
297 case 'E': // (E)xit
298 fatal_error("Failed assertion -- see above for details");
299 break; /* "can't get here" */
300 case 'I': // (I)gnore
301 break;
302 /* These next two work as follows:
303 the `default' catches the user's invalid choice and says so;
304 the '\n' catches the newline on the end and prints the prompt again.
305 */
306 case '\n':
307 printf
308 ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
309 break;
310 default:
311 is_valid = FALSE;
312 printf("Invalid choice.\n");
313 break;
314 }
315 } while (!is_valid);
316
317 if (ignoring_assertions) {
318 log_it("Ignoring ALL assertions from now on.");
319 } else {
320 log_it("Ignoring assertion: %s", exp);
321 }
322
323 getchar(); // skip \n
324
325#ifndef _XWIN
326 if (!g_text_mode)
327 newtResume();
328#endif
329}
330
331/**
332 * Clean's up users' KDE desktops.
333 * @bug Details about this function are unknown.
334 */
335void clean_up_KDE_desktop_if_necessary(void)
336{
337 char *tmp;
338
339 malloc_string(tmp);
340 strcpy(tmp,
341 "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
342file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
343awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
344else { print $0;};}' $file.old > $file ; fi ; done");
345 run_program_and_log_output(tmp, 5);
346 paranoid_free(tmp);
347}
348
349
350/**
351 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
352 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
353 *
354 * @param home_sz String to store the home directory ("" if it could not be found).
355 * @return 0 for success, nonzero for failure.
356 */
357int find_and_store_mondoarchives_home(char *home_sz)
358{
359 assert(home_sz != NULL);
360 strcpy(home_sz, MONDO_SHARE);
361 return (0);
362}
363
364
365char *get_architecture(void) {
366#ifdef __IA32__
367# ifdef __X86_64__
368 return ("x86_64");
369# else
370 return ("i386");
371# endif
372#endif
373#ifdef __IA64__
374 return ("ia64");
375#endif
376 return ("unknown");
377}
378
379
380char *get_uname_m(void) {
381
382 struct utsname utsn;
383 char *tmp = NULL;
384
385 uname(&utsn);
386 asprintf(&tmp, utsn.machine);
387 return (tmp);
388}
389
390
391
392double get_kernel_version(void)
393{
394 char *p, tmp[200];
395 double d;
396#ifdef __FreeBSD__
397 // JOSH - FIXME :)
398 d = 5.2; // :-)
399#else
400 strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
401 p = strchr(tmp, '.');
402 if (p) {
403 p = strchr(++p, '.');
404 if (p) {
405 while (*p) {
406 *p = *(p + 1);
407 p++;
408 }
409 }
410 }
411// log_msg(1, "tmp = '%s'", tmp);
412 d = atof(tmp);
413#endif
414 log_msg(1, "g_kernel_version = %f", d);
415 return (d);
416}
417
418
419
420
421
422/**
423 * Get the current time.
424 * @return number of seconds since the epoch.
425 */
426long get_time()
427{
428 return (long) time((void *) 0);
429}
430
431
432
433
434
435
436
437/**
438 * Initialize a RAID volume structure, setting fields to zero. The
439 * actual hard drive is unaffected.
440 *
441 * @param raidrec The RAID volume structure to initialize.
442 * @note This function is system dependent.
443 */
444#ifdef __FreeBSD__
445void initialize_raidrec(struct vinum_volume *raidrec)
446{
447 int i, j;
448 raidrec->volname[0] = '\0';
449 raidrec->plexes = 0;
450 for (i = 0; i < 9; ++i) {
451 raidrec->plex[i].raidlevel = -1;
452 raidrec->plex[i].stripesize = 0;
453 raidrec->plex[i].subdisks = 0;
454 for (j = 0; j < 9; ++j) {
455 strcpy(raidrec->plex[i].sd[j].which_device, "");
456 }
457 }
458}
459#else
460void initialize_raidrec(struct raid_device_record *raidrec)
461{
462 assert(raidrec != NULL);
463 raidrec->raid_device[0] = '\0';
464 raidrec->raid_level = -9;
465 raidrec->persistent_superblock = 1;
466 raidrec->chunk_size = 64;
467 raidrec->parity = -1;
468 raidrec->data_disks.entries = 0;
469 raidrec->spare_disks.entries = 0;
470 raidrec->parity_disks.entries = 0;
471 raidrec->failed_disks.entries = 0;
472 raidrec->additional_vars.entries = 0;
473}
474#endif
475
476
477
478
479/**
480 * Insert modules that Mondo requires.
