source: MondoRescue/branches/3.0/mondo/src/common/libmondo-tools.c@ 3185

Last change on this file since 3185 was 3185, checked in by Bruno Cornec, 11 years ago

Simplify the interface of mr_getline and mr_asprintf. With 3.1 compatibility now will allow backports from this branch into 3.0
  • Property svn:keywords set to Id
File size: 41.2 KB
Line 
1/*
2 $Id: libmondo-tools.c 3185 2013-09-20 12:29:57Z 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 3185 2013-09-20 12:29:57Z bruno $";
30
31extern int g_tape_buffer_size_MB;
32extern char *g_serial_string;
33extern bool g_text_mode;
34extern int g_currentY;
35extern int g_current_media_number;
36extern char *MONDO_LOGFILE;
37
38/* Reference to global bkpinfo */
39extern struct s_bkpinfo *bkpinfo;
40
41/**
42 * @addtogroup globalGroup
43 * @{
44 */
45bool g_remount_cdrom_at_end, ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
46 g_remount_floppy_at_end; ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
47bool g_cd_recovery; ///< TRUE if we're making an "autonuke" backup.
48double g_kernel_version;
49
50/**
51 * The place where /boot is mounted.
52 */
53char *g_boot_mountpt = NULL;
54
55/**
56 * The location of Mondo's home directory.
57 */
58char *g_mondo_home = NULL;
59
60/**
61 * The serial string (used to differentiate between backups) of the current backup.
62 */
63char *g_serial_string = NULL;
64
65/**
66 * The location where tmpfs is mounted, or "" if it's not mounted.
67char *g_tmpfs_mountpt = NULL;
68 */
69char *g_magicdev_command = NULL;
70
71/**
72 * The default maximum level to log messages at or below.
73 */
74int g_loglevel = DEFAULT_DEBUG_LEVEL;
75
76/* @} - end of globalGroup */
77
78
79extern pid_t g_buffer_pid;
80extern pid_t g_main_pid;
81
82extern t_bkptype g_backup_media_type;
83
84extern bool am_I_in_disaster_recovery_mode(void);
85
86/*-----------------------------------------------------------*/
87
88
89/**
90 * @addtogroup utilityGroup
91 * @{
92 */
93/**
94 * Assertion handler. Prints a friendly message to the user,
95 * offering to ignore all, dump core, break to debugger,
96 * exit, or ignore. Intended to be used with an assert() macro.
97 *
98 * @param file The file in which the assertion triggered.
99 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
100 * @param line The line number of the assert() statement.
101 * @param exp The expression that failed (as a string).
102 */
103void _mondo_assert_fail(const char *file,
104 const char *function, int line, const char *exp)
105{
106 static int ignoring_assertions = 0;
107 bool is_valid = TRUE;
108
109 log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
110 function);
111 if (ignoring_assertions) {
112 log_it("Well, the user doesn't care...");
113 return;
114 }
115#ifndef _XWIN
116 if (!g_text_mode)
117 newtSuspend();
118#endif
119 printf("ASSERTION FAILED: `%s'\n", exp);
120 printf("\tat %s:%d in %s\n\n", file, line, function);
121 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
122 do {
123 is_valid = TRUE;
124 switch (toupper(getchar())) {
125 case 'A': // ignore (A)ll
126 ignoring_assertions = 1;
127 break;
128 case 'B': // a(B)ort
129 signal(SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
130 raise(SIGABRT);
131 break; /* "can't get here" */
132 case 'D': // (D)ebug, aka asm("int 3")
133#ifdef __IA32__
134 __asm__ __volatile__("int $3"); // break to debugger
135#endif
136 break;
137 case 'E': // (E)xit
138 fatal_error("Failed assertion -- see above for details");
139 break; /* "can't get here" */
140 case 'I': // (I)gnore
141 break;
142 /* These next two work as follows:
143 the `default' catches the user's invalid choice and says so;
144 the '\n' catches the newline on the end and prints the prompt again.
145 */
146 case '\n':
147 printf
148 ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
149 break;
150 default:
151 is_valid = FALSE;
152 printf("Invalid choice.\n");
153 break;
154 }
155 } while (!is_valid);
156
157 if (ignoring_assertions) {
158 log_it("Ignoring ALL assertions from now on.");
159 } else {
160 log_it("Ignoring assertion: %s", exp);
161 }
162
163 getchar(); // skip \n
164
165#ifndef _XWIN
166 if (!g_text_mode)
167 newtResume();
168#endif
169}
170
171/**
172 * Clean's up users' KDE desktops.
173 * @bug Details about this function are unknown.
174 */
175void clean_up_KDE_desktop_if_necessary(void)
176{
177 char *tmp;
178
179 malloc_string(tmp);
180 strcpy(tmp,
181 "for i in `find /root /home -maxdepth 2 -type d -name Desktop`; do \
182file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
183awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
184else { print $0;};}' $file.old > $file ; fi ; done");
185 run_program_and_log_output(tmp, 5);
186 paranoid_free(tmp);
187}
188
189
190/**
191 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
192 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
193 *
194 * @param home_sz String to store the home directory ("" if it could not be found).
195 * @return 0 for success, nonzero for failure.
196 */
197int find_and_store_mondoarchives_home(char *home_sz)
198{
199 assert(home_sz != NULL);
200 strcpy(home_sz, MONDO_SHARE);
201 return (0);
202}
203
204
205char *get_architecture(void) {
206#ifdef __IA32__
207# ifdef __X86_64__
208 return ("x86_64");
209# else
210 return ("i386");
211# endif
212#endif
213#ifdef __IA64__
214 return ("ia64");
215#endif
216 return ("unknown");
217}
218
219
220char *get_uname_m(void) {
221
222 struct utsname utsn;
223 char *tmp = NULL;
224
225 uname(&utsn);
226 mr_asprintf(tmp, "%s", utsn.machine);
227 return (tmp);
228}
229
230
231
232double get_kernel_version(void)
233{
234 char *p, tmp[200];
235 double d;
236#ifdef __FreeBSD__
237 // JOSH - FIXME :)
238 d = 5.2; // :-)
239#else
240 strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
241 p = strchr(tmp, '.');
242 if (p) {
243 p = strchr(++p, '.');
244 if (p) {
245 while (*p) {
246 *p = *(p + 1);
247 p++;
248 }
249 }
250 }
251// log_msg(1, "tmp = '%s'", tmp);
252 d = atof(tmp);
253#endif
254 log_msg(1, "g_kernel_version = %f", d);
255 return (d);
256}
257
258
259
260
261
262/**
263 * Get the current time.
