source: trunk/mondo/mondo/common/libmondo-tools.c @ 1

Last change on this file since 1 was 1, checked in by bcornec, 14 years ago

Initial import from latest mondo-2.04_cvs_20050503/mindi-1.04_cvs_20050503 on http://www.mondorescue.org

File size: 46.3 KB
Line 
1/* libmondo-tools.c                                  misc tools
2   $Id: libmondo-tools.c,v 1.14 2004/06/19 01:36:07 hugo Exp $
3.
4
5
606/28
7- abort if RAID partitions found but /etc/raidtab not found
8
906/25
10- don't insist on ms-sys; recommend it
11- don't fatal_error if can't open log file
12
1306/14
14- call mindi -V before calling mindi --makemountlist
15
1604/09
17- lots of malloc'd char*'s instead of char[]'s in post_param_config'n
18
1904/02
20- better sanity-checking, re: /etc/modules.conf
21
2202/15
23- abort if Windows dir but no ms-sys or parted
24
2502/08
26- missing ramdisk/initrd support is nonfatal now (but stupid)
27
2801/16
29- added g_kernel_version and get_kernel_version()
30
3101/08/2004
32- fixed /boot mounter thingy
33
3411/14/2003
35- if <50MB free in /root, softlink /root/images/mindi to
36  /home/root/images/mindi as a workaround
37
3810/23
39- streaming backups now generate 4MB sets; CDs, 8MB sets
40
4110/21
42- better at finding your /boot in order to mount it, if nec.
43- link /etc/modules.conf to /etc/conf.modules if former
44  is missing but latter is not
45- changed "/mnt/cdrom" to MNT_CDROM
46- changed "/mnt/floppy" to MNT_FLOPPY
47
4810/13
49- added stop_magicdev_if_necessary()
50- added restart_magicdev_if_necessary()
51
5210/02
53- don't eject if bkpinfo->please_dont_eject is TRUE
54
5509/28
56- fixed segfault in mount_..._necessary
57
5809/26
59- ask for cmp (or create workaround if possible)
60
6109/25
62- add DVD support
63
6409/24
65- don't overwrite existing media-dev value in bkpinfo IF it's
66  a tape device AND it's already populated by /dev/{something}
67  ...This helps w/ weird tape drives
68
6909/23
70- malloc/free global strings in new subroutines - malloc_libmondo_global_strings()
71  and free_libmondo_global_strings() - which are in libmondo-tools.c
72
7309/18
74- added stop_autofs_if_necessary() and restart_autofs_if_necessary()
75
7609/13
77- added log_debug_msg()
78- turned log_it() into a macro
79
8009/10
81- reduced PPCFG_RAMDISK to 150m (was 200m)
82- max set size is now 8MB (was 6)
83- added 'buffer' to requisite tools
84
8508/29
86- typical set size is now 5MB
87   
8807/22
89- increased PPCFG* to 200m
90
9105/07
92- changed grep -m1 to grep | head -n1 for Debian users
93- pre_param_...() also mkdir -p /mnt/cdrom, just in case
94
9505/05
96- cleaner logging of call to dd if=<tape> of=/dev/null
97- added Joshua Oreman's FreeBSD patches
98
9905/04
100- added Herman Kuster's multi-level bkp patch
101
10205/02
103- log_it() --- "Message repeated N times" (if it was)
104
10504/24
106- added lots of assert()'s and log_OS_error()'s
107- reset_bkpinfop() --- reset all media_size[] array
108- increased tmpfs ramdisk to size=100m
109
11004/22
111- post_param_configuration() --- store iso-dev and isodir
112
11304/05
114- re-enable tmpfs ramdisk/mountpt _but_ make sure size=80m
115- in post_param_configuration(), use cdrecord in preference
116  to dvdrecord now
117
11803/27
119- disabled tmpfs ramdisk/mountpt
120
12101/02/2003
122- bkpinfo->makefilelist = TRUE
123
12412/10/2002
125- added g_loglevel
126- fixed minor bug in clean_up_KDE_desktop_if_necessary()
127- log versions of newt, slang, ncurses
128- isodir defaults to / if disaster recovery
129
13011/28
131- unmount all CD devices at start
132- added clean_up_KDE_desktop_if_necessary()
133
13411/20
135- don't use lilo.conf.anaconda; abort instead
136- mount/unmount /boot partition for Gentoo 1.2 users
137
13811/13
139- call mindi --makemountlist as part of testing sanity of distro
140
14111/08
142- added a couple of chmod 700's (one for scratchdir, one for tmpdir)
143  to post_param_configuration()
144
14510/01 - 10/31
146- added checking of / and /root's free space to some_basic_sanity_checks()
147- moved some subroutines here from common/libmondo-archive
148
14909/01 - 09/30
150- don't write log_it()'s string to stdout, even if text mode
151- tell user the kernel is bad if it has no ramdisk support but allow
152  it if they want to use the failsafe kernel for booting
153- run_program_and_log_output() now takes boolean operator to specify
154  whether it will log its activities in the event of _success_
155- if mkfs.vfat not found but mkfs.msdos found then create a softlink
156  from the former to the latter
157
15808/01 - 08/31
159- if /etc/lilo.conf not found not /etc/lilo.conf.anaconda found
160  then create a softlink from the former to the latter, to work
161  around RH7.3's b0rken LILO support
162- handle unknown media size
163
16407/27
165- created
166*/
167
168
169/**
170 * @file
171 * Miscellaneous tools that didn't really fit anywhere else.
172 */
173
174#include "my-stuff.h"
175#include "mondostructures.h"
176#include "lib-common-externs.h"
177#include "libmondo-tools.h"
178#include "libmondo-gui-EXT.h"
179#include "libmondo-files-EXT.h"
180#include "libmondo-fork-EXT.h"
181#include "libmondo-raid-EXT.h"
182#include <sys/socket.h>
183#include <netdb.h>
184#include <netinet/in.h>
185#include <arpa/inet.h>
186
187/*@unused@*/
188//static char cvsid[] = "$Id: libmondo-tools.c,v 1.14 2004/06/19 01:36:07 hugo Exp $";
189
190extern int g_tape_buffer_size_MB;
191extern char *g_erase_tmpdir_and_scratchdir;
192extern char *g_serial_string;
193extern bool g_text_mode;
194extern int g_currentY;
195extern int g_current_media_number;
196
197/**
198 * @addtogroup globalGroup
199 * @{
200 */
201bool g_remount_cdrom_at_end, ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
202    g_remount_floppy_at_end; ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
203bool g_cd_recovery; ///< TRUE if we're making an "autonuke" backup.
204double g_kernel_version;
205
206/**
207 * The place where /boot is mounted.
208 */
209char *g_boot_mountpt=NULL;
210
211/**
212 * The location of Mondo's home directory.
213 */
214char *g_mondo_home=NULL;
215
216/**
217 * The serial string (used to differentiate between backups) of the current backup.
218 */
219char *g_serial_string=NULL;
220
221/**
222 * The location where tmpfs is mounted, or "" if it's not mounted.
