source: branches/2.2.9/mondo/src/common/libmondo-tools.c @ 2348

Last change on this file since 2348 was 2348, checked in by Bruno Cornec, 11 years ago

Improve logging (minor)

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File size: 39.5 KB
Line 
1/*
2   $Id: libmondo-tools.c 2348 2009-08-27 11:54:25Z 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 2348 2009-08-27 11:54:25Z 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;
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;
424    char call_before_iso_user[MAX_STR_LEN] = "\0";
425    /*
426    long avm = 0;
427    int rdsiz_MB;
428    */
429    char *iso_dev;
430    char *iso_mnt;
431    char *iso_tmp;
432    char *iso_path;
433
434    assert(bkpinfo != NULL);
435    malloc_string(command);
436    malloc_string(mtpt);
437    malloc_string(hostname);
438    malloc_string(cdr_exe);
439    malloc_string(tmp);
440    malloc_string(iso_dev);
441    malloc_string(iso_mnt);
442    malloc_string(iso_tmp);
443    malloc_string(iso_path);
444    bkpinfo->optimal_set_size =
445        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
446        1024;
447
448    log_msg(1, "Foo");
449    if (bkpinfo->backup_media_type == tape) {
450        log_msg(1, "Bar");
451        sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
452        log_msg(1, "tmp = '%s'", tmp);
453        if (run_program_and_log_output(tmp, 3)) {
454            fatal_error
455                ("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.");
456        }
457    }
458    make_hole_for_dir(bkpinfo->scratchdir);
459    if (bkpinfo->backup_media_type == iso)
460        make_hole_for_dir(bkpinfo->isodir);
461
462    run_program_and_log_output("uname -a", 5);
463    run_program_and_log_output("cat /etc/*-release", 5);
464    run_program_and_log_output("cat /etc/*issue*", 5);
465#ifdef __FreeBSD__
466#else
467    run_program_and_log_output("cat /proc/cpuinfo", 5);
468    run_program_and_log_output
469        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
470         5);
471#endif
472
473    if (bkpinfo->use_lzo) {
474        strcpy(bkpinfo->zip_exe, "lzop");
475        strcpy(bkpinfo->zip_suffix, "lzo");
476    } else if (bkpinfo->use_gzip) {
477        strcpy(bkpinfo->zip_exe, "gzip");
478        strcpy(bkpinfo->zip_suffix, "gz");
479    } else if (bkpinfo->compression_level != 0) {
480        strcpy(bkpinfo->zip_exe, "bzip2");
481        strcpy(bkpinfo->zip_suffix, "bz2");
482    } else {
483        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
484    }
485
486// DVD
487
488    if (bkpinfo->backup_media_type == dvd) {
489        if (find_home_of_exe("growisofs")) {
490            strcpy(cdr_exe, "growisofs");
491        }                       // unlikely to be used
492        else {
493            fatal_error("Please install growisofs.");
494        }
495        if (bkpinfo->nonbootable_backup) {
496            mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
497        } else if
498#ifdef __FreeBSD__
499            (TRUE)
500#else
501            (bkpinfo->make_cd_use_lilo)
502#endif
503#ifdef __IA64__
504    {
505        mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
506    }
507#else
508    {
509        mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
510    }
511#endif
512        else
513        {
514            mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
515        }
516        if (bkpinfo->manual_cd_tray) {
517            paranoid_free(mondo_mkisofs_sz);
518            fatal_error("Manual CD tray + DVD not supported yet.");
519            // -m isn't supported by growisofs, BTW...
