source: trunk/mondo/src/common/libmondo-tools.c @ 1081

Last change on this file since 1081 was 1081, checked in by bruno, 13 years ago

merge -r1078:1080 $SVN_M/branches/stable

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1/* $Id: libmondo-tools.c 1081 2007-01-28 22:20:07Z bruno $
2misc tools
3*/
4
5/**
6 * @file
7 * Miscellaneous tools that didn't really fit anywhere else.
8 */
9
10#include "my-stuff.h"
11#include "mr_mem.h"
12#include "mondostructures.h"
13#include "libmondo-tools.h"
14#include "newt-specific-EXT.h"
15#include "libmondo-files-EXT.h"
16#include "libmondo-fork-EXT.h"
17#include "libmondo-raid-EXT.h"
18#include <sys/socket.h>
19#include <netdb.h>
20#include <netinet/in.h>
21#ifndef S_SPLINT_S
22#include <arpa/inet.h>
23#endif
24#include "mr_mem.h"
25
26/*@unused@*/
27//static char cvsid[] = "$Id: libmondo-tools.c 1081 2007-01-28 22:20:07Z bruno $";
28
29extern int g_tape_buffer_size_MB;
30extern char *g_erase_tmpdir_and_scratchdir;
31extern char *g_serial_string;
32extern bool g_text_mode;
33extern int g_currentY;
34extern int g_current_media_number;
35
36/**
37 * @addtogroup globalGroup
38 * @{
39 */
40bool g_remount_cdrom_at_end,    ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
41 g_remount_floppy_at_end;       ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
42bool g_cd_recovery;             ///< TRUE if we're making an "autonuke" backup.
43double g_kernel_version;
44
45/**
46 * The place where /boot is mounted. - Used locally only
47 */
48static char *g_boot_mountpt = NULL;
49
50/**
51 * The location of Mondo's home directory.
52 */
53char *g_mondo_home = NULL;
54
55/**
56 * The serial string (used to differentiate between backups) of the current backup.
57 */
58char *g_serial_string = NULL;
59
60/**
61 * The location where tmpfs is mounted, or "" if it's not mounted.
62 */
63char *g_tmpfs_mountpt = NULL;
64char *g_magicdev_command = NULL;
65
66/**
67 * The default maximum level to log messages at or below.
68 */
69int g_loglevel = DEFAULT_DEBUG_LEVEL;
70
71/* @} - end of globalGroup */
72
73
74extern pid_t g_buffer_pid;
75extern pid_t g_main_pid;
76
77extern t_bkptype g_backup_media_type;
78extern char *g_backup_media_string;
79
80extern bool am_I_in_disaster_recovery_mode(void);
81
82
83/**
84 * @addtogroup utilityGroup
85 * @{
86 */
87/**
88 * Assertion handler. Prints a friendly message to the user,
89 * offering to ignore all, dump core, break to debugger,
90 * exit, or ignore. Intended to be used with an assert() macro.
91 *
92 * @param file The file in which the assertion triggered.
93 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
94 * @param line The line number of the assert() statement.
95 * @param exp The expression that failed (as a string).
96 */
97void _mondo_assert_fail(const char *file,
98                        const char *function, int line, const char *exp)
99{
100    static int ignoring_assertions = 0;
101    bool is_valid = TRUE;
102
103    log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
104           function);
105    if (ignoring_assertions) {
106        log_it("Well, the user doesn't care...");
107        return;
108    }
109#ifndef _XWIN
110    if (!g_text_mode)
111        newtSuspend();
112#endif
113    printf(_("ASSERTION FAILED: `%s'\n"), exp);
114    printf(_("\tat %s:%d in %s\n\n"), file, line, function);
115    printf(_("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? "));
116    do {
117        is_valid = TRUE;
118        switch (toupper(getchar())) {
119        case 'A':               // ignore (A)ll
120            ignoring_assertions = 1;
121            break;
122        case 'B':               // a(B)ort
123            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
124            raise(SIGABRT);
125            break;              /* "can't get here" */
126        case 'D':               // (D)ebug, aka asm("int 3")
127#ifdef __IA32__
128            __asm__ __volatile__("int $3"); // break to debugger
129#endif
130            break;
131        case 'E':               // (E)xit
132            fatal_error("Failed assertion -- see above for details");
133            break;              /* "can't get here" */
134        case 'I':               // (I)gnore
135            break;
136            /* These next two work as follows:
137               the `default' catches the user's invalid choice and says so;
138               the '\n' catches the newline on the end and prints the prompt again.
139             */
140        case '\n':
141            printf
142                (_("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? "));
143            break;
144        default:
145            is_valid = FALSE;
146            printf(_("Invalid choice.\n"));
147            break;
148        }
149    } while (!is_valid);
150
151    if (ignoring_assertions) {
152        log_it("Ignoring ALL assertions from now on.");
153    } else {
154        log_it("Ignoring assertion: %s", exp);
155    }
156
157    getchar();                  // skip \n
158
159#ifndef _XWIN
160    if (!g_text_mode)
161        newtResume();
162#endif
163}
164
165/**
166 * Clean's up users' KDE desktops.
167 * @bug Details about this function are unknown.
168 */
169void clean_up_KDE_desktop_if_necessary(void)
170{
171    char *tmp;
172
173    mr_asprintf(&tmp,
174             "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
175file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
176awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
177else { print $0;};}' $file.old  > $file ; fi ; done");
178    run_program_and_log_output(tmp, 5);
179    mr_free(tmp);
180}
181
182
183/**
184 * Locate mondoarchive's home directory. Searches in /usr/share/mondo,
185 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
186 *
187 * @param home_sz String to store the home directory ("" if it could not be found).
