source: MondoRescue/branches/3.2/mondo/src/common/libmondo-tools.c @ 3514

Last change on this file since 3514 was 3514, checked in by Bruno Cornec, 4 years ago
  • Fixes xorriso usage and options differences wrt genisoimage
  • Improve temporary file removal, by adding star file to the list, and
  • Try to fix #784 by not comparing result of mkstmp to NULL
  • Property svn:keywords set to Id
File size: 40.3 KB
Line 
1/*
2   $Id: libmondo-tools.c 3514 2016-02-17 01:22:11Z 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 "mr_sys.h"
14#include "mondostructures.h"
15#include "lib-common-externs.h"
16#include "libmondo-tools.h"
17#include "libmondo-gui-EXT.h"
18#include "libmondo-files-EXT.h"
19#include "libmondo-fork-EXT.h"
20#include "libmondo-raid-EXT.h"
21#include "libmondo-devices-EXT.h"
22#include <sys/socket.h>
23#include <netdb.h>
24#include <stdlib.h>
25#include <netinet/in.h>
26#include <arpa/inet.h>
27#include <sys/utsname.h>
28
29/*@unused@*/
30//static char cvsid[] = "$Id: libmondo-tools.c 3514 2016-02-17 01:22:11Z bruno $";
31
32extern int g_tape_buffer_size_MB;
33extern bool g_text_mode;
34extern int g_currentY;
35extern int g_current_media_number;
36extern char *MONDO_LOGFILE;
37
38/* Reference to global bkpinfo */
39extern struct s_bkpinfo *bkpinfo;
40
41/**
42 * @addtogroup globalGroup
43 * @{
44 */
45bool g_remount_cdrom_at_end,    ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
46 g_remount_floppy_at_end;       ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
47bool g_cd_recovery = FALSE;             ///< TRUE if we're making an "autonuke" backup.
48double g_kernel_version;
49
50/**
51 * The place where /boot is mounted.
52 */
53char *g_boot_mountpt = NULL;
54
55/**
56 * The location of Mondo's home directory.
57 */
58char *g_mondo_home = NULL;
59
60/**
61 * The serial string (used to differentiate between backups) of the current backup.
62 */
63extern char *g_serial_string;
64
65/**
66 * The location where tmpfs is mounted, or "" if it's not mounted.
67char *g_tmpfs_mountpt = NULL;
68 */
69char *g_magicdev_command = NULL;
70
71/**
72 * The default maximum level to log messages at or below.
73 */
74int g_loglevel = DEFAULT_DEBUG_LEVEL;
75
76/* @} - end of globalGroup */
77
78
79extern pid_t g_buffer_pid;
80extern pid_t g_main_pid;
81
82extern t_bkptype g_backup_media_type;
83
84extern bool am_I_in_disaster_recovery_mode(void);
85
86/*-----------------------------------------------------------*/
87
88
89/**
90 * @addtogroup utilityGroup
91 * @{
92 */
93/**
94 * Assertion handler. Prints a friendly message to the user,
95 * offering to ignore all, dump core, break to debugger,
96 * exit, or ignore. Intended to be used with an assert() macro.
97 *
98 * @param file The file in which the assertion triggered.
99 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
100 * @param line The line number of the assert() statement.
101 * @param exp The expression that failed (as a string).
102 */
103void _mondo_assert_fail(const char *file,
104                        const char *function, int line, const char *exp)
105{
106    static int ignoring_assertions = 0;
107    bool is_valid = TRUE;
108
109    log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
110           function);
111    if (ignoring_assertions) {
112        log_it("Well, the user doesn't care...");
113        return;
114    }
115    if (!g_text_mode)
116        newtSuspend();
117    printf("ASSERTION FAILED: `%s'\n", exp);
118    printf("\tat %s:%d in %s\n\n", file, line, function);
119    printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
120    do {
121        is_valid = TRUE;
122        switch (toupper(getchar())) {
123        case 'A':               // ignore (A)ll
124            ignoring_assertions = 1;
125            break;
126        case 'B':               // a(B)ort
127            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
128            raise(SIGABRT);
129            break;              /* "can't get here" */
130        case 'D':               // (D)ebug, aka asm("int 3")
131#ifdef __IA32__
132            __asm__ __volatile__("int $3"); // break to debugger
133#endif
134            break;
135        case 'E':               // (E)xit
136            fatal_error("Failed assertion -- see above for details");
137            break;              /* "can't get here" */
138        case 'I':               // (I)gnore
139            break;
140            /* These next two work as follows:
141               the `default' catches the user's invalid choice and says so;
142               the '\n' catches the newline on the end and prints the prompt again.
143             */
144        case '\n':
145            printf
146                ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
147            break;
148        default:
149            is_valid = FALSE;
150            printf("Invalid choice.\n");
151            break;
152        }
153    } while (!is_valid);
154
155    if (ignoring_assertions) {
156        log_it("Ignoring ALL assertions from now on.");
157    } else {
158        log_it("Ignoring assertion: %s", exp);
159    }
160
161    getchar();                  // skip \n
162
163    if (!g_text_mode)
164        newtResume();
165}
166
167/**
168 * Clean's up users' KDE desktops.
169 * @bug Details about this function are unknown.
170 */
171void clean_up_KDE_desktop_if_necessary(void)
172{
173    char *tmp = NULL;
174
175    mr_asprintf(tmp, "for i in `find /root /home -maxdepth 2 -type d -name Desktop -maxdepth 2`; do file=$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");
176    run_program_and_log_output(tmp, 5);
177    mr_free(tmp);
178}
179
180
181/**
182 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
183 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
184 *
185 * @param home_sz String to store the home directory ("" if it could not be found).
186 * @return 0 for success, nonzero for failure.
