source: MondoRescue/branches/2.2.10/mondo/src/common/libmondo-tools.c @ 2301

Last change on this file since 2301 was 2301, checked in by Bruno Cornec, 11 years ago
  • g_serial_string is managed dynamically
  • Property svn:keywords set to Id
File size: 38.8 KB
Line 
1/*
2   $Id: libmondo-tools.c 2301 2009-07-23 17:52:12Z 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 2301 2009-07-23 17:52:12Z bruno $";
30
31extern int g_tape_buffer_size_MB;
32extern bool g_text_mode;
33extern int g_currentY;
34extern int g_current_media_number;
35extern char *MONDO_LOGFILE;
36
37/* Reference to global bkpinfo */
38extern struct s_bkpinfo *bkpinfo;
39
40/**
41 * @addtogroup globalGroup
42 * @{
43 */
44bool g_remount_cdrom_at_end,    ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
45 g_remount_floppy_at_end;       ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
46bool g_cd_recovery;             ///< TRUE if we're making an "autonuke" backup.
47double g_kernel_version;
48
49/**
50 * The place where /boot is mounted.
51 */
52char *g_boot_mountpt = NULL;
53
54/**
55 * The location of Mondo's home directory.
56 */
57char *g_mondo_home = NULL;
58
59/**
60 * The serial string (used to differentiate between backups) of the current backup.
61 */
62char *g_serial_string = NULL;
63
64/**
65 * The location where tmpfs is mounted, or "" if it's not mounted.
66char *g_tmpfs_mountpt = NULL;
67 */
68char *g_magicdev_command = NULL;
69
70/**
71 * The default maximum level to log messages at or below.
72 */
73int g_loglevel = DEFAULT_DEBUG_LEVEL;
74
75/* @} - end of globalGroup */
76
77
78extern pid_t g_buffer_pid;
79extern pid_t g_main_pid;
80
81extern t_bkptype g_backup_media_type;
82
83extern bool am_I_in_disaster_recovery_mode(void);
84
85/*-----------------------------------------------------------*/
86
87
88/**
89 * @addtogroup utilityGroup
90 * @{
91 */
92/**
93 * Assertion handler. Prints a friendly message to the user,
94 * offering to ignore all, dump core, break to debugger,
95 * exit, or ignore. Intended to be used with an assert() macro.
96 *
97 * @param file The file in which the assertion triggered.
98 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
99 * @param line The line number of the assert() statement.
100 * @param exp The expression that failed (as a string).
101 */
102void _mondo_assert_fail(const char *file,
103                        const char *function, int line, const char *exp)
104{
105    static int ignoring_assertions = 0;
106    bool is_valid = TRUE;
107
108    log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
109           function);
110    if (ignoring_assertions) {
111        log_it("Well, the user doesn't care...");
112        return;
113    }
114#ifndef _XWIN
115    if (!g_text_mode)
116        newtSuspend();
117#endif
118    printf("ASSERTION FAILED: `%s'\n", exp);
119    printf("\tat %s:%d in %s\n\n", file, line, function);
120    printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
121    do {
122        is_valid = TRUE;
123        switch (toupper(getchar())) {
124        case 'A':               // ignore (A)ll
125            ignoring_assertions = 1;
126            break;
127        case 'B':               // a(B)ort
128            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
129            raise(SIGABRT);
130            break;              /* "can't get here" */
131        case 'D':               // (D)ebug, aka asm("int 3")
132#ifdef __IA32__
133            __asm__ __volatile__("int $3"); // break to debugger
134#endif
135            break;
136        case 'E':               // (E)xit
137            fatal_error("Failed assertion -- see above for details");
138            break;              /* "can't get here" */
139        case 'I':               // (I)gnore
140            break;
141            /* These next two work as follows:
142               the `default' catches the user's invalid choice and says so;
143               the '\n' catches the newline on the end and prints the prompt again.
144             */
145        case '\n':
146            printf
147                ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
148            break;
149        default:
150            is_valid = FALSE;
151            printf("Invalid choice.\n");
152            break;
153        }
154    } while (!is_valid);
155
156    if (ignoring_assertions) {
157        log_it("Ignoring ALL assertions from now on.");
158    } else {
159        log_it("Ignoring assertion: %s", exp);
160    }
161
162    getchar();                  // skip \n
163
164#ifndef _XWIN
165    if (!g_text_mode)
166        newtResume();
167#endif
168}
169
170/**
171 * Clean's up users' KDE desktops.
172 * @bug Details about this function are unknown.
173 */
174void clean_up_KDE_desktop_if_necessary(void)
175{
176    char *tmp;
177
178    malloc_string(tmp);
179    strcpy(tmp,
180           "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
181file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
182awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
183else { print $0;};}' $file.old  > $file ; fi ; done");
184    run_program_and_log_output(tmp, 5);
185    paranoid_free(tmp);
186}
187
188
189/**
190 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
191 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
192 *
193 * @param home_sz String to store the home directory ("" if it could not be found).
194 * @return 0 for success, nonzero for failure.
