source: MondoRescue/branches/3.2/mondo/src/common/libmondo-tools.c @ 3268

Last change on this file since 3268 was 3268, checked in by Bruno Cornec, 7 years ago
  • Fix initialization of g_cd_recovery to avoid having it at TRUE inwillingly
  • Remove code in netfs case now handled in mindi (mr-net-get-config)
  • Property svn:keywords set to Id
File size: 39.0 KB
Line 
1/*
2   $Id: libmondo-tools.c 3268 2014-04-29 18:22:35Z bruno $
3*/
4
5
6/**
7 * @file
8 * Miscellaneous tools that didn't really fit anywhere else.
9 */
10
11#include "my-stuff.h"
12#include "mr_mem.h"
13#include "mondostructures.h"
14#include "lib-common-externs.h"
15#include "libmondo-tools.h"
16#include "libmondo-gui-EXT.h"
17#include "libmondo-files-EXT.h"
18#include "libmondo-fork-EXT.h"
19#include "libmondo-raid-EXT.h"
20#include "libmondo-devices-EXT.h"
21#include <sys/socket.h>
22#include <netdb.h>
23#include <stdlib.h>
24#include <netinet/in.h>
25#include <arpa/inet.h>
26#include <sys/utsname.h>
27
28/*@unused@*/
29//static char cvsid[] = "$Id: libmondo-tools.c 3268 2014-04-29 18:22:35Z bruno $";
30
31extern int g_tape_buffer_size_MB;
32extern bool g_text_mode;
33extern int g_currentY;
34extern int g_current_media_number;
35extern char *MONDO_LOGFILE;
36
37/* Reference to global bkpinfo */
38extern struct s_bkpinfo *bkpinfo;
39
40/**
41 * @addtogroup globalGroup
42 * @{
43 */
44bool g_remount_cdrom_at_end,    ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
45 g_remount_floppy_at_end;       ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
46bool g_cd_recovery = FALSE;             ///< TRUE if we're making an "autonuke" backup.
47double g_kernel_version;
48
49/**
50 * The place where /boot is mounted.
51 */
52char *g_boot_mountpt = NULL;
53
54/**
55 * The location of Mondo's home directory.
56 */
57char *g_mondo_home = NULL;
58
59/**
60 * The serial string (used to differentiate between backups) of the current backup.
61 */
62extern char *g_serial_string;
63
64/**
65 * The location where tmpfs is mounted, or "" if it's not mounted.
66char *g_tmpfs_mountpt = NULL;
67 */
68char *g_magicdev_command = NULL;
69
70/**
71 * The default maximum level to log messages at or below.
72 */
73int g_loglevel = DEFAULT_DEBUG_LEVEL;
74
75/* @} - end of globalGroup */
76
77
78extern pid_t g_buffer_pid;
79extern pid_t g_main_pid;
80
81extern t_bkptype g_backup_media_type;
82
83extern bool am_I_in_disaster_recovery_mode(void);
84
85/*-----------------------------------------------------------*/
86
87
88/**
89 * @addtogroup utilityGroup
90 * @{
91 */
92/**
93 * Assertion handler. Prints a friendly message to the user,
94 * offering to ignore all, dump core, break to debugger,
95 * exit, or ignore. Intended to be used with an assert() macro.
96 *
97 * @param file The file in which the assertion triggered.
98 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
99 * @param line The line number of the assert() statement.
100 * @param exp The expression that failed (as a string).
101 */
102void _mondo_assert_fail(const char *file,
103                        const char *function, int line, const char *exp)
104{
105    static int ignoring_assertions = 0;
106    bool is_valid = TRUE;
107
108    log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
109           function);
110    if (ignoring_assertions) {
111        log_it("Well, the user doesn't care...");
112        return;
113    }
114    if (!g_text_mode)
115        newtSuspend();
116    printf("ASSERTION FAILED: `%s'\n", exp);
117    printf("\tat %s:%d in %s\n\n", file, line, function);
118    printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
119    do {
120        is_valid = TRUE;
121        switch (toupper(getchar())) {
122        case 'A':               // ignore (A)ll
123            ignoring_assertions = 1;
124            break;
125        case 'B':               // a(B)ort
126            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
127            raise(SIGABRT);
128            break;              /* "can't get here" */
129        case 'D':               // (D)ebug, aka asm("int 3")
130#ifdef __IA32__
131            __asm__ __volatile__("int $3"); // break to debugger
132#endif
133            break;
134        case 'E':               // (E)xit
135            fatal_error("Failed assertion -- see above for details");
136            break;              /* "can't get here" */
137        case 'I':               // (I)gnore
138            break;
139            /* These next two work as follows:
140               the `default' catches the user's invalid choice and says so;
141               the '\n' catches the newline on the end and prints the prompt again.
142             */
143        case '\n':
144            printf
145                ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
146            break;
147        default:
148            is_valid = FALSE;
149            printf("Invalid choice.\n");
150            break;
151        }
152    } while (!is_valid);
153
154    if (ignoring_assertions) {
155        log_it("Ignoring ALL assertions from now on.");
156    } else {
157        log_it("Ignoring assertion: %s", exp);
158    }
159
160    getchar();                  // skip \n
161
162    if (!g_text_mode)
163        newtResume();
164}
165
166/**
167 * Clean's up users' KDE desktops.
168 * @bug Details about this function are unknown.
169 */
170void clean_up_KDE_desktop_if_necessary(void)
171{
172    char *tmp = NULL;
173
174    mr_asprintf(tmp, "for i in `find /root /home -maxdepth 2 -type d -name Desktop -maxdepth 2`; do file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } else { print $0;};}' $file.old  > $file ; fi ; done");
175    run_program_and_log_output(tmp, 5);
176    mr_free(tmp);
177}
178
179
180/**
181 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
182 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
183 *
184 * @param home_sz String to store the home directory ("" if it could not be found).
