source: branches/2.2.4/mondo/src/common/libmondo-tools.c @ 1372

Last change on this file since 1372 was 1372, checked in by Bruno Cornec, 13 years ago

Fix a bug in mondoarchive for UUID support of /boot (only LABEL were handled)

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File size: 45.0 KB
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1/* libmondo-tools.c                                  misc tools
2   $Id: libmondo-tools.c 1372 2007-04-30 08:42:48Z 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 1372 2007-04-30 08:42:48Z 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;
196extern char *MONDO_LOGFILE;
197
198/**
199 * @addtogroup globalGroup
200 * @{
201 */
202bool g_remount_cdrom_at_end,    ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
203 g_remount_floppy_at_end;       ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
204bool g_cd_recovery;             ///< TRUE if we're making an "autonuke" backup.
205double g_kernel_version;
206
207/**
208 * The place where /boot is mounted.
209 */
210char *g_boot_mountpt = NULL;
211
212/**
213 * The location of Mondo's home directory.
214 */
215char *g_mondo_home = NULL;
216
217/**
218 * The serial string (used to differentiate between backups) of the current backup.
219 */
220char *g_serial_string = NULL;
221
222/**
223 * The location where tmpfs is mounted, or "" if it's not mounted.
224 */
225char *g_tmpfs_mountpt = NULL;
226char *g_magicdev_command = NULL;
227
228/**
229 * The default maximum level to log messages at or below.
230 */
231int g_loglevel = DEFAULT_DEBUG_LEVEL;
232
233/* @} - end of globalGroup */
234
235
236extern pid_t g_buffer_pid;
237extern pid_t g_main_pid;
238
239extern t_bkptype g_backup_media_type;
240
241extern bool am_I_in_disaster_recovery_mode(void);
242
243
244/**
245 * @addtogroup utilityGroup
246 * @{
247 */
248/**
249 * Assertion handler. Prints a friendly message to the user,
250 * offering to ignore all, dump core, break to debugger,
251 * exit, or ignore. Intended to be used with an assert() macro.
252 *
253 * @param file The file in which the assertion triggered.
254 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
255 * @param line The line number of the assert() statement.
256 * @param exp The expression that failed (as a string).
257 */
258void _mondo_assert_fail(const char *file,
259                        const char *function, int line, const char *exp)
260{
261    static int ignoring_assertions = 0;
262    bool is_valid = TRUE;
263
264    log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
265           function);
266    if (ignoring_assertions) {
267        log_it("Well, the user doesn't care...");
268        return;
269    }
270#ifndef _XWIN
271    if (!g_text_mode)
272        newtSuspend();
273#endif
274    printf("ASSERTION FAILED: `%s'\n", exp);
275    printf("\tat %s:%d in %s\n\n", file, line, function);
276    printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
277    do {
278        is_valid = TRUE;
279        switch (toupper(getchar())) {
280        case 'A':               // ignore (A)ll
281            ignoring_assertions = 1;
282            break;
283        case 'B':               // a(B)ort
284            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
285            raise(SIGABRT);
286            break;              /* "can't get here" */
287        case 'D':               // (D)ebug, aka asm("int 3")
288#ifdef __IA32__
289            __asm__ __volatile__("int $3"); // break to debugger
290#endif
291            break;
292        case 'E':               // (E)xit
293            fatal_error("Failed assertion -- see above for details");
294            break;              /* "can't get here" */
295        case 'I':               // (I)gnore
296            break;
297            /* These next two work as follows:
298               the `default' catches the user's invalid choice and says so;
299               the '\n' catches the newline on the end and prints the prompt again.
300             */
301        case '\n':
302            printf
303                ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
304            break;
305        default:
306            is_valid = FALSE;
307            printf("Invalid choice.\n");
308            break;
309        }
310    } while (!is_valid);
311
312    if (ignoring_assertions) {
313        log_it("Ignoring ALL assertions from now on.");
314    } else {
315        log_it("Ignoring assertion: %s", exp);
316    }
317
318    getchar();                  // skip \n
319
320#ifndef _XWIN
321    if (!g_text_mode)
322        newtResume();
323#endif
324}
325
326/**
327 * Clean's up users' KDE desktops.
328 * @bug Details about this function are unknown.
329 */
330void clean_up_KDE_desktop_if_necessary(void)
331{
332    char *tmp;
333
334    malloc_string(tmp);
335    strcpy(tmp,
336           "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
337file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
338awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
339else { print $0;};}' $file.old  > $file ; fi ; done");
340    run_program_and_log_output(tmp, 5);
341    paranoid_free(tmp);
342}
343
344
345/**
346 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
347 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
348 *
349 * @param home_sz String to store the home directory ("" if it could not be found).
350 * @return 0 for success, nonzero for failure.
351 */
352int find_and_store_mondoarchives_home(char *home_sz)
353{
354    assert(home_sz != NULL);
355    strcpy(home_sz, MONDO_SHARE);
356    return (0);
357}
358
359
360char *get_architecture()
361{
362#ifdef __IA32__
363    return ("i386");
364#endif
365#ifdef __IA64__
366    return ("ia64");
367#endif
368    return ("unknown");
369}
370
371
372
373double get_kernel_version()
374{
375    char *p, tmp[200];
376    double d;
377#ifdef __FreeBSD__
378    // JOSH - FIXME :)
379    d = 5.2;                    // :-)
380#else
381    strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
382    p = strchr(tmp, '.');
383    if (p) {
384        p = strchr(++p, '.');
385        if (p) {
386            while (*p) {
387                *p = *(p + 1);
388                p++;
389            }
390        }
391    }
392//  log_msg(1, "tmp = '%s'", tmp);
393    d = atof(tmp);
394#endif
395    log_msg(1, "g_kernel_version = %f", d);
396    return (d);
397}
398
399
400
401
402
403/**
404 * Get the current time.
405 * @return number of seconds since the epoch.
