source: branches/2.2.9/mondo/src/common/libmondo-tools.c @ 2847

Last change on this file since 2847 was 2847, checked in by bruno, 8 years ago
  • Try to handle netfs_user better in all cases (NFS and SSHFS)
  • Property svn:keywords set to Id
File size: 39.3 KB
Line 
1/*
2   $Id: libmondo-tools.c 2847 2011-07-05 01:26:49Z 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 2847 2011-07-05 01:26:49Z bruno $";
30
31extern int g_tape_buffer_size_MB;
32extern char *g_serial_string;
33extern bool g_text_mode;
34extern int g_currentY;
35extern int g_current_media_number;
36extern char *MONDO_LOGFILE;
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 serial string (used to differentiate between backups) of the current backup.
62 */
63char *g_serial_string = NULL;
64
65/**
66 * The location where tmpfs is mounted, or "" if it's not mounted.
67char *g_tmpfs_mountpt = NULL;
68 */
69char *g_magicdev_command = NULL;
70
71/**
72 * The default maximum level to log messages at or below.
73 */
74int g_loglevel = DEFAULT_DEBUG_LEVEL;
75
76/* @} - end of globalGroup */
77
78
79extern pid_t g_buffer_pid;
80extern pid_t g_main_pid;
81
82extern t_bkptype g_backup_media_type;
83
84extern bool am_I_in_disaster_recovery_mode(void);
85
86/*-----------------------------------------------------------*/
87
88
89/**
90 * @addtogroup utilityGroup
91 * @{
92 */
93/**
94 * Assertion handler. Prints a friendly message to the user,
95 * offering to ignore all, dump core, break to debugger,
96 * exit, or ignore. Intended to be used with an assert() macro.
97 *
98 * @param file The file in which the assertion triggered.
99 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
100 * @param line The line number of the assert() statement.
101 * @param exp The expression that failed (as a string).
102 */
103void _mondo_assert_fail(const char *file,
104                        const char *function, int line, const char *exp)
105{
106    static int ignoring_assertions = 0;
107    bool is_valid = TRUE;
108
109    log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
110           function);
111    if (ignoring_assertions) {
112        log_it("Well, the user doesn't care...");
113        return;
114    }
115#ifndef _XWIN
116    if (!g_text_mode)
117        newtSuspend();
118#endif
119    printf("ASSERTION FAILED: `%s'\n", exp);
120    printf("\tat %s:%d in %s\n\n", file, line, function);
121    printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
122    do {
123        is_valid = TRUE;
124        switch (toupper(getchar())) {
125        case 'A':               // ignore (A)ll
126            ignoring_assertions = 1;
127            break;
128        case 'B':               // a(B)ort
129            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
130            raise(SIGABRT);
131            break;              /* "can't get here" */
132        case 'D':               // (D)ebug, aka asm("int 3")
133#ifdef __IA32__
134            __asm__ __volatile__("int $3"); // break to debugger
135#endif
136            break;
137        case 'E':               // (E)xit
138            fatal_error("Failed assertion -- see above for details");
139            break;              /* "can't get here" */
140        case 'I':               // (I)gnore
141            break;
142            /* These next two work as follows:
143               the `default' catches the user's invalid choice and says so;
144               the '\n' catches the newline on the end and prints the prompt again.
145             */
146        case '\n':
147            printf
148                ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
149            break;
150        default:
151            is_valid = FALSE;
152            printf("Invalid choice.\n");
153            break;
154        }
155    } while (!is_valid);
156
157    if (ignoring_assertions) {
158        log_it("Ignoring ALL assertions from now on.");
159    } else {
160        log_it("Ignoring assertion: %s", exp);
161    }
162
163    getchar();                  // skip \n
164
165#ifndef _XWIN
166    if (!g_text_mode)
167        newtResume();
168#endif
169}
170
171/**
172 * Clean's up users' KDE desktops.
173 * @bug Details about this function are unknown.
174 */
175void clean_up_KDE_desktop_if_necessary(void)
176{
177    char *tmp;
178
179    malloc_string(tmp);
180    strcpy(tmp,
181           "for i in `find /root /home -maxdepth 2 -type d -name Desktop`; do \
182file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
183awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
184else { print $0;};}' $file.old  > $file ; fi ; done");
185    run_program_and_log_output(tmp, 5);
186    paranoid_free(tmp);
187}
188
189
190/**
191 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
192 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
193 *
194 * @param home_sz String to store the home directory ("" if it could not be found).
195 * @return 0 for success, nonzero for failure.
196 */
197int find_and_store_mondoarchives_home(char *home_sz)
198{
199    assert(home_sz != NULL);
200    strcpy(home_sz, MONDO_SHARE);
201    return (0);
202}
203
204
205char *get_architecture(void) {
206#ifdef __IA32__
207#   ifdef __X86_64__
208        return ("x86_64");
209#   else
210        return ("i386");
211#   endif
212#endif
213#ifdef __IA64__
214    return ("ia64");
215#endif
216    return ("unknown");
217}
218
219
220char *get_uname_m(void) {
221
222    struct utsname utsn;
223    char *tmp = NULL;
224
225    uname(&utsn);
226    mr_asprintf(&tmp, "%s", utsn.machine);
227    return (tmp);
228}
229
230
231
232double get_kernel_version(void)
233{
234    char *p, tmp[200];
235    double d;
236#ifdef __FreeBSD__
237    // JOSH - FIXME :)
238    d = 5.2;                    // :-)
239#else
240    strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
241    p = strchr(tmp, '.');
242    if (p) {
243        p = strchr(++p, '.');
244        if (p) {
245            while (*p) {
246                *p = *(p + 1);
247                p++;
248            }
249        }
250    }
251//  log_msg(1, "tmp = '%s'", tmp);
252    d = atof(tmp);
253#endif
254    log_msg(1, "g_kernel_version = %f", d);
255    return (d);
256}
257
258
259
260
261
262/**
263 * Get the current time.
