source: MondoRescue/branches/2.2.10/mondo/src/common/libmondo-tools.c@ 2383

Last change on this file since 2383 was 2383, checked in by Bruno Cornec, 15 years ago

call_program_and_get_last_line_of_output is now allocating memory and returning that string
  • Property svn:keywords set to Id
File size: 39.9 KB
Line 
1/*
2 $Id: libmondo-tools.c 2383 2009-09-10 00:55:51Z 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 2383 2009-09-10 00:55:51Z 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 if (!g_text_mode)
111 newtSuspend();
112 printf("ASSERTION FAILED: `%s'\n", exp);
113 printf("\tat %s:%d in %s\n\n", file, line, function);
114 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
115 do {
116 is_valid = TRUE;
117 switch (toupper(getchar())) {
118 case 'A': // ignore (A)ll
119 ignoring_assertions = 1;
120 break;
121 case 'B': // a(B)ort
122 signal(SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
123 raise(SIGABRT);
124 break; /* "can't get here" */
125 case 'D': // (D)ebug, aka asm("int 3")
126#ifdef __IA32__
127 __asm__ __volatile__("int $3"); // break to debugger
128#endif
129 break;
130 case 'E': // (E)xit
131 fatal_error("Failed assertion -- see above for details");
132 break; /* "can't get here" */
133 case 'I': // (I)gnore
134 break;
135 /* These next two work as follows:
136 the `default' catches the user's invalid choice and says so;
137 the '\n' catches the newline on the end and prints the prompt again.
138 */
139 case '\n':
140 printf
141 ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
142 break;
143 default:
144 is_valid = FALSE;
145 printf("Invalid choice.\n");
146 break;
147 }
148 } while (!is_valid);
149
150 if (ignoring_assertions) {
151 log_it("Ignoring ALL assertions from now on.");
152 } else {
153 log_it("Ignoring assertion: %s", exp);
154 }
155
156 getchar(); // skip \n
157
158 if (!g_text_mode)
159 newtResume();
160}
161
162/**
163 * Clean's up users' KDE desktops.
164 * @bug Details about this function are unknown.
165 */
166void clean_up_KDE_desktop_if_necessary(void)
167{
168 char *tmp = NULL;
169
170 mr_asprintf(tmp, "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do file=$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");
171 run_program_and_log_output(tmp, 5);
172 mr_free(tmp);
173}
174
175
176/**
177 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
178 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
179 *
180 * @param home_sz String to store the home directory ("" if it could not be found).
181 * @return 0 for success, nonzero for failure.
182 */
183int find_and_store_mondoarchives_home(char *home_sz)
184{
185 assert(home_sz != NULL);
186 strcpy(home_sz, MONDO_SHARE);
187 return (0);
188}
189
190
191char *get_architecture(void) {
192#ifdef __IA32__
193# ifdef __X86_64__
194 return ("x86_64");
195# else
196 return ("i386");
197# endif
198#endif
199#ifdef __IA64__
200 return ("ia64");
201#endif
202 return ("unknown");
203}
204
205
206char *get_uname_m(void) {
207
208 struct utsname utsn;
209 char *tmp = NULL;
210
211 uname(&utsn);
212 mr_asprintf(tmp, "%s", utsn.machine);
213 return (tmp);
214}
215
216
217
218double get_kernel_version(void)
219{
220 char *p = NULL;
221 char *tmp = NULL;
222 double d;
223#ifdef __FreeBSD__
224 // JOSH - FIXME :)
225 d = 5.2; // :-)
226#else
227 tmp = call_program_and_get_last_line_of_output("uname -r");
228 p = strchr(tmp, '.');
229 if (p) {
230 p = strchr(++p, '.');
231 if (p) {
232 while (*p) {
233 *p = *(p + 1);
234 p++;
235 }
236 }
237 }
238 d = atof(tmp);
239 mr_free(tmp);
240#endif
241 log_msg(1, "g_kernel_version = %f", d);
242 return (d);
243}
244
245
246/**
247 * Get the current time.
248 * @return number of seconds since the epoch.
249 */
250long get_time()
251{
252 return (long) time((void *) 0);
253}
254
255
256/**
257 * Initialize a RAID volume structure, setting fields to zero. The
258 * actual hard drive is unaffected.
259 *
260 * @param raidrec The RAID volume structure to initialize.
261 * @note This function is system dependent.
262 */
263#ifdef __FreeBSD__
264void initialize_raidrec(struct vinum_volume *raidrec)
265{
266 int i, j;
267 raidrec->volname[0] = '\0';
268 raidrec->plexes = 0;
269 for (i = 0; i < 9; ++i) {
270 raidrec->plex[i].raidlevel = -1;
271 raidrec->plex[i].stripesize = 0;
272 raidrec->plex[i].subdisks = 0;
273 for (j = 0; j < 9; ++j) {
274 strcpy(raidrec->plex[i].sd[j].which_device, "");
275 }
276 }
277}
278#else
279void initialize_raidrec(struct raid_device_record *raidrec)
280{
281 assert(raidrec != NULL);
282 raidrec->raid_device[0] = '\0';
283 raidrec->raid_level = -9;
284 raidrec->persistent_superblock = 1;
285 raidrec->chunk_size = 64;
286 raidrec->parity = -1;
287 raidrec->data_disks.entries = 0;
288 raidrec->spare_disks.entries = 0;
289 raidrec->parity_disks.entries = 0;
290 raidrec->failed_disks.entries = 0;
291 raidrec->additional_vars.entries = 0;
292}
293#endif
294
295
296
297
298/**
299 * Insert modules that Mondo requires.