195 */
196int find_and_store_mondoarchives_home(char *home_sz)
197{
198    assert(home_sz != NULL);
199    strcpy(home_sz, MONDO_SHARE);
200    return (0);
201}
202
203
204char *get_architecture(void) {
205#ifdef __IA32__
206#   ifdef __X86_64__
207        return ("x86_64");
208#   else
209        return ("i386");
210#   endif
211#endif
212#ifdef __IA64__
213    return ("ia64");
214#endif
215    return ("unknown");
216}
217
218
219char *get_uname_m(void) {
220
221    struct utsname utsn;
222    char *tmp = NULL;
223
224    uname(&utsn);
225    mr_asprintf(&tmp, "%s", utsn.machine);
226    return (tmp);
227}
228
229
230
231double get_kernel_version(void)
232{
233    char *p, tmp[200];
234    double d;
235#ifdef __FreeBSD__
236    // JOSH - FIXME :)
237    d = 5.2;                    // :-)
238#else
239    strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
240    p = strchr(tmp, '.');
241    if (p) {
242        p = strchr(++p, '.');
243        if (p) {
244            while (*p) {
245                *p = *(p + 1);
246                p++;
247            }
248        }
249    }
250//  log_msg(1, "tmp = '%s'", tmp);
251    d = atof(tmp);
252#endif
253    log_msg(1, "g_kernel_version = %f", d);
254    return (d);
255}
256
257
258
259
260
261/**
262 * Get the current time.
263 * @return number of seconds since the epoch.
264 */
265long get_time()
266{
267    return (long) time((void *) 0);
268}
269
270
271
272
273
274
275
276/**
277 * Initialize a RAID volume structure, setting fields to zero. The
278 * actual hard drive is unaffected.
279 *
280 * @param raidrec The RAID volume structure to initialize.
281 * @note This function is system dependent.
282 */
283#ifdef __FreeBSD__
284void initialize_raidrec(struct vinum_volume *raidrec)
285{
286    int i, j;
287    raidrec->volname[0] = '\0';
288    raidrec->plexes = 0;
289    for (i = 0; i < 9; ++i) {
290        raidrec->plex[i].raidlevel = -1;
291        raidrec->plex[i].stripesize = 0;
292        raidrec->plex[i].subdisks = 0;
293        for (j = 0; j < 9; ++j) {
294            strcpy(raidrec->plex[i].sd[j].which_device, "");
295        }
296    }
297}
298#else
299void initialize_raidrec(struct raid_device_record *raidrec)
300{
301    assert(raidrec != NULL);
302    raidrec->raid_device[0] = '\0';
303    raidrec->raid_level = -9;
304    raidrec->persistent_superblock = 1;
305    raidrec->chunk_size = 64;
306    raidrec->parity = -1;
307    raidrec->data_disks.entries = 0;
308    raidrec->spare_disks.entries = 0;
309    raidrec->parity_disks.entries = 0;
310    raidrec->failed_disks.entries = 0;
311    raidrec->additional_vars.entries = 0;
312}
313#endif
314
315
316
317
318/**
319 * Insert modules that Mondo requires.
320 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
321 * @c msdosfs and @c ext2fs for FreeBSD.
322 */
323void insmod_crucial_modules(void)
324{
325#ifdef __FreeBSD__
326    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
327    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
328#else
329    system("modprobe -a msdos vfat loop &> /dev/null");
330#endif
331}
332
333
334/**
335 * Log a trace message to the trace file.
336 * @bug This function seems orphaned. Please remove.
337 */
338void log_trace(char *o)
339{
340    /*@ pointers **************************************************** */
341    FILE *fout;
342
343    /*@ buffers ***************************************************** */
344    char output[MAX_STR_LEN];
345
346    /*@ int    ****************************************************** */
347    int i;
348
349    /*@ end vars *************************************************** */
350
351    if (o[0] == '\0') {
352        return;
353    }
354    strcpy(output, o);
355    i = (int) strlen(output);
356    if (i <= 0) {
357        return;
358    }
359    if (output[i - 1] < 32) {
360        output[i - 1] = '\0';
361    }
362    if (g_text_mode
363        /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
364        printf("%s\n", output);
365    }
366
367    fout = fopen(MONDO_TRACEFILE, "a");
368    if (fout) {
369        fprintf(fout, "%s\n", output);
370        paranoid_fclose(fout);
371    } else {
372        log_OS_error("Cannot write to tracefile");
373    }
374}
375
376
377
378
379
380/**
381 * Finish configuring the backup information structure. Call this function
382 * to set the parameters that depend on those that can be given on the command
383 * line.
384 *
385 * @param bkpinfo The backup information structure. Fields modified/used:
386 * - Used: @c bkpinfo->backup_data
387 * - Used: @c bkpinfo->backup_media_type
388 * - Used: @c bkpinfo->cdrw_speed
389 * - Used: @c bkpinfo->compression_level
390 * - Used: @c bkpinfo->include_paths
391 * - Used: @c bkpinfo->prefix
392 * - Used: @c bkpinfo->isodir
393 * - Used: @c bkpinfo->manual_cd_tray
394 * - Used: @c bkpinfo->make_cd_use_lilo
395 * - Used: @c bkpinfo->media_device
396 * - Used: @c bkpinfo->nfs_mount
397 * - Used: @c bkpinfo->nonbootable_backup
398 * - Used: @c bkpinfo->scratchdir
399 * - Used: @c bkpinfo->tmpdir
400 * - Used: @c bkpinfo->use_lzo
401 * - Modified: @c bkpinfo->call_before_iso
402 * - Modified: @c bkpinfo->call_make_iso
403 * - Modified: @c bkpinfo->optimal_set_size
404 * - Modified: @c bkpinfo->zip_exe
405 * - Modified: @c bkpinfo->zip_suffix
406 *
407 * @return number of errors, or 0 for success.
408 * @note Also creates directories that are specified in the @c bkpinfo structure but
409 * do not exist.
