source: branches/2.2.2/mondo/src/common/libmondo-tools.c @ 1279

Last change on this file since 1279 was 1279, checked in by bruno, 12 years ago

Fix a syntax pb (Rene Ribaud <rene.ribaud_at_free.fr>)

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File size: 44.9 KB
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1/* libmondo-tools.c                                  misc tools
2   $Id: libmondo-tools.c 1279 2007-03-28 09:16:05Z bruno $
3.
4
5
606/28
7- abort if RAID partitions found but /etc/raidtab not found
8
906/25
10- don't insist on ms-sys; recommend it
11- don't fatal_error if can't open log file
12
1306/14
14- call mindi -V before calling mindi --makemountlist
15
1604/09
17- lots of malloc'd char*'s instead of char[]'s in post_param_config'n
18
1904/02
20- better sanity-checking, re: /etc/modules.conf
21
2202/15
23- abort if Windows dir but no ms-sys or parted
24
2502/08
26- missing ramdisk/initrd support is nonfatal now (but stupid)
27
2801/16
29- added g_kernel_version and get_kernel_version()
30
3101/08/2004
32- fixed /boot mounter thingy
33
3411/14/2003
35- if <50MB free in /root, softlink /root/images/mindi to
36  /home/root/images/mindi as a workaround
37
3810/23
39- streaming backups now generate 4MB sets; CDs, 8MB sets
40
4110/21
42- better at finding your /boot in order to mount it, if nec.
43- link /etc/modules.conf to /etc/conf.modules if former
44  is missing but latter is not
45- changed "/mnt/cdrom" to MNT_CDROM
46- changed "/mnt/floppy" to MNT_FLOPPY
47
4810/13
49- added stop_magicdev_if_necessary()
50- added restart_magicdev_if_necessary()
51
5210/02
53- don't eject if bkpinfo->please_dont_eject is TRUE
54
5509/28
56- fixed segfault in mount_..._necessary
57
5809/26
59- ask for cmp (or create workaround if possible)
60
6109/25
62- add DVD support
63
6409/24
65- don't overwrite existing media-dev value in bkpinfo IF it's
66  a tape device AND it's already populated by /dev/{something}
67  ...This helps w/ weird tape drives
68
6909/23
70- malloc/free global strings in new subroutines - malloc_libmondo_global_strings()
71  and free_libmondo_global_strings() - which are in libmondo-tools.c
72
7309/18
74- added stop_autofs_if_necessary() and restart_autofs_if_necessary()
75
7609/13
77- added log_debug_msg()
78- turned log_it() into a macro
79
8009/10
81- reduced PPCFG_RAMDISK to 150m (was 200m)
82- max set size is now 8MB (was 6)
83- added 'buffer' to requisite tools
84
8508/29
86- typical set size is now 5MB
87   
8807/22
89- increased PPCFG* to 200m
90
9105/07
92- changed grep -m1 to grep | head -n1 for Debian users
93- pre_param_...() also mkdir -p /mnt/cdrom, just in case
94
9505/05
96- cleaner logging of call to dd if=<tape> of=/dev/null
97- added Joshua Oreman's FreeBSD patches
98
9905/04
100- added Herman Kuster's multi-level bkp patch
101
10205/02
103- log_it() --- "Message repeated N times" (if it was)
104
10504/24
106- added lots of assert()'s and log_OS_error()'s
107- reset_bkpinfop() --- reset all media_size[] array
108- increased tmpfs ramdisk to size=100m
109
11004/22
111- post_param_configuration() --- store iso-dev and isodir
112
11304/05
114- re-enable tmpfs ramdisk/mountpt _but_ make sure size=80m
115- in post_param_configuration(), use cdrecord in preference
116  to dvdrecord now
117
11803/27
119- disabled tmpfs ramdisk/mountpt
120
12101/02/2003
122- bkpinfo->makefilelist = TRUE
123
12412/10/2002
125- added g_loglevel
126- fixed minor bug in clean_up_KDE_desktop_if_necessary()
127- log versions of newt, slang, ncurses
128- isodir defaults to / if disaster recovery
129
13011/28
131- unmount all CD devices at start
132- added clean_up_KDE_desktop_if_necessary()
133
13411/20
135- don't use lilo.conf.anaconda; abort instead
136- mount/unmount /boot partition for Gentoo 1.2 users
137
13811/13
139- call mindi --makemountlist as part of testing sanity of distro
140
14111/08
142- added a couple of chmod 700's (one for scratchdir, one for tmpdir)
143  to post_param_configuration()
144
14510/01 - 10/31
146- added checking of / and /root's free space to some_basic_sanity_checks()
147- moved some subroutines here from common/libmondo-archive
148
14909/01 - 09/30
150- don't write log_it()'s string to stdout, even if text mode
151- tell user the kernel is bad if it has no ramdisk support but allow
152  it if they want to use the failsafe kernel for booting
153- run_program_and_log_output() now takes boolean operator to specify
154  whether it will log its activities in the event of _success_
155- if mkfs.vfat not found but mkfs.msdos found then create a softlink
156  from the former to the latter
157
15808/01 - 08/31
159- if /etc/lilo.conf not found not /etc/lilo.conf.anaconda found
160  then create a softlink from the former to the latter, to work
161  around RH7.3's b0rken LILO support
162- handle unknown media size
163
16407/27
165- created
166*/
167
168
169/**
170 * @file
171 * Miscellaneous tools that didn't really fit anywhere else.
172 */
173
174#include "my-stuff.h"
175#include "mondostructures.h"
176#include "lib-common-externs.h"
177#include "libmondo-tools.h"
178#include "libmondo-gui-EXT.h"
179#include "libmondo-files-EXT.h"
180#include "libmondo-fork-EXT.h"
181#include "libmondo-raid-EXT.h"
182#include <sys/socket.h>
183#include <netdb.h>
184#include <netinet/in.h>
185#include <arpa/inet.h>
186
187/*@unused@*/
188//static char cvsid[] = "$Id: libmondo-tools.c 1279 2007-03-28 09:16:05Z bruno $";
189
190extern int g_tape_buffer_size_MB;
191extern char *g_erase_tmpdir_and_scratchdir;
192extern char *g_serial_string;
193extern bool g_text_mode;
194extern int g_currentY;
195extern int g_current_media_number;
196
197/**
198 * @addtogroup globalGroup
199 * @{
200 */
201bool g_remount_cdrom_at_end,    ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
202 g_remount_floppy_at_end;       ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
203bool g_cd_recovery;             ///< TRUE if we're making an "autonuke" backup.