520        } else {
521            sprintf(bkpinfo->call_make_iso,
522                    "%s %s -Z %s . 2>> _ERR_",
523                    mondo_mkisofs_sz,
524                    "", bkpinfo->media_device);
525            paranoid_free(mondo_mkisofs_sz);
526        }
527        if (getenv ("SUDO_COMMAND")) {
528            sprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
529            if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
530                popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
531                fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
532            }       
533        }
534        log_msg(2, "call_make_iso (DVD res) is ... %s",
535                bkpinfo->call_make_iso);
536    }                           // end of DVD code
537
538// CD-R or CD-RW
539    if (bkpinfo->backup_media_type == cdrw
540        || bkpinfo->backup_media_type == cdr) {
541        if (!bkpinfo->manual_cd_tray) {
542            mr_asprintf(&extra_cdrom_params, "-waiti ");
543        }
544        if (bkpinfo->backup_media_type == cdrw) {
545            mr_asprintf(&extra_cdrom_params, "blank=fast ");
546        }
547        if (find_home_of_exe("cdrecord")) {
548            strcpy(cdr_exe, "cdrecord");
549        } else if (find_home_of_exe("dvdrecord")) {
550            strcpy(cdr_exe, "dvdrecord");
551        } else {
552            fatal_error("Please install either cdrecord or dvdrecord.");
553        }
554        if (bkpinfo->nonbootable_backup) {
555            mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
556        } else if
557#ifdef __FreeBSD__
558            (TRUE)
559#else
560            (bkpinfo->make_cd_use_lilo)
561#endif
562#ifdef __IA64__
563    {
564        mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
565    }
566#else
567    {
568        mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
569    }
570#endif
571        else
572        {
573            mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
574        }
575        if (bkpinfo->manual_cd_tray) {
576            if (bkpinfo->call_before_iso[0] == '\0') {
577            sprintf(bkpinfo->call_before_iso,
578                        "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_",
579                        mondo_mkisofs_sz, bkpinfo->tmpdir);
580                } else {
581                strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
582                sprintf (bkpinfo->call_before_iso,
583                                    "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )",
584                        mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
585            }
586            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
587            sprintf(bkpinfo->call_make_iso,
588                    "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS,
589                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
590                    extra_cdrom_params, bkpinfo->media_device,
591                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
592        } else {
593            sprintf(bkpinfo->call_make_iso,
594                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
595                    mondo_mkisofs_sz, cdr_exe,
596                    (bkpinfo->please_dont_eject) ? " " : "-eject",
597                    extra_cdrom_params, bkpinfo->media_device,
598                    bkpinfo->cdrw_speed);
599        }
600        paranoid_free(mondo_mkisofs_sz);
601        paranoid_free(extra_cdrom_params);
602    }                           // end of CD code
603
604    /*
605       if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
606       {
607       sprintf (tmp,
608       "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
609       bkpinfo->media_device, bkpinfo->internal_tape_block_size);
610       if (system(tmp))
611       {
612       retval++;
613       fprintf (stderr,
614       "Cannot write to tape device. Is the tape set read-only?\n");
615       }
616       } // end of tape code
617     */
618
619
620    if (bkpinfo->backup_media_type == iso) {
621
622/* Patch by Conor Daly <conor.daly@met.ie>
623 * 23-june-2004
624 * Break up isodir into iso_mnt and iso_path
625 * These will be used along with iso-dev at restore time
626 * to locate the ISOs where ever they're mounted
627 */
628
629        log_it("isodir = %s", bkpinfo->isodir);
630        sprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1",
631                bkpinfo->isodir);
632        log_it("command = %s", command);
633        log_it("res of it = %s",
634               call_program_and_get_last_line_of_output(command));
635        sprintf(iso_dev, "%s",
636                call_program_and_get_last_line_of_output(command));
637        sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
638        write_one_liner_data_file(tmp,
639                                  call_program_and_get_last_line_of_output
640                                  (command));
641
642        sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
643                iso_dev);
644        log_it("command = %s", command);
645        log_it("res of it = %s",
646               call_program_and_get_last_line_of_output(command));
647        sprintf(iso_mnt, "%s",
648                call_program_and_get_last_line_of_output(command));
649        sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
