source: branches/2.2.4/mondo/src/common/libmondo-tools.c @ 1375

Last change on this file since 1375 was 1375, checked in by Bruno Cornec, 13 years ago
  • ARCH removed from configure.in as useless
  • addition of get_uname_m (to give the underlying arch)
  • get_architecture now returns correctly the built arch used (including x86_64)
  • IA32 is defined for both i386 and x86_64. An additional vdefine X86_64 is also setup for tha later arch.
  • Property svn:keywords set to Id
File size: 45.2 KB
Line 
1/* libmondo-tools.c                                  misc tools
2   $Id: libmondo-tools.c 1375 2007-04-30 09:18:15Z bruno $
3.
4
5
606/28
7- abort if RAID partitions found but /etc/raidtab not found
8
906/25
10- don't insist on ms-sys; recommend it
11- don't fatal_error if can't open log file
12
1306/14
14- call mindi -V before calling mindi --makemountlist
15
1604/09
17- lots of malloc'd char*'s instead of char[]'s in post_param_config'n
18
1904/02
20- better sanity-checking, re: /etc/modules.conf
21
2202/15
23- abort if Windows dir but no ms-sys or parted
24
2502/08
26- missing ramdisk/initrd support is nonfatal now (but stupid)
27
2801/16
29- added g_kernel_version and get_kernel_version()
30
3101/08/2004
32- fixed /boot mounter thingy
33
3411/14/2003
35- if <50MB free in /root, softlink /root/images/mindi to
36  /home/root/images/mindi as a workaround
37
3810/23
39- streaming backups now generate 4MB sets; CDs, 8MB sets
40
4110/21
42- better at finding your /boot in order to mount it, if nec.
43- link /etc/modules.conf to /etc/conf.modules if former
44  is missing but latter is not
45- changed "/mnt/cdrom" to MNT_CDROM
46- changed "/mnt/floppy" to MNT_FLOPPY
47
4810/13
49- added stop_magicdev_if_necessary()
50- added restart_magicdev_if_necessary()
51
5210/02
53- don't eject if bkpinfo->please_dont_eject is TRUE
54
5509/28
56- fixed segfault in mount_..._necessary
57
5809/26
59- ask for cmp (or create workaround if possible)
60
6109/25
62- add DVD support
63
6409/24
65- don't overwrite existing media-dev value in bkpinfo IF it's
66  a tape device AND it's already populated by /dev/{something}
67  ...This helps w/ weird tape drives
68
6909/23
70- malloc/free global strings in new subroutines - malloc_libmondo_global_strings()
71  and free_libmondo_global_strings() - which are in libmondo-tools.c
72
7309/18
74- added stop_autofs_if_necessary() and restart_autofs_if_necessary()
75
7609/13
77- added log_debug_msg()
78- turned log_it() into a macro
79
8009/10
81- reduced PPCFG_RAMDISK to 150m (was 200m)
82- max set size is now 8MB (was 6)
83- added 'buffer' to requisite tools
84
8508/29
86- typical set size is now 5MB
87   
8807/22
89- increased PPCFG* to 200m
90
9105/07
92- changed grep -m1 to grep | head -n1 for Debian users
93- pre_param_...() also mkdir -p /mnt/cdrom, just in case
94
9505/05
96- cleaner logging of call to dd if=<tape> of=/dev/null
97- added Joshua Oreman's FreeBSD patches
98
9905/04
100- added Herman Kuster's multi-level bkp patch
101
10205/02
103- log_it() --- "Message repeated N times" (if it was)
104
10504/24
106- added lots of assert()'s and log_OS_error()'s
107- reset_bkpinfop() --- reset all media_size[] array
108- increased tmpfs ramdisk to size=100m
109
11004/22
111- post_param_configuration() --- store iso-dev and isodir
112
11304/05
114- re-enable tmpfs ramdisk/mountpt _but_ make sure size=80m
115- in post_param_configuration(), use cdrecord in preference
116  to dvdrecord now
117
11803/27
119- disabled tmpfs ramdisk/mountpt
120
12101/02/2003
122- bkpinfo->makefilelist = TRUE
123
12412/10/2002
125- added g_loglevel
126- fixed minor bug in clean_up_KDE_desktop_if_necessary()
127- log versions of newt, slang, ncurses
128- isodir defaults to / if disaster recovery
129
13011/28
131- unmount all CD devices at start
132- added clean_up_KDE_desktop_if_necessary()
133
13411/20
135- don't use lilo.conf.anaconda; abort instead
136- mount/unmount /boot partition for Gentoo 1.2 users
137
13811/13
139- call mindi --makemountlist as part of testing sanity of distro
140
14111/08
142- added a couple of chmod 700's (one for scratchdir, one for tmpdir)
143  to post_param_configuration()
144
14510/01 - 10/31
146- added checking of / and /root's free space to some_basic_sanity_checks()
147- moved some subroutines here from common/libmondo-archive
148
14909/01 - 09/30
150- don't write log_it()'s string to stdout, even if text mode
151- tell user the kernel is bad if it has no ramdisk support but allow
152  it if they want to use the failsafe kernel for booting
153- run_program_and_log_output() now takes boolean operator to specify
154  whether it will log its activities in the event of _success_
155- if mkfs.vfat not found but mkfs.msdos found then create a softlink
156  from the former to the latter
157
15808/01 - 08/31
159- if /etc/lilo.conf not found not /etc/lilo.conf.anaconda found
160  then create a softlink from the former to the latter, to work
161  around RH7.3's b0rken LILO support
162- handle unknown media size
163
16407/27
165- created
166*/
167
168
169/**
170 * @file
171 * Miscellaneous tools that didn't really fit anywhere else.
172 */
173
174#include "my-stuff.h"
175#include "mondostructures.h"
176#include "lib-common-externs.h"
177#include "libmondo-tools.h"
178#include "libmondo-gui-EXT.h"
179#include "libmondo-files-EXT.h"
180#include "libmondo-fork-EXT.h"
181#include "libmondo-raid-EXT.h"
182#include <sys/socket.h>
183#include <netdb.h>
184#include <netinet/in.h>
185#include <arpa/inet.h>
186#include <sys/utsname.h>
187
188/*@unused@*/
189//static char cvsid[] = "$Id: libmondo-tools.c 1375 2007-04-30 09:18:15Z bruno $";
190
191extern int g_tape_buffer_size_MB;
192extern char *g_erase_tmpdir_and_scratchdir;
193extern char *g_serial_string;
194extern bool g_text_mode;
195extern int g_currentY;
196extern int g_current_media_number;
197extern char *MONDO_LOGFILE;
198
199/**
200 * @addtogroup globalGroup
201 * @{
202 */
203bool g_remount_cdrom_at_end,    ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
204 g_remount_floppy_at_end;       ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
205bool g_cd_recovery;             ///< TRUE if we're making an "autonuke" backup.
