source: branches/2.2.6/mondo/src/common/libmondo-tools.c @ 1966

Last change on this file since 1966 was 1966, checked in by bruno, 10 years ago
  • Begin modifications to allow mondorestore to use handle_incoming_parameters so that it could take command line params as well.
  • Property svn:keywords set to Id
File size: 40.5 KB
Line 
1/* libmondo-tools.c                                  misc tools
2   $Id: libmondo-tools.c 1966 2008-05-29 08:38:12Z 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 1966 2008-05-29 08:38:12Z 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.
66 */
67char *g_tmpfs_mountpt = NULL;
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    long avm = 0;
429    char *colon;
430    char *cdr_exe;
431    char *tmp;
432    char call_before_iso_user[MAX_STR_LEN] = "\0";
433    int rdsiz_MB;
434    char *iso_dev;
435    char *iso_mnt;
436    char *iso_tmp;
437    char *iso_path;
438
439    assert(bkpinfo != NULL);
440    malloc_string(extra_cdrom_params);
441    malloc_string(mondo_mkisofs_sz);
442    malloc_string(command);
443    malloc_string(mtpt);
444    malloc_string(hostname);
445    malloc_string(ip_address);
446    malloc_string(cdr_exe);
447    malloc_string(tmp);
448    malloc_string(iso_dev);
449    malloc_string(iso_mnt);
450    malloc_string(iso_tmp);
451    malloc_string(iso_path);
452    bkpinfo->optimal_set_size =
453        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
454        1024;
455
456    log_msg(1, "Foo");
457    if (bkpinfo->backup_media_type == tape) {
458        log_msg(1, "Bar");
459        sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
460        log_msg(1, "tmp = '%s'", tmp);
461        if (run_program_and_log_output(tmp, 3)) {
462            fatal_error
463                ("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.");
464        }
465    }
466    make_hole_for_dir(bkpinfo->scratchdir);
467    if (bkpinfo->backup_media_type == iso)
468        make_hole_for_dir(bkpinfo->isodir);
469
470    run_program_and_log_output("uname -a", 5);
471    run_program_and_log_output("cat /etc/*-release", 5);
472    run_program_and_log_output("cat /etc/*issue*", 5);
473    sprintf(g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
474    sprintf(command, "mkdir -p %s", g_tmpfs_mountpt);
475    paranoid_system(command);
476    rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
477#ifdef __FreeBSD__
478    strcpy(tmp,
479           call_program_and_get_last_line_of_output
480           ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
481    avm += atol(tmp);
482    strcpy(tmp,
483           call_program_and_get_last_line_of_output
484           ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
485    avm += atol(tmp);
486    sprintf(command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
487            g_tmpfs_mountpt);
488#else
489    strcpy(tmp,
490           call_program_and_get_last_line_of_output
491           ("free | grep ':' | tr -s ' ' '\t' | cut -f2 | head -n1"));
492    avm += atol(tmp);
493    sprintf(command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
494            g_tmpfs_mountpt, rdsiz_MB, 'm');
495    run_program_and_log_output("cat /proc/cpuinfo", 5);
496    run_program_and_log_output
497        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
498         5);
499#endif
500    if (avm / 1024 > rdsiz_MB * 3) {
501        if (run_program_and_log_output(command, 5)) {
502            g_tmpfs_mountpt[0] = '\0';
503            log_it("Failed to mount tmpfs");
504        } else {
505            log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
506        }
507    } else {
508        g_tmpfs_mountpt[0] = '\0';
509        log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
510    }
511
512    if (bkpinfo->use_lzo) {
513        strcpy(bkpinfo->zip_exe, "lzop");
514        strcpy(bkpinfo->zip_suffix, "lzo");
515    } else if (bkpinfo->use_gzip) {
516        strcpy(bkpinfo->zip_exe, "gzip");
517        strcpy(bkpinfo->zip_suffix, "gz");
518    } else if (bkpinfo->compression_level != 0) {
519        strcpy(bkpinfo->zip_exe, "bzip2");
520        strcpy(bkpinfo->zip_suffix, "bz2");
521    } else {
522        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
523    }
524
525// DVD
526
527    if (bkpinfo->backup_media_type == dvd) {
528        extra_cdrom_params[0] = '\0';
529        mondo_mkisofs_sz[0] = '\0';
530        if (find_home_of_exe("growisofs")) {
531            strcpy(cdr_exe, "growisofs");
532        }                       // unlikely to be used
533        else {
534            fatal_error("Please install growisofs.");
535        }
536        if (bkpinfo->nonbootable_backup) {
537            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
538        } else if
539#ifdef __FreeBSD__
540            (TRUE)
541#else
542            (bkpinfo->make_cd_use_lilo)
543#endif
544#ifdef __IA64__
545    {
546        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
547    }
548#else
549    {
550        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
551    }
552#endif
553        else
554        {
555            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
556        }
557        if (bkpinfo->manual_cd_tray) {
558            fatal_error("Manual CD tray + DVD not supported yet.");
559            // -m isn't supported by growisofs, BTW...
