source: branches/stable/mondo/mondo/common/libmondo-tools.c @ 501

Last change on this file since 501 was 501, checked in by bcornec, 14 years ago
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1/* libmondo-tools.c                                  misc tools
2   $Id: libmondo-tools.c 501 2006-04-29 18:59:08Z bcornec $
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 "libmondo-tools.h"
177#include "newt-specific-EXT.h"
178#include "libmondo-files-EXT.h"
179#include "libmondo-fork-EXT.h"
180#include "libmondo-raid-EXT.h"
181#include <sys/socket.h>
182#include <netdb.h>
183#include <netinet/in.h>
184#include <arpa/inet.h>
185
186/*@unused@*/
187//static char cvsid[] = "$Id: libmondo-tools.c 501 2006-04-29 18:59:08Z bcornec $";
188
189extern int g_tape_buffer_size_MB;
190extern char *g_erase_tmpdir_and_scratchdir;
191extern char *g_serial_string;
192extern bool g_text_mode;
193extern int g_currentY;
194extern int g_current_media_number;
195
196/**
197 * @addtogroup globalGroup
198 * @{
199 */
200bool g_remount_cdrom_at_end,    ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
201 g_remount_floppy_at_end;       ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
202bool g_cd_recovery;             ///< TRUE if we're making an "autonuke" backup.
203double g_kernel_version;
204
205/**
206 * The place where /boot is mounted.
207 */
208char *g_boot_mountpt = NULL;
209
210/**
211 * The location of Mondo's home directory.
212 */
213char *g_mondo_home = NULL;
214
215/**
216 * The serial string (used to differentiate between backups) of the current backup.
217 */
218char *g_serial_string = NULL;
219
220/**
221 * The location where tmpfs is mounted, or "" if it's not mounted.
222 */
223char *g_tmpfs_mountpt = NULL;
224char *g_magicdev_command = NULL;
225
226/**
227 * The default maximum level to log messages at or below.
228 */
229int g_loglevel = DEFAULT_DEBUG_LEVEL;
230
231/* @} - end of globalGroup */
232
233
234extern pid_t g_buffer_pid;
235extern pid_t g_main_pid;
236
237extern t_bkptype g_backup_media_type;
238
239extern bool am_I_in_disaster_recovery_mode(void);
240
241
242/**
243 * @addtogroup utilityGroup
244 * @{
245 */
246/**
247 * Assertion handler. Prints a friendly message to the user,
248 * offering to ignore all, dump core, break to debugger,
249 * exit, or ignore. Intended to be used with an assert() macro.
250 *
251 * @param file The file in which the assertion triggered.
252 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
253 * @param line The line number of the assert() statement.
254 * @param exp The expression that failed (as a string).
255 */
256void _mondo_assert_fail(const char *file,
257                        const char *function, int line, const char *exp)
258{
259    static int ignoring_assertions = 0;
260    bool is_valid = TRUE;
261
262    log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
263           function);
264    if (ignoring_assertions) {
265        log_it("Well, the user doesn't care...");
266        return;
267    }
268#ifndef _XWIN
269    if (!g_text_mode)
270        newtSuspend();
271#endif
272    printf(_("ASSERTION FAILED: `%s'\n"), exp);
273    printf(_("\tat %s:%d in %s\n\n"), file, line, function);
274    printf(_("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? "));
275    do {
276        is_valid = TRUE;
277        switch (toupper(getchar())) {
278        case 'A':               // ignore (A)ll
279            ignoring_assertions = 1;
280            break;
281        case 'B':               // a(B)ort
282            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
283            raise(SIGABRT);
284            break;              /* "can't get here" */
285        case 'D':               // (D)ebug, aka asm("int 3")
286#ifdef __IA32__
287            __asm__ __volatile__("int $3"); // break to debugger
288#endif
289            break;
290        case 'E':               // (E)xit
291            fatal_error("Failed assertion -- see above for details");
292            break;              /* "can't get here" */
293        case 'I':               // (I)gnore
294            break;
295            /* These next two work as follows:
296               the `default' catches the user's invalid choice and says so;
297               the '\n' catches the newline on the end and prints the prompt again.
298             */
299        case '\n':
300            printf
301                (_("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? "));
302            break;
303        default:
304            is_valid = FALSE;
305            printf(_("Invalid choice.\n"));
306            break;
307        }
308    } while (!is_valid);
309
310    if (ignoring_assertions) {
311        log_it("Ignoring ALL assertions from now on.");
312    } else {
313        log_it("Ignoring assertion: %s", exp);
314    }
315
316    getchar();                  // skip \n
317
318#ifndef _XWIN
319    if (!g_text_mode)
320        newtResume();
321#endif
322}
323
324/**
325 * Clean's up users' KDE desktops.
326 * @bug Details about this function are unknown.
327 */
328void clean_up_KDE_desktop_if_necessary(void)
329{
330    char *tmp;
331
332    malloc_string(tmp);
333    strcpy(tmp,
334           "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
335file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
336awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
337else { print $0;};}' $file.old  > $file ; fi ; done");
338    run_program_and_log_output(tmp, 5);
339    paranoid_free(tmp);
340}
341
342
343/**
344 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
345 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
346 *
347 * @param home_sz String to store the home directory ("" if it could not be found).
348 * @return 0 for success, nonzero for failure.
349 */
350int find_and_store_mondoarchives_home(char *home_sz)
351{
352    assert(home_sz != NULL);
353    strcpy(home_sz, MONDO_SHARE);
354    return (0);
355}
356
357
358char *get_architecture()
359{
360#ifdef __IA32__
361    return ("i386");
362#endif
363#ifdef __IA64__
364    return ("ia64");
365#endif
366    return ("unknown");
367}
368
369
370
371double get_kernel_version()
372{
373    char *p, tmp[200];
374    double d;
375#ifdef __FreeBSD__
376    // JOSH - FIXME :)
377    d = 5.2;                    // :-)
378#else
379    strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
380    p = strchr(tmp, '.');
381    if (p) {
382        p = strchr(++p, '.');
383        if (p) {
384            while (*p) {
385                *p = *(p + 1);
386                p++;
387            }
388        }
389    }
390//  log_msg(1, "tmp = '%s'", tmp);
391    d = atof(tmp);
392#endif
393    log_msg(1, "g_kernel_version = %f", d);
394    return (d);
395}
396
397
398
399
400
401/**
402 * Get the current time.
