source: MondoRescue/branches/3.2/mondo/src/common/libmondo-tools.c@ 3268

Last change on this file since 3268 was 3268, checked in by Bruno Cornec, 10 years ago
  • Fix initialization of g_cd_recovery to avoid having it at TRUE inwillingly
  • Remove code in netfs case now handled in mindi (mr-net-get-config)
  • Property svn:keywords set to Id
File size: 39.0 KB
Line 
1/*
2 $Id: libmondo-tools.c 3268 2014-04-29 18:22:35Z 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 3268 2014-04-29 18:22:35Z 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 *hostname = NULL;
354 char *isofs_cmd = NULL;
355 char *ip_address = NULL;
356 int retval = 0;
357 char *colon;
358 char *cdr_exe = NULL;
359 char *tmp = NULL;
360 char *call_before_iso_user = NULL;
361 char *iso_dev = NULL;
362 char *iso_mnt = NULL;
363 char *iso_tmp = NULL;
364 char *iso_path = NULL;
365 char *cfg_fname = NULL;
366
367 assert(bkpinfo != NULL);
368
369 bkpinfo->optimal_set_size = (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) * 1024;
370
371 log_msg(1, "Post-param");
372 if (bkpinfo->backup_media_type == tape) {
373 if (whine_if_not_found("mt") == 1) {
374 fatal_error("Please install the mt command");
375 }
376 log_msg(1, "Tape");
377 if (bkpinfo->media_device == NULL) {
378 return(1);
379 }
380 mr_asprintf(tmp, "mt -f %s status", bkpinfo->media_device);
381 log_msg(1, "tmp = '%s'", tmp);
382 if (run_program_and_log_output(tmp, 3)) {
383 mr_free(tmp);
384 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.");
385 }
386 mr_free(tmp);
387 }
388 if (bkpinfo->backup_media_type == iso)
389 make_hole_for_dir(bkpinfo->isodir);
390
391 run_program_and_log_output("uname -a", 5);
392 run_program_and_log_output("cat /etc/*-release", 5);
393 run_program_and_log_output("cat /etc/*issue*", 5);
394#ifdef __FreeBSD__
395#else
396 run_program_and_log_output("cat /proc/cpuinfo", 5);
397 run_program_and_log_output
398 ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
399 5);
400#endif
401
402 if (bkpinfo->use_lzo) {
403 strcpy(bkpinfo->zip_exe, "lzop");
404 strcpy(bkpinfo->zip_suffix, "lzo");
405 } else if (bkpinfo->use_gzip) {
406 strcpy(bkpinfo->zip_exe, "gzip");
407 strcpy(bkpinfo->zip_suffix, "gz");
408 } else if (bkpinfo->use_lzma) {
409 strcpy(bkpinfo->zip_exe, "lzma");
410 strcpy(bkpinfo->zip_suffix, "lzma");
411 } else if (bkpinfo->compression_level != 0) {
412 strcpy(bkpinfo->zip_exe, "bzip2");
413 strcpy(bkpinfo->zip_suffix, "bz2");
414 } else {
415 bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
416 }
417
418// DVD
419
420 if (bkpinfo->backup_media_type == dvd) {
421 if (find_home_of_exe("growisofs")) {
422 mr_asprintf(cdr_exe, "growisofs");
423 } // unlikely to be used
424 else {
425 fatal_error("Please install growisofs.");
426 }
427 if (bkpinfo->nonbootable_backup) {
428 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
429 } else if
430#ifdef __FreeBSD__
431 (TRUE)
432#else
433 (bkpinfo->make_cd_use_lilo)
434#endif
435#ifdef __IA64__
436 {
437 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
438 }
439#else
440 {
441 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
442 }
443#endif
444 else {
445 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
446 }
447 if (bkpinfo->manual_cd_tray) {
448 fatal_error("Manual CD tray + DVD not supported yet.");
449 // -m isn't supported by growisofs, BTW...
