source: MondoRescue/branches/2.2.10/mondo/src/common/libmondo-tools.c @ 2331

Last change on this file since 2331 was 2331, checked in by Bruno Cornec, 11 years ago

r3342@localhost: bruno | 2009-08-14 00:46:51 +0200

  • Another round of strcpy suppressions
  • find_home_of_exe() now allocates memory which has to be freed by the caller
  • Supress useless sz_last_suffix()
  • mr_getline now has the same interface as the other mr_mem functions
  • valgrind and compiler warnings fixes
  • Property svn:keywords set to Id
File size: 39.9 KB
Line 
1/*
2   $Id: libmondo-tools.c 2331 2009-08-18 13:25:29Z 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 2331 2009-08-18 13:25:29Z bruno $";
30
31extern int g_tape_buffer_size_MB;
32extern bool g_text_mode;
33extern int g_currentY;
34extern int g_current_media_number;
35extern char *MONDO_LOGFILE;
36extern char *g_serial_string;
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 location where tmpfs is mounted, or "" if it's not mounted.
62char *g_tmpfs_mountpt = NULL;
63 */
64char *g_magicdev_command = NULL;
65
66/**
67 * The default maximum level to log messages at or below.
68 */
69int g_loglevel = DEFAULT_DEBUG_LEVEL;
70
71/* @} - end of globalGroup */
72
73
74extern pid_t g_buffer_pid;
75extern pid_t g_main_pid;
76
77extern t_bkptype g_backup_media_type;
78
79extern bool am_I_in_disaster_recovery_mode(void);
80
81/*-----------------------------------------------------------*/
82
83
84/**
85 * @addtogroup utilityGroup
86 * @{
87 */
88/**
89 * Assertion handler. Prints a friendly message to the user,
90 * offering to ignore all, dump core, break to debugger,
91 * exit, or ignore. Intended to be used with an assert() macro.
92 *
93 * @param file The file in which the assertion triggered.
94 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
95 * @param line The line number of the assert() statement.
96 * @param exp The expression that failed (as a string).
97 */
98void _mondo_assert_fail(const char *file,
99                        const char *function, int line, const char *exp)
100{
101    static int ignoring_assertions = 0;
102    bool is_valid = TRUE;
103
104    log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
105           function);
106    if (ignoring_assertions) {
107        log_it("Well, the user doesn't care...");
108        return;
109    }
110#ifndef _XWIN
111    if (!g_text_mode)
112        newtSuspend();
113#endif
114    printf("ASSERTION FAILED: `%s'\n", exp);
115    printf("\tat %s:%d in %s\n\n", file, line, function);
116    printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
117    do {
118        is_valid = TRUE;
119        switch (toupper(getchar())) {
120        case 'A':               // ignore (A)ll
121            ignoring_assertions = 1;
122            break;
123        case 'B':               // a(B)ort
124            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
125            raise(SIGABRT);
126            break;              /* "can't get here" */
127        case 'D':               // (D)ebug, aka asm("int 3")
128#ifdef __IA32__
129            __asm__ __volatile__("int $3"); // break to debugger
130#endif
131            break;
132        case 'E':               // (E)xit
133            fatal_error("Failed assertion -- see above for details");
134            break;              /* "can't get here" */
135        case 'I':               // (I)gnore
136            break;
137            /* These next two work as follows:
138               the `default' catches the user's invalid choice and says so;
139               the '\n' catches the newline on the end and prints the prompt again.
140             */
141        case '\n':
142            printf
143                ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
144            break;
145        default:
146            is_valid = FALSE;
147            printf("Invalid choice.\n");
148            break;
149        }
150    } while (!is_valid);
151
152    if (ignoring_assertions) {
153        log_it("Ignoring ALL assertions from now on.");
154    } else {
155        log_it("Ignoring assertion: %s", exp);
156    }
157
158    getchar();                  // skip \n
159
160#ifndef _XWIN
161    if (!g_text_mode)
162        newtResume();
163#endif
164}
165
166/**
167 * Clean's up users' KDE desktops.
168 * @bug Details about this function are unknown.
169 */
170void clean_up_KDE_desktop_if_necessary(void)
171{
172    char *tmp;
173
174    malloc_string(tmp);
175    strcpy(tmp,
176           "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
177file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
178awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
179else { print $0;};}' $file.old  > $file ; fi ; done");
180    run_program_and_log_output(tmp, 5);
181    paranoid_free(tmp);
182}
183
184
185/**
186 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
187 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
188 *
189 * @param home_sz String to store the home directory ("" if it could not be found).
190 * @return 0 for success, nonzero for failure.
191 */
192int find_and_store_mondoarchives_home(char *home_sz)
193{
194    assert(home_sz != NULL);
195    strcpy(home_sz, MONDO_SHARE);
196    return (0);
197}
198
199
200char *get_architecture(void) {
201#ifdef __IA32__
202#   ifdef __X86_64__
203        return ("x86_64");
204#   else
205        return ("i386");
206#   endif
207#endif
208#ifdef __IA64__
209    return ("ia64");
210#endif
211    return ("unknown");
212}
213
214
215char *get_uname_m(void) {
216
217    struct utsname utsn;
218    char *tmp = NULL;
219
220    uname(&utsn);
221    mr_asprintf(tmp, "%s", utsn.machine);
222    return (tmp);
223}
224
225
226
227double get_kernel_version(void)
228{
229    char *p, tmp[200];
230    double d;
231#ifdef __FreeBSD__
232    // JOSH - FIXME :)
233    d = 5.2;                    // :-)
234#else
235    strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
236    p = strchr(tmp, '.');
237    if (p) {
238        p = strchr(++p, '.');
239        if (p) {
240            while (*p) {
241                *p = *(p + 1);
242                p++;
243            }
244        }
245    }
246//  log_msg(1, "tmp = '%s'", tmp);
247    d = atof(tmp);
248#endif
249    log_msg(1, "g_kernel_version = %f", d);
250    return (d);
251}
252
253
254
255
256
257/**
258 * Get the current time.