403 * @return number of seconds since the epoch.
404 */
405long get_time()
406{
407    return (long) time((void *) 0);
408}
409
410
411
412
413
414
415
416/**
417 * Initialize a RAID volume structure, setting fields to zero. The
418 * actual hard drive is unaffected.
419 *
420 * @param raidrec The RAID volume structure to initialize.
421 * @note This function is system dependent.
422 */
423#ifdef __FreeBSD__
424void initialize_raidrec(struct vinum_volume *raidrec)
425{
426    int i, j;
427    raidrec->volname[0] = '\0';
428    raidrec->plexes = 0;
429    for (i = 0; i < 9; ++i) {
430        raidrec->plex[i].raidlevel = -1;
431        raidrec->plex[i].stripesize = 0;
432        raidrec->plex[i].subdisks = 0;
433        for (j = 0; j < 9; ++j) {
434            strcpy(raidrec->plex[i].sd[j].which_device, "");
435        }
436    }
437}
438#else
439void initialize_raidrec(struct raid_device_record *raidrec)
440{
441    assert(raidrec != NULL);
442    raidrec->raid_device[0] = '\0';
443    raidrec->raid_level = 0;
444    raidrec->chunk_size = 4;
445    raidrec->persistent_superblock = 1;
446    raidrec->data_disks.entries = 0;
447    raidrec->spare_disks.entries = 0;
448    raidrec->parity_disks.entries = 0;
449    raidrec->failed_disks.entries = 0;
450    raidrec->additional_vars.entries = 0;
451}
452#endif
453
454
455
456
457/**
458 * Insert modules that Mondo requires.
459 * Currently inserts @c dos, @c fat, @c vfat, and @c osst for Linux;
460 * @c msdosfs and @c ext2fs for FreeBSD.
461 */
462void insmod_crucial_modules(void)
463{
464#ifdef __FreeBSD__
465    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
466    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
467#else
468    system("modprobe dos &> /dev/null");
469    system("modprobe fat &> /dev/null");
470    system("modprobe vfat &> /dev/null");
471    //  system("modprobe osst &> /dev/null");
472#endif
473}
474
475
476/**
477 * Log a trace message to the trace file.
478 * @bug This function seems orphaned. Please remove.
479 */
480void log_trace(char *o)
481{
482    /*@ pointers **************************************************** */
483    FILE *fout;
484
485    /*@ buffers ***************************************************** */
486    char output[MAX_STR_LEN];
487
488    /*@ int    ****************************************************** */
489    int i;
490
491    /*@ end vars *************************************************** */
492
493    if (o[0] == '\0') {
494        return;
495    }
496    strcpy(output, o);
497    i = (int) strlen(output);
498    if (i <= 0) {
499        return;
500    }
501    if (output[i - 1] < 32) {
502        output[i - 1] = '\0';
503    }
504    if (g_text_mode
505        /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
506        printf("%s\n", output);
507    }
508
509    fout = fopen(MONDO_TRACEFILE, "a");
510    if (fout) {
511        fprintf(fout, "%s\n", output);
512        paranoid_fclose(fout);
513    } else {
514        log_OS_error("Cannot write to tracefile");
515    }
516}
517
518
519
520
521
522/**
523 * Finish configuring the backup information structure. Call this function
524 * to set the parameters that depend on those that can be given on the command
525 * line.
526 *
527 * @param bkpinfo The backup information structure. Fields modified/used:
528 * - Used: @c bkpinfo->backup_data
529 * - Used: @c bkpinfo->backup_media_type
530 * - Used: @c bkpinfo->cdrw_speed
531 * - Used: @c bkpinfo->compression_level
532 * - Used: @c bkpinfo->include_paths
533 * - Used: @c bkpinfo->prefix
534 * - Used: @c bkpinfo->isodir
535 * - Used: @c bkpinfo->manual_cd_tray
536 * - Used: @c bkpinfo->make_cd_use_lilo
537 * - Used: @c bkpinfo->media_device
538 * - Used: @c bkpinfo->nfs_mount
539 * - Used: @c bkpinfo->nonbootable_backup
540 * - Used: @c bkpinfo->scratchdir
541 * - Used: @c bkpinfo->tmpdir
542 * - Used: @c bkpinfo->use_lzo
543 * - Modified: @c bkpinfo->call_before_iso
544 * - Modified: @c bkpinfo->call_make_iso
545 * - Modified: @c bkpinfo->optimal_set_size
546 * - Modified: @c bkpinfo->zip_exe
547 * - Modified: @c bkpinfo->zip_suffix
548 *
549 * @return number of errors, or 0 for success.
550 * @note Also creates directories that are specified in the @c bkpinfo structure but
551 * do not exist.
