source: branches/3.0/mondo/src/common/libmondo-tools.c @ 3107

Last change on this file since 3107 was 3060, checked in by Bruno Cornec, 7 years ago

r5035@localhost: bruno | 2012-11-09 03:17:01 +0100

  • Fix a compilation error and most compilation warnings
  • Property svn:keywords set to Id
File size: 40.0 KB
Line 
1/*
2   $Id: libmondo-tools.c 3060 2012-11-10 04:05:37Z 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 3060 2012-11-10 04:05:37Z bruno $";
30
31extern int g_tape_buffer_size_MB;
32extern char *g_serial_string;
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;             ///< 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 */
63char *g_serial_string = NULL;
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#ifndef _XWIN
116    if (!g_text_mode)
117        newtSuspend();
118#endif
119    printf("ASSERTION FAILED: `%s'\n", exp);
120    printf("\tat %s:%d in %s\n\n", file, line, function);
121    printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
122    do {
123        is_valid = TRUE;
124        switch (toupper(getchar())) {
125        case 'A':               // ignore (A)ll
126            ignoring_assertions = 1;
127            break;
128        case 'B':               // a(B)ort
129            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
130            raise(SIGABRT);
131            break;              /* "can't get here" */
132        case 'D':               // (D)ebug, aka asm("int 3")
133#ifdef __IA32__
134            __asm__ __volatile__("int $3"); // break to debugger
135#endif
136            break;
137        case 'E':               // (E)xit
138            fatal_error("Failed assertion -- see above for details");
139            break;              /* "can't get here" */
140        case 'I':               // (I)gnore
141            break;
142            /* These next two work as follows:
143               the `default' catches the user's invalid choice and says so;
144               the '\n' catches the newline on the end and prints the prompt again.
145             */
146        case '\n':
147            printf
148                ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
149            break;
150        default:
151            is_valid = FALSE;
152            printf("Invalid choice.\n");
153            break;
154        }
155    } while (!is_valid);
156
157    if (ignoring_assertions) {
158        log_it("Ignoring ALL assertions from now on.");
159    } else {
160        log_it("Ignoring assertion: %s", exp);
161    }
162
163    getchar();                  // skip \n
164
165#ifndef _XWIN
166    if (!g_text_mode)
167        newtResume();
168#endif
169}
170
171/**
172 * Clean's up users' KDE desktops.
173 * @bug Details about this function are unknown.
174 */
175void clean_up_KDE_desktop_if_necessary(void)
176{
177    char *tmp;
178
179    malloc_string(tmp);
180    strcpy(tmp,
181           "for i in `find /root /home -maxdepth 2 -type d -name Desktop`; do \
182file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
183awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
184else { print $0;};}' $file.old  > $file ; fi ; done");
185    run_program_and_log_output(tmp, 5);
186    paranoid_free(tmp);
187}
188
189
190/**
191 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
192 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
193 *
194 * @param home_sz String to store the home directory ("" if it could not be found).
195 * @return 0 for success, nonzero for failure.
196 */
197int find_and_store_mondoarchives_home(char *home_sz)
198{
199    assert(home_sz != NULL);
200    strcpy(home_sz, MONDO_SHARE);
201    return (0);
202}
203
204
205char *get_architecture(void) {
206#ifdef __IA32__
207#   ifdef __X86_64__
208        return ("x86_64");
209#   else
210        return ("i386");
211#   endif
212#endif
213#ifdef __IA64__
214    return ("ia64");
215#endif
216    return ("unknown");
217}
218
219
220char *get_uname_m(void) {
221
222    struct utsname utsn;
223    char *tmp = NULL;
224
225    uname(&utsn);
226    mr_asprintf(&tmp, "%s", utsn.machine);
227    return (tmp);
228}
229
230
231
232double get_kernel_version(void)
233{
234    char *p, tmp[200];
235    double d;
236#ifdef __FreeBSD__
237    // JOSH - FIXME :)
238    d = 5.2;                    // :-)
239#else
240    strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
241    p = strchr(tmp, '.');
242    if (p) {
243        p = strchr(++p, '.');
244        if (p) {
245            while (*p) {
246                *p = *(p + 1);
247                p++;
248            }
249        }
250    }
251//  log_msg(1, "tmp = '%s'", tmp);
252    d = atof(tmp);
253#endif
254    log_msg(1, "g_kernel_version = %f", d);
255    return (d);
256}
257
258
259
260
261
262/**
263 * Get the current time.
264 * @return number of seconds since the epoch.
265 */
266long get_time()
267{
268    return (long) time((void *) 0);
269}
270
271
272
273
274
275
276
277/**
278 * Initialize a RAID volume structure, setting fields to zero. The
279 * actual hard drive is unaffected.
280 *
281 * @param raidrec The RAID volume structure to initialize.
282 * @note This function is system dependent.
283 */
284#ifdef __FreeBSD__
285void initialize_raidrec(struct vinum_volume *raidrec)
286{
287    int i, j;
288    raidrec->volname[0] = '\0';
289    raidrec->plexes = 0;
290    for (i = 0; i < 9; ++i) {
291        raidrec->plex[i].raidlevel = -1;
292        raidrec->plex[i].stripesize = 0;
293        raidrec->plex[i].subdisks = 0;
294        for (j = 0; j < 9; ++j) {
295            strcpy(raidrec->plex[i].sd[j].which_device, "");
296        }
297    }
298}
299#else
300void initialize_raidrec(struct raid_device_record *raidrec)
301{
302    assert(raidrec != NULL);
303    raidrec->raid_device[0] = '\0';
304    raidrec->raid_level = -9;
305    raidrec->persistent_superblock = 1;
306    raidrec->chunk_size = 64;
307    raidrec->parity = -1;
308    raidrec->data_disks.entries = 0;
309    raidrec->spare_disks.entries = 0;
310    raidrec->parity_disks.entries = 0;
311    raidrec->failed_disks.entries = 0;
312    raidrec->additional_vars.entries = 0;
313}
314#endif
315
316
317
318
319/**
320 * Insert modules that Mondo requires.