406 */
407long get_time()
408{
409    return (long) time((void *) 0);
410}
411
412
413
414
415
416
417
418/**
419 * Initialize a RAID volume structure, setting fields to zero. The
420 * actual hard drive is unaffected.
421 *
422 * @param raidrec The RAID volume structure to initialize.
423 * @note This function is system dependent.
424 */
425#ifdef __FreeBSD__
426void initialize_raidrec(struct vinum_volume *raidrec)
427{
428    int i, j;
429    raidrec->volname[0] = '\0';
430    raidrec->plexes = 0;
431    for (i = 0; i < 9; ++i) {
432        raidrec->plex[i].raidlevel = -1;
433        raidrec->plex[i].stripesize = 0;
434        raidrec->plex[i].subdisks = 0;
435        for (j = 0; j < 9; ++j) {
436            strcpy(raidrec->plex[i].sd[j].which_device, "");
437        }
438    }
439}
440#else
441void initialize_raidrec(struct raid_device_record *raidrec)
442{
443    assert(raidrec != NULL);
444    raidrec->raid_device[0] = '\0';
445    raidrec->raid_level = -9;
446    raidrec->persistent_superblock = 1;
447    raidrec->chunk_size = 64;
448    raidrec->parity = -1;
449    raidrec->data_disks.entries = 0;
450    raidrec->spare_disks.entries = 0;
451    raidrec->parity_disks.entries = 0;
452    raidrec->failed_disks.entries = 0;
453    raidrec->additional_vars.entries = 0;
454}
455#endif
456
457
458
459
460/**
461 * Insert modules that Mondo requires.
462 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
463 * @c msdosfs and @c ext2fs for FreeBSD.
464 */
465void insmod_crucial_modules(void)
466{
467#ifdef __FreeBSD__
468    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
469    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
470#else
471    system("modprobe -a msdos vfat loop &> /dev/null");
472#endif
473}
474
475
476/**
477 * Log a trace message to the trace file.
478 * @bug This function seems orphaned. Please remove.
479 */
480void log_trace(char *o)
481{
482    /*@ pointers **************************************************** */
483    FILE *fout;
484
485    /*@ buffers ***************************************************** */
486    char output[MAX_STR_LEN];
487
488    /*@ int    ****************************************************** */
489    int i;
490
491    /*@ end vars *************************************************** */
492
493    if (o[0] == '\0') {
494        return;
495    }
496    strcpy(output, o);
497    i = (int) strlen(output);
498    if (i <= 0) {
499        return;
500    }
501    if (output[i - 1] < 32) {
502        output[i - 1] = '\0';
503    }
504    if (g_text_mode
505        /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
506        printf("%s\n", output);
507    }
508
509    fout = fopen(MONDO_TRACEFILE, "a");
510    if (fout) {
511        fprintf(fout, "%s\n", output);
512        paranoid_fclose(fout);
513    } else {
514        log_OS_error("Cannot write to tracefile");
515    }
516}
517
518
519
520
521
522/**
523 * Finish configuring the backup information structure. Call this function
524 * to set the parameters that depend on those that can be given on the command
525 * line.
526 *
527 * @param bkpinfo The backup information structure. Fields modified/used:
528 * - Used: @c bkpinfo->backup_data
529 * - Used: @c bkpinfo->backup_media_type
530 * - Used: @c bkpinfo->cdrw_speed
531 * - Used: @c bkpinfo->compression_level
532 * - Used: @c bkpinfo->include_paths
533 * - Used: @c bkpinfo->prefix
534 * - Used: @c bkpinfo->isodir
535 * - Used: @c bkpinfo->manual_cd_tray
536 * - Used: @c bkpinfo->make_cd_use_lilo
537 * - Used: @c bkpinfo->media_device
538 * - Used: @c bkpinfo->nfs_mount
539 * - Used: @c bkpinfo->nonbootable_backup
540 * - Used: @c bkpinfo->scratchdir
541 * - Used: @c bkpinfo->tmpdir
542 * - Used: @c bkpinfo->use_lzo
543 * - Modified: @c bkpinfo->call_before_iso
544 * - Modified: @c bkpinfo->call_make_iso
545 * - Modified: @c bkpinfo->optimal_set_size
546 * - Modified: @c bkpinfo->zip_exe
547 * - Modified: @c bkpinfo->zip_suffix
548 *
549 * @return number of errors, or 0 for success.
550 * @note Also creates directories that are specified in the @c bkpinfo structure but
551 * do not exist.
