source: branches/2.2.5/mondo/src/common/libmondo-tools.c @ 1654

Last change on this file since 1654 was 1654, checked in by Bruno Cornec, 13 years ago

mkdtemp checked in configure
Fix bugs insetup_tmpdir

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File size: 45.6 KB
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1/* libmondo-tools.c                                  misc tools
2   $Id: libmondo-tools.c 1654 2007-09-24 12:13:24Z bruno $
3.
4
5
606/28
7- abort if RAID partitions found but /etc/raidtab not found
8
906/25
10- don't insist on ms-sys; recommend it
11- don't fatal_error if can't open log file
12
1306/14
14- call mindi -V before calling mindi --makemountlist
15
1604/09
17- lots of malloc'd char*'s instead of char[]'s in post_param_config'n
18
1904/02
20- better sanity-checking, re: /etc/modules.conf
21
2202/15
23- abort if Windows dir but no ms-sys or parted
24
2502/08
26- missing ramdisk/initrd support is nonfatal now (but stupid)
27
2801/16
29- added g_kernel_version and get_kernel_version()
30
3101/08/2004
32- fixed /boot mounter thingy
33
3411/14/2003
35- if <50MB free in /root, softlink /root/images/mindi to
36  /home/root/images/mindi as a workaround
37
3810/23
39- streaming backups now generate 4MB sets; CDs, 8MB sets
40
4110/21
42- better at finding your /boot in order to mount it, if nec.
43- link /etc/modules.conf to /etc/conf.modules if former
44  is missing but latter is not
45- changed "/mnt/cdrom" to MNT_CDROM
46- changed "/mnt/floppy" to MNT_FLOPPY
47
4810/13
49- added stop_magicdev_if_necessary()
50- added restart_magicdev_if_necessary()
51
5210/02
53- don't eject if bkpinfo->please_dont_eject is TRUE
54
5509/28
56- fixed segfault in mount_..._necessary
57
5809/26
59- ask for cmp (or create workaround if possible)
60
6109/25
62- add DVD support
63
6409/24
65- don't overwrite existing media-dev value in bkpinfo IF it's
66  a tape device AND it's already populated by /dev/{something}
67  ...This helps w/ weird tape drives
68
6909/23
70- malloc/free global strings in new subroutines - malloc_libmondo_global_strings()
71  and free_libmondo_global_strings() - which are in libmondo-tools.c
72
7309/18
74- added stop_autofs_if_necessary() and restart_autofs_if_necessary()
75
7609/13
77- added log_debug_msg()
78- turned log_it() into a macro
79
8009/10
81- reduced PPCFG_RAMDISK to 150m (was 200m)
82- max set size is now 8MB (was 6)
83- added 'buffer' to requisite tools
84
8508/29
86- typical set size is now 5MB
87   
8807/22
89- increased PPCFG* to 200m
90
9105/07
92- changed grep -m1 to grep | head -n1 for Debian users
93- pre_param_...() also mkdir -p /mnt/cdrom, just in case
94
9505/05
96- cleaner logging of call to dd if=<tape> of=/dev/null
97- added Joshua Oreman's FreeBSD patches
98
9905/04
100- added Herman Kuster's multi-level bkp patch
101
10205/02
103- log_it() --- "Message repeated N times" (if it was)
104
10504/24
106- added lots of assert()'s and log_OS_error()'s
107- reset_bkpinfop() --- reset all media_size[] array
108- increased tmpfs ramdisk to size=100m
109
11004/22
111- post_param_configuration() --- store iso-dev and isodir
112
11304/05
114- re-enable tmpfs ramdisk/mountpt _but_ make sure size=80m
115- in post_param_configuration(), use cdrecord in preference
116  to dvdrecord now
117
11803/27
119- disabled tmpfs ramdisk/mountpt
120
12101/02/2003
122- bkpinfo->makefilelist = TRUE
123
12412/10/2002
125- added g_loglevel
126- fixed minor bug in clean_up_KDE_desktop_if_necessary()
127- log versions of newt, slang, ncurses
128- isodir defaults to / if disaster recovery
129
13011/28
131- unmount all CD devices at start
132- added clean_up_KDE_desktop_if_necessary()
133
13411/20
135- don't use lilo.conf.anaconda; abort instead
136- mount/unmount /boot partition for Gentoo 1.2 users
137
13811/13
139- call mindi --makemountlist as part of testing sanity of distro
140
14111/08
142- added a couple of chmod 700's (one for scratchdir, one for tmpdir)
143  to post_param_configuration()
144
14510/01 - 10/31
146- added checking of / and /root's free space to some_basic_sanity_checks()
147- moved some subroutines here from common/libmondo-archive
148
14909/01 - 09/30
150- don't write log_it()'s string to stdout, even if text mode
151- tell user the kernel is bad if it has no ramdisk support but allow
152  it if they want to use the failsafe kernel for booting
153- run_program_and_log_output() now takes boolean operator to specify
154  whether it will log its activities in the event of _success_
155- if mkfs.vfat not found but mkfs.msdos found then create a softlink
156  from the former to the latter
157
15808/01 - 08/31
159- if /etc/lilo.conf not found not /etc/lilo.conf.anaconda found
160  then create a softlink from the former to the latter, to work
161  around RH7.3's b0rken LILO support
162- handle unknown media size
163
16407/27
165- created
166*/
167
168
169/**
170 * @file
171 * Miscellaneous tools that didn't really fit anywhere else.
172 */
173
174#include "my-stuff.h"
175#include "mondostructures.h"
176#include "lib-common-externs.h"
177#include "libmondo-tools.h"
178#include "libmondo-gui-EXT.h"
179#include "libmondo-files-EXT.h"
180#include "libmondo-fork-EXT.h"
181#include "libmondo-raid-EXT.h"
182#include <sys/socket.h>
183#include <netdb.h>
184#include <stdlib.h>
185#include <netinet/in.h>
186#include <arpa/inet.h>
187#include <sys/utsname.h>
188
189/*@unused@*/
190//static char cvsid[] = "$Id: libmondo-tools.c 1654 2007-09-24 12:13:24Z bruno $";
191
192extern int g_tape_buffer_size_MB;
193extern char *g_erase_tmpdir_and_scratchdir;
194extern char *g_serial_string;
195extern bool g_text_mode;
196extern int g_currentY;
197extern int g_current_media_number;
198extern char *MONDO_LOGFILE;
199
200/* Reference to global bkpinfo */
201extern struct s_bkpinfo *bkpinfo;
202
203/**
204 * @addtogroup globalGroup
205 * @{
206 */
207bool g_remount_cdrom_at_end,    ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
208 g_remount_floppy_at_end;       ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
209bool g_cd_recovery;             ///< TRUE if we're making an "autonuke" backup.