223 */
224char *g_tmpfs_mountpt=NULL;
225char *g_magicdev_command=NULL;
226
227/**
228 * The default maximum level to log messages at or below.
229 */
230int g_loglevel=DEFAULT_DEBUG_LEVEL;
231
232/* @} - end of globalGroup */
233
234
235extern pid_t g_buffer_pid;
236extern pid_t g_main_pid;
237
238extern t_bkptype g_backup_media_type;
239
240extern bool am_I_in_disaster_recovery_mode(void);
241
242
243/**
244 * @addtogroup utilityGroup
245 * @{
246 */
247/**
248 * Assertion handler. Prints a friendly message to the user,
249 * offering to ignore all, dump core, break to debugger,
250 * exit, or ignore. Intended to be used with an assert() macro.
251 *
252 * @param file The file in which the assertion triggered.
253 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
254 * @param line The line number of the assert() statement.
255 * @param exp The expression that failed (as a string).
256 */
257void _mondo_assert_fail (const char *file,
258             const char *function,
259             int         line,
260             const char *exp) 
261{
262    static int ignoring_assertions = 0;
263    bool is_valid = TRUE;
264
265    log_it ("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line, function);
266    if (ignoring_assertions) {
267    log_it ("Well, the user doesn't care...");
268    return;
269    }
270
271#ifndef _XWIN
272    if (!g_text_mode)
273    newtSuspend();
274#endif
275    printf ("ASSERTION FAILED: `%s'\n", exp);
276    printf ("\tat %s:%d in %s\n\n", file, line, function);
277    printf ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
278    do {
279    is_valid = TRUE;
280    switch (toupper (getchar())) {
281    case 'A': // ignore (A)ll
282        ignoring_assertions = 1;
283        break;
284    case 'B': // a(B)ort
285        signal (SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
286        raise (SIGABRT);
287        break;          /* "can't get here" */
288    case 'D': // (D)ebug, aka asm("int 3")
289#ifdef __IA32__
290        __asm__ __volatile__ ("int $3"); // break to debugger
291#endif
292        break;
293    case 'E': // (E)xit
294        fatal_error ("Failed assertion -- see above for details");
295        break;          /* "can't get here" */
296    case 'I': // (I)gnore
297        break;
298    /* These next two work as follows:
299       the `default' catches the user's invalid choice and says so;
300       the '\n' catches the newline on the end and prints the prompt again.
301    */
302    case '\n':
303        printf ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
304        break;
305    default:
306        is_valid = FALSE;
307        printf ("Invalid choice.\n");
308        break;
309    }
310    } while (!is_valid);
311
312    if (ignoring_assertions) {
313    log_it ("Ignoring ALL assertions from now on.");
314    } else {
315    log_it ("Ignoring assertion: %s", exp);
316    }
317
318    getchar(); // skip \n
319
320#ifndef _XWIN
321    if (!g_text_mode)
322    newtResume();
323#endif
324}
325
326/**
327 * Clean's up users' KDE desktops.
328 * @bug Details about this function are unknown.
329 */
330void clean_up_KDE_desktop_if_necessary(void)
331{
332  char *tmp;
333
334  malloc_string(tmp);
335  strcpy(tmp, "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
336file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
337cat $file.old | awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
338else { print $0;};}' > $file ; fi ; done");
339  run_program_and_log_output(tmp, 5);
340  paranoid_free(tmp);
341}
342
343
344/**
345 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
346 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
347 *
348 * @param home_sz String to store the home directory ("" if it could not be found).
349 * @return 0 for success, nonzero for failure.
350 */
351int find_and_store_mondoarchives_home(char *home_sz)
352{
353  assert(home_sz!=NULL);
354  strcpy (home_sz,
355      call_program_and_get_last_line_of_output
356      ("find /usr/lib/ /usr/local/ /usr/share/ /usr/local/share/ /opt/ /ramdisk/usr/share/ -type d -maxdepth 2 -name include -prune -o -type d -maxdepth 2 -path '*/mondo/restore-scripts' -printf '%h\n' 2> /dev/null"));
357
358  if (home_sz[0] == '\0')
359    {
360      strcpy (home_sz,
361          call_program_and_get_last_line_of_output
362          ("find /usr -type d -path '*/mondo/restore-scripts' -follow -maxdepth 3 -printf '%h\n' 2> /dev/null"));
363    }
364  if (home_sz[0] == '\0')
365    {
366      return(1);
367    }
368  else
369    {
370      return(0);
371    }
372}
373
374
375char *get_architecture()
376{
377#ifdef __IA32__
378    return("i386");
379#endif
380#ifdef __IA64__
381    return("ia64");
382#endif
383    return("unknown");
384}
385
386
387
388double get_kernel_version()
389{
390  char *p, tmp[200];
391  double d;
392#ifdef __FreeBSD__
393  // JOSH - FIXME :)
394  d = 5.2; // :-)
395#else
396  strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
397  p = strchr(tmp, '.');
398  if (p)
399    {
400      p = strchr(++p, '.');
401      if (p)
402        {
403      while(*p) { *p=*(p+1); p++; }
404        }
405    }
406//  log_msg(1, "tmp = '%s'", tmp);
407  d = atof(tmp);
408#endif
409  log_msg(1, "g_kernel_version = %f", d);
410  return(d);
411}
412
413
414
415
416
417/**
418 * Get the current time.
419 * @return number of seconds since the epoch.
420 */
421long
422get_time ()
423{
424
425#if 0
426
427    /*@ pointers *****************************************************/
428  FILE *fin;
429
430    /*@ buffers ******************************************************/
431  char incoming[MAX_STR_LEN];
432
433    /*@ end vars *****************************************************/
434
435  if (!(fin = popen ("date +%s", "r"))) { log_OS_error("Cannot popen date"); return(0); }
436  fgets (incoming, MAX_STR_LEN - 1, fin);
437  paranoid_pclose (fin);
438  return (atol (incoming));
439#else
440  return (long) time ((void *) 0);
441#endif
442}
443
444
445
446
447
448
449
450/**
451 * Initialize a RAID volume structure, setting fields to zero. The
452 * actual hard drive is unaffected.
453 *
454 * @param raidrec The RAID volume structure to initialize.
455 * @note This function is system dependent.
456 */
457#ifdef __FreeBSD__
458void initialize_raidrec (struct vinum_volume *raidrec)
459{
460  int i, j;
461  raidrec->volname[0] = '\0';
462  raidrec->plexes = 0;
463  for (i = 0; i < 9; ++i) {
464    raidrec->plex[i].raidlevel = -1;
465    raidrec->plex[i].stripesize = 0;
466    raidrec->plex[i].subdisks = 0;
467    for (j = 0; j < 9; ++j) {
468       strcpy (raidrec->plex[i].sd[j].which_device, "");
469    }
470  }
471}
472#else
473void initialize_raidrec (struct raid_device_record *raidrec)
474{
475  assert(raidrec!=NULL);
476  raidrec->raid_device[0] = '\0';
477  raidrec->raid_level = 0;
478  raidrec->chunk_size = 4;
479  raidrec->persistent_superblock = 1;
480  raidrec->data_disks.entries = 0;
481  raidrec->spare_disks.entries = 0;
482  raidrec->parity_disks.entries = 0;
483  raidrec->failed_disks.entries = 0;
484  raidrec->additional_vars.entries = 0;
485}
486#endif
487
488
489
490
491/**
492 * Insert modules that Mondo requires.