552 */
553int post_param_configuration(struct s_bkpinfo *bkpinfo)
554{
555    char *extra_cdrom_params;
556    char *mondo_mkisofs_sz;
557    char *command;
558    char *mtpt;
559    char *hostname, *ip_address;
560    int retval = 0;
561    long avm = 0;
562    char *colon;
563    char *cdr_exe;
564    char *tmp;
565    char call_before_iso_user[MAX_STR_LEN] = "\0";
566    int rdsiz_MB;
567    char *iso_dev;
568    char *iso_mnt;
569    char *iso_tmp;
570    char *iso_path;
571
572    assert(bkpinfo != NULL);
573    malloc_string(extra_cdrom_params);
574    malloc_string(mondo_mkisofs_sz);
575    malloc_string(command);
576    malloc_string(mtpt);
577    malloc_string(hostname);
578    malloc_string(ip_address);
579    malloc_string(cdr_exe);
580    malloc_string(tmp);
581    malloc_string(iso_dev);
582    malloc_string(iso_mnt);
583    malloc_string(iso_tmp);
584    malloc_string(iso_path);
585    bkpinfo->optimal_set_size =
586        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
587        1024;
588
589    log_msg(1, "Foo");
590    if (bkpinfo->backup_media_type == tape) {
591        log_msg(1, "Bar");
592        sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
593        log_msg(1, "tmp = '%s'", tmp);
594        if (run_program_and_log_output(tmp, 3)) {
595            fatal_error
596                ("Unable to open tape device. If you haven't specified it with -d, do so. If you already have, check your parameter. I think it's wrong.");
597        }
598    }
599    make_hole_for_dir(bkpinfo->scratchdir);
600    make_hole_for_dir(bkpinfo->tmpdir);
601    if (bkpinfo->backup_media_type == iso)
602        make_hole_for_dir(bkpinfo->isodir);
603
604    run_program_and_log_output("uname -a", 5);
605    run_program_and_log_output("cat /etc/*-release", 5);
606    run_program_and_log_output("cat /etc/*issue*", 5);
607    sprintf(g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
608    sprintf(command, "mkdir -p %s", g_tmpfs_mountpt);
609    paranoid_system(command);
610    rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
611#ifdef __FreeBSD__
612    strcpy(tmp,
613           call_program_and_get_last_line_of_output
614           ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
615    avm += atol(tmp);
616    strcpy(tmp,
617           call_program_and_get_last_line_of_output
618           ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
619    avm += atol(tmp);
620    sprintf(command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
621            g_tmpfs_mountpt);
622#else
623    strcpy(tmp,
624           call_program_and_get_last_line_of_output
625           ("free | grep ':' | tr -s ' ' '\t' | cut -f2 | head -n1"));
626    avm += atol(tmp);
627    sprintf(command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
628            g_tmpfs_mountpt, rdsiz_MB, 'm');
629    run_program_and_log_output("cat /proc/cpuinfo", 5);
630    run_program_and_log_output
631        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
632         5);
633#endif
634    if (avm / 1024 > rdsiz_MB * 3) {
635        if (run_program_and_log_output(command, 5)) {
636            g_tmpfs_mountpt[0] = '\0';
637            log_it("Failed to mount tmpfs");
638        } else {
639            log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
640        }
641    } else {
642        g_tmpfs_mountpt[0] = '\0';
643        log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
644    }
645
646    if (bkpinfo->use_lzo) {
647        strcpy(bkpinfo->zip_exe, "lzop");
648        strcpy(bkpinfo->zip_suffix, "lzo");
649    } else if (bkpinfo->use_gzip) {
650        strcpy(bkpinfo->zip_exe, "gzip");
651        strcpy(bkpinfo->zip_suffix, "gz");
652    } else if (bkpinfo->compression_level != 0) {
653        strcpy(bkpinfo->zip_exe, "bzip2");
654        strcpy(bkpinfo->zip_suffix, "bz2");
655    } else {
656        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
657    }
658
659// DVD
660
661    if (bkpinfo->backup_media_type == dvd) {
662        extra_cdrom_params[0] = '\0';
663        mondo_mkisofs_sz[0] = '\0';
664        if (find_home_of_exe("growisofs")) {
665            strcpy(cdr_exe, "growisofs");
666        }                       // unlikely to be used
667        else {
668            fatal_error("Please install growisofs.");
669        }
670        if (bkpinfo->nonbootable_backup) {
671            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
672        } else if
673#ifdef __FreeBSD__
674            (TRUE)
675#else
676            (bkpinfo->make_cd_use_lilo)
677#endif
678#ifdef __IA64__
679    {
680        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
681    }
682#else
683    {
684        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
685    }
686#endif
687        else
688        {
689            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
690        }
691        if (bkpinfo->manual_cd_tray) {
692            fatal_error("Manual CD tray + DVD not supported yet.");
693            // -m isn't supported by growisofs, BTW...
694        } else {
695            sprintf(bkpinfo->call_make_iso,
696                    "%s %s -Z %s . 2>> _ERR_",
697                    mondo_mkisofs_sz,
698                    extra_cdrom_params, bkpinfo->media_device);
699        }
700        if (getenv ("SUDO_COMMAND")) {
701            sprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
702            if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
703                popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
704                fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
705            }       
706        }
707        log_msg(2, "call_make_iso (DVD res) is ... %s",
708                bkpinfo->call_make_iso);
709    }                           // end of DVD code
710
711// CD-R or CD-RW
712    if (bkpinfo->backup_media_type == cdrw
713        || bkpinfo->backup_media_type == cdr) {
714        extra_cdrom_params[0] = '\0';
715        if (!bkpinfo->manual_cd_tray) {
716            strcat(extra_cdrom_params, "-waiti ");
717        }
718        if (bkpinfo->backup_media_type == cdrw) {
719            strcat(extra_cdrom_params, "blank=fast ");
720        }
721        if (find_home_of_exe("cdrecord")) {
722            strcpy(cdr_exe, "cdrecord");
723        } else if (find_home_of_exe("dvdrecord")) {
724            strcpy(cdr_exe, "dvdrecord");
725        } else {
726            fatal_error("Please install either cdrecord or dvdrecord.");
727        }
728        if (bkpinfo->nonbootable_backup) {
729            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
730        } else if
731#ifdef __FreeBSD__
732            (TRUE)
733#else
734            (bkpinfo->make_cd_use_lilo)
735#endif
736#ifdef __IA64__
737    {
738        strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
739    }
740#else
741    {
742        strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
743    }
744#endif
745        else
746        {
747            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
748        }
749        if (bkpinfo->manual_cd_tray) {
750            if (bkpinfo->call_before_iso[0] == '\0') {
751            sprintf(bkpinfo->call_before_iso,
752                        "%s -o %s/temporary.iso . 2>> _ERR_",
753                        mondo_mkisofs_sz, bkpinfo->tmpdir);
754                } else {
755                strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
756                sprintf (bkpinfo->call_before_iso,