410 */
411int post_param_configuration()
412{
413    char *extra_cdrom_params = NULL;
414    char *mondo_mkisofs_sz = NULL;
415    char *command = NULL;
416    char *mtpt;
417    char *hostname;
418    char *ip_address = NULL;
419    int retval = 0;
420    char *colon;
421    char *cdr_exe;
422    char *tmp = NULL;
423    char call_before_iso_user[MAX_STR_LEN] = "\0";
424    /*
425    long avm = 0;
426    int rdsiz_MB;
427    */
428    char *iso_dev = NULL;
429    char *iso_mnt = NULL;
430    char *iso_tmp = NULL;
431    char *iso_path = NULL;
432
433    assert(bkpinfo != NULL);
434    malloc_string(mtpt);
435    malloc_string(hostname);
436    malloc_string(cdr_exe);
437    bkpinfo->optimal_set_size =
438        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
439        1024;
440
441    log_msg(1, "Foo");
442    if (bkpinfo->backup_media_type == tape) {
443        log_msg(1, "Bar");
444        mr_asprintf(&tmp, "mt -f %s status", bkpinfo->media_device);
445        log_msg(1, "tmp = '%s'", tmp);
446        if (run_program_and_log_output(tmp, 3)) {
447            mr_free(tmp);
448            fatal_error
449                ("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.");
450        }
451        mr_free(tmp);
452    }
453    make_hole_for_dir(bkpinfo->scratchdir);
454    if (bkpinfo->backup_media_type == iso)
455        make_hole_for_dir(bkpinfo->isodir);
456
457    run_program_and_log_output("uname -a", 5);
458    run_program_and_log_output("cat /etc/*-release", 5);
459    run_program_and_log_output("cat /etc/*issue*", 5);
460#ifdef __FreeBSD__
461#else
462    run_program_and_log_output("cat /proc/cpuinfo", 5);
463    run_program_and_log_output
464        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
465         5);
466#endif
467
468    if (bkpinfo->use_lzo) {
469        strcpy(bkpinfo->zip_exe, "lzop");
470        strcpy(bkpinfo->zip_suffix, "lzo");
471    } else if (bkpinfo->use_gzip) {
472        strcpy(bkpinfo->zip_exe, "gzip");
473        strcpy(bkpinfo->zip_suffix, "gz");
474    } else if (bkpinfo->compression_level != 0) {
475        strcpy(bkpinfo->zip_exe, "bzip2");
476        strcpy(bkpinfo->zip_suffix, "bz2");
477    } else {
478        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
479    }
480
481// DVD
482
483    if (bkpinfo->backup_media_type == dvd) {
484        if (find_home_of_exe("growisofs")) {
485            strcpy(cdr_exe, "growisofs");
486        }                       // unlikely to be used
487        else {
488            fatal_error("Please install growisofs.");
489        }
490        if (bkpinfo->nonbootable_backup) {
491            mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
492        } else if
493#ifdef __FreeBSD__
494            (TRUE)
495#else
496            (bkpinfo->make_cd_use_lilo)
497#endif
498#ifdef __IA64__
499    {
500        mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
501    }
502#else
503    {
504        mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
505    }
506#endif
507        else
508        {
509            mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
510        }
511        if (bkpinfo->manual_cd_tray) {
512            paranoid_free(mondo_mkisofs_sz);
513            fatal_error("Manual CD tray + DVD not supported yet.");
514            // -m isn't supported by growisofs, BTW...
515        } else {
516            sprintf(bkpinfo->call_make_iso,
517                    "%s %s -Z %s . 2>> _ERR_",
518                    mondo_mkisofs_sz,
519                    "", bkpinfo->media_device);
520            paranoid_free(mondo_mkisofs_sz);
521        }
522        if (getenv ("SUDO_COMMAND")) {
523            mr_asprintf(&command, "strings `which growisofs` | grep -c SUDO_COMMAND");
524            if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
525                mr_free(command);
526                popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
527                fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
528            }       
529            mr_free(command);
530        }
531        log_msg(2, "call_make_iso (DVD res) is ... %s",
532                bkpinfo->call_make_iso);
533    }                           // end of DVD code
534
535// CD-R or CD-RW
536    if (bkpinfo->backup_media_type == cdrw
537        || bkpinfo->backup_media_type == cdr) {
538        if (!bkpinfo->manual_cd_tray) {
539            mr_asprintf(&extra_cdrom_params, "-waiti ");
540        }
541        if (bkpinfo->backup_media_type == cdrw) {
542            mr_asprintf(&extra_cdrom_params, "blank=fast ");
543        }
544        if (find_home_of_exe("cdrecord")) {
545            strcpy(cdr_exe, "cdrecord");
546        } else if (find_home_of_exe("dvdrecord")) {
547            strcpy(cdr_exe, "dvdrecord");
548        } else {
549            fatal_error("Please install either cdrecord or dvdrecord.");
550        }
551        if (bkpinfo->nonbootable_backup) {
552            mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
553        } else if
554#ifdef __FreeBSD__
555            (TRUE)
556#else
557            (bkpinfo->make_cd_use_lilo)
558#endif
559#ifdef __IA64__
560    {
561        mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
562    }
563#else
564    {
565        mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
566    }
567#endif
568        else
569        {
570            mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
571        }
572        if (bkpinfo->manual_cd_tray) {
573            if (bkpinfo->call_before_iso[0] == '\0') {
574            sprintf(bkpinfo->call_before_iso,
575                        "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_",
576                        mondo_mkisofs_sz, bkpinfo->tmpdir);
577                } else {
578                strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
579                sprintf (bkpinfo->call_before_iso,
580                                    "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )",
581                        mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
582            }
583            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
584            sprintf(bkpinfo->call_make_iso,
585                    "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS,
586                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
587                    extra_cdrom_params, bkpinfo->media_device,
588                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
589        } else {
590            sprintf(bkpinfo->call_make_iso,
591                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
592                    mondo_mkisofs_sz, cdr_exe,