481 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
482 * @c msdosfs and @c ext2fs for FreeBSD.
483 */
484void insmod_crucial_modules(void)
485{
486#ifdef __FreeBSD__
487 system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
488 system("kldstat | grep ext2fs || kldload ext2fs 2> /dev/null");
489#else
490 system("modprobe -a msdos vfat loop &> /dev/null");
491#endif
492}
493
494
495/**
496 * Log a trace message to the trace file.
497 * @bug This function seems orphaned. Please remove.
498 */
499void log_trace(char *o)
500{
501 /*@ pointers **************************************************** */
502 FILE *fout;
503
504 /*@ buffers ***************************************************** */
505 char output[MAX_STR_LEN];
506
507 /*@ int ****************************************************** */
508 int i;
509
510 /*@ end vars *************************************************** */
511
512 if (o[0] == '\0') {
513 return;
514 }
515 strcpy(output, o);
516 i = (int) strlen(output);
517 if (i <= 0) {
518 return;
519 }
520 if (output[i - 1] < 32) {
521 output[i - 1] = '\0';
522 }
523 if (g_text_mode
524 /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
525 printf("%s\n", output);
526 }
527
528 fout = fopen(MONDO_TRACEFILE, "a");
529 if (fout) {
530 fprintf(fout, "%s\n", output);
531 paranoid_fclose(fout);
532 } else {
533 log_OS_error("Cannot write to tracefile");
534 }
535}
536
537
538
539
540
541/**
542 * Finish configuring the backup information structure. Call this function
543 * to set the parameters that depend on those that can be given on the command
544 * line.
545 *
546 * @param bkpinfo The backup information structure. Fields modified/used:
547 * - Used: @c bkpinfo->backup_data
548 * - Used: @c bkpinfo->backup_media_type
549 * - Used: @c bkpinfo->cdrw_speed
550 * - Used: @c bkpinfo->compression_level
551 * - Used: @c bkpinfo->include_paths
552 * - Used: @c bkpinfo->prefix
553 * - Used: @c bkpinfo->isodir
554 * - Used: @c bkpinfo->manual_cd_tray
555 * - Used: @c bkpinfo->make_cd_use_lilo
556 * - Used: @c bkpinfo->media_device
557 * - Used: @c bkpinfo->nfs_mount
558 * - Used: @c bkpinfo->nonbootable_backup
559 * - Used: @c bkpinfo->scratchdir
560 * - Used: @c bkpinfo->tmpdir
561 * - Used: @c bkpinfo->use_lzo
562 * - Modified: @c bkpinfo->call_before_iso
563 * - Modified: @c bkpinfo->call_make_iso
564 * - Modified: @c bkpinfo->optimal_set_size
565 * - Modified: @c bkpinfo->zip_exe
566 * - Modified: @c bkpinfo->zip_suffix
567 *
568 * @return number of errors, or 0 for success.
569 * @note Also creates directories that are specified in the @c bkpinfo structure but
570 * do not exist.
571 */
572int post_param_configuration()
573{
574 char *extra_cdrom_params;
575 char *mondo_mkisofs_sz;
576 char *command;
577 char *mtpt;
578 char *hostname, *ip_address;
579 int retval = 0;
580 long avm = 0;
581 char *colon;
582 char *cdr_exe;
583 char *tmp;
584 char call_before_iso_user[MAX_STR_LEN] = "\0";
585 int rdsiz_MB;
586 char *iso_dev;
587 char *iso_mnt;
588 char *iso_tmp;
589 char *iso_path;
590
591 assert(bkpinfo != NULL);
592 malloc_string(extra_cdrom_params);
593 malloc_string(mondo_mkisofs_sz);
594 malloc_string(command);
595 malloc_string(mtpt);
596 malloc_string(hostname);
597 malloc_string(ip_address);
598 malloc_string(cdr_exe);
599 malloc_string(tmp);
600 malloc_string(iso_dev);
601 malloc_string(iso_mnt);
602 malloc_string(iso_tmp);
603 malloc_string(iso_path);
604 bkpinfo->optimal_set_size =
605 (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
606 1024;
607
608 log_msg(1, "Foo");
609 if (bkpinfo->backup_media_type == tape) {
610 log_msg(1, "Bar");
611 sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
612 log_msg(1, "tmp = '%s'", tmp);
613 if (run_program_and_log_output(tmp, 3)) {
614 fatal_error
615 ("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.");
616 }
617 }
618 make_hole_for_dir(bkpinfo->scratchdir);
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 g_backup_media_type = bkpinfo->backup_media_type;
904 paranoid_free(mtpt);
905 paranoid_free(extra_cdrom_params);
906 paranoid_free(mondo_mkisofs_sz);
907 paranoid_free(command);
908 paranoid_free(hostname);
909 paranoid_free(ip_address);
910 paranoid_free(cdr_exe);
911 paranoid_free(tmp);
912 paranoid_free(iso_dev);
913 paranoid_free(iso_mnt);
914 paranoid_free(iso_tmp);
915 paranoid_free(iso_path);
916 return (retval);
917}
918
919
920
921/**
922 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
923 * Seeds the random-number generator, loads important modules, checks the sanity
924 * of the user's Linux distribution, and deletes logfile.
