source: trunk/mondo/mondo/common/libmondo-tools.c @ 164

Last change on this file since 164 was 164, checked in by andree, 14 years ago

Make it so that the -B option script does run even if specified in
conjunction with the -m option (manual CD tray).

Based on a patch by Efraim Feinstein - thank you!

See also Debian bug #278000.

  • Property svn:keywords set to Id
File size: 39.2 KB
Line 
1/* $Id: libmondo-tools.c 164 2005-12-08 11:34:37Z andree $
2misc tools
3*/
4
5/**
6 * @file
7 * Miscellaneous tools that didn't really fit anywhere else.
8 */
9
10#include "my-stuff.h"
11#include "mondostructures.h"
12#include "lib-common-externs.h"
13#include "libmondo-tools.h"
14#include "libmondo-gui-EXT.h"
15#include "libmondo-files-EXT.h"
16#include "libmondo-fork-EXT.h"
17#include "libmondo-raid-EXT.h"
18#include <sys/socket.h>
19#include <netdb.h>
20#include <netinet/in.h>
21#ifndef S_SPLINT_S
22#include <arpa/inet.h>
23#endif
24
25/*@unused@*/
26//static char cvsid[] = "$Id: libmondo-tools.c 164 2005-12-08 11:34:37Z andree $";
27
28extern int g_tape_buffer_size_MB;
29extern char *g_erase_tmpdir_and_scratchdir;
30extern char *g_serial_string;
31extern bool g_text_mode;
32extern int g_currentY;
33extern int g_current_media_number;
34
35/**
36 * @addtogroup globalGroup
37 * @{
38 */
39bool g_remount_cdrom_at_end,    ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
40 g_remount_floppy_at_end;       ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
41bool g_cd_recovery;             ///< TRUE if we're making an "autonuke" backup.
42double g_kernel_version;
43
44/**
45 * The place where /boot is mounted. - Used locally only
46 */
47static char *g_boot_mountpt = NULL;
48
49/**
50 * The location of Mondo's home directory.
51 */
52char *g_mondo_home = NULL;
53
54/**
55 * The serial string (used to differentiate between backups) of the current backup.
56 */
57char *g_serial_string = NULL;
58
59/**
60 * The location where tmpfs is mounted, or "" if it's not mounted.
61 */
62char *g_tmpfs_mountpt = NULL;
63char *g_magicdev_command = NULL;
64
65/**
66 * The default maximum level to log messages at or below.
67 */
68int g_loglevel = DEFAULT_DEBUG_LEVEL;
69
70/* @} - end of globalGroup */
71
72
73extern pid_t g_buffer_pid;
74extern pid_t g_main_pid;
75
76extern t_bkptype g_backup_media_type;
77
78extern bool am_I_in_disaster_recovery_mode(void);
79
80
81/**
82 * @addtogroup utilityGroup
83 * @{
84 */
85/**
86 * Assertion handler. Prints a friendly message to the user,
87 * offering to ignore all, dump core, break to debugger,
88 * exit, or ignore. Intended to be used with an assert() macro.
89 *
90 * @param file The file in which the assertion triggered.
91 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
92 * @param line The line number of the assert() statement.
93 * @param exp The expression that failed (as a string).
94 */
95void _mondo_assert_fail(const char *file,
96                        const char *function, int line, const char *exp)
97{
98    static int ignoring_assertions = 0;
99    bool is_valid = TRUE;
100
101    log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
102           function);
103    if (ignoring_assertions) {
104        log_it("Well, the user doesn't care...");
105        return;
106    }
107#ifndef _XWIN
108    if (!g_text_mode)
109        newtSuspend();
110#endif
111    printf("ASSERTION FAILED: `%s'\n", exp);
112    printf("\tat %s:%d in %s\n\n", file, line, function);
113    printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
114    do {
115        is_valid = TRUE;
116        switch (toupper(getchar())) {
117        case 'A':               // ignore (A)ll
118            ignoring_assertions = 1;
119            break;
120        case 'B':               // a(B)ort
121            signal(SIGABRT, SIG_DFL);   /* prevent SIGABRT handler from running */
122            raise(SIGABRT);
123            break;              /* "can't get here" */
124        case 'D':               // (D)ebug, aka asm("int 3")
125#ifdef __IA32__
126            __asm__ __volatile__("int $3"); // break to debugger
127#endif
128            break;
129        case 'E':               // (E)xit
130            fatal_error("Failed assertion -- see above for details");
131            break;              /* "can't get here" */
132        case 'I':               // (I)gnore
133            break;
134            /* These next two work as follows:
135               the `default' catches the user's invalid choice and says so;
136               the '\n' catches the newline on the end and prints the prompt again.
137             */
138        case '\n':
139            printf
140                ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
141            break;
142        default:
143            is_valid = FALSE;
144            printf("Invalid choice.\n");
145            break;
146        }
147    } while (!is_valid);
148
149    if (ignoring_assertions) {
150        log_it("Ignoring ALL assertions from now on.");
151    } else {
152        log_it("Ignoring assertion: %s", exp);
153    }
154
155    getchar();                  // skip \n
156
157#ifndef _XWIN
158    if (!g_text_mode)
159        newtResume();
160#endif
161}
162
163/**
164 * Clean's up users' KDE desktops.
165 * @bug Details about this function are unknown.
166 */
167void clean_up_KDE_desktop_if_necessary(void)
168{
169    char *tmp;
170
171    asprintf(&tmp,
172             "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
173file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
174cat $file.old | awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
175else { print $0;};}' > $file ; fi ; done");
176    run_program_and_log_output(tmp, 5);
177    paranoid_free(tmp);
178}
179
180
181/**
182 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
183 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
184 *
185 * @param home_sz String to store the home directory ("" if it could not be found).
186 * @return 0 for success, nonzero for failure.