264 * @return number of seconds since the epoch.
265 */
266long get_time()
267{
268 return (long) time((void *) 0);
269}
270
271
272
273
274
275
276
277/**
278 * Initialize a RAID volume structure, setting fields to zero. The
279 * actual hard drive is unaffected.
280 *
281 * @param raidrec The RAID volume structure to initialize.
282 * @note This function is system dependent.
283 */
284#ifdef __FreeBSD__
285void initialize_raidrec(struct vinum_volume *raidrec)
286{
287 int i, j;
288 raidrec->volname[0] = '\0';
289 raidrec->plexes = 0;
290 for (i = 0; i < 9; ++i) {
291 raidrec->plex[i].raidlevel = -1;
292 raidrec->plex[i].stripesize = 0;
293 raidrec->plex[i].subdisks = 0;
294 for (j = 0; j < 9; ++j) {
295 strcpy(raidrec->plex[i].sd[j].which_device, "");
296 }
297 }
298}
299#else
300void initialize_raidrec(struct raid_device_record *raidrec)
301{
302 assert(raidrec != NULL);
303 raidrec->raid_device[0] = '\0';
304 raidrec->raid_level = -9;
305 raidrec->persistent_superblock = 1;
306 raidrec->chunk_size = 64;
307 raidrec->parity = -1;
308 raidrec->data_disks.entries = 0;
309 raidrec->spare_disks.entries = 0;
310 raidrec->parity_disks.entries = 0;
311 raidrec->failed_disks.entries = 0;
312 raidrec->additional_vars.entries = 0;
313}
314#endif
315
316
317
318
319/**
320 * Insert modules that Mondo requires.
321 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
322 * @c msdosfs and @c ext2fs for FreeBSD.
323 */
324void insmod_crucial_modules(void)
325{
326#ifdef __FreeBSD__
327 paranoid_system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
328 paranoid_system("kldstat | grep ext2fs || kldload ext2fs 2> /dev/null");
329#else
330 paranoid_system("modprobe -a msdos vfat loop &> /dev/null");
331#endif
332}
333
334/**
335 * Finish configuring the backup information structure. Call this function
336 * to set the parameters that depend on those that can be given on the command
337 * line.
338 *
339 * @param bkpinfo The backup information structure. Fields modified/used:
340 * - Used: @c bkpinfo->backup_data
341 * - Used: @c bkpinfo->backup_media_type
342 * - Used: @c bkpinfo->cdrw_speed
343 * - Used: @c bkpinfo->compression_level
344 * - Used: @c bkpinfo->include_paths
345 * - Used: @c bkpinfo->prefix
346 * - Used: @c bkpinfo->isodir
347 * - Used: @c bkpinfo->manual_cd_tray
348 * - Used: @c bkpinfo->make_cd_use_lilo
349 * - Used: @c bkpinfo->media_device
350 * - Used: @c bkpinfo->netfs_mount
351 * - Used: @c bkpinfo->nonbootable_backup
352 * - Used: @c bkpinfo->scratchdir
353 * - Used: @c bkpinfo->tmpdir
354 * - Used: @c bkpinfo->use_lzo
355 * - Modified: @c bkpinfo->call_before_iso
356 * - Modified: @c bkpinfo->call_make_iso
357 * - Modified: @c bkpinfo->optimal_set_size
358 * - Modified: @c bkpinfo->zip_exe
359 * - Modified: @c bkpinfo->zip_suffix
360 *
361 * @return number of errors, or 0 for success.
362 * @note Also creates directories that are specified in the @c bkpinfo structure but
363 * do not exist.
364 */
365int post_param_configuration()
366{
367 char *extra_cdrom_params = NULL;
368 char *mondo_mkisofs_sz = NULL;
369 char *command = NULL;
370 char *mtpt;
371 char *hostname;
372 char *isofs_cmd = NULL;
373 char *ip_address = NULL;
374 int retval = 0;
375 char *colon;
376 char *cdr_exe;
377 char *tmp = NULL;
378 char call_before_iso_user[MAX_STR_LEN] = "\0";
379 /*
380 long avm = 0;
381 int rdsiz_MB;
382 */
383 char *iso_dev = NULL;
384 char *iso_mnt = NULL;
385 char *iso_tmp = NULL;
386 char *iso_path = NULL;
387
388 assert(bkpinfo != NULL);
389 malloc_string(mtpt);
390 malloc_string(hostname);
391 malloc_string(cdr_exe);
392 bkpinfo->optimal_set_size =
393 (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
394 1024;
395
396 log_msg(1, "Post-param");
397 if (bkpinfo->backup_media_type == tape) {
398 if (whine_if_not_found("mt") == 1) {
399 fatal_error("Please install the mt command");
400 }
401 log_msg(1, "Tape");
402 mr_asprintf(tmp, "mt -f %s status", bkpinfo->media_device);
403 log_msg(1, "tmp = '%s'", tmp);
404 if (run_program_and_log_output(tmp, 3)) {
405 mr_free(tmp);
406 fatal_error
407 ("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.");
408 }
409 mr_free(tmp);
410 }
411 if (bkpinfo->backup_media_type == iso)
412 make_hole_for_dir(bkpinfo->isodir);
413
414 run_program_and_log_output("uname -a", 5);
415 run_program_and_log_output("cat /etc/*-release", 5);
416 run_program_and_log_output("cat /etc/*issue*", 5);
417#ifdef __FreeBSD__
418#else
419 run_program_and_log_output("cat /proc/cpuinfo", 5);
420 run_program_and_log_output
421 ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
422 5);
423#endif
424
425 if (bkpinfo->use_lzo) {
426 strcpy(bkpinfo->zip_exe, "lzop");
427 strcpy(bkpinfo->zip_suffix, "lzo");
428 } else if (bkpinfo->use_gzip) {
429 strcpy(bkpinfo->zip_exe, "gzip");
430 strcpy(bkpinfo->zip_suffix, "gz");
431 } else if (bkpinfo->compression_level != 0) {
432 strcpy(bkpinfo->zip_exe, "bzip2");
433 strcpy(bkpinfo->zip_suffix, "bz2");
434 } else {
435 bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
436 }
437
438// DVD
439
440 if (bkpinfo->backup_media_type == dvd) {
441 if (find_home_of_exe("growisofs")) {
442 strcpy(cdr_exe, "growisofs");
443 } // unlikely to be used
444 else {
445 fatal_error("Please install growisofs.");
446 }
447 if (bkpinfo->nonbootable_backup) {
448 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
449 } else if
450#ifdef __FreeBSD__
451 (TRUE)
452#else
453 (bkpinfo->make_cd_use_lilo)
454#endif
455#ifdef __IA64__
456 {
457 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
458 }
459#else
460 {
461 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
462 }
463#endif
464 else
465 {
466 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
467 }
468 if (bkpinfo->manual_cd_tray) {
469 paranoid_free(mondo_mkisofs_sz);
470 fatal_error("Manual CD tray + DVD not supported yet.");
471 // -m isn't supported by growisofs, BTW...