925 * @param bkpinfo The backup information structure. Will be initialized.
926 * @return number of errors (0 for success)
927 */
928int pre_param_configuration()
929{
930 int res = 0;
931 char *tmp = NULL;
932
933 make_hole_for_dir(MNT_CDROM);
934 assert(bkpinfo != NULL);
935 srandom((unsigned long) (time(NULL)));
936 insmod_crucial_modules();
937 if (bkpinfo->disaster_recovery) {
938 if (!does_nonMS_partition_exist()) {
939 fatal_error
940 ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
941 }
942 }
943
944 unlink(MONDO_TRACEFILE);
945 asprintf(&tmp,"rm -Rf %s/changed.files*",MINDI_CACHE);
946 run_program_and_log_output(tmp, FALSE);
947 paranoid_free(tmp);
948 if (find_and_store_mondoarchives_home(g_mondo_home)) {
949 fprintf(stderr,
950 "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");
951 res++;
952 return (res);
953 }
954 res += some_basic_system_sanity_checks();
955 if (res) {
956 log_it("Your distribution did not pass Mondo's sanity test.");
957 }
958 g_current_media_number = 1;
959 bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
960 return (res);
961}
962
963void setup_tmpdir(char *path) {
964
965 char *tmp = NULL;
966 char *p = NULL;
967
968 if (bkpinfo->tmpdir != NULL) {
969 /* purging a potential old tmpdir */
970 asprintf(&tmp,"rm -Rf %s",bkpinfo->tmpdir);
971 run_program_and_log_output(tmp, FALSE);
972 paranoid_free(tmp);
973 }
974
975 if (getenv("TMPDIR")) {
976 asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
977 } else if (getenv("TMP")) {
978 asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
979 } else if (path != NULL) {
980 asprintf(&tmp, "%s/mondo.tmp.XXXXXX", path);
981 } else {
982 asprintf(&tmp, "/tmp/mondo.tmp.XXXXXX");
983 }
984 p = mkdtemp(tmp);
985 if (p == NULL) {
986 log_it("Failed to create global tmp directory %s for Mondo.",tmp);
987 finish(-1);
988 }
989 strcpy(bkpinfo->tmpdir,p);
990 paranoid_free(tmp);
991 //sprintf(bkpinfo->tmpdir, "%s/tmpfs/mondo.tmp.%d", "/tmp", (int) (random() % 32768)); // for mondorestore
992}
993
994
995/**
996 * Reset all fields of the backup information structure to a sensible default.
997 * @param bkpinfo The @c bkpinfo to reset.