188 * @return 0 for success, nonzero for failure.
189 */
190char *find_and_store_mondoarchives_home()
191{
192    char *home_sz = NULL;
193
194    mr_asprintf(&home_sz, MONDO_SHARE);
195    return (home_sz);
196}
197
198
199char *get_architecture()
200{
201#ifdef __IA32__
202    return ("i386");
203#endif
204#ifdef __X86_64__
205    return ("x86-64");
206#endif
207#ifdef __IA64__
208    return ("ia64");
209#endif
210    return ("unknown");
211}
212
213
214
215double get_kernel_version()
216{
217    char *p, *tmp;
218    double d;
219#ifdef __FreeBSD__
220    // JOSH - FIXME :)
221    d = 5.2;                    // :-)
222#else
223    tmp = call_program_and_get_last_line_of_output("uname -r");
224    p = strchr(tmp, '.');
225    if (p) {
226        p = strchr(++p, '.');
227        if (p) {
228            while (*p) {
229                *p = *(p + 1);
230                p++;
231            }
232        }
233    }
234//  log_msg(1, "tmp = '%s'", tmp);
235    d = atof(tmp);
236#endif
237    log_msg(1, "g_kernel_version = %f", d);
238    return (d);
239}
240
241
242
243
244
245/**
246 * Get the current time.
247 * @return number of seconds since the epoch.
248 */
249long get_time()
250{
251    return (long) time((void *) 0);
252}
253
254
255
256
257
258
259
260/**
261 * Initialize a RAID volume structure, setting fields to zero. The
262 * actual hard drive is unaffected.
263 *
264 * @param raidrec The RAID volume structure to initialize.
265 * @note This function is system dependent.
266 */
267#ifdef __FreeBSD__
268void initialize_raidrec(struct vinum_volume *raidrec)
269{
270    int i, j;
271    raidrec->volname[0] = '\0';
272    raidrec->plexes = 0;
273    for (i = 0; i < 9; ++i) {
274        raidrec->plex[i].raidlevel = -1;
275        raidrec->plex[i].stripesize = 0;
276        raidrec->plex[i].subdisks = 0;
277        for (j = 0; j < 9; ++j) {
278            strcpy(raidrec->plex[i].sd[j].which_device, "");
279        }
280    }
281}
282#else
283void initialize_raidrec(struct raid_device_record *raidrec)
284{
285    assert(raidrec != NULL);
286    raidrec->raid_device = NULL;
287    raidrec->raid_level = -9;
288    raidrec->persistent_superblock = 1;
289    raidrec->chunk_size = 64;
290    raidrec->parity = -1;
291    raidrec->data_disks.entries = 0;
292    raidrec->spare_disks.entries = 0;
293    raidrec->parity_disks.entries = 0;
294    raidrec->failed_disks.entries = 0;
295    raidrec->additional_vars.entries = 0;
296}
297#endif
298
299
300
301
302/**
303 * Insert modules that Mondo requires.
304 * Currently inserts @c dos, @c fat, @c vfat, and @c osst for Linux;
305 * @c msdosfs and @c ext2fs for FreeBSD.
306 */
307void insmod_crucial_modules(void)
308{
309#ifdef __FreeBSD__
310    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
311    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
312#else
313    system("modprobe -a dos fat vfat loop &> /dev/null");
314#endif
315}
316
317
318/**
319 * Finish configuring the backup information structure. Call this function
320 * to set the parameters that depend on those that can be given on the command
321 * line.
322 *
323 * @param bkpinfo The backup information structure. Fields modified/used:
324 * - Used: @c bkpinfo->backup_data
325 * - Used: @c bkpinfo->backup_media_type
326 * - Used: @c bkpinfo->cdrw_speed
327 * - Used: @c bkpinfo->compression_level
328 * - Used: @c bkpinfo->include_paths
329 * - Used: @c bkpinfo->prefix
330 * - Used: @c bkpinfo->isodir
331 * - Used: @c bkpinfo->manual_cd_tray
332 * - Used: @c bkpinfo->make_cd_use_lilo
333 * - Used: @c bkpinfo->media_device
334 * - Used: @c bkpinfo->nfs_mount
335 * - Used: @c bkpinfo->nonbootable_backup
336 * - Used: @c bkpinfo->scratchdir
337 * - Used: @c bkpinfo->tmpdir
338 * - Used: @c bkpinfo->use_lzo
339 * - Modified: @c bkpinfo->call_before_iso
340 * - Modified: @c bkpinfo->call_make_iso
341 * - Modified: @c bkpinfo->optimal_set_size
342 * - Modified: @c bkpinfo->zip_exe
343 * - Modified: @c bkpinfo->zip_suffix
344 *
345 * @return number of errors, or 0 for success.
346 * @note Also creates directories that are specified in the @c bkpinfo structure but
347 * do not exist.
