source: branches/2.05/mondo/mondo/common/libmondo-tools.c @ 128

Last change on this file since 128 was 128, checked in by bcornec, 15 years ago

indent on all the C code

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1/* libmondo-tools.c                                  misc tools
2   $Id: libmondo-tools.c 128 2005-11-19 01:27:41Z 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 "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 128 2005-11-19 01:27:41Z bcornec $";
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 ; \
337cat $file.old | awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
338else { print $0;};}' > $file ; fi ; done");
339    run_program_and_log_output(tmp, 5);
340    paranoid_free(tmp);
341}
342
343
344/**
345 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
346 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
347 *
348 * @param home_sz String to store the home directory ("" if it could not be found).
349 * @return 0 for success, nonzero for failure.
350 */
351int find_and_store_mondoarchives_home(char *home_sz)
352{
353    assert(home_sz != NULL);
354    strcpy(home_sz,
355           call_program_and_get_last_line_of_output
356           ("find /usr/lib/ /usr/local/ /usr/share/ /usr/local/share/ /opt/ /ramdisk/usr/share/ -type d -maxdepth 2 -name include -prune -o -type d -maxdepth 2 -path '*/mondo/restore-scripts' -printf '%h\n' 2> /dev/null"));
357
358    if (home_sz[0] == '\0') {
359        strcpy(home_sz,
360               call_program_and_get_last_line_of_output
361               ("find /usr -type d -path '*/mondo/restore-scripts' -follow -maxdepth 3 -printf '%h\n' 2> /dev/null"));
362    }
363    if (home_sz[0] == '\0') {
364        return (1);
365    } else {
366        return (0);
367    }
368}
369
370
371char *get_architecture()
372{
373#ifdef __IA32__
374    return ("i386");
375#endif
376#ifdef __IA64__
377    return ("ia64");
378#endif
379    return ("unknown");
380}
381
382
383
384double get_kernel_version()
385{
386    char *p, tmp[200];
387    double d;
388#ifdef __FreeBSD__
389    // JOSH - FIXME :)
390    d = 5.2;                    // :-)
391#else
392    strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
393    p = strchr(tmp, '.');
394    if (p) {
395        p = strchr(++p, '.');
396        if (p) {
397            while (*p) {
398                *p = *(p + 1);
399                p++;
400            }
401        }
402    }
403//  log_msg(1, "tmp = '%s'", tmp);
404    d = atof(tmp);
405#endif
406    log_msg(1, "g_kernel_version = %f", d);
407    return (d);
408}
409
410
411
412
413
414/**
415 * Get the current time.
416 * @return number of seconds since the epoch.
417 */
418long get_time()
419{
420    return (long) time((void *) 0);
421}
422
423
424
425
426
427
428
429/**
430 * Initialize a RAID volume structure, setting fields to zero. The
431 * actual hard drive is unaffected.
432 *
433 * @param raidrec The RAID volume structure to initialize.
434 * @note This function is system dependent.
435 */
436#ifdef __FreeBSD__
437void initialize_raidrec(struct vinum_volume *raidrec)
438{
439    int i, j;
440    raidrec->volname[0] = '\0';
441    raidrec->plexes = 0;
442    for (i = 0; i < 9; ++i) {
443        raidrec->plex[i].raidlevel = -1;
444        raidrec->plex[i].stripesize = 0;
445        raidrec->plex[i].subdisks = 0;
446        for (j = 0; j < 9; ++j) {
447            strcpy(raidrec->plex[i].sd[j].which_device, "");
448        }
449    }
450}
451#else
452void initialize_raidrec(struct raid_device_record *raidrec)
453{
454    assert(raidrec != NULL);
455    raidrec->raid_device[0] = '\0';
456    raidrec->raid_level = 0;
457    raidrec->chunk_size = 4;
458    raidrec->persistent_superblock = 1;
459    raidrec->data_disks.entries = 0;
460    raidrec->spare_disks.entries = 0;
461    raidrec->parity_disks.entries = 0;
462    raidrec->failed_disks.entries = 0;
463    raidrec->additional_vars.entries = 0;
464}
465#endif
466
467
468
469
470/**
471 * Insert modules that Mondo requires.
472 * Currently inserts @c dos, @c fat, @c vfat, and @c osst for Linux;
473 * @c msdosfs and @c ext2fs for FreeBSD.
474 */
475void insmod_crucial_modules(void)
476{
477#ifdef __FreeBSD__
478    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
479    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
480#else
481    system("modprobe dos &> /dev/null");
482    system("modprobe fat &> /dev/null");
483    system("modprobe vfat &> /dev/null");
484    //  system("modprobe osst &> /dev/null");
485#endif
486}
487
488
489/**
490 * Log a trace message to the trace file.
491 * @bug This function seems orphaned. Please remove.
492 */
493void log_trace(char *o)
494{
495    /*@ pointers **************************************************** */
496    FILE *fout;
497
498    /*@ buffers ***************************************************** */
499    char output[MAX_STR_LEN];
500
501    /*@ int    ****************************************************** */
502    int i;
503
504    /*@ end vars *************************************************** */
505
506    if (o[0] == '\0') {
507        return;
508    }
509    strcpy(output, o);
510    i = (int) strlen(output);
511    if (i <= 0) {
512        return;
513    }
514    if (output[i - 1] < 32) {
515        output[i - 1] = '\0';
516    }
517    if (g_text_mode
518        /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
519        printf("%s\n", output);
520    }
521
522    fout = fopen(MONDO_TRACEFILE, "a");
523    if (fout) {
524        fprintf(fout, "%s\n", output);
525        paranoid_fclose(fout);
526    } else {
527        log_OS_error("Cannot write to tracefile");
528    }
529}
530
531
532
533
534
535/**
536 * Finish configuring the backup information structure. Call this function
537 * to set the parameters that depend on those that can be given on the command
538 * line.
