source: MondoRescue/branches/2.2.10/mondo/src/common/libmondo-tools.c @ 2321

Last change on this file since 2321 was 2321, checked in by Bruno Cornec, 11 years ago

r3332@localhost: bruno | 2009-08-07 23:59:34 +0200

  • bkpinfo->tmpchdir is now dynamically allocated
  • reorganize how tmpdir and scratchdir are initialized and the startup of the main sections
  • change of interface for maintain_collection_of_recent_archives, mondo_makefilelist, chop_filelist
  • sensibly_set_tmpdir_and_scratchdir => sensibly_set_scratchdir
  • reset_bkpinfo => init_bkpinfo
  • add function mr_free_bkpinfo
  • Fix a bug in mr_strtok
  • mondoarchive seems to globally work. Newt stuff needs more testing
  • Property svn:keywords set to Id
File size: 39.1 KB
Line 
1/*
2   $Id: libmondo-tools.c 2321 2009-08-18 12:37:55Z 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 2321 2009-08-18 12:37:55Z bruno $";
30
31extern int g_tape_buffer_size_MB;
32extern bool g_text_mode;
33extern int g_currentY;
34extern int g_current_media_number;
35extern char *MONDO_LOGFILE;
36extern char *g_serial_string;
37
38/* Reference to global bkpinfo */
39extern struct s_bkpinfo *bkpinfo;
40
41/**
42 * @addtogroup globalGroup
43 * @{
44 */
45bool g_remount_cdrom_at_end,    ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
46 g_remount_floppy_at_end;       ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
47bool g_cd_recovery;             ///< TRUE if we're making an "autonuke" backup.
48double g_kernel_version;
49
50/**
51 * The place where /boot is mounted.
52 */
53char *g_boot_mountpt = NULL;
54
55/**
56 * The location of Mondo's home directory.
57 */
58char *g_mondo_home = NULL;
59
60/**
61 * The location where tmpfs is mounted, or "" if it's not mounted.
62char *g_tmpfs_mountpt = NULL;
63 */
64char *g_magicdev_command = NULL;
65
66/**
67 * The default maximum level to log messages at or below.
68 */
69int g_loglevel = DEFAULT_DEBUG_LEVEL;
70
71/* @} - end of globalGroup */
72
73
74extern pid_t g_buffer_pid;
75extern pid_t g_main_pid;
76
77extern t_bkptype g_backup_media_type;
78
79extern bool am_I_in_disaster_recovery_mode(void);
80
81/*-----------------------------------------------------------*/
82
83
84/**
85 * @addtogroup utilityGroup
86 * @{
87 */
88/**
89 * Assertion handler. Prints a friendly message to the user,
90 * offering to ignore all, dump core, break to debugger,
91 * exit, or ignore. Intended to be used with an assert() macro.
92 *
93 * @param file The file in which the assertion triggered.
94 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
95 * @param line The line number of the assert() statement.
96 * @param exp The expression that failed (as a string).
97 */
98void _mondo_assert_fail(const char *file,
99                        const char *function, int line, const char *exp)
100{
101    static int ignoring_assertions = 0;
102    bool is_valid = TRUE;
103
104    log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
105           function);
106    if (ignoring_assertions) {
107        log_it("Well, the user doesn't care...");
108        return;
109    }
110#ifndef _XWIN
111    if (!g_text_mode)
112        newtSuspend();
113#endif
114    printf("ASSERTION FAILED: `%s'\n", exp);
115    printf("\tat %s:%d in %s\n\n", file, line, function);
116    printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
117    do {
118        is_valid = TRUE;
119        switch (toupper(getchar())) {
120        case 'A':               // ignore (A)ll
121            ignoring_assertions = 1;
122            break;
123        case 'B':               // a(B)ort
124            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
125            raise(SIGABRT);
126            break;              /* "can't get here" */
127        case 'D':               // (D)ebug, aka asm("int 3")
128#ifdef __IA32__
129            __asm__ __volatile__("int $3"); // break to debugger
130#endif
131            break;
132        case 'E':               // (E)xit
133            fatal_error("Failed assertion -- see above for details");
134            break;              /* "can't get here" */
135        case 'I':               // (I)gnore
136            break;
137            /* These next two work as follows:
138               the `default' catches the user's invalid choice and says so;
139               the '\n' catches the newline on the end and prints the prompt again.
140             */
141        case '\n':
142            printf
143                ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
144            break;
145        default:
146            is_valid = FALSE;
147            printf("Invalid choice.\n");
148            break;
149        }
150    } while (!is_valid);
151
152    if (ignoring_assertions) {
153        log_it("Ignoring ALL assertions from now on.");
154    } else {
155        log_it("Ignoring assertion: %s", exp);
156    }
157
158    getchar();                  // skip \n
159
160#ifndef _XWIN
161    if (!g_text_mode)
162        newtResume();
163#endif
164}
165
166/**
167 * Clean's up users' KDE desktops.
168 * @bug Details about this function are unknown.
169 */
170void clean_up_KDE_desktop_if_necessary(void)
171{
172    char *tmp;
173
174    malloc_string(tmp);
175    strcpy(tmp,
176           "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
177file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
178awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
179else { print $0;};}' $file.old  > $file ; fi ; done");
180    run_program_and_log_output(tmp, 5);
181    paranoid_free(tmp);
182}
183
184
185/**
186 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
187 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
188 *
189 * @param home_sz String to store the home directory ("" if it could not be found).
190 * @return 0 for success, nonzero for failure.
