source: MondoRescue/branches/2.2.10/mondo/src/common/libmondo-tools.c @ 2296

Last change on this file since 2296 was 2296, checked in by Bruno Cornec, 11 years ago
  • Replace sprintf by mr_asprintf in mondo-rstr-compare.c
  • All mr_asprintf call should be on one line (for quality script) and use a string as second param
  • Improve quality script
  • Property svn:keywords set to Id
File size: 39.5 KB
Line 
1/*
2   $Id: libmondo-tools.c 2296 2009-07-23 12:53:30Z 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 2296 2009-07-23 12:53:30Z 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 $3"); // break to debugger
135#endif
136            break;
137        case 'E':               // (E)xit
138            fatal_error("Failed assertion -- see above for details");
139            break;              /* "can't get here" */
140        case 'I':               // (I)gnore
141            break;
142            /* These next two work as follows:
143               the `default' catches the user's invalid choice and says so;
144               the '\n' catches the newline on the end and prints the prompt again.
145             */
146        case '\n':
147            printf
148                ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
149            break;
150        default:
151            is_valid = FALSE;
152            printf("Invalid choice.\n");
153            break;
154        }
155    } while (!is_valid);
156
157    if (ignoring_assertions) {
158        log_it("Ignoring ALL assertions from now on.");
159    } else {
160        log_it("Ignoring assertion: %s", exp);
161    }
162
163    getchar();                  // skip \n
164
165#ifndef _XWIN
166    if (!g_text_mode)
167        newtResume();
168#endif
169}
170
171/**
172 * Clean's up users' KDE desktops.
173 * @bug Details about this function are unknown.
174 */
175void clean_up_KDE_desktop_if_necessary(void)
176{
177    char *tmp;
178
179    malloc_string(tmp);
180    strcpy(tmp,
181           "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
182file=$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/**
336 * Log a trace message to the trace file.
337 * @bug This function seems orphaned. Please remove.
338 */
339void log_trace(char *o)
340{
341    /*@ pointers **************************************************** */
342    FILE *fout;
343
344    /*@ buffers ***************************************************** */
345    char output[MAX_STR_LEN];
346
347    /*@ int    ****************************************************** */
348    int i;
349
350    /*@ end vars *************************************************** */
351
352    if (o[0] == '\0') {
353        return;
354    }
355    strcpy(output, o);
356    i = (int) strlen(output);
357    if (i <= 0) {
358        return;
359    }
360    if (output[i - 1] < 32) {
361        output[i - 1] = '\0';
362    }
363    if (g_text_mode
364        /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
365        printf("%s\n", output);
366    }
367
368    fout = fopen(MONDO_TRACEFILE, "a");
369    if (fout) {
370        fprintf(fout, "%s\n", output);
371        paranoid_fclose(fout);
372    } else {
373        log_OS_error("Cannot write to tracefile");
374    }
375}
376
377
378
379
380
381/**
382 * Finish configuring the backup information structure. Call this function
383 * to set the parameters that depend on those that can be given on the command
384 * line.
385 *
386 * @param bkpinfo The backup information structure. Fields modified/used:
387 * - Used: @c bkpinfo->backup_data
388 * - Used: @c bkpinfo->backup_media_type
389 * - Used: @c bkpinfo->cdrw_speed
390 * - Used: @c bkpinfo->compression_level
391 * - Used: @c bkpinfo->include_paths
392 * - Used: @c bkpinfo->prefix
393 * - Used: @c bkpinfo->isodir
394 * - Used: @c bkpinfo->manual_cd_tray
395 * - Used: @c bkpinfo->make_cd_use_lilo
396 * - Used: @c bkpinfo->media_device
397 * - Used: @c bkpinfo->nfs_mount
398 * - Used: @c bkpinfo->nonbootable_backup
399 * - Used: @c bkpinfo->scratchdir
400 * - Used: @c bkpinfo->tmpdir
401 * - Used: @c bkpinfo->use_lzo
402 * - Modified: @c bkpinfo->call_before_iso
403 * - Modified: @c bkpinfo->call_make_iso
404 * - Modified: @c bkpinfo->optimal_set_size
405 * - Modified: @c bkpinfo->zip_exe
406 * - Modified: @c bkpinfo->zip_suffix
407 *
408 * @return number of errors, or 0 for success.
409 * @note Also creates directories that are specified in the @c bkpinfo structure but
410 * do not exist.