264 * @return number of seconds since the epoch.
265 */
266long get_time()
267{
268    return (long) time((void *) 0);
269}
270
271
272
273
274
275
276
277/**
278 * Initialize a RAID volume structure, setting fields to zero. The
279 * actual hard drive is unaffected.
280 *
281 * @param raidrec The RAID volume structure to initialize.
282 * @note This function is system dependent.
283 */
284#ifdef __FreeBSD__
285void initialize_raidrec(struct vinum_volume *raidrec)
286{
287    int i, j;
288    raidrec->volname[0] = '\0';
289    raidrec->plexes = 0;
290    for (i = 0; i < 9; ++i) {
291        raidrec->plex[i].raidlevel = -1;
292        raidrec->plex[i].stripesize = 0;
293        raidrec->plex[i].subdisks = 0;
294        for (j = 0; j < 9; ++j) {
295            strcpy(raidrec->plex[i].sd[j].which_device, "");
296        }
297    }
298}
299#else
300void initialize_raidrec(struct raid_device_record *raidrec)
301{
302    assert(raidrec != NULL);
303    raidrec->raid_device[0] = '\0';
304    raidrec->raid_level = -9;
305    raidrec->persistent_superblock = 1;
306    raidrec->chunk_size = 64;
307    raidrec->parity = -1;
308    raidrec->data_disks.entries = 0;
309    raidrec->spare_disks.entries = 0;
310    raidrec->parity_disks.entries = 0;
311    raidrec->failed_disks.entries = 0;
312    raidrec->additional_vars.entries = 0;
313}
314#endif
315
316
317
318
319/**
320 * Insert modules that Mondo requires.
321 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
322 * @c msdosfs and @c ext2fs for FreeBSD.
323 */
324void insmod_crucial_modules(void)
325{
326#ifdef __FreeBSD__
327    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
328    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
329#else
330    system("modprobe -a msdos vfat loop &> /dev/null");
331#endif
332}
333
334
335/**
336 * Finish configuring the backup information structure. Call this function
337 * to set the parameters that depend on those that can be given on the command
338 * line.
339 *
340 * @param bkpinfo The backup information structure. Fields modified/used:
341 * - Used: @c bkpinfo->backup_data
342 * - Used: @c bkpinfo->backup_media_type
343 * - Used: @c bkpinfo->cdrw_speed
344 * - Used: @c bkpinfo->compression_level
345 * - Used: @c bkpinfo->include_paths
346 * - Used: @c bkpinfo->prefix
347 * - Used: @c bkpinfo->isodir
348 * - Used: @c bkpinfo->manual_cd_tray
349 * - Used: @c bkpinfo->make_cd_use_lilo
350 * - Used: @c bkpinfo->media_device
351 * - Used: @c bkpinfo->netfs_mount
352 * - Used: @c bkpinfo->nonbootable_backup
353 * - Used: @c bkpinfo->scratchdir
354 * - Used: @c bkpinfo->tmpdir
355 * - Used: @c bkpinfo->use_lzo
356 * - Modified: @c bkpinfo->call_before_iso
357 * - Modified: @c bkpinfo->call_make_iso
358 * - Modified: @c bkpinfo->optimal_set_size
359 * - Modified: @c bkpinfo->zip_exe
360 * - Modified: @c bkpinfo->zip_suffix
361 *
362 * @return number of errors, or 0 for success.
363 * @note Also creates directories that are specified in the @c bkpinfo structure but
364 * do not exist.
365 */
366int post_param_configuration()
367{
368    char *extra_cdrom_params = NULL;
369    char *mondo_mkisofs_sz = NULL;
370    char *command = NULL;
371    char *mtpt;
372    char *hostname;
373    char *ip_address = NULL;
374    int retval = 0;
375    char *colon;
376    char *cdr_exe;
377    char *tmp = NULL;
378    char call_before_iso_user[MAX_STR_LEN] = "\0";
379    /*
380    long avm = 0;
381    int rdsiz_MB;
382    */
383    char *iso_dev = NULL;
384    char *iso_mnt = NULL;
385    char *iso_tmp = NULL;
386    char *iso_path = NULL;
387
388    assert(bkpinfo != NULL);
389    malloc_string(mtpt);
390    malloc_string(hostname);
391    malloc_string(cdr_exe);
392    bkpinfo->optimal_set_size =
393        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
394        1024;
395
396    log_msg(1, "Post-param");
397    if (bkpinfo->backup_media_type == tape) {
398        log_msg(1, "Tape");
399        mr_asprintf(&tmp, "mt -f %s status", bkpinfo->media_device);
400        log_msg(1, "tmp = '%s'", tmp);
401        if (run_program_and_log_output(tmp, 3)) {
402            mr_free(tmp);
403            fatal_error
404                ("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.");
405        }
406        mr_free(tmp);
407    }
408    make_hole_for_dir(bkpinfo->scratchdir);
409    if (bkpinfo->backup_media_type == iso)
410        make_hole_for_dir(bkpinfo->isodir);
411
412    run_program_and_log_output("uname -a", 5);
413    run_program_and_log_output("cat /etc/*-release", 5);
414    run_program_and_log_output("cat /etc/*issue*", 5);
415#ifdef __FreeBSD__
416#else
417    run_program_and_log_output("cat /proc/cpuinfo", 5);
418    run_program_and_log_output
419        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
420         5);
421#endif
422
423    if (bkpinfo->use_lzo) {
424        strcpy(bkpinfo->zip_exe, "lzop");
425        strcpy(bkpinfo->zip_suffix, "lzo");
426    } else if (bkpinfo->use_gzip) {
427        strcpy(bkpinfo->zip_exe, "gzip");
428        strcpy(bkpinfo->zip_suffix, "gz");
429    } else if (bkpinfo->compression_level != 0) {
430        strcpy(bkpinfo->zip_exe, "bzip2");
431        strcpy(bkpinfo->zip_suffix, "bz2");
432    } else {
433        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
434    }
435
436// DVD
437
438    if (bkpinfo->backup_media_type == dvd) {
439        if (find_home_of_exe("growisofs")) {
440            strcpy(cdr_exe, "growisofs");
441        }                       // unlikely to be used
442        else {
443            fatal_error("Please install growisofs.");
444        }
445        if (bkpinfo->nonbootable_backup) {
446            mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
447        } else if
448#ifdef __FreeBSD__
449            (TRUE)
450#else
451            (bkpinfo->make_cd_use_lilo)
452#endif
453#ifdef __IA64__
454    {
455        mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
456    }
457#else
458    {
459        mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
460    }
461#endif
462        else
463        {
464            mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
465        }
466        if (bkpinfo->manual_cd_tray) {
467            paranoid_free(mondo_mkisofs_sz);
468            fatal_error("Manual CD tray + DVD not supported yet.");
469            // -m isn't supported by growisofs, BTW...