206double g_kernel_version;
207
208/**
209 * The place where /boot is mounted.
210 */
211char *g_boot_mountpt = NULL;
212
213/**
214 * The location of Mondo's home directory.
215 */
216char *g_mondo_home = NULL;
217
218/**
219 * The serial string (used to differentiate between backups) of the current backup.
220 */
221char *g_serial_string = NULL;
222
223/**
224 * The location where tmpfs is mounted, or "" if it's not mounted.
225 */
226char *g_tmpfs_mountpt = NULL;
227char *g_magicdev_command = NULL;
228
229/**
230 * The default maximum level to log messages at or below.
231 */
232int g_loglevel = DEFAULT_DEBUG_LEVEL;
233
234/* @} - end of globalGroup */
235
236
237extern pid_t g_buffer_pid;
238extern pid_t g_main_pid;
239
240extern t_bkptype g_backup_media_type;
241
242extern bool am_I_in_disaster_recovery_mode(void);
243
244
245/**
246 * @addtogroup utilityGroup
247 * @{
248 */
249/**
250 * Assertion handler. Prints a friendly message to the user,
251 * offering to ignore all, dump core, break to debugger,
252 * exit, or ignore. Intended to be used with an assert() macro.
253 *
254 * @param file The file in which the assertion triggered.
255 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
256 * @param line The line number of the assert() statement.
257 * @param exp The expression that failed (as a string).
258 */
259void _mondo_assert_fail(const char *file,
260                        const char *function, int line, 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,
266           function);
267    if (ignoring_assertions) {
268        log_it("Well, the user doesn't care...");
269        return;
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 $3"); // break to debugger
291#endif
292            break;
293        case 'E':               // (E)xit
294            fatal_error("Failed assertion -- see above for details");
295            break;              /* "can't get here" */
296        case 'I':               // (I)gnore
297            break;
298            /* These next two work as follows:
299               the `default' catches the user's invalid choice and says so;
300               the '\n' catches the newline on the end and prints the prompt again.
301             */
302        case '\n':
303            printf
304                ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
305            break;
306        default:
307            is_valid = FALSE;
308            printf("Invalid choice.\n");
309            break;
310        }
311    } while (!is_valid);
312
313    if (ignoring_assertions) {
314        log_it("Ignoring ALL assertions from now on.");
315    } else {
316        log_it("Ignoring assertion: %s", exp);
317    }
318
319    getchar();                  // skip \n
320
321#ifndef _XWIN
322    if (!g_text_mode)
323        newtResume();
324#endif
325}
326
327/**
328 * Clean's up users' KDE desktops.
329 * @bug Details about this function are unknown.
330 */
331void clean_up_KDE_desktop_if_necessary(void)
332{
333    char *tmp;
334
335    malloc_string(tmp);
336    strcpy(tmp,
337           "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
338file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
339awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
340else { print $0;};}' $file.old  > $file ; fi ; done");
341    run_program_and_log_output(tmp, 5);
342    paranoid_free(tmp);
343}
344
345
346/**
347 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
348 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
349 *
350 * @param home_sz String to store the home directory ("" if it could not be found).
351 * @return 0 for success, nonzero for failure.
352 */
353int find_and_store_mondoarchives_home(char *home_sz)
354{
355    assert(home_sz != NULL);
356    strcpy(home_sz, MONDO_SHARE);
357    return (0);
358}
359
360
361char *get_architecture(void) {
362#ifdef __IA32__
363#   ifdef __X86_64__
364        return ("x86_64");
365#   else
366        return ("i386");
367#   endif
368#endif
369#ifdef __IA64__
370    return ("ia64");
371#endif
372    return ("unknown");
373}
374
375
376char *get_uname_m(void) {
377
378    struct utsname utsn;
379    char *tmp = NULL;
380
381    uname(&utsn);
382    mr_asprintf(&tmp, utsn.machine);
383    return (tmp);
384}
385
386
387
388double get_kernel_version(void)
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        p = strchr(++p, '.');
400        if (p) {
401            while (*p) {
402                *p = *(p + 1);
403                p++;
404            }
405        }
406    }
407//  log_msg(1, "tmp = '%s'", tmp);
408    d = atof(tmp);
409#endif
410    log_msg(1, "g_kernel_version = %f", d);
411    return (d);
412}
413
414
415
416
417
418/**
419 * Get the current time.
420 * @return number of seconds since the epoch.
421 */
422long get_time()
423{
424    return (long) time((void *) 0);
425}
426
427
428
429
430
431
432
433/**
434 * Initialize a RAID volume structure, setting fields to zero. The
435 * actual hard drive is unaffected.
436 *
437 * @param raidrec The RAID volume structure to initialize.
438 * @note This function is system dependent.
439 */
440#ifdef __FreeBSD__
441void initialize_raidrec(struct vinum_volume *raidrec)
442{
443    int i, j;
444    raidrec->volname[0] = '\0';
445    raidrec->plexes = 0;
446    for (i = 0; i < 9; ++i) {
447        raidrec->plex[i].raidlevel = -1;
448        raidrec->plex[i].stripesize = 0;
449        raidrec->plex[i].subdisks = 0;
450        for (j = 0; j < 9; ++j) {
451            strcpy(raidrec->plex[i].sd[j].which_device, "");
452        }
453    }
454}
455#else
456void initialize_raidrec(struct raid_device_record *raidrec)
457{
458    assert(raidrec != NULL);
459    raidrec->raid_device[0] = '\0';
460    raidrec->raid_level = -9;
461    raidrec->persistent_superblock = 1;
462    raidrec->chunk_size = 64;
463    raidrec->parity = -1;
464    raidrec->data_disks.entries = 0;
465    raidrec->spare_disks.entries = 0;
466    raidrec->parity_disks.entries = 0;
467    raidrec->failed_disks.entries = 0;
468    raidrec->additional_vars.entries = 0;
469}
470#endif
471
472
473
474
475/**
476 * Insert modules that Mondo requires.
477 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
478 * @c msdosfs and @c ext2fs for FreeBSD.
479 */
480void insmod_crucial_modules(void)
481{
482#ifdef __FreeBSD__
483    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
484    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
485#else
486    system("modprobe -a msdos vfat loop &> /dev/null");
487#endif
488}
489
490
491/**
492 * Log a trace message to the trace file.