321 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
322 * @c msdosfs and @c ext2fs for FreeBSD.
323 */
324void insmod_crucial_modules(void)
325{
326#ifdef __FreeBSD__
327    paranoid_system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
328    paranoid_system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
329#else
330    paranoid_system("modprobe -a msdos vfat loop &> /dev/null");
331#endif
332}
333
334/**
335 * Finish configuring the backup information structure. Call this function
336 * to set the parameters that depend on those that can be given on the command
337 * line.
338 *
339 * @param bkpinfo The backup information structure. Fields modified/used:
340 * - Used: @c bkpinfo->backup_data
341 * - Used: @c bkpinfo->backup_media_type
342 * - Used: @c bkpinfo->cdrw_speed
343 * - Used: @c bkpinfo->compression_level
344 * - Used: @c bkpinfo->include_paths
345 * - Used: @c bkpinfo->prefix
346 * - Used: @c bkpinfo->isodir
347 * - Used: @c bkpinfo->manual_cd_tray
348 * - Used: @c bkpinfo->make_cd_use_lilo
349 * - Used: @c bkpinfo->media_device
350 * - Used: @c bkpinfo->netfs_mount
351 * - Used: @c bkpinfo->nonbootable_backup
352 * - Used: @c bkpinfo->scratchdir
353 * - Used: @c bkpinfo->tmpdir
354 * - Used: @c bkpinfo->use_lzo
355 * - Modified: @c bkpinfo->call_before_iso
356 * - Modified: @c bkpinfo->call_make_iso
357 * - Modified: @c bkpinfo->optimal_set_size
358 * - Modified: @c bkpinfo->zip_exe
359 * - Modified: @c bkpinfo->zip_suffix
360 *
361 * @return number of errors, or 0 for success.
362 * @note Also creates directories that are specified in the @c bkpinfo structure but
363 * do not exist.
364 */
365int post_param_configuration()
366{
367    char *extra_cdrom_params = NULL;
368    char *mondo_mkisofs_sz = NULL;
369    char *command = NULL;
370    char *mtpt;
371    char *hostname;
372    char *isofs_cmd = NULL;
373    char *ip_address = NULL;
374    int retval = 0;
375    char *colon;
376    char *cdr_exe;
377    char *tmp = NULL;
378    char call_before_iso_user[MAX_STR_LEN] = "\0";
379    /*
380    long avm = 0;
381    int rdsiz_MB;
382    */
383    char *iso_dev = NULL;
384    char *iso_mnt = NULL;
385    char *iso_tmp = NULL;
386    char *iso_path = NULL;
387
388    assert(bkpinfo != NULL);
389    malloc_string(mtpt);
390    malloc_string(hostname);
391    malloc_string(cdr_exe);
392    bkpinfo->optimal_set_size =
393        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
394        1024;
395
396    log_msg(1, "Post-param");
397    if (bkpinfo->backup_media_type == tape) {
398        if (whine_if_not_found("mt") == 1) {
399            fatal_error("Please install the mt command");
400        }
401        log_msg(1, "Tape");
402        mr_asprintf(&tmp, "mt -f %s status", bkpinfo->media_device);
403        log_msg(1, "tmp = '%s'", tmp);
404        if (run_program_and_log_output(tmp, 3)) {
405            mr_free(tmp);
406            fatal_error
407                ("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.");
408        }
409        mr_free(tmp);
410    }
411    make_hole_for_dir(bkpinfo->scratchdir);
412    if (bkpinfo->backup_media_type == iso)
413        make_hole_for_dir(bkpinfo->isodir);
414
415    run_program_and_log_output("uname -a", 5);
416    run_program_and_log_output("cat /etc/*-release", 5);
417    run_program_and_log_output("cat /etc/*issue*", 5);
418#ifdef __FreeBSD__
419#else
420    run_program_and_log_output("cat /proc/cpuinfo", 5);
421    run_program_and_log_output
422        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
423         5);
424#endif
425
426    if (bkpinfo->use_lzo) {
427        strcpy(bkpinfo->zip_exe, "lzop");
428        strcpy(bkpinfo->zip_suffix, "lzo");
429    } else if (bkpinfo->use_gzip) {
430        strcpy(bkpinfo->zip_exe, "gzip");
431        strcpy(bkpinfo->zip_suffix, "gz");
432    } else if (bkpinfo->compression_level != 0) {
433        strcpy(bkpinfo->zip_exe, "bzip2");
434        strcpy(bkpinfo->zip_suffix, "bz2");
435    } else {
436        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
437    }
438
439// DVD
440
441    if (bkpinfo->backup_media_type == dvd) {
442        if (find_home_of_exe("growisofs")) {
443            strcpy(cdr_exe, "growisofs");
444        }                       // unlikely to be used
445        else {
446            fatal_error("Please install growisofs.");
447        }
448        if (bkpinfo->nonbootable_backup) {
449            mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
450        } else if
451#ifdef __FreeBSD__
452            (TRUE)
453#else
454            (bkpinfo->make_cd_use_lilo)
455#endif
456#ifdef __IA64__
457    {
458        mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
459    }
460#else
461    {
462        mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
463    }
464#endif
465        else
466        {
467            mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
468        }
469        if (bkpinfo->manual_cd_tray) {
470            paranoid_free(mondo_mkisofs_sz);
471            fatal_error("Manual CD tray + DVD not supported yet.");
472            // -m isn't supported by growisofs, BTW...
