source: MondoRescue/branches/3.2/mondo/src/common/libmondo-tools.c@ 3373

Last change on this file since 3373 was 3373, checked in by Bruno Cornec, 9 years ago

Change the bkpinfo->boot_device from statically allocated to dynamically allocated
  • Property svn:keywords set to Id
File size: 39.1 KB
Line 
1/*
2 $Id: libmondo-tools.c 3373 2015-04-27 14:25:28Z 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 3373 2015-04-27 14:25:28Z bruno $";
30
31extern int g_tape_buffer_size_MB;
32extern bool g_text_mode;
33extern int g_currentY;
34extern int g_current_media_number;
35extern char *MONDO_LOGFILE;
36
37/* Reference to global bkpinfo */
38extern struct s_bkpinfo *bkpinfo;
39
40/**
41 * @addtogroup globalGroup
42 * @{
43 */
44bool g_remount_cdrom_at_end, ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
45 g_remount_floppy_at_end; ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
46bool g_cd_recovery = FALSE; ///< TRUE if we're making an "autonuke" backup.
47double g_kernel_version;
48
49/**
50 * The place where /boot is mounted.
51 */
52char *g_boot_mountpt = NULL;
53
54/**
55 * The location of Mondo's home directory.
56 */
57char *g_mondo_home = NULL;
58
59/**
60 * The serial string (used to differentiate between backups) of the current backup.
61 */
62extern char *g_serial_string;
63
64/**
65 * The location where tmpfs is mounted, or "" if it's not mounted.
66char *g_tmpfs_mountpt = NULL;
67 */
68char *g_magicdev_command = NULL;
69
70/**
71 * The default maximum level to log messages at or below.
72 */
73int g_loglevel = DEFAULT_DEBUG_LEVEL;
74
75/* @} - end of globalGroup */
76
77
78extern pid_t g_buffer_pid;
79extern pid_t g_main_pid;
80
81extern t_bkptype g_backup_media_type;
82
83extern bool am_I_in_disaster_recovery_mode(void);
84
85/*-----------------------------------------------------------*/
86
87
88/**
89 * @addtogroup utilityGroup
90 * @{
91 */
92/**
93 * Assertion handler. Prints a friendly message to the user,
94 * offering to ignore all, dump core, break to debugger,
95 * exit, or ignore. Intended to be used with an assert() macro.
96 *
97 * @param file The file in which the assertion triggered.
98 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
99 * @param line The line number of the assert() statement.
100 * @param exp The expression that failed (as a string).
101 */
102void _mondo_assert_fail(const char *file,
103 const char *function, int line, const char *exp)
104{
105 static int ignoring_assertions = 0;
106 bool is_valid = TRUE;
107
108 log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
109 function);
110 if (ignoring_assertions) {
111 log_it("Well, the user doesn't care...");
112 return;
113 }
114 if (!g_text_mode)
115 newtSuspend();
116 printf("ASSERTION FAILED: `%s'\n", exp);
117 printf("\tat %s:%d in %s\n\n", file, line, function);
118 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
119 do {
120 is_valid = TRUE;
121 switch (toupper(getchar())) {
122 case 'A': // ignore (A)ll
123 ignoring_assertions = 1;
124 break;
125 case 'B': // a(B)ort
126 signal(SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
127 raise(SIGABRT);
128 break; /* "can't get here" */
129 case 'D': // (D)ebug, aka asm("int 3")
130#ifdef __IA32__
131 __asm__ __volatile__("int $3"); // break to debugger
132#endif
133 break;
134 case 'E': // (E)xit
135 fatal_error("Failed assertion -- see above for details");
136 break; /* "can't get here" */
137 case 'I': // (I)gnore
138 break;
139 /* These next two work as follows:
140 the `default' catches the user's invalid choice and says so;
141 the '\n' catches the newline on the end and prints the prompt again.
142 */
143 case '\n':
144 printf
145 ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
146 break;
147 default:
148 is_valid = FALSE;
149 printf("Invalid choice.\n");
150 break;
151 }
152 } while (!is_valid);
153
154 if (ignoring_assertions) {
155 log_it("Ignoring ALL assertions from now on.");
156 } else {
157 log_it("Ignoring assertion: %s", exp);
158 }
159
160 getchar(); // skip \n
161
162 if (!g_text_mode)
163 newtResume();
164}
165
166/**
167 * Clean's up users' KDE desktops.
168 * @bug Details about this function are unknown.
169 */
170void clean_up_KDE_desktop_if_necessary(void)
171{
172 char *tmp = NULL;
173
174 mr_asprintf(tmp, "for i in `find /root /home -maxdepth 2 -type d -name Desktop -maxdepth 2`; do file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } else { print $0;};}' $file.old > $file ; fi ; done");
175 run_program_and_log_output(tmp, 5);
176 mr_free(tmp);
177}
178
179
180/**
181 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
182 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
183 *
184 * @param home_sz String to store the home directory ("" if it could not be found).
185 * @return 0 for success, nonzero for failure.
186 */
187int find_and_store_mondoarchives_home(char *home_sz)
188{
189 assert(home_sz != NULL);
190 strcpy(home_sz, MONDO_SHARE);
191 return (0);
192}
193
194
195char *get_architecture(void) {
196#ifdef __IA32__
197# ifdef __X86_64__
198 return ("x86_64");
199# else
200 return ("i386");
201# endif
202#endif
203#ifdef __IA64__
204 return ("ia64");
205#endif
206 return ("unknown");
207}
208
209
210char *get_uname_m(void) {
211
212 struct utsname utsn;
213 char *tmp = NULL;
214
215 uname(&utsn);
216 mr_asprintf(tmp, "%s", utsn.machine);
217 return (tmp);
218}
219
220
221
222double get_kernel_version(void)
223{
224 char *p = NULL;
225 char *tmp = NULL;
226 double d;
227#ifdef __FreeBSD__
228 // JOSH - FIXME :)
229 d = 5.2; // :-)
230#else
231 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("uname -r"));
232 p = strchr(tmp, '.');
233 if (p) {
234 p = strchr(++p, '.');
235 if (p) {
236 while (*p) {
237 *p = *(p + 1);
238 p++;
239 }
240 }
241 }
242 d = atof(tmp);
243 mr_free(tmp);
244#endif
245 log_msg(1, "g_kernel_version = %f", d);
246 return (d);
247}
248
249
250/**
251 * Get the current time.