560        } else {
561            sprintf(bkpinfo->call_make_iso,
562                    "%s %s -Z %s . 2>> _ERR_",
563                    mondo_mkisofs_sz,
564                    extra_cdrom_params, bkpinfo->media_device);
565        }
566        if (getenv ("SUDO_COMMAND")) {
567            sprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
568            if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
569                popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
570                fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
571            }       
572        }
573        log_msg(2, "call_make_iso (DVD res) is ... %s",
574                bkpinfo->call_make_iso);
575    }                           // end of DVD code
576
577// CD-R or CD-RW
578    if (bkpinfo->backup_media_type == cdrw
579        || bkpinfo->backup_media_type == cdr) {
580        extra_cdrom_params[0] = '\0';
581        if (!bkpinfo->manual_cd_tray) {
582            strcat(extra_cdrom_params, "-waiti ");
583        }
584        if (bkpinfo->backup_media_type == cdrw) {
585            strcat(extra_cdrom_params, "blank=fast ");
586        }
587        if (find_home_of_exe("cdrecord")) {
588            strcpy(cdr_exe, "cdrecord");
589        } else if (find_home_of_exe("dvdrecord")) {
590            strcpy(cdr_exe, "dvdrecord");
591        } else {
592            fatal_error("Please install either cdrecord or dvdrecord.");
593        }
594        if (bkpinfo->nonbootable_backup) {
595            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
596        } else if
597#ifdef __FreeBSD__
598            (TRUE)
599#else
600            (bkpinfo->make_cd_use_lilo)
601#endif
602#ifdef __IA64__
603    {
604        strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
605    }
606#else
607    {
608        strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
609    }
610#endif
611        else
612        {
613            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
614        }
615        if (bkpinfo->manual_cd_tray) {
616            if (bkpinfo->call_before_iso[0] == '\0') {
617            sprintf(bkpinfo->call_before_iso,
618                        "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_",
619                        mondo_mkisofs_sz, bkpinfo->tmpdir);
620                } else {
621                strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
622                sprintf (bkpinfo->call_before_iso,
623                                    "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )",
624                        mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
625            }
626            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
627            sprintf(bkpinfo->call_make_iso,
628                    "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS,
629                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
630                    extra_cdrom_params, bkpinfo->media_device,
631                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
632        } else {
633            sprintf(bkpinfo->call_make_iso,
634                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
635                    mondo_mkisofs_sz, cdr_exe,
636                    (bkpinfo->please_dont_eject) ? " " : "-eject",
637                    extra_cdrom_params, bkpinfo->media_device,
638                    bkpinfo->cdrw_speed);
639        }
640    }                           // end of CD code
641
642    /*
643       if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
644       {
645       sprintf (tmp,
646       "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
647       bkpinfo->media_device, bkpinfo->internal_tape_block_size);
648       if (system(tmp))
649       {
650       retval++;
651       fprintf (stderr,
652       "Cannot write to tape device. Is the tape set read-only?\n");
653       }
654       } // end of tape code
655     */
656
657
658    if (bkpinfo->backup_media_type == iso) {
659
660/* Patch by Conor Daly <conor.daly@met.ie>
661 * 23-june-2004
662 * Break up isodir into iso_mnt and iso_path
663 * These will be used along with iso-dev at restore time
664 * to locate the ISOs where ever they're mounted
665 */
666
667        log_it("isodir = %s", bkpinfo->isodir);
668        sprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1",
669                bkpinfo->isodir);
670        log_it("command = %s", command);
671        log_it("res of it = %s",
672               call_program_and_get_last_line_of_output(command));
673        sprintf(iso_dev, "%s",
674                call_program_and_get_last_line_of_output(command));
675        sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
676        write_one_liner_data_file(tmp,
677                                  call_program_and_get_last_line_of_output
678                                  (command));
679
680        sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
681                iso_dev);
682        log_it("command = %s", command);
683        log_it("res of it = %s",
684               call_program_and_get_last_line_of_output(command));
685        sprintf(iso_mnt, "%s",
686                call_program_and_get_last_line_of_output(command));
687        sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