470        } else {
471            sprintf(bkpinfo->call_make_iso,
472                    "%s %s -Z %s . 2>> _ERR_",
473                    mondo_mkisofs_sz,
474                    "", bkpinfo->media_device);
475            paranoid_free(mondo_mkisofs_sz);
476        }
477        if (getenv ("SUDO_COMMAND")) {
478            mr_asprintf(&command, "strings `which growisofs` | grep -c SUDO_COMMAND");
479            if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
480                mr_free(command);
481                popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
482                fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
483            }       
484            mr_free(command);
485        }
486        log_msg(2, "call_make_iso (DVD res) is ... %s",
487                bkpinfo->call_make_iso);
488    }                           // end of DVD code
489
490// CD-R or CD-RW
491    if (bkpinfo->backup_media_type == cdrw
492        || bkpinfo->backup_media_type == cdr) {
493        if (!bkpinfo->manual_cd_tray) {
494            mr_asprintf(&extra_cdrom_params, "-waiti ");
495        }
496        if (bkpinfo->backup_media_type == cdrw) {
497            mr_asprintf(&extra_cdrom_params, "blank=fast ");
498        }
499        if (extra_cdrom_params == NULL) {
500            // If not initialized earlier, do it now
501            mr_asprintf(&extra_cdrom_params, " ");
502        }
503        if (find_home_of_exe("cdrecord")) {
504            strcpy(cdr_exe, "cdrecord");
505        } else if (find_home_of_exe("dvdrecord")) {
506            strcpy(cdr_exe, "dvdrecord");
507        } else {
508            fatal_error("Please install either cdrecord or dvdrecord.");
509        }
510        if (bkpinfo->nonbootable_backup) {
511            mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS);
512        } else if
513#ifdef __FreeBSD__
514            (TRUE)
515#else
516            (bkpinfo->make_cd_use_lilo)
517#endif
518#ifdef __IA64__
519    {
520        mr_asprintf(&mondo_mkisofs_sz, "%s -V _CD#_", MONDO_MKISOFS_REGULAR_ELILO);
521    }
522#else
523    {
524        mr_asprintf(&mondo_mkisofs_sz, "%s -V _CD#_", MONDO_MKISOFS_REGULAR_LILO);
525    }
526#endif
527        else
528        {
529            mr_asprintf(&mondo_mkisofs_sz, "%s -V _CD#_", MONDO_MKISOFS_REGULAR_SYSLINUX);
530        }
531        if (bkpinfo->manual_cd_tray) {
532            if (bkpinfo->call_before_iso[0] == '\0') {
533            sprintf(bkpinfo->call_before_iso,
534                        "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_",
535                        mondo_mkisofs_sz, bkpinfo->tmpdir);
536                } else {
537                strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
538                sprintf (bkpinfo->call_before_iso,
539                                    "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )",
540                        mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
541            }
542            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
543            sprintf(bkpinfo->call_make_iso,
544                    "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS,
545                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
546                    extra_cdrom_params, bkpinfo->media_device,
547                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
548        } else {
549            sprintf(bkpinfo->call_make_iso,
550                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
551                    mondo_mkisofs_sz, cdr_exe,
552                    (bkpinfo->please_dont_eject) ? " " : "-eject",
553                    extra_cdrom_params, bkpinfo->media_device,
554                    bkpinfo->cdrw_speed);
555        }
556        paranoid_free(mondo_mkisofs_sz);
557        paranoid_free(extra_cdrom_params);
558    }                           // end of CD code
559
560    if (bkpinfo->backup_media_type == iso) {
561
562/* Patch by Conor Daly <conor.daly@met.ie>
563 * 23-june-2004
564 * Break up isodir into iso_mnt and iso_path
565 * These will be used along with iso-dev at restore time
566 * to locate the ISOs where ever they're mounted
567 */
568
569        log_it("isodir = %s", bkpinfo->isodir);
570        mr_asprintf(&command, "df -P %s | tail -n1 | cut -d' ' -f1",
571                bkpinfo->isodir);
572        log_it("command = %s", command);
573        log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
574        mr_asprintf(&iso_dev, "%s", call_program_and_get_last_line_of_output(command));
575        mr_asprintf(&tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
576        write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
577        mr_free(tmp);
578        mr_free(command);
579
580        mr_asprintf(&command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
581        mr_free(iso_dev);
582
583        log_it("command = %s", command);
584        log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
585        mr_asprintf(&iso_mnt, "%s", call_program_and_get_last_line_of_output(command));
586        mr_asprintf(&tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
587        write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
588        mr_free(tmp);
589        mr_free(command);
590
591        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
592        mr_asprintf(&iso_tmp, "%s", bkpinfo->isodir);
593        if (strlen(iso_tmp) < strlen(iso_mnt)) {
594            mr_asprintf(&iso_path, "%s", "");
595        } else {
