source: MondoRescue/branches/2.2.10/mondo/src/common/libmondo-tools.c@ 2327

Last change on this file since 2327 was 2327, checked in by Bruno Cornec, 15 years ago

r3338@localhost: bruno | 2009-08-11 23:03:30 +0200
bkpinfo->zip_suffix, bkpinfo->image_devs and bkpinfo->restore_path are now allocated dynmically
  • Property svn:keywords set to Id
File size: 39.5 KB
Line 
1/*
2 $Id: libmondo-tools.c 2327 2009-08-18 13:20:37Z 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 2327 2009-08-18 13:20:37Z bruno $";
30
31extern int g_tape_buffer_size_MB;
32extern bool g_text_mode;
33extern int g_currentY;
34extern int g_current_media_number;
35extern char *MONDO_LOGFILE;
36extern char *g_serial_string;
37
38/* Reference to global bkpinfo */
39extern struct s_bkpinfo *bkpinfo;
40
41/**
42 * @addtogroup globalGroup
43 * @{
44 */
45bool g_remount_cdrom_at_end, ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
46 g_remount_floppy_at_end; ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
47bool g_cd_recovery; ///< TRUE if we're making an "autonuke" backup.
48double g_kernel_version;
49
50/**
51 * The place where /boot is mounted.
52 */
53char *g_boot_mountpt = NULL;
54
55/**
56 * The location of Mondo's home directory.
57 */
58char *g_mondo_home = NULL;
59
60/**
61 * The location where tmpfs is mounted, or "" if it's not mounted.
62char *g_tmpfs_mountpt = NULL;
63 */
64char *g_magicdev_command = NULL;
65
66/**
67 * The default maximum level to log messages at or below.
68 */
69int g_loglevel = DEFAULT_DEBUG_LEVEL;
70
71/* @} - end of globalGroup */
72
73
74extern pid_t g_buffer_pid;
75extern pid_t g_main_pid;
76
77extern t_bkptype g_backup_media_type;
78
79extern bool am_I_in_disaster_recovery_mode(void);
80
81/*-----------------------------------------------------------*/
82
83
84/**
85 * @addtogroup utilityGroup
86 * @{
87 */
88/**
89 * Assertion handler. Prints a friendly message to the user,
90 * offering to ignore all, dump core, break to debugger,
91 * exit, or ignore. Intended to be used with an assert() macro.
92 *
93 * @param file The file in which the assertion triggered.
94 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
95 * @param line The line number of the assert() statement.
96 * @param exp The expression that failed (as a string).
97 */
98void _mondo_assert_fail(const char *file,
99 const char *function, int line, const char *exp)
100{
101 static int ignoring_assertions = 0;
102 bool is_valid = TRUE;
103
104 log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
105 function);
106 if (ignoring_assertions) {
107 log_it("Well, the user doesn't care...");
108 return;
109 }
110#ifndef _XWIN
111 if (!g_text_mode)
112 newtSuspend();
113#endif
114 printf("ASSERTION FAILED: `%s'\n", exp);
115 printf("\tat %s:%d in %s\n\n", file, line, function);
116 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
117 do {
118 is_valid = TRUE;
119 switch (toupper(getchar())) {
120 case 'A': // ignore (A)ll
121 ignoring_assertions = 1;
122 break;
123 case 'B': // a(B)ort
124 signal(SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
125 raise(SIGABRT);
126 break; /* "can't get here" */
127 case 'D': // (D)ebug, aka asm("int 3")
128#ifdef __IA32__
129 __asm__ __volatile__("int $3"); // break to debugger
130#endif
131 break;
132 case 'E': // (E)xit
133 fatal_error("Failed assertion -- see above for details");
134 break; /* "can't get here" */
135 case 'I': // (I)gnore
136 break;
137 /* These next two work as follows:
138 the `default' catches the user's invalid choice and says so;
139 the '\n' catches the newline on the end and prints the prompt again.
140 */
141 case '\n':
142 printf
143 ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
144 break;
145 default:
146 is_valid = FALSE;
147 printf("Invalid choice.\n");
148 break;
149 }
150 } while (!is_valid);
151
152 if (ignoring_assertions) {
153 log_it("Ignoring ALL assertions from now on.");
154 } else {
155 log_it("Ignoring assertion: %s", exp);
156 }
157
158 getchar(); // skip \n
159
160#ifndef _XWIN
161 if (!g_text_mode)
162 newtResume();
163#endif
164}
165
166/**
167 * Clean's up users' KDE desktops.
168 * @bug Details about this function are unknown.
169 */
170void clean_up_KDE_desktop_if_necessary(void)
171{
172 char *tmp;
173
174 malloc_string(tmp);
175 strcpy(tmp,
176 "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
177file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
178awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
179else { print $0;};}' $file.old > $file ; fi ; done");
180 run_program_and_log_output(tmp, 5);
181 paranoid_free(tmp);
182}
183
184
185/**
186 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
187 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
188 *
189 * @param home_sz String to store the home directory ("" if it could not be found).
190 * @return 0 for success, nonzero for failure.