411 */
412int post_param_configuration()
413{
414    char *extra_cdrom_params = NULL;
415    char *mondo_mkisofs_sz = NULL;
416    char *command = NULL;
417    char *mtpt;
418    char *hostname;
419    char *ip_address = NULL;
420    int retval = 0;
421    char *colon;
422    char *cdr_exe;
423    char *tmp = NULL;
424    char call_before_iso_user[MAX_STR_LEN] = "\0";
425    /*
426    long avm = 0;
427    int rdsiz_MB;
428    */
429    char *iso_dev = NULL;
430    char *iso_mnt = NULL;
431    char *iso_tmp = NULL;
432    char *iso_path = NULL;
433
434    assert(bkpinfo != NULL);
435    malloc_string(mtpt);
436    malloc_string(hostname);
437    malloc_string(cdr_exe);
438    bkpinfo->optimal_set_size =
439        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
440        1024;
441
442    log_msg(1, "Foo");
443    if (bkpinfo->backup_media_type == tape) {
444        log_msg(1, "Bar");
445        mr_asprintf(&tmp, "mt -f %s status", bkpinfo->media_device);
446        log_msg(1, "tmp = '%s'", tmp);
447        if (run_program_and_log_output(tmp, 3)) {
448            mr_free(tmp);
449            fatal_error
450                ("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.");
451        }
452        mr_free(tmp);
453    }
454    make_hole_for_dir(bkpinfo->scratchdir);
455    if (bkpinfo->backup_media_type == iso)
456        make_hole_for_dir(bkpinfo->isodir);
457
458    run_program_and_log_output("uname -a", 5);
459    run_program_and_log_output("cat /etc/*-release", 5);
460    run_program_and_log_output("cat /etc/*issue*", 5);
461#ifdef __FreeBSD__
462#else
463    run_program_and_log_output("cat /proc/cpuinfo", 5);
464    run_program_and_log_output
465        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
466         5);
467#endif
468
469    if (bkpinfo->use_lzo) {
470        strcpy(bkpinfo->zip_exe, "lzop");
471        strcpy(bkpinfo->zip_suffix, "lzo");
472    } else if (bkpinfo->use_gzip) {
473        strcpy(bkpinfo->zip_exe, "gzip");
474        strcpy(bkpinfo->zip_suffix, "gz");
475    } else if (bkpinfo->compression_level != 0) {
476        strcpy(bkpinfo->zip_exe, "bzip2");
477        strcpy(bkpinfo->zip_suffix, "bz2");
478    } else {
479        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
480    }
481
482// DVD
483
484    if (bkpinfo->backup_media_type == dvd) {
485        if (find_home_of_exe("growisofs")) {
486            strcpy(cdr_exe, "growisofs");
487        }                       // unlikely to be used
488        else {
489            fatal_error("Please install growisofs.");
490        }
491        if (bkpinfo->nonbootable_backup) {
492            mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
493        } else if
494#ifdef __FreeBSD__
495            (TRUE)
496#else
497            (bkpinfo->make_cd_use_lilo)
498#endif
499#ifdef __IA64__
500    {
501        mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
502    }
503#else
504    {
505        mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
506    }
507#endif
508        else
509        {
510            mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
511        }
512        if (bkpinfo->manual_cd_tray) {
513            paranoid_free(mondo_mkisofs_sz);
514            fatal_error("Manual CD tray + DVD not supported yet.");
515            // -m isn't supported by growisofs, BTW...
516        } else {
517            sprintf(bkpinfo->call_make_iso,
518                    "%s %s -Z %s . 2>> _ERR_",
519                    mondo_mkisofs_sz,
520                    "", bkpinfo->media_device);
521            paranoid_free(mondo_mkisofs_sz);
522        }
523        if (getenv ("SUDO_COMMAND")) {
524            mr_asprintf(&command, "strings `which growisofs` | grep -c SUDO_COMMAND");
525            if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
526                mr_free(command);
527                popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
528                fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
529            }       
530            mr_free(command);
531        }
532        log_msg(2, "call_make_iso (DVD res) is ... %s",
533                bkpinfo->call_make_iso);
534    }                           // end of DVD code
535
536// CD-R or CD-RW
537    if (bkpinfo->backup_media_type == cdrw
538        || bkpinfo->backup_media_type == cdr) {
539        if (!bkpinfo->manual_cd_tray) {
540            mr_asprintf(&extra_cdrom_params, "-waiti ");
541        }
542        if (bkpinfo->backup_media_type == cdrw) {
543            mr_asprintf(&extra_cdrom_params, "blank=fast ");
544        }
545        if (find_home_of_exe("cdrecord")) {
546            strcpy(cdr_exe, "cdrecord");
547        } else if (find_home_of_exe("dvdrecord")) {
548            strcpy(cdr_exe, "dvdrecord");
549        } else {
550            fatal_error("Please install either cdrecord or dvdrecord.");
551        }
552        if (bkpinfo->nonbootable_backup) {
553            mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
554        } else if
555#ifdef __FreeBSD__
556            (TRUE)
557#else
558            (bkpinfo->make_cd_use_lilo)
559#endif
560#ifdef __IA64__
561    {
562        mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
563    }
564#else
565    {
566        mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
567    }
568#endif
569        else
570        {
571            mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
572        }
573        if (bkpinfo->manual_cd_tray) {
574            if (bkpinfo->call_before_iso[0] == '\0') {
575            sprintf(bkpinfo->call_before_iso,