300 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
301 * @c msdosfs and @c ext2fs for FreeBSD.
302 */
303void insmod_crucial_modules(void)
304{
305#ifdef __FreeBSD__
306 system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
307 system("kldstat | grep ext2fs || kldload ext2fs 2> /dev/null");
308#else
309 system("modprobe -a msdos vfat loop &> /dev/null");
310#endif
311}
312
313
314/**
315 * Log a trace message to the trace file.
316 * @bug This function seems orphaned. Please remove.
317 */
318void log_trace(char *o)
319{
320 /*@ pointers **************************************************** */
321 FILE *fout;
322
323 /*@ buffers ***************************************************** */
324 char output[MAX_STR_LEN];
325
326 /*@ int ****************************************************** */
327 int i;
328
329 /*@ end vars *************************************************** */
330
331 if (o[0] == '\0') {
332 return;
333 }
334 strcpy(output, o);
335 i = (int) strlen(output);
336 if (i <= 0) {
337 return;
338 }
339 if (output[i - 1] < 32) {
340 output[i - 1] = '\0';
341 }
342 if (g_text_mode) {
343 printf("%s\n", output);
344 }
345
346 fout = fopen(MONDO_TRACEFILE, "a");
347 if (fout) {
348 fprintf(fout, "%s\n", output);
349 paranoid_fclose(fout);
350 } else {
351 log_OS_error("Cannot write to tracefile");
352 }
353}
354
355
356
357
358
359/**
360 * Finish configuring the backup information structure. Call this function
361 * to set the parameters that depend on those that can be given on the command
362 * line.
363 *
364 * @param bkpinfo The backup information structure. Fields modified/used:
365 * - Used: @c bkpinfo->backup_data
366 * - Used: @c bkpinfo->backup_media_type
367 * - Used: @c bkpinfo->cdrw_speed
368 * - Used: @c bkpinfo->compression_level
369 * - Used: @c bkpinfo->include_paths
370 * - Used: @c bkpinfo->prefix
371 * - Used: @c bkpinfo->isodir
372 * - Used: @c bkpinfo->manual_cd_tray
373 * - Used: @c bkpinfo->make_cd_use_lilo
374 * - Used: @c bkpinfo->media_device
375 * - Used: @c bkpinfo->netfs_mount
376 * - Used: @c bkpinfo->nonbootable_backup
377 * - Used: @c bkpinfo->scratchdir
378 * - Used: @c bkpinfo->tmpdir
379 * - Used: @c bkpinfo->use_lzo
380 * - Modified: @c bkpinfo->call_before_iso
381 * - Modified: @c bkpinfo->call_make_iso
382 * - Modified: @c bkpinfo->optimal_set_size
383 * - Modified: @c bkpinfo->zip_exe
384 * - Modified: @c bkpinfo->zip_suffix
385 *
386 * @return number of errors, or 0 for success.
387 * @note Also creates directories that are specified in the @c bkpinfo structure but
388 * do not exist.
389 */
390int post_param_configuration()
391{
392 char *extra_cdrom_params = NULL;
393 char *mondo_mkisofs_sz = NULL;
394 char *command = NULL;
395 char *mtpt;
396 char *hostname = NULL;
397 char *ip_address = NULL;
398 int retval = 0;
399 char *colon;
400 char *cdr_exe = NULL;
401 char *tmp = NULL;
402 char *p = NULL;
403 char *call_before_iso_user = NULL;
404 char *iso_dev = NULL;
405 char *iso_mnt = NULL;
406 char *iso_tmp = NULL;
407 char *iso_path = NULL;
408
409 assert(bkpinfo != NULL);
410
411 if (!bkpinfo->tmpdir) {
412 fatal_error("Tmpdir set to NULL !");
413 }
414
415 malloc_string(mtpt);
416 bkpinfo->optimal_set_size =
417 (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
418 1024;
419
420 if (strlen(bkpinfo->tmpdir) < 2) {
421 log_it("tmpdir is blank/missing");
422 retval++;
423 }
424
425 log_msg(1, "Foo");
426 if (bkpinfo->backup_media_type == tape) {
427 log_msg(1, "Bar");
428 if (bkpinfo->media_device == NULL) {
429 return(1);
430 }
431 mr_asprintf(tmp, "mt -f %s status", bkpinfo->media_device);
432 log_msg(1, "tmp = '%s'", tmp);
433 if (run_program_and_log_output(tmp, 3)) {
434 mr_free(tmp);
435 fatal_error
436 ("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.");
437 }
438 mr_free(tmp);
439 }
440 if (bkpinfo->scratchdir) {
441 make_hole_for_dir(bkpinfo->scratchdir);
442 chmod(bkpinfo->scratchdir, 0700);
443 } else {
444 fatal_error("Scratchdir set to NULL !");
445 }
446 if (bkpinfo->backup_media_type == iso)
447 make_hole_for_dir(bkpinfo->isodir);
448
449 run_program_and_log_output("uname -a", 5);
450 run_program_and_log_output("cat /etc/*-release", 5);
451 run_program_and_log_output("cat /etc/*issue*", 5);
452#ifdef __FreeBSD__
453#else
454 run_program_and_log_output("cat /proc/cpuinfo", 5);
455 run_program_and_log_output
456 ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
457 5);
458#endif
459
460 if (bkpinfo->use_lzo) {
461 mr_asprintf(bkpinfo->zip_exe, "lzop");
462 mr_asprintf(bkpinfo->zip_suffix, "lzo");
463 } else if (bkpinfo->use_gzip) {
464 mr_asprintf(bkpinfo->zip_exe, "gzip");
465 mr_asprintf(bkpinfo->zip_suffix, "gz");
466 } else if (bkpinfo->use_lzma) {
467 mr_asprintf(bkpinfo->zip_exe, "lzma");
468 mr_asprintf(bkpinfo->zip_suffix, "lzma");
469 } else if (bkpinfo->compression_level != 0) {
470 mr_asprintf(bkpinfo->zip_exe, "bzip2");
471 mr_asprintf(bkpinfo->zip_suffix, "bz2");
472 } else {
473 mr_asprintf(bkpinfo->zip_exe, "none");
474 mr_asprintf(bkpinfo->zip_suffix, "");
475 }
476
477// DVD
478