450 } else {
451 sprintf(bkpinfo->call_make_iso, "%s %s -Z %s . 2>> _ERR_", mondo_mkisofs_sz, "", bkpinfo->media_device);
452 }
453 mr_free(mondo_mkisofs_sz);
454 if (getenv ("SUDO_COMMAND")) {
455 mr_asprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
456 if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
457 mr_free(command);
458 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
459 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
460 }
461 mr_free(command);
462 }
463 log_msg(2, "call_make_iso (DVD res) is ... %s", bkpinfo->call_make_iso);
464 } // end of DVD code
465
466// CD-R or CD-RW
467 if (bkpinfo->backup_media_type == cdrw
468 || bkpinfo->backup_media_type == cdr) {
469 if (!bkpinfo->manual_cd_tray) {
470 mr_asprintf(extra_cdrom_params, "-waiti ");
471 }
472 if (bkpinfo->backup_media_type == cdrw) {
473 mr_asprintf(extra_cdrom_params, "blank=fast ");
474 }
475 if (extra_cdrom_params == NULL) {
476 // If not initialized earlier, do it now
477 mr_asprintf(extra_cdrom_params, " ");
478 }
479 if (find_home_of_exe("cdrecord")) {
480 mr_asprintf(cdr_exe, "cdrecord");
481 } else if (find_home_of_exe("dvdrecord")) {
482 mr_asprintf(cdr_exe, "dvdrecord");
483 } else {
484 fatal_error("Please install either cdrecord or dvdrecord.");
485 }
486 if (find_home_of_exe("genisoimage")) {
487 mr_asprintf(isofs_cmd, "%s", MONDO_GENISOIMAGE_CMD);
488 } else {
489 mr_asprintf(isofs_cmd, "%s", MONDO_MKISOFS_CMD);
490 }
491 if (bkpinfo->nonbootable_backup) {
492 mr_asprintf(mondo_mkisofs_sz, "%s%s", isofs_cmd, MONDO_MKISOFS);
493 } else if
494#ifdef __FreeBSD__
495 (TRUE)
496#else
497 (bkpinfo->make_cd_use_lilo)
498#endif
499#ifdef __IA64__
500 {
501 mr_asprintf(mondo_mkisofs_sz, "%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_ELILO);
502 }
503#else
504 {
505 mr_asprintf(mondo_mkisofs_sz, "%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_LILO);
506 }
507#endif
508 else
509 {
510 mr_asprintf(mondo_mkisofs_sz, "%s%s -V _CD#_", isofs_cmd, MONDO_MKISOFS_REGULAR_SYSLINUX);
511 }
512 mr_free(isofs_cmd);
513
514 if (bkpinfo->manual_cd_tray) {
515 if (bkpinfo->call_before_iso[0] == '\0') {
516 sprintf(bkpinfo->call_before_iso, "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_", mondo_mkisofs_sz, bkpinfo->tmpdir);
517 } else {
518 mr_asprintf(call_before_iso_user, "%s", bkpinfo->call_before_iso);
519 sprintf(bkpinfo->call_before_iso, "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )", mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
520 mr_free(call_before_iso_user);
521 }
522 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
523 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);
524 } else {
525 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);
526 }
527 mr_free(cdr_exe);
528 mr_free(mondo_mkisofs_sz);
529 mr_free(extra_cdrom_params);
530 } // end of CD code
531
532 if (bkpinfo->backup_media_type == iso) {
533
534/* Patch by Conor Daly <conor.daly@met.ie>
535 * 23-june-2004
536 * Break up isodir into iso_mnt and iso_path
537 * These will be used along with iso-dev at restore time
538 * to locate the ISOs where ever they're mounted
539 */
540
541 log_it("isodir = %s", bkpinfo->isodir);
542 mr_asprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
543 log_it("command = %s", command);
544 mr_asprintf(iso_dev, "%s", call_program_and_get_last_line_of_output(command));
545 log_it("res of it = %s", iso_dev);
546 mr_asprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
547 write_one_liner_data_file(tmp, iso_dev);
548 mr_free(tmp);
549 mr_free(command);
550
551 mr_asprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
552 mr_free(iso_dev);
553
554 log_it("command = %s", command);
555 mr_asprintf(iso_mnt, "%s", call_program_and_get_last_line_of_output(command));
556 log_it("res of it = %s", iso_mnt);
557 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
558 write_one_liner_data_file(tmp, iso_mnt);
559 mr_free(tmp);
560 mr_free(command);
561
562 log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
563 mr_asprintf(iso_tmp, "%s", bkpinfo->isodir);
564 if (strlen(iso_tmp) < strlen(iso_mnt)) {
565 mr_asprintf(iso_path, "%s", "");