252 * @return number of seconds since the epoch.
253 */
254long get_time()
255{
256 return (long) time((void *) 0);
257}
258
259
260/**
261 * Initialize a RAID volume structure, setting fields to zero. The
262 * actual hard drive is unaffected.
263 *
264 * @param raidrec The RAID volume structure to initialize.
265 * @note This function is system dependent.
266 */
267#ifdef __FreeBSD__
268void initialize_raidrec(struct vinum_volume *raidrec)
269{
270 int i, j;
271 raidrec->volname[0] = '\0';
272 raidrec->plexes = 0;
273 for (i = 0; i < 9; ++i) {
274 raidrec->plex[i].raidlevel = -1;
275 raidrec->plex[i].stripesize = 0;
276 raidrec->plex[i].subdisks = 0;
277 for (j = 0; j < 9; ++j) {
278 strcpy(raidrec->plex[i].sd[j].which_device, "");
279 }
280 }
281}
282#else
283void initialize_raidrec(struct raid_device_record *raidrec)
284{
285 assert(raidrec != NULL);
286 raidrec->raid_device[0] = '\0';
287 raidrec->raid_level = -9;
288 raidrec->persistent_superblock = 1;
289 raidrec->chunk_size = 64;
290 raidrec->parity = -1;
291 raidrec->data_disks.entries = 0;
292 raidrec->spare_disks.entries = 0;
293 raidrec->parity_disks.entries = 0;
294 raidrec->failed_disks.entries = 0;
295 raidrec->additional_vars.entries = 0;
296}
297#endif
298
299
300
301
302/**
303 * Insert modules that Mondo requires.
304 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
305 * @c msdosfs and @c ext2fs for FreeBSD.
306 */
307void insmod_crucial_modules(void)
308{
309#ifdef __FreeBSD__
310 paranoid_system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
311 paranoid_system("kldstat | grep ext2fs || kldload ext2fs 2> /dev/null");
312#else
313 paranoid_system("modprobe -a msdos vfat loop &> /dev/null");
314#endif
315}
316
317/**
318 * Finish configuring the backup information structure. Call this function
319 * to set the parameters that depend on those that can be given on the command
320 * line.
321 *
322 * @param bkpinfo The backup information structure. Fields modified/used:
323 * - Used: @c bkpinfo->backup_data
324 * - Used: @c bkpinfo->backup_media_type
325 * - Used: @c bkpinfo->cdrw_speed
326 * - Used: @c bkpinfo->compression_level
327 * - Used: @c bkpinfo->include_paths
328 * - Used: @c bkpinfo->prefix
329 * - Used: @c bkpinfo->isodir
330 * - Used: @c bkpinfo->manual_cd_tray
331 * - Used: @c bkpinfo->make_cd_use_lilo
332 * - Used: @c bkpinfo->media_device
333 * - Used: @c bkpinfo->netfs_mount
334 * - Used: @c bkpinfo->nonbootable_backup
335 * - Used: @c bkpinfo->scratchdir
336 * - Used: @c bkpinfo->tmpdir
337 * - Used: @c bkpinfo->use_lzo
338 * - Modified: @c bkpinfo->call_before_iso
339 * - Modified: @c bkpinfo->call_make_iso
340 * - Modified: @c bkpinfo->optimal_set_size
341 * - Modified: @c bkpinfo->zip_exe
342 * - Modified: @c bkpinfo->zip_suffix
343 *
344 * @return number of errors, or 0 for success.
345 * @note Also creates directories that are specified in the @c bkpinfo structure but
346 * do not exist.
