source: branches/stable/mondo/mondo/common/libmondo-tools.c @ 678

Last change on this file since 678 was 678, checked in by bcornec, 14 years ago

Fix a bug in analyze-my-lvm for RHEL3 where vgdisplay prints an additional field sometimes (#). Report and proposal by severine.lombardo_at_acoss.fr

  • Property svn:keywords set to Id
File size: 44.6 KB
Line 
1/* libmondo-tools.c                                  misc tools
2   $Id: libmondo-tools.c 678 2006-06-24 16:08:01Z bcornec $
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
187/*@unused@*/
188//static char cvsid[] = "$Id: libmondo-tools.c 678 2006-06-24 16:08:01Z bcornec $";
189
190extern int g_tape_buffer_size_MB;
191extern char *g_erase_tmpdir_and_scratchdir;
192extern char *g_serial_string;
193extern bool g_text_mode;
194extern int g_currentY;
195extern int g_current_media_number;
196
197/**
198 * @addtogroup globalGroup
199 * @{
200 */
201bool g_remount_cdrom_at_end,    ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
202 g_remount_floppy_at_end;       ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
203bool g_cd_recovery;             ///< TRUE if we're making an "autonuke" backup.
204double g_kernel_version;
205
206/**
207 * The place where /boot is mounted.
208 */
209char *g_boot_mountpt = NULL;
210
211/**
212 * The location of Mondo's home directory.
213 */
214char *g_mondo_home = NULL;
215
216/**
217 * The serial string (used to differentiate between backups) of the current backup.
218 */
219char *g_serial_string = NULL;
220
221/**
222 * The location where tmpfs is mounted, or "" if it's not mounted.
223 */
224char *g_tmpfs_mountpt = NULL;
225char *g_magicdev_command = NULL;
226
227/**
228 * The default maximum level to log messages at or below.
229 */
230int g_loglevel = DEFAULT_DEBUG_LEVEL;
231
232/* @} - end of globalGroup */
233
234
235extern pid_t g_buffer_pid;
236extern pid_t g_main_pid;
237
238extern t_bkptype g_backup_media_type;
239
240extern bool am_I_in_disaster_recovery_mode(void);
241
242
243/**
244 * @addtogroup utilityGroup
245 * @{
246 */
247/**
248 * Assertion handler. Prints a friendly message to the user,
249 * offering to ignore all, dump core, break to debugger,
250 * exit, or ignore. Intended to be used with an assert() macro.
251 *
252 * @param file The file in which the assertion triggered.
253 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
254 * @param line The line number of the assert() statement.
255 * @param exp The expression that failed (as a string).
256 */
257void _mondo_assert_fail(const char *file,
258                        const char *function, int line, const char *exp)
259{
260    static int ignoring_assertions = 0;
261    bool is_valid = TRUE;
262
263    log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
264           function);
265    if (ignoring_assertions) {
266        log_it("Well, the user doesn't care...");
267        return;
268    }
269#ifndef _XWIN
270    if (!g_text_mode)
271        newtSuspend();
272#endif
273    printf("ASSERTION FAILED: `%s'\n", exp);
274    printf("\tat %s:%d in %s\n\n", file, line, function);
275    printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
276    do {
277        is_valid = TRUE;
278        switch (toupper(getchar())) {
279        case 'A':               // ignore (A)ll
280            ignoring_assertions = 1;
281            break;
282        case 'B':               // a(B)ort
283            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
284            raise(SIGABRT);
285            break;              /* "can't get here" */
286        case 'D':               // (D)ebug, aka asm("int 3")
287#ifdef __IA32__
288            __asm__ __volatile__("int $3"); // break to debugger
289#endif
290            break;
291        case 'E':               // (E)xit
292            fatal_error("Failed assertion -- see above for details");
293            break;              /* "can't get here" */
294        case 'I':               // (I)gnore
295            break;
296            /* These next two work as follows:
297               the `default' catches the user's invalid choice and says so;
298               the '\n' catches the newline on the end and prints the prompt again.
299             */
300        case '\n':
301            printf
302                ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
303            break;
304        default:
305            is_valid = FALSE;
306            printf("Invalid choice.\n");
307            break;
308        }
309    } while (!is_valid);
310
311    if (ignoring_assertions) {
312        log_it("Ignoring ALL assertions from now on.");
313    } else {
314        log_it("Ignoring assertion: %s", exp);
315    }
316
317    getchar();                  // skip \n
318
319#ifndef _XWIN
320    if (!g_text_mode)
321        newtResume();
322#endif
323}
324
325/**
326 * Clean's up users' KDE desktops.
327 * @bug Details about this function are unknown.
328 */
329void clean_up_KDE_desktop_if_necessary(void)
330{
331    char *tmp;
332
333    malloc_string(tmp);
334    strcpy(tmp,
335           "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
336file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
337awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
338else { print $0;};}' $file.old  > $file ; fi ; done");
339    run_program_and_log_output(tmp, 5);
340    paranoid_free(tmp);
341}
342
343
344/**
345 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
346 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
347 *
348 * @param home_sz String to store the home directory ("" if it could not be found).
349 * @return 0 for success, nonzero for failure.
350 */
351int find_and_store_mondoarchives_home(char *home_sz)
352{
353    assert(home_sz != NULL);
354    strcpy(home_sz, MONDO_SHARE);
355    return (0);
356}
357
358
359char *get_architecture()
360{
361#ifdef __IA32__
362    return ("i386");
363#endif
364#ifdef __IA64__
365    return ("ia64");
366#endif
367    return ("unknown");
368}
369
370
371
372double get_kernel_version()
373{
374    char *p, tmp[200];
375    double d;
376#ifdef __FreeBSD__
377    // JOSH - FIXME :)
378    d = 5.2;                    // :-)
379#else
380    strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
381    p = strchr(tmp, '.');
382    if (p) {
383        p = strchr(++p, '.');
384        if (p) {
385            while (*p) {
386                *p = *(p + 1);
387                p++;
388            }
389        }
390    }
391//  log_msg(1, "tmp = '%s'", tmp);
392    d = atof(tmp);
393#endif
394    log_msg(1, "g_kernel_version = %f", d);
395    return (d);
396}
397
398
399
400
401
402/**
403 * Get the current time.