757                                    "( %s -o %s/temporary.iso . 2>> _ERR_ ; %s )",
758                        mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
759            }
760            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
761            sprintf(bkpinfo->call_make_iso,
762                    "%s %s -v %s fs=4m dev=%s speed=%d %s/temporary.iso",
763                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
764                    extra_cdrom_params, bkpinfo->media_device,
765                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
766        } else {
767            sprintf(bkpinfo->call_make_iso,
768                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
769                    mondo_mkisofs_sz, cdr_exe,
770                    (bkpinfo->please_dont_eject) ? " " : "-eject",
771                    extra_cdrom_params, bkpinfo->media_device,
772                    bkpinfo->cdrw_speed);
773        }
774    }                           // end of CD code
775
776    /*
777       if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
778       {
779       sprintf (tmp,
780       "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
781       bkpinfo->media_device, bkpinfo->internal_tape_block_size);
782       if (system(tmp))
783       {
784       retval++;
785       fprintf (stderr,
786       "Cannot write to tape device. Is the tape set read-only?\n");
787       }
788       } // end of tape code
789     */
790
791
792    if (bkpinfo->backup_media_type == iso) {
793
794/* Patch by Conor Daly <conor.daly@met.ie>
795 * 23-june-2004
796 * Break up isodir into iso_mnt and iso_path
797 * These will be used along with iso-dev at restore time
798 * to locate the ISOs where ever they're mounted
799 */
800
801        log_it("isodir = %s", bkpinfo->isodir);
802        sprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1",
803                bkpinfo->isodir);
804        log_it("command = %s", command);
805        log_it("res of it = %s",
806               call_program_and_get_last_line_of_output(command));
807        sprintf(iso_dev, "%s",
808                call_program_and_get_last_line_of_output(command));
809        sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
810        write_one_liner_data_file(tmp,
811                                  call_program_and_get_last_line_of_output
812                                  (command));
813
814        sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
815                iso_dev);
816        log_it("command = %s", command);
817        log_it("res of it = %s",
818               call_program_and_get_last_line_of_output(command));
819        sprintf(iso_mnt, "%s",
820                call_program_and_get_last_line_of_output(command));
821        sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
822        write_one_liner_data_file(tmp,
823                                  call_program_and_get_last_line_of_output
824                                  (command));
825        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
826        sprintf(iso_tmp, "%s", bkpinfo->isodir);
827        if (strlen(iso_tmp) < strlen(iso_mnt)) {
828            iso_path[0] = '\0';
829        } else {
830            sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
831        }
832        sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
833        write_one_liner_data_file(tmp, iso_path);
834        log_it("isodir: %s", iso_path);
835        sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
836        write_one_liner_data_file(tmp, bkpinfo->prefix);
837        log_it("iso-prefix: %s",  bkpinfo->prefix);
838
839/* End patch */
840    }                           // end of iso code
841
842    if (bkpinfo->backup_media_type == nfs) {
843        strcpy(hostname, bkpinfo->nfs_mount);
844        colon = strchr(hostname, ':');
845        if (!colon) {
846            log_it("nfs mount doesn't have a colon in it");
847            retval++;
848        } else {
849            struct hostent *hent;
850
851            *colon = '\0';
852            hent = gethostbyname(hostname);
853            if (!hent) {
854                log_it("Can't resolve NFS mount (%s): %s", hostname,
855                       hstrerror(h_errno));
856                retval++;
857            } else {
858                strcpy(ip_address, inet_ntoa
859                       ((struct in_addr)
860                        *((struct in_addr *) hent->h_addr)));
861                strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
862                strcpy(bkpinfo->nfs_mount, ip_address);
863            }
864        }
865        store_nfs_config(bkpinfo);
866    }
867
868    log_it("Finished processing incoming params");
869    if (retval) {
870        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
871    }
872    sprintf(tmp, "%s", MONDO_TMPISOS);  /* added #define 22 apr 2002 */
873    if (does_file_exist(tmp)) {
874        unlink(tmp);
875    }
876    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
877        log_it("tmpdir or scratchdir are blank/missing");
878        retval++;
879    }
880    if (bkpinfo->include_paths[0] == '\0') {
881        //      fatal_error ("Why no backup path?");
882        strcpy(bkpinfo->include_paths, "/");
883    }
884    chmod(bkpinfo->scratchdir, 0700);
885    chmod(bkpinfo->tmpdir, 0700);
886    g_backup_media_type = bkpinfo->backup_media_type;
887    paranoid_free(mtpt);
888    paranoid_free(extra_cdrom_params);
889    paranoid_free(mondo_mkisofs_sz);
890    paranoid_free(command);
891    paranoid_free(hostname);
892    paranoid_free(ip_address);
893    paranoid_free(cdr_exe);
894    paranoid_free(tmp);
895    paranoid_free(iso_dev);
896    paranoid_free(iso_mnt);
897    paranoid_free(iso_tmp);
898    paranoid_free(iso_path);
899    return (retval);
900}
901
902
903
904/**
905 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
906 * Seeds the random-number generator, loads important modules, checks the sanity
907 * of the user's Linux distribution, and deletes logfile.
908 * @param bkpinfo The backup information structure. Will be initialized.
909 * @return number of errors (0 for success)
910 */
911int pre_param_configuration(struct s_bkpinfo *bkpinfo)
912{
913    int res = 0;
914
915    make_hole_for_dir(MNT_CDROM);
916    assert(bkpinfo != NULL);
917    srandom((unsigned long) (time(NULL)));
918    insmod_crucial_modules();
919    reset_bkpinfo(bkpinfo);     // also sets defaults ('/'=backup path, 3=compression level)
920    if (bkpinfo->disaster_recovery) {
921        if (!does_nonMS_partition_exist()) {
922            fatal_error
923                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
924        }
925    }
926
927    unlink(MONDO_TRACEFILE);
928    run_program_and_log_output("rm -Rf /tmp/changed.files*", FALSE);
929    if (find_and_store_mondoarchives_home(g_mondo_home)) {
930        fprintf(stderr,
931                "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");
932        res++;
933        return (res);
934    }
935    res += some_basic_system_sanity_checks();
936    if (res) {
937        log_it("Your distribution did not pass Mondo's sanity test.");
938    }
939    g_current_media_number = 1;
940    bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
941    return (res);
942}
943
944
945
946
947/**
948 * Reset all fields of the backup information structure to a sensible default.
949 * @param bkpinfo The @c bkpinfo to reset.
