source: branches/2.2.10/mondo/src/common/libmondo-tools.c @ 2607

Last change on this file since 2607 was 2607, checked in by bruno, 9 years ago

r3763@localhost: bruno | 2010-03-18 12:03:49 +0100

  • Fix CMDLINE variable initialization to do it after /proc is mounted
  • Fix backup-media-type handling in mondorestore (wrong test)
  • Property svn:keywords set to Id
File size: 38.6 KB
Line 
1/*
2   $Id: libmondo-tools.c 2607 2010-03-22 12:56:46Z 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 2607 2010-03-22 12:56:46Z 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    if (!g_text_mode)
111        newtSuspend();
112    printf("ASSERTION FAILED: `%s'\n", exp);
113    printf("\tat %s:%d in %s\n\n", file, line, function);
114    printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
115    do {
116        is_valid = TRUE;
117        switch (toupper(getchar())) {
118        case 'A':               // ignore (A)ll
119            ignoring_assertions = 1;
120            break;
121        case 'B':               // a(B)ort
122            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
123            raise(SIGABRT);
124            break;              /* "can't get here" */
125        case 'D':               // (D)ebug, aka asm("int 3")
126#ifdef __IA32__
127            __asm__ __volatile__("int $3"); // break to debugger
128#endif
129            break;
130        case 'E':               // (E)xit
131            fatal_error("Failed assertion -- see above for details");
132            break;              /* "can't get here" */
133        case 'I':               // (I)gnore
134            break;
135            /* These next two work as follows:
136               the `default' catches the user's invalid choice and says so;
137               the '\n' catches the newline on the end and prints the prompt again.
138             */
139        case '\n':
140            printf
141                ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
142            break;
143        default:
144            is_valid = FALSE;
145            printf("Invalid choice.\n");
146            break;
147        }
148    } while (!is_valid);
149
150    if (ignoring_assertions) {
151        log_it("Ignoring ALL assertions from now on.");
152    } else {
153        log_it("Ignoring assertion: %s", exp);
154    }
155
156    getchar();                  // skip \n
157
158    if (!g_text_mode)
159        newtResume();
160}
161
162/**
163 * Clean's up users' KDE desktops.
164 * @bug Details about this function are unknown.
165 */
166void clean_up_KDE_desktop_if_necessary(void)
167{
168    char *tmp = NULL;
169
170    mr_asprintf(tmp, "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } else { print $0;};}' $file.old  > $file ; fi ; done");
171    run_program_and_log_output(tmp, 5);
172    mr_free(tmp);
173}
174
175
176/**
177 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
178 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
179 *
180 * @param home_sz String to store the home directory ("" if it could not be found).
181 * @return 0 for success, nonzero for failure.
182 */
183int find_and_store_mondoarchives_home(char *home_sz)
184{
185    assert(home_sz != NULL);
186    strcpy(home_sz, MONDO_SHARE);
187    return (0);
188}
189
190
191char *get_architecture(void) {
192#ifdef __IA32__
193#   ifdef __X86_64__
194        return ("x86_64");
195#   else
196        return ("i386");
197#   endif
198#endif
199#ifdef __IA64__
200    return ("ia64");
201#endif
202    return ("unknown");
203}
204
205
206char *get_uname_m(void) {
207
208    struct utsname utsn;
209    char *tmp = NULL;
210
211    uname(&utsn);
212    mr_asprintf(tmp, "%s", utsn.machine);
213    return (tmp);
214}
215
216
217
218double get_kernel_version(void)
219{
220    char *p = NULL;
221    char *tmp = NULL;
222    double d;
223#ifdef __FreeBSD__
224    // JOSH - FIXME :)
225    d = 5.2;                    // :-)
226#else
227    tmp = call_program_and_get_last_line_of_output("uname -r");
228    p = strchr(tmp, '.');
229    if (p) {
230        p = strchr(++p, '.');
231        if (p) {
232            while (*p) {
233                *p = *(p + 1);
234                p++;
235            }
236        }
237    }
238    d = atof(tmp);
239    mr_free(tmp);
240#endif
241    log_msg(1, "g_kernel_version = %f", d);
242    return (d);
243}
244
245
246/**
247 * Get the current time.
248 * @return number of seconds since the epoch.
249 */
250long get_time()
251{
252    return (long) time((void *) 0);
253}
254
255
256/**
257 * Initialize a RAID volume structure, setting fields to zero. The
258 * actual hard drive is unaffected.
259 *
260 * @param raidrec The RAID volume structure to initialize.
261 * @note This function is system dependent.
262 */
263#ifdef __FreeBSD__
264void initialize_raidrec(struct vinum_volume *raidrec)
265{
266    int i, j;
267    raidrec->volname[0] = '\0';
268    raidrec->plexes = 0;
269    for (i = 0; i < 9; ++i) {
270        raidrec->plex[i].raidlevel = -1;
271        raidrec->plex[i].stripesize = 0;
272        raidrec->plex[i].subdisks = 0;
273        for (j = 0; j < 9; ++j) {
274            strcpy(raidrec->plex[i].sd[j].which_device, "");
275        }
276    }
277}
278#else
279void initialize_raidrec(struct raid_device_record *raidrec)
280{
281    assert(raidrec != NULL);
282    raidrec->raid_device[0] = '\0';
283    raidrec->raid_level = -9;
284    raidrec->persistent_superblock = 1;
285    raidrec->chunk_size = 64;
286    raidrec->parity = -1;
287    raidrec->data_disks.entries = 0;
288    raidrec->spare_disks.entries = 0;
289    raidrec->parity_disks.entries = 0;
290    raidrec->failed_disks.entries = 0;
291    raidrec->additional_vars.entries = 0;
292}
293#endif
294
295
296
297
298/**
299 * Insert modules that Mondo requires.
