source: trunk/mondo/mondo/common/libmondo-tools.c @ 688

Last change on this file since 688 was 688, checked in by bcornec, 13 years ago

Huge memory management patch.
Still not finished but a lot as been done.
What remains is around some functions returning strings, and some structure members.
(Could not finish due to laptop failure !)

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File size: 35.9 KB
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1/* $Id: libmondo-tools.c 688 2006-07-17 13:44:46Z bcornec $
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 "mondostructures.h"
12#include "libmondo-tools.h"
13#include "newt-specific-EXT.h"
14#include "libmondo-files-EXT.h"
15#include "libmondo-fork-EXT.h"
16#include "libmondo-raid-EXT.h"
17#include <sys/socket.h>
18#include <netdb.h>
19#include <netinet/in.h>
20#ifndef S_SPLINT_S
21#include <arpa/inet.h>
22#endif
23
24/*@unused@*/
25//static char cvsid[] = "$Id: libmondo-tools.c 688 2006-07-17 13:44:46Z bcornec $";
26
27extern int g_tape_buffer_size_MB;
28extern char *g_erase_tmpdir_and_scratchdir;
29extern char *g_serial_string;
30extern bool g_text_mode;
31extern int g_currentY;
32extern int g_current_media_number;
33
34/**
35 * @addtogroup globalGroup
36 * @{
37 */
38bool g_remount_cdrom_at_end,    ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
39 g_remount_floppy_at_end;       ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
40bool g_cd_recovery;             ///< TRUE if we're making an "autonuke" backup.
41double g_kernel_version;
42
43/**
44 * The place where /boot is mounted. - Used locally only
45 */
46static char *g_boot_mountpt = NULL;
47
48/**
49 * The location of Mondo's home directory.
50 */
51char *g_mondo_home = NULL;
52
53/**
54 * The serial string (used to differentiate between backups) of the current backup.
55 */
56char *g_serial_string = NULL;
57
58/**
59 * The location where tmpfs is mounted, or "" if it's not mounted.
60 */
61char *g_tmpfs_mountpt = NULL;
62char *g_magicdev_command = NULL;
63
64/**
65 * The default maximum level to log messages at or below.
66 */
67int g_loglevel = DEFAULT_DEBUG_LEVEL;
68
69/* @} - end of globalGroup */
70
71
72extern pid_t g_buffer_pid;
73extern pid_t g_main_pid;
74
75extern t_bkptype g_backup_media_type;
76
77extern bool am_I_in_disaster_recovery_mode(void);
78
79
80/**
81 * @addtogroup utilityGroup
82 * @{
83 */
84/**
85 * Assertion handler. Prints a friendly message to the user,
86 * offering to ignore all, dump core, break to debugger,
87 * exit, or ignore. Intended to be used with an assert() macro.
88 *
89 * @param file The file in which the assertion triggered.
90 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
91 * @param line The line number of the assert() statement.
92 * @param exp The expression that failed (as a string).
93 */
94void _mondo_assert_fail(const char *file,
95                        const char *function, int line, const char *exp)
96{
97    static int ignoring_assertions = 0;
98    bool is_valid = TRUE;
99
100    log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
101           function);
102    if (ignoring_assertions) {
103        log_it("Well, the user doesn't care...");
104        return;
105    }
106#ifndef _XWIN
107    if (!g_text_mode)
108        newtSuspend();
109#endif
110    printf(_("ASSERTION FAILED: `%s'\n"), exp);
111    printf(_("\tat %s:%d in %s\n\n"), file, line, function);
112    printf(_("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? "));
113    do {
114        is_valid = TRUE;
115        switch (toupper(getchar())) {
116        case 'A':               // ignore (A)ll
117            ignoring_assertions = 1;
118            break;
119        case 'B':               // a(B)ort
120            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
121            raise(SIGABRT);
122            break;              /* "can't get here" */
123        case 'D':               // (D)ebug, aka asm("int 3")
124#ifdef __IA32__
125            __asm__ __volatile__("int $3"); // break to debugger
126#endif
127            break;
128        case 'E':               // (E)xit
129            fatal_error("Failed assertion -- see above for details");
130            break;              /* "can't get here" */
131        case 'I':               // (I)gnore
132            break;
133            /* These next two work as follows:
134               the `default' catches the user's invalid choice and says so;
135               the '\n' catches the newline on the end and prints the prompt again.
136             */
137        case '\n':
138            printf
139                (_("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? "));
140            break;
141        default:
142            is_valid = FALSE;
143            printf(_("Invalid choice.\n"));
144            break;
145        }
146    } while (!is_valid);
147
148    if (ignoring_assertions) {
149        log_it("Ignoring ALL assertions from now on.");
150    } else {
151        log_it("Ignoring assertion: %s", exp);
152    }
153
154    getchar();                  // skip \n
155
156#ifndef _XWIN
157    if (!g_text_mode)
158        newtResume();
159#endif
160}
161
162/**
163 * Clean's up users' KDE desktops.
164 * @bug Details about this function are unknown.
165 */
166void clean_up_KDE_desktop_if_necessary(void)
167{
168    char *tmp;
169
170    asprintf(&tmp,
171             "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
172file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
173awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
174else { print $0;};}' $file.old  > $file ; fi ; done");
175    run_program_and_log_output(tmp, 5);
176    paranoid_free(tmp);
177}
178
179
180/**
181 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
182 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
183 *
184 * @param home_sz String to store the home directory ("" if it could not be found).
185 * @return 0 for success, nonzero for failure.