473        } else {
474            sprintf(bkpinfo->call_make_iso,
475                    "%s %s -Z %s . 2>> _ERR_",
476                    mondo_mkisofs_sz,
477                    "", bkpinfo->media_device);
478            paranoid_free(mondo_mkisofs_sz);
479        }
480        if (getenv ("SUDO_COMMAND")) {
481            mr_asprintf(&command, "strings `which growisofs` | grep -c SUDO_COMMAND");
482            if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
483                mr_free(command);
484                popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
485                fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
486            }       
487            mr_free(command);
488        }
489        log_msg(2, "call_make_iso (DVD res) is ... %s",
490                bkpinfo->call_make_iso);
491    }                           // end of DVD code
492
493// CD-R or CD-RW
494    if (bkpinfo->backup_media_type == cdrw
495        || bkpinfo->backup_media_type == cdr) {
496        if (!bkpinfo->manual_cd_tray) {
497            mr_asprintf(&extra_cdrom_params, "-waiti ");
498        }
499        if (bkpinfo->backup_media_type == cdrw) {
500            mr_asprintf(&extra_cdrom_params, "blank=fast ");
501        }
502        if (extra_cdrom_params == NULL) {
503            // If not initialized earlier, do it now
504            mr_asprintf(&extra_cdrom_params, " ");
505        }
506        if (find_home_of_exe("cdrecord")) {
507            strcpy(cdr_exe, "cdrecord");
508        } else if (find_home_of_exe("dvdrecord")) {
509            strcpy(cdr_exe, "dvdrecord");
510        } else {
511            fatal_error("Please install either cdrecord or dvdrecord.");
512        }
513        if (find_home_of_exe("genisoimage")) {
514            mr_asprintf(&isofs_cmd, "%s", MONDO_GENISOIMAGE_CMD);
515        } else {
516            mr_asprintf(&isofs_cmd, "%s", MONDO_MKISOFS_CMD);
517        }
518        if (bkpinfo->nonbootable_backup) {
519            mr_asprintf(&mondo_mkisofs_sz, "%s%s", isofs_cmd, MONDO_MKISOFS);
520        } else if
521#ifdef __FreeBSD__
522            (TRUE)
523#else
524            (bkpinfo->make_cd_use_lilo)
525#endif
526#ifdef __IA64__
527    {
528        mr_asprintf(&mondo_mkisofs_sz, "%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_ELILO);
529    }
530#else
531    {
532        mr_asprintf(&mondo_mkisofs_sz, "%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_LILO);
533    }
534#endif
535        else
536        {
537            mr_asprintf(&mondo_mkisofs_sz, "%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_SYSLINUX);
538        }
539        mr_free(isofs_cmd);
540
541        if (bkpinfo->manual_cd_tray) {
542            if (bkpinfo->call_before_iso[0] == '\0') {
543            sprintf(bkpinfo->call_before_iso,
544                        "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_",
545                        mondo_mkisofs_sz, bkpinfo->tmpdir);
546                } else {
547                strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
548                sprintf (bkpinfo->call_before_iso,
549                                    "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )",
550                        mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
551            }
552            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
553            sprintf(bkpinfo->call_make_iso,
554                    "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS,
555                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
556                    extra_cdrom_params, bkpinfo->media_device,
557                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
558        } else {
559            sprintf(bkpinfo->call_make_iso,
560                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
561                    mondo_mkisofs_sz, cdr_exe,
562                    (bkpinfo->please_dont_eject) ? " " : "-eject",
563                    extra_cdrom_params, bkpinfo->media_device,
564                    bkpinfo->cdrw_speed);
565        }
566        paranoid_free(mondo_mkisofs_sz);
567        paranoid_free(extra_cdrom_params);
568    }                           // end of CD code
569
570    if (bkpinfo->backup_media_type == iso) {
571
572/* Patch by Conor Daly <conor.daly@met.ie>
573 * 23-june-2004
574 * Break up isodir into iso_mnt and iso_path
575 * These will be used along with iso-dev at restore time
576 * to locate the ISOs where ever they're mounted
577 */
578
579        log_it("isodir = %s", bkpinfo->isodir);
580        mr_asprintf(&command, "df -P %s | tail -n1 | cut -d' ' -f1",
581                bkpinfo->isodir);
582        log_it("command = %s", command);
583        log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
584        mr_asprintf(&iso_dev, "%s", call_program_and_get_last_line_of_output(command));
585        mr_asprintf(&tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
586        write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
587        mr_free(tmp);
588        mr_free(command);
589
590        mr_asprintf(&command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
591        mr_free(iso_dev);
592
593        log_it("command = %s", command);
594        log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
595        mr_asprintf(&iso_mnt, "%s", call_program_and_get_last_line_of_output(command));
596        mr_asprintf(&tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
597        write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
598        mr_free(tmp);
599        mr_free(command);
600
601        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
602        mr_asprintf(&iso_tmp, "%s", bkpinfo->isodir);
603        if (strlen(iso_tmp) < strlen(iso_mnt)) {
604            mr_asprintf(&iso_path, "%s", "");
605        } else {
606            // If iso_mnt is only / then iso_path is the full dir