300 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
301 * @c msdosfs and @c ext2fs for FreeBSD.
302 */
303void insmod_crucial_modules(void)
304{
305#ifdef __FreeBSD__
306    system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
307    system("kldstat | grep ext2fs  || kldload ext2fs 2> /dev/null");
308#else
309    system("modprobe -a msdos vfat loop &> /dev/null");
310#endif
311}
312
313
314/**
315 * Finish configuring the backup information structure. Call this function
316 * to set the parameters that depend on those that can be given on the command
317 * line.
318 *
319 * @param bkpinfo The backup information structure. Fields modified/used:
320 * - Used: @c bkpinfo->backup_data
321 * - Used: @c bkpinfo->backup_media_type
322 * - Used: @c bkpinfo->cdrw_speed
323 * - Used: @c bkpinfo->compression_level
324 * - Used: @c bkpinfo->include_paths
325 * - Used: @c bkpinfo->prefix
326 * - Used: @c bkpinfo->isodir
327 * - Used: @c bkpinfo->manual_cd_tray
328 * - Used: @c bkpinfo->make_cd_use_lilo
329 * - Used: @c bkpinfo->media_device
330 * - Used: @c bkpinfo->netfs_mount
331 * - Used: @c bkpinfo->nonbootable_backup
332 * - Used: @c bkpinfo->scratchdir
333 * - Used: @c bkpinfo->tmpdir
334 * - Used: @c bkpinfo->use_lzo
335 * - Modified: @c bkpinfo->call_before_iso
336 * - Modified: @c bkpinfo->call_make_iso
337 * - Modified: @c bkpinfo->optimal_set_size
338 * - Modified: @c bkpinfo->zip_exe
339 * - Modified: @c bkpinfo->zip_suffix
340 *
341 * @return number of errors, or 0 for success.
342 * @note Also creates directories that are specified in the @c bkpinfo structure but
343 * do not exist.
344 */
345int post_param_configuration()
346{
347    char *extra_cdrom_params = NULL;
348    char *mondo_mkisofs_sz = NULL;
349    char *command = NULL;
350    char *hostname = NULL;
351    char *ip_address = NULL;
352    int retval = 0;
353    char *colon;
354    char *cdr_exe = NULL;
355    char *tmp = NULL;
356    char *p = NULL;
357    char *call_before_iso_user = NULL;
358    char *iso_dev = NULL;
359    char *iso_mnt = NULL;
360    char *iso_tmp = NULL;
361    char *iso_path = NULL;
362
363    assert(bkpinfo != NULL);
364
365    if (!bkpinfo->tmpdir) {
366        fatal_error("Tmpdir set to NULL !");
367    }
368
369    bkpinfo->optimal_set_size =
370        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
371        1024;
372
373    if (strlen(bkpinfo->tmpdir) < 2) {
374        log_it("tmpdir is blank/missing");
375        retval++;
376    }
377
378    log_msg(1, "Foo");
379    if (bkpinfo->backup_media_type == tape) {
380        log_msg(1, "Bar");
381        if (bkpinfo->media_device == NULL) {
382            return(1);
383        }
384        mr_asprintf(tmp, "mt -f %s status", bkpinfo->media_device);
385        log_msg(1, "tmp = '%s'", tmp);
386        if (run_program_and_log_output(tmp, 3)) {
387            mr_free(tmp);
388            fatal_error
389                ("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.");
390        }
391        mr_free(tmp);
392    }
393    if (bkpinfo->scratchdir) {
394        make_hole_for_dir(bkpinfo->scratchdir);
395        chmod(bkpinfo->scratchdir, 0700);
396    } else {
397        fatal_error("Scratchdir set to NULL !");
398    }
399    if (bkpinfo->backup_media_type == iso)
400        make_hole_for_dir(bkpinfo->isodir);
401
402    run_program_and_log_output("uname -a", 5);
403    run_program_and_log_output("cat /etc/*-release", 5);
404    run_program_and_log_output("cat /etc/*issue*", 5);
405#ifdef __FreeBSD__
406#else
407    run_program_and_log_output("cat /proc/cpuinfo", 5);
408    run_program_and_log_output
409        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
410         5);
411#endif
412
413    if (bkpinfo->use_lzo) {
414        mr_asprintf(bkpinfo->zip_exe, "lzop");
415        mr_asprintf(bkpinfo->zip_suffix, "lzo");
416    } else if (bkpinfo->use_gzip) {
417        mr_asprintf(bkpinfo->zip_exe, "gzip");
418        mr_asprintf(bkpinfo->zip_suffix, "gz");
419    } else if (bkpinfo->use_lzma) {
420        mr_asprintf(bkpinfo->zip_exe, "lzma");
421        mr_asprintf(bkpinfo->zip_suffix, "lzma");
422    } else if (bkpinfo->compression_level != 0) {
423        mr_asprintf(bkpinfo->zip_exe, "bzip2");
424        mr_asprintf(bkpinfo->zip_suffix, "bz2");
425    } else {
426        mr_asprintf(bkpinfo->zip_exe, "none");
427        mr_asprintf(bkpinfo->zip_suffix, "");
428    }
429
430// DVD
431
432    if (bkpinfo->backup_media_type == dvd) {
433        tmp = find_home_of_exe("growisofs");
434        if (tmp) {
435            mr_asprintf(cdr_exe, "growisofs");
436        }                       // unlikely to be used
437        else {
438            mr_free(tmp);
439            fatal_error("Please install growisofs.");
440        }
441        mr_free(tmp);
442
443        if (bkpinfo->nonbootable_backup) {
444            mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
445        } else if
446#ifdef __FreeBSD__
447            (TRUE)
448#else
449            (bkpinfo->make_cd_use_lilo)
450#endif
451#ifdef __IA64__
452    {
453        mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
454    }
455#else
456    {
457        mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
458    }
459#endif
460        else
461        {
462            mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
463        }
464        if (bkpinfo->manual_cd_tray) {
465            paranoid_free(mondo_mkisofs_sz);
466            fatal_error("Manual CD tray + DVD not supported yet.");
467            // -m isn't supported by growisofs, BTW...