204double g_kernel_version;
205
206/**
207 * The place where /boot is mounted.
208 */
209char *g_boot_mountpt = NULL;
210
211/**
212 * The location of Mondo's home directory.
213 */
214char *g_mondo_home = NULL;
215
216/**
217 * The serial string (used to differentiate between backups) of the current backup.
218 */
219char *g_serial_string = NULL;
220
221/**
222 * The location where tmpfs is mounted, or "" if it's not mounted.
223 */
224char *g_tmpfs_mountpt = NULL;
225char *g_magicdev_command = NULL;
226
227/**
228 * The default maximum level to log messages at or below.
229 */
230int g_loglevel = DEFAULT_DEBUG_LEVEL;
231
232/* @} - end of globalGroup */
233
234
235extern pid_t g_buffer_pid;
236extern pid_t g_main_pid;
237
238extern t_bkptype g_backup_media_type;
239
240extern bool am_I_in_disaster_recovery_mode(void);
241
242
243/**
244 * @addtogroup utilityGroup
245 * @{
246 */
247/**
248 * Assertion handler. Prints a friendly message to the user,
249 * offering to ignore all, dump core, break to debugger,
250 * exit, or ignore. Intended to be used with an assert() macro.
251 *
252 * @param file The file in which the assertion triggered.
253 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
254 * @param line The line number of the assert() statement.
255 * @param exp The expression that failed (as a string).
256 */
257void _mondo_assert_fail(const char *file,
258                        const char *function, int line, const char *exp)
259{
260    static int ignoring_assertions = 0;
261    bool is_valid = TRUE;
262
263    log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
264           function);
265    if (ignoring_assertions) {
266        log_it("Well, the user doesn't care...");
267        return;
268    }
269#ifndef _XWIN
270    if (!g_text_mode)
271        newtSuspend();
272#endif
273    printf("ASSERTION FAILED: `%s'\n", exp);
274    printf("\tat %s:%d in %s\n\n", file, line, function);
275    printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
276    do {
277        is_valid = TRUE;
278        switch (toupper(getchar())) {
279        case 'A':               // ignore (A)ll
280            ignoring_assertions = 1;
281            break;
282        case 'B':               // a(B)ort
283            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
284            raise(SIGABRT);
285            break;              /* "can't get here" */
286        case 'D':               // (D)ebug, aka asm("int 3")
287#ifdef __IA32__
288            __asm__ __volatile__("int $3"); // break to debugger
289#endif
290            break;
291        case 'E':               // (E)xit
292            fatal_error("Failed assertion -- see above for details");
293            break;              /* "can't get here" */
294        case 'I':               // (I)gnore
295            break;
296            /* These next two work as follows:
297               the `default' catches the user's invalid choice and says so;
298               the '\n' catches the newline on the end and prints the prompt again.
299             */
300        case '\n':
301            printf
302                ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
303            break;
304        default:
305            is_valid = FALSE;
306            printf("Invalid choice.\n");
307            break;
308        }
309    } while (!is_valid);
310
311    if (ignoring_assertions) {
312        log_it("Ignoring ALL assertions from now on.");
313    } else {
314        log_it("Ignoring assertion: %s", exp);
315    }
316
317    getchar();                  // skip \n
318
319#ifndef _XWIN
320    if (!g_text_mode)
321        newtResume();
322#endif
323}
324
325/**
326 * Clean's up users' KDE desktops.
327 * @bug Details about this function are unknown.
328 */
329void clean_up_KDE_desktop_if_necessary(void)
330{
331    char *tmp;
332
333    malloc_string(tmp);
334    strcpy(tmp,
335           "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
336file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
337awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
338else { print $0;};}' $file.old  > $file ; fi ; done");
339    run_program_and_log_output(tmp, 5);
340    paranoid_free(tmp);
341}
342
343
344/**
345 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
346 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
347 *
348 * @param home_sz String to store the home directory ("" if it could not be found).
349 * @return 0 for success, nonzero for failure.
350 */
351int find_and_store_mondoarchives_home(char *home_sz)
352{
353    assert(home_sz != NULL);
354    strcpy(home_sz, MONDO_SHARE);
355    return (0);
356}
357
358
359char *get_architecture()
360{
361#ifdef __IA32__
362    return ("i386");
363#endif
364#ifdef __IA64__
365    return ("ia64");
366#endif
367    return ("unknown");
368}
369
370
371
372double get_kernel_version()
373{
374    char *p, tmp[200];
375    double d;
376#ifdef __FreeBSD__
377    // JOSH - FIXME :)
378    d = 5.2;                    // :-)
379#else
380    strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
381    p = strchr(tmp, '.');
382    if (p) {
383        p = strchr(++p, '.');
384        if (p) {
385            while (*p) {
386                *p = *(p + 1);
387                p++;
388            }
389        }
390    }
391//  log_msg(1, "tmp = '%s'", tmp);
392    d = atof(tmp);
393#endif
394    log_msg(1, "g_kernel_version = %f", d);
395    return (d);
396}
397
398
399
400
401
402/**
403 * Get the current time.
404 * @return number of seconds since the epoch.
405 */
406long get_time()
407{
408    return (long) time((void *) 0);
409}
410
411
412
413
414
415
416
417/**
418 * Initialize a RAID volume structure, setting fields to zero. The
419 * actual hard drive is unaffected.
420 *
421 * @param raidrec The RAID volume structure to initialize.
422 * @note This function is system dependent.
423 */
424#ifdef __FreeBSD__
425void initialize_raidrec(struct vinum_volume *raidrec)
426{
427    int i, j;
428    raidrec->volname[0] = '\0';
429    raidrec->plexes = 0;
430    for (i = 0; i < 9; ++i) {
431        raidrec->plex[i].raidlevel = -1;
432        raidrec->plex[i].stripesize = 0;
433        raidrec->plex[i].subdisks = 0;
434        for (j = 0; j < 9; ++j) {
435            strcpy(raidrec->plex[i].sd[j].which_device, "");
436        }
437    }
438}
439#else
440void initialize_raidrec(struct raid_device_record *raidrec)
441{
442    assert(raidrec != NULL);
443    raidrec->raid_device[0] = '\0';
444    raidrec->raid_level = -9;
445    raidrec->persistent_superblock = 1;
446    raidrec->chunk_size = 64;
447    raidrec->parity = -1;
448    raidrec->data_disks.entries = 0;
449    raidrec->spare_disks.entries = 0;
450    raidrec->parity_disks.entries = 0;
451    raidrec->failed_disks.entries = 0;
452    raidrec->additional_vars.entries = 0;
453}
454#endif
455
456
457
458
459/**
460 * Insert modules that Mondo requires.