191 */
192int find_and_store_mondoarchives_home(char *home_sz)
193{
194    assert(home_sz != NULL);
195    strcpy(home_sz, MONDO_SHARE);
196    return (0);
197}
198
199
200char *get_architecture(void) {
201#ifdef __IA32__
202#   ifdef __X86_64__
203        return ("x86_64");
204#   else
205        return ("i386");
206#   endif
207#endif
208#ifdef __IA64__
209    return ("ia64");
210#endif
211    return ("unknown");
212}
213
214
215char *get_uname_m(void) {
216
217    struct utsname utsn;
218    char *tmp = NULL;
219
220    uname(&utsn);
221    mr_asprintf(&tmp, "%s", utsn.machine);
222    return (tmp);
223}
224
225
226
227double get_kernel_version(void)
228{
229    char *p, tmp[200];
230    double d;
231#ifdef __FreeBSD__
232    // JOSH - FIXME :)
233    d = 5.2;                    // :-)
234#else
235    strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
236    p = strchr(tmp, '.');
237    if (p) {
238        p = strchr(++p, '.');
239        if (p) {
240            while (*p) {
241                *p = *(p + 1);
242                p++;
243            }
244        }
245    }
246//  log_msg(1, "tmp = '%s'", tmp);
247    d = atof(tmp);
248#endif
249    log_msg(1, "g_kernel_version = %f", d);
250    return (d);
251}
252
253
254
255
256
257/**
258 * Get the current time.
259 * @return number of seconds since the epoch.
260 */
261long get_time()
262{
263    return (long) time((void *) 0);
264}
265
266
267
268
269
270
271
272/**
273 * Initialize a RAID volume structure, setting fields to zero. The
274 * actual hard drive is unaffected.
275 *
276 * @param raidrec The RAID volume structure to initialize.
277 * @note This function is system dependent.
278 */
279#ifdef __FreeBSD__
280void initialize_raidrec(struct vinum_volume *raidrec)
281{
282    int i, j;
283    raidrec->volname[0] = '\0';
284    raidrec->plexes = 0;
285    for (i = 0; i < 9; ++i) {
286        raidrec->plex[i].raidlevel = -1;
287        raidrec->plex[i].stripesize = 0;
288        raidrec->plex[i].subdisks = 0;
289        for (j = 0; j < 9; ++j) {
290            strcpy(raidrec->plex[i].sd[j].which_device, "");
291        }
292    }
293}
294#else
295void initialize_raidrec(struct raid_device_record *raidrec)
296{
297    assert(raidrec != NULL);
298    raidrec->raid_device[0] = '\0';
299    raidrec->raid_level = -9;
300    raidrec->persistent_superblock = 1;
301    raidrec->chunk_size = 64;
302    raidrec->parity = -1;
303    raidrec->data_disks.entries = 0;
304    raidrec->spare_disks.entries = 0;
305    raidrec->parity_disks.entries = 0;
306    raidrec->failed_disks.entries = 0;
307    raidrec->additional_vars.entries = 0;
308}
309#endif
310
311
312
313
314/**
315 * Insert modules that Mondo requires.
316 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
317 * @c msdosfs and @c ext2fs for FreeBSD.
318 */
319void insmod_crucial_modules(void)
320{
321#ifdef __FreeBSD__
322    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
323    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
324#else
325    system("modprobe -a msdos vfat loop &> /dev/null");
326#endif
327}
328
329
330/**
331 * Log a trace message to the trace file.
332 * @bug This function seems orphaned. Please remove.
333 */
334void log_trace(char *o)
335{
336    /*@ pointers **************************************************** */
337    FILE *fout;
338
339    /*@ buffers ***************************************************** */
340    char output[MAX_STR_LEN];
341
342    /*@ int    ****************************************************** */
343    int i;
344
345    /*@ end vars *************************************************** */
346
347    if (o[0] == '\0') {
348        return;
349    }
350    strcpy(output, o);
351    i = (int) strlen(output);
352    if (i <= 0) {
353        return;
354    }
355    if (output[i - 1] < 32) {
356        output[i - 1] = '\0';
357    }
358    if (g_text_mode
359        /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
360        printf("%s\n", output);
361    }
362
363    fout = fopen(MONDO_TRACEFILE, "a");
364    if (fout) {
365        fprintf(fout, "%s\n", output);
366        paranoid_fclose(fout);
367    } else {
368        log_OS_error("Cannot write to tracefile");
369    }
370}
371
372
373
374
375
376/**
377 * Finish configuring the backup information structure. Call this function
378 * to set the parameters that depend on those that can be given on the command
379 * line.
380 *
381 * @param bkpinfo The backup information structure. Fields modified/used:
382 * - Used: @c bkpinfo->backup_data
383 * - Used: @c bkpinfo->backup_media_type
384 * - Used: @c bkpinfo->cdrw_speed
385 * - Used: @c bkpinfo->compression_level
386 * - Used: @c bkpinfo->include_paths
387 * - Used: @c bkpinfo->prefix
388 * - Used: @c bkpinfo->isodir
389 * - Used: @c bkpinfo->manual_cd_tray
390 * - Used: @c bkpinfo->make_cd_use_lilo
391 * - Used: @c bkpinfo->media_device
392 * - Used: @c bkpinfo->nfs_mount
393 * - Used: @c bkpinfo->nonbootable_backup
394 * - Used: @c bkpinfo->scratchdir
395 * - Used: @c bkpinfo->tmpdir
396 * - Used: @c bkpinfo->use_lzo
397 * - Modified: @c bkpinfo->call_before_iso
398 * - Modified: @c bkpinfo->call_make_iso
399 * - Modified: @c bkpinfo->optimal_set_size
400 * - Modified: @c bkpinfo->zip_exe
401 * - Modified: @c bkpinfo->zip_suffix
402 *
403 * @return number of errors, or 0 for success.