468        } else {
469            if (bkpinfo->media_device == NULL) {
470                return(1);
471            }
472            mr_free(bkpinfo->call_make_iso);
473            mr_asprintf(bkpinfo->call_make_iso, "%s %s -Z %s . 2>> _ERR_", mondo_mkisofs_sz, "", bkpinfo->media_device);
474            paranoid_free(mondo_mkisofs_sz);
475        }
476        if (getenv ("SUDO_COMMAND")) {
477            mr_asprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
478            tmp = call_program_and_get_last_line_of_output(command);
479            if (!strcmp(tmp, "1")) {
480                mr_free(command);
481                mr_free(tmp);
482                popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
483                fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
484            }       
485            mr_free(command);
486            mr_free(tmp);
487        }
488        log_msg(2, "call_make_iso (DVD res) is ... %s", bkpinfo->call_make_iso);
489    }                           // end of DVD code
490
491// CD-R or CD-RW
492    if (bkpinfo->backup_media_type == cdrw
493        || bkpinfo->backup_media_type == cdr) {
494        if (!bkpinfo->manual_cd_tray) {
495            mr_asprintf(extra_cdrom_params, "-waiti ");
496        }
497        if (bkpinfo->backup_media_type == cdrw) {
498            mr_asprintf(extra_cdrom_params, "blank=fast ");
499        }
500        tmp = find_home_of_exe("cdrecord");
501        if (tmp) {
502            mr_asprintf(cdr_exe, "cdrecord");
503        } else {
504            mr_free(tmp);
505            tmp = find_home_of_exe("dvdrecord");
506            if (tmp) {
507                mr_asprintf(cdr_exe, "dvdrecord");
508            } else {
509                mr_free(tmp);
510                fatal_error("Please install either cdrecord or dvdrecord.");
511            }
512        }
513        mr_free(tmp);
514
515        if (bkpinfo->nonbootable_backup) {
516            mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
517        } else if
518#ifdef __FreeBSD__
519            (TRUE)
520#else
521            (bkpinfo->make_cd_use_lilo)
522#endif
523#ifdef __IA64__
524    {
525        mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
526    }
527#else
528    {
529        mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
530    }
531#endif
532        else {
533            mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
534        }
535
536        mr_free(bkpinfo->call_make_iso);
537        if (bkpinfo->manual_cd_tray) {
538            if (bkpinfo->call_before_iso == NULL) {
539                mr_asprintf(bkpinfo->call_before_iso, "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_", mondo_mkisofs_sz, bkpinfo->tmpdir);
540            } else {
541                mr_asprintf(call_before_iso_user, "%s", bkpinfo->call_before_iso);
542                mr_free(bkpinfo->call_before_iso);
543                mr_asprintf(bkpinfo->call_before_iso, "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )", mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
544                mr_free(call_before_iso_user);
545            }
546            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
547            if (bkpinfo->media_device == NULL) {
548                return(1);
549            }
550            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);
551        } else {
552            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);
553        }
554        mr_free(cdr_exe);
555        paranoid_free(mondo_mkisofs_sz);
556        paranoid_free(extra_cdrom_params);
557    }                           // end of CD code
558
559    if (bkpinfo->backup_media_type == iso) {
560
561/* Patch by Conor Daly <conor.daly@met.ie>
562 * 23-june-2004
563 * Break up isodir into iso_mnt and iso_path
564 * These will be used along with iso-dev at restore time
565 * to locate the ISOs where ever they're mounted
566 */
567
568        log_it("isodir = %s", bkpinfo->isodir);
569        mr_asprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
570        log_it("command = %s", command);
571        iso_dev = call_program_and_get_last_line_of_output(command);
572        log_it("res of it = %s", iso_dev);
573        mr_free(command);
574
575        mr_asprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
576        mr_free(iso_dev);
577
578        log_it("command = %s", command);
579        iso_mnt = call_program_and_get_last_line_of_output(command);
580        log_it("res of it = %s", iso_mnt);
581        mr_free(command);
582
583        log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
584        mr_asprintf(iso_tmp, "%s", bkpinfo->isodir);
585        if (strlen(iso_tmp) < strlen(iso_mnt)) {
586            mr_asprintf(iso_path, "%s", "");
587        } else {
588            // If iso_mnt is only / then iso_path is the full dir
589            // (the formula bellow doesn't work in this case)
590            if (strcmp(iso_mnt, "/") == 0) {
591                mr_asprintf(iso_path, "%s", iso_tmp);
592            // else it's a part of iso_tmp
593            } else {
594                mr_asprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
595            }
596        }
597        mr_free(iso_mnt);
598        mr_free(iso_tmp);
599
600        log_it("isodir: %s", iso_path);
601        mr_free(iso_path);
602