566 } else {
567 // If iso_mnt is only / then iso_path is the full dir
568 // (the formula bellow doesn't work in this case)
569 if (strcmp(iso_mnt, "/") == 0) {
570 mr_asprintf(iso_path, "%s", iso_tmp);
571 // else it's a part of iso_tmp
572 } else {
573 mr_asprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
574 }
575 }
576 mr_free(iso_mnt);
577 mr_free(iso_tmp);
578
579 mr_asprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
580 write_one_liner_data_file(tmp, iso_path);
581 mr_free(tmp);
582
583 log_it("isodir: %s", iso_path);
584 mr_free(iso_path);
585
586 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
587 write_one_liner_data_file(tmp, bkpinfo->prefix);
588 mr_free(tmp);
589
590 log_it("iso-prefix: %s", bkpinfo->prefix);
591
592/* End patch */
593 } // end of iso code
594
595 if (bkpinfo->backup_media_type == netfs) {
596 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
597 write_one_liner_data_file(tmp, bkpinfo->prefix);
598 mr_free(tmp);
599
600 if (bkpinfo->netfs_mount) {
601 mr_asprintf(tmp, "%s/NETFS-SERVER-MOUNT", bkpinfo->tmpdir);
602 write_one_liner_data_file(tmp, bkpinfo->netfs_mount);
603 mr_free(tmp);
604 } else {
605 log_it("netfs_mount is NULL");
606 retval++;
607 }
608 }
609
610 log_it("Finished processing incoming params");
611 if (retval) {
612 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
613 }
614 if (bkpinfo->include_paths == NULL) {
615 mr_asprintf(bkpinfo->include_paths, "/");
616 }
617 g_backup_media_type = bkpinfo->backup_media_type;
618 return (retval);
619}
620
621
622
623/**
624 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
625 * Seeds the random-number generator, loads important modules, checks the sanity
626 * of the user's Linux distribution, and deletes logfile.
627 * @param bkpinfo The backup information structure. Will be initialized.
628 * @return number of errors (0 for success)
629 */
630int pre_param_configuration()
631{
632 int res = 0;
633 char *tmp = NULL;
634
635 make_hole_for_dir(MNT_CDROM);
636 assert(bkpinfo != NULL);
637 srandom((unsigned long) (time(NULL)));
638 insmod_crucial_modules();
639 if (bkpinfo->disaster_recovery) {
640 if (!does_nonMS_partition_exist()) {
641 fatal_error("I am in disaster recovery mode\nPlease don't run mondoarchive.");
642 }
643 }
644
645 mr_asprintf(tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
646 run_program_and_log_output(tmp, FALSE);
647 paranoid_free(tmp);
648 if (find_and_store_mondoarchives_home(g_mondo_home)) {
649 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");
650 res++;
651 return (res);
652 }
653 res += some_basic_system_sanity_checks();
654 if (res) {
655 log_it("Your distribution did not pass Mondo's sanity test.");
656 }
657 g_current_media_number = 1;
658 bkpinfo->postnuke_tarball[0] = '\0';
659 return (res);
660}
661
662/* From busybox under GPLv2 */
663#ifndef HAVE_MKDTEMP
664/* This is now actually part of POSIX.1, but was only added in 2008 */
665char* mkdtemp(char *template)
666{
667 if (mktemp(template) == NULL || mkdir(template, 0700) != 0)
668 return NULL;
669 return template;
670}
671#endif
672
673void setup_tmpdir(char *path) {
674
675 char *tmp = NULL;
676 char *p = NULL;
677
678 if (bkpinfo->tmpdir[0] != '\0') {
679 /* purging a potential old tmpdir */
680 if (chdir("/tmp")) {
681 // FIXME
682 }
683 if (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL) {
684 log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
685 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->tmpdir);
686 } else {
687 log_it("Purging old tmpdir %s/mondo.tmp.*", bkpinfo->tmpdir);
688 mr_asprintf(tmp,"rm -Rf %s/mondo.tmp.*",bkpinfo->tmpdir);
689 }
690 paranoid_system(tmp);
691 mr_free(tmp);
692 }
693
694 /* Always take in account arg first, then env, then default */
695 if (path != NULL) {
696 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", path);
697 } else if (getenv("TMPDIR")) {
698 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
699 } else if (getenv("MRTMP")) {
700 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("MRTMP"));
701 } else {
702 mr_asprintf(tmp, "/tmp/mondo.tmp.XXXXXX");