347 */
348int post_param_configuration()
349{
350 char *extra_cdrom_params = NULL;
351 char *mondo_mkisofs_sz = NULL;
352 char *command = NULL;
353 char *isofs_cmd = NULL;
354 int retval = 0;
355 char *cdr_exe = NULL;
356 char *tmp = NULL;
357 char *call_before_iso_user = NULL;
358 char *iso_dev = NULL;
359 char *iso_mnt = NULL;
360 char *iso_tmp = NULL;
361 char *iso_dir = NULL;
362
363 assert(bkpinfo != NULL);
364
365 bkpinfo->optimal_set_size = (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) * 1024L;
366
367 log_msg(1, "Post-param");
368 if (bkpinfo->backup_media_type == tape) {
369 if (whine_if_not_found("mt") == 1) {
370 fatal_error("Please install the mt command");
371 }
372 log_msg(1, "Tape");
373 if (bkpinfo->media_device == NULL) {
374 return(1);
375 }
376 mr_asprintf(tmp, "mt -f %s status", bkpinfo->media_device);
377 log_msg(1, "tmp = '%s'", tmp);
378 if (run_program_and_log_output(tmp, 3)) {
379 mr_free(tmp);
380 fatal_error("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.");
381 }
382 mr_free(tmp);
383 }
384 if (bkpinfo->backup_media_type == iso)
385 make_hole_for_dir(bkpinfo->isodir);
386
387 run_program_and_log_output("uname -a", 5);
388 run_program_and_log_output("cat /etc/*-release", 5);
389 run_program_and_log_output("cat /etc/*issue*", 5);
390#ifdef __FreeBSD__
391#else
392 run_program_and_log_output("cat /proc/cpuinfo", 5);
393 /*
394 run_program_and_log_output("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc", 5);
395 */
396#endif
397
398 if (bkpinfo->use_lzo) {
399 strcpy(bkpinfo->zip_exe, "lzop");
400 strcpy(bkpinfo->zip_suffix, "lzo");
401 } else if (bkpinfo->use_gzip) {
402 strcpy(bkpinfo->zip_exe, "gzip");
403 strcpy(bkpinfo->zip_suffix, "gz");
404 } else if (bkpinfo->use_lzma) {
405 strcpy(bkpinfo->zip_exe, "lzma");
406 strcpy(bkpinfo->zip_suffix, "lzma");
407 } else if (bkpinfo->compression_level != 0) {
408 strcpy(bkpinfo->zip_exe, "bzip2");
409 strcpy(bkpinfo->zip_suffix, "bz2");
410 } else {
411 bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
412 }
413
414// DVD
415
416 if (bkpinfo->backup_media_type == dvd) {
417 if (find_home_of_exe("growisofs")) {
418 mr_asprintf(cdr_exe, "growisofs");
419 } // unlikely to be used
420 else {
421 fatal_error("Please install growisofs.");
422 }
423 if (bkpinfo->nonbootable_backup) {
424 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
425 } else if
426#ifdef __FreeBSD__
427 (TRUE)
428#else
429 (bkpinfo->make_cd_use_lilo)
430#endif
431#ifdef __IA64__
432 {
433 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
434 }
435#else
436 {
437 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
438 }
439#endif
440 else {
441 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
442 }
443 if (bkpinfo->manual_cd_tray) {
444 fatal_error("Manual CD tray + DVD not supported yet.");
445 // -m isn't supported by growisofs, BTW...
446 } else {
447 sprintf(bkpinfo->call_make_iso, "%s %s -Z %s . 2>> _ERR_", mondo_mkisofs_sz, "", bkpinfo->media_device);
448 }
449 mr_free(mondo_mkisofs_sz);
450 if (getenv ("SUDO_COMMAND")) {
451 mr_asprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
452 if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
453 mr_free(command);
454 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
455 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
456 }
457 mr_free(command);
458 }
459 log_msg(2, "call_make_iso (DVD res) is ... %s", bkpinfo->call_make_iso);
460 } // end of DVD code
461
462// CD-R or CD-RW
463 if (bkpinfo->backup_media_type == cdrw
464 || bkpinfo->backup_media_type == cdr) {
465 if (!bkpinfo->manual_cd_tray) {
466 mr_asprintf(extra_cdrom_params, "-waiti ");
467 }
468 if (bkpinfo->backup_media_type == cdrw) {
469 mr_asprintf(extra_cdrom_params, "blank=fast ");
470 }
471 if (extra_cdrom_params == NULL) {
472 // If not initialized earlier, do it now
473 mr_asprintf(extra_cdrom_params, " ");
474 }
475 if (find_home_of_exe("cdrecord")) {
476 mr_asprintf(cdr_exe, "cdrecord");
477 } else if (find_home_of_exe("dvdrecord")) {
478 mr_asprintf(cdr_exe, "dvdrecord");
479 } else {
480 fatal_error("Please install either cdrecord or dvdrecord.");
481 }
482 if (find_home_of_exe("genisoimage")) {
483 mr_asprintf(isofs_cmd, "%s", MONDO_GENISOIMAGE_CMD);
484 } else {
485 mr_asprintf(isofs_cmd, "%s", MONDO_MKISOFS_CMD);
486 }
487 if (bkpinfo->nonbootable_backup) {
488 mr_asprintf(mondo_mkisofs_sz, "%s%s", isofs_cmd, MONDO_MKISOFS);
489 } else if
490#ifdef __FreeBSD__
491 (TRUE)
492#else
493 (bkpinfo->make_cd_use_lilo)
494#endif
495#ifdef __IA64__
496 {
497 mr_asprintf(mondo_mkisofs_sz, "%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_ELILO);
498 }
499#else
500 {
501 mr_asprintf(mondo_mkisofs_sz, "%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_LILO);
502 }
503#endif
504 else
505 {
506 mr_asprintf(mondo_mkisofs_sz, "%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_SYSLINUX);
507 }
508 mr_free(isofs_cmd);
509
510 if (bkpinfo->manual_cd_tray) {
511 if (bkpinfo->call_before_iso[0] == '\0') {
512 sprintf(bkpinfo->call_before_iso, "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_", mondo_mkisofs_sz, bkpinfo->tmpdir);
513 } else {
514 mr_asprintf(call_before_iso_user, "%s", bkpinfo->call_before_iso);
515 sprintf(bkpinfo->call_before_iso, "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )", mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