650        write_one_liner_data_file(tmp,
651                                  call_program_and_get_last_line_of_output
652                                  (command));
653        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
654        sprintf(iso_tmp, "%s", bkpinfo->isodir);
655        if (strlen(iso_tmp) < strlen(iso_mnt)) {
656            iso_path[0] = '\0';
657        } else {
658            sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
659        }
660        sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
661        write_one_liner_data_file(tmp, iso_path);
662        log_it("isodir: %s", iso_path);
663        sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
664        write_one_liner_data_file(tmp, bkpinfo->prefix);
665        log_it("iso-prefix: %s",  bkpinfo->prefix);
666
667/* End patch */
668    }                           // end of iso code
669
670    if (bkpinfo->backup_media_type == nfs) {
671        strcpy(hostname, bkpinfo->nfs_mount);
672        colon = strchr(hostname, ':');
673        if (!colon) {
674            log_it("nfs mount doesn't have a colon in it");
675            retval++;
676        } else {
677            struct hostent *hent;
678
679            *colon = '\0';
680            hent = gethostbyname(hostname);
681            if (!hent) {
682                log_it("Can't resolve NFS mount (%s): %s", hostname,
683                       hstrerror(h_errno));
684                retval++;
685            } else {
686                mr_asprintf(&ip_address, "%s", inet_ntoa((struct in_addr) *((struct in_addr *) hent->h_addr)));
687                mr_strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
688                strcpy(bkpinfo->nfs_mount, ip_address);
689                paranoid_free(ip_address);
690            }
691        }
692        store_nfs_config();
693    }
694
695    log_it("Finished processing incoming params");
696    if (retval) {
697        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
698    }
699    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
700        log_it("tmpdir or scratchdir are blank/missing");
701        retval++;
702    }
703    if (bkpinfo->include_paths[0] == '\0') {
704        //      fatal_error ("Why no backup path?");
705        strcpy(bkpinfo->include_paths, "/");
706    }
707    chmod(bkpinfo->scratchdir, 0700);
708    g_backup_media_type = bkpinfo->backup_media_type;
709    paranoid_free(mtpt);
710    paranoid_free(command);
711    paranoid_free(hostname);
712    paranoid_free(cdr_exe);
713    paranoid_free(tmp);
714    paranoid_free(iso_dev);
715    paranoid_free(iso_mnt);
716    paranoid_free(iso_tmp);
717    paranoid_free(iso_path);
718    return (retval);
719}
720
721
722
723/**
724 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
725 * Seeds the random-number generator, loads important modules, checks the sanity
726 * of the user's Linux distribution, and deletes logfile.
727 * @param bkpinfo The backup information structure. Will be initialized.
728 * @return number of errors (0 for success)
729 */
730int pre_param_configuration()
731{
732    int res = 0;
733    char *tmp = NULL;
734
735    make_hole_for_dir(MNT_CDROM);
736    assert(bkpinfo != NULL);
737    srandom((unsigned long) (time(NULL)));
738    insmod_crucial_modules();
739    if (bkpinfo->disaster_recovery) {
740        if (!does_nonMS_partition_exist()) {
741            fatal_error
742                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
743        }
744    }
745
746    unlink(MONDO_TRACEFILE);
747    mr_asprintf(&tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
748    run_program_and_log_output(tmp, FALSE);
749    paranoid_free(tmp);
750    if (find_and_store_mondoarchives_home(g_mondo_home)) {
751        fprintf(stderr,
752                "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");
753        res++;
754        return (res);
755    }
756    res += some_basic_system_sanity_checks();
757    if (res) {
758        log_it("Your distribution did not pass Mondo's sanity test.");
759    }
760    g_current_media_number = 1;
761    bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
762    return (res);
763}
764
765void setup_tmpdir(char *path) {
766
767    char *tmp = NULL;
768    char *p = NULL;
769
770    if ((bkpinfo->tmpdir != NULL) && (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL)) {
771        /* purging a potential old tmpdir */
772        log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
773        mr_asprintf(&tmp,"rm -Rf %s",bkpinfo->tmpdir);
774        (void)system(tmp);
775        paranoid_free(tmp);
776    }
777
778    if (path != NULL) {
779        mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", path);
780    } else if (getenv("TMPDIR")) {
781        mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
782    } else if (getenv("TMP")) {
783        mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
784    } else {
785        mr_asprintf(&tmp, "/tmp/mondo.tmp.XXXXXX");
786    }
787    p = mkdtemp(tmp);
788    if (p == NULL) {
789        log_it("Failed to create global tmp directory %s for Mondo.",tmp);
790        finish(-1);
791    }
792    strcpy(bkpinfo->tmpdir,p);
793    paranoid_free(tmp);
794}
795
796
797/**
798 * Reset all fields of the backup information structure to a sensible default.
799 * @param bkpinfo The @c bkpinfo to reset.
