source: MondoRescue/branches/2.2.7/mondo/src/common/libmondo-tools.c@ 2030

Last change on this file since 2030 was 2030, checked in by Bruno Cornec, 16 years ago
  • Fix #252
  • Improve OCFS2 support (ocfs2 is a SANE_FORMAT)
  • Property svn:keywords set to Id
File size: 40.6 KB
Line 
1/*
2 $Id: libmondo-tools.c 2030 2008-10-02 23:50:44Z 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 "mondostructures.h"
13#include "lib-common-externs.h"
14#include "libmondo-tools.h"
15#include "libmondo-gui-EXT.h"
16#include "libmondo-files-EXT.h"
17#include "libmondo-fork-EXT.h"
18#include "libmondo-raid-EXT.h"
19#include "libmondo-devices-EXT.h"
20#include <sys/socket.h>
21#include <netdb.h>
22#include <stdlib.h>
23#include <netinet/in.h>
24#include <arpa/inet.h>
25#include <sys/utsname.h>
26
27/*@unused@*/
28//static char cvsid[] = "$Id: libmondo-tools.c 2030 2008-10-02 23:50:44Z bruno $";
29
30extern int g_tape_buffer_size_MB;
31extern char *g_serial_string;
32extern bool g_text_mode;
33extern int g_currentY;
34extern int g_current_media_number;
35extern char *MONDO_LOGFILE;
36
37/* Reference to global bkpinfo */
38extern struct s_bkpinfo *bkpinfo;
39
40/**
41 * @addtogroup globalGroup
42 * @{
43 */
44bool g_remount_cdrom_at_end, ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
45 g_remount_floppy_at_end; ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
46bool g_cd_recovery; ///< TRUE if we're making an "autonuke" backup.
47double g_kernel_version;
48
49/**
50 * The place where /boot is mounted.
51 */
52char *g_boot_mountpt = NULL;
53
54/**
55 * The location of Mondo's home directory.
56 */
57char *g_mondo_home = NULL;
58
59/**
60 * The serial string (used to differentiate between backups) of the current backup.
61 */
62char *g_serial_string = NULL;
63
64/**
65 * The location where tmpfs is mounted, or "" if it's not mounted.
66char *g_tmpfs_mountpt = NULL;
67 */
68char *g_magicdev_command = NULL;
69
70/**
71 * The default maximum level to log messages at or below.
72 */
73int g_loglevel = DEFAULT_DEBUG_LEVEL;
74
75/* @} - end of globalGroup */
76
77
78extern pid_t g_buffer_pid;
79extern pid_t g_main_pid;
80
81extern t_bkptype g_backup_media_type;
82
83extern bool am_I_in_disaster_recovery_mode(void);
84
85/* Return a string containing the date */
86char *mr_date(void) {
87
88 time_t tcurr;
89
90 tcurr = time(NULL);
91 return(ctime(&tcurr));
92}
93
94/*-----------------------------------------------------------*/
95
96
97/**
98 * @addtogroup utilityGroup
99 * @{
100 */
101/**
102 * Assertion handler. Prints a friendly message to the user,
103 * offering to ignore all, dump core, break to debugger,
104 * exit, or ignore. Intended to be used with an assert() macro.
105 *
106 * @param file The file in which the assertion triggered.
107 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
108 * @param line The line number of the assert() statement.
109 * @param exp The expression that failed (as a string).
110 */
111void _mondo_assert_fail(const char *file,
112 const char *function, int line, const char *exp)
113{
114 static int ignoring_assertions = 0;
115 bool is_valid = TRUE;
116
117 log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
118 function);
119 if (ignoring_assertions) {
120 log_it("Well, the user doesn't care...");
121 return;
122 }
123#ifndef _XWIN
124 if (!g_text_mode)
125 newtSuspend();
126#endif
127 printf("ASSERTION FAILED: `%s'\n", exp);
128 printf("\tat %s:%d in %s\n\n", file, line, function);
129 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
130 do {
131 is_valid = TRUE;
132 switch (toupper(getchar())) {
133 case 'A': // ignore (A)ll
134 ignoring_assertions = 1;
135 break;
136 case 'B': // a(B)ort
137 signal(SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
138 raise(SIGABRT);
139 break; /* "can't get here" */
140 case 'D': // (D)ebug, aka asm("int 3")
141#ifdef __IA32__
142 __asm__ __volatile__("int $3"); // break to debugger
143#endif
144 break;
145 case 'E': // (E)xit
146 fatal_error("Failed assertion -- see above for details");
147 break; /* "can't get here" */
148 case 'I': // (I)gnore
149 break;
150 /* These next two work as follows:
151 the `default' catches the user's invalid choice and says so;
152 the '\n' catches the newline on the end and prints the prompt again.
153 */
154 case '\n':
155 printf
156 ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
157 break;
158 default:
159 is_valid = FALSE;
160 printf("Invalid choice.\n");
161 break;
162 }
163 } while (!is_valid);
164
165 if (ignoring_assertions) {
166 log_it("Ignoring ALL assertions from now on.");
167 } else {
168 log_it("Ignoring assertion: %s", exp);
169 }
170
171 getchar(); // skip \n
172
173#ifndef _XWIN
174 if (!g_text_mode)
175 newtResume();
176#endif
177}
178
179/**
180 * Clean's up users' KDE desktops.
181 * @bug Details about this function are unknown.
182 */
183void clean_up_KDE_desktop_if_necessary(void)
184{
185 char *tmp;
186
187 malloc_string(tmp);
188 strcpy(tmp,
189 "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
190file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
191awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
192else { print $0;};}' $file.old > $file ; fi ; done");
193 run_program_and_log_output(tmp, 5);
194 paranoid_free(tmp);
195}
196
197
198/**
199 * Locate mondoarchive's home directory. Searches in /usr/local/mondo, /usr/share/mondo,
200 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
201 *
202 * @param home_sz String to store the home directory ("" if it could not be found).