259 * @return number of seconds since the epoch.
260 */
261long get_time()
262{
263    return (long) time((void *) 0);
264}
265
266
267
268
269
270
271
272/**
273 * Initialize a RAID volume structure, setting fields to zero. The
274 * actual hard drive is unaffected.
275 *
276 * @param raidrec The RAID volume structure to initialize.
277 * @note This function is system dependent.
278 */
279#ifdef __FreeBSD__
280void initialize_raidrec(struct vinum_volume *raidrec)
281{
282    int i, j;
283    raidrec->volname[0] = '\0';
284    raidrec->plexes = 0;
285    for (i = 0; i < 9; ++i) {
286        raidrec->plex[i].raidlevel = -1;
287        raidrec->plex[i].stripesize = 0;
288        raidrec->plex[i].subdisks = 0;
289        for (j = 0; j < 9; ++j) {
290            strcpy(raidrec->plex[i].sd[j].which_device, "");
291        }
292    }
293}
294#else
295void initialize_raidrec(struct raid_device_record *raidrec)
296{
297    assert(raidrec != NULL);
298    raidrec->raid_device[0] = '\0';
299    raidrec->raid_level = -9;
300    raidrec->persistent_superblock = 1;
301    raidrec->chunk_size = 64;
302    raidrec->parity = -1;
303    raidrec->data_disks.entries = 0;
304    raidrec->spare_disks.entries = 0;
305    raidrec->parity_disks.entries = 0;
306    raidrec->failed_disks.entries = 0;
307    raidrec->additional_vars.entries = 0;
308}
309#endif
310
311
312
313
314/**
315 * Insert modules that Mondo requires.
316 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
317 * @c msdosfs and @c ext2fs for FreeBSD.
318 */
319void insmod_crucial_modules(void)
320{
321#ifdef __FreeBSD__
322    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
323    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
324#else
325    system("modprobe -a msdos vfat loop &> /dev/null");
326#endif
327}
328
329
330/**
331 * Log a trace message to the trace file.
332 * @bug This function seems orphaned. Please remove.
333 */
334void log_trace(char *o)
335{
336    /*@ pointers **************************************************** */
337    FILE *fout;
338
339    /*@ buffers ***************************************************** */
340    char output[MAX_STR_LEN];
341
342    /*@ int    ****************************************************** */
343    int i;
344
345    /*@ end vars *************************************************** */
346
347    if (o[0] == '\0') {
348        return;
349    }
350    strcpy(output, o);
351    i = (int) strlen(output);
352    if (i <= 0) {
353        return;
354    }
355    if (output[i - 1] < 32) {
356        output[i - 1] = '\0';
357    }
358    if (g_text_mode
359        /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
360        printf("%s\n", output);
361    }
362
363    fout = fopen(MONDO_TRACEFILE, "a");
364    if (fout) {
365        fprintf(fout, "%s\n", output);
366        paranoid_fclose(fout);
367    } else {
368        log_OS_error("Cannot write to tracefile");
369    }
370}
371
372
373
374
375
376/**
377 * Finish configuring the backup information structure. Call this function
378 * to set the parameters that depend on those that can be given on the command
379 * line.
380 *
381 * @param bkpinfo The backup information structure. Fields modified/used:
382 * - Used: @c bkpinfo->backup_data
383 * - Used: @c bkpinfo->backup_media_type
384 * - Used: @c bkpinfo->cdrw_speed
385 * - Used: @c bkpinfo->compression_level
386 * - Used: @c bkpinfo->include_paths
387 * - Used: @c bkpinfo->prefix
388 * - Used: @c bkpinfo->isodir
389 * - Used: @c bkpinfo->manual_cd_tray
390 * - Used: @c bkpinfo->make_cd_use_lilo
391 * - Used: @c bkpinfo->media_device
392 * - Used: @c bkpinfo->nfs_mount
393 * - Used: @c bkpinfo->nonbootable_backup
394 * - Used: @c bkpinfo->scratchdir
395 * - Used: @c bkpinfo->tmpdir
396 * - Used: @c bkpinfo->use_lzo
397 * - Modified: @c bkpinfo->call_before_iso
398 * - Modified: @c bkpinfo->call_make_iso
399 * - Modified: @c bkpinfo->optimal_set_size
400 * - Modified: @c bkpinfo->zip_exe
401 * - Modified: @c bkpinfo->zip_suffix
402 *
403 * @return number of errors, or 0 for success.
404 * @note Also creates directories that are specified in the @c bkpinfo structure but
405 * do not exist.