404 * @return number of seconds since the epoch.
405 */
406long get_time()
407{
408    return (long) time((void *) 0);
409}
410
411
412
413
414
415
416
417/**
418 * Initialize a RAID volume structure, setting fields to zero. The
419 * actual hard drive is unaffected.
420 *
421 * @param raidrec The RAID volume structure to initialize.
422 * @note This function is system dependent.
423 */
424#ifdef __FreeBSD__
425void initialize_raidrec(struct vinum_volume *raidrec)
426{
427    int i, j;
428    raidrec->volname[0] = '\0';
429    raidrec->plexes = 0;
430    for (i = 0; i < 9; ++i) {
431        raidrec->plex[i].raidlevel = -1;
432        raidrec->plex[i].stripesize = 0;
433        raidrec->plex[i].subdisks = 0;
434        for (j = 0; j < 9; ++j) {
435            strcpy(raidrec->plex[i].sd[j].which_device, "");
436        }
437    }
438}
439#else
440void initialize_raidrec(struct raid_device_record *raidrec)
441{
442    assert(raidrec != NULL);
443    raidrec->raid_device[0] = '\0';
444    raidrec->raid_level = -9;
445    raidrec->persistent_superblock = 1;
446    raidrec->chunk_size = 64;
447    raidrec->parity = -1;
448    raidrec->data_disks.entries = 0;
449    raidrec->spare_disks.entries = 0;
450    raidrec->parity_disks.entries = 0;
451    raidrec->failed_disks.entries = 0;
452    raidrec->additional_vars.entries = 0;
453}
454#endif
455
456
457
458
459/**
460 * Insert modules that Mondo requires.
461 * Currently inserts @c dos, @c fat, @c vfat, and @c osst for Linux;
462 * @c msdosfs and @c ext2fs for FreeBSD.
463 */
464void insmod_crucial_modules(void)
465{
466#ifdef __FreeBSD__
467    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
468    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
469#else
470    system("modprobe dos &> /dev/null");
471    system("modprobe fat &> /dev/null");
472    system("modprobe vfat &> /dev/null");
473    //  system("modprobe osst &> /dev/null");
474#endif
475}
476
477
478/**
479 * Log a trace message to the trace file.
480 * @bug This function seems orphaned. Please remove.
481 */
482void log_trace(char *o)
483{
484    /*@ pointers **************************************************** */
485    FILE *fout;
486
487    /*@ buffers ***************************************************** */
488    char output[MAX_STR_LEN];
489
490    /*@ int    ****************************************************** */
491    int i;
492
493    /*@ end vars *************************************************** */
494
495    if (o[0] == '\0') {
496        return;
497    }
498    strcpy(output, o);
499    i = (int) strlen(output);
500    if (i <= 0) {
501        return;
502    }
503    if (output[i - 1] < 32) {
504        output[i - 1] = '\0';
505    }
506    if (g_text_mode
507        /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
508        printf("%s\n", output);
509    }
510
511    fout = fopen(MONDO_TRACEFILE, "a");
512    if (fout) {
513        fprintf(fout, "%s\n", output);
514        paranoid_fclose(fout);
515    } else {
516        log_OS_error("Cannot write to tracefile");
517    }
518}
519
520
521
522
523
524/**
525 * Finish configuring the backup information structure. Call this function
526 * to set the parameters that depend on those that can be given on the command
527 * line.
528 *
529 * @param bkpinfo The backup information structure. Fields modified/used:
530 * - Used: @c bkpinfo->backup_data
531 * - Used: @c bkpinfo->backup_media_type
532 * - Used: @c bkpinfo->cdrw_speed
533 * - Used: @c bkpinfo->compression_level
534 * - Used: @c bkpinfo->include_paths
535 * - Used: @c bkpinfo->prefix
536 * - Used: @c bkpinfo->isodir
537 * - Used: @c bkpinfo->manual_cd_tray
538 * - Used: @c bkpinfo->make_cd_use_lilo
539 * - Used: @c bkpinfo->media_device
540 * - Used: @c bkpinfo->nfs_mount
541 * - Used: @c bkpinfo->nonbootable_backup
542 * - Used: @c bkpinfo->scratchdir
543 * - Used: @c bkpinfo->tmpdir
544 * - Used: @c bkpinfo->use_lzo
545 * - Modified: @c bkpinfo->call_before_iso
546 * - Modified: @c bkpinfo->call_make_iso
547 * - Modified: @c bkpinfo->optimal_set_size
548 * - Modified: @c bkpinfo->zip_exe
549 * - Modified: @c bkpinfo->zip_suffix
550 *
551 * @return number of errors, or 0 for success.
552 * @note Also creates directories that are specified in the @c bkpinfo structure but
553 * do not exist.