607            // (the formula bellow doesn't work in this case)
608            if (strcmp(iso_mnt, "/") == 0) {
609                mr_asprintf(&iso_path, "%s", iso_tmp);
610            // else it's a part of iso_tmp
611            } else {
612                mr_asprintf(&iso_path, "%s", iso_tmp + strlen(iso_mnt));
613            }
614        }
615        mr_free(iso_tmp);
616        mr_free(iso_mnt);
617
618        mr_asprintf(&tmp, "%s/ISODIR", bkpinfo->tmpdir);
619        write_one_liner_data_file(tmp, iso_path);
620        mr_free(tmp);
621
622        log_it("isodir: %s", iso_path);
623        mr_free(iso_path);
624
625        mr_asprintf(&tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
626        write_one_liner_data_file(tmp, bkpinfo->prefix);
627        mr_free(tmp);
628
629        log_it("iso-prefix: %s",  bkpinfo->prefix);
630
631/* End patch */
632    }                           // end of iso code
633
634    if (bkpinfo->backup_media_type == netfs) {
635        strcpy(hostname, bkpinfo->netfs_mount);
636        colon = strchr(hostname, ':');
637        if (!colon) {
638            log_it("netfs mount doesn't have a colon in it");
639            retval++;
640        } else {
641            struct hostent *hent;
642
643            *colon = '\0';
644            colon = strchr(hostname, '@');
645            if (colon) {
646                *colon = '\0';
647                colon++;
648                hent = gethostbyname(colon);
649                mr_asprintf(&(bkpinfo->netfs_user),"%s", hostname);
650            } else {
651                hent = gethostbyname(hostname);
652            }
653            if (!hent) {
654                log_it("Can't resolve Network mount (%s): %s", hostname,
655                       hstrerror(h_errno));
656                retval++;
657            } else {
658                mr_asprintf(&ip_address, "%s", inet_ntoa((struct in_addr) *((struct in_addr *) hent->h_addr)));
659                mr_strcat(ip_address, strchr(bkpinfo->netfs_mount, ':'));
660                strcpy(bkpinfo->netfs_mount, ip_address);
661                paranoid_free(ip_address);
662            }
663        }
664        store_netfs_config();
665    }
666
667    log_it("Finished processing incoming params");
668    if (retval) {
669        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
670    }
671    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
672        log_it("tmpdir or scratchdir are blank/missing");
673        retval++;
674    }
675    if (bkpinfo->include_paths[0] == '\0') {
676        //      fatal_error ("Why no backup path?");
677        strcpy(bkpinfo->include_paths, "/");
678    }
679    chmod(bkpinfo->scratchdir, 0700);
680    g_backup_media_type = bkpinfo->backup_media_type;
681    paranoid_free(mtpt);
682    paranoid_free(hostname);
683    paranoid_free(cdr_exe);
684    return (retval);
685}
686
687
688
689/**
690 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
691 * Seeds the random-number generator, loads important modules, checks the sanity
692 * of the user's Linux distribution, and deletes logfile.
693 * @param bkpinfo The backup information structure. Will be initialized.
694 * @return number of errors (0 for success)
695 */
696int pre_param_configuration()
697{
698    int res = 0;
699    char *tmp = NULL;
700
701    make_hole_for_dir(MNT_CDROM);
702    assert(bkpinfo != NULL);
703    srandom((unsigned long) (time(NULL)));
704    insmod_crucial_modules();
705    if (bkpinfo->disaster_recovery) {
706        if (!does_nonMS_partition_exist()) {
707            fatal_error
708                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
709        }
710    }
711
712    mr_asprintf(&tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
713    run_program_and_log_output(tmp, FALSE);
714    paranoid_free(tmp);
715    if (find_and_store_mondoarchives_home(g_mondo_home)) {
716        fprintf(stderr,
717                "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");
718        res++;
719        return (res);
720    }
721    res += some_basic_system_sanity_checks();
722    if (res) {
723        log_it("Your distribution did not pass Mondo's sanity test.");
724    }
725    g_current_media_number = 1;
726    bkpinfo->postnuke_tarball[0] = bkpinfo->netfs_mount[0] = '\0';
727    return (res);
728}
729
730/*  From busybox under GPLv2 */
731#ifndef HAVE_MKDTEMP
732/* This is now actually part of POSIX.1, but was only added in 2008 */
733char* mkdtemp(char *template)
734{
735    if (mktemp(template) == NULL || mkdir(template, 0700) != 0)
736        return NULL;
737    return template;
738}
739#endif
740
741void setup_tmpdir(char *path) {
742
743    char *tmp = NULL;
744    char *p = NULL;
745
746    if ((bkpinfo->tmpdir != NULL) && (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL)) {
747        /* purging a potential old tmpdir */
748        log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
749        if (chdir("/tmp")) {
750            // FIXME
751        }
752        mr_asprintf(&tmp,"rm -Rf %s",bkpinfo->tmpdir);
753        paranoid_system(tmp);
754        paranoid_free(tmp);
755    }
756
757    /* Always take in account env first */
758    if (getenv("TMPDIR")) {
759        mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
760    } else if (getenv("TMP")) {
761        mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
762    } else if (path != NULL) {
763        mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", path);
764    } else {
765        mr_asprintf(&tmp, "/tmp/mondo.tmp.XXXXXX");
766    }
767    p = mkdtemp(tmp);
768    if (p == NULL) {
769        log_it("Failed to create global tmp directory %s for Mondo.",tmp);
770        finish(-1);
771    }
772    strcpy(bkpinfo->tmpdir,p);
773    paranoid_free(tmp);
774}
775
776
777/**
778 * Reset all fields of the backup information structure to a sensible default.
779 * @param bkpinfo The @c bkpinfo to reset.
