source: MondoRescue/branches/2.2.5/mondo/src/common/libmondo-tools.c @ 1652

Last change on this file since 1652 was 1652, checked in by Bruno Cornec, 12 years ago

Always wrokign on fixing tmpdir problems

  • Property svn:keywords set to Id
File size: 45.0 KB
Line 
1/* libmondo-tools.c                                  misc tools
2   $Id: libmondo-tools.c 1652 2007-09-24 11:07:01Z bruno $
3.
4
5
606/28
7- abort if RAID partitions found but /etc/raidtab not found
8
906/25
10- don't insist on ms-sys; recommend it
11- don't fatal_error if can't open log file
12
1306/14
14- call mindi -V before calling mindi --makemountlist
15
1604/09
17- lots of malloc'd char*'s instead of char[]'s in post_param_config'n
18
1904/02
20- better sanity-checking, re: /etc/modules.conf
21
2202/15
23- abort if Windows dir but no ms-sys or parted
24
2502/08
26- missing ramdisk/initrd support is nonfatal now (but stupid)
27
2801/16
29- added g_kernel_version and get_kernel_version()
30
3101/08/2004
32- fixed /boot mounter thingy
33
3411/14/2003
35- if <50MB free in /root, softlink /root/images/mindi to
36  /home/root/images/mindi as a workaround
37
3810/23
39- streaming backups now generate 4MB sets; CDs, 8MB sets
40
4110/21
42- better at finding your /boot in order to mount it, if nec.
43- link /etc/modules.conf to /etc/conf.modules if former
44  is missing but latter is not
45- changed "/mnt/cdrom" to MNT_CDROM
46- changed "/mnt/floppy" to MNT_FLOPPY
47
4810/13
49- added stop_magicdev_if_necessary()
50- added restart_magicdev_if_necessary()
51
5210/02
53- don't eject if bkpinfo->please_dont_eject is TRUE
54
5509/28
56- fixed segfault in mount_..._necessary
57
5809/26
59- ask for cmp (or create workaround if possible)
60
6109/25
62- add DVD support
63
6409/24
65- don't overwrite existing media-dev value in bkpinfo IF it's
66  a tape device AND it's already populated by /dev/{something}
67  ...This helps w/ weird tape drives
68
6909/23
70- malloc/free global strings in new subroutines - malloc_libmondo_global_strings()
71  and free_libmondo_global_strings() - which are in libmondo-tools.c
72
7309/18
74- added stop_autofs_if_necessary() and restart_autofs_if_necessary()
75
7609/13
77- added log_debug_msg()
78- turned log_it() into a macro
79
8009/10
81- reduced PPCFG_RAMDISK to 150m (was 200m)
82- max set size is now 8MB (was 6)
83- added 'buffer' to requisite tools
84
8508/29
86- typical set size is now 5MB
87   
8807/22
89- increased PPCFG* to 200m
90
9105/07
92- changed grep -m1 to grep | head -n1 for Debian users
93- pre_param_...() also mkdir -p /mnt/cdrom, just in case
94
9505/05
96- cleaner logging of call to dd if=<tape> of=/dev/null
97- added Joshua Oreman's FreeBSD patches
98
9905/04
100- added Herman Kuster's multi-level bkp patch
101
10205/02
103- log_it() --- "Message repeated N times" (if it was)
104
10504/24
106- added lots of assert()'s and log_OS_error()'s
107- reset_bkpinfop() --- reset all media_size[] array
108- increased tmpfs ramdisk to size=100m
109
11004/22
111- post_param_configuration() --- store iso-dev and isodir
112
11304/05
114- re-enable tmpfs ramdisk/mountpt _but_ make sure size=80m
115- in post_param_configuration(), use cdrecord in preference
116  to dvdrecord now
117
11803/27
119- disabled tmpfs ramdisk/mountpt
120
12101/02/2003
122- bkpinfo->makefilelist = TRUE
123
12412/10/2002
125- added g_loglevel
126- fixed minor bug in clean_up_KDE_desktop_if_necessary()
127- log versions of newt, slang, ncurses
128- isodir defaults to / if disaster recovery
129
13011/28
131- unmount all CD devices at start
132- added clean_up_KDE_desktop_if_necessary()
133
13411/20
135- don't use lilo.conf.anaconda; abort instead
136- mount/unmount /boot partition for Gentoo 1.2 users
137
13811/13
139- call mindi --makemountlist as part of testing sanity of distro
140
14111/08
142- added a couple of chmod 700's (one for scratchdir, one for tmpdir)
143  to post_param_configuration()
144
14510/01 - 10/31
146- added checking of / and /root's free space to some_basic_sanity_checks()
147- moved some subroutines here from common/libmondo-archive
148
14909/01 - 09/30
150- don't write log_it()'s string to stdout, even if text mode
151- tell user the kernel is bad if it has no ramdisk support but allow
152  it if they want to use the failsafe kernel for booting
153- run_program_and_log_output() now takes boolean operator to specify
154  whether it will log its activities in the event of _success_
155- if mkfs.vfat not found but mkfs.msdos found then create a softlink
156  from the former to the latter
157
15808/01 - 08/31
159- if /etc/lilo.conf not found not /etc/lilo.conf.anaconda found
160  then create a softlink from the former to the latter, to work
161  around RH7.3's b0rken LILO support
162- handle unknown media size
163
16407/27
165- created
166*/
167
168
169/**
170 * @file
171 * Miscellaneous tools that didn't really fit anywhere else.
172 */
173
174#include "my-stuff.h"
175#include "mondostructures.h"
176#include "lib-common-externs.h"
177#include "libmondo-tools.h"
178#include "libmondo-gui-EXT.h"
179#include "libmondo-files-EXT.h"
180#include "libmondo-fork-EXT.h"
181#include "libmondo-raid-EXT.h"
182#include <sys/socket.h>
183#include <netdb.h>
184#include <netinet/in.h>
185#include <arpa/inet.h>
186#include <sys/utsname.h>
187
188/*@unused@*/
189//static char cvsid[] = "$Id: libmondo-tools.c 1652 2007-09-24 11:07:01Z bruno $";
190
191extern int g_tape_buffer_size_MB;
192extern char *g_erase_tmpdir_and_scratchdir;
193extern char *g_serial_string;
194extern bool g_text_mode;
195extern int g_currentY;
196extern int g_current_media_number;
197extern char *MONDO_LOGFILE;
198
199/* Reference to global bkpinfo */
200extern struct s_bkpinfo *bkpinfo;
201
202/**
203 * @addtogroup globalGroup
204 * @{
205 */
206bool g_remount_cdrom_at_end,    ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
207 g_remount_floppy_at_end;       ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
208bool g_cd_recovery;             ///< TRUE if we're making an "autonuke" backup.