472 } else {
473 sprintf(bkpinfo->call_make_iso,
474 "%s %s -Z %s . 2>> _ERR_",
475 mondo_mkisofs_sz,
476 "", bkpinfo->media_device);
477 paranoid_free(mondo_mkisofs_sz);
478 }
479 if (getenv ("SUDO_COMMAND")) {
480 mr_asprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
481 if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
482 mr_free(command);
483 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
484 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
485 }
486 mr_free(command);
487 }
488 log_msg(2, "call_make_iso (DVD res) is ... %s",
489 bkpinfo->call_make_iso);
490 } // end of DVD code
491
492// CD-R or CD-RW
493 if (bkpinfo->backup_media_type == cdrw
494 || bkpinfo->backup_media_type == cdr) {
495 if (!bkpinfo->manual_cd_tray) {
496 mr_asprintf(extra_cdrom_params, "-waiti ");
497 }
498 if (bkpinfo->backup_media_type == cdrw) {
499 mr_asprintf(extra_cdrom_params, "blank=fast ");
500 }
501 if (extra_cdrom_params == NULL) {
502 // If not initialized earlier, do it now
503 mr_asprintf(extra_cdrom_params, " ");
504 }
505 if (find_home_of_exe("cdrecord")) {
506 strcpy(cdr_exe, "cdrecord");
507 } else if (find_home_of_exe("dvdrecord")) {
508 strcpy(cdr_exe, "dvdrecord");
509 } else {
510 fatal_error("Please install either cdrecord or dvdrecord.");
511 }
512 if (find_home_of_exe("genisoimage")) {
513 mr_asprintf(isofs_cmd, "%s", MONDO_GENISOIMAGE_CMD);
514 } else {
515 mr_asprintf(isofs_cmd, "%s", MONDO_MKISOFS_CMD);
516 }
517 if (bkpinfo->nonbootable_backup) {
518 mr_asprintf(mondo_mkisofs_sz, "%s%s", isofs_cmd, MONDO_MKISOFS);
519 } else if
520#ifdef __FreeBSD__
521 (TRUE)
522#else
523 (bkpinfo->make_cd_use_lilo)
524#endif
525#ifdef __IA64__
526 {
527 mr_asprintf(mondo_mkisofs_sz, "%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_ELILO);
528 }
529#else
530 {
531 mr_asprintf(mondo_mkisofs_sz, "%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_LILO);
532 }
533#endif
534 else
535 {
536 mr_asprintf(mondo_mkisofs_sz, "%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_SYSLINUX);
537 }
538 mr_free(isofs_cmd);
539
540 if (bkpinfo->manual_cd_tray) {
541 if (bkpinfo->call_before_iso[0] == '\0') {
542 sprintf(bkpinfo->call_before_iso,
543 "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_",
544 mondo_mkisofs_sz, bkpinfo->tmpdir);
545 } else {
546 strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
547 sprintf (bkpinfo->call_before_iso,
548 "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )",
549 mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
550 }
551 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
552 sprintf(bkpinfo->call_make_iso,
553 "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS,
554 cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
555 extra_cdrom_params, bkpinfo->media_device,
556 bkpinfo->cdrw_speed, bkpinfo->tmpdir);
557 } else {
558 sprintf(bkpinfo->call_make_iso,
559 "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
560 mondo_mkisofs_sz, cdr_exe,
561 (bkpinfo->please_dont_eject) ? " " : "-eject",
562 extra_cdrom_params, bkpinfo->media_device,
563 bkpinfo->cdrw_speed);
564 }
565 paranoid_free(mondo_mkisofs_sz);
566 paranoid_free(extra_cdrom_params);
567 } // end of CD code
568
569 if (bkpinfo->backup_media_type == iso) {
570
571/* Patch by Conor Daly <conor.daly@met.ie>
572 * 23-june-2004
573 * Break up isodir into iso_mnt and iso_path
574 * These will be used along with iso-dev at restore time
575 * to locate the ISOs where ever they're mounted
576 */
577
578 log_it("isodir = %s", bkpinfo->isodir);
579 mr_asprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1",
580 bkpinfo->isodir);
581 log_it("command = %s", command);
582 log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
583 mr_asprintf(iso_dev, "%s", call_program_and_get_last_line_of_output(command));
584 mr_asprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
585 write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
586 mr_free(tmp);
587 mr_free(command);
588
589 mr_asprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
590 mr_free(iso_dev);
591
592 log_it("command = %s", command);
593 log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
594 mr_asprintf(iso_mnt, "%s", call_program_and_get_last_line_of_output(command));
595 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
596 write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
597 mr_free(tmp);
598 mr_free(command);
599
600 log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
601 mr_asprintf(iso_tmp, "%s", bkpinfo->isodir);