187 */
188int find_and_store_mondoarchives_home(char *home_sz)
189{
190    assert(home_sz != NULL);
191    strcpy(home_sz, MONDO_SHARE);
192    return (0);
193}
194
195
196char *get_architecture(void) {
197#ifdef __IA32__
198#   ifdef __X86_64__
199        return ("x86_64");
200#   else
201        return ("i386");
202#   endif
203#endif
204#ifdef __IA64__
205    return ("ia64");
206#endif
207    return ("unknown");
208}
209
210
211char *get_uname_m(void) {
212
213    struct utsname utsn;
214    char *tmp = NULL;
215
216    uname(&utsn);
217    mr_asprintf(tmp, "%s", utsn.machine);
218    return (tmp);
219}
220
221
222
223double get_kernel_version(void)
224{
225    char *p = NULL;
226    char *tmp = NULL;
227    double d;
228#ifdef __FreeBSD__
229    // JOSH - FIXME :)
230    d = 5.2;                    // :-)
231#else
232    mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("uname -r"));
233    p = strchr(tmp, '.');
234    if (p) {
235        p = strchr(++p, '.');
236        if (p) {
237            while (*p) {
238                *p = *(p + 1);
239                p++;
240            }
241        }
242    }
243    d = atof(tmp);
244    mr_free(tmp);
245#endif
246    log_msg(1, "g_kernel_version = %f", d);
247    return (d);
248}
249
250
251/**
252 * Get the current time.
253 * @return number of seconds since the epoch.
254 */
255long get_time()
256{
257    return (long) time((void *) 0);
258}
259
260
261/**
262 * Initialize a RAID volume structure, setting fields to zero. The
263 * actual hard drive is unaffected.
264 *
265 * @param raidrec The RAID volume structure to initialize.
266 * @note This function is system dependent.
267 */
268#ifdef __FreeBSD__
269void initialize_raidrec(struct vinum_volume *raidrec)
270{
271    int i, j;
272    raidrec->volname[0] = '\0';
273    raidrec->plexes = 0;
274    for (i = 0; i < 9; ++i) {
275        raidrec->plex[i].raidlevel = -1;
276        raidrec->plex[i].stripesize = 0;
277        raidrec->plex[i].subdisks = 0;
278        for (j = 0; j < 9; ++j) {
279            strcpy(raidrec->plex[i].sd[j].which_device, "");
280        }
281    }
282}
283#else
284void initialize_raidrec(struct raid_device_record *raidrec)
285{
286    assert(raidrec != NULL);
287    raidrec->raid_device[0] = '\0';
288    raidrec->raid_level = -9;
289    raidrec->persistent_superblock = 1;
290    raidrec->chunk_size = 64;
291    raidrec->parity = -1;
292    raidrec->data_disks.entries = 0;
293    raidrec->spare_disks.entries = 0;
294    raidrec->parity_disks.entries = 0;
295    raidrec->failed_disks.entries = 0;
296    raidrec->additional_vars.entries = 0;
297}
298#endif
299
300
301
302
303/**
304 * Insert modules that Mondo requires.
305 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
306 * @c msdosfs and @c ext2fs for FreeBSD.
307 */
308void insmod_crucial_modules(void)
309{
310#ifdef __FreeBSD__
311    paranoid_system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
312    paranoid_system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
313#else
314    paranoid_system("modprobe -a msdos vfat loop &> /dev/null");
315#endif
316}
317
318/**
319 * Finish configuring the backup information structure. Call this function
320 * to set the parameters that depend on those that can be given on the command
321 * line.
322 *
323 * @param bkpinfo The backup information structure. Fields modified/used:
324 * - Used: @c bkpinfo->backup_data
325 * - Used: @c bkpinfo->backup_media_type
326 * - Used: @c bkpinfo->cdrw_speed
327 * - Used: @c bkpinfo->compression_level
328 * - Used: @c bkpinfo->include_paths
329 * - Used: @c bkpinfo->prefix
330 * - Used: @c bkpinfo->isodir
331 * - Used: @c bkpinfo->manual_cd_tray
332 * - Used: @c bkpinfo->make_cd_use_lilo
333 * - Used: @c bkpinfo->media_device
334 * - Used: @c bkpinfo->netfs_mount
335 * - Used: @c bkpinfo->nonbootable_backup
336 * - Used: @c bkpinfo->scratchdir
337 * - Used: @c bkpinfo->tmpdir
338 * - Used: @c bkpinfo->use_lzo
339 * - Modified: @c bkpinfo->call_before_iso
340 * - Modified: @c bkpinfo->call_make_iso
341 * - Modified: @c bkpinfo->optimal_set_size
342 * - Modified: @c bkpinfo->zip_exe
343 * - Modified: @c bkpinfo->zip_suffix
344 *
345 * @return number of errors, or 0 for success.
346 * @note Also creates directories that are specified in the @c bkpinfo structure but
347 * do not exist.