186 */
187char *find_and_store_mondoarchives_home()
188{
189    char *home_sz = NULL;
190
191    asprintf(&home_sz, MONDO_SHARE);
192    return (home_sz);
193}
194
195
196char *get_architecture()
197{
198#ifdef __IA32__
199    return ("i386");
200#endif
201#ifdef __X86_64__
202    return ("x86-64");
203#endif
204#ifdef __IA64__
205    return ("ia64");
206#endif
207    return ("unknown");
208}
209
210
211
212double get_kernel_version()
213{
214    char *p, *tmp;
215    double d;
216#ifdef __FreeBSD__
217    // JOSH - FIXME :)
218    d = 5.2;                    // :-)
219#else
220    tmp = call_program_and_get_last_line_of_output("uname -r");
221    p = strchr(tmp, '.');
222    if (p) {
223        p = strchr(++p, '.');
224        if (p) {
225            while (*p) {
226                *p = *(p + 1);
227                p++;
228            }
229        }
230    }
231//  log_msg(1, "tmp = '%s'", tmp);
232    d = atof(tmp);
233#endif
234    log_msg(1, "g_kernel_version = %f", d);
235    return (d);
236}
237
238
239
240
241
242/**
243 * Get the current time.
244 * @return number of seconds since the epoch.
245 */
246long get_time()
247{
248    return (long) time((void *) 0);
249}
250
251
252
253
254
255
256
257/**
258 * Initialize a RAID volume structure, setting fields to zero. The
259 * actual hard drive is unaffected.
260 *
261 * @param raidrec The RAID volume structure to initialize.
262 * @note This function is system dependent.
263 */
264#ifdef __FreeBSD__
265void initialize_raidrec(struct vinum_volume *raidrec)
266{
267    int i, j;
268    raidrec->volname[0] = '\0';
269    raidrec->plexes = 0;
270    for (i = 0; i < 9; ++i) {
271        raidrec->plex[i].raidlevel = -1;
272        raidrec->plex[i].stripesize = 0;
273        raidrec->plex[i].subdisks = 0;
274        for (j = 0; j < 9; ++j) {
275            strcpy(raidrec->plex[i].sd[j].which_device, "");
276        }
277    }
278}
279#else
280void initialize_raidrec(struct raid_device_record *raidrec)
281{
282    assert(raidrec != NULL);
283    raidrec->raid_device[0] = '\0';
284    raidrec->raid_level = -9;
285    raidrec->persistent_superblock = 1;
286    raidrec->chunk_size = 64;
287    raidrec->parity = -1;
288    raidrec->data_disks.entries = 0;
289    raidrec->spare_disks.entries = 0;
290    raidrec->parity_disks.entries = 0;
291    raidrec->failed_disks.entries = 0;
292    raidrec->additional_vars.entries = 0;
293}
294#endif
295
296
297
298
299/**
300 * Insert modules that Mondo requires.
301 * Currently inserts @c dos, @c fat, @c vfat, and @c osst for Linux;
302 * @c msdosfs and @c ext2fs for FreeBSD.
303 */
304void insmod_crucial_modules(void)
305{
306#ifdef __FreeBSD__
307    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
308    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
309#else
310    system("modprobe -a dos fat vfat loop &> /dev/null");
311#endif
312}
313
314
315/**
316 * Finish configuring the backup information structure. Call this function
317 * to set the parameters that depend on those that can be given on the command
318 * line.
319 *
320 * @param bkpinfo The backup information structure. Fields modified/used:
321 * - Used: @c bkpinfo->backup_data
322 * - Used: @c bkpinfo->backup_media_type
323 * - Used: @c bkpinfo->cdrw_speed
324 * - Used: @c bkpinfo->compression_level
325 * - Used: @c bkpinfo->include_paths
326 * - Used: @c bkpinfo->prefix
327 * - Used: @c bkpinfo->isodir
328 * - Used: @c bkpinfo->manual_cd_tray
329 * - Used: @c bkpinfo->make_cd_use_lilo
330 * - Used: @c bkpinfo->media_device
331 * - Used: @c bkpinfo->nfs_mount
332 * - Used: @c bkpinfo->nonbootable_backup
333 * - Used: @c bkpinfo->scratchdir
334 * - Used: @c bkpinfo->tmpdir
335 * - Used: @c bkpinfo->use_lzo
336 * - Modified: @c bkpinfo->call_before_iso
337 * - Modified: @c bkpinfo->call_make_iso
338 * - Modified: @c bkpinfo->optimal_set_size
339 * - Modified: @c bkpinfo->zip_exe
340 * - Modified: @c bkpinfo->zip_suffix
341 *
342 * @return number of errors, or 0 for success.
343 * @note Also creates directories that are specified in the @c bkpinfo structure but
344 * do not exist.