210double g_kernel_version;
211
212/**
213 * The place where /boot is mounted.
214 */
215char *g_boot_mountpt = NULL;
216
217/**
218 * The location of Mondo's home directory.
219 */
220char *g_mondo_home = NULL;
221
222/**
223 * The serial string (used to differentiate between backups) of the current backup.
224 */
225char *g_serial_string = NULL;
226
227/**
228 * The location where tmpfs is mounted, or "" if it's not mounted.
229 */
230char *g_tmpfs_mountpt = NULL;
231char *g_magicdev_command = NULL;
232
233/**
234 * The default maximum level to log messages at or below.
235 */
236int g_loglevel = DEFAULT_DEBUG_LEVEL;
237
238/* @} - end of globalGroup */
239
240
241extern pid_t g_buffer_pid;
242extern pid_t g_main_pid;
243
244extern t_bkptype g_backup_media_type;
245
246extern bool am_I_in_disaster_recovery_mode(void);
247
248
249/**
250 * @addtogroup utilityGroup
251 * @{
252 */
253/**
254 * Assertion handler. Prints a friendly message to the user,
255 * offering to ignore all, dump core, break to debugger,
256 * exit, or ignore. Intended to be used with an assert() macro.
257 *
258 * @param file The file in which the assertion triggered.
259 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
260 * @param line The line number of the assert() statement.
261 * @param exp The expression that failed (as a string).
262 */
263void _mondo_assert_fail(const char *file,
264                        const char *function, int line, const char *exp)
265{
266    static int ignoring_assertions = 0;
267    bool is_valid = TRUE;
268
269    log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
270           function);
271    if (ignoring_assertions) {
272        log_it("Well, the user doesn't care...");
273        return;
274    }
275#ifndef _XWIN
276    if (!g_text_mode)
277        newtSuspend();
278#endif
279    printf("ASSERTION FAILED: `%s'\n", exp);
280    printf("\tat %s:%d in %s\n\n", file, line, function);
281    printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
282    do {
283        is_valid = TRUE;
284        switch (toupper(getchar())) {
285        case 'A':               // ignore (A)ll
286            ignoring_assertions = 1;
287            break;
288        case 'B':               // a(B)ort
289            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
290            raise(SIGABRT);
291            break;              /* "can't get here" */
292        case 'D':               // (D)ebug, aka asm("int 3")
293#ifdef __IA32__
294            __asm__ __volatile__("int $3"); // break to debugger
295#endif
296            break;
297        case 'E':               // (E)xit
298            fatal_error("Failed assertion -- see above for details");
299            break;              /* "can't get here" */
300        case 'I':               // (I)gnore
301            break;
302            /* These next two work as follows:
303               the `default' catches the user's invalid choice and says so;
304               the '\n' catches the newline on the end and prints the prompt again.
305             */
306        case '\n':
307            printf
308                ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
309            break;
310        default:
311            is_valid = FALSE;
312            printf("Invalid choice.\n");
313            break;
314        }
315    } while (!is_valid);
316
317    if (ignoring_assertions) {
318        log_it("Ignoring ALL assertions from now on.");
319    } else {
320        log_it("Ignoring assertion: %s", exp);
321    }
322
323    getchar();                  // skip \n
324
325#ifndef _XWIN
326    if (!g_text_mode)
327        newtResume();
328#endif
329}
330
331/**
332 * Clean's up users' KDE desktops.
333 * @bug Details about this function are unknown.
334 */
335void clean_up_KDE_desktop_if_necessary(void)
336{
337    char *tmp;
338
339    malloc_string(tmp);
340    strcpy(tmp,
341           "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
342file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
343awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
344else { print $0;};}' $file.old  > $file ; fi ; done");
345    run_program_and_log_output(tmp, 5);
346    paranoid_free(tmp);
347}
348
349
350/**
351 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
352 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
353 *
354 * @param home_sz String to store the home directory ("" if it could not be found).
355 * @return 0 for success, nonzero for failure.
356 */
357int find_and_store_mondoarchives_home(char *home_sz)
358{
359    assert(home_sz != NULL);
360    strcpy(home_sz, MONDO_SHARE);
361    return (0);
362}
363
364
365char *get_architecture(void) {
366#ifdef __IA32__
367#   ifdef __X86_64__
368        return ("x86_64");
369#   else
370        return ("i386");
371#   endif
372#endif
373#ifdef __IA64__
374    return ("ia64");
375#endif
376    return ("unknown");
377}
378
379
380char *get_uname_m(void) {
381
382    struct utsname utsn;
383    char *tmp = NULL;
384
385    uname(&utsn);
386    asprintf(&tmp, utsn.machine);
387    return (tmp);
388}
389
390
391
392double get_kernel_version(void)
393{
394    char *p, tmp[200];
395    double d;
396#ifdef __FreeBSD__
397    // JOSH - FIXME :)
398    d = 5.2;                    // :-)
399#else
400    strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
401    p = strchr(tmp, '.');
402    if (p) {
403        p = strchr(++p, '.');
404        if (p) {
405            while (*p) {
406                *p = *(p + 1);
407                p++;
408            }
409        }
410    }
411//  log_msg(1, "tmp = '%s'", tmp);
412    d = atof(tmp);
413#endif
414    log_msg(1, "g_kernel_version = %f", d);
415    return (d);
416}
417
418
419
420
421
422/**
423 * Get the current time.
424 * @return number of seconds since the epoch.
425 */
426long get_time()
427{
428    return (long) time((void *) 0);
429}
430
431
432
433
434
435
436
437/**
438 * Initialize a RAID volume structure, setting fields to zero. The
439 * actual hard drive is unaffected.
440 *
441 * @param raidrec The RAID volume structure to initialize.
442 * @note This function is system dependent.
443 */
444#ifdef __FreeBSD__
445void initialize_raidrec(struct vinum_volume *raidrec)
446{
447    int i, j;
448    raidrec->volname[0] = '\0';
449    raidrec->plexes = 0;
450    for (i = 0; i < 9; ++i) {
451        raidrec->plex[i].raidlevel = -1;
452        raidrec->plex[i].stripesize = 0;
453        raidrec->plex[i].subdisks = 0;
454        for (j = 0; j < 9; ++j) {
455            strcpy(raidrec->plex[i].sd[j].which_device, "");
456        }
457    }
458}
459#else
460void initialize_raidrec(struct raid_device_record *raidrec)
461{
462    assert(raidrec != NULL);
463    raidrec->raid_device[0] = '\0';
464    raidrec->raid_level = -9;
465    raidrec->persistent_superblock = 1;
466    raidrec->chunk_size = 64;
467    raidrec->parity = -1;
468    raidrec->data_disks.entries = 0;
469    raidrec->spare_disks.entries = 0;
470    raidrec->parity_disks.entries = 0;
471    raidrec->failed_disks.entries = 0;
472    raidrec->additional_vars.entries = 0;
473}
474#endif
475
476
477
478
479/**
480 * Insert modules that Mondo requires.
