source: MondoRescue/branches/2.2.10/mondo/src/common/libmondo-tools.c@ 2325

Last change on this file since 2325 was 2325, checked in by Bruno Cornec, 15 years ago

r3336@localhost: bruno | 2009-08-11 16:32:36 +0200

  • bkpinfo->media_device, bkpinfo->nfs_remote_dir, and bkpinfo->nfs_mount are now dynamically allocated
  • new interfaces for find_cdrom_device(), find_tape_device_and_size(), find_dvd_device(), find_cdrw_device(), set_dev_to_this_if_rx_OK() and read_cfg_var() which allocate the string now returned
  • Better differentiation between ISO and NFS iso file names construction
  • Property svn:keywords set to Id
File size: 39.4 KB
Line 
1/*
2 $Id: libmondo-tools.c 2325 2009-08-18 13:19:15Z 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 2325 2009-08-18 13:19:15Z 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 strcpy(bkpinfo->zip_exe, "lzop");
481 strcpy(bkpinfo->zip_suffix, "lzo");
482 } else if (bkpinfo->use_gzip) {
483 strcpy(bkpinfo->zip_exe, "gzip");
484 strcpy(bkpinfo->zip_suffix, "gz");
485 } else if (bkpinfo->compression_level != 0) {
486 strcpy(bkpinfo->zip_exe, "bzip2");
487 strcpy(bkpinfo->zip_suffix, "bz2");
488 } else {
489 bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
490 }
491
492// DVD
493
494 if (bkpinfo->backup_media_type == dvd) {
495 if (find_home_of_exe("growisofs")) {
496 strcpy(cdr_exe, "growisofs");
497 } // unlikely to be used
498 else {
499 fatal_error("Please install growisofs.");
500 }
501 if (bkpinfo->nonbootable_backup) {
502 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
503 } else if
504#ifdef __FreeBSD__
505 (TRUE)
506#else
507 (bkpinfo->make_cd_use_lilo)
508#endif
509#ifdef __IA64__
510 {
511 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
512 }
513#else
514 {
515 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
516 }
517#endif
518 else
519 {
520 mr_asprintf(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
521 }
522 if (bkpinfo->manual_cd_tray) {
523 paranoid_free(mondo_mkisofs_sz);
524 fatal_error("Manual CD tray + DVD not supported yet.");
525 // -m isn't supported by growisofs, BTW...
526 } else {
527 if (bkpinfo->media_device == NULL) {
528 return(1);
529 }
530 sprintf(bkpinfo->call_make_iso,
531 "%s %s -Z %s . 2>> _ERR_",
532 mondo_mkisofs_sz,
533 "", bkpinfo->media_device);
534 paranoid_free(mondo_mkisofs_sz);
535 }
536 if (getenv ("SUDO_COMMAND")) {
537 mr_asprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
538 if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
539 mr_free(command);
540 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
541 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
542 }
543 mr_free(command);
544 }
545 log_msg(2, "call_make_iso (DVD res) is ... %s",
546 bkpinfo->call_make_iso);
547 } // end of DVD code
548
549// CD-R or CD-RW
550 if (bkpinfo->backup_media_type == cdrw
551 || bkpinfo->backup_media_type == cdr) {
552 if (!bkpinfo->manual_cd_tray) {
553 mr_asprintf(extra_cdrom_params, "-waiti ");
554 }
555 if (bkpinfo->backup_media_type == cdrw) {
556 mr_asprintf(extra_cdrom_params, "blank=fast ");
557 }
558 if (find_home_of_exe("cdrecord")) {
559 strcpy(cdr_exe, "cdrecord");
560 } else if (find_home_of_exe("dvdrecord")) {
561 strcpy(cdr_exe, "dvdrecord");
562 } else {
563 fatal_error("Please install either cdrecord or dvdrecord.");
564 }
565 if (bkpinfo->nonbootable_backup) {
566 mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
567 } else if
568#ifdef __FreeBSD__
569 (TRUE)
570#else
571 (bkpinfo->make_cd_use_lilo)
572#endif
573#ifdef __IA64__
574 {
575 mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
576 }
577#else
578 {
579 mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
580 }
581#endif
582 else
583 {
584 mr_asprintf(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
585 }
586 if (bkpinfo->manual_cd_tray) {
587 if (bkpinfo->call_before_iso[0] == '\0') {
588 sprintf(bkpinfo->call_before_iso,
589 "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_",
590 mondo_mkisofs_sz, bkpinfo->tmpdir);
591 } else {
592 strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
593 sprintf (bkpinfo->call_before_iso,
594 "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )",