603        log_it("iso-prefix: %s",  bkpinfo->prefix);
604
605/* End patch */
606    }                           // end of iso code
607
608    if (bkpinfo->backup_media_type == netfs) {
609        if (bkpinfo->netfs_mount) {
610            mr_asprintf(hostname, "%s", bkpinfo->netfs_mount);
611        } else {
612            log_it("netfs_mount is NULL");
613            retval++;
614            mr_asprintf(hostname, "");
615        }
616        colon = strchr(hostname, ':');
617        if (!colon) {
618            log_it("netfs mount doesn't have a colon in it");
619            retval++;
620        } else {
621            struct hostent *hent;
622
623            *colon = '\0';
624            hent = gethostbyname(hostname);
625            if (!hent) {
626                log_it("Can't resolve Network mount (%s): %s", hostname, hstrerror(h_errno));
627                retval++;
628            } else {
629                mr_asprintf(ip_address, "%s", inet_ntoa((struct in_addr) *((struct in_addr *) hent->h_addr)));
630                mr_strcat(ip_address, strchr(bkpinfo->netfs_mount, ':'));
631                mr_free(bkpinfo->netfs_mount);
632                bkpinfo->netfs_mount = ip_address;
633            }
634        }
635        mr_free(hostname);
636        store_netfs_config();
637    }
638
639    log_it("Finished processing incoming params");
640    if (retval) {
641        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
642    }
643    if (bkpinfo->include_paths == NULL) {
644        mr_asprintf(p, "/");
645        bkpinfo->include_paths = p;
646    }
647    g_backup_media_type = bkpinfo->backup_media_type;
648    return (retval);
649}
650
651
652
653/**
654 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
655 * Seeds the random-number generator, loads important modules, checks the sanity
656 * of the user's Linux distribution, and deletes logfile.
657 * @param bkpinfo The backup information structure. Will be initialized.
658 * @return number of errors (0 for success)
659 */
660int pre_param_configuration()
661{
662    int res = 0;
663    char *tmp = NULL;
664
665    make_hole_for_dir(MNT_CDROM);
666    assert(bkpinfo != NULL);
667    srandom((unsigned long) (time(NULL)));
668    insmod_crucial_modules();
669    if (bkpinfo->disaster_recovery) {
670        if (!does_nonMS_partition_exist()) {
671            fatal_error("I am in disaster recovery mode\nPlease don't run mondoarchive.");
672        }
673    }
674
675    mr_asprintf(tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
676    run_program_and_log_output(tmp, FALSE);
677    paranoid_free(tmp);
678    if (find_and_store_mondoarchives_home(g_mondo_home)) {
679        fprintf(stderr, "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");
680        res++;
681        return (res);
682    }
683    res += some_basic_system_sanity_checks();
684    if (res) {
685        log_it("Your distribution did not pass Mondo's sanity test.");
686    }
687    g_current_media_number = 1;
688    return (res);
689}
690
691void setup_tmpdir(char *path) {
692
693    char *tmp = NULL;
694    char *p = NULL;
695
696    if ((bkpinfo->tmpdir != NULL) && (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL)) {
697        /* purging a potential old tmpdir */
698        log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
699        mr_asprintf(tmp,"rm -Rf %s",bkpinfo->tmpdir);
700        mr_free(bkpinfo->tmpdir);
701        (void)system(tmp);
702        mr_free(tmp);
703    }
704
705    /* Always take in account env first */
706    if (getenv("TMPDIR")) {
707        mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
708    } else if (getenv("TMP")) {
709        mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
710    } else if (path != NULL) {
711        mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", path);
712    } else {
713        mr_asprintf(tmp, "/tmp/mondo.tmp.XXXXXX");
714    }
715    p = mkdtemp(tmp);
716    if (p == NULL) {
717        log_it("Failed to create global tmp directory %s for Mondo.",tmp);
718        mr_free(tmp);
719        finish(-1);
720    }
721
722    bkpinfo->tmpdir = p;
723    log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
724}
725
726/* Free all memory allocated into bkpinfo */
727void mr_free_bkpinfo() {
728
729    log_msg(1, "Freeing bkpinfo");
730    mr_free(bkpinfo->media_device);
731    mr_free(bkpinfo->boot_device);
732    mr_free(bkpinfo->zip_exe);
733    mr_free(bkpinfo->zip_suffix);
734    mr_free(bkpinfo->image_devs);
735    mr_free(bkpinfo->isodir);
736    mr_free(bkpinfo->prefix);
737    mr_free(bkpinfo->scratchdir);
738    mr_free(bkpinfo->tmpdir);
739    mr_free(bkpinfo->include_paths);
740    mr_free(bkpinfo->exclude_paths);
741    mr_free(bkpinfo->exclude_devs);
742    mr_free(bkpinfo->restore_path);
743    mr_free(bkpinfo->call_before_iso);
744    mr_free(bkpinfo->call_make_iso);
745    mr_free(bkpinfo->call_burn_iso);
746    mr_free(bkpinfo->call_after_iso);
747    mr_free(bkpinfo->kernel_path);
748    mr_free(bkpinfo->netfs_mount);
749    mr_free(bkpinfo->netfs_remote_dir);
750    mr_free(bkpinfo->netfs_user);
751    mr_free(bkpinfo->netfs_proto);
752    mr_free(bkpinfo->postnuke_tarball);
753
754    /* Then free the structure */
755    mr_free(bkpinfo);
756}
757
758/**
759 * Reset all fields of the backup information structure to a sensible default.