348 */
349int post_param_configuration()
350{
351    char *extra_cdrom_params = NULL;
352    char *mondo_mkisofs_sz = NULL;
353    char *command = NULL;
354    char *isofs_cmd = NULL;
355    int retval = 0;
356    char *cdr_exe = NULL;
357    char *tmp = NULL;
358    char *call_before_iso_user = NULL;
359    char *iso_dev = NULL;
360    char *iso_mnt = NULL;
361    char *iso_tmp = NULL;
362    char *iso_dir = NULL;
363    char *uefistr = NULL;
364
365    assert(bkpinfo != NULL);
366
367    bkpinfo->optimal_set_size = (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) * 1024L;
368
369    log_msg(1, "Post-param");
370    if (bkpinfo->backup_media_type == tape) {
371        if (whine_if_not_found("mt") == 1) {
372            fatal_error("Please install the mt command");
373        }
374        log_msg(1, "Tape");
375        if (bkpinfo->media_device == NULL) {
376            return(1);
377        }
378        mr_asprintf(tmp, "mt -f %s status", bkpinfo->media_device);
379        log_msg(1, "tmp = '%s'", tmp);
380        if (run_program_and_log_output(tmp, 3)) {
381            mr_free(tmp);
382            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.");
383        }
384        mr_free(tmp);
385    }
386    if (bkpinfo->backup_media_type == iso)
387        make_hole_for_dir(bkpinfo->isodir);
388
389    run_program_and_log_output("uname -a", 5);
390    run_program_and_log_output("cat /etc/*-release", 5);
391    run_program_and_log_output("cat /etc/*issue*", 5);
392#ifdef __FreeBSD__
393#else
394    run_program_and_log_output("cat /proc/cpuinfo", 5);
395    /*
396    run_program_and_log_output("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc", 5);
397    */
398#endif
399
400    if (bkpinfo->use_lzo) {
401        strcpy(bkpinfo->zip_exe, "lzop");
402        strcpy(bkpinfo->zip_suffix, "lzo");
403    } else if (bkpinfo->use_gzip) {
404        strcpy(bkpinfo->zip_exe, "gzip");
405        strcpy(bkpinfo->zip_suffix, "gz");
406    } else if (bkpinfo->use_lzma) {
407        strcpy(bkpinfo->zip_exe, "lzma");
408        strcpy(bkpinfo->zip_suffix, "lzma");
409    } else if (bkpinfo->compression_level != 0) {
410        strcpy(bkpinfo->zip_exe, "bzip2");
411        strcpy(bkpinfo->zip_suffix, "bz2");
412    } else {
413        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
414    }
415
416// DVD
417
418    if (bkpinfo->backup_media_type == dvd) {
419        if (find_home_of_exe("growisofs")) {
420            mr_asprintf(cdr_exe, "growisofs");
421        }                       // unlikely to be used
422        else {
423            fatal_error("Please install growisofs.");
424        }
425        if (bkpinfo->nonbootable_backup) {
426            mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
427        } else if
428#ifdef __FreeBSD__
429            (TRUE)
430#else
431            (bkpinfo->make_cd_use_lilo)
432#endif
433#ifdef __IA64__
434    {
435        mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
436    }
437#else
438    {
439        mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
440    }
441#endif
442        else {
443            mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
444        }
445        if (bkpinfo->manual_cd_tray) {
446            fatal_error("Manual CD tray + DVD not supported yet.");
447            // -m isn't supported by growisofs, BTW...
448        } else {
449            sprintf(bkpinfo->call_make_iso, "%s %s -Z %s . 2>> _ERR_", mondo_mkisofs_sz, "", bkpinfo->media_device);
450        }
451        mr_free(mondo_mkisofs_sz);
452        if (getenv ("SUDO_COMMAND")) {
453            mr_asprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
454            if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
455                mr_free(command);
456                popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
457                fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
458            }       
459            mr_free(command);
460        }
461        log_msg(2, "call_make_iso (DVD res) is ... %s", bkpinfo->call_make_iso);
462    }                           // end of DVD code
463
464// CD-R or CD-RW
465    if (bkpinfo->backup_media_type == cdrw
466        || bkpinfo->backup_media_type == cdr) {
467        if (!bkpinfo->manual_cd_tray) {
468            mr_asprintf(extra_cdrom_params, "-waiti ");
469        }
470        if (bkpinfo->backup_media_type == cdrw) {
471            mr_asprintf(extra_cdrom_params, "blank=fast ");
472        }
473        if (extra_cdrom_params == NULL) {
474            // If not initialized earlier, do it now
475            mr_asprintf(extra_cdrom_params, " ");
476        }
477        if (find_home_of_exe("cdrecord")) {
478            mr_asprintf(cdr_exe, "cdrecord");
479        } else if (find_home_of_exe("dvdrecord")) {
480            mr_asprintf(cdr_exe, "dvdrecord");
481        } else {
482            fatal_error("Please install either cdrecord or dvdrecord.");
483        }
484        if (find_home_of_exe("xorriso")) {
485            mr_asprintf(isofs_cmd, "%s", MONDO_XORRISO_CMD);
486        } else 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            if (bkpinfo->boot_type == UEFI) {
510                if (strstr(isofs_cmd,"xorriso")) {
511                    /*  xorriso needs another '-' before efi-boot */
512                    mr_asprintf(uefistr, "-%s", MONDO_MKISOFS_UEFI);
513                } else {
514                    mr_asprintf(uefistr, "%s", MONDO_MKISOFS_UEFI);
515                }
516            } else {
517                mr_asprintf(uefistr, "%s",MONDO_MKISOFS_CMS);
518            }
519
520            mr_asprintf(mondo_mkisofs_sz, "%s%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_SYSLINUX,uefistr);
521        }
522        mr_free(isofs_cmd);
523
524        if (bkpinfo->manual_cd_tray) {
525            if (bkpinfo->call_before_iso[0] == '\0') {
526                sprintf(bkpinfo->call_before_iso, "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_", mondo_mkisofs_sz, bkpinfo->tmpdir);
527            } else {
528                mr_asprintf(call_before_iso_user, "%s", bkpinfo->call_before_iso);