780 */
781void reset_bkpinfo()
782{
783    int i;
784
785    log_msg(1, "Hi");
786    assert(bkpinfo != NULL);
787    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
788
789    bkpinfo->media_device[0] = '\0';
790    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
791        bkpinfo->media_size[i] = -1;
792    }
793    bkpinfo->boot_loader = '\0';
794    bkpinfo->boot_device[0] = '\0';
795    bkpinfo->zip_exe[0] = '\0';
796    bkpinfo->zip_suffix[0] = '\0';
797    bkpinfo->image_devs[0] = '\0';
798    bkpinfo->compression_level = 3;
799    bkpinfo->use_lzo = FALSE;
800    bkpinfo->use_gzip = FALSE;
801    bkpinfo->do_not_compress_these[0] = '\0';
802    bkpinfo->verify_data = FALSE;
803    bkpinfo->backup_data = FALSE;
804    bkpinfo->restore_data = FALSE;
805    bkpinfo->use_star = FALSE;
806    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
807    bkpinfo->disaster_recovery =
808        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
809    if (bkpinfo->disaster_recovery) {
810        strcpy(bkpinfo->isodir, "/");
811    } else {
812        strcpy(bkpinfo->isodir, MONDO_CACHE);
813    }
814    strcpy(bkpinfo->prefix, STD_PREFIX);
815    sensibly_set_tmpdir_and_scratchdir();
816
817    bkpinfo->optimal_set_size = 0;
818    strcpy(bkpinfo->include_paths, "/");
819    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
820    bkpinfo->include_paths[0] = '\0';
821    bkpinfo->exclude_devs = NULL;
822    bkpinfo->restore_path[0] = '\0';
823    bkpinfo->call_before_iso[0] = '\0';
824    bkpinfo->call_make_iso[0] = '\0';
825    bkpinfo->call_burn_iso[0] = '\0';
826    bkpinfo->call_after_iso[0] = '\0';
827    bkpinfo->kernel_path[0] = '\0';
828    bkpinfo->netfs_mount[0] = '\0';
829    bkpinfo->netfs_proto = NULL;
830    bkpinfo->netfs_user = NULL;
831    bkpinfo->netfs_remote_dir[0] = '\0';
832    bkpinfo->exclude_paths = NULL;
833    bkpinfo->subdir = NULL;
834    bkpinfo->postnuke_tarball[0] = '\0';
835    bkpinfo->wipe_media_first = FALSE;
836    bkpinfo->differential = 0;
837    bkpinfo->please_dont_eject = FALSE;
838    bkpinfo->cdrw_speed = 0;
839    bkpinfo->manual_cd_tray = FALSE;
840    bkpinfo->nonbootable_backup = FALSE;
841    bkpinfo->make_cd_use_lilo = FALSE;
842    bkpinfo->use_obdr = FALSE;
843    bkpinfo->restore_mode = interactive;
844}
845
846
847
848
849/**
850 * Get the remaining free space (in MB) on @p partition.
851 * @param partition The partition to check free space on (either a device or a mountpoint).
852 * @return The free space on @p partition, in MB.
853 */
854long free_space_on_given_partition(char *partition)
855{
856    char *out_sz = NULL;
857    char *command = NULL;
858    long res;
859
860    assert_string_is_neither_NULL_nor_zerolength(partition);
861
862    mr_asprintf(&command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
863    if (system(command)) {
864        mr_free(command);
865        return (-1);
866    }                           // partition does not exist
867    mr_free(command);
868
869    mr_asprintf(&command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
870            partition);
871    mr_asprintf(&out_sz, "%s", call_program_and_get_last_line_of_output(command));
872    mr_free(command);
873
874    if (strlen(out_sz) == 0) {
875        mr_free(out_sz);
876        return (-1);
877    }                           // error within df, probably
878    res = atol(out_sz);
879    mr_free(out_sz);
880    return (res);
881}
882
883
884
885/**
886 * Check the user's system for sanity. Checks performed:
887 * - make sure user has enough RAM (32mb required, 64mb recommended)
888 * - make sure user has enough free space in @c /
889 * - check kernel for ramdisk support
890 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
891 * - make sure CD-ROM is unmounted
892 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
893 *
894 * @return number of problems with the user's setup (0 for success)
895 */
896int some_basic_system_sanity_checks()
897{
898
899    /*@ buffers ************ */
900    char *tmp = NULL;
901
902    /*@ int's *************** */
903    int retval = 0;
904
905    mvaddstr_and_log_it(g_currentY, 0,
906                        "Checking sanity of your Linux distribution");
907#ifndef __FreeBSD__
908    if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
909        && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
910        log_it
911            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
912        run_program_and_log_output
913            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
914    }
915    mr_asprintf(&tmp, "%s",
916           call_program_and_get_last_line_of_output
917           ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
918    if (atol(tmp) < 35000) {
919        retval++;
920        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
921    }
922    if (atol(tmp) < 66000) {
923        log_to_screen
924            ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
925    }
926    mr_free(tmp);
927#endif
928
929    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
930        retval++;
931        log_to_screen
932            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
933        fatal_error
934            ("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. :)");
935    }
936#ifndef __FreeBSD__
937    if (run_program_and_log_output
938        ("grep ramdisk /proc/devices", FALSE)) {
939        /* Some SuSE have ramdisk as modules, so insert it first, then test again */
940        run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
941        if (run_program_and_log_output
942            ("grep ramdisk /proc/devices", FALSE)) {
943            if (!ask_me_yes_or_no
944                ("Your kernel has no ramdisk support. That's mind-numbingly stupid but I'll allow it if you're planning to use a failsafe kernel. Are you?"))