596            // If iso_mnt is only / then iso_path is the full dir
597            // (the formula bellow doesn't work in this case)
598            if (strcmp(iso_mnt, "/") == 0) {
599                mr_asprintf(&iso_path, "%s", iso_tmp);
600            // else it's a part of iso_tmp
601            } else {
602                mr_asprintf(&iso_path, "%s", iso_tmp + strlen(iso_mnt));
603            }
604        }
605        mr_free(iso_tmp);
606        mr_free(iso_mnt);
607
608        mr_asprintf(&tmp, "%s/ISODIR", bkpinfo->tmpdir);
609        write_one_liner_data_file(tmp, iso_path);
610        mr_free(tmp);
611
612        log_it("isodir: %s", iso_path);
613        mr_free(iso_path);
614
615        mr_asprintf(&tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
616        write_one_liner_data_file(tmp, bkpinfo->prefix);
617        mr_free(tmp);
618
619        log_it("iso-prefix: %s",  bkpinfo->prefix);
620
621/* End patch */
622    }                           // end of iso code
623
624    if (bkpinfo->backup_media_type == netfs) {
625        strcpy(hostname, bkpinfo->netfs_mount);
626        colon = strchr(hostname, ':');
627        if (!colon) {
628            log_it("netfs mount doesn't have a colon in it");
629            retval++;
630        } else {
631            struct hostent *hent;
632
633            *colon = '\0';
634            colon = strchr(hostname, '@');
635            if (colon) {
636                *colon = '\0';
637                colon++;
638                hent = gethostbyname(colon);
639                mr_asprintf(bkpinfo->netfs_user,"%s", hostname);
640            } else {
641                hent = gethostbyname(hostname);
642            }
643            if (!hent) {
644                log_it("Can't resolve Network mount (%s): %s", hostname,
645                       hstrerror(h_errno));
646                retval++;
647            } else {
648                mr_asprintf(&ip_address, "%s", inet_ntoa((struct in_addr) *((struct in_addr *) hent->h_addr)));
649                mr_strcat(ip_address, strchr(bkpinfo->netfs_mount, ':'));
650                strcpy(bkpinfo->netfs_mount, ip_address);
651                paranoid_free(ip_address);
652            }
653        }
654        store_netfs_config();
655    }
656
657    log_it("Finished processing incoming params");
658    if (retval) {
659        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
660    }
661    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
662        log_it("tmpdir or scratchdir are blank/missing");
663        retval++;
664    }
665    if (bkpinfo->include_paths[0] == '\0') {
666        //      fatal_error ("Why no backup path?");
667        strcpy(bkpinfo->include_paths, "/");
668    }
669    chmod(bkpinfo->scratchdir, 0700);
670    g_backup_media_type = bkpinfo->backup_media_type;
671    paranoid_free(mtpt);
672    paranoid_free(hostname);
673    paranoid_free(cdr_exe);
674    return (retval);
675}
676
677
678
679/**
680 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
681 * Seeds the random-number generator, loads important modules, checks the sanity
682 * of the user's Linux distribution, and deletes logfile.
683 * @param bkpinfo The backup information structure. Will be initialized.
684 * @return number of errors (0 for success)
685 */
686int pre_param_configuration()
687{
688    int res = 0;
689    char *tmp = NULL;
690
691    make_hole_for_dir(MNT_CDROM);
692    assert(bkpinfo != NULL);
693    srandom((unsigned long) (time(NULL)));
694    insmod_crucial_modules();
695    if (bkpinfo->disaster_recovery) {
696        if (!does_nonMS_partition_exist()) {
697            fatal_error
698                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
699        }
700    }
701
702    mr_asprintf(&tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
703    run_program_and_log_output(tmp, FALSE);
704    paranoid_free(tmp);
705    if (find_and_store_mondoarchives_home(g_mondo_home)) {
706        fprintf(stderr,
707                "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");
708        res++;
709        return (res);
710    }
711    res += some_basic_system_sanity_checks();
712    if (res) {
713        log_it("Your distribution did not pass Mondo's sanity test.");
714    }
715    g_current_media_number = 1;
716    bkpinfo->postnuke_tarball[0] = bkpinfo->netfs_mount[0] = '\0';
717    return (res);
718}
719
720void setup_tmpdir(char *path) {
721
722    char *tmp = NULL;
723    char *p = NULL;
724
725    if ((bkpinfo->tmpdir != NULL) && (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL)) {
726        /* purging a potential old tmpdir */
727        log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
728        mr_asprintf(&tmp,"rm -Rf %s",bkpinfo->tmpdir);
729        (void)system(tmp);
730        paranoid_free(tmp);
731    }
732
733    /* Always take in account env first */
734    if (getenv("TMPDIR")) {
735        mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
736    } else if (getenv("TMP")) {
737        mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
738    } else if (path != NULL) {
739        mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", path);
740    } else {
741        mr_asprintf(&tmp, "/tmp/mondo.tmp.XXXXXX");
742    }
743    p = mkdtemp(tmp);
744    if (p == NULL) {
745        log_it("Failed to create global tmp directory %s for Mondo.",tmp);
746        finish(-1);
747    }
748    strcpy(bkpinfo->tmpdir,p);
749    paranoid_free(tmp);
750}
751
752
753/**
754 * Reset all fields of the backup information structure to a sensible default.