404 * @note Also creates directories that are specified in the @c bkpinfo structure but
405 * do not exist.
406 */
407int post_param_configuration()
408{
409    char *extra_cdrom_params = NULL;
410    char *mondo_mkisofs_sz = NULL;
411    char *command = NULL;
412    char *mtpt;
413    char *hostname;
414    char *ip_address = NULL;
415    int retval = 0;
416    char *colon;
417    char *cdr_exe;
418    char *tmp = NULL;
419    char *p = NULL;
420    char call_before_iso_user[MAX_STR_LEN] = "\0";
421    /*
422    long avm = 0;
423    int rdsiz_MB;
424    */
425    char *iso_dev = NULL;
426    char *iso_mnt = NULL;
427    char *iso_tmp = NULL;
428    char *iso_path = NULL;
429
430    assert(bkpinfo != NULL);
431
432    if (!bkpinfo->tmpdir) {
433        fatal_error("Tmpdir set to NULL !");
434    }
435
436    malloc_string(mtpt);
437    malloc_string(hostname);
438    malloc_string(cdr_exe);
439    bkpinfo->optimal_set_size =
440        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
441        1024;
442
443    if (strlen(bkpinfo->tmpdir) < 2) {
444        log_it("tmpdir is blank/missing");
445        retval++;
446    }
447
448    log_msg(1, "Foo");
449    if (bkpinfo->backup_media_type == tape) {
450        log_msg(1, "Bar");
451        mr_asprintf(&tmp, "mt -f %s status", bkpinfo->media_device);
452        log_msg(1, "tmp = '%s'", tmp);
453        if (run_program_and_log_output(tmp, 3)) {
454            mr_free(tmp);
455            fatal_error
456                ("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.");
457        }
458        mr_free(tmp);
459    }
460    if (bkpinfo->scratchdir) {
461        make_hole_for_dir(bkpinfo->scratchdir);
462        chmod(bkpinfo->scratchdir, 0700);
463    } else {
464        fatal_error("Scratchdir set to NULL !");
465    }
466    if (bkpinfo->backup_media_type == iso)
467        make_hole_for_dir(bkpinfo->isodir);
468
469    run_program_and_log_output("uname -a", 5);
470    run_program_and_log_output("cat /etc/*-release", 5);
471    run_program_and_log_output("cat /etc/*issue*", 5);
472#ifdef __FreeBSD__
473#else
474    run_program_and_log_output("cat /proc/cpuinfo", 5);
475    run_program_and_log_output
476        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
477         5);
478#endif
479
480    if (bkpinfo->use_lzo) {
481        strcpy(bkpinfo->zip_exe, "lzop");
482        strcpy(bkpinfo->zip_suffix, "lzo");
483    } else if (bkpinfo->use_gzip) {
484        strcpy(bkpinfo->zip_exe, "gzip");
485        strcpy(bkpinfo->zip_suffix, "gz");
486    } else if (bkpinfo->compression_level != 0) {
487        strcpy(bkpinfo->zip_exe, "bzip2");
488        strcpy(bkpinfo->zip_suffix, "bz2");
489    } else {
490        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
491    }
492
493// DVD
494
495    if (bkpinfo->backup_media_type == dvd) {
496        if (find_home_of_exe("growisofs")) {
497            strcpy(cdr_exe, "growisofs");
498        }                       // unlikely to be used
499        else {
500            fatal_error("Please install growisofs.");
501        }
502        if (bkpinfo->nonbootable_backup) {
503            mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
504        } else if
505#ifdef __FreeBSD__
506            (TRUE)
507#else
508            (bkpinfo->make_cd_use_lilo)
509#endif
510#ifdef __IA64__
511    {
512        mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
513    }
514#else
515    {
516        mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
517    }
518#endif
519        else
520        {
521            mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
522        }
523        if (bkpinfo->manual_cd_tray) {
524            paranoid_free(mondo_mkisofs_sz);
525            fatal_error("Manual CD tray + DVD not supported yet.");
526            // -m isn't supported by growisofs, BTW...