461 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
462 * @c msdosfs and @c ext2fs for FreeBSD.
463 */
464void insmod_crucial_modules(void)
465{
466#ifdef __FreeBSD__
467    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
468    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
469#else
470    system("modprobe -a msdos vfat loop &> /dev/null");
471#endif
472}
473
474
475/**
476 * Log a trace message to the trace file.
477 * @bug This function seems orphaned. Please remove.
478 */
479void log_trace(char *o)
480{
481    /*@ pointers **************************************************** */
482    FILE *fout;
483
484    /*@ buffers ***************************************************** */
485    char output[MAX_STR_LEN];
486
487    /*@ int    ****************************************************** */
488    int i;
489
490    /*@ end vars *************************************************** */
491
492    if (o[0] == '\0') {
493        return;
494    }
495    strcpy(output, o);
496    i = (int) strlen(output);
497    if (i <= 0) {
498        return;
499    }
500    if (output[i - 1] < 32) {
501        output[i - 1] = '\0';
502    }
503    if (g_text_mode
504        /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
505        printf("%s\n", output);
506    }
507
508    fout = fopen(MONDO_TRACEFILE, "a");
509    if (fout) {
510        fprintf(fout, "%s\n", output);
511        paranoid_fclose(fout);
512    } else {
513        log_OS_error("Cannot write to tracefile");
514    }
515}
516
517
518
519
520
521/**
522 * Finish configuring the backup information structure. Call this function
523 * to set the parameters that depend on those that can be given on the command
524 * line.
525 *
526 * @param bkpinfo The backup information structure. Fields modified/used:
527 * - Used: @c bkpinfo->backup_data
528 * - Used: @c bkpinfo->backup_media_type
529 * - Used: @c bkpinfo->cdrw_speed
530 * - Used: @c bkpinfo->compression_level
531 * - Used: @c bkpinfo->include_paths
532 * - Used: @c bkpinfo->prefix
533 * - Used: @c bkpinfo->isodir
534 * - Used: @c bkpinfo->manual_cd_tray
535 * - Used: @c bkpinfo->make_cd_use_lilo
536 * - Used: @c bkpinfo->media_device
537 * - Used: @c bkpinfo->nfs_mount
538 * - Used: @c bkpinfo->nonbootable_backup
539 * - Used: @c bkpinfo->scratchdir
540 * - Used: @c bkpinfo->tmpdir
541 * - Used: @c bkpinfo->use_lzo
542 * - Modified: @c bkpinfo->call_before_iso
543 * - Modified: @c bkpinfo->call_make_iso
544 * - Modified: @c bkpinfo->optimal_set_size
545 * - Modified: @c bkpinfo->zip_exe
546 * - Modified: @c bkpinfo->zip_suffix
547 *
548 * @return number of errors, or 0 for success.
549 * @note Also creates directories that are specified in the @c bkpinfo structure but
550 * do not exist.
551 */
552int post_param_configuration(struct s_bkpinfo *bkpinfo)
553{
554    char *extra_cdrom_params;
555    char *mondo_mkisofs_sz;
556    char *command;
557    char *mtpt;
558    char *hostname, *ip_address;
559    int retval = 0;
560    long avm = 0;
561    char *colon;
562    char *cdr_exe;
563    char *tmp;
564    char call_before_iso_user[MAX_STR_LEN] = "\0";
565    int rdsiz_MB;
566    char *iso_dev;
567    char *iso_mnt;
568    char *iso_tmp;
569    char *iso_path;
570
571    assert(bkpinfo != NULL);
572    malloc_string(extra_cdrom_params);
573    malloc_string(mondo_mkisofs_sz);
574    malloc_string(command);
575    malloc_string(mtpt);
576    malloc_string(hostname);
577    malloc_string(ip_address);
578    malloc_string(cdr_exe);
579    malloc_string(tmp);
580    malloc_string(iso_dev);
581    malloc_string(iso_mnt);
582    malloc_string(iso_tmp);
583    malloc_string(iso_path);
584    bkpinfo->optimal_set_size =
585        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
586        1024;
587
588    log_msg(1, "Foo");
589    if (bkpinfo->backup_media_type == tape) {
590        log_msg(1, "Bar");
591        sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
592        log_msg(1, "tmp = '%s'", tmp);
593        if (run_program_and_log_output(tmp, 3)) {
594            fatal_error
595                ("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.");
596        }
597    }
598    make_hole_for_dir(bkpinfo->scratchdir);
599    make_hole_for_dir(bkpinfo->tmpdir);
600    if (bkpinfo->backup_media_type == iso)
601        make_hole_for_dir(bkpinfo->isodir);
602
603    run_program_and_log_output("uname -a", 5);
604    run_program_and_log_output("cat /etc/*-release", 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->use_gzip) {
649        strcpy(bkpinfo->zip_exe, "gzip");
650        strcpy(bkpinfo->zip_suffix, "gz");
651    } else if (bkpinfo->compression_level != 0) {
652        strcpy(bkpinfo->zip_exe, "bzip2");
653        strcpy(bkpinfo->zip_suffix, "bz2");
654    } else {
655        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
656    }
657
658// DVD
659
660    if (bkpinfo->backup_media_type == dvd) {
661        extra_cdrom_params[0] = '\0';
662        mondo_mkisofs_sz[0] = '\0';
663        if (find_home_of_exe("growisofs")) {
664            strcpy(cdr_exe, "growisofs");
665        }                       // unlikely to be used
666        else {
667            fatal_error("Please install growisofs.");
668        }
669        if (bkpinfo->nonbootable_backup) {
670            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
671        } else if
672#ifdef __FreeBSD__
673            (TRUE)
674#else
675            (bkpinfo->make_cd_use_lilo)
676#endif
677#ifdef __IA64__
678    {
679        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
680    }
681#else
682    {
683        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
684    }
685#endif
686        else
687        {
688            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
689        }
690        if (bkpinfo->manual_cd_tray) {
691            fatal_error("Manual CD tray + DVD not supported yet.");
692            // -m isn't supported by growisofs, BTW...