493 * Currently inserts @c dos, @c fat, @c vfat, and @c osst for Linux;
494 * @c msdosfs and @c ext2fs for FreeBSD.
495 */
496void insmod_crucial_modules(void)
497{
498#ifdef __FreeBSD__
499  system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
500  system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
501#else
502  system("modprobe dos &> /dev/null");
503  system("modprobe fat &> /dev/null");
504  system("modprobe vfat &> /dev/null");
505  //  system("modprobe osst &> /dev/null");
506#endif
507}
508
509
510/**
511 * Log a trace message to the trace file.
512 * @bug This function seems orphaned. Please remove.
513 */
514void
515log_trace (char *o)
516{
517    /*@ pointers *****************************************************/
518  FILE *fout;
519
520    /*@ buffers ******************************************************/
521  char output[MAX_STR_LEN];
522
523    /*@ int    *******************************************************/
524  int i;
525
526    /*@ end vars ****************************************************/
527
528  if (o[0] == '\0')
529    {
530      return;
531    }
532  strcpy (output, o);
533  i = (int) strlen (output);
534  if (i <= 0)
535    {
536      return;
537    }
538  if (output[i - 1] < 32)
539    {
540      output[i - 1] = '\0';
541    }
542  if (g_text_mode /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ )
543    {
544      printf ("%s\n", output);
545    }
546
547  fout = fopen (MONDO_TRACEFILE, "a");
548  if (fout)
549    {
550      fprintf (fout, "%s\n", output);
551      paranoid_fclose (fout);
552    }
553  else
554    {
555      log_OS_error( "Cannot write to tracefile" );
556    }
557}
558
559
560
561
562
563/**
564 * Finish configuring the backup information structure. Call this function
565 * to set the parameters that depend on those that can be given on the command
566 * line.
567 *
568 * @param bkpinfo The backup information structure. Fields modified/used:
569 * - Used: @c bkpinfo->backup_data
570 * - Used: @c bkpinfo->backup_media_type
571 * - Used: @c bkpinfo->cdrw_speed
572 * - Used: @c bkpinfo->compression_level
573 * - Used: @c bkpinfo->include_paths
574 * - Used: @c bkpinfo->isodir
575 * - Used: @c bkpinfo->manual_cd_tray
576 * - Used: @c bkpinfo->make_cd_use_lilo
577 * - Used: @c bkpinfo->media_device
578 * - Used: @c bkpinfo->nfs_mount
579 * - Used: @c bkpinfo->nonbootable_backup
580 * - Used: @c bkpinfo->scratchdir
581 * - Used: @c bkpinfo->tmpdir
582 * - Used: @c bkpinfo->use_lzo
583 * - Modified: @c bkpinfo->call_before_iso
584 * - Modified: @c bkpinfo->call_make_iso
585 * - Modified: @c bkpinfo->optimal_set_size
586 * - Modified: @c bkpinfo->zip_exe
587 * - Modified: @c bkpinfo->zip_suffix
588 *
589 * @return number of errors, or 0 for success.
590 * @note Also creates directories that are specified in the @c bkpinfo structure but
591 * do not exist.
592 */
593int post_param_configuration (struct s_bkpinfo *bkpinfo)
594{
595  char *extra_cdrom_params;
596  char *mondo_mkisofs_sz;
597  char *command;
598  char *mtpt;
599  char *hostname, *ip_address;
600  int retval=0;
601  long avm = 0;
602  char *colon;
603  char *cdr_exe;
604  char *tmp;
605  int rdsiz_MB;
606      char *iso_dev;
607      char *iso_mnt;
608      char *iso_tmp;
609      char *iso_path;
610
611  assert(bkpinfo!=NULL);
612  malloc_string(extra_cdrom_params);
613  malloc_string(mondo_mkisofs_sz);
614  malloc_string(command);
615  malloc_string(mtpt);
616  malloc_string(hostname);
617  malloc_string(ip_address);
618  malloc_string(cdr_exe);
619  malloc_string(tmp);
620      malloc_string(iso_dev);
621      malloc_string(iso_mnt);
622      malloc_string(iso_tmp);
623      malloc_string(iso_path);
624  bkpinfo->optimal_set_size = (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type)?4:8) * 1024;
625
626  log_msg(1, "Foo");
627  if (bkpinfo->backup_media_type == tape)
628    {
629      log_msg(1, "Bar");
630      sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
631      log_msg(1, "tmp = '%s'", tmp);
632      if (run_program_and_log_output(tmp, 3))
633        {
634          fatal_error("Unable to open tape device. If you haven't specified it with -d, do so. If you already have, check your parameter. I think it's wrong.");
635    }
636    }   
637  make_hole_for_dir(bkpinfo->scratchdir);
638  make_hole_for_dir(bkpinfo->tmpdir);
639  if (bkpinfo->backup_media_type == iso)
640      make_hole_for_dir(bkpinfo->isodir);
641
642  run_program_and_log_output ("uname -a", 5);
643  run_program_and_log_output ("cat /etc/*issue*", 5);
644  sprintf(g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
645  sprintf(command, "mkdir -p %s", g_tmpfs_mountpt);
646  paranoid_system(command);
647  rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
648#ifdef __FreeBSD__
649  strcpy(tmp, call_program_and_get_last_line_of_output("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
650  avm += atol (tmp);
651  strcpy(tmp, call_program_and_get_last_line_of_output("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
652  avm += atol (tmp);
653  sprintf(command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm', g_tmpfs_mountpt);
654#else
655  strcpy(tmp, call_program_and_get_last_line_of_output("free | grep \":\" | tr -s ' ' '\t' | cut -f2 | head -n1"));
656  avm += atol (tmp);
657  sprintf(command, "mount /dev/shm -t tmpfs %s -o size=%d%c", g_tmpfs_mountpt, rdsiz_MB, 'm');
658  run_program_and_log_output ("cat /proc/cpuinfo", 5);
659  run_program_and_log_output ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc", 5);
660#endif
661  if (avm/1024 > rdsiz_MB*3)
662    {
663      if (run_program_and_log_output(command, 5))
664    {
665      g_tmpfs_mountpt[0] = '\0';
666      log_it("Failed to mount tmpfs");
667    }
668      else
669    {
670      log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
671    }
672    }
673  else
674    {
675      g_tmpfs_mountpt[0] = '\0';
676      log_it ("It doesn't seem you have enough swap to use tmpfs. Fine.");
677    }
678
679  if (bkpinfo->use_lzo)
680    {
681      strcpy (bkpinfo->zip_exe, "lzop");
682      strcpy (bkpinfo->zip_suffix, "lzo");
683    }
684  else if (bkpinfo->compression_level!=0)
685    {
686      strcpy (bkpinfo->zip_exe, "bzip2");
687      strcpy (bkpinfo->zip_suffix, "bz2");
688    }
689  else
690    {
691      bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
692    }
693
694// DVD
695
696  if (bkpinfo->backup_media_type == dvd)
697      {
698      extra_cdrom_params[0] = '\0';
699      mondo_mkisofs_sz[0] = '\0';
700      if (find_home_of_exe("growisofs"))
701    { strcpy(cdr_exe, "growisofs"); } // unlikely to be used
702      else
703        { fatal_error("Please install growisofs."); }
704      if (bkpinfo->nonbootable_backup)
705        { strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT); }
706      else if
707#ifdef __FreeBSD__
708        (TRUE)
709#else
710        (bkpinfo->make_cd_use_lilo)
711#endif
712#ifdef __IA64__
713        { strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO); }
714#else
715        { strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO); }
716#endif
717      else
718        { strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX); }
719      if (bkpinfo->manual_cd_tray)
720    {
721      fatal_error("Manual CD tray + DVD not supported yet.");
722      // -m isn't supported by growisofs, BTW...