345 */
346int post_param_configuration(struct s_bkpinfo *bkpinfo)
347{
348    char *extra_cdrom_params = NULL;
349    char *mondo_mkisofs_sz = NULL;
350    char *command;
351    char *hostname, *ip_address;
352    int retval = 0;
353    long avm = 0;
354    char *colon;
355    char *cdr_exe;
356    char *tmp;
357    char *tmp1;
358    char call_before_iso_user[MAX_STR_LEN] = "\0";
359    int rdsiz_MB;
360    char *iso_path;
361
362    assert(bkpinfo != NULL);
363    bkpinfo->optimal_set_size =
364        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
365        1024;
366
367    log_msg(1, "Foo");
368    if (bkpinfo->backup_media_type == tape) {
369        log_msg(1, "Bar");
370        asprintf(&tmp, "mt -f %s status", bkpinfo->media_device);
371        log_msg(1, "tmp = '%s'", tmp);
372        if (run_program_and_log_output(tmp, 3)) {
373            fatal_error
374                ("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.");
375        }
376        paranoid_free(tmp);
377    }
378    make_hole_for_dir(bkpinfo->scratchdir);
379    make_hole_for_dir(bkpinfo->tmpdir);
380    if (bkpinfo->backup_media_type == iso)
381        make_hole_for_dir(bkpinfo->isodir);
382
383    run_program_and_log_output("uname -a", 5);
384    run_program_and_log_output("cat /etc/*-release", 5);
385    run_program_and_log_output("cat /etc/*issue*", 5);
386    asprintf(&g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
387    asprintf(&command, "mkdir -p %s", g_tmpfs_mountpt);
388    paranoid_system(command);
389    paranoid_free(command);
390    rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
391#ifdef __FreeBSD__
392    tmp = call_program_and_get_last_line_of_output
393             ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6");
394    avm += atol(tmp);
395    paranoid_free(tmp);
396    tmp = call_program_and_get_last_line_of_output
397             ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc");
398    avm += atol(tmp);
399    paranoid_free(tmp);
400    asprintf(&command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
401             g_tmpfs_mountpt);
402#else
403    tmp = call_program_and_get_last_line_of_output
404             ("free | grep \":\" | tr -s ' ' '\t' | cut -f2 | head -n1");
405    avm += atol(tmp);
406    paranoid_free(tmp);
407    asprintf(&command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
408             g_tmpfs_mountpt, rdsiz_MB, 'm');
409    run_program_and_log_output("cat /proc/cpuinfo", 5);
410    /* BERLIOS: rpm is not necessarily there ! */
411    run_program_and_log_output
412        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
413         5);
414#endif
415    if (avm / 1024 > rdsiz_MB * 3) {
416        if (run_program_and_log_output(command, 5)) {
417            g_tmpfs_mountpt[0] = '\0';
418            log_it("Failed to mount tmpfs");
419        } else {
420            log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
421        }
422    } else {
423        g_tmpfs_mountpt[0] = '\0';
424        log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
425    }
426    paranoid_free(command);
427
428    if (bkpinfo->use_lzo) {
429        strcpy(bkpinfo->zip_exe, "lzop");
430        strcpy(bkpinfo->zip_suffix, "lzo");
431    } else if (bkpinfo->compression_level != 0) {
432        strcpy(bkpinfo->zip_exe, "bzip2");
433        strcpy(bkpinfo->zip_suffix, "bz2");
434    } else {
435        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
436    }
437
438// DVD
439
440    if (bkpinfo->backup_media_type == dvd) {
441        if (!(find_home_of_exe("growisofs"))) {
442            fatal_error("Please install growisofs.");
443        }
444        if (bkpinfo->nonbootable_backup) {
445            asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
446        } else if
447#ifdef __FreeBSD__
448            (TRUE)
449#else
450            (bkpinfo->make_cd_use_lilo)
451#endif
452#ifdef __IA64__
453    {
454        asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
455    }
456#else
457    {
458        asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
459    }
460#endif
461        else
462        {
463            asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
464        }
465        if (bkpinfo->manual_cd_tray) {
466            fatal_error("Manual CD tray + DVD not supported yet.");
467            // -m isn't supported by growisofs, BTW...
468        } else {
469            sprintf(bkpinfo->call_make_iso,
470                    "%s %s -Z %s . 2>> _ERR_",
471                    mondo_mkisofs_sz, "", bkpinfo->media_device);
472        }
473        paranoid_free(mondo_mkisofs_sz);
474
475        if (getenv ("SUDO_COMMAND")) {
476            asprintf(&command, "strings `which growisofs` | grep -c SUDO_COMMAND");
477            tmp = call_program_and_get_last_line_of_output(command);
478            if (!strcmp(tmp, "1")) {
479                popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
480                fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
481            }       
482            paranoid_free(tmp);
483            paranoid_free(command);
484        }
485        log_msg(2, "call_make_iso (DVD res) is ... %s",
486                bkpinfo->call_make_iso);
487    }                           // end of DVD code
488
489// CD-R or CD-RW
490    if (bkpinfo->backup_media_type == cdrw
491        || bkpinfo->backup_media_type == cdr) {
492        if (!bkpinfo->manual_cd_tray) {
493            asprintf(&extra_cdrom_params, "-waiti ");
494        }
495        if (bkpinfo->backup_media_type == cdrw) {
496            if (extra_cdrom_params != NULL) {
497                asprintf(&tmp, extra_cdrom_params);
498                paranoid_free(extra_cdrom_params);
499                asprintf(&extra_cdrom_params, "%s blank=fast ", tmp);
500            } else {
501                asprintf(&extra_cdrom_params, "blank=fast ");
502            }
503        }
504        if (find_home_of_exe("cdrecord")) {
505            asprintf(&cdr_exe, "cdrecord");
506        } else if (find_home_of_exe("dvdrecord")) {
507            asprintf(&cdr_exe, "dvdrecord");
508        } else {
509            fatal_error("Please install either cdrecord or dvdrecord.");
510        }
511        if (bkpinfo->nonbootable_backup) {