527        } else {
528            sprintf(bkpinfo->call_make_iso,
529                    "%s %s -Z %s . 2>> _ERR_",
530                    mondo_mkisofs_sz,
531                    "", bkpinfo->media_device);
532            paranoid_free(mondo_mkisofs_sz);
533        }
534        if (getenv ("SUDO_COMMAND")) {
535            mr_asprintf(&command, "strings `which growisofs` | grep -c SUDO_COMMAND");
536            if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
537                mr_free(command);
538                popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
539                fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
540            }       
541            mr_free(command);
542        }
543        log_msg(2, "call_make_iso (DVD res) is ... %s",
544                bkpinfo->call_make_iso);
545    }                           // end of DVD code
546
547// CD-R or CD-RW
548    if (bkpinfo->backup_media_type == cdrw
549        || bkpinfo->backup_media_type == cdr) {
550        if (!bkpinfo->manual_cd_tray) {
551            mr_asprintf(&extra_cdrom_params, "-waiti ");
552        }
553        if (bkpinfo->backup_media_type == cdrw) {
554            mr_asprintf(&extra_cdrom_params, "blank=fast ");
555        }
556        if (find_home_of_exe("cdrecord")) {
557            strcpy(cdr_exe, "cdrecord");
558        } else if (find_home_of_exe("dvdrecord")) {
559            strcpy(cdr_exe, "dvdrecord");
560        } else {
561            fatal_error("Please install either cdrecord or dvdrecord.");
562        }
563        if (bkpinfo->nonbootable_backup) {
564            mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
565        } else if
566#ifdef __FreeBSD__
567            (TRUE)
568#else
569            (bkpinfo->make_cd_use_lilo)
570#endif
571#ifdef __IA64__
572    {
573        mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
574    }
575#else
576    {
577        mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
578    }
579#endif
580        else
581        {
582            mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
583        }
584        if (bkpinfo->manual_cd_tray) {
585            if (bkpinfo->call_before_iso[0] == '\0') {
586            sprintf(bkpinfo->call_before_iso,
587                        "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_",
588                        mondo_mkisofs_sz, bkpinfo->tmpdir);
589                } else {
590                strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
591                sprintf (bkpinfo->call_before_iso,
592                                    "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )",
593                        mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
594            }
595            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
596            sprintf(bkpinfo->call_make_iso,
597                    "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS,
598                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
599                    extra_cdrom_params, bkpinfo->media_device,
600                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
601        } else {
602            sprintf(bkpinfo->call_make_iso,
603                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
604                    mondo_mkisofs_sz, cdr_exe,
605                    (bkpinfo->please_dont_eject) ? " " : "-eject",
606                    extra_cdrom_params, bkpinfo->media_device,
607                    bkpinfo->cdrw_speed);
608        }
609        paranoid_free(mondo_mkisofs_sz);
610        paranoid_free(extra_cdrom_params);
611    }                           // end of CD code
612
613    if (bkpinfo->backup_media_type == iso) {
614
615/* Patch by Conor Daly <conor.daly@met.ie>
616 * 23-june-2004
617 * Break up isodir into iso_mnt and iso_path
618 * These will be used along with iso-dev at restore time
619 * to locate the ISOs where ever they're mounted
620 */
621
622        log_it("isodir = %s", bkpinfo->isodir);
623        mr_asprintf(&command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
624        log_it("command = %s", command);
625        log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
626        mr_asprintf(&iso_dev, "%s", call_program_and_get_last_line_of_output(command));
627        mr_asprintf(&tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
628        write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
629        mr_free(tmp);
630        mr_free(command);
631
632        mr_asprintf(&command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
633        mr_free(iso_dev);
634
635        log_it("command = %s", command);
636        log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
637        mr_asprintf(&iso_mnt, "%s", call_program_and_get_last_line_of_output(command));
638        mr_asprintf(&tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
639        write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
640        mr_free(tmp);
641        mr_free(command);
642
643        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
644        mr_asprintf(&iso_tmp, "%s", bkpinfo->isodir);
645        if (strlen(iso_tmp) < strlen(iso_mnt)) {
646            mr_asprintf(&iso_path, "%s", "");
647        } else {
648            mr_asprintf(&iso_path, "%s", iso_tmp + strlen(iso_mnt));
649        }
650        mr_free(iso_tmp);
651
652        mr_asprintf(&tmp, "%s/ISODIR", bkpinfo->tmpdir);
653        write_one_liner_data_file(tmp, iso_path);
654        mr_free(tmp);
655
656        log_it("isodir: %s", iso_path);
657        mr_free(iso_path);
658
659        mr_asprintf(&tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
660        write_one_liner_data_file(tmp, bkpinfo->prefix);
661        mr_free(tmp);
662
663        log_it("iso-prefix: %s",  bkpinfo->prefix);
664
665/* End patch */
666    }                           // end of iso code
667
668    if (bkpinfo->backup_media_type == nfs) {
669        strcpy(hostname, bkpinfo->nfs_mount);
670        colon = strchr(hostname, ':');
671        if (!colon) {
672            log_it("nfs mount doesn't have a colon in it");
673            retval++;
674        } else {
675            struct hostent *hent;
676
677            *colon = '\0';
678            hent = gethostbyname(hostname);
679            if (!hent) {
680                log_it("Can't resolve NFS mount (%s): %s", hostname,
681                       hstrerror(h_errno));
682                retval++;
683            } else {
684                mr_asprintf(&ip_address, "%s", inet_ntoa((struct in_addr) *((struct in_addr *) hent->h_addr)));
685                mr_strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
686                strcpy(bkpinfo->nfs_mount, ip_address);
687                paranoid_free(ip_address);
688            }
689        }
690        store_nfs_config();
691    }
692
693    log_it("Finished processing incoming params");
694    if (retval) {
695        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
696    }
697    if (bkpinfo->include_paths == NULL) {
698        mr_asprintf(&p, "/");
699        bkpinfo->include_paths = p;
700    }
701    g_backup_media_type = bkpinfo->backup_media_type;
702    paranoid_free(mtpt);
703    paranoid_free(hostname);
704    paranoid_free(cdr_exe);
705    return (retval);
706}
707
708
709
710/**
711 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
712 * Seeds the random-number generator, loads important modules, checks the sanity
713 * of the user's Linux distribution, and deletes logfile.
714 * @param bkpinfo The backup information structure. Will be initialized.