481 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
482 * @c msdosfs and @c ext2fs for FreeBSD.
483 */
484void insmod_crucial_modules(void)
485{
486#ifdef __FreeBSD__
487    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
488    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
489#else
490    system("modprobe -a msdos vfat loop &> /dev/null");
491#endif
492}
493
494
495/**
496 * Log a trace message to the trace file.
497 * @bug This function seems orphaned. Please remove.
498 */
499void log_trace(char *o)
500{
501    /*@ pointers **************************************************** */
502    FILE *fout;
503
504    /*@ buffers ***************************************************** */
505    char output[MAX_STR_LEN];
506
507    /*@ int    ****************************************************** */
508    int i;
509
510    /*@ end vars *************************************************** */
511
512    if (o[0] == '\0') {
513        return;
514    }
515    strcpy(output, o);
516    i = (int) strlen(output);
517    if (i <= 0) {
518        return;
519    }
520    if (output[i - 1] < 32) {
521        output[i - 1] = '\0';
522    }
523    if (g_text_mode
524        /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
525        printf("%s\n", output);
526    }
527
528    fout = fopen(MONDO_TRACEFILE, "a");
529    if (fout) {
530        fprintf(fout, "%s\n", output);
531        paranoid_fclose(fout);
532    } else {
533        log_OS_error("Cannot write to tracefile");
534    }
535}
536
537
538
539
540
541/**
542 * Finish configuring the backup information structure. Call this function
543 * to set the parameters that depend on those that can be given on the command
544 * line.
545 *
546 * @param bkpinfo The backup information structure. Fields modified/used:
547 * - Used: @c bkpinfo->backup_data
548 * - Used: @c bkpinfo->backup_media_type
549 * - Used: @c bkpinfo->cdrw_speed
550 * - Used: @c bkpinfo->compression_level
551 * - Used: @c bkpinfo->include_paths
552 * - Used: @c bkpinfo->prefix
553 * - Used: @c bkpinfo->isodir
554 * - Used: @c bkpinfo->manual_cd_tray
555 * - Used: @c bkpinfo->make_cd_use_lilo
556 * - Used: @c bkpinfo->media_device
557 * - Used: @c bkpinfo->nfs_mount
558 * - Used: @c bkpinfo->nonbootable_backup
559 * - Used: @c bkpinfo->scratchdir
560 * - Used: @c bkpinfo->tmpdir
561 * - Used: @c bkpinfo->use_lzo
562 * - Modified: @c bkpinfo->call_before_iso
563 * - Modified: @c bkpinfo->call_make_iso
564 * - Modified: @c bkpinfo->optimal_set_size
565 * - Modified: @c bkpinfo->zip_exe
566 * - Modified: @c bkpinfo->zip_suffix
567 *
568 * @return number of errors, or 0 for success.
569 * @note Also creates directories that are specified in the @c bkpinfo structure but
570 * do not exist.
571 */
572int post_param_configuration()
573{
574    char *extra_cdrom_params;
575    char *mondo_mkisofs_sz;
576    char *command;
577    char *mtpt;
578    char *hostname, *ip_address;
579    int retval = 0;
580    long avm = 0;
581    char *colon;
582    char *cdr_exe;
583    char *tmp;
584    char call_before_iso_user[MAX_STR_LEN] = "\0";
585    int rdsiz_MB;
586    char *iso_dev;
587    char *iso_mnt;
588    char *iso_tmp;
589    char *iso_path;
590
591    assert(bkpinfo != NULL);
592    malloc_string(extra_cdrom_params);
593    malloc_string(mondo_mkisofs_sz);
594    malloc_string(command);
595    malloc_string(mtpt);
596    malloc_string(hostname);
597    malloc_string(ip_address);
598    malloc_string(cdr_exe);
599    malloc_string(tmp);
600    malloc_string(iso_dev);
601    malloc_string(iso_mnt);
602    malloc_string(iso_tmp);
603    malloc_string(iso_path);
604    bkpinfo->optimal_set_size =
605        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
606        1024;
607
608    log_msg(1, "Foo");
609    if (bkpinfo->backup_media_type == tape) {
610        log_msg(1, "Bar");
611        sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
612        log_msg(1, "tmp = '%s'", tmp);
613        if (run_program_and_log_output(tmp, 3)) {
614            fatal_error
615                ("Unable to open tape device. If you haven't specified it with -d, do so. If you already have, check your parameter. I think it's wrong.");
616        }
617    }
618    make_hole_for_dir(bkpinfo->scratchdir);
619    make_hole_for_dir(bkpinfo->tmpdir);
620    if (bkpinfo->backup_media_type == iso)
621        make_hole_for_dir(bkpinfo->isodir);
622
623    run_program_and_log_output("uname -a", 5);
624    run_program_and_log_output("cat /etc/*-release", 5);
625    run_program_and_log_output("cat /etc/*issue*", 5);
626    sprintf(g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
627    sprintf(command, "mkdir -p %s", g_tmpfs_mountpt);
628    paranoid_system(command);
629    rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
630#ifdef __FreeBSD__
631    strcpy(tmp,
632           call_program_and_get_last_line_of_output
633           ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
634    avm += atol(tmp);
635    strcpy(tmp,
636           call_program_and_get_last_line_of_output
637           ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
638    avm += atol(tmp);
639    sprintf(command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
640            g_tmpfs_mountpt);
641#else
642    strcpy(tmp,
643           call_program_and_get_last_line_of_output
644           ("free | grep ':' | tr -s ' ' '\t' | cut -f2 | head -n1"));
645    avm += atol(tmp);
646    sprintf(command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
647            g_tmpfs_mountpt, rdsiz_MB, 'm');
648    run_program_and_log_output("cat /proc/cpuinfo", 5);
649    run_program_and_log_output
650        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
651         5);
652#endif
653    if (avm / 1024 > rdsiz_MB * 3) {
654        if (run_program_and_log_output(command, 5)) {
655            g_tmpfs_mountpt[0] = '\0';
656            log_it("Failed to mount tmpfs");
657        } else {
658            log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
659        }
660    } else {
661        g_tmpfs_mountpt[0] = '\0';
662        log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
663    }
664
665    if (bkpinfo->use_lzo) {
666        strcpy(bkpinfo->zip_exe, "lzop");
667        strcpy(bkpinfo->zip_suffix, "lzo");
668    } else if (bkpinfo->use_gzip) {
669        strcpy(bkpinfo->zip_exe, "gzip");
670        strcpy(bkpinfo->zip_suffix, "gz");
671    } else if (bkpinfo->compression_level != 0) {
672        strcpy(bkpinfo->zip_exe, "bzip2");
673        strcpy(bkpinfo->zip_suffix, "bz2");
674    } else {
675        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
676    }
677
678// DVD
679
680    if (bkpinfo->backup_media_type == dvd) {
681        extra_cdrom_params[0] = '\0';
682        mondo_mkisofs_sz[0] = '\0';
683        if (find_home_of_exe("growisofs")) {
684            strcpy(cdr_exe, "growisofs");
685        }                       // unlikely to be used
686        else {
687            fatal_error("Please install growisofs.");
688        }
689        if (bkpinfo->nonbootable_backup) {
690            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
691        } else if
692#ifdef __FreeBSD__
693            (TRUE)
694#else
695            (bkpinfo->make_cd_use_lilo)
696#endif
697#ifdef __IA64__
698    {
699        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
700    }
701#else
702    {
703        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
704    }
705#endif
706        else
707        {
708            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
709        }
710        if (bkpinfo->manual_cd_tray) {
711            fatal_error("Manual CD tray + DVD not supported yet.");
712            // -m isn't supported by growisofs, BTW...