539 *
540 * @param bkpinfo The backup information structure. Fields modified/used:
541 * - Used: @c bkpinfo->backup_data
542 * - Used: @c bkpinfo->backup_media_type
543 * - Used: @c bkpinfo->cdrw_speed
544 * - Used: @c bkpinfo->compression_level
545 * - Used: @c bkpinfo->include_paths
546 * - Used: @c bkpinfo->prefix
547 * - Used: @c bkpinfo->isodir
548 * - Used: @c bkpinfo->manual_cd_tray
549 * - Used: @c bkpinfo->make_cd_use_lilo
550 * - Used: @c bkpinfo->media_device
551 * - Used: @c bkpinfo->nfs_mount
552 * - Used: @c bkpinfo->nonbootable_backup
553 * - Used: @c bkpinfo->scratchdir
554 * - Used: @c bkpinfo->tmpdir
555 * - Used: @c bkpinfo->use_lzo
556 * - Modified: @c bkpinfo->call_before_iso
557 * - Modified: @c bkpinfo->call_make_iso
558 * - Modified: @c bkpinfo->optimal_set_size
559 * - Modified: @c bkpinfo->zip_exe
560 * - Modified: @c bkpinfo->zip_suffix
561 *
562 * @return number of errors, or 0 for success.
563 * @note Also creates directories that are specified in the @c bkpinfo structure but
564 * do not exist.
565 */
566int post_param_configuration(struct s_bkpinfo *bkpinfo)
567{
568    char *extra_cdrom_params;
569    char *mondo_mkisofs_sz;
570    char *command;
571    char *mtpt;
572    char *hostname, *ip_address;
573    int retval = 0;
574    long avm = 0;
575    char *colon;
576    char *cdr_exe;
577    char *tmp;
578    int rdsiz_MB;
579    char *iso_dev;
580    char *iso_mnt;
581    char *iso_tmp;
582    char *iso_path;
583
584    assert(bkpinfo != NULL);
585    malloc_string(extra_cdrom_params);
586    malloc_string(mondo_mkisofs_sz);
587    malloc_string(command);
588    malloc_string(mtpt);
589    malloc_string(hostname);
590    malloc_string(ip_address);
591    malloc_string(cdr_exe);
592    malloc_string(tmp);
593    malloc_string(iso_dev);
594    malloc_string(iso_mnt);
595    malloc_string(iso_tmp);
596    malloc_string(iso_path);
597    bkpinfo->optimal_set_size =
598        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 4 : 8) *
599        1024;
600
601    log_msg(1, "Foo");
602    if (bkpinfo->backup_media_type == tape) {
603        log_msg(1, "Bar");
604        sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
605        log_msg(1, "tmp = '%s'", tmp);
606        if (run_program_and_log_output(tmp, 3)) {
607            fatal_error
608                ("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.");
609        }
610    }
611    make_hole_for_dir(bkpinfo->scratchdir);
612    make_hole_for_dir(bkpinfo->tmpdir);
613    if (bkpinfo->backup_media_type == iso)
614        make_hole_for_dir(bkpinfo->isodir);
615
616    run_program_and_log_output("uname -a", 5);
617    run_program_and_log_output("cat /etc/*issue*", 5);
618    sprintf(g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
619    sprintf(command, "mkdir -p %s", g_tmpfs_mountpt);
620    paranoid_system(command);
621    rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
622#ifdef __FreeBSD__
623    strcpy(tmp,
624           call_program_and_get_last_line_of_output
625           ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
626    avm += atol(tmp);
627    strcpy(tmp,
628           call_program_and_get_last_line_of_output
629           ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
630    avm += atol(tmp);
631    sprintf(command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
632            g_tmpfs_mountpt);
633#else
634    strcpy(tmp,
635           call_program_and_get_last_line_of_output
636           ("free | grep \":\" | tr -s ' ' '\t' | cut -f2 | head -n1"));
637    avm += atol(tmp);
638    sprintf(command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
639            g_tmpfs_mountpt, rdsiz_MB, 'm');
640    run_program_and_log_output("cat /proc/cpuinfo", 5);
641    run_program_and_log_output
642        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
643         5);
644#endif
645    if (avm / 1024 > rdsiz_MB * 3) {
646        if (run_program_and_log_output(command, 5)) {
647            g_tmpfs_mountpt[0] = '\0';
648            log_it("Failed to mount tmpfs");
649        } else {
650            log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
651        }
652    } else {
653        g_tmpfs_mountpt[0] = '\0';
654        log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
655    }
656
657    if (bkpinfo->use_lzo) {
658        strcpy(bkpinfo->zip_exe, "lzop");
659        strcpy(bkpinfo->zip_suffix, "lzo");
660    } else if (bkpinfo->compression_level != 0) {
661        strcpy(bkpinfo->zip_exe, "bzip2");
662        strcpy(bkpinfo->zip_suffix, "bz2");
663    } else {
664        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
665    }
666
667// DVD
668
669    if (bkpinfo->backup_media_type == dvd) {
670        extra_cdrom_params[0] = '\0';
671        mondo_mkisofs_sz[0] = '\0';
672        if (find_home_of_exe("growisofs")) {
673            strcpy(cdr_exe, "growisofs");
674        }                       // unlikely to be used
675        else {
676            fatal_error("Please install growisofs.");
677        }
678        if (bkpinfo->nonbootable_backup) {
679            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
680        } else if
681#ifdef __FreeBSD__
682            (TRUE)
683#else
684            (bkpinfo->make_cd_use_lilo)
685#endif
686#ifdef __IA64__
687    {
688        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
689    }
690#else
691    {
692        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
693    }
694#endif
695        else
696        {
697            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
698        }
699        if (bkpinfo->manual_cd_tray) {
700            fatal_error("Manual CD tray + DVD not supported yet.");
701            // -m isn't supported by growisofs, BTW...