688        write_one_liner_data_file(tmp,
689                                  call_program_and_get_last_line_of_output
690                                  (command));
691        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
692        sprintf(iso_tmp, "%s", bkpinfo->isodir);
693        if (strlen(iso_tmp) < strlen(iso_mnt)) {
694            iso_path[0] = '\0';
695        } else {
696            sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
697        }
698        sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
699        write_one_liner_data_file(tmp, iso_path);
700        log_it("isodir: %s", iso_path);
701        sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
702        write_one_liner_data_file(tmp, bkpinfo->prefix);
703        log_it("iso-prefix: %s",  bkpinfo->prefix);
704
705/* End patch */
706    }                           // end of iso code
707
708    if (bkpinfo->backup_media_type == nfs) {
709        strcpy(hostname, bkpinfo->nfs_mount);
710        colon = strchr(hostname, ':');
711        if (!colon) {
712            log_it("nfs mount doesn't have a colon in it");
713            retval++;
714        } else {
715            struct hostent *hent;
716
717            *colon = '\0';
718            hent = gethostbyname(hostname);
719            if (!hent) {
720                log_it("Can't resolve NFS mount (%s): %s", hostname,
721                       hstrerror(h_errno));
722                retval++;
723            } else {
724                strcpy(ip_address, inet_ntoa
725                       ((struct in_addr)
726                        *((struct in_addr *) hent->h_addr)));
727                strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
728                strcpy(bkpinfo->nfs_mount, ip_address);
729            }
730        }
731        store_nfs_config();
732    }
733
734    log_it("Finished processing incoming params");
735    if (retval) {
736        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
737    }
738    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
739        log_it("tmpdir or scratchdir are blank/missing");
740        retval++;
741    }
742    if (bkpinfo->include_paths[0] == '\0') {
743        //      fatal_error ("Why no backup path?");
744        strcpy(bkpinfo->include_paths, "/");
745    }
746    chmod(bkpinfo->scratchdir, 0700);
747    g_backup_media_type = bkpinfo->backup_media_type;
748    paranoid_free(mtpt);
749    paranoid_free(extra_cdrom_params);
750    paranoid_free(mondo_mkisofs_sz);
751    paranoid_free(command);
752    paranoid_free(hostname);
753    paranoid_free(ip_address);
754    paranoid_free(cdr_exe);
755    paranoid_free(tmp);
756    paranoid_free(iso_dev);
757    paranoid_free(iso_mnt);
758    paranoid_free(iso_tmp);
759    paranoid_free(iso_path);
760    return (retval);
761}
762
763
764
765/**
766 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
767 * Seeds the random-number generator, loads important modules, checks the sanity
768 * of the user's Linux distribution, and deletes logfile.
769 * @param bkpinfo The backup information structure. Will be initialized.
770 * @return number of errors (0 for success)
771 */
772int pre_param_configuration()
773{
774    int res = 0;
775    char *tmp = NULL;
776
777    make_hole_for_dir(MNT_CDROM);
778    assert(bkpinfo != NULL);
779    srandom((unsigned long) (time(NULL)));
780    insmod_crucial_modules();
781    if (bkpinfo->disaster_recovery) {
782        if (!does_nonMS_partition_exist()) {
783            fatal_error
784                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
785        }
786    }
787
788    unlink(MONDO_TRACEFILE);
789    asprintf(&tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
790    run_program_and_log_output(tmp, FALSE);
791    paranoid_free(tmp);
792    if (find_and_store_mondoarchives_home(g_mondo_home)) {
793        fprintf(stderr,
794                "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");
795        res++;
796        return (res);
797    }
798    res += some_basic_system_sanity_checks();
799    if (res) {
800        log_it("Your distribution did not pass Mondo's sanity test.");
801    }
802    g_current_media_number = 1;
803    bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
804    return (res);
805}
806
807void setup_tmpdir(char *path) {
808   
809    char *tmp = NULL;
810    char *p = NULL;
811
812    if (bkpinfo->tmpdir != NULL) {
813        /* purging a potential old tmpdir */
814        asprintf(&tmp,"rm -Rf %s",bkpinfo->tmpdir);
815        system(tmp);
816        paranoid_free(tmp);
817    }
818       
819    if (path != NULL) {
820        asprintf(&tmp, "%s/mondo.tmp.XXXXXX", path);
821    } else if (getenv("TMPDIR")) {
822        asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
823    } else if (getenv("TMP")) {
824        asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
825    } else {
826        asprintf(&tmp, "/tmp/mondo.tmp.XXXXXX");
827    }
828    p = mkdtemp(tmp);
829    if (p == NULL) {
830        log_it("Failed to create global tmp directory %s for Mondo.",tmp);
831        finish(-1);
832    }
833    strcpy(bkpinfo->tmpdir,p);
834    paranoid_free(tmp);
835}
836
837
838/**
839 * Reset all fields of the backup information structure to a sensible default.