693        } else {
694            sprintf(bkpinfo->call_make_iso,
695                    "%s %s -Z %s . 2>> _ERR_",
696                    mondo_mkisofs_sz,
697                    extra_cdrom_params, bkpinfo->media_device);
698        }
699        if (getenv ("SUDO_COMMAND")) {
700            sprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
701            if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
702                popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
703                fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
704            }       
705        }
706        log_msg(2, "call_make_iso (DVD res) is ... %s",
707                bkpinfo->call_make_iso);
708    }                           // end of DVD code
709
710// CD-R or CD-RW
711    if (bkpinfo->backup_media_type == cdrw
712        || bkpinfo->backup_media_type == cdr) {
713        extra_cdrom_params[0] = '\0';
714        if (!bkpinfo->manual_cd_tray) {
715            strcat(extra_cdrom_params, "-waiti ");
716        }
717        if (bkpinfo->backup_media_type == cdrw) {
718            strcat(extra_cdrom_params, "blank=fast ");
719        }
720        if (find_home_of_exe("cdrecord")) {
721            strcpy(cdr_exe, "cdrecord");
722        } else if (find_home_of_exe("dvdrecord")) {
723            strcpy(cdr_exe, "dvdrecord");
724        } else {
725            fatal_error("Please install either cdrecord or dvdrecord.");
726        }
727        if (bkpinfo->nonbootable_backup) {
728            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
729        } else if
730#ifdef __FreeBSD__
731            (TRUE)
732#else
733            (bkpinfo->make_cd_use_lilo)
734#endif
735#ifdef __IA64__
736    {
737        strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
738    }
739#else
740    {
741        strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
742    }
743#endif
744        else
745        {
746            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
747        }
748        if (bkpinfo->manual_cd_tray) {
749            if (bkpinfo->call_before_iso[0] == '\0') {
750            sprintf(bkpinfo->call_before_iso,
751                        "%s -o %s/temporary.iso . 2>> _ERR_",
752                        mondo_mkisofs_sz, bkpinfo->tmpdir);
753                } else {
754                strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
755                sprintf (bkpinfo->call_before_iso,
756                                    "( %s -o %s/temporary.iso . 2>> _ERR_ ; %s )",
757                        mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
758            }
759            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
760            sprintf(bkpinfo->call_make_iso,
761                    "%s %s -v %s fs=4m dev=%s speed=%d %s/temporary.iso",
762                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
763                    extra_cdrom_params, bkpinfo->media_device,
764                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
765        } else {
766            sprintf(bkpinfo->call_make_iso,
767                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
768                    mondo_mkisofs_sz, cdr_exe,
769                    (bkpinfo->please_dont_eject) ? " " : "-eject",
770                    extra_cdrom_params, bkpinfo->media_device,
771                    bkpinfo->cdrw_speed);
772        }
773    }                           // end of CD code
774
775    /*
776       if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
777       {
778       sprintf (tmp,
779       "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
780       bkpinfo->media_device, bkpinfo->internal_tape_block_size);
781       if (system(tmp))
782       {
783       retval++;
784       fprintf (stderr,
785       "Cannot write to tape device. Is the tape set read-only?\n");
786       }
787       } // end of tape code
788     */
789
790
791    if (bkpinfo->backup_media_type == iso) {
792
793/* Patch by Conor Daly <conor.daly@met.ie>
794 * 23-june-2004
795 * Break up isodir into iso_mnt and iso_path
796 * These will be used along with iso-dev at restore time
797 * to locate the ISOs where ever they're mounted
798 */
799
800        log_it("isodir = %s", bkpinfo->isodir);
801        sprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1",
802                bkpinfo->isodir);
803        log_it("command = %s", command);
804        log_it("res of it = %s",
805               call_program_and_get_last_line_of_output(command));
806        sprintf(iso_dev, "%s",
807                call_program_and_get_last_line_of_output(command));
808        sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
809        write_one_liner_data_file(tmp,
810                                  call_program_and_get_last_line_of_output
811                                  (command));
812
813        sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
814                iso_dev);
815        log_it("command = %s", command);
816        log_it("res of it = %s",
817               call_program_and_get_last_line_of_output(command));
818        sprintf(iso_mnt, "%s",
819                call_program_and_get_last_line_of_output(command));
820        sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
821        write_one_liner_data_file(tmp,
822                                  call_program_and_get_last_line_of_output
823                                  (command));
824        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
825        sprintf(iso_tmp, "%s", bkpinfo->isodir);
826        if (strlen(iso_tmp) < strlen(iso_mnt)) {
827            iso_path[0] = '\0';
828        } else {
829            sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
830        }
831        sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
832        write_one_liner_data_file(tmp, iso_path);
833        log_it("isodir: %s", iso_path);
834        sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
835        write_one_liner_data_file(tmp, bkpinfo->prefix);
836        log_it("iso-prefix: %s",  bkpinfo->prefix);
837
838/* End patch */
839    }                           // end of iso code
840
841    if (bkpinfo->backup_media_type == nfs) {
842        strcpy(hostname, bkpinfo->nfs_mount);
843        colon = strchr(hostname, ':');
844        if (!colon) {
845            log_it("nfs mount doesn't have a colon in it");
846            retval++;
847        } else {
848            struct hostent *hent;
849
850            *colon = '\0';
851            hent = gethostbyname(hostname);
852            if (!hent) {
853                log_it("Can't resolve NFS mount (%s): %s", hostname,
854                       hstrerror(h_errno));
855                retval++;
856            } else {
857                strcpy(ip_address, inet_ntoa
858                       ((struct in_addr)
859                        *((struct in_addr *) hent->h_addr)));
860                strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
861                strcpy(bkpinfo->nfs_mount, ip_address);
862            }
863        }
864        store_nfs_config(bkpinfo);
865    }
866
867    log_it("Finished processing incoming params");
868    if (retval) {
869        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
870    }
871    sprintf(tmp, "%s", MONDO_TMPISOS);  /* added #define 22 apr 2002 */
872    if (does_file_exist(tmp)) {
873        unlink(tmp);
874    }
875    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
876        log_it("tmpdir or scratchdir are blank/missing");
877        retval++;
878    }
879    if (bkpinfo->include_paths[0] == '\0') {
880        //      fatal_error ("Why no backup path?");
881        strcpy(bkpinfo->include_paths, "/");
882    }
883    chmod(bkpinfo->scratchdir, 0700);
884    chmod(bkpinfo->tmpdir, 0700);
885    g_backup_media_type = bkpinfo->backup_media_type;
886    paranoid_free(mtpt);
887    paranoid_free(extra_cdrom_params);
888    paranoid_free(mondo_mkisofs_sz);
889    paranoid_free(command);
890    paranoid_free(hostname);
891    paranoid_free(ip_address);
892    paranoid_free(cdr_exe);
893    paranoid_free(tmp);
894    paranoid_free(iso_dev);
895    paranoid_free(iso_mnt);
896    paranoid_free(iso_tmp);
897    paranoid_free(iso_path);
898    return (retval);
899}
900
901
902
903/**
904 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
905 * Seeds the random-number generator, loads important modules, checks the sanity
906 * of the user's Linux distribution, and deletes logfile.
