source: branches/2.2.8/mondo/src/common/libmondo-tools.c @ 2791

Last change on this file since 2791 was 2791, checked in by Bruno Cornec, 9 years ago

r2161@localhost (orig r2160): bruno | 2009-03-06 10:53:57 +0100

  • Exclude filesystems type ptmpfs and devpts from being parsed. Should solve aproblem seen with large /dev/shm being backed up.


  • Property svn:keywords set to Id
File size: 39.4 KB
Line 
1/*
2   $Id: libmondo-tools.c 2791 2011-04-29 13:37:35Z 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 "mondostructures.h"
13#include "lib-common-externs.h"
14#include "libmondo-tools.h"
15#include "libmondo-gui-EXT.h"
16#include "libmondo-files-EXT.h"
17#include "libmondo-fork-EXT.h"
18#include "libmondo-raid-EXT.h"
19#include "libmondo-devices-EXT.h"
20#include <sys/socket.h>
21#include <netdb.h>
22#include <stdlib.h>
23#include <netinet/in.h>
24#include <arpa/inet.h>
25#include <sys/utsname.h>
26
27/*@unused@*/
28//static char cvsid[] = "$Id: libmondo-tools.c 2791 2011-04-29 13:37:35Z bruno $";
29
30extern int g_tape_buffer_size_MB;
31extern char *g_serial_string;
32extern bool g_text_mode;
33extern int g_currentY;
34extern int g_current_media_number;
35extern char *MONDO_LOGFILE;
36
37/* Reference to global bkpinfo */
38extern struct s_bkpinfo *bkpinfo;
39
40/**
41 * @addtogroup globalGroup
42 * @{
43 */
44bool g_remount_cdrom_at_end,    ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
45 g_remount_floppy_at_end;       ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
46bool g_cd_recovery;             ///< TRUE if we're making an "autonuke" backup.
47double g_kernel_version;
48
49/**
50 * The place where /boot is mounted.
51 */
52char *g_boot_mountpt = NULL;
53
54/**
55 * The location of Mondo's home directory.
56 */
57char *g_mondo_home = NULL;
58
59/**
60 * The serial string (used to differentiate between backups) of the current backup.
61 */
62char *g_serial_string = NULL;
63
64/**
65 * The location where tmpfs is mounted, or "" if it's not mounted.
66char *g_tmpfs_mountpt = NULL;
67 */
68char *g_magicdev_command = NULL;
69
70/**
71 * The default maximum level to log messages at or below.
72 */
73int g_loglevel = DEFAULT_DEBUG_LEVEL;
74
75/* @} - end of globalGroup */
76
77
78extern pid_t g_buffer_pid;
79extern pid_t g_main_pid;
80
81extern t_bkptype g_backup_media_type;
82
83extern bool am_I_in_disaster_recovery_mode(void);
84
85/* Return a string containing the date */
86char *mr_date(void) {
87
88        time_t tcurr;
89
90        tcurr = time(NULL);
91        return(ctime(&tcurr));
92}
93
94/*-----------------------------------------------------------*/
95
96
97/**
98 * @addtogroup utilityGroup
99 * @{
100 */
101/**
102 * Assertion handler. Prints a friendly message to the user,
103 * offering to ignore all, dump core, break to debugger,
104 * exit, or ignore. Intended to be used with an assert() macro.
105 *
106 * @param file The file in which the assertion triggered.
107 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
108 * @param line The line number of the assert() statement.
109 * @param exp The expression that failed (as a string).
110 */
111void _mondo_assert_fail(const char *file,
112                        const char *function, int line, const char *exp)
113{
114    static int ignoring_assertions = 0;
115    bool is_valid = TRUE;
116
117    log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
118           function);
119    if (ignoring_assertions) {
120        log_it("Well, the user doesn't care...");
121        return;
122    }
123#ifndef _XWIN
124    if (!g_text_mode)
125        newtSuspend();
126#endif
127    printf("ASSERTION FAILED: `%s'\n", exp);
128    printf("\tat %s:%d in %s\n\n", file, line, function);
129    printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
130    do {
131        is_valid = TRUE;
132        switch (toupper(getchar())) {
133        case 'A':               // ignore (A)ll
134            ignoring_assertions = 1;
135            break;
136        case 'B':               // a(B)ort
137            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
138            raise(SIGABRT);
139            break;              /* "can't get here" */
140        case 'D':               // (D)ebug, aka asm("int 3")
141#ifdef __IA32__
142            __asm__ __volatile__("int $3"); // break to debugger
143#endif
144            break;
145        case 'E':               // (E)xit
146            fatal_error("Failed assertion -- see above for details");
147            break;              /* "can't get here" */
148        case 'I':               // (I)gnore
149            break;
150            /* These next two work as follows:
151               the `default' catches the user's invalid choice and says so;
152               the '\n' catches the newline on the end and prints the prompt again.
153             */
154        case '\n':
155            printf
156                ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
157            break;
158        default:
159            is_valid = FALSE;
160            printf("Invalid choice.\n");
161            break;
162        }
163    } while (!is_valid);
164
165    if (ignoring_assertions) {
166        log_it("Ignoring ALL assertions from now on.");
167    } else {
168        log_it("Ignoring assertion: %s", exp);
169    }
170
171    getchar();                  // skip \n
172
173#ifndef _XWIN
174    if (!g_text_mode)
175        newtResume();
176#endif
177}
178
179/**
180 * Clean's up users' KDE desktops.