552 */
553int post_param_configuration(struct s_bkpinfo *bkpinfo)
554{
555    char *extra_cdrom_params;
556    char *mondo_mkisofs_sz;
557    char *command;
558    char *mtpt;
559    char *hostname, *ip_address;
560    int retval = 0;
561    long avm = 0;
562    char *colon;
563    char *cdr_exe;
564    char *tmp;
565    char call_before_iso_user[MAX_STR_LEN] = "\0";
566    int rdsiz_MB;
567    char *iso_dev;
568    char *iso_mnt;
569    char *iso_tmp;
570    char *iso_path;
571
572    assert(bkpinfo != NULL);
573    malloc_string(extra_cdrom_params);
574    malloc_string(mondo_mkisofs_sz);
575    malloc_string(command);
576    malloc_string(mtpt);
577    malloc_string(hostname);
578    malloc_string(ip_address);
579    malloc_string(cdr_exe);
580    malloc_string(tmp);
581    malloc_string(iso_dev);
582    malloc_string(iso_mnt);
583    malloc_string(iso_tmp);
584    malloc_string(iso_path);
585    bkpinfo->optimal_set_size =
586        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 4 : 8) *
587        1024;
588
589    log_msg(1, "Foo");
590    if (bkpinfo->backup_media_type == tape) {
591        log_msg(1, "Bar");
592        sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
593        log_msg(1, "tmp = '%s'", tmp);
594        if (run_program_and_log_output(tmp, 3)) {
595            fatal_error
596                ("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.");
597        }
598    }
599    make_hole_for_dir(bkpinfo->scratchdir);
600    make_hole_for_dir(bkpinfo->tmpdir);
601    if (bkpinfo->backup_media_type == iso)
602        make_hole_for_dir(bkpinfo->isodir);
603
604    run_program_and_log_output("uname -a", 5);
605    run_program_and_log_output("cat /etc/*issue*", 5);
606    sprintf(g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
607    sprintf(command, "mkdir -p %s", g_tmpfs_mountpt);
608    paranoid_system(command);
609    rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
610#ifdef __FreeBSD__
611    strcpy(tmp,
612           call_program_and_get_last_line_of_output
613           ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
614    avm += atol(tmp);
615    strcpy(tmp,
616           call_program_and_get_last_line_of_output
617           ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
618    avm += atol(tmp);
619    sprintf(command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
620            g_tmpfs_mountpt);
621#else
622    strcpy(tmp,
623           call_program_and_get_last_line_of_output
624           ("free | grep \":\" | tr -s ' ' '\t' | cut -f2 | head -n1"));
625    avm += atol(tmp);
626    sprintf(command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
627            g_tmpfs_mountpt, rdsiz_MB, 'm');
628    run_program_and_log_output("cat /proc/cpuinfo", 5);
629    run_program_and_log_output
630        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
631         5);
632#endif
633    if (avm / 1024 > rdsiz_MB * 3) {
634        if (run_program_and_log_output(command, 5)) {
635            g_tmpfs_mountpt[0] = '\0';
636            log_it("Failed to mount tmpfs");
637        } else {
638            log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
639        }
640    } else {
641        g_tmpfs_mountpt[0] = '\0';
642        log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
643    }
644
645    if (bkpinfo->use_lzo) {
646        strcpy(bkpinfo->zip_exe, "lzop");
647        strcpy(bkpinfo->zip_suffix, "lzo");
648    } else if (bkpinfo->compression_level != 0) {
649        strcpy(bkpinfo->zip_exe, "bzip2");
650        strcpy(bkpinfo->zip_suffix, "bz2");
651    } else {
652        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
653    }
654
655// DVD
656
657    if (bkpinfo->backup_media_type == dvd) {
658        extra_cdrom_params[0] = '\0';
659        mondo_mkisofs_sz[0] = '\0';
660        if (find_home_of_exe("growisofs")) {
661            strcpy(cdr_exe, "growisofs");
662        }                       // unlikely to be used
663        else {
664            fatal_error("Please install growisofs.");
665        }
666        if (bkpinfo->nonbootable_backup) {
667            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
668        } else if
669#ifdef __FreeBSD__
670            (TRUE)
671#else
672            (bkpinfo->make_cd_use_lilo)
673#endif
674#ifdef __IA64__
675    {
676        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
677    }
678#else
679    {
680        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
681    }
682#endif
683        else
684        {
685            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
686        }
687        if (bkpinfo->manual_cd_tray) {
688            fatal_error("Manual CD tray + DVD not supported yet.");
689            // -m isn't supported by growisofs, BTW...
690        } else {
691            sprintf(bkpinfo->call_make_iso,
692                    "%s %s -Z %s . 2>> _ERR_",
693                    mondo_mkisofs_sz,
694                    extra_cdrom_params, bkpinfo->media_device);
695        }
696        if (getenv ("SUDO_COMMAND")) {
697            fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
698        }
699        log_msg(2, "call_make_iso (DVD res) is ... %s",
700                bkpinfo->call_make_iso);
701    }                           // end of DVD code
702
703// CD-R or CD-RW
704    if (bkpinfo->backup_media_type == cdrw
705        || bkpinfo->backup_media_type == cdr) {
706        extra_cdrom_params[0] = '\0';
707        if (!bkpinfo->manual_cd_tray) {
708            strcat(extra_cdrom_params, "-waiti ");
709        }
710        if (bkpinfo->backup_media_type == cdrw) {
711            strcat(extra_cdrom_params, "blank=fast ");
712        }
713        if (find_home_of_exe("cdrecord")) {
714            strcpy(cdr_exe, "cdrecord");
715        } else if (find_home_of_exe("dvdrecord")) {
716            strcpy(cdr_exe, "dvdrecord");
717        } else {
718            fatal_error("Please install either cdrecord or dvdrecord.");
719        }
720        if (bkpinfo->nonbootable_backup) {
721            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
722        } else if
723#ifdef __FreeBSD__
724            (TRUE)
725#else
726            (bkpinfo->make_cd_use_lilo)
727#endif
728#ifdef __IA64__
729    {
730        strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
731    }
732#else
733    {
734        strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
735    }
736#endif
737        else
738        {
739            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
740        }
741        if (bkpinfo->manual_cd_tray) {
742            if (bkpinfo->call_before_iso[0] == '\0') {
743            sprintf(bkpinfo->call_before_iso,
744                        "%s -o %s/temporary.iso . 2>> _ERR_",
745                        mondo_mkisofs_sz, bkpinfo->tmpdir);
746                } else {
747                strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
748                sprintf (bkpinfo->call_before_iso,
749                                    "( %s -o %s/temporary.iso . 2>> _ERR_ ; %s )",
750                        mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
751            }
752            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