187 */
188char *find_and_store_mondoarchives_home()
189{
190    char *home_sz = NULL;
191
192    asprintf(&home_sz,
193             call_program_and_get_last_line_of_output
194             ("find /usr/lib/ /usr/local/ /usr/share/ /usr/local/share/ /opt/ /ramdisk/usr/share/ -type d -maxdepth 2 -name include -prune -o -type d -maxdepth 2 -path '*/mondo/restore-scripts' -printf '%h\n' 2> /dev/null"));
195
196    if (home_sz[0] == '\0') {
197        paranoid_free(home_sz);
198        asprintf(&home_sz,
199                 call_program_and_get_last_line_of_output
200                 ("find /usr -type d -path '*/mondo/restore-scripts' -follow -maxdepth 3 -printf '%h\n' 2> /dev/null"));
201    }
202    if (home_sz[0] == '\0') {
203        paranoid_free(home_sz);
204        home_sz = NULL;
205    } else {
206        log_it("mondoarchive home found at %s", home_sz);
207    }
208    return (home_sz);
209}
210
211
212char *get_architecture()
213{
214#ifdef __IA32__
215    return ("i386");
216#endif
217#ifdef __X86_64__
218    return ("x86-64");
219#endif
220#ifdef __IA64__
221    return ("ia64");
222#endif
223    return ("unknown");
224}
225
226
227
228double get_kernel_version()
229{
230    char *p, *tmp;
231    double d;
232#ifdef __FreeBSD__
233    // JOSH - FIXME :)
234    d = 5.2;                    // :-)
235#else
236    asprintf(&tmp, call_program_and_get_last_line_of_output("uname -r"));
237    p = strchr(tmp, '.');
238    if (p) {
239        p = strchr(++p, '.');
240        if (p) {
241            while (*p) {
242                *p = *(p + 1);
243                p++;
244            }
245        }
246    }
247//  log_msg(1, "tmp = '%s'", tmp);
248    d = atof(tmp);
249#endif
250    log_msg(1, "g_kernel_version = %f", d);
251    return (d);
252}
253
254
255
256
257
258/**
259 * Get the current time.
260 * @return number of seconds since the epoch.
261 */
262long get_time()
263{
264    return (long) time((void *) 0);
265}
266
267
268
269
270
271
272
273/**
274 * Initialize a RAID volume structure, setting fields to zero. The
275 * actual hard drive is unaffected.
276 *
277 * @param raidrec The RAID volume structure to initialize.
278 * @note This function is system dependent.
279 */
280#ifdef __FreeBSD__
281void initialize_raidrec(struct vinum_volume *raidrec)
282{
283    int i, j;
284    raidrec->volname[0] = '\0';
285    raidrec->plexes = 0;
286    for (i = 0; i < 9; ++i) {
287        raidrec->plex[i].raidlevel = -1;
288        raidrec->plex[i].stripesize = 0;
289        raidrec->plex[i].subdisks = 0;
290        for (j = 0; j < 9; ++j) {
291            strcpy(raidrec->plex[i].sd[j].which_device, "");
292        }
293    }
294}
295#else
296void initialize_raidrec(struct raid_device_record *raidrec)
297{
298    assert(raidrec != NULL);
299    raidrec->raid_device[0] = '\0';
300    raidrec->raid_level = 0;
301    raidrec->chunk_size = 4;
302    raidrec->persistent_superblock = 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 dos, @c fat, @c vfat, and @c osst 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 dos fat vfat loop &> /dev/null");
326#endif
327}
328
329
330/**
331 * Finish configuring the backup information structure. Call this function
332 * to set the parameters that depend on those that can be given on the command
333 * line.
334 *
335 * @param bkpinfo The backup information structure. Fields modified/used:
336 * - Used: @c bkpinfo->backup_data
337 * - Used: @c bkpinfo->backup_media_type
338 * - Used: @c bkpinfo->cdrw_speed
339 * - Used: @c bkpinfo->compression_level
340 * - Used: @c bkpinfo->include_paths
341 * - Used: @c bkpinfo->prefix
342 * - Used: @c bkpinfo->isodir
343 * - Used: @c bkpinfo->manual_cd_tray
344 * - Used: @c bkpinfo->make_cd_use_lilo
345 * - Used: @c bkpinfo->media_device
346 * - Used: @c bkpinfo->nfs_mount
347 * - Used: @c bkpinfo->nonbootable_backup
348 * - Used: @c bkpinfo->scratchdir
349 * - Used: @c bkpinfo->tmpdir
350 * - Used: @c bkpinfo->use_lzo
351 * - Modified: @c bkpinfo->call_before_iso
352 * - Modified: @c bkpinfo->call_make_iso
353 * - Modified: @c bkpinfo->optimal_set_size
354 * - Modified: @c bkpinfo->zip_exe
355 * - Modified: @c bkpinfo->zip_suffix
356 *
357 * @return number of errors, or 0 for success.
358 * @note Also creates directories that are specified in the @c bkpinfo structure but
359 * do not exist.