840 * @param bkpinfo The @c bkpinfo to reset.
841 */
842void reset_bkpinfo()
843{
844    int i;
845
846    log_msg(1, "Hi");
847    assert(bkpinfo != NULL);
848    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
849
850    bkpinfo->media_device[0] = '\0';
851    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
852        bkpinfo->media_size[i] = -1;
853    }
854    bkpinfo->boot_loader = '\0';
855    bkpinfo->boot_device[0] = '\0';
856    bkpinfo->zip_exe[0] = '\0';
857    bkpinfo->zip_suffix[0] = '\0';
858    bkpinfo->image_devs[0] = '\0';
859    bkpinfo->compression_level = 3;
860    bkpinfo->use_lzo = FALSE;
861    bkpinfo->use_gzip = FALSE;
862    bkpinfo->do_not_compress_these[0] = '\0';
863    bkpinfo->verify_data = FALSE;
864    bkpinfo->backup_data = FALSE;
865    bkpinfo->restore_data = FALSE;
866    bkpinfo->use_star = FALSE;
867    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
868    bkpinfo->disaster_recovery =
869        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
870    if (bkpinfo->disaster_recovery) {
871        strcpy(bkpinfo->isodir, "/");
872    } else {
873        strcpy(bkpinfo->isodir, "/root/images/mondo");
874    }
875    strcpy(bkpinfo->prefix, STD_PREFIX);
876    sensibly_set_tmpdir_and_scratchdir();
877
878    bkpinfo->optimal_set_size = 0;
879    strcpy(bkpinfo->include_paths, "/");
880    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
881    bkpinfo->include_paths[0] = '\0';
882    bkpinfo->exclude_paths[0] = '\0';
883    bkpinfo->restore_path[0] = '\0';
884    bkpinfo->call_before_iso[0] = '\0';
885    bkpinfo->call_make_iso[0] = '\0';
886    bkpinfo->call_burn_iso[0] = '\0';
887    bkpinfo->call_after_iso[0] = '\0';
888    bkpinfo->kernel_path[0] = '\0';
889    bkpinfo->nfs_mount[0] = '\0';
890    bkpinfo->nfs_remote_dir[0] = '\0';
891    bkpinfo->postnuke_tarball[0] = '\0';
892    bkpinfo->wipe_media_first = FALSE;
893    bkpinfo->differential = 0;
894    bkpinfo->please_dont_eject = FALSE;
895    bkpinfo->cdrw_speed = 0;
896    bkpinfo->manual_cd_tray = FALSE;
897    bkpinfo->nonbootable_backup = FALSE;
898    bkpinfo->make_cd_use_lilo = FALSE;
899    bkpinfo->use_obdr = FALSE;
900}
901
902
903
904
905/**
906 * Get the remaining free space (in MB) on @p partition.
907 * @param partition The partition to check free space on (either a device or a mountpoint).
908 * @return The free space on @p partition, in MB.
