source: MondoRescue/branches/2.2.10/mondo/src/common/libmondo-tools.c@ 2322

Last change on this file since 2322 was 2322, checked in by Bruno Cornec, 16 years ago

r3333@localhost: bruno | 2009-08-08 01:58:31 +0200

  • bkpinfo->prefix is now dynamically assigned
  • Fix newt mondoarchive
  • Property svn:keywords set to Id
File size: 39.2 KB
Line 
1/*
2 $Id: libmondo-tools.c 2322 2009-08-18 12:37:58Z 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 2322 2009-08-18 12:37:58Z 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 /*
422 long avm = 0;
423 int rdsiz_MB;
424 */
425 char *iso_dev = NULL;
426 char *iso_mnt = NULL;
427 char *iso_tmp = NULL;
428 char *iso_path = NULL;
429
430 assert(bkpinfo != NULL);
431
432 if (!bkpinfo->tmpdir) {
433 fatal_error("Tmpdir set to NULL !");
434 }
435
436 malloc_string(mtpt);
437 malloc_string(hostname);
438 malloc_string(cdr_exe);
439 bkpinfo->optimal_set_size =
440 (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
441 1024;
442
443 if (strlen(bkpinfo->tmpdir) < 2) {
444 log_it("tmpdir is blank/missing");
445 retval++;
446 }
447
448 log_msg(1, "Foo");
449 if (bkpinfo->backup_media_type == tape) {
450 log_msg(1, "Bar");
451 mr_asprintf(&tmp, "mt -f %s status", bkpinfo->media_device);
452 log_msg(1, "tmp = '%s'", tmp);
453 if (run_program_and_log_output(tmp, 3)) {
454 mr_free(tmp);
455 fatal_error
456 ("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.");
457 }
458 mr_free(tmp);
459 }
460 if (bkpinfo->scratchdir) {
461 make_hole_for_dir(bkpinfo->scratchdir);
462 chmod(bkpinfo->scratchdir, 0700);
463 } else {
464 fatal_error("Scratchdir set to NULL !");
465 }
466 if (bkpinfo->backup_media_type == iso)
467 make_hole_for_dir(bkpinfo->isodir);
468
469 run_program_and_log_output("uname -a", 5);
470 run_program_and_log_output("cat /etc/*-release", 5);
471 run_program_and_log_output("cat /etc/*issue*", 5);
472#ifdef __FreeBSD__
473#else
474 run_program_and_log_output("cat /proc/cpuinfo", 5);
475 run_program_and_log_output
476 ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
477 5);
478#endif
479
480 if (bkpinfo->use_lzo) {
481 strcpy(bkpinfo->zip_exe, "lzop");
482 strcpy(bkpinfo->zip_suffix, "lzo");
483 } else if (bkpinfo->use_gzip) {
484 strcpy(bkpinfo->zip_exe, "gzip");
485 strcpy(bkpinfo->zip_suffix, "gz");
486 } else if (bkpinfo->compression_level != 0) {
487 strcpy(bkpinfo->zip_exe, "bzip2");
488 strcpy(bkpinfo->zip_suffix, "bz2");
489 } else {
490 bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
491 }
492
493// DVD
494
495 if (bkpinfo->backup_media_type == dvd) {
496 if (find_home_of_exe("growisofs")) {
497 strcpy(cdr_exe, "growisofs");
498 } // unlikely to be used
499 else {
500 fatal_error("Please install growisofs.");
501 }
502 if (bkpinfo->nonbootable_backup) {
503 mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
504 } else if
505#ifdef __FreeBSD__
506 (TRUE)
507#else
508 (bkpinfo->make_cd_use_lilo)
509#endif
510#ifdef __IA64__
511 {
512 mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
513 }
514#else
515 {
516 mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
517 }
518#endif
519 else
520 {
521 mr_asprintf(&mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
522 }
523 if (bkpinfo->manual_cd_tray) {
524 paranoid_free(mondo_mkisofs_sz);
525 fatal_error("Manual CD tray + DVD not supported yet.");
526 // -m isn't supported by growisofs, BTW...
