source: branches/2.2.10/mondo/src/common/libmondo-tools.c @ 2406

Last change on this file since 2406 was 2406, checked in by Bruno Cornec, 11 years ago

Remove useless conf files created under /tmp and never used

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File size: 39.4 KB
Line 
1/*
2   $Id: libmondo-tools.c 2406 2009-09-17 16:21:53Z bruno $
3*/
4
5
6/**
7 * @file
8 * Miscellaneous tools that didn't really fit anywhere else.
9 */
10
11#include "my-stuff.h"
12#include "mr_mem.h"
13#include "mondostructures.h"
14#include "lib-common-externs.h"
15#include "libmondo-tools.h"
16#include "libmondo-gui-EXT.h"
17#include "libmondo-files-EXT.h"
18#include "libmondo-fork-EXT.h"
19#include "libmondo-raid-EXT.h"
20#include "libmondo-devices-EXT.h"
21#include <sys/socket.h>
22#include <netdb.h>
23#include <stdlib.h>
24#include <netinet/in.h>
25#include <arpa/inet.h>
26#include <sys/utsname.h>
27
28/*@unused@*/
29//static char cvsid[] = "$Id: libmondo-tools.c 2406 2009-09-17 16:21:53Z bruno $";
30
31extern int g_tape_buffer_size_MB;
32extern bool g_text_mode;
33extern int g_currentY;
34extern int g_current_media_number;
35extern char *MONDO_LOGFILE;
36extern char *g_serial_string;
37
38/* Reference to global bkpinfo */
39extern struct s_bkpinfo *bkpinfo;
40
41/**
42 * @addtogroup globalGroup
43 * @{
44 */
45bool g_remount_cdrom_at_end,    ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
46 g_remount_floppy_at_end;       ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
47bool g_cd_recovery;             ///< TRUE if we're making an "autonuke" backup.
48double g_kernel_version;
49
50/**
51 * The place where /boot is mounted.
52 */
53char *g_boot_mountpt = NULL;
54
55/**
56 * The location of Mondo's home directory.
57 */
58char *g_mondo_home = NULL;
59
60/**
61 * The location where tmpfs is mounted, or "" if it's not mounted.
62char *g_tmpfs_mountpt = NULL;
63 */
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;
78
79extern bool am_I_in_disaster_recovery_mode(void);
80
81/*-----------------------------------------------------------*/
82
83
84/**
85 * @addtogroup utilityGroup
86 * @{
87 */
88/**
89 * Assertion handler. Prints a friendly message to the user,
90 * offering to ignore all, dump core, break to debugger,
91 * exit, or ignore. Intended to be used with an assert() macro.
92 *
93 * @param file The file in which the assertion triggered.
94 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
95 * @param line The line number of the assert() statement.
96 * @param exp The expression that failed (as a string).
97 */
98void _mondo_assert_fail(const char *file,
99                        const char *function, int line, const char *exp)
100{
101    static int ignoring_assertions = 0;
102    bool is_valid = TRUE;
103
104    log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
105           function);
106    if (ignoring_assertions) {
107        log_it("Well, the user doesn't care...");
108        return;
109    }
110    if (!g_text_mode)
111        newtSuspend();
112    printf("ASSERTION FAILED: `%s'\n", exp);
113    printf("\tat %s:%d in %s\n\n", file, line, function);
114    printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
115    do {
116        is_valid = TRUE;
117        switch (toupper(getchar())) {
118        case 'A':               // ignore (A)ll
119            ignoring_assertions = 1;
120            break;
121        case 'B':               // a(B)ort
122            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
123            raise(SIGABRT);
124            break;              /* "can't get here" */
125        case 'D':               // (D)ebug, aka asm("int 3")
126#ifdef __IA32__
127            __asm__ __volatile__("int $3"); // break to debugger
128#endif
129            break;
130        case 'E':               // (E)xit
131            fatal_error("Failed assertion -- see above for details");
132            break;              /* "can't get here" */
133        case 'I':               // (I)gnore
134            break;
135            /* These next two work as follows:
136               the `default' catches the user's invalid choice and says so;
137               the '\n' catches the newline on the end and prints the prompt again.
138             */
139        case '\n':
140            printf
141                ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
142            break;
143        default:
144            is_valid = FALSE;
145            printf("Invalid choice.\n");
146            break;
147        }
148    } while (!is_valid);
149
150    if (ignoring_assertions) {
151        log_it("Ignoring ALL assertions from now on.");
152    } else {
153        log_it("Ignoring assertion: %s", exp);
154    }
155
156    getchar();                  // skip \n
157
158    if (!g_text_mode)
159        newtResume();
160}
161
162/**
163 * Clean's up users' KDE desktops.
164 * @bug Details about this function are unknown.
165 */
166void clean_up_KDE_desktop_if_necessary(void)
167{
168    char *tmp = NULL;
169
170    mr_asprintf(tmp, "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } else { print $0;};}' $file.old  > $file ; fi ; done");
171    run_program_and_log_output(tmp, 5);
172    mr_free(tmp);
173}
174
175
176/**
177 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
178 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
179 *
180 * @param home_sz String to store the home directory ("" if it could not be found).
181 * @return 0 for success, nonzero for failure.