203 * @return 0 for success, nonzero for failure.
204 */
205int find_and_store_mondoarchives_home(char *home_sz)
206{
207 assert(home_sz != NULL);
208 strcpy(home_sz, MONDO_SHARE);
209 return (0);
210}
211
212
213char *get_architecture(void) {
214#ifdef __IA32__
215# ifdef __X86_64__
216 return ("x86_64");
217# else
218 return ("i386");
219# endif
220#endif
221#ifdef __IA64__
222 return ("ia64");
223#endif
224 return ("unknown");
225}
226
227
228char *get_uname_m(void) {
229
230 struct utsname utsn;
231 char *tmp = NULL;
232
233 uname(&utsn);
234 asprintf(&tmp, utsn.machine);
235 return (tmp);
236}
237
238
239
240double get_kernel_version(void)
241{
242 char *p, tmp[200];
243 double d;
244#ifdef __FreeBSD__
245 // JOSH - FIXME :)
246 d = 5.2; // :-)
247#else
248 strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
249 p = strchr(tmp, '.');
250 if (p) {
251 p = strchr(++p, '.');
252 if (p) {
253 while (*p) {
254 *p = *(p + 1);
255 p++;
256 }
257 }
258 }
259// log_msg(1, "tmp = '%s'", tmp);
260 d = atof(tmp);
261#endif
262 log_msg(1, "g_kernel_version = %f", d);
263 return (d);
264}
265
266
267
268
269
270/**
271 * Get the current time.
272 * @return number of seconds since the epoch.
273 */
274long get_time()
275{
276 return (long) time((void *) 0);
277}
278
279
280
281
282
283
284
285/**
286 * Initialize a RAID volume structure, setting fields to zero. The
287 * actual hard drive is unaffected.
288 *
289 * @param raidrec The RAID volume structure to initialize.
290 * @note This function is system dependent.
291 */
292#ifdef __FreeBSD__
293void initialize_raidrec(struct vinum_volume *raidrec)
294{
295 int i, j;
296 raidrec->volname[0] = '\0';
297 raidrec->plexes = 0;
298 for (i = 0; i < 9; ++i) {
299 raidrec->plex[i].raidlevel = -1;
300 raidrec->plex[i].stripesize = 0;
301 raidrec->plex[i].subdisks = 0;
302 for (j = 0; j < 9; ++j) {
303 strcpy(raidrec->plex[i].sd[j].which_device, "");
304 }
305 }
306}
307#else
308void initialize_raidrec(struct raid_device_record *raidrec)
309{
310 assert(raidrec != NULL);
311 raidrec->raid_device[0] = '\0';
312 raidrec->raid_level = -9;
313 raidrec->persistent_superblock = 1;
314 raidrec->chunk_size = 64;
315 raidrec->parity = -1;
316 raidrec->data_disks.entries = 0;
317 raidrec->spare_disks.entries = 0;
318 raidrec->parity_disks.entries = 0;
319 raidrec->failed_disks.entries = 0;
320 raidrec->additional_vars.entries = 0;
321}
322#endif
323
324
325
326
327/**
328 * Insert modules that Mondo requires.
329 * Currently inserts @c msdos, @c vfat, and @c loop for Linux;
330 * @c msdosfs and @c ext2fs for FreeBSD.
331 */
332void insmod_crucial_modules(void)
333{
334#ifdef __FreeBSD__
335 system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
336 system("kldstat | grep ext2fs || kldload ext2fs 2> /dev/null");
337#else
338 system("modprobe -a msdos vfat loop &> /dev/null");
339#endif
340}
341
342
343/**
344 * Log a trace message to the trace file.
345 * @bug This function seems orphaned. Please remove.
346 */
347void log_trace(char *o)
348{
349 /*@ pointers **************************************************** */
350 FILE *fout;
351
352 /*@ buffers ***************************************************** */
353 char output[MAX_STR_LEN];
354
355 /*@ int ****************************************************** */
356 int i;
357
358 /*@ end vars *************************************************** */
359
360 if (o[0] == '\0') {
361 return;
362 }
363 strcpy(output, o);
364 i = (int) strlen(output);
365 if (i <= 0) {
366 return;
367 }
368 if (output[i - 1] < 32) {
369 output[i - 1] = '\0';
370 }
371 if (g_text_mode
372 /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
373 printf("%s\n", output);
374 }
375
376 fout = fopen(MONDO_TRACEFILE, "a");
377 if (fout) {
378 fprintf(fout, "%s\n", output);
379 paranoid_fclose(fout);
380 } else {
381 log_OS_error("Cannot write to tracefile");
382 }
383}
384
385
386
387
388
389/**
390 * Finish configuring the backup information structure. Call this function
391 * to set the parameters that depend on those that can be given on the command
392 * line.
393 *
394 * @param bkpinfo The backup information structure. Fields modified/used:
395 * - Used: @c bkpinfo->backup_data
396 * - Used: @c bkpinfo->backup_media_type
397 * - Used: @c bkpinfo->cdrw_speed
398 * - Used: @c bkpinfo->compression_level
399 * - Used: @c bkpinfo->include_paths
400 * - Used: @c bkpinfo->prefix
401 * - Used: @c bkpinfo->isodir
402 * - Used: @c bkpinfo->manual_cd_tray
403 * - Used: @c bkpinfo->make_cd_use_lilo
404 * - Used: @c bkpinfo->media_device
405 * - Used: @c bkpinfo->nfs_mount
406 * - Used: @c bkpinfo->nonbootable_backup
407 * - Used: @c bkpinfo->scratchdir
408 * - Used: @c bkpinfo->tmpdir
409 * - Used: @c bkpinfo->use_lzo
410 * - Modified: @c bkpinfo->call_before_iso
411 * - Modified: @c bkpinfo->call_make_iso
412 * - Modified: @c bkpinfo->optimal_set_size
413 * - Modified: @c bkpinfo->zip_exe
414 * - Modified: @c bkpinfo->zip_suffix
415 *
416 * @return number of errors, or 0 for success.