191 */
192int find_and_store_mondoarchives_home(char *home_sz)
193{
194 assert(home_sz != NULL);
195 strcpy(home_sz, MONDO_SHARE);
196 return (0);
197}
198
199
200char *get_architecture(void) {
201#ifdef __IA32__
202# ifdef __X86_64__
203 return ("x86_64");
204# else
205 return ("i386");
206# endif
207#endif
208#ifdef __IA64__
209 return ("ia64");
210#endif
211 return ("unknown");
212}
213
214
215char *get_uname_m(void) {
216
217 struct utsname utsn;
218 char *tmp = NULL;
219
220 uname(&utsn);
221 mr_asprintf(tmp, "%s", utsn.machine);
222 return (tmp);
223}
224
225
226
227double get_kernel_version(void)
228{
229 char *p, tmp[200];
230 double d;
231#ifdef __FreeBSD__
232 // JOSH - FIXME :)
233 d = 5.2; // :-)
234#else
235 strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
236 p = strchr(tmp, '.');
237 if (p) {
238 p = strchr(++p, '.');
239 if (p) {
240 while (*p) {
241 *p = *(p + 1);
242 p++;
243 }
244 }
245 }
246// log_msg(1, "tmp = '%s'", tmp);
247 d = atof(tmp);
248#endif
249 log_msg(1, "g_kernel_version = %f", d);
250 return (d);
251}
252
253
254
255
256
257/**
258 * Get the current time.
259 * @return number of seconds since the epoch.
260 */
261long get_time()
262{
263 return (long) time((void *) 0);
264}
265
266
267
268
269
270
271
272/**
273 * Initialize a RAID volume structure, setting fields to zero. The
274 * actual hard drive is unaffected.
275 *
276 * @param raidrec The RAID volume structure to initialize.
277 * @note This function is system dependent.
278 */
279#ifdef __FreeBSD__
280void initialize_raidrec(struct vinum_volume *raidrec)
281{
282 int i, j;
283 raidrec->volname[0] = '\0';
284 raidrec->plexes = 0;
285 for (i = 0; i < 9; ++i) {
286 raidrec->plex[i].raidlevel = -1;
287 raidrec->plex[i].stripesize = 0;
288 raidrec->plex[i].subdisks = 0;
289 for (j = 0; j < 9; ++j) {
290 strcpy(raidrec->plex[i].sd[j].which_device, "");
291 }
292 }
293}
294#else
295void initialize_raidrec(struct raid_device_record *raidrec)
296{
297 assert(raidrec != NULL);
298 raidrec->raid_device[0] = '\0';
299 raidrec->raid_level = -9;
300 raidrec->persistent_superblock = 1;
301 raidrec->chunk_size = 64;
302 raidrec->parity = -1;
303 raidrec->data_disks.entries = 0;
304 raidrec->spare_disks.entries = 0;
305 raidrec->parity_disks.entries = 0;
306 raidrec->failed_disks.entries = 0;
307 raidrec->additional_vars.entries = 0;
308}
309#endif
310
311
312
313
314/**
315 * Insert modules that Mondo requires.
316 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
317 * @c msdosfs and @c ext2fs for FreeBSD.
318 */
319void insmod_crucial_modules(void)
320{
321#ifdef __FreeBSD__
322 system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
323 system("kldstat | grep ext2fs || kldload ext2fs 2> /dev/null");
324#else
325 system("modprobe -a msdos vfat loop &> /dev/null");
326#endif
327}
328
329
330/**
331 * Log a trace message to the trace file.
332 * @bug This function seems orphaned. Please remove.
333 */
334void log_trace(char *o)
335{
336 /*@ pointers **************************************************** */
337 FILE *fout;
338
339 /*@ buffers ***************************************************** */
340 char output[MAX_STR_LEN];
341
342 /*@ int ****************************************************** */
343 int i;
344
345 /*@ end vars *************************************************** */
346
347 if (o[0] == '\0') {
348 return;
349 }
350 strcpy(output, o);
351 i = (int) strlen(output);
352 if (i <= 0) {
353 return;
354 }
355 if (output[i - 1] < 32) {
356 output[i - 1] = '\0';
357 }
358 if (g_text_mode
359 /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
360 printf("%s\n", output);
361 }
362
363 fout = fopen(MONDO_TRACEFILE, "a");
364 if (fout) {
365 fprintf(fout, "%s\n", output);
366 paranoid_fclose(fout);
367 } else {
368 log_OS_error("Cannot write to tracefile");
369 }
370}
371
372
373
374
375
376/**
377 * Finish configuring the backup information structure. Call this function
378 * to set the parameters that depend on those that can be given on the command
379 * line.
380 *
381 * @param bkpinfo The backup information structure. Fields modified/used:
382 * - Used: @c bkpinfo->backup_data
383 * - Used: @c bkpinfo->backup_media_type
384 * - Used: @c bkpinfo->cdrw_speed
385 * - Used: @c bkpinfo->compression_level
386 * - Used: @c bkpinfo->include_paths
387 * - Used: @c bkpinfo->prefix
388 * - Used: @c bkpinfo->isodir
389 * - Used: @c bkpinfo->manual_cd_tray
390 * - Used: @c bkpinfo->make_cd_use_lilo
391 * - Used: @c bkpinfo->media_device
392 * - Used: @c bkpinfo->nfs_mount
393 * - Used: @c bkpinfo->nonbootable_backup
394 * - Used: @c bkpinfo->scratchdir
395 * - Used: @c bkpinfo->tmpdir
396 * - Used: @c bkpinfo->use_lzo
397 * - Modified: @c bkpinfo->call_before_iso
398 * - Modified: @c bkpinfo->call_make_iso
399 * - Modified: @c bkpinfo->optimal_set_size
400 * - Modified: @c bkpinfo->zip_exe
401 * - Modified: @c bkpinfo->zip_suffix
402 *
403 * @return number of errors, or 0 for success.
404 * @note Also creates directories that are specified in the @c bkpinfo structure but
405 * do not exist.