527 } else {
528 sprintf(bkpinfo->call_make_iso,
529 "%s %s -Z %s . 2>> _ERR_",
530 mondo_mkisofs_sz,
531 "", bkpinfo->media_device);
532 paranoid_free(mondo_mkisofs_sz);
533 }
534 if (getenv ("SUDO_COMMAND")) {
535 mr_asprintf(&command, "strings `which growisofs` | grep -c SUDO_COMMAND");
536 if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
537 mr_free(command);
538 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
539 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
540 }
541 mr_free(command);
542 }
543 log_msg(2, "call_make_iso (DVD res) is ... %s",
544 bkpinfo->call_make_iso);
545 } // end of DVD code
546
547// CD-R or CD-RW
548 if (bkpinfo->backup_media_type == cdrw
549 || bkpinfo->backup_media_type == cdr) {
550 if (!bkpinfo->manual_cd_tray) {
551 mr_asprintf(&extra_cdrom_params, "-waiti ");
552 }
553 if (bkpinfo->backup_media_type == cdrw) {
554 mr_asprintf(&extra_cdrom_params, "blank=fast ");
555 }
556 if (find_home_of_exe("cdrecord")) {
557 strcpy(cdr_exe, "cdrecord");
558 } else if (find_home_of_exe("dvdrecord")) {
559 strcpy(cdr_exe, "dvdrecord");
560 } else {
561 fatal_error("Please install either cdrecord or dvdrecord.");
562 }
563 if (bkpinfo->nonbootable_backup) {
564 mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
565 } else if
566#ifdef __FreeBSD__
567 (TRUE)
568#else
569 (bkpinfo->make_cd_use_lilo)
570#endif
571#ifdef __IA64__
572 {
573 mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
574 }
575#else
576 {
577 mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
578 }
579#endif
580 else
581 {
582 mr_asprintf(&mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
583 }
584 if (bkpinfo->manual_cd_tray) {
585 if (bkpinfo->call_before_iso[0] == '\0') {
586 sprintf(bkpinfo->call_before_iso,
587 "%s -o %s/"MONDO_TMPISOS" . 2>> _ERR_",
588 mondo_mkisofs_sz, bkpinfo->tmpdir);
589 } else {
590 strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
591 sprintf (bkpinfo->call_before_iso,
592 "( %s -o %s/"MONDO_TMPISOS" . 2>> _ERR_ ; %s )",
593 mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
594 }
595 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
596 sprintf(bkpinfo->call_make_iso,
597 "%s %s -v %s fs=4m dev=%s speed=%d %s/"MONDO_TMPISOS,
598 cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
599 extra_cdrom_params, bkpinfo->media_device,
600 bkpinfo->cdrw_speed, bkpinfo->tmpdir);
601 } else {
602 sprintf(bkpinfo->call_make_iso,
603 "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
604 mondo_mkisofs_sz, cdr_exe,
605 (bkpinfo->please_dont_eject) ? " " : "-eject",
606 extra_cdrom_params, bkpinfo->media_device,
607 bkpinfo->cdrw_speed);
608 }
609 paranoid_free(mondo_mkisofs_sz);
610 paranoid_free(extra_cdrom_params);
611 } // end of CD code
612
613 if (bkpinfo->backup_media_type == iso) {
614
615/* Patch by Conor Daly <conor.daly@met.ie>
616 * 23-june-2004
617 * Break up isodir into iso_mnt and iso_path
618 * These will be used along with iso-dev at restore time
619 * to locate the ISOs where ever they're mounted
620 */
621
622 log_it("isodir = %s", bkpinfo->isodir);
623 mr_asprintf(&command, "df -P %s | tail -n1 | cut -d' ' -f1", bkpinfo->isodir);
624 log_it("command = %s", command);
625 log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
626 mr_asprintf(&iso_dev, "%s", call_program_and_get_last_line_of_output(command));
627 mr_asprintf(&tmp, "%s/ISO-DEV", bkpinfo->tmpdir);
628 write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
629 mr_free(tmp);
630 mr_free(command);
631
632 mr_asprintf(&command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3", iso_dev);
633 mr_free(iso_dev);
634
635 log_it("command = %s", command);
636 log_it("res of it = %s", call_program_and_get_last_line_of_output(command));
637 mr_asprintf(&iso_mnt, "%s", call_program_and_get_last_line_of_output(command));
638 mr_asprintf(&tmp, "%s/ISO-MNT", bkpinfo->tmpdir);
639 write_one_liner_data_file(tmp, call_program_and_get_last_line_of_output(command));
640 mr_free(tmp);
641 mr_free(command);
642
643 log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
644 mr_asprintf(&iso_tmp, "%s", bkpinfo->isodir);
645 if (strlen(iso_tmp) < strlen(iso_mnt)) {
646 mr_asprintf(&iso_path, "%s", "");
647 } else {
648 mr_asprintf(&iso_path, "%s", iso_tmp + strlen(iso_mnt));
649 }
650 mr_free(iso_tmp);
651
652 mr_asprintf(&tmp, "%s/ISODIR", bkpinfo->tmpdir);
653 write_one_liner_data_file(tmp, iso_path);
654 mr_free(tmp);
655
656 log_it("isodir: %s", iso_path);
657 mr_free(iso_path);
658
659 mr_asprintf(&tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
660 write_one_liner_data_file(tmp, bkpinfo->prefix);
661 mr_free(tmp);
662
663 log_it("iso-prefix: %s", bkpinfo->prefix);
664
665/* End patch */
666 } // end of iso code
667
668 if (bkpinfo->backup_media_type == nfs) {
669 strcpy(hostname, bkpinfo->nfs_mount);
670 colon = strchr(hostname, ':');
671 if (!colon) {
672 log_it("nfs 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 NFS mount (%s): %s", hostname,
681 hstrerror(h_errno));
682 retval++;
683 } else {
684 mr_asprintf(&ip_address, "%s", inet_ntoa((struct in_addr) *((struct in_addr *) hent->h_addr)));
685 mr_strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
686 strcpy(bkpinfo->nfs_mount, ip_address);
687 paranoid_free(ip_address);
688 }
689 }
690 store_nfs_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 paranoid_free(hostname);
704 paranoid_free(cdr_exe);
705 return (retval);
706}
707
708
709
710/**
711 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
712 * Seeds the random-number generator, loads important modules, checks the sanity
713 * of the user's Linux distribution, and deletes logfile.