209double g_kernel_version;
210
211/**
212 * The place where /boot is mounted.
213 */
214char *g_boot_mountpt = NULL;
215
216/**
217 * The location of Mondo's home directory.
218 */
219char *g_mondo_home = NULL;
220
221/**
222 * The serial string (used to differentiate between backups) of the current backup.
223 */
224char *g_serial_string = NULL;
225
226/**
227 * The location where tmpfs is mounted, or "" if it's not mounted.
228 */
229char *g_tmpfs_mountpt = NULL;
230char *g_magicdev_command = NULL;
231
232/**
233 * The default maximum level to log messages at or below.
234 */
235int g_loglevel = DEFAULT_DEBUG_LEVEL;
236
237/* @} - end of globalGroup */
238
239
240extern pid_t g_buffer_pid;
241extern pid_t g_main_pid;
242
243extern t_bkptype g_backup_media_type;
244
245extern bool am_I_in_disaster_recovery_mode(void);
246
247
248/**
249 * @addtogroup utilityGroup
250 * @{
251 */
252/**
253 * Assertion handler. Prints a friendly message to the user,
254 * offering to ignore all, dump core, break to debugger,
255 * exit, or ignore. Intended to be used with an assert() macro.
256 *
257 * @param file The file in which the assertion triggered.
258 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
259 * @param line The line number of the assert() statement.
260 * @param exp The expression that failed (as a string).
261 */
262void _mondo_assert_fail(const char *file,
263                        const char *function, int line, const char *exp)
264{
265    static int ignoring_assertions = 0;
266    bool is_valid = TRUE;
267
268    log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
269           function);
270    if (ignoring_assertions) {
271        log_it("Well, the user doesn't care...");
272        return;
273    }
274#ifndef _XWIN
275    if (!g_text_mode)
276        newtSuspend();
277#endif
278    printf("ASSERTION FAILED: `%s'\n", exp);
279    printf("\tat %s:%d in %s\n\n", file, line, function);
280    printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
281    do {
282        is_valid = TRUE;
283        switch (toupper(getchar())) {
284        case 'A':               // ignore (A)ll
285            ignoring_assertions = 1;
286            break;
287        case 'B':               // a(B)ort
288            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
289            raise(SIGABRT);
290            break;              /* "can't get here" */
291        case 'D':               // (D)ebug, aka asm("int 3")
292#ifdef __IA32__
293            __asm__ __volatile__("int $3"); // break to debugger
294#endif
295            break;
296        case 'E':               // (E)xit
297            fatal_error("Failed assertion -- see above for details");
298            break;              /* "can't get here" */
299        case 'I':               // (I)gnore
300            break;
301            /* These next two work as follows:
302               the `default' catches the user's invalid choice and says so;
303               the '\n' catches the newline on the end and prints the prompt again.
304             */
305        case '\n':
306            printf
307                ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
308            break;
309        default:
310            is_valid = FALSE;
311            printf("Invalid choice.\n");
312            break;
313        }
314    } while (!is_valid);
315
316    if (ignoring_assertions) {
317        log_it("Ignoring ALL assertions from now on.");
318    } else {
319        log_it("Ignoring assertion: %s", exp);
320    }
321
322    getchar();                  // skip \n
323
324#ifndef _XWIN
325    if (!g_text_mode)
326        newtResume();
327#endif
328}
329
330/**
331 * Clean's up users' KDE desktops.
332 * @bug Details about this function are unknown.
333 */
334void clean_up_KDE_desktop_if_necessary(void)
335{
336    char *tmp;
337
338    malloc_string(tmp);
339    strcpy(tmp,
340           "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
341file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
342awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
343else { print $0;};}' $file.old  > $file ; fi ; done");
344    run_program_and_log_output(tmp, 5);
345    paranoid_free(tmp);
346}
347
348
349/**
350 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
351 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
352 *
353 * @param home_sz String to store the home directory ("" if it could not be found).
354 * @return 0 for success, nonzero for failure.
355 */
356int find_and_store_mondoarchives_home(char *home_sz)
357{
358    assert(home_sz != NULL);
359    strcpy(home_sz, MONDO_SHARE);
360    return (0);
361}
362
363
364char *get_architecture(void) {
365#ifdef __IA32__
366#   ifdef __X86_64__
367        return ("x86_64");
368#   else
369        return ("i386");
370#   endif
371#endif
372#ifdef __IA64__
373    return ("ia64");
374#endif
375    return ("unknown");
376}
377
378
379char *get_uname_m(void) {
380
381    struct utsname utsn;
382    char *tmp = NULL;
383
384    uname(&utsn);
385    asprintf(&tmp, utsn.machine);
386    return (tmp);
387}
388
389
390
391double get_kernel_version(void)
392{
393    char *p, tmp[200];
394    double d;
395#ifdef __FreeBSD__
396    // JOSH - FIXME :)
397    d = 5.2;                    // :-)
398#else
399    strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
400    p = strchr(tmp, '.');
401    if (p) {
402        p = strchr(++p, '.');
403        if (p) {
404            while (*p) {
405                *p = *(p + 1);
406                p++;
407            }
408        }
409    }
410//  log_msg(1, "tmp = '%s'", tmp);
411    d = atof(tmp);
412#endif
413    log_msg(1, "g_kernel_version = %f", d);
414    return (d);
415}
416
417
418
419
420
421/**
422 * Get the current time.
423 * @return number of seconds since the epoch.
424 */
425long get_time()
426{
427    return (long) time((void *) 0);
428}
429
430
431
432
433
434
435
436/**
437 * Initialize a RAID volume structure, setting fields to zero. The
438 * actual hard drive is unaffected.
439 *
440 * @param raidrec The RAID volume structure to initialize.
441 * @note This function is system dependent.
442 */
443#ifdef __FreeBSD__
444void initialize_raidrec(struct vinum_volume *raidrec)
445{
446    int i, j;
447    raidrec->volname[0] = '\0';
448    raidrec->plexes = 0;
449    for (i = 0; i < 9; ++i) {
450        raidrec->plex[i].raidlevel = -1;
451        raidrec->plex[i].stripesize = 0;
452        raidrec->plex[i].subdisks = 0;
453        for (j = 0; j < 9; ++j) {
454            strcpy(raidrec->plex[i].sd[j].which_device, "");
455        }
456    }
457}
458#else
459void initialize_raidrec(struct raid_device_record *raidrec)
460{
461    assert(raidrec != NULL);
462    raidrec->raid_device[0] = '\0';
463    raidrec->raid_level = -9;
464    raidrec->persistent_superblock = 1;
465    raidrec->chunk_size = 64;
466    raidrec->parity = -1;
467    raidrec->data_disks.entries = 0;
468    raidrec->spare_disks.entries = 0;
469    raidrec->parity_disks.entries = 0;
470    raidrec->failed_disks.entries = 0;
471    raidrec->additional_vars.entries = 0;
472}
473#endif
474
475
476
477
478/**
479 * Insert modules that Mondo requires.