185 * @return 0 for success, nonzero for failure.
186 */
187int find_and_store_mondoarchives_home(char *home_sz)
188{
189    assert(home_sz != NULL);
190    strcpy(home_sz, MONDO_SHARE);
191    return (0);
192}
193
194
195char *get_architecture(void) {
196#ifdef __IA32__
197#   ifdef __X86_64__
198        return ("x86_64");
199#   else
200        return ("i386");
201#   endif
202#endif
203#ifdef __IA64__
204    return ("ia64");
205#endif
206    return ("unknown");
207}
208
209
210char *get_uname_m(void) {
211
212    struct utsname utsn;
213    char *tmp = NULL;
214
215    uname(&utsn);
216    mr_asprintf(tmp, "%s", utsn.machine);
217    return (tmp);
218}
219
220
221
222double get_kernel_version(void)
223{
224    char *p = NULL;
225    char *tmp = NULL;
226    double d;
227#ifdef __FreeBSD__
228    // JOSH - FIXME :)
229    d = 5.2;                    // :-)
230#else
231    mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("uname -r"));
232    p = strchr(tmp, '.');
233    if (p) {
234        p = strchr(++p, '.');
235        if (p) {
236            while (*p) {
237                *p = *(p + 1);
238                p++;
239            }
240        }
241    }
242    d = atof(tmp);
243    mr_free(tmp);
244#endif
245    log_msg(1, "g_kernel_version = %f", d);
246    return (d);
247}
248
249
250/**
251 * Get the current time.
252 * @return number of seconds since the epoch.
253 */
254long get_time()
255{
256    return (long) time((void *) 0);
257}
258
259
260/**
261 * Initialize a RAID volume structure, setting fields to zero. The
262 * actual hard drive is unaffected.
263 *
264 * @param raidrec The RAID volume structure to initialize.
265 * @note This function is system dependent.
266 */
267#ifdef __FreeBSD__
268void initialize_raidrec(struct vinum_volume *raidrec)
269{
270    int i, j;
271    raidrec->volname[0] = '\0';
272    raidrec->plexes = 0;
273    for (i = 0; i < 9; ++i) {
274        raidrec->plex[i].raidlevel = -1;
275        raidrec->plex[i].stripesize = 0;
276        raidrec->plex[i].subdisks = 0;
277        for (j = 0; j < 9; ++j) {
278            strcpy(raidrec->plex[i].sd[j].which_device, "");
279        }
280    }
281}
282#else
283void initialize_raidrec(struct raid_device_record *raidrec)
284{
285    assert(raidrec != NULL);
286    raidrec->raid_device[0] = '\0';
287    raidrec->raid_level = -9;
288    raidrec->persistent_superblock = 1;
289    raidrec->chunk_size = 64;
290    raidrec->parity = -1;
291    raidrec->data_disks.entries = 0;
292    raidrec->spare_disks.entries = 0;
293    raidrec->parity_disks.entries = 0;
294    raidrec->failed_disks.entries = 0;
295    raidrec->additional_vars.entries = 0;
296}
297#endif
298
299
300
301
302/**
303 * Insert modules that Mondo requires.
304 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
305 * @c msdosfs and @c ext2fs for FreeBSD.
306 */
307void insmod_crucial_modules(void)
308{
309#ifdef __FreeBSD__
310    paranoid_system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
311    paranoid_system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
312#else
313    paranoid_system("modprobe -a msdos vfat loop &> /dev/null");
314#endif
315}
316
317/**
318 * Finish configuring the backup information structure. Call this function
319 * to set the parameters that depend on those that can be given on the command
320 * line.
321 *
322 * @param bkpinfo The backup information structure. Fields modified/used:
323 * - Used: @c bkpinfo->backup_data
324 * - Used: @c bkpinfo->backup_media_type
325 * - Used: @c bkpinfo->cdrw_speed
326 * - Used: @c bkpinfo->compression_level
327 * - Used: @c bkpinfo->include_paths
328 * - Used: @c bkpinfo->prefix
329 * - Used: @c bkpinfo->isodir
330 * - Used: @c bkpinfo->manual_cd_tray
331 * - Used: @c bkpinfo->make_cd_use_lilo
332 * - Used: @c bkpinfo->media_device
333 * - Used: @c bkpinfo->netfs_mount
334 * - Used: @c bkpinfo->nonbootable_backup
335 * - Used: @c bkpinfo->scratchdir
336 * - Used: @c bkpinfo->tmpdir
337 * - Used: @c bkpinfo->use_lzo
338 * - Modified: @c bkpinfo->call_before_iso
339 * - Modified: @c bkpinfo->call_make_iso
340 * - Modified: @c bkpinfo->optimal_set_size
341 * - Modified: @c bkpinfo->zip_exe
342 * - Modified: @c bkpinfo->zip_suffix
343 *
344 * @return number of errors, or 0 for success.
345 * @note Also creates directories that are specified in the @c bkpinfo structure but
346 * do not exist.