909 */
910long free_space_on_given_partition(char *partition)
911{
912    char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
913    long res;
914
915    assert_string_is_neither_NULL_nor_zerolength(partition);
916
917    sprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
918    if (system(command)) {
919        return (-1);
920    }                           // partition does not exist
921    sprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
922            partition);
923    strcpy(out_sz, call_program_and_get_last_line_of_output(command));
924    if (strlen(out_sz) == 0) {
925        return (-1);
926    }                           // error within df, probably
927    res = atol(out_sz);
928    return (res);
929}
930
931
932
933/**
934 * Check the user's system for sanity. Checks performed:
935 * - make sure user has enough RAM (32mb required, 64mb recommended)
936 * - make sure user has enough free space in @c /
937 * - check kernel for ramdisk support
938 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
939 * - make sure CD-ROM is unmounted
940 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
941 *
942 * @return number of problems with the user's setup (0 for success)
943 */
944int some_basic_system_sanity_checks()
945{
946
947    /*@ buffers ************ */
948    char tmp[MAX_STR_LEN];
949    //  char command[MAX_STR_LEN];
950
951    /*@ int's *************** */
952    int retval = 0;
953
954    mvaddstr_and_log_it(g_currentY, 0,
955                        "Checking sanity of your Linux distribution");
956#ifndef __FreeBSD__
957    if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
958        && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
959        log_it
960            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
961        run_program_and_log_output
962            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
963    }
964    strcpy(tmp,
965           call_program_and_get_last_line_of_output
966           ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
967    if (atol(tmp) < 35000) {
968        retval++;
969        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
970    }
971    if (atol(tmp) < 66000) {
972        log_to_screen
973            ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
974    }
975#endif
976
977    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
978        retval++;
979        log_to_screen
980            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
981        fatal_error
982            ("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. :)");
983    }
984#ifndef __FreeBSD__
985    if (run_program_and_log_output
986        ("grep ramdisk /proc/devices", FALSE)) {
987        if (!ask_me_yes_or_no
988            ("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?"))
989        {
990            //          retval++;
991            log_to_screen
992                ("It looks as if your kernel lacks ramdisk and initrd support.");
993            log_to_screen
994                ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
995        }
996    }
997#endif
998    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
999    retval += whine_if_not_found("mkisofs");
1000    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
1001        retval += whine_if_not_found("cdrecord");
1002    }
1003    retval += whine_if_not_found("bzip2");
1004    retval += whine_if_not_found("gzip");
1005    retval += whine_if_not_found("awk");
1006    retval += whine_if_not_found("md5sum");
1007    retval += whine_if_not_found("strings");
1008    retval += whine_if_not_found("mindi");
1009    retval += whine_if_not_found("buffer");
1010
1011    // abort if Windows partition but no ms-sys and parted
1012    if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
1013        log_to_screen("I think you have a Windows 9x partition.");
1014        retval += whine_if_not_found("parted");
1015    }
1016
1017    if (!find_home_of_exe("cmp")) {
1018        if (!find_home_of_exe("true")) {
1019            whine_if_not_found("cmp");
1020        } else {
1021            log_to_screen
1022                ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1023            if (run_program_and_log_output
1024                ("cp -f `which true` /usr/bin/cmp", 0)) {
1025                fatal_error("Failed to create dummy 'cmp' file.");
1026            }
1027        }
1028    }
1029    run_program_and_log_output
1030        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1031    strcpy(tmp,
1032           call_program_and_get_last_line_of_output
1033           ("mount | grep -E \"cdr(om|w)\""));
1034    if (strcmp("", tmp)) {
1035        if (strstr(tmp, "autofs")) {
1036            log_to_screen
1037                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1038            log_to_screen
1039                ("if a CD actually is inserted. If a CD is inserted, please");
1040            log_to_screen("eject it. Thank you.");
1041            log_it
1042                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1043        } else
1044            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1045            retval++;
1046            fatal_error
1047                ("Your CD-ROM drive is mounted. Please unmount it.");
1048        }
1049    }
1050
1051    run_program_and_log_output("cat /etc/fstab", 5);
1052#ifdef __FreeBSD__
1053    run_program_and_log_output("vinum printconfig", 5);
1054#else
1055    run_program_and_log_output("cat /etc/raidtab", 5);
1056#endif
1057
1058    if (run_program_and_log_output("mindi -V", 1)) {
1059        log_to_screen("Could not ascertain mindi's version number.");
1060        log_to_screen
1061            ("You have not installed Mondo and/or Mindi properly.");
1062        log_to_screen("Please uninstall and reinstall them both.");
1063        fatal_error("Please reinstall Mondo and Mindi.");
1064    }
1065    sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1066    if (run_program_and_log_output(tmp, 5)) {
1067        sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1068        log_to_screen(tmp);
1069        log_to_screen
1070            ("Please run that command by hand and examine /var/log/mindi.log");
1071        log_to_screen
1072            ("for more information. Perhaps your /etc/fstab file is insane.");
1073        log_to_screen
1074            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1075        retval++;
1076    }
1077
1078    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1079        && !does_file_exist("/etc/raidtab")) {
1080        log_to_screen
1081            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1082        create_raidtab_from_mdstat("/etc/raidtab");
1083    }
1084
1085    if (retval) {
1086        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1087    } else {
1088        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1089    }
1090    return (retval);
1091}
1092
1093/**
1094 * Retrieve the line containing @p label from the config file.