554 */
555int post_param_configuration(struct s_bkpinfo *bkpinfo)
556{
557    char *extra_cdrom_params;
558    char *mondo_mkisofs_sz;
559    char *command;
560    char *mtpt;
561    char *hostname, *ip_address;
562    int retval = 0;
563    long avm = 0;
564    char *colon;
565    char *cdr_exe;
566    char *tmp;
567    char call_before_iso_user[MAX_STR_LEN] = "\0";
568    int rdsiz_MB;
569    char *iso_dev;
570    char *iso_mnt;
571    char *iso_tmp;
572    char *iso_path;
573
574    assert(bkpinfo != NULL);
575    malloc_string(extra_cdrom_params);
576    malloc_string(mondo_mkisofs_sz);
577    malloc_string(command);
578    malloc_string(mtpt);
579    malloc_string(hostname);
580    malloc_string(ip_address);
581    malloc_string(cdr_exe);
582    malloc_string(tmp);
583    malloc_string(iso_dev);
584    malloc_string(iso_mnt);
585    malloc_string(iso_tmp);
586    malloc_string(iso_path);
587    bkpinfo->optimal_set_size =
588        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 4 : 8) *
589        1024;
590
591    log_msg(1, "Foo");
592    if (bkpinfo->backup_media_type == tape) {
593        log_msg(1, "Bar");
594        sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
595        log_msg(1, "tmp = '%s'", tmp);
596        if (run_program_and_log_output(tmp, 3)) {
597            fatal_error
598                ("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.");
599        }
600    }
601    make_hole_for_dir(bkpinfo->scratchdir);
602    make_hole_for_dir(bkpinfo->tmpdir);
603    if (bkpinfo->backup_media_type == iso)
604        make_hole_for_dir(bkpinfo->isodir);
605
606    run_program_and_log_output("uname -a", 5);
607    run_program_and_log_output("cat /etc/*-release", 5);
608    run_program_and_log_output("cat /etc/*issue*", 5);
609    sprintf(g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
610    sprintf(command, "mkdir -p %s", g_tmpfs_mountpt);
611    paranoid_system(command);
612    rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
613#ifdef __FreeBSD__
614    strcpy(tmp,
615           call_program_and_get_last_line_of_output
616           ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
617    avm += atol(tmp);
618    strcpy(tmp,
619           call_program_and_get_last_line_of_output
620           ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
621    avm += atol(tmp);
622    sprintf(command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
623            g_tmpfs_mountpt);
624#else
625    strcpy(tmp,
626           call_program_and_get_last_line_of_output
627           ("free | grep \":\" | tr -s ' ' '\t' | cut -f2 | head -n1"));
628    avm += atol(tmp);
629    sprintf(command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
630            g_tmpfs_mountpt, rdsiz_MB, 'm');
631    run_program_and_log_output("cat /proc/cpuinfo", 5);
632    run_program_and_log_output
633        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
634         5);
635#endif
636    if (avm / 1024 > rdsiz_MB * 3) {
637        if (run_program_and_log_output(command, 5)) {
638            g_tmpfs_mountpt[0] = '\0';
639            log_it("Failed to mount tmpfs");
640        } else {
641            log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
642        }
643    } else {
644        g_tmpfs_mountpt[0] = '\0';
645        log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
646    }
647
648    if (bkpinfo->use_lzo) {
649        strcpy(bkpinfo->zip_exe, "lzop");
650        strcpy(bkpinfo->zip_suffix, "lzo");
651    } else if (bkpinfo->compression_level != 0) {
652        strcpy(bkpinfo->zip_exe, "bzip2");
653        strcpy(bkpinfo->zip_suffix, "bz2");
654    } else {
655        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
656    }
657
658// DVD
659
660    if (bkpinfo->backup_media_type == dvd) {
661        extra_cdrom_params[0] = '\0';
662        mondo_mkisofs_sz[0] = '\0';
663        if (find_home_of_exe("growisofs")) {
664            strcpy(cdr_exe, "growisofs");
665        }                       // unlikely to be used
666        else {
667            fatal_error("Please install growisofs.");
668        }
669        if (bkpinfo->nonbootable_backup) {
670            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
671        } else if
672#ifdef __FreeBSD__
673            (TRUE)
674#else
675            (bkpinfo->make_cd_use_lilo)
676#endif
677#ifdef __IA64__
678    {
679        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
680    }
681#else
682    {
683        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
684    }
685#endif
686        else
687        {
688            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
689        }
690        if (bkpinfo->manual_cd_tray) {
691            fatal_error("Manual CD tray + DVD not supported yet.");
692            // -m isn't supported by growisofs, BTW...
693        } else {
694            sprintf(bkpinfo->call_make_iso,
695                    "%s %s -Z %s . 2>> _ERR_",
696                    mondo_mkisofs_sz,
697                    extra_cdrom_params, bkpinfo->media_device);
698        }
699        if (getenv ("SUDO_COMMAND")) {
700            fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
701        }
702        log_msg(2, "call_make_iso (DVD res) is ... %s",
703                bkpinfo->call_make_iso);
704    }                           // end of DVD code
705
706// CD-R or CD-RW
707    if (bkpinfo->backup_media_type == cdrw
708        || bkpinfo->backup_media_type == cdr) {
709        extra_cdrom_params[0] = '\0';
710        if (!bkpinfo->manual_cd_tray) {
711            strcat(extra_cdrom_params, "-waiti ");
712        }
713        if (bkpinfo->backup_media_type == cdrw) {
714            strcat(extra_cdrom_params, "blank=fast ");
715        }
716        if (find_home_of_exe("cdrecord")) {
717            strcpy(cdr_exe, "cdrecord");
718        } else if (find_home_of_exe("dvdrecord")) {
719            strcpy(cdr_exe, "dvdrecord");
720        } else {
721            fatal_error("Please install either cdrecord or dvdrecord.");
722        }
723        if (bkpinfo->nonbootable_backup) {
724            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
725        } else if
726#ifdef __FreeBSD__
727            (TRUE)
728#else
729            (bkpinfo->make_cd_use_lilo)
730#endif
731#ifdef __IA64__
732    {
733        strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
734    }
735#else
736    {
737        strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
738    }
739#endif
740        else
741        {
742            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
743        }
744        if (bkpinfo->manual_cd_tray) {
745            if (bkpinfo->call_before_iso[0] == '\0') {
746            sprintf(bkpinfo->call_before_iso,
747                        "%s -o %s/temporary.iso . 2>> _ERR_",
748                        mondo_mkisofs_sz, bkpinfo->tmpdir);
749                } else {
750                strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
751                sprintf (bkpinfo->call_before_iso,
752                                    "( %s -o %s/temporary.iso . 2>> _ERR_ ; %s )",
753                        mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
754            }