406 */
407int post_param_configuration()
408{
409    char *extra_cdrom_params = NULL;
410    char *mondo_mkisofs_sz = NULL;
411    char *command = NULL;
412    char *mtpt;
413    char *hostname;
414    char *ip_address = NULL;
415    int retval = 0;
416    char *colon;
417    char *cdr_exe;
418    char *tmp = NULL;
419    char *p = NULL;
420    char *call_before_iso_user = NULL;
421    char *iso_dev = NULL;
422    char *iso_mnt = NULL;
423    char *iso_tmp = NULL;
424    char *iso_path = NULL;
425
426    assert(bkpinfo != NULL);
427
428    if (!bkpinfo->tmpdir) {
429        fatal_error("Tmpdir set to NULL !");
430    }
431
432    malloc_string(mtpt);
433    malloc_string(hostname);
434    malloc_string(cdr_exe);
435    bkpinfo->optimal_set_size =
436        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
437        1024;
438
439    if (strlen(bkpinfo->tmpdir) < 2) {
440        log_it("tmpdir is blank/missing");
441        retval++;
442    }
443
444    log_msg(1, "Foo");
445    if (bkpinfo->backup_media_type == tape) {
446        log_msg(1, "Bar");
447        if (bkpinfo->media_device == NULL) {
448            return(1);
449        }
450        mr_asprintf(tmp, "mt -f %s status", bkpinfo->media_device);
451        log_msg(1, "tmp = '%s'", tmp);
452        if (run_program_and_log_output(tmp, 3)) {
453            mr_free(tmp);
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        mr_free(tmp);
458    }
459    if (bkpinfo->scratchdir) {
460        make_hole_for_dir(bkpinfo->scratchdir);
461        chmod(bkpinfo->scratchdir, 0700);
462    } else {
463        fatal_error("Scratchdir set to NULL !");
464    }
465    if (bkpinfo->backup_media_type == iso)
466        make_hole_for_dir(bkpinfo->isodir);
467
468    run_program_and_log_output("uname -a", 5);
469    run_program_and_log_output("cat /etc/*-release", 5);
470    run_program_and_log_output("cat /etc/*issue*", 5);
471#ifdef __FreeBSD__
472#else
473    run_program_and_log_output("cat /proc/cpuinfo", 5);
474    run_program_and_log_output
475        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
476         5);
477#endif
478
479    if (bkpinfo->use_lzo) {
480        mr_asprintf(bkpinfo->zip_exe, "lzop");
481        mr_asprintf(bkpinfo->zip_suffix, "lzo");
482    } else if (bkpinfo->use_gzip) {
483        mr_asprintf(bkpinfo->zip_exe, "gzip");
484        mr_asprintf(bkpinfo->zip_suffix, "gz");
485    } else if (bkpinfo->compression_level != 0) {
486        mr_asprintf(bkpinfo->zip_exe, "bzip2");
487        mr_asprintf(bkpinfo->zip_suffix, "bz2");
488    } else {
489        mr_asprintf(bkpinfo->zip_exe, "none");
490        mr_asprintf(bkpinfo->zip_suffix, "");
491    }
492
493// DVD
494
495    if (bkpinfo->backup_media_type == dvd) {
496        tmp = find_home_of_exe("growisofs");
497        if (tmp) {
498            strcpy(cdr_exe, "growisofs");
499        }                       // unlikely to be used
500        else {
501            mr_free(tmp);
502            fatal_error("Please install growisofs.");
503        }
504        mr_free(tmp);
505
506        if (bkpinfo->nonbootable_backup) {
507            mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
508        } else if
509#ifdef __FreeBSD__
510            (TRUE)
511#else
512            (bkpinfo->make_cd_use_lilo)
513#endif
514#ifdef __IA64__
515    {
516        mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
517    }
518#else
519    {
520        mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
521    }
522#endif
523        else
524        {
525            mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
526        }
527        if (bkpinfo->manual_cd_tray) {
528            paranoid_free(mondo_mkisofs_sz);
529            fatal_error("Manual CD tray + DVD not supported yet.");
530            // -m isn't supported by growisofs, BTW...
531        } else {
532            if (bkpinfo->media_device == NULL) {
533                return(1);
534            }
535            mr_free(bkpinfo->call_make_iso);
536            mr_asprintf(bkpinfo->call_make_iso, "%s %s -Z %s . 2>> _ERR_", mondo_mkisofs_sz, "", bkpinfo->media_device);
537            paranoid_free(mondo_mkisofs_sz);
538        }
539        if (getenv ("SUDO_COMMAND")) {
540            mr_asprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
541            if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
542                mr_free(command);
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            mr_free(command);
547        }
548        log_msg(2, "call_make_iso (DVD res) is ... %s", 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        if (!bkpinfo->manual_cd_tray) {
555            mr_asprintf(extra_cdrom_params, "-waiti ");
556        }
557        if (bkpinfo->backup_media_type == cdrw) {
558            mr_asprintf(extra_cdrom_params, "blank=fast ");
559        }
560        tmp = find_home_of_exe("cdrecord");
561        if (tmp) {
562            strcpy(cdr_exe, "cdrecord");
563        } else {
564            mr_free(tmp);
565            tmp = find_home_of_exe("dvdrecord");
566            if (tmp) {
567                strcpy(cdr_exe, "dvdrecord");
568            } else {
569                mr_free(tmp);
570                fatal_error("Please install either cdrecord or dvdrecord.");
571            }
572        }
573        mr_free(tmp);
574
575        if (bkpinfo->nonbootable_backup) {
576            mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
577        } else if
578#ifdef __FreeBSD__
579            (TRUE)
580#else
581            (bkpinfo->make_cd_use_lilo)
582#endif
583#ifdef __IA64__
584    {
585        mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
586    }
587#else
588    {
589        mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