1095 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1096 * @param label What to read from the file.
1097 * @param value Where to put it.
1098 * @return 0 for success, 1 for failure.
1099 */
1100int read_cfg_var(char *config_file, char *label, char *value)
1101{
1102    /*@ buffer ****************************************************** */
1103    char command[MAX_STR_LEN * 2];
1104    char tmp[MAX_STR_LEN];
1105
1106    /*@ end vars *************************************************** */
1107
1108    assert_string_is_neither_NULL_nor_zerolength(config_file);
1109    assert_string_is_neither_NULL_nor_zerolength(label);
1110    if (!does_file_exist(config_file)) {
1111        sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1112                config_file);
1113        log_to_screen(tmp);
1114        value[0] = '\0';
1115        return (1);
1116    } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1117        log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1118        return (0);
1119    } else {
1120        sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1121                label, config_file);
1122        strcpy(value, call_program_and_get_last_line_of_output(command));
1123        if (strlen(value) == 0) {
1124            return (1);
1125        } else {
1126            return (0);
1127        }
1128    }
1129}
1130
1131
1132
1133/**
1134 * Remount @c supermount if it was unmounted earlier.
1135 */
1136void remount_supermounts_if_necessary()
1137{
1138    if (g_remount_cdrom_at_end) {
1139        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1140    }
1141    if (g_remount_floppy_at_end) {
1142        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1143    }
1144}
1145
1146/**
1147 * Unmount @c supermount if it's mounted.
1148 */
1149void unmount_supermounts_if_necessary()
1150{
1151    if (run_program_and_log_output
1152        ("mount | grep cdrom | grep super", FALSE) == 0) {
1153        g_remount_cdrom_at_end = TRUE;
1154        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1155    }
1156    if (run_program_and_log_output
1157        ("mount | grep floppy | grep super", FALSE) == 0) {
1158        g_remount_floppy_at_end = TRUE;
1159        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1160    }
1161}
1162
1163/**
1164 * Whether we had to stop autofs (if so, restart it at end).
1165 */
1166bool g_autofs_stopped = FALSE;
1167
1168/**
1169 * Path to the autofs initscript ("" if none exists).
1170 */
1171char g_autofs_exe[MAX_STR_LEN];
1172
1173/**
1174 * Autofs initscript in Xandros Linux distribution.
1175 */
1176#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1177
1178/**
1179 * Autofs initscript in most Linux distributions.
1180 */
1181#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1182
1183/**
1184 * If autofs is mounted, stop it (restart at end).
1185 */
1186void stop_autofs_if_necessary()
1187{
1188    char tmp[MAX_STR_LEN];
1189
1190    g_autofs_exe[0] = '\0';
1191    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1192        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1193    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1194        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1195    }
1196
1197    if (!g_autofs_exe[0]) {
1198        log_msg(3, "No autofs detected.");
1199    } else {
1200        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1201// FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1202        sprintf(tmp, "%s stop", g_autofs_exe);
1203        if (run_program_and_log_output(tmp, 2)) {
1204            log_it("Failed to stop autofs - I assume it wasn't running");
1205        } else {
1206            g_autofs_stopped = TRUE;
1207            log_it("Stopped autofs OK");
1208        }
1209    }
1210}
1211
1212/**
1213 * If autofs was stopped earlier, restart it.