702        } else {
703            sprintf(bkpinfo->call_make_iso,
704                    "%s %s -Z %s . 2>> _ERR_",
705                    mondo_mkisofs_sz,
706                    extra_cdrom_params, bkpinfo->media_device);
707        }
708        log_msg(2, "call_make_iso (DVD res) is ... %s",
709                bkpinfo->call_make_iso);
710    }                           // end of DVD code
711
712// CD-R or CD-RW
713    if (bkpinfo->backup_media_type == cdrw
714        || bkpinfo->backup_media_type == cdr) {
715        extra_cdrom_params[0] = '\0';
716        if (!bkpinfo->manual_cd_tray) {
717            strcat(extra_cdrom_params, "-waiti ");
718        }
719        if (bkpinfo->backup_media_type == cdrw) {
720            strcat(extra_cdrom_params, "blank=fast ");
721        }
722        if (find_home_of_exe("cdrecord")) {
723            strcpy(cdr_exe, "cdrecord");
724        } else if (find_home_of_exe("dvdrecord")) {
725            strcpy(cdr_exe, "dvdrecord");
726        } else {
727            fatal_error("Please install either cdrecord or dvdrecord.");
728        }
729        if (bkpinfo->nonbootable_backup) {
730            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
731        } else if
732#ifdef __FreeBSD__
733            (TRUE)
734#else
735            (bkpinfo->make_cd_use_lilo)
736#endif
737#ifdef __IA64__
738    {
739        strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
740    }
741#else
742    {
743        strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
744    }
745#endif
746        else
747        {
748            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
749        }
750        if (bkpinfo->manual_cd_tray) {
751            sprintf(bkpinfo->call_before_iso,
752                    "%s -o %s/temporary.iso . 2>> _ERR_", mondo_mkisofs_sz,
753                    bkpinfo->tmpdir);
754            sprintf(bkpinfo->call_make_iso,
755                    "%s %s -v %s fs=4m dev=%s speed=%d %s/temporary.iso",
756                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
757                    extra_cdrom_params, bkpinfo->media_device,
758                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
759        } else {
760            sprintf(bkpinfo->call_make_iso,
761                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
762                    mondo_mkisofs_sz, cdr_exe,
763                    (bkpinfo->please_dont_eject) ? " " : "-eject",
764                    extra_cdrom_params, bkpinfo->media_device,
765                    bkpinfo->cdrw_speed);
766        }
767    }                           // end of CD code
768
769    /*
770       if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
771       {
772       sprintf (tmp,
773       "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
774       bkpinfo->media_device, bkpinfo->internal_tape_block_size);
775       if (system(tmp))
776       {
777       retval++;
778       fprintf (stderr,
779       "Cannot write to tape device. Is the tape set read-only?\n");
780       }
781       } // end of tape code
782     */
783
784
785    if (bkpinfo->backup_media_type == iso) {
786
787/* Patch by Conor Daly <conor.daly@met.ie>
788 * 23-june-2004
789 * Break up isodir into iso_mnt and iso_path
790 * These will be used along with iso-dev at restore time
791 * to locate the ISOs where ever they're mounted
792 */
793
794        log_it("isodir = %s", bkpinfo->isodir);
795        sprintf(command, "df %s | tail -n1 | cut -d' ' -f1",
796                bkpinfo->isodir);
797        log_it("command = %s", command);
798        log_it("res of it = %s",
799               call_program_and_get_last_line_of_output(command));
800        sprintf(iso_dev, "%s",
801                call_program_and_get_last_line_of_output(command));
802        sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
803        write_one_liner_data_file(tmp,
804                                  call_program_and_get_last_line_of_output
805                                  (command));
806
807        sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
808                iso_dev);
809        log_it("command = %s", command);
810        log_it("res of it = %s",
811               call_program_and_get_last_line_of_output(command));
812        sprintf(iso_mnt, "%s",
813                call_program_and_get_last_line_of_output(command));
814        sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
815        write_one_liner_data_file(tmp,
816                                  call_program_and_get_last_line_of_output
817                                  (command));
818        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
819        sprintf(iso_tmp, "%s", bkpinfo->isodir);
820        if (strlen(iso_tmp) < strlen(iso_mnt)) {
821            iso_path[0] = '\0';
822        } else {
823            sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
824        }
825        sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
826        write_one_liner_data_file(tmp, iso_path);
827        log_it("isodir: %s", iso_path);
828
829/* End patch */
830    }                           // end of iso code
831
832    if (bkpinfo->backup_media_type == nfs) {
833        strcpy(hostname, bkpinfo->nfs_mount);
834        colon = strchr(hostname, ':');
835        if (!colon) {
836            log_it("nfs mount doesn't have a colon in it");
837            retval++;
838        } else {
839            struct hostent *hent;
840
841            *colon = '\0';
842            hent = gethostbyname(hostname);