181 * @bug Details about this function are unknown.
182 */
183void clean_up_KDE_desktop_if_necessary(void)
184{
185    char *tmp;
186
187    malloc_string(tmp);
188    strcpy(tmp,
189           "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
190file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
191awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
192else { print $0;};}' $file.old  > $file ; fi ; done");
193    run_program_and_log_output(tmp, 5);
194    paranoid_free(tmp);
195}
196
197
198/**
199 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
200 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
201 *
202 * @param home_sz String to store the home directory ("" if it could not be found).
203 * @return 0 for success, nonzero for failure.
204 */
205int find_and_store_mondoarchives_home(char *home_sz)
206{
207    assert(home_sz != NULL);
208    strcpy(home_sz, MONDO_SHARE);
209    return (0);
210}
211
212
213char *get_architecture(void) {
214#ifdef __IA32__
215#   ifdef __X86_64__
216        return ("x86_64");
217#   else
218        return ("i386");
219#   endif
220#endif
221#ifdef __IA64__
222    return ("ia64");
223#endif
224    return ("unknown");
225}
226
227
228char *get_uname_m(void) {
229
230    struct utsname utsn;
231    char *tmp = NULL;
232
233    uname(&utsn);
234    asprintf(&tmp, utsn.machine);
235    return (tmp);
236}
237
238
239
240double get_kernel_version(void)
241{
242    char *p, tmp[200];
243    double d;
244#ifdef __FreeBSD__
245    // JOSH - FIXME :)
246    d = 5.2;                    // :-)
247#else
248    strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
249    p = strchr(tmp, '.');
250    if (p) {
251        p = strchr(++p, '.');
252        if (p) {
253            while (*p) {
254                *p = *(p + 1);
255                p++;
256            }
257        }
258    }
259//  log_msg(1, "tmp = '%s'", tmp);
260    d = atof(tmp);
261#endif
262    log_msg(1, "g_kernel_version = %f", d);
263    return (d);
264}
265
266
267
268
269
270/**
271 * Get the current time.
272 * @return number of seconds since the epoch.
273 */
274long get_time()
275{
276    return (long) time((void *) 0);
277}
278
279
280
281
282
283
284
285/**
286 * Initialize a RAID volume structure, setting fields to zero. The
287 * actual hard drive is unaffected.
288 *
289 * @param raidrec The RAID volume structure to initialize.
290 * @note This function is system dependent.
291 */
292#ifdef __FreeBSD__
293void initialize_raidrec(struct vinum_volume *raidrec)
294{
295    int i, j;
296    raidrec->volname[0] = '\0';
297    raidrec->plexes = 0;
298    for (i = 0; i < 9; ++i) {
299        raidrec->plex[i].raidlevel = -1;
300        raidrec->plex[i].stripesize = 0;
301        raidrec->plex[i].subdisks = 0;
302        for (j = 0; j < 9; ++j) {
303            strcpy(raidrec->plex[i].sd[j].which_device, "");
304        }
305    }
306}
307#else
308void initialize_raidrec(struct raid_device_record *raidrec)
309{
310    assert(raidrec != NULL);
311    raidrec->raid_device[0] = '\0';
312    raidrec->raid_level = -9;
313    raidrec->persistent_superblock = 1;
314    raidrec->chunk_size = 64;
315    raidrec->parity = -1;
316    raidrec->data_disks.entries = 0;
317    raidrec->spare_disks.entries = 0;
318    raidrec->parity_disks.entries = 0;
319    raidrec->failed_disks.entries = 0;
320    raidrec->additional_vars.entries = 0;
321}
322#endif
323
324
325
326
327/**
328 * Insert modules that Mondo requires.
329 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
330 * @c msdosfs and @c ext2fs for FreeBSD.
331 */
332void insmod_crucial_modules(void)
333{
334#ifdef __FreeBSD__
335    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
336    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
337#else
338    system("modprobe -a msdos vfat loop &> /dev/null");
339#endif
340}
341
342
343/**
344 * Log a trace message to the trace file.
345 * @bug This function seems orphaned. Please remove.
346 */
347void log_trace(char *o)
348{
349    /*@ pointers **************************************************** */
350    FILE *fout;
351
352    /*@ buffers ***************************************************** */
353    char output[MAX_STR_LEN];
354
355    /*@ int    ****************************************************** */
356    int i;
357
358    /*@ end vars *************************************************** */
359
360    if (o[0] == '\0') {
361        return;
362    }
363    strcpy(output, o);
364    i = (int) strlen(output);
365    if (i <= 0) {
366        return;
367    }
368    if (output[i - 1] < 32) {
369        output[i - 1] = '\0';
370    }
371    if (g_text_mode
372        /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
373        printf("%s\n", output);
374    }
375
376    fout = fopen(MONDO_TRACEFILE, "a");
377    if (fout) {
378        fprintf(fout, "%s\n", output);
379        paranoid_fclose(fout);
380    } else {
381        log_OS_error("Cannot write to tracefile");
382    }
383}
384
385
386
387
388
389/**
390 * Finish configuring the backup information structure. Call this function
391 * to set the parameters that depend on those that can be given on the command
392 * line.
