source: branches/stable/mondo/src/common/libmondo-tools.c @ 1080

Last change on this file since 1080 was 1080, checked in by bruno, 12 years ago
  • Fix mindi install messages (reported by Andree Leidenfrost)
  • remove paranoid_free/free for mr_free
  • mr_asprintf used everywhere
  • mr_malloc used everywhere
  • Property svn:keywords set to Id
File size: 40.7 KB
Line 
1/* libmondo-tools.c                                  misc tools
2   $Id: libmondo-tools.c 1080 2007-01-28 18:04:41Z 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 <sys/socket.h>
21#include <netdb.h>
22#include <netinet/in.h>
23#include <arpa/inet.h>
24
25/*@unused@*/
26//static char cvsid[] = "$Id: libmondo-tools.c 1080 2007-01-28 18:04:41Z bruno $";
27
28extern int g_tape_buffer_size_MB;
29extern char *g_erase_tmpdir_and_scratchdir;
30extern char *g_serial_string;
31extern bool g_text_mode;
32extern int g_currentY;
33extern int g_current_media_number;
34
35/**
36 * @addtogroup globalGroup
37 * @{
38 */
39bool g_remount_cdrom_at_end,    ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
40 g_remount_floppy_at_end;       ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
41bool g_cd_recovery;             ///< TRUE if we're making an "autonuke" backup.
42double g_kernel_version;
43
44/**
45 * The place where /boot is mounted.
46 */
47char *g_boot_mountpt = NULL;
48
49/**
50 * The location of Mondo's home directory.
51 */
52char *g_mondo_home = NULL;
53
54/**
55 * The serial string (used to differentiate between backups) of the current backup.
56 */
57char *g_serial_string = NULL;
58
59/**
60 * The location where tmpfs is mounted, or "" if it's not mounted.
61 */
62char *g_tmpfs_mountpt = NULL;
63char *g_magicdev_command = NULL;
64
65/**
66 * The default maximum level to log messages at or below.
67 */
68int g_loglevel = DEFAULT_DEBUG_LEVEL;
69
70/* @} - end of globalGroup */
71
72
73extern pid_t g_buffer_pid;
74extern pid_t g_main_pid;
75
76extern t_bkptype g_backup_media_type;
77
78extern bool am_I_in_disaster_recovery_mode(void);
79
80
81/**
82 * @addtogroup utilityGroup
83 * @{
84 */
85/**
86 * Assertion handler. Prints a friendly message to the user,
87 * offering to ignore all, dump core, break to debugger,
88 * exit, or ignore. Intended to be used with an assert() macro.
89 *
90 * @param file The file in which the assertion triggered.
91 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
92 * @param line The line number of the assert() statement.
93 * @param exp The expression that failed (as a string).
94 */
95void _mondo_assert_fail(const char *file,
96                        const char *function, int line, const char *exp)
97{
98    static int ignoring_assertions = 0;
99    bool is_valid = TRUE;
100
101    log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
102           function);
103    if (ignoring_assertions) {
104        log_it("Well, the user doesn't care...");
105        return;
106    }
107#ifndef _XWIN
108    if (!g_text_mode)
109        newtSuspend();
110#endif
111    printf("ASSERTION FAILED: `%s'\n", exp);
112    printf("\tat %s:%d in %s\n\n", file, line, function);
113    printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
114    do {
115        is_valid = TRUE;
116        switch (toupper(getchar())) {
117        case 'A':               // ignore (A)ll
118            ignoring_assertions = 1;
119            break;
120        case 'B':               // a(B)ort
121            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
122            raise(SIGABRT);
123            break;              /* "can't get here" */
124        case 'D':               // (D)ebug, aka asm("int 3")
125#ifdef __IA32__
126            __asm__ __volatile__("int $3"); // break to debugger
127#endif
128            break;
129        case 'E':               // (E)xit
130            fatal_error("Failed assertion -- see above for details");
131            break;              /* "can't get here" */
132        case 'I':               // (I)gnore
133            break;
134            /* These next two work as follows:
135               the `default' catches the user's invalid choice and says so;
136               the '\n' catches the newline on the end and prints the prompt again.
137             */
138        case '\n':
139            printf
140                ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
141            break;
142        default:
143            is_valid = FALSE;
144            printf("Invalid choice.\n");
145            break;
146        }
147    } while (!is_valid);
148
149    if (ignoring_assertions) {
150        log_it("Ignoring ALL assertions from now on.");
151    } else {
152        log_it("Ignoring assertion: %s", exp);
153    }
154
155    getchar();                  // skip \n
156
157#ifndef _XWIN
158    if (!g_text_mode)
159        newtResume();
160#endif
161}
162
163/**
164 * Clean's up users' KDE desktops.
165 * @bug Details about this function are unknown.
166 */
167void clean_up_KDE_desktop_if_necessary(void)
168{
169    char *tmp;
170
171    malloc_string(tmp);
172    strcpy(tmp,
173           "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
174file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
175awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
176else { print $0;};}' $file.old  > $file ; fi ; done");
177    run_program_and_log_output(tmp, 5);
178    mr_free(tmp);
179}
180
181
182/**
183 * Locate mondoarchive's home directory. Searches in /usr/share/mondo,
184 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
185 *
186 * @param home_sz String to store the home directory ("" if it could not be found).
187 * @return 0 for success, nonzero for failure.
188 */
189int find_and_store_mondoarchives_home(char *home_sz)
190{
191    assert(home_sz != NULL);
192    strcpy(home_sz, MONDO_SHARE);
193    return (0);
194}
195
196
197char *get_architecture()
198{
199#ifdef __IA32__
200    return ("i386");
201#endif
202#ifdef __IA64__
203    return ("ia64");
204#endif
205    return ("unknown");
206}
207
208
209
210double get_kernel_version()
211{
212    char *p, tmp[200];
213    double d;
214#ifdef __FreeBSD__
215    // JOSH - FIXME :)
216    d = 5.2;                    // :-)
217#else
218    strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
219    p = strchr(tmp, '.');
220    if (p) {
221        p = strchr(++p, '.');
222        if (p) {
223            while (*p) {
224                *p = *(p + 1);
225                p++;
226            }
227        }
228    }
229//  log_msg(1, "tmp = '%s'", tmp);
230    d = atof(tmp);
231#endif
232    log_msg(1, "g_kernel_version = %f", d);
233    return (d);
234}
235
236
237
238
239
240/**
241 * Get the current time.