715 * @return number of errors (0 for success)
716 */
717int pre_param_configuration()
718{
719    int res = 0;
720    char *tmp = NULL;
721
722    make_hole_for_dir(MNT_CDROM);
723    assert(bkpinfo != NULL);
724    srandom((unsigned long) (time(NULL)));
725    insmod_crucial_modules();
726    if (bkpinfo->disaster_recovery) {
727        if (!does_nonMS_partition_exist()) {
728            fatal_error
729                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
730        }
731    }
732
733    unlink(MONDO_TRACEFILE);
734    mr_asprintf(&tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
735    run_program_and_log_output(tmp, FALSE);
736    paranoid_free(tmp);
737    if (find_and_store_mondoarchives_home(g_mondo_home)) {
738        fprintf(stderr,
739                "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");
740        res++;
741        return (res);
742    }
743    res += some_basic_system_sanity_checks();
744    if (res) {
745        log_it("Your distribution did not pass Mondo's sanity test.");
746    }
747    g_current_media_number = 1;
748    bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
749    return (res);
750}
751
752void setup_tmpdir(char *path) {
753
754    char *tmp = NULL;
755    char *p = NULL;
756
757    if ((bkpinfo->tmpdir != NULL) && (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL)) {
758        /* purging a potential old tmpdir */
759        log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
760        mr_asprintf(&tmp,"rm -Rf %s",bkpinfo->tmpdir);
761        mr_free(bkpinfo->tmpdir);
762        (void)system(tmp);
763        mr_free(tmp);
764    }
765
766    if (path != NULL) {
767        mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", path);
768    } else if (getenv("TMPDIR")) {
769        mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
770    } else if (getenv("TMP")) {
771        mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
772    } else {
773        mr_asprintf(&tmp, "/tmp/mondo.tmp.XXXXXX");
774    }
775    p = mkdtemp(tmp);
776    if (p == NULL) {
777        log_it("Failed to create global tmp directory %s for Mondo.",tmp);
778        mr_free(tmp);
779        finish(-1);
780    }
781
782    bkpinfo->tmpdir = p;
783    log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
784}
785
786/* Free all memory allocated into bkpinfo */
787void mr_free_bkpinfo() {
788
789    mr_free(bkpinfo->scratchdir);
790    mr_free(bkpinfo->tmpdir);
791    mr_free(bkpinfo->include_paths);
792    mr_free(bkpinfo->exclude_paths);
793    mr_free(bkpinfo->nfs_user);
794
795    /* Then free the structure */
796    mr_free(bkpinfo);
797}
798
799/**
800 * Reset all fields of the backup information structure to a sensible default.
801 * @param bkpinfo The @c bkpinfo to reset.
802 */
803void init_bkpinfo()
804{
805    int i;
806
807    log_msg(1, "Hi");
808
809    /* Initialized in same order as in the structure declaration to detect errors more easily */
810    bkpinfo->media_device[0] = '\0';
811    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
812        bkpinfo->media_size[i] = -1;
813    }
814    bkpinfo->boot_loader = '\0';
815    bkpinfo->boot_device[0] = '\0';
816    bkpinfo->zip_exe[0] = '\0';
817    bkpinfo->zip_suffix[0] = '\0';
818    bkpinfo->image_devs[0] = '\0';
819    bkpinfo->compression_level = 3;
820    bkpinfo->use_lzo = FALSE;
821    bkpinfo->use_gzip = FALSE;
822    bkpinfo->do_not_compress_these[0] = '\0';
823    bkpinfo->verify_data = FALSE;
824    bkpinfo->backup_data = FALSE;
825    bkpinfo->restore_data = FALSE;
826    bkpinfo->use_star = FALSE;
827    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
828    bkpinfo->disaster_recovery = (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
829    if (bkpinfo->disaster_recovery) {
830        strcpy(bkpinfo->isodir, "/");
831    } else {
832        strcpy(bkpinfo->isodir, MONDO_CACHE);
833    }
834    strcpy(bkpinfo->prefix, STD_PREFIX);
835    bkpinfo->scratchdir = NULL;
836    bkpinfo->tmpdir = NULL;
837    bkpinfo->optimal_set_size = 0;
838    bkpinfo->backup_media_type = none;
839    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
840    bkpinfo->include_paths = NULL;
841    bkpinfo->exclude_paths = NULL;
842    bkpinfo->restore_path[0] = '\0';
843    bkpinfo->call_before_iso[0] = '\0';
844    bkpinfo->call_make_iso[0] = '\0';
845    bkpinfo->call_burn_iso[0] = '\0';
846    bkpinfo->call_after_iso[0] = '\0';
847    bkpinfo->kernel_path[0] = '\0';
848    bkpinfo->nfs_mount[0] = '\0';
849    bkpinfo->nfs_remote_dir[0] = '\0';
850    bkpinfo->nfs_user = NULL;
851    bkpinfo->postnuke_tarball[0] = '\0';
852    bkpinfo->wipe_media_first = FALSE;
853    bkpinfo->differential = 0;
854    bkpinfo->please_dont_eject = FALSE;
855    bkpinfo->cdrw_speed = 0;
856    bkpinfo->manual_cd_tray = FALSE;
857    bkpinfo->nonbootable_backup = FALSE;
858    bkpinfo->make_cd_use_lilo = FALSE;
859    bkpinfo->use_obdr = FALSE;
860    bkpinfo->restore_mode = interactive;
861
862    setup_tmpdir(NULL);
863    sensibly_set_scratchdir();
864}
865
866
867
868
869/**
870 * Get the remaining free space (in MB) on @p partition.
871 * @param partition The partition to check free space on (either a device or a mountpoint).
872 * @return The free space on @p partition, in MB.