512            asprintf(&mondo_mkisofs_sz, "%s -r -p MondoRescue -publisher www.mondorescue.org -A Mondo_Rescue_GPL_Version -V _CD#_", mrconf->mondo_iso_creation_cmd);
513        } else if
514#ifdef __FreeBSD__
515            (TRUE)
516#else
517            (bkpinfo->make_cd_use_lilo)
518#endif
519#ifdef __IA64__
520    {
521        asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
522    }
523#else
524    {
525        asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
526    }
527#endif
528        else
529        {
530            asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
531        }
532        if (bkpinfo->manual_cd_tray) {
533            if (bkpinfo->call_before_iso[0] == '\0') {
534            sprintf(bkpinfo->call_before_iso,
535                        "%s -o %s/temporary.iso . 2>> _ERR_",
536                        mondo_mkisofs_sz, bkpinfo->tmpdir);
537                } else {
538                strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
539                sprintf (bkpinfo->call_before_iso,
540                                    "( %s -o %s/temporary.iso . 2>> _ERR_ ; %s )",
541                        mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
542            }
543            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
544            sprintf(bkpinfo->call_make_iso,
545                    "%s %s -v %s fs=4m dev=%s speed=%d %s/temporary.iso",
546                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
547                    extra_cdrom_params, bkpinfo->media_device,
548                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
549        } else {
550            sprintf(bkpinfo->call_make_iso,
551                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
552                    mondo_mkisofs_sz, cdr_exe,
553                    (bkpinfo->please_dont_eject) ? " " : "-eject",
554                    extra_cdrom_params, bkpinfo->media_device,
555                    bkpinfo->cdrw_speed);
556        }
557        paranoid_free(mondo_mkisofs_sz);
558        paranoid_free(cdr_exe);
559        paranoid_free(extra_cdrom_params);
560    }                           // end of CD code
561
562    if (bkpinfo->backup_media_type == iso) {
563
564/* Patch by Conor Daly <conor.daly@met.ie>
565 * 23-june-2004
566 * Break up isodir into iso_mnt and iso_path
567 * These will be used along with iso-dev at restore time
568 * to locate the ISOs where ever they're mounted
569 */
570
571        log_it("isodir = %s", bkpinfo->isodir);
572        asprintf(&command, "df -P %s | tail -n1 | cut -d' ' -f1",
573                 bkpinfo->isodir);
574        log_it("command = %s", command);
575        tmp = call_program_and_get_last_line_of_output(command);
576        paranoid_free(command);
577        log_it("res of it = %s", tmp);
578        asprintf(&tmp1, "%s/ISO-DEV", bkpinfo->tmpdir);
579        write_one_liner_data_file(tmp1, tmp);
580        paranoid_free(tmp1);
581
582        asprintf(&command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
583                 tmp);
584        paranoid_free(tmp);
585        log_it("command = %s", command);
586        tmp = call_program_and_get_last_line_of_output(command);
587        paranoid_free(command);
588        log_it("res of it = %s", tmp);
589
590        asprintf(&tmp1, "%s/ISO-MNT", bkpinfo->tmpdir);
591        write_one_liner_data_file(tmp1, tmp);
592        paranoid_free(tmp1);
593
594        log_it("isomnt: %s, %d", tmp, strlen(tmp));
595        if (strlen(bkpinfo->isodir) < strlen(tmp)) {
596            asprintf(&iso_path, " ");
597        } else {
598            asprintf(&iso_path, "%s", bkpinfo->isodir + strlen(tmp));
599        }
600        paranoid_free(tmp);
601
602        asprintf(&tmp, "%s/ISODIR", bkpinfo->tmpdir);
603        write_one_liner_data_file(tmp, iso_path);
604        paranoid_free(tmp);
605        log_it("isodir: %s", iso_path);
606        paranoid_free(iso_path);
607        asprintf(&tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
608        write_one_liner_data_file(tmp, bkpinfo->prefix);
609        log_it("iso-prefix: %s",  bkpinfo->prefix);
610        paranoid_free(tmp);
611/* End patch */
612    }                           // end of iso code
613
614    if (bkpinfo->backup_media_type == nfs) {
615        asprintf(&hostname, bkpinfo->nfs_mount);
616        colon = strchr(hostname, ':');
617        if (!colon) {
618            log_it("nfs mount doesn't have a colon in it");
619            retval++;
620        } else {
621            struct hostent *hent;
622
623            *colon = '\0';
624            hent = gethostbyname(hostname);
625            if (!hent) {
626                log_it("Can't resolve NFS mount (%s): %s", hostname,
627                       hstrerror(h_errno));
628                retval++;
629            } else {
630                asprintf(&ip_address, "%s%s", inet_ntoa((struct in_addr)
631                                                        *((struct in_addr
632                                                           *) hent->
633                                                          h_addr)),
634                         strchr(bkpinfo->nfs_mount, ':'));
635                strcpy(bkpinfo->nfs_mount, ip_address);
636                paranoid_free(ip_address);
637            }
638        }
639        store_nfs_config(bkpinfo);
640        paranoid_free(hostname);
641    }
642
643    log_it("Finished processing incoming params");
644    if (retval) {
645        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
646    }
647    asprintf(&tmp, "%s", MONDO_TMPISOS);
648    if (does_file_exist(tmp)) {
649        unlink(tmp);
650    }
651    paranoid_free(tmp);
652
653    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
654        log_it("tmpdir or scratchdir are blank/missing");
655        retval++;
656    }
657    if (bkpinfo->include_paths[0] == '\0') {
658        //      fatal_error ("Why no backup path?");
659        strcpy(bkpinfo->include_paths, "/");
660    }
661    chmod(bkpinfo->scratchdir, 0700);
662    chmod(bkpinfo->tmpdir, 0700);
663    g_backup_media_type = bkpinfo->backup_media_type;
664    return (retval);
665}
666
667
668
669/**
670 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
671 * Seeds the random-number generator, loads important modules, checks the sanity
672 * of the user's Linux distribution, and deletes logfile.