242 * @return number of seconds since the epoch.
243 */
244long get_time()
245{
246    return (long) time((void *) 0);
247}
248
249
250
251
252
253
254
255/**
256 * Initialize a RAID volume structure, setting fields to zero. The
257 * actual hard drive is unaffected.
258 *
259 * @param raidrec The RAID volume structure to initialize.
260 * @note This function is system dependent.
261 */
262#ifdef __FreeBSD__
263void initialize_raidrec(struct vinum_volume *raidrec)
264{
265    int i, j;
266    raidrec->volname[0] = '\0';
267    raidrec->plexes = 0;
268    for (i = 0; i < 9; ++i) {
269        raidrec->plex[i].raidlevel = -1;
270        raidrec->plex[i].stripesize = 0;
271        raidrec->plex[i].subdisks = 0;
272        for (j = 0; j < 9; ++j) {
273            strcpy(raidrec->plex[i].sd[j].which_device, "");
274        }
275    }
276}
277#else
278void initialize_raidrec(struct raid_device_record *raidrec)
279{
280    assert(raidrec != NULL);
281    raidrec->raid_device[0] = '\0';
282    raidrec->raid_level = -9;
283    raidrec->persistent_superblock = 1;
284    raidrec->chunk_size = 64;
285    raidrec->parity = -1;
286    raidrec->data_disks.entries = 0;
287    raidrec->spare_disks.entries = 0;
288    raidrec->parity_disks.entries = 0;
289    raidrec->failed_disks.entries = 0;
290    raidrec->additional_vars.entries = 0;
291}
292#endif
293
294
295
296
297/**
298 * Insert modules that Mondo requires.
299 * Currently inserts @c dos, @c fat, @c vfat, and @c osst for Linux;
300 * @c msdosfs and @c ext2fs for FreeBSD.
301 */
302void insmod_crucial_modules(void)
303{
304#ifdef __FreeBSD__
305    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
306    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
307#else
308    system("modprobe dos &> /dev/null");
309    system("modprobe fat &> /dev/null");
310    system("modprobe vfat &> /dev/null");
311    //  system("modprobe osst &> /dev/null");
312#endif
313}
314
315
316/**
317 * Log a trace message to the trace file.
318 * @bug This function seems orphaned. Please remove.
319 */
320void log_trace(char *o)
321{
322    /*@ pointers **************************************************** */
323    FILE *fout;
324
325    /*@ buffers ***************************************************** */
326    char output[MAX_STR_LEN];
327
328    /*@ int    ****************************************************** */
329    int i;
330
331    /*@ end vars *************************************************** */
332
333    if (o[0] == '\0') {
334        return;
335    }
336    strcpy(output, o);
337    i = (int) strlen(output);
338    if (i <= 0) {
339        return;
340    }
341    if (output[i - 1] < 32) {
342        output[i - 1] = '\0';
343    }
344    if (g_text_mode
345        /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
346        printf("%s\n", output);
347    }
348
349    fout = fopen(MONDO_TRACEFILE, "a");
350    if (fout) {
351        fprintf(fout, "%s\n", output);
352        paranoid_fclose(fout);
353    } else {
354        log_OS_error("Cannot write to tracefile");
355    }
356}
357
358
359
360
361
362/**
363 * Finish configuring the backup information structure. Call this function
364 * to set the parameters that depend on those that can be given on the command
365 * line.
366 *
367 * @param bkpinfo The backup information structure. Fields modified/used:
368 * - Used: @c bkpinfo->backup_data
369 * - Used: @c bkpinfo->backup_media_type
370 * - Used: @c bkpinfo->cdrw_speed
371 * - Used: @c bkpinfo->compression_level
372 * - Used: @c bkpinfo->include_paths
373 * - Used: @c bkpinfo->prefix
374 * - Used: @c bkpinfo->isodir
375 * - Used: @c bkpinfo->manual_cd_tray
376 * - Used: @c bkpinfo->make_cd_use_lilo
377 * - Used: @c bkpinfo->media_device
378 * - Used: @c bkpinfo->nfs_mount
379 * - Used: @c bkpinfo->nonbootable_backup
380 * - Used: @c bkpinfo->scratchdir
381 * - Used: @c bkpinfo->tmpdir
382 * - Used: @c bkpinfo->use_lzo
383 * - Modified: @c bkpinfo->call_before_iso
384 * - Modified: @c bkpinfo->call_make_iso
385 * - Modified: @c bkpinfo->optimal_set_size
386 * - Modified: @c bkpinfo->zip_exe
387 * - Modified: @c bkpinfo->zip_suffix
388 *
389 * @return number of errors, or 0 for success.
390 * @note Also creates directories that are specified in the @c bkpinfo structure but
391 * do not exist.