529                sprintf(bkpinfo->call_before_iso, "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )", mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
530                mr_free(call_before_iso_user);
531            }
532            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
533            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);
534        } else {
535            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);
536        }
537        mr_free(cdr_exe);
538        mr_free(mondo_mkisofs_sz);
539        mr_free(extra_cdrom_params);
540    }                           // end of CD code
541
542    if (bkpinfo->backup_media_type == iso) {
543
544/* Break up isodir into iso_mnt and iso_dir
545 * These will be used along with iso-dev at restore time
546 * to locate the ISOs where ever they're mounted
547 */
548
549        log_it("isodir = %s", bkpinfo->isodir);
550        mr_asprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
551        log_it("command = %s", command);
552        mr_asprintf(iso_dev, "%s", call_program_and_get_last_line_of_output(command));
553        log_it("res of it = %s", iso_dev);
554        mr_asprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
555        write_one_liner_data_file(tmp, iso_dev);
556        mr_free(tmp);
557        mr_free(command);
558
559        mr_asprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
560        mr_free(iso_dev);
561
562        log_it("command = %s", command);
563        mr_asprintf(iso_mnt, "%s", call_program_and_get_last_line_of_output(command));
564        log_it("res of it = %s", iso_mnt);
565        mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
566        write_one_liner_data_file(tmp, iso_mnt);
567        mr_free(tmp);
568        mr_free(command);
569
570        log_it("iso_mnt: %s, %d", iso_mnt, strlen(iso_mnt));
571        mr_asprintf(iso_tmp, "%s", bkpinfo->isodir);
572        if (strlen(iso_tmp) < strlen(iso_mnt)) {
573            mr_asprintf(iso_dir, "%s", "");
574        } else {
575            // If iso_mnt is only / then iso_dir is the full dir
576            // (the formula bellow doesn't work in this case)
577            if (strcmp(iso_mnt, "/") == 0) {
578                mr_asprintf(iso_dir, "%s", iso_tmp);
579            // else it's a part of iso_tmp
580            } else {
581                mr_asprintf(iso_dir, "%s", iso_tmp + strlen(iso_mnt));
582            }
583        }
584        mr_free(iso_mnt);
585        mr_free(iso_tmp);
586
587        mr_asprintf(tmp, "%s/ISO-DIR", bkpinfo->tmpdir);
588        write_one_liner_data_file(tmp, iso_dir);
589        mr_free(tmp);
590
591        log_it("iso-dir: %s", iso_dir);
592        mr_free(iso_dir);
593
594        mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
595        write_one_liner_data_file(tmp, bkpinfo->prefix);
596        mr_free(tmp);
597
598        log_it("iso-prefix: %s",  bkpinfo->prefix);
599
600/* End patch */
601    }                           // end of iso code
602
603    if (bkpinfo->backup_media_type == netfs) {
604        mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
605        write_one_liner_data_file(tmp, bkpinfo->prefix);
606        mr_free(tmp);
607
608        mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
609        write_one_liner_data_file(tmp, bkpinfo->isodir);
610        mr_free(tmp);
611
612        mr_asprintf(tmp, "%s/ISO-DIR", bkpinfo->tmpdir);
613        write_one_liner_data_file(tmp, bkpinfo->netfs_remote_dir);
614        mr_free(tmp);
615
616        if (bkpinfo->netfs_mount) {
617            mr_asprintf(tmp, "%s/NETFS-SERVER-MOUNT", bkpinfo->tmpdir);
618            write_one_liner_data_file(tmp, bkpinfo->netfs_mount);
619            mr_free(tmp);
620        } else {
621            log_it("netfs_mount is NULL");
622            retval++;
623        }
624    }
625
626    log_it("Finished processing incoming params");
627    if (retval) {
628        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
629    }
630    if (bkpinfo->include_paths == NULL) {
631        mr_asprintf(bkpinfo->include_paths, "/");
632    }
633    g_backup_media_type = bkpinfo->backup_media_type;
634    return (retval);
635}
636
637
638
639/**
640 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
641 * Seeds the random-number generator, loads important modules, checks the sanity
642 * of the user's Linux distribution, and deletes logfile.
643 * @param bkpinfo The backup information structure. Will be initialized.
644 * @return number of errors (0 for success)
645 */
646int pre_param_configuration()
647{
648    int res = 0;
649    char *tmp = NULL;
650
651    make_hole_for_dir(MNT_CDROM);
652    assert(bkpinfo != NULL);
653    srandom((unsigned long) (time(NULL)));
654    insmod_crucial_modules();
655    if (bkpinfo->disaster_recovery) {
656        if (!does_nonMS_partition_exist()) {
657            fatal_error("I am in disaster recovery mode\nPlease don't run mondoarchive.");
658        }
659    }
660
661    mr_asprintf(tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
662    run_program_and_log_output(tmp, FALSE);
663    paranoid_free(tmp);
664    if (find_and_store_mondoarchives_home(g_mondo_home)) {
665        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");
666        res++;
667        return (res);
668    }
669    res += some_basic_system_sanity_checks();
670    if (res) {
671        log_it("Your distribution did not pass Mondo's sanity test.");
672    }
673    g_current_media_number = 1;
674    bkpinfo->postnuke_tarball[0] = '\0';
675    return (res);
676}
677
678/*  From busybox under GPLv2 */
679#ifndef HAVE_MKDTEMP
680/* This is now actually part of POSIX.1, but was only added in 2008 */
681char* mkdtemp(char *template)
682{
683    if (mkstemp(template) == -1) {
684        return NULL;
685    }
686    unlink(template);
687    if (mkdir(template, 0700) != 0) {
688        return NULL;
689    }
690    return template;
691}
692#endif
693
694void setup_tmpdir(char *path) {
695
696    char *tmp = NULL;
697    char *p = NULL;
698
699    if (bkpinfo->tmpdir[0] != '\0') {