755 * @param bkpinfo The @c bkpinfo to reset.
756 */
757void reset_bkpinfo()
758{
759    int i;
760
761    log_msg(1, "Hi");
762    assert(bkpinfo != NULL);
763    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
764
765    bkpinfo->media_device[0] = '\0';
766    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
767        bkpinfo->media_size[i] = -1;
768    }
769    bkpinfo->boot_loader = '\0';
770    bkpinfo->boot_device[0] = '\0';
771    bkpinfo->zip_exe[0] = '\0';
772    bkpinfo->zip_suffix[0] = '\0';
773    bkpinfo->image_devs[0] = '\0';
774    bkpinfo->compression_level = 3;
775    bkpinfo->use_lzo = FALSE;
776    bkpinfo->use_gzip = FALSE;
777    bkpinfo->do_not_compress_these[0] = '\0';
778    bkpinfo->verify_data = FALSE;
779    bkpinfo->backup_data = FALSE;
780    bkpinfo->restore_data = FALSE;
781    bkpinfo->use_star = FALSE;
782    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
783    bkpinfo->disaster_recovery =
784        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
785    if (bkpinfo->disaster_recovery) {
786        strcpy(bkpinfo->isodir, "/");
787    } else {
788        strcpy(bkpinfo->isodir, MONDO_CACHE);
789    }
790    strcpy(bkpinfo->prefix, STD_PREFIX);
791    sensibly_set_tmpdir_and_scratchdir();
792
793    bkpinfo->optimal_set_size = 0;
794    strcpy(bkpinfo->include_paths, "/");
795    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
796    bkpinfo->include_paths[0] = '\0';
797    bkpinfo->exclude_devs = NULL;
798    bkpinfo->restore_path[0] = '\0';
799    bkpinfo->call_before_iso[0] = '\0';
800    bkpinfo->call_make_iso[0] = '\0';
801    bkpinfo->call_burn_iso[0] = '\0';
802    bkpinfo->call_after_iso[0] = '\0';
803    bkpinfo->kernel_path[0] = '\0';
804    bkpinfo->netfs_mount[0] = '\0';
805    bkpinfo->netfs_proto = NULL;
806    bkpinfo->netfs_user = NULL;
807    bkpinfo->netfs_remote_dir[0] = '\0';
808    bkpinfo->exclude_paths = NULL;
809    bkpinfo->subdir = NULL;
810    bkpinfo->postnuke_tarball[0] = '\0';
811    bkpinfo->wipe_media_first = FALSE;
812    bkpinfo->differential = 0;
813    bkpinfo->please_dont_eject = FALSE;
814    bkpinfo->cdrw_speed = 0;
815    bkpinfo->manual_cd_tray = FALSE;
816    bkpinfo->nonbootable_backup = FALSE;
817    bkpinfo->make_cd_use_lilo = FALSE;
818    bkpinfo->use_obdr = FALSE;
819    bkpinfo->restore_mode = interactive;
820}
821
822
823
824
825/**
826 * Get the remaining free space (in MB) on @p partition.
827 * @param partition The partition to check free space on (either a device or a mountpoint).
828 * @return The free space on @p partition, in MB.
829 */
830long free_space_on_given_partition(char *partition)
831{
832    char *out_sz = NULL;
833    char *command = NULL;
834    long res;
835
836    assert_string_is_neither_NULL_nor_zerolength(partition);
837
838    mr_asprintf(&command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
839    if (system(command)) {
840        mr_free(command);
841        return (-1);
842    }                           // partition does not exist
843    mr_free(command);
844
845    mr_asprintf(&command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
846            partition);
847    mr_asprintf(&out_sz, "%s", call_program_and_get_last_line_of_output(command));
848    mr_free(command);
849
850    if (strlen(out_sz) == 0) {
851        mr_free(out_sz);
852        return (-1);
853    }                           // error within df, probably
854    res = atol(out_sz);
855    mr_free(out_sz);
856    return (res);
857}
858
859
860
861/**
862 * Check the user's system for sanity. Checks performed:
863 * - make sure user has enough RAM (32mb required, 64mb recommended)
864 * - make sure user has enough free space in @c /
865 * - check kernel for ramdisk support
866 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
867 * - make sure CD-ROM is unmounted
868 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
869 *
870 * @return number of problems with the user's setup (0 for success)
871 */
872int some_basic_system_sanity_checks()
873{
874
875    /*@ buffers ************ */
876    char *tmp = NULL;
877
878    /*@ int's *************** */
879    int retval = 0;
880
881    mvaddstr_and_log_it(g_currentY, 0,
882                        "Checking sanity of your Linux distribution");
883#ifndef __FreeBSD__
884    if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
885        && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
886        log_it
887            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
888        run_program_and_log_output
889            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
890    }
891    mr_asprintf(&tmp, "%s",
892           call_program_and_get_last_line_of_output
893           ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
894    if (atol(tmp) < 35000) {
895        retval++;
896        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
897    }
898    if (atol(tmp) < 66000) {
899        log_to_screen
900            ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
901    }
902    mr_free(tmp);
903#endif
904
905    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
906        retval++;
907        log_to_screen
908            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
909        fatal_error
910            ("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. :)");
911    }
912#ifndef __FreeBSD__
913    if (run_program_and_log_output
914        ("grep ramdisk /proc/devices", FALSE)) {
915        /* Some SuSE have ramdisk as modules, so insert it first, then test again */
916        run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
917        if (run_program_and_log_output
918            ("grep ramdisk /proc/devices", FALSE)) {
919            if (!ask_me_yes_or_no
920                ("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?"))