590    }
591#endif
592        else
593        {
594            mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
595        }
596
597        mr_free(bkpinfo->call_make_iso);
598        if (bkpinfo->manual_cd_tray) {
599            if (bkpinfo->call_before_iso == NULL) {
600                mr_asprintf(bkpinfo->call_before_iso, "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_", mondo_mkisofs_sz, bkpinfo->tmpdir);
601            } else {
602                mr_asprintf(call_before_iso_user, "%s", bkpinfo->call_before_iso);
603                mr_free(bkpinfo->call_before_iso);
604                mr_asprintf(bkpinfo->call_before_iso, "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )", mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
605                mr_free(call_before_iso_user);
606            }
607            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
608            if (bkpinfo->media_device == NULL) {
609                return(1);
610            }
611            mr_asprintf(bkpinfo->call_make_iso, "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS, cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject", extra_cdrom_params, bkpinfo->media_device, bkpinfo->cdrw_speed, bkpinfo->tmpdir);
612        } else {
613            mr_asprintf(bkpinfo->call_make_iso, "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -", mondo_mkisofs_sz, cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject", extra_cdrom_params, bkpinfo->media_device, bkpinfo->cdrw_speed);
614        }
615        paranoid_free(mondo_mkisofs_sz);
616        paranoid_free(extra_cdrom_params);
617    }                           // end of CD code
618
619    if (bkpinfo->backup_media_type == iso) {
620
621/* Patch by Conor Daly <conor.daly@met.ie>
622 * 23-june-2004
623 * Break up isodir into iso_mnt and iso_path
624 * These will be used along with iso-dev at restore time
625 * to locate the ISOs where ever they're mounted
626 */
627
628        log_it("isodir = %s", bkpinfo->isodir);
629        mr_asprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
630        log_it("command = %s", command);
631        log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
632        mr_asprintf(iso_dev, "%s", call_program_and_get_last_line_of_output(command));
633        mr_asprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
634        write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
635        mr_free(tmp);
636        mr_free(command);
637
638        mr_asprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
639        mr_free(iso_dev);
640
641        log_it("command = %s", command);
642        log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
643        mr_asprintf(iso_mnt, "%s", call_program_and_get_last_line_of_output(command));
644        mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
645        write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
646        mr_free(tmp);
647        mr_free(command);
648
649        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
650        mr_asprintf(iso_tmp, "%s", bkpinfo->isodir);
651        if (strlen(iso_tmp) < strlen(iso_mnt)) {
652            mr_asprintf(iso_path, "%s", "");
653        } else {
654            mr_asprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
655        }
656        mr_free(iso_tmp);
657
658        mr_asprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
659        write_one_liner_data_file(tmp, iso_path);
660        mr_free(tmp);
661
662        log_it("isodir: %s", iso_path);
663        mr_free(iso_path);
664
665        mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
666        write_one_liner_data_file(tmp, bkpinfo->prefix);
667        mr_free(tmp);
668
669        log_it("iso-prefix: %s",  bkpinfo->prefix);
670
671/* End patch */
672    }                           // end of iso code
673
674    if (bkpinfo->backup_media_type == nfs) {
675        if (bkpinfo->nfs_mount) {
676            strcpy(hostname, bkpinfo->nfs_mount);
677        } else {
678            log_it("nfs_mount is NULL");
679            retval++;
680            strcpy(hostname, "");
681        }
682        colon = strchr(hostname, ':');
683        if (!colon) {
684            log_it("nfs mount doesn't have a colon in it");
685            retval++;
686        } else {
687            struct hostent *hent;
688
689            *colon = '\0';
690            hent = gethostbyname(hostname);
691            if (!hent) {
692                log_it("Can't resolve NFS mount (%s): %s", hostname, hstrerror(h_errno));
693                retval++;
694            } else {
695                mr_asprintf(ip_address, "%s", inet_ntoa((struct in_addr) *((struct in_addr *) hent->h_addr)));
696                mr_strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
697                mr_free(bkpinfo->nfs_mount);
698                bkpinfo->nfs_mount = ip_address;
699            }
700        }
701        store_nfs_config();
702    }
703
704    log_it("Finished processing incoming params");
705    if (retval) {
706        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
707    }
708    if (bkpinfo->include_paths == NULL) {
709        mr_asprintf(p, "/");
710        bkpinfo->include_paths = p;
711    }
712    g_backup_media_type = bkpinfo->backup_media_type;
713    paranoid_free(mtpt);
714    paranoid_free(hostname);
715    paranoid_free(cdr_exe);
716    return (retval);
717}
718
719
720
721/**
722 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
723 * Seeds the random-number generator, loads important modules, checks the sanity
724 * of the user's Linux distribution, and deletes logfile.
725 * @param bkpinfo The backup information structure. Will be initialized.