348 */
349int post_param_configuration(struct s_bkpinfo *bkpinfo)
350{
351    char *extra_cdrom_params = NULL;
352    char *mondo_mkisofs_sz = NULL;
353    char *command = NULL;
354    char *hostname = NULL, *ip_address = NULL;
355    int retval = 0;
356    long avm = 0;
357    char *colon = NULL;
358    char *cdr_exe = NULL;
359    char *tmp = NULL;
360    char *tmp1 = NULL;
361    char *call_before_iso_user = NULL;
362    int rdsiz_MB;
363    char *iso_path = NULL;
364
365    assert(bkpinfo != NULL);
366    bkpinfo->optimal_set_size =
367        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
368        1024;
369
370    log_msg(1, "Foo");
371    if (bkpinfo->backup_media_type == tape) {
372        log_msg(1, "Bar");
373        mr_asprintf(&tmp, "mt -f %s status", bkpinfo->media_device);
374        log_msg(1, "tmp = '%s'", tmp);
375        if (run_program_and_log_output(tmp, 3)) {
376            fatal_error
377                ("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.");
378        }
379        mr_free(tmp);
380    }
381    make_hole_for_dir(bkpinfo->scratchdir);
382    make_hole_for_dir(bkpinfo->tmpdir);
383    if (bkpinfo->backup_media_type == iso)
384        make_hole_for_dir(bkpinfo->isodir);
385
386    run_program_and_log_output("uname -a", 5);
387    run_program_and_log_output("cat /etc/*-release", 5);
388    run_program_and_log_output("cat /etc/*issue*", 5);
389    mr_asprintf(&g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
390    mr_asprintf(&command, "mkdir -p %s", g_tmpfs_mountpt);
391    paranoid_system(command);
392    mr_free(command);
393    rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
394#ifdef __FreeBSD__
395    tmp = call_program_and_get_last_line_of_output
396             ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6");
397    avm += atol(tmp);
398    mr_free(tmp);
399    tmp = call_program_and_get_last_line_of_output
400             ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc");
401    avm += atol(tmp);
402    mr_free(tmp);
403    mr_asprintf(&command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
404             g_tmpfs_mountpt);
405#else
406    tmp = call_program_and_get_last_line_of_output
407             ("free | grep ':' | tr -s ' ' '\t' | cut -f2 | head -n1");
408    avm += atol(tmp);
409    mr_free(tmp);
410    mr_asprintf(&command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
411             g_tmpfs_mountpt, rdsiz_MB, 'm');
412    run_program_and_log_output("cat /proc/cpuinfo", 5);
413    /* BERLIOS: rpm is not necessarily there ! */
414    run_program_and_log_output
415        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
416         5);
417#endif
418    if (avm / 1024 > rdsiz_MB * 3) {
419        if (run_program_and_log_output(command, 5)) {
420            mr_free(g_tmpfs_mountpt);
421            log_it("Failed to mount tmpfs");
422        } else {
423            log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
424        }
425    } else {
426        mr_free(g_tmpfs_mountpt);
427        log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
428    }
429    mr_free(command);
430
431    if (bkpinfo->use_lzo) {
432        mr_allocstr(bkpinfo->zip_exe, "lzop");
433        mr_allocstr(bkpinfo->zip_suffix, "lzo");
434    } else if (bkpinfo->use_gzip) {
435        strcpy(bkpinfo->zip_exe, "gzip");
436        strcpy(bkpinfo->zip_suffix, "gz");
437    } else if (bkpinfo->use_gzip) {
438        strcpy(bkpinfo->zip_exe, "gzip");
439        strcpy(bkpinfo->zip_suffix, "gz");
440    } else if (bkpinfo->compression_level != 0) {
441        mr_allocstr(bkpinfo->zip_exe, "bzip2");
442        mr_allocstr(bkpinfo->zip_suffix, "bz2");
443    } else {
444        bkpinfo->zip_exe = NULL;
445        bkpinfo->zip_suffix = NULL;
446    }
447
448// DVD
449
450    if (bkpinfo->backup_media_type == dvd) {
451        tmp = find_home_of_exe("growisofs");
452        if (!tmp) {
453            fatal_error("Please install growisofs.");
454        }
455        mr_free(tmp);
456
457        if (bkpinfo->nonbootable_backup) {
458            mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
459        } else if
460#ifdef __FreeBSD__
461            (TRUE)
462#else
463            (bkpinfo->make_cd_use_lilo)
464#endif
465#ifdef __IA64__
466    {
467        mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
468    }
469#else
470    {
471        mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
472    }
473#endif
474        else
475        {
476            mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
477        }
478        if (bkpinfo->manual_cd_tray) {
479            fatal_error("Manual CD tray + DVD not supported yet.");
480            // -m isn't supported by growisofs, BTW...