182 */
183int find_and_store_mondoarchives_home(char *home_sz)
184{
185    assert(home_sz != NULL);
186    strcpy(home_sz, MONDO_SHARE);
187    return (0);
188}
189
190
191char *get_architecture(void) {
192#ifdef __IA32__
193#   ifdef __X86_64__
194        return ("x86_64");
195#   else
196        return ("i386");
197#   endif
198#endif
199#ifdef __IA64__
200    return ("ia64");
201#endif
202    return ("unknown");
203}
204
205
206char *get_uname_m(void) {
207
208    struct utsname utsn;
209    char *tmp = NULL;
210
211    uname(&utsn);
212    mr_asprintf(tmp, "%s", utsn.machine);
213    return (tmp);
214}
215
216
217
218double get_kernel_version(void)
219{
220    char *p = NULL;
221    char *tmp = NULL;
222    double d;
223#ifdef __FreeBSD__
224    // JOSH - FIXME :)
225    d = 5.2;                    // :-)
226#else
227    tmp = call_program_and_get_last_line_of_output("uname -r");
228    p = strchr(tmp, '.');
229    if (p) {
230        p = strchr(++p, '.');
231        if (p) {
232            while (*p) {
233                *p = *(p + 1);
234                p++;
235            }
236        }
237    }
238    d = atof(tmp);
239    mr_free(tmp);
240#endif
241    log_msg(1, "g_kernel_version = %f", d);
242    return (d);
243}
244
245
246/**
247 * Get the current time.
248 * @return number of seconds since the epoch.
249 */
250long get_time()
251{
252    return (long) time((void *) 0);
253}
254
255
256/**
257 * Initialize a RAID volume structure, setting fields to zero. The
258 * actual hard drive is unaffected.
259 *
260 * @param raidrec The RAID volume structure to initialize.
261 * @note This function is system dependent.
262 */
263#ifdef __FreeBSD__
264void initialize_raidrec(struct vinum_volume *raidrec)
265{
266    int i, j;
267    raidrec->volname[0] = '\0';
268    raidrec->plexes = 0;
269    for (i = 0; i < 9; ++i) {
270        raidrec->plex[i].raidlevel = -1;
271        raidrec->plex[i].stripesize = 0;
272        raidrec->plex[i].subdisks = 0;
273        for (j = 0; j < 9; ++j) {
274            strcpy(raidrec->plex[i].sd[j].which_device, "");
275        }
276    }
277}
278#else
279void initialize_raidrec(struct raid_device_record *raidrec)
280{
281    assert(raidrec != NULL);
282    raidrec->raid_device[0] = '\0';
283    raidrec->raid_level = -9;
284    raidrec->persistent_superblock = 1;
285    raidrec->chunk_size = 64;
286    raidrec->parity = -1;
287    raidrec->data_disks.entries = 0;
288    raidrec->spare_disks.entries = 0;
289    raidrec->parity_disks.entries = 0;
290    raidrec->failed_disks.entries = 0;
291    raidrec->additional_vars.entries = 0;
292}
293#endif
294
295
296
297
298/**
299 * Insert modules that Mondo requires.
300 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
301 * @c msdosfs and @c ext2fs for FreeBSD.
302 */
303void insmod_crucial_modules(void)
304{
305#ifdef __FreeBSD__
306    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
307    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
308#else
309    system("modprobe -a msdos vfat loop &> /dev/null");
310#endif
311}
312
313
314/**
315 * Log a trace message to the trace file.
316 * @bug This function seems orphaned. Please remove.
317 */
318void log_trace(char *o)
319{
320    /*@ pointers **************************************************** */
321    FILE *fout;
322
323    /*@ buffers ***************************************************** */
324    char output[MAX_STR_LEN];
325
326    /*@ int    ****************************************************** */
327    int i;
328
329    /*@ end vars *************************************************** */
330
331    if (o[0] == '\0') {
332        return;
333    }
334    strcpy(output, o);
335    i = (int) strlen(output);
336    if (i <= 0) {
337        return;
338    }
339    if (output[i - 1] < 32) {
340        output[i - 1] = '\0';
341    }
342    if (g_text_mode) {
343        printf("%s\n", output);
344    }
345
346    fout = fopen(MONDO_TRACEFILE, "a");
347    if (fout) {
348        fprintf(fout, "%s\n", output);
349        paranoid_fclose(fout);
350    } else {
351        log_OS_error("Cannot write to tracefile");
352    }
353}
354
355
356
357
358
359/**
360 * Finish configuring the backup information structure. Call this function
361 * to set the parameters that depend on those that can be given on the command
362 * line.
363 *
364 * @param bkpinfo The backup information structure. Fields modified/used:
365 * - Used: @c bkpinfo->backup_data
366 * - Used: @c bkpinfo->backup_media_type
367 * - Used: @c bkpinfo->cdrw_speed
368 * - Used: @c bkpinfo->compression_level
369 * - Used: @c bkpinfo->include_paths
370 * - Used: @c bkpinfo->prefix
371 * - Used: @c bkpinfo->isodir
372 * - Used: @c bkpinfo->manual_cd_tray
373 * - Used: @c bkpinfo->make_cd_use_lilo
374 * - Used: @c bkpinfo->media_device
375 * - Used: @c bkpinfo->netfs_mount
376 * - Used: @c bkpinfo->nonbootable_backup
377 * - Used: @c bkpinfo->scratchdir
378 * - Used: @c bkpinfo->tmpdir
379 * - Used: @c bkpinfo->use_lzo
380 * - Modified: @c bkpinfo->call_before_iso
381 * - Modified: @c bkpinfo->call_make_iso
382 * - Modified: @c bkpinfo->optimal_set_size
383 * - Modified: @c bkpinfo->zip_exe
384 * - Modified: @c bkpinfo->zip_suffix
385 *
386 * @return number of errors, or 0 for success.
387 * @note Also creates directories that are specified in the @c bkpinfo structure but
388 * do not exist.
