source: MondoRescue/branches/stable/mondo/src/common/libmondo-tools.c@ 1119

Last change on this file since 1119 was 1116, checked in by Bruno Cornec, 17 years ago

Suppress lib-common-externs.h useless
  • Property svn:keywords set to Id
File size: 40.3 KB
Line 
1/* libmondo-tools.c misc tools
2 $Id: libmondo-tools.c 1116 2007-02-09 00:02:11Z 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 "mr_file.h"
14
15#include "mondostructures.h"
16#include "libmondo-tools.h"
17#include "libmondo-gui-EXT.h"
18#include "libmondo-files-EXT.h"
19#include "libmondo-fork-EXT.h"
20#include "libmondo-raid-EXT.h"
21#include <sys/socket.h>
22#include <netdb.h>
23#include <netinet/in.h>
24#include <arpa/inet.h>
25
26/*@unused@*/
27//static char cvsid[] = "$Id: libmondo-tools.c 1116 2007-02-09 00:02:11Z bruno $";
28
29extern int g_tape_buffer_size_MB;
30extern char *g_erase_tmpdir_and_scratchdir;
31extern char *g_serial_string;
32extern bool g_text_mode;
33extern int g_currentY;
34extern int g_current_media_number;
35
36/**
37 * @addtogroup globalGroup
38 * @{
39 */
40bool g_remount_cdrom_at_end, ///< TRUE if we unmounted the CD-ROM and should remount it when done with the backup.
41 g_remount_floppy_at_end; ///< TRUE if we unmounted the floppy and should remount it when done with the backup.
42bool g_cd_recovery; ///< TRUE if we're making an "autonuke" backup.
43double g_kernel_version;
44
45/**
46 * The place where /boot is mounted.
47 */
48char *g_boot_mountpt = NULL;
49
50/**
51 * The location of Mondo's home directory.
52 */
53char *g_mondo_home = NULL;
54
55/**
56 * The serial string (used to differentiate between backups) of the current backup.
57 */
58char *g_serial_string = NULL;
59
60/**
61 * The location where tmpfs is mounted, or "" if it's not mounted.
62 */
63char *g_tmpfs_mountpt = NULL;
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 * @addtogroup utilityGroup
84 * @{
85 */
86/**
87 * Assertion handler. Prints a friendly message to the user,
88 * offering to ignore all, dump core, break to debugger,
89 * exit, or ignore. Intended to be used with an assert() macro.
90 *
91 * @param file The file in which the assertion triggered.
92 * @param function The function (@c __FUNCTION__) in which the assertion triggered.
93 * @param line The line number of the assert() statement.
94 * @param exp The expression that failed (as a string).
95 */
96void _mondo_assert_fail(const char *file,
97 const char *function, int line, const char *exp)
98{
99 static int ignoring_assertions = 0;
100 bool is_valid = TRUE;
101
102 log_it("ASSERTION FAILED: `%s' at %s:%d in %s", exp, file, line,
103 function);
104 if (ignoring_assertions) {
105 log_it("Well, the user doesn't care...");
106 return;
107 }
108#ifndef _XWIN
109 if (!g_text_mode)
110 newtSuspend();
111#endif
112 printf("ASSERTION FAILED: `%s'\n", exp);
113 printf("\tat %s:%d in %s\n\n", file, line, function);
114 printf("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
115 do {
116 is_valid = TRUE;
117 switch (toupper(getchar())) {
118 case 'A': // ignore (A)ll
119 ignoring_assertions = 1;
120 break;
121 case 'B': // a(B)ort
122 signal(SIGABRT, SIG_DFL); /* prevent SIGABRT handler from running */
123 raise(SIGABRT);
124 break; /* "can't get here" */
125 case 'D': // (D)ebug, aka asm("int 3")
126#ifdef __IA32__
127 __asm__ __volatile__("int $3"); // break to debugger
128#endif
129 break;
130 case 'E': // (E)xit
131 fatal_error("Failed assertion -- see above for details");
132 break; /* "can't get here" */
133 case 'I': // (I)gnore
134 break;
135 /* These next two work as follows:
136 the `default' catches the user's invalid choice and says so;
137 the '\n' catches the newline on the end and prints the prompt again.
138 */
139 case '\n':
140 printf
141 ("(I)gnore, ignore (A)ll, (D)ebug, a(B)ort, or (E)xit? ");
142 break;
143 default:
144 is_valid = FALSE;
145 printf("Invalid choice.\n");
146 break;
147 }
148 } while (!is_valid);
149
150 if (ignoring_assertions) {
151 log_it("Ignoring ALL assertions from now on.");
152 } else {
153 log_it("Ignoring assertion: %s", exp);
154 }
155
156 getchar(); // skip \n
157
158#ifndef _XWIN
159 if (!g_text_mode)
160 newtResume();
161#endif
162}
163
164/**
165 * Clean's up users' KDE desktops.