516 mr_free(call_before_iso_user);
517 }
518 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
519 sprintf(bkpinfo->call_make_iso, "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS, cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject", extra_cdrom_params, bkpinfo->media_device, bkpinfo->cdrw_speed, bkpinfo->tmpdir);
520 } else {
521 sprintf(bkpinfo->call_make_iso, "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -", mondo_mkisofs_sz, cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject", extra_cdrom_params, bkpinfo->media_device, bkpinfo->cdrw_speed);
522 }
523 mr_free(cdr_exe);
524 mr_free(mondo_mkisofs_sz);
525 mr_free(extra_cdrom_params);
526 } // end of CD code
527
528 if (bkpinfo->backup_media_type == iso) {
529
530/* Break up isodir into iso_mnt and iso_dir
531 * These will be used along with iso-dev at restore time
532 * to locate the ISOs where ever they're mounted
533 */
534
535 log_it("isodir = %s", bkpinfo->isodir);
536 mr_asprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
537 log_it("command = %s", command);
538 mr_asprintf(iso_dev, "%s", call_program_and_get_last_line_of_output(command));
539 log_it("res of it = %s", iso_dev);
540 mr_asprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
541 write_one_liner_data_file(tmp, iso_dev);
542 mr_free(tmp);
543 mr_free(command);
544
545 mr_asprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
546 mr_free(iso_dev);
547
548 log_it("command = %s", command);
549 mr_asprintf(iso_mnt, "%s", call_program_and_get_last_line_of_output(command));
550 log_it("res of it = %s", iso_mnt);
551 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
552 write_one_liner_data_file(tmp, iso_mnt);
553 mr_free(tmp);
554 mr_free(command);
555
556 log_it("iso_mnt: %s, %d", iso_mnt, strlen(iso_mnt));
557 mr_asprintf(iso_tmp, "%s", bkpinfo->isodir);
558 if (strlen(iso_tmp) < strlen(iso_mnt)) {
559 mr_asprintf(iso_dir, "%s", "");
560 } else {
561 // If iso_mnt is only / then iso_dir is the full dir
562 // (the formula bellow doesn't work in this case)
563 if (strcmp(iso_mnt, "/") == 0) {
564 mr_asprintf(iso_dir, "%s", iso_tmp);
565 // else it's a part of iso_tmp
566 } else {
567 mr_asprintf(iso_dir, "%s", iso_tmp + strlen(iso_mnt));
568 }
569 }
570 mr_free(iso_mnt);
571 mr_free(iso_tmp);
572
573 mr_asprintf(tmp, "%s/ISO-DIR", bkpinfo->tmpdir);
574 write_one_liner_data_file(tmp, iso_dir);
575 mr_free(tmp);
576
577 log_it("iso-dir: %s", iso_dir);
578 mr_free(iso_dir);
579
580 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
581 write_one_liner_data_file(tmp, bkpinfo->prefix);
582 mr_free(tmp);
583
584 log_it("iso-prefix: %s", bkpinfo->prefix);
585
586/* End patch */
587 } // end of iso code
588
589 if (bkpinfo->backup_media_type == netfs) {
590 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
591 write_one_liner_data_file(tmp, bkpinfo->prefix);
592 mr_free(tmp);
593
594 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
595 write_one_liner_data_file(tmp, bkpinfo->isodir);
596 mr_free(tmp);
597
598 mr_asprintf(tmp, "%s/ISO-DIR", bkpinfo->tmpdir);
599 write_one_liner_data_file(tmp, bkpinfo->netfs_remote_dir);
600 mr_free(tmp);
601
602 if (bkpinfo->netfs_mount) {
603 mr_asprintf(tmp, "%s/NETFS-SERVER-MOUNT", bkpinfo->tmpdir);
604 write_one_liner_data_file(tmp, bkpinfo->netfs_mount);
605 mr_free(tmp);
606 } else {
607 log_it("netfs_mount is NULL");
608 retval++;
609 }
610 }
611
612 log_it("Finished processing incoming params");
613 if (retval) {
614 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
615 }
616 if (bkpinfo->include_paths == NULL) {
617 mr_asprintf(bkpinfo->include_paths, "/");
618 }
619 g_backup_media_type = bkpinfo->backup_media_type;
620 return (retval);
621}
622
623
624
625/**
626 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
627 * Seeds the random-number generator, loads important modules, checks the sanity
628 * of the user's Linux distribution, and deletes logfile.
629 * @param bkpinfo The backup information structure. Will be initialized.
630 * @return number of errors (0 for success)
631 */
632int pre_param_configuration()
633{
634 int res = 0;
635 char *tmp = NULL;
636
637 make_hole_for_dir(MNT_CDROM);
638 assert(bkpinfo != NULL);
639 srandom((unsigned long) (time(NULL)));
640 insmod_crucial_modules();
641 if (bkpinfo->disaster_recovery) {
642 if (!does_nonMS_partition_exist()) {
643 fatal_error("I am in disaster recovery mode\nPlease don't run mondoarchive.");
644 }
645 }
646
647 mr_asprintf(tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
648 run_program_and_log_output(tmp, FALSE);
649 paranoid_free(tmp);
650 if (find_and_store_mondoarchives_home(g_mondo_home)) {
651 fprintf(stderr, "Cannot find Mondo's homedir. I think you have >1 'mondo' directory on your hard disk. Please delete the superfluous 'mondo' directories and try again\n");
652 res++;
653 return (res);
654 }
655 res += some_basic_system_sanity_checks();
656 if (res) {
657 log_it("Your distribution did not pass Mondo's sanity test.");
658 }
659 g_current_media_number = 1;
660 bkpinfo->postnuke_tarball[0] = '\0';
661 return (res);
662}
663
664/* From busybox under GPLv2 */
665#ifndef HAVE_MKDTEMP
666/* This is now actually part of POSIX.1, but was only added in 2008 */