417 * @note Also creates directories that are specified in the @c bkpinfo structure but
418 * do not exist.
419 */
420int post_param_configuration()
421{
422 char *extra_cdrom_params;
423 char *mondo_mkisofs_sz;
424 char *command;
425 char *mtpt;
426 char *hostname, *ip_address;
427 int retval = 0;
428 char *colon;
429 char *cdr_exe;
430 char *tmp;
431 char call_before_iso_user[MAX_STR_LEN] = "\0";
432 /*
433 long avm = 0;
434 int rdsiz_MB;
435 */
436 char *iso_dev;
437 char *iso_mnt;
438 char *iso_tmp;
439 char *iso_path;
440
441 assert(bkpinfo != NULL);
442 malloc_string(extra_cdrom_params);
443 malloc_string(mondo_mkisofs_sz);
444 malloc_string(command);
445 malloc_string(mtpt);
446 malloc_string(hostname);
447 malloc_string(ip_address);
448 malloc_string(cdr_exe);
449 malloc_string(tmp);
450 malloc_string(iso_dev);
451 malloc_string(iso_mnt);
452 malloc_string(iso_tmp);
453 malloc_string(iso_path);
454 bkpinfo->optimal_set_size =
455 (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
456 1024;
457
458 log_msg(1, "Foo");
459 if (bkpinfo->backup_media_type == tape) {
460 log_msg(1, "Bar");
461 sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
462 log_msg(1, "tmp = '%s'", tmp);
463 if (run_program_and_log_output(tmp, 3)) {
464 fatal_error
465 ("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.");
466 }
467 }
468 make_hole_for_dir(bkpinfo->scratchdir);
469 if (bkpinfo->backup_media_type == iso)
470 make_hole_for_dir(bkpinfo->isodir);
471
472 run_program_and_log_output("uname -a", 5);
473 run_program_and_log_output("cat /etc/*-release", 5);
474 run_program_and_log_output("cat /etc/*issue*", 5);
475 /*
476 sprintf(g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
477 sprintf(command, "mkdir -p %s", g_tmpfs_mountpt);
478 paranoid_system(command);
479 rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
480 */
481#ifdef __FreeBSD__
482 /*
483 strcpy(tmp,
484 call_program_and_get_last_line_of_output
485 ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
486 avm += atol(tmp);
487 strcpy(tmp,
488 call_program_and_get_last_line_of_output
489 ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
490 avm += atol(tmp);
491 sprintf(command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
492 g_tmpfs_mountpt);
493 */
494#else
495 /*
496 strcpy(tmp,
497 call_program_and_get_last_line_of_output
498 ("free | grep ':' | tr -s ' ' '\t' | cut -f2 | head -n1"));
499 avm += atol(tmp);
500 sprintf(command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
501 g_tmpfs_mountpt, rdsiz_MB, 'm');
502 */
503 run_program_and_log_output("cat /proc/cpuinfo", 5);
504 run_program_and_log_output
505 ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
506 5);
507#endif
508 /*
509 if (avm / 1024 > rdsiz_MB * 3) {
510 if (run_program_and_log_output(command, 5)) {
511 g_tmpfs_mountpt[0] = '\0';
512 log_it("Failed to mount tmpfs");
513 } else {
514 log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
515 }
516 } else {
517 g_tmpfs_mountpt[0] = '\0';
518 log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
519 }
520 */
521
522 if (bkpinfo->use_lzo) {
523 strcpy(bkpinfo->zip_exe, "lzop");
524 strcpy(bkpinfo->zip_suffix, "lzo");
525 } else if (bkpinfo->use_gzip) {
526 strcpy(bkpinfo->zip_exe, "gzip");
527 strcpy(bkpinfo->zip_suffix, "gz");
528 } else if (bkpinfo->compression_level != 0) {
529 strcpy(bkpinfo->zip_exe, "bzip2");
530 strcpy(bkpinfo->zip_suffix, "bz2");
531 } else {
532 bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
533 }
534
535// DVD
536
537 if (bkpinfo->backup_media_type == dvd) {
538 extra_cdrom_params[0] = '\0';
539 mondo_mkisofs_sz[0] = '\0';
540 if (find_home_of_exe("growisofs")) {
541 strcpy(cdr_exe, "growisofs");
542 } // unlikely to be used
543 else {
544 fatal_error("Please install growisofs.");
545 }
546 if (bkpinfo->nonbootable_backup) {
547 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
548 } else if
549#ifdef __FreeBSD__
550 (TRUE)
551#else
552 (bkpinfo->make_cd_use_lilo)
553#endif
554#ifdef __IA64__
555 {
556 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
557 }
558#else
559 {
560 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
561 }
562#endif
563 else
564 {
565 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
566 }
567 if (bkpinfo->manual_cd_tray) {
568 fatal_error("Manual CD tray + DVD not supported yet.");
569 // -m isn't supported by growisofs, BTW...