595 mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
596 }
597 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
598 if (bkpinfo->media_device == NULL) {
599 return(1);
600 }
601 sprintf(bkpinfo->call_make_iso,
602 "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS,
603 cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
604 extra_cdrom_params, bkpinfo->media_device,
605 bkpinfo->cdrw_speed, bkpinfo->tmpdir);
606 } else {
607 sprintf(bkpinfo->call_make_iso,
608 "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
609 mondo_mkisofs_sz, cdr_exe,
610 (bkpinfo->please_dont_eject) ? " " : "-eject",
611 extra_cdrom_params, bkpinfo->media_device,
612 bkpinfo->cdrw_speed);
613 }
614 paranoid_free(mondo_mkisofs_sz);
615 paranoid_free(extra_cdrom_params);
616 } // end of CD code
617
618 if (bkpinfo->backup_media_type == iso) {
619
620/* Patch by Conor Daly <conor.daly@met.ie>
621 * 23-june-2004
622 * Break up isodir into iso_mnt and iso_path
623 * These will be used along with iso-dev at restore time
624 * to locate the ISOs where ever they're mounted
625 */
626
627 log_it("isodir = %s", bkpinfo->isodir);
628 mr_asprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
629 log_it("command = %s", command);
630 log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
631 mr_asprintf(iso_dev, "%s", call_program_and_get_last_line_of_output(command));
632 mr_asprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
633 write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
634 mr_free(tmp);
635 mr_free(command);
636
637 mr_asprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
638 mr_free(iso_dev);
639
640 log_it("command = %s", command);
641 log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
642 mr_asprintf(iso_mnt, "%s", call_program_and_get_last_line_of_output(command));
643 mr_asprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
644 write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
645 mr_free(tmp);
646 mr_free(command);
647
648 log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
649 mr_asprintf(iso_tmp, "%s", bkpinfo->isodir);
650 if (strlen(iso_tmp) < strlen(iso_mnt)) {
651 mr_asprintf(iso_path, "%s", "");
652 } else {
653 mr_asprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
654 }
655 mr_free(iso_tmp);
656
657 mr_asprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
658 write_one_liner_data_file(tmp, iso_path);
659 mr_free(tmp);
660
661 log_it("isodir: %s", iso_path);
662 mr_free(iso_path);
663
664 mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
665 write_one_liner_data_file(tmp, bkpinfo->prefix);
666 mr_free(tmp);
667
668 log_it("iso-prefix: %s", bkpinfo->prefix);
669
670/* End patch */
671 } // end of iso code
672
673 if (bkpinfo->backup_media_type == nfs) {
674 if (bkpinfo->nfs_mount) {
675 strcpy(hostname, bkpinfo->nfs_mount);
676 } else {
677 log_it("nfs_mount is NULL");
678 retval++;
679 strcpy(hostname, "");
680 }
681 colon = strchr(hostname, ':');
682 if (!colon) {
683 log_it("nfs mount doesn't have a colon in it");
684 retval++;
685 } else {
686 struct hostent *hent;
687
688 *colon = '\0';
689 hent = gethostbyname(hostname);
690 if (!hent) {
691 log_it("Can't resolve NFS mount (%s): %s", hostname, hstrerror(h_errno));
692 retval++;
693 } else {
694 mr_asprintf(ip_address, "%s", inet_ntoa((struct in_addr) *((struct in_addr *) hent->h_addr)));
695 mr_strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
696 mr_free(bkpinfo->nfs_mount);
697 bkpinfo->nfs_mount = ip_address;
698 }
699 }
700 store_nfs_config();
701 }
702
703 log_it("Finished processing incoming params");
704 if (retval) {
705 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
706 }
707 if (bkpinfo->include_paths == NULL) {
708 mr_asprintf(p, "/");
709 bkpinfo->include_paths = p;
710 }
711 g_backup_media_type = bkpinfo->backup_media_type;
712 paranoid_free(mtpt);
713 paranoid_free(hostname);
714 paranoid_free(cdr_exe);
715 return (retval);
716}
717
718
719
720/**
721 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
722 * Seeds the random-number generator, loads important modules, checks the sanity
723 * of the user's Linux distribution, and deletes logfile.