700        /* purging a potential old tmpdir */
701        if (chdir("/tmp")) {
702            // FIXME
703        }
704        if (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL) {
705            log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
706            mr_asprintf(tmp,"rm -Rf %s",bkpinfo->tmpdir);
707        } else {
708            log_it("Purging old tmpdir %s/mondo.tmp.*", bkpinfo->tmpdir);
709            mr_asprintf(tmp,"rm -Rf %s/mondo.tmp.*",bkpinfo->tmpdir);
710        }
711        paranoid_system(tmp);
712        mr_free(tmp);
713    }
714
715    /* Always take in account arg first, then env, then default */
716    if (path != NULL) {
717        mr_system("mkdir -p %s",path);
718        log_it("Created temporary directory %s", path);
719        mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", path);
720    } else if (getenv("TMPDIR")) {
721        mr_system("mkdir -p %s",getenv("TMPDIR"));
722        log_it("Created temporary directory %s", getenv("TMPDIR"));
723        mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
724    } else if (getenv("MRTMP")) {
725        mr_system("mkdir -p %s",getenv("MRTMP"));
726        log_it("Created temporary directory %s", getenv("MRTMP"));
727        mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("MRTMP"));
728    } else {
729        mr_asprintf(tmp, "/tmp/mondo.tmp.XXXXXX");
730    }
731    p = mkdtemp(tmp);
732    if (p == NULL) {
733        printf("Failed to create global tmp directory %s for Mondo.",tmp);
734        mr_free(tmp);
735        finish(-1);
736    }
737    strcpy(bkpinfo->tmpdir,p);
738    mr_free(tmp);
739
740    log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
741
742    mr_system("mkdir -p %s/tmpfs", bkpinfo->tmpdir);
743}
744
745void setup_scratchdir(char *path) {
746
747    char *tmp = NULL;
748    char *p = NULL;
749
750    if (bkpinfo->scratchdir != NULL) {
751        /* purging a potential old scratchdir */
752        if (chdir("/tmp")) {
753            // FIXME
754        }
755        if (strstr(bkpinfo->scratchdir,"mondo.scratch.") != NULL) {
756            log_it("Purging old scratchdir %s", bkpinfo->scratchdir);
757            mr_asprintf(tmp,"rm -Rf %s",bkpinfo->scratchdir);
758        } else {
759            log_it("Purging old scratchdir %s/mondo.scratch.*", bkpinfo->scratchdir);
760            mr_asprintf(tmp,"rm -Rf %s/mondo.scratch.*",bkpinfo->scratchdir);
761        }
762        paranoid_system(tmp);
763        mr_free(tmp);
764    }
765
766    /* Always take in account arg first, then env, then default */
767    if (path != NULL) {
768        mr_system("mkdir -p %s",path);
769        log_it("Created scratch directory %s", path);
770        mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", path);
771    } else if (getenv("MRSCRATCH")) {
772        mr_system("mkdir -p %s",getenv("MRSCRATCH"));
773        log_it("Created scratch directory %s", getenv("MRSCRATCH"));
774        mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", getenv("MRSCRATCH"));
775    } else {
776        mr_asprintf(tmp, "/tmp/mondo.scratch.XXXXXX");
777    }
778    p = mkdtemp(tmp);
779    if (p == NULL) {
780        log_it("Failed to create global scratch directory %s for Mondo.",tmp);
781        finish(-1);
782    }
783    strcpy(bkpinfo->scratchdir,p);
784    log_it("bkpinfo->scratchdir is being set to %s", bkpinfo->scratchdir);
785    paranoid_free(tmp);
786
787    mr_asprintf(tmp, "mkdir -p %s", bkpinfo->scratchdir);
788    paranoid_system(tmp);
789    mr_free(tmp);
790}
791
792
793/**
794 * Reset all fields of the backup information structure to a sensible default.
795 * @param bkpinfo The @c bkpinfo to reset.
796 */
797void reset_bkpinfo()
798{
799    assert(bkpinfo != NULL);
800    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
801
802    bkpinfo->media_device[0] = '\0';
803    bkpinfo->media_size = -1;
804    bkpinfo->boot_loader = '\0';
805    bkpinfo->boot_device = NULL;
806    bkpinfo->zip_exe[0] = '\0';
807    bkpinfo->zip_suffix[0] = '\0';
808    bkpinfo->image_devs[0] = '\0';
809    bkpinfo->compression_level = 3;
810    bkpinfo->use_lzo = FALSE;
811    bkpinfo->use_gzip = FALSE;
812    bkpinfo->use_lzma = FALSE;
813    bkpinfo->verify_data = FALSE;
814    bkpinfo->backup_data = FALSE;
815    bkpinfo->restore_data = FALSE;
816    bkpinfo->use_star = FALSE;
817    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
818   
819    /*  We need tmpdir as early as possible for further function calls */
820    bkpinfo->tmpdir[0] = '\0';          // Really setup after
821    bkpinfo->scratchdir[0] = '\0';          // Really setup after
822    setup_tmpdir(NULL);
823    setup_scratchdir(NULL);
824
825    bkpinfo->disaster_recovery = am_I_in_disaster_recovery_mode();
826    if (bkpinfo->disaster_recovery) {
827        strcpy(bkpinfo->isodir, "/");
828    } else {
829        strcpy(bkpinfo->isodir, MONDO_CACHE);
830    }
831    strcpy(bkpinfo->prefix, STD_PREFIX);
832    bkpinfo->optimal_set_size = 0L;
833    bkpinfo->backup_media_type = none;
834    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
835    bkpinfo->exclude_paths = NULL;
836    bkpinfo->include_paths = NULL;
837    bkpinfo->exclude_devs = NULL;
838    bkpinfo->restore_path[0] = '\0';
839    bkpinfo->call_before_iso[0] = '\0';
840    bkpinfo->call_make_iso[0] = '\0';
841    bkpinfo->call_burn_iso[0] = '\0';
842    bkpinfo->call_after_iso[0] = '\0';
843    bkpinfo->kernel_path[0] = '\0';
844    bkpinfo->netfs_mount = NULL;
845    bkpinfo->netfs_proto = NULL;
846    bkpinfo->netfs_user = NULL;
847    bkpinfo->netfs_remote_dir = NULL;
848    bkpinfo->postnuke_tarball[0] = '\0';
849    bkpinfo->subdir = NULL;
850    bkpinfo->wipe_media_first = FALSE;
851    bkpinfo->differential = 0;
852    bkpinfo->please_dont_eject = FALSE;
853    bkpinfo->cdrw_speed = 0;
854    bkpinfo->manual_cd_tray = FALSE;
855    bkpinfo->nonbootable_backup = FALSE;
856    bkpinfo->make_cd_use_lilo = FALSE;
857    bkpinfo->use_obdr = FALSE;
858    bkpinfo->restore_mode = interactive;
859    bkpinfo->boot_type = BIOS;
860}
861
862
863/**
864 * Get the remaining free space (in MB) on @p partition.