480 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
481 * @c msdosfs and @c ext2fs for FreeBSD.
482 */
483void insmod_crucial_modules(void)
484{
485#ifdef __FreeBSD__
486    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
487    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
488#else
489    system("modprobe -a msdos vfat loop &> /dev/null");
490#endif
491}
492
493
494/**
495 * Log a trace message to the trace file.
496 * @bug This function seems orphaned. Please remove.
497 */
498void log_trace(char *o)
499{
500    /*@ pointers **************************************************** */
501    FILE *fout;
502
503    /*@ buffers ***************************************************** */
504    char output[MAX_STR_LEN];
505
506    /*@ int    ****************************************************** */
507    int i;
508
509    /*@ end vars *************************************************** */
510
511    if (o[0] == '\0') {
512        return;
513    }
514    strcpy(output, o);
515    i = (int) strlen(output);
516    if (i <= 0) {
517        return;
518    }
519    if (output[i - 1] < 32) {
520        output[i - 1] = '\0';
521    }
522    if (g_text_mode
523        /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
524        printf("%s\n", output);
525    }
526
527    fout = fopen(MONDO_TRACEFILE, "a");
528    if (fout) {
529        fprintf(fout, "%s\n", output);
530        paranoid_fclose(fout);
531    } else {
532        log_OS_error("Cannot write to tracefile");
533    }
534}
535
536
537
538
539
540/**
541 * Finish configuring the backup information structure. Call this function
542 * to set the parameters that depend on those that can be given on the command
543 * line.
544 *
545 * @param bkpinfo The backup information structure. Fields modified/used:
546 * - Used: @c bkpinfo->backup_data
547 * - Used: @c bkpinfo->backup_media_type
548 * - Used: @c bkpinfo->cdrw_speed
549 * - Used: @c bkpinfo->compression_level
550 * - Used: @c bkpinfo->include_paths
551 * - Used: @c bkpinfo->prefix
552 * - Used: @c bkpinfo->isodir
553 * - Used: @c bkpinfo->manual_cd_tray
554 * - Used: @c bkpinfo->make_cd_use_lilo
555 * - Used: @c bkpinfo->media_device
556 * - Used: @c bkpinfo->nfs_mount
557 * - Used: @c bkpinfo->nonbootable_backup
558 * - Used: @c bkpinfo->scratchdir
559 * - Used: @c bkpinfo->tmpdir
560 * - Used: @c bkpinfo->use_lzo
561 * - Modified: @c bkpinfo->call_before_iso
562 * - Modified: @c bkpinfo->call_make_iso
563 * - Modified: @c bkpinfo->optimal_set_size
564 * - Modified: @c bkpinfo->zip_exe
565 * - Modified: @c bkpinfo->zip_suffix
566 *
567 * @return number of errors, or 0 for success.
568 * @note Also creates directories that are specified in the @c bkpinfo structure but
569 * do not exist.
570 */
571int post_param_configuration()
572{
573    char *extra_cdrom_params;
574    char *mondo_mkisofs_sz;
575    char *command;
576    char *mtpt;
577    char *hostname, *ip_address;
578    int retval = 0;
579    long avm = 0;
580    char *colon;
581    char *cdr_exe;
582    char *tmp;
583    char call_before_iso_user[MAX_STR_LEN] = "\0";
584    int rdsiz_MB;
585    char *iso_dev;
586    char *iso_mnt;
587    char *iso_tmp;
588    char *iso_path;
589
590    assert(bkpinfo != NULL);
591    malloc_string(extra_cdrom_params);
592    malloc_string(mondo_mkisofs_sz);
593    malloc_string(command);
594    malloc_string(mtpt);
595    malloc_string(hostname);
596    malloc_string(ip_address);
597    malloc_string(cdr_exe);
598    malloc_string(tmp);
599    malloc_string(iso_dev);
600    malloc_string(iso_mnt);
601    malloc_string(iso_tmp);
602    malloc_string(iso_path);
603    bkpinfo->optimal_set_size =
604        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
605        1024;
606
607    log_msg(1, "Foo");
608    if (bkpinfo->backup_media_type == tape) {
609        log_msg(1, "Bar");
610        sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
611        log_msg(1, "tmp = '%s'", tmp);
612        if (run_program_and_log_output(tmp, 3)) {
613            fatal_error
614                ("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.");
615        }
616    }
617    make_hole_for_dir(bkpinfo->scratchdir);
618    make_hole_for_dir(bkpinfo->tmpdir);
619    if (bkpinfo->backup_media_type == iso)
620        make_hole_for_dir(bkpinfo->isodir);
621
622    run_program_and_log_output("uname -a", 5);
623    run_program_and_log_output("cat /etc/*-release", 5);
624    run_program_and_log_output("cat /etc/*issue*", 5);
625    sprintf(g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
626    sprintf(command, "mkdir -p %s", g_tmpfs_mountpt);
627    paranoid_system(command);
628    rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
629#ifdef __FreeBSD__
630    strcpy(tmp,
631           call_program_and_get_last_line_of_output
632           ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
633    avm += atol(tmp);
634    strcpy(tmp,
635           call_program_and_get_last_line_of_output
636           ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
637    avm += atol(tmp);
638    sprintf(command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
639            g_tmpfs_mountpt);
640#else
641    strcpy(tmp,
642           call_program_and_get_last_line_of_output
643           ("free | grep ':' | tr -s ' ' '\t' | cut -f2 | head -n1"));
644    avm += atol(tmp);
645    sprintf(command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
646            g_tmpfs_mountpt, rdsiz_MB, 'm');
647    run_program_and_log_output("cat /proc/cpuinfo", 5);
648    run_program_and_log_output
649        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
650         5);
651#endif
652    if (avm / 1024 > rdsiz_MB * 3) {
653        if (run_program_and_log_output(command, 5)) {
654            g_tmpfs_mountpt[0] = '\0';
655            log_it("Failed to mount tmpfs");
656        } else {
657            log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
658        }
659    } else {
660        g_tmpfs_mountpt[0] = '\0';
661        log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
662    }
663
664    if (bkpinfo->use_lzo) {
665        strcpy(bkpinfo->zip_exe, "lzop");
666        strcpy(bkpinfo->zip_suffix, "lzo");
667    } else if (bkpinfo->use_gzip) {
668        strcpy(bkpinfo->zip_exe, "gzip");
669        strcpy(bkpinfo->zip_suffix, "gz");
670    } else if (bkpinfo->compression_level != 0) {
671        strcpy(bkpinfo->zip_exe, "bzip2");
672        strcpy(bkpinfo->zip_suffix, "bz2");
673    } else {
674        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
675    }
676
677// DVD
678
679    if (bkpinfo->backup_media_type == dvd) {
680        extra_cdrom_params[0] = '\0';
681        mondo_mkisofs_sz[0] = '\0';
682        if (find_home_of_exe("growisofs")) {
683            strcpy(cdr_exe, "growisofs");
684        }                       // unlikely to be used
685        else {
686            fatal_error("Please install growisofs.");
687        }
688        if (bkpinfo->nonbootable_backup) {
689            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
690        } else if
691#ifdef __FreeBSD__
692            (TRUE)
693#else
694            (bkpinfo->make_cd_use_lilo)
695#endif
696#ifdef __IA64__
697    {
698        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
699    }
700#else
701    {
702        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
703    }
704#endif
705        else
706        {
707            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
708        }
709        if (bkpinfo->manual_cd_tray) {
710            fatal_error("Manual CD tray + DVD not supported yet.");
711            // -m isn't supported by growisofs, BTW...