753            sprintf(bkpinfo->call_make_iso,
754                    "%s %s -v %s fs=4m dev=%s speed=%d %s/temporary.iso",
755                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
756                    extra_cdrom_params, bkpinfo->media_device,
757                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
758        } else {
759            sprintf(bkpinfo->call_make_iso,
760                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
761                    mondo_mkisofs_sz, cdr_exe,
762                    (bkpinfo->please_dont_eject) ? " " : "-eject",
763                    extra_cdrom_params, bkpinfo->media_device,
764                    bkpinfo->cdrw_speed);
765        }
766    }                           // end of CD code
767
768    /*
769       if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
770       {
771       sprintf (tmp,
772       "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
773       bkpinfo->media_device, bkpinfo->internal_tape_block_size);
774       if (system(tmp))
775       {
776       retval++;
777       fprintf (stderr,
778       "Cannot write to tape device. Is the tape set read-only?\n");
779       }
780       } // end of tape code
781     */
782
783
784    if (bkpinfo->backup_media_type == iso) {
785
786/* Patch by Conor Daly <conor.daly@met.ie>
787 * 23-june-2004
788 * Break up isodir into iso_mnt and iso_path
789 * These will be used along with iso-dev at restore time
790 * to locate the ISOs where ever they're mounted
791 */
792
793        log_it("isodir = %s", bkpinfo->isodir);
794        sprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1",
795                bkpinfo->isodir);
796        log_it("command = %s", command);
797        log_it("res of it = %s",
798               call_program_and_get_last_line_of_output(command));
799        sprintf(iso_dev, "%s",
800                call_program_and_get_last_line_of_output(command));
801        sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
802        write_one_liner_data_file(tmp,
803                                  call_program_and_get_last_line_of_output
804                                  (command));
805
806        sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
807                iso_dev);
808        log_it("command = %s", command);
809        log_it("res of it = %s",
810               call_program_and_get_last_line_of_output(command));
811        sprintf(iso_mnt, "%s",
812                call_program_and_get_last_line_of_output(command));
813        sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
814        write_one_liner_data_file(tmp,
815                                  call_program_and_get_last_line_of_output
816                                  (command));
817        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
818        sprintf(iso_tmp, "%s", bkpinfo->isodir);
819        if (strlen(iso_tmp) < strlen(iso_mnt)) {
820            iso_path[0] = '\0';
821        } else {
822            sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
823        }
824        sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
825        write_one_liner_data_file(tmp, iso_path);
826        log_it("isodir: %s", iso_path);
827        sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
828        write_one_liner_data_file(tmp, bkpinfo->prefix);
829        log_it("iso-prefix: %s",  bkpinfo->prefix);
830
831/* End patch */
832    }                           // end of iso code
833
834    if (bkpinfo->backup_media_type == nfs) {
835        strcpy(hostname, bkpinfo->nfs_mount);
836        colon = strchr(hostname, ':');
837        if (!colon) {
838            log_it("nfs mount doesn't have a colon in it");
839            retval++;
840        } else {
841            struct hostent *hent;
842
843            *colon = '\0';
844            hent = gethostbyname(hostname);
845            if (!hent) {
846                log_it("Can't resolve NFS mount (%s): %s", hostname,
847                       hstrerror(h_errno));
848                retval++;
849            } else {
850                strcpy(ip_address, inet_ntoa
851                       ((struct in_addr)
852                        *((struct in_addr *) hent->h_addr)));
853                strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
854                strcpy(bkpinfo->nfs_mount, ip_address);
855            }
856        }
857        store_nfs_config(bkpinfo);
858    }
859
860    log_it("Finished processing incoming params");
861    if (retval) {
862        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
863    }
864    sprintf(tmp, "%s", MONDO_TMPISOS);  /* added #define 22 apr 2002 */
865    if (does_file_exist(tmp)) {
866        unlink(tmp);
867    }
868    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
869        log_it("tmpdir or scratchdir are blank/missing");
870        retval++;
871    }
872    if (bkpinfo->include_paths[0] == '\0') {
873        //      fatal_error ("Why no backup path?");
874        strcpy(bkpinfo->include_paths, "/");
875    }
876    chmod(bkpinfo->scratchdir, 0700);
877    chmod(bkpinfo->tmpdir, 0700);
878    g_backup_media_type = bkpinfo->backup_media_type;
879    paranoid_free(mtpt);
880    paranoid_free(extra_cdrom_params);
881    paranoid_free(mondo_mkisofs_sz);
882    paranoid_free(command);
883    paranoid_free(hostname);
884    paranoid_free(ip_address);
885    paranoid_free(cdr_exe);
886    paranoid_free(tmp);
887    paranoid_free(iso_dev);
888    paranoid_free(iso_mnt);
889    paranoid_free(iso_tmp);
890    paranoid_free(iso_path);
891    return (retval);
892}
893
894
895
896/**
897 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
898 * Seeds the random-number generator, loads important modules, checks the sanity
899 * of the user's Linux distribution, and deletes logfile.
900 * @param bkpinfo The backup information structure. Will be initialized.
901 * @return number of errors (0 for success)
902 */
903int pre_param_configuration(struct s_bkpinfo *bkpinfo)
904{
905    int res = 0;
906
907    make_hole_for_dir(MNT_CDROM);
908    assert(bkpinfo != NULL);
909    srandom((unsigned long) (time(NULL)));
910    insmod_crucial_modules();
911    reset_bkpinfo(bkpinfo);     // also sets defaults ('/'=backup path, 3=compression level)
912    if (bkpinfo->disaster_recovery) {
913        if (!does_nonMS_partition_exist()) {
914            fatal_error
915                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
916        }
917    }
918
919    unlink(MONDO_TRACEFILE);
920    run_program_and_log_output("rm -Rf /tmp/changed.files*", FALSE);
921    if (find_and_store_mondoarchives_home(g_mondo_home)) {
922        fprintf(stderr,
923                "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");
924        res++;
925        return (res);
926    }
927    res += some_basic_system_sanity_checks();
928    if (res) {
929        log_it("Your distribution did not pass Mondo's sanity test.");
930    }
931    g_current_media_number = 1;
932    bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
933    return (res);
934}
935
936
937
938
939/**
940 * Reset all fields of the backup information structure to a sensible default.
941 * @param bkpinfo The @c bkpinfo to reset.