347 */
348int post_param_configuration()
349{
350    char *extra_cdrom_params = NULL;
351    char *mondo_mkisofs_sz = NULL;
352    char *command = NULL;
353    char *hostname = NULL;
354    char *isofs_cmd = NULL;
355    char *ip_address = NULL;
356    int retval = 0;
357    char *colon;
358    char *cdr_exe = NULL;
359    char *tmp = NULL;
360    char *call_before_iso_user = NULL;
361    char *iso_dev = NULL;
362    char *iso_mnt = NULL;
363    char *iso_tmp = NULL;
364    char *iso_path = NULL;
365    char *cfg_fname = NULL;
366
367    assert(bkpinfo != NULL);
368
369    bkpinfo->optimal_set_size = (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) * 1024;
370
371    log_msg(1, "Post-param");
372    if (bkpinfo->backup_media_type == tape) {
373        if (whine_if_not_found("mt") == 1) {
374            fatal_error("Please install the mt command");
375        }
376        log_msg(1, "Tape");
377        if (bkpinfo->media_device == NULL) {
378            return(1);
379        }
380        mr_asprintf(tmp, "mt -f %s status", bkpinfo->media_device);
381        log_msg(1, "tmp = '%s'", tmp);
382        if (run_program_and_log_output(tmp, 3)) {
383            mr_free(tmp);
384            fatal_error("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.");
385        }
386        mr_free(tmp);
387    }
388    if (bkpinfo->backup_media_type == iso)
389        make_hole_for_dir(bkpinfo->isodir);
390
391    run_program_and_log_output("uname -a", 5);
392    run_program_and_log_output("cat /etc/*-release", 5);
393    run_program_and_log_output("cat /etc/*issue*", 5);
394#ifdef __FreeBSD__
395#else
396    run_program_and_log_output("cat /proc/cpuinfo", 5);
397    run_program_and_log_output
398        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
399         5);
400#endif
401
402    if (bkpinfo->use_lzo) {
403        strcpy(bkpinfo->zip_exe, "lzop");
404        strcpy(bkpinfo->zip_suffix, "lzo");
405    } else if (bkpinfo->use_gzip) {
406        strcpy(bkpinfo->zip_exe, "gzip");
407        strcpy(bkpinfo->zip_suffix, "gz");
408    } else if (bkpinfo->use_lzma) {
409        strcpy(bkpinfo->zip_exe, "lzma");
410        strcpy(bkpinfo->zip_suffix, "lzma");
411    } else if (bkpinfo->compression_level != 0) {
412        strcpy(bkpinfo->zip_exe, "bzip2");
413        strcpy(bkpinfo->zip_suffix, "bz2");
414    } else {
415        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
416    }
417
418// DVD
419
420    if (bkpinfo->backup_media_type == dvd) {
421        if (find_home_of_exe("growisofs")) {
422            mr_asprintf(cdr_exe, "growisofs");
423        }                       // unlikely to be used
424        else {
425            fatal_error("Please install growisofs.");
426        }
427        if (bkpinfo->nonbootable_backup) {
428            mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
429        } else if
430#ifdef __FreeBSD__
431            (TRUE)
432#else
433            (bkpinfo->make_cd_use_lilo)
434#endif
435#ifdef __IA64__
436    {
437        mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
438    }
439#else
440    {
441        mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
442    }
443#endif
444        else {
445            mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
446        }
447        if (bkpinfo->manual_cd_tray) {
448            fatal_error("Manual CD tray + DVD not supported yet.");
449            // -m isn't supported by growisofs, BTW...
450        } else {
451            sprintf(bkpinfo->call_make_iso, "%s %s -Z %s . 2>> _ERR_", mondo_mkisofs_sz, "", bkpinfo->media_device);
452        }
453        mr_free(mondo_mkisofs_sz);
454        if (getenv ("SUDO_COMMAND")) {
455            mr_asprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
456            if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
457                mr_free(command);
458                popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
459                fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
460            }       
461            mr_free(command);
462        }
463        log_msg(2, "call_make_iso (DVD res) is ... %s", bkpinfo->call_make_iso);
464    }                           // end of DVD code
465
466// CD-R or CD-RW
467    if (bkpinfo->backup_media_type == cdrw
468        || bkpinfo->backup_media_type == cdr) {
469        if (!bkpinfo->manual_cd_tray) {
470            mr_asprintf(extra_cdrom_params, "-waiti ");
471        }
472        if (bkpinfo->backup_media_type == cdrw) {
473            mr_asprintf(extra_cdrom_params, "blank=fast ");
474        }
475        if (extra_cdrom_params == NULL) {
476            // If not initialized earlier, do it now
477            mr_asprintf(extra_cdrom_params, " ");
478        }
479        if (find_home_of_exe("cdrecord")) {
480            mr_asprintf(cdr_exe, "cdrecord");
481        } else if (find_home_of_exe("dvdrecord")) {
482            mr_asprintf(cdr_exe, "dvdrecord");
483        } else {
484            fatal_error("Please install either cdrecord or dvdrecord.");
485        }
486        if (find_home_of_exe("genisoimage")) {
487            mr_asprintf(isofs_cmd, "%s", MONDO_GENISOIMAGE_CMD);
488        } else {
489            mr_asprintf(isofs_cmd, "%s", MONDO_MKISOFS_CMD);
490        }
491        if (bkpinfo->nonbootable_backup) {
492            mr_asprintf(mondo_mkisofs_sz, "%s%s", isofs_cmd, MONDO_MKISOFS);
493        } else if
494#ifdef __FreeBSD__
495            (TRUE)
496#else
497            (bkpinfo->make_cd_use_lilo)
498#endif
499#ifdef __IA64__
500    {
501        mr_asprintf(mondo_mkisofs_sz, "%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_ELILO);
502    }
503#else
504    {
505        mr_asprintf(mondo_mkisofs_sz, "%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_LILO);
506    }
507#endif
508        else
509        {
510            mr_asprintf(mondo_mkisofs_sz, "%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_SYSLINUX);
511        }
512        mr_free(isofs_cmd);
513
514        if (bkpinfo->manual_cd_tray) {