921            {
922                //          retval++;
923                log_to_screen
924                    ("It looks as if your kernel lacks ramdisk and initrd support.");
925                log_to_screen
926                    ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
927            }
928        }
929    }
930#endif
931    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
932    if (system("which genisoimage > /dev/null 2> /dev/null")) {
933        retval += whine_if_not_found("mkisofs");
934    }
935    if (system("which wodim > /dev/null 2> /dev/null")) {
936        retval += whine_if_not_found("cdrecord");
937    }
938    retval += whine_if_not_found("bzip2");
939    retval += whine_if_not_found("gzip");
940    retval += whine_if_not_found("awk");
941    retval += whine_if_not_found("md5sum");
942    retval += whine_if_not_found("strings");
943    retval += whine_if_not_found("mindi");
944    retval += whine_if_not_found("buffer");
945
946    // abort if Windows partition but no ms-sys and parted
947    if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
948        log_to_screen("I think you have a Windows 9x partition.");
949        retval += whine_if_not_found("parted");
950    }
951
952    if (!find_home_of_exe("cmp")) {
953        whine_if_not_found("cmp");
954    }
955    run_program_and_log_output
956        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
957    mr_asprintf(&tmp, "%s",
958           call_program_and_get_last_line_of_output
959           ("mount | grep -E \"cdr(om|w)\""));
960    if (strcmp("", tmp)) {
961        if (strstr(tmp, "autofs")) {
962            log_to_screen
963                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
964            log_to_screen
965                ("if a CD actually is inserted. If a CD is inserted, please");
966            log_to_screen("eject it. Thank you.");
967            log_it
968                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
969        } else
970            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
971            retval++;
972            mr_free(tmp);
973            fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
974        }
975    }
976    mr_free(tmp);
977
978    run_program_and_log_output("cat /etc/fstab", 5);
979#ifdef __FreeBSD__
980    run_program_and_log_output("vinum printconfig", 5);
981#else
982    run_program_and_log_output("cat /etc/raidtab", 5);
983#endif
984
985    if (run_program_and_log_output("mindi -V", 1)) {
986        log_to_screen("Could not ascertain mindi's version number.");
987        log_to_screen
988            ("You have not installed Mondo and/or Mindi properly.");
989        log_to_screen("Please uninstall and reinstall them both.");
990        fatal_error("Please reinstall Mondo and Mindi.");
991    }
992    mr_asprintf(&tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
993    if (run_program_and_log_output(tmp, 5)) {
994        mr_free(tmp);
995        mr_asprintf(&tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
996        log_to_screen(tmp);
997        log_to_screen
998            ("Please run that command by hand and examine /var/log/mindi.log");
999        log_to_screen
1000            ("for more information. Perhaps your /etc/fstab file is insane.");
1001        log_to_screen
1002            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1003        retval++;
1004    }
1005    mr_free(tmp);
1006
1007    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1008        && !does_file_exist("/etc/raidtab")) {
1009        log_to_screen
1010            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1011        create_raidtab_from_mdstat("/etc/raidtab");
1012    }
1013
1014    if (retval) {
1015        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1016    } else {
1017        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1018    }
1019    return (retval);
1020}
1021
1022/**
1023 * Retrieve the line containing @p label from the config file.
1024 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1025 * @param label What to read from the file.
1026 * @param value Where to put it.
1027 * @return 0 for success, 1 for failure.
1028 */
1029int read_cfg_var(char *config_file, char *label, char *value)
1030{
1031    /*@ buffer ****************************************************** */
1032    char *command = NULL;
1033    char *tmp = NULL;
1034
1035    /*@ end vars *************************************************** */
1036
1037    assert_string_is_neither_NULL_nor_zerolength(config_file);
1038    assert_string_is_neither_NULL_nor_zerolength(label);
1039    if (!does_file_exist(config_file)) {
1040        mr_asprintf(&tmp, "(read_cfg_var) Cannot find %s config file",
1041                config_file);
1042        log_to_screen(tmp);
1043        mr_free(tmp);
1044
1045        value[0] = '\0';
1046        return (1);
1047    } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1048        log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1049        return (0);
1050    } else {
1051        mr_asprintf(&command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1052                label, config_file);
1053        strcpy(value, call_program_and_get_last_line_of_output(command));
1054        mr_free(command);
1055
1056        if (strlen(value) == 0) {
1057            return (1);
1058        } else {
1059            return (0);
1060        }
1061    }
1062}
1063
1064
1065
1066/**
1067 * Remount @c supermount if it was unmounted earlier.
1068 */
1069void remount_supermounts_if_necessary()
1070{
1071    if (g_remount_cdrom_at_end) {
1072        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1073    }
1074    if (g_remount_floppy_at_end) {
1075        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1076    }
1077}
1078
1079/**
1080 * Unmount @c supermount if it's mounted.
1081 */
1082void unmount_supermounts_if_necessary()
1083{
1084    if (run_program_and_log_output
1085        ("mount | grep cdrom | grep super", FALSE) == 0) {
1086        g_remount_cdrom_at_end = TRUE;
1087        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1088    }
1089    if (run_program_and_log_output
1090        ("mount | grep floppy | grep super", FALSE) == 0) {
1091        g_remount_floppy_at_end = TRUE;
1092        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1093    }
1094}
1095
1096/**
1097 * Whether we had to stop autofs (if so, restart it at end).
1098 */
1099bool g_autofs_stopped = FALSE;
1100
1101/**
1102 * Path to the autofs initscript ("" if none exists).