723    }
724      else
725    {
726      sprintf (bkpinfo->call_make_iso,
727           "%s %s -Z %s . 2>> _ERR_",
728           mondo_mkisofs_sz,
729           extra_cdrom_params,
730           bkpinfo->media_device);
731        }
732      log_msg(2, "call_make_iso (DVD res) is ... %s", bkpinfo->call_make_iso);
733    } // end of DVD code
734
735// CD-R or CD-RW
736  if (bkpinfo->backup_media_type == cdrw || bkpinfo->backup_media_type == cdr)
737    {
738      extra_cdrom_params[0] = '\0';
739      if (!bkpinfo->manual_cd_tray)
740    {
741      strcat (extra_cdrom_params, "-waiti ");
742    }
743      if (bkpinfo->backup_media_type == cdrw)
744    {
745      strcat (extra_cdrom_params, "blank=fast ");
746    }
747      if (find_home_of_exe("cdrecord"))
748    { strcpy(cdr_exe, "cdrecord"); }
749      else if (find_home_of_exe("dvdrecord"))
750    { strcpy(cdr_exe, "dvdrecord"); }
751      else
752        { fatal_error("Please install either cdrecord or dvdrecord."); }
753      if (bkpinfo->nonbootable_backup)
754        { strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT); }
755      else if
756#ifdef __FreeBSD__
757        (TRUE)
758#else
759        (bkpinfo->make_cd_use_lilo)
760#endif
761#ifdef __IA64__
762        { strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO); }
763#else
764        { strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO); }
765#endif
766      else
767        { strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX); }
768      if (bkpinfo->manual_cd_tray)
769    {
770      sprintf (bkpinfo->call_before_iso,
771           "%s -o %s/temporary.iso . 2>> _ERR_", mondo_mkisofs_sz, bkpinfo->tmpdir);
772      sprintf (bkpinfo->call_make_iso,
773           "%s %s -v %s fs=4m dev=%s speed=%d %s/temporary.iso",
774           cdr_exe,
775           (bkpinfo->please_dont_eject)?" ":"-eject",
776           extra_cdrom_params, bkpinfo->media_device,
777           bkpinfo->cdrw_speed, bkpinfo->tmpdir);
778    }
779      else
780    {
781      sprintf (bkpinfo->call_make_iso,
782           "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
783           mondo_mkisofs_sz, cdr_exe,
784           (bkpinfo->please_dont_eject)?" ":"-eject",
785           extra_cdrom_params, bkpinfo->media_device,
786           bkpinfo->cdrw_speed);
787        }
788    } // end of CD code
789
790  /*
791  if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
792    {
793      sprintf (tmp,
794           "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
795           bkpinfo->media_device, bkpinfo->internal_tape_block_size);
796      if (system(tmp))
797    {
798      retval++;
799      fprintf (stderr,
800           "Cannot write to tape device. Is the tape set read-only?\n");
801    }
802    } // end of tape code
803  */
804
805
806  if (bkpinfo->backup_media_type == iso)
807    {
808
809/* Patch by Conor Daly <conor.daly@met.ie>
810 * 23-june-2004
811 * Break up isodir into iso_mnt and iso_path
812 * These will be used along with iso-dev at restore time
813 * to locate the ISOs where ever they're mounted
814 */
815
816      log_it("isodir = %s", bkpinfo->isodir);
817      sprintf(command, "df %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
818      log_it("command = %s", command);
819      log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
820      sprintf(iso_dev, "%s", call_program_and_get_last_line_of_output(command));
821      sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
822      write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
823
824      sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
825      log_it("command = %s", command);
826      log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
827      sprintf(iso_mnt, "%s", call_program_and_get_last_line_of_output(command));
828      sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
829      write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
830log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
831      sprintf(iso_tmp, "%s", bkpinfo->isodir);
832      if (strlen(iso_tmp) < strlen(iso_mnt))
833        {
834      iso_path[0] = '\0';
835    }
836      else
837        {
838          sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
839    }
840      sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
841      write_one_liner_data_file(tmp, iso_path);
842log_it("isodir: %s", iso_path);
843
844/* End patch */
845    } // end of iso code
846
847  if (bkpinfo->backup_media_type == nfs) {
848      strcpy (hostname, bkpinfo->nfs_mount);
849      colon = strchr (hostname, ':');
850      if (!colon) {
851      log_it ("nfs mount doesn't have a colon in it");
852      retval++;
853      } else {
854      struct hostent *hent;
855
856      *colon = '\0';
857      hent = gethostbyname (hostname);
858      if (!hent) {
859          log_it ("Can't resolve NFS mount (%s): %s", hostname, hstrerror (h_errno));
860          retval++;
861      } else {
862          strcpy (ip_address, inet_ntoa
863              ((struct in_addr)*((struct in_addr *)hent->h_addr)));
864          strcat (ip_address, strchr (bkpinfo->nfs_mount, ':'));
865          strcpy (bkpinfo->nfs_mount, ip_address);
866      }
867      }
868  }
869
870  log_it("Finished processing incoming params");
871  if (retval)
872    {
873      fprintf (stderr, "Type 'man mondoarchive' for help.\n");
874    }
875  sprintf (tmp, "%s", MONDO_TMPISOS);   /* added #define 22 apr 2002 */
876  if (does_file_exist (tmp))
877    {
878      unlink (tmp);
879    }
880  if (strlen (bkpinfo->tmpdir) < 2 || strlen (bkpinfo->scratchdir) < 2)
881    {
882      log_it ("tmpdir or scratchdir are blank/missing");
883      retval++;
884    }
885  if (bkpinfo->include_paths[0] == '\0')
886    {
887    //      fatal_error ("Why no backup path?");
888    strcpy (bkpinfo->include_paths, "/");
889    }
890  chmod(bkpinfo->scratchdir, 0700);
891  chmod(bkpinfo->tmpdir, 0700);
892  g_backup_media_type = bkpinfo->backup_media_type;
893  paranoid_free(mtpt);
894  paranoid_free(extra_cdrom_params);
895  paranoid_free(mondo_mkisofs_sz);
896  paranoid_free(command);
897  paranoid_free(hostname);
898  paranoid_free(ip_address);
899  paranoid_free(cdr_exe);
900  paranoid_free(tmp);
901  paranoid_free(iso_dev);
902  paranoid_free(iso_mnt);
903  paranoid_free(iso_tmp);
904  paranoid_free(iso_path);
905  return(retval);
906}
907
908
909
910/**
911 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
912 * Seeds the random-number generator, loads important modules, checks the sanity
913 * of the user's Linux distribution, and deletes logfile.