724 * @param bkpinfo The backup information structure. Will be initialized.
725 * @return number of errors (0 for success)
726 */
727int pre_param_configuration()
728{
729 int res = 0;
730 char *tmp = NULL;
731
732 make_hole_for_dir(MNT_CDROM);
733 assert(bkpinfo != NULL);
734 srandom((unsigned long) (time(NULL)));
735 insmod_crucial_modules();
736 if (bkpinfo->disaster_recovery) {
737 if (!does_nonMS_partition_exist()) {
738 fatal_error
739 ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
740 }
741 }
742
743 unlink(MONDO_TRACEFILE);
744 mr_asprintf(tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
745 run_program_and_log_output(tmp, FALSE);
746 paranoid_free(tmp);
747 if (find_and_store_mondoarchives_home(g_mondo_home)) {
748 fprintf(stderr,
749 "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");
750 res++;
751 return (res);
752 }
753 res += some_basic_system_sanity_checks();
754 if (res) {
755 log_it("Your distribution did not pass Mondo's sanity test.");
756 }
757 g_current_media_number = 1;
758 bkpinfo->postnuke_tarball[0] = '\0';
759 return (res);
760}
761
762void setup_tmpdir(char *path) {
763
764 char *tmp = NULL;
765 char *p = NULL;
766
767 if ((bkpinfo->tmpdir != NULL) && (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL)) {
768 /* purging a potential old tmpdir */
769 log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
770 mr_asprintf(tmp,"rm -Rf %s",bkpinfo->tmpdir);
771 mr_free(bkpinfo->tmpdir);
772 (void)system(tmp);
773 mr_free(tmp);
774 }
775
776 if (path != NULL) {
777 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", path);
778 } else if (getenv("TMPDIR")) {
779 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
780 } else if (getenv("TMP")) {
781 mr_asprintf(tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
782 } else {
783 mr_asprintf(tmp, "/tmp/mondo.tmp.XXXXXX");
784 }
785 p = mkdtemp(tmp);
786 if (p == NULL) {
787 log_it("Failed to create global tmp directory %s for Mondo.",tmp);
788 mr_free(tmp);
789 finish(-1);
790 }
791
792 bkpinfo->tmpdir = p;
793 log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
794}
795
796/* Free all memory allocated into bkpinfo */
797void mr_free_bkpinfo() {
798
799 mr_free(bkpinfo->media_device);
800 mr_free(bkpinfo->isodir);
801 mr_free(bkpinfo->prefix);
802 mr_free(bkpinfo->scratchdir);
803 mr_free(bkpinfo->tmpdir);
804 mr_free(bkpinfo->include_paths);
805 mr_free(bkpinfo->exclude_paths);
806 mr_free(bkpinfo->nfs_mount);
807 mr_free(bkpinfo->nfs_remote_dir);
808 mr_free(bkpinfo->nfs_user);
809
810 /* Then free the structure */
811 mr_free(bkpinfo);
812}
813
814/**
815 * Reset all fields of the backup information structure to a sensible default.
816 * @param bkpinfo The @c bkpinfo to reset.