726 * @return number of errors (0 for success)
727 */
728int pre_param_configuration()
729{
730    int res = 0;
731    char *tmp = NULL;
732
733    make_hole_for_dir(MNT_CDROM);
734    assert(bkpinfo != NULL);
735    srandom((unsigned long) (time(NULL)));
736    insmod_crucial_modules();
737    if (bkpinfo->disaster_recovery) {
738        if (!does_nonMS_partition_exist()) {
739            fatal_error
740                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
741        }
742    }
743
744    unlink(MONDO_TRACEFILE);
745    mr_asprintf(tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
746    run_program_and_log_output(tmp, FALSE);
747    paranoid_free(tmp);
748    if (find_and_store_mondoarchives_home(g_mondo_home)) {
749        fprintf(stderr,
750                "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");
751        res++;
752        return (res);
753    }
754    res += some_basic_system_sanity_checks();
755    if (res) {
756        log_it("Your distribution did not pass Mondo's sanity test.");
757    }
758    g_current_media_number = 1;
759    return (res);
760}
761
762void setup_tmpdir(char *path) {
763
764    char *tmp = NULL;
765    char *p = NULL;
766
767    if ((bkpinfo->tmpdir != NULL) && (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL)) {
768        /* purging a potential old tmpdir */
769        log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
770        mr_asprintf(tmp,"rm -Rf %s",bkpinfo->tmpdir);
771        mr_free(bkpinfo->tmpdir);
772        (void)system(tmp);
773        mr_free(tmp);
774    }
775
776    if (path != NULL) {
777        mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", path);
778    } else if (getenv("TMPDIR")) {
779        mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
780    } else if (getenv("TMP")) {
781        mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
782    } else {
783        mr_asprintf(tmp, "/tmp/mondo.tmp.XXXXXX");
784    }
785    p = mkdtemp(tmp);
786    if (p == NULL) {
787        log_it("Failed to create global tmp directory %s for Mondo.",tmp);
788        mr_free(tmp);
789        finish(-1);
790    }
791
792    bkpinfo->tmpdir = p;
793    log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
794}
795
796/* Free all memory allocated into bkpinfo */
797void mr_free_bkpinfo() {
798
799    mr_free(bkpinfo->media_device);
800    mr_free(bkpinfo->boot_device);
801    mr_free(bkpinfo->zip_exe);
802    mr_free(bkpinfo->zip_suffix);
803    mr_free(bkpinfo->image_devs);
804    mr_free(bkpinfo->isodir);
805    mr_free(bkpinfo->prefix);
806    mr_free(bkpinfo->scratchdir);
807    mr_free(bkpinfo->tmpdir);
808    mr_free(bkpinfo->include_paths);
809    mr_free(bkpinfo->exclude_paths);
810    mr_free(bkpinfo->restore_path);
811    mr_free(bkpinfo->call_before_iso);
812    mr_free(bkpinfo->call_make_iso);
813    mr_free(bkpinfo->call_burn_iso);
814    mr_free(bkpinfo->call_after_iso);
815    mr_free(bkpinfo->kernel_path);
816    mr_free(bkpinfo->nfs_mount);
817    mr_free(bkpinfo->nfs_remote_dir);
818    mr_free(bkpinfo->nfs_user);
819    mr_free(bkpinfo->postnuke_tarball);
820
821    /* Then free the structure */
822    mr_free(bkpinfo);
823}
824
825/**
826 * Reset all fields of the backup information structure to a sensible default.
827 * @param bkpinfo The @c bkpinfo to reset.
828 */
829void init_bkpinfo()
830{
831    int i;
832    log_msg(1, "Hi");
833
834    /* Initialized in same order as in the structure declaration to detect errors more easily */
835    bkpinfo->media_device = NULL;
836    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
837        bkpinfo->media_size[i] = -1;
838    }
839    bkpinfo->boot_loader = '\0';
840    bkpinfo->boot_device = NULL;
841    bkpinfo->zip_exe = NULL;
842    bkpinfo->zip_suffix = NULL;
843    bkpinfo->image_devs = NULL;
844    bkpinfo->compression_level = 3;
845    bkpinfo->use_lzo = FALSE;
846    bkpinfo->use_gzip = FALSE;
847    bkpinfo->verify_data = FALSE;
848    bkpinfo->backup_data = FALSE;
849    bkpinfo->restore_data = FALSE;
850    bkpinfo->use_star = FALSE;
851    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
852    bkpinfo->disaster_recovery = (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
853    if (bkpinfo->disaster_recovery) {
854        mr_asprintf(bkpinfo->isodir, "%s", "/");
855    } else {
856        mr_asprintf(bkpinfo->isodir, "%s", MONDO_CACHE);
857    }
858    mr_asprintf(bkpinfo->prefix, "%s", STD_PREFIX);
859    bkpinfo->scratchdir = NULL;     // Really setup after
860    bkpinfo->tmpdir = NULL;         // Really setup after
861    bkpinfo->optimal_set_size = 0;
862    bkpinfo->backup_media_type = none;
863    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
864    bkpinfo->include_paths = NULL;
865    bkpinfo->exclude_paths = NULL;
866    bkpinfo->restore_path = NULL;
867    bkpinfo->call_before_iso = NULL;
868    bkpinfo->call_make_iso = NULL;
869    bkpinfo->call_burn_iso = NULL;
870    bkpinfo->call_after_iso = NULL;
871    bkpinfo->kernel_path = NULL;
872    bkpinfo->nfs_mount = NULL;
873    bkpinfo->nfs_remote_dir = NULL;
874    bkpinfo->nfs_user = NULL;
875    bkpinfo->postnuke_tarball = NULL;
876    bkpinfo->wipe_media_first = FALSE;
877    bkpinfo->differential = 0;
878    bkpinfo->please_dont_eject = FALSE;
879    bkpinfo->cdrw_speed = 0;
880    bkpinfo->manual_cd_tray = FALSE;
881    bkpinfo->nonbootable_backup = FALSE;
882    bkpinfo->make_cd_use_lilo = FALSE;
883    bkpinfo->use_obdr = FALSE;
884    bkpinfo->restore_mode = interactive;
885
886    setup_tmpdir(NULL);
887    sensibly_set_scratchdir();
888}
889
890
891
892
893/**
894 * Get the remaining free space (in MB) on @p partition.
895 * @param partition The partition to check free space on (either a device or a mountpoint).
896 * @return The free space on @p partition, in MB.