998 */
999void reset_bkpinfo()
1000{
1001 int i;
1002
1003 log_msg(1, "Hi");
1004 assert(bkpinfo != NULL);
1005 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
1006
1007 /* special case for tmpdir as used eveywhere after */
1008 setup_tmpdir(NULL);
1009
1010 bkpinfo->manual_cd_tray = FALSE;
1011 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
1012 bkpinfo->media_device[0] = '\0';
1013 for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
1014 bkpinfo->media_size[i] = -1;
1015 }
1016 bkpinfo->boot_loader = '\0';
1017 bkpinfo->boot_device[0] = '\0';
1018 bkpinfo->zip_exe[0] = '\0';
1019 bkpinfo->zip_suffix[0] = '\0';
1020 bkpinfo->restore_path[0] = '\0';
1021 bkpinfo->use_lzo = FALSE;
1022 bkpinfo->use_gzip = FALSE;
1023 bkpinfo->do_not_compress_these[0] = '\0';
1024 bkpinfo->verify_data = FALSE;
1025 bkpinfo->backup_data = FALSE;
1026 bkpinfo->restore_data = FALSE;
1027 bkpinfo->disaster_recovery =
1028 (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
1029 if (bkpinfo->disaster_recovery) {
1030 strcpy(bkpinfo->isodir, "/");
1031 } else {
1032 strcpy(bkpinfo->isodir, "/root/images/mondo");
1033 }
1034 strcpy(bkpinfo->prefix, STD_PREFIX);
1035
1036 bkpinfo->scratchdir[0] = '\0';
1037 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
1038 bkpinfo->optimal_set_size = 0;
1039 bkpinfo->backup_media_type = none;
1040 strcpy(bkpinfo->include_paths, "/");
1041 bkpinfo->exclude_paths[0] = '\0';
1042 bkpinfo->call_before_iso[0] = '\0';
1043 bkpinfo->call_make_iso[0] = '\0';
1044 bkpinfo->call_burn_iso[0] = '\0';
1045 bkpinfo->call_after_iso[0] = '\0';
1046 bkpinfo->image_devs[0] = '\0';
1047 bkpinfo->postnuke_tarball[0] = '\0';
1048 bkpinfo->kernel_path[0] = '\0';
1049 bkpinfo->nfs_mount[0] = '\0';
1050 bkpinfo->nfs_remote_dir[0] = '\0';
1051 bkpinfo->wipe_media_first = FALSE;
1052 bkpinfo->differential = FALSE;
1053 bkpinfo->cdrw_speed = 0;
1054// patch by Herman Kuster
1055 bkpinfo->differential = 0;
1056// patch end
1057 bkpinfo->compression_level = 3;
1058}
1059
1060
1061
1062
1063/**
1064 * Get the remaining free space (in MB) on @p partition.
1065 * @param partition The partition to check free space on (either a device or a mountpoint).
1066 * @return The free space on @p partition, in MB.
1067 */
1068long free_space_on_given_partition(char *partition)
1069{
1070 char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
1071 long res;
1072
1073 assert_string_is_neither_NULL_nor_zerolength(partition);
1074
1075 sprintf(command, "df -m -P %s &> /dev/null", partition);
1076 if (system(command)) {
1077 return (-1);
1078 } // partition does not exist
1079 sprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
1080 partition);
1081 strcpy(out_sz, call_program_and_get_last_line_of_output(command));
1082 if (strlen(out_sz) == 0) {
1083 return (-1);
1084 } // error within df, probably
1085 res = atol(out_sz);
1086 return (res);
1087}
1088
1089
1090
1091/**
1092 * Check the user's system for sanity. Checks performed:
1093 * - make sure user has enough RAM (32mb required, 64mb recommended)
1094 * - make sure user has enough free space in @c /
1095 * - check kernel for ramdisk support
1096 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
1097 * - make sure CD-ROM is unmounted
1098 * - make sure /etc/modules.conf exists
1099 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
1100 *
1101 * @return number of problems with the user's setup (0 for success)
1102 */
1103int some_basic_system_sanity_checks()
1104{
1105
1106 /*@ buffers ************ */
1107 char tmp[MAX_STR_LEN];
1108 // char command[MAX_STR_LEN];
1109
1110 /*@ int's *************** */
1111 int retval = 0;
1112 long Lres;
1113
1114
1115 mvaddstr_and_log_it(g_currentY, 0,
1116 "Checking sanity of your Linux distribution");
1117#ifndef __FreeBSD__
1118 if (system("which mkfs.vfat &> /dev/null")
1119 && !system("which mkfs.msdos &> /dev/null")) {
1120 log_it
1121 ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
1122 run_program_and_log_output
1123 ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
1124 }
1125 strcpy(tmp,
1126 call_program_and_get_last_line_of_output
1127 ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
1128 if (atol(tmp) < 35000) {
1129 retval++;
1130 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
1131 }
1132 if (atol(tmp) < 66000) {
1133 log_to_screen
1134 ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
1135 }
1136#endif
1137
1138 Lres = free_space_on_given_partition(MINDI_CACHE);
1139 log_it("Free space on partition of %s = %ld MB", MINDI_CACHE, Lres);
1140
1141 if (Lres < 50) {
1142 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);
1143 fatal_error(tmp);
1144 }
1145
1146 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
1147 retval++;
1148 log_to_screen
1149 ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
1150 fatal_error
1151 ("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. :)");
1152 }
1153#ifndef __FreeBSD__
1154 if (run_program_and_log_output
1155 ("grep ramdisk /proc/devices", FALSE)) {
1156 if (!ask_me_yes_or_no
1157 ("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?"))