166 * @bug Details about this function are unknown.
167 */
168void clean_up_KDE_desktop_if_necessary(void)
169{
170 char *tmp;
171
172 malloc_string(tmp);
173 strcpy(tmp,
174 "for i in `find /root /home -type d -name Desktop -maxdepth 2`; do \
175file=$i/.directory; if [ -f \"$file\" ] ; then mv -f $file $file.old ; \
176awk '{if (index($0, \"rootimagesmindi\")) { while (length($0)>2) { getline;} ; } \
177else { print $0;};}' $file.old > $file ; fi ; done");
178 run_program_and_log_output(tmp, 5);
179 mr_free(tmp);
180}
181
182
183/**
184 * Locate mondoarchive's home directory. Searches in /usr/share/mondo,
185 * /usr/local/share/mondo, /opt, or if all else fails, search /usr.
186 *
187 * @param home_sz String to store the home directory ("" if it could not be found).
188 * @return 0 for success, nonzero for failure.
189 */
190int find_and_store_mondoarchives_home(char *home_sz)
191{
192 assert(home_sz != NULL);
193 strcpy(home_sz, MONDO_SHARE);
194 return (0);
195}
196
197
198char *get_architecture()
199{
200#ifdef __IA32__
201 return ("i386");
202#endif
203#ifdef __IA64__
204 return ("ia64");
205#endif
206 return ("unknown");
207}
208
209
210
211double get_kernel_version()
212{
213 char *p, tmp[200];
214 double d;
215#ifdef __FreeBSD__
216 // JOSH - FIXME :)
217 d = 5.2; // :-)
218#else
219 strcpy(tmp, call_program_and_get_last_line_of_output("uname -r"));
220 p = strchr(tmp, '.');
221 if (p) {
222 p = strchr(++p, '.');
223 if (p) {
224 while (*p) {
225 *p = *(p + 1);
226 p++;
227 }
228 }
229 }
230// mr_msg(1, "tmp = '%s'", tmp);
231 d = atof(tmp);
232#endif
233 mr_msg(1, "g_kernel_version = %f", d);
234 return (d);
235}
236
237
238
239
240
241/**
242 * Get the current time.
243 * @return number of seconds since the epoch.
244 */
245long get_time()
246{
247 return (long) time((void *) 0);
248}
249
250
251
252
253
254
255
256/**
257 * Initialize a RAID volume structure, setting fields to zero. The
258 * actual hard drive is unaffected.
259 *
260 * @param raidrec The RAID volume structure to initialize.
261 * @note This function is system dependent.
262 */
263#ifdef __FreeBSD__
264void initialize_raidrec(struct vinum_volume *raidrec)
265{
266 int i, j;
267 raidrec->volname[0] = '\0';
268 raidrec->plexes = 0;
269 for (i = 0; i < 9; ++i) {
270 raidrec->plex[i].raidlevel = -1;
271 raidrec->plex[i].stripesize = 0;
272 raidrec->plex[i].subdisks = 0;
273 for (j = 0; j < 9; ++j) {
274 strcpy(raidrec->plex[i].sd[j].which_device, "");
275 }
276 }
277}
278#else
279void initialize_raidrec(struct raid_device_record *raidrec)
280{
281 assert(raidrec != NULL);
282 raidrec->raid_device[0] = '\0';
283 raidrec->raid_level = -9;
284 raidrec->persistent_superblock = 1;
285 raidrec->chunk_size = 64;
286 raidrec->parity = -1;
287 raidrec->data_disks.entries = 0;
288 raidrec->spare_disks.entries = 0;
289 raidrec->parity_disks.entries = 0;
290 raidrec->failed_disks.entries = 0;
291 raidrec->additional_vars.entries = 0;
292}
293#endif
294
295
296
297
298/**
299 * Insert modules that Mondo requires.
300 * Currently inserts @c dos, @c fat, @c vfat, and @c osst for Linux;
301 * @c msdosfs and @c ext2fs for FreeBSD.
302 */
303void insmod_crucial_modules(void)
304{
305#ifdef __FreeBSD__
306 system("kldstat | grep msdosfs || kldload msdosfs 2> /dev/null");
307 system("kldstat | grep ext2fs || kldload ext2fs 2> /dev/null");
308#else
309 system("modprobe dos &> /dev/null");
310 system("modprobe fat &> /dev/null");
311 system("modprobe vfat &> /dev/null");
312 // system("modprobe osst &> /dev/null");
313#endif
314}
315
316
317/**
318 * Log a trace message to the trace file.