800 */
801void reset_bkpinfo()
802{
803    int i;
804
805    log_msg(1, "Hi");
806    assert(bkpinfo != NULL);
807    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
808
809    bkpinfo->media_device[0] = '\0';
810    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
811        bkpinfo->media_size[i] = -1;
812    }
813    bkpinfo->boot_loader = '\0';
814    bkpinfo->boot_device[0] = '\0';
815    bkpinfo->zip_exe[0] = '\0';
816    bkpinfo->zip_suffix[0] = '\0';
817    bkpinfo->image_devs[0] = '\0';
818    bkpinfo->compression_level = 3;
819    bkpinfo->use_lzo = FALSE;
820    bkpinfo->use_gzip = FALSE;
821    bkpinfo->do_not_compress_these[0] = '\0';
822    bkpinfo->verify_data = FALSE;
823    bkpinfo->backup_data = FALSE;
824    bkpinfo->restore_data = FALSE;
825    bkpinfo->use_star = FALSE;
826    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
827    bkpinfo->disaster_recovery =
828        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
829    if (bkpinfo->disaster_recovery) {
830        strcpy(bkpinfo->isodir, "/");
831    } else {
832        strcpy(bkpinfo->isodir, MONDO_CACHE);
833    }
834    strcpy(bkpinfo->prefix, STD_PREFIX);
835    sensibly_set_tmpdir_and_scratchdir();
836
837    bkpinfo->optimal_set_size = 0;
838    strcpy(bkpinfo->include_paths, "/");
839    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
840    bkpinfo->include_paths[0] = '\0';
841    bkpinfo->exclude_paths[0] = '\0';
842    bkpinfo->restore_path[0] = '\0';
843    bkpinfo->call_before_iso[0] = '\0';
844    bkpinfo->call_make_iso[0] = '\0';
845    bkpinfo->call_burn_iso[0] = '\0';
846    bkpinfo->call_after_iso[0] = '\0';
847    bkpinfo->kernel_path[0] = '\0';
848    bkpinfo->nfs_mount[0] = '\0';
849    bkpinfo->nfs_user = NULL;
850    bkpinfo->nfs_remote_dir[0] = '\0';
851    bkpinfo->postnuke_tarball[0] = '\0';
852    bkpinfo->wipe_media_first = FALSE;
853    bkpinfo->differential = 0;
854    bkpinfo->please_dont_eject = FALSE;
855    bkpinfo->cdrw_speed = 0;
856    bkpinfo->manual_cd_tray = FALSE;
857    bkpinfo->nonbootable_backup = FALSE;
858    bkpinfo->make_cd_use_lilo = FALSE;
859    bkpinfo->use_obdr = FALSE;
860    bkpinfo->restore_mode = interactive;
861}
862
863
864
865
866/**
867 * Get the remaining free space (in MB) on @p partition.
868 * @param partition The partition to check free space on (either a device or a mountpoint).
869 * @return The free space on @p partition, in MB.
870 */
871long free_space_on_given_partition(char *partition)
872{
873    char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
874    long res;
875
876    assert_string_is_neither_NULL_nor_zerolength(partition);
877
878    sprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
879    if (system(command)) {
880        return (-1);
881    }                           // partition does not exist
882    sprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
883            partition);
884    strcpy(out_sz, call_program_and_get_last_line_of_output(command));
885    if (strlen(out_sz) == 0) {
886        return (-1);
887    }                           // error within df, probably
888    res = atol(out_sz);
889    return (res);
890}
891
892
893
894/**
895 * Check the user's system for sanity. Checks performed:
896 * - make sure user has enough RAM (32mb required, 64mb recommended)
897 * - make sure user has enough free space in @c /
898 * - check kernel for ramdisk support
899 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
900 * - make sure CD-ROM is unmounted
901 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
902 *
903 * @return number of problems with the user's setup (0 for success)
904 */
905int some_basic_system_sanity_checks()
906{
907
908    /*@ buffers ************ */
909    char tmp[MAX_STR_LEN];
910    //  char command[MAX_STR_LEN];
911
912    /*@ int's *************** */
913    int retval = 0;
914
915    mvaddstr_and_log_it(g_currentY, 0,
916                        "Checking sanity of your Linux distribution");
917#ifndef __FreeBSD__
918    if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
919        && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
920        log_it
921            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
922        run_program_and_log_output
923            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
924    }
925    strcpy(tmp,
926           call_program_and_get_last_line_of_output
927           ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
928    if (atol(tmp) < 35000) {
929        retval++;
930        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
931    }
932    if (atol(tmp) < 66000) {
933        log_to_screen
934            ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
935    }
936#endif
937
938    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
939        retval++;
940        log_to_screen
941            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
942        fatal_error
943            ("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. :)");
944    }
945#ifndef __FreeBSD__
946    if (run_program_and_log_output
947        ("grep ramdisk /proc/devices", FALSE)) {
948        /* Some SuSE have ramdisk as modules, so insert it first, then test again */
949        run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
950        if (run_program_and_log_output
951            ("grep ramdisk /proc/devices", FALSE)) {
952            if (!ask_me_yes_or_no
953                ("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?"))