593                    (bkpinfo->please_dont_eject) ? " " : "-eject",
594                    extra_cdrom_params, bkpinfo->media_device,
595                    bkpinfo->cdrw_speed);
596        }
597        paranoid_free(mondo_mkisofs_sz);
598        paranoid_free(extra_cdrom_params);
599    }                           // end of CD code
600
601    if (bkpinfo->backup_media_type == iso) {
602
603/* Patch by Conor Daly <conor.daly@met.ie>
604 * 23-june-2004
605 * Break up isodir into iso_mnt and iso_path
606 * These will be used along with iso-dev at restore time
607 * to locate the ISOs where ever they're mounted
608 */
609
610        log_it("isodir = %s", bkpinfo->isodir);
611        mr_asprintf(&command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
612        log_it("command = %s", command);
613        log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
614        mr_asprintf(&iso_dev, "%s", call_program_and_get_last_line_of_output(command));
615        mr_asprintf(&tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
616        write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
617        mr_free(tmp);
618        mr_free(command);
619
620        mr_asprintf(&command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
621        mr_free(iso_dev);
622
623        log_it("command = %s", command);
624        log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
625        mr_asprintf(&iso_mnt, "%s", call_program_and_get_last_line_of_output(command));
626        mr_asprintf(&tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
627        write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
628        mr_free(tmp);
629        mr_free(command);
630
631        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
632        mr_asprintf(&iso_tmp, "%s", bkpinfo->isodir);
633        if (strlen(iso_tmp) < strlen(iso_mnt)) {
634            mr_asprintf(&iso_path, "%s", "");
635        } else {
636            mr_asprintf(&iso_path, "%s", iso_tmp + strlen(iso_mnt));
637        }
638        mr_free(iso_tmp);
639
640        mr_asprintf(&tmp, "%s/ISODIR", bkpinfo->tmpdir);
641        write_one_liner_data_file(tmp, iso_path);
642        mr_free(tmp);
643
644        log_it("isodir: %s", iso_path);
645        mr_free(iso_path);
646
647        mr_asprintf(&tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
648        write_one_liner_data_file(tmp, bkpinfo->prefix);
649        mr_free(tmp);
650
651        log_it("iso-prefix: %s",  bkpinfo->prefix);
652
653/* End patch */
654    }                           // end of iso code
655
656    if (bkpinfo->backup_media_type == nfs) {
657        strcpy(hostname, bkpinfo->nfs_mount);
658        colon = strchr(hostname, ':');
659        if (!colon) {
660            log_it("nfs mount doesn't have a colon in it");
661            retval++;
662        } else {
663            struct hostent *hent;
664
665            *colon = '\0';
666            hent = gethostbyname(hostname);
667            if (!hent) {
668                log_it("Can't resolve NFS mount (%s): %s", hostname,
669                       hstrerror(h_errno));
670                retval++;
671            } else {
672                mr_asprintf(&ip_address, "%s", inet_ntoa((struct in_addr) *((struct in_addr *) hent->h_addr)));
673                mr_strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
674                strcpy(bkpinfo->nfs_mount, ip_address);
675                paranoid_free(ip_address);
676            }
677        }
678        store_nfs_config();
679    }
680
681    log_it("Finished processing incoming params");
682    if (retval) {
683        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
684    }
685    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
686        log_it("tmpdir or scratchdir are blank/missing");
687        retval++;
688    }
689    if (bkpinfo->include_paths[0] == '\0') {
690        //      fatal_error ("Why no backup path?");
691        strcpy(bkpinfo->include_paths, "/");
692    }
693    chmod(bkpinfo->scratchdir, 0700);
694    g_backup_media_type = bkpinfo->backup_media_type;
695    paranoid_free(mtpt);
696    paranoid_free(hostname);
697    paranoid_free(cdr_exe);
698    return (retval);
699}
700
701
702
703/**
704 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
705 * Seeds the random-number generator, loads important modules, checks the sanity
706 * of the user's Linux distribution, and deletes logfile.
707 * @param bkpinfo The backup information structure. Will be initialized.
708 * @return number of errors (0 for success)
709 */
710int pre_param_configuration()
711{
712    int res = 0;
713    char *tmp = NULL;
714
715    make_hole_for_dir(MNT_CDROM);
716    assert(bkpinfo != NULL);
717    srandom((unsigned long) (time(NULL)));
718    insmod_crucial_modules();
719    if (bkpinfo->disaster_recovery) {
720        if (!does_nonMS_partition_exist()) {
721            fatal_error
722                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
723        }
724    }
725
726    unlink(MONDO_TRACEFILE);
727    mr_asprintf(&tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
728    run_program_and_log_output(tmp, FALSE);
729    paranoid_free(tmp);
730    if (find_and_store_mondoarchives_home(g_mondo_home)) {
731        fprintf(stderr,
732                "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");
733        res++;
734        return (res);
735    }
736    res += some_basic_system_sanity_checks();
737    if (res) {
738        log_it("Your distribution did not pass Mondo's sanity test.");
739    }
740    g_current_media_number = 1;
741    bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
742    return (res);
743}
744
745void setup_tmpdir(char *path) {
746
747    char *tmp = NULL;
748    char *p = NULL;
749
750    if ((bkpinfo->tmpdir != NULL) && (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL)) {
751        /* purging a potential old tmpdir */
752        mr_asprintf(&tmp,"rm -Rf %s",bkpinfo->tmpdir);
753        system(tmp);
754        paranoid_free(tmp);
755    }
756
757    if (path != NULL) {
758        mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", path);
759    } else if (getenv("TMPDIR")) {
760        mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
761    } else if (getenv("TMP")) {
762        mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
763    } else {
764        mr_asprintf(&tmp, "/tmp/mondo.tmp.XXXXXX");
765    }
766    p = mkdtemp(tmp);
767    if (p == NULL) {
768        log_it("Failed to create global tmp directory %s for Mondo.",tmp);
769        finish(-1);
770    }
771    strcpy(bkpinfo->tmpdir,p);
772    paranoid_free(tmp);
773}
774
775
776/**
777 * Reset all fields of the backup information structure to a sensible default.