479 if (bkpinfo->backup_media_type == dvd) {
480 tmp = find_home_of_exe("growisofs");
481 if (tmp) {
482 mr_asprintf(cdr_exe, "growisofs");
483 } // unlikely to be used
484 else {
485 mr_free(tmp);
486 fatal_error("Please install growisofs.");
487 }
488 mr_free(tmp);
489
490 if (bkpinfo->nonbootable_backup) {
491 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
492 } else if
493#ifdef __FreeBSD__
494 (TRUE)
495#else
496 (bkpinfo->make_cd_use_lilo)
497#endif
498#ifdef __IA64__
499 {
500 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
501 }
502#else
503 {
504 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
505 }
506#endif
507 else
508 {
509 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
510 }
511 if (bkpinfo->manual_cd_tray) {
512 paranoid_free(mondo_mkisofs_sz);
513 fatal_error("Manual CD tray + DVD not supported yet.");
514 // -m isn't supported by growisofs, BTW...
515 } else {
516 if (bkpinfo->media_device == NULL) {
517 return(1);
518 }
519 mr_free(bkpinfo->call_make_iso);
520 mr_asprintf(bkpinfo->call_make_iso, "%s %s -Z %s . 2>> _ERR_", mondo_mkisofs_sz, "", bkpinfo->media_device);
521 paranoid_free(mondo_mkisofs_sz);
522 }
523 if (getenv ("SUDO_COMMAND")) {
524 mr_asprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
525 tmp = call_program_and_get_last_line_of_output(command);
526 if (!strcmp(tmp, "1")) {
527 mr_free(command);
528 mr_free(tmp);
529 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
530 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
531 }
532 mr_free(command);
533 mr_free(tmp);
534 }
535 log_msg(2, "call_make_iso (DVD res) is ... %s", bkpinfo->call_make_iso);
536 } // end of DVD code
537
538// CD-R or CD-RW
539 if (bkpinfo->backup_media_type == cdrw
540 || bkpinfo->backup_media_type == cdr) {
541 if (!bkpinfo->manual_cd_tray) {
542 mr_asprintf(extra_cdrom_params, "-waiti ");
543 }
544 if (bkpinfo->backup_media_type == cdrw) {
545 mr_asprintf(extra_cdrom_params, "blank=fast ");
546 }
547 tmp = find_home_of_exe("cdrecord");
548 if (tmp) {
549 mr_asprintf(cdr_exe, "cdrecord");
550 } else {
551 mr_free(tmp);
552 tmp = find_home_of_exe("dvdrecord");
553 if (tmp) {
554 mr_asprintf(cdr_exe, "dvdrecord");
555 } else {
556 mr_free(tmp);
557 fatal_error("Please install either cdrecord or dvdrecord.");
558 }
559 }
560 mr_free(tmp);
561
562 if (bkpinfo->nonbootable_backup) {
563 mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
564 } else if
565#ifdef __FreeBSD__
566 (TRUE)
567#else
568 (bkpinfo->make_cd_use_lilo)
569#endif
570#ifdef __IA64__
571 {
572 mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
573 }
574#else
575 {
576 mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
577 }
578#endif
579 else {
580 mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
581 }
582
583 mr_free(bkpinfo->call_make_iso);
584 if (bkpinfo->manual_cd_tray) {
585 if (bkpinfo->call_before_iso == NULL) {
586 mr_asprintf(bkpinfo->call_before_iso, "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_", mondo_mkisofs_sz, bkpinfo->tmpdir);
587 } else {
588 mr_asprintf(call_before_iso_user, "%s", bkpinfo->call_before_iso);
589 mr_free(bkpinfo->call_before_iso);
590 mr_asprintf(bkpinfo->call_before_iso, "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )", mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
591 mr_free(call_before_iso_user);
592 }
593 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
594 if (bkpinfo->media_device == NULL) {
595 return(1);
596 }
597 mr_asprintf(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);
598 } else {
599 mr_asprintf(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);
600 }
601 mr_free(cdr_exe);
602 paranoid_free(mondo_mkisofs_sz);
603 paranoid_free(extra_cdrom_params);
604 } // end of CD code
605
606 if (bkpinfo->backup_media_type == iso) {
607
608/* Patch by Conor Daly <conor.daly@met.ie>
609 * 23-june-2004
610 * Break up isodir into iso_mnt and iso_path
611 * These will be used along with iso-dev at restore time
612 * to locate the ISOs where ever they're mounted
613 */
614
615 log_it("isodir = %s", bkpinfo->isodir);
616 mr_asprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
617 log_it("command = %s", command);
618 iso_dev = call_program_and_get_last_line_of_output(command);
619 log_it("res of it = %s", iso_dev);
620 mr_asprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
621 write_one_liner_data_file(tmp, iso_dev);
622 mr_free(tmp);
623 mr_free(command);
624
625 mr_asprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
626 mr_free(iso_dev);
627
628 log_it("command = %s", command);
629 iso_mnt = call_program_and_get_last_line_of_output(command);
630 log_it("res of it = %s", iso_mnt);
631 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
632 write_one_liner_data_file(tmp, iso_mnt);
633 mr_free(tmp);
634 mr_free(command);
635
636 log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
637 mr_asprintf(iso_tmp, "%s", bkpinfo->isodir);
638 if (strlen(iso_tmp) < strlen(iso_mnt)) {
639 mr_asprintf(iso_path, "%s", "");
640 } else {
641 mr_asprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