703 }
704 p = mkdtemp(tmp);
705 if (p == NULL) {
706 printf("Failed to create global tmp directory %s for Mondo.",tmp);
707 mr_free(tmp);
708 finish(-1);
709 }
710 strcpy(bkpinfo->tmpdir,p);
711 mr_free(tmp);
712
713 log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
714
715 mr_asprintf(tmp, "mkdir -p %s/tmpfs", bkpinfo->tmpdir);
716 paranoid_system(tmp);
717 mr_free(tmp);
718}
719
720void setup_scratchdir(char *path) {
721
722 char *tmp = NULL;
723 char *p = NULL;
724
725 if (bkpinfo->scratchdir != NULL) {
726 /* purging a potential old scratchdir */
727 if (chdir("/tmp")) {
728 // FIXME
729 }
730 if (strstr(bkpinfo->scratchdir,"mondo.scratch.") != NULL) {
731 log_it("Purging old scratchdir %s", bkpinfo->scratchdir);
732 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->scratchdir);
733 } else {
734 log_it("Purging old scratchdir %s/mondo.scratch.*", bkpinfo->scratchdir);
735 mr_asprintf(tmp,"rm -Rf %s/mondo.scratch.*",bkpinfo->scratchdir);
736 }
737 paranoid_system(tmp);
738 mr_free(tmp);
739 }
740
741 /* Always take in account arg first, then env, then default */
742 if (path != NULL) {
743 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", path);
744 } else if (getenv("MRSCRATCH")) {
745 mr_asprintf(tmp, "%s/mondo.scratch.XXXXXX", getenv("MRSCRATCH"));
746 } else {
747 mr_asprintf(tmp, "/tmp/mondo.scratch.XXXXXX");
748 }
749 p = mkdtemp(tmp);
750 if (p == NULL) {
751 log_it("Failed to create global scratch directory %s for Mondo.",tmp);
752 finish(-1);
753 }
754 strcpy(bkpinfo->scratchdir,p);
755 log_it("bkpinfo->scratchdir is being set to %s", bkpinfo->scratchdir);
756 paranoid_free(tmp);
757
758 mr_asprintf(tmp, "mkdir -p %s", bkpinfo->scratchdir);
759 paranoid_system(tmp);
760 mr_free(tmp);
761}
762
763
764/**
765 * Reset all fields of the backup information structure to a sensible default.
766 * @param bkpinfo The @c bkpinfo to reset.
767 */
768void reset_bkpinfo()
769{
770 assert(bkpinfo != NULL);
771 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
772
773 bkpinfo->media_device[0] = '\0';
774 bkpinfo->media_size = -1;
775 bkpinfo->boot_loader = '\0';
776 bkpinfo->boot_device[0] = '\0';
777 bkpinfo->zip_exe[0] = '\0';
778 bkpinfo->zip_suffix[0] = '\0';
779 bkpinfo->image_devs[0] = '\0';
780 bkpinfo->compression_level = 3;
781 bkpinfo->use_lzo = FALSE;
782 bkpinfo->use_gzip = FALSE;
783 bkpinfo->use_lzma = FALSE;
784 bkpinfo->verify_data = FALSE;
785 bkpinfo->backup_data = FALSE;
786 bkpinfo->restore_data = FALSE;
787 bkpinfo->use_star = FALSE;
788 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
789
790 /* We need tmpdir as early as possible for further function calls */
791 bkpinfo->tmpdir[0] = '\0'; // Really setup after
792 bkpinfo->scratchdir[0] = '\0'; // Really setup after
793 setup_tmpdir(NULL);
794 setup_scratchdir(NULL);
795
796 bkpinfo->disaster_recovery = am_I_in_disaster_recovery_mode();
797 if (bkpinfo->disaster_recovery) {
798 strcpy(bkpinfo->isodir, "/");
799 } else {
800 strcpy(bkpinfo->isodir, MONDO_CACHE);
801 }
802 strcpy(bkpinfo->prefix, STD_PREFIX);
803 bkpinfo->optimal_set_size = 0;
804 bkpinfo->backup_media_type = none;
805 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
806 bkpinfo->exclude_paths = NULL;
807 bkpinfo->include_paths = NULL;
808 bkpinfo->exclude_devs = NULL;
809 bkpinfo->restore_path[0] = '\0';
810 bkpinfo->call_before_iso[0] = '\0';
811 bkpinfo->call_make_iso[0] = '\0';
812 bkpinfo->call_burn_iso[0] = '\0';
813 bkpinfo->call_after_iso[0] = '\0';
814 bkpinfo->kernel_path[0] = '\0';
815 bkpinfo->netfs_mount = NULL;
816 bkpinfo->netfs_proto = NULL;
817 bkpinfo->netfs_user = NULL;
818 bkpinfo->netfs_remote_dir = NULL;
819 bkpinfo->postnuke_tarball[0] = '\0';
820 bkpinfo->subdir = NULL;
821 bkpinfo->wipe_media_first = FALSE;
822 bkpinfo->differential = 0;
823 bkpinfo->please_dont_eject = FALSE;
824 bkpinfo->cdrw_speed = 0;
825 bkpinfo->manual_cd_tray = FALSE;
826 bkpinfo->nonbootable_backup = FALSE;
827 bkpinfo->make_cd_use_lilo = FALSE;
828 bkpinfo->use_obdr = FALSE;
829 bkpinfo->restore_mode = interactive;
830}
831
832
833/**
834 * Get the remaining free space (in MB) on @p partition.