481        } else {
482            mr_asprintf(&bkpinfo->call_make_iso,
483                    "%s %s -Z %s . 2>> _ERR_",
484                    mondo_mkisofs_sz, "", bkpinfo->media_device);
485        }
486        mr_free(mondo_mkisofs_sz);
487
488        if (getenv ("SUDO_COMMAND")) {
489            mr_asprintf(&command, "strings `which growisofs` | grep -c SUDO_COMMAND");
490            tmp = call_program_and_get_last_line_of_output(command);
491            if (!strcmp(tmp, "1")) {
492                popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
493                fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
494            }       
495            mr_free(tmp);
496            mr_free(command);
497        }
498        log_msg(2, "call_make_iso (DVD res) is ... %s",
499                bkpinfo->call_make_iso);
500    }                           // end of DVD code
501
502// CD-R or CD-RW
503    if (bkpinfo->backup_media_type == cdrw
504        || bkpinfo->backup_media_type == cdr) {
505        if (!bkpinfo->manual_cd_tray) {
506            mr_asprintf(&extra_cdrom_params, "-waiti ");
507        }
508        if (bkpinfo->backup_media_type == cdrw) {
509            if (extra_cdrom_params != NULL) {
510                mr_asprintf(&tmp, extra_cdrom_params);
511                mr_free(extra_cdrom_params);
512                mr_asprintf(&extra_cdrom_params, "%s blank=fast ", tmp);
513            } else {
514                mr_asprintf(&extra_cdrom_params, "blank=fast ");
515            }
516        }
517        tmp = find_home_of_exe("cdrecord");
518        tmp1 = find_home_of_exe("dvdrecord");
519        if (tmp) {
520            mr_asprintf(&cdr_exe, "cdrecord");
521        } else if (tmp1) {
522            mr_asprintf(&cdr_exe, "dvdrecord");
523        } else {
524            fatal_error("Please install either cdrecord or dvdrecord.");
525        }
526        mr_free(tmp);
527        mr_free(tmp1);
528
529        if (bkpinfo->nonbootable_backup) {
530            mr_asprintf(&mondo_mkisofs_sz, "%s -r -p MondoRescue -publisher www.mondorescue.org -A Mondo_Rescue_GPL_Version -V _CD#_", bkpinfo->mr_conf->mondo_iso_creation_cmd);
531        } else if
532#ifdef __FreeBSD__
533            (TRUE)
534#else
535            (bkpinfo->make_cd_use_lilo)
536#endif
537#ifdef __IA64__
538    {
539        mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
540    }
541#else
542    {
543        mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
544    }
545#endif
546        else
547        {
548            mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
549        }
550        if (bkpinfo->manual_cd_tray) {
551            if (bkpinfo->call_before_iso == NULL) {
552                mr_asprintf(&bkpinfo->call_before_iso,
553                        "%s -o %s/temporary.iso . 2>> _ERR_",
554                        mondo_mkisofs_sz, bkpinfo->tmpdir);
555            } else {
556                mr_asprintf(&call_before_iso_user, bkpinfo->call_before_iso);
557                mr_asprintf(&bkpinfo->call_before_iso,
558                                    "( %s -o %s/temporary.iso . 2>> _ERR_ ; %s )",
559                        mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
560                mr_free(call_before_iso_user);
561            }
562            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
563            mr_asprintf(&bkpinfo->call_make_iso,
564                    "%s %s -v %s fs=4m dev=%s speed=%d %s/temporary.iso",
565                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
566                    extra_cdrom_params, bkpinfo->media_device,
567                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
568        } else {
569            mr_asprintf(&bkpinfo->call_make_iso,
570                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
571                    mondo_mkisofs_sz, cdr_exe,
572                    (bkpinfo->please_dont_eject) ? " " : "-eject",
573                    extra_cdrom_params, bkpinfo->media_device,
574                    bkpinfo->cdrw_speed);
575        }
576        mr_free(mondo_mkisofs_sz);
577        mr_free(cdr_exe);
578        mr_free(extra_cdrom_params);
579    }                           // end of CD code
580
581    if (bkpinfo->backup_media_type == iso) {
582
583/* Patch by Conor Daly <conor.daly@met.ie>
584 * 23-june-2004
585 * Break up isodir into iso_mnt and iso_path
586 * These will be used along with iso-dev at restore time
587 * to locate the ISOs where ever they're mounted
588 */
589
590        log_it("isodir = %s", bkpinfo->isodir);
591        mr_asprintf(&command, "df -P %s | tail -n1 | cut -d' ' -f1",
592                 bkpinfo->isodir);
593        log_it("command = %s", command);
594        tmp = call_program_and_get_last_line_of_output(command);
595        mr_free(command);
596        log_it("res of it = %s", tmp);
597        mr_asprintf(&tmp1, "%s/ISO-DEV", bkpinfo->tmpdir);
598        write_one_liner_data_file(tmp1, tmp);
599        mr_free(tmp1);
600
601        mr_asprintf(&command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
602                 tmp);
603        mr_free(tmp);
604        log_it("command = %s", command);
605        tmp = call_program_and_get_last_line_of_output(command);
606        mr_free(command);
607        log_it("res of it = %s", tmp);
608
609        mr_asprintf(&tmp1, "%s/ISO-MNT", bkpinfo->tmpdir);
610        write_one_liner_data_file(tmp1, tmp);
611        mr_free(tmp1);
612
613        log_it("isomnt: %s, %d", tmp, strlen(tmp));
614        if (strlen(bkpinfo->isodir) < strlen(tmp)) {
615            mr_asprintf(&iso_path, " ");
616        } else {
617            mr_asprintf(&iso_path, "%s", bkpinfo->isodir + strlen(tmp));
618        }
619        mr_free(tmp);
620
621        mr_asprintf(&tmp, "%s/ISODIR", bkpinfo->tmpdir);
622        write_one_liner_data_file(tmp, iso_path);
623        mr_free(tmp);
624        log_it("isodir: %s", iso_path);
625        mr_free(iso_path);
626        mr_asprintf(&tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
627        write_one_liner_data_file(tmp, bkpinfo->prefix);
628        log_it("iso-prefix: %s",  bkpinfo->prefix);
629        mr_free(tmp);
630/* End patch */
631    }                           // end of iso code
632
633    if (bkpinfo->backup_media_type == nfs) {
634        mr_asprintf(&hostname, bkpinfo->nfs_mount);
635        colon = strchr(hostname, ':');
636        if (!colon) {
637            log_it("nfs mount doesn't have a colon in it");
638            retval++;
639        } else {
640            struct hostent *hent;
641
642            *colon = '\0';
643            hent = gethostbyname(hostname);
644            if (!hent) {
645                log_it("Can't resolve NFS mount (%s): %s", hostname,
646                       hstrerror(h_errno));
647                retval++;
648            } else {
649                mr_asprintf(&ip_address, "%s%s", inet_ntoa((struct in_addr)
650                                                        *((struct in_addr
651                                                           *) hent->
652                                                          h_addr)),
653                         strchr(bkpinfo->nfs_mount, ':'));
654                mr_allocstr(bkpinfo->nfs_mount, ip_address);
655                mr_free(ip_address);
656            }
657        }
658        store_nfs_config(bkpinfo);
659        mr_free(hostname);
660    }
661
662    log_it("Finished processing incoming params");
663    if (retval) {
664        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
665    }
666    mr_asprintf(&tmp, "%s", MONDO_TMPISOS);
667    if (does_file_exist(tmp)) {
668        unlink(tmp);
669    }
670    mr_free(tmp);
671
672    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
673        log_it("tmpdir or scratchdir are blank/missing");
674        retval++;
675    }
676    if (bkpinfo->include_paths == NULL) {
677        //      fatal_error ("Why no backup path?");
678        mr_asprintf(&bkpinfo->include_paths, "/");
679    }
680    chmod(bkpinfo->scratchdir, 0700);
681    chmod(bkpinfo->tmpdir, 0700);
682    g_backup_media_type = bkpinfo->backup_media_type;
683    mr_allocstr(g_backup_media_string,bkpinfo->backup_media_string);
684    return (retval);
685}
686
687
688
689/**
690 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
691 * Seeds the random-number generator, loads important modules, checks the sanity
692 * of the user's Linux distribution, and deletes logfile.