392 */
393int post_param_configuration(struct s_bkpinfo *bkpinfo)
394{
395    char *extra_cdrom_params;
396    char *mondo_mkisofs_sz;
397    char *command;
398    char *mtpt;
399    char *hostname, *ip_address;
400    int retval = 0;
401    long avm = 0;
402    char *colon;
403    char *cdr_exe;
404    char *tmp;
405    char call_before_iso_user[MAX_STR_LEN] = "\0";
406    int rdsiz_MB;
407    char *iso_dev;
408    char *iso_mnt;
409    char *iso_tmp;
410    char *iso_path;
411
412    assert(bkpinfo != NULL);
413    malloc_string(extra_cdrom_params);
414    malloc_string(mondo_mkisofs_sz);
415    malloc_string(command);
416    malloc_string(mtpt);
417    malloc_string(hostname);
418    malloc_string(ip_address);
419    malloc_string(cdr_exe);
420    malloc_string(tmp);
421    malloc_string(iso_dev);
422    malloc_string(iso_mnt);
423    malloc_string(iso_tmp);
424    malloc_string(iso_path);
425    bkpinfo->optimal_set_size =
426        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
427        1024;
428
429    log_msg(1, "Foo");
430    if (bkpinfo->backup_media_type == tape) {
431        log_msg(1, "Bar");
432        sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
433        log_msg(1, "tmp = '%s'", tmp);
434        if (run_program_and_log_output(tmp, 3)) {
435            fatal_error
436                ("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.");
437        }
438    }
439    make_hole_for_dir(bkpinfo->scratchdir);
440    make_hole_for_dir(bkpinfo->tmpdir);
441    if (bkpinfo->backup_media_type == iso)
442        make_hole_for_dir(bkpinfo->isodir);
443
444    run_program_and_log_output("uname -a", 5);
445    run_program_and_log_output("cat /etc/*-release", 5);
446    run_program_and_log_output("cat /etc/*issue*", 5);
447    sprintf(g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
448    sprintf(command, "mkdir -p %s", g_tmpfs_mountpt);
449    paranoid_system(command);
450    rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
451#ifdef __FreeBSD__
452    strcpy(tmp,
453           call_program_and_get_last_line_of_output
454           ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
455    avm += atol(tmp);
456    strcpy(tmp,
457           call_program_and_get_last_line_of_output
458           ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
459    avm += atol(tmp);
460    sprintf(command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
461            g_tmpfs_mountpt);
462#else
463    strcpy(tmp,
464           call_program_and_get_last_line_of_output
465           ("free | grep ':' | tr -s ' ' '\t' | cut -f2 | head -n1"));
466    avm += atol(tmp);
467    sprintf(command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
468            g_tmpfs_mountpt, rdsiz_MB, 'm');
469    run_program_and_log_output("cat /proc/cpuinfo", 5);
470    run_program_and_log_output
471        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
472         5);
473#endif
474    if (avm / 1024 > rdsiz_MB * 3) {
475        if (run_program_and_log_output(command, 5)) {
476            g_tmpfs_mountpt[0] = '\0';
477            log_it("Failed to mount tmpfs");
478        } else {
479            log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
480        }
481    } else {
482        g_tmpfs_mountpt[0] = '\0';
483        log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
484    }
485
486    if (bkpinfo->use_lzo) {
487        strcpy(bkpinfo->zip_exe, "lzop");
488        strcpy(bkpinfo->zip_suffix, "lzo");
489    } else if (bkpinfo->use_gzip) {
490        strcpy(bkpinfo->zip_exe, "gzip");
491        strcpy(bkpinfo->zip_suffix, "gz");
492    } else if (bkpinfo->compression_level != 0) {
493        strcpy(bkpinfo->zip_exe, "bzip2");
494        strcpy(bkpinfo->zip_suffix, "bz2");
495    } else {
496        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
497    }
498
499// DVD
500
501    if (bkpinfo->backup_media_type == dvd) {
502        extra_cdrom_params[0] = '\0';
503        mondo_mkisofs_sz[0] = '\0';
504        if (find_home_of_exe("growisofs")) {
505            strcpy(cdr_exe, "growisofs");
506        }                       // unlikely to be used
507        else {
508            fatal_error("Please install growisofs.");
509        }
510        if (bkpinfo->nonbootable_backup) {
511            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
512        } else if
513#ifdef __FreeBSD__
514            (TRUE)
515#else
516            (bkpinfo->make_cd_use_lilo)
517#endif
518#ifdef __IA64__
519    {
520        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
521    }
522#else
523    {
524        strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
525    }
526#endif
527        else
528        {
529            strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
530        }
531        if (bkpinfo->manual_cd_tray) {
532            fatal_error("Manual CD tray + DVD not supported yet.");
533            // -m isn't supported by growisofs, BTW...
534        } else {
535            sprintf(bkpinfo->call_make_iso,
536                    "%s %s -Z %s . 2>> _ERR_",
537                    mondo_mkisofs_sz,
538                    extra_cdrom_params, bkpinfo->media_device);
539        }
540        if (getenv ("SUDO_COMMAND")) {
541            sprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
542            if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
543                popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
544                fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
545            }       
546        }
547        log_msg(2, "call_make_iso (DVD res) is ... %s",
548                bkpinfo->call_make_iso);
549    }                           // end of DVD code
550
551// CD-R or CD-RW
552    if (bkpinfo->backup_media_type == cdrw
553        || bkpinfo->backup_media_type == cdr) {
554        extra_cdrom_params[0] = '\0';
555        if (!bkpinfo->manual_cd_tray) {
556            strcat(extra_cdrom_params, "-waiti ");
557        }
558        if (bkpinfo->backup_media_type == cdrw) {
559            strcat(extra_cdrom_params, "blank=fast ");
560        }
561        if (find_home_of_exe("cdrecord")) {
562            strcpy(cdr_exe, "cdrecord");
563        } else if (find_home_of_exe("dvdrecord")) {
564            strcpy(cdr_exe, "dvdrecord");
565        } else {
566            fatal_error("Please install either cdrecord or dvdrecord.");
567        }
568        if (bkpinfo->nonbootable_backup) {
569            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
570        } else if
571#ifdef __FreeBSD__
572            (TRUE)
573#else
574            (bkpinfo->make_cd_use_lilo)
575#endif
576#ifdef __IA64__
577    {
578        strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
579    }
580#else
581    {
582        strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
583    }
584#endif
585        else
586        {
587            strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
588        }
589        if (bkpinfo->manual_cd_tray) {
590            if (bkpinfo->call_before_iso[0] == '\0') {
591            sprintf(bkpinfo->call_before_iso,
592                        "%s -o %s/temporary.iso . 2>> _ERR_",
593                        mondo_mkisofs_sz, bkpinfo->tmpdir);
594                } else {
595                strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