714 * @param bkpinfo The backup information structure. Will be initialized.
715 * @return number of errors (0 for success)
716 */
717int pre_param_configuration()
718{
719 int res = 0;
720 char *tmp = NULL;
721
722 make_hole_for_dir(MNT_CDROM);
723 assert(bkpinfo != NULL);
724 srandom((unsigned long) (time(NULL)));
725 insmod_crucial_modules();
726 if (bkpinfo->disaster_recovery) {
727 if (!does_nonMS_partition_exist()) {
728 fatal_error
729 ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
730 }
731 }
732
733 unlink(MONDO_TRACEFILE);
734 mr_asprintf(&tmp,"rm -Rf %s/changed.files*",MONDO_CACHE);
735 run_program_and_log_output(tmp, FALSE);
736 paranoid_free(tmp);
737 if (find_and_store_mondoarchives_home(g_mondo_home)) {
738 fprintf(stderr,
739 "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");
740 res++;
741 return (res);
742 }
743 res += some_basic_system_sanity_checks();
744 if (res) {
745 log_it("Your distribution did not pass Mondo's sanity test.");
746 }
747 g_current_media_number = 1;
748 bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
749 return (res);
750}
751
752void setup_tmpdir(char *path) {
753
754 char *tmp = NULL;
755 char *p = NULL;
756
757 if ((bkpinfo->tmpdir != NULL) && (strstr(bkpinfo->tmpdir,"mondo.tmp.") != NULL)) {
758 /* purging a potential old tmpdir */
759 log_it("Purging old tmpdir %s", bkpinfo->tmpdir);
760 mr_asprintf(&tmp,"rm -Rf %s",bkpinfo->tmpdir);
761 mr_free(bkpinfo->tmpdir);
762 (void)system(tmp);
763 mr_free(tmp);
764 }
765
766 if (path != NULL) {
767 mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", path);
768 } else if (getenv("TMPDIR")) {
769 mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMPDIR"));
770 } else if (getenv("TMP")) {
771 mr_asprintf(&tmp, "%s/mondo.tmp.XXXXXX", getenv("TMP"));
772 } else {
773 mr_asprintf(&tmp, "/tmp/mondo.tmp.XXXXXX");
774 }
775 p = mkdtemp(tmp);
776 if (p == NULL) {
777 log_it("Failed to create global tmp directory %s for Mondo.",tmp);
778 mr_free(tmp);
779 finish(-1);
780 }
781
782 bkpinfo->tmpdir = p;
783 log_it("bkpinfo->tmpdir is being set to %s", bkpinfo->tmpdir);
784}
785
786/* Free all memory allocated into bkpinfo */
787void mr_free_bkpinfo() {
788
789 mr_free(bkpinfo->scratchdir);
790 mr_free(bkpinfo->tmpdir);
791 mr_free(bkpinfo->include_paths);
792 mr_free(bkpinfo->exclude_paths);
793 mr_free(bkpinfo->nfs_user);
794
795 /* Then free the structure */
796 mr_free(bkpinfo);
797}
798
799/**
800 * Reset all fields of the backup information structure to a sensible default.
801 * @param bkpinfo The @c bkpinfo to reset.