393 *
394 * @param bkpinfo The backup information structure. Fields modified/used:
395 * - Used: @c bkpinfo->backup_data
396 * - Used: @c bkpinfo->backup_media_type
397 * - Used: @c bkpinfo->cdrw_speed
398 * - Used: @c bkpinfo->compression_level
399 * - Used: @c bkpinfo->include_paths
400 * - Used: @c bkpinfo->prefix
401 * - Used: @c bkpinfo->isodir
402 * - Used: @c bkpinfo->manual_cd_tray
403 * - Used: @c bkpinfo->make_cd_use_lilo
404 * - Used: @c bkpinfo->media_device
405 * - Used: @c bkpinfo->nfs_mount
406 * - Used: @c bkpinfo->nonbootable_backup
407 * - Used: @c bkpinfo->scratchdir
408 * - Used: @c bkpinfo->tmpdir
409 * - Used: @c bkpinfo->use_lzo
410 * - Modified: @c bkpinfo->call_before_iso
411 * - Modified: @c bkpinfo->call_make_iso
412 * - Modified: @c bkpinfo->optimal_set_size
413 * - Modified: @c bkpinfo->zip_exe
414 * - Modified: @c bkpinfo->zip_suffix
415 *
416 * @return number of errors, or 0 for success.
417 * @note Also creates directories that are specified in the @c bkpinfo structure but
418 * do not exist.
419 */
420int post_param_configuration()
421{
422    char *extra_cdrom_params;
423    char *mondo_mkisofs_sz;
424    char *command;
425    char *mtpt;
426    char *hostname, *ip_address;
427    int retval = 0;
428    char *colon;
429    char *cdr_exe;
430    char *tmp;
431    char call_before_iso_user[MAX_STR_LEN] = "\0";
432    /*
433    long avm = 0;
434    int rdsiz_MB;
435    */
436    char *iso_dev;
437    char *iso_mnt;
438    char *iso_tmp;
439    char *iso_path;
440
441    assert(bkpinfo != NULL);
442    malloc_string(extra_cdrom_params);
443    malloc_string(mondo_mkisofs_sz);
444    malloc_string(command);
445    malloc_string(mtpt);
446    malloc_string(hostname);
447    malloc_string(ip_address);
448    malloc_string(cdr_exe);
449    malloc_string(tmp);
450    malloc_string(iso_dev);
451    malloc_string(iso_mnt);
452    malloc_string(iso_tmp);
453    malloc_string(iso_path);
454    bkpinfo->optimal_set_size =
455        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
456        1024;
457
458    log_msg(1, "Foo");
459    if (bkpinfo->backup_media_type == tape) {
460        log_msg(1, "Bar");
461        sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
462        log_msg(1, "tmp = '%s'", tmp);
463        if (run_program_and_log_output(tmp, 3)) {
464            fatal_error
465                ("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.");
466        }
467    }
468    make_hole_for_dir(bkpinfo->scratchdir);
469    if (bkpinfo->backup_media_type == iso)
470        make_hole_for_dir(bkpinfo->isodir);
471
472    run_program_and_log_output("uname -a", 5);
473    run_program_and_log_output("cat /etc/*-release", 5);
474    run_program_and_log_output("cat /etc/*issue*", 5);
475#ifdef __FreeBSD__
476#else
477    run_program_and_log_output("cat /proc/cpuinfo", 5);
478    run_program_and_log_output
479        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
480         5);
481#endif
482
483    if (bkpinfo->use_lzo) {
484        strcpy(bkpinfo->zip_exe, "lzop");
485        strcpy(bkpinfo->zip_suffix, "lzo");
486    } else if (bkpinfo->use_gzip) {
487        strcpy(bkpinfo->zip_exe, "gzip");
488        strcpy(bkpinfo->zip_suffix, "gz");
489    } else if (bkpinfo->compression_level != 0) {
490        strcpy(bkpinfo->zip_exe, "bzip2");
491        strcpy(bkpinfo->zip_suffix, "bz2");
492    } else {
493        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
494    }
495
496// DVD
497
498    if (bkpinfo->backup_media_type == dvd) {
499        extra_cdrom_params[0] = '\0';
500        mondo_mkisofs_sz[0] = '\0';
501        if (find_home_of_exe("growisofs")) {
502            strcpy(cdr_exe, "growisofs");
503        }                       // unlikely to be used
504        else {
505            fatal_error("Please install growisofs.");
506        }
507        if (bkpinfo->nonbootable_backup) {
508            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
509        } else if
510#ifdef __FreeBSD__
511            (TRUE)
512#else
513            (bkpinfo->make_cd_use_lilo)
514#endif
515#ifdef __IA64__
516    {
517        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
518    }
519#else
520    {
521        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
522    }
523#endif
524        else
525        {
526            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
527        }
528        if (bkpinfo->manual_cd_tray) {
529            fatal_error("Manual CD tray + DVD not supported yet.");
530            // -m isn't supported by growisofs, BTW...