673 * @param bkpinfo The backup information structure. Will be initialized.
674 * @return number of errors (0 for success)
675 */
676int pre_param_configuration(struct s_bkpinfo *bkpinfo)
677{
678    int res = 0;
679
680    make_hole_for_dir(MNT_CDROM);
681    assert(bkpinfo != NULL);
682    srandom((unsigned long) (time(NULL)));
683    insmod_crucial_modules();
684    reset_bkpinfo(bkpinfo);     // also sets defaults ('/'=backup path, 3=compression level)
685    if (bkpinfo->disaster_recovery) {
686        if (!does_nonMS_partition_exist()) {
687            fatal_error
688                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
689        }
690    }
691
692    unlink(MONDO_TRACEFILE);
693    run_program_and_log_output("rm -Rf /tmp/changed.files*", FALSE);
694    if ((g_mondo_home = find_and_store_mondoarchives_home()) == NULL) {
695        fprintf(stderr,
696                "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");
697        res++;
698        return (res);
699    }
700    res += some_basic_system_sanity_checks();
701    if (res) {
702        log_it("Your distribution did not pass Mondo's sanity test.");
703    }
704    g_current_media_number = 1;
705    bkpinfo->postnuke_tarball = NULL;
706    bkpinfo->nfs_mount = NULL;
707    return (res);
708}
709
710
711
712
713/**
714 * Reset all fields of the backup information structure to a sensible default.
715 * @param bkpinfo The @c bkpinfo to reset.
716 */
717void reset_bkpinfo(struct s_bkpinfo *bkpinfo)
718{
719    int i = 0;
720
721    log_msg(1, "Hi");
722
723    assert(bkpinfo != NULL);
724    /* BERLIOS : Useless
725    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
726    */
727
728    bkpinfo->manual_cd_tray = FALSE;
729    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
730    bkpinfo->boot_loader = '\0';
731
732    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
733        bkpinfo->media_size[i] = -1;
734    }
735
736    paranoid_free(bkpinfo->media_device);
737    paranoid_free(bkpinfo->boot_device);
738    paranoid_free(bkpinfo->zip_exe);
739    paranoid_free(bkpinfo->zip_suffix);
740    paranoid_free(bkpinfo->restore_path);
741    bkpinfo->use_lzo = FALSE;
742    paranoid_free(bkpinfo->do_not_compress_these);
743    bkpinfo->verify_data = FALSE;
744    bkpinfo->backup_data = FALSE;
745    bkpinfo->restore_data = FALSE;
746    bkpinfo->disaster_recovery =
747        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
748    if (bkpinfo->disaster_recovery) {
749        paranoid_alloc(bkpinfo->isodir, "/");
750    } else {
751        paranoid_alloc(bkpinfo->isodir, "/var/cache/mondo/iso");
752    }
753    paranoid_alloc(bkpinfo->prefix, STD_PREFIX);
754
755    paranoid_free(bkpinfo->scratchdir);
756    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
757    paranoid_free(bkpinfo->tmpdir);
758    asprintf(&bkpinfo->tmpdir, "/tmp/tmpfs/mondo.tmp.%d", (int) (random() % 32768));    // for mondorestore
759    bkpinfo->optimal_set_size = 0;
760    bkpinfo->backup_media_type = none;
761    paranoid_alloc(bkpinfo->include_paths, "/");
762    paranoid_free(bkpinfo->exclude_paths);
763    paranoid_free(bkpinfo->call_before_iso);
764    paranoid_free(bkpinfo->call_make_iso);
765    paranoid_free(bkpinfo->call_burn_iso);
766    paranoid_free(bkpinfo->call_after_iso);
767    paranoid_free(bkpinfo->image_devs);
768    paranoid_free(bkpinfo->postnuke_tarball);
769    paranoid_free(bkpinfo->kernel_path);
770    paranoid_free(bkpinfo->nfs_mount);
771    paranoid_free(bkpinfo->nfs_remote_dir);
772    bkpinfo->wipe_media_first = FALSE;
773    bkpinfo->differential = FALSE;
774    bkpinfo->cdrw_speed = 0;
775// patch by Herman Kuster 
776    bkpinfo->differential = 0;
777// patch end
778    bkpinfo->compression_level = 3;
779}
780
781
782/**
783 * Get the remaining free space (in MB) on @p partition.
784 * @param partition The partition to check free space on (either a device or a mountpoint).
785 * @return The free space on @p partition, in MB.
