source: MondoRescue/branches/2.2.5/mondo/src/common/libmondo-tools.c @ 1708

Last change on this file since 1708 was 1708, checked in by Bruno Cornec, 12 years ago
  • Supress g_erase_tmpdir_and_scratchdir
  • Improve some log messages for USB support
  • Try to improve install in mindi to avoid issues with isolinux.cfg not installed vene if in the pkg :-(
  • Property svn:keywords set to Id
File size: 45.4 KB
Line 
1/* libmondo-tools.c                                  misc tools
2   $Id: libmondo-tools.c 1708 2007-10-27 14:42:34Z bruno $
3.
4
5
606/28
7- abort if RAID partitions found but /etc/raidtab not found
8
906/25
10- don't insist on ms-sys; recommend it
11- don't fatal_error if can't open log file
12
1306/14
14- call mindi -V before calling mindi --makemountlist
15
1604/09
17- lots of malloc'd char*'s instead of char[]'s in post_param_config'n
18
1904/02
20- better sanity-checking, re: /etc/modules.conf
21
2202/15
23- abort if Windows dir but no ms-sys or parted
24
2502/08
26- missing ramdisk/initrd support is nonfatal now (but stupid)
27
2801/16
29- added g_kernel_version and get_kernel_version()
30
3101/08/2004
32- fixed /boot mounter thingy
33
3411/14/2003
35- if <50MB free in /root, softlink /root/images/mindi to
36  /home/root/images/mindi as a workaround
37
3810/23
39- streaming backups now generate 4MB sets; CDs, 8MB sets
40
4110/21
42- better at finding your /boot in order to mount it, if nec.
43- link /etc/modules.conf to /etc/conf.modules if former
44  is missing but latter is not
45- changed "/mnt/cdrom" to MNT_CDROM
46- changed "/mnt/floppy" to MNT_FLOPPY
47
4810/13
49- added stop_magicdev_if_necessary()
50- added restart_magicdev_if_necessary()
51
5210/02
53- don't eject if bkpinfo->please_dont_eject is TRUE
54
5509/28
56- fixed segfault in mount_..._necessary
57
5809/26
59- ask for cmp (or create workaround if possible)
60
6109/25
62- add DVD support
63
6409/24
65- don't overwrite existing media-dev value in bkpinfo IF it's
66  a tape device AND it's already populated by /dev/{something}
67  ...This helps w/ weird tape drives
68
6909/23
70- malloc/free global strings in new subroutines - malloc_libmondo_global_strings()
71  and free_libmondo_global_strings() - which are in libmondo-tools.c
72
7309/18
74- added stop_autofs_if_necessary() and restart_autofs_if_necessary()
75
7609/13
77- added log_debug_msg()
78- turned log_it() into a macro
79
8009/10
81- reduced PPCFG_RAMDISK to 150m (was 200m)
82- max set size is now 8MB (was 6)
83- added 'buffer' to requisite tools
84
8508/29
86- typical set size is now 5MB
87   
8807/22
89- increased PPCFG* to 200m
90
9105/07
92- changed grep -m1 to grep | head -n1 for Debian users
93- pre_param_...() also mkdir -p /mnt/cdrom, just in case
94
9505/05
96- cleaner logging of call to dd if=<tape> of=/dev/null
97- added Joshua Oreman's FreeBSD patches
98
9905/04
100- added Herman Kuster's multi-level bkp patch
101
10205/02
103- log_it() --- "Message repeated N times" (if it was)
104
10504/24
106- added lots of assert()'s and log_OS_error()'s
107- reset_bkpinfop() --- reset all media_size[] array
108- increased tmpfs ramdisk to size=100m
109
11004/22
111- post_param_configuration() --- store iso-dev and isodir
112
11304/05
114- re-enable tmpfs ramdisk/mountpt _but_ make sure size=80m
115- in post_param_configuration(), use cdrecord in preference
116  to dvdrecord now
117
11803/27
119- disabled tmpfs ramdisk/mountpt
120
12101/02/2003
122- bkpinfo->makefilelist = TRUE
123
12412/10/2002
125- added g_loglevel
126- fixed minor bug in clean_up_KDE_desktop_if_necessary()
127- log versions of newt, slang, ncurses
128- isodir defaults to / if disaster recovery
129
13011/28
131- unmount all CD devices at start
132- added clean_up_KDE_desktop_if_necessary()
133
13411/20
135- don't use lilo.conf.anaconda; abort instead
136- mount/unmount /boot partition for Gentoo 1.2 users
137
13811/13
139- call mindi --makemountlist as part of testing sanity of distro
140
14111/08
142- added a couple of chmod 700's (one for scratchdir, one for tmpdir)
143  to post_param_configuration()
144
14510/01 - 10/31
146- added checking of / and /root's free space to some_basic_sanity_checks()
147- moved some subroutines here from common/libmondo-archive
148
14909/01 - 09/30
150- don't write log_it()'s string to stdout, even if text mode
151- tell user the kernel is bad if it has no ramdisk support but allow
152  it if they want to use the failsafe kernel for booting
153- run_program_and_log_output() now takes boolean operator to specify
154  whether it will log its activities in the event of _success_
155- if mkfs.vfat not found but mkfs.msdos found then create a softlink
156  from the former to the latter
157
15808/01 - 08/31
159- if /etc/lilo.conf not found not /etc/lilo.conf.anaconda found
160  then create a softlink from the former to the latter, to work
161  around RH7.3's b0rken LILO support
162- handle unknown media size
163
16407/27
165- created
166*/
167
168
169/**
170 * @file
171 * Miscellaneous tools that didn't really fit anywhere else.
172 */
173
174#include "my-stuff.h"
175#include "mondostructures.h"
176#include "lib-common-externs.h"
177#include "libmondo-tools.h"
178#include "libmondo-gui-EXT.h"
179#include "libmondo-files-EXT.h"
180#include "libmondo-fork-EXT.h"
181#include "libmondo-raid-EXT.h"
182#include <sys/socket.h>
183#include <netdb.h>
184#include <stdlib.h>
185#include <netinet/in.h>
186#include <arpa/inet.h>
187#include <sys/utsname.h>
188
189/*@unused@*/
190//static char cvsid[] = "$Id: libmondo-tools.c 1708 2007-10-27 14:42:34Z bruno $";
191
192extern int g_tape_buffer_size_MB;
193extern char *g_serial_string;
194extern bool g_text_mode;
195extern int g_currentY;
196extern int g_current_media_number;
197extern char *MONDO_LOGFILE;
198
199/* Reference to global bkpinfo */
200extern struct s_bkpinfo *bkpinfo;
201
202/**
203 * @addtogroup globalGroup
204 * @{
205 */
206bool g_remount_cdrom_at_end,    ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
207 g_remount_floppy_at_end;       ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
208bool g_cd_recovery;             ///< TRUE if we're making an "autonuke" backup.