406 */
407int post_param_configuration()
408{
409 char *extra_cdrom_params = NULL;
410 char *mondo_mkisofs_sz = NULL;
411 char *command = NULL;
412 char *mtpt;
413 char *hostname;
414 char *ip_address = NULL;
415 int retval = 0;
416 char *colon;
417 char *cdr_exe;
418 char *tmp = NULL;
419 char *p = NULL;
420 char call_before_iso_user[MAX_STR_LEN] = "\0";
421 char *iso_dev = NULL;
422 char *iso_mnt = NULL;
423 char *iso_tmp = NULL;
424 char *iso_path = NULL;
425
426 assert(bkpinfo != NULL);
427
428 if (!bkpinfo->tmpdir) {
429 fatal_error("Tmpdir set to NULL !");
430 }
431
432 malloc_string(mtpt);
433 malloc_string(hostname);
434 malloc_string(cdr_exe);
435 bkpinfo->optimal_set_size =
436 (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
437 1024;
438
439 if (strlen(bkpinfo->tmpdir) < 2) {
440 log_it("tmpdir is blank/missing");
441 retval++;
442 }
443
444 log_msg(1, "Foo");
445 if (bkpinfo->backup_media_type == tape) {
446 log_msg(1, "Bar");
447 if (bkpinfo->media_device == NULL) {
448 return(1);
449 }
450 mr_asprintf(tmp, "mt -f %s status", bkpinfo->media_device);
451 log_msg(1, "tmp = '%s'", tmp);
452 if (run_program_and_log_output(tmp, 3)) {
453 mr_free(tmp);
454 fatal_error
455 ("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.");
456 }
457 mr_free(tmp);
458 }
459 if (bkpinfo->scratchdir) {
460 make_hole_for_dir(bkpinfo->scratchdir);
461 chmod(bkpinfo->scratchdir, 0700);
462 } else {
463 fatal_error("Scratchdir set to NULL !");
464 }
465 if (bkpinfo->backup_media_type == iso)
466 make_hole_for_dir(bkpinfo->isodir);
467
468 run_program_and_log_output("uname -a", 5);
469 run_program_and_log_output("cat /etc/*-release", 5);
470 run_program_and_log_output("cat /etc/*issue*", 5);
471#ifdef __FreeBSD__
472#else
473 run_program_and_log_output("cat /proc/cpuinfo", 5);
474 run_program_and_log_output
475 ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
476 5);
477#endif
478
479 if (bkpinfo->use_lzo) {
480 mr_asprintf(bkpinfo->zip_exe, "lzop");
481 mr_asprintf(bkpinfo->zip_suffix, "lzo");
482 } else if (bkpinfo->use_gzip) {
483 mr_asprintf(bkpinfo->zip_exe, "gzip");
484 mr_asprintf(bkpinfo->zip_suffix, "gz");
485 } else if (bkpinfo->compression_level != 0) {
486 mr_asprintf(bkpinfo->zip_exe, "bzip2");
487 mr_asprintf(bkpinfo->zip_suffix, "bz2");
488 } else {
489 mr_asprintf(bkpinfo->zip_exe, "none");
490 mr_asprintf(bkpinfo->zip_suffix, "");
491 }
492
493// DVD
494
495 if (bkpinfo->backup_media_type == dvd) {
496 if (find_home_of_exe("growisofs")) {
497 strcpy(cdr_exe, "growisofs");
498 } // unlikely to be used
499 else {
500 fatal_error("Please install growisofs.");
501 }
502 if (bkpinfo->nonbootable_backup) {
503 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
504 } else if
505#ifdef __FreeBSD__
506 (TRUE)
507#else
508 (bkpinfo->make_cd_use_lilo)
509#endif
510#ifdef __IA64__
511 {
512 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
513 }
514#else
515 {
516 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
517 }
518#endif
519 else
520 {
521 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
522 }
523 if (bkpinfo->manual_cd_tray) {
524 paranoid_free(mondo_mkisofs_sz);
525 fatal_error("Manual CD tray + DVD not supported yet.");
526 // -m isn't supported by growisofs, BTW...
527 } else {
528 if (bkpinfo->media_device == NULL) {
529 return(1);
530 }
531 sprintf(bkpinfo->call_make_iso,
532 "%s %s -Z %s . 2>> _ERR_",
533 mondo_mkisofs_sz,
534 "", bkpinfo->media_device);
535 paranoid_free(mondo_mkisofs_sz);
536 }
537 if (getenv ("SUDO_COMMAND")) {
538 mr_asprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
539 if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
540 mr_free(command);
541 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
542 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
543 }
544 mr_free(command);
545 }
546 log_msg(2, "call_make_iso (DVD res) is ... %s",
547 bkpinfo->call_make_iso);
548 } // end of DVD code
549
550// CD-R or CD-RW
551 if (bkpinfo->backup_media_type == cdrw
552 || bkpinfo->backup_media_type == cdr) {
553 if (!bkpinfo->manual_cd_tray) {
554 mr_asprintf(extra_cdrom_params, "-waiti ");
555 }
556 if (bkpinfo->backup_media_type == cdrw) {
557 mr_asprintf(extra_cdrom_params, "blank=fast ");
558 }
559 if (find_home_of_exe("cdrecord")) {
560 strcpy(cdr_exe, "cdrecord");
561 } else if (find_home_of_exe("dvdrecord")) {
562 strcpy(cdr_exe, "dvdrecord");
563 } else {
564 fatal_error("Please install either cdrecord or dvdrecord.");
565 }
566 if (bkpinfo->nonbootable_backup) {
567 mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
568 } else if
569#ifdef __FreeBSD__
570 (TRUE)
571#else
572 (bkpinfo->make_cd_use_lilo)
573#endif
574#ifdef __IA64__
575 {
576 mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
577 }
578#else
579 {