914 * @param bkpinfo The backup information structure. Will be initialized.
915 * @return number of errors (0 for success)
916 */
917int pre_param_configuration(struct s_bkpinfo *bkpinfo)
918{
919  int res=0;
920
921  make_hole_for_dir(MNT_CDROM);
922  assert(bkpinfo!=NULL);
923  srandom ((unsigned long)(time (NULL)));
924  insmod_crucial_modules();
925  reset_bkpinfo (bkpinfo); // also sets defaults ('/'=backup path, 3=compression level)
926  if (bkpinfo->disaster_recovery) {
927    if (!does_nonMS_partition_exist()) {
928      fatal_error ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
929    }
930  }
931
932  unlink (MONDO_TRACEFILE);
933  run_program_and_log_output( "rm -Rf /tmp/changed.files*", FALSE);
934  if (find_and_store_mondoarchives_home(g_mondo_home))
935    {
936      fprintf (stderr,
937           "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");
938      res++;
939      return(res);
940    }
941  res += some_basic_system_sanity_checks ();
942  if (res)
943    {
944      log_it ("Your distribution did not pass Mondo's sanity test.");
945    }
946  g_current_media_number = 1;
947  bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
948  return(res);
949}
950
951
952
953
954/**
955 * Reset all fields of the backup information structure to a sensible default.
956 * @param bkpinfo The @c bkpinfo to reset.
957 */
958void
959reset_bkpinfo (struct s_bkpinfo *bkpinfo)
960{
961  int i;
962
963  log_msg(1, "Hi");
964  assert(bkpinfo!=NULL);
965  memset((void*)bkpinfo, 0, sizeof(struct s_bkpinfo));
966  bkpinfo->manual_cd_tray = FALSE;
967  bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
968  bkpinfo->media_device[0] = '\0';
969  for(i=0; i<=MAX_NOOF_MEDIA; i++) { bkpinfo->media_size[i] = -1; }
970  bkpinfo->boot_loader = '\0';
971  bkpinfo->boot_device[0] = '\0';
972  bkpinfo->zip_exe[0] = '\0';
973  bkpinfo->zip_suffix[0] = '\0';
974  bkpinfo->restore_path[0] = '\0';
975  bkpinfo->use_lzo = FALSE;
976  bkpinfo->do_not_compress_these[0] = '\0';
977  bkpinfo->verify_data = FALSE;
978  bkpinfo->backup_data = FALSE;
979  bkpinfo->restore_data = FALSE;
980  bkpinfo->disaster_recovery = (am_I_in_disaster_recovery_mode()?TRUE:FALSE);
981  if (bkpinfo->disaster_recovery)
982    { strcpy(bkpinfo->isodir, "/"); }
983  else
984    { strcpy (bkpinfo->isodir, "/root/images/mondo"); }
985
986  bkpinfo->scratchdir[0] = '\0';
987  bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
988  sprintf( bkpinfo->tmpdir, "/tmp/tmpfs/mondo.tmp.%d", (int) ( random() %32768 ) ); // for mondorestore
989  bkpinfo->optimal_set_size = 0;
990  bkpinfo->backup_media_type = none;
991  strcpy (bkpinfo->include_paths, "/");
992  bkpinfo->exclude_paths[0] = '\0';
993  bkpinfo->call_before_iso[0] = '\0';
994  bkpinfo->call_make_iso[0] = '\0';
995  bkpinfo->call_burn_iso[0] = '\0';
996  bkpinfo->call_after_iso[0] = '\0';
997  bkpinfo->image_devs[0] = '\0';
998  bkpinfo->postnuke_tarball[0] = '\0';
999  bkpinfo->kernel_path[0] = '\0';
1000  bkpinfo->nfs_mount[0] = '\0';
1001  bkpinfo->nfs_remote_dir[0] = '\0';
1002  bkpinfo->wipe_media_first = FALSE;
1003  bkpinfo->differential = FALSE;
1004  bkpinfo->cdrw_speed = 0;
1005// patch by Herman Kuster 
1006  bkpinfo->differential = 0;
1007// patch end
1008  bkpinfo->compression_level = 3;
1009}
1010
1011
1012
1013
1014/**
1015 * Get the remaining free space (in MB) on @p partition.
1016 * @param partition The partition to check free space on (either a device or a mountpoint).
1017 * @return The free space on @p partition, in MB.
1018 */
1019long free_space_on_given_partition(char*partition)
1020{
1021  char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
1022  long res;
1023
1024  assert_string_is_neither_NULL_nor_zerolength(partition);
1025
1026  sprintf(command, "df -m %s &> /dev/null", partition);
1027  if (system(command))
1028    { return(-1); } // partition does not exist
1029  sprintf(command, "df -m %s | tail -n1 | tr -s ' ' '\t' | cut -f4", partition);
1030  strcpy(out_sz, call_program_and_get_last_line_of_output(command));
1031  if (strlen(out_sz)==0)
1032    { return(-1); } // error within df, probably
1033  res = atol(out_sz);
1034  return(res);
1035}
1036
1037
1038
1039/**
1040 * Check the user's system for sanity. Checks performed:
1041 * - make sure user has enough RAM (32mb required, 64mb recommended)
1042 * - make sure user has enough free space in @c /
1043 * - check kernel for ramdisk support
1044 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
1045 * - make sure CD-ROM is unmounted
1046 * - make sure /etc/modules.conf exists
1047 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
1048 *
1049 * @return number of problems with the user's setup (0 for success)
1050 */
1051int
1052some_basic_system_sanity_checks ()
1053{
1054
1055    /*@ buffers *************/
1056  char tmp[MAX_STR_LEN];
1057  //  char command[MAX_STR_LEN];
1058
1059    /*@ int's ****************/
1060  int retval = 0;
1061  long Lres;
1062
1063
1064  mvaddstr_and_log_it (g_currentY, 0,
1065               "Checking sanity of your Linux distribution");
1066#ifndef __FreeBSD__
1067  if (system("which mkfs.vfat &> /dev/null") && !system("which mkfs.msdos &> /dev/null"))
1068    {
1069      log_it("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
1070      run_program_and_log_output("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
1071    }
1072  strcpy (tmp,
1073      call_program_and_get_last_line_of_output
1074      ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
1075  if (atol (tmp) < 35000)
1076    {
1077      retval++;
1078      log_to_screen ("You must have at least 32MB of RAM to use Mondo.");
1079    }
1080  if (atol (tmp) < 66000)
1081    {
1082      log_to_screen
1083    ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
1084    }
1085#endif
1086
1087  if ((Lres = free_space_on_given_partition("/root"))==-1)
1088    { Lres = free_space_on_given_partition("/"); }
1089  log_it("Free space on given partition = %ld MB", Lres);
1090
1091  if (Lres < 50)
1092    {
1093      run_program_and_log_output("rm -Rf /root/images/mindi; mkdir -p /home/root/images/mindi; mkdir -p /root/images; ln -sf /home/root/images/mindi /root/images/mindi", 3);
1094      //      fatal_error("Your / (or /root) partition has <50MB free. Please adjust your partition table to something saner.");
1095    } 
1096
1097  if (system ("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null"))
1098    {
1099      retval++;
1100      log_to_screen
1101    ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
1102      fatal_error
1103        ("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. :)");
1104    }
1105#ifndef __FreeBSD__
1106  if (run_program_and_log_output ("cat /proc/devices | grep ramdisk", FALSE))
1107    {
1108      if (!ask_me_yes_or_no("Your kernel has no ramdisk support. That's mind-numbingly stupid but I'll allow it if you're planning to use a failsafe kernel. Are you?"))