570 } else {
571 sprintf(bkpinfo->call_make_iso,
572 "%s %s -Z %s . 2>> _ERR_",
573 mondo_mkisofs_sz,
574 extra_cdrom_params, bkpinfo->media_device);
575 }
576 if (getenv ("SUDO_COMMAND")) {
577 sprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
578 if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
579 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
580 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
581 }
582 }
583 log_msg(2, "call_make_iso (DVD res) is ... %s",
584 bkpinfo->call_make_iso);
585 } // end of DVD code
586
587// CD-R or CD-RW
588 if (bkpinfo->backup_media_type == cdrw
589 || bkpinfo->backup_media_type == cdr) {
590 extra_cdrom_params[0] = '\0';
591 if (!bkpinfo->manual_cd_tray) {
592 strcat(extra_cdrom_params, "-waiti ");
593 }
594 if (bkpinfo->backup_media_type == cdrw) {
595 strcat(extra_cdrom_params, "blank=fast ");
596 }
597 if (find_home_of_exe("cdrecord")) {
598 strcpy(cdr_exe, "cdrecord");
599 } else if (find_home_of_exe("dvdrecord")) {
600 strcpy(cdr_exe, "dvdrecord");
601 } else {
602 fatal_error("Please install either cdrecord or dvdrecord.");
603 }
604 if (bkpinfo->nonbootable_backup) {
605 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
606 } else if
607#ifdef __FreeBSD__
608 (TRUE)
609#else
610 (bkpinfo->make_cd_use_lilo)
611#endif
612#ifdef __IA64__
613 {
614 strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
615 }
616#else
617 {
618 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
619 }
620#endif
621 else
622 {
623 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
624 }
625 if (bkpinfo->manual_cd_tray) {
626 if (bkpinfo->call_before_iso[0] == '\0') {
627 sprintf(bkpinfo->call_before_iso,
628 "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_",
629 mondo_mkisofs_sz, bkpinfo->tmpdir);
630 } else {
631 strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
632 sprintf (bkpinfo->call_before_iso,
633 "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )",
634 mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
635 }
636 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
637 sprintf(bkpinfo->call_make_iso,
638 "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS,
639 cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
640 extra_cdrom_params, bkpinfo->media_device,
641 bkpinfo->cdrw_speed, bkpinfo->tmpdir);
642 } else {
643 sprintf(bkpinfo->call_make_iso,
644 "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
645 mondo_mkisofs_sz, cdr_exe,
646 (bkpinfo->please_dont_eject) ? " " : "-eject",
647 extra_cdrom_params, bkpinfo->media_device,
648 bkpinfo->cdrw_speed);
649 }
650 } // end of CD code
651
652 /*
653 if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
654 {
655 sprintf (tmp,
656 "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
657 bkpinfo->media_device, bkpinfo->internal_tape_block_size);
658 if (system(tmp))
659 {
660 retval++;
661 fprintf (stderr,
662 "Cannot write to tape device. Is the tape set read-only?\n");
663 }
664 } // end of tape code
665 */
666
667
668 if (bkpinfo->backup_media_type == iso) {
669
670/* Patch by Conor Daly <conor.daly@met.ie>
671 * 23-june-2004
672 * Break up isodir into iso_mnt and iso_path
673 * These will be used along with iso-dev at restore time
674 * to locate the ISOs where ever they're mounted
675 */
676
677 log_it("isodir = %s", bkpinfo->isodir);
678 sprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1",
679 bkpinfo->isodir);
680 log_it("command = %s", command);
681 log_it("res of it = %s",
682 call_program_and_get_last_line_of_output(command));
683 sprintf(iso_dev, "%s",
684 call_program_and_get_last_line_of_output(command));
685 sprintf(tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
686 write_one_liner_data_file(tmp,
687 call_program_and_get_last_line_of_output
688 (command));
689
690 sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
691 iso_dev);
692 log_it("command = %s", command);
693 log_it("res of it = %s",
694 call_program_and_get_last_line_of_output(command));
695 sprintf(iso_mnt, "%s",
696 call_program_and_get_last_line_of_output(command));
697 sprintf(tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
698 write_one_liner_data_file(tmp,
699 call_program_and_get_last_line_of_output
700 (command));
701 log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
702 sprintf(iso_tmp, "%s", bkpinfo->isodir);
703 if (strlen(iso_tmp) < strlen(iso_mnt)) {
704 iso_path[0] = '\0';
705 } else {
706 sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
707 }
708 sprintf(tmp, "%s/ISODIR", bkpinfo->tmpdir);
709 write_one_liner_data_file(tmp, iso_path);
710 log_it("isodir: %s", iso_path);
711 sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
712 write_one_liner_data_file(tmp, bkpinfo->prefix);
713 log_it("iso-prefix: %s", bkpinfo->prefix);
714
715/* End patch */
716 } // end of iso code
717
718 if (bkpinfo->backup_media_type == nfs) {
719 strcpy(hostname, bkpinfo->nfs_mount);
720 colon = strchr(hostname, ':');
721 if (!colon) {
722 log_it("nfs mount doesn't have a colon in it");
723 retval++;
724 } else {
725 struct hostent *hent;
726
727 *colon = '\0';
728 hent = gethostbyname(hostname);
729 if (!hent) {
730 log_it("Can't resolve NFS mount (%s): %s", hostname,
731 hstrerror(h_errno));
732 retval++;
733 } else {
734 strcpy(ip_address, inet_ntoa
735 ((struct in_addr)
736 *((struct in_addr *) hent->h_addr)));
737 strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
738 strcpy(bkpinfo->nfs_mount, ip_address);
739 }
740 }
741 store_nfs_config();
742 }
743
744 log_it("Finished processing incoming params");
745 if (retval) {
746 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
747 }
748 if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
749 log_it("tmpdir or scratchdir are blank/missing");
750 retval++;
751 }
752 if (bkpinfo->include_paths[0] == '\0') {
753 // fatal_error ("Why no backup path?");
754 strcpy(bkpinfo->include_paths, "/");
755 }
756 chmod(bkpinfo->scratchdir, 0700);
757 g_backup_media_type = bkpinfo->backup_media_type;
758 paranoid_free(mtpt);
759 paranoid_free(extra_cdrom_params);
760 paranoid_free(mondo_mkisofs_sz);
761 paranoid_free(command);
762 paranoid_free(hostname);
763 paranoid_free(ip_address);
764 paranoid_free(cdr_exe);
765 paranoid_free(tmp);
766 paranoid_free(iso_dev);
767 paranoid_free(iso_mnt);
768 paranoid_free(iso_tmp);
769 paranoid_free(iso_path);
770 return (retval);
771}
772
773
774
775/**
776 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
777 * Seeds the random-number generator, loads important modules, checks the sanity
778 * of the user's Linux distribution, and deletes logfile.