209double g_kernel_version;
210
211/**
212 * The place where /boot is mounted.
213 */
214char *g_boot_mountpt = NULL;
215
216/**
217 * The location of Mondo's home directory.
218 */
219char *g_mondo_home = NULL;
220
221/**
222 * The serial string (used to differentiate between backups) of the current backup.
223 */
224char *g_serial_string = NULL;
225
226/**
227 * The location where tmpfs is mounted, or "" if it's not mounted.
228 */
229char *g_tmpfs_mountpt = NULL;
230char *g_magicdev_command = NULL;
231
232/**
233 * The default maximum level to log messages at or below.
234 */
235int g_loglevel = DEFAULT_DEBUG_LEVEL;
236
237/* @} - end of globalGroup */
238
239
240extern pid_t g_buffer_pid;
241extern pid_t g_main_pid;
242
243extern t_bkptype g_backup_media_type;
244
245extern bool am_I_in_disaster_recovery_mode(void);
246
247
248/**
249 * @addtogroup utilityGroup
250 * @{
251 */
252/**
253 * Assertion handler. Prints a friendly message to the user,
254 * offering to ignore all, dump core, break to debugger,
255 * exit, or ignore. Intended to be used with an assert() macro.
256 *
257 * @param file The file in which the assertion triggered.
258 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
259 * @param line The line number of the assert() statement.
260 * @param exp The expression that failed (as a string).
261 */
262void _mondo_assert_fail(const char *file,
263                        const char *function, int line, const char *exp)
264{
265    static int ignoring_assertions = 0;
266    bool is_valid = TRUE;
267
268    log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
269           function);
270    if (ignoring_assertions) {
271        log_it("Well, the user doesn't care...");
272        return;
273    }
274#ifndef _XWIN
275    if (!g_text_mode)
276        newtSuspend();
277#endif
278    printf("ASSERTION FAILED: `%s'\n", exp);
279    printf("\tat %s:%d in %s\n\n", file, line, function);
280    printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
281    do {
282        is_valid = TRUE;
283        switch (toupper(getchar())) {
284        case 'A':               // ignore (A)ll
285            ignoring_assertions = 1;
286            break;
287        case 'B':               // a(B)ort
288            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
289            raise(SIGABRT);
290            break;              /* "can't get here" */
291        case 'D':               // (D)ebug, aka asm("int 3")
292#ifdef __IA32__
293            __asm__ __volatile__("int $3"); // break to debugger
294#endif
295            break;
296        case 'E':               // (E)xit
297            fatal_error("Failed assertion -- see above for details");
298            break;              /* "can't get here" */
299        case 'I':               // (I)gnore
300            break;
301            /* These next two work as follows:
302               the `default' catches the user's invalid choice and says so;
303               the '\n' catches the newline on the end and prints the prompt again.
304             */
305        case '\n':
306            printf
307                ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
308            break;
309        default:
310            is_valid = FALSE;
311            printf("Invalid choice.\n");
312            break;
313        }
314    } while (!is_valid);
315
316    if (ignoring_assertions) {
317        log_it("Ignoring ALL assertions from now on.");
318    } else {
319        log_it("Ignoring assertion: %s", exp);
320    }
321
322    getchar();                  // skip \n
323
324#ifndef _XWIN
325    if (!g_text_mode)
326        newtResume();
327#endif
328}
329
330/**
331 * Clean's up users' KDE desktops.
332 * @bug Details about this function are unknown.
333 */
334void clean_up_KDE_desktop_if_necessary(void)
335{
336    char *tmp;
337
338    malloc_string(tmp);
339    strcpy(tmp,
340           "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
341file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
342awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
343else { print $0;};}' $file.old  > $file ; fi ; done");
344    run_program_and_log_output(tmp, 5);
345    paranoid_free(tmp);
346}
347
348
349/**
350 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
351 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
352 *
353 * @param home_sz String to store the home directory ("" if it could not be found).
354 * @return 0 for success, nonzero for failure.
355 */
356int find_and_store_mondoarchives_home(char *home_sz)
357{
358    assert(home_sz != NULL);
359    strcpy(home_sz, MONDO_SHARE);
360    return (0);
361}
362
363
364char *get_architecture(void) {
365#ifdef __IA32__
366#   ifdef __X86_64__
367        return ("x86_64");
368#   else
369        return ("i386");
370#   endif
371#endif
372#ifdef __IA64__
373    return ("ia64");
374#endif
375    return ("unknown");
376}
377
378
379char *get_uname_m(void) {
380
381    struct utsname utsn;
382    char *tmp = NULL;
383
384    uname(&utsn);
385    asprintf(&tmp, utsn.machine);
386    return (tmp);
387}
388
389
390
391double get_kernel_version(void)
392{
393    char *p, tmp[200];
394    double d;
395#ifdef __FreeBSD__
396    // JOSH - FIXME :)
397    d = 5.2;                    // :-)
398#else
399    strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
400    p = strchr(tmp, '.');
401    if (p) {
402        p = strchr(++p, '.');
403        if (p) {
404            while (*p) {
405                *p = *(p + 1);
406                p++;
407            }
408        }
409    }
410//  log_msg(1, "tmp = '%s'", tmp);
411    d = atof(tmp);
412#endif
413    log_msg(1, "g_kernel_version = %f", d);
414    return (d);
415}
416
417
418
419
420
421/**
422 * Get the current time.
423 * @return number of seconds since the epoch.
424 */
425long get_time()
426{
427    return (long) time((void *) 0);
428}
429
430
431
432
433
434
435
436/**
437 * Initialize a RAID volume structure, setting fields to zero. The
438 * actual hard drive is unaffected.
439 *
440 * @param raidrec The RAID volume structure to initialize.
441 * @note This function is system dependent.
442 */
443#ifdef __FreeBSD__
444void initialize_raidrec(struct vinum_volume *raidrec)
445{
446    int i, j;
447    raidrec->volname[0] = '\0';
448    raidrec->plexes = 0;
449    for (i = 0; i < 9; ++i) {
450        raidrec->plex[i].raidlevel = -1;
451        raidrec->plex[i].stripesize = 0;
452        raidrec->plex[i].subdisks = 0;
453        for (j = 0; j < 9; ++j) {
454            strcpy(raidrec->plex[i].sd[j].which_device, "");
455        }
456    }
457}
458#else
459void initialize_raidrec(struct raid_device_record *raidrec)
460{
461    assert(raidrec != NULL);
462    raidrec->raid_device[0] = '\0';
463    raidrec->raid_level = -9;
464    raidrec->persistent_superblock = 1;
465    raidrec->chunk_size = 64;
466    raidrec->parity = -1;
467    raidrec->data_disks.entries = 0;
468    raidrec->spare_disks.entries = 0;
469    raidrec->parity_disks.entries = 0;
470    raidrec->failed_disks.entries = 0;
471    raidrec->additional_vars.entries = 0;
472}
473#endif
474
475
476
477
478/**
479 * Insert modules that Mondo requires.