580 mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
581 }
582#endif
583 else
584 {
585 mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
586 }
587 if (bkpinfo->manual_cd_tray) {
588 if (bkpinfo->call_before_iso[0] == '\0') {
589 sprintf(bkpinfo->call_before_iso,
590 "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_",
591 mondo_mkisofs_sz, bkpinfo->tmpdir);
592 } else {
593 strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
594 sprintf (bkpinfo->call_before_iso,
595 "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )",
596 mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
597 }
598 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
599 if (bkpinfo->media_device == NULL) {
600 return(1);
601 }
602 sprintf(bkpinfo->call_make_iso,
603 "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS,
604 cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
605 extra_cdrom_params, bkpinfo->media_device,
606 bkpinfo->cdrw_speed, bkpinfo->tmpdir);
607 } else {
608 sprintf(bkpinfo->call_make_iso,
609 "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
610 mondo_mkisofs_sz, cdr_exe,
611 (bkpinfo->please_dont_eject) ? " " : "-eject",
612 extra_cdrom_params, bkpinfo->media_device,
613 bkpinfo->cdrw_speed);
614 }
615 paranoid_free(mondo_mkisofs_sz);
616 paranoid_free(extra_cdrom_params);
617 } // end of CD code
618
619 if (bkpinfo->backup_media_type == iso) {
620
621/* Patch by Conor Daly <conor.daly@met.ie>
622 * 23-june-2004
623 * Break up isodir into iso_mnt and iso_path
624 * These will be used along with iso-dev at restore time
625 * to locate the ISOs where ever they're mounted
626 */
627
628 log_it("isodir = %s", bkpinfo->isodir);
629 mr_asprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
630 log_it("command = %s", command);
631 log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
632 mr_asprintf(iso_dev, "%s", call_program_and_get_last_line_of_output(command));
633 mr_asprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
634 write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
635 mr_free(tmp);
636 mr_free(command);
637
638 mr_asprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
639 mr_free(iso_dev);
640
641 log_it("command = %s", command);
642 log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
643 mr_asprintf(iso_mnt, "%s", call_program_and_get_last_line_of_output(command));
644 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
645 write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
646 mr_free(tmp);
647 mr_free(command);
648
649 log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
650 mr_asprintf(iso_tmp, "%s", bkpinfo->isodir);
651 if (strlen(iso_tmp) < strlen(iso_mnt)) {
652 mr_asprintf(iso_path, "%s", "");
653 } else {
654 mr_asprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
655 }
656 mr_free(iso_tmp);
657
658 mr_asprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
659 write_one_liner_data_file(tmp, iso_path);
660 mr_free(tmp);
661
662 log_it("isodir: %s", iso_path);
663 mr_free(iso_path);
664
665 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
666 write_one_liner_data_file(tmp, bkpinfo->prefix);
667 mr_free(tmp);
668
669 log_it("iso-prefix: %s", bkpinfo->prefix);
670
671/* End patch */
672 } // end of iso code
673
674 if (bkpinfo->backup_media_type == nfs) {
675 if (bkpinfo->nfs_mount) {
676 strcpy(hostname, bkpinfo->nfs_mount);
677 } else {
678 log_it("nfs_mount is NULL");
679 retval++;
680 strcpy(hostname, "");
681 }
682 colon = strchr(hostname, ':');
683 if (!colon) {
684 log_it("nfs mount doesn't have a colon in it");
685 retval++;
686 } else {
687 struct hostent *hent;
688
689 *colon = '\0';
690 hent = gethostbyname(hostname);
691 if (!hent) {
692 log_it("Can't resolve NFS mount (%s): %s", hostname, hstrerror(h_errno));
693 retval++;
694 } else {
695 mr_asprintf(ip_address, "%s", inet_ntoa((struct in_addr) *((struct in_addr *) hent->h_addr)));
696 mr_strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
697 mr_free(bkpinfo->nfs_mount);
698 bkpinfo->nfs_mount = ip_address;
699 }
700 }
701 store_nfs_config();
702 }
703
704 log_it("Finished processing incoming params");
705 if (retval) {
706 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
707 }
708 if (bkpinfo->include_paths == NULL) {
709 mr_asprintf(p, "/");
710 bkpinfo->include_paths = p;
711 }
712 g_backup_media_type = bkpinfo->backup_media_type;
713 paranoid_free(mtpt);
714 paranoid_free(hostname);
715 paranoid_free(cdr_exe);
716 return (retval);
717}
718
719
720
721/**
722 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
723 * Seeds the random-number generator, loads important modules, checks the sanity
724 * of the user's Linux distribution, and deletes logfile.
725 * @param bkpinfo The backup information structure. Will be initialized.