712        } else {
713            sprintf(bkpinfo->call_make_iso,
714                    "%s %s -Z %s . 2>> _ERR_",
715                    mondo_mkisofs_sz,
716                    extra_cdrom_params, bkpinfo->media_device);
717        }
718        if (getenv ("SUDO_COMMAND")) {
719            sprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
720            if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
721                popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
722                fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
723            }       
724        }
725        log_msg(2, "call_make_iso (DVD res) is ... %s",
726                bkpinfo->call_make_iso);
727    }                           // end of DVD code
728
729// CD-R or CD-RW
730    if (bkpinfo->backup_media_type == cdrw
731        || bkpinfo->backup_media_type == cdr) {
732        extra_cdrom_params[0] = '\0';
733        if (!bkpinfo->manual_cd_tray) {
734            strcat(extra_cdrom_params, "-waiti ");
735        }
736        if (bkpinfo->backup_media_type == cdrw) {
737            strcat(extra_cdrom_params, "blank=fast ");
738        }
739        if (find_home_of_exe("cdrecord")) {
740            strcpy(cdr_exe, "cdrecord");
741        } else if (find_home_of_exe("dvdrecord")) {
742            strcpy(cdr_exe, "dvdrecord");
743        } else {
744            fatal_error("Please install either cdrecord or dvdrecord.");
745        }
746        if (bkpinfo->nonbootable_backup) {
747            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
748        } else if
749#ifdef __FreeBSD__
750            (TRUE)
751#else
752            (bkpinfo->make_cd_use_lilo)
753#endif
754#ifdef __IA64__
755    {
756        strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
757    }
758#else
759    {
760        strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
761    }
762#endif
763        else
764        {
765            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
766        }
767        if (bkpinfo->manual_cd_tray) {
768            if (bkpinfo->call_before_iso[0] == '\0') {
769            sprintf(bkpinfo->call_before_iso,
770                        "%s -o %s/temporary.iso . 2>> _ERR_",
771                        mondo_mkisofs_sz, bkpinfo->tmpdir);
772                } else {
773                strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
774                sprintf (bkpinfo->call_before_iso,
775                                    "( %s -o %s/temporary.iso . 2>> _ERR_ ; %s )",
776                        mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
777            }
778            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
779            sprintf(bkpinfo->call_make_iso,
780                    "%s %s -v %s fs=4m dev=%s speed=%d %s/temporary.iso",
781                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
782                    extra_cdrom_params, bkpinfo->media_device,
783                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
784        } else {
785            sprintf(bkpinfo->call_make_iso,
786                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
787                    mondo_mkisofs_sz, cdr_exe,
788                    (bkpinfo->please_dont_eject) ? " " : "-eject",
789                    extra_cdrom_params, bkpinfo->media_device,
790                    bkpinfo->cdrw_speed);
791        }
792    }                           // end of CD code
793
794    /*
795       if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
796       {
797       sprintf (tmp,
798       "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
799       bkpinfo->media_device, bkpinfo->internal_tape_block_size);
800       if (system(tmp))
801       {
802       retval++;
803       fprintf (stderr,
804       "Cannot write to tape device. Is the tape set read-only?\n");
805       }
806       } // end of tape code
807     */
808
809
810    if (bkpinfo->backup_media_type == iso) {
811
812/* Patch by Conor Daly <conor.daly@met.ie>
813 * 23-june-2004
814 * Break up isodir into iso_mnt and iso_path
815 * These will be used along with iso-dev at restore time
816 * to locate the ISOs where ever they're mounted
817 */
818
819        log_it("isodir = %s", bkpinfo->isodir);
820        sprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1",
821                bkpinfo->isodir);
822        log_it("command = %s", command);
823        log_it("res of it = %s",
824               call_program_and_get_last_line_of_output(command));
825        sprintf(iso_dev, "%s",
826                call_program_and_get_last_line_of_output(command));
827        sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
828        write_one_liner_data_file(tmp,
829                                  call_program_and_get_last_line_of_output
830                                  (command));
831
832        sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
833                iso_dev);
834        log_it("command = %s", command);
835        log_it("res of it = %s",
836               call_program_and_get_last_line_of_output(command));
837        sprintf(iso_mnt, "%s",
838                call_program_and_get_last_line_of_output(command));
839        sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
840        write_one_liner_data_file(tmp,
841                                  call_program_and_get_last_line_of_output
842                                  (command));
843        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
844        sprintf(iso_tmp, "%s", bkpinfo->isodir);
845        if (strlen(iso_tmp) < strlen(iso_mnt)) {
846            iso_path[0] = '\0';
847        } else {
848            sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
849        }
850        sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
851        write_one_liner_data_file(tmp, iso_path);
852        log_it("isodir: %s", iso_path);
853        sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
854        write_one_liner_data_file(tmp, bkpinfo->prefix);
855        log_it("iso-prefix: %s",  bkpinfo->prefix);
856
857/* End patch */
858    }                           // end of iso code
859
860    if (bkpinfo->backup_media_type == nfs) {
861        strcpy(hostname, bkpinfo->nfs_mount);
862        colon = strchr(hostname, ':');
863        if (!colon) {
864            log_it("nfs mount doesn't have a colon in it");
865            retval++;
866        } else {
867            struct hostent *hent;
868
869            *colon = '\0';
870            hent = gethostbyname(hostname);
871            if (!hent) {
872                log_it("Can't resolve NFS mount (%s): %s", hostname,
873                       hstrerror(h_errno));
874                retval++;
875            } else {
876                strcpy(ip_address, inet_ntoa
877                       ((struct in_addr)
878                        *((struct in_addr *) hent->h_addr)));
879                strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
880                strcpy(bkpinfo->nfs_mount, ip_address);
881            }
882        }
883        store_nfs_config();
884    }
885
886    log_it("Finished processing incoming params");
887    if (retval) {
888        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
889    }
890    sprintf(tmp, "%s", MONDO_TMPISOS);  /* added #define 22 apr 2002 */
891    if (does_file_exist(tmp)) {
892        unlink(tmp);
893    }
894    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
895        log_it("tmpdir or scratchdir are blank/missing");
896        retval++;
897    }
898    if (bkpinfo->include_paths[0] == '\0') {
899        //      fatal_error ("Why no backup path?");
900        strcpy(bkpinfo->include_paths, "/");
901    }
902    chmod(bkpinfo->scratchdir, 0700);
903    chmod(bkpinfo->tmpdir, 0700);
904    g_backup_media_type = bkpinfo->backup_media_type;
905    paranoid_free(mtpt);
906    paranoid_free(extra_cdrom_params);
907    paranoid_free(mondo_mkisofs_sz);
908    paranoid_free(command);
909    paranoid_free(hostname);
910    paranoid_free(ip_address);
911    paranoid_free(cdr_exe);
912    paranoid_free(tmp);
913    paranoid_free(iso_dev);
914    paranoid_free(iso_mnt);
915    paranoid_free(iso_tmp);
916    paranoid_free(iso_path);
917    return (retval);
918}
919
920
921
922/**
923 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
924 * Seeds the random-number generator, loads important modules, checks the sanity
925 * of the user's Linux distribution, and deletes logfile.