897 */
898long free_space_on_given_partition(char *partition)
899{
900    char *out_sz = NULL;
901    char *command = NULL;
902    long res;
903
904    assert_string_is_neither_NULL_nor_zerolength(partition);
905
906    mr_asprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
907    if (system(command)) {
908        mr_free(command);
909        return (-1);
910    }                           // partition does not exist
911    mr_free(command);
912
913    mr_asprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4", partition);
914    mr_asprintf(out_sz, "%s", call_program_and_get_last_line_of_output(command));
915    mr_free(command);
916
917    if (strlen(out_sz) == 0) {
918        mr_free(out_sz);
919        return (-1);
920    }                           // error within df, probably
921    res = atol(out_sz);
922    mr_free(out_sz);
923    return (res);
924}
925
926
927
928/**
929 * Check the user's system for sanity. Checks performed:
930 * - make sure user has enough RAM (32mb required, 64mb recommended)
931 * - make sure user has enough free space in @c /
932 * - check kernel for ramdisk support
933 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
934 * - make sure CD-ROM is unmounted
935 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
936 *
937 * @return number of problems with the user's setup (0 for success)
938 */
939int some_basic_system_sanity_checks()
940{
941
942    /*@ buffers ************ */
943    char *tmp = NULL;
944
945    /*@ int's *************** */
946    int retval = 0;
947
948    mvaddstr_and_log_it(g_currentY, 0,
949                        "Checking sanity of your Linux distribution");
950#ifndef __FreeBSD__
951    if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
952        && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
953        log_it
954            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
955        run_program_and_log_output
956            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
957    }
958    mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
959    if (atol(tmp) < 35000) {
960        retval++;
961        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
962    }
963    if (atol(tmp) < 66000) {
964        log_to_screen("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
965    }
966    mr_free(tmp);
967#endif
968
969    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
970        retval++;
971        log_to_screen
972            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
973        fatal_error
974            ("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. :)");
975    }
976#ifndef __FreeBSD__
977    if (run_program_and_log_output
978        ("grep ramdisk /proc/devices", FALSE)) {
979        /* Some SuSE have ramdisk as modules, so insert it first, then test again */
980        run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
981        if (run_program_and_log_output
982            ("grep ramdisk /proc/devices", FALSE)) {
983            if (!ask_me_yes_or_no
984                ("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?"))
985            {
986                //          retval++;
987                log_to_screen
988                    ("It looks as if your kernel lacks ramdisk and initrd support.");
989                log_to_screen
990                    ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
991            }
992        }
993    }
994#endif
995    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
996    retval += whine_if_not_found("mkisofs");
997    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
998        retval += whine_if_not_found("cdrecord");
999    }
1000    retval += whine_if_not_found("bzip2");
1001    retval += whine_if_not_found("gzip");
1002    retval += whine_if_not_found("awk");
1003    retval += whine_if_not_found("md5sum");
1004    retval += whine_if_not_found("strings");
1005    retval += whine_if_not_found("mindi");
1006    retval += whine_if_not_found("buffer");
1007
1008    // abort if Windows partition but no ms-sys and parted
1009    if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
1010        log_to_screen("I think you have a Windows 9x partition.");
1011        retval += whine_if_not_found("parted");
1012    }
1013
1014    tmp = find_home_of_exe("cmp");
1015    if (!tmp) {
1016        mr_free(tmp);
1017        tmp = find_home_of_exe("true");
1018        if (!tmp) {
1019            retval += whine_if_not_found("cmp");
1020        } else {
1021            log_to_screen("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1022            if (run_program_and_log_output("cp -f `which true` /usr/bin/cmp", 0)) {
1023                mr_free(tmp);
1024                fatal_error("Failed to create dummy 'cmp' file.");
1025            }
1026        }
1027    }
1028    mr_free(tmp);
1029
1030    run_program_and_log_output("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1031    mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("mount | grep -E \"cdr(om|w)\""));
1032    if (strcmp("", tmp)) {
1033        if (strstr(tmp, "autofs")) {
1034            log_to_screen
1035                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1036            log_to_screen
1037                ("if a CD actually is inserted. If a CD is inserted, please");
1038            log_to_screen("eject it. Thank you.");
1039            log_it
1040                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1041        } else
1042            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1043            retval++;
1044            mr_free(tmp);
1045            fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
1046        }
1047    }
1048    mr_free(tmp);
1049
1050    run_program_and_log_output("cat /etc/fstab", 5);
1051#ifdef __FreeBSD__
1052    run_program_and_log_output("vinum printconfig", 5);
1053#else
1054    run_program_and_log_output("cat /etc/raidtab", 5);
1055#endif
1056
1057    if (run_program_and_log_output("mindi -V", 1)) {
1058        log_to_screen("Could not ascertain mindi's version number.");
1059        log_to_screen
1060            ("You have not installed Mondo and/or Mindi properly.");
1061        log_to_screen("Please uninstall and reinstall them both.");
1062        fatal_error("Please reinstall Mondo and Mindi.");
1063    }
1064    mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1065    if (run_program_and_log_output(tmp, 5)) {
1066        mr_free(tmp);
1067        mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1068        log_to_screen(tmp);
1069        log_to_screen
1070            ("Please run that command by hand and examine /var/log/mindi.log");
1071        log_to_screen
1072            ("for more information. Perhaps your /etc/fstab file is insane.");
1073        log_to_screen
1074            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1075        retval++;
1076    }
1077    mr_free(tmp);
1078
1079    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1080        && !does_file_exist("/etc/raidtab")) {
1081        log_to_screen
1082            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1083        create_raidtab_from_mdstat("/etc/raidtab");
1084    }
1085
1086    if (retval) {
1087        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1088    } else {
1089        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1090    }
1091    return (retval);
1092}
1093
1094/**
1095 * Retrieve the line containing @p label from the config file.
1096 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1097 * @param label What to read from the file.
1098 * @param value Where to put it.
1099 * @return 0 for success, 1 for failure.