865 * @param partition The partition to check free space on (either a device or a mountpoint).
866 * @return The free space on @p partition, in MB.
867 */
868long free_space_on_given_partition(char *partition)
869{
870    char *out_sz = NULL;
871    char *command = NULL;
872    long res;
873
874    assert_string_is_neither_NULL_nor_zerolength(partition);
875
876    mr_asprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
877    if (system(command)) {
878        mr_free(command);
879        return (-1);
880    }                           // partition does not exist
881    mr_free(command);
882
883    mr_asprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4", partition);
884    mr_asprintf(out_sz, "%s", call_program_and_get_last_line_of_output(command));
885    mr_free(command);
886
887    if (strlen(out_sz) == 0) {
888        mr_free(out_sz);
889        return (-1);
890    }                           // error within df, probably
891    res = atol(out_sz);
892    mr_free(out_sz);
893    return (res);
894}
895
896
897
898/**
899 * Check the user's system for sanity. Checks performed:
900 * - make sure user has enough RAM (32mb required, 64mb recommended)
901 * - make sure user has enough free space in @c /
902 * - check kernel for ramdisk support
903 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
904 * - make sure CD-ROM is unmounted
905 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
906 *
907 * @return number of problems with the user's setup (0 for success)
908 */
909int some_basic_system_sanity_checks()
910{
911
912    /*@ buffers ************ */
913    char *tmp = NULL;
914
915    /*@ int's *************** */
916    int retval = 0;
917
918    mvaddstr_and_log_it(g_currentY, 0, "Checking sanity of your Linux distribution");
919#ifndef __FreeBSD__
920    if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
921        && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
922        log_it("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
923        run_program_and_log_output("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
924    }
925    mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
926    if (atol(tmp) < 35000) {
927        retval++;
928        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
929    }
930    if (atol(tmp) < 66000) {
931        log_to_screen("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
932    }
933    mr_free(tmp);
934#endif
935
936    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
937        retval++;
938        log_to_screen
939            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
940        fatal_error
941            ("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. :)");
942    }
943#ifndef __FreeBSD__
944    if (run_program_and_log_output
945        ("grep ramdisk /proc/devices", FALSE)) {
946        /* Some SuSE have ramdisk as modules, so insert it first, then test again */
947        run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
948        if (run_program_and_log_output("grep ramdisk /proc/devices", FALSE)) {
949            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?")) {
950                //          retval++;
951                log_to_screen("It looks as if your kernel lacks ramdisk and initrd support.");
952                log_to_screen("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
953            }
954        }
955    }
956#endif
957    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
958    if (system("which xorriso > /dev/null 2> /dev/null")) {
959        if (system("which genisoimage > /dev/null 2> /dev/null")) {
960            retval += whine_if_not_found("mkisofs");
961        }
962    }
963    if (system("which wodim > /dev/null 2> /dev/null")) {
964        retval += whine_if_not_found("cdrecord");
965    }
966    retval += whine_if_not_found("bzip2");
967    retval += whine_if_not_found("gzip");
968    retval += whine_if_not_found("awk");
969    retval += whine_if_not_found("md5sum");
970    retval += whine_if_not_found("strings");
971    retval += whine_if_not_found("mindi");
972    retval += whine_if_not_found("buffer");
973
974    // abort if Windows partition but no ms-sys and parted
975    if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
976        if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -Ew efi", 0)) {
977            log_to_screen("I think you have a EFI/UEFI partition.");
978        } else {
979            log_to_screen("I think you have a Windows 9x partition.");
980        }
981        retval += whine_if_not_found("parted");
982    }
983
984    if (!find_home_of_exe("cmp")) {
985        whine_if_not_found("cmp");
986    }
987    run_program_and_log_output("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
988    mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("mount | grep -E \"cdr(om|w)\""));
989    if (strcmp("", tmp)) {
990        if (strstr(tmp, "autofs")) {
991            log_to_screen("Your CD-ROM is mounted via autofs. I therefore cannot tell");
992            log_to_screen("if a CD actually is inserted. If a CD is inserted, please");
993            log_to_screen("eject it. Thank you.");
994            log_it("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
995        } else
996            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
997            retval++;
998            mr_free(tmp);
999            fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
1000        }
1001    }
1002    mr_free(tmp);
1003
1004    run_program_and_log_output("cat /etc/fstab", 5);
1005#ifdef __FreeBSD__
1006    run_program_and_log_output("vinum printconfig", 5);
1007#else
1008    run_program_and_log_output("cat /etc/raidtab", 5);
1009#endif
1010
1011    if (run_program_and_log_output("mindi -V", 1)) {
1012        log_to_screen("Could not ascertain mindi's version number.");
1013        log_to_screen("You have not installed Mondo and/or Mindi properly.");
1014        log_to_screen("Please uninstall and reinstall them both.");
1015        fatal_error("Please reinstall Mondo and Mindi.");
1016    }
1017    mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1018    if (run_program_and_log_output(tmp, 5)) {
1019        log_to_screen("%s failed for some reason.", tmp);
1020        mr_free(tmp);
1021        log_to_screen("Please run that command by hand and examine "MINDI_LOGFILE);
1022        log_to_screen("for more information. Perhaps your /etc/fstab file is insane.");
1023        log_to_screen("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1024        retval++;
1025    }
1026    mr_free(tmp);
1027
1028    if (!run_program_and_log_output("mr-parted2fdisk -l 2>/dev/null | grep -i raid", 1) && !does_file_exist("/etc/raidtab")) {
1029        log_to_screen("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1030        create_raidtab_from_mdstat(MDSTAT_FILE,"/etc/raidtab");
1031    }
1032
1033    if (retval) {
1034        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1035    } else {
1036        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1037    }
1038    return (retval);
1039}
1040
1041/**
1042 * Retrieve the line containing @p label from the config file.
