source: branches/3.0/mondo/src/common/libmondo-tools.c @ 2926

Last change on this file since 2926 was 2926, checked in by bruno, 8 years ago

-mondoarchive now exists if the mt command is missing when needed

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1/*
2   $Id: libmondo-tools.c 2926 2011-12-22 23:02:31Z 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 2926 2011-12-22 23:02:31Z 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    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
328    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
329#else
330    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
730void setup_tmpdir(char *path) {
731
732    char *tmp = NULL;
733    char *p = NULL;
734
735    if ((bkpinfo->tmpdir != NULL) && (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL)) {
736        /* purging a potential old tmpdir */
737        log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
738        chdir("/tmp");
739        mr_asprintf(&tmp,"rm -Rf %s",bkpinfo->tmpdir);
740        (void)system(tmp);
741        paranoid_free(tmp);
742    }
743
744    /* Always take in account env first */
745    if (getenv("TMPDIR")) {
746        mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
747    } else if (getenv("TMP")) {
748        mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
749    } else if (path != NULL) {
750        mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", path);
751    } else {
752        mr_asprintf(&tmp, "/tmp/mondo.tmp.XXXXXX");
753    }
754    p = mkdtemp(tmp);
755    if (p == NULL) {
756        log_it("Failed to create global tmp directory %s for Mondo.",tmp);
757        finish(-1);
758    }
759    strcpy(bkpinfo->tmpdir,p);
760    paranoid_free(tmp);
761}
762
763
764/**
765 * Reset all fields of the backup information structure to a sensible default.
766 * @param bkpinfo The @c bkpinfo to reset.
767 */
768void reset_bkpinfo()
769{
770    int i;
771
772    log_msg(1, "Hi");
773    assert(bkpinfo != NULL);
774    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
775
776    bkpinfo->media_device[0] = '\0';
777    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
778        bkpinfo->media_size[i] = -1;
779    }
780    bkpinfo->boot_loader = '\0';
781    bkpinfo->boot_device[0] = '\0';
782    bkpinfo->zip_exe[0] = '\0';
783    bkpinfo->zip_suffix[0] = '\0';
784    bkpinfo->image_devs[0] = '\0';
785    bkpinfo->compression_level = 3;
786    bkpinfo->use_lzo = FALSE;
787    bkpinfo->use_gzip = FALSE;
788    bkpinfo->do_not_compress_these[0] = '\0';
789    bkpinfo->verify_data = FALSE;
790    bkpinfo->backup_data = FALSE;
791    bkpinfo->restore_data = FALSE;
792    bkpinfo->use_star = FALSE;
793    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
794    bkpinfo->disaster_recovery =
795        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
796    if (bkpinfo->disaster_recovery) {
797        strcpy(bkpinfo->isodir, "/");
798    } else {
799        strcpy(bkpinfo->isodir, MONDO_CACHE);
800    }
801    strcpy(bkpinfo->prefix, STD_PREFIX);
802    sensibly_set_tmpdir_and_scratchdir();
803
804    bkpinfo->optimal_set_size = 0;
805    strcpy(bkpinfo->include_paths, "/");
806    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
807    bkpinfo->include_paths[0] = '\0';
808    bkpinfo->exclude_devs = NULL;
809    bkpinfo->restore_path[0] = '\0';
810    bkpinfo->call_before_iso[0] = '\0';
811    bkpinfo->call_make_iso[0] = '\0';
812    bkpinfo->call_burn_iso[0] = '\0';
813    bkpinfo->call_after_iso[0] = '\0';
814    bkpinfo->kernel_path[0] = '\0';
815    bkpinfo->netfs_mount[0] = '\0';
816    bkpinfo->netfs_proto = NULL;
817    bkpinfo->netfs_user = NULL;
818    bkpinfo->netfs_remote_dir[0] = '\0';
819    bkpinfo->exclude_paths = NULL;
820    bkpinfo->subdir = NULL;
821    bkpinfo->postnuke_tarball[0] = '\0';
822    bkpinfo->wipe_media_first = FALSE;
823    bkpinfo->differential = 0;
824    bkpinfo->please_dont_eject = FALSE;
825    bkpinfo->cdrw_speed = 0;
826    bkpinfo->manual_cd_tray = FALSE;
827    bkpinfo->nonbootable_backup = FALSE;
828    bkpinfo->make_cd_use_lilo = FALSE;
829    bkpinfo->use_obdr = FALSE;
830    bkpinfo->restore_mode = interactive;
831}
832
833
834
835
836/**
837 * Get the remaining free space (in MB) on @p partition.