779 * @param bkpinfo The backup information structure. Will be initialized.
780 * @return number of errors (0 for success)
781 */
782int pre_param_configuration()
783{
784 int res = 0;
785 char *tmp = NULL;
786
787 make_hole_for_dir(MNT_CDROM);
788 assert(bkpinfo != NULL);
789 srandom((unsigned long) (time(NULL)));
790 insmod_crucial_modules();
791 if (bkpinfo->disaster_recovery) {
792 if (!does_nonMS_partition_exist()) {
793 fatal_error
794 ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
795 }
796 }
797
798 unlink(MONDO_TRACEFILE);
799 asprintf(&tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
800 run_program_and_log_output(tmp, FALSE);
801 paranoid_free(tmp);
802 if (find_and_store_mondoarchives_home(g_mondo_home)) {
803 fprintf(stderr,
804 "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");
805 res++;
806 return (res);
807 }
808 res += some_basic_system_sanity_checks();
809 if (res) {
810 log_it("Your distribution did not pass Mondo's sanity test.");
811 }
812 g_current_media_number = 1;
813 bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
814 return (res);
815}
816
817void setup_tmpdir(char *path) {
818
819 char *tmp = NULL;
820 char *p = NULL;
821
822 if ((bkpinfo->tmpdir != NULL) && (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL)) {
823 /* purging a potential old tmpdir */
824 asprintf(&tmp,"rm -Rf %s",bkpinfo->tmpdir);
825 system(tmp);
826 paranoid_free(tmp);
827 }
828
829 if (path != NULL) {
830 asprintf(&tmp, "%s/mondo.tmp.XXXXXX", path);
831 } else if (getenv("TMPDIR")) {
832 asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
833 } else if (getenv("TMP")) {
834 asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
835 } else {
836 asprintf(&tmp, "/tmp/mondo.tmp.XXXXXX");
837 }
838 p = mkdtemp(tmp);
839 if (p == NULL) {
840 log_it("Failed to create global tmp directory %s for Mondo.",tmp);
841 finish(-1);
842 }
843 strcpy(bkpinfo->tmpdir,p);
844 paranoid_free(tmp);
845}
846
847
848/**
849 * Reset all fields of the backup information structure to a sensible default.
850 * @param bkpinfo The @c bkpinfo to reset.
851 */
852void reset_bkpinfo()
853{
854 int i;
855
856 log_msg(1, "Hi");
857 assert(bkpinfo != NULL);
858 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
859
860 bkpinfo->media_device[0] = '\0';
861 for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
862 bkpinfo->media_size[i] = -1;
863 }
864 bkpinfo->boot_loader = '\0';
865 bkpinfo->boot_device[0] = '\0';
866 bkpinfo->zip_exe[0] = '\0';
867 bkpinfo->zip_suffix[0] = '\0';
868 bkpinfo->image_devs[0] = '\0';
869 bkpinfo->compression_level = 3;
870 bkpinfo->use_lzo = FALSE;
871 bkpinfo->use_gzip = FALSE;
872 bkpinfo->do_not_compress_these[0] = '\0';
873 bkpinfo->verify_data = FALSE;
874 bkpinfo->backup_data = FALSE;
875 bkpinfo->restore_data = FALSE;
876 bkpinfo->use_star = FALSE;
877 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
878 bkpinfo->disaster_recovery =
879 (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
880 if (bkpinfo->disaster_recovery) {
881 strcpy(bkpinfo->isodir, "/");
882 } else {
883 strcpy(bkpinfo->isodir, "/var/cache/mondo");
884 }
885 strcpy(bkpinfo->prefix, STD_PREFIX);
886 sensibly_set_tmpdir_and_scratchdir();
887
888 bkpinfo->optimal_set_size = 0;
889 strcpy(bkpinfo->include_paths, "/");
890 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
891 bkpinfo->include_paths[0] = '\0';
892 bkpinfo->exclude_paths[0] = '\0';
893 bkpinfo->restore_path[0] = '\0';
894 bkpinfo->call_before_iso[0] = '\0';
895 bkpinfo->call_make_iso[0] = '\0';
896 bkpinfo->call_burn_iso[0] = '\0';
897 bkpinfo->call_after_iso[0] = '\0';
898 bkpinfo->kernel_path[0] = '\0';
899 bkpinfo->nfs_mount[0] = '\0';
900 bkpinfo->nfs_remote_dir[0] = '\0';
901 bkpinfo->postnuke_tarball[0] = '\0';
902 bkpinfo->wipe_media_first = FALSE;
903 bkpinfo->differential = 0;
904 bkpinfo->please_dont_eject = FALSE;
905 bkpinfo->cdrw_speed = 0;
906 bkpinfo->manual_cd_tray = FALSE;
907 bkpinfo->nonbootable_backup = FALSE;
908 bkpinfo->make_cd_use_lilo = FALSE;
909 bkpinfo->use_obdr = FALSE;
910 bkpinfo->restore_mode = interactive;
911}
912
913
914
915
916/**
917 * Get the remaining free space (in MB) on @p partition.
918 * @param partition The partition to check free space on (either a device or a mountpoint).
919 * @return The free space on @p partition, in MB.