389 */
390int post_param_configuration()
391{
392    char *extra_cdrom_params = NULL;
393    char *mondo_mkisofs_sz = NULL;
394    char *command = NULL;
395    char *hostname = NULL;
396    char *ip_address = NULL;
397    int retval = 0;
398    char *colon;
399    char *cdr_exe = NULL;
400    char *tmp = NULL;
401    char *p = NULL;
402    char *call_before_iso_user = NULL;
403    char *iso_dev = NULL;
404    char *iso_mnt = NULL;
405    char *iso_tmp = NULL;
406    char *iso_path = NULL;
407
408    assert(bkpinfo != NULL);
409
410    if (!bkpinfo->tmpdir) {
411        fatal_error("Tmpdir set to NULL !");
412    }
413
414    bkpinfo->optimal_set_size =
415        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
416        1024;
417
418    if (strlen(bkpinfo->tmpdir) < 2) {
419        log_it("tmpdir is blank/missing");
420        retval++;
421    }
422
423    log_msg(1, "Foo");
424    if (bkpinfo->backup_media_type == tape) {
425        log_msg(1, "Bar");
426        if (bkpinfo->media_device == NULL) {
427            return(1);
428        }
429        mr_asprintf(tmp, "mt -f %s status", bkpinfo->media_device);
430        log_msg(1, "tmp = '%s'", tmp);
431        if (run_program_and_log_output(tmp, 3)) {
432            mr_free(tmp);
433            fatal_error
434                ("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.");
435        }
436        mr_free(tmp);
437    }
438    if (bkpinfo->scratchdir) {
439        make_hole_for_dir(bkpinfo->scratchdir);
440        chmod(bkpinfo->scratchdir, 0700);
441    } else {
442        fatal_error("Scratchdir set to NULL !");
443    }
444    if (bkpinfo->backup_media_type == iso)
445        make_hole_for_dir(bkpinfo->isodir);
446
447    run_program_and_log_output("uname -a", 5);
448    run_program_and_log_output("cat /etc/*-release", 5);
449    run_program_and_log_output("cat /etc/*issue*", 5);
450#ifdef __FreeBSD__
451#else
452    run_program_and_log_output("cat /proc/cpuinfo", 5);
453    run_program_and_log_output
454        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
455         5);
456#endif
457
458    if (bkpinfo->use_lzo) {
459        mr_asprintf(bkpinfo->zip_exe, "lzop");
460        mr_asprintf(bkpinfo->zip_suffix, "lzo");
461    } else if (bkpinfo->use_gzip) {
462        mr_asprintf(bkpinfo->zip_exe, "gzip");
463        mr_asprintf(bkpinfo->zip_suffix, "gz");
464    } else if (bkpinfo->use_lzma) {
465        mr_asprintf(bkpinfo->zip_exe, "lzma");
466        mr_asprintf(bkpinfo->zip_suffix, "lzma");
467    } else if (bkpinfo->compression_level != 0) {
468        mr_asprintf(bkpinfo->zip_exe, "bzip2");
469        mr_asprintf(bkpinfo->zip_suffix, "bz2");
470    } else {
471        mr_asprintf(bkpinfo->zip_exe, "none");
472        mr_asprintf(bkpinfo->zip_suffix, "");
473    }
474
475// DVD
476
477    if (bkpinfo->backup_media_type == dvd) {
478        tmp = find_home_of_exe("growisofs");
479        if (tmp) {
480            mr_asprintf(cdr_exe, "growisofs");
481        }                       // unlikely to be used
482        else {
483            mr_free(tmp);
484            fatal_error("Please install growisofs.");
485        }
486        mr_free(tmp);
487
488        if (bkpinfo->nonbootable_backup) {
489            mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
490        } else if
491#ifdef __FreeBSD__
492            (TRUE)
493#else
494            (bkpinfo->make_cd_use_lilo)
495#endif
496#ifdef __IA64__
497    {
498        mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
499    }
500#else
501    {
502        mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
503    }
504#endif
505        else
506        {
507            mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
508        }
509        if (bkpinfo->manual_cd_tray) {
510            paranoid_free(mondo_mkisofs_sz);
511            fatal_error("Manual CD tray + DVD not supported yet.");
512            // -m isn't supported by growisofs, BTW...
513        } else {
514            if (bkpinfo->media_device == NULL) {
515                return(1);
516            }
517            mr_free(bkpinfo->call_make_iso);
518            mr_asprintf(bkpinfo->call_make_iso, "%s %s -Z %s . 2>> _ERR_", mondo_mkisofs_sz, "", bkpinfo->media_device);
519            paranoid_free(mondo_mkisofs_sz);
520        }
521        if (getenv ("SUDO_COMMAND")) {
522            mr_asprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
523            tmp = call_program_and_get_last_line_of_output(command);
524            if (!strcmp(tmp, "1")) {
525                mr_free(command);
526                mr_free(tmp);
527                popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
528                fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
529            }       
530            mr_free(command);
531            mr_free(tmp);
532        }
533        log_msg(2, "call_make_iso (DVD res) is ... %s", bkpinfo->call_make_iso);
534    }                           // end of DVD code
535
536// CD-R or CD-RW
537    if (bkpinfo->backup_media_type == cdrw
538        || bkpinfo->backup_media_type == cdr) {
539        if (!bkpinfo->manual_cd_tray) {
540            mr_asprintf(extra_cdrom_params, "-waiti ");
541        }
542        if (bkpinfo->backup_media_type == cdrw) {
543            mr_asprintf(extra_cdrom_params, "blank=fast ");
544        }
545        tmp = find_home_of_exe("cdrecord");
546        if (tmp) {
547            mr_asprintf(cdr_exe, "cdrecord");
548        } else {
549            mr_free(tmp);
550            tmp = find_home_of_exe("dvdrecord");
551            if (tmp) {
552                mr_asprintf(cdr_exe, "dvdrecord");