778 * @param bkpinfo The @c bkpinfo to reset.
779 */
780void reset_bkpinfo()
781{
782    int i;
783
784    log_msg(1, "Hi");
785    assert(bkpinfo != NULL);
786    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
787
788    bkpinfo->media_device[0] = '\0';
789    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
790        bkpinfo->media_size[i] = -1;
791    }
792    bkpinfo->boot_loader = '\0';
793    bkpinfo->boot_device[0] = '\0';
794    bkpinfo->zip_exe[0] = '\0';
795    bkpinfo->zip_suffix[0] = '\0';
796    bkpinfo->image_devs[0] = '\0';
797    bkpinfo->compression_level = 3;
798    bkpinfo->use_lzo = FALSE;
799    bkpinfo->use_gzip = FALSE;
800    bkpinfo->do_not_compress_these[0] = '\0';
801    bkpinfo->verify_data = FALSE;
802    bkpinfo->backup_data = FALSE;
803    bkpinfo->restore_data = FALSE;
804    bkpinfo->use_star = FALSE;
805    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
806    bkpinfo->disaster_recovery =
807        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
808    if (bkpinfo->disaster_recovery) {
809        strcpy(bkpinfo->isodir, "/");
810    } else {
811        strcpy(bkpinfo->isodir, MONDO_CACHE);
812    }
813    strcpy(bkpinfo->prefix, STD_PREFIX);
814    sensibly_set_tmpdir_and_scratchdir();
815
816    bkpinfo->optimal_set_size = 0;
817    strcpy(bkpinfo->include_paths, "/");
818    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
819    bkpinfo->include_paths[0] = '\0';
820    bkpinfo->exclude_paths[0] = '\0';
821    bkpinfo->restore_path[0] = '\0';
822    bkpinfo->call_before_iso[0] = '\0';
823    bkpinfo->call_make_iso[0] = '\0';
824    bkpinfo->call_burn_iso[0] = '\0';
825    bkpinfo->call_after_iso[0] = '\0';
826    bkpinfo->kernel_path[0] = '\0';
827    bkpinfo->nfs_mount[0] = '\0';
828    bkpinfo->nfs_user = NULL;
829    bkpinfo->nfs_remote_dir[0] = '\0';
830    bkpinfo->postnuke_tarball[0] = '\0';
831    bkpinfo->wipe_media_first = FALSE;
832    bkpinfo->differential = 0;
833    bkpinfo->please_dont_eject = FALSE;
834    bkpinfo->cdrw_speed = 0;
835    bkpinfo->manual_cd_tray = FALSE;
836    bkpinfo->nonbootable_backup = FALSE;
837    bkpinfo->make_cd_use_lilo = FALSE;
838    bkpinfo->use_obdr = FALSE;
839    bkpinfo->restore_mode = interactive;
840}
841
842
843
844
845/**
846 * Get the remaining free space (in MB) on @p partition.
847 * @param partition The partition to check free space on (either a device or a mountpoint).
848 * @return The free space on @p partition, in MB.
849 */
850long free_space_on_given_partition(char *partition)
851{
852    char *out_sz = NULL;
853    char *command = NULL;
854    long res;
855
856    assert_string_is_neither_NULL_nor_zerolength(partition);
857
858    mr_asprintf(&command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
859    if (system(command)) {
860        mr_free(command);
861        return (-1);
862    }                           // partition does not exist
863    mr_free(command);
864
865    mr_asprintf(&command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
866            partition);
867    mr_asprintf(&out_sz, "%s", call_program_and_get_last_line_of_output(command));
868    mr_free(command);
869
870    if (strlen(out_sz) == 0) {
871        mr_free(out_sz);
872        return (-1);
873    }                           // error within df, probably
874    res = atol(out_sz);
875    mr_free(out_sz);
876    return (res);
877}
878
879
880
881/**
882 * Check the user's system for sanity. Checks performed:
883 * - make sure user has enough RAM (32mb required, 64mb recommended)
884 * - make sure user has enough free space in @c /
885 * - check kernel for ramdisk support
886 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
887 * - make sure CD-ROM is unmounted
888 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
889 *
890 * @return number of problems with the user's setup (0 for success)
891 */
892int some_basic_system_sanity_checks()
893{
894
895    /*@ buffers ************ */
896    char *tmp = NULL;
897
898    /*@ int's *************** */
899    int retval = 0;
900
901    mvaddstr_and_log_it(g_currentY, 0,
902                        "Checking sanity of your Linux distribution");
903#ifndef __FreeBSD__
904    if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
905        && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
906        log_it
907            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
908        run_program_and_log_output
909            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
910    }
911    mr_asprintf(&tmp, "%s", call_program_and_get_last_line_of_output("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
912    if (atol(tmp) < 35000) {
913        retval++;
914        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
915    }
916    if (atol(tmp) < 66000) {
917        log_to_screen
918            ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
919    }
920    mr_free(tmp);
921#endif
922
923    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
924        retval++;
925        log_to_screen
926            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
927        fatal_error
928            ("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. :)");
929    }
930#ifndef __FreeBSD__
931    if (run_program_and_log_output
932        ("grep ramdisk /proc/devices", FALSE)) {
933        /* Some SuSE have ramdisk as modules, so insert it first, then test again */
934        run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
935        if (run_program_and_log_output
936            ("grep ramdisk /proc/devices", FALSE)) {
937            if (!ask_me_yes_or_no
938                ("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?"))