515            if (bkpinfo->call_before_iso[0] == '\0') {
516                sprintf(bkpinfo->call_before_iso, "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_", mondo_mkisofs_sz, bkpinfo->tmpdir);
517            } else {
518                mr_asprintf(call_before_iso_user, "%s", bkpinfo->call_before_iso);
519                sprintf(bkpinfo->call_before_iso, "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )", mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
520                mr_free(call_before_iso_user);
521            }
522            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
523            sprintf(bkpinfo->call_make_iso, "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS, cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject", extra_cdrom_params, bkpinfo->media_device, bkpinfo->cdrw_speed, bkpinfo->tmpdir);
524        } else {
525            sprintf(bkpinfo->call_make_iso, "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -", mondo_mkisofs_sz, cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject", extra_cdrom_params, bkpinfo->media_device, bkpinfo->cdrw_speed);
526        }
527        mr_free(cdr_exe);
528        mr_free(mondo_mkisofs_sz);
529        mr_free(extra_cdrom_params);
530    }                           // end of CD code
531
532    if (bkpinfo->backup_media_type == iso) {
533
534/* Patch by Conor Daly <conor.daly@met.ie>
535 * 23-june-2004
536 * Break up isodir into iso_mnt and iso_path
537 * These will be used along with iso-dev at restore time
538 * to locate the ISOs where ever they're mounted
539 */
540
541        log_it("isodir = %s", bkpinfo->isodir);
542        mr_asprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
543        log_it("command = %s", command);
544        mr_asprintf(iso_dev, "%s", call_program_and_get_last_line_of_output(command));
545        log_it("res of it = %s", iso_dev);
546        mr_asprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
547        write_one_liner_data_file(tmp, iso_dev);
548        mr_free(tmp);
549        mr_free(command);
550
551        mr_asprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
552        mr_free(iso_dev);
553
554        log_it("command = %s", command);
555        mr_asprintf(iso_mnt, "%s", call_program_and_get_last_line_of_output(command));
556        log_it("res of it = %s", iso_mnt);
557        mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
558        write_one_liner_data_file(tmp, iso_mnt);
559        mr_free(tmp);
560        mr_free(command);
561
562        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
563        mr_asprintf(iso_tmp, "%s", bkpinfo->isodir);
564        if (strlen(iso_tmp) < strlen(iso_mnt)) {
565            mr_asprintf(iso_path, "%s", "");
566        } else {
567            // If iso_mnt is only / then iso_path is the full dir
568            // (the formula bellow doesn't work in this case)
569            if (strcmp(iso_mnt, "/") == 0) {
570                mr_asprintf(iso_path, "%s", iso_tmp);
571            // else it's a part of iso_tmp
572            } else {
573                mr_asprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
574            }
575        }
576        mr_free(iso_mnt);
577        mr_free(iso_tmp);
578
579        mr_asprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
580        write_one_liner_data_file(tmp, iso_path);
581        mr_free(tmp);
582
583        log_it("isodir: %s", iso_path);
584        mr_free(iso_path);
585
586        mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
587        write_one_liner_data_file(tmp, bkpinfo->prefix);
588        mr_free(tmp);
589
590        log_it("iso-prefix: %s",  bkpinfo->prefix);
591
592/* End patch */
593    }                           // end of iso code
594
595    if (bkpinfo->backup_media_type == netfs) {
596        mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
597        write_one_liner_data_file(tmp, bkpinfo->prefix);
598        mr_free(tmp);
599
600        if (bkpinfo->netfs_mount) {
601            mr_asprintf(tmp, "%s/NETFS-SERVER-MOUNT", bkpinfo->tmpdir);
602            write_one_liner_data_file(tmp, bkpinfo->netfs_mount);
603            mr_free(tmp);
604        } else {
605            log_it("netfs_mount is NULL");
606            retval++;
607        }
608    }
609
610    log_it("Finished processing incoming params");
611    if (retval) {
612        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
613    }
614    if (bkpinfo->include_paths == NULL) {
615        mr_asprintf(bkpinfo->include_paths, "/");
616    }
617    g_backup_media_type = bkpinfo->backup_media_type;
618    return (retval);
619}
620
621
622
623/**
624 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
625 * Seeds the random-number generator, loads important modules, checks the sanity
626 * of the user's Linux distribution, and deletes logfile.
627 * @param bkpinfo The backup information structure. Will be initialized.
628 * @return number of errors (0 for success)
629 */
630int pre_param_configuration()
631{
632    int res = 0;
633    char *tmp = NULL;
634
635    make_hole_for_dir(MNT_CDROM);
636    assert(bkpinfo != NULL);
637    srandom((unsigned long) (time(NULL)));
638    insmod_crucial_modules();
639    if (bkpinfo->disaster_recovery) {
640        if (!does_nonMS_partition_exist()) {
641            fatal_error("I am in disaster recovery mode\nPlease don't run mondoarchive.");
642        }
643    }
644
645    mr_asprintf(tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
646    run_program_and_log_output(tmp, FALSE);
647    paranoid_free(tmp);
648    if (find_and_store_mondoarchives_home(g_mondo_home)) {
649        fprintf(stderr, "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");
650        res++;
651        return (res);
652    }
653    res += some_basic_system_sanity_checks();
654    if (res) {
655        log_it("Your distribution did not pass Mondo's sanity test.");
656    }
657    g_current_media_number = 1;
658    bkpinfo->postnuke_tarball[0] = '\0';
659    return (res);
660}