950 */
951void reset_bkpinfo(struct s_bkpinfo *bkpinfo)
952{
953    int i;
954
955    log_msg(1, "Hi");
956    assert(bkpinfo != NULL);
957    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
958    bkpinfo->manual_cd_tray = FALSE;
959    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
960    bkpinfo->media_device[0] = '\0';
961    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
962        bkpinfo->media_size[i] = -1;
963    }
964    bkpinfo->boot_loader = '\0';
965    bkpinfo->boot_device[0] = '\0';
966    bkpinfo->zip_exe[0] = '\0';
967    bkpinfo->zip_suffix[0] = '\0';
968    bkpinfo->restore_path[0] = '\0';
969    bkpinfo->use_lzo = FALSE;
970    bkpinfo->use_gzip = FALSE;
971    bkpinfo->do_not_compress_these[0] = '\0';
972    bkpinfo->verify_data = FALSE;
973    bkpinfo->backup_data = FALSE;
974    bkpinfo->restore_data = FALSE;
975    bkpinfo->disaster_recovery =
976        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
977    if (bkpinfo->disaster_recovery) {
978        strcpy(bkpinfo->isodir, "/");
979    } else {
980        strcpy(bkpinfo->isodir, "/root/images/mondo");
981    }
982    strcpy(bkpinfo->prefix, STD_PREFIX);
983
984    bkpinfo->scratchdir[0] = '\0';
985    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
986    sprintf(bkpinfo->tmpdir, "/tmp/tmpfs/mondo.tmp.%d", (int) (random() % 32768));  // for mondorestore
987    bkpinfo->optimal_set_size = 0;
988    bkpinfo->backup_media_type = none;
989    strcpy(bkpinfo->include_paths, "/");
990    bkpinfo->exclude_paths[0] = '\0';
991    bkpinfo->call_before_iso[0] = '\0';
992    bkpinfo->call_make_iso[0] = '\0';
993    bkpinfo->call_burn_iso[0] = '\0';
994    bkpinfo->call_after_iso[0] = '\0';
995    bkpinfo->image_devs[0] = '\0';
996    bkpinfo->postnuke_tarball[0] = '\0';
997    bkpinfo->kernel_path[0] = '\0';
998    bkpinfo->nfs_mount[0] = '\0';
999    bkpinfo->nfs_remote_dir[0] = '\0';
1000    bkpinfo->wipe_media_first = FALSE;
1001    bkpinfo->differential = FALSE;
1002    bkpinfo->cdrw_speed = 0;
1003// patch by Herman Kuster 
1004    bkpinfo->differential = 0;
1005// patch end
1006    bkpinfo->compression_level = 3;
1007}
1008
1009
1010
1011
1012/**
1013 * Get the remaining free space (in MB) on @p partition.
1014 * @param partition The partition to check free space on (either a device or a mountpoint).
1015 * @return The free space on @p partition, in MB.
1016 */
1017long free_space_on_given_partition(char *partition)
1018{
1019    char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
1020    long res;
1021
1022    assert_string_is_neither_NULL_nor_zerolength(partition);
1023
1024    sprintf(command, "df -m -P %s &> /dev/null", partition);
1025    if (system(command)) {
1026        return (-1);
1027    }                           // partition does not exist
1028    sprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
1029            partition);
1030    strcpy(out_sz, call_program_and_get_last_line_of_output(command));
1031    if (strlen(out_sz) == 0) {
1032        return (-1);
1033    }                           // error within df, probably
1034    res = atol(out_sz);
1035    return (res);
1036}
1037
1038
1039
1040/**
1041 * Check the user's system for sanity. Checks performed:
1042 * - make sure user has enough RAM (32mb required, 64mb recommended)
1043 * - make sure user has enough free space in @c /
1044 * - check kernel for ramdisk support
1045 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
1046 * - make sure CD-ROM is unmounted
1047 * - make sure /etc/modules.conf exists
1048 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
1049 *
1050 * @return number of problems with the user's setup (0 for success)
1051 */
1052int some_basic_system_sanity_checks()
1053{
1054
1055    /*@ buffers ************ */
1056    char tmp[MAX_STR_LEN];
1057    //  char command[MAX_STR_LEN];
1058
1059    /*@ int's *************** */
1060    int retval = 0;
1061    long Lres;
1062
1063
1064    mvaddstr_and_log_it(g_currentY, 0,
1065                        "Checking sanity of your Linux distribution");
1066#ifndef __FreeBSD__
1067    if (system("which mkfs.vfat &> /dev/null")
1068        && !system("which mkfs.msdos &> /dev/null")) {
1069        log_it
1070            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
1071        run_program_and_log_output
1072            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
1073    }
1074    strcpy(tmp,
1075           call_program_and_get_last_line_of_output
1076           ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
1077    if (atol(tmp) < 35000) {
1078        retval++;
1079        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
1080    }
1081    if (atol(tmp) < 66000) {
1082        log_to_screen
1083            ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
1084    }
1085#endif
1086
1087    if ((Lres = free_space_on_given_partition("/root")) == -1) {
1088        Lres = free_space_on_given_partition("/");
1089    }
1090    log_it("Free space on given partition = %ld MB", Lres);
1091
1092    if (Lres < 50) {
1093        run_program_and_log_output
1094            ("rm -Rf /root/images/mindi; mkdir -p /home/root/images/mindi; mkdir -p /root/images; ln -sf /home/root/images/mindi /root/images/mindi",
1095             3);
1096        //      fatal_error("Your / (or /root) partition has <50MB free. Please adjust your partition table to something saner.");
1097    }
1098
1099    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
1100        retval++;
1101        log_to_screen
1102            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
1103        fatal_error
1104            ("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. :)");
1105    }
1106#ifndef __FreeBSD__
1107    if (run_program_and_log_output
1108        ("grep ramdisk /proc/devices", FALSE)) {
1109        if (!ask_me_yes_or_no
1110            ("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?"))