843            if (!hent) {
844                log_it("Can't resolve NFS mount (%s): %s", hostname,
845                       hstrerror(h_errno));
846                retval++;
847            } else {
848                strcpy(ip_address, inet_ntoa
849                       ((struct in_addr)
850                        *((struct in_addr *) hent->h_addr)));
851                strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
852                strcpy(bkpinfo->nfs_mount, ip_address);
853            }
854        }
855        store_nfs_config(bkpinfo);
856    }
857
858    log_it("Finished processing incoming params");
859    if (retval) {
860        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
861    }
862    sprintf(tmp, "%s", MONDO_TMPISOS);  /* added #define 22 apr 2002 */
863    if (does_file_exist(tmp)) {
864        unlink(tmp);
865    }
866    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
867        log_it("tmpdir or scratchdir are blank/missing");
868        retval++;
869    }
870    if (bkpinfo->include_paths[0] == '\0') {
871        //      fatal_error ("Why no backup path?");
872        strcpy(bkpinfo->include_paths, "/");
873    }
874    chmod(bkpinfo->scratchdir, 0700);
875    chmod(bkpinfo->tmpdir, 0700);
876    g_backup_media_type = bkpinfo->backup_media_type;
877    paranoid_free(mtpt);
878    paranoid_free(extra_cdrom_params);
879    paranoid_free(mondo_mkisofs_sz);
880    paranoid_free(command);
881    paranoid_free(hostname);
882    paranoid_free(ip_address);
883    paranoid_free(cdr_exe);
884    paranoid_free(tmp);
885    paranoid_free(iso_dev);
886    paranoid_free(iso_mnt);
887    paranoid_free(iso_tmp);
888    paranoid_free(iso_path);
889    return (retval);
890}
891
892
893
894/**
895 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
896 * Seeds the random-number generator, loads important modules, checks the sanity
897 * of the user's Linux distribution, and deletes logfile.
898 * @param bkpinfo The backup information structure. Will be initialized.
899 * @return number of errors (0 for success)
900 */
901int pre_param_configuration(struct s_bkpinfo *bkpinfo)
902{
903    int res = 0;
904
905    make_hole_for_dir(MNT_CDROM);
906    assert(bkpinfo != NULL);
907    srandom((unsigned long) (time(NULL)));
908    insmod_crucial_modules();
909    reset_bkpinfo(bkpinfo);     // also sets defaults ('/'=backup path, 3=compression level)
910    if (bkpinfo->disaster_recovery) {
911        if (!does_nonMS_partition_exist()) {
912            fatal_error
913                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
914        }
915    }
916
917    unlink(MONDO_TRACEFILE);
918    run_program_and_log_output("rm -Rf /tmp/changed.files*", FALSE);
919    if (find_and_store_mondoarchives_home(g_mondo_home)) {
920        fprintf(stderr,
921                "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");
922        res++;
923        return (res);
924    }
925    res += some_basic_system_sanity_checks();
926    if (res) {
927        log_it("Your distribution did not pass Mondo's sanity test.");
928    }
929    g_current_media_number = 1;
930    bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
931    return (res);
932}
933
934
935
936
937/**
938 * Reset all fields of the backup information structure to a sensible default.
939 * @param bkpinfo The @c bkpinfo to reset.
940 */
941void reset_bkpinfo(struct s_bkpinfo *bkpinfo)
942{
943    int i;
944
945    log_msg(1, "Hi");
946    assert(bkpinfo != NULL);
947    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
948    bkpinfo->manual_cd_tray = FALSE;
949    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
950    bkpinfo->media_device[0] = '\0';
951    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
952        bkpinfo->media_size[i] = -1;
953    }
954    bkpinfo->boot_loader = '\0';
955    bkpinfo->boot_device[0] = '\0';
956    bkpinfo->zip_exe[0] = '\0';
957    bkpinfo->zip_suffix[0] = '\0';
958    bkpinfo->restore_path[0] = '\0';
959    bkpinfo->use_lzo = FALSE;
960    bkpinfo->do_not_compress_these[0] = '\0';
961    bkpinfo->verify_data = FALSE;
962    bkpinfo->backup_data = FALSE;
963    bkpinfo->restore_data = FALSE;
964    bkpinfo->disaster_recovery =
965        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
966    if (bkpinfo->disaster_recovery) {
967        strcpy(bkpinfo->isodir, "/");
968    } else {
969        strcpy(bkpinfo->isodir, "/root/images/mondo");
970    }
971    strcpy(bkpinfo->prefix, "mondorescue");
972
973    bkpinfo->scratchdir[0] = '\0';
974    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
975    sprintf(bkpinfo->tmpdir, "/tmp/tmpfs/mondo.tmp.%d", (int) (random() % 32768));  // for mondorestore
976    bkpinfo->optimal_set_size = 0;
977    bkpinfo->backup_media_type = none;
978    strcpy(bkpinfo->include_paths, "/");
979    bkpinfo->exclude_paths[0] = '\0';
980    bkpinfo->call_before_iso[0] = '\0';
981    bkpinfo->call_make_iso[0] = '\0';
982    bkpinfo->call_burn_iso[0] = '\0';
983    bkpinfo->call_after_iso[0] = '\0';
984    bkpinfo->image_devs[0] = '\0';
985    bkpinfo->postnuke_tarball[0] = '\0';
986    bkpinfo->kernel_path[0] = '\0';
987    bkpinfo->nfs_mount[0] = '\0';
988    bkpinfo->nfs_remote_dir[0] = '\0';
989    bkpinfo->wipe_media_first = FALSE;
990    bkpinfo->differential = FALSE;
991    bkpinfo->cdrw_speed = 0;
992// patch by Herman Kuster 
993    bkpinfo->differential = 0;
994// patch end
995    bkpinfo->compression_level = 3;
996}
997
998
999
1000
1001/**
1002 * Get the remaining free space (in MB) on @p partition.