667char* mkdtemp(char *template)
668{
669 if (mktemp(template) == NULL || mkdir(template, 0700) != 0)
670 return NULL;
671 return template;
672}
673#endif
674
675void setup_tmpdir(char *path) {
676
677 char *tmp = NULL;
678 char *p = NULL;
679
680 if (bkpinfo->tmpdir[0] != '\0') {
681 /* purging a potential old tmpdir */
682 if (chdir("/tmp")) {
683 // FIXME
684 }
685 if (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL) {
686 log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
687 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->tmpdir);
688 } else {
689 log_it("Purging old tmpdir %s/mondo.tmp.*", bkpinfo->tmpdir);
690 mr_asprintf(tmp,"rm -Rf %s/mondo.tmp.*",bkpinfo->tmpdir);
691 }
692 paranoid_system(tmp);
693 mr_free(tmp);
694 }
695
696 /* Always take in account arg first, then env, then default */
697 if (path != NULL) {
698 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", path);
699 } else if (getenv("TMPDIR")) {
700 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
701 } else if (getenv("MRTMP")) {
702 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("MRTMP"));
703 } else {
704 mr_asprintf(tmp, "/tmp/mondo.tmp.XXXXXX");
705 }
706 p = mkdtemp(tmp);
707 if (p == NULL) {
708 printf("Failed to create global tmp directory %s for Mondo.",tmp);
709 mr_free(tmp);
710 finish(-1);
711 }
712 strcpy(bkpinfo->tmpdir,p);
713 mr_free(tmp);
714
715 log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
716
717 mr_asprintf(tmp, "mkdir -p %s/tmpfs", bkpinfo->tmpdir);
718 paranoid_system(tmp);
719 mr_free(tmp);
720}
721
722void setup_scratchdir(char *path) {
723
724 char *tmp = NULL;
725 char *p = NULL;
726
727 if (bkpinfo->scratchdir != NULL) {
728 /* purging a potential old scratchdir */
729 if (chdir("/tmp")) {
730 // FIXME
731 }
732 if (strstr(bkpinfo->scratchdir,"mondo.scratch.") != NULL) {
733 log_it("Purging old scratchdir %s", bkpinfo->scratchdir);
734 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->scratchdir);
735 } else {
736 log_it("Purging old scratchdir %s/mondo.scratch.*", bkpinfo->scratchdir);
737 mr_asprintf(tmp,"rm -Rf %s/mondo.scratch.*",bkpinfo->scratchdir);
738 }
739 paranoid_system(tmp);
740 mr_free(tmp);
741 }
742
743 /* Always take in account arg first, then env, then default */
744 if (path != NULL) {
745 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", path);
746 } else if (getenv("MRSCRATCH")) {
747 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", getenv("MRSCRATCH"));
748 } else {
749 mr_asprintf(tmp, "/tmp/mondo.scratch.XXXXXX");
750 }
751 p = mkdtemp(tmp);
752 if (p == NULL) {
753 log_it("Failed to create global scratch directory %s for Mondo.",tmp);
754 finish(-1);
755 }
756 strcpy(bkpinfo->scratchdir,p);
757 log_it("bkpinfo->scratchdir is being set to %s", bkpinfo->scratchdir);
758 paranoid_free(tmp);
759
760 mr_asprintf(tmp, "mkdir -p %s", bkpinfo->scratchdir);
761 paranoid_system(tmp);
762 mr_free(tmp);
763}
764
765
766/**
767 * Reset all fields of the backup information structure to a sensible default.
768 * @param bkpinfo The @c bkpinfo to reset.
769 */
770void reset_bkpinfo()
771{
772 assert(bkpinfo != NULL);
773 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
774
775 bkpinfo->media_device[0] = '\0';
776 bkpinfo->media_size = -1;
777 bkpinfo->boot_loader = '\0';
778 bkpinfo->boot_device = NULL;
779 bkpinfo->zip_exe[0] = '\0';
780 bkpinfo->zip_suffix[0] = '\0';
781 bkpinfo->image_devs[0] = '\0';
782 bkpinfo->compression_level = 3;
783 bkpinfo->use_lzo = FALSE;
784 bkpinfo->use_gzip = FALSE;
785 bkpinfo->use_lzma = FALSE;
786 bkpinfo->verify_data = FALSE;
787 bkpinfo->backup_data = FALSE;
788 bkpinfo->restore_data = FALSE;
789 bkpinfo->use_star = FALSE;
790 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
791
792 /* We need tmpdir as early as possible for further function calls */
793 bkpinfo->tmpdir[0] = '\0'; // Really setup after
794 bkpinfo->scratchdir[0] = '\0'; // Really setup after
795 setup_tmpdir(NULL);
796 setup_scratchdir(NULL);
797
798 bkpinfo->disaster_recovery = am_I_in_disaster_recovery_mode();
799 if (bkpinfo->disaster_recovery) {
800 strcpy(bkpinfo->isodir, "/");
801 } else {
802 strcpy(bkpinfo->isodir, MONDO_CACHE);
803 }
804 strcpy(bkpinfo->prefix, STD_PREFIX);
805 bkpinfo->optimal_set_size = 0L;
806 bkpinfo->backup_media_type = none;
807 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
808 bkpinfo->exclude_paths = NULL;
809 bkpinfo->include_paths = NULL;
810 bkpinfo->exclude_devs = NULL;
811 bkpinfo->restore_path[0] = '\0';
812 bkpinfo->call_before_iso[0] = '\0';
813 bkpinfo->call_make_iso[0] = '\0';
814 bkpinfo->call_burn_iso[0] = '\0';
815 bkpinfo->call_after_iso[0] = '\0';
816 bkpinfo->kernel_path[0] = '\0';
817 bkpinfo->netfs_mount = NULL;
818 bkpinfo->netfs_proto = NULL;
819 bkpinfo->netfs_user = NULL;
820 bkpinfo->netfs_remote_dir = NULL;
821 bkpinfo->postnuke_tarball[0] = '\0';
822 bkpinfo->subdir = NULL;
823 bkpinfo->wipe_media_first = FALSE;
824 bkpinfo->differential = 0;
825 bkpinfo->please_dont_eject = FALSE;
826 bkpinfo->cdrw_speed = 0;
827 bkpinfo->manual_cd_tray = FALSE;
828 bkpinfo->nonbootable_backup = FALSE;
829 bkpinfo->make_cd_use_lilo = FALSE;
830 bkpinfo->use_obdr = FALSE;
831 bkpinfo->restore_mode = interactive;
832}
833
834
835/**
836 * Get the remaining free space (in MB) on @p partition.