596                sprintf (bkpinfo->call_before_iso,
597                                    "( %s -o %s/temporary.iso . 2>> _ERR_ ; %s )",
598                        mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
599            }
600            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
601            sprintf(bkpinfo->call_make_iso,
602                    "%s %s -v %s fs=4m dev=%s speed=%d %s/temporary.iso",
603                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
604                    extra_cdrom_params, bkpinfo->media_device,
605                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
606        } else {
607            sprintf(bkpinfo->call_make_iso,
608                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
609                    mondo_mkisofs_sz, cdr_exe,
610                    (bkpinfo->please_dont_eject) ? " " : "-eject",
611                    extra_cdrom_params, bkpinfo->media_device,
612                    bkpinfo->cdrw_speed);
613        }
614    }                           // end of CD code
615
616    /*
617       if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
618       {
619       sprintf (tmp,
620       "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
621       bkpinfo->media_device, bkpinfo->internal_tape_block_size);
622       if (system(tmp))
623       {
624       retval++;
625       fprintf (stderr,
626       "Cannot write to tape device. Is the tape set read-only?\n");
627       }
628       } // end of tape code
629     */
630
631
632    if (bkpinfo->backup_media_type == iso) {
633
634/* Patch by Conor Daly <conor.daly@met.ie>
635 * 23-june-2004
636 * Break up isodir into iso_mnt and iso_path
637 * These will be used along with iso-dev at restore time
638 * to locate the ISOs where ever they're mounted
639 */
640
641        log_it("isodir = %s", bkpinfo->isodir);
642        sprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1",
643                bkpinfo->isodir);
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_dev, "%s",
648                call_program_and_get_last_line_of_output(command));
649        sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
650        write_one_liner_data_file(tmp,
651                                  call_program_and_get_last_line_of_output
652                                  (command));
653
654        sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
655                iso_dev);
656        log_it("command = %s", command);
657        log_it("res of it = %s",
658               call_program_and_get_last_line_of_output(command));
659        sprintf(iso_mnt, "%s",
660                call_program_and_get_last_line_of_output(command));
661        sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
662        write_one_liner_data_file(tmp,
663                                  call_program_and_get_last_line_of_output
664                                  (command));
665        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
666        sprintf(iso_tmp, "%s", bkpinfo->isodir);
667        if (strlen(iso_tmp) < strlen(iso_mnt)) {
668            iso_path[0] = '\0';
669        } else {
670            sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
671        }
672        sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
673        write_one_liner_data_file(tmp, iso_path);
674        log_it("isodir: %s", iso_path);
675        sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
676        write_one_liner_data_file(tmp, bkpinfo->prefix);
677        log_it("iso-prefix: %s",  bkpinfo->prefix);
678
679/* End patch */
680    }                           // end of iso code
681
682    if (bkpinfo->backup_media_type == nfs) {
683        strcpy(hostname, bkpinfo->nfs_mount);
684        colon = strchr(hostname, ':');
685        if (!colon) {
686            log_it("nfs mount doesn't have a colon in it");
687            retval++;
688        } else {
689            struct hostent *hent;
690
691            *colon = '\0';
692            hent = gethostbyname(hostname);
693            if (!hent) {
694                log_it("Can't resolve NFS mount (%s): %s", hostname,
695                       hstrerror(h_errno));
696                retval++;
697            } else {
698                strcpy(ip_address, inet_ntoa
699                       ((struct in_addr)
700                        *((struct in_addr *) hent->h_addr)));
701                strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
702                strcpy(bkpinfo->nfs_mount, ip_address);
703            }
704        }
705        store_nfs_config(bkpinfo);
706    }
707
708    log_it("Finished processing incoming params");
709    if (retval) {
710        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
711    }
712    sprintf(tmp, "%s", MONDO_TMPISOS);  /* added #define 22 apr 2002 */
713    if (does_file_exist(tmp)) {
714        unlink(tmp);
715    }
716    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
717        log_it("tmpdir or scratchdir are blank/missing");
718        retval++;
719    }
720    if (bkpinfo->include_paths[0] == '\0') {
721        //      fatal_error ("Why no backup path?");
722        strcpy(bkpinfo->include_paths, "/");
723    }
724    chmod(bkpinfo->scratchdir, 0700);
725    chmod(bkpinfo->tmpdir, 0700);
726    g_backup_media_type = bkpinfo->backup_media_type;
727    mr_free(mtpt);
728    mr_free(extra_cdrom_params);
729    mr_free(mondo_mkisofs_sz);
730    mr_free(command);
731    mr_free(hostname);
732    mr_free(ip_address);
733    mr_free(cdr_exe);
734    mr_free(tmp);
735    mr_free(iso_dev);
736    mr_free(iso_mnt);
737    mr_free(iso_tmp);
738    mr_free(iso_path);
739    return (retval);
740}
741
742
743
744/**
745 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
746 * Seeds the random-number generator, loads important modules, checks the sanity
747 * of the user's Linux distribution, and deletes logfile.
748 * @param bkpinfo The backup information structure. Will be initialized.
749 * @return number of errors (0 for success)
750 */
751int pre_param_configuration(struct s_bkpinfo *bkpinfo)
752{
753    int res = 0;
754
755    make_hole_for_dir(MNT_CDROM);
756    assert(bkpinfo != NULL);
757    srandom((unsigned long) (time(NULL)));
758    insmod_crucial_modules();
759    reset_bkpinfo(bkpinfo);     // also sets defaults ('/'=backup path, 3=compression level)
760    if (bkpinfo->disaster_recovery) {
761        if (!does_nonMS_partition_exist()) {
762            fatal_error
763                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
764        }
765    }
766
767    unlink(MONDO_TRACEFILE);
768    run_program_and_log_output("rm -Rf /tmp/changed.files*", FALSE);
769    if (find_and_store_mondoarchives_home(g_mondo_home)) {
770        fprintf(stderr,
771                "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");
772        res++;
773        return (res);
774    }
775    res += some_basic_system_sanity_checks();
776    if (res) {
777        log_it("Your distribution did not pass Mondo's sanity test.");
778    }
779    g_current_media_number = 1;
780    bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
781    return (res);
782}
783
784
785
786
787/**
788 * Reset all fields of the backup information structure to a sensible default.