1003 * @param partition The partition to check free space on (either a device or a mountpoint).
1004 * @return The free space on @p partition, in MB.
1005 */
1006long free_space_on_given_partition(char *partition)
1007{
1008    char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
1009    long res;
1010
1011    assert_string_is_neither_NULL_nor_zerolength(partition);
1012
1013    sprintf(command, "df -m %s &> /dev/null", partition);
1014    if (system(command)) {
1015        return (-1);
1016    }                           // partition does not exist
1017    sprintf(command, "df -m %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
1018            partition);
1019    strcpy(out_sz, call_program_and_get_last_line_of_output(command));
1020    if (strlen(out_sz) == 0) {
1021        return (-1);
1022    }                           // error within df, probably
1023    res = atol(out_sz);
1024    return (res);
1025}
1026
1027
1028
1029/**
1030 * Check the user's system for sanity. Checks performed:
1031 * - make sure user has enough RAM (32mb required, 64mb recommended)
1032 * - make sure user has enough free space in @c /
1033 * - check kernel for ramdisk support
1034 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
1035 * - make sure CD-ROM is unmounted
1036 * - make sure /etc/modules.conf exists
1037 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
1038 *
1039 * @return number of problems with the user's setup (0 for success)
1040 */
1041int some_basic_system_sanity_checks()
1042{
1043
1044    /*@ buffers ************ */
1045    char tmp[MAX_STR_LEN];
1046    //  char command[MAX_STR_LEN];
1047
1048    /*@ int's *************** */
1049    int retval = 0;
1050    long Lres;
1051
1052
1053    mvaddstr_and_log_it(g_currentY, 0,
1054                        "Checking sanity of your Linux distribution");
1055#ifndef __FreeBSD__
1056    if (system("which mkfs.vfat &> /dev/null")
1057        && !system("which mkfs.msdos &> /dev/null")) {
1058        log_it
1059            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
1060        run_program_and_log_output
1061            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
1062    }
1063    strcpy(tmp,
1064           call_program_and_get_last_line_of_output
1065           ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
1066    if (atol(tmp) < 35000) {
1067        retval++;
1068        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
1069    }
1070    if (atol(tmp) < 66000) {
1071        log_to_screen
1072            ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
1073    }
1074#endif
1075
1076    if ((Lres = free_space_on_given_partition("/root")) == -1) {
1077        Lres = free_space_on_given_partition("/");
1078    }
1079    log_it("Free space on given partition = %ld MB", Lres);
1080
1081    if (Lres < 50) {
1082        run_program_and_log_output
1083            ("rm -Rf /root/images/mindi; mkdir -p /home/root/images/mindi; mkdir -p /root/images; ln -sf /home/root/images/mindi /root/images/mindi",
1084             3);
1085        //      fatal_error("Your / (or /root) partition has <50MB free. Please adjust your partition table to something saner.");
1086    }
1087
1088    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
1089        retval++;
1090        log_to_screen
1091            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
1092        fatal_error
1093            ("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. :)");
1094    }
1095#ifndef __FreeBSD__
1096    if (run_program_and_log_output
1097        ("cat /proc/devices | grep ramdisk", FALSE)) {
1098        if (!ask_me_yes_or_no
1099            ("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?"))
1100        {
1101            //          retval++;
1102            log_to_screen
1103                ("It looks as if your kernel lacks ramdisk and initrd support.");
1104            log_to_screen
1105                ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
1106        }
1107    }
1108#endif
1109    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
1110    retval += whine_if_not_found("mkisofs");
1111    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
1112        retval += whine_if_not_found("cdrecord");
1113    }
1114    retval += whine_if_not_found("bzip2");
1115    retval += whine_if_not_found("awk");
1116    retval += whine_if_not_found("md5sum");
1117    retval += whine_if_not_found("strings");
1118    retval += whine_if_not_found("mindi");
1119    retval += whine_if_not_found("buffer");
1120
1121    // abort if Windows partition but no ms-sys and parted
1122    if (!run_program_and_log_output
1123        ("mount | grep -w vfat | grep -v /dev/fd | grep -v nexdisk", 0)
1124        ||
1125        !run_program_and_log_output
1126        ("mount | grep -w dos | grep -v /dev/fd | grep -v nexdisk", 0)) {
1127        log_to_screen("I think you have a Windows 9x partition.");
1128        retval += whine_if_not_found("parted");
1129#ifndef __IA64__
1130        /* IA64 always has one vfat partition for EFI even without Windows */
1131        // retval +=
1132        if (!find_home_of_exe("ms-sys")) {
1133            log_to_screen("Please install ms-sys just in case.");
1134        }
1135#endif
1136    }
1137
1138    if (!find_home_of_exe("cmp")) {
1139        if (!find_home_of_exe("true")) {
1140            whine_if_not_found("cmp");
1141        } else {
1142            log_to_screen
1143                ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1144            if (run_program_and_log_output
1145                ("cp -f `which true` /usr/bin/cmp", 0)) {
1146                fatal_error("Failed to create dummy 'cmp' file.");
1147            }
1148        }
1149    }
1150    run_program_and_log_output
1151        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1152    strcpy(tmp,
1153           call_program_and_get_last_line_of_output
1154           ("mount | grep -E \"cdr(om|w)\""));