837 * @param partition The partition to check free space on (either a device or a mountpoint).
838 * @return The free space on @p partition, in MB.
839 */
840long free_space_on_given_partition(char *partition)
841{
842 char *out_sz = NULL;
843 char *command = NULL;
844 long res;
845
846 assert_string_is_neither_NULL_nor_zerolength(partition);
847
848 mr_asprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
849 if (system(command)) {
850 mr_free(command);
851 return (-1);
852 } // partition does not exist
853 mr_free(command);
854
855 mr_asprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4", partition);
856 mr_asprintf(out_sz, "%s", call_program_and_get_last_line_of_output(command));
857 mr_free(command);
858
859 if (strlen(out_sz) == 0) {
860 mr_free(out_sz);
861 return (-1);
862 } // error within df, probably
863 res = atol(out_sz);
864 mr_free(out_sz);
865 return (res);
866}
867
868
869
870/**
871 * Check the user's system for sanity. Checks performed:
872 * - make sure user has enough RAM (32mb required, 64mb recommended)
873 * - make sure user has enough free space in @c /
874 * - check kernel for ramdisk support
875 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
876 * - make sure CD-ROM is unmounted
877 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
878 *
879 * @return number of problems with the user's setup (0 for success)
880 */
881int some_basic_system_sanity_checks()
882{
883
884 /*@ buffers ************ */
885 char *tmp = NULL;
886
887 /*@ int's *************** */
888 int retval = 0;
889
890 mvaddstr_and_log_it(g_currentY, 0, "Checking sanity of your Linux distribution");
891#ifndef __FreeBSD__
892 if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
893 && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
894 log_it("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
895 run_program_and_log_output("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
896 }
897 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
898 if (atol(tmp) < 35000) {
899 retval++;
900 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
901 }
902 if (atol(tmp) < 66000) {
903 log_to_screen("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
904 }
905 mr_free(tmp);
906#endif
907
908 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
909 retval++;
910 log_to_screen
911 ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
912 fatal_error
913 ("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. :)");
914 }
915#ifndef __FreeBSD__
916 if (run_program_and_log_output
917 ("grep ramdisk /proc/devices", FALSE)) {
918 /* Some SuSE have ramdisk as modules, so insert it first, then test again */
919 run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
920 if (run_program_and_log_output("grep ramdisk /proc/devices", FALSE)) {
921 if (!ask_me_yes_or_no("Your kernel has no ramdisk support. That's mind-numbingly stupid but I'll allow it if you're planning to use another kernel. Are you?")) {
922 // retval++;
923 log_to_screen("It looks as if your kernel lacks ramdisk and initrd support.");
924 log_to_screen("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
925 }
926 }
927 }
928#endif
929 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
930 if (system("which genisoimage > /dev/null 2> /dev/null")) {
931 retval += whine_if_not_found("mkisofs");
932 }
933 if (system("which wodim > /dev/null 2> /dev/null")) {
934 retval += whine_if_not_found("cdrecord");
935 }
936 retval += whine_if_not_found("bzip2");
937 retval += whine_if_not_found("gzip");
938 retval += whine_if_not_found("awk");
939 retval += whine_if_not_found("md5sum");
940 retval += whine_if_not_found("strings");
941 retval += whine_if_not_found("mindi");
942 retval += whine_if_not_found("buffer");
943
944 // abort if Windows partition but no ms-sys and parted
945 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
946 log_to_screen("I think you have a Windows 9x partition.");
947 retval += whine_if_not_found("parted");
948 }
949
950 if (!find_home_of_exe("cmp")) {
951 whine_if_not_found("cmp");
952 }
953 run_program_and_log_output("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
954 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("mount | grep -E \"cdr(om|w)\""));
955 if (strcmp("", tmp)) {
956 if (strstr(tmp, "autofs")) {
957 log_to_screen("Your CD-ROM is mounted via autofs. I therefore cannot tell");
958 log_to_screen("if a CD actually is inserted. If a CD is inserted, please");
959 log_to_screen("eject it. Thank you.");
960 log_it("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
961 } else
962 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
963 retval++;
964 mr_free(tmp);
965 fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
966 }
967 }
968 mr_free(tmp);
969
970 run_program_and_log_output("cat /etc/fstab", 5);
971#ifdef __FreeBSD__
972 run_program_and_log_output("vinum printconfig", 5);
973#else
974 run_program_and_log_output("cat /etc/raidtab", 5);
975#endif
976
977 if (run_program_and_log_output("mindi -V", 1)) {
978 log_to_screen("Could not ascertain mindi's version number.");
979 log_to_screen("You have not installed Mondo and/or Mindi properly.");
980 log_to_screen("Please uninstall and reinstall them both.");
981 fatal_error("Please reinstall Mondo and Mindi.");
982 }
983 mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
984 if (run_program_and_log_output(tmp, 5)) {
985 log_to_screen("%s failed for some reason.", tmp);
986 mr_free(tmp);
987 log_to_screen("Please run that command by hand and examine "MINDI_LOGFILE);
988 log_to_screen("for more information. Perhaps your /etc/fstab file is insane.");
989 log_to_screen("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
990 retval++;
991 }
992 mr_free(tmp);
993
994 if (!run_program_and_log_output("mr_parted2fdisk -l 2>/dev/null | grep -i raid", 1) && !does_file_exist("/etc/raidtab")) {
995 log_to_screen("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
996 create_raidtab_from_mdstat(MDSTAT_FILE,"/etc/raidtab");
997 }
998
999 if (retval) {
1000 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1001 } else {
1002 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1003 }
1004 return (retval);
1005}
1006
1007/**
1008 * Retrieve the line containing @p label from the config file.