939            {
940                //          retval++;
941                log_to_screen
942                    ("It looks as if your kernel lacks ramdisk and initrd support.");
943                log_to_screen
944                    ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
945            }
946        }
947    }
948#endif
949    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
950    retval += whine_if_not_found("mkisofs");
951    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
952        retval += whine_if_not_found("cdrecord");
953    }
954    retval += whine_if_not_found("bzip2");
955    retval += whine_if_not_found("gzip");
956    retval += whine_if_not_found("awk");
957    retval += whine_if_not_found("md5sum");
958    retval += whine_if_not_found("strings");
959    retval += whine_if_not_found("mindi");
960    retval += whine_if_not_found("buffer");
961
962    // abort if Windows partition but no ms-sys and parted
963    if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
964        log_to_screen("I think you have a Windows 9x partition.");
965        retval += whine_if_not_found("parted");
966    }
967
968    if (!find_home_of_exe("cmp")) {
969        if (!find_home_of_exe("true")) {
970            whine_if_not_found("cmp");
971        } else {
972            log_to_screen
973                ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
974            if (run_program_and_log_output
975                ("cp -f `which true` /usr/bin/cmp", 0)) {
976                fatal_error("Failed to create dummy 'cmp' file.");
977            }
978        }
979    }
980    run_program_and_log_output
981        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
982    mr_asprintf(&tmp, "%s", call_program_and_get_last_line_of_output("mount | grep -E \"cdr(om|w)\""));
983    if (strcmp("", tmp)) {
984        if (strstr(tmp, "autofs")) {
985            log_to_screen
986                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
987            log_to_screen
988                ("if a CD actually is inserted. If a CD is inserted, please");
989            log_to_screen("eject it. Thank you.");
990            log_it
991                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
992        } else
993            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
994            retval++;
995            mr_free(tmp);
996            fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
997        }
998    }
999    mr_free(tmp);
1000
1001    run_program_and_log_output("cat /etc/fstab", 5);
1002#ifdef __FreeBSD__
1003    run_program_and_log_output("vinum printconfig", 5);
1004#else
1005    run_program_and_log_output("cat /etc/raidtab", 5);
1006#endif
1007
1008    if (run_program_and_log_output("mindi -V", 1)) {
1009        log_to_screen("Could not ascertain mindi's version number.");
1010        log_to_screen
1011            ("You have not installed Mondo and/or Mindi properly.");
1012        log_to_screen("Please uninstall and reinstall them both.");
1013        fatal_error("Please reinstall Mondo and Mindi.");
1014    }
1015    mr_asprintf(&tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1016    if (run_program_and_log_output(tmp, 5)) {
1017        mr_free(tmp);
1018        mr_asprintf(&tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1019        log_to_screen(tmp);
1020        log_to_screen
1021            ("Please run that command by hand and examine /var/log/mindi.log");
1022        log_to_screen
1023            ("for more information. Perhaps your /etc/fstab file is insane.");
1024        log_to_screen
1025            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1026        retval++;
1027    }
1028    mr_free(tmp);
1029
1030    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1031        && !does_file_exist("/etc/raidtab")) {
1032        log_to_screen
1033            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1034        create_raidtab_from_mdstat("/etc/raidtab");
1035    }
1036
1037    if (retval) {
1038        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1039    } else {
1040        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1041    }
1042    return (retval);
1043}
1044
1045/**
1046 * Retrieve the line containing @p label from the config file.
1047 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1048 * @param label What to read from the file.
1049 * @param value Where to put it.
1050 * @return 0 for success, 1 for failure.
1051 */
1052int read_cfg_var(char *config_file, char *label, char *value)
1053{
1054    /*@ buffer ****************************************************** */
1055    char *command = NULL;
1056    char *tmp = NULL;
1057
1058    /*@ end vars *************************************************** */
1059
1060    assert_string_is_neither_NULL_nor_zerolength(config_file);
1061    assert_string_is_neither_NULL_nor_zerolength(label);
1062    if (!does_file_exist(config_file)) {
1063        mr_asprintf(&tmp, "(read_cfg_var) Cannot find %s config file", config_file);
1064        log_to_screen(tmp);
1065        mr_free(tmp);
1066
1067        value[0] = '\0';
1068        return (1);
1069    } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1070        log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1071        return (0);
1072    } else {
1073        mr_asprintf(&command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1074        strcpy(value, call_program_and_get_last_line_of_output(command));
1075        mr_free(command);
1076
1077        if (strlen(value) == 0) {
1078            return (1);
1079        } else {
1080            return (0);
1081        }
1082    }
1083}
1084
1085
1086
1087/**
1088 * Remount @c supermount if it was unmounted earlier.