642 }
643 mr_free(iso_mnt);
644 mr_free(iso_tmp);
645
646 mr_asprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
647 write_one_liner_data_file(tmp, iso_path);
648 mr_free(tmp);
649
650 log_it("isodir: %s", iso_path);
651 mr_free(iso_path);
652
653 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
654 write_one_liner_data_file(tmp, bkpinfo->prefix);
655 mr_free(tmp);
656
657 log_it("iso-prefix: %s", bkpinfo->prefix);
658
659/* End patch */
660 } // end of iso code
661
662 if (bkpinfo->backup_media_type == netfs) {
663 if (bkpinfo->netfs_mount) {
664 mr_asprintf(hostname, "%s", bkpinfo->netfs_mount);
665 } else {
666 log_it("netfs_mount is NULL");
667 retval++;
668 mr_asprintf(hostname, "");
669 }
670 colon = strchr(hostname, ':');
671 if (!colon) {
672 log_it("netfs mount doesn't have a colon in it");
673 retval++;
674 } else {
675 struct hostent *hent;
676
677 *colon = '\0';
678 hent = gethostbyname(hostname);
679 if (!hent) {
680 log_it("Can't resolve Network mount (%s): %s", hostname, hstrerror(h_errno));
681 retval++;
682 } else {
683 mr_asprintf(ip_address, "%s", inet_ntoa((struct in_addr) *((struct in_addr *) hent->h_addr)));
684 mr_strcat(ip_address, strchr(bkpinfo->netfs_mount, ':'));
685 mr_free(bkpinfo->netfs_mount);
686 bkpinfo->netfs_mount = ip_address;
687 }
688 }
689 mr_free(hostname);
690 store_netfs_config();
691 }
692
693 log_it("Finished processing incoming params");
694 if (retval) {
695 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
696 }
697 if (bkpinfo->include_paths == NULL) {
698 mr_asprintf(p, "/");
699 bkpinfo->include_paths = p;
700 }
701 g_backup_media_type = bkpinfo->backup_media_type;
702 paranoid_free(mtpt);
703 return (retval);
704}
705
706
707
708/**
709 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
710 * Seeds the random-number generator, loads important modules, checks the sanity
711 * of the user's Linux distribution, and deletes logfile.
712 * @param bkpinfo The backup information structure. Will be initialized.
713 * @return number of errors (0 for success)
714 */
715int pre_param_configuration()
716{
717 int res = 0;
718 char *tmp = NULL;
719
720 make_hole_for_dir(MNT_CDROM);
721 assert(bkpinfo != NULL);
722 srandom((unsigned long) (time(NULL)));
723 insmod_crucial_modules();
724 if (bkpinfo->disaster_recovery) {
725 if (!does_nonMS_partition_exist()) {
726 fatal_error("I am in disaster recovery mode\nPlease don't run mondoarchive.");
727 }
728 }
729
730 unlink(MONDO_TRACEFILE);
731 mr_asprintf(tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
732 run_program_and_log_output(tmp, FALSE);
733 paranoid_free(tmp);
734 if (find_and_store_mondoarchives_home(g_mondo_home)) {
735 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");
736 res++;
737 return (res);
738 }
739 res += some_basic_system_sanity_checks();
740 if (res) {
741 log_it("Your distribution did not pass Mondo's sanity test.");
742 }
743 g_current_media_number = 1;
744 return (res);
745}
746
747void setup_tmpdir(char *path) {
748
749 char *tmp = NULL;
750 char *p = NULL;
751
752 if ((bkpinfo->tmpdir != NULL) && (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL)) {
753 /* purging a potential old tmpdir */
754 log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
755 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->tmpdir);
756 mr_free(bkpinfo->tmpdir);
757 (void)system(tmp);
758 mr_free(tmp);
759 }
760
761 if (path != NULL) {
762 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", path);
763 } else if (getenv("TMPDIR")) {
764 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
765 } else if (getenv("TMP")) {
766 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
767 } else {
768 mr_asprintf(tmp, "/tmp/mondo.tmp.XXXXXX");
769 }
770 p = mkdtemp(tmp);
771 if (p == NULL) {
772 log_it("Failed to create global tmp directory %s for Mondo.",tmp);
773 mr_free(tmp);
774 finish(-1);
775 }
776
777 bkpinfo->tmpdir = p;
778 log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
779}
780
781/* Free all memory allocated into bkpinfo */
782void mr_free_bkpinfo() {
783
784 log_msg(1, "Freeing bkpinfo");
785 mr_free(bkpinfo->media_device);
786 mr_free(bkpinfo->boot_device);
787 mr_free(bkpinfo->zip_exe);
788 mr_free(bkpinfo->zip_suffix);
789 mr_free(bkpinfo->image_devs);
790 mr_free(bkpinfo->isodir);
791 mr_free(bkpinfo->prefix);
792 mr_free(bkpinfo->scratchdir);
793 mr_free(bkpinfo->tmpdir);
794 mr_free(bkpinfo->include_paths);
795 mr_free(bkpinfo->exclude_paths);
796 mr_free(bkpinfo->restore_path);
797 mr_free(bkpinfo->call_before_iso);
798 mr_free(bkpinfo->call_make_iso);
799 mr_free(bkpinfo->call_burn_iso);
800 mr_free(bkpinfo->call_after_iso);
801 mr_free(bkpinfo->kernel_path);
802 mr_free(bkpinfo->netfs_mount);
803 mr_free(bkpinfo->netfs_remote_dir);
804 mr_free(bkpinfo->netfs_user);
805 mr_free(bkpinfo->netfs_proto);
806 mr_free(bkpinfo->postnuke_tarball);
807
808 /* Then free the structure */
809 mr_free(bkpinfo);
810}
811
812/**
813 * Reset all fields of the backup information structure to a sensible default.