954            {
955                //          retval++;
956                log_to_screen
957                    ("It looks as if your kernel lacks ramdisk and initrd support.");
958                log_to_screen
959                    ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
960            }
961        }
962    }
963#endif
964    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
965    retval += whine_if_not_found("mkisofs");
966    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
967        retval += whine_if_not_found("cdrecord");
968    }
969    retval += whine_if_not_found("bzip2");
970    retval += whine_if_not_found("gzip");
971    retval += whine_if_not_found("awk");
972    retval += whine_if_not_found("md5sum");
973    retval += whine_if_not_found("strings");
974    retval += whine_if_not_found("mindi");
975    retval += whine_if_not_found("buffer");
976
977    // abort if Windows partition but no ms-sys and parted
978    if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
979        log_to_screen("I think you have a Windows 9x partition.");
980        retval += whine_if_not_found("parted");
981    }
982
983    if (!find_home_of_exe("cmp")) {
984        if (!find_home_of_exe("true")) {
985            whine_if_not_found("cmp");
986        } else {
987            log_to_screen
988                ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
989            if (run_program_and_log_output
990                ("cp -f `which true` /usr/bin/cmp", 0)) {
991                fatal_error("Failed to create dummy 'cmp' file.");
992            }
993        }
994    }
995    run_program_and_log_output
996        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
997    strcpy(tmp,
998           call_program_and_get_last_line_of_output
999           ("mount | grep -E \"cdr(om|w)\""));
1000    if (strcmp("", tmp)) {
1001        if (strstr(tmp, "autofs")) {
1002            log_to_screen
1003                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1004            log_to_screen
1005                ("if a CD actually is inserted. If a CD is inserted, please");
1006            log_to_screen("eject it. Thank you.");
1007            log_it
1008                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1009        } else
1010            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1011            retval++;
1012            fatal_error
1013                ("Your CD-ROM drive is mounted. Please unmount it.");
1014        }
1015    }
1016
1017    run_program_and_log_output("cat /etc/fstab", 5);
1018#ifdef __FreeBSD__
1019    run_program_and_log_output("vinum printconfig", 5);
1020#else
1021    run_program_and_log_output("cat /etc/raidtab", 5);
1022#endif
1023
1024    if (run_program_and_log_output("mindi -V", 1)) {
1025        log_to_screen("Could not ascertain mindi's version number.");
1026        log_to_screen
1027            ("You have not installed Mondo and/or Mindi properly.");
1028        log_to_screen("Please uninstall and reinstall them both.");
1029        fatal_error("Please reinstall Mondo and Mindi.");
1030    }
1031    sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1032    if (run_program_and_log_output(tmp, 5)) {
1033        sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1034        log_to_screen(tmp);
1035        log_to_screen
1036            ("Please run that command by hand and examine /var/log/mindi.log");
1037        log_to_screen
1038            ("for more information. Perhaps your /etc/fstab file is insane.");
1039        log_to_screen
1040            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1041        retval++;
1042    }
1043
1044    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1045        && !does_file_exist("/etc/raidtab")) {
1046        log_to_screen
1047            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1048        create_raidtab_from_mdstat("/etc/raidtab");
1049    }
1050
1051    if (retval) {
1052        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1053    } else {
1054        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1055    }
1056    return (retval);
1057}
1058
1059/**
1060 * Retrieve the line containing @p label from the config file.
1061 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1062 * @param label What to read from the file.