1155    if (strcmp("", tmp)) {
1156        if (strstr(tmp, "autofs")) {
1157            log_to_screen
1158                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1159            log_to_screen
1160                ("if a CD actually is inserted. If a CD is inserted, please");
1161            log_to_screen("eject it. Thank you.");
1162            log_it
1163                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1164        } else
1165            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1166            retval++;
1167            fatal_error
1168                ("Your CD-ROM drive is mounted. Please unmount it.");
1169        }
1170    }
1171#ifndef __FreeBSD__
1172    if (!does_file_exist("/etc/modules.conf")) {
1173        if (does_file_exist("/etc/conf.modules")) {
1174            log_it("Linking /etc/modules.conf to /etc/conf.modules");
1175            run_program_and_log_output
1176                ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
1177        } else if (does_file_exist("/etc/modprobe.d")) {
1178            log_it
1179                ("Directory /etc/modprobe.d found. mindi will use its contents.");
1180        } else if (does_file_exist("/etc/modprobe.conf")) {
1181            log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
1182            run_program_and_log_output
1183                ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
1184        } else {
1185            retval++;
1186            log_to_screen
1187                ("Please find out what happened to /etc/modules.conf");
1188        }
1189    }
1190#endif
1191
1192    run_program_and_log_output("cat /etc/fstab", 5);
1193#ifdef __FreeBSD__
1194    run_program_and_log_output("vinum printconfig", 5);
1195#else
1196    run_program_and_log_output("cat /etc/raidtab", 5);
1197#endif
1198
1199    if (run_program_and_log_output("mindi -V", 1)) {
1200        log_to_screen("Could not ascertain mindi's version number.");
1201        log_to_screen
1202            ("You have not installed Mondo and/or Mindi properly.");
1203        log_to_screen("Please uninstall and reinstall them both.");
1204        fatal_error("Please reinstall Mondo and Mindi.");
1205    }
1206    if (run_program_and_log_output
1207        ("mindi --makemountlist /tmp/mountlist.txt.test", 5)) {
1208        log_to_screen
1209            ("Mindi --makemountlist /tmp/mountlist.txt.test failed for some reason.");
1210        log_to_screen
1211            ("Please run that command by hand and examine /var/log/mindi.log");
1212        log_to_screen
1213            ("for more information. Perhaps your /etc/fstab file is insane.");
1214        log_to_screen
1215            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1216        retval++;
1217    }
1218
1219    if (!run_program_and_log_output("fdisk -l | grep -i raid", 1)
1220        && !does_file_exist("/etc/raidtab")) {
1221        log_to_screen
1222            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1223        create_raidtab_from_mdstat("/etc/raidtab", "/proc/mdstat");
1224    }
1225
1226    if (retval) {
1227        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1228    } else {
1229        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1230    }
1231    return (retval);
1232}
1233
1234/**
1235 * Retrieve the line containing @p label from the config file.
1236 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1237 * @param label What to read from the file.
1238 * @param value Where to put it.
1239 * @return 0 for success, 1 for failure.
1240 */
1241int read_cfg_var(char *config_file, char *label, char *value)
1242{
1243    /*@ buffer ****************************************************** */
1244    char command[MAX_STR_LEN * 2];
1245    char tmp[MAX_STR_LEN];
1246
1247    /*@ end vars *************************************************** */
1248
1249    assert_string_is_neither_NULL_nor_zerolength(config_file);
1250    assert_string_is_neither_NULL_nor_zerolength(label);
1251    if (!does_file_exist(config_file)) {
1252        sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1253                config_file);
1254        log_to_screen(tmp);
1255        value[0] = '\0';
1256        return (1);
1257    } else if (strstr(value, "/dev/") && strstr(value, "t0")
1258               && !strcmp(label, "media-dev")) {
1259        log_msg(2, "FYI, I shan't read new value for %s - already got %s",
1260                label, value);
1261        return (0);
1262    } else {
1263        sprintf(command, "cat %s | grep \"%s .*\" | cut -d' ' -f2,3,4,5",
1264                config_file, label);
1265        strcpy(value, call_program_and_get_last_line_of_output(command));
1266        if (strlen(value) == 0) {
1267            return (1);
1268        } else {
1269            return (0);
1270        }
1271    }
1272}
1273
1274
1275
1276/**
1277 * Remount @c supermount if it was unmounted earlier.
1278 */
1279void remount_supermounts_if_necessary()
1280{
1281    if (g_remount_cdrom_at_end) {
1282        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1283    }
1284    if (g_remount_floppy_at_end) {
1285        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1286    }
1287}
1288
1289/**
1290 * Unmount @c supermount if it's mounted.
1291 */
1292void unmount_supermounts_if_necessary()
1293{
1294    if (run_program_and_log_output
1295        ("mount | grep cdrom | grep super", FALSE) == 0) {
1296        g_remount_cdrom_at_end = TRUE;
1297        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1298    }
1299    if (run_program_and_log_output
1300        ("mount | grep floppy | grep super", FALSE) == 0) {
1301        g_remount_floppy_at_end = TRUE;
1302        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1303    }
1304}
1305
1306/**
1307 * Whether we had to stop autofs (if so, restart it at end).
1308 */
1309bool g_autofs_stopped = FALSE;
1310
1311/**
1312 * Path to the autofs initscript ("" if none exists).