661
662/*  From busybox under GPLv2 */
663#ifndef HAVE_MKDTEMP
664/* This is now actually part of POSIX.1, but was only added in 2008 */
665char* mkdtemp(char *template)
666{
667    if (mktemp(template) == NULL || mkdir(template, 0700) != 0)
668        return NULL;
669    return template;
670}
671#endif
672
673void setup_tmpdir(char *path) {
674
675    char *tmp = NULL;
676    char *p = NULL;
677
678    if (bkpinfo->tmpdir[0] != '\0') {
679        /* purging a potential old tmpdir */
680        if (chdir("/tmp")) {
681            // FIXME
682        }
683        if (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL) {
684            log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
685            mr_asprintf(tmp,"rm -Rf %s",bkpinfo->tmpdir);
686        } else {
687            log_it("Purging old tmpdir %s/mondo.tmp.*", bkpinfo->tmpdir);
688            mr_asprintf(tmp,"rm -Rf %s/mondo.tmp.*",bkpinfo->tmpdir);
689        }
690        paranoid_system(tmp);
691        mr_free(tmp);
692    }
693
694    /* Always take in account arg first, then env, then default */
695    if (path != NULL) {
696        mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", path);
697    } else if (getenv("TMPDIR")) {
698        mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
699    } else if (getenv("MRTMP")) {
700        mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("MRTMP"));
701    } else {
702        mr_asprintf(tmp, "/tmp/mondo.tmp.XXXXXX");
703    }
704    p = mkdtemp(tmp);
705    if (p == NULL) {
706        printf("Failed to create global tmp directory %s for Mondo.",tmp);
707        mr_free(tmp);
708        finish(-1);
709    }
710    strcpy(bkpinfo->tmpdir,p);
711    mr_free(tmp);
712
713    log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
714
715    mr_asprintf(tmp, "mkdir -p %s/tmpfs", bkpinfo->tmpdir);
716    paranoid_system(tmp);
717    mr_free(tmp);
718}
719
720void setup_scratchdir(char *path) {
721
722    char *tmp = NULL;
723    char *p = NULL;
724
725    if (bkpinfo->scratchdir != NULL) {
726        /* purging a potential old scratchdir */
727        if (chdir("/tmp")) {
728            // FIXME
729        }
730        if (strstr(bkpinfo->scratchdir,"mondo.scratch.") != NULL) {
731            log_it("Purging old scratchdir %s", bkpinfo->scratchdir);
732            mr_asprintf(tmp,"rm -Rf %s",bkpinfo->scratchdir);
733        } else {
734            log_it("Purging old scratchdir %s/mondo.scratch.*", bkpinfo->scratchdir);
735            mr_asprintf(tmp,"rm -Rf %s/mondo.scratch.*",bkpinfo->scratchdir);
736        }
737        paranoid_system(tmp);
738        mr_free(tmp);
739    }
740
741    /* Always take in account arg first, then env, then default */
742    if (path != NULL) {
743        mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", path);
744    } else if (getenv("MRSCRATCH")) {
745        mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", getenv("MRSCRATCH"));
746    } else {
747        mr_asprintf(tmp, "/tmp/mondo.scratch.XXXXXX");
748    }
749    p = mkdtemp(tmp);
750    if (p == NULL) {
751        log_it("Failed to create global scratch directory %s for Mondo.",tmp);
752        finish(-1);
753    }
754    strcpy(bkpinfo->scratchdir,p);
755    log_it("bkpinfo->scratchdir is being set to %s", bkpinfo->scratchdir);
756    paranoid_free(tmp);
757
758    mr_asprintf(tmp, "mkdir -p %s", bkpinfo->scratchdir);
759    paranoid_system(tmp);
760    mr_free(tmp);
761}
762
763
764/**
765 * Reset all fields of the backup information structure to a sensible default.
766 * @param bkpinfo The @c bkpinfo to reset.
767 */
768void reset_bkpinfo()
769{
770    assert(bkpinfo != NULL);
771    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
772
773    bkpinfo->media_device[0] = '\0';
774    bkpinfo->media_size = -1;
775    bkpinfo->boot_loader = '\0';
776    bkpinfo->boot_device[0] = '\0';
777    bkpinfo->zip_exe[0] = '\0';
778    bkpinfo->zip_suffix[0] = '\0';
779    bkpinfo->image_devs[0] = '\0';
780    bkpinfo->compression_level = 3;
781    bkpinfo->use_lzo = FALSE;
782    bkpinfo->use_gzip = FALSE;
783    bkpinfo->use_lzma = FALSE;
784    bkpinfo->verify_data = FALSE;
785    bkpinfo->backup_data = FALSE;
786    bkpinfo->restore_data = FALSE;
787    bkpinfo->use_star = FALSE;
788    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
789   
790    /*  We need tmpdir as early as possible for further function calls */
791    bkpinfo->tmpdir[0] = '\0';          // Really setup after
792    bkpinfo->scratchdir[0] = '\0';          // Really setup after
793    setup_tmpdir(NULL);
794    setup_scratchdir(NULL);
795
796    bkpinfo->disaster_recovery = am_I_in_disaster_recovery_mode();
797    if (bkpinfo->disaster_recovery) {
798        strcpy(bkpinfo->isodir, "/");
799    } else {
800        strcpy(bkpinfo->isodir, MONDO_CACHE);
801    }
802    strcpy(bkpinfo->prefix, STD_PREFIX);
803    bkpinfo->optimal_set_size = 0;
804    bkpinfo->backup_media_type = none;
805    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
806    bkpinfo->exclude_paths = NULL;
807    bkpinfo->include_paths = NULL;
808    bkpinfo->exclude_devs = NULL;
809    bkpinfo->restore_path[0] = '\0';
810    bkpinfo->call_before_iso[0] = '\0';
811    bkpinfo->call_make_iso[0] = '\0';
812    bkpinfo->call_burn_iso[0] = '\0';
813    bkpinfo->call_after_iso[0] = '\0';
814    bkpinfo->kernel_path[0] = '\0';
815    bkpinfo->netfs_mount = NULL;
816    bkpinfo->netfs_proto = NULL;
817    bkpinfo->netfs_user = NULL;
818    bkpinfo->netfs_remote_dir = NULL;
819    bkpinfo->postnuke_tarball[0] = '\0';
820    bkpinfo->subdir = NULL;
821    bkpinfo->wipe_media_first = FALSE;
822    bkpinfo->differential = 0;
823    bkpinfo->please_dont_eject = FALSE;
824    bkpinfo->cdrw_speed = 0;
825    bkpinfo->manual_cd_tray = FALSE;
826    bkpinfo->nonbootable_backup = FALSE;
827    bkpinfo->make_cd_use_lilo = FALSE;
828    bkpinfo->use_obdr = FALSE;
829    bkpinfo->restore_mode = interactive;
830}
831
832
833/**
834 * Get the remaining free space (in MB) on @p partition.