1111        {
1112            //          retval++;
1113            log_to_screen
1114                ("It looks as if your kernel lacks ramdisk and initrd support.");
1115            log_to_screen
1116                ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
1117        }
1118    }
1119#endif
1120    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
1121    retval += whine_if_not_found("mkisofs");
1122    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
1123        retval += whine_if_not_found("cdrecord");
1124    }
1125    retval += whine_if_not_found("bzip2");
1126    retval += whine_if_not_found("gzip");
1127    retval += whine_if_not_found("awk");
1128    retval += whine_if_not_found("md5sum");
1129    retval += whine_if_not_found("strings");
1130    retval += whine_if_not_found("mindi");
1131    retval += whine_if_not_found("buffer");
1132
1133    // abort if Windows partition but no ms-sys and parted
1134    if (!run_program_and_log_output
1135        ("mount | grep -w vfat | grep -vE \"/dev/fd|nexdisk\"", 0)
1136        ||
1137        !run_program_and_log_output
1138        ("mount | grep -w dos | grep -vE \"/dev/fd|nexdisk\"", 0)) {
1139        log_to_screen("I think you have a Windows 9x partition.");
1140        retval += whine_if_not_found("parted");
1141#ifndef __IA64__
1142        /* IA64 always has one vfat partition for EFI even without Windows */
1143        // retval +=
1144        if (!find_home_of_exe("ms-sys")) {
1145            log_to_screen("Please install ms-sys just in case.");
1146        }
1147#endif
1148    }
1149
1150    if (!find_home_of_exe("cmp")) {
1151        if (!find_home_of_exe("true")) {
1152            whine_if_not_found("cmp");
1153        } else {
1154            log_to_screen
1155                ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1156            if (run_program_and_log_output
1157                ("cp -f `which true` /usr/bin/cmp", 0)) {
1158                fatal_error("Failed to create dummy 'cmp' file.");
1159            }
1160        }
1161    }
1162    run_program_and_log_output
1163        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1164    strcpy(tmp,
1165           call_program_and_get_last_line_of_output
1166           ("mount | grep -E \"cdr(om|w)\""));
1167    if (strcmp("", tmp)) {
1168        if (strstr(tmp, "autofs")) {
1169            log_to_screen
1170                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1171            log_to_screen
1172                ("if a CD actually is inserted. If a CD is inserted, please");
1173            log_to_screen("eject it. Thank you.");
1174            log_it
1175                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1176        } else
1177            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1178            retval++;
1179            fatal_error
1180                ("Your CD-ROM drive is mounted. Please unmount it.");
1181        }
1182    }
1183#ifndef __FreeBSD__
1184    if (!does_file_exist("/etc/modules.conf")) {
1185        if (does_file_exist("/etc/conf.modules")) {
1186            log_it("Linking /etc/modules.conf to /etc/conf.modules");
1187            run_program_and_log_output
1188                ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
1189        } else if (does_file_exist("/etc/modprobe.d")) {
1190            log_it
1191                ("Directory /etc/modprobe.d found. mindi will use its contents.");
1192        } else if (does_file_exist("/etc/modprobe.conf")) {
1193            log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
1194            run_program_and_log_output
1195                ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
1196        } else {
1197            retval++;
1198            log_to_screen
1199                ("Please find out what happened to /etc/modules.conf");
1200        }
1201    }
1202#endif
1203
1204    run_program_and_log_output("cat /etc/fstab", 5);
1205#ifdef __FreeBSD__
1206    run_program_and_log_output("vinum printconfig", 5);
1207#else
1208    run_program_and_log_output("cat /etc/raidtab", 5);
1209#endif
1210
1211    if (run_program_and_log_output("mindi -V", 1)) {
1212        log_to_screen("Could not ascertain mindi's version number.");
1213        log_to_screen
1214            ("You have not installed Mondo and/or Mindi properly.");
1215        log_to_screen("Please uninstall and reinstall them both.");
1216        fatal_error("Please reinstall Mondo and Mindi.");
1217    }
1218    if (run_program_and_log_output
1219        ("mindi --makemountlist /tmp/mountlist.txt.test", 5)) {
1220        log_to_screen
1221            ("Mindi --makemountlist /tmp/mountlist.txt.test failed for some reason.");
1222        log_to_screen
1223            ("Please run that command by hand and examine /var/log/mindi.log");
1224        log_to_screen
1225            ("for more information. Perhaps your /etc/fstab file is insane.");
1226        log_to_screen
1227            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1228        retval++;
1229    }
1230
1231    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1232        && !does_file_exist("/etc/raidtab")) {
1233        log_to_screen
1234            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1235        create_raidtab_from_mdstat("/etc/raidtab");
1236    }
1237
1238    if (retval) {
1239        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1240    } else {
1241        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1242    }
1243    return (retval);
1244}
1245
1246/**
1247 * Retrieve the line containing @p label from the config file.
1248 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1249 * @param label What to read from the file.
1250 * @param value Where to put it.
1251 * @return 0 for success, 1 for failure.
1252 */
1253int read_cfg_var(char *config_file, char *label, char *value)
1254{
1255    /*@ buffer ****************************************************** */
1256    char command[MAX_STR_LEN * 2];
1257    char tmp[MAX_STR_LEN];
1258
1259    /*@ end vars *************************************************** */
1260
1261    assert_string_is_neither_NULL_nor_zerolength(config_file);
1262    assert_string_is_neither_NULL_nor_zerolength(label);
1263    if (!does_file_exist(config_file)) {
1264        sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1265                config_file);
1266        log_to_screen(tmp);
1267        value[0] = '\0';
1268        return (1);
1269    } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1270        log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1271        return (0);
1272    } else {
1273        sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1274                label, config_file);
1275        strcpy(value, call_program_and_get_last_line_of_output(command));
1276        if (strlen(value) == 0) {
1277            return (1);
1278        } else {
1279            return (0);
1280        }
1281    }
1282}
1283
1284
1285
1286/**
1287 * Remount @c supermount if it was unmounted earlier.