942 */
943void reset_bkpinfo(struct s_bkpinfo *bkpinfo)
944{
945    int i;
946
947    log_msg(1, "Hi");
948    assert(bkpinfo != NULL);
949    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
950    bkpinfo->manual_cd_tray = FALSE;
951    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
952    bkpinfo->media_device[0] = '\0';
953    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
954        bkpinfo->media_size[i] = -1;
955    }
956    bkpinfo->boot_loader = '\0';
957    bkpinfo->boot_device[0] = '\0';
958    bkpinfo->zip_exe[0] = '\0';
959    bkpinfo->zip_suffix[0] = '\0';
960    bkpinfo->restore_path[0] = '\0';
961    bkpinfo->use_lzo = FALSE;
962    bkpinfo->do_not_compress_these[0] = '\0';
963    bkpinfo->verify_data = FALSE;
964    bkpinfo->backup_data = FALSE;
965    bkpinfo->restore_data = FALSE;
966    bkpinfo->disaster_recovery =
967        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
968    if (bkpinfo->disaster_recovery) {
969        strcpy(bkpinfo->isodir, "/");
970    } else {
971        strcpy(bkpinfo->isodir, "/root/images/mondo");
972    }
973    strcpy(bkpinfo->prefix, STD_PREFIX);
974
975    bkpinfo->scratchdir[0] = '\0';
976    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
977    sprintf(bkpinfo->tmpdir, "/tmp/tmpfs/mondo.tmp.%d", (int) (random() % 32768));  // for mondorestore
978    bkpinfo->optimal_set_size = 0;
979    bkpinfo->backup_media_type = none;
980    strcpy(bkpinfo->include_paths, "/");
981    bkpinfo->exclude_paths[0] = '\0';
982    bkpinfo->call_before_iso[0] = '\0';
983    bkpinfo->call_make_iso[0] = '\0';
984    bkpinfo->call_burn_iso[0] = '\0';
985    bkpinfo->call_after_iso[0] = '\0';
986    bkpinfo->image_devs[0] = '\0';
987    bkpinfo->postnuke_tarball[0] = '\0';
988    bkpinfo->kernel_path[0] = '\0';
989    bkpinfo->nfs_mount[0] = '\0';
990    bkpinfo->nfs_remote_dir[0] = '\0';
991    bkpinfo->wipe_media_first = FALSE;
992    bkpinfo->differential = FALSE;
993    bkpinfo->cdrw_speed = 0;
994// patch by Herman Kuster 
995    bkpinfo->differential = 0;
996// patch end
997    bkpinfo->compression_level = 3;
998}
999
1000
1001
1002
1003/**
1004 * Get the remaining free space (in MB) on @p partition.
1005 * @param partition The partition to check free space on (either a device or a mountpoint).
1006 * @return The free space on @p partition, in MB.
1007 */
1008long free_space_on_given_partition(char *partition)
1009{
1010    char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
1011    long res;
1012
1013    assert_string_is_neither_NULL_nor_zerolength(partition);
1014
1015    sprintf(command, "df -m -P %s &> /dev/null", partition);
1016    if (system(command)) {
1017        return (-1);
1018    }                           // partition does not exist
1019    sprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
1020            partition);
1021    strcpy(out_sz, call_program_and_get_last_line_of_output(command));
1022    if (strlen(out_sz) == 0) {
1023        return (-1);
1024    }                           // error within df, probably
1025    res = atol(out_sz);
1026    return (res);
1027}
1028
1029
1030
1031/**
1032 * Check the user's system for sanity. Checks performed:
1033 * - make sure user has enough RAM (32mb required, 64mb recommended)
1034 * - make sure user has enough free space in @c /
1035 * - check kernel for ramdisk support
1036 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
1037 * - make sure CD-ROM is unmounted
1038 * - make sure /etc/modules.conf exists
1039 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
1040 *
1041 * @return number of problems with the user's setup (0 for success)
1042 */
1043int some_basic_system_sanity_checks()
1044{
1045
1046    /*@ buffers ************ */
1047    char tmp[MAX_STR_LEN];
1048    //  char command[MAX_STR_LEN];
1049
1050    /*@ int's *************** */
1051    int retval = 0;
1052    long Lres;
1053
1054
1055    mvaddstr_and_log_it(g_currentY, 0,
1056                        "Checking sanity of your Linux distribution");
1057#ifndef __FreeBSD__
1058    if (system("which mkfs.vfat &> /dev/null")
1059        && !system("which mkfs.msdos &> /dev/null")) {
1060        log_it
1061            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
1062        run_program_and_log_output
1063            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
1064    }
1065    strcpy(tmp,
1066           call_program_and_get_last_line_of_output
1067           ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
1068    if (atol(tmp) < 35000) {
1069        retval++;
1070        log_to_screen(_("You must have at least 32MB of RAM to use Mondo."));
1071    }
1072    if (atol(tmp) < 66000) {
1073        log_to_screen
1074            (_("WARNING! You have very little RAM. Please upgrade to 64MB or more."));
1075    }
1076#endif
1077
1078    if ((Lres = free_space_on_given_partition("/root")) == -1) {
1079        Lres = free_space_on_given_partition("/");
1080    }
1081    log_it("Free space on given partition = %ld MB", Lres);
1082
1083    if (Lres < 50) {
1084        run_program_and_log_output
1085            ("rm -Rf /root/images/mindi; mkdir -p /home/root/images/mindi; mkdir -p /root/images; ln -sf /home/root/images/mindi /root/images/mindi",
1086             3);
1087        //      fatal_error("Your / (or /root) partition has <50MB free. Please adjust your partition table to something saner.");
1088    }
1089
1090    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
1091        retval++;
1092        log_to_screen
1093            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
1094        fatal_error
1095            ("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. :)");
1096    }
1097#ifndef __FreeBSD__
1098    if (run_program_and_log_output
1099        ("grep ramdisk /proc/devices", FALSE)) {
1100        if (!ask_me_yes_or_no
1101            (_("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?")))