1043 * @param config_file The file to read from, usually @c /tmp/mondorestore.cfg.
1044 * @param label What to read from the file.
1045 * @param value Where to put it.
1046 * @return 0 for success, 1 for failure.
1047 */
1048int read_cfg_var(char *config_file, char *label, char *value)
1049{
1050    /*@ buffer ****************************************************** */
1051    char *command = NULL;
1052
1053    /*@ end vars *************************************************** */
1054
1055    assert_string_is_neither_NULL_nor_zerolength(config_file);
1056    assert_string_is_neither_NULL_nor_zerolength(label);
1057    if (!does_file_exist(config_file)) {
1058        log_to_screen("(read_cfg_var) Cannot find %s config file", config_file);
1059        value[0] = '\0';
1060        return (1);
1061    } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1062        log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1063        return (0);
1064    } else {
1065        mr_asprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1066        strcpy(value, call_program_and_get_last_line_of_output(command));
1067        mr_free(command);
1068
1069        log_msg(4, "Configuration item %s is %s", label, value);
1070        if (strlen(value) == 0) {
1071            return (1);
1072        } else {
1073            return (0);
1074        }
1075    }
1076}
1077
1078
1079
1080/**
1081 * Remount @c supermount if it was unmounted earlier.
1082 */
1083void remount_supermounts_if_necessary()
1084{
1085    if (g_remount_cdrom_at_end) {
1086        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1087    }
1088    if (g_remount_floppy_at_end) {
1089        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1090    }
1091}
1092
1093/**
1094 * Unmount @c supermount if it's mounted.
1095 */
1096void unmount_supermounts_if_necessary()
1097{
1098    if (run_program_and_log_output
1099        ("mount | grep cdrom | grep super", FALSE) == 0) {
1100        g_remount_cdrom_at_end = TRUE;
1101        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1102    }
1103    if (run_program_and_log_output
1104        ("mount | grep floppy | grep super", FALSE) == 0) {
1105        g_remount_floppy_at_end = TRUE;
1106        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1107    }
1108}
1109
1110/**
1111 * Whether we had to stop autofs (if so, restart it at end).
1112 */
1113bool g_autofs_stopped = FALSE;
1114
1115/**
1116 * Path to the autofs initscript ("" if none exists).
1117 */
1118char g_autofs_exe[MAX_STR_LEN];
1119
1120/**
1121 * Autofs initscript in Xandros Linux distribution.
1122 */
1123#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1124
1125/**
1126 * Autofs initscript in most Linux distributions.
1127 */
1128#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1129
1130/**
1131 * If autofs is mounted, stop it (restart at end).
1132 */
1133void stop_autofs_if_necessary()
1134{
1135    char *tmp = NULL;
1136
1137    g_autofs_exe[0] = '\0';
1138    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1139        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1140    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1141        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1142    }
1143
1144    if (!g_autofs_exe[0]) {
1145        log_msg(3, "No autofs detected.");
1146    } else {
1147        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1148        // FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1149        mr_asprintf(tmp, "%s stop", g_autofs_exe);
1150        if (run_program_and_log_output(tmp, 2)) {
1151            log_it("Failed to stop autofs - I assume it wasn't running");
1152        } else {
1153            g_autofs_stopped = TRUE;
1154            log_it("Stopped autofs OK");
1155        }
1156        mr_free(tmp);
1157    }
1158}
1159
1160/**
1161 * If autofs was stopped earlier, restart it.
1162 */
1163void restart_autofs_if_necessary()
1164{
1165    char *tmp = NULL;
1166
1167    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1168        log_msg(3, "No autofs detected.");
1169        return;
1170    }
1171    mr_asprintf(tmp, "%s start", g_autofs_exe);
1172    if (run_program_and_log_output(tmp, 2)) {
1173        log_it("Failed to start autofs");
1174    } else {
1175        g_autofs_stopped = FALSE;
1176        log_it("Started autofs OK");
1177    }
1178    mr_free(tmp);
1179}
1180
1181
1182/**
1183 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1184 */
1185void mount_boot_if_necessary() {
1186    char *tmp = NULL;
1187    char *command = NULL;
1188
1189    log_msg(1, "Started sub");
1190    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1191    g_boot_mountpt[0] = '\0';
1192    log_msg(4, "Done. Great. Seeting command to something");
1193    mr_asprintf(command, "%s", "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[   ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1194    log_msg(4, "Cool. Command = '%s'", command);
1195    mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
1196    mr_free(command);
1197
1198    log_msg(4, "tmp = '%s'", tmp);
1199    log_it("/boot is at %s according to /etc/fstab", tmp);
1200    mr_asprintf(command, "mount | grep -Ew '/boot'");
1201    mr_free(tmp);
1202
1203    mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
1204    mr_free(command);
1205
1206    if (!strcmp(tmp,"")) {
1207        if ((strstr(tmp, "LABEL=") != NULL) || (strstr(tmp,"UUID=") != NULL)) {
1208            if (!run_program_and_log_output("mount /boot", 5)) {
1209                strcpy(g_boot_mountpt, "/boot");
1210                log_msg(1, "Mounted /boot");
1211            } else {
1212                log_it("...ignored cos it's a label or uuid :-)");
1213            }
1214        } else {
1215            mr_asprintf(command, "mount | grep -E '^%s'", tmp);
1216            log_msg(3, "command = %s", command);
1217            if (run_program_and_log_output(command, 5)) {
1218                strcpy(g_boot_mountpt, tmp);
1219                mr_free(tmp);
1220                log_it("%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1221
1222                mr_asprintf(tmp, "mount %s", g_boot_mountpt);
1223                if (run_program_and_log_output(tmp, 5)) {
1224                    g_boot_mountpt[0] = '\0';
1225                    log_msg(1, "Plan B");
1226                    if (!run_program_and_log_output("mount /boot", 5)) {
1227                        strcpy(g_boot_mountpt, "/boot");
1228                        log_msg(1, "Plan B worked");
1229                    } else {
1230                        log_msg(1,
1231                            "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1232                    }
1233                }
1234            }
1235            mr_free(command);
1236        }
1237    }
1238    mr_free(tmp);
1239    log_msg(1, "Ended sub");
1240}
1241
1242
1243/**
1244 * If we mounted /boot earlier, unmount it.