802 */
803void init_bkpinfo()
804{
805 int i;
806 char *p = NULL;
807
808 log_msg(1, "Hi");
809
810 /* Initialized in same order as in the structure declaration to detect errors more easily */
811 bkpinfo->media_device[0] = '\0';
812 for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
813 bkpinfo->media_size[i] = -1;
814 }
815 bkpinfo->boot_loader = '\0';
816 bkpinfo->boot_device[0] = '\0';
817 bkpinfo->zip_exe[0] = '\0';
818 bkpinfo->zip_suffix[0] = '\0';
819 bkpinfo->image_devs[0] = '\0';
820 bkpinfo->compression_level = 3;
821 bkpinfo->use_lzo = FALSE;
822 bkpinfo->use_gzip = FALSE;
823 bkpinfo->do_not_compress_these[0] = '\0';
824 bkpinfo->verify_data = FALSE;
825 bkpinfo->backup_data = FALSE;
826 bkpinfo->restore_data = FALSE;
827 bkpinfo->use_star = FALSE;
828 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
829 bkpinfo->disaster_recovery = (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
830 if (bkpinfo->disaster_recovery) {
831 strcpy(bkpinfo->isodir, "/");
832 } else {
833 strcpy(bkpinfo->isodir, MONDO_CACHE);
834 }
835 mr_asprintf(&p, "%s", STD_PREFIX);
836 bkpinfo->prefix = p;
837 bkpinfo->scratchdir = NULL;
838 bkpinfo->tmpdir = NULL;
839 bkpinfo->optimal_set_size = 0;
840 bkpinfo->backup_media_type = none;
841 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
842 bkpinfo->include_paths = NULL;
843 bkpinfo->exclude_paths = NULL;
844 bkpinfo->restore_path[0] = '\0';
845 bkpinfo->call_before_iso[0] = '\0';
846 bkpinfo->call_make_iso[0] = '\0';
847 bkpinfo->call_burn_iso[0] = '\0';
848 bkpinfo->call_after_iso[0] = '\0';
849 bkpinfo->kernel_path[0] = '\0';
850 bkpinfo->nfs_mount[0] = '\0';
851 bkpinfo->nfs_remote_dir[0] = '\0';
852 bkpinfo->nfs_user = NULL;
853 bkpinfo->postnuke_tarball[0] = '\0';
854 bkpinfo->wipe_media_first = FALSE;
855 bkpinfo->differential = 0;
856 bkpinfo->please_dont_eject = FALSE;
857 bkpinfo->cdrw_speed = 0;
858 bkpinfo->manual_cd_tray = FALSE;
859 bkpinfo->nonbootable_backup = FALSE;
860 bkpinfo->make_cd_use_lilo = FALSE;
861 bkpinfo->use_obdr = FALSE;
862 bkpinfo->restore_mode = interactive;
863
864 setup_tmpdir(NULL);
865 sensibly_set_scratchdir();
866}
867
868
869
870
871/**
872 * Get the remaining free space (in MB) on @p partition.
873 * @param partition The partition to check free space on (either a device or a mountpoint).
874 * @return The free space on @p partition, in MB.
875 */
876long free_space_on_given_partition(char *partition)
877{
878 char *out_sz = NULL;
879 char *command = NULL;
880 long res;
881
882 assert_string_is_neither_NULL_nor_zerolength(partition);
883
884 mr_asprintf(&command, "df -m -P %s 1> /dev/null 2> /dev/null", partition);
885 if (system(command)) {
886 mr_free(command);
887 return (-1);
888 } // partition does not exist
889 mr_free(command);
890
891 mr_asprintf(&command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
892 partition);
893 mr_asprintf(&out_sz, "%s", call_program_and_get_last_line_of_output(command));
894 mr_free(command);
895
896 if (strlen(out_sz) == 0) {
897 mr_free(out_sz);
898 return (-1);
899 } // error within df, probably
900 res = atol(out_sz);
901 mr_free(out_sz);
902 return (res);
903}
904
905
906
907/**
908 * Check the user's system for sanity. Checks performed:
909 * - make sure user has enough RAM (32mb required, 64mb recommended)
910 * - make sure user has enough free space in @c /
911 * - check kernel for ramdisk support
912 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
913 * - make sure CD-ROM is unmounted
914 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
915 *
916 * @return number of problems with the user's setup (0 for success)
917 */
918int some_basic_system_sanity_checks()
919{
920
921 /*@ buffers ************ */
922 char *tmp = NULL;
923
924 /*@ int's *************** */
925 int retval = 0;
926
927 mvaddstr_and_log_it(g_currentY, 0,
928 "Checking sanity of your Linux distribution");
929#ifndef __FreeBSD__
930 if (system("which mkfs.vfat 2> /dev/null 1> /dev/null")
931 && !system("which mkfs.msdos 2> /dev/null 1> /dev/null")) {
932 log_it
933 ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
934 run_program_and_log_output
935 ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
936 }
937 mr_asprintf(&tmp, "%s", call_program_and_get_last_line_of_output("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
938 if (atol(tmp) < 35000) {
939 retval++;
940 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
941 }
942 if (atol(tmp) < 66000) {
943 log_to_screen
944 ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
945 }
946 mr_free(tmp);
947#endif
948
949 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
950 retval++;
951 log_to_screen
952 ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
953 fatal_error
954 ("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. :)");
955 }
956#ifndef __FreeBSD__
957 if (run_program_and_log_output
958 ("grep ramdisk /proc/devices", FALSE)) {
959 /* Some SuSE have ramdisk as modules, so insert it first, then test again */
960 run_program_and_log_output("modprobe brd 2> /dev/null > /dev/null",FALSE);
961 if (run_program_and_log_output
962 ("grep ramdisk /proc/devices", FALSE)) {
963 if (!ask_me_yes_or_no
964 ("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?"))