920 */
921long free_space_on_given_partition(char *partition)
922{
923 char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
924 long res;
925
926 assert_string_is_neither_NULL_nor_zerolength(partition);
927
928 sprintf(command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
929 if (system(command)) {
930 return (-1);
931 } // partition does not exist
932 sprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
933 partition);
934 strcpy(out_sz, call_program_and_get_last_line_of_output(command));
935 if (strlen(out_sz) == 0) {
936 return (-1);
937 } // error within df, probably
938 res = atol(out_sz);
939 return (res);
940}
941
942
943
944/**
945 * Check the user's system for sanity. Checks performed:
946 * - make sure user has enough RAM (32mb required, 64mb recommended)
947 * - make sure user has enough free space in @c /
948 * - check kernel for ramdisk support
949 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
950 * - make sure CD-ROM is unmounted
951 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
952 *
953 * @return number of problems with the user's setup (0 for success)
954 */
955int some_basic_system_sanity_checks()
956{
957
958 /*@ buffers ************ */
959 char tmp[MAX_STR_LEN];
960 // char command[MAX_STR_LEN];
961
962 /*@ int's *************** */
963 int retval = 0;
964
965 mvaddstr_and_log_it(g_currentY, 0,
966 "Checking sanity of your Linux distribution");
967#ifndef __FreeBSD__
968 if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
969 && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
970 log_it
971 ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
972 run_program_and_log_output
973 ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
974 }
975 strcpy(tmp,
976 call_program_and_get_last_line_of_output
977 ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
978 if (atol(tmp) < 35000) {
979 retval++;
980 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
981 }
982 if (atol(tmp) < 66000) {
983 log_to_screen
984 ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
985 }
986#endif
987
988 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
989 retval++;
990 log_to_screen
991 ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
992 fatal_error
993 ("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. :)");
994 }
995#ifndef __FreeBSD__
996 if (run_program_and_log_output
997 ("grep ramdisk /proc/devices", FALSE)) {
998 if (!ask_me_yes_or_no
999 ("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?"))
1000 {
1001 // retval++;
1002 log_to_screen
1003 ("It looks as if your kernel lacks ramdisk and initrd support.");
1004 log_to_screen
1005 ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
1006 }
1007 }
1008#endif
1009 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
1010 retval += whine_if_not_found("mkisofs");
1011 if (system("which dvdrecord > /dev/null 2> /dev/null")) {
1012 retval += whine_if_not_found("cdrecord");
1013 }
1014 retval += whine_if_not_found("bzip2");
1015 retval += whine_if_not_found("gzip");
1016 retval += whine_if_not_found("awk");
1017 retval += whine_if_not_found("md5sum");
1018 retval += whine_if_not_found("strings");
1019 retval += whine_if_not_found("mindi");
1020 retval += whine_if_not_found("buffer");
1021
1022 // abort if Windows partition but no ms-sys and parted
1023 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
1024 log_to_screen("I think you have a Windows 9x partition.");
1025 retval += whine_if_not_found("parted");
1026 }
1027
1028 if (!find_home_of_exe("cmp")) {
1029 if (!find_home_of_exe("true")) {
1030 whine_if_not_found("cmp");
1031 } else {
1032 log_to_screen
1033 ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1034 if (run_program_and_log_output
1035 ("cp -f `which true` /usr/bin/cmp", 0)) {
1036 fatal_error("Failed to create dummy 'cmp' file.");
1037 }
1038 }
1039 }
1040 run_program_and_log_output
1041 ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1042 strcpy(tmp,
1043 call_program_and_get_last_line_of_output
1044 ("mount | grep -E \"cdr(om|w)\""));
1045 if (strcmp("", tmp)) {
1046 if (strstr(tmp, "autofs")) {
1047 log_to_screen
1048 ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1049 log_to_screen
1050 ("if a CD actually is inserted. If a CD is inserted, please");
1051 log_to_screen("eject it. Thank you.");
1052 log_it
1053 ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1054 } else
1055 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1056 retval++;
1057 fatal_error
1058 ("Your CD-ROM drive is mounted. Please unmount it.");
1059 }
1060 }
1061
1062 run_program_and_log_output("cat /etc/fstab", 5);
1063#ifdef __FreeBSD__
1064 run_program_and_log_output("vinum printconfig", 5);
1065#else
1066 run_program_and_log_output("cat /etc/raidtab", 5);
1067#endif
1068
1069 if (run_program_and_log_output("mindi -V", 1)) {
1070 log_to_screen("Could not ascertain mindi's version number.");
1071 log_to_screen
1072 ("You have not installed Mondo and/or Mindi properly.");
1073 log_to_screen("Please uninstall and reinstall them both.");
1074 fatal_error("Please reinstall Mondo and Mindi.");
1075 }
1076 sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1077 if (run_program_and_log_output(tmp, 5)) {
1078 sprintf(tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1079 log_to_screen(tmp);
1080 log_to_screen
1081 ("Please run that command by hand and examine /var/log/mindi.log");
1082 log_to_screen
1083 ("for more information. Perhaps your /etc/fstab file is insane.");
1084 log_to_screen
1085 ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1086 retval++;
1087 }
1088
1089 if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1090 && !does_file_exist("/etc/raidtab")) {
1091 log_to_screen
1092 ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1093 create_raidtab_from_mdstat("/etc/raidtab");
1094 }
1095
1096 if (retval) {
1097 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1098 } else {
1099 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1100 }
1101 return (retval);
1102}
1103
1104/**
1105 * Retrieve the line containing @p label from the config file.
1106 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1107 * @param label What to read from the file.
1108 * @param value Where to put it.
1109 * @return 0 for success, 1 for failure.
1110 */
1111int read_cfg_var(char *config_file, char *label, char *value)
1112{
1113 /*@ buffer ****************************************************** */
1114 char command[MAX_STR_LEN * 2];
1115 char tmp[MAX_STR_LEN];
1116
1117 /*@ end vars *************************************************** */
1118
1119 assert_string_is_neither_NULL_nor_zerolength(config_file);
1120 assert_string_is_neither_NULL_nor_zerolength(label);
1121 if (!does_file_exist(config_file)) {
1122 sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1123 config_file);
1124 log_to_screen(tmp);
1125 value[0] = '\0';
1126 return (1);
1127 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1128 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1129 return (0);
1130 } else {
1131 sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1132 label, config_file);
1133 strcpy(value, call_program_and_get_last_line_of_output(command));
1134 if (strlen(value) == 0) {
1135 return (1);
1136 } else {
1137 return (0);
1138 }
1139 }
1140}
1141
1142
1143
1144/**
1145 * Remount @c supermount if it was unmounted earlier.