319 * @bug This function seems orphaned. Please remove.
320 */
321void log_trace(char *o)
322{
323 /*@ pointers **************************************************** */
324 FILE *fout;
325
326 /*@ buffers ***************************************************** */
327 char output[MAX_STR_LEN];
328
329 /*@ int ****************************************************** */
330 int i;
331
332 /*@ end vars *************************************************** */
333
334 if (o[0] == '\0') {
335 return;
336 }
337 strcpy(output, o);
338 i = (int) strlen(output);
339 if (i <= 0) {
340 return;
341 }
342 if (output[i - 1] < 32) {
343 output[i - 1] = '\0';
344 }
345 if (g_text_mode
346 /* && !strstr(last_line_of_file(MONDO_LOGFILE),output) */ ) {
347 printf("%s\n", output);
348 }
349
350 fout = fopen(MONDO_TRACEFILE, "a");
351 if (fout) {
352 fprintf(fout, "%s\n", output);
353 paranoid_fclose(fout);
354 } else {
355 log_OS_error("Cannot write to tracefile");
356 }
357}
358
359
360
361
362
363/**
364 * Finish configuring the backup information structure. Call this function
365 * to set the parameters that depend on those that can be given on the command
366 * line.
367 *
368 * @param bkpinfo The backup information structure. Fields modified/used:
369 * - Used: @c bkpinfo->backup_data
370 * - Used: @c bkpinfo->backup_media_type
371 * - Used: @c bkpinfo->cdrw_speed
372 * - Used: @c bkpinfo->compression_level
373 * - Used: @c bkpinfo->include_paths
374 * - Used: @c bkpinfo->prefix
375 * - Used: @c bkpinfo->isodir
376 * - Used: @c bkpinfo->manual_cd_tray
377 * - Used: @c bkpinfo->make_cd_use_lilo
378 * - Used: @c bkpinfo->media_device
379 * - Used: @c bkpinfo->nfs_mount
380 * - Used: @c bkpinfo->nonbootable_backup
381 * - Used: @c bkpinfo->scratchdir
382 * - Used: @c bkpinfo->tmpdir
383 * - Used: @c bkpinfo->use_lzo
384 * - Modified: @c bkpinfo->call_before_iso
385 * - Modified: @c bkpinfo->call_make_iso
386 * - Modified: @c bkpinfo->optimal_set_size
387 * - Modified: @c bkpinfo->zip_exe
388 * - Modified: @c bkpinfo->zip_suffix
389 *
390 * @return number of errors, or 0 for success.
391 * @note Also creates directories that are specified in the @c bkpinfo structure but
392 * do not exist.
393 */
394int post_param_configuration(struct s_bkpinfo *bkpinfo)
395{
396 char *extra_cdrom_params;
397 char *mondo_mkisofs_sz;
398 char *command;
399 char *mtpt;
400 char *hostname, *ip_address;
401 int retval = 0;
402 long avm = 0;
403 char *colon;
404 char *cdr_exe;
405 char *tmp;
406 char call_before_iso_user[MAX_STR_LEN] = "\0";
407 int rdsiz_MB;
408 char *iso_dev;
409 char *iso_mnt;
410 char *iso_tmp;
411 char *iso_path;
412 FILE *fd1 = NULL;
413
414 assert(bkpinfo != NULL);
415 malloc_string(extra_cdrom_params);
416 malloc_string(mondo_mkisofs_sz);
417 malloc_string(command);
418 malloc_string(mtpt);
419 malloc_string(hostname);
420 malloc_string(ip_address);
421 malloc_string(cdr_exe);
422 malloc_string(tmp);
423 malloc_string(iso_dev);
424 malloc_string(iso_mnt);
425 malloc_string(iso_tmp);
426 malloc_string(iso_path);
427 bkpinfo->optimal_set_size =
428 (IS_THIS_A_STREAMING_BACKUP(bkpinfo->backup_media_type) ? 16 : 16) *
429 1024;
430
431 mr_msg(1, "Foo");
432 if (bkpinfo->backup_media_type == tape) {
433 mr_msg(1, "Bar");
434 sprintf(tmp, "mt -f %s status", bkpinfo->media_device);
435 mr_msg(1, "tmp = '%s'", tmp);
436 if (run_program_and_log_output(tmp, 3)) {
437 fatal_error