493 * @bug This function seems orphaned. Please remove.
494 */
495void log_trace(char *o)
496{
497    /*@ pointers **************************************************** */
498    FILE *fout;
499
500    /*@ buffers ***************************************************** */
501    char output[MAX_STR_LEN];
502
503    /*@ int    ****************************************************** */
504    int i;
505
506    /*@ end vars *************************************************** */
507
508    if (o[0] == '\0') {
509        return;
510    }
511    strcpy(output, o);
512    i = (int) strlen(output);
513    if (i <= 0) {
514        return;
515    }
516    if (output[i - 1] < 32) {
517        output[i - 1] = '\0';
518    }
519    if (g_text_mode
520        /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
521        printf("%s\n", output);
522    }
523
524    fout = fopen(MONDO_TRACEFILE, "a");
525    if (fout) {
526        fprintf(fout, "%s\n", output);
527        paranoid_fclose(fout);
528    } else {
529        log_OS_error("Cannot write to tracefile");
530    }
531}
532
533
534
535
536
537/**
538 * Finish configuring the backup information structure. Call this function
539 * to set the parameters that depend on those that can be given on the command
540 * line.
541 *
542 * @param bkpinfo The backup information structure. Fields modified/used:
543 * - Used: @c bkpinfo->backup_data
544 * - Used: @c bkpinfo->backup_media_type
545 * - Used: @c bkpinfo->cdrw_speed
546 * - Used: @c bkpinfo->compression_level
547 * - Used: @c bkpinfo->include_paths
548 * - Used: @c bkpinfo->prefix
549 * - Used: @c bkpinfo->isodir
550 * - Used: @c bkpinfo->manual_cd_tray
551 * - Used: @c bkpinfo->make_cd_use_lilo
552 * - Used: @c bkpinfo->media_device
553 * - Used: @c bkpinfo->nfs_mount
554 * - Used: @c bkpinfo->nonbootable_backup
555 * - Used: @c bkpinfo->scratchdir
556 * - Used: @c bkpinfo->tmpdir
557 * - Used: @c bkpinfo->use_lzo
558 * - Modified: @c bkpinfo->call_before_iso
559 * - Modified: @c bkpinfo->call_make_iso
560 * - Modified: @c bkpinfo->optimal_set_size
561 * - Modified: @c bkpinfo->zip_exe
562 * - Modified: @c bkpinfo->zip_suffix
563 *
564 * @return number of errors, or 0 for success.
565 * @note Also creates directories that are specified in the @c bkpinfo structure but
566 * do not exist.
567 */
568int post_param_configuration(struct s_bkpinfo *bkpinfo)
569{
570    char *extra_cdrom_params;
571    char *mondo_mkisofs_sz;
572    char *command;
573    char *mtpt;
574    char *hostname, *ip_address;
575    int retval = 0;
576    long avm = 0;
577    char *colon;
578    char *cdr_exe;
579    char *tmp;
580    char call_before_iso_user[MAX_STR_LEN] = "\0";
581    int rdsiz_MB;
582    char *iso_dev;
583    char *iso_mnt;
584    char *iso_tmp;
585    char *iso_path;
586
587    assert(bkpinfo != NULL);
588    malloc_string(extra_cdrom_params);
589    malloc_string(mondo_mkisofs_sz);
590    malloc_string(command);
591    malloc_string(mtpt);
592    malloc_string(hostname);
593    malloc_string(ip_address);
594    malloc_string(cdr_exe);
595    malloc_string(tmp);
596    malloc_string(iso_dev);
597    malloc_string(iso_mnt);
598    malloc_string(iso_tmp);
599    malloc_string(iso_path);
600    bkpinfo->optimal_set_size =
601        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
602        1024;
603
604    log_msg(1, "Foo");
605    if (bkpinfo->backup_media_type == tape) {
606        log_msg(1, "Bar");
607        sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
608        log_msg(1, "tmp = '%s'", tmp);
609        if (run_program_and_log_output(tmp, 3)) {
610            fatal_error
611                ("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.");
612        }
613    }
614    make_hole_for_dir(bkpinfo->scratchdir);
615    make_hole_for_dir(bkpinfo->tmpdir);
616    if (bkpinfo->backup_media_type == iso)
617        make_hole_for_dir(bkpinfo->isodir);
618
619    run_program_and_log_output("uname -a", 5);
620    run_program_and_log_output("cat /etc/*-release", 5);
621    run_program_and_log_output("cat /etc/*issue*", 5);
622    sprintf(g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
623    sprintf(command, "mkdir -p %s", g_tmpfs_mountpt);
624    paranoid_system(command);
625    rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
626#ifdef __FreeBSD__
627    strcpy(tmp,
628           call_program_and_get_last_line_of_output
629           ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
630    avm += atol(tmp);
631    strcpy(tmp,
632           call_program_and_get_last_line_of_output
633           ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
634    avm += atol(tmp);
635    sprintf(command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
636            g_tmpfs_mountpt);
637#else
638    strcpy(tmp,
639           call_program_and_get_last_line_of_output
640           ("free | grep ':' | tr -s ' ' '\t' | cut -f2 | head -n1"));
641    avm += atol(tmp);
642    sprintf(command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
643            g_tmpfs_mountpt, rdsiz_MB, 'm');
644    run_program_and_log_output("cat /proc/cpuinfo", 5);
645    run_program_and_log_output
646        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
647         5);
648#endif
649    if (avm / 1024 > rdsiz_MB * 3) {
650        if (run_program_and_log_output(command, 5)) {
651            g_tmpfs_mountpt[0] = '\0';
652            log_it("Failed to mount tmpfs");
653        } else {
654            log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
655        }
656    } else {
657        g_tmpfs_mountpt[0] = '\0';
658        log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
659    }
660
661    if (bkpinfo->use_lzo) {
662        strcpy(bkpinfo->zip_exe, "lzop");
663        strcpy(bkpinfo->zip_suffix, "lzo");
664    } else if (bkpinfo->use_gzip) {
665        strcpy(bkpinfo->zip_exe, "gzip");
666        strcpy(bkpinfo->zip_suffix, "gz");
667    } else if (bkpinfo->compression_level != 0) {
668        strcpy(bkpinfo->zip_exe, "bzip2");
669        strcpy(bkpinfo->zip_suffix, "bz2");
670    } else {
671        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
672    }
673
674// DVD
675
676    if (bkpinfo->backup_media_type == dvd) {
677        extra_cdrom_params[0] = '\0';
678        mondo_mkisofs_sz[0] = '\0';
679        if (find_home_of_exe("growisofs")) {
680            strcpy(cdr_exe, "growisofs");
681        }                       // unlikely to be used
682        else {
683            fatal_error("Please install growisofs.");
684        }
685        if (bkpinfo->nonbootable_backup) {
686            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
687        } else if
688#ifdef __FreeBSD__
689            (TRUE)
690#else
691            (bkpinfo->make_cd_use_lilo)
692#endif
693#ifdef __IA64__
694    {
695        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
696    }
697#else
698    {
699        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
700    }
701#endif
702        else
703        {
704            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
705        }
706        if (bkpinfo->manual_cd_tray) {
707            fatal_error("Manual CD tray + DVD not supported yet.");
708            // -m isn't supported by growisofs, BTW...