965 {
966 // retval++;
967 log_to_screen
968 ("It looks as if your kernel lacks ramdisk and initrd support.");
969 log_to_screen
970 ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
971 }
972 }
973 }
974#endif
975 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
976 retval += whine_if_not_found("mkisofs");
977 if (system("which dvdrecord > /dev/null 2> /dev/null")) {
978 retval += whine_if_not_found("cdrecord");
979 }
980 retval += whine_if_not_found("bzip2");
981 retval += whine_if_not_found("gzip");
982 retval += whine_if_not_found("awk");
983 retval += whine_if_not_found("md5sum");
984 retval += whine_if_not_found("strings");
985 retval += whine_if_not_found("mindi");
986 retval += whine_if_not_found("buffer");
987
988 // abort if Windows partition but no ms-sys and parted
989 if (!run_program_and_log_output("mount | grep -Ew 'vfat|fat|dos' | grep -vE \"/dev/fd|nexdisk\"", 0)) {
990 log_to_screen("I think you have a Windows 9x partition.");
991 retval += whine_if_not_found("parted");
992 }
993
994 if (!find_home_of_exe("cmp")) {
995 if (!find_home_of_exe("true")) {
996 whine_if_not_found("cmp");
997 } else {
998 log_to_screen
999 ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
1000 if (run_program_and_log_output
1001 ("cp -f `which true` /usr/bin/cmp", 0)) {
1002 fatal_error("Failed to create dummy 'cmp' file.");
1003 }
1004 }
1005 }
1006 run_program_and_log_output
1007 ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
1008 mr_asprintf(&tmp, "%s", call_program_and_get_last_line_of_output("mount | grep -E \"cdr(om|w)\""));
1009 if (strcmp("", tmp)) {
1010 if (strstr(tmp, "autofs")) {
1011 log_to_screen
1012 ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1013 log_to_screen
1014 ("if a CD actually is inserted. If a CD is inserted, please");
1015 log_to_screen("eject it. Thank you.");
1016 log_it
1017 ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1018 } else
1019 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1020 retval++;
1021 mr_free(tmp);
1022 fatal_error("Your CD-ROM drive is mounted. Please unmount it.");
1023 }
1024 }
1025 mr_free(tmp);
1026
1027 run_program_and_log_output("cat /etc/fstab", 5);
1028#ifdef __FreeBSD__
1029 run_program_and_log_output("vinum printconfig", 5);
1030#else
1031 run_program_and_log_output("cat /etc/raidtab", 5);
1032#endif
1033
1034 if (run_program_and_log_output("mindi -V", 1)) {
1035 log_to_screen("Could not ascertain mindi's version number.");
1036 log_to_screen
1037 ("You have not installed Mondo and/or Mindi properly.");
1038 log_to_screen("Please uninstall and reinstall them both.");
1039 fatal_error("Please reinstall Mondo and Mindi.");
1040 }
1041 mr_asprintf(&tmp, "mindi --makemountlist %s/mountlist.txt.test", bkpinfo->tmpdir);
1042 if (run_program_and_log_output(tmp, 5)) {
1043 mr_free(tmp);
1044 mr_asprintf(&tmp, "mindi --makemountlist %s/mountlist.txt.test failed for some reason.", bkpinfo->tmpdir);
1045 log_to_screen(tmp);
1046 log_to_screen
1047 ("Please run that command by hand and examine /var/log/mindi.log");
1048 log_to_screen
1049 ("for more information. Perhaps your /etc/fstab file is insane.");
1050 log_to_screen
1051 ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1052 retval++;
1053 }
1054 mr_free(tmp);
1055
1056 if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1057 && !does_file_exist("/etc/raidtab")) {
1058 log_to_screen
1059 ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1060 create_raidtab_from_mdstat("/etc/raidtab");
1061 }
1062
1063 if (retval) {
1064 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1065 } else {
1066 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1067 }
1068 return (retval);
1069}
1070
1071/**
1072 * Retrieve the line containing @p label from the config file.