726 * @return number of errors (0 for success)
727 */
728int pre_param_configuration()
729{
730 int res = 0;
731 char *tmp = NULL;
732
733 make_hole_for_dir(MNT_CDROM);
734 assert(bkpinfo != NULL);
735 srandom((unsigned long) (time(NULL)));
736 insmod_crucial_modules();
737 if (bkpinfo->disaster_recovery) {
738 if (!does_nonMS_partition_exist()) {
739 fatal_error
740 ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
741 }
742 }
743
744 unlink(MONDO_TRACEFILE);
745 mr_asprintf(tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
746 run_program_and_log_output(tmp, FALSE);
747 paranoid_free(tmp);
748 if (find_and_store_mondoarchives_home(g_mondo_home)) {
749 fprintf(stderr,
750 "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");
751 res++;
752 return (res);
753 }
754 res += some_basic_system_sanity_checks();
755 if (res) {
756 log_it("Your distribution did not pass Mondo's sanity test.");
757 }
758 g_current_media_number = 1;
759 bkpinfo->postnuke_tarball[0] = '\0';
760 return (res);
761}
762
763void setup_tmpdir(char *path) {
764
765 char *tmp = NULL;
766 char *p = NULL;
767
768 if ((bkpinfo->tmpdir != NULL) && (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL)) {
769 /* purging a potential old tmpdir */
770 log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
771 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->tmpdir);
772 mr_free(bkpinfo->tmpdir);
773 (void)system(tmp);
774 mr_free(tmp);
775 }
776
777 if (path != NULL) {
778 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", path);
779 } else if (getenv("TMPDIR")) {
780 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
781 } else if (getenv("TMP")) {
782 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
783 } else {
784 mr_asprintf(tmp, "/tmp/mondo.tmp.XXXXXX");
785 }
786 p = mkdtemp(tmp);
787 if (p == NULL) {
788 log_it("Failed to create global tmp directory %s for Mondo.",tmp);
789 mr_free(tmp);
790 finish(-1);
791 }
792
793 bkpinfo->tmpdir = p;
794 log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
795}
796
797/* Free all memory allocated into bkpinfo */
798void mr_free_bkpinfo() {
799
800 mr_free(bkpinfo->media_device);
801 mr_free(bkpinfo->boot_device);
802 mr_free(bkpinfo->zip_exe);
803 mr_free(bkpinfo->zip_suffix);
804 mr_free(bkpinfo->image_devs);
805 mr_free(bkpinfo->isodir);
806 mr_free(bkpinfo->prefix);
807 mr_free(bkpinfo->scratchdir);
808 mr_free(bkpinfo->tmpdir);
809 mr_free(bkpinfo->include_paths);
810 mr_free(bkpinfo->exclude_paths);
811 mr_free(bkpinfo->restore_path);
812 mr_free(bkpinfo->nfs_mount);
813 mr_free(bkpinfo->nfs_remote_dir);
814 mr_free(bkpinfo->nfs_user);
815
816 /* Then free the structure */
817 mr_free(bkpinfo);
818}
819
820/**
821 * Reset all fields of the backup information structure to a sensible default.
822 * @param bkpinfo The @c bkpinfo to reset.
823 */
824void init_bkpinfo()
825{
826 int i;
827 log_msg(1, "Hi");
828
829 /* Initialized in same order as in the structure declaration to detect errors more easily */
830 bkpinfo->media_device = NULL;
831 for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
832 bkpinfo->media_size[i] = -1;
833 }
834 bkpinfo->boot_loader = '\0';
835 bkpinfo->boot_device = NULL;
836 bkpinfo->zip_exe = NULL;
837 bkpinfo->zip_suffix = NULL;
838 bkpinfo->image_devs = NULL;
839 bkpinfo->compression_level = 3;
840 bkpinfo->use_lzo = FALSE;
841 bkpinfo->use_gzip = FALSE;
842 bkpinfo->verify_data = FALSE;
843 bkpinfo->backup_data = FALSE;
844 bkpinfo->restore_data = FALSE;
845 bkpinfo->use_star = FALSE;
846 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
847 bkpinfo->disaster_recovery = (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
848 if (bkpinfo->disaster_recovery) {
849 mr_asprintf(bkpinfo->isodir, "%s", "/");
850 } else {
851 mr_asprintf(bkpinfo->isodir, "%s", MONDO_CACHE);
852 }
853 mr_asprintf(bkpinfo->prefix, "%s", STD_PREFIX);
854 bkpinfo->scratchdir = NULL; // Really setup after
855 bkpinfo->tmpdir = NULL; // Really setup after
856 bkpinfo->optimal_set_size = 0;
857 bkpinfo->backup_media_type = none;
858 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
859 bkpinfo->include_paths = NULL;
860 bkpinfo->exclude_paths = NULL;
861 bkpinfo->restore_path = NULL;
862 bkpinfo->call_before_iso[0] = '\0';
863 bkpinfo->call_make_iso[0] = '\0';
864 bkpinfo->call_burn_iso[0] = '\0';
865 bkpinfo->call_after_iso[0] = '\0';
866 bkpinfo->kernel_path[0] = '\0';
867 bkpinfo->nfs_mount = NULL;
868 bkpinfo->nfs_remote_dir = NULL;
869 bkpinfo->nfs_user = NULL;
870 bkpinfo->postnuke_tarball[0] = '\0';
871 bkpinfo->wipe_media_first = FALSE;
872 bkpinfo->differential = 0;
873 bkpinfo->please_dont_eject = FALSE;
874 bkpinfo->cdrw_speed = 0;
875 bkpinfo->manual_cd_tray = FALSE;
876 bkpinfo->nonbootable_backup = FALSE;
877 bkpinfo->make_cd_use_lilo = FALSE;
878 bkpinfo->use_obdr = FALSE;
879 bkpinfo->restore_mode = interactive;
880
881 setup_tmpdir(NULL);
882 sensibly_set_scratchdir();
883}
884
885
886
887
888/**
889 * Get the remaining free space (in MB) on @p partition.
890 * @param partition The partition to check free space on (either a device or a mountpoint).
891 * @return The free space on @p partition, in MB.