709        } else {
710            sprintf(bkpinfo->call_make_iso,
711                    "%s %s -Z %s . 2>> _ERR_",
712                    mondo_mkisofs_sz,
713                    extra_cdrom_params, bkpinfo->media_device);
714        }
715        if (getenv ("SUDO_COMMAND")) {
716            sprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
717            if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
718                popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
719                fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
720            }       
721        }
722        log_msg(2, "call_make_iso (DVD res) is ... %s",
723                bkpinfo->call_make_iso);
724    }                           // end of DVD code
725
726// CD-R or CD-RW
727    if (bkpinfo->backup_media_type == cdrw
728        || bkpinfo->backup_media_type == cdr) {
729        extra_cdrom_params[0] = '\0';
730        if (!bkpinfo->manual_cd_tray) {
731            strcat(extra_cdrom_params, "-waiti ");
732        }
733        if (bkpinfo->backup_media_type == cdrw) {
734            strcat(extra_cdrom_params, "blank=fast ");
735        }
736        if (find_home_of_exe("cdrecord")) {
737            strcpy(cdr_exe, "cdrecord");
738        } else if (find_home_of_exe("dvdrecord")) {
739            strcpy(cdr_exe, "dvdrecord");
740        } else {
741            fatal_error("Please install either cdrecord or dvdrecord.");
742        }
743        if (bkpinfo->nonbootable_backup) {
744            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
745        } else if
746#ifdef __FreeBSD__
747            (TRUE)
748#else
749            (bkpinfo->make_cd_use_lilo)
750#endif
751#ifdef __IA64__
752    {
753        strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
754    }
755#else
756    {
757        strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
758    }
759#endif
760        else
761        {
762            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
763        }
764        if (bkpinfo->manual_cd_tray) {
765            if (bkpinfo->call_before_iso[0] == '\0') {
766            sprintf(bkpinfo->call_before_iso,
767                        "%s -o %s/temporary.iso . 2>> _ERR_",
768                        mondo_mkisofs_sz, bkpinfo->tmpdir);
769                } else {
770                strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
771                sprintf (bkpinfo->call_before_iso,
772                                    "( %s -o %s/temporary.iso . 2>> _ERR_ ; %s )",
773                        mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
774            }
775            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
776            sprintf(bkpinfo->call_make_iso,
777                    "%s %s -v %s fs=4m dev=%s speed=%d %s/temporary.iso",
778                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
779                    extra_cdrom_params, bkpinfo->media_device,
780                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
781        } else {
782            sprintf(bkpinfo->call_make_iso,
783                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
784                    mondo_mkisofs_sz, cdr_exe,
785                    (bkpinfo->please_dont_eject) ? " " : "-eject",
786                    extra_cdrom_params, bkpinfo->media_device,
787                    bkpinfo->cdrw_speed);
788        }
789    }                           // end of CD code
790
791    /*
792       if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
793       {
794       sprintf (tmp,
795       "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
796       bkpinfo->media_device, bkpinfo->internal_tape_block_size);
797       if (system(tmp))
798       {
799       retval++;
800       fprintf (stderr,
801       "Cannot write to tape device. Is the tape set read-only?\n");
802       }
803       } // end of tape code
804     */
805
806
807    if (bkpinfo->backup_media_type == iso) {
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 -P %s | tail -n1 | cut -d' ' -f1",
818                bkpinfo->isodir);
819        log_it("command = %s", command);
820        log_it("res of it = %s",
821               call_program_and_get_last_line_of_output(command));
822        sprintf(iso_dev, "%s",
823                call_program_and_get_last_line_of_output(command));
824        sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
825        write_one_liner_data_file(tmp,
826                                  call_program_and_get_last_line_of_output
827                                  (command));
828
829        sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
830                iso_dev);
831        log_it("command = %s", command);
832        log_it("res of it = %s",
833               call_program_and_get_last_line_of_output(command));
834        sprintf(iso_mnt, "%s",
835                call_program_and_get_last_line_of_output(command));
836        sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
837        write_one_liner_data_file(tmp,
838                                  call_program_and_get_last_line_of_output
839                                  (command));
840        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
841        sprintf(iso_tmp, "%s", bkpinfo->isodir);
842        if (strlen(iso_tmp) < strlen(iso_mnt)) {
843            iso_path[0] = '\0';
844        } else {
845            sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
846        }
847        sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
848        write_one_liner_data_file(tmp, iso_path);
849        log_it("isodir: %s", iso_path);
850        sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
851        write_one_liner_data_file(tmp, bkpinfo->prefix);
852        log_it("iso-prefix: %s",  bkpinfo->prefix);
853
854/* End patch */
855    }                           // end of iso code
856
857    if (bkpinfo->backup_media_type == nfs) {
858        strcpy(hostname, bkpinfo->nfs_mount);
859        colon = strchr(hostname, ':');
860        if (!colon) {
861            log_it("nfs mount doesn't have a colon in it");
862            retval++;
863        } else {
864            struct hostent *hent;
865
866            *colon = '\0';
867            hent = gethostbyname(hostname);
868            if (!hent) {
869                log_it("Can't resolve NFS mount (%s): %s", hostname,
870                       hstrerror(h_errno));
871                retval++;
872            } else {
873                strcpy(ip_address, inet_ntoa
874                       ((struct in_addr)
875                        *((struct in_addr *) hent->h_addr)));
876                strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
877                strcpy(bkpinfo->nfs_mount, ip_address);
878            }
879        }
880        store_nfs_config(bkpinfo);
881    }
882
883    log_it("Finished processing incoming params");
884    if (retval) {
885        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
886    }
887    sprintf(tmp, "%s", MONDO_TMPISOS);  /* added #define 22 apr 2002 */
888    if (does_file_exist(tmp)) {
889        unlink(tmp);
890    }
891    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
892        log_it("tmpdir or scratchdir are blank/missing");
893        retval++;
894    }
895    if (bkpinfo->include_paths[0] == '\0') {
896        //      fatal_error ("Why no backup path?");
897        strcpy(bkpinfo->include_paths, "/");
898    }
899    chmod(bkpinfo->scratchdir, 0700);
900    chmod(bkpinfo->tmpdir, 0700);
901    g_backup_media_type = bkpinfo->backup_media_type;
902    paranoid_free(mtpt);
903    paranoid_free(extra_cdrom_params);
904    paranoid_free(mondo_mkisofs_sz);
905    paranoid_free(command);
906    paranoid_free(hostname);
907    paranoid_free(ip_address);
908    paranoid_free(cdr_exe);
909    paranoid_free(tmp);
910    paranoid_free(iso_dev);
911    paranoid_free(iso_mnt);
912    paranoid_free(iso_tmp);
913    paranoid_free(iso_path);
914    return (retval);
915}
916
917
918
919/**
920 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
921 * Seeds the random-number generator, loads important modules, checks the sanity
922 * of the user's Linux distribution, and deletes logfile.