693 * @param bkpinfo The backup information structure. Will be initialized.
694 * @return number of errors (0 for success)
695 */
696int pre_param_configuration(struct s_bkpinfo *bkpinfo)
697{
698    int res = 0;
699
700    make_hole_for_dir(MNT_CDROM);
701    assert(bkpinfo != NULL);
702    srandom((unsigned long) (time(NULL)));
703    insmod_crucial_modules();
704    reset_bkpinfo(bkpinfo);     // also sets defaults ('/'=backup path, 3=compression level)
705    if (bkpinfo->disaster_recovery) {
706        if (!does_nonMS_partition_exist()) {
707            fatal_error
708                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
709        }
710    }
711
712    unlink(MONDO_TRACEFILE);
713    run_program_and_log_output("rm -Rf /tmp/changed.files*", FALSE);
714    if ((g_mondo_home = find_and_store_mondoarchives_home()) == NULL) {
715        fprintf(stderr,
716                "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");
717        res++;
718        return (res);
719    }
720    res += some_basic_system_sanity_checks();
721    if (res) {
722        log_it("Your distribution did not pass Mondo's sanity test.");
723    }
724    g_current_media_number = 1;
725    bkpinfo->postnuke_tarball = NULL;
726    mr_free(bkpinfo->nfs_mount);
727    return (res);
728}
729
730
731
732
733/**
734 * Reset all fields of the backup information structure to a sensible default.
735 * @param bkpinfo The @c bkpinfo to reset.
736 */
737void reset_bkpinfo(struct s_bkpinfo *bkpinfo)
738{
739    int i = 0;
740
741    log_msg(1, "Hi");
742
743    assert(bkpinfo != NULL);
744    /* BERLIOS : Useless
745    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
746    */
747
748    bkpinfo->manual_cd_tray = FALSE;
749    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
750    bkpinfo->boot_loader = '\0';
751
752    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
753        bkpinfo->media_size[i] = -1;
754    }
755
756    mr_free(bkpinfo->media_device);
757    mr_free(bkpinfo->boot_device);
758    mr_free(bkpinfo->zip_exe);
759    mr_free(bkpinfo->zip_suffix);
760    mr_free(bkpinfo->restore_path);
761    bkpinfo->use_lzo = FALSE;
762    bkpinfo->use_gzip = FALSE;
763    bkpinfo->do_not_compress_these[0] = '\0';
764    bkpinfo->verify_data = FALSE;
765    bkpinfo->backup_data = FALSE;
766    bkpinfo->restore_data = FALSE;
767    bkpinfo->disaster_recovery =
768        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
769    if (bkpinfo->disaster_recovery) {
770        mr_allocstr(bkpinfo->isodir, "/");
771    } else {
772        mr_allocstr(bkpinfo->isodir, "/var/cache/mondo/iso");
773    }
774    mr_allocstr(bkpinfo->prefix, STD_PREFIX);
775
776    mr_free(bkpinfo->scratchdir);
777    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
778    mr_free(bkpinfo->tmpdir);
779    mr_asprintf(&bkpinfo->tmpdir, "/tmp/tmpfs/mondo.tmp.%d", (int) (random() % 32768)); // for mondorestore
780    bkpinfo->optimal_set_size = 0;
781    bkpinfo->backup_media_type = none;
782    mr_free(bkpinfo->backup_media_string);
783    mr_allocstr(bkpinfo->include_paths, "/");
784    mr_free(bkpinfo->exclude_paths);
785    mr_free(bkpinfo->call_before_iso);
786    mr_free(bkpinfo->call_make_iso);
787    mr_free(bkpinfo->call_burn_iso);
788    mr_free(bkpinfo->call_after_iso);
789    mr_free(bkpinfo->image_devs);
790    mr_free(bkpinfo->postnuke_tarball);
791    mr_free(bkpinfo->kernel_path);
792    mr_free(bkpinfo->nfs_mount);
793    mr_free(bkpinfo->nfs_remote_dir);
794    bkpinfo->wipe_media_first = FALSE;
795    bkpinfo->differential = FALSE;
796    bkpinfo->cdrw_speed = 0;
797// patch by Herman Kuster 
798    bkpinfo->differential = 0;
799// patch end
800    bkpinfo->compression_level = 3;
801}
802
803
804/**
805 * Get the remaining free space (in MB) on @p partition.
806 * @param partition The partition to check free space on (either a device or a mountpoint).
807 * @return The free space on @p partition, in MB.