789 * @param bkpinfo The @c bkpinfo to reset.
790 */
791void reset_bkpinfo(struct s_bkpinfo *bkpinfo)
792{
793    int i;
794
795    log_msg(1, "Hi");
796    assert(bkpinfo != NULL);
797    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
798    bkpinfo->manual_cd_tray = FALSE;
799    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
800    bkpinfo->media_device[0] = '\0';
801    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
802        bkpinfo->media_size[i] = -1;
803    }
804    bkpinfo->boot_loader = '\0';
805    bkpinfo->boot_device[0] = '\0';
806    bkpinfo->zip_exe[0] = '\0';
807    bkpinfo->zip_suffix[0] = '\0';
808    bkpinfo->restore_path[0] = '\0';
809    bkpinfo->use_lzo = FALSE;
810    bkpinfo->use_gzip = FALSE;
811    bkpinfo->do_not_compress_these[0] = '\0';
812    bkpinfo->verify_data = FALSE;
813    bkpinfo->backup_data = FALSE;
814    bkpinfo->restore_data = FALSE;
815    bkpinfo->disaster_recovery =
816        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
817    if (bkpinfo->disaster_recovery) {
818        strcpy(bkpinfo->isodir, "/");
819    } else {
820        strcpy(bkpinfo->isodir, "/root/images/mondo");
821    }
822    strcpy(bkpinfo->prefix, STD_PREFIX);
823
824    bkpinfo->scratchdir[0] = '\0';
825    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
826    sprintf(bkpinfo->tmpdir, "/tmp/tmpfs/mondo.tmp.%d", (int) (random() % 32768));  // for mondorestore
827    bkpinfo->optimal_set_size = 0;
828    bkpinfo->backup_media_type = none;
829    strcpy(bkpinfo->include_paths, "/");
830    bkpinfo->exclude_paths[0] = '\0';
831    bkpinfo->call_before_iso[0] = '\0';
832    bkpinfo->call_make_iso[0] = '\0';
833    bkpinfo->call_burn_iso[0] = '\0';
834    bkpinfo->call_after_iso[0] = '\0';
835    bkpinfo->image_devs[0] = '\0';
836    bkpinfo->postnuke_tarball[0] = '\0';
837    bkpinfo->kernel_path[0] = '\0';
838    bkpinfo->nfs_mount[0] = '\0';
839    bkpinfo->nfs_remote_dir[0] = '\0';
840    bkpinfo->wipe_media_first = FALSE;
841    bkpinfo->differential = FALSE;
842    bkpinfo->cdrw_speed = 0;
843// patch by Herman Kuster 
844    bkpinfo->differential = 0;
845// patch end
846    bkpinfo->compression_level = 3;
847}
848
849
850
851
852/**
853 * Get the remaining free space (in MB) on @p partition.
854 * @param partition The partition to check free space on (either a device or a mountpoint).
855 * @return The free space on @p partition, in MB.
856 */
857long free_space_on_given_partition(char *partition)
858{
859    char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
860    long res;
861
862    assert_string_is_neither_NULL_nor_zerolength(partition);
863
864    sprintf(command, "df -m -P %s &> /dev/null", partition);
865    if (system(command)) {
866        return (-1);
867    }                           // partition does not exist
868    sprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
869            partition);
870    strcpy(out_sz, call_program_and_get_last_line_of_output(command));
871    if (strlen(out_sz) == 0) {
872        return (-1);
873    }                           // error within df, probably
874    res = atol(out_sz);
875    return (res);
876}
877
878
879
880/**
881 * Check the user's system for sanity. Checks performed:
882 * - make sure user has enough RAM (32mb required, 64mb recommended)
883 * - make sure user has enough free space in @c /
884 * - check kernel for ramdisk support
885 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
886 * - make sure CD-ROM is unmounted
887 * - make sure /etc/modules.conf exists
888 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
889 *
890 * @return number of problems with the user's setup (0 for success)
891 */
892int some_basic_system_sanity_checks()
893{
894
895    /*@ buffers ************ */
896    char tmp[MAX_STR_LEN];
897    //  char command[MAX_STR_LEN];
898
899    /*@ int's *************** */
900    int retval = 0;
901    long Lres;
902
903
904    mvaddstr_and_log_it(g_currentY, 0,
905                        "Checking sanity of your Linux distribution");
906#ifndef __FreeBSD__
907    if (system("which mkfs.vfat &> /dev/null")
908        && !system("which mkfs.msdos &> /dev/null")) {
909        log_it
910            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
911        run_program_and_log_output
912            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
913    }
914    strcpy(tmp,
915           call_program_and_get_last_line_of_output
916           ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
917    if (atol(tmp) < 35000) {
918        retval++;
919        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
920    }
921    if (atol(tmp) < 66000) {
922        log_to_screen
923            ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
924    }
925#endif
926
927    Lres = free_space_on_given_partition("/var/cache");
928    log_it("Free space on given partition = %ld MB", Lres);
929
930    if (Lres < 50) {
931              fatal_error("Your /var/cache partition has <50MB free. Please adjust your partition table to something saner."); 
932    }
933
934    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
935        retval++;
936        log_to_screen
937            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
938        fatal_error
939            ("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. :)");
940    }
941#ifndef __FreeBSD__
942    if (run_program_and_log_output
943        ("grep ramdisk /proc/devices", FALSE)) {
944        if (!ask_me_yes_or_no
945            ("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?"))