1158 {
1159 // retval++;
1160 log_to_screen
1161 ("It looks as if your kernel lacks ramdisk and initrd support.");
1162 log_to_screen
1163 ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
1164 }
1165 }
1166#endif
1167 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
1168 retval += whine_if_not_found("mkisofs");
1169 if (system("which dvdrecord > /dev/null 2> /dev/null")) {
1170 retval += whine_if_not_found("cdrecord");
1171 }
1172 retval += whine_if_not_found("bzip2");
1173 retval += whine_if_not_found("gzip");
1174 retval += whine_if_not_found("awk");
1175 retval += whine_if_not_found("md5sum");
1176 retval += whine_if_not_found("strings");
1177 retval += whine_if_not_found("mindi");
1178 retval += whine_if_not_found("buffer");
1179
1180 // abort if Windows partition but no ms-sys and parted
1181 if (!run_program_and_log_output
1182 ("mount | grep -w vfat | grep -vE \"/dev/fd|nexdisk\"", 0)
1183 ||
1184 !run_program_and_log_output
1185 ("mount | grep -w dos | grep -vE \"/dev/fd|nexdisk\"", 0)) {
1186 log_to_screen("I think you have a Windows 9x partition.");
1187 retval += whine_if_not_found("parted");
1188#ifndef __IA64__
1189 /* IA64 always has one vfat partition for EFI even without Windows */
1190 // retval +=
1191 if (!find_home_of_exe("ms-sys")) {
1192 log_to_screen("Please install ms-sys just in case.");
1193 }
1194#endif
1195 }
1196
1197 if (!find_home_of_exe("cmp")) {
1198 if (!find_home_of_exe("true")) {
1199 whine_if_not_found("cmp");
1200 } else {
1201 log_to_screen
1202 ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1203 if (run_program_and_log_output
1204 ("cp -f `which true` /usr/bin/cmp", 0)) {
1205 fatal_error("Failed to create dummy 'cmp' file.");
1206 }
1207 }
1208 }
1209 run_program_and_log_output
1210 ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1211 strcpy(tmp,
1212 call_program_and_get_last_line_of_output
1213 ("mount | grep -E \"cdr(om|w)\""));
1214 if (strcmp("", tmp)) {
1215 if (strstr(tmp, "autofs")) {
1216 log_to_screen
1217 ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1218 log_to_screen
1219 ("if a CD actually is inserted. If a CD is inserted, please");
1220 log_to_screen("eject it. Thank you.");
1221 log_it
1222 ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1223 } else
1224 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1225 retval++;
1226 fatal_error
1227 ("Your CD-ROM drive is mounted. Please unmount it.");
1228 }
1229 }
1230#ifndef __FreeBSD__
1231 if (!does_file_exist("/etc/modules.conf")) {
1232 if (does_file_exist("/etc/conf.modules")) {
1233 log_it("Linking /etc/modules.conf to /etc/conf.modules");
1234 run_program_and_log_output
1235 ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
1236 } else if (does_file_exist("/etc/modprobe.d")) {
1237 log_it
1238 ("Directory /etc/modprobe.d found. mindi will use its contents.");
1239 } else if (does_file_exist("/etc/modprobe.conf")) {
1240 log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
1241 run_program_and_log_output
1242 ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
1243 } else {
1244 retval++;
1245 log_to_screen
1246 ("Please find out what happened to /etc/modules.conf");
1247 }
1248 }
1249#endif
1250
1251 run_program_and_log_output("cat /etc/fstab", 5);
1252#ifdef __FreeBSD__
1253 run_program_and_log_output("vinum printconfig", 5);
1254#else
1255 run_program_and_log_output("cat /etc/raidtab", 5);
1256#endif
1257
1258 if (run_program_and_log_output("mindi -V", 1)) {
1259 log_to_screen("Could not ascertain mindi's version number.");
1260 log_to_screen
1261 ("You have not installed Mondo and/or Mindi properly.");
1262 log_to_screen("Please uninstall and reinstall them both.");
1263 fatal_error("Please reinstall Mondo and Mindi.");
1264 }
1265 sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1266 if (run_program_and_log_output(tmp, 5)) {
1267 sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1268 log_to_screen(tmp);
1269 log_to_screen
1270 ("Please run that command by hand and examine /var/log/mindi.log");
1271 log_to_screen
1272 ("for more information. Perhaps your /etc/fstab file is insane.");
1273 log_to_screen
1274 ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1275 retval++;
1276 }
1277
1278 if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1279 && !does_file_exist("/etc/raidtab")) {
1280 log_to_screen
1281 ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1282 create_raidtab_from_mdstat("/etc/raidtab");
1283 }
1284
1285 if (retval) {
1286 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1287 } else {
1288 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1289 }
1290 return (retval);
1291}
1292
1293/**
1294 * Retrieve the line containing @p label from the config file.