907 * @param bkpinfo The backup information structure. Will be initialized.
908 * @return number of errors (0 for success)
909 */
910int pre_param_configuration(struct s_bkpinfo *bkpinfo)
911{
912    int res = 0;
913
914    make_hole_for_dir(MNT_CDROM);
915    assert(bkpinfo != NULL);
916    srandom((unsigned long) (time(NULL)));
917    insmod_crucial_modules();
918    reset_bkpinfo(bkpinfo);     // also sets defaults ('/'=backup path, 3=compression level)
919    if (bkpinfo->disaster_recovery) {
920        if (!does_nonMS_partition_exist()) {
921            fatal_error
922                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
923        }
924    }
925
926    unlink(MONDO_TRACEFILE);
927    run_program_and_log_output("rm -Rf /tmp/changed.files*", FALSE);
928    if (find_and_store_mondoarchives_home(g_mondo_home)) {
929        fprintf(stderr,
930                "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");
931        res++;
932        return (res);
933    }
934    res += some_basic_system_sanity_checks();
935    if (res) {
936        log_it("Your distribution did not pass Mondo's sanity test.");
937    }
938    g_current_media_number = 1;
939    bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
940    return (res);
941}
942
943
944
945
946/**
947 * Reset all fields of the backup information structure to a sensible default.
948 * @param bkpinfo The @c bkpinfo to reset.
949 */
950void reset_bkpinfo(struct s_bkpinfo *bkpinfo)
951{
952    int i;
953
954    log_msg(1, "Hi");
955    assert(bkpinfo != NULL);
956    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
957    bkpinfo->manual_cd_tray = FALSE;
958    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
959    bkpinfo->media_device[0] = '\0';
960    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
961        bkpinfo->media_size[i] = -1;
962    }
963    bkpinfo->boot_loader = '\0';
964    bkpinfo->boot_device[0] = '\0';
965    bkpinfo->zip_exe[0] = '\0';
966    bkpinfo->zip_suffix[0] = '\0';
967    bkpinfo->restore_path[0] = '\0';
968    bkpinfo->use_lzo = FALSE;
969    bkpinfo->use_gzip = FALSE;
970    bkpinfo->do_not_compress_these[0] = '\0';
971    bkpinfo->verify_data = FALSE;
972    bkpinfo->backup_data = FALSE;
973    bkpinfo->restore_data = FALSE;
974    bkpinfo->disaster_recovery =
975        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
976    if (bkpinfo->disaster_recovery) {
977        strcpy(bkpinfo->isodir, "/");
978    } else {
979        strcpy(bkpinfo->isodir, "/root/images/mondo");
980    }
981    strcpy(bkpinfo->prefix, STD_PREFIX);
982
983    bkpinfo->scratchdir[0] = '\0';
984    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
985    sprintf(bkpinfo->tmpdir, "/tmp/tmpfs/mondo.tmp.%d", (int) (random() % 32768));  // for mondorestore
986    bkpinfo->optimal_set_size = 0;
987    bkpinfo->backup_media_type = none;
988    strcpy(bkpinfo->include_paths, "/");
989    bkpinfo->exclude_paths[0] = '\0';
990    bkpinfo->call_before_iso[0] = '\0';
991    bkpinfo->call_make_iso[0] = '\0';
992    bkpinfo->call_burn_iso[0] = '\0';
993    bkpinfo->call_after_iso[0] = '\0';
994    bkpinfo->image_devs[0] = '\0';
995    bkpinfo->postnuke_tarball[0] = '\0';
996    bkpinfo->kernel_path[0] = '\0';
997    bkpinfo->nfs_mount[0] = '\0';
998    bkpinfo->nfs_remote_dir[0] = '\0';
999    bkpinfo->wipe_media_first = FALSE;
1000    bkpinfo->differential = FALSE;
1001    bkpinfo->cdrw_speed = 0;
1002// patch by Herman Kuster 
1003    bkpinfo->differential = 0;
1004// patch end
1005    bkpinfo->compression_level = 3;
1006}
1007
1008
1009
1010
1011/**
1012 * Get the remaining free space (in MB) on @p partition.
1013 * @param partition The partition to check free space on (either a device or a mountpoint).
1014 * @return The free space on @p partition, in MB.
1015 */
1016long free_space_on_given_partition(char *partition)
1017{
1018    char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
1019    long res;
1020
1021    assert_string_is_neither_NULL_nor_zerolength(partition);
1022
1023    sprintf(command, "df -m -P %s &> /dev/null", partition);
1024    if (system(command)) {
1025        return (-1);
1026    }                           // partition does not exist
1027    sprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
1028            partition);
1029    strcpy(out_sz, call_program_and_get_last_line_of_output(command));
1030    if (strlen(out_sz) == 0) {
1031        return (-1);
1032    }                           // error within df, probably
1033    res = atol(out_sz);
1034    return (res);
1035}
1036
1037
1038
1039/**
1040 * Check the user's system for sanity. Checks performed:
1041 * - make sure user has enough RAM (32mb required, 64mb recommended)
1042 * - make sure user has enough free space in @c /
1043 * - check kernel for ramdisk support
1044 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
1045 * - make sure CD-ROM is unmounted
1046 * - make sure /etc/modules.conf exists
1047 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
1048 *
1049 * @return number of problems with the user's setup (0 for success)
1050 */
1051int some_basic_system_sanity_checks()
1052{
1053
1054    /*@ buffers ************ */
1055    char tmp[MAX_STR_LEN];
1056    //  char command[MAX_STR_LEN];
1057
1058    /*@ int's *************** */
1059    int retval = 0;
1060    long Lres;
1061
1062
1063    mvaddstr_and_log_it(g_currentY, 0,
1064                        "Checking sanity of your Linux distribution");
1065#ifndef __FreeBSD__
1066    if (system("which mkfs.vfat &> /dev/null")
1067        && !system("which mkfs.msdos &> /dev/null")) {
1068        log_it
1069            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
1070        run_program_and_log_output
1071            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
1072    }
1073    strcpy(tmp,
1074           call_program_and_get_last_line_of_output
1075           ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
1076    if (atol(tmp) < 35000) {
1077        retval++;
1078        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
1079    }
1080    if (atol(tmp) < 66000) {
1081        log_to_screen
1082            ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
1083    }
1084#endif
1085
1086    if ((Lres = free_space_on_given_partition("/root")) == -1) {
1087        Lres = free_space_on_given_partition("/");
1088    }
1089    log_it("Free space on given partition = %ld MB", Lres);
1090
1091    if (Lres < 50) {
1092        run_program_and_log_output
1093            ("rm -Rf /root/images/mindi; mkdir -p /home/root/images/mindi; mkdir -p /root/images; ln -sf /home/root/images/mindi /root/images/mindi",
1094             3);
1095        //      fatal_error("Your / (or /root) partition has <50MB free. Please adjust your partition table to something saner.");
1096    }
1097
1098    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
1099        retval++;
1100        log_to_screen
1101            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
1102        fatal_error
1103            ("Please use \"su -\", not \"su\" to become root. OK? ...and please don't e-mail the mailing list or me about this. Just read the message. :)");
1104    }
1105#ifndef __FreeBSD__
1106    if (run_program_and_log_output
1107        ("grep ramdisk /proc/devices", FALSE)) {
1108        if (!ask_me_yes_or_no
1109            ("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?"))