814 * @param bkpinfo The @c bkpinfo to reset.
815 */
816void init_bkpinfo()
817{
818 int i;
819 log_msg(1, "Initializing bkpinfo");
820 bkpinfo = (struct s_bkpinfo *)mr_malloc(sizeof(struct s_bkpinfo));
821
822 /* Initialized in same order as in the structure declaration to detect errors more easily */
823 bkpinfo->media_device = NULL;
824 for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
825 bkpinfo->media_size[i] = -1;
826 }
827 bkpinfo->boot_loader = '\0';
828 bkpinfo->boot_device = NULL;
829 bkpinfo->zip_exe = NULL;
830 bkpinfo->zip_suffix = NULL;
831 bkpinfo->image_devs = NULL;
832 bkpinfo->compression_level = 3;
833 bkpinfo->use_lzo = FALSE;
834 bkpinfo->use_gzip = FALSE;
835 bkpinfo->use_lzma = FALSE;
836 bkpinfo->verify_data = FALSE;
837 bkpinfo->backup_data = FALSE;
838 bkpinfo->restore_data = FALSE;
839 bkpinfo->use_star = FALSE;
840 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
841 bkpinfo->disaster_recovery = (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
842 if (bkpinfo->disaster_recovery) {
843 mr_asprintf(bkpinfo->isodir, "%s", "/");
844 } else {
845 mr_asprintf(bkpinfo->isodir, "%s", MONDO_CACHE);
846 }
847 mr_asprintf(bkpinfo->prefix, "%s", STD_PREFIX);
848 bkpinfo->scratchdir = NULL; // Really setup after
849 bkpinfo->tmpdir = NULL; // Really setup after
850 bkpinfo->optimal_set_size = 0;
851 bkpinfo->backup_media_type = none;
852 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
853 bkpinfo->include_paths = NULL;
854 bkpinfo->exclude_paths = NULL;
855 bkpinfo->restore_path = NULL;
856 bkpinfo->call_before_iso = NULL;
857 bkpinfo->call_make_iso = NULL;
858 bkpinfo->call_burn_iso = NULL;
859 bkpinfo->call_after_iso = NULL;
860 bkpinfo->kernel_path = NULL;
861 bkpinfo->netfs_mount = NULL;
862 bkpinfo->netfs_remote_dir = NULL;
863 bkpinfo->netfs_user = NULL;
864 bkpinfo->netfs_proto = NULL;
865 bkpinfo->postnuke_tarball = NULL;
866 bkpinfo->wipe_media_first = FALSE;
867 bkpinfo->differential = 0;
868 bkpinfo->please_dont_eject = FALSE;
869 bkpinfo->cdrw_speed = 0;
870 bkpinfo->manual_cd_tray = FALSE;
871 bkpinfo->nonbootable_backup = FALSE;
872 bkpinfo->make_cd_use_lilo = FALSE;
873 bkpinfo->use_obdr = FALSE;
874 bkpinfo->restore_mode = interactive;
875
876 setup_tmpdir(NULL);
877 sensibly_set_scratchdir();
878}
879
880
881
882
883/**
884 * Get the remaining free space (in MB) on @p partition.
885 * @param partition The partition to check free space on (either a device or a mountpoint).
886 * @return The free space on @p partition, in MB.