713        } else {
714            sprintf(bkpinfo->call_make_iso,
715                    "%s %s -Z %s . 2>> _ERR_",
716                    mondo_mkisofs_sz,
717                    extra_cdrom_params, bkpinfo->media_device);
718        }
719        if (getenv ("SUDO_COMMAND")) {
720            sprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
721            if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
722                popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
723                fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
724            }       
725        }
726        log_msg(2, "call_make_iso (DVD res) is ... %s",
727                bkpinfo->call_make_iso);
728    }                           // end of DVD code
729
730// CD-R or CD-RW
731    if (bkpinfo->backup_media_type == cdrw
732        || bkpinfo->backup_media_type == cdr) {
733        extra_cdrom_params[0] = '\0';
734        if (!bkpinfo->manual_cd_tray) {
735            strcat(extra_cdrom_params, "-waiti ");
736        }
737        if (bkpinfo->backup_media_type == cdrw) {
738            strcat(extra_cdrom_params, "blank=fast ");
739        }
740        if (find_home_of_exe("cdrecord")) {
741            strcpy(cdr_exe, "cdrecord");
742        } else if (find_home_of_exe("dvdrecord")) {
743            strcpy(cdr_exe, "dvdrecord");
744        } else {
745            fatal_error("Please install either cdrecord or dvdrecord.");
746        }
747        if (bkpinfo->nonbootable_backup) {
748            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
749        } else if
750#ifdef __FreeBSD__
751            (TRUE)
752#else
753            (bkpinfo->make_cd_use_lilo)
754#endif
755#ifdef __IA64__
756    {
757        strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
758    }
759#else
760    {
761        strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
762    }
763#endif
764        else
765        {
766            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
767        }
768        if (bkpinfo->manual_cd_tray) {
769            if (bkpinfo->call_before_iso[0] == '\0') {
770            sprintf(bkpinfo->call_before_iso,
771                        "%s -o %s/temporary.iso . 2>> _ERR_",
772                        mondo_mkisofs_sz, bkpinfo->tmpdir);
773                } else {
774                strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
775                sprintf (bkpinfo->call_before_iso,
776                                    "( %s -o %s/temporary.iso . 2>> _ERR_ ; %s )",
777                        mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
778            }
779            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
780            sprintf(bkpinfo->call_make_iso,
781                    "%s %s -v %s fs=4m dev=%s speed=%d %s/temporary.iso",
782                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
783                    extra_cdrom_params, bkpinfo->media_device,
784                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
785        } else {
786            sprintf(bkpinfo->call_make_iso,
787                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
788                    mondo_mkisofs_sz, cdr_exe,
789                    (bkpinfo->please_dont_eject) ? " " : "-eject",
790                    extra_cdrom_params, bkpinfo->media_device,
791                    bkpinfo->cdrw_speed);
792        }
793    }                           // end of CD code
794
795    /*
796       if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
797       {
798       sprintf (tmp,
799       "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
800       bkpinfo->media_device, bkpinfo->internal_tape_block_size);
801       if (system(tmp))
802       {
803       retval++;
804       fprintf (stderr,
805       "Cannot write to tape device. Is the tape set read-only?\n");
806       }
807       } // end of tape code
808     */
809
810
811    if (bkpinfo->backup_media_type == iso) {
812
813/* Patch by Conor Daly <conor.daly@met.ie>
814 * 23-june-2004
815 * Break up isodir into iso_mnt and iso_path
816 * These will be used along with iso-dev at restore time
817 * to locate the ISOs where ever they're mounted
818 */
819
820        log_it("isodir = %s", bkpinfo->isodir);
821        sprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1",
822                bkpinfo->isodir);
823        log_it("command = %s", command);
824        log_it("res of it = %s",
825               call_program_and_get_last_line_of_output(command));
826        sprintf(iso_dev, "%s",
827                call_program_and_get_last_line_of_output(command));
828        sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
829        write_one_liner_data_file(tmp,
830                                  call_program_and_get_last_line_of_output
831                                  (command));
832
833        sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
834                iso_dev);
835        log_it("command = %s", command);
836        log_it("res of it = %s",
837               call_program_and_get_last_line_of_output(command));
838        sprintf(iso_mnt, "%s",
839                call_program_and_get_last_line_of_output(command));
840        sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
841        write_one_liner_data_file(tmp,
842                                  call_program_and_get_last_line_of_output
843                                  (command));
844        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
845        sprintf(iso_tmp, "%s", bkpinfo->isodir);
846        if (strlen(iso_tmp) < strlen(iso_mnt)) {
847            iso_path[0] = '\0';
848        } else {
849            sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
850        }
851        sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
852        write_one_liner_data_file(tmp, iso_path);
853        log_it("isodir: %s", iso_path);
854        sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
855        write_one_liner_data_file(tmp, bkpinfo->prefix);
856        log_it("iso-prefix: %s",  bkpinfo->prefix);
857
858/* End patch */
859    }                           // end of iso code
860
861    if (bkpinfo->backup_media_type == nfs) {
862        strcpy(hostname, bkpinfo->nfs_mount);
863        colon = strchr(hostname, ':');
864        if (!colon) {
865            log_it("nfs mount doesn't have a colon in it");
866            retval++;
867        } else {
868            struct hostent *hent;
869
870            *colon = '\0';
871            hent = gethostbyname(hostname);
872            if (!hent) {
873                log_it("Can't resolve NFS mount (%s): %s", hostname,
874                       hstrerror(h_errno));
875                retval++;
876            } else {
877                strcpy(ip_address, inet_ntoa
878                       ((struct in_addr)
879                        *((struct in_addr *) hent->h_addr)));
880                strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
881                strcpy(bkpinfo->nfs_mount, ip_address);
882            }
883        }
884        store_nfs_config();
885    }
886
887    log_it("Finished processing incoming params");
888    if (retval) {
889        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
890    }
891    sprintf(tmp, "%s", MONDO_TMPISOS);  /* added #define 22 apr 2002 */
892    if (does_file_exist(tmp)) {
893        unlink(tmp);
894    }
895    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
896        log_it("tmpdir or scratchdir are blank/missing");
897        retval++;
898    }
899    if (bkpinfo->include_paths[0] == '\0') {
900        //      fatal_error ("Why no backup path?");
901        strcpy(bkpinfo->include_paths, "/");
902    }
903    chmod(bkpinfo->scratchdir, 0700);
904    chmod(bkpinfo->tmpdir, 0700);
905    g_backup_media_type = bkpinfo->backup_media_type;
906    paranoid_free(mtpt);
907    paranoid_free(extra_cdrom_params);
908    paranoid_free(mondo_mkisofs_sz);
909    paranoid_free(command);
910    paranoid_free(hostname);
911    paranoid_free(ip_address);
912    paranoid_free(cdr_exe);
913    paranoid_free(tmp);
914    paranoid_free(iso_dev);
915    paranoid_free(iso_mnt);
916    paranoid_free(iso_tmp);
917    paranoid_free(iso_path);
918    return (retval);
919}
920
921
922
923/**
924 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
925 * Seeds the random-number generator, loads important modules, checks the sanity
926 * of the user's Linux distribution, and deletes logfile.