946        {
947            //          retval++;
948            log_to_screen
949                ("It looks as if your kernel lacks ramdisk and initrd support.");
950            log_to_screen
951                ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
952        }
953    }
954#endif
955    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
956    retval += whine_if_not_found("mkisofs");
957    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
958        retval += whine_if_not_found("cdrecord");
959    }
960    retval += whine_if_not_found("bzip2");
961    retval += whine_if_not_found("gzip");
962    retval += whine_if_not_found("awk");
963    retval += whine_if_not_found("md5sum");
964    retval += whine_if_not_found("strings");
965    retval += whine_if_not_found("mindi");
966    retval += whine_if_not_found("buffer");
967
968    // abort if Windows partition but no ms-sys and parted
969    if (!run_program_and_log_output
970        ("mount | grep -w vfat | grep -vE \"/dev/fd|nexdisk\"", 0)
971        ||
972        !run_program_and_log_output
973        ("mount | grep -w dos | grep -vE \"/dev/fd|nexdisk\"", 0)) {
974        log_to_screen("I think you have a Windows 9x partition.");
975        retval += whine_if_not_found("parted");
976#ifndef __IA64__
977        /* IA64 always has one vfat partition for EFI even without Windows */
978        // retval +=
979        if (!find_home_of_exe("ms-sys")) {
980            log_to_screen("Please install ms-sys just in case.");
981        }
982#endif
983    }
984
985    if (!find_home_of_exe("cmp")) {
986        if (!find_home_of_exe("true")) {
987            whine_if_not_found("cmp");
988        } else {
989            log_to_screen
990                ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
991            if (run_program_and_log_output
992                ("cp -f `which true` /usr/bin/cmp", 0)) {
993                fatal_error("Failed to create dummy 'cmp' file.");
994            }
995        }
996    }
997    run_program_and_log_output
998        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
999    strcpy(tmp,
1000           call_program_and_get_last_line_of_output
1001           ("mount | grep -E \"cdr(om|w)\""));
1002    if (strcmp("", tmp)) {
1003        if (strstr(tmp, "autofs")) {
1004            log_to_screen
1005                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1006            log_to_screen
1007                ("if a CD actually is inserted. If a CD is inserted, please");
1008            log_to_screen("eject it. Thank you.");
1009            log_it
1010                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1011        } else
1012            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1013            retval++;
1014            fatal_error
1015                ("Your CD-ROM drive is mounted. Please unmount it.");
1016        }
1017    }
1018#ifndef __FreeBSD__
1019    if (!does_file_exist("/etc/modules.conf")) {
1020        if (does_file_exist("/etc/conf.modules")) {
1021            log_it("Linking /etc/modules.conf to /etc/conf.modules");
1022            run_program_and_log_output
1023                ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
1024        } else if (does_file_exist("/etc/modprobe.d")) {
1025            log_it
1026                ("Directory /etc/modprobe.d found. mindi will use its contents.");
1027        } else if (does_file_exist("/etc/modprobe.conf")) {
1028            log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
1029            run_program_and_log_output
1030                ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
1031        } else {
1032            retval++;
1033            log_to_screen
1034                ("Please find out what happened to /etc/modules.conf");
1035        }
1036    }
1037#endif
1038
1039    run_program_and_log_output("cat /etc/fstab", 5);
1040#ifdef __FreeBSD__
1041    run_program_and_log_output("vinum printconfig", 5);
1042#else
1043    run_program_and_log_output("cat /etc/raidtab", 5);
1044#endif
1045
1046    if (run_program_and_log_output("mindi -V", 1)) {
1047        log_to_screen("Could not ascertain mindi's version number.");
1048        log_to_screen
1049            ("You have not installed Mondo and/or Mindi properly.");
1050        log_to_screen("Please uninstall and reinstall them both.");
1051        fatal_error("Please reinstall Mondo and Mindi.");
1052    }
1053    if (run_program_and_log_output
1054        ("mindi --makemountlist /tmp/mountlist.txt.test", 5)) {
1055        log_to_screen
1056            ("Mindi --makemountlist /tmp/mountlist.txt.test failed for some reason.");
1057        log_to_screen
1058            ("Please run that command by hand and examine /var/log/mindi.log");
1059        log_to_screen
1060            ("for more information. Perhaps your /etc/fstab file is insane.");
1061        log_to_screen
1062            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1063        retval++;
1064    }
1065
1066    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1067        && !does_file_exist("/etc/raidtab")) {
1068        log_to_screen
1069            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1070        create_raidtab_from_mdstat("/etc/raidtab");
1071    }
1072
1073    if (retval) {
1074        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1075    } else {
1076        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1077    }
1078    return (retval);
1079}
1080
1081/**
1082 * Retrieve the line containing @p label from the config file.
1083 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1084 * @param label What to read from the file.
1085 * @param value Where to put it.
1086 * @return 0 for success, 1 for failure.
1087 */
1088int read_cfg_var(char *config_file, char *label, char *value)
1089{
1090    /*@ buffer ****************************************************** */
1091    char command[MAX_STR_LEN * 2];
1092    char tmp[MAX_STR_LEN];
1093
1094    /*@ end vars *************************************************** */
1095
1096    assert_string_is_neither_NULL_nor_zerolength(config_file);
1097    assert_string_is_neither_NULL_nor_zerolength(label);
1098    if (!does_file_exist(config_file)) {
1099        sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1100                config_file);
1101        log_to_screen(tmp);
1102        value[0] = '\0';
1103        return (1);
1104    } else if (strstr(value, "/dev/") && strstr(value, "t0")
1105               && !strcmp(label, "media-dev")) {
1106        log_msg(2, "FYI, I shan't read new value for %s - already got %s",
1107                label, value);
1108        return (0);
1109    } else {
1110        sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1111                label, config_file);
1112        strcpy(value, call_program_and_get_last_line_of_output(command));
1113        if (strlen(value) == 0) {
1114            return (1);
1115        } else {
1116            return (0);
1117        }
1118    }
1119}
1120
1121
1122
1123/**
1124 * Remount @c supermount if it was unmounted earlier.