887 */
888long free_space_on_given_partition(char *partition)
889{
890 char *out_sz = NULL;
891 char *command = NULL;
892 long res;
893
894 assert_string_is_neither_NULL_nor_zerolength(partition);
895
896 mr_asprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
897 if (system(command)) {
898 mr_free(command);
899 return (-1);
900 } // partition does not exist
901 mr_free(command);
902
903 mr_asprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4", partition);
904 out_sz = call_program_and_get_last_line_of_output(command);
905 mr_free(command);
906
907 if (strlen(out_sz) == 0) {
908 mr_free(out_sz);
909 return (-1);
910 } // error within df, probably
911 res = atol(out_sz);
912 mr_free(out_sz);
913 return (res);
914}
915
916
917
918/**
919 * Check the user's system for sanity. Checks performed:
920 * - make sure user has enough RAM (32mb required, 64mb recommended)
921 * - make sure user has enough free space in @c /
922 * - check kernel for ramdisk support
923 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
924 * - make sure CD-ROM is unmounted
925 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
926 *
927 * @return number of problems with the user's setup (0 for success)
928 */
929int some_basic_system_sanity_checks()
930{
931
932 /*@ buffers ************ */
933 char *tmp = NULL;
934
935 /*@ int's *************** */
936 int retval = 0;
937
938 mvaddstr_and_log_it(g_currentY, 0,
939 "Checking sanity of your Linux distribution");
940#ifndef __FreeBSD__
941 if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
942 && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
943 log_it("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
944 run_program_and_log_output("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
945 }
946 tmp = call_program_and_get_last_line_of_output("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2");
947 if (atol(tmp) < 35000) {
948 retval++;
949 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
950 }
951 if (atol(tmp) < 66000) {
952 log_to_screen("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
953 }
954 mr_free(tmp);
955#endif
956
957 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
958 retval++;
959 log_to_screen
960 ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
961 fatal_error
962 ("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. :)");
963 }
964#ifndef __FreeBSD__
965 if (run_program_and_log_output
966 ("grep ramdisk /proc/devices", FALSE)) {
967 /* Some SuSE have ramdisk as modules, so insert it first, then test again */
968 run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
969 if (run_program_and_log_output
970 ("grep ramdisk /proc/devices", FALSE)) {
971 if (!ask_me_yes_or_no
972 ("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?"))
973 {
974 // retval++;
975 log_to_screen
976 ("It looks as if your kernel lacks ramdisk and initrd support.");
977 log_to_screen
978 ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
979 }
980 }
981 }
982#endif
983 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
984 retval += whine_if_not_found("mkisofs");
985 if (system("which dvdrecord > /dev/null 2> /dev/null")) {
986 retval += whine_if_not_found("cdrecord");
987 }
988 retval += whine_if_not_found("bzip2");
989 retval += whine_if_not_found("gzip");
990 retval += whine_if_not_found("awk");
991 retval += whine_if_not_found("md5sum");
992 retval += whine_if_not_found("strings");
993 retval += whine_if_not_found("mindi");
994 retval += whine_if_not_found("buffer");
995
996 // abort if Windows partition but no ms-sys and parted
997 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
998 log_to_screen("I think you have a Windows 9x partition.");
999 retval += whine_if_not_found("parted");
1000 }
1001
1002 tmp = find_home_of_exe("cmp");
1003 if (!tmp) {
1004 mr_free(tmp);
1005 tmp = find_home_of_exe("true");
1006 if (!tmp) {
1007 retval += whine_if_not_found("cmp");
1008 } else {
1009 log_to_screen("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1010 if (run_program_and_log_output("cp -f `which true` /usr/bin/cmp", 0)) {
1011 mr_free(tmp);
1012 fatal_error("Failed to create dummy 'cmp' file.");
1013 }
1014 }
1015 }
1016 mr_free(tmp);
1017
1018 run_program_and_log_output("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1019 tmp = call_program_and_get_last_line_of_output("mount | grep -E \"cdr(om|w)\"");
1020 if (strcmp("", tmp)) {
1021 if (strstr(tmp, "autofs")) {
1022 log_to_screen
1023 ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1024 log_to_screen
1025 ("if a CD actually is inserted. If a CD is inserted, please");
1026 log_to_screen("eject it. Thank you.");
1027 log_it
1028 ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1029 } else
1030 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1031 retval++;
1032 mr_free(tmp);
1033 fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
1034 }
1035 }
1036 mr_free(tmp);
1037
1038 run_program_and_log_output("cat /etc/fstab", 5);
1039#ifdef __FreeBSD__
1040 run_program_and_log_output("vinum printconfig", 5);
1041#else
1042 run_program_and_log_output("cat /etc/raidtab", 5);
1043#endif
1044
1045 if (run_program_and_log_output("mindi -V", 1)) {
1046 log_to_screen("Could not ascertain mindi's version number.");
1047 log_to_screen
1048 ("You have not installed Mondo and/or Mindi properly.");
1049 log_to_screen("Please uninstall and reinstall them both.");
1050 fatal_error("Please reinstall Mondo and Mindi.");
1051 }
1052 mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1053 if (run_program_and_log_output(tmp, 5)) {
1054 mr_free(tmp);
1055 mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1056 log_to_screen(tmp);
1057 log_to_screen
1058 ("Please run that command by hand and examine /var/log/mindi.log");
1059 log_to_screen
1060 ("for more information. Perhaps your /etc/fstab file is insane.");
1061 log_to_screen
1062 ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1063 retval++;
1064 }
1065 mr_free(tmp);
1066
1067 if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1068 && !does_file_exist("/etc/raidtab")) {
1069 log_to_screen
1070 ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1071 create_raidtab_from_mdstat("/etc/raidtab");
1072 }
1073
1074 if (retval) {
1075 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1076 } else {
1077 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1078 }
1079 return (retval);
1080}
1081
1082/**
1083 * Retrieve the line containing @p label from the config file.
1084 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1085 * @param label What to read from the file.
1086 * @param value Where to put it.
1087 * @return 0 for success, 1 for failure.
1088 */
1089char *read_cfg_var(char *config_file, char *label)
1090{
1091 /*@ buffer ****************************************************** */
1092 char *command = NULL;
1093 char *value = NULL;
1094
1095 /*@ end vars *************************************************** */
1096
1097 assert_string_is_neither_NULL_nor_zerolength(config_file);
1098 assert_string_is_neither_NULL_nor_zerolength(label);
1099 if (!does_file_exist(config_file)) {
1100 log_to_screen("(read_cfg_var) Cannot find %s config file", config_file);
1101 return (NULL);
1102 /* BERLIOS: not sure the usage of this one ?