1110        {
1111            //          retval++;
1112            log_to_screen
1113                ("It looks as if your kernel lacks ramdisk and initrd support.");
1114            log_to_screen
1115                ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
1116        }
1117    }
1118#endif
1119    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
1120    retval += whine_if_not_found("mkisofs");
1121    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
1122        retval += whine_if_not_found("cdrecord");
1123    }
1124    retval += whine_if_not_found("bzip2");
1125    retval += whine_if_not_found("gzip");
1126    retval += whine_if_not_found("awk");
1127    retval += whine_if_not_found("md5sum");
1128    retval += whine_if_not_found("strings");
1129    retval += whine_if_not_found("mindi");
1130    retval += whine_if_not_found("buffer");
1131
1132    // abort if Windows partition but no ms-sys and parted
1133    if (!run_program_and_log_output
1134        ("mount | grep -w vfat | grep -vE \"/dev/fd|nexdisk\"", 0)
1135        ||
1136        !run_program_and_log_output
1137        ("mount | grep -w dos | grep -vE \"/dev/fd|nexdisk\"", 0)) {
1138        log_to_screen("I think you have a Windows 9x partition.");
1139        retval += whine_if_not_found("parted");
1140#ifndef __IA64__
1141        /* IA64 always has one vfat partition for EFI even without Windows */
1142        // retval +=
1143        if (!find_home_of_exe("ms-sys")) {
1144            log_to_screen("Please install ms-sys just in case.");
1145        }
1146#endif
1147    }
1148
1149    if (!find_home_of_exe("cmp")) {
1150        if (!find_home_of_exe("true")) {
1151            whine_if_not_found("cmp");
1152        } else {
1153            log_to_screen
1154                ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1155            if (run_program_and_log_output
1156                ("cp -f `which true` /usr/bin/cmp", 0)) {
1157                fatal_error("Failed to create dummy 'cmp' file.");
1158            }
1159        }
1160    }
1161    run_program_and_log_output
1162        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1163    strcpy(tmp,
1164           call_program_and_get_last_line_of_output
1165           ("mount | grep -E \"cdr(om|w)\""));
1166    if (strcmp("", tmp)) {
1167        if (strstr(tmp, "autofs")) {
1168            log_to_screen
1169                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1170            log_to_screen
1171                ("if a CD actually is inserted. If a CD is inserted, please");
1172            log_to_screen("eject it. Thank you.");
1173            log_it
1174                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1175        } else
1176            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1177            retval++;
1178            fatal_error
1179                ("Your CD-ROM drive is mounted. Please unmount it.");
1180        }
1181    }
1182#ifndef __FreeBSD__
1183    if (!does_file_exist("/etc/modules.conf")) {
1184        if (does_file_exist("/etc/conf.modules")) {
1185            log_it("Linking /etc/modules.conf to /etc/conf.modules");
1186            run_program_and_log_output
1187                ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
1188        } else if (does_file_exist("/etc/modprobe.d")) {
1189            log_it
1190                ("Directory /etc/modprobe.d found. mindi will use its contents.");
1191        } else if (does_file_exist("/etc/modprobe.conf")) {
1192            log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
1193            run_program_and_log_output
1194                ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
1195        } else {
1196            retval++;
1197            log_to_screen
1198                ("Please find out what happened to /etc/modules.conf");
1199        }
1200    }
1201#endif
1202
1203    run_program_and_log_output("cat /etc/fstab", 5);
1204#ifdef __FreeBSD__
1205    run_program_and_log_output("vinum printconfig", 5);
1206#else
1207    run_program_and_log_output("cat /etc/raidtab", 5);
1208#endif
1209
1210    if (run_program_and_log_output("mindi -V", 1)) {
1211        log_to_screen("Could not ascertain mindi's version number.");
1212        log_to_screen
1213            ("You have not installed Mondo and/or Mindi properly.");
1214        log_to_screen("Please uninstall and reinstall them both.");
1215        fatal_error("Please reinstall Mondo and Mindi.");
1216    }
1217    if (run_program_and_log_output
1218        ("mindi --makemountlist /tmp/mountlist.txt.test", 5)) {
1219        log_to_screen
1220            ("Mindi --makemountlist /tmp/mountlist.txt.test failed for some reason.");
1221        log_to_screen
1222            ("Please run that command by hand and examine /var/log/mindi.log");
1223        log_to_screen
1224            ("for more information. Perhaps your /etc/fstab file is insane.");
1225        log_to_screen
1226            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1227        retval++;
1228    }
1229
1230    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1231        && !does_file_exist("/etc/raidtab")) {
1232        log_to_screen
1233            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1234        create_raidtab_from_mdstat("/etc/raidtab");
1235    }
1236
1237    if (retval) {
1238        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1239    } else {
1240        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1241    }
1242    return (retval);
1243}
1244
1245/**
1246 * Retrieve the line containing @p label from the config file.
1247 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1248 * @param label What to read from the file.