531        } else {
532            sprintf(bkpinfo->call_make_iso,
533                    "%s %s -Z %s . 2>> _ERR_",
534                    mondo_mkisofs_sz,
535                    extra_cdrom_params, bkpinfo->media_device);
536        }
537        if (getenv ("SUDO_COMMAND")) {
538            sprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
539            if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
540                popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
541                fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
542            }       
543        }
544        log_msg(2, "call_make_iso (DVD res) is ... %s",
545                bkpinfo->call_make_iso);
546    }                           // end of DVD code
547
548// CD-R or CD-RW
549    if (bkpinfo->backup_media_type == cdrw
550        || bkpinfo->backup_media_type == cdr) {
551        extra_cdrom_params[0] = '\0';
552        if (!bkpinfo->manual_cd_tray) {
553            strcat(extra_cdrom_params, "-waiti ");
554        }
555        if (bkpinfo->backup_media_type == cdrw) {
556            strcat(extra_cdrom_params, "blank=fast ");
557        }
558        if (find_home_of_exe("cdrecord")) {
559            strcpy(cdr_exe, "cdrecord");
560        } else if (find_home_of_exe("dvdrecord")) {
561            strcpy(cdr_exe, "dvdrecord");
562        } else {
563            fatal_error("Please install either cdrecord or dvdrecord.");
564        }
565        if (bkpinfo->nonbootable_backup) {
566            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
567        } else if
568#ifdef __FreeBSD__
569            (TRUE)
570#else
571            (bkpinfo->make_cd_use_lilo)
572#endif
573#ifdef __IA64__
574    {
575        strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
576    }
577#else
578    {
579        strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
580    }
581#endif
582        else
583        {
584            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
585        }
586        if (bkpinfo->manual_cd_tray) {
587            if (bkpinfo->call_before_iso[0] == '\0') {
588            sprintf(bkpinfo->call_before_iso,
589                        "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_",
590                        mondo_mkisofs_sz, bkpinfo->tmpdir);
591                } else {
592                strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
593                sprintf (bkpinfo->call_before_iso,
594                                    "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )",
595                        mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
596            }
597            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
598            sprintf(bkpinfo->call_make_iso,
599                    "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS,
600                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
601                    extra_cdrom_params, bkpinfo->media_device,
602                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
603        } else {
604            sprintf(bkpinfo->call_make_iso,
605                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
606                    mondo_mkisofs_sz, cdr_exe,
607                    (bkpinfo->please_dont_eject) ? " " : "-eject",
608                    extra_cdrom_params, bkpinfo->media_device,
609                    bkpinfo->cdrw_speed);
610        }
611    }                           // end of CD code
612
613    /*
614       if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
615       {
616       sprintf (tmp,
617       "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
618       bkpinfo->media_device, bkpinfo->internal_tape_block_size);
619       if (system(tmp))
620       {
621       retval++;
622       fprintf (stderr,
623       "Cannot write to tape device. Is the tape set read-only?\n");
624       }
625       } // end of tape code
626     */
627
628
629    if (bkpinfo->backup_media_type == iso) {
630
631/* Patch by Conor Daly <conor.daly@met.ie>
632 * 23-june-2004
633 * Break up isodir into iso_mnt and iso_path
634 * These will be used along with iso-dev at restore time
635 * to locate the ISOs where ever they're mounted
636 */
637
638        log_it("isodir = %s", bkpinfo->isodir);
639        sprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1",
640                bkpinfo->isodir);
641        log_it("command = %s", command);
642        log_it("res of it = %s",
643               call_program_and_get_last_line_of_output(command));
644        sprintf(iso_dev, "%s",
645                call_program_and_get_last_line_of_output(command));
646        sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
647        write_one_liner_data_file(tmp,
648                                  call_program_and_get_last_line_of_output
649                                  (command));
650
651        sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
652                iso_dev);
653        log_it("command = %s", command);
654        log_it("res of it = %s",
655               call_program_and_get_last_line_of_output(command));
656        sprintf(iso_mnt, "%s",
657                call_program_and_get_last_line_of_output(command));
658        sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
659        write_one_liner_data_file(tmp,
660                                  call_program_and_get_last_line_of_output
661                                  (command));
662        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
663        sprintf(iso_tmp, "%s", bkpinfo->isodir);
664        if (strlen(iso_tmp) < strlen(iso_mnt)) {
665            iso_path[0] = '\0';
666        } else {
667            sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
668        }
669        sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
670        write_one_liner_data_file(tmp, iso_path);
671        log_it("isodir: %s", iso_path);
672        sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
673        write_one_liner_data_file(tmp, bkpinfo->prefix);
674        log_it("iso-prefix: %s",  bkpinfo->prefix);
675
676/* End patch */
677    }                           // end of iso code
678
679    if (bkpinfo->backup_media_type == nfs) {
680        strcpy(hostname, bkpinfo->nfs_mount);
681        colon = strchr(hostname, ':');
682        if (!colon) {
683            log_it("nfs mount doesn't have a colon in it");
684            retval++;
685        } else {
686            struct hostent *hent;
687
688            *colon = '\0';
689            hent = gethostbyname(hostname);
690            if (!hent) {
691                log_it("Can't resolve NFS mount (%s): %s", hostname,
692                       hstrerror(h_errno));
693                retval++;
694            } else {
695                strcpy(ip_address, inet_ntoa
696                       ((struct in_addr)
697                        *((struct in_addr *) hent->h_addr)));
698                strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
699                strcpy(bkpinfo->nfs_mount, ip_address);
700            }
701        }
702        store_nfs_config();
703    }
704
705    log_it("Finished processing incoming params");
706    if (retval) {
707        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
708    }
709    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
710        log_it("tmpdir or scratchdir are blank/missing");
711        retval++;
712    }
713    if (bkpinfo->include_paths[0] == '\0') {
714        //      fatal_error ("Why no backup path?");
715        strcpy(bkpinfo->include_paths, "/");
716    }
717    chmod(bkpinfo->scratchdir, 0700);
718    g_backup_media_type = bkpinfo->backup_media_type;
719    paranoid_free(mtpt);
720    paranoid_free(extra_cdrom_params);
721    paranoid_free(mondo_mkisofs_sz);
722    paranoid_free(command);
723    paranoid_free(hostname);
724    paranoid_free(ip_address);
725    paranoid_free(cdr_exe);
726    paranoid_free(tmp);
727    paranoid_free(iso_dev);
728    paranoid_free(iso_mnt);
729    paranoid_free(iso_tmp);
730    paranoid_free(iso_path);
731    return (retval);
732}
733
734
735
736/**
737 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
738 * Seeds the random-number generator, loads important modules, checks the sanity
739 * of the user's Linux distribution, and deletes logfile.