1295 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1296 * @param label What to read from the file.
1297 * @param value Where to put it.
1298 * @return 0 for success, 1 for failure.
1299 */
1300int read_cfg_var(char *config_file, char *label, char *value)
1301{
1302 /*@ buffer ****************************************************** */
1303 char command[MAX_STR_LEN * 2];
1304 char tmp[MAX_STR_LEN];
1305
1306 /*@ end vars *************************************************** */
1307
1308 assert_string_is_neither_NULL_nor_zerolength(config_file);
1309 assert_string_is_neither_NULL_nor_zerolength(label);
1310 if (!does_file_exist(config_file)) {
1311 sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1312 config_file);
1313 log_to_screen(tmp);
1314 value[0] = '\0';
1315 return (1);
1316 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1317 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1318 return (0);
1319 } else {
1320 sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1321 label, config_file);
1322 strcpy(value, call_program_and_get_last_line_of_output(command));
1323 if (strlen(value) == 0) {
1324 return (1);
1325 } else {
1326 return (0);
1327 }
1328 }
1329}
1330
1331
1332
1333/**
1334 * Remount @c supermount if it was unmounted earlier.
1335 */
1336void remount_supermounts_if_necessary()
1337{
1338 if (g_remount_cdrom_at_end) {
1339 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1340 }
1341 if (g_remount_floppy_at_end) {
1342 run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1343 }
1344}
1345
1346/**
1347 * Unmount @c supermount if it's mounted.
1348 */
1349void unmount_supermounts_if_necessary()
1350{
1351 if (run_program_and_log_output
1352 ("mount | grep cdrom | grep super", FALSE) == 0) {
1353 g_remount_cdrom_at_end = TRUE;
1354 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1355 }
1356 if (run_program_and_log_output
1357 ("mount | grep floppy | grep super", FALSE) == 0) {
1358 g_remount_floppy_at_end = TRUE;
1359 run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1360 }
1361}
1362
1363/**
1364 * Whether we had to stop autofs (if so, restart it at end).
1365 */
1366bool g_autofs_stopped = FALSE;
1367
1368/**
1369 * Path to the autofs initscript ("" if none exists).
1370 */
1371char g_autofs_exe[MAX_STR_LEN];
1372
1373/**
1374 * Autofs initscript in Xandros Linux distribution.
1375 */
1376#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1377
1378/**
1379 * Autofs initscript in most Linux distributions.
1380 */
1381#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1382
1383/**
1384 * If autofs is mounted, stop it (restart at end).
1385 */
1386void stop_autofs_if_necessary()
1387{
1388 char tmp[MAX_STR_LEN];
1389
1390 g_autofs_exe[0] = '\0';
1391 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1392 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1393 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1394 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1395 }
1396
1397 if (!g_autofs_exe[0]) {
1398 log_msg(3, "No autofs detected.");
1399 } else {
1400 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1401// FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1402 sprintf(tmp, "%s stop", g_autofs_exe);
1403 if (run_program_and_log_output(tmp, 2)) {
1404 log_it("Failed to stop autofs - I assume it wasn't running");
1405 } else {
1406 g_autofs_stopped = TRUE;
1407 log_it("Stopped autofs OK");
1408 }
1409 }
1410}
1411
1412/**
1413 * If autofs was stopped earlier, restart it.