553            } else {
554                mr_free(tmp);
555                fatal_error("Please install either cdrecord or dvdrecord.");
556            }
557        }
558        mr_free(tmp);
559
560        if (bkpinfo->nonbootable_backup) {
561            mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
562        } else if
563#ifdef __FreeBSD__
564            (TRUE)
565#else
566            (bkpinfo->make_cd_use_lilo)
567#endif
568#ifdef __IA64__
569    {
570        mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
571    }
572#else
573    {
574        mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
575    }
576#endif
577        else {
578            mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
579        }
580
581        mr_free(bkpinfo->call_make_iso);
582        if (bkpinfo->manual_cd_tray) {
583            if (bkpinfo->call_before_iso == NULL) {
584                mr_asprintf(bkpinfo->call_before_iso, "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_", mondo_mkisofs_sz, bkpinfo->tmpdir);
585            } else {
586                mr_asprintf(call_before_iso_user, "%s", bkpinfo->call_before_iso);
587                mr_free(bkpinfo->call_before_iso);
588                mr_asprintf(bkpinfo->call_before_iso, "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )", mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
589                mr_free(call_before_iso_user);
590            }
591            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
592            if (bkpinfo->media_device == NULL) {
593                return(1);
594            }
595            mr_asprintf(bkpinfo->call_make_iso, "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS, cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject", extra_cdrom_params, bkpinfo->media_device, bkpinfo->cdrw_speed, bkpinfo->tmpdir);
596        } else {
597            mr_asprintf(bkpinfo->call_make_iso, "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -", mondo_mkisofs_sz, cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject", extra_cdrom_params, bkpinfo->media_device, bkpinfo->cdrw_speed);
598        }
599        mr_free(cdr_exe);
600        paranoid_free(mondo_mkisofs_sz);
601        paranoid_free(extra_cdrom_params);
602    }                           // end of CD code
603
604    if (bkpinfo->backup_media_type == iso) {
605
606/* Patch by Conor Daly <conor.daly@met.ie>
607 * 23-june-2004
608 * Break up isodir into iso_mnt and iso_path
609 * These will be used along with iso-dev at restore time
610 * to locate the ISOs where ever they're mounted
611 */
612
613        log_it("isodir = %s", bkpinfo->isodir);
614        mr_asprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
615        log_it("command = %s", command);
616        iso_dev = call_program_and_get_last_line_of_output(command);
617        log_it("res of it = %s", iso_dev);
618        mr_free(command);
619
620        mr_asprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
621        mr_free(iso_dev);
622
623        log_it("command = %s", command);
624        iso_mnt = call_program_and_get_last_line_of_output(command);
625        log_it("res of it = %s", iso_mnt);
626        mr_free(command);
627
628        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
629        mr_asprintf(iso_tmp, "%s", bkpinfo->isodir);
630        if (strlen(iso_tmp) < strlen(iso_mnt)) {
631            mr_asprintf(iso_path, "%s", "");
632        } else {
633            mr_asprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
634        }
635        mr_free(iso_mnt);
636        mr_free(iso_tmp);
637
638        log_it("isodir: %s", iso_path);
639        mr_free(iso_path);
640
641        log_it("iso-prefix: %s",  bkpinfo->prefix);
642
643/* End patch */
644    }                           // end of iso code
645
646    if (bkpinfo->backup_media_type == netfs) {
647        if (bkpinfo->netfs_mount) {
648            mr_asprintf(hostname, "%s", bkpinfo->netfs_mount);
649        } else {
650            log_it("netfs_mount is NULL");
651            retval++;
652            mr_asprintf(hostname, "");
653        }
654        colon = strchr(hostname, ':');
655        if (!colon) {
656            log_it("netfs mount doesn't have a colon in it");
657            retval++;
658        } else {
659            struct hostent *hent;
660
661            *colon = '\0';
662            hent = gethostbyname(hostname);
663            if (!hent) {
664                log_it("Can't resolve Network mount (%s): %s", hostname, hstrerror(h_errno));
665                retval++;
666            } else {
667                mr_asprintf(ip_address, "%s", inet_ntoa((struct in_addr) *((struct in_addr *) hent->h_addr)));
668                mr_strcat(ip_address, strchr(bkpinfo->netfs_mount, ':'));
669                mr_free(bkpinfo->netfs_mount);
670                bkpinfo->netfs_mount = ip_address;
671            }
672        }
673        mr_free(hostname);
674        store_netfs_config();
675    }
676
677    log_it("Finished processing incoming params");
678    if (retval) {
679        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
680    }
681    if (bkpinfo->include_paths == NULL) {
682        mr_asprintf(p, "/");
683        bkpinfo->include_paths = p;
684    }
685    g_backup_media_type = bkpinfo->backup_media_type;
686    return (retval);
687}
688
689
690
691/**
692 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
693 * Seeds the random-number generator, loads important modules, checks the sanity
694 * of the user's Linux distribution, and deletes logfile.
695 * @param bkpinfo The backup information structure. Will be initialized.