1063 * @param value Where to put it.
1064 * @return 0 for success, 1 for failure.
1065 */
1066int read_cfg_var(char *config_file, char *label, char *value)
1067{
1068    /*@ buffer ****************************************************** */
1069    char command[MAX_STR_LEN * 2];
1070    char tmp[MAX_STR_LEN];
1071
1072    /*@ end vars *************************************************** */
1073
1074    assert_string_is_neither_NULL_nor_zerolength(config_file);
1075    assert_string_is_neither_NULL_nor_zerolength(label);
1076    if (!does_file_exist(config_file)) {
1077        sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1078                config_file);
1079        log_to_screen(tmp);
1080        value[0] = '\0';
1081        return (1);
1082    } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1083        log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1084        return (0);
1085    } else {
1086        sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1087                label, config_file);
1088        strcpy(value, call_program_and_get_last_line_of_output(command));
1089        if (strlen(value) == 0) {
1090            return (1);
1091        } else {
1092            return (0);
1093        }
1094    }
1095}
1096
1097
1098
1099/**
1100 * Remount @c supermount if it was unmounted earlier.
1101 */
1102void remount_supermounts_if_necessary()
1103{
1104    if (g_remount_cdrom_at_end) {
1105        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1106    }
1107    if (g_remount_floppy_at_end) {
1108        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1109    }
1110}
1111
1112/**
1113 * Unmount @c supermount if it's mounted.
1114 */
1115void unmount_supermounts_if_necessary()
1116{
1117    if (run_program_and_log_output
1118        ("mount | grep cdrom | grep super", FALSE) == 0) {
1119        g_remount_cdrom_at_end = TRUE;
1120        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1121    }
1122    if (run_program_and_log_output
1123        ("mount | grep floppy | grep super", FALSE) == 0) {
1124        g_remount_floppy_at_end = TRUE;
1125        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1126    }
1127}
1128
1129/**
1130 * Whether we had to stop autofs (if so, restart it at end).
1131 */
1132bool g_autofs_stopped = FALSE;
1133
1134/**
1135 * Path to the autofs initscript ("" if none exists).
1136 */
1137char g_autofs_exe[MAX_STR_LEN];
1138
1139/**
1140 * Autofs initscript in Xandros Linux distribution.
1141 */
1142#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1143
1144/**
1145 * Autofs initscript in most Linux distributions.
1146 */
1147#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1148
1149/**
1150 * If autofs is mounted, stop it (restart at end).
1151 */
1152void stop_autofs_if_necessary()
1153{
1154    char tmp[MAX_STR_LEN];
1155
1156    g_autofs_exe[0] = '\0';
1157    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1158        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1159    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1160        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1161    }
1162
1163    if (!g_autofs_exe[0]) {
1164        log_msg(3, "No autofs detected.");
1165    } else {
1166        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1167// FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1168        sprintf(tmp, "%s stop", g_autofs_exe);
1169        if (run_program_and_log_output(tmp, 2)) {
1170            log_it("Failed to stop autofs - I assume it wasn't running");
1171        } else {
1172            g_autofs_stopped = TRUE;
1173            log_it("Stopped autofs OK");
1174        }
1175    }
1176}
1177
1178/**
1179 * If autofs was stopped earlier, restart it.