835 * @param partition The partition to check free space on (either a device or a mountpoint).
836 * @return The free space on @p partition, in MB.
837 */
838long free_space_on_given_partition(char *partition)
839{
840    char *out_sz = NULL;
841    char *command = NULL;
842    long res;
843
844    assert_string_is_neither_NULL_nor_zerolength(partition);
845
846    mr_asprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
847    if (system(command)) {
848        mr_free(command);
849        return (-1);
850    }                           // partition does not exist
851    mr_free(command);
852
853    mr_asprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4", partition);
854    mr_asprintf(out_sz, "%s", call_program_and_get_last_line_of_output(command));
855    mr_free(command);
856
857    if (strlen(out_sz) == 0) {
858        mr_free(out_sz);
859        return (-1);
860    }                           // error within df, probably
861    res = atol(out_sz);
862    mr_free(out_sz);
863    return (res);
864}
865
866
867
868/**
869 * Check the user's system for sanity. Checks performed:
870 * - make sure user has enough RAM (32mb required, 64mb recommended)
871 * - make sure user has enough free space in @c /
872 * - check kernel for ramdisk support
873 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
874 * - make sure CD-ROM is unmounted
875 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
876 *
877 * @return number of problems with the user's setup (0 for success)
878 */
879int some_basic_system_sanity_checks()
880{
881
882    /*@ buffers ************ */
883    char *tmp = NULL;
884
885    /*@ int's *************** */
886    int retval = 0;
887
888    mvaddstr_and_log_it(g_currentY, 0, "Checking sanity of your Linux distribution");
889#ifndef __FreeBSD__
890    if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
891        && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
892        log_it("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
893        run_program_and_log_output("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
894    }
895    mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
896    if (atol(tmp) < 35000) {
897        retval++;
898        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
899    }
900    if (atol(tmp) < 66000) {
901        log_to_screen("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
902    }
903    mr_free(tmp);
904#endif
905
906    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
907        retval++;
908        log_to_screen
909            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
910        fatal_error
911            ("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. :)");
912    }
913#ifndef __FreeBSD__
914    if (run_program_and_log_output
915        ("grep ramdisk /proc/devices", FALSE)) {
916        /* Some SuSE have ramdisk as modules, so insert it first, then test again */
917        run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
918        if (run_program_and_log_output("grep ramdisk /proc/devices", FALSE)) {
919            if (!ask_me_yes_or_no("Your kernel has no ramdisk support. That's mind-numbingly stupid but I'll allow it if you're planning to use another kernel. Are you?")) {
920                //          retval++;
921                log_to_screen("It looks as if your kernel lacks ramdisk and initrd support.");
922                log_to_screen("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
923            }
924        }
925    }
926#endif
927    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
928    if (system("which genisoimage > /dev/null 2> /dev/null")) {
929        retval += whine_if_not_found("mkisofs");
930    }
931    if (system("which wodim > /dev/null 2> /dev/null")) {
932        retval += whine_if_not_found("cdrecord");
933    }
934    retval += whine_if_not_found("bzip2");
935    retval += whine_if_not_found("gzip");
936    retval += whine_if_not_found("awk");
937    retval += whine_if_not_found("md5sum");
938    retval += whine_if_not_found("strings");
939    retval += whine_if_not_found("mindi");
940    retval += whine_if_not_found("buffer");
941
942    // abort if Windows partition but no ms-sys and parted
943    if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
944        log_to_screen("I think you have a Windows 9x partition.");
945        retval += whine_if_not_found("parted");
946    }
947
948    if (!find_home_of_exe("cmp")) {
949        whine_if_not_found("cmp");
950    }
951    run_program_and_log_output("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
952    mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("mount | grep -E \"cdr(om|w)\""));
953    if (strcmp("", tmp)) {
954        if (strstr(tmp, "autofs")) {
955            log_to_screen("Your CD-ROM is mounted via autofs. I therefore cannot tell");
956            log_to_screen("if a CD actually is inserted. If a CD is inserted, please");
957            log_to_screen("eject it. Thank you.");
958            log_it("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
959        } else
960            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
961            retval++;
962            mr_free(tmp);
963            fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
964        }
965    }
966    mr_free(tmp);
967
968    run_program_and_log_output("cat /etc/fstab", 5);
969#ifdef __FreeBSD__
970    run_program_and_log_output("vinum printconfig", 5);
971#else
972    run_program_and_log_output("cat /etc/raidtab", 5);
973#endif
974
975    if (run_program_and_log_output("mindi -V", 1)) {
976        log_to_screen("Could not ascertain mindi's version number.");
977        log_to_screen("You have not installed Mondo and/or Mindi properly.");
978        log_to_screen("Please uninstall and reinstall them both.");
979        fatal_error("Please reinstall Mondo and Mindi.");
980    }
981    mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
982    if (run_program_and_log_output(tmp, 5)) {
983        log_to_screen("%s failed for some reason.", tmp);
984        mr_free(tmp);
985        log_to_screen("Please run that command by hand and examine /var/log/mindi.log");
986        log_to_screen("for more information. Perhaps your /etc/fstab file is insane.");
987        log_to_screen("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
988        retval++;
989    }
990    mr_free(tmp);
991
992    if (!run_program_and_log_output("parted2fdisk -l 2>/dev/null | grep -i raid", 1) && !does_file_exist("/etc/raidtab")) {
993        log_to_screen("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
994        create_raidtab_from_mdstat(MDSTAT_FILE,"/etc/raidtab");
995    }
996
997    if (retval) {
998        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
999    } else {
1000        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1001    }
1002    return (retval);
1003}
1004
1005/**
1006 * Retrieve the line containing @p label from the config file.