576                        "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_",
577                        mondo_mkisofs_sz, bkpinfo->tmpdir);
578                } else {
579                strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
580                sprintf (bkpinfo->call_before_iso,
581                                    "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )",
582                        mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
583            }
584            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
585            sprintf(bkpinfo->call_make_iso,
586                    "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS,
587                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
588                    extra_cdrom_params, bkpinfo->media_device,
589                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
590        } else {
591            sprintf(bkpinfo->call_make_iso,
592                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
593                    mondo_mkisofs_sz, cdr_exe,
594                    (bkpinfo->please_dont_eject) ? " " : "-eject",
595                    extra_cdrom_params, bkpinfo->media_device,
596                    bkpinfo->cdrw_speed);
597        }
598        paranoid_free(mondo_mkisofs_sz);
599        paranoid_free(extra_cdrom_params);
600    }                           // end of CD code
601
602    if (bkpinfo->backup_media_type == iso) {
603
604/* Patch by Conor Daly <conor.daly@met.ie>
605 * 23-june-2004
606 * Break up isodir into iso_mnt and iso_path
607 * These will be used along with iso-dev at restore time
608 * to locate the ISOs where ever they're mounted
609 */
610
611        log_it("isodir = %s", bkpinfo->isodir);
612        mr_asprintf(&command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
613        log_it("command = %s", command);
614        log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
615        mr_asprintf(&iso_dev, "%s", call_program_and_get_last_line_of_output(command));
616        mr_asprintf(&tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
617        write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
618        mr_free(tmp);
619        mr_free(command);
620
621        mr_asprintf(&command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
622        mr_free(iso_dev);
623
624        log_it("command = %s", command);
625        log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
626        mr_asprintf(&iso_mnt, "%s", call_program_and_get_last_line_of_output(command));
627        mr_asprintf(&tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
628        write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
629        mr_free(tmp);
630        mr_free(command);
631
632        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
633        mr_asprintf(&iso_tmp, "%s", bkpinfo->isodir);
634        if (strlen(iso_tmp) < strlen(iso_mnt)) {
635            mr_asprintf(&iso_path, "%s", "");
636        } else {
637            mr_asprintf(&iso_path, "%s", iso_tmp + strlen(iso_mnt));
638        }
639        mr_free(iso_tmp);
640
641        mr_asprintf(&tmp, "%s/ISODIR", bkpinfo->tmpdir);
642        write_one_liner_data_file(tmp, iso_path);
643        mr_free(tmp);
644
645        log_it("isodir: %s", iso_path);
646        mr_free(iso_path);
647
648        mr_asprintf(&tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
649        write_one_liner_data_file(tmp, bkpinfo->prefix);
650        mr_free(tmp);
651
652        log_it("iso-prefix: %s",  bkpinfo->prefix);
653
654/* End patch */
655    }                           // end of iso code
656
657    if (bkpinfo->backup_media_type == nfs) {
658        strcpy(hostname, bkpinfo->nfs_mount);
659        colon = strchr(hostname, ':');
660        if (!colon) {
661            log_it("nfs mount doesn't have a colon in it");
662            retval++;
663        } else {
664            struct hostent *hent;
665
666            *colon = '\0';
667            hent = gethostbyname(hostname);
668            if (!hent) {
669                log_it("Can't resolve NFS mount (%s): %s", hostname,
670                       hstrerror(h_errno));
671                retval++;
672            } else {
673                mr_asprintf(&ip_address, "%s", inet_ntoa((struct in_addr) *((struct in_addr *) hent->h_addr)));
674                mr_strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
675                strcpy(bkpinfo->nfs_mount, ip_address);
676                paranoid_free(ip_address);
677            }
678        }
679        store_nfs_config();
680    }
681
682    log_it("Finished processing incoming params");
683    if (retval) {
684        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
685    }
686    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
687        log_it("tmpdir or scratchdir are blank/missing");
688        retval++;
689    }
690    if (bkpinfo->include_paths[0] == '\0') {
691        //      fatal_error ("Why no backup path?");
692        strcpy(bkpinfo->include_paths, "/");
693    }
694    chmod(bkpinfo->scratchdir, 0700);
695    g_backup_media_type = bkpinfo->backup_media_type;
696    paranoid_free(mtpt);
697    paranoid_free(hostname);
698    paranoid_free(cdr_exe);
699    return (retval);
700}
701
702
703
704/**
705 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
706 * Seeds the random-number generator, loads important modules, checks the sanity
707 * of the user's Linux distribution, and deletes logfile.
708 * @param bkpinfo The backup information structure. Will be initialized.