1103 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1104 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1105 return (0);
1106 */
1107 } else {
1108 mr_asprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1109 value = call_program_and_get_last_line_of_output(command);
1110 mr_free(command);
1111
1112 if (strlen(value) == 0) {
1113 return (NULL);
1114 } else {
1115 return (value);
1116 }
1117 }
1118}
1119
1120
1121
1122/**
1123 * Remount @c supermount if it was unmounted earlier.
1124 */
1125void remount_supermounts_if_necessary()
1126{
1127 if (g_remount_cdrom_at_end) {
1128 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1129 }
1130 if (g_remount_floppy_at_end) {
1131 run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1132 }
1133}
1134
1135/**
1136 * Unmount @c supermount if it's mounted.
1137 */
1138void unmount_supermounts_if_necessary()
1139{
1140 if (run_program_and_log_output
1141 ("mount | grep cdrom | grep super", FALSE) == 0) {
1142 g_remount_cdrom_at_end = TRUE;
1143 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1144 }
1145 if (run_program_and_log_output
1146 ("mount | grep floppy | grep super", FALSE) == 0) {
1147 g_remount_floppy_at_end = TRUE;
1148 run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1149 }
1150}
1151
1152/**
1153 * Whether we had to stop autofs (if so, restart it at end).
1154 */
1155bool g_autofs_stopped = FALSE;
1156
1157/**
1158 * Path to the autofs initscript ("" if none exists).
1159 */
1160char g_autofs_exe[MAX_STR_LEN];
1161
1162/**
1163 * Autofs initscript in Xandros Linux distribution.
1164 */
1165#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1166
1167/**
1168 * Autofs initscript in most Linux distributions.
1169 */
1170#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1171
1172/**
1173 * If autofs is mounted, stop it (restart at end).
1174 */
1175void stop_autofs_if_necessary()
1176{
1177 char *tmp = NULL;
1178
1179 g_autofs_exe[0] = '\0';
1180 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1181 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1182 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1183 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1184 }
1185
1186 if (!g_autofs_exe[0]) {
1187 log_msg(3, "No autofs detected.");
1188 } else {
1189 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1190 // FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1191 mr_asprintf(tmp, "%s stop", g_autofs_exe);
1192 if (run_program_and_log_output(tmp, 2)) {
1193 log_it("Failed to stop autofs - I assume it wasn't running");
1194 } else {
1195 g_autofs_stopped = TRUE;
1196 log_it("Stopped autofs OK");
1197 }
1198 mr_free(tmp);
1199 }
1200}
1201
1202/**
1203 * If autofs was stopped earlier, restart it.
1204 */
1205void restart_autofs_if_necessary()
1206{
1207 char *tmp = NULL;
1208
1209 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1210 log_msg(3, "No autofs detected.");
1211 return;
1212 }
1213 mr_asprintf(tmp, "%s start", g_autofs_exe);
1214 if (run_program_and_log_output(tmp, 2)) {
1215 log_it("Failed to start autofs");
1216 } else {
1217 g_autofs_stopped = FALSE;
1218 log_it("Started autofs OK");
1219 }
1220 mr_free(tmp);
1221}
1222
1223
1224/**
1225 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1226 */
1227void mount_boot_if_necessary() {
1228 char *tmp = NULL;
1229 char *command = NULL;
1230
1231 log_msg(1, "Started sub");
1232 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1233 g_boot_mountpt[0] = '\0';
1234 log_msg(4, "Done. Great. Seeting command to something");
1235 mr_asprintf(command, "%s", "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1236 log_msg(4, "Cool. Command = '%s'", command);
1237 tmp = call_program_and_get_last_line_of_output(command);
1238 mr_free(command);
1239
1240 log_msg(4, "tmp = '%s'", tmp);
1241 log_it("/boot is at %s according to /etc/fstab", tmp);
1242 mr_asprintf(command, "mount | grep -Ew '/boot'");
1243 mr_free(tmp);
1244 tmp = call_program_and_get_last_line_of_output(command);
1245 mr_free(command);
1246
1247 if (!strcmp(tmp,"")) {
1248 if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1249 if (!run_program_and_log_output("mount /boot", 5)) {
1250 strcpy(g_boot_mountpt, "/boot");
1251 log_msg(1, "Mounted /boot");
1252 } else {
1253 log_it("...ignored cos it's a label or uuid :-)");
1254 }
1255 } else {
1256 mr_asprintf(command, "mount | grep -E '^%s'", tmp);
1257 log_msg(3, "command = %s", command);
1258 if (run_program_and_log_output(command, 5)) {
1259 strcpy(g_boot_mountpt, tmp);
1260 mr_free(tmp);
1261 log_it("%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1262
1263 mr_asprintf(tmp, "mount %s", g_boot_mountpt);
1264 if (run_program_and_log_output(tmp, 5)) {
1265 g_boot_mountpt[0] = '\0';
1266 log_msg(1, "Plan B");
1267 if (!run_program_and_log_output("mount /boot", 5)) {
1268 strcpy(g_boot_mountpt, "/boot");
1269 log_msg(1, "Plan B worked");
1270 } else {
1271 log_msg(1,
1272 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1273 }
1274 }
1275 }
1276 mr_free(command);
1277 }
1278 }
1279 mr_free(tmp);
1280 log_msg(1, "Ended sub");
1281}
1282
1283
1284/**
1285 * If we mounted /boot earlier, unmount it.