838 * @param partition The partition to check free space on (either a device or a mountpoint).
839 * @return The free space on @p partition, in MB.
840 */
841long free_space_on_given_partition(char *partition)
842{
843    char *out_sz = NULL;
844    char *command = NULL;
845    long res;
846
847    assert_string_is_neither_NULL_nor_zerolength(partition);
848
849    mr_asprintf(&command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
850    if (system(command)) {
851        mr_free(command);
852        return (-1);
853    }                           // partition does not exist
854    mr_free(command);
855
856    mr_asprintf(&command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
857            partition);
858    mr_asprintf(&out_sz, "%s", call_program_and_get_last_line_of_output(command));
859    mr_free(command);
860
861    if (strlen(out_sz) == 0) {
862        mr_free(out_sz);
863        return (-1);
864    }                           // error within df, probably
865    res = atol(out_sz);
866    mr_free(out_sz);
867    return (res);
868}
869
870
871
872/**
873 * Check the user's system for sanity. Checks performed:
874 * - make sure user has enough RAM (32mb required, 64mb recommended)
875 * - make sure user has enough free space in @c /
876 * - check kernel for ramdisk support
877 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
878 * - make sure CD-ROM is unmounted
879 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
880 *
881 * @return number of problems with the user's setup (0 for success)
882 */
883int some_basic_system_sanity_checks()
884{
885
886    /*@ buffers ************ */
887    char *tmp = NULL;
888
889    /*@ int's *************** */
890    int retval = 0;
891
892    mvaddstr_and_log_it(g_currentY, 0,
893                        "Checking sanity of your Linux distribution");
894#ifndef __FreeBSD__
895    if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
896        && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
897        log_it
898            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
899        run_program_and_log_output
900            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
901    }
902    mr_asprintf(&tmp, "%s",
903           call_program_and_get_last_line_of_output
904           ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
905    if (atol(tmp) < 35000) {
906        retval++;
907        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
908    }
909    if (atol(tmp) < 66000) {
910        log_to_screen
911            ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
912    }
913    mr_free(tmp);
914#endif
915
916    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
917        retval++;
918        log_to_screen
919            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
920        fatal_error
921            ("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. :)");
922    }
923#ifndef __FreeBSD__
924    if (run_program_and_log_output
925        ("grep ramdisk /proc/devices", FALSE)) {
926        /* Some SuSE have ramdisk as modules, so insert it first, then test again */
927        run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
928        if (run_program_and_log_output
929            ("grep ramdisk /proc/devices", FALSE)) {
930            if (!ask_me_yes_or_no
931                ("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?"))