740 * @param bkpinfo The backup information structure. Will be initialized.
741 * @return number of errors (0 for success)
742 */
743int pre_param_configuration()
744{
745    int res = 0;
746    char *tmp = NULL;
747
748    make_hole_for_dir(MNT_CDROM);
749    assert(bkpinfo != NULL);
750    srandom((unsigned long) (time(NULL)));
751    insmod_crucial_modules();
752    if (bkpinfo->disaster_recovery) {
753        if (!does_nonMS_partition_exist()) {
754            fatal_error
755                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
756        }
757    }
758
759    unlink(MONDO_TRACEFILE);
760    asprintf(&tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
761    run_program_and_log_output(tmp, FALSE);
762    paranoid_free(tmp);
763    if (find_and_store_mondoarchives_home(g_mondo_home)) {
764        fprintf(stderr,
765                "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");
766        res++;
767        return (res);
768    }
769    res += some_basic_system_sanity_checks();
770    if (res) {
771        log_it("Your distribution did not pass Mondo's sanity test.");
772    }
773    g_current_media_number = 1;
774    bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
775    return (res);
776}
777
778void setup_tmpdir(char *path) {
779
780    char *tmp = NULL;
781    char *p = NULL;
782
783    if ((bkpinfo->tmpdir != NULL) && (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL)) {
784        /* purging a potential old tmpdir */
785        asprintf(&tmp,"rm -Rf %s",bkpinfo->tmpdir);
786        system(tmp);
787        paranoid_free(tmp);
788    }
789
790    if (path != NULL) {
791        asprintf(&tmp, "%s/mondo.tmp.XXXXXX", path);
792    } else if (getenv("TMPDIR")) {
793        asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
794    } else if (getenv("TMP")) {
795        asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
796    } else {
797        asprintf(&tmp, "/tmp/mondo.tmp.XXXXXX");
798    }
799    p = mkdtemp(tmp);
800    if (p == NULL) {
801        log_it("Failed to create global tmp directory %s for Mondo.",tmp);
802        finish(-1);
803    }
804    strcpy(bkpinfo->tmpdir,p);
805    paranoid_free(tmp);
806}
807
808
809/**
810 * Reset all fields of the backup information structure to a sensible default.
811 * @param bkpinfo The @c bkpinfo to reset.
812 */
813void reset_bkpinfo()
814{
815    int i;
816
817    log_msg(1, "Hi");
818    assert(bkpinfo != NULL);
819    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
820
821    bkpinfo->media_device[0] = '\0';
822    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
823        bkpinfo->media_size[i] = -1;
824    }
825    bkpinfo->boot_loader = '\0';
826    bkpinfo->boot_device[0] = '\0';
827    bkpinfo->zip_exe[0] = '\0';
828    bkpinfo->zip_suffix[0] = '\0';
829    bkpinfo->image_devs[0] = '\0';
830    bkpinfo->compression_level = 3;
831    bkpinfo->use_lzo = FALSE;
832    bkpinfo->use_gzip = FALSE;
833    bkpinfo->do_not_compress_these[0] = '\0';
834    bkpinfo->verify_data = FALSE;
835    bkpinfo->backup_data = FALSE;
836    bkpinfo->restore_data = FALSE;
837    bkpinfo->use_star = FALSE;
838    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
839    bkpinfo->disaster_recovery =
840        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
841    if (bkpinfo->disaster_recovery) {
842        strcpy(bkpinfo->isodir, "/");
843    } else {
844        strcpy(bkpinfo->isodir, MONDO_CACHE);
845    }
846    strcpy(bkpinfo->prefix, STD_PREFIX);
847    sensibly_set_tmpdir_and_scratchdir();
848
849    bkpinfo->optimal_set_size = 0;
850    strcpy(bkpinfo->include_paths, "/");
851    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
852    bkpinfo->include_paths[0] = '\0';
853    bkpinfo->exclude_paths[0] = '\0';
854    bkpinfo->restore_path[0] = '\0';
855    bkpinfo->call_before_iso[0] = '\0';
856    bkpinfo->call_make_iso[0] = '\0';
857    bkpinfo->call_burn_iso[0] = '\0';
858    bkpinfo->call_after_iso[0] = '\0';
859    bkpinfo->kernel_path[0] = '\0';
860    bkpinfo->nfs_mount[0] = '\0';
861    bkpinfo->nfs_remote_dir[0] = '\0';
862    bkpinfo->postnuke_tarball[0] = '\0';
863    bkpinfo->wipe_media_first = FALSE;
864    bkpinfo->differential = 0;
865    bkpinfo->please_dont_eject = FALSE;
866    bkpinfo->cdrw_speed = 0;
867    bkpinfo->manual_cd_tray = FALSE;
868    bkpinfo->nonbootable_backup = FALSE;
869    bkpinfo->make_cd_use_lilo = FALSE;
870    bkpinfo->use_obdr = FALSE;
871    bkpinfo->restore_mode = interactive;
872}
873
874
875
876
877/**
878 * Get the remaining free space (in MB) on @p partition.