1125 */
1126void remount_supermounts_if_necessary()
1127{
1128    if (g_remount_cdrom_at_end) {
1129        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1130    }
1131    if (g_remount_floppy_at_end) {
1132        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1133    }
1134}
1135
1136/**
1137 * Unmount @c supermount if it's mounted.
1138 */
1139void unmount_supermounts_if_necessary()
1140{
1141    if (run_program_and_log_output
1142        ("mount | grep cdrom | grep super", FALSE) == 0) {
1143        g_remount_cdrom_at_end = TRUE;
1144        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1145    }
1146    if (run_program_and_log_output
1147        ("mount | grep floppy | grep super", FALSE) == 0) {
1148        g_remount_floppy_at_end = TRUE;
1149        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1150    }
1151}
1152
1153/**
1154 * Whether we had to stop autofs (if so, restart it at end).
1155 */
1156bool g_autofs_stopped = FALSE;
1157
1158/**
1159 * Path to the autofs initscript ("" if none exists).
1160 */
1161char g_autofs_exe[MAX_STR_LEN];
1162
1163/**
1164 * Autofs initscript in Xandros Linux distribution.
1165 */
1166#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1167
1168/**
1169 * Autofs initscript in most Linux distributions.
1170 */
1171#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1172
1173/**
1174 * If autofs is mounted, stop it (restart at end).
1175 */
1176void stop_autofs_if_necessary()
1177{
1178    char tmp[MAX_STR_LEN];
1179
1180    g_autofs_exe[0] = '\0';
1181    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1182        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1183    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1184        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1185    }
1186
1187    if (!g_autofs_exe[0]) {
1188        log_msg(3, "No autofs detected.");
1189    } else {
1190        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1191// FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1192        sprintf(tmp, "%s stop", g_autofs_exe);
1193        if (run_program_and_log_output(tmp, 2)) {
1194            log_it("Failed to stop autofs - I assume it wasn't running");
1195        } else {
1196            g_autofs_stopped = TRUE;
1197            log_it("Stopped autofs OK");
1198        }
1199    }
1200}
1201
1202/**
1203 * If autofs was stopped earlier, restart it.
1204 */
1205void restart_autofs_if_necessary()
1206{
1207    char tmp[MAX_STR_LEN];
1208
1209    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1210        log_msg(3, "No autofs detected.");
1211        return;
1212    }
1213    sprintf(tmp, "%s start", g_autofs_exe);
1214    if (run_program_and_log_output(tmp, 2)) {
1215        log_it("Failed to start autofs");
1216    } else {
1217        g_autofs_stopped = FALSE;
1218        log_it("Started autofs OK");
1219    }
1220}
1221
1222
1223/**
1224 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1225 */
1226void mount_boot_if_necessary()
1227{
1228    char tmp[MAX_STR_LEN];
1229    char command[MAX_STR_LEN];
1230
1231    log_msg(1, "Started sub");
1232    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1233    g_boot_mountpt[0] = '\0';
1234    log_msg(4, "Done. Great. Seeting command to something");
1235    strcpy(command,
1236           "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[   ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1237    log_msg(4, "Cool. Command = '%s'", command);
1238    strcpy(tmp, call_program_and_get_last_line_of_output(command));
1239    log_msg(4, "tmp = '%s'", tmp);
1240    if (tmp[0]) {
1241        log_it("/boot is at %s according to /etc/fstab", tmp);
1242        if (strstr(tmp, "LABEL=")) {
1243            if (!run_program_and_log_output("mount /boot", 5)) {
1244                strcpy(g_boot_mountpt, "/boot");
1245                log_msg(1, "Mounted /boot");
1246            } else {
1247                log_it("...ignored cos it's a label :-)");
1248            }
1249        } else {
1250            sprintf(command, "mount | grep -E '^%s'", tmp);
1251            log_msg(3, "command = %s", command);
1252            if (run_program_and_log_output(command, 5)) {
1253                strcpy(g_boot_mountpt, tmp);
1254                sprintf(tmp,
1255                        "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1256                        g_boot_mountpt);
1257                log_it(tmp);
1258                sprintf(tmp, "mount %s", g_boot_mountpt);
1259                if (run_program_and_log_output(tmp, 5)) {
1260                    g_boot_mountpt[0] = '\0';
1261                    log_msg(1, "Plan B");
1262                    if (!run_program_and_log_output("mount /boot", 5)) {
1263                        strcpy(g_boot_mountpt, "/boot");
1264                        log_msg(1, "Plan B worked");
1265                    } else {
1266                        log_msg(1,
1267                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1268                    }
1269                }
1270            }
1271        }
1272    }
1273    log_msg(1, "Ended sub");
1274}
1275
1276
1277/**
1278 * If we mounted /boot earlier, unmount it.
1279 */
1280void unmount_boot_if_necessary()
1281{
1282    char tmp[MAX_STR_LEN];
1283
1284    log_msg(3, "starting");
1285    if (g_boot_mountpt[0]) {
1286        sprintf(tmp, "umount %s", g_boot_mountpt);
1287        if (run_program_and_log_output(tmp, 5)) {
1288            log_it("WARNING - unable to unmount /boot");
1289        }
1290    }
1291    log_msg(3, "leaving");
1292}
1293
1294
1295
1296/**
1297 * Write a line to a configuration file. Writes a line of the form,
1298 * @c label @c value.
1299 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1300 * @param label What to call this bit of data you're writing.
1301 * @param value The bit of data you're writing.
1302 * @return 0 for success, 1 for failure.