1089 */
1090void remount_supermounts_if_necessary()
1091{
1092    if (g_remount_cdrom_at_end) {
1093        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1094    }
1095    if (g_remount_floppy_at_end) {
1096        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1097    }
1098}
1099
1100/**
1101 * Unmount @c supermount if it's mounted.
1102 */
1103void unmount_supermounts_if_necessary()
1104{
1105    if (run_program_and_log_output
1106        ("mount | grep cdrom | grep super", FALSE) == 0) {
1107        g_remount_cdrom_at_end = TRUE;
1108        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1109    }
1110    if (run_program_and_log_output
1111        ("mount | grep floppy | grep super", FALSE) == 0) {
1112        g_remount_floppy_at_end = TRUE;
1113        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1114    }
1115}
1116
1117/**
1118 * Whether we had to stop autofs (if so, restart it at end).
1119 */
1120bool g_autofs_stopped = FALSE;
1121
1122/**
1123 * Path to the autofs initscript ("" if none exists).
1124 */
1125char g_autofs_exe[MAX_STR_LEN];
1126
1127/**
1128 * Autofs initscript in Xandros Linux distribution.
1129 */
1130#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1131
1132/**
1133 * Autofs initscript in most Linux distributions.
1134 */
1135#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1136
1137/**
1138 * If autofs is mounted, stop it (restart at end).
1139 */
1140void stop_autofs_if_necessary()
1141{
1142    char *tmp = NULL;
1143
1144    g_autofs_exe[0] = '\0';
1145    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1146        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1147    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1148        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1149    }
1150
1151    if (!g_autofs_exe[0]) {
1152        log_msg(3, "No autofs detected.");
1153    } else {
1154        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1155        // FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1156        mr_asprintf(&tmp, "%s stop", g_autofs_exe);
1157        if (run_program_and_log_output(tmp, 2)) {
1158            log_it("Failed to stop autofs - I assume it wasn't running");
1159        } else {
1160            g_autofs_stopped = TRUE;
1161            log_it("Stopped autofs OK");
1162        }
1163        mr_free(tmp);
1164    }
1165}
1166
1167/**
1168 * If autofs was stopped earlier, restart it.
1169 */
1170void restart_autofs_if_necessary()
1171{
1172    char *tmp = NULL;
1173
1174    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1175        log_msg(3, "No autofs detected.");
1176        return;
1177    }
1178    mr_asprintf(&tmp, "%s start", g_autofs_exe);
1179    if (run_program_and_log_output(tmp, 2)) {
1180        log_it("Failed to start autofs");
1181    } else {
1182        g_autofs_stopped = FALSE;
1183        log_it("Started autofs OK");
1184    }
1185    mr_free(tmp);
1186}
1187
1188
1189/**
1190 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1191 */
1192void mount_boot_if_necessary()
1193{
1194    char *tmp = NULL;
1195    char *command = NULL;
1196
1197    log_msg(1, "Started sub");
1198    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1199    g_boot_mountpt[0] = '\0';
1200    log_msg(4, "Done. Great. Seeting command to something");
1201    mr_asprintf(&command, "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[    ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1202    log_msg(4, "Cool. Command = '%s'", command);
1203    mr_asprintf(&tmp, "%s", call_program_and_get_last_line_of_output(command));
1204    mr_free(command);
1205
1206    log_msg(4, "tmp = '%s'", tmp);
1207    if (tmp[0]) {
1208        log_it("/boot is at %s according to /etc/fstab", tmp);
1209        mr_asprintf(&command, "mount | grep -Ew '/boot'");
1210        mr_free(tmp);
1211        mr_asprintf(&tmp, "%s", call_program_and_get_last_line_of_output(command));
1212        mr_free(command);
1213
1214        if (!strcmp(tmp,"")) {
1215            if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1216                if (!run_program_and_log_output("mount /boot", 5)) {
1217                    strcpy(g_boot_mountpt, "/boot");
1218                    log_msg(1, "Mounted /boot");
1219                } else {
1220                    log_it("...ignored cos it's a label or uuid :-)");
1221                }
1222            } else {
1223                mr_asprintf(&command, "mount | grep -E '^%s'", tmp);
1224                log_msg(3, "command = %s", command);
1225                if (run_program_and_log_output(command, 5)) {
1226                    strcpy(g_boot_mountpt, tmp);
1227                    mr_free(tmp);
1228                    mr_asprintf(&tmp, "%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1229                    log_it(tmp);
1230                    mr_free(tmp);
1231
1232                    mr_asprintf(&tmp, "mount %s", g_boot_mountpt);
1233                    if (run_program_and_log_output(tmp, 5)) {
1234                        g_boot_mountpt[0] = '\0';
1235                        log_msg(1, "Plan B");
1236                        if (!run_program_and_log_output("mount /boot", 5)) {
1237                            strcpy(g_boot_mountpt, "/boot");
1238                            log_msg(1, "Plan B worked");
1239                        } else {
1240                            log_msg(1,
1241                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1242                        }
1243                    }
1244                    mr_free(tmp);
1245                }
1246                mr_free(command);
1247            }
1248        }
1249    }
1250    log_msg(1, "Ended sub");
1251}
1252
1253
1254/**
1255 * If we mounted /boot earlier, unmount it.