892 */
893long free_space_on_given_partition(char *partition)
894{
895 char *out_sz = NULL;
896 char *command = NULL;
897 long res;
898
899 assert_string_is_neither_NULL_nor_zerolength(partition);
900
901 mr_asprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
902 if (system(command)) {
903 mr_free(command);
904 return (-1);
905 } // partition does not exist
906 mr_free(command);
907
908 mr_asprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4", partition);
909 mr_asprintf(out_sz, "%s", call_program_and_get_last_line_of_output(command));
910 mr_free(command);
911
912 if (strlen(out_sz) == 0) {
913 mr_free(out_sz);
914 return (-1);
915 } // error within df, probably
916 res = atol(out_sz);
917 mr_free(out_sz);
918 return (res);
919}
920
921
922
923/**
924 * Check the user's system for sanity. Checks performed:
925 * - make sure user has enough RAM (32mb required, 64mb recommended)
926 * - make sure user has enough free space in @c /
927 * - check kernel for ramdisk support
928 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
929 * - make sure CD-ROM is unmounted
930 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
931 *
932 * @return number of problems with the user's setup (0 for success)
933 */
934int some_basic_system_sanity_checks()
935{
936
937 /*@ buffers ************ */
938 char *tmp = NULL;
939
940 /*@ int's *************** */
941 int retval = 0;
942
943 mvaddstr_and_log_it(g_currentY, 0,
944 "Checking sanity of your Linux distribution");
945#ifndef __FreeBSD__
946 if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
947 && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
948 log_it
949 ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
950 run_program_and_log_output
951 ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
952 }
953 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
954 if (atol(tmp) < 35000) {
955 retval++;
956 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
957 }
958 if (atol(tmp) < 66000) {
959 log_to_screen("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
960 }
961 mr_free(tmp);
962#endif
963
964 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
965 retval++;
966 log_to_screen
967 ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
968 fatal_error
969 ("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. :)");
970 }
971#ifndef __FreeBSD__
972 if (run_program_and_log_output
973 ("grep ramdisk /proc/devices", FALSE)) {
974 /* Some SuSE have ramdisk as modules, so insert it first, then test again */
975 run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
976 if (run_program_and_log_output
977 ("grep ramdisk /proc/devices", FALSE)) {
978 if (!ask_me_yes_or_no
979 ("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?"))
980 {
981 // retval++;
982 log_to_screen
983 ("It looks as if your kernel lacks ramdisk and initrd support.");
984 log_to_screen
985 ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
986 }
987 }
988 }
989#endif
990 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
991 retval += whine_if_not_found("mkisofs");
992 if (system("which dvdrecord > /dev/null 2> /dev/null")) {
993 retval += whine_if_not_found("cdrecord");
994 }
995 retval += whine_if_not_found("bzip2");
996 retval += whine_if_not_found("gzip");
997 retval += whine_if_not_found("awk");
998 retval += whine_if_not_found("md5sum");
999 retval += whine_if_not_found("strings");
1000 retval += whine_if_not_found("mindi");
1001 retval += whine_if_not_found("buffer");
1002
1003 // abort if Windows partition but no ms-sys and parted
1004 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
1005 log_to_screen("I think you have a Windows 9x partition.");
1006 retval += whine_if_not_found("parted");
1007 }
1008
1009 if (!find_home_of_exe("cmp")) {
1010 if (!find_home_of_exe("true")) {
1011 whine_if_not_found("cmp");
1012 } else {
1013 log_to_screen
1014 ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1015 if (run_program_and_log_output
1016 ("cp -f `which true` /usr/bin/cmp", 0)) {
1017 fatal_error("Failed to create dummy 'cmp' file.");
1018 }
1019 }
1020 }
1021 run_program_and_log_output
1022 ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1023 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("mount | grep -E \"cdr(om|w)\""));
1024 if (strcmp("", tmp)) {
1025 if (strstr(tmp, "autofs")) {
1026 log_to_screen
1027 ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1028 log_to_screen
1029 ("if a CD actually is inserted. If a CD is inserted, please");
1030 log_to_screen("eject it. Thank you.");
1031 log_it
1032 ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1033 } else
1034 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1035 retval++;
1036 mr_free(tmp);
1037 fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
1038 }
1039 }
1040 mr_free(tmp);
1041
1042 run_program_and_log_output("cat /etc/fstab", 5);
1043#ifdef __FreeBSD__
1044 run_program_and_log_output("vinum printconfig", 5);
1045#else
1046 run_program_and_log_output("cat /etc/raidtab", 5);
1047#endif
1048
1049 if (run_program_and_log_output("mindi -V", 1)) {
1050 log_to_screen("Could not ascertain mindi's version number.");
1051 log_to_screen
1052 ("You have not installed Mondo and/or Mindi properly.");
1053 log_to_screen("Please uninstall and reinstall them both.");
1054 fatal_error("Please reinstall Mondo and Mindi.");
1055 }
1056 mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1057 if (run_program_and_log_output(tmp, 5)) {
1058 mr_free(tmp);
1059 mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1060 log_to_screen(tmp);
1061 log_to_screen
1062 ("Please run that command by hand and examine /var/log/mindi.log");
1063 log_to_screen
1064 ("for more information. Perhaps your /etc/fstab file is insane.");
1065 log_to_screen
1066 ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1067 retval++;
1068 }
1069 mr_free(tmp);
1070
1071 if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1072 && !does_file_exist("/etc/raidtab")) {
1073 log_to_screen
1074 ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1075 create_raidtab_from_mdstat("/etc/raidtab");
1076 }
1077
1078 if (retval) {
1079 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1080 } else {
1081 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1082 }
1083 return (retval);
1084}
1085
1086/**
1087 * Retrieve the line containing @p label from the config file.
1088 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1089 * @param label What to read from the file.
1090 * @param value Where to put it.
1091 * @return 0 for success, 1 for failure.