696 * @return number of errors (0 for success)
697 */
698int pre_param_configuration()
699{
700    int res = 0;
701    char *tmp = NULL;
702
703    make_hole_for_dir(MNT_CDROM);
704    assert(bkpinfo != NULL);
705    srandom((unsigned long) (time(NULL)));
706    insmod_crucial_modules();
707    if (bkpinfo->disaster_recovery) {
708        if (!does_nonMS_partition_exist()) {
709            fatal_error("I am in disaster recovery mode\nPlease don't run mondoarchive.");
710        }
711    }
712
713    unlink(MONDO_TRACEFILE);
714    mr_asprintf(tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
715    run_program_and_log_output(tmp, FALSE);
716    paranoid_free(tmp);
717    if (find_and_store_mondoarchives_home(g_mondo_home)) {
718        fprintf(stderr, "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");
719        res++;
720        return (res);
721    }
722    res += some_basic_system_sanity_checks();
723    if (res) {
724        log_it("Your distribution did not pass Mondo's sanity test.");
725    }
726    g_current_media_number = 1;
727    return (res);
728}
729
730void setup_tmpdir(char *path) {
731
732    char *tmp = NULL;
733    char *p = NULL;
734
735    if ((bkpinfo->tmpdir != NULL) && (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL)) {
736        /* purging a potential old tmpdir */
737        log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
738        mr_asprintf(tmp,"rm -Rf %s",bkpinfo->tmpdir);
739        mr_free(bkpinfo->tmpdir);
740        (void)system(tmp);
741        mr_free(tmp);
742    }
743
744    if (path != NULL) {
745        mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", path);
746    } else if (getenv("TMPDIR")) {
747        mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
748    } else if (getenv("TMP")) {
749        mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
750    } else {
751        mr_asprintf(tmp, "/tmp/mondo.tmp.XXXXXX");
752    }
753    p = mkdtemp(tmp);
754    if (p == NULL) {
755        log_it("Failed to create global tmp directory %s for Mondo.",tmp);
756        mr_free(tmp);
757        finish(-1);
758    }
759
760    bkpinfo->tmpdir = p;
761    log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
762}
763
764/* Free all memory allocated into bkpinfo */
765void mr_free_bkpinfo() {
766
767    log_msg(1, "Freeing bkpinfo");
768    mr_free(bkpinfo->media_device);
769    mr_free(bkpinfo->boot_device);
770    mr_free(bkpinfo->zip_exe);
771    mr_free(bkpinfo->zip_suffix);
772    mr_free(bkpinfo->image_devs);
773    mr_free(bkpinfo->isodir);
774    mr_free(bkpinfo->prefix);
775    mr_free(bkpinfo->scratchdir);
776    mr_free(bkpinfo->tmpdir);
777    mr_free(bkpinfo->include_paths);
778    mr_free(bkpinfo->exclude_paths);
779    mr_free(bkpinfo->restore_path);
780    mr_free(bkpinfo->call_before_iso);
781    mr_free(bkpinfo->call_make_iso);
782    mr_free(bkpinfo->call_burn_iso);
783    mr_free(bkpinfo->call_after_iso);
784    mr_free(bkpinfo->kernel_path);
785    mr_free(bkpinfo->netfs_mount);
786    mr_free(bkpinfo->netfs_remote_dir);
787    mr_free(bkpinfo->netfs_user);
788    mr_free(bkpinfo->netfs_proto);
789    mr_free(bkpinfo->postnuke_tarball);
790
791    /* Then free the structure */
792    mr_free(bkpinfo);
793}
794
795/**
796 * Reset all fields of the backup information structure to a sensible default.
797 * @param bkpinfo The @c bkpinfo to reset.
798 */
799void init_bkpinfo()
800{
801    int i;
802    log_msg(1, "Initializing bkpinfo");
803    bkpinfo = (struct s_bkpinfo *)mr_malloc(sizeof(struct s_bkpinfo));
804
805    /* Initialized in same order as in the structure declaration to detect errors more easily */
806    bkpinfo->media_device = NULL;
807    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
808        bkpinfo->media_size[i] = -1;
809    }
810    bkpinfo->boot_loader = '\0';
811    bkpinfo->boot_device = NULL;
812    bkpinfo->zip_exe = NULL;
813    bkpinfo->zip_suffix = NULL;
814    bkpinfo->image_devs = NULL;
815    bkpinfo->compression_level = 3;
816    bkpinfo->use_lzo = FALSE;
817    bkpinfo->use_gzip = FALSE;
818    bkpinfo->use_lzma = FALSE;
819    bkpinfo->verify_data = FALSE;
820    bkpinfo->backup_data = FALSE;
821    bkpinfo->restore_data = FALSE;
822    bkpinfo->use_star = FALSE;
823    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
824    bkpinfo->disaster_recovery = (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
825    if (bkpinfo->disaster_recovery) {
826        mr_asprintf(bkpinfo->isodir, "%s", "/");
827    } else {
828        mr_asprintf(bkpinfo->isodir, "%s", MONDO_CACHE);
829    }
830    mr_asprintf(bkpinfo->prefix, "%s", STD_PREFIX);
831    bkpinfo->scratchdir = NULL;     // Really setup after
832    bkpinfo->tmpdir = NULL;         // Really setup after
833    bkpinfo->optimal_set_size = 0;
834    bkpinfo->backup_media_type = none;
835    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
836    bkpinfo->include_paths = NULL;
837    bkpinfo->exclude_paths = NULL;
838    bkpinfo->restore_path = NULL;
839    bkpinfo->call_before_iso = NULL;
840    bkpinfo->call_make_iso = NULL;
841    bkpinfo->call_burn_iso = NULL;
842    bkpinfo->call_after_iso = NULL;
843    bkpinfo->kernel_path = NULL;
844    bkpinfo->netfs_mount = NULL;
845    bkpinfo->netfs_remote_dir = NULL;
846    bkpinfo->netfs_user = NULL;
847    bkpinfo->netfs_proto = NULL;
848    bkpinfo->postnuke_tarball = NULL;
849    bkpinfo->wipe_media_first = FALSE;
850    bkpinfo->differential = 0;
851    bkpinfo->please_dont_eject = FALSE;
852    bkpinfo->cdrw_speed = 0;
853    bkpinfo->manual_cd_tray = FALSE;
854    bkpinfo->nonbootable_backup = FALSE;
855    bkpinfo->make_cd_use_lilo = FALSE;
856    bkpinfo->use_obdr = FALSE;
857    bkpinfo->restore_mode = interactive;
858
859    setup_tmpdir(NULL);
860    sensibly_set_scratchdir();
861}
862
863
864
865
866/**
867 * Get the remaining free space (in MB) on @p partition.
868 * @param partition The partition to check free space on (either a device or a mountpoint).
869 * @return The free space on @p partition, in MB.