873 */
874long free_space_on_given_partition(char *partition)
875{
876    char *out_sz = NULL;
877    char *command = NULL;
878    long res;
879
880    assert_string_is_neither_NULL_nor_zerolength(partition);
881
882    mr_asprintf(&command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
883    if (system(command)) {
884        mr_free(command);
885        return (-1);
886    }                           // partition does not exist
887    mr_free(command);
888
889    mr_asprintf(&command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
890            partition);
891    mr_asprintf(&out_sz, "%s", call_program_and_get_last_line_of_output(command));
892    mr_free(command);
893
894    if (strlen(out_sz) == 0) {
895        mr_free(out_sz);
896        return (-1);
897    }                           // error within df, probably
898    res = atol(out_sz);
899    mr_free(out_sz);
900    return (res);
901}
902
903
904
905/**
906 * Check the user's system for sanity. Checks performed:
907 * - make sure user has enough RAM (32mb required, 64mb recommended)
908 * - make sure user has enough free space in @c /
909 * - check kernel for ramdisk support
910 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
911 * - make sure CD-ROM is unmounted
912 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
913 *
914 * @return number of problems with the user's setup (0 for success)
915 */
916int some_basic_system_sanity_checks()
917{
918
919    /*@ buffers ************ */
920    char *tmp = NULL;
921
922    /*@ int's *************** */
923    int retval = 0;
924
925    mvaddstr_and_log_it(g_currentY, 0,
926                        "Checking sanity of your Linux distribution");
927#ifndef __FreeBSD__
928    if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
929        && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
930        log_it
931            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
932        run_program_and_log_output
933            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
934    }
935    mr_asprintf(&tmp, "%s", call_program_and_get_last_line_of_output("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
936    if (atol(tmp) < 35000) {
937        retval++;
938        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
939    }
940    if (atol(tmp) < 66000) {
941        log_to_screen
942            ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
943    }
944    mr_free(tmp);
945#endif
946
947    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
948        retval++;
949        log_to_screen
950            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
951        fatal_error
952            ("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. :)");
953    }
954#ifndef __FreeBSD__
955    if (run_program_and_log_output
956        ("grep ramdisk /proc/devices", FALSE)) {
957        /* Some SuSE have ramdisk as modules, so insert it first, then test again */
958        run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
959        if (run_program_and_log_output
960            ("grep ramdisk /proc/devices", FALSE)) {
961            if (!ask_me_yes_or_no
962                ("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?"))
963            {
964                //          retval++;
965                log_to_screen
966                    ("It looks as if your kernel lacks ramdisk and initrd support.");
967                log_to_screen
968                    ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
969            }
970        }
971    }
972#endif
973    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
974    retval += whine_if_not_found("mkisofs");
975    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
976        retval += whine_if_not_found("cdrecord");
977    }
978    retval += whine_if_not_found("bzip2");
979    retval += whine_if_not_found("gzip");
980    retval += whine_if_not_found("awk");
981    retval += whine_if_not_found("md5sum");
982    retval += whine_if_not_found("strings");
983    retval += whine_if_not_found("mindi");
984    retval += whine_if_not_found("buffer");
985
986    // abort if Windows partition but no ms-sys and parted
987    if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
988        log_to_screen("I think you have a Windows 9x partition.");
989        retval += whine_if_not_found("parted");
990    }
991
992    if (!find_home_of_exe("cmp")) {
993        if (!find_home_of_exe("true")) {
994            whine_if_not_found("cmp");
995        } else {
996            log_to_screen
997                ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
998            if (run_program_and_log_output
999                ("cp -f `which true` /usr/bin/cmp", 0)) {
1000                fatal_error("Failed to create dummy 'cmp' file.");
1001            }
1002        }
1003    }
1004    run_program_and_log_output
1005        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1006    mr_asprintf(&tmp, "%s", call_program_and_get_last_line_of_output("mount | grep -E \"cdr(om|w)\""));
1007    if (strcmp("", tmp)) {
1008        if (strstr(tmp, "autofs")) {
1009            log_to_screen
1010                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1011            log_to_screen
1012                ("if a CD actually is inserted. If a CD is inserted, please");
1013            log_to_screen("eject it. Thank you.");
1014            log_it
1015                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1016        } else
1017            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1018            retval++;
1019            mr_free(tmp);
1020            fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
1021        }
1022    }
1023    mr_free(tmp);
1024
1025    run_program_and_log_output("cat /etc/fstab", 5);
1026#ifdef __FreeBSD__
1027    run_program_and_log_output("vinum printconfig", 5);
1028#else
1029    run_program_and_log_output("cat /etc/raidtab", 5);
1030#endif
1031
1032    if (run_program_and_log_output("mindi -V", 1)) {
1033        log_to_screen("Could not ascertain mindi's version number.");
1034        log_to_screen
1035            ("You have not installed Mondo and/or Mindi properly.");
1036        log_to_screen("Please uninstall and reinstall them both.");
1037        fatal_error("Please reinstall Mondo and Mindi.");
1038    }
1039    mr_asprintf(&tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1040    if (run_program_and_log_output(tmp, 5)) {
1041        mr_free(tmp);
1042        mr_asprintf(&tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1043        log_to_screen(tmp);
1044        log_to_screen
1045            ("Please run that command by hand and examine /var/log/mindi.log");
1046        log_to_screen
1047            ("for more information. Perhaps your /etc/fstab file is insane.");
1048        log_to_screen
1049            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1050        retval++;
1051    }
1052    mr_free(tmp);
1053
1054    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1055        && !does_file_exist("/etc/raidtab")) {
1056        log_to_screen
1057            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1058        create_raidtab_from_mdstat("/etc/raidtab");
1059    }
1060
1061    if (retval) {
1062        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1063    } else {
1064        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1065    }
1066    return (retval);
1067}
1068
1069/**
1070 * Retrieve the line containing @p label from the config file.
1071 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1072 * @param label What to read from the file.
1073 * @param value Where to put it.
1074 * @return 0 for success, 1 for failure.