709 * @return number of errors (0 for success)
710 */
711int pre_param_configuration()
712{
713    int res = 0;
714    char *tmp = NULL;
715
716    make_hole_for_dir(MNT_CDROM);
717    assert(bkpinfo != NULL);
718    srandom((unsigned long) (time(NULL)));
719    insmod_crucial_modules();
720    if (bkpinfo->disaster_recovery) {
721        if (!does_nonMS_partition_exist()) {
722            fatal_error
723                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
724        }
725    }
726
727    unlink(MONDO_TRACEFILE);
728    mr_asprintf(&tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
729    run_program_and_log_output(tmp, FALSE);
730    paranoid_free(tmp);
731    if (find_and_store_mondoarchives_home(g_mondo_home)) {
732        fprintf(stderr,
733                "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");
734        res++;
735        return (res);
736    }
737    res += some_basic_system_sanity_checks();
738    if (res) {
739        log_it("Your distribution did not pass Mondo's sanity test.");
740    }
741    g_current_media_number = 1;
742    bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
743    return (res);
744}
745
746void setup_tmpdir(char *path) {
747
748    char *tmp = NULL;
749    char *p = NULL;
750
751    if ((bkpinfo->tmpdir != NULL) && (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL)) {
752        /* purging a potential old tmpdir */
753        mr_asprintf(&tmp,"rm -Rf %s",bkpinfo->tmpdir);
754        system(tmp);
755        paranoid_free(tmp);
756    }
757
758    if (path != NULL) {
759        mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", path);
760    } else if (getenv("TMPDIR")) {
761        mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
762    } else if (getenv("TMP")) {
763        mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
764    } else {
765        mr_asprintf(&tmp, "/tmp/mondo.tmp.XXXXXX");
766    }
767    p = mkdtemp(tmp);
768    if (p == NULL) {
769        log_it("Failed to create global tmp directory %s for Mondo.",tmp);
770        finish(-1);
771    }
772    strcpy(bkpinfo->tmpdir,p);
773    paranoid_free(tmp);
774}
775
776
777/**
778 * Reset all fields of the backup information structure to a sensible default.
779 * @param bkpinfo The @c bkpinfo to reset.
780 */
781void reset_bkpinfo()
782{
783    int i;
784
785    log_msg(1, "Hi");
786    assert(bkpinfo != NULL);
787    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
788
789    bkpinfo->media_device[0] = '\0';
790    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
791        bkpinfo->media_size[i] = -1;
792    }
793    bkpinfo->boot_loader = '\0';
794    bkpinfo->boot_device[0] = '\0';
795    bkpinfo->zip_exe[0] = '\0';
796    bkpinfo->zip_suffix[0] = '\0';
797    bkpinfo->image_devs[0] = '\0';
798    bkpinfo->compression_level = 3;
799    bkpinfo->use_lzo = FALSE;
800    bkpinfo->use_gzip = FALSE;
801    bkpinfo->do_not_compress_these[0] = '\0';
802    bkpinfo->verify_data = FALSE;
803    bkpinfo->backup_data = FALSE;
804    bkpinfo->restore_data = FALSE;
805    bkpinfo->use_star = FALSE;
806    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
807    bkpinfo->disaster_recovery =
808        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
809    if (bkpinfo->disaster_recovery) {
810        strcpy(bkpinfo->isodir, "/");
811    } else {
812        strcpy(bkpinfo->isodir, MONDO_CACHE);
813    }
814    strcpy(bkpinfo->prefix, STD_PREFIX);
815    sensibly_set_tmpdir_and_scratchdir();
816
817    bkpinfo->optimal_set_size = 0;
818    strcpy(bkpinfo->include_paths, "/");
819    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
820    bkpinfo->include_paths[0] = '\0';
821    bkpinfo->exclude_paths[0] = '\0';
822    bkpinfo->restore_path[0] = '\0';
823    bkpinfo->call_before_iso[0] = '\0';
824    bkpinfo->call_make_iso[0] = '\0';
825    bkpinfo->call_burn_iso[0] = '\0';
826    bkpinfo->call_after_iso[0] = '\0';
827    bkpinfo->kernel_path[0] = '\0';
828    bkpinfo->nfs_mount[0] = '\0';
829    bkpinfo->nfs_user = NULL;
830    bkpinfo->nfs_remote_dir[0] = '\0';
831    bkpinfo->postnuke_tarball[0] = '\0';
832    bkpinfo->wipe_media_first = FALSE;
833    bkpinfo->differential = 0;
834    bkpinfo->please_dont_eject = FALSE;
835    bkpinfo->cdrw_speed = 0;
836    bkpinfo->manual_cd_tray = FALSE;
837    bkpinfo->nonbootable_backup = FALSE;
838    bkpinfo->make_cd_use_lilo = FALSE;
839    bkpinfo->use_obdr = FALSE;
840    bkpinfo->restore_mode = interactive;
841}
842
843
844
845
846/**
847 * Get the remaining free space (in MB) on @p partition.