1214 */
1215void restart_autofs_if_necessary()
1216{
1217    char tmp[MAX_STR_LEN];
1218
1219    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1220        log_msg(3, "No autofs detected.");
1221        return;
1222    }
1223    sprintf(tmp, "%s start", g_autofs_exe);
1224    if (run_program_and_log_output(tmp, 2)) {
1225        log_it("Failed to start autofs");
1226    } else {
1227        g_autofs_stopped = FALSE;
1228        log_it("Started autofs OK");
1229    }
1230}
1231
1232
1233/**
1234 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1235 */
1236void mount_boot_if_necessary()
1237{
1238    char tmp[MAX_STR_LEN];
1239    char command[MAX_STR_LEN];
1240
1241    log_msg(1, "Started sub");
1242    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1243    g_boot_mountpt[0] = '\0';
1244    log_msg(4, "Done. Great. Seeting command to something");
1245    strcpy(command,
1246           "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[   ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1247    log_msg(4, "Cool. Command = '%s'", command);
1248    strcpy(tmp, call_program_and_get_last_line_of_output(command));
1249    log_msg(4, "tmp = '%s'", tmp);
1250    if (tmp[0]) {
1251        log_it("/boot is at %s according to /etc/fstab", tmp);
1252        strcpy(command, "mount | grep -Ew '/boot'");
1253        strcpy(tmp, call_program_and_get_last_line_of_output(command));
1254        if (!strcmp(tmp,"")) {
1255            if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1256                if (!run_program_and_log_output("mount /boot", 5)) {
1257                    strcpy(g_boot_mountpt, "/boot");
1258                    log_msg(1, "Mounted /boot");
1259                } else {
1260                    log_it("...ignored cos it's a label or uuid :-)");
1261                }
1262            } else {
1263                sprintf(command, "mount | grep -E '^%s'", tmp);
1264                log_msg(3, "command = %s", command);
1265                if (run_program_and_log_output(command, 5)) {
1266                    strcpy(g_boot_mountpt, tmp);
1267                    sprintf(tmp,
1268                            "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1269                            g_boot_mountpt);
1270                    log_it(tmp);
1271                    sprintf(tmp, "mount %s", g_boot_mountpt);
1272                    if (run_program_and_log_output(tmp, 5)) {
1273                        g_boot_mountpt[0] = '\0';
1274                        log_msg(1, "Plan B");
1275                        if (!run_program_and_log_output("mount /boot", 5)) {
1276                            strcpy(g_boot_mountpt, "/boot");
1277                            log_msg(1, "Plan B worked");
1278                        } else {
1279                            log_msg(1,
1280                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1281                        }
1282                    }
1283                }
1284            }
1285        }
1286    }
1287    log_msg(1, "Ended sub");
1288}
1289
1290
1291/**
1292 * If we mounted /boot earlier, unmount it.
1293 */
1294void unmount_boot_if_necessary()
1295{
1296    char tmp[MAX_STR_LEN];
1297
1298    log_msg(3, "starting");
1299    if (g_boot_mountpt[0]) {
1300        sprintf(tmp, "umount %s", g_boot_mountpt);
1301        if (run_program_and_log_output(tmp, 5)) {
1302            log_it("WARNING - unable to unmount /boot");
1303        }
1304    }
1305    log_msg(3, "leaving");
1306}
1307
1308
1309
1310/**
1311 * Write a line to a configuration file. Writes a line of the form,
1312 * @c label @c value.
1313 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1314 * @param label What to call this bit of data you're writing.
1315 * @param value The bit of data you're writing.
1316 * @return 0 for success, 1 for failure.
1317 */
1318int write_cfg_var(char *config_file, char *label, char *value)
1319{
1320    /*@ buffers ***************************************************** */
1321    char command[MAX_STR_LEN * 2];
1322    char tempfile[MAX_STR_LEN];
1323    char tmp[MAX_STR_LEN];
1324
1325
1326    /*@ end vars *************************************************** */
1327    assert_string_is_neither_NULL_nor_zerolength(config_file);
1328    assert_string_is_neither_NULL_nor_zerolength(label);
1329    assert(value != NULL);
1330    if (!does_file_exist(config_file)) {
1331        sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1332                config_file);
1333        log_to_screen(tmp);
1334        return (1);
1335    }
1336    sprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1337    if (does_file_exist(config_file)) {
1338        sprintf(command, "grep -vE '^%s .*$' %s > %s",
1339                label, config_file, tempfile);
1340        paranoid_system(command);
1341    }
1342    sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1343    paranoid_system(command);
1344    sprintf(command, "mv -f %s %s", tempfile, config_file);
1345    paranoid_system(command);
1346    unlink(tempfile);
1347    return (0);
1348}
1349
1350
1351/**
1352 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1353 * information to the logfile.
1354 */
1355void standard_log_debug_msg(int debug_level, const char *szFile,
1356                            const char *szFunction, int nLine,
1357                            const char *fmt, ...)