879 * @param partition The partition to check free space on (either a device or a mountpoint).
880 * @return The free space on @p partition, in MB.
881 */
882long free_space_on_given_partition(char *partition)
883{
884    char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
885    long res;
886
887    assert_string_is_neither_NULL_nor_zerolength(partition);
888
889    sprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
890    if (system(command)) {
891        return (-1);
892    }                           // partition does not exist
893    sprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
894            partition);
895    strcpy(out_sz, call_program_and_get_last_line_of_output(command));
896    if (strlen(out_sz) == 0) {
897        return (-1);
898    }                           // error within df, probably
899    res = atol(out_sz);
900    return (res);
901}
902
903
904
905/**
906 * Check the user's system for sanity. Checks performed:
907 * - make sure user has enough RAM (32mb required, 64mb recommended)
908 * - make sure user has enough free space in @c /
909 * - check kernel for ramdisk support
910 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
911 * - make sure CD-ROM is unmounted
912 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
913 *
914 * @return number of problems with the user's setup (0 for success)
915 */
916int some_basic_system_sanity_checks()
917{
918
919    /*@ buffers ************ */
920    char tmp[MAX_STR_LEN];
921    //  char command[MAX_STR_LEN];
922
923    /*@ int's *************** */
924    int retval = 0;
925
926    mvaddstr_and_log_it(g_currentY, 0,
927                        "Checking sanity of your Linux distribution");
928#ifndef __FreeBSD__
929    if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
930        && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
931        log_it
932            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
933        run_program_and_log_output
934            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
935    }
936    strcpy(tmp,
937           call_program_and_get_last_line_of_output
938           ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
939    if (atol(tmp) < 35000) {
940        retval++;
941        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
942    }
943    if (atol(tmp) < 66000) {
944        log_to_screen
945            ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
946    }
947#endif
948
949    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
950        retval++;
951        log_to_screen
952            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
953        fatal_error
954            ("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. :)");
955    }
956#ifndef __FreeBSD__
957    if (run_program_and_log_output
958        ("grep ramdisk /proc/devices", FALSE)) {
959        if (!ask_me_yes_or_no
960            ("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?"))
961        {
962            //          retval++;
963            log_to_screen
964                ("It looks as if your kernel lacks ramdisk and initrd support.");
965            log_to_screen
966                ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
967        }
968    }
969#endif
970    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
971    retval += whine_if_not_found("mkisofs");
972    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
973        retval += whine_if_not_found("cdrecord");
974    }
975    retval += whine_if_not_found("bzip2");
976    retval += whine_if_not_found("gzip");
977    retval += whine_if_not_found("awk");
978    retval += whine_if_not_found("md5sum");
979    retval += whine_if_not_found("strings");
980    retval += whine_if_not_found("mindi");
981    retval += whine_if_not_found("buffer");
982
983    // abort if Windows partition but no ms-sys and parted
984    if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
985        log_to_screen("I think you have a Windows 9x partition.");
986        retval += whine_if_not_found("parted");
987    }
988
989    if (!find_home_of_exe("cmp")) {
990        if (!find_home_of_exe("true")) {
991            whine_if_not_found("cmp");
992        } else {
993            log_to_screen
994                ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
995            if (run_program_and_log_output
996                ("cp -f `which true` /usr/bin/cmp", 0)) {
997                fatal_error("Failed to create dummy 'cmp' file.");
998            }
999        }
1000    }
1001    run_program_and_log_output
1002        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1003    strcpy(tmp,
1004           call_program_and_get_last_line_of_output
1005           ("mount | grep -E \"cdr(om|w)\""));
1006    if (strcmp("", tmp)) {
1007        if (strstr(tmp, "autofs")) {
1008            log_to_screen
1009                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1010            log_to_screen
1011                ("if a CD actually is inserted. If a CD is inserted, please");
1012            log_to_screen("eject it. Thank you.");
1013            log_it
1014                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1015        } else
1016            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1017            retval++;
1018            fatal_error
1019                ("Your CD-ROM drive is mounted. Please unmount it.");
1020        }
1021    }
1022
1023    run_program_and_log_output("cat /etc/fstab", 5);
1024#ifdef __FreeBSD__
1025    run_program_and_log_output("vinum printconfig", 5);
1026#else
1027    run_program_and_log_output("cat /etc/raidtab", 5);
1028#endif
1029
1030    if (run_program_and_log_output("mindi -V", 1)) {
1031        log_to_screen("Could not ascertain mindi's version number.");
1032        log_to_screen
1033            ("You have not installed Mondo and/or Mindi properly.");
1034        log_to_screen("Please uninstall and reinstall them both.");
1035        fatal_error("Please reinstall Mondo and Mindi.");
1036    }
1037    sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1038    if (run_program_and_log_output(tmp, 5)) {
1039        sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1040        log_to_screen(tmp);
1041        log_to_screen
1042            ("Please run that command by hand and examine /var/log/mindi.log");
1043        log_to_screen
1044            ("for more information. Perhaps your /etc/fstab file is insane.");
1045        log_to_screen
1046            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1047        retval++;
1048    }
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 */
1072int read_cfg_var(char *config_file, char *label, char *value)
1073{
1074    /*@ buffer ****************************************************** */
1075    char command[MAX_STR_LEN * 2];
1076    char tmp[MAX_STR_LEN];
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        sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1084                config_file);
1085        log_to_screen(tmp);
1086        value[0] = '\0';
1087        return (1);
1088    } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1089        log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1090        return (0);
1091    } else {
1092        sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1093                label, config_file);
1094        strcpy(value, call_program_and_get_last_line_of_output(command));
1095        if (strlen(value) == 0) {
1096            return (1);
1097        } else {
1098            return (0);
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[MAX_STR_LEN];
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        sprintf(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    }
1182}
1183
1184/**
1185 * If autofs was stopped earlier, restart it.