932            {
933                //          retval++;
934                log_to_screen
935                    ("It looks as if your kernel lacks ramdisk and initrd support.");
936                log_to_screen
937                    ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
938            }
939        }
940    }
941#endif
942    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
943    if (system("which genisoimage > /dev/null 2> /dev/null")) {
944        retval += whine_if_not_found("mkisofs");
945    }
946    if (system("which wodim > /dev/null 2> /dev/null")) {
947        retval += whine_if_not_found("cdrecord");
948    }
949    retval += whine_if_not_found("bzip2");
950    retval += whine_if_not_found("gzip");
951    retval += whine_if_not_found("awk");
952    retval += whine_if_not_found("md5sum");
953    retval += whine_if_not_found("strings");
954    retval += whine_if_not_found("mindi");
955    retval += whine_if_not_found("buffer");
956
957    // abort if Windows partition but no ms-sys and parted
958    if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
959        log_to_screen("I think you have a Windows 9x partition.");
960        retval += whine_if_not_found("parted");
961    }
962
963    if (!find_home_of_exe("cmp")) {
964        whine_if_not_found("cmp");
965    }
966    run_program_and_log_output
967        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
968    mr_asprintf(&tmp, "%s",
969           call_program_and_get_last_line_of_output
970           ("mount | grep -E \"cdr(om|w)\""));
971    if (strcmp("", tmp)) {
972        if (strstr(tmp, "autofs")) {
973            log_to_screen
974                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
975            log_to_screen
976                ("if a CD actually is inserted. If a CD is inserted, please");
977            log_to_screen("eject it. Thank you.");
978            log_it
979                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
980        } else
981            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
982            retval++;
983            mr_free(tmp);
984            fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
985        }
986    }
987    mr_free(tmp);
988
989    run_program_and_log_output("cat /etc/fstab", 5);
990#ifdef __FreeBSD__
991    run_program_and_log_output("vinum printconfig", 5);
992#else
993    run_program_and_log_output("cat /etc/raidtab", 5);
994#endif
995
996    if (run_program_and_log_output("mindi -V", 1)) {
997        log_to_screen("Could not ascertain mindi's version number.");
998        log_to_screen
999            ("You have not installed Mondo and/or Mindi properly.");
1000        log_to_screen("Please uninstall and reinstall them both.");
1001        fatal_error("Please reinstall Mondo and Mindi.");
1002    }
1003    mr_asprintf(&tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1004    if (run_program_and_log_output(tmp, 5)) {
1005        mr_free(tmp);
1006        mr_asprintf(&tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1007        log_to_screen(tmp);
1008        log_to_screen
1009            ("Please run that command by hand and examine /var/log/mindi.log");
1010        log_to_screen
1011            ("for more information. Perhaps your /etc/fstab file is insane.");
1012        log_to_screen
1013            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1014        retval++;
1015    }
1016    mr_free(tmp);
1017
1018    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1019        && !does_file_exist("/etc/raidtab")) {
1020        log_to_screen
1021            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1022        create_raidtab_from_mdstat("/etc/raidtab");
1023    }
1024
1025    if (retval) {
1026        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1027    } else {
1028        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1029    }
1030    return (retval);
1031}
1032
1033/**
1034 * Retrieve the line containing @p label from the config file.
1035 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1036 * @param label What to read from the file.
1037 * @param value Where to put it.
1038 * @return 0 for success, 1 for failure.
1039 */
1040int read_cfg_var(char *config_file, char *label, char *value)
1041{
1042    /*@ buffer ****************************************************** */
1043    char *command = NULL;
1044    char *tmp = NULL;
1045
1046    /*@ end vars *************************************************** */
1047
1048    assert_string_is_neither_NULL_nor_zerolength(config_file);
1049    assert_string_is_neither_NULL_nor_zerolength(label);
1050    if (!does_file_exist(config_file)) {
1051        mr_asprintf(&tmp, "(read_cfg_var) Cannot find %s config file",
1052                config_file);
1053        log_to_screen(tmp);
1054        mr_free(tmp);
1055
1056        value[0] = '\0';
1057        return (1);
1058    } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1059        log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1060        return (0);
1061    } else {
1062        mr_asprintf(&command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1063                label, config_file);
1064        strcpy(value, call_program_and_get_last_line_of_output(command));
1065        mr_free(command);
1066
1067        if (strlen(value) == 0) {
1068            return (1);
1069        } else {
1070            return (0);
1071        }
1072    }
1073}
1074
1075
1076
1077/**
1078 * Remount @c supermount if it was unmounted earlier.
1079 */
1080void remount_supermounts_if_necessary()
1081{
1082    if (g_remount_cdrom_at_end) {
1083        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1084    }
1085    if (g_remount_floppy_at_end) {
1086        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1087    }
1088}
1089
1090/**
1091 * Unmount @c supermount if it's mounted.