1313 */
1314char g_autofs_exe[MAX_STR_LEN];
1315
1316/**
1317 * Autofs initscript in Xandros Linux distribution.
1318 */
1319#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1320
1321/**
1322 * Autofs initscript in most Linux distributions.
1323 */
1324#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1325
1326/**
1327 * If autofs is mounted, stop it (restart at end).
1328 */
1329void stop_autofs_if_necessary()
1330{
1331    char tmp[MAX_STR_LEN];
1332
1333    g_autofs_exe[0] = '\0';
1334    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1335        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1336    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1337        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1338    }
1339
1340    if (!g_autofs_exe[0]) {
1341        log_msg(3, "No autofs detected.");
1342    } else {
1343        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1344// FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1345        sprintf(tmp, "%s stop", g_autofs_exe);
1346        if (run_program_and_log_output(tmp, 2)) {
1347            log_it("Failed to stop autofs - I assume it wasn't running");
1348        } else {
1349            g_autofs_stopped = TRUE;
1350            log_it("Stopped autofs OK");
1351        }
1352    }
1353}
1354
1355/**
1356 * If autofs was stopped earlier, restart it.
1357 */
1358void restart_autofs_if_necessary()
1359{
1360    char tmp[MAX_STR_LEN];
1361
1362    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1363        log_msg(3, "No autofs detected.");
1364        return;
1365    }
1366    sprintf(tmp, "%s start", g_autofs_exe);
1367    if (run_program_and_log_output(tmp, 2)) {
1368        log_it("Failed to start autofs");
1369    } else {
1370        g_autofs_stopped = FALSE;
1371        log_it("Started autofs OK");
1372    }
1373}
1374
1375
1376/**
1377 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1378 */
1379void mount_boot_if_necessary()
1380{
1381    char tmp[MAX_STR_LEN];
1382    char command[MAX_STR_LEN];
1383
1384    log_msg(1, "Started sub");
1385    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1386    g_boot_mountpt[0] = '\0';
1387    log_msg(4, "Done. Great. Seeting command to something");
1388    strcpy(command,
1389           "cat /etc/fstab | grep -v \":\" | grep -vx \"#.*\" | grep -w \"/boot\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1390    log_msg(4, "Cool. Command = '%s'", command);
1391    strcpy(tmp, call_program_and_get_last_line_of_output(command));
1392    log_msg(4, "tmp = '%s'", tmp);
1393    if (tmp[0]) {
1394        log_it("/boot is at %s according to /etc/fstab", tmp);
1395        if (strstr(tmp, "LABEL=")) {
1396            if (!run_program_and_log_output("mount /boot", 5)) {
1397                strcpy(g_boot_mountpt, "/boot");
1398                log_msg(1, "Mounted /boot");
1399            } else {
1400                log_it("...ignored cos it's a label :-)");
1401            }
1402        } else {
1403            sprintf(command, "mount | grep -w \"%s\"", tmp);
1404            log_msg(3, "command = %s", command);
1405            if (run_program_and_log_output(command, 5)) {
1406                strcpy(g_boot_mountpt, tmp);
1407                sprintf(tmp,
1408                        "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1409                        g_boot_mountpt);
1410                log_it(tmp);
1411                sprintf(tmp, "mount %s", g_boot_mountpt);
1412                if (run_program_and_log_output(tmp, 5)) {
1413                    g_boot_mountpt[0] = '\0';
1414                    log_msg(1, "Plan B");
1415                    if (!run_program_and_log_output("mount /boot", 5)) {
1416                        strcpy(g_boot_mountpt, "/boot");
1417                        log_msg(1, "Plan B worked");
1418                    } else {
1419                        log_msg(1,
1420                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1421                    }
1422                }
1423            }
1424        }
1425    }
1426    log_msg(1, "Ended sub");
1427}
1428
1429
1430/**
1431 * If we mounted /boot earlier, unmount it.
1432 */
1433void unmount_boot_if_necessary()
1434{
1435    char tmp[MAX_STR_LEN];
1436
1437    log_msg(3, "starting");
1438    if (g_boot_mountpt[0]) {
1439        sprintf(tmp, "umount %s", g_boot_mountpt);
1440        if (run_program_and_log_output(tmp, 5)) {
1441            log_it("WARNING - unable to unmount /boot");
1442        }
1443    }
1444    log_msg(3, "leaving");
1445}
1446
1447
1448
1449/**
1450 * Write a line to a configuration file. Writes a line of the form,
1451 * @c label @c value.
1452 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1453 * @param label What to call this bit of data you're writing.
1454 * @param value The bit of data you're writing.
1455 * @return 0 for success, 1 for failure.
1456 */
1457int write_cfg_var(char *config_file, char *label, char *value)
1458{
1459    /*@ buffers ***************************************************** */
1460    char command[MAX_STR_LEN * 2];
1461    char tempfile[MAX_STR_LEN];
1462    char tmp[MAX_STR_LEN];
1463
1464
1465    /*@ end vars *************************************************** */
1466    assert_string_is_neither_NULL_nor_zerolength(config_file);
1467    assert_string_is_neither_NULL_nor_zerolength(label);
1468    assert(value != NULL);
1469    if (!does_file_exist(config_file)) {
1470        sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1471                config_file);
1472        log_to_screen(tmp);
1473        return (1);
1474    }
1475    strcpy(tempfile,
1476           call_program_and_get_last_line_of_output
1477           ("mktemp -q /tmp/mojo-jojo.blah.XXXXXX"));
1478    if (does_file_exist(config_file)) {
1479        sprintf(command, "cat %s | grep -vx \"%s .*\" > %s", config_file,
1480                label, tempfile);
1481        paranoid_system(command);
1482    }
1483    sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1484    paranoid_system(command);
1485    sprintf(command, "mv -f %s %s", tempfile, config_file);
1486    paranoid_system(command);
1487    unlink(tempfile);
1488    return (0);
1489}
1490
1491
1492/**
1493 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1494 * information to the logfile.