808 */
809long free_space_on_given_partition(char *partition)
810{
811    char *command = NULL;
812    char *out_sz = NULL;
813    long res;
814
815    assert_string_is_neither_NULL_nor_zerolength(partition);
816
817    mr_asprintf(&command, "df -m -P %s &> /dev/null", partition);
818    if (system(command)) {
819        return (-1);
820    }                           // partition does not exist
821    mr_free(command);
822
823    mr_asprintf(&command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
824             partition);
825    out_sz = call_program_and_get_last_line_of_output(command);
826    mr_free(command);
827    if (strlen(out_sz) == 0) {
828        return (-1);
829    }                           // error within df, probably
830    res = atol(out_sz);
831    mr_free(out_sz);
832    return (res);
833}
834
835
836
837/**
838 * Check the user's system for sanity. Checks performed:
839 * - make sure user has enough RAM (32mb required, 64mb recommended)
840 * - make sure user has enough free space in @c /
841 * - check kernel for ramdisk support
842 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
843 * - make sure CD-ROM is unmounted
844 * - make sure /etc/modules.conf exists
845 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
846 *
847 * @return number of problems with the user's setup (0 for success)
848 */
849int some_basic_system_sanity_checks()
850{
851
852    /*@ buffers ************ */
853    char *tmp = NULL;
854
855    /*@ int's *************** */
856    int retval = 0;
857    long Lres;
858
859
860    mvaddstr_and_log_it(g_currentY, 0,
861                        "Checking sanity of your Linux distribution");
862#ifndef __FreeBSD__
863    if (system("which mkfs.vfat &> /dev/null")
864        && !system("which mkfs.msdos &> /dev/null")) {
865        log_it
866            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
867        run_program_and_log_output
868            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
869    }
870    tmp = call_program_and_get_last_line_of_output
871             ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2");
872    if (atol(tmp) < 35000) {
873        retval++;
874        log_to_screen(_("You must have at least 32MB of RAM to use Mondo."));
875    }
876    if (atol(tmp) < 66000) {
877        log_to_screen
878            (_("WARNING! You have very little RAM. Please upgrade to 64MB or more."));
879    }
880    mr_free(tmp);
881#endif
882
883    Lres = free_space_on_given_partition("/var/cache");
884    log_it("Free space on given partition = %ld MB", Lres);
885
886    if (Lres < 50) {
887        fatal_error("Your /var/cache partition has <50MB free. Please adjust your partition table to something saner."); 
888    }
889
890    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
891        retval++;
892        log_to_screen
893            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
894        fatal_error
895            ("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. :)");
896    }
897#ifndef __FreeBSD__
898    if (run_program_and_log_output
899        ("grep ramdisk /proc/devices", FALSE)) {
900        if (!ask_me_yes_or_no
901            (_("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?")))
902        {
903            //          retval++;
904            log_to_screen
905                (_("It looks as if your kernel lacks ramdisk and initrd support."));
906            log_to_screen
907                (_("I'll allow you to proceed but FYI, if I'm right, your kernel is broken."));
908        }
909    }
910#endif
911    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
912    retval += whine_if_not_found("mkisofs");
913    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
914        retval += whine_if_not_found("cdrecord");
915    }
916    retval += whine_if_not_found("bzip2");
917    retval += whine_if_not_found("gzip");
918    retval += whine_if_not_found("awk");
919    retval += whine_if_not_found("md5sum");
920    retval += whine_if_not_found("strings");
921    retval += whine_if_not_found("mindi");
922    retval += whine_if_not_found("buffer");
923
924    // abort if Windows partition but no ms-sys and parted
925    if (!run_program_and_log_output
926        ("mount | grep -w vfat | grep -vE \"/dev/fd|nexdisk\"", 0)
927        ||
928        !run_program_and_log_output
929        ("mount | grep -w dos | grep -vE \"/dev/fd|nexdisk\"", 0)) {
930        log_to_screen(_("I think you have a Windows 9x partition."));
931        retval += whine_if_not_found("parted");
932#ifndef __IA64__
933        /* IA64 always has one vfat partition for EFI even without Windows */
934        // retval +=
935        tmp = find_home_of_exe("ms-sys");
936        if (!tmp) {
937            log_to_screen(_("Please install ms-sys just in case."));
938        }
939        mr_free(tmp);
940#endif
941    }
942
943    tmp = find_home_of_exe("cmp");
944    if (!tmp) {
945        whine_if_not_found("cmp");
946    }
947    mr_free(tmp);
948
949    run_program_and_log_output
950        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
951    tmp = call_program_and_get_last_line_of_output("mount | grep -E \"cdr(om|w)\"");
952    if (strcmp("", tmp)) {
953        if (strstr(tmp, "autofs")) {
954            log_to_screen
955                (_("Your CD-ROM is mounted via autofs. I therefore cannot tell"));
956            log_to_screen
957                (_("if a CD actually is inserted. If a CD is inserted, please"));
958            log_to_screen(_("eject it. Thank you."));
959            log_it
960                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
961        } else
962            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
963            retval++;
964            fatal_error
965                ("Your CD-ROM drive is mounted. Please unmount it.");
966        }
967    }
968    mr_free(tmp);
969#ifndef __FreeBSD__
970    if (!does_file_exist("/etc/modules.conf")) {
971        if (does_file_exist("/etc/conf.modules")) {
972            log_it("Linking /etc/modules.conf to /etc/conf.modules");
973            run_program_and_log_output
974                ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
975        } else if (does_file_exist("/etc/modprobe.d")) {
976            log_it
977                ("Directory /etc/modprobe.d found. mindi will use its contents.");
978        } else if (does_file_exist("/etc/modprobe.conf")) {