1146 */
1147void remount_supermounts_if_necessary()
1148{
1149 if (g_remount_cdrom_at_end) {
1150 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1151 }
1152 if (g_remount_floppy_at_end) {
1153 run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1154 }
1155}
1156
1157/**
1158 * Unmount @c supermount if it's mounted.
1159 */
1160void unmount_supermounts_if_necessary()
1161{
1162 if (run_program_and_log_output
1163 ("mount | grep cdrom | grep super", FALSE) == 0) {
1164 g_remount_cdrom_at_end = TRUE;
1165 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1166 }
1167 if (run_program_and_log_output
1168 ("mount | grep floppy | grep super", FALSE) == 0) {
1169 g_remount_floppy_at_end = TRUE;
1170 run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1171 }
1172}
1173
1174/**
1175 * Whether we had to stop autofs (if so, restart it at end).
1176 */
1177bool g_autofs_stopped = FALSE;
1178
1179/**
1180 * Path to the autofs initscript ("" if none exists).
1181 */
1182char g_autofs_exe[MAX_STR_LEN];
1183
1184/**
1185 * Autofs initscript in Xandros Linux distribution.
1186 */
1187#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1188
1189/**
1190 * Autofs initscript in most Linux distributions.
1191 */
1192#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1193
1194/**
1195 * If autofs is mounted, stop it (restart at end).
1196 */
1197void stop_autofs_if_necessary()
1198{
1199 char tmp[MAX_STR_LEN];
1200
1201 g_autofs_exe[0] = '\0';
1202 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1203 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1204 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1205 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1206 }
1207
1208 if (!g_autofs_exe[0]) {
1209 log_msg(3, "No autofs detected.");
1210 } else {
1211 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1212// FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1213 sprintf(tmp, "%s stop", g_autofs_exe);
1214 if (run_program_and_log_output(tmp, 2)) {
1215 log_it("Failed to stop autofs - I assume it wasn't running");
1216 } else {
1217 g_autofs_stopped = TRUE;
1218 log_it("Stopped autofs OK");
1219 }
1220 }
1221}
1222
1223/**
1224 * If autofs was stopped earlier, restart it.
1225 */
1226void restart_autofs_if_necessary()
1227{
1228 char tmp[MAX_STR_LEN];
1229
1230 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1231 log_msg(3, "No autofs detected.");
1232 return;
1233 }
1234 sprintf(tmp, "%s start", g_autofs_exe);
1235 if (run_program_and_log_output(tmp, 2)) {
1236 log_it("Failed to start autofs");
1237 } else {
1238 g_autofs_stopped = FALSE;
1239 log_it("Started autofs OK");
1240 }
1241}
1242
1243
1244/**
1245 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1246 */
1247void mount_boot_if_necessary()
1248{
1249 char tmp[MAX_STR_LEN];
1250 char command[MAX_STR_LEN];
1251
1252 log_msg(1, "Started sub");
1253 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1254 g_boot_mountpt[0] = '\0';
1255 log_msg(4, "Done. Great. Seeting command to something");
1256 strcpy(command,
1257 "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1258 log_msg(4, "Cool. Command = '%s'", command);
1259 strcpy(tmp, call_program_and_get_last_line_of_output(command));
1260 log_msg(4, "tmp = '%s'", tmp);
1261 if (tmp[0]) {
1262 log_it("/boot is at %s according to /etc/fstab", tmp);
1263 strcpy(command, "mount | grep -Ew '/boot'");
1264 strcpy(tmp, call_program_and_get_last_line_of_output(command));
1265 if (!strcmp(tmp,"")) {
1266 if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1267 if (!run_program_and_log_output("mount /boot", 5)) {
1268 strcpy(g_boot_mountpt, "/boot");
1269 log_msg(1, "Mounted /boot");
1270 } else {
1271 log_it("...ignored cos it's a label or uuid :-)");
1272 }
1273 } else {
1274 sprintf(command, "mount | grep -E '^%s'", tmp);
1275 log_msg(3, "command = %s", command);
1276 if (run_program_and_log_output(command, 5)) {
1277 strcpy(g_boot_mountpt, tmp);
1278 sprintf(tmp,
1279 "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1280 g_boot_mountpt);
1281 log_it(tmp);
1282 sprintf(tmp, "mount %s", g_boot_mountpt);
1283 if (run_program_and_log_output(tmp, 5)) {
1284 g_boot_mountpt[0] = '\0';
1285 log_msg(1, "Plan B");
1286 if (!run_program_and_log_output("mount /boot", 5)) {
1287 strcpy(g_boot_mountpt, "/boot");
1288 log_msg(1, "Plan B worked");
1289 } else {
1290 log_msg(1,
1291 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1292 }
1293 }
1294 }
1295 }
1296 }
1297 }
1298 log_msg(1, "Ended sub");
1299}
1300
1301
1302/**
1303 * If we mounted /boot earlier, unmount it.
1304 */
1305void unmount_boot_if_necessary()
1306{
1307 char tmp[MAX_STR_LEN];
1308
1309 log_msg(3, "starting");
1310 if (g_boot_mountpt[0]) {
1311 sprintf(tmp, "umount %s", g_boot_mountpt);
1312 if (run_program_and_log_output(tmp, 5)) {
1313 log_it("WARNING - unable to unmount /boot");
1314 }
1315 }
1316 log_msg(3, "leaving");
1317}
1318
1319
1320
1321/**
1322 * Write a line to a configuration file. Writes a line of the form,
1323 * @c label @c value.
1324 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1325 * @param label What to call this bit of data you're writing.
1326 * @param value The bit of data you're writing.
1327 * @return 0 for success, 1 for failure.