870 */
871long free_space_on_given_partition(char *partition)
872{
873    char *out_sz = NULL;
874    char *command = NULL;
875    long res;
876
877    assert_string_is_neither_NULL_nor_zerolength(partition);
878
879    mr_asprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
880    if (system(command)) {
881        mr_free(command);
882        return (-1);
883    }                           // partition does not exist
884    mr_free(command);
885
886    mr_asprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4", partition);
887    out_sz = call_program_and_get_last_line_of_output(command);
888    mr_free(command);
889
890    if (strlen(out_sz) == 0) {
891        mr_free(out_sz);
892        return (-1);
893    }                           // error within df, probably
894    res = atol(out_sz);
895    mr_free(out_sz);
896    return (res);
897}
898
899
900
901/**
902 * Check the user's system for sanity. Checks performed:
903 * - make sure user has enough RAM (32mb required, 64mb recommended)
904 * - make sure user has enough free space in @c /
905 * - check kernel for ramdisk support
906 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
907 * - make sure CD-ROM is unmounted
908 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
909 *
910 * @return number of problems with the user's setup (0 for success)
911 */
912int some_basic_system_sanity_checks()
913{
914
915    /*@ buffers ************ */
916    char *tmp = NULL;
917
918    /*@ int's *************** */
919    int retval = 0;
920
921    mvaddstr_and_log_it(g_currentY, 0,
922                        "Checking sanity of your Linux distribution");
923#ifndef __FreeBSD__
924    if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
925        && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
926        log_it("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
927        run_program_and_log_output("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
928    }
929    tmp = call_program_and_get_last_line_of_output("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2");
930    if (atol(tmp) < 35000) {
931        retval++;
932        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
933    }
934    if (atol(tmp) < 66000) {
935        log_to_screen("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
936    }
937    mr_free(tmp);
938#endif
939
940    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
941        retval++;
942        log_to_screen
943            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
944        fatal_error
945            ("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. :)");
946    }
947#ifndef __FreeBSD__
948    if (run_program_and_log_output
949        ("grep ramdisk /proc/devices", FALSE)) {
950        /* Some SuSE have ramdisk as modules, so insert it first, then test again */
951        run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
952        if (run_program_and_log_output
953            ("grep ramdisk /proc/devices", FALSE)) {
954            if (!ask_me_yes_or_no
955                ("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?"))
956            {
957                //          retval++;
958                log_to_screen
959                    ("It looks as if your kernel lacks ramdisk and initrd support.");
960                log_to_screen
961                    ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
962            }
963        }
964    }
965#endif
966    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
967    retval += whine_if_not_found("mkisofs");
968    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
969        retval += whine_if_not_found("cdrecord");
970    }
971    retval += whine_if_not_found("bzip2");
972    retval += whine_if_not_found("gzip");
973    retval += whine_if_not_found("awk");
974    retval += whine_if_not_found("md5sum");
975    retval += whine_if_not_found("strings");
976    retval += whine_if_not_found("mindi");
977    retval += whine_if_not_found("buffer");
978
979    // abort if Windows partition but no ms-sys and parted
980    if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
981        log_to_screen("I think you have a Windows 9x partition.");
982        retval += whine_if_not_found("parted");
983    }
984
985    tmp = find_home_of_exe("cmp");
986    if (!tmp) {
987        mr_free(tmp);
988        tmp = find_home_of_exe("true");
989        if (!tmp) {
990            retval += whine_if_not_found("cmp");
991        } else {
992            log_to_screen("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
993            if (run_program_and_log_output("cp -f `which true` /usr/bin/cmp", 0)) {
994                mr_free(tmp);
995                fatal_error("Failed to create dummy 'cmp' file.");
996            }
997        }
998    }
999    mr_free(tmp);
1000
1001    run_program_and_log_output("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1002    tmp = call_program_and_get_last_line_of_output("mount | grep -E \"cdr(om|w)\"");
1003    if (strcmp("", tmp)) {
1004        if (strstr(tmp, "autofs")) {
1005            log_to_screen
1006                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1007            log_to_screen
1008                ("if a CD actually is inserted. If a CD is inserted, please");
1009            log_to_screen("eject it. Thank you.");
1010            log_it
1011                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1012        } else
1013            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1014            retval++;
1015            mr_free(tmp);
1016            fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
1017        }
1018    }
1019    mr_free(tmp);
1020
1021    run_program_and_log_output("cat /etc/fstab", 5);
1022#ifdef __FreeBSD__
1023    run_program_and_log_output("vinum printconfig", 5);
1024#else
1025    run_program_and_log_output("cat /etc/raidtab", 5);
1026#endif
1027
1028    if (run_program_and_log_output("mindi -V", 1)) {
1029        log_to_screen("Could not ascertain mindi's version number.");
1030        log_to_screen
1031            ("You have not installed Mondo and/or Mindi properly.");
1032        log_to_screen("Please uninstall and reinstall them both.");
1033        fatal_error("Please reinstall Mondo and Mindi.");
1034    }
1035    mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1036    if (run_program_and_log_output(tmp, 5)) {
1037        mr_free(tmp);
1038        mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1039        log_to_screen(tmp);
1040        log_to_screen
1041            ("Please run that command by hand and examine /var/log/mindi.log");
1042        log_to_screen
1043            ("for more information. Perhaps your /etc/fstab file is insane.");
1044        log_to_screen
1045            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1046        retval++;
1047    }
1048    mr_free(tmp);
1049
1050    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1051        && !does_file_exist("/etc/raidtab")) {
1052        log_to_screen
1053            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1054        create_raidtab_from_mdstat("/etc/raidtab");
1055    }
1056
1057    if (retval) {
1058        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1059    } else {
1060        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1061    }
1062    return (retval);
1063}
1064
1065/**
1066 * Retrieve the line containing @p label from the config file.