835 * @param partition The partition to check free space on (either a device or a mountpoint).
836 * @return The free space on @p partition, in MB.
837 */
838long free_space_on_given_partition(char *partition)
839{
840 char *out_sz = NULL;
841 char *command = NULL;
842 long res;
843
844 assert_string_is_neither_NULL_nor_zerolength(partition);
845
846 mr_asprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
847 if (system(command)) {
848 mr_free(command);
849 return (-1);
850 } // partition does not exist
851 mr_free(command);
852
853 mr_asprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4", partition);
854 mr_asprintf(out_sz, "%s", call_program_and_get_last_line_of_output(command));
855 mr_free(command);
856
857 if (strlen(out_sz) == 0) {
858 mr_free(out_sz);
859 return (-1);
860 } // error within df, probably
861 res = atol(out_sz);
862 mr_free(out_sz);
863 return (res);
864}
865
866
867
868/**
869 * Check the user's system for sanity. Checks performed:
870 * - make sure user has enough RAM (32mb required, 64mb recommended)
871 * - make sure user has enough free space in @c /
872 * - check kernel for ramdisk support
873 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
874 * - make sure CD-ROM is unmounted
875 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
876 *
877 * @return number of problems with the user's setup (0 for success)
878 */
879int some_basic_system_sanity_checks()
880{
881
882 /*@ buffers ************ */
883 char *tmp = NULL;
884
885 /*@ int's *************** */
886 int retval = 0;
887
888 mvaddstr_and_log_it(g_currentY, 0, "Checking sanity of your Linux distribution");
889#ifndef __FreeBSD__
890 if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
891 && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
892 log_it("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
893 run_program_and_log_output("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
894 }
895 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
896 if (atol(tmp) < 35000) {
897 retval++;
898 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
899 }
900 if (atol(tmp) < 66000) {
901 log_to_screen("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
902 }
903 mr_free(tmp);
904#endif
905
906 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
907 retval++;
908 log_to_screen
909 ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
910 fatal_error
911 ("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. :)");
912 }
913#ifndef __FreeBSD__
914 if (run_program_and_log_output
915 ("grep ramdisk /proc/devices", FALSE)) {
916 /* Some SuSE have ramdisk as modules, so insert it first, then test again */
917 run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
918 if (run_program_and_log_output("grep ramdisk /proc/devices", FALSE)) {
919 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?")) {
920 // retval++;
921 log_to_screen("It looks as if your kernel lacks ramdisk and initrd support.");
922 log_to_screen("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
923 }
924 }
925 }
926#endif
927 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
928 if (system("which genisoimage > /dev/null 2> /dev/null")) {
929 retval += whine_if_not_found("mkisofs");
930 }
931 if (system("which wodim > /dev/null 2> /dev/null")) {
932 retval += whine_if_not_found("cdrecord");
933 }
934 retval += whine_if_not_found("bzip2");
935 retval += whine_if_not_found("gzip");
936 retval += whine_if_not_found("awk");
937 retval += whine_if_not_found("md5sum");
938 retval += whine_if_not_found("strings");
939 retval += whine_if_not_found("mindi");
940 retval += whine_if_not_found("buffer");
941
942 // abort if Windows partition but no ms-sys and parted
943 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
944 log_to_screen("I think you have a Windows 9x partition.");
945 retval += whine_if_not_found("parted");
946 }
947
948 if (!find_home_of_exe("cmp")) {
949 whine_if_not_found("cmp");
950 }
951 run_program_and_log_output("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
952 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("mount | grep -E \"cdr(om|w)\""));
953 if (strcmp("", tmp)) {
954 if (strstr(tmp, "autofs")) {
955 log_to_screen("Your CD-ROM is mounted via autofs. I therefore cannot tell");
956 log_to_screen("if a CD actually is inserted. If a CD is inserted, please");
957 log_to_screen("eject it. Thank you.");