926 * @param bkpinfo The backup information structure. Will be initialized.
927 * @return number of errors (0 for success)
928 */
929int pre_param_configuration()
930{
931    int res = 0;
932    char *tmp = NULL;
933
934    make_hole_for_dir(MNT_CDROM);
935    assert(bkpinfo != NULL);
936    srandom((unsigned long) (time(NULL)));
937    insmod_crucial_modules();
938    if (bkpinfo->disaster_recovery) {
939        if (!does_nonMS_partition_exist()) {
940            fatal_error
941                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
942        }
943    }
944
945    unlink(MONDO_TRACEFILE);
946    asprintf(&tmp,"rm -Rf %s/changed.files*",bkpinfo->tmpdir);
947    run_program_and_log_output(tmp, FALSE);
948    paranoid_free(tmp);
949    if (find_and_store_mondoarchives_home(g_mondo_home)) {
950        fprintf(stderr,
951                "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");
952        res++;
953        return (res);
954    }
955    res += some_basic_system_sanity_checks();
956    if (res) {
957        log_it("Your distribution did not pass Mondo's sanity test.");
958    }
959    g_current_media_number = 1;
960    bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
961    return (res);
962}
963
964
965
966
967/**
968 * Reset all fields of the backup information structure to a sensible default.
969 * @param bkpinfo The @c bkpinfo to reset.
970 */
971void reset_bkpinfo()
972{
973    int i;
974
975    log_msg(1, "Hi");
976    assert(bkpinfo != NULL);
977    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
978    bkpinfo->manual_cd_tray = FALSE;
979    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
980    bkpinfo->media_device[0] = '\0';
981    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
982        bkpinfo->media_size[i] = -1;
983    }
984    bkpinfo->boot_loader = '\0';
985    bkpinfo->boot_device[0] = '\0';
986    bkpinfo->zip_exe[0] = '\0';
987    bkpinfo->zip_suffix[0] = '\0';
988    bkpinfo->restore_path[0] = '\0';
989    bkpinfo->use_lzo = FALSE;
990    bkpinfo->use_gzip = FALSE;
991    bkpinfo->do_not_compress_these[0] = '\0';
992    bkpinfo->verify_data = FALSE;
993    bkpinfo->backup_data = FALSE;
994    bkpinfo->restore_data = FALSE;
995    bkpinfo->disaster_recovery =
996        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
997    if (bkpinfo->disaster_recovery) {
998        strcpy(bkpinfo->isodir, "/");
999    } else {
1000        strcpy(bkpinfo->isodir, "/root/images/mondo");
1001    }
1002    strcpy(bkpinfo->prefix, STD_PREFIX);
1003
1004    bkpinfo->scratchdir[0] = '\0';
1005    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
1006    sprintf(bkpinfo->tmpdir, "%s/tmpfs/mondo.tmp.%d", "/tmp", (int) (random() % 32768));    // for mondorestore
1007    bkpinfo->optimal_set_size = 0;
1008    bkpinfo->backup_media_type = none;
1009    strcpy(bkpinfo->include_paths, "/");
1010    bkpinfo->exclude_paths[0] = '\0';
1011    bkpinfo->call_before_iso[0] = '\0';
1012    bkpinfo->call_make_iso[0] = '\0';
1013    bkpinfo->call_burn_iso[0] = '\0';
1014    bkpinfo->call_after_iso[0] = '\0';
1015    bkpinfo->image_devs[0] = '\0';
1016    bkpinfo->postnuke_tarball[0] = '\0';
1017    bkpinfo->kernel_path[0] = '\0';
1018    bkpinfo->nfs_mount[0] = '\0';
1019    bkpinfo->nfs_remote_dir[0] = '\0';
1020    bkpinfo->wipe_media_first = FALSE;
1021    bkpinfo->differential = FALSE;
1022    bkpinfo->cdrw_speed = 0;
1023// patch by Herman Kuster 
1024    bkpinfo->differential = 0;
1025// patch end
1026    bkpinfo->compression_level = 3;
1027}
1028
1029
1030
1031
1032/**
1033 * Get the remaining free space (in MB) on @p partition.
1034 * @param partition The partition to check free space on (either a device or a mountpoint).
1035 * @return The free space on @p partition, in MB.