1092 */
1093void unmount_supermounts_if_necessary()
1094{
1095    if (run_program_and_log_output
1096        ("mount | grep cdrom | grep super", FALSE) == 0) {
1097        g_remount_cdrom_at_end = TRUE;
1098        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1099    }
1100    if (run_program_and_log_output
1101        ("mount | grep floppy | grep super", FALSE) == 0) {
1102        g_remount_floppy_at_end = TRUE;
1103        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1104    }
1105}
1106
1107/**
1108 * Whether we had to stop autofs (if so, restart it at end).
1109 */
1110bool g_autofs_stopped = FALSE;
1111
1112/**
1113 * Path to the autofs initscript ("" if none exists).
1114 */
1115char g_autofs_exe[MAX_STR_LEN];
1116
1117/**
1118 * Autofs initscript in Xandros Linux distribution.
1119 */
1120#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1121
1122/**
1123 * Autofs initscript in most Linux distributions.
1124 */
1125#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1126
1127/**
1128 * If autofs is mounted, stop it (restart at end).
1129 */
1130void stop_autofs_if_necessary()
1131{
1132    char *tmp = NULL;
1133
1134    g_autofs_exe[0] = '\0';
1135    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1136        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1137    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1138        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1139    }
1140
1141    if (!g_autofs_exe[0]) {
1142        log_msg(3, "No autofs detected.");
1143    } else {
1144        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1145        // FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1146        mr_asprintf(&tmp, "%s stop", g_autofs_exe);
1147        if (run_program_and_log_output(tmp, 2)) {
1148            log_it("Failed to stop autofs - I assume it wasn't running");
1149        } else {
1150            g_autofs_stopped = TRUE;
1151            log_it("Stopped autofs OK");
1152        }
1153        mr_free(tmp);
1154    }
1155}
1156
1157/**
1158 * If autofs was stopped earlier, restart it.
1159 */
1160void restart_autofs_if_necessary()
1161{
1162    char *tmp = NULL;
1163
1164    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1165        log_msg(3, "No autofs detected.");
1166        return;
1167    }
1168    mr_asprintf(&tmp, "%s start", g_autofs_exe);
1169    if (run_program_and_log_output(tmp, 2)) {
1170        log_it("Failed to start autofs");
1171    } else {
1172        g_autofs_stopped = FALSE;
1173        log_it("Started autofs OK");
1174    }
1175    mr_free(tmp);
1176}
1177
1178
1179/**
1180 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1181 */
1182void mount_boot_if_necessary()
1183{
1184    char *tmp = NULL;
1185    char *command = NULL;
1186
1187    log_msg(1, "Started sub");
1188    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1189    g_boot_mountpt[0] = '\0';
1190    log_msg(4, "Done. Great. Seeting command to something");
1191    mr_asprintf(&command, "%s",
1192           "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[   ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1193    log_msg(4, "Cool. Command = '%s'", command);
1194    mr_asprintf(&tmp, "%s", call_program_and_get_last_line_of_output(command));
1195    mr_free(command);
1196
1197    log_msg(4, "tmp = '%s'", tmp);
1198    if (tmp[0]) {
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        mr_asprintf(&tmp, call_program_and_get_last_line_of_output(command));
1203        mr_free(command);
1204
1205        if (!strcmp(tmp,"")) {
1206            if (((strstr(tmp, "LABEL=") != NULL) || (strstr(tmp,"UUID=")) != NULL)) {
1207                if (!run_program_and_log_output("mount /boot", 5)) {
1208                    strcpy(g_boot_mountpt, "/boot");
1209                    log_msg(1, "Mounted /boot");
1210                } else {
1211                    log_it("...ignored cos it's a label or uuid :-)");
1212                }
1213            } else {
1214                mr_asprintf(&command, "mount | grep -E '^%s'", tmp);
1215                log_msg(3, "command = %s", command);
1216                if (run_program_and_log_output(command, 5)) {
1217                    strcpy(g_boot_mountpt, tmp);
1218                    mr_free(tmp);
1219                    mr_asprintf(&tmp,
1220                            "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1221                            g_boot_mountpt);
1222                    log_it(tmp);
1223                    mr_free(tmp);
1224
1225                    mr_asprintf(&tmp, "mount %s", g_boot_mountpt);
1226                    if (run_program_and_log_output(tmp, 5)) {
1227                        g_boot_mountpt[0] = '\0';
1228                        log_msg(1, "Plan B");
1229                        if (!run_program_and_log_output("mount /boot", 5)) {
1230                            strcpy(g_boot_mountpt, "/boot");
1231                            log_msg(1, "Plan B worked");
1232                        } else {
1233                            log_msg(1,
1234                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1235                        }
1236                    }
1237                    mr_free(tmp);
1238                }
1239                mr_free(command);
1240            }
1241        }
1242    }
1243    log_msg(1, "Ended sub");
1244}
1245
1246
1247/**
1248 * If we mounted /boot earlier, unmount it.