1075 */
1076int read_cfg_var(char *config_file, char *label, char *value)
1077{
1078    /*@ buffer ****************************************************** */
1079    char *command = NULL;
1080    char *tmp = NULL;
1081
1082    /*@ end vars *************************************************** */
1083
1084    assert_string_is_neither_NULL_nor_zerolength(config_file);
1085    assert_string_is_neither_NULL_nor_zerolength(label);
1086    if (!does_file_exist(config_file)) {
1087        mr_asprintf(&tmp, "(read_cfg_var) Cannot find %s config file", config_file);
1088        log_to_screen(tmp);
1089        mr_free(tmp);
1090
1091        value[0] = '\0';
1092        return (1);
1093    } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1094        log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1095        return (0);
1096    } else {
1097        mr_asprintf(&command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1098        strcpy(value, call_program_and_get_last_line_of_output(command));
1099        mr_free(command);
1100
1101        if (strlen(value) == 0) {
1102            return (1);
1103        } else {
1104            return (0);
1105        }
1106    }
1107}
1108
1109
1110
1111/**
1112 * Remount @c supermount if it was unmounted earlier.
1113 */
1114void remount_supermounts_if_necessary()
1115{
1116    if (g_remount_cdrom_at_end) {
1117        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1118    }
1119    if (g_remount_floppy_at_end) {
1120        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1121    }
1122}
1123
1124/**
1125 * Unmount @c supermount if it's mounted.
1126 */
1127void unmount_supermounts_if_necessary()
1128{
1129    if (run_program_and_log_output
1130        ("mount | grep cdrom | grep super", FALSE) == 0) {
1131        g_remount_cdrom_at_end = TRUE;
1132        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1133    }
1134    if (run_program_and_log_output
1135        ("mount | grep floppy | grep super", FALSE) == 0) {
1136        g_remount_floppy_at_end = TRUE;
1137        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1138    }
1139}
1140
1141/**
1142 * Whether we had to stop autofs (if so, restart it at end).
1143 */
1144bool g_autofs_stopped = FALSE;
1145
1146/**
1147 * Path to the autofs initscript ("" if none exists).
1148 */
1149char g_autofs_exe[MAX_STR_LEN];
1150
1151/**
1152 * Autofs initscript in Xandros Linux distribution.
1153 */
1154#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1155
1156/**
1157 * Autofs initscript in most Linux distributions.
1158 */
1159#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1160
1161/**
1162 * If autofs is mounted, stop it (restart at end).
1163 */
1164void stop_autofs_if_necessary()
1165{
1166    char *tmp = NULL;
1167
1168    g_autofs_exe[0] = '\0';
1169    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1170        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1171    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1172        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1173    }
1174
1175    if (!g_autofs_exe[0]) {
1176        log_msg(3, "No autofs detected.");
1177    } else {
1178        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1179        // FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1180        mr_asprintf(&tmp, "%s stop", g_autofs_exe);
1181        if (run_program_and_log_output(tmp, 2)) {
1182            log_it("Failed to stop autofs - I assume it wasn't running");
1183        } else {
1184            g_autofs_stopped = TRUE;
1185            log_it("Stopped autofs OK");
1186        }
1187        mr_free(tmp);
1188    }
1189}
1190
1191/**
1192 * If autofs was stopped earlier, restart it.
1193 */
1194void restart_autofs_if_necessary()
1195{
1196    char *tmp = NULL;
1197
1198    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1199        log_msg(3, "No autofs detected.");
1200        return;
1201    }
1202    mr_asprintf(&tmp, "%s start", g_autofs_exe);
1203    if (run_program_and_log_output(tmp, 2)) {
1204        log_it("Failed to start autofs");
1205    } else {
1206        g_autofs_stopped = FALSE;
1207        log_it("Started autofs OK");
1208    }
1209    mr_free(tmp);
1210}
1211
1212
1213/**
1214 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1215 */
1216void mount_boot_if_necessary()
1217{
1218    char *tmp = NULL;
1219    char *command = NULL;
1220
1221    log_msg(1, "Started sub");
1222    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1223    g_boot_mountpt[0] = '\0';
1224    log_msg(4, "Done. Great. Seeting command to something");
1225    mr_asprintf(&command, "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[    ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1226    log_msg(4, "Cool. Command = '%s'", command);
1227    mr_asprintf(&tmp, "%s", call_program_and_get_last_line_of_output(command));
1228    mr_free(command);
1229
1230    log_msg(4, "tmp = '%s'", tmp);
1231    if (tmp[0]) {
1232        log_it("/boot is at %s according to /etc/fstab", tmp);
1233        mr_asprintf(&command, "mount | grep -Ew '/boot'");
1234        mr_free(tmp);
1235        mr_asprintf(&tmp, "%s", call_program_and_get_last_line_of_output(command));
1236        mr_free(command);
1237
1238        if (!strcmp(tmp,"")) {
1239            if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1240                if (!run_program_and_log_output("mount /boot", 5)) {
1241                    strcpy(g_boot_mountpt, "/boot");
1242                    log_msg(1, "Mounted /boot");
1243                } else {
1244                    log_it("...ignored cos it's a label or uuid :-)");
1245                }
1246            } else {
1247                mr_asprintf(&command, "mount | grep -E '^%s'", tmp);
1248                log_msg(3, "command = %s", command);
1249                if (run_program_and_log_output(command, 5)) {
1250                    strcpy(g_boot_mountpt, tmp);
1251                    mr_free(tmp);
1252                    mr_asprintf(&tmp, "%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1253                    log_it(tmp);
1254                    mr_free(tmp);
1255
1256                    mr_asprintf(&tmp, "mount %s", g_boot_mountpt);
1257                    if (run_program_and_log_output(tmp, 5)) {
1258                        g_boot_mountpt[0] = '\0';
1259                        log_msg(1, "Plan B");
1260                        if (!run_program_and_log_output("mount /boot", 5)) {
1261                            strcpy(g_boot_mountpt, "/boot");
1262                            log_msg(1, "Plan B worked");
1263                        } else {
1264                            log_msg(1,
1265                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1266                        }
1267                    }
1268                    mr_free(tmp);
1269                }
1270                mr_free(command);
1271            }
1272        }
1273    }
1274    log_msg(1, "Ended sub");
1275}
1276
1277
1278/**
1279 * If we mounted /boot earlier, unmount it.