1256 */
1257void unmount_boot_if_necessary()
1258{
1259    char *tmp = NULL;
1260
1261    log_msg(3, "starting");
1262    if (g_boot_mountpt[0]) {
1263        mr_asprintf(&tmp, "umount %s", g_boot_mountpt);
1264        if (run_program_and_log_output(tmp, 5)) {
1265            log_it("WARNING - unable to unmount /boot");
1266        }
1267        mr_free(tmp);
1268    }
1269    log_msg(3, "leaving");
1270}
1271
1272
1273
1274/**
1275 * Write a line to a configuration file. Writes a line of the form,
1276 * @c label @c value.
1277 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1278 * @param label What to call this bit of data you're writing.
1279 * @param value The bit of data you're writing.
1280 * @return 0 for success, 1 for failure.
1281 */
1282int write_cfg_var(char *config_file, char *label, char *value)
1283{
1284    /*@ buffers ***************************************************** */
1285    char *command = NULL;
1286    char *tempfile = NULL;
1287    char *tmp = NULL;
1288
1289
1290    /*@ end vars *************************************************** */
1291    assert_string_is_neither_NULL_nor_zerolength(config_file);
1292    assert_string_is_neither_NULL_nor_zerolength(label);
1293    assert(value != NULL);
1294    if (!does_file_exist(config_file)) {
1295        mr_asprintf(&tmp, "(write_cfg_file) Cannot find %s config file", config_file);
1296        log_to_screen(tmp);
1297        mr_free(tmp);
1298        return (1);
1299    }
1300    mr_asprintf(&tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1301    if (does_file_exist(config_file)) {
1302        mr_asprintf(&command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1303        paranoid_system(command);
1304        mr_free(command);
1305    }
1306    mr_asprintf(&command, "echo \"%s %s\" >> %s", label, value, tempfile);
1307    paranoid_system(command);
1308    mr_free(command);
1309
1310    mr_asprintf(&command, "mv -f %s %s", tempfile, config_file);
1311    paranoid_system(command);
1312    mr_free(command);
1313    unlink(tempfile);
1314    mr_free(tempfile);
1315    return (0);
1316}
1317
1318
1319/**
1320 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1321 * information to the logfile.
1322 */
1323void standard_log_debug_msg(int debug_level, const char *szFile,
1324                            const char *szFunction, int nLine,
1325                            const char *fmt, ...)
1326{
1327    va_list args;
1328    int i;
1329    static int depth = 0;
1330    FILE *fout;
1331
1332    if (depth > 5) {
1333        depth--;
1334        return;
1335    }
1336    depth++;
1337
1338    if (debug_level <= g_loglevel) {
1339        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1340            return;
1341        }       // fatal_error("Failed to openout to logfile - sheesh..."); }
1342
1343        // add tabs to distinguish log levels
1344        if (debug_level > 0) {
1345            for (i = 1; i < debug_level; i++)
1346                fprintf(fout, "\t");
1347            if (getpid() == g_main_pid)
1348                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1349            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1350                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1351            else
1352                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1353        }
1354        va_start(args, fmt);
1355        vfprintf(fout, fmt, args);
1356        va_end(args);
1357
1358        // do not slow down the progran if standard debug level
1359        // must be enabled: if no flush, the log won't be up-to-date if there
1360        // is a segfault
1361        //if (g_dwDebugLevel != 1)
1362
1363        fprintf(fout, "\n");
1364        paranoid_fclose(fout);
1365    }
1366    depth--;
1367}
1368
1369/**
1370 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1371 */
1372void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1373                       ...) = standard_log_debug_msg;
1374
1375
1376/**
1377 * Allocate or free important globals, depending on @p mal.
1378 * @param mal If TRUE, malloc; if FALSE, free.
1379 */
1380void do_libmondo_global_strings_thing(int mal)
1381{
1382    if (mal) {
1383        malloc_string(g_boot_mountpt);
1384        malloc_string(g_mondo_home);
1385        /*
1386        malloc_string(g_tmpfs_mountpt);
1387        */
1388        malloc_string(g_magicdev_command);
1389    } else {
1390        paranoid_free(g_boot_mountpt);
1391        paranoid_free(g_mondo_home);
1392        /*
1393        paranoid_free(g_tmpfs_mountpt);
1394        */
1395        mr_free(g_serial_string);
1396        paranoid_free(g_magicdev_command);
1397
1398    }
1399}
1400
1401/**
1402 * Allocate important globals.
1403 * @see do_libmondo_global_strings_thing
1404 */
1405void malloc_libmondo_global_strings(void)
1406{
1407    do_libmondo_global_strings_thing(1);
1408}
1409
1410/**
1411 * Free important globals.
1412 * @see do_libmondo_global_strings_thing
1413 */
1414void free_libmondo_global_strings(void)
1415{
1416    do_libmondo_global_strings_thing(0);
1417}
1418
1419
1420
1421/**
1422 * Stop @c magicdev if it's running.
1423 * The command used to start it is saved in @p g_magicdev_command.
1424 */
1425void stop_magicdev_if_necessary()
1426{
1427    strcpy(g_magicdev_command,
1428           call_program_and_get_last_line_of_output
1429           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1430    if (g_magicdev_command[0]) {
1431        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1432        paranoid_system("killall magicdev");
1433    }
1434}
1435
1436
1437/**
1438 * Restart magicdev if it was stopped.
1439 */
1440void restart_magicdev_if_necessary()
1441{
1442    char *tmp = NULL;
1443
1444    if (g_magicdev_command && g_magicdev_command[0]) {
1445        mr_asprintf(&tmp, "%s &", g_magicdev_command);
1446        paranoid_system(tmp);
1447        mr_free(tmp);
1448    }
1449}
1450
1451/* @} - end of utilityGroup */
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