1249 * @param value Where to put it.
1250 * @return 0 for success, 1 for failure.
1251 */
1252int read_cfg_var(char *config_file, char *label, char *value)
1253{
1254    /*@ buffer ****************************************************** */
1255    char command[MAX_STR_LEN * 2];
1256    char tmp[MAX_STR_LEN];
1257
1258    /*@ end vars *************************************************** */
1259
1260    assert_string_is_neither_NULL_nor_zerolength(config_file);
1261    assert_string_is_neither_NULL_nor_zerolength(label);
1262    if (!does_file_exist(config_file)) {
1263        sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1264                config_file);
1265        log_to_screen(tmp);
1266        value[0] = '\0';
1267        return (1);
1268    } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1269        log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1270        return (0);
1271    } else {
1272        sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1273                label, config_file);
1274        strcpy(value, call_program_and_get_last_line_of_output(command));
1275        if (strlen(value) == 0) {
1276            return (1);
1277        } else {
1278            return (0);
1279        }
1280    }
1281}
1282
1283
1284
1285/**
1286 * Remount @c supermount if it was unmounted earlier.
1287 */
1288void remount_supermounts_if_necessary()
1289{
1290    if (g_remount_cdrom_at_end) {
1291        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1292    }
1293    if (g_remount_floppy_at_end) {
1294        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1295    }
1296}
1297
1298/**
1299 * Unmount @c supermount if it's mounted.
1300 */
1301void unmount_supermounts_if_necessary()
1302{
1303    if (run_program_and_log_output
1304        ("mount | grep cdrom | grep super", FALSE) == 0) {
1305        g_remount_cdrom_at_end = TRUE;
1306        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1307    }
1308    if (run_program_and_log_output
1309        ("mount | grep floppy | grep super", FALSE) == 0) {
1310        g_remount_floppy_at_end = TRUE;
1311        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1312    }
1313}
1314
1315/**
1316 * Whether we had to stop autofs (if so, restart it at end).
1317 */
1318bool g_autofs_stopped = FALSE;
1319
1320/**
1321 * Path to the autofs initscript ("" if none exists).
1322 */
1323char g_autofs_exe[MAX_STR_LEN];
1324
1325/**
1326 * Autofs initscript in Xandros Linux distribution.
1327 */
1328#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1329
1330/**
1331 * Autofs initscript in most Linux distributions.
1332 */
1333#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1334
1335/**
1336 * If autofs is mounted, stop it (restart at end).
1337 */
1338void stop_autofs_if_necessary()
1339{
1340    char tmp[MAX_STR_LEN];
1341
1342    g_autofs_exe[0] = '\0';
1343    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1344        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1345    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1346        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1347    }
1348
1349    if (!g_autofs_exe[0]) {
1350        log_msg(3, "No autofs detected.");
1351    } else {
1352        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1353// FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1354        sprintf(tmp, "%s stop", g_autofs_exe);
1355        if (run_program_and_log_output(tmp, 2)) {
1356            log_it("Failed to stop autofs - I assume it wasn't running");
1357        } else {
1358            g_autofs_stopped = TRUE;
1359            log_it("Stopped autofs OK");
1360        }
1361    }
1362}
1363
1364/**
1365 * If autofs was stopped earlier, restart it.
1366 */
1367void restart_autofs_if_necessary()
1368{
1369    char tmp[MAX_STR_LEN];
1370
1371    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1372        log_msg(3, "No autofs detected.");
1373        return;
1374    }
1375    sprintf(tmp, "%s start", g_autofs_exe);
1376    if (run_program_and_log_output(tmp, 2)) {
1377        log_it("Failed to start autofs");
1378    } else {
1379        g_autofs_stopped = FALSE;
1380        log_it("Started autofs OK");
1381    }
1382}
1383
1384
1385/**
1386 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1387 */
1388void mount_boot_if_necessary()
1389{
1390    char tmp[MAX_STR_LEN];
1391    char command[MAX_STR_LEN];
1392
1393    log_msg(1, "Started sub");
1394    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1395    g_boot_mountpt[0] = '\0';
1396    log_msg(4, "Done. Great. Seeting command to something");
1397    strcpy(command,
1398           "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[   ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1399    log_msg(4, "Cool. Command = '%s'", command);
1400    strcpy(tmp, call_program_and_get_last_line_of_output(command));
1401    log_msg(4, "tmp = '%s'", tmp);
1402    if (tmp[0]) {
1403        log_it("/boot is at %s according to /etc/fstab", tmp);
1404        if (strstr(tmp, "LABEL=")) {
1405            if (!run_program_and_log_output("mount /boot", 5)) {
1406                strcpy(g_boot_mountpt, "/boot");
1407                log_msg(1, "Mounted /boot");
1408            } else {
1409                log_it("...ignored cos it's a label :-)");
1410            }
1411        } else {
1412            sprintf(command, "mount | grep -E '^%s'", tmp);
1413            log_msg(3, "command = %s", command);
1414            if (run_program_and_log_output(command, 5)) {
1415                strcpy(g_boot_mountpt, tmp);
1416                sprintf(tmp,
1417                        "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1418                        g_boot_mountpt);
1419                log_it(tmp);
1420                sprintf(tmp, "mount %s", g_boot_mountpt);
1421                if (run_program_and_log_output(tmp, 5)) {
1422                    g_boot_mountpt[0] = '\0';
1423                    log_msg(1, "Plan B");
1424                    if (!run_program_and_log_output("mount /boot", 5)) {
1425                        strcpy(g_boot_mountpt, "/boot");
1426                        log_msg(1, "Plan B worked");
1427                    } else {
1428                        log_msg(1,
1429                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1430                    }
1431                }
1432            }
1433        }
1434    }
1435    log_msg(1, "Ended sub");
1436}
1437
1438
1439/**
1440 * If we mounted /boot earlier, unmount it.
1441 */
1442void unmount_boot_if_necessary()
1443{
1444    char tmp[MAX_STR_LEN];
1445
1446    log_msg(3, "starting");
1447    if (g_boot_mountpt[0]) {
1448        sprintf(tmp, "umount %s", g_boot_mountpt);
1449        if (run_program_and_log_output(tmp, 5)) {
1450            log_it("WARNING - unable to unmount /boot");
1451        }
1452    }
1453    log_msg(3, "leaving");
1454}
1455
1456
1457
1458/**
1459 * Write a line to a configuration file. Writes a line of the form,
1460 * @c label @c value.
1461 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1462 * @param label What to call this bit of data you're writing.