1280 */
1281void unmount_boot_if_necessary()
1282{
1283    char *tmp = NULL;
1284
1285    log_msg(3, "starting");
1286    if (g_boot_mountpt[0]) {
1287        mr_asprintf(&tmp, "umount %s", g_boot_mountpt);
1288        if (run_program_and_log_output(tmp, 5)) {
1289            log_it("WARNING - unable to unmount /boot");
1290        }
1291        mr_free(tmp);
1292    }
1293    log_msg(3, "leaving");
1294}
1295
1296
1297
1298/**
1299 * Write a line to a configuration file. Writes a line of the form,
1300 * @c label @c value.
1301 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1302 * @param label What to call this bit of data you're writing.
1303 * @param value The bit of data you're writing.
1304 * @return 0 for success, 1 for failure.
1305 */
1306int write_cfg_var(char *config_file, char *label, char *value)
1307{
1308    /*@ buffers ***************************************************** */
1309    char *command = NULL;
1310    char *tempfile = NULL;
1311    char *tmp = NULL;
1312
1313
1314    /*@ end vars *************************************************** */
1315    assert_string_is_neither_NULL_nor_zerolength(config_file);
1316    assert_string_is_neither_NULL_nor_zerolength(label);
1317    assert(value != NULL);
1318    if (!does_file_exist(config_file)) {
1319        mr_asprintf(&tmp, "(write_cfg_file) Cannot find %s config file", config_file);
1320        log_to_screen(tmp);
1321        mr_free(tmp);
1322        return (1);
1323    }
1324    mr_asprintf(&tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1325    if (does_file_exist(config_file)) {
1326        mr_asprintf(&command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1327        paranoid_system(command);
1328        mr_free(command);
1329    }
1330    mr_asprintf(&command, "echo \"%s %s\" >> %s", label, value, tempfile);
1331    paranoid_system(command);
1332    mr_free(command);
1333
1334    mr_asprintf(&command, "mv -f %s %s", tempfile, config_file);
1335    paranoid_system(command);
1336    mr_free(command);
1337    unlink(tempfile);
1338    mr_free(tempfile);
1339    return (0);
1340}
1341
1342
1343/**
1344 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1345 * information to the logfile.
1346 */
1347void standard_log_debug_msg(int debug_level, const char *szFile,
1348                            const char *szFunction, int nLine,
1349                            const char *fmt, ...)
1350{
1351    va_list args;
1352    int i;
1353    static int depth = 0;
1354    FILE *fout;
1355
1356    if (depth > 5) {
1357        depth--;
1358        return;
1359    }
1360    depth++;
1361
1362    if (debug_level <= g_loglevel) {
1363        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1364            return;
1365        }
1366
1367        // add tabs to distinguish log levels
1368        if (debug_level > 0) {
1369            for (i = 1; i < debug_level; i++)
1370                fprintf(fout, "\t");
1371            if (getpid() == g_main_pid)
1372                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1373            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1374                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1375            else
1376                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1377        }
1378        va_start(args, fmt);
1379        vfprintf(fout, fmt, args);
1380        va_end(args);
1381
1382        // do not slow down the progran if standard debug level
1383        // must be enabled: if no flush, the log won't be up-to-date if there
1384        // is a segfault
1385        //if (g_dwDebugLevel != 1)
1386
1387        fprintf(fout, "\n");
1388        paranoid_fclose(fout);
1389    }
1390    depth--;
1391}
1392
1393/**
1394 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1395 */
1396void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1397                       ...) = standard_log_debug_msg;
1398
1399
1400/**
1401 * Allocate or free important globals, depending on @p mal.
1402 * @param mal If TRUE, malloc; if FALSE, free.
1403 */
1404void do_libmondo_global_strings_thing(int mal)
1405{
1406    if (mal) {
1407        malloc_string(g_boot_mountpt);
1408        malloc_string(g_mondo_home);
1409        malloc_string(g_magicdev_command);
1410    } else {
1411        paranoid_free(g_boot_mountpt);
1412        paranoid_free(g_mondo_home);
1413        paranoid_free(g_magicdev_command);
1414
1415        mr_free(g_serial_string);
1416    }
1417}
1418
1419/**
1420 * Allocate important globals.
1421 * @see do_libmondo_global_strings_thing
1422 */
1423void malloc_libmondo_global_strings(void)
1424{
1425    do_libmondo_global_strings_thing(1);
1426}
1427
1428/**
1429 * Free important globals.
1430 * @see do_libmondo_global_strings_thing
1431 */
1432void free_libmondo_global_strings(void)
1433{
1434    do_libmondo_global_strings_thing(0);
1435}
1436
1437
1438
1439/**
1440 * Stop @c magicdev if it's running.
1441 * The command used to start it is saved in @p g_magicdev_command.
1442 */
1443void stop_magicdev_if_necessary()
1444{
1445    strcpy(g_magicdev_command,
1446           call_program_and_get_last_line_of_output
1447           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1448    if (g_magicdev_command[0]) {
1449        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1450        paranoid_system("killall magicdev");
1451    }
1452}
1453
1454
1455/**
1456 * Restart magicdev if it was stopped.
1457 */
1458void restart_magicdev_if_necessary()
1459{
1460    char *tmp = NULL;
1461
1462    if (g_magicdev_command && g_magicdev_command[0]) {
1463        mr_asprintf(&tmp, "%s &", g_magicdev_command);
1464        paranoid_system(tmp);
1465        mr_free(tmp);
1466    }
1467}
1468
1469/* @} - end of utilityGroup */
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