480 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
481 * @c msdosfs and @c ext2fs for FreeBSD.
482 */
483void insmod_crucial_modules(void)
484{
485#ifdef __FreeBSD__
486    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
487    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
488#else
489    system("modprobe -a msdos vfat loop &> /dev/null");
490#endif
491}
492
493
494/**
495 * Log a trace message to the trace file.
496 * @bug This function seems orphaned. Please remove.
497 */
498void log_trace(char *o)
499{
500    /*@ pointers **************************************************** */
501    FILE *fout;
502
503    /*@ buffers ***************************************************** */
504    char output[MAX_STR_LEN];
505
506    /*@ int    ****************************************************** */
507    int i;
508
509    /*@ end vars *************************************************** */
510
511    if (o[0] == '\0') {
512        return;
513    }
514    strcpy(output, o);
515    i = (int) strlen(output);
516    if (i <= 0) {
517        return;
518    }
519    if (output[i - 1] < 32) {
520        output[i - 1] = '\0';
521    }
522    if (g_text_mode
523        /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
524        printf("%s\n", output);
525    }
526
527    fout = fopen(MONDO_TRACEFILE, "a");
528    if (fout) {
529        fprintf(fout, "%s\n", output);
530        paranoid_fclose(fout);
531    } else {
532        log_OS_error("Cannot write to tracefile");
533    }
534}
535
536
537
538
539
540/**
541 * Finish configuring the backup information structure. Call this function
542 * to set the parameters that depend on those that can be given on the command
543 * line.
544 *
545 * @param bkpinfo The backup information structure. Fields modified/used:
546 * - Used: @c bkpinfo->backup_data
547 * - Used: @c bkpinfo->backup_media_type
548 * - Used: @c bkpinfo->cdrw_speed
549 * - Used: @c bkpinfo->compression_level
550 * - Used: @c bkpinfo->include_paths
551 * - Used: @c bkpinfo->prefix
552 * - Used: @c bkpinfo->isodir
553 * - Used: @c bkpinfo->manual_cd_tray
554 * - Used: @c bkpinfo->make_cd_use_lilo
555 * - Used: @c bkpinfo->media_device
556 * - Used: @c bkpinfo->nfs_mount
557 * - Used: @c bkpinfo->nonbootable_backup
558 * - Used: @c bkpinfo->scratchdir
559 * - Used: @c bkpinfo->tmpdir
560 * - Used: @c bkpinfo->use_lzo
561 * - Modified: @c bkpinfo->call_before_iso
562 * - Modified: @c bkpinfo->call_make_iso
563 * - Modified: @c bkpinfo->optimal_set_size
564 * - Modified: @c bkpinfo->zip_exe
565 * - Modified: @c bkpinfo->zip_suffix
566 *
567 * @return number of errors, or 0 for success.
568 * @note Also creates directories that are specified in the @c bkpinfo structure but
569 * do not exist.
570 */
571int post_param_configuration()
572{
573    char *extra_cdrom_params;
574    char *mondo_mkisofs_sz;
575    char *command;
576    char *mtpt;
577    char *hostname, *ip_address;
578    int retval = 0;
579    long avm = 0;
580    char *colon;
581    char *cdr_exe;
582    char *tmp;
583    char call_before_iso_user[MAX_STR_LEN] = "\0";
584    int rdsiz_MB;
585    char *iso_dev;
586    char *iso_mnt;
587    char *iso_tmp;
588    char *iso_path;
589
590    assert(bkpinfo != NULL);
591    malloc_string(extra_cdrom_params);
592    malloc_string(mondo_mkisofs_sz);
593    malloc_string(command);
594    malloc_string(mtpt);
595    malloc_string(hostname);
596    malloc_string(ip_address);
597    malloc_string(cdr_exe);
598    malloc_string(tmp);
599    malloc_string(iso_dev);
600    malloc_string(iso_mnt);
601    malloc_string(iso_tmp);
602    malloc_string(iso_path);
603    bkpinfo->optimal_set_size =
604        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
605        1024;
606
607    log_msg(1, "Foo");
608    if (bkpinfo->backup_media_type == tape) {
609        log_msg(1, "Bar");
610        sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
611        log_msg(1, "tmp = '%s'", tmp);
612        if (run_program_and_log_output(tmp, 3)) {
613            fatal_error
614                ("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.");
615        }
616    }
617    make_hole_for_dir(bkpinfo->scratchdir);
618    if (bkpinfo->backup_media_type == iso)
619        make_hole_for_dir(bkpinfo->isodir);
620
621    run_program_and_log_output("uname -a", 5);
622    run_program_and_log_output("cat /etc/*-release", 5);
623    run_program_and_log_output("cat /etc/*issue*", 5);
624    sprintf(g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
625    sprintf(command, "mkdir -p %s", g_tmpfs_mountpt);
626    paranoid_system(command);
627    rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
628#ifdef __FreeBSD__
629    strcpy(tmp,
630           call_program_and_get_last_line_of_output
631           ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
632    avm += atol(tmp);
633    strcpy(tmp,
634           call_program_and_get_last_line_of_output
635           ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
636    avm += atol(tmp);
637    sprintf(command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
638            g_tmpfs_mountpt);
639#else
640    strcpy(tmp,
641           call_program_and_get_last_line_of_output
642           ("free | grep ':' | tr -s ' ' '\t' | cut -f2 | head -n1"));
643    avm += atol(tmp);
644    sprintf(command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
645            g_tmpfs_mountpt, rdsiz_MB, 'm');
646    run_program_and_log_output("cat /proc/cpuinfo", 5);
647    run_program_and_log_output
648        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
649         5);
650#endif
651    if (avm / 1024 > rdsiz_MB * 3) {
652        if (run_program_and_log_output(command, 5)) {
653            g_tmpfs_mountpt[0] = '\0';
654            log_it("Failed to mount tmpfs");
655        } else {
656            log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
657        }
658    } else {
659        g_tmpfs_mountpt[0] = '\0';
660        log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
661    }
662
663    if (bkpinfo->use_lzo) {
664        strcpy(bkpinfo->zip_exe, "lzop");
665        strcpy(bkpinfo->zip_suffix, "lzo");
666    } else if (bkpinfo->use_gzip) {
667        strcpy(bkpinfo->zip_exe, "gzip");
668        strcpy(bkpinfo->zip_suffix, "gz");
669    } else if (bkpinfo->compression_level != 0) {
670        strcpy(bkpinfo->zip_exe, "bzip2");
671        strcpy(bkpinfo->zip_suffix, "bz2");
672    } else {
673        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
674    }
675
676// DVD
677
678    if (bkpinfo->backup_media_type == dvd) {
679        extra_cdrom_params[0] = '\0';
680        mondo_mkisofs_sz[0] = '\0';
681        if (find_home_of_exe("growisofs")) {
682            strcpy(cdr_exe, "growisofs");
683        }                       // unlikely to be used
684        else {
685            fatal_error("Please install growisofs.");
686        }
687        if (bkpinfo->nonbootable_backup) {
688            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
689        } else if
690#ifdef __FreeBSD__
691            (TRUE)
692#else
693            (bkpinfo->make_cd_use_lilo)
694#endif
695#ifdef __IA64__
696    {
697        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
698    }
699#else
700    {
701        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
702    }
703#endif
704        else
705        {
706            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
707        }
708        if (bkpinfo->manual_cd_tray) {
709            fatal_error("Manual CD tray + DVD not supported yet.");
710            // -m isn't supported by growisofs, BTW...