1036 */
1037long free_space_on_given_partition(char *partition)
1038{
1039    char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
1040    long res;
1041
1042    assert_string_is_neither_NULL_nor_zerolength(partition);
1043
1044    sprintf(command, "df -m -P %s &> /dev/null", partition);
1045    if (system(command)) {
1046        return (-1);
1047    }                           // partition does not exist
1048    sprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
1049            partition);
1050    strcpy(out_sz, call_program_and_get_last_line_of_output(command));
1051    if (strlen(out_sz) == 0) {
1052        return (-1);
1053    }                           // error within df, probably
1054    res = atol(out_sz);
1055    return (res);
1056}
1057
1058
1059
1060/**
1061 * Check the user's system for sanity. Checks performed:
1062 * - make sure user has enough RAM (32mb required, 64mb recommended)
1063 * - make sure user has enough free space in @c /
1064 * - check kernel for ramdisk support
1065 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
1066 * - make sure CD-ROM is unmounted
1067 * - make sure /etc/modules.conf exists
1068 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
1069 *
1070 * @return number of problems with the user's setup (0 for success)
1071 */
1072int some_basic_system_sanity_checks()
1073{
1074
1075    /*@ buffers ************ */
1076    char tmp[MAX_STR_LEN];
1077    //  char command[MAX_STR_LEN];
1078
1079    /*@ int's *************** */
1080    int retval = 0;
1081    long Lres;
1082
1083
1084    mvaddstr_and_log_it(g_currentY, 0,
1085                        "Checking sanity of your Linux distribution");
1086#ifndef __FreeBSD__
1087    if (system("which mkfs.vfat &> /dev/null")
1088        && !system("which mkfs.msdos &> /dev/null")) {
1089        log_it
1090            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
1091        run_program_and_log_output
1092            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
1093    }
1094    strcpy(tmp,
1095           call_program_and_get_last_line_of_output
1096           ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
1097    if (atol(tmp) < 35000) {
1098        retval++;
1099        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
1100    }
1101    if (atol(tmp) < 66000) {
1102        log_to_screen
1103            ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
1104    }
1105#endif
1106
1107    Lres = free_space_on_given_partition(MINDI_CACHE);
1108    log_it("Free space on partition of %s = %ld MB", MINDI_CACHE, Lres);
1109
1110    if (Lres < 50) {
1111        sprintf(tmp, "The partition of %s has <50MB free. Please free up space or enlarge the partition or make %s a symbolic link.", MINDI_CACHE, MINDI_CACHE); 
1112        fatal_error(tmp);
1113    }
1114
1115    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
1116        retval++;
1117        log_to_screen
1118            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
1119        fatal_error
1120            ("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. :)");
1121    }
1122#ifndef __FreeBSD__
1123    if (run_program_and_log_output
1124        ("grep ramdisk /proc/devices", FALSE)) {
1125        if (!ask_me_yes_or_no
1126            ("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?"))
1127        {
1128            //          retval++;
1129            log_to_screen
1130                ("It looks as if your kernel lacks ramdisk and initrd support.");
1131            log_to_screen
1132                ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
1133        }
1134    }
1135#endif
1136    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
1137    retval += whine_if_not_found("mkisofs");
1138    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
1139        retval += whine_if_not_found("cdrecord");
1140    }
1141    retval += whine_if_not_found("bzip2");
1142    retval += whine_if_not_found("gzip");
1143    retval += whine_if_not_found("awk");
1144    retval += whine_if_not_found("md5sum");
1145    retval += whine_if_not_found("strings");
1146    retval += whine_if_not_found("mindi");
1147    retval += whine_if_not_found("buffer");
1148
1149    // abort if Windows partition but no ms-sys and parted
1150    if (!run_program_and_log_output
1151        ("mount | grep -w vfat | grep -vE \"/dev/fd|nexdisk\"", 0)
1152        ||
1153        !run_program_and_log_output
1154        ("mount | grep -w dos | grep -vE \"/dev/fd|nexdisk\"", 0)) {
1155        log_to_screen("I think you have a Windows 9x partition.");
1156        retval += whine_if_not_found("parted");
1157#ifndef __IA64__
1158        /* IA64 always has one vfat partition for EFI even without Windows */
1159        // retval +=
1160        if (!find_home_of_exe("ms-sys")) {
1161            log_to_screen("Please install ms-sys just in case.");
1162        }
1163#endif
1164    }
1165
1166    if (!find_home_of_exe("cmp")) {
1167        if (!find_home_of_exe("true")) {
1168            whine_if_not_found("cmp");
1169        } else {
1170            log_to_screen
1171                ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1172            if (run_program_and_log_output
1173                ("cp -f `which true` /usr/bin/cmp", 0)) {
1174                fatal_error("Failed to create dummy 'cmp' file.");
1175            }
1176        }
1177    }
1178    run_program_and_log_output
1179        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1180    strcpy(tmp,
1181           call_program_and_get_last_line_of_output
1182           ("mount | grep -E \"cdr(om|w)\""));
1183    if (strcmp("", tmp)) {
1184        if (strstr(tmp, "autofs")) {
1185            log_to_screen
1186                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1187            log_to_screen
1188                ("if a CD actually is inserted. If a CD is inserted, please");
1189            log_to_screen("eject it. Thank you.");
1190            log_it
1191                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1192        } else
1193            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1194            retval++;
1195            fatal_error
1196                ("Your CD-ROM drive is mounted. Please unmount it.");
1197        }
1198    }
1199#ifndef __FreeBSD__
1200    if (!does_file_exist("/etc/modules.conf")) {
1201        if (does_file_exist("/etc/conf.modules")) {
1202            log_it("Linking /etc/modules.conf to /etc/conf.modules");
1203            run_program_and_log_output
1204                ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
1205        } else if (does_file_exist("/etc/modprobe.d")) {
1206            log_it
1207                ("Directory /etc/modprobe.d found. mindi will use its contents.");
1208        } else if (does_file_exist("/etc/modprobe.conf")) {
1209            log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
1210            run_program_and_log_output
1211                ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
1212        } else {
1213            retval++;
1214            log_to_screen
1215                ("Please find out what happened to /etc/modules.conf");
1216        }
1217    }
1218#endif
1219
1220    run_program_and_log_output("cat /etc/fstab", 5);
1221#ifdef __FreeBSD__
1222    run_program_and_log_output("vinum printconfig", 5);
1223#else
1224    run_program_and_log_output("cat /etc/raidtab", 5);
1225#endif
1226
1227    if (run_program_and_log_output("mindi -V", 1)) {
1228        log_to_screen("Could not ascertain mindi's version number.");
1229        log_to_screen
1230            ("You have not installed Mondo and/or Mindi properly.");
1231        log_to_screen("Please uninstall and reinstall them both.");
1232        fatal_error("Please reinstall Mondo and Mindi.");
1233    }
1234    sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1235    if (run_program_and_log_output(tmp, 5)) {
1236        sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1237        log_to_screen(tmp);
1238        log_to_screen
1239            ("Please run that command by hand and examine /var/log/mindi.log");
1240        log_to_screen
1241            ("for more information. Perhaps your /etc/fstab file is insane.");
1242        log_to_screen
1243            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1244        retval++;
1245    }
1246
1247    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1248        && !does_file_exist("/etc/raidtab")) {
1249        log_to_screen
1250            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1251        create_raidtab_from_mdstat("/etc/raidtab");
1252    }
1253
1254    if (retval) {
1255        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1256    } else {
1257        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1258    }
1259    return (retval);
1260}
1261
1262/**
1263 * Retrieve the line containing @p label from the config file.