786 */
787long free_space_on_given_partition(char *partition)
788{
789    char *command = NULL;
790    char *out_sz = NULL;
791    long res;
792
793    assert_string_is_neither_NULL_nor_zerolength(partition);
794
795    asprintf(&command, "df -m -P %s &> /dev/null", partition);
796    if (system(command)) {
797        return (-1);
798    }                           // partition does not exist
799    paranoid_free(command);
800
801    asprintf(&command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
802             partition);
803    out_sz = call_program_and_get_last_line_of_output(command);
804    paranoid_free(command);
805    if (strlen(out_sz) == 0) {
806        return (-1);
807    }                           // error within df, probably
808    res = atol(out_sz);
809    paranoid_free(out_sz);
810    return (res);
811}
812
813
814
815/**
816 * Check the user's system for sanity. Checks performed:
817 * - make sure user has enough RAM (32mb required, 64mb recommended)
818 * - make sure user has enough free space in @c /
819 * - check kernel for ramdisk support
820 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
821 * - make sure CD-ROM is unmounted
822 * - make sure /etc/modules.conf exists
823 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
824 *
825 * @return number of problems with the user's setup (0 for success)
826 */
827int some_basic_system_sanity_checks()
828{
829
830    /*@ buffers ************ */
831    char *tmp;
832
833    /*@ int's *************** */
834    int retval = 0;
835    long Lres;
836
837
838    mvaddstr_and_log_it(g_currentY, 0,
839                        "Checking sanity of your Linux distribution");
840#ifndef __FreeBSD__
841    if (system("which mkfs.vfat &> /dev/null")
842        && !system("which mkfs.msdos &> /dev/null")) {
843        log_it
844            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
845        run_program_and_log_output
846            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
847    }
848    tmp = call_program_and_get_last_line_of_output
849             ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2");
850    if (atol(tmp) < 35000) {
851        retval++;
852        log_to_screen(_("You must have at least 32MB of RAM to use Mondo."));
853    }
854    if (atol(tmp) < 66000) {
855        log_to_screen
856            (_("WARNING! You have very little RAM. Please upgrade to 64MB or more."));
857    }
858    paranoid_free(tmp);
859#endif
860
861    if ((Lres = free_space_on_given_partition("/var/cache/mondo")) == -1) /* {
862        Lres = free_space_on_given_partition("/");
863    }
864    */
865    log_it("Free space on given partition = %ld MB", Lres);
866
867    if (Lres < 50) {
868        fatal_error("Your /var/cache/mondo partition has <50MB free. Please adjust your partition table to something saner."); 
869    }
870
871    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
872        retval++;
873        log_to_screen
874            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
875        fatal_error
876            ("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. :)");
877    }
878#ifndef __FreeBSD__
879    if (run_program_and_log_output
880        ("grep ramdisk /proc/devices", FALSE)) {
881        if (!ask_me_yes_or_no
882            (_("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?")))
883        {
884            //          retval++;
885            log_to_screen
886                (_("It looks as if your kernel lacks ramdisk and initrd support."));
887            log_to_screen
888                (_("I'll allow you to proceed but FYI, if I'm right, your kernel is broken."));
889        }
890    }
891#endif
892    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
893    retval += whine_if_not_found("mkisofs");
894    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
895        retval += whine_if_not_found("cdrecord");
896    }
897    retval += whine_if_not_found("bzip2");
898    retval += whine_if_not_found("awk");
899    retval += whine_if_not_found("md5sum");
900    retval += whine_if_not_found("strings");
901    retval += whine_if_not_found("mindi");
902    retval += whine_if_not_found("buffer");
903
904    // abort if Windows partition but no ms-sys and parted
905    if (!run_program_and_log_output
906        ("mount | grep -w vfat | grep -vE \"/dev/fd|nexdisk\"", 0)
907        ||
908        !run_program_and_log_output
909        ("mount | grep -w dos | grep -vE \"/dev/fd|nexdisk\"", 0)) {
910        log_to_screen(_("I think you have a Windows 9x partition."));
911        retval += whine_if_not_found("parted");
912#ifndef __IA64__
913        /* IA64 always has one vfat partition for EFI even without Windows */
914        // retval +=
915        if (!find_home_of_exe("ms-sys")) {
916            log_to_screen(_("Please install ms-sys just in case."));
917        }
918#endif
919    }
920
921    if (!find_home_of_exe("cmp")) {
922        if (!find_home_of_exe("true")) {
923            whine_if_not_found("cmp");
924        } else {
925            log_to_screen
926                (_("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you."));
927            if (run_program_and_log_output
928                ("cp -f `which true` /usr/bin/cmp", 0)) {
929                fatal_error("Failed to create dummy 'cmp' file.");
930            }
931        }
932    }
933    run_program_and_log_output
934        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
935    tmp = call_program_and_get_last_line_of_output("mount | grep -E \"cdr(om|w)\"");
936    if (strcmp("", tmp)) {
937        if (strstr(tmp, "autofs")) {
938            log_to_screen
939                (_("Your CD-ROM is mounted via autofs. I therefore cannot tell"));
940            log_to_screen
941                (_("if a CD actually is inserted. If a CD is inserted, please"));
942            log_to_screen(_("eject it. Thank you."));
943            log_it
944                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
945        } else
946            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
947            retval++;
948            fatal_error
949                ("Your CD-ROM drive is mounted. Please unmount it.");
950        }
951    }
952    paranoid_free(tmp);
953#ifndef __FreeBSD__
954    if (!does_file_exist("/etc/modules.conf")) {
955        if (does_file_exist("/etc/conf.modules")) {
956            log_it("Linking /etc/modules.conf to /etc/conf.modules");
957            run_program_and_log_output
958                ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
959        } else if (does_file_exist("/etc/modprobe.d")) {
960            log_it
961                ("Directory /etc/modprobe.d found. mindi will use its contents.");
962        } else if (does_file_exist("/etc/modprobe.conf")) {
963            log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
964            run_program_and_log_output
965                ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
966        } else {
967            retval++;
968            log_to_screen
969                (_("Please find out what happened to /etc/modules.conf"));
970        }
971    }
972#endif
973
974    run_program_and_log_output("cat /etc/fstab", 5);
975#ifdef __FreeBSD__
976    run_program_and_log_output("vinum printconfig", 5);
977#else
978    run_program_and_log_output("cat /etc/raidtab", 5);
979#endif
980
981    if (run_program_and_log_output("mindi -V", 1)) {
982        log_to_screen(_("Could not ascertain mindi's version number."));
983        log_to_screen
984            (_("You have not installed Mondo and/or Mindi properly."));
985        log_to_screen(_("Please uninstall and reinstall them both."));
986        fatal_error("Please reinstall Mondo and Mindi.");
987    }
988    if (run_program_and_log_output
989        ("mindi --makemountlist /tmp/mountlist.txt.test", 5)) {
990        log_to_screen
991            (_("Mindi --makemountlist /tmp/mountlist.txt.test failed for some reason."));
992        log_to_screen
993            (_("Please run that command by hand and examine /var/log/mindi.log"));
994        log_to_screen
995            (_("for more information. Perhaps your /etc/fstab file is insane."));
996        log_to_screen
997            (_("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see."));
998        retval++;
999    }
1000
1001    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1002        && !does_file_exist("/etc/raidtab")) {
1003        log_to_screen
1004            (_("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat"));
1005        create_raidtab_from_mdstat("/etc/raidtab");
1006    }
1007
1008    if (retval) {
1009        mvaddstr_and_log_it(g_currentY++, 74, _("Failed."));
1010    } else {
1011        mvaddstr_and_log_it(g_currentY++, 74, _("Done."));
1012    }
1013    return (retval);
1014}
1015
1016/**
1017 * Retrieve the line containing @p label from the config file.