755            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
756            sprintf(bkpinfo->call_make_iso,
757                    "%s %s -v %s fs=4m dev=%s speed=%d %s/temporary.iso",
758                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
759                    extra_cdrom_params, bkpinfo->media_device,
760                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
761        } else {
762            sprintf(bkpinfo->call_make_iso,
763                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
764                    mondo_mkisofs_sz, cdr_exe,
765                    (bkpinfo->please_dont_eject) ? " " : "-eject",
766                    extra_cdrom_params, bkpinfo->media_device,
767                    bkpinfo->cdrw_speed);
768        }
769    }                           // end of CD code
770
771    /*
772       if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
773       {
774       sprintf (tmp,
775       "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
776       bkpinfo->media_device, bkpinfo->internal_tape_block_size);
777       if (system(tmp))
778       {
779       retval++;
780       fprintf (stderr,
781       "Cannot write to tape device. Is the tape set read-only?\n");
782       }
783       } // end of tape code
784     */
785
786
787    if (bkpinfo->backup_media_type == iso) {
788
789/* Patch by Conor Daly <conor.daly@met.ie>
790 * 23-june-2004
791 * Break up isodir into iso_mnt and iso_path
792 * These will be used along with iso-dev at restore time
793 * to locate the ISOs where ever they're mounted
794 */
795
796        log_it("isodir = %s", bkpinfo->isodir);
797        sprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1",
798                bkpinfo->isodir);
799        log_it("command = %s", command);
800        log_it("res of it = %s",
801               call_program_and_get_last_line_of_output(command));
802        sprintf(iso_dev, "%s",
803                call_program_and_get_last_line_of_output(command));
804        sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
805        write_one_liner_data_file(tmp,
806                                  call_program_and_get_last_line_of_output
807                                  (command));
808
809        sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
810                iso_dev);
811        log_it("command = %s", command);
812        log_it("res of it = %s",
813               call_program_and_get_last_line_of_output(command));
814        sprintf(iso_mnt, "%s",
815                call_program_and_get_last_line_of_output(command));
816        sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
817        write_one_liner_data_file(tmp,
818                                  call_program_and_get_last_line_of_output
819                                  (command));
820        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
821        sprintf(iso_tmp, "%s", bkpinfo->isodir);
822        if (strlen(iso_tmp) < strlen(iso_mnt)) {
823            iso_path[0] = '\0';
824        } else {
825            sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
826        }
827        sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
828        write_one_liner_data_file(tmp, iso_path);
829        log_it("isodir: %s", iso_path);
830        sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
831        write_one_liner_data_file(tmp, bkpinfo->prefix);
832        log_it("iso-prefix: %s",  bkpinfo->prefix);
833
834/* End patch */
835    }                           // end of iso code
836
837    if (bkpinfo->backup_media_type == nfs) {
838        strcpy(hostname, bkpinfo->nfs_mount);
839        colon = strchr(hostname, ':');
840        if (!colon) {
841            log_it("nfs mount doesn't have a colon in it");
842            retval++;
843        } else {
844            struct hostent *hent;
845
846            *colon = '\0';
847            hent = gethostbyname(hostname);
848            if (!hent) {
849                log_it("Can't resolve NFS mount (%s): %s", hostname,
850                       hstrerror(h_errno));
851                retval++;
852            } else {
853                strcpy(ip_address, inet_ntoa
854                       ((struct in_addr)
855                        *((struct in_addr *) hent->h_addr)));
856                strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
857                strcpy(bkpinfo->nfs_mount, ip_address);
858            }
859        }
860        store_nfs_config(bkpinfo);
861    }
862
863    log_it("Finished processing incoming params");
864    if (retval) {
865        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
866    }
867    sprintf(tmp, "%s", MONDO_TMPISOS);  /* added #define 22 apr 2002 */
868    if (does_file_exist(tmp)) {
869        unlink(tmp);
870    }
871    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
872        log_it("tmpdir or scratchdir are blank/missing");
873        retval++;
874    }
875    if (bkpinfo->include_paths[0] == '\0') {
876        //      fatal_error ("Why no backup path?");
877        strcpy(bkpinfo->include_paths, "/");
878    }
879    chmod(bkpinfo->scratchdir, 0700);
880    chmod(bkpinfo->tmpdir, 0700);
881    g_backup_media_type = bkpinfo->backup_media_type;
882    paranoid_free(mtpt);
883    paranoid_free(extra_cdrom_params);
884    paranoid_free(mondo_mkisofs_sz);
885    paranoid_free(command);
886    paranoid_free(hostname);
887    paranoid_free(ip_address);
888    paranoid_free(cdr_exe);
889    paranoid_free(tmp);
890    paranoid_free(iso_dev);
891    paranoid_free(iso_mnt);
892    paranoid_free(iso_tmp);
893    paranoid_free(iso_path);
894    return (retval);
895}
896
897
898
899/**
900 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
901 * Seeds the random-number generator, loads important modules, checks the sanity
902 * of the user's Linux distribution, and deletes logfile.
903 * @param bkpinfo The backup information structure. Will be initialized.
904 * @return number of errors (0 for success)
905 */
906int pre_param_configuration(struct s_bkpinfo *bkpinfo)
907{
908    int res = 0;
909
910    make_hole_for_dir(MNT_CDROM);
911    assert(bkpinfo != NULL);
912    srandom((unsigned long) (time(NULL)));
913    insmod_crucial_modules();
914    reset_bkpinfo(bkpinfo);     // also sets defaults ('/'=backup path, 3=compression level)
915    if (bkpinfo->disaster_recovery) {
916        if (!does_nonMS_partition_exist()) {
917            fatal_error
918                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
919        }
920    }
921
922    unlink(MONDO_TRACEFILE);
923    run_program_and_log_output("rm -Rf /tmp/changed.files*", FALSE);
924    if (find_and_store_mondoarchives_home(g_mondo_home)) {
925        fprintf(stderr,
926                "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");
927        res++;
928        return (res);
929    }
930    res += some_basic_system_sanity_checks();
931    if (res) {
932        log_it("Your distribution did not pass Mondo's sanity test.");
933    }
934    g_current_media_number = 1;
935    bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
936    return (res);
937}
938
939
940
941
942/**
943 * Reset all fields of the backup information structure to a sensible default.