602 if (strlen(iso_tmp) < strlen(iso_mnt)) {
603 mr_asprintf(iso_path, "%s", "");
604 } else {
605 // If iso_mnt is only / then iso_path is the full dir
606 // (the formula bellow doesn't work in this case)
607 if (strcmp(iso_mnt, "/") == 0) {
608 mr_asprintf(iso_path, "%s", iso_tmp);
609 // else it's a part of iso_tmp
610 } else {
611 mr_asprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
612 }
613 }
614 mr_free(iso_tmp);
615 mr_free(iso_mnt);
616
617 mr_asprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
618 write_one_liner_data_file(tmp, iso_path);
619 mr_free(tmp);
620
621 log_it("isodir: %s", iso_path);
622 mr_free(iso_path);
623
624 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
625 write_one_liner_data_file(tmp, bkpinfo->prefix);
626 mr_free(tmp);
627
628 log_it("iso-prefix: %s", bkpinfo->prefix);
629
630/* End patch */
631 } // end of iso code
632
633 if (bkpinfo->backup_media_type == netfs) {
634 strcpy(hostname, bkpinfo->netfs_mount);
635 colon = strchr(hostname, ':');
636 if (!colon) {
637 log_it("netfs mount doesn't have a colon in it");
638 retval++;
639 } else {
640 struct hostent *hent;
641
642 *colon = '\0';
643 colon = strchr(hostname, '@');
644 if (colon) {
645 *colon = '\0';
646 colon++;
647 hent = gethostbyname(colon);
648 mr_asprintf(bkpinfo->netfs_user,"%s", hostname);
649 } else {
650 hent = gethostbyname(hostname);
651 }
652 if (!hent) {
653 log_it("Can't resolve Network mount (%s): %s", hostname,
654 hstrerror(h_errno));
655 retval++;
656 } else {
657 mr_asprintf(ip_address, "%s", inet_ntoa((struct in_addr) *((struct in_addr *) hent->h_addr)));
658 mr_strcat(ip_address, strchr(bkpinfo->netfs_mount, ':'));
659 strcpy(bkpinfo->netfs_mount, ip_address);
660 paranoid_free(ip_address);
661 }
662 }
663 store_netfs_config();
664 }
665
666 log_it("Finished processing incoming params");
667 if (retval) {
668 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
669 }
670 if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
671 log_it("tmpdir or scratchdir are blank/missing");
672 retval++;
673 }
674 if (bkpinfo->include_paths[0] == '\0') {
675 // fatal_error ("Why no backup path?");
676 strcpy(bkpinfo->include_paths, "/");
677 }
678 chmod(bkpinfo->scratchdir, 0700);
679 g_backup_media_type = bkpinfo->backup_media_type;
680 paranoid_free(mtpt);
681 paranoid_free(hostname);
682 paranoid_free(cdr_exe);
683 return (retval);
684}
685
686
687
688/**
689 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
690 * Seeds the random-number generator, loads important modules, checks the sanity
691 * of the user's Linux distribution, and deletes logfile.
692 * @param bkpinfo The backup information structure. Will be initialized.
693 * @return number of errors (0 for success)
694 */
695int pre_param_configuration()
696{
697 int res = 0;
698 char *tmp = NULL;
699
700 make_hole_for_dir(MNT_CDROM);
701 assert(bkpinfo != NULL);
702 srandom((unsigned long) (time(NULL)));
703 insmod_crucial_modules();
704 if (bkpinfo->disaster_recovery) {
705 if (!does_nonMS_partition_exist()) {
706 fatal_error
707 ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
708 }
709 }
710
711 mr_asprintf(tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
712 run_program_and_log_output(tmp, FALSE);
713 paranoid_free(tmp);
714 if (find_and_store_mondoarchives_home(g_mondo_home)) {
715 fprintf(stderr,
716 "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");
717 res++;
718 return (res);
719 }
720 res += some_basic_system_sanity_checks();
721 if (res) {
722 log_it("Your distribution did not pass Mondo's sanity test.");
723 }
724 g_current_media_number = 1;
725 bkpinfo->postnuke_tarball[0] = bkpinfo->netfs_mount[0] = '\0';
726 return (res);
727}
728
729/* From busybox under GPLv2 */
730#ifndef HAVE_MKDTEMP
731/* This is now actually part of POSIX.1, but was only added in 2008 */
732char* mkdtemp(char *template)
733{
734 if (mktemp(template) == NULL || mkdir(template, 0700) != 0)
735 return NULL;
736 return template;
737}
738#endif
739
740void setup_tmpdir(char *path) {
741
742 char *tmp = NULL;
743 char *p = NULL;
744
745 if (bkpinfo->tmpdir != NULL) {
746 /* purging a potential old tmpdir */
747 if (chdir("/tmp")) {
748 // FIXME
749 }
750 if (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL) {
751 log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
752 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->tmpdir);
753 } else {
754 log_it("Purging old tmpdir %s/mondo.tmp.*", bkpinfo->tmpdir);
755 mr_asprintf(tmp,"rm -Rf %s/mondo.tmp.*",bkpinfo->tmpdir);