360 */
361int post_param_configuration(struct s_bkpinfo *bkpinfo)
362{
363    char *extra_cdrom_params = NULL;
364    char *mondo_mkisofs_sz = NULL;
365    char *command;
366    char *hostname, *ip_address;
367    int retval = 0;
368    long avm = 0;
369    char *colon;
370    char *cdr_exe;
371    char *tmp;
372    char *tmp1;
373    char call_before_iso_user[MAX_STR_LEN] = "\0";
374    int rdsiz_MB;
375    char *iso_path;
376
377    assert(bkpinfo != NULL);
378    bkpinfo->optimal_set_size =
379        (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 4 : 8) *
380        1024;
381
382    log_msg(1, "Foo");
383    if (bkpinfo->backup_media_type == tape) {
384        log_msg(1, "Bar");
385        asprintf(&tmp, "mt -f %s status", bkpinfo->media_device);
386        log_msg(1, "tmp = '%s'", tmp);
387        if (run_program_and_log_output(tmp, 3)) {
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        paranoid_free(tmp);
392    }
393    make_hole_for_dir(bkpinfo->scratchdir);
394    make_hole_for_dir(bkpinfo->tmpdir);
395    if (bkpinfo->backup_media_type == iso)
396        make_hole_for_dir(bkpinfo->isodir);
397
398    run_program_and_log_output("uname -a", 5);
399    run_program_and_log_output("cat /etc/*issue*", 5);
400    asprintf(&g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
401    asprintf(&command, "mkdir -p %s", g_tmpfs_mountpt);
402    paranoid_system(command);
403    paranoid_free(command);
404    rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
405#ifdef __FreeBSD__
406    asprintf(&tmp,
407             call_program_and_get_last_line_of_output
408             ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
409    avm += atol(tmp);
410    paranoid_free(tmp);
411    asprintf(&tmp,
412             call_program_and_get_last_line_of_output
413             ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
414    avm += atol(tmp);
415    paranoid_free(tmp);
416    asprintf(&command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
417             g_tmpfs_mountpt);
418#else
419    asprintf(&tmp,
420             call_program_and_get_last_line_of_output
421             ("free | grep \":\" | tr -s ' ' '\t' | cut -f2 | head -n1"));
422    avm += atol(tmp);
423    paranoid_free(tmp);
424    asprintf(&command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
425             g_tmpfs_mountpt, rdsiz_MB, 'm');
426    run_program_and_log_output("cat /proc/cpuinfo", 5);
427    /* BERLIOS: rpm is not necessarily there ! */
428    run_program_and_log_output
429        ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
430         5);
431#endif
432    if (avm / 1024 > rdsiz_MB * 3) {
433        if (run_program_and_log_output(command, 5)) {
434            g_tmpfs_mountpt[0] = '\0';
435            log_it("Failed to mount tmpfs");
436        } else {
437            log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
438        }
439    } else {
440        g_tmpfs_mountpt[0] = '\0';
441        log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
442    }
443    paranoid_free(command);
444
445    if (bkpinfo->use_lzo) {
446        strcpy(bkpinfo->zip_exe, "lzop");
447        strcpy(bkpinfo->zip_suffix, "lzo");
448    } else if (bkpinfo->compression_level != 0) {
449        strcpy(bkpinfo->zip_exe, "bzip2");
450        strcpy(bkpinfo->zip_suffix, "bz2");
451    } else {
452        bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
453    }
454
455// DVD
456
457    if (bkpinfo->backup_media_type == dvd) {
458        if (!(find_home_of_exe("growisofs"))) {
459            fatal_error("Please install growisofs.");
460        }
461        if (bkpinfo->nonbootable_backup) {
462            asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
463        } else if
464#ifdef __FreeBSD__
465            (TRUE)
466#else
467            (bkpinfo->make_cd_use_lilo)
468#endif
469#ifdef __IA64__
470    {
471        asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
472    }
473#else
474    {
475        asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
476    }
477#endif
478        else
479        {
480            asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
481        }
482        if (bkpinfo->manual_cd_tray) {
483            fatal_error("Manual CD tray + DVD not supported yet.");
484            // -m isn't supported by growisofs, BTW...
485        } else {
486            sprintf(bkpinfo->call_make_iso,
487                    "%s %s -Z %s . 2>> _ERR_",
488                    mondo_mkisofs_sz, "", bkpinfo->media_device);
489        }
490        paranoid_free(mondo_mkisofs_sz);
491
492        if (getenv("SUDO_COMMAND")) {
493            fatal_error
494                ("Can't write DVDs as sudo because growisofs doesn't support this - please see the growisofs manpage for details.");
495        }
496        log_msg(2, "call_make_iso (DVD res) is ... %s",
497                bkpinfo->call_make_iso);
498    }                           // end of DVD code
499
500// CD-R or CD-RW
501    if (bkpinfo->backup_media_type == cdrw
502        || bkpinfo->backup_media_type == cdr) {
503        if (!bkpinfo->manual_cd_tray) {
504            asprintf(&extra_cdrom_params, "-waiti ");
505        }
506        if (bkpinfo->backup_media_type == cdrw) {
507            if (extra_cdrom_params != NULL) {
508                asprintf(&tmp, extra_cdrom_params);
509                paranoid_free(extra_cdrom_params);
510                asprintf(&extra_cdrom_params, "%s blank=fast ", tmp);
511            } else {
512                asprintf(&extra_cdrom_params, "blank=fast ");
513            }
514        }
515        if (find_home_of_exe("cdrecord")) {
516            asprintf(&cdr_exe, "cdrecord");
517        } else if (find_home_of_exe("dvdrecord")) {
518            asprintf(&cdr_exe, "dvdrecord");
519        } else {
520            fatal_error("Please install either cdrecord or dvdrecord.");
521        }
522        if (bkpinfo->nonbootable_backup) {
523            asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
524        } else if
525#ifdef __FreeBSD__
526            (TRUE)
527#else
528            (bkpinfo->make_cd_use_lilo)
529#endif
530#ifdef __IA64__
531    {
532        asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
533    }
534#else
535    {
536        asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
537    }
538#endif
539        else
540        {
541            asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
542        }
543        if (bkpinfo->manual_cd_tray) {
544            if (bkpinfo->call_before_iso[0] == '\0') {
545            sprintf(bkpinfo->call_before_iso,
546                        "%s -o %s/temporary.iso . 2>> _ERR_",
547                        mondo_mkisofs_sz, bkpinfo->tmpdir);
548                } else {
549                strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