1249 */
1250void unmount_boot_if_necessary()
1251{
1252    char *tmp = NULL;
1253
1254    log_msg(3, "starting");
1255    if (g_boot_mountpt[0]) {
1256        mr_asprintf(&tmp, "umount %s", g_boot_mountpt);
1257        if (run_program_and_log_output(tmp, 5)) {
1258            log_it("WARNING - unable to unmount /boot");
1259        }
1260        mr_free(tmp);
1261    }
1262    log_msg(3, "leaving");
1263}
1264
1265
1266
1267/**
1268 * Write a line to a configuration file. Writes a line of the form,
1269 * @c label @c value.
1270 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1271 * @param label What to call this bit of data you're writing.
1272 * @param value The bit of data you're writing.
1273 * @return 0 for success, 1 for failure.
1274 */
1275int write_cfg_var(char *config_file, char *label, char *value)
1276{
1277    /*@ buffers ***************************************************** */
1278    char *command = NULL;
1279    char *tempfile = NULL;
1280    char *tmp = NULL;
1281
1282
1283    /*@ end vars *************************************************** */
1284    assert_string_is_neither_NULL_nor_zerolength(config_file);
1285    assert_string_is_neither_NULL_nor_zerolength(label);
1286    assert(value != NULL);
1287    if (!does_file_exist(config_file)) {
1288        mr_asprintf(&tmp, "(write_cfg_file) Cannot find %s config file",
1289                config_file);
1290        log_to_screen(tmp);
1291        mr_free(tmp);
1292        return (1);
1293    }
1294    mr_asprintf(&tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1295    if (does_file_exist(config_file)) {
1296        mr_asprintf(&command, "grep -vE '^%s .*$' %s > %s",
1297                label, config_file, tempfile);
1298        paranoid_system(command);
1299        mr_free(command);
1300    }
1301    mr_asprintf(&command, "echo \"%s %s\" >> %s", label, value, tempfile);
1302    paranoid_system(command);
1303    mr_free(command);
1304
1305    mr_asprintf(&command, "mv -f %s %s", tempfile, config_file);
1306    paranoid_system(command);
1307    mr_free(command);
1308    unlink(tempfile);
1309    mr_free(tempfile);
1310    return (0);
1311}
1312
1313
1314/**
1315 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1316 * information to the logfile.
1317 */
1318void standard_log_debug_msg(int debug_level, const char *szFile,
1319                            const char *szFunction, int nLine,
1320                            const char *fmt, ...)