711        } else {
712            sprintf(bkpinfo->call_make_iso,
713                    "%s %s -Z %s . 2>> _ERR_",
714                    mondo_mkisofs_sz,
715                    extra_cdrom_params, bkpinfo->media_device);
716        }
717        if (getenv ("SUDO_COMMAND")) {
718            sprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
719            if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
720                popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
721                fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
722            }       
723        }
724        log_msg(2, "call_make_iso (DVD res) is ... %s",
725                bkpinfo->call_make_iso);
726    }                           // end of DVD code
727
728// CD-R or CD-RW
729    if (bkpinfo->backup_media_type == cdrw
730        || bkpinfo->backup_media_type == cdr) {
731        extra_cdrom_params[0] = '\0';
732        if (!bkpinfo->manual_cd_tray) {
733            strcat(extra_cdrom_params, "-waiti ");
734        }
735        if (bkpinfo->backup_media_type == cdrw) {
736            strcat(extra_cdrom_params, "blank=fast ");
737        }
738        if (find_home_of_exe("cdrecord")) {
739            strcpy(cdr_exe, "cdrecord");
740        } else if (find_home_of_exe("dvdrecord")) {
741            strcpy(cdr_exe, "dvdrecord");
742        } else {
743            fatal_error("Please install either cdrecord or dvdrecord.");
744        }
745        if (bkpinfo->nonbootable_backup) {
746            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
747        } else if
748#ifdef __FreeBSD__
749            (TRUE)
750#else
751            (bkpinfo->make_cd_use_lilo)
752#endif
753#ifdef __IA64__
754    {
755        strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
756    }
757#else
758    {
759        strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
760    }
761#endif
762        else
763        {
764            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
765        }
766        if (bkpinfo->manual_cd_tray) {
767            if (bkpinfo->call_before_iso[0] == '\0') {
768            sprintf(bkpinfo->call_before_iso,
769                        "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_",
770                        mondo_mkisofs_sz, bkpinfo->tmpdir);
771                } else {
772                strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
773                sprintf (bkpinfo->call_before_iso,
774                                    "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )",
775                        mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
776            }
777            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
778            sprintf(bkpinfo->call_make_iso,
779                    "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS,
780                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
781                    extra_cdrom_params, bkpinfo->media_device,
782                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
783        } else {
784            sprintf(bkpinfo->call_make_iso,
785                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
786                    mondo_mkisofs_sz, cdr_exe,
787                    (bkpinfo->please_dont_eject) ? " " : "-eject",
788                    extra_cdrom_params, bkpinfo->media_device,
789                    bkpinfo->cdrw_speed);
790        }
791    }                           // end of CD code
792
793    /*
794       if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
795       {
796       sprintf (tmp,
797       "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
798       bkpinfo->media_device, bkpinfo->internal_tape_block_size);
799       if (system(tmp))
800       {
801       retval++;
802       fprintf (stderr,
803       "Cannot write to tape device. Is the tape set read-only?\n");
804       }
805       } // end of tape code
806     */
807
808
809    if (bkpinfo->backup_media_type == iso) {
810
811/* Patch by Conor Daly <conor.daly@met.ie>
812 * 23-june-2004
813 * Break up isodir into iso_mnt and iso_path
814 * These will be used along with iso-dev at restore time
815 * to locate the ISOs where ever they're mounted
816 */
817
818        log_it("isodir = %s", bkpinfo->isodir);
819        sprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1",
820                bkpinfo->isodir);
821        log_it("command = %s", command);
822        log_it("res of it = %s",
823               call_program_and_get_last_line_of_output(command));
824        sprintf(iso_dev, "%s",
825                call_program_and_get_last_line_of_output(command));
826        sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
827        write_one_liner_data_file(tmp,
828                                  call_program_and_get_last_line_of_output
829                                  (command));
830
831        sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
832                iso_dev);
833        log_it("command = %s", command);
834        log_it("res of it = %s",
835               call_program_and_get_last_line_of_output(command));
836        sprintf(iso_mnt, "%s",
837                call_program_and_get_last_line_of_output(command));
838        sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
839        write_one_liner_data_file(tmp,
840                                  call_program_and_get_last_line_of_output
841                                  (command));
842        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
843        sprintf(iso_tmp, "%s", bkpinfo->isodir);
844        if (strlen(iso_tmp) < strlen(iso_mnt)) {
845            iso_path[0] = '\0';
846        } else {
847            sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
848        }
849        sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
850        write_one_liner_data_file(tmp, iso_path);
851        log_it("isodir: %s", iso_path);
852        sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
853        write_one_liner_data_file(tmp, bkpinfo->prefix);
854        log_it("iso-prefix: %s",  bkpinfo->prefix);
855
856/* End patch */
857    }                           // end of iso code
858
859    if (bkpinfo->backup_media_type == nfs) {
860        strcpy(hostname, bkpinfo->nfs_mount);
861        colon = strchr(hostname, ':');
862        if (!colon) {
863            log_it("nfs mount doesn't have a colon in it");
864            retval++;
865        } else {
866            struct hostent *hent;
867
868            *colon = '\0';
869            hent = gethostbyname(hostname);
870            if (!hent) {
871                log_it("Can't resolve NFS mount (%s): %s", hostname,
872                       hstrerror(h_errno));
873                retval++;
874            } else {
875                strcpy(ip_address, inet_ntoa
876                       ((struct in_addr)
877                        *((struct in_addr *) hent->h_addr)));
878                strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
879                strcpy(bkpinfo->nfs_mount, ip_address);
880            }
881        }
882        store_nfs_config();
883    }
884
885    log_it("Finished processing incoming params");
886    if (retval) {
887        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
888    }
889    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
890        log_it("tmpdir or scratchdir are blank/missing");
891        retval++;
892    }
893    if (bkpinfo->include_paths[0] == '\0') {
894        //      fatal_error ("Why no backup path?");
895        strcpy(bkpinfo->include_paths, "/");
896    }
897    chmod(bkpinfo->scratchdir, 0700);
898    g_backup_media_type = bkpinfo->backup_media_type;
899    paranoid_free(mtpt);
900    paranoid_free(extra_cdrom_params);
901    paranoid_free(mondo_mkisofs_sz);
902    paranoid_free(command);
903    paranoid_free(hostname);
904    paranoid_free(ip_address);
905    paranoid_free(cdr_exe);
906    paranoid_free(tmp);
907    paranoid_free(iso_dev);
908    paranoid_free(iso_mnt);
909    paranoid_free(iso_tmp);
910    paranoid_free(iso_path);
911    return (retval);
912}
913
914
915
916/**
917 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
918 * Seeds the random-number generator, loads important modules, checks the sanity
919 * of the user's Linux distribution, and deletes logfile.