1103 */
1104char g_autofs_exe[MAX_STR_LEN];
1105
1106/**
1107 * Autofs initscript in Xandros Linux distribution.
1108 */
1109#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1110
1111/**
1112 * Autofs initscript in most Linux distributions.
1113 */
1114#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1115
1116/**
1117 * If autofs is mounted, stop it (restart at end).
1118 */
1119void stop_autofs_if_necessary()
1120{
1121    char *tmp = NULL;
1122
1123    g_autofs_exe[0] = '\0';
1124    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1125        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1126    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1127        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1128    }
1129
1130    if (!g_autofs_exe[0]) {
1131        log_msg(3, "No autofs detected.");
1132    } else {
1133        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1134        // FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1135        mr_asprintf(&tmp, "%s stop", g_autofs_exe);
1136        if (run_program_and_log_output(tmp, 2)) {
1137            log_it("Failed to stop autofs - I assume it wasn't running");
1138        } else {
1139            g_autofs_stopped = TRUE;
1140            log_it("Stopped autofs OK");
1141        }
1142        mr_free(tmp);
1143    }
1144}
1145
1146/**
1147 * If autofs was stopped earlier, restart it.
1148 */
1149void restart_autofs_if_necessary()
1150{
1151    char *tmp = NULL;
1152
1153    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1154        log_msg(3, "No autofs detected.");
1155        return;
1156    }
1157    mr_asprintf(&tmp, "%s start", g_autofs_exe);
1158    if (run_program_and_log_output(tmp, 2)) {
1159        log_it("Failed to start autofs");
1160    } else {
1161        g_autofs_stopped = FALSE;
1162        log_it("Started autofs OK");
1163    }
1164    mr_free(tmp);
1165}
1166
1167
1168/**
1169 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1170 */
1171void mount_boot_if_necessary()
1172{
1173    char *tmp = NULL;
1174    char *command = NULL;
1175
1176    log_msg(1, "Started sub");
1177    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1178    g_boot_mountpt[0] = '\0';
1179    log_msg(4, "Done. Great. Seeting command to something");
1180    mr_asprintf(&command, "%s",
1181           "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[   ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1182    log_msg(4, "Cool. Command = '%s'", command);
1183    mr_asprintf(&tmp, "%s", call_program_and_get_last_line_of_output(command));
1184    mr_free(command);
1185
1186    log_msg(4, "tmp = '%s'", tmp);
1187    if (tmp[0]) {
1188        log_it("/boot is at %s according to /etc/fstab", tmp);
1189        mr_asprintf(&command, "mount | grep -Ew '/boot'");
1190        mr_free(tmp);
1191        mr_asprintf(&tmp, call_program_and_get_last_line_of_output(command));
1192        mr_free(command);
1193
1194        if (!strcmp(tmp,"")) {
1195            if (((strstr(tmp, "LABEL=") != NULL) || (strstr(tmp,"UUID=")) != NULL)) {
1196                if (!run_program_and_log_output("mount /boot", 5)) {
1197                    strcpy(g_boot_mountpt, "/boot");
1198                    log_msg(1, "Mounted /boot");
1199                } else {
1200                    log_it("...ignored cos it's a label or uuid :-)");
1201                }
1202            } else {
1203                mr_asprintf(&command, "mount | grep -E '^%s'", tmp);
1204                log_msg(3, "command = %s", command);
1205                if (run_program_and_log_output(command, 5)) {
1206                    strcpy(g_boot_mountpt, tmp);
1207                    mr_free(tmp);
1208                    mr_asprintf(&tmp,
1209                            "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1210                            g_boot_mountpt);
1211                    log_it(tmp);
1212                    mr_free(tmp);
1213
1214                    mr_asprintf(&tmp, "mount %s", g_boot_mountpt);
1215                    if (run_program_and_log_output(tmp, 5)) {
1216                        g_boot_mountpt[0] = '\0';
1217                        log_msg(1, "Plan B");
1218                        if (!run_program_and_log_output("mount /boot", 5)) {
1219                            strcpy(g_boot_mountpt, "/boot");
1220                            log_msg(1, "Plan B worked");
1221                        } else {
1222                            log_msg(1,
1223                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1224                        }
1225                    }
1226                    mr_free(tmp);
1227                }
1228                mr_free(command);
1229            }
1230        }
1231    }
1232    log_msg(1, "Ended sub");
1233}
1234
1235
1236/**
1237 * If we mounted /boot earlier, unmount it.
1238 */
1239void unmount_boot_if_necessary()
1240{
1241    char *tmp = NULL;
1242
1243    log_msg(3, "starting");
1244    if (g_boot_mountpt[0]) {
1245        mr_asprintf(&tmp, "umount %s", g_boot_mountpt);
1246        if (run_program_and_log_output(tmp, 5)) {
1247            log_it("WARNING - unable to unmount /boot");
1248        }
1249        mr_free(tmp);
1250    }
1251    log_msg(3, "leaving");
1252}
1253
1254
1255
1256/**
1257 * Write a line to a configuration file. Writes a line of the form,
1258 * @c label @c value.
1259 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1260 * @param label What to call this bit of data you're writing.
1261 * @param value The bit of data you're writing.
1262 * @return 0 for success, 1 for failure.