944 * @param bkpinfo The @c bkpinfo to reset.
945 */
946void reset_bkpinfo(struct s_bkpinfo *bkpinfo)
947{
948    int i;
949
950    log_msg(1, "Hi");
951    assert(bkpinfo != NULL);
952    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
953    bkpinfo->manual_cd_tray = FALSE;
954    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
955    bkpinfo->media_device[0] = '\0';
956    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
957        bkpinfo->media_size[i] = -1;
958    }
959    bkpinfo->boot_loader = '\0';
960    bkpinfo->boot_device[0] = '\0';
961    bkpinfo->zip_exe[0] = '\0';
962    bkpinfo->zip_suffix[0] = '\0';
963    bkpinfo->restore_path[0] = '\0';
964    bkpinfo->use_lzo = FALSE;
965    bkpinfo->do_not_compress_these[0] = '\0';
966    bkpinfo->verify_data = FALSE;
967    bkpinfo->backup_data = FALSE;
968    bkpinfo->restore_data = FALSE;
969    bkpinfo->disaster_recovery =
970        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
971    if (bkpinfo->disaster_recovery) {
972        strcpy(bkpinfo->isodir, "/");
973    } else {
974        strcpy(bkpinfo->isodir, "/root/images/mondo");
975    }
976    strcpy(bkpinfo->prefix, STD_PREFIX);
977
978    bkpinfo->scratchdir[0] = '\0';
979    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
980    sprintf(bkpinfo->tmpdir, "/tmp/tmpfs/mondo.tmp.%d", (int) (random() % 32768));  // for mondorestore
981    bkpinfo->optimal_set_size = 0;
982    bkpinfo->backup_media_type = none;
983    strcpy(bkpinfo->include_paths, "/");
984    bkpinfo->exclude_paths[0] = '\0';
985    bkpinfo->call_before_iso[0] = '\0';
986    bkpinfo->call_make_iso[0] = '\0';
987    bkpinfo->call_burn_iso[0] = '\0';
988    bkpinfo->call_after_iso[0] = '\0';
989    bkpinfo->image_devs[0] = '\0';
990    bkpinfo->postnuke_tarball[0] = '\0';
991    bkpinfo->kernel_path[0] = '\0';
992    bkpinfo->nfs_mount[0] = '\0';
993    bkpinfo->nfs_remote_dir[0] = '\0';
994    bkpinfo->wipe_media_first = FALSE;
995    bkpinfo->differential = FALSE;
996    bkpinfo->cdrw_speed = 0;
997// patch by Herman Kuster 
998    bkpinfo->differential = 0;
999// patch end
1000    bkpinfo->compression_level = 3;
1001}
1002
1003
1004
1005
1006/**
1007 * Get the remaining free space (in MB) on @p partition.
1008 * @param partition The partition to check free space on (either a device or a mountpoint).
1009 * @return The free space on @p partition, in MB.
1010 */
1011long free_space_on_given_partition(char *partition)
1012{
1013    char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
1014    long res;
1015
1016    assert_string_is_neither_NULL_nor_zerolength(partition);
1017
1018    sprintf(command, "df -m -P %s &> /dev/null", partition);
1019    if (system(command)) {
1020        return (-1);
1021    }                           // partition does not exist
1022    sprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
1023            partition);
1024    strcpy(out_sz, call_program_and_get_last_line_of_output(command));
1025    if (strlen(out_sz) == 0) {
1026        return (-1);
1027    }                           // error within df, probably
1028    res = atol(out_sz);
1029    return (res);
1030}
1031
1032
1033
1034/**
1035 * Check the user's system for sanity. Checks performed:
1036 * - make sure user has enough RAM (32mb required, 64mb recommended)
1037 * - make sure user has enough free space in @c /
1038 * - check kernel for ramdisk support
1039 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
1040 * - make sure CD-ROM is unmounted
1041 * - make sure /etc/modules.conf exists
1042 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
1043 *
1044 * @return number of problems with the user's setup (0 for success)
1045 */
1046int some_basic_system_sanity_checks()
1047{
1048
1049    /*@ buffers ************ */
1050    char tmp[MAX_STR_LEN];
1051    //  char command[MAX_STR_LEN];
1052
1053    /*@ int's *************** */
1054    int retval = 0;
1055    long Lres;
1056
1057
1058    mvaddstr_and_log_it(g_currentY, 0,
1059                        "Checking sanity of your Linux distribution");
1060#ifndef __FreeBSD__
1061    if (system("which mkfs.vfat &> /dev/null")
1062        && !system("which mkfs.msdos &> /dev/null")) {
1063        log_it
1064            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
1065        run_program_and_log_output
1066            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
1067    }
1068    strcpy(tmp,
1069           call_program_and_get_last_line_of_output
1070           ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
1071    if (atol(tmp) < 35000) {
1072        retval++;
1073        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
1074    }
1075    if (atol(tmp) < 66000) {
1076        log_to_screen
1077            ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
1078    }
1079#endif
1080
1081    if ((Lres = free_space_on_given_partition("/root")) == -1) {
1082        Lres = free_space_on_given_partition("/");
1083    }
1084    log_it("Free space on given partition = %ld MB", Lres);
1085
1086    if (Lres < 50) {
1087        run_program_and_log_output
1088            ("rm -Rf /root/images/mindi; mkdir -p /home/root/images/mindi; mkdir -p /root/images; ln -sf /home/root/images/mindi /root/images/mindi",
1089             3);
1090        //      fatal_error("Your / (or /root) partition has <50MB free. Please adjust your partition table to something saner.");
1091    }
1092
1093    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
1094        retval++;
1095        log_to_screen
1096            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
1097        fatal_error
1098            ("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. :)");
1099    }
1100#ifndef __FreeBSD__
1101    if (run_program_and_log_output
1102        ("grep ramdisk /proc/devices", FALSE)) {
1103        if (!ask_me_yes_or_no
1104            ("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?"))