1009 * @param config_file The file to read from, usually @c /tmp/mondorestore.cfg.
1010 * @param label What to read from the file.
1011 * @param value Where to put it.
1012 * @return 0 for success, 1 for failure.
1013 */
1014int read_cfg_var(char *config_file, char *label, char *value)
1015{
1016 /*@ buffer ****************************************************** */
1017 char *command = NULL;
1018
1019 /*@ end vars *************************************************** */
1020
1021 assert_string_is_neither_NULL_nor_zerolength(config_file);
1022 assert_string_is_neither_NULL_nor_zerolength(label);
1023 if (!does_file_exist(config_file)) {
1024 log_to_screen("(read_cfg_var) Cannot find %s config file", config_file);
1025 value[0] = '\0';
1026 return (1);
1027 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1028 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1029 return (0);
1030 } else {
1031 mr_asprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1032 strcpy(value, call_program_and_get_last_line_of_output(command));
1033 mr_free(command);
1034
1035 log_msg(4, "Configuration item %s is %s", label, value);
1036 if (strlen(value) == 0) {
1037 return (1);
1038 } else {
1039 return (0);
1040 }
1041 }
1042}
1043
1044
1045
1046/**
1047 * Remount @c supermount if it was unmounted earlier.
1048 */
1049void remount_supermounts_if_necessary()
1050{
1051 if (g_remount_cdrom_at_end) {
1052 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1053 }
1054 if (g_remount_floppy_at_end) {
1055 run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1056 }
1057}
1058
1059/**
1060 * Unmount @c supermount if it's mounted.
1061 */
1062void unmount_supermounts_if_necessary()
1063{
1064 if (run_program_and_log_output
1065 ("mount | grep cdrom | grep super", FALSE) == 0) {
1066 g_remount_cdrom_at_end = TRUE;
1067 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1068 }
1069 if (run_program_and_log_output
1070 ("mount | grep floppy | grep super", FALSE) == 0) {
1071 g_remount_floppy_at_end = TRUE;
1072 run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1073 }
1074}
1075
1076/**
1077 * Whether we had to stop autofs (if so, restart it at end).
1078 */
1079bool g_autofs_stopped = FALSE;
1080
1081/**
1082 * Path to the autofs initscript ("" if none exists).
1083 */
1084char g_autofs_exe[MAX_STR_LEN];
1085
1086/**
1087 * Autofs initscript in Xandros Linux distribution.
1088 */
1089#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1090
1091/**
1092 * Autofs initscript in most Linux distributions.
1093 */
1094#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1095
1096/**
1097 * If autofs is mounted, stop it (restart at end).
1098 */
1099void stop_autofs_if_necessary()
1100{
1101 char *tmp = NULL;
1102
1103 g_autofs_exe[0] = '\0';
1104 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1105 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1106 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1107 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1108 }
1109
1110 if (!g_autofs_exe[0]) {
1111 log_msg(3, "No autofs detected.");
1112 } else {
1113 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1114 // FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1115 mr_asprintf(tmp, "%s stop", g_autofs_exe);
1116 if (run_program_and_log_output(tmp, 2)) {
1117 log_it("Failed to stop autofs - I assume it wasn't running");
1118 } else {
1119 g_autofs_stopped = TRUE;
1120 log_it("Stopped autofs OK");
1121 }
1122 mr_free(tmp);
1123 }
1124}
1125
1126/**
1127 * If autofs was stopped earlier, restart it.
1128 */
1129void restart_autofs_if_necessary()
1130{
1131 char *tmp = NULL;
1132
1133 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1134 log_msg(3, "No autofs detected.");
1135 return;
1136 }
1137 mr_asprintf(tmp, "%s start", g_autofs_exe);
1138 if (run_program_and_log_output(tmp, 2)) {
1139 log_it("Failed to start autofs");
1140 } else {
1141 g_autofs_stopped = FALSE;
1142 log_it("Started autofs OK");
1143 }
1144 mr_free(tmp);
1145}
1146
1147
1148/**
1149 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1150 */
1151void mount_boot_if_necessary() {
1152 char *tmp = NULL;
1153 char *command = NULL;
1154
1155 log_msg(1, "Started sub");
1156 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1157 g_boot_mountpt[0] = '\0';
1158 log_msg(4, "Done. Great. Seeting command to something");
1159 mr_asprintf(command, "%s", "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1160 log_msg(4, "Cool. Command = '%s'", command);
1161 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
1162 mr_free(command);
1163
1164 log_msg(4, "tmp = '%s'", tmp);
1165 log_it("/boot is at %s according to /etc/fstab", tmp);
1166 mr_asprintf(command, "mount | grep -Ew '/boot'");
1167 mr_free(tmp);
1168
1169 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
1170 mr_free(command);
1171
1172 if (!strcmp(tmp,"")) {
1173 if ((strstr(tmp, "LABEL=") != NULL) || (strstr(tmp,"UUID=") != NULL)) {
1174 if (!run_program_and_log_output("mount /boot", 5)) {
1175 strcpy(g_boot_mountpt, "/boot");
1176 log_msg(1, "Mounted /boot");
1177 } else {
1178 log_it("...ignored cos it's a label or uuid :-)");
1179 }
1180 } else {
1181 mr_asprintf(command, "mount | grep -E '^%s'", tmp);
1182 log_msg(3, "command = %s", command);
1183 if (run_program_and_log_output(command, 5)) {
1184 strcpy(g_boot_mountpt, tmp);
1185 mr_free(tmp);
1186 log_it("%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1187
1188 mr_asprintf(tmp, "mount %s", g_boot_mountpt);
1189 if (run_program_and_log_output(tmp, 5)) {
1190 g_boot_mountpt[0] = '\0';
1191 log_msg(1, "Plan B");
1192 if (!run_program_and_log_output("mount /boot", 5)) {
1193 strcpy(g_boot_mountpt, "/boot");
1194 log_msg(1, "Plan B worked");
1195 } else {
1196 log_msg(1,
1197 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1198 }
1199 }
1200 }
1201 mr_free(command);
1202 }
1203 }
1204 mr_free(tmp);
1205 log_msg(1, "Ended sub");
1206}
1207
1208
1209/**
1210 * If we mounted /boot earlier, unmount it.