848 * @param partition The partition to check free space on (either a device or a mountpoint).
849 * @return The free space on @p partition, in MB.
850 */
851long free_space_on_given_partition(char *partition)
852{
853    char *out_sz = NULL;
854    char *command = NULL;
855    long res;
856
857    assert_string_is_neither_NULL_nor_zerolength(partition);
858
859    mr_asprintf(&command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
860    if (system(command)) {
861        mr_free(command);
862        return (-1);
863    }                           // partition does not exist
864    mr_free(command);
865
866    mr_asprintf(&command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
867            partition);
868    mr_asprintf(&out_sz, "%s", call_program_and_get_last_line_of_output(command));
869    mr_free(command);
870
871    if (strlen(out_sz) == 0) {
872        mr_free(out_sz);
873        return (-1);
874    }                           // error within df, probably
875    res = atol(out_sz);
876    mr_free(out_sz);
877    return (res);
878}
879
880
881
882/**
883 * Check the user's system for sanity. Checks performed:
884 * - make sure user has enough RAM (32mb required, 64mb recommended)
885 * - make sure user has enough free space in @c /
886 * - check kernel for ramdisk support
887 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
888 * - make sure CD-ROM is unmounted
889 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
890 *
891 * @return number of problems with the user's setup (0 for success)
892 */
893int some_basic_system_sanity_checks()
894{
895
896    /*@ buffers ************ */
897    char *tmp = NULL;
898
899    /*@ int's *************** */
900    int retval = 0;
901
902    mvaddstr_and_log_it(g_currentY, 0,
903                        "Checking sanity of your Linux distribution");
904#ifndef __FreeBSD__
905    if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
906        && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
907        log_it
908            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
909        run_program_and_log_output
910            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
911    }
912    mr_asprintf(&tmp, "%s", call_program_and_get_last_line_of_output("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
913    if (atol(tmp) < 35000) {
914        retval++;
915        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
916    }
917    if (atol(tmp) < 66000) {
918        log_to_screen
919            ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
920    }
921    mr_free(tmp);
922#endif
923
924    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
925        retval++;
926        log_to_screen
927            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
928        fatal_error
929            ("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. :)");
930    }
931#ifndef __FreeBSD__
932    if (run_program_and_log_output
933        ("grep ramdisk /proc/devices", FALSE)) {
934        /* Some SuSE have ramdisk as modules, so insert it first, then test again */
935        run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
936        if (run_program_and_log_output
937            ("grep ramdisk /proc/devices", FALSE)) {
938            if (!ask_me_yes_or_no
939                ("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?"))
940            {
941                //          retval++;
942                log_to_screen
943                    ("It looks as if your kernel lacks ramdisk and initrd support.");
944                log_to_screen
945                    ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
946            }
947        }
948    }
949#endif
950    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
951    retval += whine_if_not_found("mkisofs");
952    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
953        retval += whine_if_not_found("cdrecord");
954    }
955    retval += whine_if_not_found("bzip2");
956    retval += whine_if_not_found("gzip");
957    retval += whine_if_not_found("awk");
958    retval += whine_if_not_found("md5sum");
959    retval += whine_if_not_found("strings");
960    retval += whine_if_not_found("mindi");
961    retval += whine_if_not_found("buffer");
962
963    // abort if Windows partition but no ms-sys and parted
964    if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
965        log_to_screen("I think you have a Windows 9x partition.");
966        retval += whine_if_not_found("parted");
967    }
968
969    if (!find_home_of_exe("cmp")) {
970        if (!find_home_of_exe("true")) {
971            whine_if_not_found("cmp");
972        } else {
973            log_to_screen
974                ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
975            if (run_program_and_log_output
976                ("cp -f `which true` /usr/bin/cmp", 0)) {
977                fatal_error("Failed to create dummy 'cmp' file.");
978            }
979        }
980    }
981    run_program_and_log_output
982        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
983    mr_asprintf(&tmp, "%s", call_program_and_get_last_line_of_output("mount | grep -E \"cdr(om|w)\""));
984    if (strcmp("", tmp)) {
985        if (strstr(tmp, "autofs")) {
986            log_to_screen
987                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
988            log_to_screen
989                ("if a CD actually is inserted. If a CD is inserted, please");
990            log_to_screen("eject it. Thank you.");
991            log_it
992                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
993        } else
994            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
995            retval++;
996            mr_free(tmp);
997            fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
998        }
999    }
1000    mr_free(tmp);
1001
1002    run_program_and_log_output("cat /etc/fstab", 5);
1003#ifdef __FreeBSD__
1004    run_program_and_log_output("vinum printconfig", 5);
1005#else
1006    run_program_and_log_output("cat /etc/raidtab", 5);
1007#endif
1008
1009    if (run_program_and_log_output("mindi -V", 1)) {
1010        log_to_screen("Could not ascertain mindi's version number.");
1011        log_to_screen
1012            ("You have not installed Mondo and/or Mindi properly.");
1013        log_to_screen("Please uninstall and reinstall them both.");
1014        fatal_error("Please reinstall Mondo and Mindi.");
1015    }
1016    mr_asprintf(&tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1017    if (run_program_and_log_output(tmp, 5)) {
1018        mr_free(tmp);
1019        mr_asprintf(&tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1020        log_to_screen(tmp);
1021        log_to_screen
1022            ("Please run that command by hand and examine /var/log/mindi.log");
1023        log_to_screen
1024            ("for more information. Perhaps your /etc/fstab file is insane.");
1025        log_to_screen
1026            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1027        retval++;
1028    }
1029    mr_free(tmp);
1030
1031    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1032        && !does_file_exist("/etc/raidtab")) {
1033        log_to_screen
1034            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1035        create_raidtab_from_mdstat("/etc/raidtab");
1036    }
1037
1038    if (retval) {
1039        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1040    } else {
1041        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1042    }
1043    return (retval);
1044}
1045
1046/**
1047 * Retrieve the line containing @p label from the config file.