1073 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1074 * @param label What to read from the file.
1075 * @param value Where to put it.
1076 * @return 0 for success, 1 for failure.
1077 */
1078int read_cfg_var(char *config_file, char *label, char *value)
1079{
1080 /*@ buffer ****************************************************** */
1081 char *command = NULL;
1082 char *tmp = NULL;
1083
1084 /*@ end vars *************************************************** */
1085
1086 assert_string_is_neither_NULL_nor_zerolength(config_file);
1087 assert_string_is_neither_NULL_nor_zerolength(label);
1088 if (!does_file_exist(config_file)) {
1089 mr_asprintf(&tmp, "(read_cfg_var) Cannot find %s config file", config_file);
1090 log_to_screen(tmp);
1091 mr_free(tmp);
1092
1093 value[0] = '\0';
1094 return (1);
1095 } else if ((value != NULL) && (strstr(value, "/dev/") && strstr(value, "t0") && !strcmp(label, "media-dev"))) {
1096 log_msg(2, "FYI, I can't read new value for %s - already got %s", label, value);
1097 return (0);
1098 } else {
1099 mr_asprintf(&command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5", label, config_file);
1100 strcpy(value, call_program_and_get_last_line_of_output(command));
1101 mr_free(command);
1102
1103 if (strlen(value) == 0) {
1104 return (1);
1105 } else {
1106 return (0);
1107 }
1108 }
1109}
1110
1111
1112
1113/**
1114 * Remount @c supermount if it was unmounted earlier.
1115 */
1116void remount_supermounts_if_necessary()
1117{
1118 if (g_remount_cdrom_at_end) {
1119 run_program_and_log_output("mount " MNT_CDROM, FALSE);
1120 }
1121 if (g_remount_floppy_at_end) {
1122 run_program_and_log_output("mount " MNT_FLOPPY, FALSE);
1123 }
1124}
1125
1126/**
1127 * Unmount @c supermount if it's mounted.
1128 */
1129void unmount_supermounts_if_necessary()
1130{
1131 if (run_program_and_log_output
1132 ("mount | grep cdrom | grep super", FALSE) == 0) {
1133 g_remount_cdrom_at_end = TRUE;
1134 run_program_and_log_output("umount " MNT_CDROM, FALSE);
1135 }
1136 if (run_program_and_log_output
1137 ("mount | grep floppy | grep super", FALSE) == 0) {
1138 g_remount_floppy_at_end = TRUE;
1139 run_program_and_log_output("umount " MNT_FLOPPY, FALSE);
1140 }
1141}
1142
1143/**
1144 * Whether we had to stop autofs (if so, restart it at end).
1145 */
1146bool g_autofs_stopped = FALSE;
1147
1148/**
1149 * Path to the autofs initscript ("" if none exists).
1150 */
1151char g_autofs_exe[MAX_STR_LEN];
1152
1153/**
1154 * Autofs initscript in Xandros Linux distribution.
1155 */
1156#define XANDROS_AUTOFS_FNAME "/etc/init.d/xandros-autofs"
1157
1158/**
1159 * Autofs initscript in most Linux distributions.
1160 */
1161#define STOCK_AUTOFS_FNAME "/etc/rc.d/init.d/autofs"
1162
1163/**
1164 * If autofs is mounted, stop it (restart at end).
1165 */
1166void stop_autofs_if_necessary()
1167{
1168 char *tmp = NULL;
1169
1170 g_autofs_exe[0] = '\0';
1171 if (does_file_exist(XANDROS_AUTOFS_FNAME)) {
1172 strcpy(g_autofs_exe, XANDROS_AUTOFS_FNAME);
1173 } else if (does_file_exist(STOCK_AUTOFS_FNAME)) {
1174 strcpy(g_autofs_exe, STOCK_AUTOFS_FNAME);
1175 }
1176
1177 if (!g_autofs_exe[0]) {
1178 log_msg(3, "No autofs detected.");
1179 } else {
1180 log_msg(3, "%s --- autofs detected", g_autofs_exe);
1181 // FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1182 mr_asprintf(&tmp, "%s stop", g_autofs_exe);
1183 if (run_program_and_log_output(tmp, 2)) {
1184 log_it("Failed to stop autofs - I assume it wasn't running");
1185 } else {
1186 g_autofs_stopped = TRUE;
1187 log_it("Stopped autofs OK");
1188 }
1189 mr_free(tmp);
1190 }
1191}
1192
1193/**
1194 * If autofs was stopped earlier, restart it.