1102        {
1103            //          retval++;
1104            log_to_screen
1105                (_("It looks as if your kernel lacks ramdisk and initrd support."));
1106            log_to_screen
1107                (_("I'll allow you to proceed but FYI, if I'm right, your kernel is broken."));
1108        }
1109    }
1110#endif
1111    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
1112    retval += whine_if_not_found("mkisofs");
1113    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
1114        retval += whine_if_not_found("cdrecord");
1115    }
1116    retval += whine_if_not_found("bzip2");
1117    retval += whine_if_not_found("awk");
1118    retval += whine_if_not_found("md5sum");
1119    retval += whine_if_not_found("strings");
1120    retval += whine_if_not_found("mindi");
1121    retval += whine_if_not_found("buffer");
1122
1123    // abort if Windows partition but no ms-sys and parted
1124    if (!run_program_and_log_output
1125        ("mount | grep -w vfat | grep -v /dev/fd | grep -v nexdisk", 0)
1126        ||
1127        !run_program_and_log_output
1128        ("mount | grep -w dos | grep -v /dev/fd | grep -v nexdisk", 0)) {
1129        log_to_screen(_("I think you have a Windows 9x partition."));
1130        retval += whine_if_not_found("parted");
1131#ifndef __IA64__
1132        /* IA64 always has one vfat partition for EFI even without Windows */
1133        // retval +=
1134        if (!find_home_of_exe("ms-sys")) {
1135            log_to_screen(_("Please install ms-sys just in case."));
1136        }
1137#endif
1138    }
1139
1140    if (!find_home_of_exe("cmp")) {
1141        if (!find_home_of_exe("true")) {
1142            whine_if_not_found("cmp");
1143        } else {
1144            log_to_screen
1145                (_("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you."));
1146            if (run_program_and_log_output
1147                ("cp -f `which true` /usr/bin/cmp", 0)) {
1148                fatal_error("Failed to create dummy 'cmp' file.");
1149            }
1150        }
1151    }
1152    run_program_and_log_output
1153        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1154    strcpy(tmp,
1155           call_program_and_get_last_line_of_output
1156           ("mount | grep -E \"cdr(om|w)\""));
1157    if (strcmp("", tmp)) {
1158        if (strstr(tmp, "autofs")) {
1159            log_to_screen
1160                (_("Your CD-ROM is mounted via autofs. I therefore cannot tell"));
1161            log_to_screen
1162                (_("if a CD actually is inserted. If a CD is inserted, please"));
1163            log_to_screen(_("eject it. Thank you."));
1164            log_it
1165                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1166        } else
1167            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1168            retval++;
1169            fatal_error
1170                ("Your CD-ROM drive is mounted. Please unmount it.");
1171        }
1172    }
1173#ifndef __FreeBSD__
1174    if (!does_file_exist("/etc/modules.conf")) {
1175        if (does_file_exist("/etc/conf.modules")) {
1176            log_it("Linking /etc/modules.conf to /etc/conf.modules");
1177            run_program_and_log_output
1178                ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
1179        } else if (does_file_exist("/etc/modprobe.d")) {
1180            log_it
1181                ("Directory /etc/modprobe.d found. mindi will use its contents.");
1182        } else if (does_file_exist("/etc/modprobe.conf")) {
1183            log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
1184            run_program_and_log_output
1185                ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
1186        } else {
1187            retval++;
1188            log_to_screen
1189                (_("Please find out what happened to /etc/modules.conf"));
1190        }
1191    }
1192#endif
1193
1194    run_program_and_log_output("cat /etc/fstab", 5);
1195#ifdef __FreeBSD__
1196    run_program_and_log_output("vinum printconfig", 5);
1197#else
1198    run_program_and_log_output("cat /etc/raidtab", 5);
1199#endif
1200
1201    if (run_program_and_log_output("mindi -V", 1)) {
1202        log_to_screen(_("Could not ascertain mindi's version number."));
1203        log_to_screen
1204            (_("You have not installed Mondo and/or Mindi properly."));
1205        log_to_screen(_("Please uninstall and reinstall them both."));
1206        fatal_error("Please reinstall Mondo and Mindi.");
1207    }
1208    if (run_program_and_log_output
1209        ("mindi --makemountlist /tmp/mountlist.txt.test", 5)) {
1210        log_to_screen
1211            (_("Mindi --makemountlist /tmp/mountlist.txt.test failed for some reason."));
1212        log_to_screen
1213            (_("Please run that command by hand and examine /var/log/mindi.log"));
1214        log_to_screen
1215            (_("for more information. Perhaps your /etc/fstab file is insane."));
1216        log_to_screen
1217            (_("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see."));
1218        retval++;
1219    }
1220
1221    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1222        && !does_file_exist("/etc/raidtab")) {
1223        log_to_screen
1224            (_("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat"));
1225        create_raidtab_from_mdstat("/etc/raidtab", "/proc/mdstat");
1226    }
1227
1228    if (retval) {
1229        mvaddstr_and_log_it(g_currentY++, 74, _("Failed."));
1230    } else {
1231        mvaddstr_and_log_it(g_currentY++, 74, _("Done."));
1232    }
1233    return (retval);
1234}
1235
1236/**
1237 * Retrieve the line containing @p label from the config file.
1238 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1239 * @param label What to read from the file.
1240 * @param value Where to put it.
1241 * @return 0 for success, 1 for failure.
1242 */
1243int read_cfg_var(char *config_file, char *label, char *value)
1244{
1245    /*@ buffer ****************************************************** */
1246    char command[MAX_STR_LEN * 2];
1247    char tmp[MAX_STR_LEN];
1248
1249    /*@ end vars *************************************************** */
1250
1251    assert_string_is_neither_NULL_nor_zerolength(config_file);
1252    assert_string_is_neither_NULL_nor_zerolength(label);
1253    if (!does_file_exist(config_file)) {
1254        sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1255                config_file);
1256        log_to_screen(tmp);
1257        value[0] = '\0';
1258        return (1);
1259    } else if (strstr(value, "/dev/") && strstr(value, "t0")
1260               && !strcmp(label, "media-dev")) {
1261        log_msg(2, "FYI, I shan't read new value for %s - already got %s",
1262                label, value);
1263        return (0);
1264    } else {
1265        sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1266                label, config_file);
1267        strcpy(value, call_program_and_get_last_line_of_output(command));
1268        if (strlen(value) == 0) {
1269            return (1);
1270        } else {
1271            return (0);
1272        }
1273    }
1274}
1275
1276
1277
1278/**
1279 * Remount @c supermount if it was unmounted earlier.