927 * @param bkpinfo The backup information structure. Will be initialized.
928 * @return number of errors (0 for success)
929 */
930int pre_param_configuration()
931{
932    int res = 0;
933    char *tmp = NULL;
934
935    make_hole_for_dir(MNT_CDROM);
936    assert(bkpinfo != NULL);
937    srandom((unsigned long) (time(NULL)));
938    insmod_crucial_modules();
939    if (bkpinfo->disaster_recovery) {
940        if (!does_nonMS_partition_exist()) {
941            fatal_error
942                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
943        }
944    }
945
946    unlink(MONDO_TRACEFILE);
947    asprintf(&tmp,"rm -Rf %s/changed.files*",MINDI_CACHE);
948    run_program_and_log_output(tmp, FALSE);
949    paranoid_free(tmp);
950    if (find_and_store_mondoarchives_home(g_mondo_home)) {
951        fprintf(stderr,
952                "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");
953        res++;
954        return (res);
955    }
956    res += some_basic_system_sanity_checks();
957    if (res) {
958        log_it("Your distribution did not pass Mondo's sanity test.");
959    }
960    g_current_media_number = 1;
961    bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
962    return (res);
963}
964
965void setup_tmpdir() {
966   
967    char *tmp = NULL;
968    char *p = NULL;
969
970    if (getenv("TMPDIR")) {
971        asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
972    } else if (getenv("TMP")) {
973        asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
974    } else {
975        asprintf(&tmp, "/tmp/mondo.tmp.XXXXXX");
976    }
977    p = mkdtemp(tmp);
978    if (p == NULL) {
979        log_it("Failed to create global tmp directory %s for Mondo.",tmp);
980        finish(-1);
981    }
982    strcpy(bkpinfo->tmpdir,p);
983    paranoid_free(tmp);
984    //sprintf(bkpinfo->tmpdir, "%s/tmpfs/mondo.tmp.%d", "/tmp", (int) (random() % 32768));  // for mondorestore
985}
986
987
988/**
989 * Reset all fields of the backup information structure to a sensible default.
990 * @param bkpinfo The @c bkpinfo to reset.
991 */
992void reset_bkpinfo()
993{
994    int i;
995
996    log_msg(1, "Hi");
997    assert(bkpinfo != NULL);
998    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
999
1000    /* special case for tmpdir as used eveywhere after */
1001    setup_tmpdir();
1002
1003    bkpinfo->manual_cd_tray = FALSE;
1004    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
1005    bkpinfo->media_device[0] = '\0';
1006    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
1007        bkpinfo->media_size[i] = -1;
1008    }
1009    bkpinfo->boot_loader = '\0';
1010    bkpinfo->boot_device[0] = '\0';
1011    bkpinfo->zip_exe[0] = '\0';
1012    bkpinfo->zip_suffix[0] = '\0';
1013    bkpinfo->restore_path[0] = '\0';
1014    bkpinfo->use_lzo = FALSE;
1015    bkpinfo->use_gzip = FALSE;
1016    bkpinfo->do_not_compress_these[0] = '\0';
1017    bkpinfo->verify_data = FALSE;
1018    bkpinfo->backup_data = FALSE;
1019    bkpinfo->restore_data = FALSE;
1020    bkpinfo->disaster_recovery =
1021        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
1022    if (bkpinfo->disaster_recovery) {
1023        strcpy(bkpinfo->isodir, "/");
1024    } else {
1025        strcpy(bkpinfo->isodir, "/root/images/mondo");
1026    }
1027    strcpy(bkpinfo->prefix, STD_PREFIX);
1028
1029    bkpinfo->scratchdir[0] = '\0';
1030    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
1031    bkpinfo->optimal_set_size = 0;
1032    bkpinfo->backup_media_type = none;
1033    strcpy(bkpinfo->include_paths, "/");
1034    bkpinfo->exclude_paths[0] = '\0';
1035    bkpinfo->call_before_iso[0] = '\0';
1036    bkpinfo->call_make_iso[0] = '\0';
1037    bkpinfo->call_burn_iso[0] = '\0';
1038    bkpinfo->call_after_iso[0] = '\0';
1039    bkpinfo->image_devs[0] = '\0';
1040    bkpinfo->postnuke_tarball[0] = '\0';
1041    bkpinfo->kernel_path[0] = '\0';
1042    bkpinfo->nfs_mount[0] = '\0';
1043    bkpinfo->nfs_remote_dir[0] = '\0';
1044    bkpinfo->wipe_media_first = FALSE;
1045    bkpinfo->differential = FALSE;
1046    bkpinfo->cdrw_speed = 0;
1047// patch by Herman Kuster 
1048    bkpinfo->differential = 0;
1049// patch end
1050    bkpinfo->compression_level = 3;
1051}
1052
1053
1054
1055
1056/**
1057 * Get the remaining free space (in MB) on @p partition.
1058 * @param partition The partition to check free space on (either a device or a mountpoint).
1059 * @return The free space on @p partition, in MB.