1264 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1265 * @param label What to read from the file.
1266 * @param value Where to put it.
1267 * @return 0 for success, 1 for failure.
1268 */
1269int read_cfg_var(char *config_file, char *label, char *value)
1270{
1271    /*@ buffer ****************************************************** */
1272    char command[MAX_STR_LEN * 2];
1273    char tmp[MAX_STR_LEN];
1274
1275    /*@ end vars *************************************************** */
1276
1277    assert_string_is_neither_NULL_nor_zerolength(config_file);
1278    assert_string_is_neither_NULL_nor_zerolength(label);
1279    if (!does_file_exist(config_file)) {
1280        sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1281                config_file);
1282        log_to_screen(tmp);
1283        value[0] = '\0';
1284        return (1);
1285    } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1286        log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1287        return (0);
1288    } else {
1289        sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1290                label, config_file);
1291        strcpy(value, call_program_and_get_last_line_of_output(command));
1292        if (strlen(value) == 0) {
1293            return (1);
1294        } else {
1295            return (0);
1296        }
1297    }
1298}
1299
1300
1301
1302/**
1303 * Remount @c supermount if it was unmounted earlier.
1304 */
1305void remount_supermounts_if_necessary()
1306{
1307    if (g_remount_cdrom_at_end) {
1308        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1309    }
1310    if (g_remount_floppy_at_end) {
1311        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1312    }
1313}
1314
1315/**
1316 * Unmount @c supermount if it's mounted.
1317 */
1318void unmount_supermounts_if_necessary()
1319{
1320    if (run_program_and_log_output
1321        ("mount | grep cdrom | grep super", FALSE) == 0) {
1322        g_remount_cdrom_at_end = TRUE;
1323        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1324    }
1325    if (run_program_and_log_output
1326        ("mount | grep floppy | grep super", FALSE) == 0) {
1327        g_remount_floppy_at_end = TRUE;
1328        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1329    }
1330}
1331
1332/**
1333 * Whether we had to stop autofs (if so, restart it at end).
1334 */
1335bool g_autofs_stopped = FALSE;
1336
1337/**
1338 * Path to the autofs initscript ("" if none exists).
1339 */
1340char g_autofs_exe[MAX_STR_LEN];
1341
1342/**
1343 * Autofs initscript in Xandros Linux distribution.
1344 */
1345#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1346
1347/**
1348 * Autofs initscript in most Linux distributions.
1349 */
1350#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1351
1352/**
1353 * If autofs is mounted, stop it (restart at end).
1354 */
1355void stop_autofs_if_necessary()
1356{
1357    char tmp[MAX_STR_LEN];
1358
1359    g_autofs_exe[0] = '\0';
1360    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1361        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1362    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1363        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1364    }
1365
1366    if (!g_autofs_exe[0]) {
1367        log_msg(3, "No autofs detected.");
1368    } else {
1369        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1370// FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1371        sprintf(tmp, "%s stop", g_autofs_exe);
1372        if (run_program_and_log_output(tmp, 2)) {
1373            log_it("Failed to stop autofs - I assume it wasn't running");
1374        } else {
1375            g_autofs_stopped = TRUE;
1376            log_it("Stopped autofs OK");
1377        }
1378    }
1379}
1380
1381/**
1382 * If autofs was stopped earlier, restart it.
1383 */
1384void restart_autofs_if_necessary()
1385{
1386    char tmp[MAX_STR_LEN];
1387
1388    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1389        log_msg(3, "No autofs detected.");
1390        return;
1391    }
1392    sprintf(tmp, "%s start", g_autofs_exe);
1393    if (run_program_and_log_output(tmp, 2)) {
1394        log_it("Failed to start autofs");
1395    } else {
1396        g_autofs_stopped = FALSE;
1397        log_it("Started autofs OK");
1398    }
1399}
1400
1401
1402/**
1403 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1404 */
1405void mount_boot_if_necessary()
1406{
1407    char tmp[MAX_STR_LEN];
1408    char command[MAX_STR_LEN];
1409
1410    log_msg(1, "Started sub");
1411    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1412    g_boot_mountpt[0] = '\0';
1413    log_msg(4, "Done. Great. Seeting command to something");
1414    strcpy(command,
1415           "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[   ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1416    log_msg(4, "Cool. Command = '%s'", command);
1417    strcpy(tmp, call_program_and_get_last_line_of_output(command));
1418    log_msg(4, "tmp = '%s'", tmp);
1419    if (tmp[0]) {
1420        log_it("/boot is at %s according to /etc/fstab", tmp);
1421        if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1422            if (!run_program_and_log_output("mount /boot", 5)) {
1423                strcpy(g_boot_mountpt, "/boot");
1424                log_msg(1, "Mounted /boot");
1425            } else {
1426                log_it("...ignored cos it's a label or uuid :-)");
1427            }
1428        } else {
1429            sprintf(command, "mount | grep -E '^%s'", tmp);
1430            log_msg(3, "command = %s", command);
1431            if (run_program_and_log_output(command, 5)) {
1432                strcpy(g_boot_mountpt, tmp);
1433                sprintf(tmp,
1434                        "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1435                        g_boot_mountpt);
1436                log_it(tmp);
1437                sprintf(tmp, "mount %s", g_boot_mountpt);
1438                if (run_program_and_log_output(tmp, 5)) {
1439                    g_boot_mountpt[0] = '\0';
1440                    log_msg(1, "Plan B");
1441                    if (!run_program_and_log_output("mount /boot", 5)) {
1442                        strcpy(g_boot_mountpt, "/boot");
1443                        log_msg(1, "Plan B worked");
1444                    } else {
1445                        log_msg(1,
1446                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1447                    }
1448                }
1449            }
1450        }
1451    }
1452    log_msg(1, "Ended sub");
1453}
1454
1455
1456/**
1457 * If we mounted /boot earlier, unmount it.
1458 */
1459void unmount_boot_if_necessary()
1460{
1461    char tmp[MAX_STR_LEN];
1462
1463    log_msg(3, "starting");
1464    if (g_boot_mountpt[0]) {
1465        sprintf(tmp, "umount %s", g_boot_mountpt);
1466        if (run_program_and_log_output(tmp, 5)) {
1467            log_it("WARNING - unable to unmount /boot");
1468        }
1469    }
1470    log_msg(3, "leaving");
1471}
1472
1473
1474
1475/**
1476 * Write a line to a configuration file. Writes a line of the form,
1477 * @c label @c value.