979            log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
980            run_program_and_log_output
981                ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
982        } else {
983            retval++;
984            log_to_screen
985                (_("Please find out what happened to /etc/modules.conf"));
986        }
987    }
988#endif
989
990    run_program_and_log_output("cat /etc/fstab", 5);
991#ifdef __FreeBSD__
992    run_program_and_log_output("vinum printconfig", 5);
993#else
994    run_program_and_log_output("cat /etc/raidtab", 5);
995#endif
996
997    if (run_program_and_log_output("mindi -V", 1)) {
998        log_to_screen(_("Could not ascertain mindi's version number."));
999        log_to_screen
1000            (_("You have not installed Mondo and/or Mindi properly."));
1001        log_to_screen(_("Please uninstall and reinstall them both."));
1002        fatal_error("Please reinstall Mondo and Mindi.");
1003    }
1004    if (run_program_and_log_output
1005        ("mindi --makemountlist /tmp/mountlist.txt.test", 5)) {
1006        log_to_screen
1007            (_("Mindi --makemountlist /tmp/mountlist.txt.test failed for some reason."));
1008        log_to_screen
1009            (_("Please run that command by hand and examine /var/log/mindi.log"));
1010        log_to_screen
1011            (_("for more information. Perhaps your /etc/fstab file is insane."));
1012        log_to_screen
1013            (_("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see."));
1014        retval++;
1015    }
1016
1017    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1018        && !does_file_exist("/etc/raidtab")) {
1019        log_to_screen
1020            (_("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat"));
1021        create_raidtab_from_mdstat("/etc/raidtab");
1022    }
1023
1024    if (retval) {
1025        mvaddstr_and_log_it(g_currentY++, 74, _("Failed."));
1026    } else {
1027        mvaddstr_and_log_it(g_currentY++, 74, _("Done."));
1028    }
1029    return (retval);
1030}
1031
1032/**
1033 * Retrieve the line containing @p label from the config file.
1034 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1035 * @param label What to read from the file.
1036 * @param value Where to put it.
1037 * @return 0 for success, 1 for failure.
1038 */
1039int read_cfg_var(char *config_file, char *label, char *value)
1040{
1041    /*@ buffer ****************************************************** */
1042    char *command = NULL;
1043    char *tmp = NULL;
1044
1045    /*@ end vars *************************************************** */
1046
1047    assert_string_is_neither_NULL_nor_zerolength(config_file);
1048    assert_string_is_neither_NULL_nor_zerolength(label);
1049
1050    if (!does_file_exist(config_file)) {
1051        mr_asprintf(&tmp, "(read_cfg_var) Cannot find %s config file",
1052                 config_file);
1053        log_to_screen(tmp);
1054        mr_free(tmp);
1055        value = NULL;
1056        return (1);
1057    /* } BERLIOS: Useless:
1058         else if (strstr(value, "/dev/") && strstr(value, "t0")
1059               && !strcmp(label, "media-dev")) {
1060        log_msg(2, "FYI, I shan't read new value for %s - already got %s",
1061                label, value);
1062        return (0);
1063    */ } else {
1064        mr_asprintf(&command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1065                label, config_file);
1066        value = call_program_and_get_last_line_of_output(command);
1067        mr_free(command);
1068        if (strlen(value) == 0) {
1069            return (1);
1070        } else {
1071            return (0);
1072        }
1073    }
1074}
1075
1076
1077/**
1078 * Remount @c supermount if it was unmounted earlier.
1079 */
1080void remount_supermounts_if_necessary()
1081{
1082    if (g_remount_cdrom_at_end) {
1083        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1084    }
1085    if (g_remount_floppy_at_end) {
1086        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1087    }
1088}
1089
1090/**
1091 * Unmount @c supermount if it's mounted.
1092 */
1093void unmount_supermounts_if_necessary()
1094{
1095    if (run_program_and_log_output
1096        ("mount | grep cdrom | grep super", FALSE) == 0) {
1097        g_remount_cdrom_at_end = TRUE;
1098        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1099    }
1100    if (run_program_and_log_output
1101        ("mount | grep floppy | grep super", FALSE) == 0) {
1102        g_remount_floppy_at_end = TRUE;
1103        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1104    }
1105}
1106
1107/**
1108 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1109 */
1110void mount_boot_if_necessary()
1111{
1112    char *tmp;
1113    char *tmp1;
1114    char *command;
1115
1116    log_msg(1, "Started sub");
1117    log_msg(4, "Setting command to something");
1118    mr_asprintf(&command,
1119             "grep -v ':' /etc/fstab | grep -vE '^#.*$' | grep -E \"[   ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1120    log_msg(4, "Cool. Command = '%s'", command);
1121    tmp = call_program_and_get_last_line_of_output(command);
1122    mr_free(command);
1123
1124    log_msg(4, "tmp = '%s'", tmp);
1125    if (tmp) {
1126        log_it("/boot is at %s according to /etc/fstab", tmp);
1127        if (strstr(tmp, "LABEL=")) {
1128            if (!run_program_and_log_output("mount /boot", 5)) {
1129                mr_free(g_boot_mountpt);
1130                mr_asprintf(&g_boot_mountpt, "/boot");
1131                log_msg(1, "Mounted /boot");
1132            } else {
1133                log_it("...ignored cos it's a label :-)");
1134            }
1135        } else {
1136            mr_asprintf(&command, "mount | grep -E '^%s'", tmp);
1137            log_msg(3, "command = %s", command);
1138            if (run_program_and_log_output(command, 5)) {
1139                mr_free(g_boot_mountpt);
1140                mr_asprintf(&g_boot_mountpt, tmp);
1141                mr_asprintf(&tmp1,
1142                         "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1143                         g_boot_mountpt);
1144                log_it(tmp1);
1145                mr_free(tmp1);
1146
1147                mr_asprintf(&tmp1, "mount %s", g_boot_mountpt);
1148                if (run_program_and_log_output(tmp1, 5)) {
1149                    /* BERLIOS: Useless ???