1060 */
1061long free_space_on_given_partition(char *partition)
1062{
1063    char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
1064    long res;
1065
1066    assert_string_is_neither_NULL_nor_zerolength(partition);
1067
1068    sprintf(command, "df -m -P %s &> /dev/null", partition);
1069    if (system(command)) {
1070        return (-1);
1071    }                           // partition does not exist
1072    sprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
1073            partition);
1074    strcpy(out_sz, call_program_and_get_last_line_of_output(command));
1075    if (strlen(out_sz) == 0) {
1076        return (-1);
1077    }                           // error within df, probably
1078    res = atol(out_sz);
1079    return (res);
1080}
1081
1082
1083
1084/**
1085 * Check the user's system for sanity. Checks performed:
1086 * - make sure user has enough RAM (32mb required, 64mb recommended)
1087 * - make sure user has enough free space in @c /
1088 * - check kernel for ramdisk support
1089 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
1090 * - make sure CD-ROM is unmounted
1091 * - make sure /etc/modules.conf exists
1092 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
1093 *
1094 * @return number of problems with the user's setup (0 for success)
1095 */
1096int some_basic_system_sanity_checks()
1097{
1098
1099    /*@ buffers ************ */
1100    char tmp[MAX_STR_LEN];
1101    //  char command[MAX_STR_LEN];
1102
1103    /*@ int's *************** */
1104    int retval = 0;
1105    long Lres;
1106
1107
1108    mvaddstr_and_log_it(g_currentY, 0,
1109                        "Checking sanity of your Linux distribution");
1110#ifndef __FreeBSD__
1111    if (system("which mkfs.vfat &> /dev/null")
1112        && !system("which mkfs.msdos &> /dev/null")) {
1113        log_it
1114            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
1115        run_program_and_log_output
1116            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
1117    }
1118    strcpy(tmp,
1119           call_program_and_get_last_line_of_output
1120           ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
1121    if (atol(tmp) < 35000) {
1122        retval++;
1123        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
1124    }
1125    if (atol(tmp) < 66000) {
1126        log_to_screen
1127            ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
1128    }
1129#endif
1130
1131    Lres = free_space_on_given_partition(MINDI_CACHE);
1132    log_it("Free space on partition of %s = %ld MB", MINDI_CACHE, Lres);
1133
1134    if (Lres < 50) {
1135        sprintf(tmp, "The partition of %s has <50MB free. Please free up space or enlarge the partition or make %s a symbolic link.", MINDI_CACHE, MINDI_CACHE); 
1136        fatal_error(tmp);
1137    }
1138
1139    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
1140        retval++;
1141        log_to_screen
1142            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
1143        fatal_error
1144            ("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. :)");
1145    }
1146#ifndef __FreeBSD__
1147    if (run_program_and_log_output
1148        ("grep ramdisk /proc/devices", FALSE)) {
1149        if (!ask_me_yes_or_no
1150            ("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?"))
1151        {
1152            //          retval++;
1153            log_to_screen
1154                ("It looks as if your kernel lacks ramdisk and initrd support.");
1155            log_to_screen
1156                ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
1157        }
1158    }
1159#endif
1160    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
1161    retval += whine_if_not_found("mkisofs");
1162    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
1163        retval += whine_if_not_found("cdrecord");
1164    }
1165    retval += whine_if_not_found("bzip2");
1166    retval += whine_if_not_found("gzip");
1167    retval += whine_if_not_found("awk");
1168    retval += whine_if_not_found("md5sum");
1169    retval += whine_if_not_found("strings");
1170    retval += whine_if_not_found("mindi");
1171    retval += whine_if_not_found("buffer");
1172
1173    // abort if Windows partition but no ms-sys and parted
1174    if (!run_program_and_log_output
1175        ("mount | grep -w vfat | grep -vE \"/dev/fd|nexdisk\"", 0)
1176        ||
1177        !run_program_and_log_output
1178        ("mount | grep -w dos | grep -vE \"/dev/fd|nexdisk\"", 0)) {
1179        log_to_screen("I think you have a Windows 9x partition.");
1180        retval += whine_if_not_found("parted");
1181#ifndef __IA64__
1182        /* IA64 always has one vfat partition for EFI even without Windows */
1183        // retval +=
1184        if (!find_home_of_exe("ms-sys")) {
1185            log_to_screen("Please install ms-sys just in case.");
1186        }
1187#endif
1188    }
1189
1190    if (!find_home_of_exe("cmp")) {
1191        if (!find_home_of_exe("true")) {
1192            whine_if_not_found("cmp");
1193        } else {
1194            log_to_screen
1195                ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1196            if (run_program_and_log_output
1197                ("cp -f `which true` /usr/bin/cmp", 0)) {
1198                fatal_error("Failed to create dummy 'cmp' file.");
1199            }
1200        }
1201    }
1202    run_program_and_log_output
1203        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1204    strcpy(tmp,
1205           call_program_and_get_last_line_of_output
1206           ("mount | grep -E \"cdr(om|w)\""));
1207    if (strcmp("", tmp)) {
1208        if (strstr(tmp, "autofs")) {
1209            log_to_screen
1210                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1211            log_to_screen
1212                ("if a CD actually is inserted. If a CD is inserted, please");
1213            log_to_screen("eject it. Thank you.");
1214            log_it
1215                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1216        } else
1217            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1218            retval++;
1219            fatal_error
1220                ("Your CD-ROM drive is mounted. Please unmount it.");
1221        }
1222    }
1223#ifndef __FreeBSD__
1224    if (!does_file_exist("/etc/modules.conf")) {
1225        if (does_file_exist("/etc/conf.modules")) {
1226            log_it("Linking /etc/modules.conf to /etc/conf.modules");
1227            run_program_and_log_output
1228                ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
1229        } else if (does_file_exist("/etc/modprobe.d")) {
1230            log_it
1231                ("Directory /etc/modprobe.d found. mindi will use its contents.");
1232        } else if (does_file_exist("/etc/modprobe.conf")) {
1233            log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
1234            run_program_and_log_output
1235                ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
1236        } else {
1237            retval++;
1238            log_to_screen
1239                ("Please find out what happened to /etc/modules.conf");
1240        }
1241    }
1242#endif
1243
1244    run_program_and_log_output("cat /etc/fstab", 5);
1245#ifdef __FreeBSD__
1246    run_program_and_log_output("vinum printconfig", 5);
1247#else
1248    run_program_and_log_output("cat /etc/raidtab", 5);
1249#endif
1250
1251    if (run_program_and_log_output("mindi -V", 1)) {
1252        log_to_screen("Could not ascertain mindi's version number.");
1253        log_to_screen
1254            ("You have not installed Mondo and/or Mindi properly.");
1255        log_to_screen("Please uninstall and reinstall them both.");
1256        fatal_error("Please reinstall Mondo and Mindi.");
1257    }
1258    sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1259    if (run_program_and_log_output(tmp, 5)) {
1260        sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1261        log_to_screen(tmp);
1262        log_to_screen
1263            ("Please run that command by hand and examine /var/log/mindi.log");
1264        log_to_screen
1265            ("for more information. Perhaps your /etc/fstab file is insane.");
1266        log_to_screen
1267            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1268        retval++;
1269    }
1270
1271    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1272        && !does_file_exist("/etc/raidtab")) {
1273        log_to_screen
1274            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1275        create_raidtab_from_mdstat("/etc/raidtab");
1276    }
1277
1278    if (retval) {
1279        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1280    } else {
1281        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1282    }
1283    return (retval);
1284}
1285
1286/**
1287 * Retrieve the line containing @p label from the config file.