1105        {
1106            //          retval++;
1107            log_to_screen
1108                ("It looks as if your kernel lacks ramdisk and initrd support.");
1109            log_to_screen
1110                ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
1111        }
1112    }
1113#endif
1114    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
1115    retval += whine_if_not_found("mkisofs");
1116    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
1117        retval += whine_if_not_found("cdrecord");
1118    }
1119    retval += whine_if_not_found("bzip2");
1120    retval += whine_if_not_found("awk");
1121    retval += whine_if_not_found("md5sum");
1122    retval += whine_if_not_found("strings");
1123    retval += whine_if_not_found("mindi");
1124    retval += whine_if_not_found("buffer");
1125
1126    // abort if Windows partition but no ms-sys and parted
1127    if (!run_program_and_log_output
1128        ("mount | grep -w vfat | grep -v /dev/fd | grep -v nexdisk", 0)
1129        ||
1130        !run_program_and_log_output
1131        ("mount | grep -w dos | grep -v /dev/fd | grep -v nexdisk", 0)) {
1132        log_to_screen("I think you have a Windows 9x partition.");
1133        retval += whine_if_not_found("parted");
1134#ifndef __IA64__
1135        /* IA64 always has one vfat partition for EFI even without Windows */
1136        // retval +=
1137        if (!find_home_of_exe("ms-sys")) {
1138            log_to_screen("Please install ms-sys just in case.");
1139        }
1140#endif
1141    }
1142
1143    if (!find_home_of_exe("cmp")) {
1144        if (!find_home_of_exe("true")) {
1145            whine_if_not_found("cmp");
1146        } else {
1147            log_to_screen
1148                ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1149            if (run_program_and_log_output
1150                ("cp -f `which true` /usr/bin/cmp", 0)) {
1151                fatal_error("Failed to create dummy 'cmp' file.");
1152            }
1153        }
1154    }
1155    run_program_and_log_output
1156        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1157    strcpy(tmp,
1158           call_program_and_get_last_line_of_output
1159           ("mount | grep -E \"cdr(om|w)\""));
1160    if (strcmp("", tmp)) {
1161        if (strstr(tmp, "autofs")) {
1162            log_to_screen
1163                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1164            log_to_screen
1165                ("if a CD actually is inserted. If a CD is inserted, please");
1166            log_to_screen("eject it. Thank you.");
1167            log_it
1168                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1169        } else
1170            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1171            retval++;
1172            fatal_error
1173                ("Your CD-ROM drive is mounted. Please unmount it.");
1174        }
1175    }
1176#ifndef __FreeBSD__
1177    if (!does_file_exist("/etc/modules.conf")) {
1178        if (does_file_exist("/etc/conf.modules")) {
1179            log_it("Linking /etc/modules.conf to /etc/conf.modules");
1180            run_program_and_log_output
1181                ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
1182        } else if (does_file_exist("/etc/modprobe.d")) {
1183            log_it
1184                ("Directory /etc/modprobe.d found. mindi will use its contents.");
1185        } else if (does_file_exist("/etc/modprobe.conf")) {
1186            log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
1187            run_program_and_log_output
1188                ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
1189        } else {
1190            retval++;
1191            log_to_screen
1192                ("Please find out what happened to /etc/modules.conf");
1193        }
1194    }
1195#endif
1196
1197    run_program_and_log_output("cat /etc/fstab", 5);
1198#ifdef __FreeBSD__
1199    run_program_and_log_output("vinum printconfig", 5);
1200#else
1201    run_program_and_log_output("cat /etc/raidtab", 5);
1202#endif
1203
1204    if (run_program_and_log_output("mindi -V", 1)) {
1205        log_to_screen("Could not ascertain mindi's version number.");
1206        log_to_screen
1207            ("You have not installed Mondo and/or Mindi properly.");
1208        log_to_screen("Please uninstall and reinstall them both.");
1209        fatal_error("Please reinstall Mondo and Mindi.");
1210    }
1211    if (run_program_and_log_output
1212        ("mindi --makemountlist /tmp/mountlist.txt.test", 5)) {
1213        log_to_screen
1214            ("Mindi --makemountlist /tmp/mountlist.txt.test failed for some reason.");
1215        log_to_screen
1216            ("Please run that command by hand and examine /var/log/mindi.log");
1217        log_to_screen
1218            ("for more information. Perhaps your /etc/fstab file is insane.");
1219        log_to_screen
1220            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1221        retval++;
1222    }
1223
1224    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1225        && !does_file_exist("/etc/raidtab")) {
1226        log_to_screen
1227            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1228        create_raidtab_from_mdstat("/etc/raidtab");
1229    }
1230
1231    if (retval) {
1232        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1233    } else {
1234        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1235    }
1236    return (retval);
1237}
1238
1239/**
1240 * Retrieve the line containing @p label from the config file.
1241 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1242 * @param label What to read from the file.
1243 * @param value Where to put it.
1244 * @return 0 for success, 1 for failure.
1245 */
1246int read_cfg_var(char *config_file, char *label, char *value)
1247{
1248    /*@ buffer ****************************************************** */
1249    char command[MAX_STR_LEN * 2];
1250    char tmp[MAX_STR_LEN];
1251
1252    /*@ end vars *************************************************** */
1253
1254    assert_string_is_neither_NULL_nor_zerolength(config_file);
1255    assert_string_is_neither_NULL_nor_zerolength(label);
1256    if (!does_file_exist(config_file)) {
1257        sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1258                config_file);
1259        log_to_screen(tmp);
1260        value[0] = '\0';
1261        return (1);
1262    } else if (strstr(value, "/dev/") && strstr(value, "t0")
1263               && !strcmp(label, "media-dev")) {
1264        log_msg(2, "FYI, I shan't read new value for %s - already got %s",
1265                label, value);
1266        return (0);
1267    } else {
1268        sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1269                label, config_file);
1270        strcpy(value, call_program_and_get_last_line_of_output(command));
1271        if (strlen(value) == 0) {
1272            return (1);
1273        } else {
1274            return (0);
1275        }
1276    }
1277}
1278
1279
1280
1281/**
1282 * Remount @c supermount if it was unmounted earlier.