550                sprintf (bkpinfo->call_before_iso,
551                                    "( %s -o %s/temporary.iso . 2>> _ERR_ ; %s )",
552                        mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
553            }
554            log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
555            sprintf(bkpinfo->call_make_iso,
556                    "%s %s -v %s fs=4m dev=%s speed=%d %s/temporary.iso",
557                    cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
558                    extra_cdrom_params, bkpinfo->media_device,
559                    bkpinfo->cdrw_speed, bkpinfo->tmpdir);
560        } else {
561            sprintf(bkpinfo->call_make_iso,
562                    "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
563                    mondo_mkisofs_sz, cdr_exe,
564                    (bkpinfo->please_dont_eject) ? " " : "-eject",
565                    extra_cdrom_params, bkpinfo->media_device,
566                    bkpinfo->cdrw_speed);
567        }
568        paranoid_free(mondo_mkisofs_sz);
569        paranoid_free(cdr_exe);
570        paranoid_free(extra_cdrom_params);
571    }                           // end of CD code
572
573    if (bkpinfo->backup_media_type == iso) {
574
575/* Patch by Conor Daly <conor.daly@met.ie>
576 * 23-june-2004
577 * Break up isodir into iso_mnt and iso_path
578 * These will be used along with iso-dev at restore time
579 * to locate the ISOs where ever they're mounted
580 */
581
582        log_it("isodir = %s", bkpinfo->isodir);
583        asprintf(&command, "df %s | tail -n1 | cut -d' ' -f1",
584                 bkpinfo->isodir);
585        log_it("command = %s", command);
586        asprintf(&tmp, call_program_and_get_last_line_of_output(command));
587        paranoid_free(command);
588        log_it("res of it = %s", tmp);
589        asprintf(&tmp1, "%s/ISO-DEV", bkpinfo->tmpdir);
590        write_one_liner_data_file(tmp1, tmp);
591        paranoid_free(tmp1);
592
593        asprintf(&command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
594                 tmp);
595        paranoid_free(tmp);
596        log_it("command = %s", command);
597        asprintf(&tmp, call_program_and_get_last_line_of_output(command));
598        paranoid_free(command);
599        log_it("res of it = %s", tmp);
600
601        asprintf(&tmp1, "%s/ISO-MNT", bkpinfo->tmpdir);
602        write_one_liner_data_file(tmp1, tmp);
603        paranoid_free(tmp1);
604
605        log_it("isomnt: %s, %d", tmp, strlen(tmp));
606        if (strlen(bkpinfo->isodir) < strlen(tmp)) {
607            asprintf(&iso_path, "");
608        } else {
609            asprintf(&iso_path, "%s", bkpinfo->isodir + strlen(tmp));
610        }
611        paranoid_free(tmp);
612
613        asprintf(&tmp, "%s/ISODIR", bkpinfo->tmpdir);
614        write_one_liner_data_file(tmp, iso_path);
615        paranoid_free(tmp);
616        log_it("isodir: %s", iso_path);
617        paranoid_free(iso_path);
618        asprintf(&tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
619        write_one_liner_data_file(tmp, bkpinfo->prefix);
620        log_it("iso-prefix: %s",  bkpinfo->prefix);
621        paranoid_free(tmp);
622/* End patch */
623    }                           // end of iso code
624
625    if (bkpinfo->backup_media_type == nfs) {
626        asprintf(&hostname, bkpinfo->nfs_mount);
627        colon = strchr(hostname, ':');
628        if (!colon) {
629            log_it("nfs mount doesn't have a colon in it");
630            retval++;
631        } else {
632            struct hostent *hent;
633
634            *colon = '\0';
635            hent = gethostbyname(hostname);
636            if (!hent) {
637                log_it("Can't resolve NFS mount (%s): %s", hostname,
638                       hstrerror(h_errno));
639                retval++;
640            } else {
641                asprintf(&ip_address, "%s%s", inet_ntoa((struct in_addr)
642                                                        *((struct in_addr
643                                                           *) hent->
644                                                          h_addr)),
645                         strchr(bkpinfo->nfs_mount, ':'));
646                strcpy(bkpinfo->nfs_mount, ip_address);
647                paranoid_free(ip_address);
648            }
649        }
650        store_nfs_config(bkpinfo);
651        paranoid_free(hostname);
652    }
653
654    log_it("Finished processing incoming params");
655    if (retval) {
656        fprintf(stderr, "Type 'man mondoarchive' for help.\n");
657    }
658    asprintf(&tmp, "%s", MONDO_TMPISOS);
659    if (does_file_exist(tmp)) {
660        unlink(tmp);
661    }
662    paranoid_free(tmp);
663
664    if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
665        log_it("tmpdir or scratchdir are blank/missing");
666        retval++;
667    }
668    if (bkpinfo->include_paths[0] == '\0') {
669        //      fatal_error ("Why no backup path?");
670        strcpy(bkpinfo->include_paths, "/");
671    }
672    chmod(bkpinfo->scratchdir, 0700);
673    chmod(bkpinfo->tmpdir, 0700);
674    g_backup_media_type = bkpinfo->backup_media_type;
675    return (retval);
676}
677
678
679
680/**
681 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
682 * Seeds the random-number generator, loads important modules, checks the sanity
683 * of the user's Linux distribution, and deletes logfile.
684 * @param bkpinfo The backup information structure. Will be initialized.
685 * @return number of errors (0 for success)
686 */
687int pre_param_configuration(struct s_bkpinfo *bkpinfo)
688{
689    int res = 0;
690
691    make_hole_for_dir(MNT_CDROM);
692    assert(bkpinfo != NULL);
693    srandom((unsigned long) (time(NULL)));
694    insmod_crucial_modules();
695    reset_bkpinfo(bkpinfo);     // also sets defaults ('/'=backup path, 3=compression level)
696    if (bkpinfo->disaster_recovery) {
697        if (!does_nonMS_partition_exist()) {
698            fatal_error
699                ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
700        }
701    }
702
703    unlink(MONDO_TRACEFILE);
704    run_program_and_log_output("rm -Rf /tmp/changed.files*", FALSE);
705    if ((g_mondo_home = find_and_store_mondoarchives_home()) == NULL) {
706        fprintf(stderr,
707                "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");
708        res++;
709        return (res);
710    }
711    res += some_basic_system_sanity_checks();
712    if (res) {
713        log_it("Your distribution did not pass Mondo's sanity test.");
714    }
715    g_current_media_number = 1;
716    bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
717    return (res);
718}
719
720
721
722
723/**
724 * Reset all fields of the backup information structure to a sensible default.
725 * @param bkpinfo The @c bkpinfo to reset.