817 */
818void init_bkpinfo()
819{
820 int i;
821 log_msg(1, "Hi");
822
823 /* Initialized in same order as in the structure declaration to detect errors more easily */
824 bkpinfo->media_device = NULL;
825 for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
826 bkpinfo->media_size[i] = -1;
827 }
828 bkpinfo->boot_loader = '\0';
829 bkpinfo->boot_device[0] = '\0';
830 bkpinfo->zip_exe[0] = '\0';
831 bkpinfo->zip_suffix[0] = '\0';
832 bkpinfo->image_devs[0] = '\0';
833 bkpinfo->compression_level = 3;
834 bkpinfo->use_lzo = FALSE;
835 bkpinfo->use_gzip = 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[0] = '\0';
856 bkpinfo->call_before_iso[0] = '\0';
857 bkpinfo->call_make_iso[0] = '\0';
858 bkpinfo->call_burn_iso[0] = '\0';
859 bkpinfo->call_after_iso[0] = '\0';
860 bkpinfo->kernel_path[0] = '\0';
861 bkpinfo->nfs_mount = NULL;
862 bkpinfo->nfs_remote_dir = NULL;
863 bkpinfo->nfs_user = NULL;
864 bkpinfo->postnuke_tarball[0] = '\0';
865 bkpinfo->wipe_media_first = FALSE;
866 bkpinfo->differential = 0;
867 bkpinfo->please_dont_eject = FALSE;
868 bkpinfo->cdrw_speed = 0;
869 bkpinfo->manual_cd_tray = FALSE;
870 bkpinfo->nonbootable_backup = FALSE;
871 bkpinfo->make_cd_use_lilo = FALSE;
872 bkpinfo->use_obdr = FALSE;
873 bkpinfo->restore_mode = interactive;
874
875 setup_tmpdir(NULL);
876 sensibly_set_scratchdir();
877}
878
879
880
881
882/**
883 * Get the remaining free space (in MB) on @p partition.
884 * @param partition The partition to check free space on (either a device or a mountpoint).
885 * @return The free space on @p partition, in MB.
886 */
887long free_space_on_given_partition(char *partition)
888{
889 char *out_sz = NULL;
890 char *command = NULL;
891 long res;
892
893 assert_string_is_neither_NULL_nor_zerolength(partition);
894
895 mr_asprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
896 if (system(command)) {
897 mr_free(command);
898 return (-1);
899 } // partition does not exist
900 mr_free(command);
901
902 mr_asprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4", partition);
903 mr_asprintf(out_sz, "%s", call_program_and_get_last_line_of_output(command));
904 mr_free(command);
905
906 if (strlen(out_sz) == 0) {
907 mr_free(out_sz);
908 return (-1);
909 } // error within df, probably
910 res = atol(out_sz);
911 mr_free(out_sz);
912 return (res);
913}
914
915
916
917/**
918 * Check the user's system for sanity. Checks performed:
919 * - make sure user has enough RAM (32mb required, 64mb recommended)
920 * - make sure user has enough free space in @c /
921 * - check kernel for ramdisk support
922 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
923 * - make sure CD-ROM is unmounted
924 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
925 *
926 * @return number of problems with the user's setup (0 for success)
927 */
928int some_basic_system_sanity_checks()
929{
930
931 /*@ buffers ************ */
932 char *tmp = NULL;
933
934 /*@ int's *************** */
935 int retval = 0;
936
937 mvaddstr_and_log_it(g_currentY, 0,
938 "Checking sanity of your Linux distribution");
939#ifndef __FreeBSD__
940 if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
941 && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
942 log_it
943 ("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
945 ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
946 }
947 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
948 if (atol(tmp) < 35000) {
949 retval++;
950 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
951 }
952 if (atol(tmp) < 66000) {
953 log_to_screen("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
954 }
955 mr_free(tmp);
956#endif
957
958 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
959 retval++;
960 log_to_screen
961 ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
962 fatal_error
963 ("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. :)");
964 }
965#ifndef __FreeBSD__
966 if (run_program_and_log_output
967 ("grep ramdisk /proc/devices", FALSE)) {
968 /* Some SuSE have ramdisk as modules, so insert it first, then test again */
969 run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
970 if (run_program_and_log_output
971 ("grep ramdisk /proc/devices", FALSE)) {
972 if (!ask_me_yes_or_no
973 ("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?"))