1048 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1049 * @param label What to read from the file.
1050 * @param value Where to put it.
1051 * @return 0 for success, 1 for failure.
1052 */
1053int read_cfg_var(char *config_file, char *label, char *value)
1054{
1055    /*@ buffer ****************************************************** */
1056    char *command = NULL;
1057    char *tmp = NULL;
1058
1059    /*@ end vars *************************************************** */
1060
1061    assert_string_is_neither_NULL_nor_zerolength(config_file);
1062    assert_string_is_neither_NULL_nor_zerolength(label);
1063    if (!does_file_exist(config_file)) {
1064        mr_asprintf(&tmp, "(read_cfg_var) Cannot find %s config file", config_file);
1065        log_to_screen(tmp);
1066        mr_free(tmp);
1067
1068        value[0] = '\0';
1069        return (1);
1070    } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1071        log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1072        return (0);
1073    } else {
1074        mr_asprintf(&command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1075        strcpy(value, call_program_and_get_last_line_of_output(command));
1076        mr_free(command);
1077
1078        if (strlen(value) == 0) {
1079            return (1);
1080        } else {
1081            return (0);
1082        }
1083    }
1084}
1085
1086
1087
1088/**
1089 * Remount @c supermount if it was unmounted earlier.
1090 */
1091void remount_supermounts_if_necessary()
1092{
1093    if (g_remount_cdrom_at_end) {
1094        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1095    }
1096    if (g_remount_floppy_at_end) {
1097        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1098    }
1099}
1100
1101/**
1102 * Unmount @c supermount if it's mounted.
1103 */
1104void unmount_supermounts_if_necessary()
1105{
1106    if (run_program_and_log_output
1107        ("mount | grep cdrom | grep super", FALSE) == 0) {
1108        g_remount_cdrom_at_end = TRUE;
1109        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1110    }
1111    if (run_program_and_log_output
1112        ("mount | grep floppy | grep super", FALSE) == 0) {
1113        g_remount_floppy_at_end = TRUE;
1114        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1115    }
1116}
1117
1118/**
1119 * Whether we had to stop autofs (if so, restart it at end).
1120 */
1121bool g_autofs_stopped = FALSE;
1122
1123/**
1124 * Path to the autofs initscript ("" if none exists).
1125 */
1126char g_autofs_exe[MAX_STR_LEN];
1127
1128/**
1129 * Autofs initscript in Xandros Linux distribution.
1130 */
1131#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1132
1133/**
1134 * Autofs initscript in most Linux distributions.
1135 */
1136#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1137
1138/**
1139 * If autofs is mounted, stop it (restart at end).
1140 */
1141void stop_autofs_if_necessary()
1142{
1143    char *tmp = NULL;
1144
1145    g_autofs_exe[0] = '\0';
1146    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1147        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1148    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1149        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1150    }
1151
1152    if (!g_autofs_exe[0]) {
1153        log_msg(3, "No autofs detected.");
1154    } else {
1155        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1156        // FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1157        mr_asprintf(&tmp, "%s stop", g_autofs_exe);
1158        if (run_program_and_log_output(tmp, 2)) {
1159            log_it("Failed to stop autofs - I assume it wasn't running");
1160        } else {
1161            g_autofs_stopped = TRUE;
1162            log_it("Stopped autofs OK");
1163        }
1164        mr_free(tmp);
1165    }
1166}
1167
1168/**
1169 * If autofs was stopped earlier, restart it.