920 * @param bkpinfo The backup information structure. Will be initialized.
921 * @return number of errors (0 for success)
922 */
923int pre_param_configuration()
924{
925    int res = 0;
926    char *tmp = NULL;
927
928    make_hole_for_dir(MNT_CDROM);
929    assert(bkpinfo != NULL);
930    srandom((unsigned long) (time(NULL)));
931    insmod_crucial_modules();
932    if (bkpinfo->disaster_recovery) {
933        if (!does_nonMS_partition_exist()) {
934            fatal_error
935                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
936        }
937    }
938
939    unlink(MONDO_TRACEFILE);
940    asprintf(&tmp,"rm -Rf %s/changed.files*",MINDI_CACHE);
941    run_program_and_log_output(tmp, FALSE);
942    paranoid_free(tmp);
943    if (find_and_store_mondoarchives_home(g_mondo_home)) {
944        fprintf(stderr,
945                "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");
946        res++;
947        return (res);
948    }
949    res += some_basic_system_sanity_checks();
950    if (res) {
951        log_it("Your distribution did not pass Mondo's sanity test.");
952    }
953    g_current_media_number = 1;
954    bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
955    return (res);
956}
957
958void setup_tmpdir(char *path) {
959   
960    char *tmp = NULL;
961    char *p = NULL;
962
963    if (bkpinfo->tmpdir != NULL) {
964        /* purging a potential old tmpdir */
965        asprintf(&tmp,"rm -Rf %s",bkpinfo->tmpdir);
966        system(tmp);
967        paranoid_free(tmp);
968    }
969       
970    if (path != NULL) {
971        asprintf(&tmp, "%s/mondo.tmp.XXXXXX", path);
972    } else if (getenv("TMPDIR")) {
973        asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
974    } else if (getenv("TMP")) {
975        asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
976    } else {
977        asprintf(&tmp, "/tmp/mondo.tmp.XXXXXX");
978    }
979    p = mkdtemp(tmp);
980    if (p == NULL) {
981        log_it("Failed to create global tmp directory %s for Mondo.",tmp);
982        finish(-1);
983    }
984    strcpy(bkpinfo->tmpdir,p);
985    paranoid_free(tmp);
986
987    //sprintf(bkpinfo->tmpdir, "%s/tmpfs/mondo.tmp.%d", "/tmp", (int) (random() % 32768));  // for mondorestore
988}
989
990
991/**
992 * Reset all fields of the backup information structure to a sensible default.
993 * @param bkpinfo The @c bkpinfo to reset.
994 */
995void reset_bkpinfo()
996{
997    int i;
998
999    log_msg(1, "Hi");
1000    assert(bkpinfo != NULL);
1001    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
1002
1003    /* special case for tmpdir as used eveywhere after */
1004    setup_tmpdir(NULL);
1005
1006    bkpinfo->manual_cd_tray = FALSE;
1007    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
1008    bkpinfo->media_device[0] = '\0';
1009    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
1010        bkpinfo->media_size[i] = -1;
1011    }
1012    bkpinfo->boot_loader = '\0';
1013    bkpinfo->boot_device[0] = '\0';
1014    bkpinfo->zip_exe[0] = '\0';
1015    bkpinfo->zip_suffix[0] = '\0';
1016    bkpinfo->restore_path[0] = '\0';
1017    bkpinfo->use_lzo = FALSE;
1018    bkpinfo->use_gzip = FALSE;
1019    bkpinfo->do_not_compress_these[0] = '\0';
1020    bkpinfo->verify_data = FALSE;
1021    bkpinfo->backup_data = FALSE;
1022    bkpinfo->restore_data = FALSE;
1023    bkpinfo->disaster_recovery =
1024        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
1025    if (bkpinfo->disaster_recovery) {
1026        strcpy(bkpinfo->isodir, "/");
1027    } else {
1028        strcpy(bkpinfo->isodir, "/root/images/mondo");
1029    }
1030    strcpy(bkpinfo->prefix, STD_PREFIX);
1031
1032    bkpinfo->scratchdir[0] = '\0';
1033    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
1034    bkpinfo->optimal_set_size = 0;
1035    bkpinfo->backup_media_type = none;
1036    strcpy(bkpinfo->include_paths, "/");
1037    bkpinfo->exclude_paths[0] = '\0';
1038    bkpinfo->call_before_iso[0] = '\0';
1039    bkpinfo->call_make_iso[0] = '\0';
1040    bkpinfo->call_burn_iso[0] = '\0';
1041    bkpinfo->call_after_iso[0] = '\0';
1042    bkpinfo->image_devs[0] = '\0';
1043    bkpinfo->postnuke_tarball[0] = '\0';
1044    bkpinfo->kernel_path[0] = '\0';
1045    bkpinfo->nfs_mount[0] = '\0';
1046    bkpinfo->nfs_remote_dir[0] = '\0';
1047    bkpinfo->wipe_media_first = FALSE;
1048    bkpinfo->differential = FALSE;
1049    bkpinfo->cdrw_speed = 0;
1050// patch by Herman Kuster 
1051    bkpinfo->differential = 0;
1052// patch end
1053    bkpinfo->compression_level = 3;
1054}
1055
1056
1057
1058
1059/**
1060 * Get the remaining free space (in MB) on @p partition.
1061 * @param partition The partition to check free space on (either a device or a mountpoint).
1062 * @return The free space on @p partition, in MB.