1263 */
1264int write_cfg_var(char *config_file, char *label, char *value)
1265{
1266    /*@ buffers ***************************************************** */
1267    char *command = NULL;
1268    char *tempfile = NULL;
1269    char *tmp = NULL;
1270
1271
1272    /*@ end vars *************************************************** */
1273    assert_string_is_neither_NULL_nor_zerolength(config_file);
1274    assert_string_is_neither_NULL_nor_zerolength(label);
1275    assert(value != NULL);
1276    if (!does_file_exist(config_file)) {
1277        mr_asprintf(&tmp, "(write_cfg_file) Cannot find %s config file",
1278                config_file);
1279        log_to_screen(tmp);
1280        mr_free(tmp);
1281        return (1);
1282    }
1283    mr_asprintf(&tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1284    if (does_file_exist(config_file)) {
1285        mr_asprintf(&command, "grep -vE '^%s .*$' %s > %s",
1286                label, config_file, tempfile);
1287        paranoid_system(command);
1288        mr_free(command);
1289    }
1290    mr_asprintf(&command, "echo \"%s %s\" >> %s", label, value, tempfile);
1291    paranoid_system(command);
1292    mr_free(command);
1293
1294    mr_asprintf(&command, "mv -f %s %s", tempfile, config_file);
1295    paranoid_system(command);
1296    mr_free(command);
1297    unlink(tempfile);
1298    mr_free(tempfile);
1299    return (0);
1300}
1301
1302
1303/**
1304 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1305 * information to the logfile.
1306 */
1307void standard_log_debug_msg(int debug_level, const char *szFile,
1308                            const char *szFunction, int nLine,
1309                            const char *fmt, ...)
1310{
1311    va_list args;
1312    int i;
1313    static int depth = 0;
1314    FILE *fout;
1315
1316    if (depth > 5) {
1317        depth--;
1318        return;
1319    }
1320    depth++;
1321
1322    if (debug_level <= g_loglevel) {
1323        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1324            return;
1325        }       // fatal_error("Failed to openout to logfile - sheesh..."); }
1326
1327        // add tabs to distinguish log levels
1328        if (debug_level > 0) {
1329            for (i = 1; i < debug_level; i++)
1330                fprintf(fout, "\t");
1331            if (getpid() == g_main_pid)
1332                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1333            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1334                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1335            else
1336                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1337        }
1338        va_start(args, fmt);
1339        vfprintf(fout, fmt, args);
1340        va_end(args);
1341
1342        // do not slow down the progran if standard debug level
1343        // must be enabled: if no flush, the log won't be up-to-date if there
1344        // is a segfault
1345        //if (g_dwDebugLevel != 1)
1346
1347        fprintf(fout, "\n");
1348        paranoid_fclose(fout);
1349    }
1350    depth--;
1351}
1352
1353/**
1354 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1355 */
1356void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1357                       ...) = standard_log_debug_msg;
1358
1359
1360/**
1361 * If @p y, malloc @p x, else free @p x.
1362 * @bug This function seems orphaned. Please remove.
1363 */
1364#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1365
1366/**
1367 * Allocate or free important globals, depending on @p mal.
1368 * @param mal If TRUE, malloc; if FALSE, free.
1369 */
1370void do_libmondo_global_strings_thing(int mal)
1371{
1372    if (mal) {
1373        malloc_string(g_boot_mountpt);
1374        malloc_string(g_mondo_home);
1375        /*
1376        malloc_string(g_tmpfs_mountpt);
1377        */
1378        malloc_string(g_serial_string);
1379        malloc_string(g_magicdev_command);
1380    } else {
1381        paranoid_free(g_boot_mountpt);
1382        paranoid_free(g_mondo_home);
1383        /*
1384        paranoid_free(g_tmpfs_mountpt);
1385        */
1386        paranoid_free(g_serial_string);
1387        paranoid_free(g_magicdev_command);
1388
1389    }
1390
1391    /*
1392       char**list_of_arrays[] = {
1393       &g_boot_mountpt,
1394       &g_mondo_home,
1395       &g_tmpfs_mountpt,
1396       &g_serial_string,
1397       &g_magicdev_command,
1398       NULL};
1399
1400       char**ppcurr;
1401       int i;
1402
1403       for(i=0;list_of_arrays[i];i++)
1404       {
1405       log_msg(5, "Allocating %d", i);
1406       ppcurr = list_of_arrays[i];
1407       if (mal)
1408       { *ppcurr = malloc(MAX_STR_LEN); }
1409       else
1410       {
1411       if (*ppcurr)
1412       {
1413       free(*ppcurr);
1414       }
1415       }
1416       }
1417       log_msg(5, "Returning");
1418     */
1419}
1420
1421/**
1422 * Allocate important globals.
1423 * @see do_libmondo_global_strings_thing
1424 */
1425void malloc_libmondo_global_strings(void)
1426{
1427    do_libmondo_global_strings_thing(1);
1428}
1429
1430/**
1431 * Free important globals.
1432 * @see do_libmondo_global_strings_thing
1433 */
1434void free_libmondo_global_strings(void)
1435{
1436    do_libmondo_global_strings_thing(0);
1437}
1438
1439
1440
1441/**
1442 * Stop @c magicdev if it's running.
1443 * The command used to start it is saved in @p g_magicdev_command.
1444 */
1445void stop_magicdev_if_necessary()
1446{
1447    strcpy(g_magicdev_command,
1448           call_program_and_get_last_line_of_output
1449           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1450    if (g_magicdev_command[0]) {
1451        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1452        paranoid_system("killall magicdev");
1453    }
1454}
1455
1456
1457/**
1458 * Restart magicdev if it was stopped.
1459 */
1460void restart_magicdev_if_necessary()
1461{
1462    char *tmp = NULL;
1463
1464    if (g_magicdev_command && g_magicdev_command[0]) {
1465        mr_asprintf(&tmp, "%s &", g_magicdev_command);
1466        paranoid_system(tmp);
1467        mr_free(tmp);
1468    }
1469}
1470
1471/* @} - end of utilityGroup */
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