756 }
757 paranoid_system(tmp);
758 mr_free(tmp);
759 }
760
761 /* Always take in account arg first, then env, then default */
762 if (path != NULL) {
763 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", path);
764 } else if (getenv("TMPDIR")) {
765 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
766 } else if (getenv("MRTMP")) {
767 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("MRTMP"));
768 } else {
769 mr_asprintf(tmp, "/tmp/mondo.tmp.XXXXXX");
770 }
771 p = mkdtemp(tmp);
772 if (p == NULL) {
773 log_it("Failed to create global tmp directory %s for Mondo.",tmp);
774 finish(-1);
775 }
776 strcpy(bkpinfo->tmpdir,p);
777 paranoid_free(tmp);
778
779 mr_asprintf(tmp, "mkdir -p %s/tmpfs", bkpinfo->tmpdir);
780 paranoid_system(tmp);
781 mr_free(tmp);
782}
783
784void setup_scratchdir(char *path) {
785
786 char *tmp = NULL;
787 char *p = NULL;
788
789 if (bkpinfo->scratchdir != NULL) {
790 /* purging a potential old scratchdir */
791 if (chdir("/tmp")) {
792 // FIXME
793 }
794 if (strstr(bkpinfo->scratchdir,"mondo.scratch.") != NULL) {
795 log_it("Purging old scratchdir %s", bkpinfo->scratchdir);
796 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->scratchdir);
797 } else {
798 log_it("Purging old scratchdir %s/mondo.scratch.*", bkpinfo->scratchdir);
799 mr_asprintf(tmp,"rm -Rf %s/mondo.scratch.*",bkpinfo->scratchdir);
800 }
801 paranoid_system(tmp);
802 mr_free(tmp);
803 }
804
805 /* Always take in account arg first, then env, then default */
806 if (path != NULL) {
807 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", path);
808 } else if (getenv("MRSCRATCH")) {
809 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", getenv("MRSCRATCH"));
810 } else {
811 mr_asprintf(tmp, "/tmp/mondo.scratch.XXXXXX");
812 }
813 p = mkdtemp(tmp);
814 if (p == NULL) {
815 log_it("Failed to create global scratch directory %s for Mondo.",tmp);
816 finish(-1);
817 }
818 strcpy(bkpinfo->scratchdir,p);
819 paranoid_free(tmp);
820
821 mr_asprintf(tmp, "mkdir -p %s", bkpinfo->scratchdir);
822 paranoid_system(tmp);
823 mr_free(tmp);
824}
825
826
827/**
828 * Reset all fields of the backup information structure to a sensible default.
829 * @param bkpinfo The @c bkpinfo to reset.
830 */
831void reset_bkpinfo()
832{
833 int i;
834
835 log_msg(1, "Hi");
836 assert(bkpinfo != NULL);
837 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
838
839 bkpinfo->media_device[0] = '\0';
840 bkpinfo->media_size = -1;
841 bkpinfo->boot_loader = '\0';
842 bkpinfo->boot_device[0] = '\0';
843 bkpinfo->zip_exe[0] = '\0';
844 bkpinfo->zip_suffix[0] = '\0';
845 bkpinfo->image_devs[0] = '\0';
846 bkpinfo->compression_level = 3;
847 bkpinfo->use_lzo = FALSE;
848 bkpinfo->use_gzip = FALSE;
849 bkpinfo->do_not_compress_these[0] = '\0';
850 bkpinfo->verify_data = FALSE;
851 bkpinfo->backup_data = FALSE;
852 bkpinfo->restore_data = FALSE;
853 bkpinfo->use_star = FALSE;
854 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
855 bkpinfo->disaster_recovery =
856 (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
857 if (bkpinfo->disaster_recovery) {
858 strcpy(bkpinfo->isodir, "/");
859 } else {
860 strcpy(bkpinfo->isodir, MONDO_CACHE);
861 }
862 strcpy(bkpinfo->prefix, STD_PREFIX);
863 setup_tmpdir(NULL);
864 setup_scratchdir(NULL);
865
866 bkpinfo->optimal_set_size = 0;
867 strcpy(bkpinfo->include_paths, "/");
868 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
869 bkpinfo->include_paths[0] = '\0';
870 bkpinfo->exclude_devs = NULL;
871 bkpinfo->restore_path[0] = '\0';
872 bkpinfo->call_before_iso[0] = '\0';
873 bkpinfo->call_make_iso[0] = '\0';
874 bkpinfo->call_burn_iso[0] = '\0';
875 bkpinfo->call_after_iso[0] = '\0';
876 bkpinfo->kernel_path[0] = '\0';
877 bkpinfo->netfs_mount[0] = '\0';
878 bkpinfo->netfs_proto = NULL;
879 bkpinfo->netfs_user = NULL;
880 bkpinfo->netfs_remote_dir[0] = '\0';
881 bkpinfo->exclude_paths = NULL;
882 bkpinfo->subdir = NULL;
883 bkpinfo->postnuke_tarball[0] = '\0';
884 bkpinfo->wipe_media_first = FALSE;
885 bkpinfo->differential = 0;
886 bkpinfo->please_dont_eject = FALSE;
887 bkpinfo->cdrw_speed = 0;
888 bkpinfo->manual_cd_tray = FALSE;
889 bkpinfo->nonbootable_backup = FALSE;
890 bkpinfo->make_cd_use_lilo = FALSE;
891 bkpinfo->use_obdr = FALSE;
892 bkpinfo->restore_mode = interactive;
893}
894
895
896
897
898/**
899 * Get the remaining free space (in MB) on @p partition.
900 * @param partition The partition to check free space on (either a device or a mountpoint).
901 * @return The free space on @p partition, in MB.