1195 */
1196void restart_autofs_if_necessary()
1197{
1198 char *tmp = NULL;
1199
1200 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1201 log_msg(3, "No autofs detected.");
1202 return;
1203 }
1204 mr_asprintf(&tmp, "%s start", g_autofs_exe);
1205 if (run_program_and_log_output(tmp, 2)) {
1206 log_it("Failed to start autofs");
1207 } else {
1208 g_autofs_stopped = FALSE;
1209 log_it("Started autofs OK");
1210 }
1211 mr_free(tmp);
1212}
1213
1214
1215/**
1216 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1217 */
1218void mount_boot_if_necessary()
1219{
1220 char *tmp = NULL;
1221 char *command = NULL;
1222
1223 log_msg(1, "Started sub");
1224 log_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1225 g_boot_mountpt[0] = '\0';
1226 log_msg(4, "Done. Great. Seeting command to something");
1227 mr_asprintf(&command, "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1228 log_msg(4, "Cool. Command = '%s'", command);
1229 mr_asprintf(&tmp, "%s", call_program_and_get_last_line_of_output(command));
1230 mr_free(command);
1231
1232 log_msg(4, "tmp = '%s'", tmp);
1233 if (tmp[0]) {
1234 log_it("/boot is at %s according to /etc/fstab", tmp);
1235 mr_asprintf(&command, "mount | grep -Ew '/boot'");
1236 mr_free(tmp);
1237 mr_asprintf(&tmp, "%s", call_program_and_get_last_line_of_output(command));
1238 mr_free(command);
1239
1240 if (!strcmp(tmp,"")) {
1241 if ((strstr(tmp, "LABEL=") || strstr(tmp,"UUID="))) {
1242 if (!run_program_and_log_output("mount /boot", 5)) {
1243 strcpy(g_boot_mountpt, "/boot");
1244 log_msg(1, "Mounted /boot");
1245 } else {
1246 log_it("...ignored cos it's a label or uuid :-)");
1247 }
1248 } else {
1249 mr_asprintf(&command, "mount | grep -E '^%s'", tmp);
1250 log_msg(3, "command = %s", command);
1251 if (run_program_and_log_output(command, 5)) {
1252 strcpy(g_boot_mountpt, tmp);
1253 mr_free(tmp);
1254 mr_asprintf(&tmp, "%s (your /boot partition) is not mounted. I'll mount it before backing up", g_boot_mountpt);
1255 log_it(tmp);
1256 mr_free(tmp);
1257
1258 mr_asprintf(&tmp, "mount %s", g_boot_mountpt);
1259 if (run_program_and_log_output(tmp, 5)) {
1260 g_boot_mountpt[0] = '\0';
1261 log_msg(1, "Plan B");
1262 if (!run_program_and_log_output("mount /boot", 5)) {
1263 strcpy(g_boot_mountpt, "/boot");
1264 log_msg(1, "Plan B worked");
1265 } else {
1266 log_msg(1,
1267 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1268 }
1269 }
1270 mr_free(tmp);
1271 }
1272 mr_free(command);
1273 }
1274 }
1275 }
1276 log_msg(1, "Ended sub");
1277}
1278
1279
1280/**
1281 * If we mounted /boot earlier, unmount it.
1282 */
1283void unmount_boot_if_necessary()
1284{
1285 char *tmp = NULL;
1286
1287 log_msg(3, "starting");
1288 if (g_boot_mountpt[0]) {
1289 mr_asprintf(&tmp, "umount %s", g_boot_mountpt);
1290 if (run_program_and_log_output(tmp, 5)) {
1291 log_it("WARNING - unable to unmount /boot");
1292 }
1293 mr_free(tmp);
1294 }
1295 log_msg(3, "leaving");
1296}
1297
1298
1299
1300/**
1301 * Write a line to a configuration file. Writes a line of the form,
1302 * @c label @c value.
1303 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1304 * @param label What to call this bit of data you're writing.
1305 * @param value The bit of data you're writing.
1306 * @return 0 for success, 1 for failure.