1283 */
1284void remount_supermounts_if_necessary()
1285{
1286    if (g_remount_cdrom_at_end) {
1287        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1288    }
1289    if (g_remount_floppy_at_end) {
1290        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1291    }
1292}
1293
1294/**
1295 * Unmount @c supermount if it's mounted.
1296 */
1297void unmount_supermounts_if_necessary()
1298{
1299    if (run_program_and_log_output
1300        ("mount | grep cdrom | grep super", FALSE) == 0) {
1301        g_remount_cdrom_at_end = TRUE;
1302        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1303    }
1304    if (run_program_and_log_output
1305        ("mount | grep floppy | grep super", FALSE) == 0) {
1306        g_remount_floppy_at_end = TRUE;
1307        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1308    }
1309}
1310
1311/**
1312 * Whether we had to stop autofs (if so, restart it at end).
1313 */
1314bool g_autofs_stopped = FALSE;
1315
1316/**
1317 * Path to the autofs initscript ("" if none exists).
1318 */
1319char g_autofs_exe[MAX_STR_LEN];
1320
1321/**
1322 * Autofs initscript in Xandros Linux distribution.
1323 */
1324#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1325
1326/**
1327 * Autofs initscript in most Linux distributions.
1328 */
1329#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1330
1331/**
1332 * If autofs is mounted, stop it (restart at end).
1333 */
1334void stop_autofs_if_necessary()
1335{
1336    char tmp[MAX_STR_LEN];
1337
1338    g_autofs_exe[0] = '\0';
1339    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1340        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1341    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1342        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1343    }
1344
1345    if (!g_autofs_exe[0]) {
1346        log_msg(3, "No autofs detected.");
1347    } else {
1348        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1349// FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1350        sprintf(tmp, "%s stop", g_autofs_exe);
1351        if (run_program_and_log_output(tmp, 2)) {
1352            log_it("Failed to stop autofs - I assume it wasn't running");
1353        } else {
1354            g_autofs_stopped = TRUE;
1355            log_it("Stopped autofs OK");
1356        }
1357    }
1358}
1359
1360/**
1361 * If autofs was stopped earlier, restart it.
1362 */
1363void restart_autofs_if_necessary()
1364{
1365    char tmp[MAX_STR_LEN];
1366
1367    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1368        log_msg(3, "No autofs detected.");
1369        return;
1370    }
1371    sprintf(tmp, "%s start", g_autofs_exe);
1372    if (run_program_and_log_output(tmp, 2)) {
1373        log_it("Failed to start autofs");
1374    } else {
1375        g_autofs_stopped = FALSE;
1376        log_it("Started autofs OK");
1377    }
1378}
1379
1380
1381/**
1382 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1383 */
1384void mount_boot_if_necessary()
1385{
1386    char tmp[MAX_STR_LEN];
1387    char command[MAX_STR_LEN];
1388
1389    log_msg(1, "Started sub");
1390    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1391    g_boot_mountpt[0] = '\0';
1392    log_msg(4, "Done. Great. Seeting command to something");
1393    strcpy(command,
1394           "grep -v \":\" /etc/fstab | grep -vx \"#.*\" | grep -w \"/boot\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1395    log_msg(4, "Cool. Command = '%s'", command);
1396    strcpy(tmp, call_program_and_get_last_line_of_output(command));
1397    log_msg(4, "tmp = '%s'", tmp);
1398    if (tmp[0]) {
1399        log_it("/boot is at %s according to /etc/fstab", tmp);
1400        if (strstr(tmp, "LABEL=")) {
1401            if (!run_program_and_log_output("mount /boot", 5)) {
1402                strcpy(g_boot_mountpt, "/boot");
1403                log_msg(1, "Mounted /boot");
1404            } else {
1405                log_it("...ignored cos it's a label :-)");
1406            }
1407        } else {
1408            sprintf(command, "mount | grep -w \"%s\"", tmp);
1409            log_msg(3, "command = %s", command);
1410            if (run_program_and_log_output(command, 5)) {
1411                strcpy(g_boot_mountpt, tmp);
1412                sprintf(tmp,
1413                        "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1414                        g_boot_mountpt);
1415                log_it(tmp);
1416                sprintf(tmp, "mount %s", g_boot_mountpt);
1417                if (run_program_and_log_output(tmp, 5)) {
1418                    g_boot_mountpt[0] = '\0';
1419                    log_msg(1, "Plan B");
1420                    if (!run_program_and_log_output("mount /boot", 5)) {
1421                        strcpy(g_boot_mountpt, "/boot");
1422                        log_msg(1, "Plan B worked");
1423                    } else {
1424                        log_msg(1,
1425                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1426                    }
1427                }
1428            }
1429        }
1430    }
1431    log_msg(1, "Ended sub");
1432}
1433
1434
1435/**
1436 * If we mounted /boot earlier, unmount it.
1437 */
1438void unmount_boot_if_necessary()
1439{
1440    char tmp[MAX_STR_LEN];
1441
1442    log_msg(3, "starting");
1443    if (g_boot_mountpt[0]) {
1444        sprintf(tmp, "umount %s", g_boot_mountpt);
1445        if (run_program_and_log_output(tmp, 5)) {
1446            log_it("WARNING - unable to unmount /boot");
1447        }
1448    }
1449    log_msg(3, "leaving");
1450}
1451
1452
1453
1454/**
1455 * Write a line to a configuration file. Writes a line of the form,
1456 * @c label @c value.
1457 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1458 * @param label What to call this bit of data you're writing.
1459 * @param value The bit of data you're writing.
1460 * @return 0 for success, 1 for failure.