1328 */
1329int write_cfg_var(char *config_file, char *label, char *value)
1330{
1331 /*@ buffers ***************************************************** */
1332 char command[MAX_STR_LEN * 2];
1333 char tempfile[MAX_STR_LEN];
1334 char tmp[MAX_STR_LEN];
1335
1336
1337 /*@ end vars *************************************************** */
1338 assert_string_is_neither_NULL_nor_zerolength(config_file);
1339 assert_string_is_neither_NULL_nor_zerolength(label);
1340 assert(value != NULL);
1341 if (!does_file_exist(config_file)) {
1342 sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1343 config_file);
1344 log_to_screen(tmp);
1345 return (1);
1346 }
1347 sprintf(tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1348 if (does_file_exist(config_file)) {
1349 sprintf(command, "grep -vE '^%s .*$' %s > %s",
1350 label, config_file, tempfile);
1351 paranoid_system(command);
1352 }
1353 sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1354 paranoid_system(command);
1355 sprintf(command, "mv -f %s %s", tempfile, config_file);
1356 paranoid_system(command);
1357 unlink(tempfile);
1358 return (0);
1359}
1360
1361
1362/**
1363 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1364 * information to the logfile.
1365 */
1366void standard_log_debug_msg(int debug_level, const char *szFile,
1367 const char *szFunction, int nLine,
1368 const char *fmt, ...)
1369{
1370 va_list args;
1371 int i;
1372 static int depth = 0;
1373 char *tmp;
1374 FILE *fout;
1375
1376 if (depth > 5) {
1377 depth--;
1378 return;
1379 }
1380 depth++;
1381
1382 malloc_string(tmp);
1383
1384 if (debug_level <= g_loglevel) {
1385 va_start(args, fmt);
1386 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1387 return;
1388 } // fatal_error("Failed to openout to logfile - sheesh..."); }
1389
1390 // add tabs to distinguish log levels
1391 if (debug_level > 0) {
1392 for (i = 1; i < debug_level; i++)
1393 fprintf(fout, "\t");
1394 if (getpid() == g_main_pid)
1395 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1396 nLine);
1397 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1398 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1399 nLine);
1400 else
1401 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1402 szFunction, nLine);
1403 }
1404 vfprintf(fout, fmt, args);
1405
1406 // do not slow down the progran if standard debug level
1407 // must be enabled: if no flush, the log won't be up-to-date if there
1408 // is a segfault
1409 //if (g_dwDebugLevel != 1)
1410
1411 va_end(args);
1412 fprintf(fout, "\n");
1413 paranoid_fclose(fout);
1414 }
1415 depth--;
1416 paranoid_free(tmp);
1417}
1418
1419/**
1420 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1421 */
1422void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1423 ...) = standard_log_debug_msg;
1424
1425
1426/**
1427 * If @p y, malloc @p x, else free @p x.
1428 * @bug This function seems orphaned. Please remove.
1429 */
1430#define do_alloc_or_free_depending(x,y) { if(y) {x=malloc(MAX_STR_LEN);} else {paranoid_free(x);} }
1431
1432/**
1433 * Allocate or free important globals, depending on @p mal.
1434 * @param mal If TRUE, malloc; if FALSE, free.
1435 */
1436void do_libmondo_global_strings_thing(int mal)
1437{
1438 if (mal) {
1439 malloc_string(g_boot_mountpt);
1440 malloc_string(g_mondo_home);
1441 /*
1442 malloc_string(g_tmpfs_mountpt);
1443 */
1444 malloc_string(g_serial_string);
1445 malloc_string(g_magicdev_command);
1446 } else {
1447 paranoid_free(g_boot_mountpt);
1448 paranoid_free(g_mondo_home);
1449 /*
1450 paranoid_free(g_tmpfs_mountpt);
1451 */
1452 paranoid_free(g_serial_string);
1453 paranoid_free(g_magicdev_command);
1454 }
1455
1456 /*
1457 char**list_of_arrays[] = {
1458 &g_boot_mountpt,
1459 &g_mondo_home,
1460 &g_tmpfs_mountpt,
1461 &g_serial_string,
1462 &g_magicdev_command,
1463 NULL};
1464
1465 char**ppcurr;
1466 int i;
1467
1468 for(i=0;list_of_arrays[i];i++)
1469 {
1470 log_msg(5, "Allocating %d", i);
1471 ppcurr = list_of_arrays[i];
1472 if (mal)
1473 { *ppcurr = malloc(MAX_STR_LEN); }
1474 else
1475 {
1476 if (*ppcurr)
1477 {
1478 free(*ppcurr);
1479 }
1480 }
1481 }
1482 log_msg(5, "Returning");
1483 */
1484}
1485
1486/**
1487 * Allocate important globals.
1488 * @see do_libmondo_global_strings_thing
1489 */
1490void malloc_libmondo_global_strings(void)
1491{
1492 do_libmondo_global_strings_thing(1);
1493}
1494
1495/**
1496 * Free important globals.
1497 * @see do_libmondo_global_strings_thing
1498 */
1499void free_libmondo_global_strings(void)
1500{
1501 do_libmondo_global_strings_thing(0);
1502}
1503
1504
1505
1506/**
1507 * Stop @c magicdev if it's running.
1508 * The command used to start it is saved in @p g_magicdev_command.
1509 */
1510void stop_magicdev_if_necessary()
1511{
1512 strcpy(g_magicdev_command,
1513 call_program_and_get_last_line_of_output
1514 ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1515 if (g_magicdev_command[0]) {
1516 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1517 paranoid_system("killall magicdev");
1518 }
1519}
1520
1521
1522/**
1523 * Restart magicdev if it was stopped.
1524 */
1525void restart_magicdev_if_necessary()
1526{
1527 char *tmp;
1528
1529 malloc_string(tmp);
1530 if (g_magicdev_command && g_magicdev_command[0]) {
1531 sprintf(tmp, "%s &", g_magicdev_command);
1532 paranoid_system(tmp);
1533 }
1534 paranoid_free(tmp);
1535}
1536
1537/* @} - end of utilityGroup */
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