1321{
1322    va_list args;
1323    int i;
1324    static int depth = 0;
1325    FILE *fout;
1326
1327    if (depth > 5) {
1328        depth--;
1329        return;
1330    }
1331    depth++;
1332
1333    if (debug_level <= g_loglevel) {
1334        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1335            return;
1336        }       // fatal_error("Failed to openout to logfile - sheesh..."); }
1337
1338        // add tabs to distinguish log levels
1339        if (debug_level > 0) {
1340            for (i = 1; i < debug_level; i++)
1341                fprintf(fout, "\t");
1342            if (getpid() == g_main_pid)
1343                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1344            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1345                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1346            else
1347                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1348        }
1349        va_start(args, fmt);
1350        vfprintf(fout, fmt, args);
1351        va_end(args);
1352
1353        // do not slow down the progran if standard debug level
1354        // must be enabled: if no flush, the log won't be up-to-date if there
1355        // is a segfault
1356        //if (g_dwDebugLevel != 1)
1357
1358        fprintf(fout, "\n");
1359        paranoid_fclose(fout);
1360    }
1361    depth--;
1362}
1363
1364/**
1365 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1366 */
1367void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1368                       ...) = standard_log_debug_msg;
1369
1370
1371/**
1372 * If @p y, malloc @p x, else free @p x.
1373 * @bug This function seems orphaned. Please remove.
1374 */
1375#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1376
1377/**
1378 * Allocate or free important globals, depending on @p mal.
1379 * @param mal If TRUE, malloc; if FALSE, free.
1380 */
1381void do_libmondo_global_strings_thing(int mal)
1382{
1383    if (mal) {
1384        malloc_string(g_boot_mountpt);
1385        malloc_string(g_mondo_home);
1386        /*
1387        malloc_string(g_tmpfs_mountpt);
1388        */
1389        malloc_string(g_serial_string);
1390        malloc_string(g_magicdev_command);
1391    } else {
1392        paranoid_free(g_boot_mountpt);
1393        paranoid_free(g_mondo_home);
1394        /*
1395        paranoid_free(g_tmpfs_mountpt);
1396        */
1397        paranoid_free(g_serial_string);
1398        paranoid_free(g_magicdev_command);
1399
1400    }
1401
1402    /*
1403       char**list_of_arrays[] = {
1404       &g_boot_mountpt,
1405       &g_mondo_home,
1406       &g_tmpfs_mountpt,
1407       &g_serial_string,
1408       &g_magicdev_command,
1409       NULL};
1410
1411       char**ppcurr;
1412       int i;
1413
1414       for(i=0;list_of_arrays[i];i++)
1415       {
1416       log_msg(5, "Allocating %d", i);
1417       ppcurr = list_of_arrays[i];
1418       if (mal)
1419       { *ppcurr = malloc(MAX_STR_LEN); }
1420       else
1421       {
1422       if (*ppcurr)
1423       {
1424       free(*ppcurr);
1425       }
1426       }
1427       }
1428       log_msg(5, "Returning");
1429     */
1430}
1431
1432/**
1433 * Allocate important globals.
1434 * @see do_libmondo_global_strings_thing
1435 */
1436void malloc_libmondo_global_strings(void)
1437{
1438    do_libmondo_global_strings_thing(1);
1439}
1440
1441/**
1442 * Free important globals.
1443 * @see do_libmondo_global_strings_thing
1444 */
1445void free_libmondo_global_strings(void)
1446{
1447    do_libmondo_global_strings_thing(0);
1448}
1449
1450
1451
1452/**
1453 * Stop @c magicdev if it's running.
1454 * The command used to start it is saved in @p g_magicdev_command.
1455 */
1456void stop_magicdev_if_necessary()
1457{
1458    strcpy(g_magicdev_command,
1459           call_program_and_get_last_line_of_output
1460           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1461    if (g_magicdev_command[0]) {
1462        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1463        paranoid_system("killall magicdev");
1464    }
1465}
1466
1467
1468/**
1469 * Restart magicdev if it was stopped.
1470 */
1471void restart_magicdev_if_necessary()
1472{
1473    char *tmp = NULL;
1474
1475    if (g_magicdev_command && g_magicdev_command[0]) {
1476        mr_asprintf(&tmp, "%s &", g_magicdev_command);
1477        paranoid_system(tmp);
1478        mr_free(tmp);
1479    }
1480}
1481
1482/* @} - end of utilityGroup */
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