902 */
903long free_space_on_given_partition(char *partition)
904{
905 char *out_sz = NULL;
906 char *command = NULL;
907 long res;
908
909 assert_string_is_neither_NULL_nor_zerolength(partition);
910
911 mr_asprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
912 if (system(command)) {
913 mr_free(command);
914 return (-1);
915 } // partition does not exist
916 mr_free(command);
917
918 mr_asprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
919 partition);
920 mr_asprintf(out_sz, "%s", call_program_and_get_last_line_of_output(command));
921 mr_free(command);
922
923 if (strlen(out_sz) == 0) {
924 mr_free(out_sz);
925 return (-1);
926 } // error within df, probably
927 res = atol(out_sz);
928 mr_free(out_sz);
929 return (res);
930}
931
932
933
934/**
935 * Check the user's system for sanity. Checks performed:
936 * - make sure user has enough RAM (32mb required, 64mb recommended)
937 * - make sure user has enough free space in @c /
938 * - check kernel for ramdisk support
939 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
940 * - make sure CD-ROM is unmounted
941 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
942 *
943 * @return number of problems with the user's setup (0 for success)
944 */
945int some_basic_system_sanity_checks()
946{
947
948 /*@ buffers ************ */
949 char *tmp = NULL;
950
951 /*@ int's *************** */
952 int retval = 0;
953
954 mvaddstr_and_log_it(g_currentY, 0,
955 "Checking sanity of your Linux distribution");
956#ifndef __FreeBSD__
957 if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
958 && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
959 log_it
960 ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
961 run_program_and_log_output
962 ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
963 }
964 mr_asprintf(tmp, "%s",
965 call_program_and_get_last_line_of_output
966 ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
967 if (atol(tmp) < 35000) {
968 retval++;
969 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
970 }
971 if (atol(tmp) < 66000) {
972 log_to_screen
973 ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
974 }
975 mr_free(tmp);
976#endif
977
978 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
979 retval++;
980 log_to_screen
981 ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
982 fatal_error
983 ("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. :)");
984 }
985#ifndef __FreeBSD__
986 if (run_program_and_log_output
987 ("grep ramdisk /proc/devices", FALSE)) {
988 /* Some SuSE have ramdisk as modules, so insert it first, then test again */
989 run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
990 if (run_program_and_log_output
991 ("grep ramdisk /proc/devices", FALSE)) {
992 if (!ask_me_yes_or_no
993 ("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?"))
994 {
995 // retval++;
996 log_to_screen
997 ("It looks as if your kernel lacks ramdisk and initrd support.");
998 log_to_screen
999 ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
1000 }
1001 }
1002 }
1003#endif
1004 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
1005 if (system("which genisoimage > /dev/null 2> /dev/null")) {
1006 retval += whine_if_not_found("mkisofs");
1007 }
1008 if (system("which wodim > /dev/null 2> /dev/null")) {
1009 retval += whine_if_not_found("cdrecord");
1010 }
1011 retval += whine_if_not_found("bzip2");
1012 retval += whine_if_not_found("gzip");
1013 retval += whine_if_not_found("awk");
1014 retval += whine_if_not_found("md5sum");
1015 retval += whine_if_not_found("strings");
1016 retval += whine_if_not_found("mindi");
1017 retval += whine_if_not_found("buffer");
1018
1019 // abort if Windows partition but no ms-sys and parted
1020 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
1021 log_to_screen("I think you have a Windows 9x partition.");
1022 retval += whine_if_not_found("parted");
1023 }
1024
1025 if (!find_home_of_exe("cmp")) {
1026 whine_if_not_found("cmp");
1027 }
1028 run_program_and_log_output
1029 ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1030 mr_asprintf(tmp, "%s",
1031 call_program_and_get_last_line_of_output
1032 ("mount | grep -E \"cdr(om|w)\""));
1033 if (strcmp("", tmp)) {
1034 if (strstr(tmp, "autofs")) {
1035 log_to_screen
1036 ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1037 log_to_screen
1038 ("if a CD actually is inserted. If a CD is inserted, please");
1039 log_to_screen("eject it. Thank you.");
1040 log_it
1041 ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1042 } else
1043 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1044 retval++;
1045 mr_free(tmp);
1046 fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
1047 }
1048 }
1049 mr_free(tmp);
1050
1051 run_program_and_log_output("cat /etc/fstab", 5);
1052#ifdef __FreeBSD__
1053 run_program_and_log_output("vinum printconfig", 5);
1054#else
1055 run_program_and_log_output("cat /etc/raidtab", 5);
1056#endif
1057
1058 if (run_program_and_log_output("mindi -V", 1)) {
1059 log_to_screen("Could not ascertain mindi's version number.");
1060 log_to_screen
1061 ("You have not installed Mondo and/or Mindi properly.");
1062 log_to_screen("Please uninstall and reinstall them both.");
1063 fatal_error("Please reinstall Mondo and Mindi.");
1064 }
1065 mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1066 if (run_program_and_log_output(tmp, 5)) {
1067 mr_free(tmp);
1068 mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1069 log_to_screen(tmp);
1070 log_to_screen
1071 ("Please run that command by hand and examine /var/log/mindi.log");
1072 log_to_screen
1073 ("for more information. Perhaps your /etc/fstab file is insane.");
1074 log_to_screen
1075 ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1076 retval++;
1077 }
1078 mr_free(tmp);
1079
1080 if (!run_program_and_log_output("parted2fdisk -l 2>/dev/null | grep -i raid", 1)
1081 && !does_file_exist("/etc/raidtab")) {
1082 log_to_screen
1083 ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1084 create_raidtab_from_mdstat(MDSTAT_FILE,"/etc/raidtab");
1085 }
1086
1087 if (retval) {
1088 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1089 } else {
1090 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1091 }
1092 return (retval);
1093}
1094
1095/**
1096 * Retrieve the line containing @p label from the config file.
1097 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1098 * @param label What to read from the file.
1099 * @param value Where to put it.
1100 * @return 0 for success, 1 for failure.
1101 */
1102int read_cfg_var(char *config_file, char *label, char *value)
1103{
1104 /*@ buffer ****************************************************** */
1105 char *command = NULL;
1106 char *tmp = NULL;
1107
1108 /*@ end vars *************************************************** */
1109
1110 assert_string_is_neither_NULL_nor_zerolength(config_file);
1111 assert_string_is_neither_NULL_nor_zerolength(label);
1112 if (!does_file_exist(config_file)) {
1113 mr_asprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1114 config_file);
1115 log_to_screen(tmp);
1116 mr_free(tmp);
1117
1118 value[0] = '\0';
1119 return (1);
1120 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1121 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1122 return (0);
1123 } else {
1124 mr_asprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1125 label, config_file);
1126 strcpy(value, call_program_and_get_last_line_of_output(command));
1127 mr_free(command);
1128
1129 if (strlen(value) == 0) {
1130 return (1);
1131 } else {
1132 return (0);
1133 }
1134 }
1135}
1136
1137
1138
1139/**
1140 * Remount @c supermount if it was unmounted earlier.