1288 */
1289void remount_supermounts_if_necessary()
1290{
1291    if (g_remount_cdrom_at_end) {
1292        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1293    }
1294    if (g_remount_floppy_at_end) {
1295        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1296    }
1297}
1298
1299/**
1300 * Unmount @c supermount if it's mounted.
1301 */
1302void unmount_supermounts_if_necessary()
1303{
1304    if (run_program_and_log_output
1305        ("mount | grep cdrom | grep super", FALSE) == 0) {
1306        g_remount_cdrom_at_end = TRUE;
1307        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1308    }
1309    if (run_program_and_log_output
1310        ("mount | grep floppy | grep super", FALSE) == 0) {
1311        g_remount_floppy_at_end = TRUE;
1312        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1313    }
1314}
1315
1316/**
1317 * Whether we had to stop autofs (if so, restart it at end).
1318 */
1319bool g_autofs_stopped = FALSE;
1320
1321/**
1322 * Path to the autofs initscript ("" if none exists).
1323 */
1324char g_autofs_exe[MAX_STR_LEN];
1325
1326/**
1327 * Autofs initscript in Xandros Linux distribution.
1328 */
1329#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1330
1331/**
1332 * Autofs initscript in most Linux distributions.
1333 */
1334#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1335
1336/**
1337 * If autofs is mounted, stop it (restart at end).
1338 */
1339void stop_autofs_if_necessary()
1340{
1341    char tmp[MAX_STR_LEN];
1342
1343    g_autofs_exe[0] = '\0';
1344    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1345        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1346    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1347        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1348    }
1349
1350    if (!g_autofs_exe[0]) {
1351        log_msg(3, "No autofs detected.");
1352    } else {
1353        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1354// FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1355        sprintf(tmp, "%s stop", g_autofs_exe);
1356        if (run_program_and_log_output(tmp, 2)) {
1357            log_it("Failed to stop autofs - I assume it wasn't running");
1358        } else {
1359            g_autofs_stopped = TRUE;
1360            log_it("Stopped autofs OK");
1361        }
1362    }
1363}
1364
1365/**
1366 * If autofs was stopped earlier, restart it.
1367 */
1368void restart_autofs_if_necessary()
1369{
1370    char tmp[MAX_STR_LEN];
1371
1372    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1373        log_msg(3, "No autofs detected.");
1374        return;
1375    }
1376    sprintf(tmp, "%s start", g_autofs_exe);
1377    if (run_program_and_log_output(tmp, 2)) {
1378        log_it("Failed to start autofs");
1379    } else {
1380        g_autofs_stopped = FALSE;
1381        log_it("Started autofs OK");
1382    }
1383}
1384
1385
1386/**
1387 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1388 */
1389void mount_boot_if_necessary()
1390{
1391    char tmp[MAX_STR_LEN];
1392    char command[MAX_STR_LEN];
1393
1394    log_msg(1, "Started sub");
1395    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1396    g_boot_mountpt[0] = '\0';
1397    log_msg(4, "Done. Great. Seeting command to something");
1398    strcpy(command,
1399           "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[   ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1400    log_msg(4, "Cool. Command = '%s'", command);
1401    strcpy(tmp, call_program_and_get_last_line_of_output(command));
1402    log_msg(4, "tmp = '%s'", tmp);
1403    if (tmp[0]) {
1404        log_it("/boot is at %s according to /etc/fstab", tmp);
1405        if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1406            if (!run_program_and_log_output("mount /boot", 5)) {
1407                strcpy(g_boot_mountpt, "/boot");
1408                log_msg(1, "Mounted /boot");
1409            } else {
1410                log_it("...ignored cos it's a label or uuid :-)");
1411            }
1412        } else {
1413            sprintf(command, "mount | grep -E '^%s'", tmp);
1414            log_msg(3, "command = %s", command);
1415            if (run_program_and_log_output(command, 5)) {
1416                strcpy(g_boot_mountpt, tmp);
1417                sprintf(tmp,
1418                        "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1419                        g_boot_mountpt);
1420                log_it(tmp);
1421                sprintf(tmp, "mount %s", g_boot_mountpt);
1422                if (run_program_and_log_output(tmp, 5)) {
1423                    g_boot_mountpt[0] = '\0';
1424                    log_msg(1, "Plan B");
1425                    if (!run_program_and_log_output("mount /boot", 5)) {
1426                        strcpy(g_boot_mountpt, "/boot");
1427                        log_msg(1, "Plan B worked");
1428                    } else {
1429                        log_msg(1,
1430                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1431                    }
1432                }
1433            }
1434        }
1435    }
1436    log_msg(1, "Ended sub");
1437}
1438
1439
1440/**
1441 * If we mounted /boot earlier, unmount it.
1442 */
1443void unmount_boot_if_necessary()
1444{
1445    char tmp[MAX_STR_LEN];
1446
1447    log_msg(3, "starting");
1448    if (g_boot_mountpt[0]) {
1449        sprintf(tmp, "umount %s", g_boot_mountpt);
1450        if (run_program_and_log_output(tmp, 5)) {
1451            log_it("WARNING - unable to unmount /boot");
1452        }
1453    }
1454    log_msg(3, "leaving");
1455}
1456
1457
1458
1459/**
1460 * Write a line to a configuration file. Writes a line of the form,
1461 * @c label @c value.
1462 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1463 * @param label What to call this bit of data you're writing.
1464 * @param value The bit of data you're writing.
1465 * @return 0 for success, 1 for failure.