726 */
727void reset_bkpinfo(struct s_bkpinfo *bkpinfo)
728{
729    int i;
730
731    log_msg(1, "Hi");
732    assert(bkpinfo != NULL);
733    memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
734    bkpinfo->manual_cd_tray = FALSE;
735    bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
736    bkpinfo->media_device[0] = '\0';
737    for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
738        bkpinfo->media_size[i] = -1;
739    }
740    bkpinfo->boot_loader = '\0';
741    bkpinfo->boot_device[0] = '\0';
742    bkpinfo->zip_exe[0] = '\0';
743    bkpinfo->zip_suffix[0] = '\0';
744    bkpinfo->restore_path[0] = '\0';
745    bkpinfo->use_lzo = FALSE;
746    bkpinfo->do_not_compress_these[0] = '\0';
747    bkpinfo->verify_data = FALSE;
748    bkpinfo->backup_data = FALSE;
749    bkpinfo->restore_data = FALSE;
750    bkpinfo->disaster_recovery =
751        (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
752    if (bkpinfo->disaster_recovery) {
753        strcpy(bkpinfo->isodir, "/");
754    } else {
755        strcpy(bkpinfo->isodir, "/root/images/mondo");
756    }
757    strcpy(bkpinfo->prefix, STD_PREFIX);
758
759    bkpinfo->scratchdir[0] = '\0';
760    bkpinfo->make_filelist = TRUE;  // unless -J supplied to mondoarchive
761    sprintf(bkpinfo->tmpdir, "/tmp/tmpfs/mondo.tmp.%d", (int) (random() % 32768));  // for mondorestore
762    bkpinfo->optimal_set_size = 0;
763    bkpinfo->backup_media_type = none;
764    strcpy(bkpinfo->include_paths, "/");
765    bkpinfo->exclude_paths[0] = '\0';
766    bkpinfo->call_before_iso[0] = '\0';
767    bkpinfo->call_make_iso[0] = '\0';
768    bkpinfo->call_burn_iso[0] = '\0';
769    bkpinfo->call_after_iso[0] = '\0';
770    bkpinfo->image_devs[0] = '\0';
771    bkpinfo->postnuke_tarball[0] = '\0';
772    bkpinfo->kernel_path[0] = '\0';
773    bkpinfo->nfs_mount[0] = '\0';
774    bkpinfo->nfs_remote_dir[0] = '\0';
775    bkpinfo->wipe_media_first = FALSE;
776    bkpinfo->differential = FALSE;
777    bkpinfo->cdrw_speed = 0;
778// patch by Herman Kuster 
779    bkpinfo->differential = 0;
780// patch end
781    bkpinfo->compression_level = 3;
782}
783
784
785
786
787/**
788 * Get the remaining free space (in MB) on @p partition.
789 * @param partition The partition to check free space on (either a device or a mountpoint).
790 * @return The free space on @p partition, in MB.
791 */
792long free_space_on_given_partition(char *partition)
793{
794    char *command, *out_sz;
795    long res;
796
797    assert_string_is_neither_NULL_nor_zerolength(partition);
798
799    asprintf(&command, "df -m %s &> /dev/null", partition);
800    if (system(command)) {
801        return (-1);
802    }                           // partition does not exist
803    paranoid_free(command);
804
805    asprintf(&command, "df -m %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
806             partition);
807    asprintf(&out_sz, call_program_and_get_last_line_of_output(command));
808    paranoid_free(command);
809    if (strlen(out_sz) == 0) {
810        return (-1);
811    }                           // error within df, probably
812    res = atol(out_sz);
813    paranoid_free(out_sz);
814    return (res);
815}
816
817
818
819/**
820 * Check the user's system for sanity. Checks performed:
821 * - make sure user has enough RAM (32mb required, 64mb recommended)
822 * - make sure user has enough free space in @c /
823 * - check kernel for ramdisk support
824 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
825 * - make sure CD-ROM is unmounted
826 * - make sure /etc/modules.conf exists
827 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
828 *
829 * @return number of problems with the user's setup (0 for success)
830 */
831int some_basic_system_sanity_checks()
832{
833
834    /*@ buffers ************ */
835    char *tmp;
836
837    /*@ int's *************** */
838    int retval = 0;
839    long Lres;
840
841
842    mvaddstr_and_log_it(g_currentY, 0,
843                        "Checking sanity of your Linux distribution");
844#ifndef __FreeBSD__
845    if (system("which mkfs.vfat &> /dev/null")
846        && !system("which mkfs.msdos &> /dev/null")) {
847        log_it
848            ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
849        run_program_and_log_output
850            ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
851    }
852    asprintf(&tmp,
853             call_program_and_get_last_line_of_output
854             ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
855    if (atol(tmp) < 35000) {
856        retval++;
857        log_to_screen("You must have at least 32MB of RAM to use Mondo.");
858    }
859    if (atol(tmp) < 66000) {
860        log_to_screen
861            ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
862    }
863    paranoid_free(tmp);
864#endif
865
866    if ((Lres = free_space_on_given_partition("/root")) == -1) {
867        Lres = free_space_on_given_partition("/");
868    }
869    log_it("Free space on given partition = %ld MB", Lres);
870
871    if (Lres < 50) {
872        run_program_and_log_output
873            ("rm -Rf /root/images/mindi; mkdir -p /home/root/images/mindi; mkdir -p /root/images; ln -sf /home/root/images/mindi /root/images/mindi",
874             3);
875        //      fatal_error("Your / (or /root) partition has <50MB free. Please adjust your partition table to something saner.");
876    }
877
878    if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
879        retval++;
880        log_to_screen
881            ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
882        fatal_error
883            ("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. :)");
884    }
885#ifndef __FreeBSD__
886    if (run_program_and_log_output
887        ("cat /proc/devices | grep ramdisk", FALSE)) {
888        if (!ask_me_yes_or_no
889            ("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?"))