1092 */
1093char *read_cfg_var(char *config_file, char *label)
1094{
1095 /*@ buffer ****************************************************** */
1096 char *command = NULL;
1097 char *value = NULL;
1098
1099 /*@ end vars *************************************************** */
1100
1101 assert_string_is_neither_NULL_nor_zerolength(config_file);
1102 assert_string_is_neither_NULL_nor_zerolength(label);
1103 if (!does_file_exist(config_file)) {
1104 log_to_screen("(read_cfg_var) Cannot find %s config file", config_file);
1105 return (NULL);
1106 /* BERLIOS: not sure the sage of this one ?
1107 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1108 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1109 return (0);
1110 */
1111 } else {
1112 mr_asprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1113 mr_asprintf(value, "%s", call_program_and_get_last_line_of_output(command));
1114 mr_free(command);
1115
1116 if (strlen(value) == 0) {
1117 return (NULL);
1118 } else {
1119 return (value);
1120 }
1121 }
1122}
1123
1124
1125
1126/**
1127 * Remount @c supermount if it was unmounted earlier.
1128 */
1129void remount_supermounts_if_necessary()
1130{
1131 if (g_remount_cdrom_at_end) {
1132 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1133 }
1134 if (g_remount_floppy_at_end) {
1135 run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1136 }
1137}
1138
1139/**
1140 * Unmount @c supermount if it's mounted.
1141 */
1142void unmount_supermounts_if_necessary()
1143{
1144 if (run_program_and_log_output
1145 ("mount | grep cdrom | grep super", FALSE) == 0) {
1146 g_remount_cdrom_at_end = TRUE;
1147 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1148 }
1149 if (run_program_and_log_output
1150 ("mount | grep floppy | grep super", FALSE) == 0) {
1151 g_remount_floppy_at_end = TRUE;
1152 run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1153 }
1154}
1155
1156/**
1157 * Whether we had to stop autofs (if so, restart it at end).
1158 */
1159bool g_autofs_stopped = FALSE;
1160
1161/**
1162 * Path to the autofs initscript ("" if none exists).
1163 */
1164char g_autofs_exe[MAX_STR_LEN];
1165
1166/**
1167 * Autofs initscript in Xandros Linux distribution.
1168 */
1169#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1170
1171/**
1172 * Autofs initscript in most Linux distributions.
1173 */
1174#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1175
1176/**
1177 * If autofs is mounted, stop it (restart at end).
1178 */
1179void stop_autofs_if_necessary()
1180{
1181 char *tmp = NULL;
1182
1183 g_autofs_exe[0] = '\0';
1184 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1185 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1186 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1187 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1188 }
1189
1190 if (!g_autofs_exe[0]) {
1191 log_msg(3, "No autofs detected.");
1192 } else {
1193 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1194 // FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1195 mr_asprintf(tmp, "%s stop", g_autofs_exe);
1196 if (run_program_and_log_output(tmp, 2)) {
1197 log_it("Failed to stop autofs - I assume it wasn't running");
1198 } else {
1199 g_autofs_stopped = TRUE;
1200 log_it("Stopped autofs OK");
1201 }
1202 mr_free(tmp);
1203 }
1204}
1205
1206/**
1207 * If autofs was stopped earlier, restart it.
1208 */
1209void restart_autofs_if_necessary()
1210{
1211 char *tmp = NULL;
1212
1213 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1214 log_msg(3, "No autofs detected.");
1215 return;
1216 }
1217 mr_asprintf(tmp, "%s start", g_autofs_exe);
1218 if (run_program_and_log_output(tmp, 2)) {
1219 log_it("Failed to start autofs");
1220 } else {
1221 g_autofs_stopped = FALSE;
1222 log_it("Started autofs OK");
1223 }
1224 mr_free(tmp);
1225}
1226
1227
1228/**
1229 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1230 */
1231void mount_boot_if_necessary() {
1232 char *tmp = NULL;
1233 char *command = NULL;
1234
1235 log_msg(1, "Started sub");
1236 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1237 g_boot_mountpt[0] = '\0';
1238 log_msg(4, "Done. Great. Seeting command to something");
1239 mr_asprintf(command, "%s", "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1240 log_msg(4, "Cool. Command = '%s'", command);
1241 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
1242 mr_free(command);
1243
1244 log_msg(4, "tmp = '%s'", tmp);
1245 log_it("/boot is at %s according to /etc/fstab", tmp);
1246 mr_asprintf(command, "mount | grep -Ew '/boot'");
1247 mr_free(tmp);
1248 mr_asprintf(tmp, call_program_and_get_last_line_of_output(command));
1249 mr_free(command);
1250
1251 if (!strcmp(tmp,"")) {
1252 if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1253 if (!run_program_and_log_output("mount /boot", 5)) {
1254 strcpy(g_boot_mountpt, "/boot");
1255 log_msg(1, "Mounted /boot");
1256 } else {
1257 log_it("...ignored cos it's a label or uuid :-)");
1258 }
1259 } else {
1260 mr_asprintf(command, "mount | grep -E '^%s'", tmp);
1261 log_msg(3, "command = %s", command);
1262 if (run_program_and_log_output(command, 5)) {
1263 strcpy(g_boot_mountpt, tmp);
1264 mr_free(tmp);
1265 log_it("%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1266
1267 mr_asprintf(tmp, "mount %s", g_boot_mountpt);
1268 if (run_program_and_log_output(tmp, 5)) {
1269 g_boot_mountpt[0] = '\0';
1270 log_msg(1, "Plan B");
1271 if (!run_program_and_log_output("mount /boot", 5)) {
1272 strcpy(g_boot_mountpt, "/boot");
1273 log_msg(1, "Plan B worked");
1274 } else {
1275 log_msg(1,
1276 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1277 }
1278 }
1279 }
1280 mr_free(command);
1281 }
1282 }
1283 mr_free(tmp);
1284 log_msg(1, "Ended sub");
1285}
1286
1287
1288/**
1289 * If we mounted /boot earlier, unmount it.