1109        {
1110      //          retval++;
1111          log_to_screen
1112            ("It looks as if your kernel lacks ramdisk and initrd support.");
1113      log_to_screen
1114        ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
1115        }
1116    }
1117#endif
1118  retval += whine_if_not_found (MKE2FS_OR_NEWFS);
1119  retval += whine_if_not_found ("mkisofs");
1120  if (system("which dvdrecord > /dev/null 2> /dev/null"))
1121    { retval += whine_if_not_found ("cdrecord"); }
1122  retval += whine_if_not_found ("bzip2");
1123  retval += whine_if_not_found ("awk");
1124  retval += whine_if_not_found ("md5sum");
1125  retval += whine_if_not_found ("strings");
1126  retval += whine_if_not_found ("mindi");
1127  retval += whine_if_not_found ("buffer");
1128
1129  // abort if Windows partition but no ms-sys and parted
1130  if (!run_program_and_log_output("mount | grep -w vfat | grep -v /dev/fd | grep -v nexdisk", 0) ||
1131      !run_program_and_log_output("mount | grep -w dos | grep -v /dev/fd | grep -v nexdisk", 0))
1132    {
1133      log_to_screen("I think you have a Windows 9x partition.");
1134      retval += whine_if_not_found ("parted");
1135#ifndef __IA64__
1136      /* IA64 always has one vfat partition for EFI even without Windows */
1137      // retval +=
1138      if (!find_home_of_exe("ms-sys"))
1139        {
1140      log_to_screen("Please install ms-sys just in case.");
1141    }
1142#endif
1143    }
1144
1145  if (!find_home_of_exe("cmp"))
1146    {
1147      if (!find_home_of_exe("true"))
1148        { whine_if_not_found ("cmp"); }
1149      else
1150        {
1151          log_to_screen("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1152          if (run_program_and_log_output("cp -f `which true` /usr/bin/cmp", 0))
1153            { fatal_error("Failed to create dummy 'cmp' file."); }
1154        }
1155    }
1156  run_program_and_log_output("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1157  strcpy (tmp,
1158      call_program_and_get_last_line_of_output
1159      ("mount | grep -E \"cdr(om|w)\""));
1160  if (strcmp ("", tmp))
1161    {
1162    if (strstr (tmp, "autofs")) {
1163        log_to_screen ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1164        log_to_screen ("if a CD actually is inserted. If a CD is inserted, please");
1165        log_to_screen ("eject it. Thank you.");
1166        log_it ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1167    } else if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1168        retval++;
1169        fatal_error ("Your CD-ROM drive is mounted. Please unmount it.");
1170    }
1171    }
1172#ifndef __FreeBSD__
1173  if (!does_file_exist ("/etc/modules.conf"))
1174    {
1175      if (does_file_exist("/etc/conf.modules"))
1176        {
1177          log_it("Linking /etc/modules.conf to /etc/conf.modules");
1178          run_program_and_log_output("ln -sf /etc/conf.modules /etc/modules.conf", 5);
1179        }
1180      else if (does_file_exist("/etc/modprobe.d"))
1181    {
1182      log_it("Directory /etc/modprobe.d found. mindi will use its contents.");
1183    }
1184      else if (does_file_exist("/etc/modprobe.conf"))
1185        {
1186          log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
1187          run_program_and_log_output("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
1188    }
1189      else
1190        {
1191          retval++;
1192          log_to_screen ("Please find out what happened to /etc/modules.conf");
1193        }
1194    }
1195#endif
1196
1197  run_program_and_log_output("cat /etc/fstab", 5);
1198#ifdef __FreeBSD__
1199  run_program_and_log_output("vinum printconfig", 5);
1200#else
1201  run_program_and_log_output("cat /etc/raidtab", 5);
1202#endif
1203
1204  if (run_program_and_log_output("mindi -V", 1))
1205    {
1206      log_to_screen("Could not ascertain mindi's version number.");
1207      log_to_screen("You have not installed Mondo and/or Mindi properly.");
1208      log_to_screen("Please uninstall and reinstall them both.");
1209      fatal_error("Please reinstall Mondo and Mindi.");
1210    }
1211  if (run_program_and_log_output("mindi --makemountlist /tmp/mountlist.txt.test", 5))
1212    {
1213      log_to_screen("Mindi --makemountlist /tmp/mountlist.txt.test failed for some reason.");
1214      log_to_screen("Please run that command by hand and examine /var/log/mindi.log");
1215      log_to_screen("for more information. Perhaps your /etc/fstab file is insane.");
1216      log_to_screen("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1217      retval++;
1218    }
1219
1220  if (!run_program_and_log_output("fdisk -l | grep -i raid", 1) && !does_file_exist("/etc/raidtab"))
1221    {
1222      log_to_screen("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1223      create_raidtab_from_mdstat("/etc/raidtab", "/proc/mdstat");
1224    }
1225 
1226  if (retval)
1227    {
1228      mvaddstr_and_log_it (g_currentY++, 74, "Failed.");
1229    }
1230  else
1231    {
1232      mvaddstr_and_log_it (g_currentY++, 74, "Done.");
1233    }
1234  return (retval);
1235}
1236
1237/**
1238 * Retrieve the line containing @p label from the config file.
1239 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1240 * @param label What to read from the file.
1241 * @param value Where to put it.
1242 * @return 0 for success, 1 for failure.