1495 */
1496void standard_log_debug_msg(int debug_level, const char *szFile,
1497                            const char *szFunction, int nLine,
1498                            const char *fmt, ...)
1499{
1500    va_list args;
1501    int i;
1502    static int depth = 0;
1503    char *tmp;
1504    FILE *fout;
1505
1506    if (depth > 5) {
1507        depth--;
1508        return;
1509    }
1510    depth++;
1511
1512    malloc_string(tmp);
1513
1514    if (debug_level <= g_loglevel) {
1515        va_start(args, fmt);
1516        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1517            return;
1518        }                       // fatal_error("Failed to openout to logfile - sheesh..."); }
1519
1520        // add tabs to distinguish log levels
1521        if (debug_level > 0) {
1522            for (i = 1; i < debug_level; i++)
1523                fprintf(fout, "\t");
1524            if (getpid() == g_main_pid)
1525                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1526                        nLine);
1527            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1528                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1529                        nLine);
1530            else
1531                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1532                        szFunction, nLine);
1533        }
1534        vfprintf(fout, fmt, args);
1535
1536        // do not slow down the progran if standard debug level
1537        // must be enabled: if no flush, the log won't be up-to-date if there
1538        // is a segfault
1539        //if (g_dwDebugLevel != 1)
1540
1541        va_end(args);
1542        fprintf(fout, "\n");
1543        paranoid_fclose(fout);
1544    }
1545    depth--;
1546    paranoid_free(tmp);
1547}
1548
1549/**
1550 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1551 */
1552void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1553                       ...) = standard_log_debug_msg;
1554
1555
1556/**
1557 * If @p y, malloc @p x, else free @p x.
1558 * @bug This function seems orphaned. Please remove.
1559 */
1560#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1561
1562/**
1563 * Allocate or free important globals, depending on @p mal.
1564 * @param mal If TRUE, malloc; if FALSE, free.
1565 */
1566void do_libmondo_global_strings_thing(int mal)
1567{
1568    if (mal) {
1569        iamhere("Malloc'ing globals");
1570        malloc_string(g_boot_mountpt);
1571        malloc_string(g_mondo_home);
1572        malloc_string(g_tmpfs_mountpt);
1573        malloc_string(g_erase_tmpdir_and_scratchdir);
1574        malloc_string(g_serial_string);
1575        malloc_string(g_magicdev_command);
1576    } else {
1577        iamhere("Freeing globals");
1578        paranoid_free(g_boot_mountpt);
1579        paranoid_free(g_mondo_home);
1580        paranoid_free(g_tmpfs_mountpt);
1581        paranoid_free(g_erase_tmpdir_and_scratchdir);
1582        paranoid_free(g_serial_string);
1583        paranoid_free(g_magicdev_command);
1584    }
1585
1586    /*
1587       char**list_of_arrays[] = {
1588       &g_boot_mountpt,
1589       &g_mondo_home,
1590       &g_tmpfs_mountpt,
1591       &g_erase_tmpdir_and_scratchdir,
1592       &g_serial_string,
1593       &g_magicdev_command,
1594       NULL};
1595
1596       char**ppcurr;
1597       int i;
1598
1599       for(i=0;list_of_arrays[i];i++)
1600       {
1601       log_msg(5, "Allocating %d", i);
1602       ppcurr = list_of_arrays[i];
1603       if (mal)
1604       { *ppcurr = malloc(MAX_STR_LEN); }
1605       else
1606       {
1607       if (*ppcurr)
1608       {
1609       free(*ppcurr);
1610       }
1611       }
1612       }
1613       log_msg(5, "Returning");
1614     */
1615}
1616
1617/**
1618 * Allocate important globals.
1619 * @see do_libmondo_global_strings_thing
1620 */
1621void malloc_libmondo_global_strings(void)
1622{
1623    do_libmondo_global_strings_thing(1);
1624}
1625
1626/**
1627 * Free important globals.
1628 * @see do_libmondo_global_strings_thing
1629 */
1630void free_libmondo_global_strings(void)
1631{
1632    do_libmondo_global_strings_thing(0);
1633}
1634
1635
1636
1637/**
1638 * Stop @c magicdev if it's running.
1639 * The command used to start it is saved in @p g_magicdev_command.
1640 */
1641void stop_magicdev_if_necessary()
1642{
1643    strcpy(g_magicdev_command,
1644           call_program_and_get_last_line_of_output
1645           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1646    if (g_magicdev_command[0]) {
1647        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1648        paranoid_system("killall magicdev");
1649    }
1650}
1651
1652
1653/**
1654 * Restart magicdev if it was stopped.
1655 */
1656void restart_magicdev_if_necessary()
1657{
1658    char *tmp;
1659
1660    malloc_string(tmp);
1661    if (g_magicdev_command && g_magicdev_command[0]) {
1662        sprintf(tmp, "%s &", g_magicdev_command);
1663        paranoid_system(tmp);
1664    }
1665    paranoid_free(tmp);
1666}
1667
1668/* @} - end of utilityGroup */
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