1280 */
1281void remount_supermounts_if_necessary()
1282{
1283    if (g_remount_cdrom_at_end) {
1284        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1285    }
1286    if (g_remount_floppy_at_end) {
1287        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1288    }
1289}
1290
1291/**
1292 * Unmount @c supermount if it's mounted.
1293 */
1294void unmount_supermounts_if_necessary()
1295{
1296    if (run_program_and_log_output
1297        ("mount | grep cdrom | grep super", FALSE) == 0) {
1298        g_remount_cdrom_at_end = TRUE;
1299        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1300    }
1301    if (run_program_and_log_output
1302        ("mount | grep floppy | grep super", FALSE) == 0) {
1303        g_remount_floppy_at_end = TRUE;
1304        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1305    }
1306}
1307
1308/**
1309 * Whether we had to stop autofs (if so, restart it at end).
1310 */
1311bool g_autofs_stopped = FALSE;
1312
1313/**
1314 * Path to the autofs initscript ("" if none exists).
1315 */
1316char g_autofs_exe[MAX_STR_LEN];
1317
1318/**
1319 * Autofs initscript in Xandros Linux distribution.
1320 */
1321#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1322
1323/**
1324 * Autofs initscript in most Linux distributions.
1325 */
1326#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1327
1328/**
1329 * If autofs is mounted, stop it (restart at end).
1330 */
1331void stop_autofs_if_necessary()
1332{
1333    char tmp[MAX_STR_LEN];
1334
1335    g_autofs_exe[0] = '\0';
1336    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1337        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1338    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1339        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1340    }
1341
1342    if (!g_autofs_exe[0]) {
1343        log_msg(3, "No autofs detected.");
1344    } else {
1345        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1346// FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1347        sprintf(tmp, "%s stop", g_autofs_exe);
1348        if (run_program_and_log_output(tmp, 2)) {
1349            log_it("Failed to stop autofs - I assume it wasn't running");
1350        } else {
1351            g_autofs_stopped = TRUE;
1352            log_it("Stopped autofs OK");
1353        }
1354    }
1355}
1356
1357/**
1358 * If autofs was stopped earlier, restart it.
1359 */
1360void restart_autofs_if_necessary()
1361{
1362    char tmp[MAX_STR_LEN];
1363
1364    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1365        log_msg(3, "No autofs detected.");
1366        return;
1367    }
1368    sprintf(tmp, "%s start", g_autofs_exe);
1369    if (run_program_and_log_output(tmp, 2)) {
1370        log_it("Failed to start autofs");
1371    } else {
1372        g_autofs_stopped = FALSE;
1373        log_it("Started autofs OK");
1374    }
1375}
1376
1377
1378/**
1379 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1380 */
1381void mount_boot_if_necessary()
1382{
1383    char tmp[MAX_STR_LEN];
1384    char command[MAX_STR_LEN];
1385
1386    log_msg(1, "Started sub");
1387    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1388    g_boot_mountpt[0] = '\0';
1389    log_msg(4, "Done. Great. Seeting command to something");
1390    strcpy(command,
1391           "grep -v \":\" /etc/fstab | grep -vx \"#.*\" | grep -w \"/boot\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1392    log_msg(4, "Cool. Command = '%s'", command);
1393    strcpy(tmp, call_program_and_get_last_line_of_output(command));
1394    log_msg(4, "tmp = '%s'", tmp);
1395    if (tmp[0]) {
1396        log_it("/boot is at %s according to /etc/fstab", tmp);
1397        if (strstr(tmp, "LABEL=")) {
1398            if (!run_program_and_log_output("mount /boot", 5)) {
1399                strcpy(g_boot_mountpt, "/boot");
1400                log_msg(1, "Mounted /boot");
1401            } else {
1402                log_it("...ignored cos it's a label :-)");
1403            }
1404        } else {
1405            sprintf(command, "mount | grep -w \"%s\"", tmp);
1406            log_msg(3, "command = %s", command);
1407            if (run_program_and_log_output(command, 5)) {
1408                strcpy(g_boot_mountpt, tmp);
1409                sprintf(tmp,
1410                        "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1411                        g_boot_mountpt);
1412                log_it(tmp);
1413                sprintf(tmp, "mount %s", g_boot_mountpt);
1414                if (run_program_and_log_output(tmp, 5)) {
1415                    g_boot_mountpt[0] = '\0';
1416                    log_msg(1, "Plan B");
1417                    if (!run_program_and_log_output("mount /boot", 5)) {
1418                        strcpy(g_boot_mountpt, "/boot");
1419                        log_msg(1, "Plan B worked");
1420                    } else {
1421                        log_msg(1,
1422                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1423                    }
1424                }
1425            }
1426        }
1427    }
1428    log_msg(1, "Ended sub");
1429}
1430
1431
1432/**
1433 * If we mounted /boot earlier, unmount it.
1434 */
1435void unmount_boot_if_necessary()
1436{
1437    char tmp[MAX_STR_LEN];
1438
1439    log_msg(3, "starting");
1440    if (g_boot_mountpt[0]) {
1441        sprintf(tmp, "umount %s", g_boot_mountpt);
1442        if (run_program_and_log_output(tmp, 5)) {
1443            log_it("WARNING - unable to unmount /boot");
1444        }
1445    }
1446    log_msg(3, "leaving");
1447}
1448
1449
1450
1451/**
1452 * Write a line to a configuration file. Writes a line of the form,
1453 * @c label @c value.
1454 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1455 * @param label What to call this bit of data you're writing.
1456 * @param value The bit of data you're writing.
1457 * @return 0 for success, 1 for failure.