923 * @param bkpinfo The backup information structure. Will be initialized.
924 * @return number of errors (0 for success)
925 */
926int pre_param_configuration(struct s_bkpinfo *bkpinfo)
927{
928    int res = 0;
929
930    make_hole_for_dir(MNT_CDROM);
931    assert(bkpinfo != NULL);
932    srandom((unsigned long) (time(NULL)));
933    insmod_crucial_modules();
934    reset_bkpinfo(bkpinfo);     // also sets defaults ('/'=backup path, 3=compression level)
935    if (bkpinfo->disaster_recovery) {
936        if (!does_nonMS_partition_exist()) {
937            fatal_error
938                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
939        }
940    }
941
942    unlink(MONDO_TRACEFILE);
943    run_program_and_log_output("rm -Rf /tmp/changed.files*", FALSE);
944    if (find_and_store_mondoarchives_home(g_mondo_home)) {
945        fprintf(stderr,
946                "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");
947        res++;
948        return (res);
949    }
950    res += some_basic_system_sanity_checks();
951    if (res) {
952        log_it("Your distribution did not pass Mondo's sanity test.");
953    }
954    g_current_media_number = 1;
955    bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
956    return (res);
957}
958
959
960
961
962/**
963 * Reset all fields of the backup information structure to a sensible default.
964 * @param bkpinfo The @c bkpinfo to reset.
965 */
966void reset_bkpinfo(struct s_bkpinfo *bkpinfo)
967{
968    int i;
969
970    log_msg(1, "Hi");
971    assert(bkpinfo != NULL);
972    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
973    bkpinfo->manual_cd_tray = FALSE;
974    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
975    bkpinfo->media_device[0] = '\0';
976    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
977        bkpinfo->media_size[i] = -1;
978    }
979    bkpinfo->boot_loader = '\0';
980    bkpinfo->boot_device[0] = '\0';
981    bkpinfo->zip_exe[0] = '\0';
982    bkpinfo->zip_suffix[0] = '\0';
983    bkpinfo->restore_path[0] = '\0';
984    bkpinfo->use_lzo = FALSE;
985    bkpinfo->use_gzip = FALSE;
986    bkpinfo->do_not_compress_these[0] = '\0';
987    bkpinfo->verify_data = FALSE;
988    bkpinfo->backup_data = FALSE;
989    bkpinfo->restore_data = FALSE;
990    bkpinfo->disaster_recovery =
991        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
992    if (bkpinfo->disaster_recovery) {
993        strcpy(bkpinfo->isodir, "/");
994    } else {
995        strcpy(bkpinfo->isodir, "/root/images/mondo");
996    }
997    strcpy(bkpinfo->prefix, STD_PREFIX);
998
999    bkpinfo->scratchdir[0] = '\0';
1000    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
1001    sprintf(bkpinfo->tmpdir, "/tmp/tmpfs/mondo.tmp.%d", (int) (random() % 32768));  // for mondorestore
1002    bkpinfo->optimal_set_size = 0;
1003    bkpinfo->backup_media_type = none;
1004    strcpy(bkpinfo->include_paths, "/");
1005    bkpinfo->exclude_paths[0] = '\0';
1006    bkpinfo->call_before_iso[0] = '\0';
1007    bkpinfo->call_make_iso[0] = '\0';
1008    bkpinfo->call_burn_iso[0] = '\0';
1009    bkpinfo->call_after_iso[0] = '\0';
1010    bkpinfo->image_devs[0] = '\0';
1011    bkpinfo->postnuke_tarball[0] = '\0';
1012    bkpinfo->kernel_path[0] = '\0';
1013    bkpinfo->nfs_mount[0] = '\0';
1014    bkpinfo->nfs_remote_dir[0] = '\0';
1015    bkpinfo->wipe_media_first = FALSE;
1016    bkpinfo->differential = FALSE;
1017    bkpinfo->cdrw_speed = 0;
1018// patch by Herman Kuster 
1019    bkpinfo->differential = 0;
1020// patch end
1021    bkpinfo->compression_level = 3;
1022}
1023
1024
1025
1026
1027/**
1028 * Get the remaining free space (in MB) on @p partition.
1029 * @param partition The partition to check free space on (either a device or a mountpoint).
1030 * @return The free space on @p partition, in MB.