760 * @param bkpinfo The @c bkpinfo to reset.
761 */
762void init_bkpinfo()
763{
764    int i;
765    log_msg(1, "Initializing bkpinfo");
766    bkpinfo = (struct s_bkpinfo *)mr_malloc(sizeof(struct s_bkpinfo));
767
768    /*  We need tmpdir as early as possible for further function calls */
769    bkpinfo->tmpdir = NULL;         // Really setup after
770    setup_tmpdir(NULL);
771
772    /* Initialized in same order as in the structure declaration to detect errors more easily */
773    bkpinfo->media_device = NULL;
774    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
775        bkpinfo->media_size[i] = -1;
776    }
777    bkpinfo->boot_loader = '\0';
778    bkpinfo->boot_device = NULL;
779    bkpinfo->zip_exe = NULL;
780    bkpinfo->zip_suffix = NULL;
781    bkpinfo->image_devs = NULL;
782    bkpinfo->compression_level = 3;
783    bkpinfo->use_lzo = FALSE;
784    bkpinfo->use_gzip = FALSE;
785    bkpinfo->use_lzma = FALSE;
786    bkpinfo->verify_data = FALSE;
787    bkpinfo->backup_data = FALSE;
788    bkpinfo->restore_data = FALSE;
789    bkpinfo->use_star = FALSE;
790    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
791    bkpinfo->disaster_recovery = am_I_in_disaster_recovery_mode();
792    if (bkpinfo->disaster_recovery) {
793        mr_asprintf(bkpinfo->isodir, "%s", "/");
794    } else {
795        mr_asprintf(bkpinfo->isodir, "%s", MONDO_CACHE);
796    }
797    mr_asprintf(bkpinfo->prefix, "%s", STD_PREFIX);
798    /*   bkpinfo->tmpdir is here in the struct */
799    bkpinfo->scratchdir = NULL;     // Really setup after
800    bkpinfo->optimal_set_size = 0;
801    bkpinfo->backup_media_type = none;
802    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
803    bkpinfo->include_paths = NULL;
804    bkpinfo->exclude_paths = NULL;
805    bkpinfo->exclude_devs = NULL;
806    bkpinfo->restore_path = NULL;
807    bkpinfo->call_before_iso = NULL;
808    bkpinfo->call_make_iso = NULL;
809    bkpinfo->call_burn_iso = NULL;
810    bkpinfo->call_after_iso = NULL;
811    bkpinfo->kernel_path = NULL;
812    bkpinfo->netfs_mount = NULL;
813    bkpinfo->netfs_remote_dir = NULL;
814    bkpinfo->netfs_user = NULL;
815    bkpinfo->netfs_proto = NULL;
816    bkpinfo->postnuke_tarball = NULL;
817    bkpinfo->wipe_media_first = FALSE;
818    bkpinfo->differential = 0;
819    bkpinfo->please_dont_eject = FALSE;
820    bkpinfo->cdrw_speed = 0;
821    bkpinfo->manual_cd_tray = FALSE;
822    bkpinfo->nonbootable_backup = FALSE;
823    bkpinfo->make_cd_use_lilo = FALSE;
824    bkpinfo->use_obdr = FALSE;
825    bkpinfo->restore_mode = interactive;
826
827    sensibly_set_scratchdir();
828}
829
830
831
832
833/**
834 * Get the remaining free space (in MB) on @p partition.
835 * @param partition The partition to check free space on (either a device or a mountpoint).
836 * @return The free space on @p partition, in MB.
837 */
838long free_space_on_given_partition(char *partition)
839{
840    char *out_sz = NULL;
841    char *command = NULL;
842    long res;
843
844    assert_string_is_neither_NULL_nor_zerolength(partition);
845
846    mr_asprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
847    if (system(command)) {
848        mr_free(command);
849        return (-1);
850    }                           // partition does not exist
851    mr_free(command);
852
853    mr_asprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4", partition);
854    out_sz = call_program_and_get_last_line_of_output(command);
855    mr_free(command);
856
857    if (strlen(out_sz) == 0) {
858        mr_free(out_sz);
859        return (-1);
860    }                           // error within df, probably
861    res = atol(out_sz);
862    mr_free(out_sz);
863    return (res);
864}
865
866
867
868/**
869 * Check the user's system for sanity. Checks performed:
870 * - make sure user has enough RAM (32mb required, 64mb recommended)
871 * - make sure user has enough free space in @c /
872 * - check kernel for ramdisk support
873 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
874 * - make sure CD-ROM is unmounted
875 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
876 *
877 * @return number of problems with the user's setup (0 for success)
878 */
879int some_basic_system_sanity_checks()
880{
881
882    /*@ buffers ************ */
883    char *tmp = NULL;
884
885    /*@ int's *************** */
886    int retval = 0;
887
888    mvaddstr_and_log_it(g_currentY, 0,
889                        "Checking sanity of your Linux distribution");
890#ifndef __FreeBSD__
891    if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
892        && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
893        log_it("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
894        run_program_and_log_output("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
895    }
896    tmp = call_program_and_get_last_line_of_output("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2");
897    if (atol(tmp) < 35000) {
898        retval++;
899        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
900    }
901    if (atol(tmp) < 66000) {
902        log_to_screen("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
903    }
904    mr_free(tmp);
905#endif
906
907    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
908        retval++;
909        log_to_screen
910            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
911        fatal_error
912            ("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. :)");
913    }
914#ifndef __FreeBSD__
915    if (run_program_and_log_output
916        ("grep ramdisk /proc/devices", FALSE)) {
917        /* Some SuSE have ramdisk as modules, so insert it first, then test again */
918        run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
919        if (run_program_and_log_output
920            ("grep ramdisk /proc/devices", FALSE)) {
921            if (!ask_me_yes_or_no
922                ("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?"))