1211 */
1212void unmount_boot_if_necessary()
1213{
1214 char *tmp = NULL;
1215
1216 log_msg(3, "starting");
1217 if (g_boot_mountpt[0]) {
1218 mr_asprintf(tmp, "umount %s", g_boot_mountpt);
1219 if (run_program_and_log_output(tmp, 5)) {
1220 log_it("WARNING - unable to unmount /boot");
1221 }
1222 mr_free(tmp);
1223 }
1224 log_msg(3, "leaving");
1225}
1226
1227
1228
1229/**
1230 * Write a line to a configuration file. Writes a line of the form,
1231 * @c label @c value.
1232 * @param config_file The file to write to. Usually @c mondorestore.cfg.
1233 * @param label What to call this bit of data you're writing.
1234 * @param value The bit of data you're writing.
1235 * @return 0 for success, 1 for failure.
1236 */
1237int write_cfg_var(char *config_file, char *label, char *value)
1238{
1239 /*@ buffers ***************************************************** */
1240 char *command = NULL;
1241 char *tempfile = NULL;
1242
1243
1244 /*@ end vars *************************************************** */
1245 assert_string_is_neither_NULL_nor_zerolength(config_file);
1246 assert_string_is_neither_NULL_nor_zerolength(label);
1247 assert(value != NULL);
1248 if (!does_file_exist(config_file)) {
1249 log_to_screen("(write_cfg_file) Cannot find %s config file", config_file);
1250 return (1);
1251 }
1252 mr_asprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1253 if (does_file_exist(config_file)) {
1254 mr_asprintf(command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1255 paranoid_system(command);
1256 mr_free(command);
1257 }
1258 mr_asprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1259 paranoid_system(command);
1260 mr_free(command);
1261
1262 mr_asprintf(command, "mv -f %s %s", tempfile, config_file);
1263 paranoid_system(command);
1264 mr_free(command);
1265 unlink(tempfile);
1266 mr_free(tempfile);
1267 return (0);
1268}
1269
1270
1271/**
1272 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1273 * information to the logfile.
1274 */
1275void standard_log_debug_msg(int debug_level, const char *szFile, const char *szFunction, int nLine, const char *fmt, ...) {
1276
1277 va_list args;
1278 static int depth = 0;
1279 FILE *fout;
1280
1281 if (depth > 5) {
1282 depth--;
1283 return;
1284 }
1285 depth++;
1286
1287 if (debug_level <= g_loglevel) {
1288 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1289 return;
1290 }
1291
1292 // add tabs to distinguish log levels
1293 if (debug_level > 0) {
1294 fprintf(fout, "DBG%d: ", debug_level);
1295 if (getpid() == g_main_pid)
1296 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1297 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1298 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1299 else
1300 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1301 } else {
1302 fprintf(fout, "INFO: ");
1303 }
1304 va_start(args, fmt);
1305 vfprintf(fout, fmt, args);
1306 va_end(args);
1307
1308 fprintf(fout, "\n");
1309 paranoid_fclose(fout);
1310 }
1311 depth--;
1312}
1313
1314/**
1315 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1316 */
1317void (*log_debug_msg) (int, const char *, const char *, int, const char *, ...) = standard_log_debug_msg;
1318
1319
1320/**
1321 * Allocate or free important globals, depending on @p mal.
1322 * @param mal If TRUE, malloc; if FALSE, free.
1323 */
1324void do_libmondo_global_strings_thing(int mal)
1325{
1326 if (mal) {
1327 malloc_string(g_boot_mountpt);
1328 malloc_string(g_mondo_home);
1329 malloc_string(g_serial_string);
1330 malloc_string(g_magicdev_command);
1331 } else {
1332 paranoid_free(g_boot_mountpt);
1333 paranoid_free(g_mondo_home);
1334 paranoid_free(g_magicdev_command);
1335
1336 mr_free(g_serial_string);
1337 }
1338}
1339
1340/**
1341 * Allocate important globals.
1342 * @see do_libmondo_global_strings_thing
1343 */
1344void malloc_libmondo_global_strings(void)
1345{
1346 do_libmondo_global_strings_thing(1);
1347}
1348
1349/**
1350 * Free important globals.
1351 * @see do_libmondo_global_strings_thing
1352 */
1353void free_libmondo_global_strings(void)
1354{
1355 do_libmondo_global_strings_thing(0);
1356}
1357
1358
1359
1360/**
1361 * Stop @c magicdev if it's running.
1362 * The command used to start it is saved in @p g_magicdev_command.
1363 */
1364void stop_magicdev_if_necessary()
1365{
1366 strcpy(g_magicdev_command, call_program_and_get_last_line_of_output("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1367 if (g_magicdev_command[0]) {
1368 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1369 paranoid_system("killall magicdev");
1370 }
1371}
1372
1373
1374/**
1375 * Restart magicdev if it was stopped.
1376 */
1377void restart_magicdev_if_necessary()
1378{
1379 char *tmp = NULL;
1380
1381 if (g_magicdev_command && g_magicdev_command[0]) {
1382 mr_asprintf(tmp, "%s &", g_magicdev_command);
1383 paranoid_system(tmp);
1384 mr_free(tmp);
1385 }
1386}
1387
1388/* @} - end of utilityGroup */
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