1414 */
1415void restart_autofs_if_necessary()
1416{
1417 char tmp[MAX_STR_LEN];
1418
1419 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1420 log_msg(3, "No autofs detected.");
1421 return;
1422 }
1423 sprintf(tmp, "%s start", g_autofs_exe);
1424 if (run_program_and_log_output(tmp, 2)) {
1425 log_it("Failed to start autofs");
1426 } else {
1427 g_autofs_stopped = FALSE;
1428 log_it("Started autofs OK");
1429 }
1430}
1431
1432
1433/**
1434 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1435 */
1436void mount_boot_if_necessary()
1437{
1438 char tmp[MAX_STR_LEN];
1439 char command[MAX_STR_LEN];
1440
1441 log_msg(1, "Started sub");
1442 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1443 g_boot_mountpt[0] = '\0';
1444 log_msg(4, "Done. Great. Seeting command to something");
1445 strcpy(command,
1446 "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1447 log_msg(4, "Cool. Command = '%s'", command);
1448 strcpy(tmp, call_program_and_get_last_line_of_output(command));
1449 log_msg(4, "tmp = '%s'", tmp);
1450 if (tmp[0]) {
1451 log_it("/boot is at %s according to /etc/fstab", tmp);
1452 if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1453 if (!run_program_and_log_output("mount /boot", 5)) {
1454 strcpy(g_boot_mountpt, "/boot");
1455 log_msg(1, "Mounted /boot");
1456 } else {
1457 log_it("...ignored cos it's a label or uuid :-)");
1458 }
1459 } else {
1460 sprintf(command, "mount | grep -E '^%s'", tmp);
1461 log_msg(3, "command = %s", command);
1462 if (run_program_and_log_output(command, 5)) {
1463 strcpy(g_boot_mountpt, tmp);
1464 sprintf(tmp,
1465 "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1466 g_boot_mountpt);
1467 log_it(tmp);
1468 sprintf(tmp, "mount %s", g_boot_mountpt);
1469 if (run_program_and_log_output(tmp, 5)) {
1470 g_boot_mountpt[0] = '\0';
1471 log_msg(1, "Plan B");
1472 if (!run_program_and_log_output("mount /boot", 5)) {
1473 strcpy(g_boot_mountpt, "/boot");
1474 log_msg(1, "Plan B worked");
1475 } else {
1476 log_msg(1,
1477 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1478 }
1479 }
1480 }
1481 }
1482 }
1483 log_msg(1, "Ended sub");
1484}
1485
1486
1487/**
1488 * If we mounted /boot earlier, unmount it.
1489 */
1490void unmount_boot_if_necessary()
1491{
1492 char tmp[MAX_STR_LEN];
1493
1494 log_msg(3, "starting");
1495 if (g_boot_mountpt[0]) {
1496 sprintf(tmp, "umount %s", g_boot_mountpt);
1497 if (run_program_and_log_output(tmp, 5)) {
1498 log_it("WARNING - unable to unmount /boot");
1499 }
1500 }
1501 log_msg(3, "leaving");
1502}
1503
1504
1505
1506/**
1507 * Write a line to a configuration file. Writes a line of the form,
1508 * @c label @c value.
1509 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1510 * @param label What to call this bit of data you're writing.
1511 * @param value The bit of data you're writing.
1512 * @return 0 for success, 1 for failure.
1513 */
1514int write_cfg_var(char *config_file, char *label, char *value)
1515{
1516 /*@ buffers ***************************************************** */
1517 char command[MAX_STR_LEN * 2];
1518 char tempfile[MAX_STR_LEN];
1519 char tmp[MAX_STR_LEN];
1520
1521
1522 /*@ end vars *************************************************** */
1523 assert_string_is_neither_NULL_nor_zerolength(config_file);
1524 assert_string_is_neither_NULL_nor_zerolength(label);
1525 assert(value != NULL);
1526 if (!does_file_exist(config_file)) {
1527 sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1528 config_file);
1529 log_to_screen(tmp);
1530 return (1);
1531 }
1532 sprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1533 if (does_file_exist(config_file)) {
1534 sprintf(command, "grep -vE '^%s .*$' %s > %s",
1535 label, config_file, tempfile);
1536 paranoid_system(command);
1537 }
1538 sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1539 paranoid_system(command);
1540 sprintf(command, "mv -f %s %s", tempfile, config_file);
1541 paranoid_system(command);
1542 unlink(tempfile);
1543 return (0);
1544}
1545
1546
1547/**
1548 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1549 * information to the logfile.
1550 */
1551void standard_log_debug_msg(int debug_level, const char *szFile,
1552 const char *szFunction, int nLine,
1553 const char *fmt, ...)