958 log_it("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
959 } else
960 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
961 retval++;
962 mr_free(tmp);
963 fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
964 }
965 }
966 mr_free(tmp);
967
968 run_program_and_log_output("cat /etc/fstab", 5);
969#ifdef __FreeBSD__
970 run_program_and_log_output("vinum printconfig", 5);
971#else
972 run_program_and_log_output("cat /etc/raidtab", 5);
973#endif
974
975 if (run_program_and_log_output("mindi -V", 1)) {
976 log_to_screen("Could not ascertain mindi's version number.");
977 log_to_screen("You have not installed Mondo and/or Mindi properly.");
978 log_to_screen("Please uninstall and reinstall them both.");
979 fatal_error("Please reinstall Mondo and Mindi.");
980 }
981 mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
982 if (run_program_and_log_output(tmp, 5)) {
983 log_to_screen("%s failed for some reason.", tmp);
984 mr_free(tmp);
985 log_to_screen("Please run that command by hand and examine /var/log/mindi.log");
986 log_to_screen("for more information. Perhaps your /etc/fstab file is insane.");
987 log_to_screen("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
988 retval++;
989 }
990 mr_free(tmp);
991
992 if (!run_program_and_log_output("parted2fdisk -l 2>/dev/null | grep -i raid", 1) && !does_file_exist("/etc/raidtab")) {
993 log_to_screen("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
994 create_raidtab_from_mdstat(MDSTAT_FILE,"/etc/raidtab");
995 }
996
997 if (retval) {
998 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
999 } else {
1000 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1001 }
1002 return (retval);
1003}
1004
1005/**
1006 * Retrieve the line containing @p label from the config file.
1007 * @param config_file The file to read from, usually @c /tmp/mondorestore.cfg.
1008 * @param label What to read from the file.
1009 * @param value Where to put it.
1010 * @return 0 for success, 1 for failure.
1011 */
1012int read_cfg_var(char *config_file, char *label, char *value)
1013{
1014 /*@ buffer ****************************************************** */
1015 char *command = NULL;
1016
1017 /*@ end vars *************************************************** */
1018
1019 assert_string_is_neither_NULL_nor_zerolength(config_file);
1020 assert_string_is_neither_NULL_nor_zerolength(label);
1021 if (!does_file_exist(config_file)) {
1022 log_to_screen("(read_cfg_var) Cannot find %s config file", config_file);
1023 value[0] = '\0';
1024 return (1);
1025 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1026 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1027 return (0);
1028 } else {
1029 mr_asprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1030 strcpy(value, call_program_and_get_last_line_of_output(command));
1031 mr_free(command);
1032
1033 log_msg(4, "Configuration item %s is %s", label, value);
1034 if (strlen(value) == 0) {
1035 return (1);
1036 } else {
1037 return (0);
1038 }
1039 }
1040}
1041
1042
1043
1044/**
1045 * Remount @c supermount if it was unmounted earlier.
1046 */
1047void remount_supermounts_if_necessary()
1048{
1049 if (g_remount_cdrom_at_end) {
1050 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1051 }
1052 if (g_remount_floppy_at_end) {
1053 run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1054 }
1055}
1056
1057/**
1058 * Unmount @c supermount if it's mounted.
1059 */
1060void unmount_supermounts_if_necessary()
1061{
1062 if (run_program_and_log_output
1063 ("mount | grep cdrom | grep super", FALSE) == 0) {
1064 g_remount_cdrom_at_end = TRUE;
1065 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1066 }
1067 if (run_program_and_log_output
1068 ("mount | grep floppy | grep super", FALSE) == 0) {
1069 g_remount_floppy_at_end = TRUE;
1070 run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1071 }
1072}
1073
1074/**
1075 * Whether we had to stop autofs (if so, restart it at end).
1076 */
1077bool g_autofs_stopped = FALSE;
1078
1079/**
1080 * Path to the autofs initscript ("" if none exists).
1081 */
1082char g_autofs_exe[MAX_STR_LEN];
1083
1084/**
1085 * Autofs initscript in Xandros Linux distribution.
1086 */
1087#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1088
1089/**
1090 * Autofs initscript in most Linux distributions.
1091 */
1092#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1093
1094/**
1095 * If autofs is mounted, stop it (restart at end).