974 {
975 // retval++;
976 log_to_screen
977 ("It looks as if your kernel lacks ramdisk and initrd support.");
978 log_to_screen
979 ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
980 }
981 }
982 }
983#endif
984 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
985 retval += whine_if_not_found("mkisofs");
986 if (system("which dvdrecord > /dev/null 2> /dev/null")) {
987 retval += whine_if_not_found("cdrecord");
988 }
989 retval += whine_if_not_found("bzip2");
990 retval += whine_if_not_found("gzip");
991 retval += whine_if_not_found("awk");
992 retval += whine_if_not_found("md5sum");
993 retval += whine_if_not_found("strings");
994 retval += whine_if_not_found("mindi");
995 retval += whine_if_not_found("buffer");
996
997 // abort if Windows partition but no ms-sys and parted
998 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
999 log_to_screen("I think you have a Windows 9x partition.");
1000 retval += whine_if_not_found("parted");
1001 }
1002
1003 if (!find_home_of_exe("cmp")) {
1004 if (!find_home_of_exe("true")) {
1005 whine_if_not_found("cmp");
1006 } else {
1007 log_to_screen
1008 ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1009 if (run_program_and_log_output
1010 ("cp -f `which true` /usr/bin/cmp", 0)) {
1011 fatal_error("Failed to create dummy 'cmp' file.");
1012 }
1013 }
1014 }
1015 run_program_and_log_output
1016 ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1017 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("mount | grep -E \"cdr(om|w)\""));
1018 if (strcmp("", tmp)) {
1019 if (strstr(tmp, "autofs")) {
1020 log_to_screen
1021 ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1022 log_to_screen
1023 ("if a CD actually is inserted. If a CD is inserted, please");
1024 log_to_screen("eject it. Thank you.");
1025 log_it
1026 ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1027 } else
1028 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1029 retval++;
1030 mr_free(tmp);
1031 fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
1032 }
1033 }
1034 mr_free(tmp);
1035
1036 run_program_and_log_output("cat /etc/fstab", 5);
1037#ifdef __FreeBSD__
1038 run_program_and_log_output("vinum printconfig", 5);
1039#else
1040 run_program_and_log_output("cat /etc/raidtab", 5);
1041#endif
1042
1043 if (run_program_and_log_output("mindi -V", 1)) {
1044 log_to_screen("Could not ascertain mindi's version number.");
1045 log_to_screen
1046 ("You have not installed Mondo and/or Mindi properly.");
1047 log_to_screen("Please uninstall and reinstall them both.");
1048 fatal_error("Please reinstall Mondo and Mindi.");
1049 }
1050 mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1051 if (run_program_and_log_output(tmp, 5)) {
1052 mr_free(tmp);
1053 mr_asprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1054 log_to_screen(tmp);
1055 log_to_screen
1056 ("Please run that command by hand and examine /var/log/mindi.log");
1057 log_to_screen
1058 ("for more information. Perhaps your /etc/fstab file is insane.");
1059 log_to_screen
1060 ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1061 retval++;
1062 }
1063 mr_free(tmp);
1064
1065 if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1066 && !does_file_exist("/etc/raidtab")) {
1067 log_to_screen
1068 ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1069 create_raidtab_from_mdstat("/etc/raidtab");
1070 }
1071
1072 if (retval) {
1073 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1074 } else {
1075 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1076 }
1077 return (retval);
1078}
1079
1080/**
1081 * Retrieve the line containing @p label from the config file.
1082 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1083 * @param label What to read from the file.
1084 * @param value Where to put it.
1085 * @return 0 for success, 1 for failure.
1086 */
1087char *read_cfg_var(char *config_file, char *label)
1088{
1089 /*@ buffer ****************************************************** */
1090 char *command = NULL;
1091 char *value = NULL;
1092
1093 /*@ end vars *************************************************** */
1094
1095 assert_string_is_neither_NULL_nor_zerolength(config_file);
1096 assert_string_is_neither_NULL_nor_zerolength(label);
1097 if (!does_file_exist(config_file)) {
1098 log_to_screen("(read_cfg_var) Cannot find %s config file", config_file);
1099 return (NULL);
1100 /* BERLIOS: not sure the sage of this one ?
1101 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1102 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1103 return (0);
1104 */
1105 } else {
1106 mr_asprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1107 mr_asprintf(value, "%s", call_program_and_get_last_line_of_output(command));
1108 mr_free(command);
1109
1110 if (strlen(value) == 0) {
1111 return (NULL);
1112 } else {
1113 return (value);
1114 }
1115 }
1116}
1117
1118
1119
1120/**
1121 * Remount @c supermount if it was unmounted earlier.
1122 */
1123void remount_supermounts_if_necessary()
1124{
1125 if (g_remount_cdrom_at_end) {
1126 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1127 }
1128 if (g_remount_floppy_at_end) {
1129 run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1130 }
1131}
1132
1133/**
1134 * Unmount @c supermount if it's mounted.