1286 */
1287void unmount_boot_if_necessary()
1288{
1289 char *tmp = NULL;
1290
1291 log_msg(3, "starting");
1292 if (g_boot_mountpt[0]) {
1293 mr_asprintf(tmp, "umount %s", g_boot_mountpt);
1294 if (run_program_and_log_output(tmp, 5)) {
1295 log_it("WARNING - unable to unmount /boot");
1296 }
1297 mr_free(tmp);
1298 }
1299 log_msg(3, "leaving");
1300}
1301
1302
1303
1304/**
1305 * Write a line to a configuration file. Writes a line of the form,
1306 * @c label @c value.
1307 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1308 * @param label What to call this bit of data you're writing.
1309 * @param value The bit of data you're writing.
1310 * @return 0 for success, 1 for failure.
1311 */
1312int write_cfg_var(char *config_file, char *label, char *value)
1313{
1314 /*@ buffers ***************************************************** */
1315 char *command = NULL;
1316 char *tempfile = NULL;
1317
1318
1319 /*@ end vars *************************************************** */
1320 assert_string_is_neither_NULL_nor_zerolength(config_file);
1321 assert_string_is_neither_NULL_nor_zerolength(label);
1322 assert(value != NULL);
1323 if (!does_file_exist(config_file)) {
1324 log_to_screen("(write_cfg_file) Cannot find %s config file", config_file);
1325 return (1);
1326 }
1327 mr_asprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1328 if (does_file_exist(config_file)) {
1329 mr_asprintf(command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1330 paranoid_system(command);
1331 mr_free(command);
1332 }
1333 mr_asprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1334 paranoid_system(command);
1335 mr_free(command);
1336
1337 mr_asprintf(command, "mv -f %s %s", tempfile, config_file);
1338 paranoid_system(command);
1339 mr_free(command);
1340 unlink(tempfile);
1341 mr_free(tempfile);
1342 return (0);
1343}
1344
1345
1346/**
1347 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1348 * information to the logfile.
1349 */
1350void standard_log_debug_msg(int debug_level, const char *szFile, const char *szFunction, int nLine, const char *fmt, ...) {
1351
1352 va_list args;
1353 static int depth = 0;
1354 FILE *fout;
1355
1356 if (depth > 5) {
1357 depth--;
1358 return;
1359 }
1360 depth++;
1361
1362 if (debug_level <= g_loglevel) {
1363 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1364 return;
1365 }
1366
1367 // add tabs to distinguish log levels
1368 if (debug_level > 0) {
1369 fprintf(fout, "DBG%d: ", debug_level);
1370 if (getpid() == g_main_pid)
1371 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1372 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1373 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1374 else
1375 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1376 } else {
1377 fprintf(fout, "INFO: ");
1378 }
1379 va_start(args, fmt);
1380 vfprintf(fout, fmt, args);
1381 va_end(args);
1382
1383 // do not slow down the progran if standard debug level
1384 // must be enabled: if no flush, the log won't be up-to-date if there
1385 // is a segfault
1386 //if (g_dwDebugLevel != 1)
1387
1388 fprintf(fout, "\n");
1389 paranoid_fclose(fout);
1390 }
1391 depth--;
1392}
1393
1394/**
1395 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1396 */
1397void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1398 ...) = standard_log_debug_msg;
1399
1400
1401/**
1402 * Allocate or free important globals, depending on @p mal.
1403 * @param mal If TRUE, malloc; if FALSE, free.
1404 */
1405void do_libmondo_global_strings_thing(int mal)
1406{
1407 if (mal) {
1408 malloc_string(g_boot_mountpt);
1409 malloc_string(g_mondo_home);
1410 malloc_string(g_magicdev_command);
1411 } else {
1412 paranoid_free(g_boot_mountpt);
1413 paranoid_free(g_mondo_home);
1414 paranoid_free(g_magicdev_command);
1415
1416 mr_free(g_serial_string);
1417 }
1418}
1419
1420/**
1421 * Allocate important globals.
1422 * @see do_libmondo_global_strings_thing
1423 */
1424void malloc_libmondo_global_strings(void)
1425{
1426 do_libmondo_global_strings_thing(1);
1427}
1428
1429/**
1430 * Free important globals.
1431 * @see do_libmondo_global_strings_thing
1432 */
1433void free_libmondo_global_strings(void)
1434{
1435 do_libmondo_global_strings_thing(0);
1436}
1437
1438
1439
1440/**
1441 * Stop @c magicdev if it's running.
1442 * The command used to start it is saved in @p g_magicdev_command.
1443 */
1444void stop_magicdev_if_necessary() {
1445
1446 char *tmp = NULL;
1447
1448 tmp = call_program_and_get_last_line_of_output("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99");
1449
1450 strcpy(g_magicdev_command, tmp);
1451 mr_free(tmp);
1452
1453 if (g_magicdev_command[0]) {
1454 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1455 paranoid_system("killall magicdev");
1456 }
1457}
1458
1459
1460/**
1461 * Restart magicdev if it was stopped.
1462 */
1463void restart_magicdev_if_necessary()
1464{
1465 char *tmp = NULL;
1466
1467 if (g_magicdev_command && g_magicdev_command[0]) {
1468 mr_asprintf(tmp, "%s &", g_magicdev_command);
1469 paranoid_system(tmp);
1470 mr_free(tmp);
1471 }
1472}
1473
1474/* @} - end of utilityGroup */
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