1096 */
1097void stop_autofs_if_necessary()
1098{
1099 char *tmp = NULL;
1100
1101 g_autofs_exe[0] = '\0';
1102 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1103 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1104 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1105 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1106 }
1107
1108 if (!g_autofs_exe[0]) {
1109 log_msg(3, "No autofs detected.");
1110 } else {
1111 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1112 // FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1113 mr_asprintf(tmp, "%s stop", g_autofs_exe);
1114 if (run_program_and_log_output(tmp, 2)) {
1115 log_it("Failed to stop autofs - I assume it wasn't running");
1116 } else {
1117 g_autofs_stopped = TRUE;
1118 log_it("Stopped autofs OK");
1119 }
1120 mr_free(tmp);
1121 }
1122}
1123
1124/**
1125 * If autofs was stopped earlier, restart it.
1126 */
1127void restart_autofs_if_necessary()
1128{
1129 char *tmp = NULL;
1130
1131 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1132 log_msg(3, "No autofs detected.");
1133 return;
1134 }
1135 mr_asprintf(tmp, "%s start", g_autofs_exe);
1136 if (run_program_and_log_output(tmp, 2)) {
1137 log_it("Failed to start autofs");
1138 } else {
1139 g_autofs_stopped = FALSE;
1140 log_it("Started autofs OK");
1141 }
1142 mr_free(tmp);
1143}
1144
1145
1146/**
1147 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1148 */
1149void mount_boot_if_necessary() {
1150 char *tmp = NULL;
1151 char *command = NULL;
1152
1153 log_msg(1, "Started sub");
1154 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1155 g_boot_mountpt[0] = '\0';
1156 log_msg(4, "Done. Great. Seeting command to something");
1157 mr_asprintf(command, "%s", "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1158 log_msg(4, "Cool. Command = '%s'", command);
1159 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
1160 mr_free(command);
1161
1162 log_msg(4, "tmp = '%s'", tmp);
1163 log_it("/boot is at %s according to /etc/fstab", tmp);
1164 mr_asprintf(command, "mount | grep -Ew '/boot'");
1165 mr_free(tmp);
1166
1167 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
1168 mr_free(command);
1169
1170 if (!strcmp(tmp,"")) {
1171 if ((strstr(tmp, "LABEL=") != NULL) || (strstr(tmp,"UUID=") != NULL)) {
1172 if (!run_program_and_log_output("mount /boot", 5)) {
1173 strcpy(g_boot_mountpt, "/boot");
1174 log_msg(1, "Mounted /boot");
1175 } else {
1176 log_it("...ignored cos it's a label or uuid :-)");
1177 }
1178 } else {
1179 mr_asprintf(command, "mount | grep -E '^%s'", tmp);
1180 log_msg(3, "command = %s", command);
1181 if (run_program_and_log_output(command, 5)) {
1182 strcpy(g_boot_mountpt, tmp);
1183 mr_free(tmp);
1184 log_it("%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1185
1186 mr_asprintf(tmp, "mount %s", g_boot_mountpt);
1187 if (run_program_and_log_output(tmp, 5)) {
1188 g_boot_mountpt[0] = '\0';
1189 log_msg(1, "Plan B");
1190 if (!run_program_and_log_output("mount /boot", 5)) {
1191 strcpy(g_boot_mountpt, "/boot");
1192 log_msg(1, "Plan B worked");
1193 } else {
1194 log_msg(1,
1195 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1196 }
1197 }
1198 }
1199 mr_free(command);
1200 }
1201 }
1202 mr_free(tmp);
1203 log_msg(1, "Ended sub");
1204}
1205
1206
1207/**
1208 * If we mounted /boot earlier, unmount it.
1209 */
1210void unmount_boot_if_necessary()
1211{
1212 char *tmp = NULL;
1213
1214 log_msg(3, "starting");
1215 if (g_boot_mountpt[0]) {
1216 mr_asprintf(tmp, "umount %s", g_boot_mountpt);
1217 if (run_program_and_log_output(tmp, 5)) {
1218 log_it("WARNING - unable to unmount /boot");
1219 }
1220 mr_free(tmp);
1221 }
1222 log_msg(3, "leaving");
1223}
1224
1225
1226
1227/**
1228 * Write a line to a configuration file. Writes a line of the form,
1229 * @c label @c value.
1230 * @param config_file The file to write to. Usually @c mondorestore.cfg.
1231 * @param label What to call this bit of data you're writing.
1232 * @param value The bit of data you're writing.