1007 * @param config_file The file to read from, usually @c /tmp/mondorestore.cfg.
1008 * @param label What to read from the file.
1009 * @param value Where to put it.
1010 * @return 0 for success, 1 for failure.
1011 */
1012int read_cfg_var(char *config_file, char *label, char *value)
1013{
1014    /*@ buffer ****************************************************** */
1015    char *command = NULL;
1016
1017    /*@ end vars *************************************************** */
1018
1019    assert_string_is_neither_NULL_nor_zerolength(config_file);
1020    assert_string_is_neither_NULL_nor_zerolength(label);
1021    if (!does_file_exist(config_file)) {
1022        log_to_screen("(read_cfg_var) Cannot find %s config file", config_file);
1023        value[0] = '\0';
1024        return (1);
1025    } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1026        log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1027        return (0);
1028    } else {
1029        mr_asprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1030        strcpy(value, call_program_and_get_last_line_of_output(command));
1031        mr_free(command);
1032
1033        log_msg(4, "Configuration item %s is %s", label, value);
1034        if (strlen(value) == 0) {
1035            return (1);
1036        } else {
1037            return (0);
1038        }
1039    }
1040}
1041
1042
1043
1044/**
1045 * Remount @c supermount if it was unmounted earlier.
1046 */
1047void remount_supermounts_if_necessary()
1048{
1049    if (g_remount_cdrom_at_end) {
1050        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1051    }
1052    if (g_remount_floppy_at_end) {
1053        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1054    }
1055}
1056
1057/**
1058 * Unmount @c supermount if it's mounted.
1059 */
1060void unmount_supermounts_if_necessary()
1061{
1062    if (run_program_and_log_output
1063        ("mount | grep cdrom | grep super", FALSE) == 0) {
1064        g_remount_cdrom_at_end = TRUE;
1065        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1066    }
1067    if (run_program_and_log_output
1068        ("mount | grep floppy | grep super", FALSE) == 0) {
1069        g_remount_floppy_at_end = TRUE;
1070        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1071    }
1072}
1073
1074/**
1075 * Whether we had to stop autofs (if so, restart it at end).
1076 */
1077bool g_autofs_stopped = FALSE;
1078
1079/**
1080 * Path to the autofs initscript ("" if none exists).
1081 */
1082char g_autofs_exe[MAX_STR_LEN];
1083
1084/**
1085 * Autofs initscript in Xandros Linux distribution.
1086 */
1087#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1088
1089/**
1090 * Autofs initscript in most Linux distributions.
1091 */
1092#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1093
1094/**
1095 * If autofs is mounted, stop it (restart at end).
1096 */
1097void stop_autofs_if_necessary()
1098{
1099    char *tmp = NULL;
1100
1101    g_autofs_exe[0] = '\0';
1102    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1103        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1104    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1105        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1106    }
1107
1108    if (!g_autofs_exe[0]) {
1109        log_msg(3, "No autofs detected.");
1110    } else {
1111        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1112        // FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1113        mr_asprintf(tmp, "%s stop", g_autofs_exe);
1114        if (run_program_and_log_output(tmp, 2)) {
1115            log_it("Failed to stop autofs - I assume it wasn't running");
1116        } else {
1117            g_autofs_stopped = TRUE;
1118            log_it("Stopped autofs OK");
1119        }
1120        mr_free(tmp);
1121    }
1122}
1123
1124/**
1125 * If autofs was stopped earlier, restart it.
1126 */
1127void restart_autofs_if_necessary()
1128{
1129    char *tmp = NULL;
1130
1131    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1132        log_msg(3, "No autofs detected.");
1133        return;
1134    }
1135    mr_asprintf(tmp, "%s start", g_autofs_exe);
1136    if (run_program_and_log_output(tmp, 2)) {
1137        log_it("Failed to start autofs");
1138    } else {
1139        g_autofs_stopped = FALSE;
1140        log_it("Started autofs OK");
1141    }
1142    mr_free(tmp);
1143}
1144
1145
1146/**
1147 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1148 */
1149void mount_boot_if_necessary() {
1150    char *tmp = NULL;
1151    char *command = NULL;
1152
1153    log_msg(1, "Started sub");
1154    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1155    g_boot_mountpt[0] = '\0';
1156    log_msg(4, "Done. Great. Seeting command to something");
1157    mr_asprintf(command, "%s", "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[   ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1158    log_msg(4, "Cool. Command = '%s'", command);
1159    mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
1160    mr_free(command);
1161
1162    log_msg(4, "tmp = '%s'", tmp);
1163    log_it("/boot is at %s according to /etc/fstab", tmp);
1164    mr_asprintf(command, "mount | grep -Ew '/boot'");
1165    mr_free(tmp);
1166
1167    mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
1168    mr_free(command);
1169
1170    if (!strcmp(tmp,"")) {
1171        if ((strstr(tmp, "LABEL=") != NULL) || (strstr(tmp,"UUID=") != NULL)) {
1172            if (!run_program_and_log_output("mount /boot", 5)) {
1173                strcpy(g_boot_mountpt, "/boot");
1174                log_msg(1, "Mounted /boot");
1175            } else {
1176                log_it("...ignored cos it's a label or uuid :-)");
1177            }
1178        } else {
1179            mr_asprintf(command, "mount | grep -E '^%s'", tmp);
1180            log_msg(3, "command = %s", command);
1181            if (run_program_and_log_output(command, 5)) {
1182                strcpy(g_boot_mountpt, tmp);
1183                mr_free(tmp);
1184                log_it("%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1185
1186                mr_asprintf(tmp, "mount %s", g_boot_mountpt);
1187                if (run_program_and_log_output(tmp, 5)) {
1188                    g_boot_mountpt[0] = '\0';
1189                    log_msg(1, "Plan B");
1190                    if (!run_program_and_log_output("mount /boot", 5)) {
1191                        strcpy(g_boot_mountpt, "/boot");
1192                        log_msg(1, "Plan B worked");
1193                    } else {
1194                        log_msg(1,
1195                            "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1196                    }
1197                }
1198            }
1199            mr_free(command);
1200        }
1201    }
1202    mr_free(tmp);
1203    log_msg(1, "Ended sub");
1204}
1205
1206
1207/**
1208 * If we mounted /boot earlier, unmount it.