890        {
891            //          retval++;
892            log_to_screen
893                ("It looks as if your kernel lacks ramdisk and initrd support.");
894            log_to_screen
895                ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
896        }
897    }
898#endif
899    retval += whine_if_not_found(MKE2FS_OR_NEWFS);
900    retval += whine_if_not_found("mkisofs");
901    if (system("which dvdrecord > /dev/null 2> /dev/null")) {
902        retval += whine_if_not_found("cdrecord");
903    }
904    retval += whine_if_not_found("bzip2");
905    retval += whine_if_not_found("awk");
906    retval += whine_if_not_found("md5sum");
907    retval += whine_if_not_found("strings");
908    retval += whine_if_not_found("mindi");
909    retval += whine_if_not_found("buffer");
910
911    // abort if Windows partition but no ms-sys and parted
912    if (!run_program_and_log_output
913        ("mount | grep -w vfat | grep -v /dev/fd | grep -v nexdisk", 0)
914        ||
915        !run_program_and_log_output
916        ("mount | grep -w dos | grep -v /dev/fd | grep -v nexdisk", 0)) {
917        log_to_screen("I think you have a Windows 9x partition.");
918        retval += whine_if_not_found("parted");
919#ifndef __IA64__
920        /* IA64 always has one vfat partition for EFI even without Windows */
921        // retval +=
922        if (!find_home_of_exe("ms-sys")) {
923            log_to_screen("Please install ms-sys just in case.");
924        }
925#endif
926    }
927
928    if (!find_home_of_exe("cmp")) {
929        if (!find_home_of_exe("true")) {
930            whine_if_not_found("cmp");
931        } else {
932            log_to_screen
933                ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
934            if (run_program_and_log_output
935                ("cp -f `which true` /usr/bin/cmp", 0)) {
936                fatal_error("Failed to create dummy 'cmp' file.");
937            }
938        }
939    }
940    run_program_and_log_output
941        ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
942    asprintf(&tmp,
943             call_program_and_get_last_line_of_output
944             ("mount | grep -E \"cdr(om|w)\""));
945    if (strcmp("", tmp)) {
946        if (strstr(tmp, "autofs")) {
947            log_to_screen
948                ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
949            log_to_screen
950                ("if a CD actually is inserted. If a CD is inserted, please");
951            log_to_screen("eject it. Thank you.");
952            log_it
953                ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
954        } else
955            if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
956            retval++;
957            fatal_error
958                ("Your CD-ROM drive is mounted. Please unmount it.");
959        }
960    }
961    paranoid_free(tmp);
962#ifndef __FreeBSD__
963    if (!does_file_exist("/etc/modules.conf")) {
964        if (does_file_exist("/etc/conf.modules")) {
965            log_it("Linking /etc/modules.conf to /etc/conf.modules");
966            run_program_and_log_output
967                ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
968        } else if (does_file_exist("/etc/modprobe.d")) {
969            log_it
970                ("Directory /etc/modprobe.d found. mindi will use its contents.");
971        } else if (does_file_exist("/etc/modprobe.conf")) {
972            log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
973            run_program_and_log_output
974                ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
975        } else {
976            retval++;
977            log_to_screen
978                ("Please find out what happened to /etc/modules.conf");
979        }
980    }
981#endif
982
983    run_program_and_log_output("cat /etc/fstab", 5);
984#ifdef __FreeBSD__
985    run_program_and_log_output("vinum printconfig", 5);
986#else
987    run_program_and_log_output("cat /etc/raidtab", 5);
988#endif
989
990    if (run_program_and_log_output("mindi -V", 1)) {
991        log_to_screen("Could not ascertain mindi's version number.");
992        log_to_screen
993            ("You have not installed Mondo and/or Mindi properly.");
994        log_to_screen("Please uninstall and reinstall them both.");
995        fatal_error("Please reinstall Mondo and Mindi.");
996    }
997    if (run_program_and_log_output
998        ("mindi --makemountlist /tmp/mountlist.txt.test", 5)) {
999        log_to_screen
1000            ("Mindi --makemountlist /tmp/mountlist.txt.test failed for some reason.");
1001        log_to_screen
1002            ("Please run that command by hand and examine /var/log/mindi.log");
1003        log_to_screen
1004            ("for more information. Perhaps your /etc/fstab file is insane.");
1005        log_to_screen
1006            ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1007        retval++;
1008    }
1009
1010    if (!run_program_and_log_output("fdisk -l | grep -i raid", 1)
1011        && !does_file_exist("/etc/raidtab")) {
1012        log_to_screen
1013            ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1014        create_raidtab_from_mdstat("/etc/raidtab", "/proc/mdstat");
1015    }
1016
1017    if (retval) {
1018        mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1019    } else {
1020        mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1021    }
1022    return (retval);
1023}
1024
1025/**
1026 * Retrieve the line containing @p label from the config file.
1027 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1028 * @param label What to read from the file.
1029 * @param value Where to put it.
1030 * @return 0 for success, 1 for failure.
1031 */
1032int read_cfg_var(char *config_file, char *label, char *value)
1033{
1034    /*@ buffer ****************************************************** */
1035    char *command;
1036    char *tmp;
1037
1038    /*@ end vars *************************************************** */
1039
1040    assert_string_is_neither_NULL_nor_zerolength(config_file);
1041    assert_string_is_neither_NULL_nor_zerolength(label);
1042    if (!does_file_exist(config_file)) {
1043        asprintf(&tmp, "(read_cfg_var) Cannot find %s config file",
1044                 config_file);
1045        log_to_screen(tmp);
1046        paranoid_free(tmp);
1047        value[0] = '\0';
1048        return (1);
1049    } else if (strstr(value, "/dev/") && strstr(value, "t0")
1050               && !strcmp(label, "media-dev")) {
1051        log_msg(2, "FYI, I shan't read new value for %s - already got %s",
1052                label, value);
1053        return (0);
1054    } else {
1055        asprintf(&command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1056                label, config_file);
1057        strcpy(value, call_program_and_get_last_line_of_output(command));
1058        paranoid_free(command);
1059        if (strlen(value) == 0) {
1060            return (1);
1061        } else {
1062            return (0);
1063        }
1064    }
1065}
1066
1067
1068
1069/**
1070 * Remount @c supermount if it was unmounted earlier.