1150                    mr_free(g_boot_mountpt);
1151                    mr_asprintf(&g_boot_mountpt, " ");
1152                    */
1153                    log_msg(1, "Plan B");
1154                    if (!run_program_and_log_output("mount /boot", 5)) {
1155                        mr_free(g_boot_mountpt);
1156                        mr_asprintf(&g_boot_mountpt, "/boot");
1157                        log_msg(1, "Plan B worked");
1158                    } else {
1159                        log_msg(1,
1160                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1161                    }
1162                }
1163                mr_free(tmp1);
1164            }
1165            mr_free(command);
1166        }
1167    }
1168    mr_free(tmp);
1169    log_msg(1, "Ended sub");
1170}
1171
1172
1173/**
1174 * If we mounted /boot earlier, unmount it.
1175 */
1176void unmount_boot_if_necessary()
1177{
1178    char *tmp;
1179
1180    log_msg(3, "starting");
1181    if (g_boot_mountpt != NULL) {
1182        mr_asprintf(&tmp, "umount %s", g_boot_mountpt);
1183        if (run_program_and_log_output(tmp, 5)) {
1184            log_it("WARNING - unable to unmount /boot");
1185        }
1186        mr_free(tmp);
1187    }
1188    log_msg(3, "leaving");
1189}
1190
1191
1192
1193/**
1194 * Write a line to a configuration file. Writes a line of the form,
1195 * @c label @c value.
1196 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1197 * @param label What to call this bit of data you're writing.
1198 * @param value The bit of data you're writing.
1199 * @return 0 for success, 1 for failure.
1200 */
1201int write_cfg_var(char *config_file, char *label, char *value)
1202{
1203    /*@ buffers ***************************************************** */
1204    char *command;
1205    char *tempfile;
1206    char *tmp;
1207
1208
1209    /*@ end vars *************************************************** */
1210    assert_string_is_neither_NULL_nor_zerolength(config_file);
1211    assert_string_is_neither_NULL_nor_zerolength(label);
1212    assert(value != NULL);
1213
1214    if (!does_file_exist(config_file)) {
1215        mr_asprintf(&tmp, "(write_cfg_file) Cannot find %s config file",
1216                 config_file);
1217        log_to_screen(tmp);
1218        mr_free(tmp);
1219        return (1);
1220    }
1221    tempfile = call_program_and_get_last_line_of_output
1222             ("mktemp -q /tmp/mojo-jojo.blah.XXXXXX");
1223    if (does_file_exist(config_file)) {
1224        mr_asprintf(&command, "grep -vE '^%s .*$' %s > %s",
1225                label, config_file, tempfile);
1226        paranoid_system(command);
1227        mr_free(command);
1228    }
1229    mr_asprintf(&command, "echo \"%s %s\" >> %s", label, value, tempfile);
1230    paranoid_system(command);
1231    mr_free(command);
1232
1233    mr_asprintf(&command, "mv -f %s %s", tempfile, config_file);
1234    paranoid_system(command);
1235    mr_free(command);
1236    unlink(tempfile);
1237    mr_free(tempfile);
1238    return (0);
1239}
1240
1241/**
1242 * Allocate or free important globals, depending on @p mal.
1243 * @param mal If TRUE, malloc; if FALSE, free.
1244 */
1245void do_libmondo_global_strings_thing(int mal)
1246{
1247    if (mal) {
1248            /*
1249        iamhere("Malloc'ing globals");
1250        */
1251        g_erase_tmpdir_and_scratchdir = NULL;
1252        malloc_string(g_serial_string);
1253    } else {
1254        iamhere("Freeing globals");
1255        mr_free(g_boot_mountpt);
1256        mr_free(g_mondo_home);
1257        mr_free(g_tmpfs_mountpt);
1258        mr_free(g_erase_tmpdir_and_scratchdir);
1259        mr_free(g_serial_string);
1260        mr_free(g_magicdev_command);
1261    }
1262}
1263
1264/**
1265 * Allocate important globals.
1266 * @see do_libmondo_global_strings_thing
1267 */
1268void malloc_libmondo_global_strings(void)
1269{
1270    do_libmondo_global_strings_thing(1);
1271}
1272
1273/**
1274 * Free important globals.
1275 * @see do_libmondo_global_strings_thing
1276 */
1277void free_libmondo_global_strings(void)
1278{
1279    do_libmondo_global_strings_thing(0);
1280}
1281
1282
1283
1284/**
1285 * Stop @c magicdev if it's running.
1286 * The command used to start it is saved in @p g_magicdev_command.
1287 */
1288void stop_magicdev_if_necessary()
1289{
1290    g_magicdev_command = call_program_and_get_last_line_of_output
1291           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99");
1292    if (g_magicdev_command) {
1293        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1294        paranoid_system("killall magicdev");
1295    }
1296}
1297
1298
1299/**
1300 * Restart magicdev if it was stopped.
1301 */
1302void restart_magicdev_if_necessary()
1303{
1304    char *tmp = NULL;
1305
1306    if (!g_magicdev_command) {
1307        mr_asprintf(&tmp, "%s &", g_magicdev_command);
1308        paranoid_system(tmp);
1309        mr_free(tmp);
1310    }
1311}
1312
1313/* @} - end of utilityGroup */
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