1186 */
1187void restart_autofs_if_necessary()
1188{
1189    char tmp[MAX_STR_LEN];
1190
1191    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1192        log_msg(3, "No autofs detected.");
1193        return;
1194    }
1195    sprintf(tmp, "%s start", g_autofs_exe);
1196    if (run_program_and_log_output(tmp, 2)) {
1197        log_it("Failed to start autofs");
1198    } else {
1199        g_autofs_stopped = FALSE;
1200        log_it("Started autofs OK");
1201    }
1202}
1203
1204
1205/**
1206 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1207 */
1208void mount_boot_if_necessary()
1209{
1210    char tmp[MAX_STR_LEN];
1211    char command[MAX_STR_LEN];
1212
1213    log_msg(1, "Started sub");
1214    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1215    g_boot_mountpt[0] = '\0';
1216    log_msg(4, "Done. Great. Seeting command to something");
1217    strcpy(command,
1218           "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    strcpy(tmp, call_program_and_get_last_line_of_output(command));
1221    log_msg(4, "tmp = '%s'", tmp);
1222    if (tmp[0]) {
1223        log_it("/boot is at %s according to /etc/fstab", tmp);
1224        strcpy(command, "mount | grep -Ew '/boot'");
1225        strcpy(tmp, call_program_and_get_last_line_of_output(command));
1226        if (!strcmp(tmp,"")) {
1227            if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1228                if (!run_program_and_log_output("mount /boot", 5)) {
1229                    strcpy(g_boot_mountpt, "/boot");
1230                    log_msg(1, "Mounted /boot");
1231                } else {
1232                    log_it("...ignored cos it's a label or uuid :-)");
1233                }
1234            } else {
1235                sprintf(command, "mount | grep -E '^%s'", tmp);
1236                log_msg(3, "command = %s", command);
1237                if (run_program_and_log_output(command, 5)) {
1238                    strcpy(g_boot_mountpt, tmp);
1239                    sprintf(tmp,
1240                            "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1241                            g_boot_mountpt);
1242                    log_it(tmp);
1243                    sprintf(tmp, "mount %s", g_boot_mountpt);
1244                    if (run_program_and_log_output(tmp, 5)) {
1245                        g_boot_mountpt[0] = '\0';
1246                        log_msg(1, "Plan B");
1247                        if (!run_program_and_log_output("mount /boot", 5)) {
1248                            strcpy(g_boot_mountpt, "/boot");
1249                            log_msg(1, "Plan B worked");
1250                        } else {
1251                            log_msg(1,
1252                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1253                        }
1254                    }
1255                }
1256            }
1257        }
1258    }
1259    log_msg(1, "Ended sub");
1260}
1261
1262
1263/**
1264 * If we mounted /boot earlier, unmount it.
1265 */
1266void unmount_boot_if_necessary()
1267{
1268    char tmp[MAX_STR_LEN];
1269
1270    log_msg(3, "starting");
1271    if (g_boot_mountpt[0]) {
1272        sprintf(tmp, "umount %s", g_boot_mountpt);
1273        if (run_program_and_log_output(tmp, 5)) {
1274            log_it("WARNING - unable to unmount /boot");
1275        }
1276    }
1277    log_msg(3, "leaving");
1278}
1279
1280
1281
1282/**
1283 * Write a line to a configuration file. Writes a line of the form,
1284 * @c label @c value.
1285 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1286 * @param label What to call this bit of data you're writing.
1287 * @param value The bit of data you're writing.
1288 * @return 0 for success, 1 for failure.
1289 */
1290int write_cfg_var(char *config_file, char *label, char *value)
1291{
1292    /*@ buffers ***************************************************** */
1293    char command[MAX_STR_LEN * 2];
1294    char tempfile[MAX_STR_LEN];
1295    char tmp[MAX_STR_LEN];
1296
1297
1298    /*@ end vars *************************************************** */
1299    assert_string_is_neither_NULL_nor_zerolength(config_file);
1300    assert_string_is_neither_NULL_nor_zerolength(label);
1301    assert(value != NULL);
1302    if (!does_file_exist(config_file)) {
1303        sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1304                config_file);
1305        log_to_screen(tmp);
1306        return (1);
1307    }
1308    sprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1309    if (does_file_exist(config_file)) {
1310        sprintf(command, "grep -vE '^%s .*$' %s > %s",
1311                label, config_file, tempfile);
1312        paranoid_system(command);
1313    }
1314    sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1315    paranoid_system(command);
1316    sprintf(command, "mv -f %s %s", tempfile, config_file);
1317    paranoid_system(command);
1318    unlink(tempfile);
1319    return (0);
1320}
1321
1322
1323/**
1324 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1325 * information to the logfile.