1071 */
1072void remount_supermounts_if_necessary()
1073{
1074    if (g_remount_cdrom_at_end) {
1075        run_program_and_log_output("mount " MNT_CDROM, FALSE);
1076    }
1077    if (g_remount_floppy_at_end) {
1078        run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1079    }
1080}
1081
1082/**
1083 * Unmount @c supermount if it's mounted.
1084 */
1085void unmount_supermounts_if_necessary()
1086{
1087    if (run_program_and_log_output
1088        ("mount | grep cdrom | grep super", FALSE) == 0) {
1089        g_remount_cdrom_at_end = TRUE;
1090        run_program_and_log_output("umount " MNT_CDROM, FALSE);
1091    }
1092    if (run_program_and_log_output
1093        ("mount | grep floppy | grep super", FALSE) == 0) {
1094        g_remount_floppy_at_end = TRUE;
1095        run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1096    }
1097}
1098
1099/**
1100 * Whether we had to stop autofs (if so, restart it at end).
1101 */
1102bool g_autofs_stopped = FALSE;
1103
1104/**
1105 * Path to the autofs initscript ("" if none exists).
1106 */
1107char g_autofs_exe[MAX_STR_LEN];
1108
1109/**
1110 * Autofs initscript in Xandros Linux distribution.
1111 */
1112#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1113
1114/**
1115 * Autofs initscript in most Linux distributions.
1116 */
1117#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1118
1119/**
1120 * If autofs is mounted, stop it (restart at end).
1121 */
1122void stop_autofs_if_necessary()
1123{
1124    char *tmp;
1125
1126    g_autofs_exe[0] = '\0';
1127    if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1128        strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1129    } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1130        strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1131    }
1132
1133    if (!g_autofs_exe[0]) {
1134        log_msg(3, "No autofs detected.");
1135    } else {
1136        log_msg(3, "%s --- autofs detected", g_autofs_exe);
1137// FIXME -- only disable it if it's running ---  sprintf(tmp, "%s status", autofs_exe);
1138        asprintf(&tmp, "%s stop", g_autofs_exe);
1139        if (run_program_and_log_output(tmp, 2)) {
1140            log_it("Failed to stop autofs - I assume it wasn't running");
1141        } else {
1142            g_autofs_stopped = TRUE;
1143            log_it("Stopped autofs OK");
1144        }
1145        paranoid_free(tmp);
1146    }
1147}
1148
1149/**
1150 * If autofs was stopped earlier, restart it.
1151 */
1152void restart_autofs_if_necessary()
1153{
1154    char *tmp;
1155
1156    if (!g_autofs_stopped || !g_autofs_exe[0]) {
1157        log_msg(3, "No autofs detected.");
1158        return;
1159    }
1160    asprintf(&tmp, "%s start", g_autofs_exe);
1161    if (run_program_and_log_output(tmp, 2)) {
1162        log_it("Failed to start autofs");
1163    } else {
1164        g_autofs_stopped = FALSE;
1165        log_it("Started autofs OK");
1166    }
1167    paranoid_free(tmp);
1168}
1169
1170
1171/**
1172 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1173 */
1174void mount_boot_if_necessary()
1175{
1176    char *tmp;
1177    char *tmp1;
1178    char *command;
1179
1180    log_msg(1, "Started sub");
1181    log_msg(4, "About to set g_boot_mountpt to \"\"");
1182    asprintf(&g_boot_mountpt, "");
1183    log_msg(4, "Done. Great. Seeting command to something");
1184    asprintf(&command,
1185             "cat /etc/fstab | grep -v \":\" | grep -vx \"#.*\" | grep -w \"/boot\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1186    log_msg(4, "Cool. Command = '%s'", command);
1187    asprintf(&tmp, call_program_and_get_last_line_of_output(command));
1188    paranoid_free(command);
1189
1190    log_msg(4, "tmp = '%s'", tmp);
1191    if (tmp[0]) {
1192        log_it("/boot is at %s according to /etc/fstab", tmp);
1193        if (strstr(tmp, "LABEL=")) {
1194            if (!run_program_and_log_output("mount /boot", 5)) {
1195                paranoid_free(g_boot_mountpt);
1196                asprintf(&g_boot_mountpt, "/boot");
1197                log_msg(1, "Mounted /boot");
1198            } else {
1199                log_it("...ignored cos it's a label :-)");
1200            }
1201        } else {
1202            asprintf(&command, "mount | grep -w \"%s\"", tmp);
1203            log_msg(3, "command = %s", command);
1204            if (run_program_and_log_output(command, 5)) {
1205                paranoid_free(g_boot_mountpt);
1206                asprintf(&g_boot_mountpt, tmp);
1207                asprintf(&tmp1,
1208                         "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1209                         g_boot_mountpt);
1210                log_it(tmp1);
1211                paranoid_free(tmp1);
1212
1213                asprintf(&tmp1, "mount %s", g_boot_mountpt);
1214                if (run_program_and_log_output(tmp1, 5)) {
1215                    paranoid_free(g_boot_mountpt);
1216                    asprintf(&g_boot_mountpt, "");
1217                    log_msg(1, "Plan B");
1218                    if (!run_program_and_log_output("mount /boot", 5)) {
1219                        paranoid_free(g_boot_mountpt);
1220                        asprintf(&g_boot_mountpt, "/boot");
1221                        log_msg(1, "Plan B worked");
1222                    } else {
1223                        log_msg(1,
1224                                "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1225                    }
1226                }
1227                paranoid_free(tmp1);
1228            }
1229            paranoid_free(command);
1230        }
1231    }
1232    paranoid_free(tmp);
1233    log_msg(1, "Ended sub");
1234}
1235
1236
1237/**
1238 * If we mounted /boot earlier, unmount it.