1018 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1019 * @param label What to read from the file.
1020 * @param value Where to put it.
1021 * @return 0 for success, 1 for failure.
1022 */
1023int read_cfg_var(char *config_file, char *label, char *value)
1024{
1025    /*@ buffer ****************************************************** */
1026    char *command = NULL;
1027    char *tmp = NULL;
1028
1029    /*@ end vars *************************************************** */
1030
1031    assert_string_is_neither_NULL_nor_zerolength(config_file);
1032    assert_string_is_neither_NULL_nor_zerolength(label);
1033
1034    if (!does_file_exist(config_file)) {
1035        asprintf(&tmp, "(read_cfg_var) Cannot find %s config file",
1036                 config_file);
1037        log_to_screen(tmp);
1038        paranoid_free(tmp);
1039        value = NULL;
1040        return (1);
1041    } else if (strstr(value, "/dev/") && strstr(value, "t0")
1042               && !strcmp(label, "media-dev")) {
1043        log_msg(2, "FYI, I shan't read new value for %s - already got %s",
1044                label, value);
1045        return (0);
1046    } else {
1047        asprintf(&command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1048                label, config_file);
1049        value = call_program_and_get_last_line_of_output(command);
1050        paranoid_free(command);
1051        if (strlen(value) == 0) {
1052            return (1);
1053        } else {
1054            return (0);
1055        }
1056    }
1057}
1058
1059
1060/**
1061 * Remount @c supermount if it was unmounted earlier.
1062 */
1063void remount_supermounts_if_necessary()
1064{
1065    if (g_remount_cdrom_at_end) {
1066        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1067    }
1068    if (g_remount_floppy_at_end) {
1069        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1070    }
1071}
1072
1073/**
1074 * Unmount @c supermount if it's mounted.
1075 */
1076void unmount_supermounts_if_necessary()
1077{
1078    if (run_program_and_log_output
1079        ("mount | grep cdrom | grep super", FALSE) == 0) {
1080        g_remount_cdrom_at_end = TRUE;
1081        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1082    }
1083    if (run_program_and_log_output
1084        ("mount | grep floppy | grep super", FALSE) == 0) {
1085        g_remount_floppy_at_end = TRUE;
1086        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1087    }
1088}
1089
1090/**
1091 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1092 */
1093void mount_boot_if_necessary()
1094{
1095    char *tmp;
1096    char *tmp1;
1097    char *command;
1098
1099    log_msg(1, "Started sub");
1100    log_msg(4, "About to set g_boot_mountpt to \"\"");
1101    asprintf(&g_boot_mountpt, "");
1102    log_msg(4, "Done. Great. Seeting command to something");
1103    asprintf(&command,
1104             "grep -v \":\" /etc/fstab | grep -vx \"#.*\" | grep -w \"/boot\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1105    log_msg(4, "Cool. Command = '%s'", command);
1106    tmp = call_program_and_get_last_line_of_output(command);
1107    paranoid_free(command);
1108
1109    log_msg(4, "tmp = '%s'", tmp);
1110    if (tmp) {
1111        log_it("/boot is at %s according to /etc/fstab", tmp);
1112        if (strstr(tmp, "LABEL=")) {
1113            if (!run_program_and_log_output("mount /boot", 5)) {
1114                paranoid_free(g_boot_mountpt);
1115                asprintf(&g_boot_mountpt, "/boot");
1116                log_msg(1, "Mounted /boot");
1117            } else {
1118                log_it("...ignored cos it's a label :-)");
1119            }
1120        } else {
1121            asprintf(&command, "mount | grep -w \"%s\"", tmp);
1122            log_msg(3, "command = %s", command);
1123            if (run_program_and_log_output(command, 5)) {
1124                paranoid_free(g_boot_mountpt);
1125                asprintf(&g_boot_mountpt, tmp);
1126                asprintf(&tmp1,
1127                         "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1128                         g_boot_mountpt);
1129                log_it(tmp1);
1130                paranoid_free(tmp1);
1131
1132                asprintf(&tmp1, "mount %s", g_boot_mountpt);
1133                if (run_program_and_log_output(tmp1, 5)) {
1134                    paranoid_free(g_boot_mountpt);
1135                    asprintf(&g_boot_mountpt, " ");
1136                    log_msg(1, "Plan B");
1137                    if (!run_program_and_log_output("mount /boot", 5)) {
1138                        paranoid_free(g_boot_mountpt);
1139                        asprintf(&g_boot_mountpt, "/boot");
1140                        log_msg(1, "Plan B worked");
1141                    } else {
1142                        log_msg(1,
1143                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1144                    }
1145                }
1146                paranoid_free(tmp1);
1147            }
1148            paranoid_free(command);
1149        }
1150    }
1151    paranoid_free(tmp);
1152    log_msg(1, "Ended sub");
1153}
1154
1155
1156/**
1157 * If we mounted /boot earlier, unmount it.