1461 */
1462int write_cfg_var(char *config_file, char *label, char *value)
1463{
1464    /*@ buffers ***************************************************** */
1465    char command[MAX_STR_LEN * 2];
1466    char tempfile[MAX_STR_LEN];
1467    char tmp[MAX_STR_LEN];
1468
1469
1470    /*@ end vars *************************************************** */
1471    assert_string_is_neither_NULL_nor_zerolength(config_file);
1472    assert_string_is_neither_NULL_nor_zerolength(label);
1473    assert(value != NULL);
1474    if (!does_file_exist(config_file)) {
1475        sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1476                config_file);
1477        log_to_screen(tmp);
1478        return (1);
1479    }
1480    strcpy(tempfile,
1481           call_program_and_get_last_line_of_output
1482           ("mktemp -q /tmp/mojo-jojo.blah.XXXXXX"));
1483    if (does_file_exist(config_file)) {
1484        sprintf(command, "grep -vx '%s .*' %s > %s",
1485                label, config_file, tempfile);
1486        paranoid_system(command);
1487    }
1488    sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1489    paranoid_system(command);
1490    sprintf(command, "mv -f %s %s", tempfile, config_file);
1491    paranoid_system(command);
1492    unlink(tempfile);
1493    return (0);
1494}
1495
1496
1497/**
1498 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1499 * information to the logfile.
1500 */
1501void standard_log_debug_msg(int debug_level, const char *szFile,
1502                            const char *szFunction, int nLine,
1503                            const char *fmt, ...)
1504{
1505    va_list args;
1506    int i;
1507    static int depth = 0;
1508    char *tmp;
1509    FILE *fout;
1510
1511    if (depth > 5) {
1512        depth--;
1513        return;
1514    }
1515    depth++;
1516
1517    malloc_string(tmp);
1518
1519    if (debug_level <= g_loglevel) {
1520        va_start(args, fmt);
1521        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1522            return;
1523        }                       // fatal_error("Failed to openout to logfile - sheesh..."); }
1524
1525        // add tabs to distinguish log levels
1526        if (debug_level > 0) {
1527            for (i = 1; i < debug_level; i++)
1528                fprintf(fout, "\t");
1529            if (getpid() == g_main_pid)
1530                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1531                        nLine);
1532            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1533                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1534                        nLine);
1535            else
1536                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1537                        szFunction, nLine);
1538        }
1539        vfprintf(fout, fmt, args);
1540
1541        // do not slow down the progran if standard debug level
1542        // must be enabled: if no flush, the log won't be up-to-date if there
1543        // is a segfault
1544        //if (g_dwDebugLevel != 1)
1545
1546        va_end(args);
1547        fprintf(fout, "\n");
1548        paranoid_fclose(fout);
1549    }
1550    depth--;
1551    paranoid_free(tmp);
1552}
1553
1554/**
1555 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1556 */
1557void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1558                       ...) = standard_log_debug_msg;
1559
1560
1561/**
1562 * If @p y, malloc @p x, else free @p x.
1563 * @bug This function seems orphaned. Please remove.
1564 */
1565#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1566
1567/**
1568 * Allocate or free important globals, depending on @p mal.
1569 * @param mal If TRUE, malloc; if FALSE, free.
1570 */
1571void do_libmondo_global_strings_thing(int mal)
1572{
1573    if (mal) {
1574        iamhere("Malloc'ing globals");
1575        malloc_string(g_boot_mountpt);
1576        malloc_string(g_mondo_home);
1577        malloc_string(g_tmpfs_mountpt);
1578        malloc_string(g_erase_tmpdir_and_scratchdir);
1579        malloc_string(g_serial_string);
1580        malloc_string(g_magicdev_command);
1581    } else {
1582        iamhere("Freeing globals");
1583        paranoid_free(g_boot_mountpt);
1584        paranoid_free(g_mondo_home);
1585        paranoid_free(g_tmpfs_mountpt);
1586        paranoid_free(g_erase_tmpdir_and_scratchdir);
1587        paranoid_free(g_serial_string);
1588        paranoid_free(g_magicdev_command);
1589    }
1590
1591    /*
1592       char**list_of_arrays[] = {
1593       &g_boot_mountpt,
1594       &g_mondo_home,
1595       &g_tmpfs_mountpt,
1596       &g_erase_tmpdir_and_scratchdir,
1597       &g_serial_string,
1598       &g_magicdev_command,
1599       NULL};
1600
1601       char**ppcurr;
1602       int i;
1603
1604       for(i=0;list_of_arrays[i];i++)
1605       {
1606       log_msg(5, "Allocating %d", i);
1607       ppcurr = list_of_arrays[i];
1608       if (mal)
1609       { *ppcurr = malloc(MAX_STR_LEN); }
1610       else
1611       {
1612       if (*ppcurr)
1613       {
1614       free(*ppcurr);
1615       }
1616       }
1617       }
1618       log_msg(5, "Returning");
1619     */
1620}
1621
1622/**
1623 * Allocate important globals.
1624 * @see do_libmondo_global_strings_thing
1625 */
1626void malloc_libmondo_global_strings(void)
1627{
1628    do_libmondo_global_strings_thing(1);
1629}
1630
1631/**
1632 * Free important globals.
1633 * @see do_libmondo_global_strings_thing
1634 */
1635void free_libmondo_global_strings(void)
1636{
1637    do_libmondo_global_strings_thing(0);
1638}
1639
1640
1641
1642/**
1643 * Stop @c magicdev if it's running.
1644 * The command used to start it is saved in @p g_magicdev_command.
1645 */
1646void stop_magicdev_if_necessary()
1647{
1648    strcpy(g_magicdev_command,
1649           call_program_and_get_last_line_of_output
1650           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1651    if (g_magicdev_command[0]) {
1652        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1653        paranoid_system("killall magicdev");
1654    }
1655}
1656
1657
1658/**
1659 * Restart magicdev if it was stopped.
1660 */
1661void restart_magicdev_if_necessary()
1662{
1663    char *tmp;
1664
1665    malloc_string(tmp);
1666    if (g_magicdev_command && g_magicdev_command[0]) {
1667        sprintf(tmp, "%s &", g_magicdev_command);
1668        paranoid_system(tmp);
1669    }
1670    paranoid_free(tmp);
1671}
1672
1673/* @} - end of utilityGroup */
Note: See TracBrowser for help on using the repository browser.