1063 */
1064long free_space_on_given_partition(char *partition)
1065{
1066    char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
1067    long res;
1068
1069    assert_string_is_neither_NULL_nor_zerolength(partition);
1070
1071    sprintf(command, "df -m -P %s &> /dev/null", partition);
1072    if (system(command)) {
1073        return (-1);
1074    }                           // partition does not exist
1075    sprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
1076            partition);
1077    strcpy(out_sz, call_program_and_get_last_line_of_output(command));
1078    if (strlen(out_sz) == 0) {
1079        return (-1);
1080    }                           // error within df, probably
1081    res = atol(out_sz);
1082    return (res);
1083}
1084
1085
1086
1087/**
1088 * Check the user's system for sanity. Checks performed:
1089 * - make sure user has enough RAM (32mb required, 64mb recommended)
1090 * - make sure user has enough free space in @c /
1091 * - check kernel for ramdisk support
1092 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
1093 * - make sure CD-ROM is unmounted
1094 * - make sure /etc/modules.conf exists
1095 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
1096 *
1097 * @return number of problems with the user's setup (0 for success)
1098 */
1099int some_basic_system_sanity_checks()
1100{
1101
1102    /*@ buffers ************ */
1103    char tmp[MAX_STR_LEN];
1104    //  char command[MAX_STR_LEN];
1105
1106    /*@ int's *************** */
1107    int retval = 0;
1108    long Lres;
1109
1110
1111    mvaddstr_and_log_it(g_currentY, 0,
1112                        "Checking sanity of your Linux distribution");
1113#ifndef __FreeBSD__
1114    if (system("which mkfs.vfat &> /dev/null")
1115        && !system("which mkfs.msdos &> /dev/null")) {
1116        log_it
1117            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
1118        run_program_and_log_output
1119            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
1120    }
1121    strcpy(tmp,
1122           call_program_and_get_last_line_of_output
1123           ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
1124    if (atol(tmp) < 35000) {
1125        retval++;
1126        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
1127    }
1128    if (atol(tmp) < 66000) {
1129        log_to_screen
1130            ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
1131    }
1132#endif
1133
1134    Lres = free_space_on_given_partition(MINDI_CACHE);
1135    log_it("Free space on partition of %s = %ld MB", MINDI_CACHE, Lres);
1136
1137    if (Lres < 50) {
1138        sprintf(tmp, "The partition of %s has <50MB free. Please free up space or enlarge the partition or make %s a symbolic link.", MINDI_CACHE, MINDI_CACHE); 
1139        fatal_error(tmp);
1140    }
1141
1142    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
1143        retval++;
1144        log_to_screen
1145            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
1146        fatal_error
1147            ("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. :)");
1148    }
1149#ifndef __FreeBSD__
1150    if (run_program_and_log_output
1151        ("grep ramdisk /proc/devices", FALSE)) {
1152        if (!ask_me_yes_or_no
1153            ("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?"))
1154        {
1155            //          retval++;
1156            log_to_screen
1157                ("It looks as if your kernel lacks ramdisk and initrd support.");
1158            log_to_screen
1159                ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
1160        }
1161    }
1162#endif
1163    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
1164    retval += whine_if_not_found("mkisofs");
1165    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
1166        retval += whine_if_not_found("cdrecord");
1167    }
1168    retval += whine_if_not_found("bzip2");
1169    retval += whine_if_not_found("gzip");
1170    retval += whine_if_not_found("awk");
1171    retval += whine_if_not_found("md5sum");
1172    retval += whine_if_not_found("strings");
1173    retval += whine_if_not_found("mindi");
1174    retval += whine_if_not_found("buffer");
1175
1176    // abort if Windows partition but no ms-sys and parted
1177    if (!run_program_and_log_output
1178        ("mount | grep -w vfat | grep -vE \"/dev/fd|nexdisk\"", 0)
1179        ||
1180        !run_program_and_log_output
1181        ("mount | grep -w dos | grep -vE \"/dev/fd|nexdisk\"", 0)) {
1182        log_to_screen("I think you have a Windows 9x partition.");
1183        retval += whine_if_not_found("parted");
1184#ifndef __IA64__
1185        /* IA64 always has one vfat partition for EFI even without Windows */
1186        // retval +=
1187        if (!find_home_of_exe("ms-sys")) {
1188            log_to_screen("Please install ms-sys just in case.");
1189        }
1190#endif
1191    }
1192
1193    if (!find_home_of_exe("cmp")) {
1194        if (!find_home_of_exe("true")) {
1195            whine_if_not_found("cmp");
1196        } else {
1197            log_to_screen
1198                ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1199            if (run_program_and_log_output
1200                ("cp -f `which true` /usr/bin/cmp", 0)) {
1201                fatal_error("Failed to create dummy 'cmp' file.");
1202            }
1203        }
1204    }
1205    run_program_and_log_output
1206        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1207    strcpy(tmp,
1208           call_program_and_get_last_line_of_output
1209           ("mount | grep -E \"cdr(om|w)\""));
1210    if (strcmp("", tmp)) {
1211        if (strstr(tmp, "autofs")) {
1212            log_to_screen
1213                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1214            log_to_screen
1215                ("if a CD actually is inserted. If a CD is inserted, please");
1216            log_to_screen("eject it. Thank you.");
1217            log_it
1218                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1219        } else
1220            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1221            retval++;
1222            fatal_error
1223                ("Your CD-ROM drive is mounted. Please unmount it.");
1224        }
1225    }
1226#ifndef __FreeBSD__
1227    if (!does_file_exist("/etc/modules.conf")) {
1228        if (does_file_exist("/etc/conf.modules")) {
1229            log_it("Linking /etc/modules.conf to /etc/conf.modules");
1230            run_program_and_log_output
1231                ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
1232        } else if (does_file_exist("/etc/modprobe.d")) {
1233            log_it
1234                ("Directory /etc/modprobe.d found. mindi will use its contents.");
1235        } else if (does_file_exist("/etc/modprobe.conf")) {
1236            log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
1237            run_program_and_log_output
1238                ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
1239        } else {
1240            retval++;
1241            log_to_screen
1242                ("Please find out what happened to /etc/modules.conf");
1243        }
1244    }
1245#endif
1246
1247    run_program_and_log_output("cat /etc/fstab", 5);
1248#ifdef __FreeBSD__
1249    run_program_and_log_output("vinum printconfig", 5);
1250#else
1251    run_program_and_log_output("cat /etc/raidtab", 5);
1252#endif
1253
1254    if (run_program_and_log_output("mindi -V", 1)) {
1255        log_to_screen("Could not ascertain mindi's version number.");
1256        log_to_screen
1257            ("You have not installed Mondo and/or Mindi properly.");
1258        log_to_screen("Please uninstall and reinstall them both.");
1259        fatal_error("Please reinstall Mondo and Mindi.");
1260    }
1261    sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1262    if (run_program_and_log_output(tmp, 5)) {
1263        sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1264        log_to_screen(tmp);
1265        log_to_screen
1266            ("Please run that command by hand and examine /var/log/mindi.log");
1267        log_to_screen
1268            ("for more information. Perhaps your /etc/fstab file is insane.");
1269        log_to_screen
1270            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1271        retval++;
1272    }
1273
1274    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1275        && !does_file_exist("/etc/raidtab")) {
1276        log_to_screen
1277            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1278        create_raidtab_from_mdstat("/etc/raidtab");
1279    }
1280
1281    if (retval) {
1282        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1283    } else {
1284        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1285    }
1286    return (retval);
1287}
1288
1289/**
1290 * Retrieve the line containing @p label from the config file.