1243 */
1244int
1245read_cfg_var (char *config_file, char *label, char *value)
1246{
1247    /*@ buffer *******************************************************/
1248  char command[MAX_STR_LEN*2];
1249  char tmp[MAX_STR_LEN];
1250
1251    /*@ end vars ****************************************************/
1252
1253  assert_string_is_neither_NULL_nor_zerolength(config_file);
1254  assert_string_is_neither_NULL_nor_zerolength(label);
1255  if (!does_file_exist (config_file))
1256    {
1257      sprintf (tmp, "(read_cfg_var) Cannot find %s config file", config_file);
1258      log_to_screen (tmp);
1259      value[0] = '\0';
1260      return (1);
1261    }
1262  else if (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))
1263    {
1264      log_msg (2, "FYI, I shan't read new value for %s - already got %s", label, value);
1265      return(0);
1266    }
1267  else
1268    {
1269      sprintf (command, "cat %s | grep \"%s .*\" | cut -d' ' -f2,3,4,5",
1270           config_file, label);
1271      strcpy (value, call_program_and_get_last_line_of_output (command));
1272      if (strlen (value) == 0)
1273    {
1274      return (1);
1275    }
1276      else
1277    {
1278      return (0);
1279    }
1280    }
1281}
1282
1283
1284
1285/**
1286 * Remount @c supermount if it was unmounted earlier.
1287 */
1288void remount_supermounts_if_necessary()
1289{
1290  if (g_remount_cdrom_at_end)
1291    {
1292      run_program_and_log_output ("mount "MNT_CDROM, FALSE);
1293    }
1294  if (g_remount_floppy_at_end)
1295    {
1296      run_program_and_log_output ("mount "MNT_FLOPPY, FALSE);
1297    }
1298}
1299
1300/**
1301 * Unmount @c supermount if it's mounted.
1302 */
1303void unmount_supermounts_if_necessary()
1304{
1305  if (run_program_and_log_output ("mount | grep cdrom | grep super", FALSE) == 0)
1306    {
1307      g_remount_cdrom_at_end = TRUE;
1308      run_program_and_log_output ("umount "MNT_CDROM, FALSE);
1309    }
1310  if (run_program_and_log_output ("mount | grep floppy | grep super", FALSE) == 0)
1311    {
1312      g_remount_floppy_at_end = TRUE;
1313      run_program_and_log_output ("umount "MNT_FLOPPY, FALSE);
1314    }
1315}
1316
1317/**
1318 * Whether we had to stop autofs (if so, restart it at end).
1319 */
1320bool g_autofs_stopped=FALSE;
1321
1322/**
1323 * Path to the autofs initscript ("" if none exists).
1324 */
1325char g_autofs_exe[MAX_STR_LEN];
1326
1327/**
1328 * Autofs initscript in Xandros Linux distribution.
1329 */
1330#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1331
1332/**
1333 * Autofs initscript in most Linux distributions.
1334 */
1335#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1336
1337/**
1338 * If autofs is mounted, stop it (restart at end).
1339 */
1340void stop_autofs_if_necessary()
1341{
1342  char tmp[MAX_STR_LEN];
1343 
1344  g_autofs_exe[0] = '\0';
1345  if (does_file_exist(XANDROS_AUTOFS_FNAME))
1346    { strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME); } 
1347  else if (does_file_exist(STOCK_AUTOFS_FNAME))
1348    { strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME); }
1349   
1350  if (!g_autofs_exe[0]) { log_msg(3, "No autofs detected."); } 
1351  else
1352    {
1353      log_msg(3, "%s --- autofs detected", g_autofs_exe);
1354// FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1355      sprintf(tmp, "%s stop", g_autofs_exe);
1356      if (run_program_and_log_output(tmp, 2))
1357        { log_it("Failed to stop autofs - I assume it wasn't running"); }
1358      else
1359        { g_autofs_stopped = TRUE; log_it("Stopped autofs OK"); }
1360    }
1361}
1362
1363/**
1364 * If autofs was stopped earlier, restart it.
1365 */
1366void restart_autofs_if_necessary()
1367{
1368  char tmp[MAX_STR_LEN];
1369 
1370  if (!g_autofs_stopped || !g_autofs_exe[0]) { log_msg(3, "No autofs detected."); return; } 
1371  sprintf(tmp, "%s start", g_autofs_exe);
1372  if (run_program_and_log_output(tmp, 2))
1373    { log_it("Failed to start autofs"); }
1374  else
1375    { g_autofs_stopped = FALSE; log_it("Started autofs OK"); }
1376}
1377
1378
1379/**
1380 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1381 */
1382void mount_boot_if_necessary()
1383{
1384  char tmp[MAX_STR_LEN];
1385  char command[MAX_STR_LEN];
1386
1387  log_msg(1, "Started sub");
1388  log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1389  g_boot_mountpt[0] = '\0';
1390  log_msg(4, "Done. Great. Seeting command to something");
1391  strcpy(command, "cat /etc/fstab | grep -v \":\" | grep -vx \"#.*\" | grep -w \"/boot\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1392  log_msg(4, "Cool. Command = '%s'", command);
1393  strcpy(tmp, call_program_and_get_last_line_of_output(command));
1394  log_msg(4, "tmp = '%s'", tmp);
1395  if (tmp[0])
1396    {
1397      log_it("/boot is at %s according to /etc/fstab", tmp);
1398      if (strstr(tmp, "LABEL="))
1399        {
1400      if (!run_program_and_log_output("mount /boot", 5))
1401        {
1402          strcpy(g_boot_mountpt, "/boot");
1403          log_msg(1, "Mounted /boot");
1404        }
1405      else
1406        {
1407          log_it("...ignored cos it's a label :-)"); 
1408        }
1409    }
1410      else
1411        {
1412          sprintf(command, "mount | grep -w \"%s\"", tmp);
1413          log_msg(3, "command = %s", command);
1414          if (run_program_and_log_output(command, 5))
1415            {
1416          strcpy(g_boot_mountpt, tmp);
1417              sprintf(tmp, "%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1418          log_it(tmp);
1419          sprintf(tmp, "mount %s", g_boot_mountpt);
1420          if (run_program_and_log_output(tmp, 5))
1421        { 
1422          g_boot_mountpt[0] = '\0';
1423          log_msg(1, "Plan B");
1424          if (!run_program_and_log_output("mount /boot", 5))
1425            {
1426              strcpy(g_boot_mountpt, "/boot");
1427              log_msg(1, "Plan B worked");
1428            }
1429          else
1430            {
1431              log_msg(1, "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1432            }
1433        }
1434            }
1435        }
1436    }
1437  log_msg(1, "Ended sub");
1438}
1439
1440
1441/**
1442 * If we mounted /boot earlier, unmount it.
1443 */
1444void unmount_boot_if_necessary()
1445{
1446  char tmp[MAX_STR_LEN];
1447
1448  log_msg(3, "starting");
1449  if (g_boot_mountpt[0])
1450    {
1451      sprintf(tmp, "umount %s", g_boot_mountpt);
1452      if (run_program_and_log_output(tmp, 5))
1453    { log_it("WARNING - unable to unmount /boot"); }
1454    }
1455   log_msg(3, "leaving");
1456}
1457
1458
1459
1460/**
1461 * Write a line to a configuration file. Writes a line of the form,
1462 * @c label @c value.