1478 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1479 * @param label What to call this bit of data you're writing.
1480 * @param value The bit of data you're writing.
1481 * @return 0 for success, 1 for failure.
1482 */
1483int write_cfg_var(char *config_file, char *label, char *value)
1484{
1485    /*@ buffers ***************************************************** */
1486    char command[MAX_STR_LEN * 2];
1487    char tempfile[MAX_STR_LEN];
1488    char tmp[MAX_STR_LEN];
1489
1490
1491    /*@ end vars *************************************************** */
1492    assert_string_is_neither_NULL_nor_zerolength(config_file);
1493    assert_string_is_neither_NULL_nor_zerolength(label);
1494    assert(value != NULL);
1495    if (!does_file_exist(config_file)) {
1496        sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1497                config_file);
1498        log_to_screen(tmp);
1499        return (1);
1500    }
1501    sprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1502    if (does_file_exist(config_file)) {
1503        sprintf(command, "grep -vE '^%s .*$' %s > %s",
1504                label, config_file, tempfile);
1505        paranoid_system(command);
1506    }
1507    sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1508    paranoid_system(command);
1509    sprintf(command, "mv -f %s %s", tempfile, config_file);
1510    paranoid_system(command);
1511    unlink(tempfile);
1512    return (0);
1513}
1514
1515
1516/**
1517 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1518 * information to the logfile.
1519 */
1520void standard_log_debug_msg(int debug_level, const char *szFile,
1521                            const char *szFunction, int nLine,
1522                            const char *fmt, ...)
1523{
1524    va_list args;
1525    int i;
1526    static int depth = 0;
1527    char *tmp;
1528    FILE *fout;
1529
1530    if (depth > 5) {
1531        depth--;
1532        return;
1533    }
1534    depth++;
1535
1536    malloc_string(tmp);
1537
1538    if (debug_level <= g_loglevel) {
1539        va_start(args, fmt);
1540        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1541            return;
1542        }                       // fatal_error("Failed to openout to logfile - sheesh..."); }
1543
1544        // add tabs to distinguish log levels
1545        if (debug_level > 0) {
1546            for (i = 1; i < debug_level; i++)
1547                fprintf(fout, "\t");
1548            if (getpid() == g_main_pid)
1549                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1550                        nLine);
1551            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1552                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1553                        nLine);
1554            else
1555                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1556                        szFunction, nLine);
1557        }
1558        vfprintf(fout, fmt, args);
1559
1560        // do not slow down the progran if standard debug level
1561        // must be enabled: if no flush, the log won't be up-to-date if there
1562        // is a segfault
1563        //if (g_dwDebugLevel != 1)
1564
1565        va_end(args);
1566        fprintf(fout, "\n");
1567        paranoid_fclose(fout);
1568    }
1569    depth--;
1570    paranoid_free(tmp);
1571}
1572
1573/**
1574 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1575 */
1576void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1577                       ...) = standard_log_debug_msg;
1578
1579
1580/**
1581 * If @p y, malloc @p x, else free @p x.
1582 * @bug This function seems orphaned. Please remove.
1583 */
1584#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1585
1586/**
1587 * Allocate or free important globals, depending on @p mal.
1588 * @param mal If TRUE, malloc; if FALSE, free.
1589 */
1590void do_libmondo_global_strings_thing(int mal)
1591{
1592    if (mal) {
1593        iamhere("Malloc'ing globals");
1594        malloc_string(g_boot_mountpt);
1595        malloc_string(g_mondo_home);
1596        malloc_string(g_tmpfs_mountpt);
1597        malloc_string(g_erase_tmpdir_and_scratchdir);
1598        malloc_string(g_serial_string);
1599        malloc_string(g_magicdev_command);
1600    } else {
1601        iamhere("Freeing globals");
1602        paranoid_free(g_boot_mountpt);
1603        paranoid_free(g_mondo_home);
1604        paranoid_free(g_tmpfs_mountpt);
1605        paranoid_free(g_erase_tmpdir_and_scratchdir);
1606        paranoid_free(g_serial_string);
1607        paranoid_free(g_magicdev_command);
1608    }
1609
1610    /*
1611       char**list_of_arrays[] = {
1612       &g_boot_mountpt,
1613       &g_mondo_home,
1614       &g_tmpfs_mountpt,
1615       &g_erase_tmpdir_and_scratchdir,
1616       &g_serial_string,
1617       &g_magicdev_command,
1618       NULL};
1619
1620       char**ppcurr;
1621       int i;
1622
1623       for(i=0;list_of_arrays[i];i++)
1624       {
1625       log_msg(5, "Allocating %d", i);
1626       ppcurr = list_of_arrays[i];
1627       if (mal)
1628       { *ppcurr = malloc(MAX_STR_LEN); }
1629       else
1630       {
1631       if (*ppcurr)
1632       {
1633       free(*ppcurr);
1634       }
1635       }
1636       }
1637       log_msg(5, "Returning");
1638     */
1639}
1640
1641/**
1642 * Allocate important globals.
1643 * @see do_libmondo_global_strings_thing
1644 */
1645void malloc_libmondo_global_strings(void)
1646{
1647    do_libmondo_global_strings_thing(1);
1648}
1649
1650/**
1651 * Free important globals.
1652 * @see do_libmondo_global_strings_thing
1653 */
1654void free_libmondo_global_strings(void)
1655{
1656    do_libmondo_global_strings_thing(0);
1657}
1658
1659
1660
1661/**
1662 * Stop @c magicdev if it's running.
1663 * The command used to start it is saved in @p g_magicdev_command.
1664 */
1665void stop_magicdev_if_necessary()
1666{
1667    strcpy(g_magicdev_command,
1668           call_program_and_get_last_line_of_output
1669           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1670    if (g_magicdev_command[0]) {
1671        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1672        paranoid_system("killall magicdev");
1673    }
1674}
1675
1676
1677/**
1678 * Restart magicdev if it was stopped.
1679 */
1680void restart_magicdev_if_necessary()
1681{
1682    char *tmp;
1683
1684    malloc_string(tmp);
1685    if (g_magicdev_command && g_magicdev_command[0]) {
1686        sprintf(tmp, "%s &", g_magicdev_command);
1687        paranoid_system(tmp);
1688    }
1689    paranoid_free(tmp);
1690}
1691
1692/* @} - end of utilityGroup */
Note: See TracBrowser for help on using the repository browser.