945            {
946                //          retval++;
947                log_to_screen
948                    ("It looks as if your kernel lacks ramdisk and initrd support.");
949                log_to_screen
950                    ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
951            }
952        }
953    }
954#endif
955    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
956    if (system("which genisoimage > /dev/null 2> /dev/null")) {
957        retval += whine_if_not_found("mkisofs");
958    }
959    if (system("which wodim > /dev/null 2> /dev/null")) {
960        retval += whine_if_not_found("cdrecord");
961    }
962    retval += whine_if_not_found("bzip2");
963    retval += whine_if_not_found("gzip");
964    retval += whine_if_not_found("awk");
965    retval += whine_if_not_found("md5sum");
966    retval += whine_if_not_found("strings");
967    retval += whine_if_not_found("mindi");
968    retval += whine_if_not_found("buffer");
969
970    // abort if Windows partition but no ms-sys and parted
971    if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
972        log_to_screen("I think you have a Windows 9x partition.");
973        retval += whine_if_not_found("parted");
974    }
975
976    if (!find_home_of_exe("cmp")) {
977        whine_if_not_found("cmp");
978    }
979    run_program_and_log_output
980        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
981    mr_asprintf(&tmp, "%s",
982           call_program_and_get_last_line_of_output
983           ("mount | grep -E \"cdr(om|w)\""));
984    if (strcmp("", tmp)) {
985        if (strstr(tmp, "autofs")) {
986            log_to_screen
987                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
988            log_to_screen
989                ("if a CD actually is inserted. If a CD is inserted, please");
990            log_to_screen("eject it. Thank you.");
991            log_it
992                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
993        } else
994            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
995            retval++;
996            mr_free(tmp);
997            fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
998        }
999    }
1000    mr_free(tmp);
1001
1002    run_program_and_log_output("cat /etc/fstab", 5);
1003#ifdef __FreeBSD__
1004    run_program_and_log_output("vinum printconfig", 5);
1005#else
1006    run_program_and_log_output("cat /etc/raidtab", 5);
1007#endif
1008
1009    if (run_program_and_log_output("mindi -V", 1)) {
1010        log_to_screen("Could not ascertain mindi's version number.");
1011        log_to_screen
1012            ("You have not installed Mondo and/or Mindi properly.");
1013        log_to_screen("Please uninstall and reinstall them both.");
1014        fatal_error("Please reinstall Mondo and Mindi.");
1015    }
1016    mr_asprintf(&tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1017    if (run_program_and_log_output(tmp, 5)) {
1018        mr_free(tmp);
1019        mr_asprintf(&tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1020        log_to_screen(tmp);
1021        log_to_screen
1022            ("Please run that command by hand and examine /var/log/mindi.log");
1023        log_to_screen
1024            ("for more information. Perhaps your /etc/fstab file is insane.");
1025        log_to_screen
1026            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1027        retval++;
1028    }
1029    mr_free(tmp);
1030
1031    if (!run_program_and_log_output("parted2fdisk -l 2>/dev/null | grep -i raid", 1)
1032        && !does_file_exist("/etc/raidtab")) {
1033        log_to_screen
1034            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1035        create_raidtab_from_mdstat(MDSTAT_FILE,"/etc/raidtab");
1036    }
1037
1038    if (retval) {
1039        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1040    } else {
1041        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1042    }
1043    return (retval);
1044}
1045
1046/**
1047 * Retrieve the line containing @p label from the config file.
1048 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1049 * @param label What to read from the file.
1050 * @param value Where to put it.
1051 * @return 0 for success, 1 for failure.
1052 */
1053int read_cfg_var(char *config_file, char *label, char *value)
1054{
1055    /*@ buffer ****************************************************** */
1056    char *command = NULL;
1057    char *tmp = NULL;
1058
1059    /*@ end vars *************************************************** */
1060
1061    assert_string_is_neither_NULL_nor_zerolength(config_file);
1062    assert_string_is_neither_NULL_nor_zerolength(label);
1063    if (!does_file_exist(config_file)) {
1064        mr_asprintf(&tmp, "(read_cfg_var) Cannot find %s config file",
1065                config_file);
1066        log_to_screen(tmp);
1067        mr_free(tmp);
1068
1069        value[0] = '\0';
1070        return (1);
1071    } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1072        log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1073        return (0);
1074    } else {
1075        mr_asprintf(&command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1076                label, config_file);
1077        strcpy(value, call_program_and_get_last_line_of_output(command));
1078        mr_free(command);
1079
1080        if (strlen(value) == 0) {
1081            return (1);
1082        } else {
1083            return (0);
1084        }
1085    }
1086}
1087
1088
1089
1090/**
1091 * Remount @c supermount if it was unmounted earlier.
1092 */
1093void remount_supermounts_if_necessary()
1094{
1095    if (g_remount_cdrom_at_end) {
1096        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1097    }
1098    if (g_remount_floppy_at_end) {
1099        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1100    }
1101}
1102
1103/**
1104 * Unmount @c supermount if it's mounted.
1105 */
1106void unmount_supermounts_if_necessary()
1107{
1108    if (run_program_and_log_output
1109        ("mount | grep cdrom | grep super", FALSE) == 0) {
1110        g_remount_cdrom_at_end = TRUE;
1111        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1112    }
1113    if (run_program_and_log_output
1114        ("mount | grep floppy | grep super", FALSE) == 0) {
1115        g_remount_floppy_at_end = TRUE;
1116        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1117    }
1118}
1119
1120/**
1121 * Whether we had to stop autofs (if so, restart it at end).
1122 */
1123bool g_autofs_stopped = FALSE;
1124
1125/**
1126 * Path to the autofs initscript ("" if none exists).