1463 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1464 * @param label What to call this bit of data you're writing.
1465 * @param value The bit of data you're writing.
1466 * @return 0 for success, 1 for failure.
1467 */
1468int
1469write_cfg_var (char *config_file, char *label, char *value)
1470{
1471    /*@ buffers ******************************************************/
1472  char command[MAX_STR_LEN*2];
1473  char tempfile[MAX_STR_LEN];
1474  char tmp[MAX_STR_LEN];
1475
1476
1477    /*@ end vars ****************************************************/
1478  assert_string_is_neither_NULL_nor_zerolength(config_file);
1479  assert_string_is_neither_NULL_nor_zerolength(label);
1480  assert(value!=NULL);
1481  if (!does_file_exist (config_file))
1482    {
1483      sprintf (tmp, "(write_cfg_file) Cannot find %s config file",
1484           config_file);
1485      log_to_screen (tmp);
1486      return(1);
1487    }
1488  strcpy (tempfile,
1489      call_program_and_get_last_line_of_output
1490      ("mktemp -q /tmp/mojo-jojo.blah.XXXXXX"));
1491  if (does_file_exist (config_file))
1492    {
1493      sprintf (command, "cat %s | grep -vx \"%s .*\" > %s", config_file,
1494           label, tempfile);
1495      paranoid_system (command);
1496    }
1497  sprintf (command, "echo \"%s %s\" >> %s", label, value, tempfile);
1498  paranoid_system (command);
1499  sprintf (command, "mv -f %s %s", tempfile, config_file);
1500  paranoid_system (command);
1501  unlink (tempfile);
1502  return (0);
1503}
1504
1505
1506/**
1507 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1508 * information to the logfile.
1509 */
1510void standard_log_debug_msg(int debug_level, const char *szFile,
1511                const char *szFunction, int nLine, const char *fmt, ...)
1512{
1513  va_list args;
1514  int i;
1515  static int depth=0; 
1516  char *tmp;
1517  FILE*fout;
1518
1519  if (depth>5) { depth--; return; }
1520  depth++;
1521
1522  malloc_string(tmp);
1523
1524  if (debug_level <= g_loglevel)
1525    {
1526      va_start(args, fmt);
1527      if (!(fout = fopen (MONDO_LOGFILE, "a")))
1528    { return; } // fatal_error("Failed to openout to logfile - sheesh..."); }
1529
1530      // add tabs to distinguish log levels
1531      if (debug_level > 0)
1532    {
1533      for (i = 1; i < debug_level; i++)
1534        fprintf(fout, "\t");
1535      if (getpid() == g_main_pid)
1536        fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1537      else if (getpid() == g_buffer_pid && g_buffer_pid>0)
1538        fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1539      else
1540        fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1541    }
1542      vfprintf(fout, fmt, args);
1543
1544    // do not slow down the progran if standard debug level
1545    // must be enabled: if no flush, the log won't be up-to-date if there
1546    // is a segfault
1547    //if (g_dwDebugLevel != 1)
1548
1549      va_end(args);
1550      fprintf(fout, "\n");
1551      paranoid_fclose(fout);
1552    }
1553  depth--;
1554  paranoid_free(tmp);
1555}
1556
1557/**
1558 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1559 */
1560void (*log_debug_msg) (int, const char *, const char *, int, const char *, ...) = standard_log_debug_msg;
1561
1562
1563/**
1564 * If @p y, malloc @p x, else free @p x.
1565 * @bug This function seems orphaned. Please remove.
1566 */
1567#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1568
1569/**
1570 * Allocate or free important globals, depending on @p mal.
1571 * @param mal If TRUE, malloc; if FALSE, free.
1572 */
1573void do_libmondo_global_strings_thing(int mal)
1574{
1575  if (mal)
1576    {
1577      iamhere("Malloc'ing globals");
1578      malloc_string(g_boot_mountpt);
1579      malloc_string(g_mondo_home);
1580      malloc_string(g_tmpfs_mountpt);
1581      malloc_string(g_erase_tmpdir_and_scratchdir);
1582      malloc_string(g_serial_string);
1583      malloc_string(g_magicdev_command);
1584    }
1585  else
1586    {
1587      iamhere("Freeing globals");
1588      paranoid_free(g_boot_mountpt);
1589      paranoid_free(g_mondo_home);
1590      paranoid_free(g_tmpfs_mountpt);
1591      paranoid_free(g_erase_tmpdir_and_scratchdir);
1592      paranoid_free(g_serial_string);
1593      paranoid_free(g_magicdev_command);
1594    }
1595
1596  /*
1597  char**list_of_arrays[] = {
1598    &g_boot_mountpt,
1599    &g_mondo_home,
1600    &g_tmpfs_mountpt,
1601    &g_erase_tmpdir_and_scratchdir,
1602    &g_serial_string,
1603    &g_magicdev_command,
1604    NULL};
1605
1606  char**ppcurr;
1607  int i;
1608 
1609  for(i=0;list_of_arrays[i];i++)
1610    {
1611      log_msg(5, "Allocating %d", i);
1612      ppcurr = list_of_arrays[i];
1613      if (mal)
1614        { *ppcurr = malloc(MAX_STR_LEN); }
1615      else
1616        {
1617      if (*ppcurr)
1618        {
1619          free(*ppcurr);
1620        }
1621    }
1622    }
1623  log_msg(5, "Returning");
1624  */
1625}
1626
1627/**
1628 * Allocate important globals.
1629 * @see do_libmondo_global_strings_thing
1630 */
1631void malloc_libmondo_global_strings(void)
1632{
1633  do_libmondo_global_strings_thing(1);
1634}
1635
1636/**
1637 * Free important globals.
1638 * @see do_libmondo_global_strings_thing
1639 */
1640void free_libmondo_global_strings(void)
1641{
1642  do_libmondo_global_strings_thing(0);
1643}
1644
1645
1646
1647/**
1648 * Stop @c magicdev if it's running.
1649 * The command used to start it is saved in @p g_magicdev_command.
1650 */
1651void stop_magicdev_if_necessary()
1652{
1653  strcpy(g_magicdev_command, call_program_and_get_last_line_of_output("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1654  if (g_magicdev_command[0])
1655    {
1656      log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1657      paranoid_system("killall magicdev");
1658    }
1659}
1660
1661
1662/**
1663 * Restart magicdev if it was stopped.
1664 */
1665void restart_magicdev_if_necessary()
1666{
1667  char *tmp;
1668 
1669  malloc_string(tmp);
1670  if (g_magicdev_command && g_magicdev_command[0])
1671    {
1672      sprintf(tmp, "%s &", g_magicdev_command);
1673      paranoid_system(tmp);
1674    }
1675  paranoid_free(tmp);
1676}
1677
1678/* @} - end of utilityGroup */
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