1170 */
1171void restart_autofs_if_necessary()
1172{
1173    char *tmp = NULL;
1174
1175    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1176        log_msg(3, "No autofs detected.");
1177        return;
1178    }
1179    mr_asprintf(&tmp, "%s start", g_autofs_exe);
1180    if (run_program_and_log_output(tmp, 2)) {
1181        log_it("Failed to start autofs");
1182    } else {
1183        g_autofs_stopped = FALSE;
1184        log_it("Started autofs OK");
1185    }
1186    mr_free(tmp);
1187}
1188
1189
1190/**
1191 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1192 */
1193void mount_boot_if_necessary()
1194{
1195    char *tmp = NULL;
1196    char *command = NULL;
1197
1198    log_msg(1, "Started sub");
1199    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1200    g_boot_mountpt[0] = '\0';
1201    log_msg(4, "Done. Great. Seeting command to something");
1202    mr_asprintf(&command, "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[    ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1203    log_msg(4, "Cool. Command = '%s'", command);
1204    mr_asprintf(&tmp, "%s", call_program_and_get_last_line_of_output(command));
1205    mr_free(command);
1206
1207    log_msg(4, "tmp = '%s'", tmp);
1208    if (tmp[0]) {
1209        log_it("/boot is at %s according to /etc/fstab", tmp);
1210        mr_asprintf(&command, "mount | grep -Ew '/boot'");
1211        mr_free(tmp);
1212        mr_asprintf(&tmp, "%s", call_program_and_get_last_line_of_output(command));
1213        mr_free(command);
1214
1215        if (!strcmp(tmp,"")) {
1216            if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1217                if (!run_program_and_log_output("mount /boot", 5)) {
1218                    strcpy(g_boot_mountpt, "/boot");
1219                    log_msg(1, "Mounted /boot");
1220                } else {
1221                    log_it("...ignored cos it's a label or uuid :-)");
1222                }
1223            } else {
1224                mr_asprintf(&command, "mount | grep -E '^%s'", tmp);
1225                log_msg(3, "command = %s", command);
1226                if (run_program_and_log_output(command, 5)) {
1227                    strcpy(g_boot_mountpt, tmp);
1228                    mr_free(tmp);
1229                    mr_asprintf(&tmp, "%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1230                    log_it(tmp);
1231                    mr_free(tmp);
1232
1233                    mr_asprintf(&tmp, "mount %s", g_boot_mountpt);
1234                    if (run_program_and_log_output(tmp, 5)) {
1235                        g_boot_mountpt[0] = '\0';
1236                        log_msg(1, "Plan B");
1237                        if (!run_program_and_log_output("mount /boot", 5)) {
1238                            strcpy(g_boot_mountpt, "/boot");
1239                            log_msg(1, "Plan B worked");
1240                        } else {
1241                            log_msg(1,
1242                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1243                        }
1244                    }
1245                    mr_free(tmp);
1246                }
1247                mr_free(command);
1248            }
1249        }
1250    }
1251    log_msg(1, "Ended sub");
1252}
1253
1254
1255/**
1256 * If we mounted /boot earlier, unmount it.
1257 */
1258void unmount_boot_if_necessary()
1259{
1260    char *tmp = NULL;
1261
1262    log_msg(3, "starting");
1263    if (g_boot_mountpt[0]) {
1264        mr_asprintf(&tmp, "umount %s", g_boot_mountpt);
1265        if (run_program_and_log_output(tmp, 5)) {
1266            log_it("WARNING - unable to unmount /boot");
1267        }
1268        mr_free(tmp);
1269    }
1270    log_msg(3, "leaving");
1271}
1272
1273
1274
1275/**
1276 * Write a line to a configuration file. Writes a line of the form,
1277 * @c label @c value.
1278 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1279 * @param label What to call this bit of data you're writing.
1280 * @param value The bit of data you're writing.
1281 * @return 0 for success, 1 for failure.
1282 */
1283int write_cfg_var(char *config_file, char *label, char *value)
1284{
1285    /*@ buffers ***************************************************** */
1286    char *command = NULL;
1287    char *tempfile = NULL;
1288    char *tmp = NULL;
1289
1290
1291    /*@ end vars *************************************************** */
1292    assert_string_is_neither_NULL_nor_zerolength(config_file);
1293    assert_string_is_neither_NULL_nor_zerolength(label);
1294    assert(value != NULL);
1295    if (!does_file_exist(config_file)) {
1296        mr_asprintf(&tmp, "(write_cfg_file) Cannot find %s config file", config_file);
1297        log_to_screen(tmp);
1298        mr_free(tmp);
1299        return (1);
1300    }
1301    mr_asprintf(&tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1302    if (does_file_exist(config_file)) {
1303        mr_asprintf(&command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1304        paranoid_system(command);
1305        mr_free(command);
1306    }
1307    mr_asprintf(&command, "echo \"%s %s\" >> %s", label, value, tempfile);
1308    paranoid_system(command);
1309    mr_free(command);
1310
1311    mr_asprintf(&command, "mv -f %s %s", tempfile, config_file);
1312    paranoid_system(command);
1313    mr_free(command);
1314    unlink(tempfile);
1315    mr_free(tempfile);
1316    return (0);
1317}
1318
1319
1320/**
1321 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1322 * information to the logfile.