1239 */
1240void unmount_boot_if_necessary()
1241{
1242    char *tmp;
1243
1244    log_msg(3, "starting");
1245    if (g_boot_mountpt[0]) {
1246        asprintf(&tmp, "umount %s", g_boot_mountpt);
1247        if (run_program_and_log_output(tmp, 5)) {
1248            log_it("WARNING - unable to unmount /boot");
1249        }
1250        paranoid_free(tmp);
1251    }
1252    log_msg(3, "leaving");
1253}
1254
1255
1256
1257/**
1258 * Write a line to a configuration file. Writes a line of the form,
1259 * @c label @c value.
1260 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1261 * @param label What to call this bit of data you're writing.
1262 * @param value The bit of data you're writing.
1263 * @return 0 for success, 1 for failure.
1264 */
1265int write_cfg_var(char *config_file, char *label, char *value)
1266{
1267    /*@ buffers ***************************************************** */
1268    char *command;
1269    char *tempfile;
1270    char *tmp;
1271
1272
1273    /*@ end vars *************************************************** */
1274    assert_string_is_neither_NULL_nor_zerolength(config_file);
1275    assert_string_is_neither_NULL_nor_zerolength(label);
1276    assert(value != NULL);
1277
1278    if (!does_file_exist(config_file)) {
1279        asprintf(&tmp, "(write_cfg_file) Cannot find %s config file",
1280                 config_file);
1281        log_to_screen(tmp);
1282        paranoid_free(tmp);
1283        return (1);
1284    }
1285    asprintf(&tempfile,
1286             call_program_and_get_last_line_of_output
1287             ("mktemp -q /tmp/mojo-jojo.blah.XXXXXX"));
1288    if (does_file_exist(config_file)) {
1289        asprintf(&command, "grep -vx '%s .*' %s > %s",
1290                label, config_file, tempfile);
1291        paranoid_system(command);
1292        paranoid_free(command);
1293    }
1294    asprintf(&command, "echo \"%s %s\" >> %s", label, value, tempfile);
1295    paranoid_system(command);
1296    paranoid_free(command);
1297
1298    asprintf(&command, "mv -f %s %s", tempfile, config_file);
1299    paranoid_system(command);
1300    paranoid_free(command);
1301    unlink(tempfile);
1302    paranoid_free(tempfile);
1303    return (0);
1304}
1305
1306
1307/**
1308 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1309 * information to the logfile.
1310 */
1311void standard_log_debug_msg(int debug_level, const char *szFile,
1312                            const char *szFunction, int nLine,
1313                            const char *fmt, ...)
1314{
1315    va_list args;
1316    int i;
1317    static int depth = 0;
1318    FILE *fout;
1319
1320    if (depth > 5) {
1321        depth--;
1322        return;
1323    }
1324    depth++;
1325
1326    if (debug_level <= g_loglevel) {
1327        va_start(args, fmt);
1328        if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1329            return;
1330        }                       // fatal_error("Failed to openout to logfile - sheesh..."); }
1331
1332        // add tabs to distinguish log levels
1333        if (debug_level > 0) {
1334            for (i = 1; i < debug_level; i++)
1335                fprintf(fout, "\t");
1336            if (getpid() == g_main_pid)
1337                fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1338                        nLine);
1339            else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1340                fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1341                        nLine);
1342            else
1343                fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1344                        szFunction, nLine);
1345        }
1346        vfprintf(fout, fmt, args);
1347
1348        // do not slow down the progran if standard debug level
1349        // must be enabled: if no flush, the log won't be up-to-date if there
1350        // is a segfault
1351        //if (g_dwDebugLevel != 1)
1352
1353        va_end(args);
1354        fprintf(fout, "\n");
1355        paranoid_fclose(fout);
1356    }
1357    depth--;
1358}
1359
1360/**
1361 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1362 */
1363void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1364                       ...) = standard_log_debug_msg;
1365
1366
1367/**
1368 * Allocate or free important globals, depending on @p mal.
1369 * @param mal If TRUE, malloc; if FALSE, free.
1370 */
1371void do_libmondo_global_strings_thing(int mal)
1372{
1373    if (mal) {
1374        iamhere("Malloc'ing globals");
1375        malloc_string(g_erase_tmpdir_and_scratchdir);
1376        malloc_string(g_serial_string);
1377        malloc_string(g_magicdev_command);
1378    } else {
1379        iamhere("Freeing globals");
1380        paranoid_free(g_boot_mountpt);
1381        paranoid_free(g_mondo_home);
1382        paranoid_free(g_tmpfs_mountpt);
1383        paranoid_free(g_erase_tmpdir_and_scratchdir);
1384        paranoid_free(g_serial_string);
1385        paranoid_free(g_magicdev_command);
1386    }
1387}
1388
1389/**
1390 * Allocate important globals.
1391 * @see do_libmondo_global_strings_thing
1392 */
1393void malloc_libmondo_global_strings(void)
1394{
1395    do_libmondo_global_strings_thing(1);
1396}
1397
1398/**
1399 * Free important globals.
1400 * @see do_libmondo_global_strings_thing
1401 */
1402void free_libmondo_global_strings(void)
1403{
1404    do_libmondo_global_strings_thing(0);
1405}
1406
1407
1408
1409/**
1410 * Stop @c magicdev if it's running.
1411 * The command used to start it is saved in @p g_magicdev_command.
1412 */
1413void stop_magicdev_if_necessary()
1414{
1415    strcpy(g_magicdev_command,
1416           call_program_and_get_last_line_of_output
1417           ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1418    if (g_magicdev_command[0]) {
1419        log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1420        paranoid_system("killall magicdev");
1421    }
1422}
1423
1424
1425/**
1426 * Restart magicdev if it was stopped.
1427 */
1428void restart_magicdev_if_necessary()
1429{
1430    char *tmp;
1431
1432    if (g_magicdev_command && g_magicdev_command[0]) {
1433        asprintf(&tmp, "%s &", g_magicdev_command);
1434        paranoid_system(tmp);
1435        paranoid_free(tmp);
1436    }
1437}
1438
1439/* @} - end of utilityGroup */
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