1290 */
1291void unmount_boot_if_necessary()
1292{
1293 char *tmp = NULL;
1294
1295 log_msg(3, "starting");
1296 if (g_boot_mountpt[0]) {
1297 mr_asprintf(tmp, "umount %s", g_boot_mountpt);
1298 if (run_program_and_log_output(tmp, 5)) {
1299 log_it("WARNING - unable to unmount /boot");
1300 }
1301 mr_free(tmp);
1302 }
1303 log_msg(3, "leaving");
1304}
1305
1306
1307
1308/**
1309 * Write a line to a configuration file. Writes a line of the form,
1310 * @c label @c value.
1311 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1312 * @param label What to call this bit of data you're writing.
1313 * @param value The bit of data you're writing.
1314 * @return 0 for success, 1 for failure.
1315 */
1316int write_cfg_var(char *config_file, char *label, char *value)
1317{
1318 /*@ buffers ***************************************************** */
1319 char *command = NULL;
1320 char *tempfile = NULL;
1321
1322
1323 /*@ end vars *************************************************** */
1324 assert_string_is_neither_NULL_nor_zerolength(config_file);
1325 assert_string_is_neither_NULL_nor_zerolength(label);
1326 assert(value != NULL);
1327 if (!does_file_exist(config_file)) {
1328 log_to_screen("(write_cfg_file) Cannot find %s config file", config_file);
1329 return (1);
1330 }
1331 mr_asprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1332 if (does_file_exist(config_file)) {
1333 mr_asprintf(command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1334 paranoid_system(command);
1335 mr_free(command);
1336 }
1337 mr_asprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1338 paranoid_system(command);
1339 mr_free(command);
1340
1341 mr_asprintf(command, "mv -f %s %s", tempfile, config_file);
1342 paranoid_system(command);
1343 mr_free(command);
1344 unlink(tempfile);
1345 mr_free(tempfile);
1346 return (0);
1347}
1348
1349
1350/**
1351 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1352 * information to the logfile.
1353 */
1354void standard_log_debug_msg(int debug_level, const char *szFile,
1355 const char *szFunction, int nLine,
1356 const char *fmt, ...)
1357{
1358 va_list args;
1359 int i;
1360 static int depth = 0;
1361 FILE *fout;
1362
1363 if (depth > 5) {
1364 depth--;
1365 return;
1366 }
1367 depth++;
1368
1369 if (debug_level <= g_loglevel) {
1370 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1371 return;
1372 }
1373
1374 // add tabs to distinguish log levels
1375 if (debug_level > 0) {
1376 for (i = 1; i < debug_level; i++)
1377 fprintf(fout, "\t");
1378 if (getpid() == g_main_pid)
1379 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1380 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1381 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1382 else
1383 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1384 }
1385 va_start(args, fmt);
1386 vfprintf(fout, fmt, args);
1387 va_end(args);
1388
1389 // do not slow down the progran if standard debug level
1390 // must be enabled: if no flush, the log won't be up-to-date if there
1391 // is a segfault
1392 //if (g_dwDebugLevel != 1)
1393
1394 fprintf(fout, "\n");
1395 paranoid_fclose(fout);
1396 }
1397 depth--;
1398}
1399
1400/**
1401 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1402 */
1403void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1404 ...) = standard_log_debug_msg;
1405
1406
1407/**
1408 * Allocate or free important globals, depending on @p mal.
1409 * @param mal If TRUE, malloc; if FALSE, free.
1410 */
1411void do_libmondo_global_strings_thing(int mal)
1412{
1413 if (mal) {
1414 malloc_string(g_boot_mountpt);
1415 malloc_string(g_mondo_home);
1416 malloc_string(g_magicdev_command);
1417 } else {
1418 paranoid_free(g_boot_mountpt);
1419 paranoid_free(g_mondo_home);
1420 paranoid_free(g_magicdev_command);
1421
1422 mr_free(g_serial_string);
1423 }
1424}
1425
1426/**
1427 * Allocate important globals.
1428 * @see do_libmondo_global_strings_thing
1429 */
1430void malloc_libmondo_global_strings(void)
1431{
1432 do_libmondo_global_strings_thing(1);
1433}
1434
1435/**
1436 * Free important globals.
1437 * @see do_libmondo_global_strings_thing
1438 */
1439void free_libmondo_global_strings(void)
1440{
1441 do_libmondo_global_strings_thing(0);
1442}
1443
1444
1445
1446/**
1447 * Stop @c magicdev if it's running.
1448 * The command used to start it is saved in @p g_magicdev_command.
1449 */
1450void stop_magicdev_if_necessary()
1451{
1452 strcpy(g_magicdev_command,
1453 call_program_and_get_last_line_of_output
1454 ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1455 if (g_magicdev_command[0]) {
1456 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1457 paranoid_system("killall magicdev");
1458 }
1459}
1460
1461
1462/**
1463 * Restart magicdev if it was stopped.
1464 */
1465void restart_magicdev_if_necessary()
1466{
1467 char *tmp = NULL;
1468
1469 if (g_magicdev_command && g_magicdev_command[0]) {
1470 mr_asprintf(tmp, "%s &", g_magicdev_command);
1471 paranoid_system(tmp);
1472 mr_free(tmp);
1473 }
1474}
1475
1476/* @} - end of utilityGroup */
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