1100 */
1101char *read_cfg_var(char *config_file, char *label)
1102{
1103    /*@ buffer ****************************************************** */
1104    char *command = NULL;
1105    char *value = NULL;
1106
1107    /*@ end vars *************************************************** */
1108
1109    assert_string_is_neither_NULL_nor_zerolength(config_file);
1110    assert_string_is_neither_NULL_nor_zerolength(label);
1111    if (!does_file_exist(config_file)) {
1112        log_to_screen("(read_cfg_var) Cannot find %s config file", config_file);
1113        return (NULL);
1114        /* BERLIOS: not sure the sage of this one ?
1115    } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1116        log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1117        return (0);
1118        */
1119    } else {
1120        mr_asprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1121        mr_asprintf(value, "%s", call_program_and_get_last_line_of_output(command));
1122        mr_free(command);
1123
1124        if (strlen(value) == 0) {
1125            return (NULL);
1126        } else {
1127            return (value);
1128        }
1129    }
1130}
1131
1132
1133
1134/**
1135 * Remount @c supermount if it was unmounted earlier.
1136 */
1137void remount_supermounts_if_necessary()
1138{
1139    if (g_remount_cdrom_at_end) {
1140        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1141    }
1142    if (g_remount_floppy_at_end) {
1143        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1144    }
1145}
1146
1147/**
1148 * Unmount @c supermount if it's mounted.
1149 */
1150void unmount_supermounts_if_necessary()
1151{
1152    if (run_program_and_log_output
1153        ("mount | grep cdrom | grep super", FALSE) == 0) {
1154        g_remount_cdrom_at_end = TRUE;
1155        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1156    }
1157    if (run_program_and_log_output
1158        ("mount | grep floppy | grep super", FALSE) == 0) {
1159        g_remount_floppy_at_end = TRUE;
1160        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1161    }
1162}
1163
1164/**
1165 * Whether we had to stop autofs (if so, restart it at end).
1166 */
1167bool g_autofs_stopped = FALSE;
1168
1169/**
1170 * Path to the autofs initscript ("" if none exists).
1171 */
1172char g_autofs_exe[MAX_STR_LEN];
1173
1174/**
1175 * Autofs initscript in Xandros Linux distribution.
1176 */
1177#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1178
1179/**
1180 * Autofs initscript in most Linux distributions.
1181 */
1182#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1183
1184/**
1185 * If autofs is mounted, stop it (restart at end).
1186 */
1187void stop_autofs_if_necessary()
1188{
1189    char *tmp = NULL;
1190
1191    g_autofs_exe[0] = '\0';
1192    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1193        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1194    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1195        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1196    }
1197
1198    if (!g_autofs_exe[0]) {
1199        log_msg(3, "No autofs detected.");
1200    } else {
1201        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1202        // FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1203        mr_asprintf(tmp, "%s stop", g_autofs_exe);
1204        if (run_program_and_log_output(tmp, 2)) {
1205            log_it("Failed to stop autofs - I assume it wasn't running");
1206        } else {
1207            g_autofs_stopped = TRUE;
1208            log_it("Stopped autofs OK");
1209        }
1210        mr_free(tmp);
1211    }
1212}
1213
1214/**
1215 * If autofs was stopped earlier, restart it.
1216 */
1217void restart_autofs_if_necessary()
1218{
1219    char *tmp = NULL;
1220
1221    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1222        log_msg(3, "No autofs detected.");
1223        return;
1224    }
1225    mr_asprintf(tmp, "%s start", g_autofs_exe);
1226    if (run_program_and_log_output(tmp, 2)) {
1227        log_it("Failed to start autofs");
1228    } else {
1229        g_autofs_stopped = FALSE;
1230        log_it("Started autofs OK");
1231    }
1232    mr_free(tmp);
1233}
1234
1235
1236/**
1237 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1238 */
1239void mount_boot_if_necessary() {
1240    char *tmp = NULL;
1241    char *command = NULL;
1242
1243    log_msg(1, "Started sub");
1244    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1245    g_boot_mountpt[0] = '\0';
1246    log_msg(4, "Done. Great. Seeting command to something");
1247    mr_asprintf(command, "%s", "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[   ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1248    log_msg(4, "Cool. Command = '%s'", command);
1249    mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
1250    mr_free(command);
1251
1252    log_msg(4, "tmp = '%s'", tmp);
1253    log_it("/boot is at %s according to /etc/fstab", tmp);
1254    mr_asprintf(command, "mount | grep -Ew '/boot'");
1255    mr_free(tmp);
1256    mr_asprintf(tmp, call_program_and_get_last_line_of_output(command));
1257    mr_free(command);
1258
1259    if (!strcmp(tmp,"")) {
1260        if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1261            if (!run_program_and_log_output("mount /boot", 5)) {
1262                strcpy(g_boot_mountpt, "/boot");
1263                log_msg(1, "Mounted /boot");
1264            } else {
1265                log_it("...ignored cos it's a label or uuid :-)");
1266            }
1267        } else {
1268            mr_asprintf(command, "mount | grep -E '^%s'", tmp);
1269            log_msg(3, "command = %s", command);
1270            if (run_program_and_log_output(command, 5)) {
1271                strcpy(g_boot_mountpt, tmp);
1272                mr_free(tmp);
1273                log_it("%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1274
1275                mr_asprintf(tmp, "mount %s", g_boot_mountpt);
1276                if (run_program_and_log_output(tmp, 5)) {
1277                    g_boot_mountpt[0] = '\0';
1278                    log_msg(1, "Plan B");
1279                    if (!run_program_and_log_output("mount /boot", 5)) {
1280                        strcpy(g_boot_mountpt, "/boot");
1281                        log_msg(1, "Plan B worked");
1282                    } else {
1283                        log_msg(1,
1284                            "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1285                    }
1286                }
1287            }
1288            mr_free(command);
1289        }
1290    }
1291    mr_free(tmp);
1292    log_msg(1, "Ended sub");
1293}
1294
1295
1296/**
1297 * If we mounted /boot earlier, unmount it.