1245 */
1246void unmount_boot_if_necessary()
1247{
1248    char *tmp = NULL;
1249
1250    log_msg(3, "starting");
1251    if (g_boot_mountpt[0]) {
1252        mr_asprintf(tmp, "umount %s", g_boot_mountpt);
1253        if (run_program_and_log_output(tmp, 5)) {
1254            log_it("WARNING - unable to unmount /boot");
1255        }
1256        mr_free(tmp);
1257    }
1258    log_msg(3, "leaving");
1259}
1260
1261
1262
1263/**
1264 * Write a line to a configuration file. Writes a line of the form,
1265 * @c label @c value.
1266 * @param config_file The file to write to. Usually @c mondorestore.cfg.
1267 * @param label What to call this bit of data you're writing.
1268 * @param value The bit of data you're writing.
1269 * @return 0 for success, 1 for failure.
1270 */
1271int write_cfg_var(char *config_file, char *label, char *value)
1272{
1273    /*@ buffers ***************************************************** */
1274    char *command = NULL;
1275    char *tempfile = NULL;
1276
1277
1278    /*@ end vars *************************************************** */
1279    assert_string_is_neither_NULL_nor_zerolength(config_file);
1280    assert_string_is_neither_NULL_nor_zerolength(label);
1281    assert(value != NULL);
1282    if (!does_file_exist(config_file)) {
1283        log_to_screen("(write_cfg_file) Cannot find %s config file", config_file);
1284        return (1);
1285    }
1286    mr_asprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1287    if (does_file_exist(config_file)) {
1288        mr_asprintf(command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1289        paranoid_system(command);
1290        mr_free(command);
1291    }
1292    mr_asprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1293    paranoid_system(command);
1294    mr_free(command);
1295
1296    mr_asprintf(command, "mv -f %s %s", tempfile, config_file);
1297    paranoid_system(command);
1298    mr_free(command);
1299    unlink(tempfile);
1300    mr_free(tempfile);
1301    return (0);
1302}
1303
1304
1305/**
1306 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1307 * information to the logfile.
1308 */
1309void standard_log_debug_msg(int debug_level, const char *szFile, const char *szFunction, int nLine, const char *fmt, ...) {
1310
1311    va_list args;
1312    static int depth = 0;
1313    FILE *fout;
1314
1315    if (depth > 5) {
1316        depth--;
1317        return;
1318    }
1319    depth++;
1320
1321    if (debug_level <= g_loglevel) {
1322        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1323            return;
1324        }
1325
1326        // add tabs to distinguish log levels
1327        if (debug_level > 0) {
1328            fprintf(fout, "DBG%d: ", debug_level);
1329            if (getpid() == g_main_pid)
1330                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1331            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1332                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1333            else
1334                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1335        } else {
1336            fprintf(fout, "INFO: ");
1337        }
1338        va_start(args, fmt);
1339        vfprintf(fout, fmt, args);
1340        va_end(args);
1341
1342        fprintf(fout, "\n");
1343        paranoid_fclose(fout);
1344    }
1345    depth--;
1346}
1347
1348/**
1349 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1350 */
1351void (*log_debug_msg) (int, const char *, const char *, int, const char *, ...) = standard_log_debug_msg;
1352
1353
1354/**
1355 * Allocate or free important globals, depending on @p mal.
1356 * @param mal If TRUE, malloc; if FALSE, free.
1357 */
1358void do_libmondo_global_strings_thing(int mal)
1359{
1360    if (mal) {
1361        malloc_string(g_boot_mountpt);
1362        malloc_string(g_mondo_home);
1363        malloc_string(g_serial_string);
1364        malloc_string(g_magicdev_command);
1365    } else {
1366        paranoid_free(g_boot_mountpt);
1367        paranoid_free(g_mondo_home);
1368        paranoid_free(g_magicdev_command);
1369
1370        mr_free(g_serial_string);
1371    }
1372}
1373
1374/**
1375 * Allocate important globals.
1376 * @see do_libmondo_global_strings_thing
1377 */
1378void malloc_libmondo_global_strings(void)
1379{
1380    do_libmondo_global_strings_thing(1);
1381}
1382
1383/**
1384 * Free important globals.
1385 * @see do_libmondo_global_strings_thing
1386 */
1387void free_libmondo_global_strings(void)
1388{
1389    do_libmondo_global_strings_thing(0);
1390}
1391
1392
1393
1394/**
1395 * Stop @c magicdev if it's running.
1396 * The command used to start it is saved in @p g_magicdev_command.
1397 */
1398void stop_magicdev_if_necessary()
1399{
1400    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"));
1401    if (g_magicdev_command[0]) {
1402        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1403        paranoid_system("killall magicdev");
1404    }
1405}
1406
1407
1408/**
1409 * Restart magicdev if it was stopped.
1410 */
1411void restart_magicdev_if_necessary()
1412{
1413    char *tmp = NULL;
1414
1415    if (g_magicdev_command && g_magicdev_command[0]) {
1416        mr_asprintf(tmp, "%s &", g_magicdev_command);
1417        paranoid_system(tmp);
1418        mr_free(tmp);
1419    }
1420}
1421
1422/* @} - end of utilityGroup */
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