1463 * @param value The bit of data you're writing.
1464 * @return 0 for success, 1 for failure.
1465 */
1466int write_cfg_var(char *config_file, char *label, char *value)
1467{
1468    /*@ buffers ***************************************************** */
1469    char command[MAX_STR_LEN * 2];
1470    char tempfile[MAX_STR_LEN];
1471    char tmp[MAX_STR_LEN];
1472
1473
1474    /*@ end vars *************************************************** */
1475    assert_string_is_neither_NULL_nor_zerolength(config_file);
1476    assert_string_is_neither_NULL_nor_zerolength(label);
1477    assert(value != NULL);
1478    if (!does_file_exist(config_file)) {
1479        sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1480                config_file);
1481        log_to_screen(tmp);
1482        return (1);
1483    }
1484    strcpy(tempfile,
1485           call_program_and_get_last_line_of_output
1486           ("mktemp -q /tmp/mojo-jojo.blah.XXXXXX"));
1487    if (does_file_exist(config_file)) {
1488        sprintf(command, "grep -vE '^%s .*$' %s > %s",
1489                label, config_file, tempfile);
1490        paranoid_system(command);
1491    }
1492    sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1493    paranoid_system(command);
1494    sprintf(command, "mv -f %s %s", tempfile, config_file);
1495    paranoid_system(command);
1496    unlink(tempfile);
1497    return (0);
1498}
1499
1500
1501/**
1502 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1503 * information to the logfile.
1504 */
1505void standard_log_debug_msg(int debug_level, const char *szFile,
1506                            const char *szFunction, int nLine,
1507                            const char *fmt, ...)
1508{
1509    va_list args;
1510    int i;
1511    static int depth = 0;
1512    char *tmp;
1513    FILE *fout;
1514
1515    if (depth > 5) {
1516        depth--;
1517        return;
1518    }
1519    depth++;
1520
1521    malloc_string(tmp);
1522
1523    if (debug_level <= g_loglevel) {
1524        va_start(args, fmt);
1525        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1526            return;
1527        }                       // fatal_error("Failed to openout to logfile - sheesh..."); }
1528
1529        // add tabs to distinguish log levels
1530        if (debug_level > 0) {
1531            for (i = 1; i < debug_level; i++)
1532                fprintf(fout, "\t");
1533            if (getpid() == g_main_pid)
1534                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1535                        nLine);
1536            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1537                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1538                        nLine);
1539            else
1540                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1541                        szFunction, nLine);
1542        }
1543        vfprintf(fout, fmt, args);
1544
1545        // do not slow down the progran if standard debug level
1546        // must be enabled: if no flush, the log won't be up-to-date if there
1547        // is a segfault
1548        //if (g_dwDebugLevel != 1)
1549
1550        va_end(args);
1551        fprintf(fout, "\n");
1552        paranoid_fclose(fout);
1553    }
1554    depth--;
1555    paranoid_free(tmp);
1556}
1557
1558/**
1559 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1560 */
1561void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1562                       ...) = standard_log_debug_msg;
1563
1564
1565/**
1566 * If @p y, malloc @p x, else free @p x.
1567 * @bug This function seems orphaned. Please remove.
1568 */
1569#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1570
1571/**
1572 * Allocate or free important globals, depending on @p mal.
1573 * @param mal If TRUE, malloc; if FALSE, free.
1574 */
1575void do_libmondo_global_strings_thing(int mal)
1576{
1577    if (mal) {
1578        iamhere("Malloc'ing globals");
1579        malloc_string(g_boot_mountpt);
1580        malloc_string(g_mondo_home);
1581        malloc_string(g_tmpfs_mountpt);
1582        malloc_string(g_erase_tmpdir_and_scratchdir);
1583        malloc_string(g_serial_string);
1584        malloc_string(g_magicdev_command);
1585    } else {
1586        iamhere("Freeing globals");
1587        paranoid_free(g_boot_mountpt);
1588        paranoid_free(g_mondo_home);
1589        paranoid_free(g_tmpfs_mountpt);
1590        paranoid_free(g_erase_tmpdir_and_scratchdir);
1591        paranoid_free(g_serial_string);
1592        paranoid_free(g_magicdev_command);
1593    }
1594
1595    /*
1596       char**list_of_arrays[] = {
1597       &g_boot_mountpt,
1598       &g_mondo_home,
1599       &g_tmpfs_mountpt,
1600       &g_erase_tmpdir_and_scratchdir,
1601       &g_serial_string,
1602       &g_magicdev_command,
1603       NULL};
1604
1605       char**ppcurr;
1606       int i;
1607
1608       for(i=0;list_of_arrays[i];i++)
1609       {
1610       log_msg(5, "Allocating %d", i);
1611       ppcurr = list_of_arrays[i];
1612       if (mal)
1613       { *ppcurr = malloc(MAX_STR_LEN); }
1614       else
1615       {
1616       if (*ppcurr)
1617       {
1618       free(*ppcurr);
1619       }
1620       }
1621       }
1622       log_msg(5, "Returning");
1623     */
1624}
1625
1626/**
1627 * Allocate important globals.
1628 * @see do_libmondo_global_strings_thing
1629 */
1630void malloc_libmondo_global_strings(void)
1631{
1632    do_libmondo_global_strings_thing(1);
1633}
1634
1635/**
1636 * Free important globals.
1637 * @see do_libmondo_global_strings_thing
1638 */
1639void free_libmondo_global_strings(void)
1640{
1641    do_libmondo_global_strings_thing(0);
1642}
1643
1644
1645
1646/**
1647 * Stop @c magicdev if it's running.
1648 * The command used to start it is saved in @p g_magicdev_command.
1649 */
1650void stop_magicdev_if_necessary()
1651{
1652    strcpy(g_magicdev_command,
1653           call_program_and_get_last_line_of_output
1654           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1655    if (g_magicdev_command[0]) {
1656        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1657        paranoid_system("killall magicdev");
1658    }
1659}
1660
1661
1662/**
1663 * Restart magicdev if it was stopped.
1664 */
1665void restart_magicdev_if_necessary()
1666{
1667    char *tmp;
1668
1669    malloc_string(tmp);
1670    if (g_magicdev_command && g_magicdev_command[0]) {
1671        sprintf(tmp, "%s &", g_magicdev_command);
1672        paranoid_system(tmp);
1673    }
1674    paranoid_free(tmp);
1675}
1676
1677/* @} - end of utilityGroup */
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