1067 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1068 * @param label What to read from the file.
1069 * @param value Where to put it.
1070 * @return 0 for success, 1 for failure.
1071 */
1072char *read_cfg_var(char *config_file, char *label)
1073{
1074    /*@ buffer ****************************************************** */
1075    char *command = NULL;
1076    char *value = NULL;
1077
1078    /*@ end vars *************************************************** */
1079
1080    assert_string_is_neither_NULL_nor_zerolength(config_file);
1081    assert_string_is_neither_NULL_nor_zerolength(label);
1082    if (!does_file_exist(config_file)) {
1083        log_to_screen("(read_cfg_var) Cannot find %s config file", config_file);
1084        return (NULL);
1085        /* BERLIOS: not sure the usage of this one ?
1086    } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1087        log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1088        return (0);
1089        */
1090    } else {
1091        mr_asprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1092        value = call_program_and_get_last_line_of_output(command);
1093        mr_free(command);
1094
1095        if (strlen(value) == 0) {
1096            return (NULL);
1097        } else {
1098            return (value);
1099        }
1100    }
1101}
1102
1103
1104
1105/**
1106 * Remount @c supermount if it was unmounted earlier.
1107 */
1108void remount_supermounts_if_necessary()
1109{
1110    if (g_remount_cdrom_at_end) {
1111        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1112    }
1113    if (g_remount_floppy_at_end) {
1114        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1115    }
1116}
1117
1118/**
1119 * Unmount @c supermount if it's mounted.
1120 */
1121void unmount_supermounts_if_necessary()
1122{
1123    if (run_program_and_log_output
1124        ("mount | grep cdrom | grep super", FALSE) == 0) {
1125        g_remount_cdrom_at_end = TRUE;
1126        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1127    }
1128    if (run_program_and_log_output
1129        ("mount | grep floppy | grep super", FALSE) == 0) {
1130        g_remount_floppy_at_end = TRUE;
1131        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1132    }
1133}
1134
1135/**
1136 * Whether we had to stop autofs (if so, restart it at end).
1137 */
1138bool g_autofs_stopped = FALSE;
1139
1140/**
1141 * Path to the autofs initscript ("" if none exists).
1142 */
1143char g_autofs_exe[MAX_STR_LEN];
1144
1145/**
1146 * Autofs initscript in Xandros Linux distribution.
1147 */
1148#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1149
1150/**
1151 * Autofs initscript in most Linux distributions.
1152 */
1153#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1154
1155/**
1156 * If autofs is mounted, stop it (restart at end).
1157 */
1158void stop_autofs_if_necessary()
1159{
1160    char *tmp = NULL;
1161
1162    g_autofs_exe[0] = '\0';
1163    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1164        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1165    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1166        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1167    }
1168
1169    if (!g_autofs_exe[0]) {
1170        log_msg(3, "No autofs detected.");
1171    } else {
1172        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1173        // FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1174        mr_asprintf(tmp, "%s stop", g_autofs_exe);
1175        if (run_program_and_log_output(tmp, 2)) {
1176            log_it("Failed to stop autofs - I assume it wasn't running");
1177        } else {
1178            g_autofs_stopped = TRUE;
1179            log_it("Stopped autofs OK");
1180        }
1181        mr_free(tmp);
1182    }
1183}
1184
1185/**
1186 * If autofs was stopped earlier, restart it.
1187 */
1188void restart_autofs_if_necessary()
1189{
1190    char *tmp = NULL;
1191
1192    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1193        log_msg(3, "No autofs detected.");
1194        return;
1195    }
1196    mr_asprintf(tmp, "%s start", g_autofs_exe);
1197    if (run_program_and_log_output(tmp, 2)) {
1198        log_it("Failed to start autofs");
1199    } else {
1200        g_autofs_stopped = FALSE;
1201        log_it("Started autofs OK");
1202    }
1203    mr_free(tmp);
1204}
1205
1206
1207/**
1208 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1209 */
1210void mount_boot_if_necessary() {
1211    char *tmp = NULL;
1212    char *command = NULL;
1213
1214    log_msg(1, "Started sub");
1215    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1216    g_boot_mountpt[0] = '\0';
1217    log_msg(4, "Done. Great. Seeting command to something");
1218    mr_asprintf(command, "%s", "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[   ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1219    log_msg(4, "Cool. Command = '%s'", command);
1220    tmp = call_program_and_get_last_line_of_output(command);
1221    mr_free(command);
1222
1223    log_msg(4, "tmp = '%s'", tmp);
1224    log_it("/boot is at %s according to /etc/fstab", tmp);
1225    mr_asprintf(command, "mount | grep -Ew '/boot'");
1226    mr_free(tmp);
1227    tmp = call_program_and_get_last_line_of_output(command);
1228    mr_free(command);
1229
1230    if (!strcmp(tmp,"")) {
1231        if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1232            if (!run_program_and_log_output("mount /boot", 5)) {
1233                strcpy(g_boot_mountpt, "/boot");
1234                log_msg(1, "Mounted /boot");
1235            } else {
1236                log_it("...ignored cos it's a label or uuid :-)");
1237            }
1238        } else {
1239            mr_asprintf(command, "mount | grep -E '^%s'", tmp);
1240            log_msg(3, "command = %s", command);
1241            if (run_program_and_log_output(command, 5)) {
1242                strcpy(g_boot_mountpt, tmp);
1243                mr_free(tmp);
1244                log_it("%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1245
1246                mr_asprintf(tmp, "mount %s", g_boot_mountpt);
1247                if (run_program_and_log_output(tmp, 5)) {
1248                    g_boot_mountpt[0] = '\0';
1249                    log_msg(1, "Plan B");
1250                    if (!run_program_and_log_output("mount /boot", 5)) {
1251                        strcpy(g_boot_mountpt, "/boot");
1252                        log_msg(1, "Plan B worked");
1253                    } else {
1254                        log_msg(1,
1255                            "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1256                    }
1257                }
1258            }
1259            mr_free(command);
1260        }
1261    }
1262    mr_free(tmp);
1263    log_msg(1, "Ended sub");
1264}
1265
1266
1267/**
1268 * If we mounted /boot earlier, unmount it.