1141 */
1142void remount_supermounts_if_necessary()
1143{
1144 if (g_remount_cdrom_at_end) {
1145 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1146 }
1147 if (g_remount_floppy_at_end) {
1148 run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1149 }
1150}
1151
1152/**
1153 * Unmount @c supermount if it's mounted.
1154 */
1155void unmount_supermounts_if_necessary()
1156{
1157 if (run_program_and_log_output
1158 ("mount | grep cdrom | grep super", FALSE) == 0) {
1159 g_remount_cdrom_at_end = TRUE;
1160 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1161 }
1162 if (run_program_and_log_output
1163 ("mount | grep floppy | grep super", FALSE) == 0) {
1164 g_remount_floppy_at_end = TRUE;
1165 run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1166 }
1167}
1168
1169/**
1170 * Whether we had to stop autofs (if so, restart it at end).
1171 */
1172bool g_autofs_stopped = FALSE;
1173
1174/**
1175 * Path to the autofs initscript ("" if none exists).
1176 */
1177char g_autofs_exe[MAX_STR_LEN];
1178
1179/**
1180 * Autofs initscript in Xandros Linux distribution.
1181 */
1182#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1183
1184/**
1185 * Autofs initscript in most Linux distributions.
1186 */
1187#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1188
1189/**
1190 * If autofs is mounted, stop it (restart at end).
1191 */
1192void stop_autofs_if_necessary()
1193{
1194 char *tmp = NULL;
1195
1196 g_autofs_exe[0] = '\0';
1197 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1198 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1199 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1200 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1201 }
1202
1203 if (!g_autofs_exe[0]) {
1204 log_msg(3, "No autofs detected.");
1205 } else {
1206 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1207 // FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1208 mr_asprintf(tmp, "%s stop", g_autofs_exe);
1209 if (run_program_and_log_output(tmp, 2)) {
1210 log_it("Failed to stop autofs - I assume it wasn't running");
1211 } else {
1212 g_autofs_stopped = TRUE;
1213 log_it("Stopped autofs OK");
1214 }
1215 mr_free(tmp);
1216 }
1217}
1218
1219/**
1220 * If autofs was stopped earlier, restart it.
1221 */
1222void restart_autofs_if_necessary()
1223{
1224 char *tmp = NULL;
1225
1226 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1227 log_msg(3, "No autofs detected.");
1228 return;
1229 }
1230 mr_asprintf(tmp, "%s start", g_autofs_exe);
1231 if (run_program_and_log_output(tmp, 2)) {
1232 log_it("Failed to start autofs");
1233 } else {
1234 g_autofs_stopped = FALSE;
1235 log_it("Started autofs OK");
1236 }
1237 mr_free(tmp);
1238}
1239
1240
1241/**
1242 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1243 */
1244void mount_boot_if_necessary()
1245{
1246 char *tmp = NULL;
1247 char *command = NULL;
1248
1249 log_msg(1, "Started sub");
1250 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1251 g_boot_mountpt[0] = '\0';
1252 log_msg(4, "Done. Great. Seeting command to something");
1253 mr_asprintf(command, "%s",
1254 "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1255 log_msg(4, "Cool. Command = '%s'", command);
1256 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
1257 mr_free(command);
1258
1259 log_msg(4, "tmp = '%s'", tmp);
1260 if (tmp[0]) {
1261 log_it("/boot is at %s according to /etc/fstab", tmp);
1262 mr_asprintf(command, "mount | grep -Ew '/boot'");
1263 mr_free(tmp);
1264 mr_asprintf(tmp, call_program_and_get_last_line_of_output(command));
1265 mr_free(command);
1266
1267 if (!strcmp(tmp,"")) {
1268 if (((strstr(tmp, "LABEL=") != NULL) || (strstr(tmp,"UUID=")) != NULL)) {
1269 if (!run_program_and_log_output("mount /boot", 5)) {
1270 strcpy(g_boot_mountpt, "/boot");
1271 log_msg(1, "Mounted /boot");
1272 } else {
1273 log_it("...ignored cos it's a label or uuid :-)");
1274 }
1275 } else {
1276 mr_asprintf(command, "mount | grep -E '^%s'", tmp);
1277 log_msg(3, "command = %s", command);
1278 if (run_program_and_log_output(command, 5)) {
1279 strcpy(g_boot_mountpt, tmp);
1280 mr_free(tmp);
1281 mr_asprintf(tmp,
1282 "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1283 g_boot_mountpt);
1284 log_it(tmp);
1285 mr_free(tmp);
1286
1287 mr_asprintf(tmp, "mount %s", g_boot_mountpt);
1288 if (run_program_and_log_output(tmp, 5)) {
1289 g_boot_mountpt[0] = '\0';
1290 log_msg(1, "Plan B");
1291 if (!run_program_and_log_output("mount /boot", 5)) {
1292 strcpy(g_boot_mountpt, "/boot");
1293 log_msg(1, "Plan B worked");
1294 } else {
1295 log_msg(1,
1296 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1297 }
1298 }
1299 mr_free(tmp);
1300 }
1301 mr_free(command);
1302 }
1303 }
1304 }
1305 log_msg(1, "Ended sub");
1306}
1307
1308
1309/**
1310 * If we mounted /boot earlier, unmount it.
1311 */
1312void unmount_boot_if_necessary()
1313{
1314 char *tmp = NULL;
1315
1316 log_msg(3, "starting");
1317 if (g_boot_mountpt[0]) {
1318 mr_asprintf(tmp, "umount %s", g_boot_mountpt);
1319 if (run_program_and_log_output(tmp, 5)) {
1320 log_it("WARNING - unable to unmount /boot");
1321 }
1322 mr_free(tmp);
1323 }
1324 log_msg(3, "leaving");
1325}
1326
1327
1328
1329/**
1330 * Write a line to a configuration file. Writes a line of the form,
1331 * @c label @c value.