1291 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1292 * @param label What to read from the file.
1293 * @param value Where to put it.
1294 * @return 0 for success, 1 for failure.
1295 */
1296int read_cfg_var(char *config_file, char *label, char *value)
1297{
1298    /*@ buffer ****************************************************** */
1299    char command[MAX_STR_LEN * 2];
1300    char tmp[MAX_STR_LEN];
1301
1302    /*@ end vars *************************************************** */
1303
1304    assert_string_is_neither_NULL_nor_zerolength(config_file);
1305    assert_string_is_neither_NULL_nor_zerolength(label);
1306    if (!does_file_exist(config_file)) {
1307        sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1308                config_file);
1309        log_to_screen(tmp);
1310        value[0] = '\0';
1311        return (1);
1312    } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1313        log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1314        return (0);
1315    } else {
1316        sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1317                label, config_file);
1318        strcpy(value, call_program_and_get_last_line_of_output(command));
1319        if (strlen(value) == 0) {
1320            return (1);
1321        } else {
1322            return (0);
1323        }
1324    }
1325}
1326
1327
1328
1329/**
1330 * Remount @c supermount if it was unmounted earlier.
1331 */
1332void remount_supermounts_if_necessary()
1333{
1334    if (g_remount_cdrom_at_end) {
1335        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1336    }
1337    if (g_remount_floppy_at_end) {
1338        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1339    }
1340}
1341
1342/**
1343 * Unmount @c supermount if it's mounted.
1344 */
1345void unmount_supermounts_if_necessary()
1346{
1347    if (run_program_and_log_output
1348        ("mount | grep cdrom | grep super", FALSE) == 0) {
1349        g_remount_cdrom_at_end = TRUE;
1350        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1351    }
1352    if (run_program_and_log_output
1353        ("mount | grep floppy | grep super", FALSE) == 0) {
1354        g_remount_floppy_at_end = TRUE;
1355        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1356    }
1357}
1358
1359/**
1360 * Whether we had to stop autofs (if so, restart it at end).
1361 */
1362bool g_autofs_stopped = FALSE;
1363
1364/**
1365 * Path to the autofs initscript ("" if none exists).
1366 */
1367char g_autofs_exe[MAX_STR_LEN];
1368
1369/**
1370 * Autofs initscript in Xandros Linux distribution.
1371 */
1372#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1373
1374/**
1375 * Autofs initscript in most Linux distributions.
1376 */
1377#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1378
1379/**
1380 * If autofs is mounted, stop it (restart at end).
1381 */
1382void stop_autofs_if_necessary()
1383{
1384    char tmp[MAX_STR_LEN];
1385
1386    g_autofs_exe[0] = '\0';
1387    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1388        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1389    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1390        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1391    }
1392
1393    if (!g_autofs_exe[0]) {
1394        log_msg(3, "No autofs detected.");
1395    } else {
1396        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1397// FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1398        sprintf(tmp, "%s stop", g_autofs_exe);
1399        if (run_program_and_log_output(tmp, 2)) {
1400            log_it("Failed to stop autofs - I assume it wasn't running");
1401        } else {
1402            g_autofs_stopped = TRUE;
1403            log_it("Stopped autofs OK");
1404        }
1405    }
1406}
1407
1408/**
1409 * If autofs was stopped earlier, restart it.
1410 */
1411void restart_autofs_if_necessary()
1412{
1413    char tmp[MAX_STR_LEN];
1414
1415    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1416        log_msg(3, "No autofs detected.");
1417        return;
1418    }
1419    sprintf(tmp, "%s start", g_autofs_exe);
1420    if (run_program_and_log_output(tmp, 2)) {
1421        log_it("Failed to start autofs");
1422    } else {
1423        g_autofs_stopped = FALSE;
1424        log_it("Started autofs OK");
1425    }
1426}
1427
1428
1429/**
1430 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1431 */
1432void mount_boot_if_necessary()
1433{
1434    char tmp[MAX_STR_LEN];
1435    char command[MAX_STR_LEN];
1436
1437    log_msg(1, "Started sub");
1438    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1439    g_boot_mountpt[0] = '\0';
1440    log_msg(4, "Done. Great. Seeting command to something");
1441    strcpy(command,
1442           "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[   ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1443    log_msg(4, "Cool. Command = '%s'", command);
1444    strcpy(tmp, call_program_and_get_last_line_of_output(command));
1445    log_msg(4, "tmp = '%s'", tmp);
1446    if (tmp[0]) {
1447        log_it("/boot is at %s according to /etc/fstab", tmp);
1448        if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1449            if (!run_program_and_log_output("mount /boot", 5)) {
1450                strcpy(g_boot_mountpt, "/boot");
1451                log_msg(1, "Mounted /boot");
1452            } else {
1453                log_it("...ignored cos it's a label or uuid :-)");
1454            }
1455        } else {
1456            sprintf(command, "mount | grep -E '^%s'", tmp);
1457            log_msg(3, "command = %s", command);
1458            if (run_program_and_log_output(command, 5)) {
1459                strcpy(g_boot_mountpt, tmp);
1460                sprintf(tmp,
1461                        "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1462                        g_boot_mountpt);
1463                log_it(tmp);
1464                sprintf(tmp, "mount %s", g_boot_mountpt);
1465                if (run_program_and_log_output(tmp, 5)) {
1466                    g_boot_mountpt[0] = '\0';
1467                    log_msg(1, "Plan B");
1468                    if (!run_program_and_log_output("mount /boot", 5)) {
1469                        strcpy(g_boot_mountpt, "/boot");
1470                        log_msg(1, "Plan B worked");
1471                    } else {
1472                        log_msg(1,
1473                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1474                    }
1475                }
1476            }
1477        }
1478    }
1479    log_msg(1, "Ended sub");
1480}
1481
1482
1483/**
1484 * If we mounted /boot earlier, unmount it.