1031 */
1032long free_space_on_given_partition(char *partition)
1033{
1034    char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
1035    long res;
1036
1037    assert_string_is_neither_NULL_nor_zerolength(partition);
1038
1039    sprintf(command, "df -m -P %s &> /dev/null", partition);
1040    if (system(command)) {
1041        return (-1);
1042    }                           // partition does not exist
1043    sprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
1044            partition);
1045    strcpy(out_sz, call_program_and_get_last_line_of_output(command));
1046    if (strlen(out_sz) == 0) {
1047        return (-1);
1048    }                           // error within df, probably
1049    res = atol(out_sz);
1050    return (res);
1051}
1052
1053
1054
1055/**
1056 * Check the user's system for sanity. Checks performed:
1057 * - make sure user has enough RAM (32mb required, 64mb recommended)
1058 * - make sure user has enough free space in @c /
1059 * - check kernel for ramdisk support
1060 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
1061 * - make sure CD-ROM is unmounted
1062 * - make sure /etc/modules.conf exists
1063 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
1064 *
1065 * @return number of problems with the user's setup (0 for success)
1066 */
1067int some_basic_system_sanity_checks()
1068{
1069
1070    /*@ buffers ************ */
1071    char tmp[MAX_STR_LEN];
1072    //  char command[MAX_STR_LEN];
1073
1074    /*@ int's *************** */
1075    int retval = 0;
1076    long Lres;
1077
1078
1079    mvaddstr_and_log_it(g_currentY, 0,
1080                        "Checking sanity of your Linux distribution");
1081#ifndef __FreeBSD__
1082    if (system("which mkfs.vfat &> /dev/null")
1083        && !system("which mkfs.msdos &> /dev/null")) {
1084        log_it
1085            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
1086        run_program_and_log_output
1087            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
1088    }
1089    strcpy(tmp,
1090           call_program_and_get_last_line_of_output
1091           ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
1092    if (atol(tmp) < 35000) {
1093        retval++;
1094        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
1095    }
1096    if (atol(tmp) < 66000) {
1097        log_to_screen
1098            ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
1099    }
1100#endif
1101
1102    if ((Lres = free_space_on_given_partition("/root")) == -1) {
1103        Lres = free_space_on_given_partition("/");
1104    }
1105    log_it("Free space on given partition = %ld MB", Lres);
1106
1107    if (Lres < 50) {
1108        run_program_and_log_output
1109            ("rm -Rf /root/images/mindi; mkdir -p /home/root/images/mindi; mkdir -p /root/images; ln -sf /home/root/images/mindi /root/images/mindi",
1110             3);
1111        //      fatal_error("Your / (or /root) partition has <50MB free. Please adjust your partition table to something saner.");
1112    }
1113
1114    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
1115        retval++;
1116        log_to_screen
1117            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
1118        fatal_error
1119            ("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. :)");
1120    }
1121#ifndef __FreeBSD__
1122    if (run_program_and_log_output
1123        ("grep ramdisk /proc/devices", FALSE)) {
1124        if (!ask_me_yes_or_no
1125            ("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?"))
1126        {
1127            //          retval++;
1128            log_to_screen
1129                ("It looks as if your kernel lacks ramdisk and initrd support.");
1130            log_to_screen
1131                ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
1132        }
1133    }
1134#endif
1135    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
1136    retval += whine_if_not_found("mkisofs");
1137    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
1138        retval += whine_if_not_found("cdrecord");
1139    }
1140    retval += whine_if_not_found("bzip2");
1141    retval += whine_if_not_found("gzip");
1142    retval += whine_if_not_found("awk");
1143    retval += whine_if_not_found("md5sum");
1144    retval += whine_if_not_found("strings");
1145    retval += whine_if_not_found("mindi");
1146    retval += whine_if_not_found("buffer");
1147
1148    // abort if Windows partition but no ms-sys and parted
1149    if (!run_program_and_log_output
1150        ("mount | grep -w vfat | grep -vE \"/dev/fd|nexdisk\"", 0)
1151        ||
1152        !run_program_and_log_output
1153        ("mount | grep -w dos | grep -vE \"/dev/fd|nexdisk\"", 0)) {
1154        log_to_screen("I think you have a Windows 9x partition.");
1155        retval += whine_if_not_found("parted");
1156#ifndef __IA64__
1157        /* IA64 always has one vfat partition for EFI even without Windows */
1158        // retval +=
1159        if (!find_home_of_exe("ms-sys")) {
1160            log_to_screen("Please install ms-sys just in case.");
1161        }
1162#endif
1163    }
1164
1165    if (!find_home_of_exe("cmp")) {
1166        if (!find_home_of_exe("true")) {
1167            whine_if_not_found("cmp");
1168        } else {
1169            log_to_screen
1170                ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1171            if (run_program_and_log_output
1172                ("cp -f `which true` /usr/bin/cmp", 0)) {
1173                fatal_error("Failed to create dummy 'cmp' file.");
1174            }
1175        }
1176    }
1177    run_program_and_log_output
1178        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1179    strcpy(tmp,
1180           call_program_and_get_last_line_of_output
1181           ("mount | grep -E \"cdr(om|w)\""));
1182    if (strcmp("", tmp)) {
1183        if (strstr(tmp, "autofs")) {
1184            log_to_screen
1185                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1186            log_to_screen
1187                ("if a CD actually is inserted. If a CD is inserted, please");
1188            log_to_screen("eject it. Thank you.");
1189            log_it
1190                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1191        } else
1192            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1193            retval++;
1194            fatal_error
1195                ("Your CD-ROM drive is mounted. Please unmount it.");
1196        }
1197    }
1198#ifndef __FreeBSD__
1199    if (!does_file_exist("/etc/modules.conf")) {
1200        if (does_file_exist("/etc/conf.modules")) {
1201            log_it("Linking /etc/modules.conf to /etc/conf.modules");
1202            run_program_and_log_output
1203                ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
1204        } else if (does_file_exist("/etc/modprobe.d")) {
1205            log_it
1206                ("Directory /etc/modprobe.d found. mindi will use its contents.");
1207        } else if (does_file_exist("/etc/modprobe.conf")) {
1208            log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
1209            run_program_and_log_output
1210                ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
1211        } else {
1212            retval++;
1213            log_to_screen
1214                ("Please find out what happened to /etc/modules.conf");
1215        }
1216    }
1217#endif
1218
1219    run_program_and_log_output("cat /etc/fstab", 5);
1220#ifdef __FreeBSD__
1221    run_program_and_log_output("vinum printconfig", 5);
1222#else
1223    run_program_and_log_output("cat /etc/raidtab", 5);
1224#endif
1225
1226    if (run_program_and_log_output("mindi -V", 1)) {
1227        log_to_screen("Could not ascertain mindi's version number.");
1228        log_to_screen
1229            ("You have not installed Mondo and/or Mindi properly.");
1230        log_to_screen("Please uninstall and reinstall them both.");
1231        fatal_error("Please reinstall Mondo and Mindi.");
1232    }
1233    if (run_program_and_log_output
1234        ("mindi --makemountlist /tmp/mountlist.txt.test", 5)) {
1235        log_to_screen
1236            ("Mindi --makemountlist /tmp/mountlist.txt.test failed for some reason.");
1237        log_to_screen
1238            ("Please run that command by hand and examine /var/log/mindi.log");
1239        log_to_screen
1240            ("for more information. Perhaps your /etc/fstab file is insane.");
1241        log_to_screen
1242            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1243        retval++;
1244    }
1245
1246    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1247        && !does_file_exist("/etc/raidtab")) {
1248        log_to_screen
1249            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1250        create_raidtab_from_mdstat("/etc/raidtab");
1251    }
1252
1253    if (retval) {
1254        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1255    } else {
1256        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1257    }
1258    return (retval);
1259}
1260
1261/**
1262 * Retrieve the line containing @p label from the config file.