1233 * @return 0 for success, 1 for failure.
1234 */
1235int write_cfg_var(char *config_file, char *label, char *value)
1236{
1237 /*@ buffers ***************************************************** */
1238 char *command = NULL;
1239 char *tempfile = NULL;
1240
1241
1242 /*@ end vars *************************************************** */
1243 assert_string_is_neither_NULL_nor_zerolength(config_file);
1244 assert_string_is_neither_NULL_nor_zerolength(label);
1245 assert(value != NULL);
1246 if (!does_file_exist(config_file)) {
1247 log_to_screen("(write_cfg_file) Cannot find %s config file", config_file);
1248 return (1);
1249 }
1250 mr_asprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1251 if (does_file_exist(config_file)) {
1252 mr_asprintf(command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1253 paranoid_system(command);
1254 mr_free(command);
1255 }
1256 mr_asprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1257 paranoid_system(command);
1258 mr_free(command);
1259
1260 mr_asprintf(command, "mv -f %s %s", tempfile, config_file);
1261 paranoid_system(command);
1262 mr_free(command);
1263 unlink(tempfile);
1264 mr_free(tempfile);
1265 return (0);
1266}
1267
1268
1269/**
1270 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1271 * information to the logfile.
1272 */
1273void standard_log_debug_msg(int debug_level, const char *szFile, const char *szFunction, int nLine, const char *fmt, ...) {
1274
1275 va_list args;
1276 static int depth = 0;
1277 FILE *fout;
1278
1279 if (depth > 5) {
1280 depth--;
1281 return;
1282 }
1283 depth++;
1284
1285 if (debug_level <= g_loglevel) {
1286 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1287 return;
1288 }
1289
1290 // add tabs to distinguish log levels
1291 if (debug_level > 0) {
1292 fprintf(fout, "DBG%d: ", debug_level);
1293 if (getpid() == g_main_pid)
1294 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1295 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1296 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1297 else
1298 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1299 } else {
1300 fprintf(fout, "INFO: ");
1301 }
1302 va_start(args, fmt);
1303 vfprintf(fout, fmt, args);
1304 va_end(args);
1305
1306 fprintf(fout, "\n");
1307 paranoid_fclose(fout);
1308 }
1309 depth--;
1310}
1311
1312/**
1313 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1314 */
1315void (*log_debug_msg) (int, const char *, const char *, int, const char *, ...) = standard_log_debug_msg;
1316
1317
1318/**
1319 * Allocate or free important globals, depending on @p mal.
1320 * @param mal If TRUE, malloc; if FALSE, free.
1321 */
1322void do_libmondo_global_strings_thing(int mal)
1323{
1324 if (mal) {
1325 malloc_string(g_boot_mountpt);
1326 malloc_string(g_mondo_home);
1327 malloc_string(g_serial_string);
1328 malloc_string(g_magicdev_command);
1329 } else {
1330 paranoid_free(g_boot_mountpt);
1331 paranoid_free(g_mondo_home);
1332 paranoid_free(g_magicdev_command);
1333
1334 mr_free(g_serial_string);
1335 }
1336}
1337
1338/**
1339 * Allocate important globals.
1340 * @see do_libmondo_global_strings_thing
1341 */
1342void malloc_libmondo_global_strings(void)
1343{
1344 do_libmondo_global_strings_thing(1);
1345}
1346
1347/**
1348 * Free important globals.
1349 * @see do_libmondo_global_strings_thing
1350 */
1351void free_libmondo_global_strings(void)
1352{
1353 do_libmondo_global_strings_thing(0);
1354}
1355
1356
1357
1358/**
1359 * Stop @c magicdev if it's running.
1360 * The command used to start it is saved in @p g_magicdev_command.
1361 */
1362void stop_magicdev_if_necessary()
1363{
1364 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"));
1365 if (g_magicdev_command[0]) {
1366 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1367 paranoid_system("killall magicdev");
1368 }
1369}
1370
1371
1372/**
1373 * Restart magicdev if it was stopped.
1374 */
1375void restart_magicdev_if_necessary()
1376{
1377 char *tmp = NULL;
1378
1379 if (g_magicdev_command && g_magicdev_command[0]) {
1380 mr_asprintf(tmp, "%s &", g_magicdev_command);
1381 paranoid_system(tmp);
1382 mr_free(tmp);
1383 }
1384}
1385
1386/* @} - end of utilityGroup */
Note: See TracBrowser for help on using the repository browser.