1127 */
1128char g_autofs_exe[MAX_STR_LEN];
1129
1130/**
1131 * Autofs initscript in Xandros Linux distribution.
1132 */
1133#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1134
1135/**
1136 * Autofs initscript in most Linux distributions.
1137 */
1138#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1139
1140/**
1141 * If autofs is mounted, stop it (restart at end).
1142 */
1143void stop_autofs_if_necessary()
1144{
1145    char *tmp = NULL;
1146
1147    g_autofs_exe[0] = '\0';
1148    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1149        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1150    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1151        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1152    }
1153
1154    if (!g_autofs_exe[0]) {
1155        log_msg(3, "No autofs detected.");
1156    } else {
1157        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1158        // FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1159        mr_asprintf(&tmp, "%s stop", g_autofs_exe);
1160        if (run_program_and_log_output(tmp, 2)) {
1161            log_it("Failed to stop autofs - I assume it wasn't running");
1162        } else {
1163            g_autofs_stopped = TRUE;
1164            log_it("Stopped autofs OK");
1165        }
1166        mr_free(tmp);
1167    }
1168}
1169
1170/**
1171 * If autofs was stopped earlier, restart it.
1172 */
1173void restart_autofs_if_necessary()
1174{
1175    char *tmp = NULL;
1176
1177    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1178        log_msg(3, "No autofs detected.");
1179        return;
1180    }
1181    mr_asprintf(&tmp, "%s start", g_autofs_exe);
1182    if (run_program_and_log_output(tmp, 2)) {
1183        log_it("Failed to start autofs");
1184    } else {
1185        g_autofs_stopped = FALSE;
1186        log_it("Started autofs OK");
1187    }
1188    mr_free(tmp);
1189}
1190
1191
1192/**
1193 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1194 */
1195void mount_boot_if_necessary()
1196{
1197    char *tmp = NULL;
1198    char *command = NULL;
1199
1200    log_msg(1, "Started sub");
1201    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1202    g_boot_mountpt[0] = '\0';
1203    log_msg(4, "Done. Great. Seeting command to something");
1204    mr_asprintf(&command, "%s",
1205           "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[   ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1206    log_msg(4, "Cool. Command = '%s'", command);
1207    mr_asprintf(&tmp, "%s", call_program_and_get_last_line_of_output(command));
1208    mr_free(command);
1209
1210    log_msg(4, "tmp = '%s'", tmp);
1211    if (tmp[0]) {
1212        log_it("/boot is at %s according to /etc/fstab", tmp);
1213        mr_asprintf(&command, "mount | grep -Ew '/boot'");
1214        mr_free(tmp);
1215        mr_asprintf(&tmp, call_program_and_get_last_line_of_output(command));
1216        mr_free(command);
1217
1218        if (!strcmp(tmp,"")) {
1219            if (((strstr(tmp, "LABEL=") != NULL) || (strstr(tmp,"UUID=")) != NULL)) {
1220                if (!run_program_and_log_output("mount /boot", 5)) {
1221                    strcpy(g_boot_mountpt, "/boot");
1222                    log_msg(1, "Mounted /boot");
1223                } else {
1224                    log_it("...ignored cos it's a label or uuid :-)");
1225                }
1226            } else {
1227                mr_asprintf(&command, "mount | grep -E '^%s'", tmp);
1228                log_msg(3, "command = %s", command);
1229                if (run_program_and_log_output(command, 5)) {
1230                    strcpy(g_boot_mountpt, tmp);
1231                    mr_free(tmp);
1232                    mr_asprintf(&tmp,
1233                            "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1234                            g_boot_mountpt);
1235                    log_it(tmp);
1236                    mr_free(tmp);
1237
1238                    mr_asprintf(&tmp, "mount %s", g_boot_mountpt);
1239                    if (run_program_and_log_output(tmp, 5)) {
1240                        g_boot_mountpt[0] = '\0';
1241                        log_msg(1, "Plan B");
1242                        if (!run_program_and_log_output("mount /boot", 5)) {
1243                            strcpy(g_boot_mountpt, "/boot");
1244                            log_msg(1, "Plan B worked");
1245                        } else {
1246                            log_msg(1,
1247                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1248                        }
1249                    }
1250                    mr_free(tmp);
1251                }
1252                mr_free(command);
1253            }
1254        }
1255    }
1256    log_msg(1, "Ended sub");
1257}
1258
1259
1260/**
1261 * If we mounted /boot earlier, unmount it.
1262 */
1263void unmount_boot_if_necessary()
1264{
1265    char *tmp = NULL;
1266
1267    log_msg(3, "starting");
1268    if (g_boot_mountpt[0]) {
1269        mr_asprintf(&tmp, "umount %s", g_boot_mountpt);
1270        if (run_program_and_log_output(tmp, 5)) {
1271            log_it("WARNING - unable to unmount /boot");
1272        }
1273        mr_free(tmp);
1274    }
1275    log_msg(3, "leaving");
1276}
1277
1278
1279
1280/**
1281 * Write a line to a configuration file. Writes a line of the form,
1282 * @c label @c value.
1283 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1284 * @param label What to call this bit of data you're writing.
1285 * @param value The bit of data you're writing.
1286 * @return 0 for success, 1 for failure.