1323 */
1324void standard_log_debug_msg(int debug_level, const char *szFile,
1325                            const char *szFunction, int nLine,
1326                            const char *fmt, ...)
1327{
1328    va_list args;
1329    int i;
1330    static int depth = 0;
1331    FILE *fout;
1332
1333    if (depth > 5) {
1334        depth--;
1335        return;
1336    }
1337    depth++;
1338
1339    if (debug_level <= g_loglevel) {
1340        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1341            return;
1342        }       // fatal_error("Failed to openout to logfile - sheesh..."); }
1343
1344        // add tabs to distinguish log levels
1345        if (debug_level > 0) {
1346            for (i = 1; i < debug_level; i++)
1347                fprintf(fout, "\t");
1348            if (getpid() == g_main_pid)
1349                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1350            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1351                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1352            else
1353                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1354        }
1355        va_start(args, fmt);
1356        vfprintf(fout, fmt, args);
1357        va_end(args);
1358
1359        // do not slow down the progran if standard debug level
1360        // must be enabled: if no flush, the log won't be up-to-date if there
1361        // is a segfault
1362        //if (g_dwDebugLevel != 1)
1363
1364        fprintf(fout, "\n");
1365        paranoid_fclose(fout);
1366    }
1367    depth--;
1368}
1369
1370/**
1371 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1372 */
1373void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1374                       ...) = standard_log_debug_msg;
1375
1376
1377/**
1378 * If @p y, malloc @p x, else free @p x.
1379 * @bug This function seems orphaned. Please remove.
1380 */
1381#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1382
1383/**
1384 * Allocate or free important globals, depending on @p mal.
1385 * @param mal If TRUE, malloc; if FALSE, free.
1386 */
1387void do_libmondo_global_strings_thing(int mal)
1388{
1389    if (mal) {
1390        malloc_string(g_boot_mountpt);
1391        malloc_string(g_mondo_home);
1392        /*
1393        malloc_string(g_tmpfs_mountpt);
1394        */
1395        malloc_string(g_serial_string);
1396        malloc_string(g_magicdev_command);
1397    } else {
1398        paranoid_free(g_boot_mountpt);
1399        paranoid_free(g_mondo_home);
1400        /*
1401        paranoid_free(g_tmpfs_mountpt);
1402        */
1403        paranoid_free(g_serial_string);
1404        paranoid_free(g_magicdev_command);
1405
1406    }
1407
1408    /*
1409       char**list_of_arrays[] = {
1410       &g_boot_mountpt,
1411       &g_mondo_home,
1412       &g_tmpfs_mountpt,
1413       &g_serial_string,
1414       &g_magicdev_command,
1415       NULL};
1416
1417       char**ppcurr;
1418       int i;
1419
1420       for(i=0;list_of_arrays[i];i++)
1421       {
1422       log_msg(5, "Allocating %d", i);
1423       ppcurr = list_of_arrays[i];
1424       if (mal)
1425       { *ppcurr = malloc(MAX_STR_LEN); }
1426       else
1427       {
1428       if (*ppcurr)
1429       {
1430       free(*ppcurr);
1431       }
1432       }
1433       }
1434       log_msg(5, "Returning");
1435     */
1436}
1437
1438/**
1439 * Allocate important globals.
1440 * @see do_libmondo_global_strings_thing
1441 */
1442void malloc_libmondo_global_strings(void)
1443{
1444    do_libmondo_global_strings_thing(1);
1445}
1446
1447/**
1448 * Free important globals.
1449 * @see do_libmondo_global_strings_thing
1450 */
1451void free_libmondo_global_strings(void)
1452{
1453    do_libmondo_global_strings_thing(0);
1454}
1455
1456
1457
1458/**
1459 * Stop @c magicdev if it's running.
1460 * The command used to start it is saved in @p g_magicdev_command.
1461 */
1462void stop_magicdev_if_necessary()
1463{
1464    strcpy(g_magicdev_command,
1465           call_program_and_get_last_line_of_output
1466           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1467    if (g_magicdev_command[0]) {
1468        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1469        paranoid_system("killall magicdev");
1470    }
1471}
1472
1473
1474/**
1475 * Restart magicdev if it was stopped.
1476 */
1477void restart_magicdev_if_necessary()
1478{
1479    char *tmp = NULL;
1480
1481    if (g_magicdev_command && g_magicdev_command[0]) {
1482        mr_asprintf(&tmp, "%s &", g_magicdev_command);
1483        paranoid_system(tmp);
1484        mr_free(tmp);
1485    }
1486}
1487
1488/* @} - end of utilityGroup */
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