1466 */
1467int write_cfg_var(char *config_file, char *label, char *value)
1468{
1469    /*@ buffers ***************************************************** */
1470    char command[MAX_STR_LEN * 2];
1471    char tempfile[MAX_STR_LEN];
1472    char tmp[MAX_STR_LEN];
1473
1474
1475    /*@ end vars *************************************************** */
1476    assert_string_is_neither_NULL_nor_zerolength(config_file);
1477    assert_string_is_neither_NULL_nor_zerolength(label);
1478    assert(value != NULL);
1479    if (!does_file_exist(config_file)) {
1480        sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1481                config_file);
1482        log_to_screen(tmp);
1483        return (1);
1484    }
1485    strcpy(tempfile,
1486           call_program_and_get_last_line_of_output
1487           ("mktemp -q /tmp/mojo-jojo.blah.XXXXXX"));
1488    if (does_file_exist(config_file)) {
1489        sprintf(command, "grep -vE '^%s .*$' %s > %s",
1490                label, config_file, tempfile);
1491        paranoid_system(command);
1492    }
1493    sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1494    paranoid_system(command);
1495    sprintf(command, "mv -f %s %s", tempfile, config_file);
1496    paranoid_system(command);
1497    unlink(tempfile);
1498    return (0);
1499}
1500
1501
1502/**
1503 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1504 * information to the logfile.
1505 */
1506void standard_log_debug_msg(int debug_level, const char *szFile,
1507                            const char *szFunction, int nLine,
1508                            const char *fmt, ...)
1509{
1510    va_list args;
1511    int i;
1512    static int depth = 0;
1513    char *tmp;
1514    FILE *fout;
1515
1516    if (depth > 5) {
1517        depth--;
1518        return;
1519    }
1520    depth++;
1521
1522    malloc_string(tmp);
1523
1524    if (debug_level <= g_loglevel) {
1525        va_start(args, fmt);
1526        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1527            return;
1528        }                       // fatal_error("Failed to openout to logfile - sheesh..."); }
1529
1530        // add tabs to distinguish log levels
1531        if (debug_level > 0) {
1532            for (i = 1; i < debug_level; i++)
1533                fprintf(fout, "\t");
1534            if (getpid() == g_main_pid)
1535                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1536                        nLine);
1537            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1538                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1539                        nLine);
1540            else
1541                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1542                        szFunction, nLine);
1543        }
1544        vfprintf(fout, fmt, args);
1545
1546        // do not slow down the progran if standard debug level
1547        // must be enabled: if no flush, the log won't be up-to-date if there
1548        // is a segfault
1549        //if (g_dwDebugLevel != 1)
1550
1551        va_end(args);
1552        fprintf(fout, "\n");
1553        paranoid_fclose(fout);
1554    }
1555    depth--;
1556    paranoid_free(tmp);
1557}
1558
1559/**
1560 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1561 */
1562void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1563                       ...) = standard_log_debug_msg;
1564
1565
1566/**
1567 * If @p y, malloc @p x, else free @p x.
1568 * @bug This function seems orphaned. Please remove.
1569 */
1570#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1571
1572/**
1573 * Allocate or free important globals, depending on @p mal.
1574 * @param mal If TRUE, malloc; if FALSE, free.
1575 */
1576void do_libmondo_global_strings_thing(int mal)
1577{
1578    if (mal) {
1579        iamhere("Malloc'ing globals");
1580        malloc_string(g_boot_mountpt);
1581        malloc_string(g_mondo_home);
1582        malloc_string(g_tmpfs_mountpt);
1583        malloc_string(g_erase_tmpdir_and_scratchdir);
1584        malloc_string(g_serial_string);
1585        malloc_string(g_magicdev_command);
1586    } else {
1587        iamhere("Freeing globals");
1588        paranoid_free(g_boot_mountpt);
1589        paranoid_free(g_mondo_home);
1590        paranoid_free(g_tmpfs_mountpt);
1591        paranoid_free(g_erase_tmpdir_and_scratchdir);
1592        paranoid_free(g_serial_string);
1593        paranoid_free(g_magicdev_command);
1594    }
1595
1596    /*
1597       char**list_of_arrays[] = {
1598       &g_boot_mountpt,
1599       &g_mondo_home,
1600       &g_tmpfs_mountpt,
1601       &g_erase_tmpdir_and_scratchdir,
1602       &g_serial_string,
1603       &g_magicdev_command,
1604       NULL};
1605
1606       char**ppcurr;
1607       int i;
1608
1609       for(i=0;list_of_arrays[i];i++)
1610       {
1611       log_msg(5, "Allocating %d", i);
1612       ppcurr = list_of_arrays[i];
1613       if (mal)
1614       { *ppcurr = malloc(MAX_STR_LEN); }
1615       else
1616       {
1617       if (*ppcurr)
1618       {
1619       free(*ppcurr);
1620       }
1621       }
1622       }
1623       log_msg(5, "Returning");
1624     */
1625}
1626
1627/**
1628 * Allocate important globals.
1629 * @see do_libmondo_global_strings_thing
1630 */
1631void malloc_libmondo_global_strings(void)
1632{
1633    do_libmondo_global_strings_thing(1);
1634}
1635
1636/**
1637 * Free important globals.
1638 * @see do_libmondo_global_strings_thing
1639 */
1640void free_libmondo_global_strings(void)
1641{
1642    do_libmondo_global_strings_thing(0);
1643}
1644
1645
1646
1647/**
1648 * Stop @c magicdev if it's running.
1649 * The command used to start it is saved in @p g_magicdev_command.
1650 */
1651void stop_magicdev_if_necessary()
1652{
1653    strcpy(g_magicdev_command,
1654           call_program_and_get_last_line_of_output
1655           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1656    if (g_magicdev_command[0]) {
1657        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1658        paranoid_system("killall magicdev");
1659    }
1660}
1661
1662
1663/**
1664 * Restart magicdev if it was stopped.
1665 */
1666void restart_magicdev_if_necessary()
1667{
1668    char *tmp;
1669
1670    malloc_string(tmp);
1671    if (g_magicdev_command && g_magicdev_command[0]) {
1672        sprintf(tmp, "%s &", g_magicdev_command);
1673        paranoid_system(tmp);
1674    }
1675    paranoid_free(tmp);
1676}
1677
1678/* @} - end of utilityGroup */
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