1180 */
1181void restart_autofs_if_necessary()
1182{
1183    char tmp[MAX_STR_LEN];
1184
1185    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1186        log_msg(3, "No autofs detected.");
1187        return;
1188    }
1189    sprintf(tmp, "%s start", g_autofs_exe);
1190    if (run_program_and_log_output(tmp, 2)) {
1191        log_it("Failed to start autofs");
1192    } else {
1193        g_autofs_stopped = FALSE;
1194        log_it("Started autofs OK");
1195    }
1196}
1197
1198
1199/**
1200 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1201 */
1202void mount_boot_if_necessary()
1203{
1204    char tmp[MAX_STR_LEN];
1205    char command[MAX_STR_LEN];
1206
1207    log_msg(1, "Started sub");
1208    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1209    g_boot_mountpt[0] = '\0';
1210    log_msg(4, "Done. Great. Seeting command to something");
1211    strcpy(command,
1212           "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[   ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1213    log_msg(4, "Cool. Command = '%s'", command);
1214    strcpy(tmp, call_program_and_get_last_line_of_output(command));
1215    log_msg(4, "tmp = '%s'", tmp);
1216    if (tmp[0]) {
1217        log_it("/boot is at %s according to /etc/fstab", tmp);
1218        strcpy(command, "mount | grep -Ew '/boot'");
1219        strcpy(tmp, call_program_and_get_last_line_of_output(command));
1220        if (!strcmp(tmp,"")) {
1221            if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1222                if (!run_program_and_log_output("mount /boot", 5)) {
1223                    strcpy(g_boot_mountpt, "/boot");
1224                    log_msg(1, "Mounted /boot");
1225                } else {
1226                    log_it("...ignored cos it's a label or uuid :-)");
1227                }
1228            } else {
1229                sprintf(command, "mount | grep -E '^%s'", tmp);
1230                log_msg(3, "command = %s", command);
1231                if (run_program_and_log_output(command, 5)) {
1232                    strcpy(g_boot_mountpt, tmp);
1233                    sprintf(tmp,
1234                            "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1235                            g_boot_mountpt);
1236                    log_it(tmp);
1237                    sprintf(tmp, "mount %s", g_boot_mountpt);
1238                    if (run_program_and_log_output(tmp, 5)) {
1239                        g_boot_mountpt[0] = '\0';
1240                        log_msg(1, "Plan B");
1241                        if (!run_program_and_log_output("mount /boot", 5)) {
1242                            strcpy(g_boot_mountpt, "/boot");
1243                            log_msg(1, "Plan B worked");
1244                        } else {
1245                            log_msg(1,
1246                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1247                        }
1248                    }
1249                }
1250            }
1251        }
1252    }
1253    log_msg(1, "Ended sub");
1254}
1255
1256
1257/**
1258 * If we mounted /boot earlier, unmount it.
1259 */
1260void unmount_boot_if_necessary()
1261{
1262    char tmp[MAX_STR_LEN];
1263
1264    log_msg(3, "starting");
1265    if (g_boot_mountpt[0]) {
1266        sprintf(tmp, "umount %s", g_boot_mountpt);
1267        if (run_program_and_log_output(tmp, 5)) {
1268            log_it("WARNING - unable to unmount /boot");
1269        }
1270    }
1271    log_msg(3, "leaving");
1272}
1273
1274
1275
1276/**
1277 * Write a line to a configuration file. Writes a line of the form,
1278 * @c label @c value.
1279 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1280 * @param label What to call this bit of data you're writing.
1281 * @param value The bit of data you're writing.
1282 * @return 0 for success, 1 for failure.
1283 */
1284int write_cfg_var(char *config_file, char *label, char *value)
1285{
1286    /*@ buffers ***************************************************** */
1287    char command[MAX_STR_LEN * 2];
1288    char tempfile[MAX_STR_LEN];
1289    char tmp[MAX_STR_LEN];
1290
1291
1292    /*@ end vars *************************************************** */
1293    assert_string_is_neither_NULL_nor_zerolength(config_file);
1294    assert_string_is_neither_NULL_nor_zerolength(label);
1295    assert(value != NULL);
1296    if (!does_file_exist(config_file)) {
1297        sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1298                config_file);
1299        log_to_screen(tmp);
1300        return (1);
1301    }
1302    sprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1303    if (does_file_exist(config_file)) {
1304        sprintf(command, "grep -vE '^%s .*$' %s > %s",
1305                label, config_file, tempfile);
1306        paranoid_system(command);
1307    }
1308    sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1309    paranoid_system(command);
1310    sprintf(command, "mv -f %s %s", tempfile, config_file);
1311    paranoid_system(command);
1312    unlink(tempfile);
1313    return (0);
1314}
1315
1316
1317/**
1318 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1319 * information to the logfile.
1320 */
1321void standard_log_debug_msg(int debug_level, const char *szFile,
1322                            const char *szFunction, int nLine,
1323                            const char *fmt, ...)