1298 */
1299void unmount_boot_if_necessary()
1300{
1301    char *tmp = NULL;
1302
1303    log_msg(3, "starting");
1304    if (g_boot_mountpt[0]) {
1305        mr_asprintf(tmp, "umount %s", g_boot_mountpt);
1306        if (run_program_and_log_output(tmp, 5)) {
1307            log_it("WARNING - unable to unmount /boot");
1308        }
1309        mr_free(tmp);
1310    }
1311    log_msg(3, "leaving");
1312}
1313
1314
1315
1316/**
1317 * Write a line to a configuration file. Writes a line of the form,
1318 * @c label @c value.
1319 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1320 * @param label What to call this bit of data you're writing.
1321 * @param value The bit of data you're writing.
1322 * @return 0 for success, 1 for failure.
1323 */
1324int write_cfg_var(char *config_file, char *label, char *value)
1325{
1326    /*@ buffers ***************************************************** */
1327    char *command = NULL;
1328    char *tempfile = NULL;
1329
1330
1331    /*@ end vars *************************************************** */
1332    assert_string_is_neither_NULL_nor_zerolength(config_file);
1333    assert_string_is_neither_NULL_nor_zerolength(label);
1334    assert(value != NULL);
1335    if (!does_file_exist(config_file)) {
1336        log_to_screen("(write_cfg_file) Cannot find %s config file", config_file);
1337        return (1);
1338    }
1339    mr_asprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1340    if (does_file_exist(config_file)) {
1341        mr_asprintf(command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1342        paranoid_system(command);
1343        mr_free(command);
1344    }
1345    mr_asprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1346    paranoid_system(command);
1347    mr_free(command);
1348
1349    mr_asprintf(command, "mv -f %s %s", tempfile, config_file);
1350    paranoid_system(command);
1351    mr_free(command);
1352    unlink(tempfile);
1353    mr_free(tempfile);
1354    return (0);
1355}
1356
1357
1358/**
1359 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1360 * information to the logfile.
1361 */
1362void standard_log_debug_msg(int debug_level, const char *szFile,
1363                            const char *szFunction, int nLine,
1364                            const char *fmt, ...)
1365{
1366    va_list args;
1367    int i;
1368    static int depth = 0;
1369    FILE *fout;
1370
1371    if (depth > 5) {
1372        depth--;
1373        return;
1374    }
1375    depth++;
1376
1377    if (debug_level <= g_loglevel) {
1378        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1379            return;
1380        }
1381
1382        // add tabs to distinguish log levels
1383        if (debug_level > 0) {
1384            for (i = 1; i < debug_level; i++)
1385                fprintf(fout, "\t");
1386            if (getpid() == g_main_pid)
1387                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1388            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1389                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1390            else
1391                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1392        }
1393        va_start(args, fmt);
1394        vfprintf(fout, fmt, args);
1395        va_end(args);
1396
1397        // do not slow down the progran if standard debug level
1398        // must be enabled: if no flush, the log won't be up-to-date if there
1399        // is a segfault
1400        //if (g_dwDebugLevel != 1)
1401
1402        fprintf(fout, "\n");
1403        paranoid_fclose(fout);
1404    }
1405    depth--;
1406}
1407
1408/**
1409 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1410 */
1411void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1412                       ...) = standard_log_debug_msg;
1413
1414
1415/**
1416 * Allocate or free important globals, depending on @p mal.
1417 * @param mal If TRUE, malloc; if FALSE, free.
1418 */
1419void do_libmondo_global_strings_thing(int mal)
1420{
1421    if (mal) {
1422        malloc_string(g_boot_mountpt);
1423        malloc_string(g_mondo_home);
1424        malloc_string(g_magicdev_command);
1425    } else {
1426        paranoid_free(g_boot_mountpt);
1427        paranoid_free(g_mondo_home);
1428        paranoid_free(g_magicdev_command);
1429
1430        mr_free(g_serial_string);
1431    }
1432}
1433
1434/**
1435 * Allocate important globals.
1436 * @see do_libmondo_global_strings_thing
1437 */
1438void malloc_libmondo_global_strings(void)
1439{
1440    do_libmondo_global_strings_thing(1);
1441}
1442
1443/**
1444 * Free important globals.
1445 * @see do_libmondo_global_strings_thing
1446 */
1447void free_libmondo_global_strings(void)
1448{
1449    do_libmondo_global_strings_thing(0);
1450}
1451
1452
1453
1454/**
1455 * Stop @c magicdev if it's running.
1456 * The command used to start it is saved in @p g_magicdev_command.
1457 */
1458void stop_magicdev_if_necessary()
1459{
1460    strcpy(g_magicdev_command,
1461           call_program_and_get_last_line_of_output
1462           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1463    if (g_magicdev_command[0]) {
1464        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1465        paranoid_system("killall magicdev");
1466    }
1467}
1468
1469
1470/**
1471 * Restart magicdev if it was stopped.
1472 */
1473void restart_magicdev_if_necessary()
1474{
1475    char *tmp = NULL;
1476
1477    if (g_magicdev_command && g_magicdev_command[0]) {
1478        mr_asprintf(tmp, "%s &", g_magicdev_command);
1479        paranoid_system(tmp);
1480        mr_free(tmp);
1481    }
1482}
1483
1484/* @} - end of utilityGroup */
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