1458 */
1459int write_cfg_var(char *config_file, char *label, char *value)
1460{
1461    /*@ buffers ***************************************************** */
1462    char command[MAX_STR_LEN * 2];
1463    char tempfile[MAX_STR_LEN];
1464    char tmp[MAX_STR_LEN];
1465
1466
1467    /*@ end vars *************************************************** */
1468    assert_string_is_neither_NULL_nor_zerolength(config_file);
1469    assert_string_is_neither_NULL_nor_zerolength(label);
1470    assert(value != NULL);
1471    if (!does_file_exist(config_file)) {
1472        sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1473                config_file);
1474        log_to_screen(tmp);
1475        return (1);
1476    }
1477    strcpy(tempfile,
1478           call_program_and_get_last_line_of_output
1479           ("mktemp -q /tmp/mojo-jojo.blah.XXXXXX"));
1480    if (does_file_exist(config_file)) {
1481        sprintf(command, "grep -vx '%s .*' %s > %s",
1482                label, config_file, tempfile);
1483        paranoid_system(command);
1484    }
1485    sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1486    paranoid_system(command);
1487    sprintf(command, "mv -f %s %s", tempfile, config_file);
1488    paranoid_system(command);
1489    unlink(tempfile);
1490    return (0);
1491}
1492
1493
1494/**
1495 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1496 * information to the logfile.
1497 */
1498void standard_log_debug_msg(int debug_level, const char *szFile,
1499                            const char *szFunction, int nLine,
1500                            const char *fmt, ...)
1501{
1502    va_list args;
1503    int i;
1504    static int depth = 0;
1505    char *tmp;
1506    FILE *fout;
1507
1508    if (depth > 5) {
1509        depth--;
1510        return;
1511    }
1512    depth++;
1513
1514    malloc_string(tmp);
1515
1516    if (debug_level <= g_loglevel) {
1517        va_start(args, fmt);
1518        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1519            return;
1520        }                       // fatal_error("Failed to openout to logfile - sheesh..."); }
1521
1522        // add tabs to distinguish log levels
1523        if (debug_level > 0) {
1524            for (i = 1; i < debug_level; i++)
1525                fprintf(fout, "\t");
1526            if (getpid() == g_main_pid)
1527                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1528                        nLine);
1529            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1530                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1531                        nLine);
1532            else
1533                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1534                        szFunction, nLine);
1535        }
1536        vfprintf(fout, fmt, args);
1537
1538        // do not slow down the progran if standard debug level
1539        // must be enabled: if no flush, the log won't be up-to-date if there
1540        // is a segfault
1541        //if (g_dwDebugLevel != 1)
1542
1543        va_end(args);
1544        fprintf(fout, "\n");
1545        paranoid_fclose(fout);
1546    }
1547    depth--;
1548    paranoid_free(tmp);
1549}
1550
1551/**
1552 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1553 */
1554void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1555                       ...) = standard_log_debug_msg;
1556
1557
1558/**
1559 * If @p y, malloc @p x, else free @p x.
1560 * @bug This function seems orphaned. Please remove.
1561 */
1562#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1563
1564/**
1565 * Allocate or free important globals, depending on @p mal.
1566 * @param mal If TRUE, malloc; if FALSE, free.
1567 */
1568void do_libmondo_global_strings_thing(int mal)
1569{
1570    if (mal) {
1571        iamhere("Malloc'ing globals");
1572        malloc_string(g_boot_mountpt);
1573        malloc_string(g_mondo_home);
1574        malloc_string(g_tmpfs_mountpt);
1575        malloc_string(g_erase_tmpdir_and_scratchdir);
1576        malloc_string(g_serial_string);
1577        malloc_string(g_magicdev_command);
1578    } else {
1579        iamhere("Freeing globals");
1580        paranoid_free(g_boot_mountpt);
1581        paranoid_free(g_mondo_home);
1582        paranoid_free(g_tmpfs_mountpt);
1583        paranoid_free(g_erase_tmpdir_and_scratchdir);
1584        paranoid_free(g_serial_string);
1585        paranoid_free(g_magicdev_command);
1586    }
1587
1588    /*
1589       char**list_of_arrays[] = {
1590       &g_boot_mountpt,
1591       &g_mondo_home,
1592       &g_tmpfs_mountpt,
1593       &g_erase_tmpdir_and_scratchdir,
1594       &g_serial_string,
1595       &g_magicdev_command,
1596       NULL};
1597
1598       char**ppcurr;
1599       int i;
1600
1601       for(i=0;list_of_arrays[i];i++)
1602       {
1603       log_msg(5, "Allocating %d", i);
1604       ppcurr = list_of_arrays[i];
1605       if (mal)
1606       { *ppcurr = malloc(MAX_STR_LEN); }
1607       else
1608       {
1609       if (*ppcurr)
1610       {
1611       free(*ppcurr);
1612       }
1613       }
1614       }
1615       log_msg(5, "Returning");
1616     */
1617}
1618
1619/**
1620 * Allocate important globals.
1621 * @see do_libmondo_global_strings_thing
1622 */
1623void malloc_libmondo_global_strings(void)
1624{
1625    do_libmondo_global_strings_thing(1);
1626}
1627
1628/**
1629 * Free important globals.
1630 * @see do_libmondo_global_strings_thing
1631 */
1632void free_libmondo_global_strings(void)
1633{
1634    do_libmondo_global_strings_thing(0);
1635}
1636
1637
1638
1639/**
1640 * Stop @c magicdev if it's running.
1641 * The command used to start it is saved in @p g_magicdev_command.
1642 */
1643void stop_magicdev_if_necessary()
1644{
1645    strcpy(g_magicdev_command,
1646           call_program_and_get_last_line_of_output
1647           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1648    if (g_magicdev_command[0]) {
1649        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1650        paranoid_system("killall magicdev");
1651    }
1652}
1653
1654
1655/**
1656 * Restart magicdev if it was stopped.
1657 */
1658void restart_magicdev_if_necessary()
1659{
1660    char *tmp;
1661
1662    malloc_string(tmp);
1663    if (g_magicdev_command && g_magicdev_command[0]) {
1664        sprintf(tmp, "%s &", g_magicdev_command);
1665        paranoid_system(tmp);
1666    }
1667    paranoid_free(tmp);
1668}
1669
1670/* @} - end of utilityGroup */
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