923            {
924                //          retval++;
925                log_to_screen
926                    ("It looks as if your kernel lacks ramdisk and initrd support.");
927                log_to_screen
928                    ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
929            }
930        }
931    }
932#endif
933    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
934    retval += whine_if_not_found("mkisofs");
935    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
936        retval += whine_if_not_found("cdrecord");
937    }
938    retval += whine_if_not_found("bzip2");
939    retval += whine_if_not_found("gzip");
940    retval += whine_if_not_found("awk");
941    retval += whine_if_not_found("md5sum");
942    retval += whine_if_not_found("strings");
943    retval += whine_if_not_found("mindi");
944    retval += whine_if_not_found("buffer");
945
946    // abort if Windows partition but no ms-sys and parted
947    if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
948        log_to_screen("I think you have a Windows 9x partition.");
949        retval += whine_if_not_found("parted");
950    }
951
952    tmp = find_home_of_exe("cmp");
953    if (!tmp) {
954        mr_free(tmp);
955        tmp = find_home_of_exe("true");
956        if (!tmp) {
957            retval += whine_if_not_found("cmp");
958        } else {
959            log_to_screen("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
960            if (run_program_and_log_output("cp -f `which true` /usr/bin/cmp", 0)) {
961                mr_free(tmp);
962                fatal_error("Failed to create dummy 'cmp' file.");
963            }
964        }
965    }
966    mr_free(tmp);
967
968    run_program_and_log_output("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
969    tmp = call_program_and_get_last_line_of_output("mount | grep -E \"cdr(om|w)\"");
970    if (strcmp("", tmp)) {
971        if (strstr(tmp, "autofs")) {
972            log_to_screen
973                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
974            log_to_screen
975                ("if a CD actually is inserted. If a CD is inserted, please");
976            log_to_screen("eject it. Thank you.");
977            log_it
978                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
979        } else
980            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
981            retval++;
982            mr_free(tmp);
983            fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
984        }
985    }
986    mr_free(tmp);
987
988    run_program_and_log_output("cat /etc/fstab", 5);
989#ifdef __FreeBSD__
990    run_program_and_log_output("vinum printconfig", 5);
991#else
992    run_program_and_log_output("cat /etc/raidtab", 5);
993#endif
994
995    if (run_program_and_log_output("mindi -V", 1)) {
996        log_to_screen("Could not ascertain mindi's version number.");
997        log_to_screen
998            ("You have not installed Mondo and/or Mindi properly.");
999        log_to_screen("Please uninstall and reinstall them both.");
1000        fatal_error("Please reinstall Mondo and Mindi.");
1001    }
1002    mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1003    if (run_program_and_log_output(tmp, 5)) {
1004        mr_free(tmp);
1005        mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1006        log_to_screen(tmp);
1007        log_to_screen
1008            ("Please run that command by hand and examine /var/log/mindi.log");
1009        log_to_screen
1010            ("for more information. Perhaps your /etc/fstab file is insane.");
1011        log_to_screen
1012            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1013        retval++;
1014    }
1015    mr_free(tmp);
1016
1017    if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1018        && !does_file_exist("/etc/raidtab")) {
1019        log_to_screen
1020            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1021        create_raidtab_from_mdstat("/etc/raidtab");
1022    }
1023
1024    if (retval) {
1025        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1026    } else {
1027        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1028    }
1029    return (retval);
1030}
1031
1032/**
1033 * Retrieve the line containing @p label from the config file.
1034 * @param config_file The file to read from, usually @c mondorestore.cfg.
1035 * @param label What to read from the file.
1036 * @param value Where to put it.
1037 * @return value of the param or NULL if not found
1038 */
1039char *read_cfg_var(char *config_file, char *label)
1040{
1041    /*@ buffer ****************************************************** */
1042    char *command = NULL;
1043    char *value = NULL;
1044
1045    /*@ end vars *************************************************** */
1046
1047    assert_string_is_neither_NULL_nor_zerolength(config_file);
1048    assert_string_is_neither_NULL_nor_zerolength(label);
1049    if (!does_file_exist(config_file)) {
1050        log_to_screen("(read_cfg_var) Cannot find %s config file", config_file);
1051        return (NULL);
1052    } else {
1053        mr_asprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1054        value = call_program_and_get_last_line_of_output(command);
1055        mr_free(command);
1056
1057        log_msg(4, "Configuration item %s is %s", label, value);
1058        if (strlen(value) == 0) {
1059            return (NULL);
1060        } else {
1061            return (value);
1062        }
1063    }
1064}
1065
1066
1067
1068/**
1069 * Remount @c supermount if it was unmounted earlier.