1288 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1289 * @param label What to read from the file.
1290 * @param value Where to put it.
1291 * @return 0 for success, 1 for failure.
1292 */
1293int read_cfg_var(char *config_file, char *label, char *value)
1294{
1295    /*@ buffer ****************************************************** */
1296    char command[MAX_STR_LEN * 2];
1297    char tmp[MAX_STR_LEN];
1298
1299    /*@ end vars *************************************************** */
1300
1301    assert_string_is_neither_NULL_nor_zerolength(config_file);
1302    assert_string_is_neither_NULL_nor_zerolength(label);
1303    if (!does_file_exist(config_file)) {
1304        sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1305                config_file);
1306        log_to_screen(tmp);
1307        value[0] = '\0';
1308        return (1);
1309    } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1310        log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1311        return (0);
1312    } else {
1313        sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1314                label, config_file);
1315        strcpy(value, call_program_and_get_last_line_of_output(command));
1316        if (strlen(value) == 0) {
1317            return (1);
1318        } else {
1319            return (0);
1320        }
1321    }
1322}
1323
1324
1325
1326/**
1327 * Remount @c supermount if it was unmounted earlier.
1328 */
1329void remount_supermounts_if_necessary()
1330{
1331    if (g_remount_cdrom_at_end) {
1332        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1333    }
1334    if (g_remount_floppy_at_end) {
1335        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1336    }
1337}
1338
1339/**
1340 * Unmount @c supermount if it's mounted.
1341 */
1342void unmount_supermounts_if_necessary()
1343{
1344    if (run_program_and_log_output
1345        ("mount | grep cdrom | grep super", FALSE) == 0) {
1346        g_remount_cdrom_at_end = TRUE;
1347        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1348    }
1349    if (run_program_and_log_output
1350        ("mount | grep floppy | grep super", FALSE) == 0) {
1351        g_remount_floppy_at_end = TRUE;
1352        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1353    }
1354}
1355
1356/**
1357 * Whether we had to stop autofs (if so, restart it at end).
1358 */
1359bool g_autofs_stopped = FALSE;
1360
1361/**
1362 * Path to the autofs initscript ("" if none exists).
1363 */
1364char g_autofs_exe[MAX_STR_LEN];
1365
1366/**
1367 * Autofs initscript in Xandros Linux distribution.
1368 */
1369#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1370
1371/**
1372 * Autofs initscript in most Linux distributions.
1373 */
1374#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1375
1376/**
1377 * If autofs is mounted, stop it (restart at end).
1378 */
1379void stop_autofs_if_necessary()
1380{
1381    char tmp[MAX_STR_LEN];
1382
1383    g_autofs_exe[0] = '\0';
1384    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1385        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1386    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1387        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1388    }
1389
1390    if (!g_autofs_exe[0]) {
1391        log_msg(3, "No autofs detected.");
1392    } else {
1393        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1394// FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1395        sprintf(tmp, "%s stop", g_autofs_exe);
1396        if (run_program_and_log_output(tmp, 2)) {
1397            log_it("Failed to stop autofs - I assume it wasn't running");
1398        } else {
1399            g_autofs_stopped = TRUE;
1400            log_it("Stopped autofs OK");
1401        }
1402    }
1403}
1404
1405/**
1406 * If autofs was stopped earlier, restart it.
1407 */
1408void restart_autofs_if_necessary()
1409{
1410    char tmp[MAX_STR_LEN];
1411
1412    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1413        log_msg(3, "No autofs detected.");
1414        return;
1415    }
1416    sprintf(tmp, "%s start", g_autofs_exe);
1417    if (run_program_and_log_output(tmp, 2)) {
1418        log_it("Failed to start autofs");
1419    } else {
1420        g_autofs_stopped = FALSE;
1421        log_it("Started autofs OK");
1422    }
1423}
1424
1425
1426/**
1427 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1428 */
1429void mount_boot_if_necessary()
1430{
1431    char tmp[MAX_STR_LEN];
1432    char command[MAX_STR_LEN];
1433
1434    log_msg(1, "Started sub");
1435    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1436    g_boot_mountpt[0] = '\0';
1437    log_msg(4, "Done. Great. Seeting command to something");
1438    strcpy(command,
1439           "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[   ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1440    log_msg(4, "Cool. Command = '%s'", command);
1441    strcpy(tmp, call_program_and_get_last_line_of_output(command));
1442    log_msg(4, "tmp = '%s'", tmp);
1443    if (tmp[0]) {
1444        log_it("/boot is at %s according to /etc/fstab", tmp);
1445        if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1446            if (!run_program_and_log_output("mount /boot", 5)) {
1447                strcpy(g_boot_mountpt, "/boot");
1448                log_msg(1, "Mounted /boot");
1449            } else {
1450                log_it("...ignored cos it's a label or uuid :-)");
1451            }
1452        } else {
1453            sprintf(command, "mount | grep -E '^%s'", tmp);
1454            log_msg(3, "command = %s", command);
1455            if (run_program_and_log_output(command, 5)) {
1456                strcpy(g_boot_mountpt, tmp);
1457                sprintf(tmp,
1458                        "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1459                        g_boot_mountpt);
1460                log_it(tmp);
1461                sprintf(tmp, "mount %s", g_boot_mountpt);
1462                if (run_program_and_log_output(tmp, 5)) {
1463                    g_boot_mountpt[0] = '\0';
1464                    log_msg(1, "Plan B");
1465                    if (!run_program_and_log_output("mount /boot", 5)) {
1466                        strcpy(g_boot_mountpt, "/boot");
1467                        log_msg(1, "Plan B worked");
1468                    } else {
1469                        log_msg(1,
1470                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1471                    }
1472                }
1473            }
1474        }
1475    }
1476    log_msg(1, "Ended sub");
1477}
1478
1479
1480/**
1481 * If we mounted /boot earlier, unmount it.