1326 */
1327void standard_log_debug_msg(int debug_level, const char *szFile,
1328                            const char *szFunction, int nLine,
1329                            const char *fmt, ...)
1330{
1331    va_list args;
1332    int i;
1333    static int depth = 0;
1334    char *tmp;
1335    FILE *fout;
1336
1337    if (depth > 5) {
1338        depth--;
1339        return;
1340    }
1341    depth++;
1342
1343    malloc_string(tmp);
1344
1345    if (debug_level <= g_loglevel) {
1346        va_start(args, fmt);
1347        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1348            return;
1349        }       // fatal_error("Failed to openout to logfile - sheesh..."); }
1350
1351        // add tabs to distinguish log levels
1352        if (debug_level > 0) {
1353            for (i = 1; i < debug_level; i++)
1354                fprintf(fout, "\t");
1355            if (getpid() == g_main_pid)
1356                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1357                        nLine);
1358            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1359                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1360                        nLine);
1361            else
1362                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1363                        szFunction, nLine);
1364        }
1365        vfprintf(fout, fmt, args);
1366
1367        // do not slow down the progran if standard debug level
1368        // must be enabled: if no flush, the log won't be up-to-date if there
1369        // is a segfault
1370        //if (g_dwDebugLevel != 1)
1371
1372        va_end(args);
1373        fprintf(fout, "\n");
1374        paranoid_fclose(fout);
1375    }
1376    depth--;
1377    paranoid_free(tmp);
1378}
1379
1380/**
1381 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1382 */
1383void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1384                       ...) = standard_log_debug_msg;
1385
1386
1387/**
1388 * If @p y, malloc @p x, else free @p x.
1389 * @bug This function seems orphaned. Please remove.
1390 */
1391#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1392
1393/**
1394 * Allocate or free important globals, depending on @p mal.
1395 * @param mal If TRUE, malloc; if FALSE, free.
1396 */
1397void do_libmondo_global_strings_thing(int mal)
1398{
1399    if (mal) {
1400        malloc_string(g_boot_mountpt);
1401        malloc_string(g_mondo_home);
1402        /*
1403        malloc_string(g_tmpfs_mountpt);
1404        */
1405        malloc_string(g_serial_string);
1406        malloc_string(g_magicdev_command);
1407    } else {
1408        paranoid_free(g_boot_mountpt);
1409        paranoid_free(g_mondo_home);
1410        /*
1411        paranoid_free(g_tmpfs_mountpt);
1412        */
1413        paranoid_free(g_serial_string);
1414        paranoid_free(g_magicdev_command);
1415    }
1416
1417    /*
1418       char**list_of_arrays[] = {
1419       &g_boot_mountpt,
1420       &g_mondo_home,
1421       &g_tmpfs_mountpt,
1422       &g_serial_string,
1423       &g_magicdev_command,
1424       NULL};
1425
1426       char**ppcurr;
1427       int i;
1428
1429       for(i=0;list_of_arrays[i];i++)
1430       {
1431       log_msg(5, "Allocating %d", i);
1432       ppcurr = list_of_arrays[i];
1433       if (mal)
1434       { *ppcurr = malloc(MAX_STR_LEN); }
1435       else
1436       {
1437       if (*ppcurr)
1438       {
1439       free(*ppcurr);
1440       }
1441       }
1442       }
1443       log_msg(5, "Returning");
1444     */
1445}
1446
1447/**
1448 * Allocate important globals.
1449 * @see do_libmondo_global_strings_thing
1450 */
1451void malloc_libmondo_global_strings(void)
1452{
1453    do_libmondo_global_strings_thing(1);
1454}
1455
1456/**
1457 * Free important globals.
1458 * @see do_libmondo_global_strings_thing
1459 */
1460void free_libmondo_global_strings(void)
1461{
1462    do_libmondo_global_strings_thing(0);
1463}
1464
1465
1466
1467/**
1468 * Stop @c magicdev if it's running.
1469 * The command used to start it is saved in @p g_magicdev_command.
1470 */
1471void stop_magicdev_if_necessary()
1472{
1473    strcpy(g_magicdev_command,
1474           call_program_and_get_last_line_of_output
1475           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1476    if (g_magicdev_command[0]) {
1477        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1478        paranoid_system("killall magicdev");
1479    }
1480}
1481
1482
1483/**
1484 * Restart magicdev if it was stopped.
1485 */
1486void restart_magicdev_if_necessary()
1487{
1488    char *tmp;
1489
1490    malloc_string(tmp);
1491    if (g_magicdev_command && g_magicdev_command[0]) {
1492        sprintf(tmp, "%s &", g_magicdev_command);
1493        paranoid_system(tmp);
1494    }
1495    paranoid_free(tmp);
1496}
1497
1498/* @} - end of utilityGroup */
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