1070 */
1071void remount_supermounts_if_necessary()
1072{
1073    if (g_remount_cdrom_at_end) {
1074        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1075    }
1076    if (g_remount_floppy_at_end) {
1077        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1078    }
1079}
1080
1081/**
1082 * Unmount @c supermount if it's mounted.
1083 */
1084void unmount_supermounts_if_necessary()
1085{
1086    if (run_program_and_log_output
1087        ("mount | grep cdrom | grep super", FALSE) == 0) {
1088        g_remount_cdrom_at_end = TRUE;
1089        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1090    }
1091    if (run_program_and_log_output
1092        ("mount | grep floppy | grep super", FALSE) == 0) {
1093        g_remount_floppy_at_end = TRUE;
1094        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1095    }
1096}
1097
1098/**
1099 * Whether we had to stop autofs (if so, restart it at end).
1100 */
1101bool g_autofs_stopped = FALSE;
1102
1103/**
1104 * Path to the autofs initscript ("" if none exists).
1105 */
1106char g_autofs_exe[MAX_STR_LEN];
1107
1108/**
1109 * Autofs initscript in Xandros Linux distribution.
1110 */
1111#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1112
1113/**
1114 * Autofs initscript in most Linux distributions.
1115 */
1116#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1117
1118/**
1119 * If autofs is mounted, stop it (restart at end).
1120 */
1121void stop_autofs_if_necessary()
1122{
1123    char *tmp = NULL;
1124
1125    g_autofs_exe[0] = '\0';
1126    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1127        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1128    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1129        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1130    }
1131
1132    if (!g_autofs_exe[0]) {
1133        log_msg(3, "No autofs detected.");
1134    } else {
1135        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1136        // FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1137        mr_asprintf(tmp, "%s stop", g_autofs_exe);
1138        if (run_program_and_log_output(tmp, 2)) {
1139            log_it("Failed to stop autofs - I assume it wasn't running");
1140        } else {
1141            g_autofs_stopped = TRUE;
1142            log_it("Stopped autofs OK");
1143        }
1144        mr_free(tmp);
1145    }
1146}
1147
1148/**
1149 * If autofs was stopped earlier, restart it.
1150 */
1151void restart_autofs_if_necessary()
1152{
1153    char *tmp = NULL;
1154
1155    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1156        log_msg(3, "No autofs detected.");
1157        return;
1158    }
1159    mr_asprintf(tmp, "%s start", g_autofs_exe);
1160    if (run_program_and_log_output(tmp, 2)) {
1161        log_it("Failed to start autofs");
1162    } else {
1163        g_autofs_stopped = FALSE;
1164        log_it("Started autofs OK");
1165    }
1166    mr_free(tmp);
1167}
1168
1169
1170/**
1171 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1172 */
1173void mount_boot_if_necessary() {
1174    char *tmp = NULL;
1175    char *command = NULL;
1176
1177    log_msg(1, "Started sub");
1178    log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1179    g_boot_mountpt[0] = '\0';
1180    log_msg(4, "Done. Great. Seeting command to something");
1181    mr_asprintf(command, "%s", "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[   ]/boot[     ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1182    log_msg(4, "Cool. Command = '%s'", command);
1183    tmp = call_program_and_get_last_line_of_output(command);
1184    mr_free(command);
1185
1186    log_msg(4, "tmp = '%s'", tmp);
1187    log_it("/boot is at %s according to /etc/fstab", tmp);
1188    mr_asprintf(command, "mount | grep -Ew '/boot'");
1189    mr_free(tmp);
1190    tmp = call_program_and_get_last_line_of_output(command);
1191    mr_free(command);
1192
1193    if (!strcmp(tmp,"")) {
1194        if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1195            if (!run_program_and_log_output("mount /boot", 5)) {
1196                strcpy(g_boot_mountpt, "/boot");
1197                log_msg(1, "Mounted /boot");
1198            } else {
1199                log_it("...ignored cos it's a label or uuid :-)");
1200            }
1201        } else {
1202            mr_asprintf(command, "mount | grep -E '^%s'", tmp);
1203            log_msg(3, "command = %s", command);
1204            if (run_program_and_log_output(command, 5)) {
1205                strcpy(g_boot_mountpt, tmp);
1206                mr_free(tmp);
1207                log_it("%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1208
1209                mr_asprintf(tmp, "mount %s", g_boot_mountpt);
1210                if (run_program_and_log_output(tmp, 5)) {
1211                    g_boot_mountpt[0] = '\0';
1212                    log_msg(1, "Plan B");
1213                    if (!run_program_and_log_output("mount /boot", 5)) {
1214                        strcpy(g_boot_mountpt, "/boot");
1215                        log_msg(1, "Plan B worked");
1216                    } else {
1217                        log_msg(1,
1218                            "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1219                    }
1220                }
1221            }
1222            mr_free(command);
1223        }
1224    }
1225    mr_free(tmp);
1226    log_msg(1, "Ended sub");
1227}
1228
1229
1230/**
1231 * If we mounted /boot earlier, unmount it.