1485 */
1486void unmount_boot_if_necessary()
1487{
1488    char tmp[MAX_STR_LEN];
1489
1490    log_msg(3, "starting");
1491    if (g_boot_mountpt[0]) {
1492        sprintf(tmp, "umount %s", g_boot_mountpt);
1493        if (run_program_and_log_output(tmp, 5)) {
1494            log_it("WARNING - unable to unmount /boot");
1495        }
1496    }
1497    log_msg(3, "leaving");
1498}
1499
1500
1501
1502/**
1503 * Write a line to a configuration file. Writes a line of the form,
1504 * @c label @c value.
1505 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1506 * @param label What to call this bit of data you're writing.
1507 * @param value The bit of data you're writing.
1508 * @return 0 for success, 1 for failure.
1509 */
1510int write_cfg_var(char *config_file, char *label, char *value)
1511{
1512    /*@ buffers ***************************************************** */
1513    char command[MAX_STR_LEN * 2];
1514    char tempfile[MAX_STR_LEN];
1515    char tmp[MAX_STR_LEN];
1516
1517
1518    /*@ end vars *************************************************** */
1519    assert_string_is_neither_NULL_nor_zerolength(config_file);
1520    assert_string_is_neither_NULL_nor_zerolength(label);
1521    assert(value != NULL);
1522    if (!does_file_exist(config_file)) {
1523        sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1524                config_file);
1525        log_to_screen(tmp);
1526        return (1);
1527    }
1528    sprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1529    if (does_file_exist(config_file)) {
1530        sprintf(command, "grep -vE '^%s .*$' %s > %s",
1531                label, config_file, tempfile);
1532        paranoid_system(command);
1533    }
1534    sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1535    paranoid_system(command);
1536    sprintf(command, "mv -f %s %s", tempfile, config_file);
1537    paranoid_system(command);
1538    unlink(tempfile);
1539    return (0);
1540}
1541
1542
1543/**
1544 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1545 * information to the logfile.
1546 */
1547void standard_log_debug_msg(int debug_level, const char *szFile,
1548                            const char *szFunction, int nLine,
1549                            const char *fmt, ...)
1550{
1551    va_list args;
1552    int i;
1553    static int depth = 0;
1554    char *tmp;
1555    FILE *fout;
1556
1557    if (depth > 5) {
1558        depth--;
1559        return;
1560    }
1561    depth++;
1562
1563    malloc_string(tmp);
1564
1565    if (debug_level <= g_loglevel) {
1566        va_start(args, fmt);
1567        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1568            return;
1569        }                       // fatal_error("Failed to openout to logfile - sheesh..."); }
1570
1571        // add tabs to distinguish log levels
1572        if (debug_level > 0) {
1573            for (i = 1; i < debug_level; i++)
1574                fprintf(fout, "\t");
1575            if (getpid() == g_main_pid)
1576                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1577                        nLine);
1578            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1579                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1580                        nLine);
1581            else
1582                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1583                        szFunction, nLine);
1584        }
1585        vfprintf(fout, fmt, args);
1586
1587        // do not slow down the progran if standard debug level
1588        // must be enabled: if no flush, the log won't be up-to-date if there
1589        // is a segfault
1590        //if (g_dwDebugLevel != 1)
1591
1592        va_end(args);
1593        fprintf(fout, "\n");
1594        paranoid_fclose(fout);
1595    }
1596    depth--;
1597    paranoid_free(tmp);
1598}
1599
1600/**
1601 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1602 */
1603void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1604                       ...) = standard_log_debug_msg;
1605
1606
1607/**
1608 * If @p y, malloc @p x, else free @p x.
1609 * @bug This function seems orphaned. Please remove.
1610 */
1611#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1612
1613/**
1614 * Allocate or free important globals, depending on @p mal.
1615 * @param mal If TRUE, malloc; if FALSE, free.
1616 */
1617void do_libmondo_global_strings_thing(int mal)
1618{
1619    if (mal) {
1620        malloc_string(g_boot_mountpt);
1621        malloc_string(g_mondo_home);
1622        malloc_string(g_tmpfs_mountpt);
1623        malloc_string(g_serial_string);
1624        malloc_string(g_magicdev_command);
1625    } else {
1626        paranoid_free(g_boot_mountpt);
1627        paranoid_free(g_mondo_home);
1628        paranoid_free(g_tmpfs_mountpt);
1629        paranoid_free(g_serial_string);
1630        paranoid_free(g_magicdev_command);
1631    }
1632
1633    /*
1634       char**list_of_arrays[] = {
1635       &g_boot_mountpt,
1636       &g_mondo_home,
1637       &g_tmpfs_mountpt,
1638       &g_serial_string,
1639       &g_magicdev_command,
1640       NULL};
1641
1642       char**ppcurr;
1643       int i;
1644
1645       for(i=0;list_of_arrays[i];i++)
1646       {
1647       log_msg(5, "Allocating %d", i);
1648       ppcurr = list_of_arrays[i];
1649       if (mal)
1650       { *ppcurr = malloc(MAX_STR_LEN); }
1651       else
1652       {
1653       if (*ppcurr)
1654       {
1655       free(*ppcurr);
1656       }
1657       }
1658       }
1659       log_msg(5, "Returning");
1660     */
1661}
1662
1663/**
1664 * Allocate important globals.
1665 * @see do_libmondo_global_strings_thing
1666 */
1667void malloc_libmondo_global_strings(void)
1668{
1669    do_libmondo_global_strings_thing(1);
1670}
1671
1672/**
1673 * Free important globals.
1674 * @see do_libmondo_global_strings_thing
1675 */
1676void free_libmondo_global_strings(void)
1677{
1678    do_libmondo_global_strings_thing(0);
1679}
1680
1681
1682
1683/**
1684 * Stop @c magicdev if it's running.
1685 * The command used to start it is saved in @p g_magicdev_command.
1686 */
1687void stop_magicdev_if_necessary()
1688{
1689    strcpy(g_magicdev_command,
1690           call_program_and_get_last_line_of_output
1691           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1692    if (g_magicdev_command[0]) {
1693        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1694        paranoid_system("killall magicdev");
1695    }
1696}
1697
1698
1699/**
1700 * Restart magicdev if it was stopped.
1701 */
1702void restart_magicdev_if_necessary()
1703{
1704    char *tmp;
1705
1706    malloc_string(tmp);
1707    if (g_magicdev_command && g_magicdev_command[0]) {
1708        sprintf(tmp, "%s &", g_magicdev_command);
1709        paranoid_system(tmp);
1710    }
1711    paranoid_free(tmp);
1712}
1713
1714/* @} - end of utilityGroup */
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