1303 */
1304int write_cfg_var(char *config_file, char *label, char *value)
1305{
1306    /*@ buffers ***************************************************** */
1307    char command[MAX_STR_LEN * 2];
1308    char tempfile[MAX_STR_LEN];
1309    char tmp[MAX_STR_LEN];
1310
1311
1312    /*@ end vars *************************************************** */
1313    assert_string_is_neither_NULL_nor_zerolength(config_file);
1314    assert_string_is_neither_NULL_nor_zerolength(label);
1315    assert(value != NULL);
1316    if (!does_file_exist(config_file)) {
1317        sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1318                config_file);
1319        log_to_screen(tmp);
1320        return (1);
1321    }
1322    strcpy(tempfile,
1323           call_program_and_get_last_line_of_output
1324           ("mktemp -q /tmp/mojo-jojo.blah.XXXXXX"));
1325    if (does_file_exist(config_file)) {
1326        sprintf(command, "grep -vE '^%s .*$' %s > %s",
1327                label, config_file, tempfile);
1328        paranoid_system(command);
1329    }
1330    sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1331    paranoid_system(command);
1332    sprintf(command, "mv -f %s %s", tempfile, config_file);
1333    paranoid_system(command);
1334    unlink(tempfile);
1335    return (0);
1336}
1337
1338
1339/**
1340 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1341 * information to the logfile.
1342 */
1343void standard_log_debug_msg(int debug_level, const char *szFile,
1344                            const char *szFunction, int nLine,
1345                            const char *fmt, ...)
1346{
1347    va_list args;
1348    int i;
1349    static int depth = 0;
1350    char *tmp;
1351    FILE *fout;
1352
1353    if (depth > 5) {
1354        depth--;
1355        return;
1356    }
1357    depth++;
1358
1359    malloc_string(tmp);
1360
1361    if (debug_level <= g_loglevel) {
1362        va_start(args, fmt);
1363        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1364            return;
1365        }                       // fatal_error("Failed to openout to logfile - sheesh..."); }
1366
1367        // add tabs to distinguish log levels
1368        if (debug_level > 0) {
1369            for (i = 1; i < debug_level; i++)
1370                fprintf(fout, "\t");
1371            if (getpid() == g_main_pid)
1372                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1373                        nLine);
1374            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1375                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1376                        nLine);
1377            else
1378                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1379                        szFunction, nLine);
1380        }
1381        vfprintf(fout, fmt, args);
1382
1383        // do not slow down the progran if standard debug level
1384        // must be enabled: if no flush, the log won't be up-to-date if there
1385        // is a segfault
1386        //if (g_dwDebugLevel != 1)
1387
1388        va_end(args);
1389        fprintf(fout, "\n");
1390        paranoid_fclose(fout);
1391    }
1392    depth--;
1393    mr_free(tmp);
1394}
1395
1396/**
1397 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1398 */
1399void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1400                       ...) = standard_log_debug_msg;
1401
1402
1403/**
1404 * If @p y, malloc @p x, else free @p x.
1405 * @bug This function seems orphaned. Please remove.
1406 */
1407#define do_alloc_or_free_depending(x,y) { if(y) {x=mr_malloc(MAX_STR_LEN);} else {mr_free(x);} }
1408
1409/**
1410 * Allocate or free important globals, depending on @p mal.
1411 * @param mal If TRUE, malloc; if FALSE, free.
1412 */
1413void do_libmondo_global_strings_thing(int mal)
1414{
1415    if (mal) {
1416        iamhere("Malloc'ing globals");
1417        malloc_string(g_boot_mountpt);
1418        malloc_string(g_mondo_home);
1419        malloc_string(g_tmpfs_mountpt);
1420        malloc_string(g_erase_tmpdir_and_scratchdir);
1421        malloc_string(g_serial_string);
1422        malloc_string(g_magicdev_command);
1423    } else {
1424        iamhere("Freeing globals");
1425        mr_free(g_boot_mountpt);
1426        mr_free(g_mondo_home);
1427        mr_free(g_tmpfs_mountpt);
1428        mr_free(g_erase_tmpdir_and_scratchdir);
1429        mr_free(g_serial_string);
1430        mr_free(g_magicdev_command);
1431    }
1432
1433    /*
1434       char**list_of_arrays[] = {
1435       &g_boot_mountpt,
1436       &g_mondo_home,
1437       &g_tmpfs_mountpt,
1438       &g_erase_tmpdir_and_scratchdir,
1439       &g_serial_string,
1440       &g_magicdev_command,
1441       NULL};
1442
1443       char**ppcurr;
1444       int i;
1445
1446       for(i=0;list_of_arrays[i];i++)
1447       {
1448       log_msg(5, "Allocating %d", i);
1449       ppcurr = list_of_arrays[i];
1450       if (mal)
1451       { *ppcurr = malloc(MAX_STR_LEN); }
1452       else
1453       {
1454       if (*ppcurr)
1455       {
1456       free(*ppcurr);
1457       }
1458       }
1459       }
1460       log_msg(5, "Returning");
1461     */
1462}
1463
1464/**
1465 * Allocate important globals.
1466 * @see do_libmondo_global_strings_thing
1467 */
1468void malloc_libmondo_global_strings(void)
1469{
1470    do_libmondo_global_strings_thing(1);
1471}
1472
1473/**
1474 * Free important globals.
1475 * @see do_libmondo_global_strings_thing
1476 */
1477void free_libmondo_global_strings(void)
1478{
1479    do_libmondo_global_strings_thing(0);
1480}
1481
1482
1483
1484/**
1485 * Stop @c magicdev if it's running.
1486 * The command used to start it is saved in @p g_magicdev_command.
1487 */
1488void stop_magicdev_if_necessary()
1489{
1490    strcpy(g_magicdev_command,
1491           call_program_and_get_last_line_of_output
1492           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1493    if (g_magicdev_command[0]) {
1494        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1495        paranoid_system("killall magicdev");
1496    }
1497}
1498
1499
1500/**
1501 * Restart magicdev if it was stopped.
1502 */
1503void restart_magicdev_if_necessary()
1504{
1505    char *tmp;
1506
1507    malloc_string(tmp);
1508    if (g_magicdev_command && g_magicdev_command[0]) {
1509        sprintf(tmp, "%s &", g_magicdev_command);
1510        paranoid_system(tmp);
1511    }
1512    mr_free(tmp);
1513}
1514
1515/* @} - end of utilityGroup */
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