1324{
1325    va_list args;
1326    int i;
1327    static int depth = 0;
1328    FILE *fout;
1329
1330    if (depth > 5) {
1331        depth--;
1332        return;
1333    }
1334    depth++;
1335
1336    if (debug_level <= g_loglevel) {
1337        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1338            return;
1339        }       // fatal_error("Failed to openout to logfile - sheesh..."); }
1340
1341        // add tabs to distinguish log levels
1342        if (debug_level > 0) {
1343            for (i = 1; i < debug_level; i++)
1344                fprintf(fout, "\t");
1345            if (getpid() == g_main_pid)
1346                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1347            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1348                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1349            else
1350                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1351        }
1352        va_start(args, fmt);
1353        vfprintf(fout, fmt, args);
1354        va_end(args);
1355
1356        // do not slow down the progran if standard debug level
1357        // must be enabled: if no flush, the log won't be up-to-date if there
1358        // is a segfault
1359        //if (g_dwDebugLevel != 1)
1360
1361        fprintf(fout, "\n");
1362        paranoid_fclose(fout);
1363    }
1364    depth--;
1365}
1366
1367/**
1368 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1369 */
1370void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1371                       ...) = standard_log_debug_msg;
1372
1373
1374/**
1375 * If @p y, malloc @p x, else free @p x.
1376 * @bug This function seems orphaned. Please remove.
1377 */
1378#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1379
1380/**
1381 * Allocate or free important globals, depending on @p mal.
1382 * @param mal If TRUE, malloc; if FALSE, free.
1383 */
1384void do_libmondo_global_strings_thing(int mal)
1385{
1386    if (mal) {
1387        malloc_string(g_boot_mountpt);
1388        malloc_string(g_mondo_home);
1389        /*
1390        malloc_string(g_tmpfs_mountpt);
1391        */
1392        malloc_string(g_serial_string);
1393        malloc_string(g_magicdev_command);
1394    } else {
1395        paranoid_free(g_boot_mountpt);
1396        paranoid_free(g_mondo_home);
1397        /*
1398        paranoid_free(g_tmpfs_mountpt);
1399        */
1400        paranoid_free(g_serial_string);
1401        paranoid_free(g_magicdev_command);
1402
1403    }
1404
1405    /*
1406       char**list_of_arrays[] = {
1407       &g_boot_mountpt,
1408       &g_mondo_home,
1409       &g_tmpfs_mountpt,
1410       &g_serial_string,
1411       &g_magicdev_command,
1412       NULL};
1413
1414       char**ppcurr;
1415       int i;
1416
1417       for(i=0;list_of_arrays[i];i++)
1418       {
1419       log_msg(5, "Allocating %d", i);
1420       ppcurr = list_of_arrays[i];
1421       if (mal)
1422       { *ppcurr = malloc(MAX_STR_LEN); }
1423       else
1424       {
1425       if (*ppcurr)
1426       {
1427       free(*ppcurr);
1428       }
1429       }
1430       }
1431       log_msg(5, "Returning");
1432     */
1433}
1434
1435/**
1436 * Allocate important globals.
1437 * @see do_libmondo_global_strings_thing
1438 */
1439void malloc_libmondo_global_strings(void)
1440{
1441    do_libmondo_global_strings_thing(1);
1442}
1443
1444/**
1445 * Free important globals.
1446 * @see do_libmondo_global_strings_thing
1447 */
1448void free_libmondo_global_strings(void)
1449{
1450    do_libmondo_global_strings_thing(0);
1451}
1452
1453
1454
1455/**
1456 * Stop @c magicdev if it's running.
1457 * The command used to start it is saved in @p g_magicdev_command.
1458 */
1459void stop_magicdev_if_necessary()
1460{
1461    strcpy(g_magicdev_command,
1462           call_program_and_get_last_line_of_output
1463           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1464    if (g_magicdev_command[0]) {
1465        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1466        paranoid_system("killall magicdev");
1467    }
1468}
1469
1470
1471/**
1472 * Restart magicdev if it was stopped.
1473 */
1474void restart_magicdev_if_necessary()
1475{
1476    char *tmp;
1477
1478    malloc_string(tmp);
1479    if (g_magicdev_command && g_magicdev_command[0]) {
1480        sprintf(tmp, "%s &", g_magicdev_command);
1481        paranoid_system(tmp);
1482    }
1483    paranoid_free(tmp);
1484}
1485
1486/* @} - end of utilityGroup */
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