1482 */
1483void unmount_boot_if_necessary()
1484{
1485    char tmp[MAX_STR_LEN];
1486
1487    log_msg(3, "starting");
1488    if (g_boot_mountpt[0]) {
1489        sprintf(tmp, "umount %s", g_boot_mountpt);
1490        if (run_program_and_log_output(tmp, 5)) {
1491            log_it("WARNING - unable to unmount /boot");
1492        }
1493    }
1494    log_msg(3, "leaving");
1495}
1496
1497
1498
1499/**
1500 * Write a line to a configuration file. Writes a line of the form,
1501 * @c label @c value.
1502 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1503 * @param label What to call this bit of data you're writing.
1504 * @param value The bit of data you're writing.
1505 * @return 0 for success, 1 for failure.
1506 */
1507int write_cfg_var(char *config_file, char *label, char *value)
1508{
1509    /*@ buffers ***************************************************** */
1510    char command[MAX_STR_LEN * 2];
1511    char tempfile[MAX_STR_LEN];
1512    char tmp[MAX_STR_LEN];
1513
1514
1515    /*@ end vars *************************************************** */
1516    assert_string_is_neither_NULL_nor_zerolength(config_file);
1517    assert_string_is_neither_NULL_nor_zerolength(label);
1518    assert(value != NULL);
1519    if (!does_file_exist(config_file)) {
1520        sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1521                config_file);
1522        log_to_screen(tmp);
1523        return (1);
1524    }
1525    sprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1526    if (does_file_exist(config_file)) {
1527        sprintf(command, "grep -vE '^%s .*$' %s > %s",
1528                label, config_file, tempfile);
1529        paranoid_system(command);
1530    }
1531    sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1532    paranoid_system(command);
1533    sprintf(command, "mv -f %s %s", tempfile, config_file);
1534    paranoid_system(command);
1535    unlink(tempfile);
1536    return (0);
1537}
1538
1539
1540/**
1541 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1542 * information to the logfile.
1543 */
1544void standard_log_debug_msg(int debug_level, const char *szFile,
1545                            const char *szFunction, int nLine,
1546                            const char *fmt, ...)
1547{
1548    va_list args;
1549    int i;
1550    static int depth = 0;
1551    char *tmp;
1552    FILE *fout;
1553
1554    if (depth > 5) {
1555        depth--;
1556        return;
1557    }
1558    depth++;
1559
1560    malloc_string(tmp);
1561
1562    if (debug_level <= g_loglevel) {
1563        va_start(args, fmt);
1564        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1565            return;
1566        }                       // fatal_error("Failed to openout to logfile - sheesh..."); }
1567
1568        // add tabs to distinguish log levels
1569        if (debug_level > 0) {
1570            for (i = 1; i < debug_level; i++)
1571                fprintf(fout, "\t");
1572            if (getpid() == g_main_pid)
1573                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1574                        nLine);
1575            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1576                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1577                        nLine);
1578            else
1579                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1580                        szFunction, nLine);
1581        }
1582        vfprintf(fout, fmt, args);
1583
1584        // do not slow down the progran if standard debug level
1585        // must be enabled: if no flush, the log won't be up-to-date if there
1586        // is a segfault
1587        //if (g_dwDebugLevel != 1)
1588
1589        va_end(args);
1590        fprintf(fout, "\n");
1591        paranoid_fclose(fout);
1592    }
1593    depth--;
1594    paranoid_free(tmp);
1595}
1596
1597/**
1598 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1599 */
1600void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1601                       ...) = standard_log_debug_msg;
1602
1603
1604/**
1605 * If @p y, malloc @p x, else free @p x.
1606 * @bug This function seems orphaned. Please remove.
1607 */
1608#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1609
1610/**
1611 * Allocate or free important globals, depending on @p mal.
1612 * @param mal If TRUE, malloc; if FALSE, free.
1613 */
1614void do_libmondo_global_strings_thing(int mal)
1615{
1616    if (mal) {
1617        iamhere("Malloc'ing globals");
1618        malloc_string(g_boot_mountpt);
1619        malloc_string(g_mondo_home);
1620        malloc_string(g_tmpfs_mountpt);
1621        malloc_string(g_erase_tmpdir_and_scratchdir);
1622        malloc_string(g_serial_string);
1623        malloc_string(g_magicdev_command);
1624    } else {
1625        iamhere("Freeing globals");
1626        paranoid_free(g_boot_mountpt);
1627        paranoid_free(g_mondo_home);
1628        paranoid_free(g_tmpfs_mountpt);
1629        paranoid_free(g_erase_tmpdir_and_scratchdir);
1630        paranoid_free(g_serial_string);
1631        paranoid_free(g_magicdev_command);
1632    }
1633
1634    /*
1635       char**list_of_arrays[] = {
1636       &g_boot_mountpt,
1637       &g_mondo_home,
1638       &g_tmpfs_mountpt,
1639       &g_erase_tmpdir_and_scratchdir,
1640       &g_serial_string,
1641       &g_magicdev_command,
1642       NULL};
1643
1644       char**ppcurr;
1645       int i;
1646
1647       for(i=0;list_of_arrays[i];i++)
1648       {
1649       log_msg(5, "Allocating %d", i);
1650       ppcurr = list_of_arrays[i];
1651       if (mal)
1652       { *ppcurr = malloc(MAX_STR_LEN); }
1653       else
1654       {
1655       if (*ppcurr)
1656       {
1657       free(*ppcurr);
1658       }
1659       }
1660       }
1661       log_msg(5, "Returning");
1662     */
1663}
1664
1665/**
1666 * Allocate important globals.
1667 * @see do_libmondo_global_strings_thing
1668 */
1669void malloc_libmondo_global_strings(void)
1670{
1671    do_libmondo_global_strings_thing(1);
1672}
1673
1674/**
1675 * Free important globals.
1676 * @see do_libmondo_global_strings_thing
1677 */
1678void free_libmondo_global_strings(void)
1679{
1680    do_libmondo_global_strings_thing(0);
1681}
1682
1683
1684
1685/**
1686 * Stop @c magicdev if it's running.
1687 * The command used to start it is saved in @p g_magicdev_command.
1688 */
1689void stop_magicdev_if_necessary()
1690{
1691    strcpy(g_magicdev_command,
1692           call_program_and_get_last_line_of_output
1693           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1694    if (g_magicdev_command[0]) {
1695        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1696        paranoid_system("killall magicdev");
1697    }
1698}
1699
1700
1701/**
1702 * Restart magicdev if it was stopped.
1703 */
1704void restart_magicdev_if_necessary()
1705{
1706    char *tmp;
1707
1708    malloc_string(tmp);
1709    if (g_magicdev_command && g_magicdev_command[0]) {
1710        sprintf(tmp, "%s &", g_magicdev_command);
1711        paranoid_system(tmp);
1712    }
1713    paranoid_free(tmp);
1714}
1715
1716/* @} - end of utilityGroup */
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