1232 */
1233void unmount_boot_if_necessary()
1234{
1235    char *tmp = NULL;
1236
1237    log_msg(3, "starting");
1238    if (g_boot_mountpt[0]) {
1239        mr_asprintf(tmp, "umount %s", g_boot_mountpt);
1240        if (run_program_and_log_output(tmp, 5)) {
1241            log_it("WARNING - unable to unmount /boot");
1242        }
1243        mr_free(tmp);
1244    }
1245    log_msg(3, "leaving");
1246}
1247
1248
1249
1250/**
1251 * Write a line to a configuration file. Writes a line of the form,
1252 * @c label @c value.
1253 * @param config_file The file to write to. Usually @c mondorestore.cfg.
1254 * @param label What to call this bit of data you're writing.
1255 * @param value The bit of data you're writing.
1256 * @return 0 for success, 1 for failure.
1257 */
1258int write_cfg_var(char *config_file, char *label, char *value)
1259{
1260    /*@ buffers ***************************************************** */
1261    char *command = NULL;
1262    char *tempfile = NULL;
1263
1264
1265    /*@ end vars *************************************************** */
1266    assert_string_is_neither_NULL_nor_zerolength(config_file);
1267    assert_string_is_neither_NULL_nor_zerolength(label);
1268    assert(value != NULL);
1269    if (!does_file_exist(config_file)) {
1270        log_to_screen("(write_cfg_file) Cannot find %s config file", config_file);
1271        return (1);
1272    }
1273    mr_asprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1274    if (does_file_exist(config_file)) {
1275        mr_asprintf(command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1276        paranoid_system(command);
1277        mr_free(command);
1278    }
1279    mr_asprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1280    paranoid_system(command);
1281    mr_free(command);
1282
1283    mr_asprintf(command, "mv -f %s %s", tempfile, config_file);
1284    paranoid_system(command);
1285    mr_free(command);
1286    unlink(tempfile);
1287    mr_free(tempfile);
1288    return (0);
1289}
1290
1291
1292/**
1293 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1294 * information to the logfile.
1295 */
1296void standard_log_debug_msg(int debug_level, const char *szFile, const char *szFunction, int nLine, const char *fmt, ...) {
1297
1298    va_list args;
1299    static int depth = 0;
1300    FILE *fout;
1301
1302    if (depth > 5) {
1303        depth--;
1304        return;
1305    }
1306    depth++;
1307
1308    if (debug_level <= g_loglevel) {
1309        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1310            return;
1311        }
1312
1313        // add tabs to distinguish log levels
1314        if (debug_level > 0) {
1315            fprintf(fout, "DBG%d: ", debug_level);
1316            if (getpid() == g_main_pid)
1317                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1318            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1319                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1320            else
1321                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1322        } else {
1323            fprintf(fout, "INFO: ");
1324        }
1325        va_start(args, fmt);
1326        vfprintf(fout, fmt, args);
1327        va_end(args);
1328
1329        fprintf(fout, "\n");
1330        paranoid_fclose(fout);
1331    }
1332    depth--;
1333}
1334
1335/**
1336 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1337 */
1338void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1339                       ...) = standard_log_debug_msg;
1340
1341
1342/**
1343 * Allocate or free important globals, depending on @p mal.
1344 * @param mal If TRUE, malloc; if FALSE, free.
1345 */
1346void do_libmondo_global_strings_thing(int mal)
1347{
1348    if (mal) {
1349        malloc_string(g_boot_mountpt);
1350        malloc_string(g_mondo_home);
1351        malloc_string(g_magicdev_command);
1352    } else {
1353        paranoid_free(g_boot_mountpt);
1354        paranoid_free(g_mondo_home);
1355        paranoid_free(g_magicdev_command);
1356
1357        mr_free(g_serial_string);
1358    }
1359}
1360
1361/**
1362 * Allocate important globals.
1363 * @see do_libmondo_global_strings_thing
1364 */
1365void malloc_libmondo_global_strings(void)
1366{
1367    do_libmondo_global_strings_thing(1);
1368}
1369
1370/**
1371 * Free important globals.
1372 * @see do_libmondo_global_strings_thing
1373 */
1374void free_libmondo_global_strings(void)
1375{
1376    do_libmondo_global_strings_thing(0);
1377}
1378
1379
1380
1381/**
1382 * Stop @c magicdev if it's running.
1383 * The command used to start it is saved in @p g_magicdev_command.
1384 */
1385void stop_magicdev_if_necessary() {
1386
1387    char *tmp = NULL;
1388
1389    tmp = call_program_and_get_last_line_of_output("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99");
1390
1391    strcpy(g_magicdev_command, tmp);
1392    mr_free(tmp);
1393
1394    if (g_magicdev_command[0]) {
1395        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1396        paranoid_system("killall magicdev");
1397    }
1398}
1399
1400
1401/**
1402 * Restart magicdev if it was stopped.
1403 */
1404void restart_magicdev_if_necessary()
1405{
1406    char *tmp = NULL;
1407
1408    if (g_magicdev_command && g_magicdev_command[0]) {
1409        mr_asprintf(tmp, "%s &", g_magicdev_command);
1410        paranoid_system(tmp);
1411        mr_free(tmp);
1412    }
1413}
1414
1415/* @} - end of utilityGroup */
Note: See TracBrowser for help on using the repository browser.