1209 */
1210void unmount_boot_if_necessary()
1211{
1212    char *tmp = NULL;
1213
1214    log_msg(3, "starting");
1215    if (g_boot_mountpt[0]) {
1216        mr_asprintf(tmp, "umount %s", g_boot_mountpt);
1217        if (run_program_and_log_output(tmp, 5)) {
1218            log_it("WARNING - unable to unmount /boot");
1219        }
1220        mr_free(tmp);
1221    }
1222    log_msg(3, "leaving");
1223}
1224
1225
1226
1227/**
1228 * Write a line to a configuration file. Writes a line of the form,
1229 * @c label @c value.
1230 * @param config_file The file to write to. Usually @c mondorestore.cfg.
1231 * @param label What to call this bit of data you're writing.
1232 * @param value The bit of data you're writing.
1233 * @return 0 for success, 1 for failure.
1234 */
1235int write_cfg_var(char *config_file, char *label, char *value)
1236{
1237    /*@ buffers ***************************************************** */
1238    char *command = NULL;
1239    char *tempfile = NULL;
1240
1241
1242    /*@ end vars *************************************************** */
1243    assert_string_is_neither_NULL_nor_zerolength(config_file);
1244    assert_string_is_neither_NULL_nor_zerolength(label);
1245    assert(value != NULL);
1246    if (!does_file_exist(config_file)) {
1247        log_to_screen("(write_cfg_file) Cannot find %s config file", config_file);
1248        return (1);
1249    }
1250    mr_asprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1251    if (does_file_exist(config_file)) {
1252        mr_asprintf(command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1253        paranoid_system(command);
1254        mr_free(command);
1255    }
1256    mr_asprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1257    paranoid_system(command);
1258    mr_free(command);
1259
1260    mr_asprintf(command, "mv -f %s %s", tempfile, config_file);
1261    paranoid_system(command);
1262    mr_free(command);
1263    unlink(tempfile);
1264    mr_free(tempfile);
1265    return (0);
1266}
1267
1268
1269/**
1270 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1271 * information to the logfile.
1272 */
1273void standard_log_debug_msg(int debug_level, const char *szFile, const char *szFunction, int nLine, const char *fmt, ...) {
1274
1275    va_list args;
1276    static int depth = 0;
1277    FILE *fout;
1278
1279    if (depth > 5) {
1280        depth--;
1281        return;
1282    }
1283    depth++;
1284
1285    if (debug_level <= g_loglevel) {
1286        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1287            return;
1288        }
1289
1290        // add tabs to distinguish log levels
1291        if (debug_level > 0) {
1292            fprintf(fout, "DBG%d: ", debug_level);
1293            if (getpid() == g_main_pid)
1294                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1295            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1296                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1297            else
1298                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1299        } else {
1300            fprintf(fout, "INFO: ");
1301        }
1302        va_start(args, fmt);
1303        vfprintf(fout, fmt, args);
1304        va_end(args);
1305
1306        fprintf(fout, "\n");
1307        paranoid_fclose(fout);
1308    }
1309    depth--;
1310}
1311
1312/**
1313 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1314 */
1315void (*log_debug_msg) (int, const char *, const char *, int, const char *, ...) = standard_log_debug_msg;
1316
1317
1318/**
1319 * Allocate or free important globals, depending on @p mal.
1320 * @param mal If TRUE, malloc; if FALSE, free.
1321 */
1322void do_libmondo_global_strings_thing(int mal)
1323{
1324    if (mal) {
1325        malloc_string(g_boot_mountpt);
1326        malloc_string(g_mondo_home);
1327        malloc_string(g_serial_string);
1328        malloc_string(g_magicdev_command);
1329    } else {
1330        paranoid_free(g_boot_mountpt);
1331        paranoid_free(g_mondo_home);
1332        paranoid_free(g_magicdev_command);
1333
1334        mr_free(g_serial_string);
1335    }
1336}
1337
1338/**
1339 * Allocate important globals.
1340 * @see do_libmondo_global_strings_thing
1341 */
1342void malloc_libmondo_global_strings(void)
1343{
1344    do_libmondo_global_strings_thing(1);
1345}
1346
1347/**
1348 * Free important globals.
1349 * @see do_libmondo_global_strings_thing
1350 */
1351void free_libmondo_global_strings(void)
1352{
1353    do_libmondo_global_strings_thing(0);
1354}
1355
1356
1357
1358/**
1359 * Stop @c magicdev if it's running.
1360 * The command used to start it is saved in @p g_magicdev_command.
1361 */
1362void stop_magicdev_if_necessary()
1363{
1364    strcpy(g_magicdev_command, call_program_and_get_last_line_of_output("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1365    if (g_magicdev_command[0]) {
1366        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1367        paranoid_system("killall magicdev");
1368    }
1369}
1370
1371
1372/**
1373 * Restart magicdev if it was stopped.
1374 */
1375void restart_magicdev_if_necessary()
1376{
1377    char *tmp = NULL;
1378
1379    if (g_magicdev_command && g_magicdev_command[0]) {
1380        mr_asprintf(tmp, "%s &", g_magicdev_command);
1381        paranoid_system(tmp);
1382        mr_free(tmp);
1383    }
1384}
1385
1386/* @} - end of utilityGroup */
Note: See TracBrowser for help on using the repository browser.