1263 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1264 * @param label What to read from the file.
1265 * @param value Where to put it.
1266 * @return 0 for success, 1 for failure.
1267 */
1268int read_cfg_var(char *config_file, char *label, char *value)
1269{
1270    /*@ buffer ****************************************************** */
1271    char command[MAX_STR_LEN * 2];
1272    char tmp[MAX_STR_LEN];
1273
1274    /*@ end vars *************************************************** */
1275
1276    assert_string_is_neither_NULL_nor_zerolength(config_file);
1277    assert_string_is_neither_NULL_nor_zerolength(label);
1278    if (!does_file_exist(config_file)) {
1279        sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1280                config_file);
1281        log_to_screen(tmp);
1282        value[0] = '\0';
1283        return (1);
1284    } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1285        log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1286        return (0);
1287    } else {
1288        sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1289                label, config_file);
1290        strcpy(value, call_program_and_get_last_line_of_output(command));
1291        if (strlen(value) == 0) {
1292            return (1);
1293        } else {
1294            return (0);
1295        }
1296    }
1297}
1298
1299
1300
1301/**
1302 * Remount @c supermount if it was unmounted earlier.
1303 */
1304void remount_supermounts_if_necessary()
1305{
1306    if (g_remount_cdrom_at_end) {
1307        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1308    }
1309    if (g_remount_floppy_at_end) {
1310        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1311    }
1312}
1313
1314/**
1315 * Unmount @c supermount if it's mounted.
1316 */
1317void unmount_supermounts_if_necessary()
1318{
1319    if (run_program_and_log_output
1320        ("mount | grep cdrom | grep super", FALSE) == 0) {
1321        g_remount_cdrom_at_end = TRUE;
1322        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1323    }
1324    if (run_program_and_log_output
1325        ("mount | grep floppy | grep super", FALSE) == 0) {
1326        g_remount_floppy_at_end = TRUE;
1327        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1328    }
1329}
1330
1331/**
1332 * Whether we had to stop autofs (if so, restart it at end).
1333 */
1334bool g_autofs_stopped = FALSE;
1335
1336/**
1337 * Path to the autofs initscript ("" if none exists).
1338 */
1339char g_autofs_exe[MAX_STR_LEN];
1340
1341/**
1342 * Autofs initscript in Xandros Linux distribution.
1343 */
1344#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1345
1346/**
1347 * Autofs initscript in most Linux distributions.
1348 */
1349#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1350
1351/**
1352 * If autofs is mounted, stop it (restart at end).
1353 */
1354void stop_autofs_if_necessary()
1355{
1356    char tmp[MAX_STR_LEN];
1357
1358    g_autofs_exe[0] = '\0';
1359    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1360        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1361    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1362        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1363    }
1364
1365    if (!g_autofs_exe[0]) {
1366        log_msg(3, "No autofs detected.");
1367    } else {
1368        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1369// FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1370        sprintf(tmp, "%s stop", g_autofs_exe);
1371        if (run_program_and_log_output(tmp, 2)) {
1372            log_it("Failed to stop autofs - I assume it wasn't running");
1373        } else {
1374            g_autofs_stopped = TRUE;
1375            log_it("Stopped autofs OK");
1376        }
1377    }
1378}
1379
1380/**
1381 * If autofs was stopped earlier, restart it.
1382 */
1383void restart_autofs_if_necessary()
1384{
1385    char tmp[MAX_STR_LEN];
1386
1387    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1388        log_msg(3, "No autofs detected.");
1389        return;
1390    }
1391    sprintf(tmp, "%s start", g_autofs_exe);
1392    if (run_program_and_log_output(tmp, 2)) {
1393        log_it("Failed to start autofs");
1394    } else {
1395        g_autofs_stopped = FALSE;
1396        log_it("Started autofs OK");
1397    }
1398}
1399
1400
1401/**
1402 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1403 */
1404void mount_boot_if_necessary()
1405{
1406    char tmp[MAX_STR_LEN];
1407    char command[MAX_STR_LEN];
1408
1409    log_msg(1, "Started sub");
1410    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1411    g_boot_mountpt[0] = '\0';
1412    log_msg(4, "Done. Great. Seeting command to something");
1413    strcpy(command,
1414           "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[   ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1415    log_msg(4, "Cool. Command = '%s'", command);
1416    strcpy(tmp, call_program_and_get_last_line_of_output(command));
1417    log_msg(4, "tmp = '%s'", tmp);
1418    if (tmp[0]) {
1419        log_it("/boot is at %s according to /etc/fstab", tmp);
1420        if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1421            if (!run_program_and_log_output("mount /boot", 5)) {
1422                strcpy(g_boot_mountpt, "/boot");
1423                log_msg(1, "Mounted /boot");
1424            } else {
1425                log_it("...ignored cos it's a label or uuid :-)");
1426            }
1427        } else {
1428            sprintf(command, "mount | grep -E '^%s'", tmp);
1429            log_msg(3, "command = %s", command);
1430            if (run_program_and_log_output(command, 5)) {
1431                strcpy(g_boot_mountpt, tmp);
1432                sprintf(tmp,
1433                        "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1434                        g_boot_mountpt);
1435                log_it(tmp);
1436                sprintf(tmp, "mount %s", g_boot_mountpt);
1437                if (run_program_and_log_output(tmp, 5)) {
1438                    g_boot_mountpt[0] = '\0';
1439                    log_msg(1, "Plan B");
1440                    if (!run_program_and_log_output("mount /boot", 5)) {
1441                        strcpy(g_boot_mountpt, "/boot");
1442                        log_msg(1, "Plan B worked");
1443                    } else {
1444                        log_msg(1,
1445                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1446                    }
1447                }
1448            }
1449        }
1450    }
1451    log_msg(1, "Ended sub");
1452}
1453
1454
1455/**
1456 * If we mounted /boot earlier, unmount it.
1457 */
1458void unmount_boot_if_necessary()
1459{
1460    char tmp[MAX_STR_LEN];
1461
1462    log_msg(3, "starting");
1463    if (g_boot_mountpt[0]) {
1464        sprintf(tmp, "umount %s", g_boot_mountpt);
1465        if (run_program_and_log_output(tmp, 5)) {
1466            log_it("WARNING - unable to unmount /boot");
1467        }
1468    }
1469    log_msg(3, "leaving");
1470}
1471
1472
1473
1474/**
1475 * Write a line to a configuration file. Writes a line of the form,
1476 * @c label @c value.