1307 */
1308int write_cfg_var(char *config_file, char *label, char *value)
1309{
1310 /*@ buffers ***************************************************** */
1311 char *command = NULL;
1312 char *tempfile = NULL;
1313 char *tmp = NULL;
1314
1315
1316 /*@ end vars *************************************************** */
1317 assert_string_is_neither_NULL_nor_zerolength(config_file);
1318 assert_string_is_neither_NULL_nor_zerolength(label);
1319 assert(value != NULL);
1320 if (!does_file_exist(config_file)) {
1321 mr_asprintf(&tmp, "(write_cfg_file) Cannot find %s config file", config_file);
1322 log_to_screen(tmp);
1323 mr_free(tmp);
1324 return (1);
1325 }
1326 mr_asprintf(&tempfile, "%s/mojo-jojo.blah", bkpinfo->tmpdir);
1327 if (does_file_exist(config_file)) {
1328 mr_asprintf(&command, "grep -vE '^%s .*$' %s > %s", label, config_file, tempfile);
1329 paranoid_system(command);
1330 mr_free(command);
1331 }
1332 mr_asprintf(&command, "echo \"%s %s\" >> %s", label, value, tempfile);
1333 paranoid_system(command);
1334 mr_free(command);
1335
1336 mr_asprintf(&command, "mv -f %s %s", tempfile, config_file);
1337 paranoid_system(command);
1338 mr_free(command);
1339 unlink(tempfile);
1340 mr_free(tempfile);
1341 return (0);
1342}
1343
1344
1345/**
1346 * The standard log_debug_msg() (log_msg() also due to a macro). Writes some describing
1347 * information to the logfile.
1348 */
1349void standard_log_debug_msg(int debug_level, const char *szFile,
1350 const char *szFunction, int nLine,
1351 const char *fmt, ...)
1352{
1353 va_list args;
1354 int i;
1355 static int depth = 0;
1356 FILE *fout;
1357
1358 if (depth > 5) {
1359 depth--;
1360 return;
1361 }
1362 depth++;
1363
1364 if (debug_level <= g_loglevel) {
1365 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1366 return;
1367 }
1368
1369 // add tabs to distinguish log levels
1370 if (debug_level > 0) {
1371 for (i = 1; i < debug_level; i++)
1372 fprintf(fout, "\t");
1373 if (getpid() == g_main_pid)
1374 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction, nLine);
1375 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1376 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction, nLine);
1377 else
1378 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile, szFunction, nLine);
1379 }
1380 va_start(args, fmt);
1381 vfprintf(fout, fmt, args);
1382 va_end(args);
1383
1384 // do not slow down the progran if standard debug level
1385 // must be enabled: if no flush, the log won't be up-to-date if there
1386 // is a segfault
1387 //if (g_dwDebugLevel != 1)
1388
1389 fprintf(fout, "\n");
1390 paranoid_fclose(fout);
1391 }
1392 depth--;
1393}
1394
1395/**
1396 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1397 */
1398void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1399 ...) = standard_log_debug_msg;
1400
1401
1402/**
1403 * Allocate or free important globals, depending on @p mal.
1404 * @param mal If TRUE, malloc; if FALSE, free.
1405 */
1406void do_libmondo_global_strings_thing(int mal)
1407{
1408 if (mal) {
1409 malloc_string(g_boot_mountpt);
1410 malloc_string(g_mondo_home);
1411 malloc_string(g_magicdev_command);
1412 } else {
1413 paranoid_free(g_boot_mountpt);
1414 paranoid_free(g_mondo_home);
1415 paranoid_free(g_magicdev_command);
1416
1417 mr_free(g_serial_string);
1418 }
1419}
1420
1421/**
1422 * Allocate important globals.
1423 * @see do_libmondo_global_strings_thing
1424 */
1425void malloc_libmondo_global_strings(void)
1426{
1427 do_libmondo_global_strings_thing(1);
1428}
1429
1430/**
1431 * Free important globals.
1432 * @see do_libmondo_global_strings_thing
1433 */
1434void free_libmondo_global_strings(void)
1435{
1436 do_libmondo_global_strings_thing(0);
1437}
1438
1439
1440
1441/**
1442 * Stop @c magicdev if it's running.
1443 * The command used to start it is saved in @p g_magicdev_command.
1444 */
1445void stop_magicdev_if_necessary()
1446{
1447 strcpy(g_magicdev_command,
1448 call_program_and_get_last_line_of_output
1449 ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1450 if (g_magicdev_command[0]) {
1451 log_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1452 paranoid_system("killall magicdev");
1453 }
1454}
1455
1456
1457/**
1458 * Restart magicdev if it was stopped.
1459 */
1460void restart_magicdev_if_necessary()
1461{
1462 char *tmp = NULL;
1463
1464 if (g_magicdev_command && g_magicdev_command[0]) {
1465 mr_asprintf(&tmp, "%s &", g_magicdev_command);
1466 paranoid_system(tmp);
1467 mr_free(tmp);
1468 }
1469}
1470
1471/* @} - end of utilityGroup */
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