1158 */
1159void unmount_boot_if_necessary()
1160{
1161    char *tmp;
1162
1163    log_msg(3, "starting");
1164    if (g_boot_mountpt[0]) {
1165        asprintf(&tmp, "umount %s", g_boot_mountpt);
1166        if (run_program_and_log_output(tmp, 5)) {
1167            log_it("WARNING - unable to unmount /boot");
1168        }
1169        paranoid_free(tmp);
1170    }
1171    log_msg(3, "leaving");
1172}
1173
1174
1175
1176/**
1177 * Write a line to a configuration file. Writes a line of the form,
1178 * @c label @c value.
1179 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1180 * @param label What to call this bit of data you're writing.
1181 * @param value The bit of data you're writing.
1182 * @return 0 for success, 1 for failure.
1183 */
1184int write_cfg_var(char *config_file, char *label, char *value)
1185{
1186    /*@ buffers ***************************************************** */
1187    char *command;
1188    char *tempfile;
1189    char *tmp;
1190
1191
1192    /*@ end vars *************************************************** */
1193    assert_string_is_neither_NULL_nor_zerolength(config_file);
1194    assert_string_is_neither_NULL_nor_zerolength(label);
1195    assert(value != NULL);
1196
1197    if (!does_file_exist(config_file)) {
1198        asprintf(&tmp, "(write_cfg_file) Cannot find %s config file",
1199                 config_file);
1200        log_to_screen(tmp);
1201        paranoid_free(tmp);
1202        return (1);
1203    }
1204    tempfile = call_program_and_get_last_line_of_output
1205             ("mktemp -q /tmp/mojo-jojo.blah.XXXXXX");
1206    if (does_file_exist(config_file)) {
1207        asprintf(&command, "grep -vx '%s .*' %s > %s",
1208                label, config_file, tempfile);
1209        paranoid_system(command);
1210        paranoid_free(command);
1211    }
1212    asprintf(&command, "echo \"%s %s\" >> %s", label, value, tempfile);
1213    paranoid_system(command);
1214    paranoid_free(command);
1215
1216    asprintf(&command, "mv -f %s %s", tempfile, config_file);
1217    paranoid_system(command);
1218    paranoid_free(command);
1219    unlink(tempfile);
1220    paranoid_free(tempfile);
1221    return (0);
1222}
1223
1224/**
1225 * Allocate or free important globals, depending on @p mal.
1226 * @param mal If TRUE, malloc; if FALSE, free.
1227 */
1228void do_libmondo_global_strings_thing(int mal)
1229{
1230    if (mal) {
1231        iamhere("Malloc'ing globals");
1232        g_erase_tmpdir_and_scratchdir = NULL;
1233        malloc_string(g_serial_string);
1234    } else {
1235        iamhere("Freeing globals");
1236        paranoid_free(g_boot_mountpt);
1237        paranoid_free(g_mondo_home);
1238        paranoid_free(g_tmpfs_mountpt);
1239        paranoid_free(g_erase_tmpdir_and_scratchdir);
1240        paranoid_free(g_serial_string);
1241        paranoid_free(g_magicdev_command);
1242    }
1243}
1244
1245/**
1246 * Allocate important globals.
1247 * @see do_libmondo_global_strings_thing
1248 */
1249void malloc_libmondo_global_strings(void)
1250{
1251    do_libmondo_global_strings_thing(1);
1252}
1253
1254/**
1255 * Free important globals.
1256 * @see do_libmondo_global_strings_thing
1257 */
1258void free_libmondo_global_strings(void)
1259{
1260    do_libmondo_global_strings_thing(0);
1261}
1262
1263
1264
1265/**
1266 * Stop @c magicdev if it's running.
1267 * The command used to start it is saved in @p g_magicdev_command.
1268 */
1269void stop_magicdev_if_necessary()
1270{
1271    g_magicdev_command = call_program_and_get_last_line_of_output
1272           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99");
1273    if (g_magicdev_command) {
1274        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1275        paranoid_system("killall magicdev");
1276    }
1277}
1278
1279
1280/**
1281 * Restart magicdev if it was stopped.
1282 */
1283void restart_magicdev_if_necessary()
1284{
1285    char *tmp = NULL;
1286
1287    if (!g_magicdev_command) {
1288        asprintf(&tmp, "%s &", g_magicdev_command);
1289        paranoid_system(tmp);
1290        paranoid_free(tmp);
1291    }
1292}
1293
1294/* @} - end of utilityGroup */
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