1477 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1478 * @param label What to call this bit of data you're writing.
1479 * @param value The bit of data you're writing.
1480 * @return 0 for success, 1 for failure.
1481 */
1482int write_cfg_var(char *config_file, char *label, char *value)
1483{
1484    /*@ buffers ***************************************************** */
1485    char command[MAX_STR_LEN * 2];
1486    char tempfile[MAX_STR_LEN];
1487    char tmp[MAX_STR_LEN];
1488
1489
1490    /*@ end vars *************************************************** */
1491    assert_string_is_neither_NULL_nor_zerolength(config_file);
1492    assert_string_is_neither_NULL_nor_zerolength(label);
1493    assert(value != NULL);
1494    if (!does_file_exist(config_file)) {
1495        sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1496                config_file);
1497        log_to_screen(tmp);
1498        return (1);
1499    }
1500    strcpy(tempfile,
1501           call_program_and_get_last_line_of_output
1502           ("mktemp -q /tmp/mojo-jojo.blah.XXXXXX"));
1503    if (does_file_exist(config_file)) {
1504        sprintf(command, "grep -vE '^%s .*$' %s > %s",
1505                label, config_file, tempfile);
1506        paranoid_system(command);
1507    }
1508    sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1509    paranoid_system(command);
1510    sprintf(command, "mv -f %s %s", tempfile, config_file);
1511    paranoid_system(command);
1512    unlink(tempfile);
1513    return (0);
1514}
1515
1516
1517/**
1518 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1519 * information to the logfile.
1520 */
1521void standard_log_debug_msg(int debug_level, const char *szFile,
1522                            const char *szFunction, int nLine,
1523                            const char *fmt, ...)
1524{
1525    va_list args;
1526    int i;
1527    static int depth = 0;
1528    char *tmp;
1529    FILE *fout;
1530
1531    if (depth > 5) {
1532        depth--;
1533        return;
1534    }
1535    depth++;
1536
1537    malloc_string(tmp);
1538
1539    if (debug_level <= g_loglevel) {
1540        va_start(args, fmt);
1541        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1542            return;
1543        }                       // fatal_error("Failed to openout to logfile - sheesh..."); }
1544
1545        // add tabs to distinguish log levels
1546        if (debug_level > 0) {
1547            for (i = 1; i < debug_level; i++)
1548                fprintf(fout, "\t");
1549            if (getpid() == g_main_pid)
1550                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1551                        nLine);
1552            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1553                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1554                        nLine);
1555            else
1556                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1557                        szFunction, nLine);
1558        }
1559        vfprintf(fout, fmt, args);
1560
1561        // do not slow down the progran if standard debug level
1562        // must be enabled: if no flush, the log won't be up-to-date if there
1563        // is a segfault
1564        //if (g_dwDebugLevel != 1)
1565
1566        va_end(args);
1567        fprintf(fout, "\n");
1568        paranoid_fclose(fout);
1569    }
1570    depth--;
1571    paranoid_free(tmp);
1572}
1573
1574/**
1575 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1576 */
1577void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1578                       ...) = standard_log_debug_msg;
1579
1580
1581/**
1582 * If @p y, malloc @p x, else free @p x.
1583 * @bug This function seems orphaned. Please remove.
1584 */
1585#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1586
1587/**
1588 * Allocate or free important globals, depending on @p mal.
1589 * @param mal If TRUE, malloc; if FALSE, free.
1590 */
1591void do_libmondo_global_strings_thing(int mal)
1592{
1593    if (mal) {
1594        iamhere("Malloc'ing globals");
1595        malloc_string(g_boot_mountpt);
1596        malloc_string(g_mondo_home);
1597        malloc_string(g_tmpfs_mountpt);
1598        malloc_string(g_erase_tmpdir_and_scratchdir);
1599        malloc_string(g_serial_string);
1600        malloc_string(g_magicdev_command);
1601    } else {
1602        iamhere("Freeing globals");
1603        paranoid_free(g_boot_mountpt);
1604        paranoid_free(g_mondo_home);
1605        paranoid_free(g_tmpfs_mountpt);
1606        paranoid_free(g_erase_tmpdir_and_scratchdir);
1607        paranoid_free(g_serial_string);
1608        paranoid_free(g_magicdev_command);
1609    }
1610
1611    /*
1612       char**list_of_arrays[] = {
1613       &g_boot_mountpt,
1614       &g_mondo_home,
1615       &g_tmpfs_mountpt,
1616       &g_erase_tmpdir_and_scratchdir,
1617       &g_serial_string,
1618       &g_magicdev_command,
1619       NULL};
1620
1621       char**ppcurr;
1622       int i;
1623
1624       for(i=0;list_of_arrays[i];i++)
1625       {
1626       log_msg(5, "Allocating %d", i);
1627       ppcurr = list_of_arrays[i];
1628       if (mal)
1629       { *ppcurr = malloc(MAX_STR_LEN); }
1630       else
1631       {
1632       if (*ppcurr)
1633       {
1634       free(*ppcurr);
1635       }
1636       }
1637       }
1638       log_msg(5, "Returning");
1639     */
1640}
1641
1642/**
1643 * Allocate important globals.
1644 * @see do_libmondo_global_strings_thing
1645 */
1646void malloc_libmondo_global_strings(void)
1647{
1648    do_libmondo_global_strings_thing(1);
1649}
1650
1651/**
1652 * Free important globals.
1653 * @see do_libmondo_global_strings_thing
1654 */
1655void free_libmondo_global_strings(void)
1656{
1657    do_libmondo_global_strings_thing(0);
1658}
1659
1660
1661
1662/**
1663 * Stop @c magicdev if it's running.
1664 * The command used to start it is saved in @p g_magicdev_command.
1665 */
1666void stop_magicdev_if_necessary()
1667{
1668    strcpy(g_magicdev_command,
1669           call_program_and_get_last_line_of_output
1670           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1671    if (g_magicdev_command[0]) {
1672        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1673        paranoid_system("killall magicdev");
1674    }
1675}
1676
1677
1678/**
1679 * Restart magicdev if it was stopped.
1680 */
1681void restart_magicdev_if_necessary()
1682{
1683    char *tmp;
1684
1685    malloc_string(tmp);
1686    if (g_magicdev_command && g_magicdev_command[0]) {
1687        sprintf(tmp, "%s &", g_magicdev_command);
1688        paranoid_system(tmp);
1689    }
1690    paranoid_free(tmp);
1691}
1692
1693/* @} - end of utilityGroup */
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