1358{
1359    va_list args;
1360    int i;
1361    static int depth = 0;
1362    char *tmp;
1363    FILE *fout;
1364
1365    if (depth > 5) {
1366        depth--;
1367        return;
1368    }
1369    depth++;
1370
1371    malloc_string(tmp);
1372
1373    if (debug_level <= g_loglevel) {
1374        va_start(args, fmt);
1375        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1376            return;
1377        }       // fatal_error("Failed to openout to logfile - sheesh..."); }
1378
1379        // add tabs to distinguish log levels
1380        if (debug_level > 0) {
1381            for (i = 1; i < debug_level; i++)
1382                fprintf(fout, "\t");
1383            if (getpid() == g_main_pid)
1384                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1385                        nLine);
1386            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1387                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1388                        nLine);
1389            else
1390                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1391                        szFunction, nLine);
1392        }
1393        vfprintf(fout, fmt, args);
1394
1395        // do not slow down the progran if standard debug level
1396        // must be enabled: if no flush, the log won't be up-to-date if there
1397        // is a segfault
1398        //if (g_dwDebugLevel != 1)
1399
1400        va_end(args);
1401        fprintf(fout, "\n");
1402        paranoid_fclose(fout);
1403    }
1404    depth--;
1405    paranoid_free(tmp);
1406}
1407
1408/**
1409 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1410 */
1411void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1412                       ...) = standard_log_debug_msg;
1413
1414
1415/**
1416 * If @p y, malloc @p x, else free @p x.
1417 * @bug This function seems orphaned. Please remove.
1418 */
1419#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1420
1421/**
1422 * Allocate or free important globals, depending on @p mal.
1423 * @param mal If TRUE, malloc; if FALSE, free.
1424 */
1425void do_libmondo_global_strings_thing(int mal)
1426{
1427    if (mal) {
1428        malloc_string(g_boot_mountpt);
1429        malloc_string(g_mondo_home);
1430        malloc_string(g_tmpfs_mountpt);
1431        malloc_string(g_serial_string);
1432        malloc_string(g_magicdev_command);
1433    } else {
1434        paranoid_free(g_boot_mountpt);
1435        paranoid_free(g_mondo_home);
1436        paranoid_free(g_tmpfs_mountpt);
1437        paranoid_free(g_serial_string);
1438        paranoid_free(g_magicdev_command);
1439    }
1440
1441    /*
1442       char**list_of_arrays[] = {
1443       &g_boot_mountpt,
1444       &g_mondo_home,
1445       &g_tmpfs_mountpt,
1446       &g_serial_string,
1447       &g_magicdev_command,
1448       NULL};
1449
1450       char**ppcurr;
1451       int i;
1452
1453       for(i=0;list_of_arrays[i];i++)
1454       {
1455       log_msg(5, "Allocating %d", i);
1456       ppcurr = list_of_arrays[i];
1457       if (mal)
1458       { *ppcurr = malloc(MAX_STR_LEN); }
1459       else
1460       {
1461       if (*ppcurr)
1462       {
1463       free(*ppcurr);
1464       }
1465       }
1466       }
1467       log_msg(5, "Returning");
1468     */
1469}
1470
1471/**
1472 * Allocate important globals.
1473 * @see do_libmondo_global_strings_thing
1474 */
1475void malloc_libmondo_global_strings(void)
1476{
1477    do_libmondo_global_strings_thing(1);
1478}
1479
1480/**
1481 * Free important globals.
1482 * @see do_libmondo_global_strings_thing
1483 */
1484void free_libmondo_global_strings(void)
1485{
1486    do_libmondo_global_strings_thing(0);
1487}
1488
1489
1490
1491/**
1492 * Stop @c magicdev if it's running.
1493 * The command used to start it is saved in @p g_magicdev_command.
1494 */
1495void stop_magicdev_if_necessary()
1496{
1497    strcpy(g_magicdev_command,
1498           call_program_and_get_last_line_of_output
1499           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1500    if (g_magicdev_command[0]) {
1501        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1502        paranoid_system("killall magicdev");
1503    }
1504}
1505
1506
1507/**
1508 * Restart magicdev if it was stopped.
1509 */
1510void restart_magicdev_if_necessary()
1511{
1512    char *tmp;
1513
1514    malloc_string(tmp);
1515    if (g_magicdev_command && g_magicdev_command[0]) {
1516        sprintf(tmp, "%s &", g_magicdev_command);
1517        paranoid_system(tmp);
1518    }
1519    paranoid_free(tmp);
1520}
1521
1522/* @} - end of utilityGroup */
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