1554{
1555 va_list args;
1556 int i;
1557 static int depth = 0;
1558 char *tmp;
1559 FILE *fout;
1560
1561 if (depth > 5) {
1562 depth--;
1563 return;
1564 }
1565 depth++;
1566
1567 malloc_string(tmp);
1568
1569 if (debug_level <= g_loglevel) {
1570 va_start(args, fmt);
1571 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1572 return;
1573 } // fatal_error("Failed to openout to logfile - sheesh..."); }
1574
1575 // add tabs to distinguish log levels
1576 if (debug_level > 0) {
1577 for (i = 1; i < debug_level; i++)
1578 fprintf(fout, "\t");
1579 if (getpid() == g_main_pid)
1580 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1581 nLine);
1582 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1583 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1584 nLine);
1585 else
1586 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1587 szFunction, nLine);
1588 }
1589 vfprintf(fout, fmt, args);
1590
1591 // do not slow down the progran if standard debug level
1592 // must be enabled: if no flush, the log won't be up-to-date if there
1593 // is a segfault
1594 //if (g_dwDebugLevel != 1)
1595
1596 va_end(args);
1597 fprintf(fout, "\n");
1598 paranoid_fclose(fout);
1599 }
1600 depth--;
1601 paranoid_free(tmp);
1602}
1603
1604/**
1605 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1606 */
1607void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1608 ...) = standard_log_debug_msg;
1609
1610
1611/**
1612 * If @p y, malloc @p x, else free @p x.
1613 * @bug This function seems orphaned. Please remove.
1614 */
1615#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1616
1617/**
1618 * Allocate or free important globals, depending on @p mal.
1619 * @param mal If TRUE, malloc; if FALSE, free.
1620 */
1621void do_libmondo_global_strings_thing(int mal)
1622{
1623 if (mal) {
1624 iamhere("Malloc'ing globals");
1625 malloc_string(g_boot_mountpt);
1626 malloc_string(g_mondo_home);
1627 malloc_string(g_tmpfs_mountpt);
1628 malloc_string(g_erase_tmpdir_and_scratchdir);
1629 malloc_string(g_serial_string);
1630 malloc_string(g_magicdev_command);
1631 } else {
1632 iamhere("Freeing globals");
1633 paranoid_free(g_boot_mountpt);
1634 paranoid_free(g_mondo_home);
1635 paranoid_free(g_tmpfs_mountpt);
1636 paranoid_free(g_erase_tmpdir_and_scratchdir);
1637 paranoid_free(g_serial_string);
1638 paranoid_free(g_magicdev_command);
1639 }
1640
1641 /*
1642 char**list_of_arrays[] = {
1643 &g_boot_mountpt,
1644 &g_mondo_home,
1645 &g_tmpfs_mountpt,
1646 &g_erase_tmpdir_and_scratchdir,
1647 &g_serial_string,
1648 &g_magicdev_command,
1649 NULL};
1650
1651 char**ppcurr;
1652 int i;
1653
1654 for(i=0;list_of_arrays[i];i++)
1655 {
1656 log_msg(5, "Allocating %d", i);
1657 ppcurr = list_of_arrays[i];
1658 if (mal)
1659 { *ppcurr = malloc(MAX_STR_LEN); }
1660 else
1661 {
1662 if (*ppcurr)
1663 {
1664 free(*ppcurr);
1665 }
1666 }
1667 }
1668 log_msg(5, "Returning");
1669 */
1670}
1671
1672/**
1673 * Allocate important globals.
1674 * @see do_libmondo_global_strings_thing
1675 */
1676void malloc_libmondo_global_strings(void)
1677{
1678 do_libmondo_global_strings_thing(1);
1679}
1680
1681/**
1682 * Free important globals.
1683 * @see do_libmondo_global_strings_thing
1684 */
1685void free_libmondo_global_strings(void)
1686{
1687 do_libmondo_global_strings_thing(0);
1688}
1689
1690
1691
1692/**
1693 * Stop @c magicdev if it's running.
1694 * The command used to start it is saved in @p g_magicdev_command.
1695 */
1696void stop_magicdev_if_necessary()
1697{
1698 strcpy(g_magicdev_command,
1699 call_program_and_get_last_line_of_output
1700 ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1701 if (g_magicdev_command[0]) {
1702 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1703 paranoid_system("killall magicdev");
1704 }
1705}
1706
1707
1708/**
1709 * Restart magicdev if it was stopped.
1710 */
1711void restart_magicdev_if_necessary()
1712{
1713 char *tmp;
1714
1715 malloc_string(tmp);
1716 if (g_magicdev_command && g_magicdev_command[0]) {
1717 sprintf(tmp, "%s &", g_magicdev_command);
1718 paranoid_system(tmp);
1719 }
1720 paranoid_free(tmp);
1721}
1722
1723/* @} - end of utilityGroup */
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