1332 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1333 * @param label What to call this bit of data you're writing.
1334 * @param value The bit of data you're writing.
1335 * @return 0 for success, 1 for failure.
1336 */
1337int write_cfg_var(char *config_file, char *label, char *value)
1338{
1339 /*@ buffers ***************************************************** */
1340 char *command = NULL;
1341 char *tempfile = NULL;
1342 char *tmp = NULL;
1343
1344
1345 /*@ end vars *************************************************** */
1346 assert_string_is_neither_NULL_nor_zerolength(config_file);
1347 assert_string_is_neither_NULL_nor_zerolength(label);
1348 assert(value != NULL);
1349 if (!does_file_exist(config_file)) {
1350 mr_asprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1351 config_file);
1352 log_to_screen(tmp);
1353 mr_free(tmp);
1354 return (1);
1355 }
1356 mr_asprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1357 if (does_file_exist(config_file)) {
1358 mr_asprintf(command, "grep -vE '^%s .*$' %s > %s",
1359 label, config_file, tempfile);
1360 paranoid_system(command);
1361 mr_free(command);
1362 }
1363 mr_asprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1364 paranoid_system(command);
1365 mr_free(command);
1366
1367 mr_asprintf(command, "mv -f %s %s", tempfile, config_file);
1368 paranoid_system(command);
1369 mr_free(command);
1370 unlink(tempfile);
1371 mr_free(tempfile);
1372 return (0);
1373}
1374
1375
1376/**
1377 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1378 * information to the logfile.
1379 */
1380void standard_log_debug_msg(int debug_level, const char *szFile,
1381 const char *szFunction, int nLine,
1382 const char *fmt, ...)
1383{
1384 va_list args;
1385 int i;
1386 static int depth = 0;
1387 FILE *fout;
1388
1389 if (depth > 5) {
1390 depth--;
1391 return;
1392 }
1393 depth++;
1394
1395 if (debug_level <= g_loglevel) {
1396 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1397 return;
1398 } // fatal_error("Failed to openout to logfile - sheesh..."); }
1399
1400 // add tabs to distinguish log levels
1401 if (debug_level > 0) {
1402 for (i = 1; i < debug_level; i++)
1403 fprintf(fout, "\t");
1404 if (getpid() == g_main_pid)
1405 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1406 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1407 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1408 else
1409 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1410 }
1411 va_start(args, fmt);
1412 vfprintf(fout, fmt, args);
1413 va_end(args);
1414
1415 // do not slow down the progran if standard debug level
1416 // must be enabled: if no flush, the log won't be up-to-date if there
1417 // is a segfault
1418 //if (g_dwDebugLevel != 1)
1419
1420 fprintf(fout, "\n");
1421 paranoid_fclose(fout);
1422 }
1423 depth--;
1424}
1425
1426/**
1427 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1428 */
1429void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1430 ...) = standard_log_debug_msg;
1431
1432
1433/**
1434 * If @p y, malloc @p x, else free @p x.
1435 * @bug This function seems orphaned. Please remove.
1436 */
1437#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1438
1439/**
1440 * Allocate or free important globals, depending on @p mal.
1441 * @param mal If TRUE, malloc; if FALSE, free.
1442 */
1443void do_libmondo_global_strings_thing(int mal)
1444{
1445 if (mal) {
1446 malloc_string(g_boot_mountpt);
1447 malloc_string(g_mondo_home);
1448 /*
1449 malloc_string(g_tmpfs_mountpt);
1450 */
1451 malloc_string(g_serial_string);
1452 malloc_string(g_magicdev_command);
1453 } else {
1454 paranoid_free(g_boot_mountpt);
1455 paranoid_free(g_mondo_home);
1456 /*
1457 paranoid_free(g_tmpfs_mountpt);
1458 */
1459 paranoid_free(g_serial_string);
1460 paranoid_free(g_magicdev_command);
1461
1462 }
1463
1464 /*
1465 char**list_of_arrays[] = {
1466 &g_boot_mountpt,
1467 &g_mondo_home,
1468 &g_tmpfs_mountpt,
1469 &g_serial_string,
1470 &g_magicdev_command,
1471 NULL};
1472
1473 char**ppcurr;
1474 int i;
1475
1476 for(i=0;list_of_arrays[i];i++)
1477 {
1478 log_msg(5, "Allocating %d", i);
1479 ppcurr = list_of_arrays[i];
1480 if (mal)
1481 { *ppcurr = malloc(MAX_STR_LEN); }
1482 else
1483 {
1484 if (*ppcurr)
1485 {
1486 free(*ppcurr);
1487 }
1488 }
1489 }
1490 log_msg(5, "Returning");
1491 */
1492}
1493
1494/**
1495 * Allocate important globals.
1496 * @see do_libmondo_global_strings_thing
1497 */
1498void malloc_libmondo_global_strings(void)
1499{
1500 do_libmondo_global_strings_thing(1);
1501}
1502
1503/**
1504 * Free important globals.
1505 * @see do_libmondo_global_strings_thing
1506 */
1507void free_libmondo_global_strings(void)
1508{
1509 do_libmondo_global_strings_thing(0);
1510}
1511
1512
1513
1514/**
1515 * Stop @c magicdev if it's running.
1516 * The command used to start it is saved in @p g_magicdev_command.
1517 */
1518void stop_magicdev_if_necessary()
1519{
1520 strcpy(g_magicdev_command,
1521 call_program_and_get_last_line_of_output
1522 ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1523 if (g_magicdev_command[0]) {
1524 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1525 paranoid_system("killall magicdev");
1526 }
1527}
1528
1529
1530/**
1531 * Restart magicdev if it was stopped.
1532 */
1533void restart_magicdev_if_necessary()
1534{
1535 char *tmp = NULL;
1536
1537 if (g_magicdev_command && g_magicdev_command[0]) {
1538 mr_asprintf(tmp, "%s &", g_magicdev_command);
1539 paranoid_system(tmp);
1540 mr_free(tmp);
1541 }
1542}
1543
1544/* @} - end of utilityGroup */
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