1287 */
1288int write_cfg_var(char *config_file, char *label, char *value)
1289{
1290    /*@ buffers ***************************************************** */
1291    char *command = NULL;
1292    char *tempfile = NULL;
1293    char *tmp = NULL;
1294
1295
1296    /*@ end vars *************************************************** */
1297    assert_string_is_neither_NULL_nor_zerolength(config_file);
1298    assert_string_is_neither_NULL_nor_zerolength(label);
1299    assert(value != NULL);
1300    if (!does_file_exist(config_file)) {
1301        mr_asprintf(&tmp, "(write_cfg_file) Cannot find %s config file",
1302                config_file);
1303        log_to_screen(tmp);
1304        mr_free(tmp);
1305        return (1);
1306    }
1307    mr_asprintf(&tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1308    if (does_file_exist(config_file)) {
1309        mr_asprintf(&command, "grep -vE '^%s .*$' %s > %s",
1310                label, config_file, tempfile);
1311        paranoid_system(command);
1312        mr_free(command);
1313    }
1314    mr_asprintf(&command, "echo \"%s %s\" >> %s", label, value, tempfile);
1315    paranoid_system(command);
1316    mr_free(command);
1317
1318    mr_asprintf(&command, "mv -f %s %s", tempfile, config_file);
1319    paranoid_system(command);
1320    mr_free(command);
1321    unlink(tempfile);
1322    mr_free(tempfile);
1323    return (0);
1324}
1325
1326
1327/**
1328 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1329 * information to the logfile.
1330 */
1331void standard_log_debug_msg(int debug_level, const char *szFile,
1332                            const char *szFunction, int nLine,
1333                            const char *fmt, ...)
1334{
1335    va_list args;
1336    int i;
1337    static int depth = 0;
1338    FILE *fout;
1339
1340    if (depth > 5) {
1341        depth--;
1342        return;
1343    }
1344    depth++;
1345
1346    if (debug_level <= g_loglevel) {
1347        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1348            return;
1349        }       // fatal_error("Failed to openout to logfile - sheesh..."); }
1350
1351        // add tabs to distinguish log levels
1352        if (debug_level > 0) {
1353            for (i = 1; i < debug_level; i++)
1354                fprintf(fout, "\t");
1355            if (getpid() == g_main_pid)
1356                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1357            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1358                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1359            else
1360                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1361        }
1362        va_start(args, fmt);
1363        vfprintf(fout, fmt, args);
1364        va_end(args);
1365
1366        // do not slow down the progran if standard debug level
1367        // must be enabled: if no flush, the log won't be up-to-date if there
1368        // is a segfault
1369        //if (g_dwDebugLevel != 1)
1370
1371        fprintf(fout, "\n");
1372        paranoid_fclose(fout);
1373    }
1374    depth--;
1375}
1376
1377/**
1378 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1379 */
1380void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1381                       ...) = standard_log_debug_msg;
1382
1383
1384/**
1385 * If @p y, malloc @p x, else free @p x.
1386 * @bug This function seems orphaned. Please remove.
1387 */
1388#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1389
1390/**
1391 * Allocate or free important globals, depending on @p mal.
1392 * @param mal If TRUE, malloc; if FALSE, free.
1393 */
1394void do_libmondo_global_strings_thing(int mal)
1395{
1396    if (mal) {
1397        malloc_string(g_boot_mountpt);
1398        malloc_string(g_mondo_home);
1399        /*
1400        malloc_string(g_tmpfs_mountpt);
1401        */
1402        malloc_string(g_serial_string);
1403        malloc_string(g_magicdev_command);
1404    } else {
1405        paranoid_free(g_boot_mountpt);
1406        paranoid_free(g_mondo_home);
1407        /*
1408        paranoid_free(g_tmpfs_mountpt);
1409        */
1410        paranoid_free(g_serial_string);
1411        paranoid_free(g_magicdev_command);
1412
1413    }
1414
1415    /*
1416       char**list_of_arrays[] = {
1417       &g_boot_mountpt,
1418       &g_mondo_home,
1419       &g_tmpfs_mountpt,
1420       &g_serial_string,
1421       &g_magicdev_command,
1422       NULL};
1423
1424       char**ppcurr;
1425       int i;
1426
1427       for(i=0;list_of_arrays[i];i++)
1428       {
1429       log_msg(5, "Allocating %d", i);
1430       ppcurr = list_of_arrays[i];
1431       if (mal)
1432       { *ppcurr = malloc(MAX_STR_LEN); }
1433       else
1434       {
1435       if (*ppcurr)
1436       {
1437       free(*ppcurr);
1438       }
1439       }
1440       }
1441       log_msg(5, "Returning");
1442     */
1443}
1444
1445/**
1446 * Allocate important globals.
1447 * @see do_libmondo_global_strings_thing
1448 */
1449void malloc_libmondo_global_strings(void)
1450{
1451    do_libmondo_global_strings_thing(1);
1452}
1453
1454/**
1455 * Free important globals.
1456 * @see do_libmondo_global_strings_thing
1457 */
1458void free_libmondo_global_strings(void)
1459{
1460    do_libmondo_global_strings_thing(0);
1461}
1462
1463
1464
1465/**
1466 * Stop @c magicdev if it's running.
1467 * The command used to start it is saved in @p g_magicdev_command.
1468 */
1469void stop_magicdev_if_necessary()
1470{
1471    strcpy(g_magicdev_command,
1472           call_program_and_get_last_line_of_output
1473           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1474    if (g_magicdev_command[0]) {
1475        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1476        paranoid_system("killall magicdev");
1477    }
1478}
1479
1480
1481/**
1482 * Restart magicdev if it was stopped.
1483 */
1484void restart_magicdev_if_necessary()
1485{
1486    char *tmp = NULL;
1487
1488    if (g_magicdev_command && g_magicdev_command[0]) {
1489        mr_asprintf(&tmp, "%s &", g_magicdev_command);
1490        paranoid_system(tmp);
1491        mr_free(tmp);
1492    }
1493}
1494
1495/* @} - end of utilityGroup */
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