1269 */
1270void unmount_boot_if_necessary()
1271{
1272    char *tmp = NULL;
1273
1274    log_msg(3, "starting");
1275    if (g_boot_mountpt[0]) {
1276        mr_asprintf(tmp, "umount %s", g_boot_mountpt);
1277        if (run_program_and_log_output(tmp, 5)) {
1278            log_it("WARNING - unable to unmount /boot");
1279        }
1280        mr_free(tmp);
1281    }
1282    log_msg(3, "leaving");
1283}
1284
1285
1286
1287/**
1288 * Write a line to a configuration file. Writes a line of the form,
1289 * @c label @c value.
1290 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1291 * @param label What to call this bit of data you're writing.
1292 * @param value The bit of data you're writing.
1293 * @return 0 for success, 1 for failure.
1294 */
1295int write_cfg_var(char *config_file, char *label, char *value)
1296{
1297    /*@ buffers ***************************************************** */
1298    char *command = NULL;
1299    char *tempfile = NULL;
1300
1301
1302    /*@ end vars *************************************************** */
1303    assert_string_is_neither_NULL_nor_zerolength(config_file);
1304    assert_string_is_neither_NULL_nor_zerolength(label);
1305    assert(value != NULL);
1306    if (!does_file_exist(config_file)) {
1307        log_to_screen("(write_cfg_file) Cannot find %s config file", config_file);
1308        return (1);
1309    }
1310    mr_asprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1311    if (does_file_exist(config_file)) {
1312        mr_asprintf(command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1313        paranoid_system(command);
1314        mr_free(command);
1315    }
1316    mr_asprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1317    paranoid_system(command);
1318    mr_free(command);
1319
1320    mr_asprintf(command, "mv -f %s %s", tempfile, config_file);
1321    paranoid_system(command);
1322    mr_free(command);
1323    unlink(tempfile);
1324    mr_free(tempfile);
1325    return (0);
1326}
1327
1328
1329/**
1330 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1331 * information to the logfile.
1332 */
1333void standard_log_debug_msg(int debug_level, const char *szFile, const char *szFunction, int nLine, const char *fmt, ...) {
1334
1335    va_list args;
1336    static int depth = 0;
1337    FILE *fout;
1338
1339    if (depth > 5) {
1340        depth--;
1341        return;
1342    }
1343    depth++;
1344
1345    if (debug_level <= g_loglevel) {
1346        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1347            return;
1348        }
1349
1350        // add tabs to distinguish log levels
1351        if (debug_level > 0) {
1352            fprintf(fout, "DBG%d: ", debug_level);
1353            if (getpid() == g_main_pid)
1354                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1355            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1356                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1357            else
1358                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1359        } else {
1360            fprintf(fout, "INFO: ");
1361        }
1362        va_start(args, fmt);
1363        vfprintf(fout, fmt, args);
1364        va_end(args);
1365
1366        // do not slow down the progran if standard debug level
1367        // must be enabled: if no flush, the log won't be up-to-date if there
1368        // is a segfault
1369        //if (g_dwDebugLevel != 1)
1370
1371        fprintf(fout, "\n");
1372        paranoid_fclose(fout);
1373    }
1374    depth--;
1375}
1376
1377/**
1378 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1379 */
1380void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1381                       ...) = standard_log_debug_msg;
1382
1383
1384/**
1385 * Allocate or free important globals, depending on @p mal.
1386 * @param mal If TRUE, malloc; if FALSE, free.
1387 */
1388void do_libmondo_global_strings_thing(int mal)
1389{
1390    if (mal) {
1391        malloc_string(g_boot_mountpt);
1392        malloc_string(g_mondo_home);
1393        malloc_string(g_magicdev_command);
1394    } else {
1395        paranoid_free(g_boot_mountpt);
1396        paranoid_free(g_mondo_home);
1397        paranoid_free(g_magicdev_command);
1398
1399        mr_free(g_serial_string);
1400    }
1401}
1402
1403/**
1404 * Allocate important globals.
1405 * @see do_libmondo_global_strings_thing
1406 */
1407void malloc_libmondo_global_strings(void)
1408{
1409    do_libmondo_global_strings_thing(1);
1410}
1411
1412/**
1413 * Free important globals.
1414 * @see do_libmondo_global_strings_thing
1415 */
1416void free_libmondo_global_strings(void)
1417{
1418    do_libmondo_global_strings_thing(0);
1419}
1420
1421
1422
1423/**
1424 * Stop @c magicdev if it's running.
1425 * The command used to start it is saved in @p g_magicdev_command.
1426 */
1427void stop_magicdev_if_necessary() {
1428
1429    char *tmp = NULL;
1430
1431    tmp = call_program_and_get_last_line_of_output("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99");
1432
1433    strcpy(g_magicdev_command, tmp);
1434    mr_free(tmp);
1435
1436    if (g_magicdev_command[0]) {
1437        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1438        paranoid_system("killall magicdev");
1439    }
1440}
1441
1442
1443/**
1444 * Restart magicdev if it was stopped.
1445 */
1446void restart_magicdev_if_necessary()
1447{
1448    char *tmp = NULL;
1449
1450    if (g_magicdev_command && g_magicdev_command[0]) {
1451        mr_asprintf(tmp, "%s &", g_magicdev_command);
1452        paranoid_system(tmp);
1453        mr_free(tmp);
1454    }
1455}
1456
1457/* @} - end of utilityGroup */
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