1135 */
1136void unmount_supermounts_if_necessary()
1137{
1138 if (run_program_and_log_output
1139 ("mount | grep cdrom | grep super", FALSE) == 0) {
1140 g_remount_cdrom_at_end = TRUE;
1141 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1142 }
1143 if (run_program_and_log_output
1144 ("mount | grep floppy | grep super", FALSE) == 0) {
1145 g_remount_floppy_at_end = TRUE;
1146 run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1147 }
1148}
1149
1150/**
1151 * Whether we had to stop autofs (if so, restart it at end).
1152 */
1153bool g_autofs_stopped = FALSE;
1154
1155/**
1156 * Path to the autofs initscript ("" if none exists).
1157 */
1158char g_autofs_exe[MAX_STR_LEN];
1159
1160/**
1161 * Autofs initscript in Xandros Linux distribution.
1162 */
1163#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1164
1165/**
1166 * Autofs initscript in most Linux distributions.
1167 */
1168#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1169
1170/**
1171 * If autofs is mounted, stop it (restart at end).
1172 */
1173void stop_autofs_if_necessary()
1174{
1175 char *tmp = NULL;
1176
1177 g_autofs_exe[0] = '\0';
1178 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1179 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1180 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1181 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1182 }
1183
1184 if (!g_autofs_exe[0]) {
1185 log_msg(3, "No autofs detected.");
1186 } else {
1187 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1188 // FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1189 mr_asprintf(tmp, "%s stop", g_autofs_exe);
1190 if (run_program_and_log_output(tmp, 2)) {
1191 log_it("Failed to stop autofs - I assume it wasn't running");
1192 } else {
1193 g_autofs_stopped = TRUE;
1194 log_it("Stopped autofs OK");
1195 }
1196 mr_free(tmp);
1197 }
1198}
1199
1200/**
1201 * If autofs was stopped earlier, restart it.
1202 */
1203void restart_autofs_if_necessary()
1204{
1205 char *tmp = NULL;
1206
1207 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1208 log_msg(3, "No autofs detected.");
1209 return;
1210 }
1211 mr_asprintf(tmp, "%s start", g_autofs_exe);
1212 if (run_program_and_log_output(tmp, 2)) {
1213 log_it("Failed to start autofs");
1214 } else {
1215 g_autofs_stopped = FALSE;
1216 log_it("Started autofs OK");
1217 }
1218 mr_free(tmp);
1219}
1220
1221
1222/**
1223 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1224 */
1225void mount_boot_if_necessary()
1226{
1227 char *tmp = NULL;
1228 char *command = NULL;
1229
1230 log_msg(1, "Started sub");
1231 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1232 g_boot_mountpt[0] = '\0';
1233 log_msg(4, "Done. Great. Seeting command to something");
1234 mr_asprintf(command, "%s", "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1235 log_msg(4, "Cool. Command = '%s'", command);
1236 mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
1237 mr_free(command);
1238
1239 log_msg(4, "tmp = '%s'", tmp);
1240 if (tmp[0]) {
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 mr_asprintf(tmp, "%s", 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 mr_free(tmp);
1276 }
1277 mr_free(command);
1278 }
1279 }
1280 }
1281 log_msg(1, "Ended sub");
1282}
1283
1284
1285/**
1286 * If we mounted /boot earlier, unmount it.
1287 */
1288void unmount_boot_if_necessary()
1289{
1290 char *tmp = NULL;
1291
1292 log_msg(3, "starting");
1293 if (g_boot_mountpt[0]) {
1294 mr_asprintf(tmp, "umount %s", g_boot_mountpt);
1295 if (run_program_and_log_output(tmp, 5)) {
1296 log_it("WARNING - unable to unmount /boot");
1297 }
1298 mr_free(tmp);
1299 }
1300 log_msg(3, "leaving");
1301}
1302
1303
1304
1305/**
1306 * Write a line to a configuration file. Writes a line of the form,
1307 * @c label @c value.
1308 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1309 * @param label What to call this bit of data you're writing.
1310 * @param value The bit of data you're writing.
1311 * @return 0 for success, 1 for failure.
1312 */
1313int write_cfg_var(char *config_file, char *label, char *value)
1314{
1315 /*@ buffers ***************************************************** */
1316 char *command = NULL;
1317 char *tempfile = NULL;
1318
1319
1320 /*@ end vars *************************************************** */
1321 assert_string_is_neither_NULL_nor_zerolength(config_file);
1322 assert_string_is_neither_NULL_nor_zerolength(label);
1323 assert(value != NULL);
1324 if (!does_file_exist(config_file)) {
1325 log_to_screen("(write_cfg_file) Cannot find %s config file", config_file);
1326 return (1);
1327 }
1328 mr_asprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1329 if (does_file_exist(config_file)) {
1330 mr_asprintf(command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1331 paranoid_system(command);
1332 mr_free(command);
1333 }
1334 mr_asprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1335 paranoid_system(command);
1336 mr_free(command);
1337
1338 mr_asprintf(command, "mv -f %s %s", tempfile, config_file);
1339 paranoid_system(command);
1340 mr_free(command);
1341 unlink(tempfile);
1342 mr_free(tempfile);
1343 return (0);
1344}
1345
1346
1347/**
1348 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1349 * information to the logfile.
1350 */
1351void standard_log_debug_msg(int debug_level, const char *szFile,
1352 const char *szFunction, int nLine,
1353 const char *fmt, ...)
1354{
1355 va_list args;
1356 int i;
1357 static int depth = 0;
1358 FILE *fout;
1359
1360 if (depth > 5) {
1361 depth--;
1362 return;
1363 }
1364 depth++;
1365
1366 if (debug_level <= g_loglevel) {
1367 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1368 return;
1369 }
1370
1371 // add tabs to distinguish log levels
1372 if (debug_level > 0) {
1373 for (i = 1; i < debug_level; i++)
1374 fprintf(fout, "\t");
1375 if (getpid() == g_main_pid)
1376 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1377 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1378 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1379 else
1380 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1381 }
1382 va_start(args, fmt);
1383 vfprintf(fout, fmt, args);
1384 va_end(args);
1385
1386 // do not slow down the progran if standard debug level
1387 // must be enabled: if no flush, the log won't be up-to-date if there
1388 // is a segfault
1389 //if (g_dwDebugLevel != 1)
1390
1391 fprintf(fout, "\n");
1392 paranoid_fclose(fout);
1393 }
1394 depth--;
1395}
1396
1397/**
1398 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1399 */
1400void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1401 ...) = standard_log_debug_msg;
1402
1403
1404/**
1405 * Allocate or free important globals, depending on @p mal.
1406 * @param mal If TRUE, malloc; if FALSE, free.
1407 */
1408void do_libmondo_global_strings_thing(int mal)
1409{
1410 if (mal) {
1411 malloc_string(g_boot_mountpt);
1412 malloc_string(g_mondo_home);
1413 malloc_string(g_magicdev_command);
1414 } else {
1415 paranoid_free(g_boot_mountpt);
1416 paranoid_free(g_mondo_home);
1417 paranoid_free(g_magicdev_command);
1418
1419 mr_free(g_serial_string);
1420 }
1421}
1422
1423/**
1424 * Allocate important globals.
1425 * @see do_libmondo_global_strings_thing
1426 */
1427void malloc_libmondo_global_strings(void)
1428{
1429 do_libmondo_global_strings_thing(1);
1430}
1431
1432/**
1433 * Free important globals.
1434 * @see do_libmondo_global_strings_thing
1435 */
1436void free_libmondo_global_strings(void)
1437{
1438 do_libmondo_global_strings_thing(0);
1439}
1440
1441
1442
1443/**
1444 * Stop @c magicdev if it's running.
1445 * The command used to start it is saved in @p g_magicdev_command.
1446 */
1447void stop_magicdev_if_necessary()
1448{
1449 strcpy(g_magicdev_command,
1450 call_program_and_get_last_line_of_output
1451 ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1452 if (g_magicdev_command[0]) {
1453 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1454 paranoid_system("killall magicdev");
1455 }
1456}
1457
1458
1459/**
1460 * Restart magicdev if it was stopped.
1461 */
1462void restart_magicdev_if_necessary()
1463{
1464 char *tmp = NULL;
1465
1466 if (g_magicdev_command && g_magicdev_command[0]) {
1467 mr_asprintf(tmp, "%s &", g_magicdev_command);
1468 paranoid_system(tmp);
1469 mr_free(tmp);
1470 }
1471}
1472
1473/* @} - end of utilityGroup */
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