438 ("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.");
439 }
440 }
441 make_hole_for_dir(bkpinfo->scratchdir);
442 make_hole_for_dir(bkpinfo->tmpdir);
443 if (bkpinfo->backup_media_type == iso)
444 make_hole_for_dir(bkpinfo->isodir);
445
446 run_program_and_log_output("uname -a", 5);
447 run_program_and_log_output("cat /etc/*-release", 5);
448 run_program_and_log_output("cat /etc/*issue*", 5);
449 sprintf(g_tmpfs_mountpt, "%s/tmpfs", bkpinfo->tmpdir);
450 sprintf(command, "mkdir -p %s", g_tmpfs_mountpt);
451 paranoid_system(command);
452 rdsiz_MB = PPCFG_RAMDISK_SIZE + g_tape_buffer_size_MB;
453#ifdef __FreeBSD__
454 strcpy(tmp,
455 call_program_and_get_last_line_of_output
456 ("vmstat | tail -1 | tr -s ' ' | cut -d' ' -f6"));
457 avm += atol(tmp);
458 strcpy(tmp,
459 call_program_and_get_last_line_of_output
460 ("swapinfo | grep -v Device | tr -s ' ' | cut -d' ' -f4 | tr '\n' '+' | sed 's/+$//' | bc"));
461 avm += atol(tmp);
462 sprintf(command, "mdmfs -s %d%c md9 %s", rdsiz_MB, 'm',
463 g_tmpfs_mountpt);
464#else
465 strcpy(tmp,
466 call_program_and_get_last_line_of_output
467 ("free | grep ':' | tr -s ' ' '\t' | cut -f2 | head -n1"));
468 avm += atol(tmp);
469 sprintf(command, "mount /dev/shm -t tmpfs %s -o size=%d%c",
470 g_tmpfs_mountpt, rdsiz_MB, 'm');
471 run_program_and_log_output("cat /proc/cpuinfo", 5);
472 run_program_and_log_output
473 ("rpm -q newt newt-devel slang slang-devel ncurses ncurses-devel gcc",
474 5);
475#endif
476 if (avm / 1024 > rdsiz_MB * 3) {
477 if (run_program_and_log_output(command, 5)) {
478 g_tmpfs_mountpt[0] = '\0';
479 log_it("Failed to mount tmpfs");
480 } else {
481 log_it("Tmpfs mounted OK - %d MB", rdsiz_MB);
482 }
483 } else {
484 g_tmpfs_mountpt[0] = '\0';
485 log_it("It doesn't seem you have enough swap to use tmpfs. Fine.");
486 }
487
488 if (bkpinfo->use_lzo) {
489 strcpy(bkpinfo->zip_exe, "lzop");
490 strcpy(bkpinfo->zip_suffix, "lzo");
491 } else if (bkpinfo->use_gzip) {
492 strcpy(bkpinfo->zip_exe, "gzip");
493 strcpy(bkpinfo->zip_suffix, "gz");
494 } else if (bkpinfo->compression_level != 0) {
495 strcpy(bkpinfo->zip_exe, "bzip2");
496 strcpy(bkpinfo->zip_suffix, "bz2");
497 } else {
498 bkpinfo->zip_exe[0] = bkpinfo->zip_suffix[0] = '\0';
499 }
500
501// DVD
502
503 if (bkpinfo->backup_media_type == dvd) {
504 extra_cdrom_params[0] = '\0';
505 mondo_mkisofs_sz[0] = '\0';
506 if (find_home_of_exe("growisofs")) {
507 strcpy(cdr_exe, "growisofs");
508 } // unlikely to be used
509 else {
510 fatal_error("Please install growisofs.");
511 }
512 if (bkpinfo->nonbootable_backup) {
513 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_NONBOOT);
514 } else if
515#ifdef __FreeBSD__
516 (TRUE)
517#else
518 (bkpinfo->make_cd_use_lilo)
519#endif
520#ifdef __IA64__
521 {
522 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_ELILO);
523 }
524#else
525 {
526 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_LILO);
527 }
528#endif
529 else
530 {
531 strcat(mondo_mkisofs_sz, MONDO_GROWISOFS_REGULAR_SYSLINUX);
532 }
533 if (bkpinfo->manual_cd_tray) {
534 fatal_error("Manual CD tray + DVD not supported yet.");
535 // -m isn't supported by growisofs, BTW...
536 } else {
537 sprintf(bkpinfo->call_make_iso,
538 "%s %s -Z %s . 2>> _ERR_",
539 mondo_mkisofs_sz,
540 extra_cdrom_params, bkpinfo->media_device);
541 }
542 if (getenv ("SUDO_COMMAND")) {
543 sprintf(command, "strings `which growisofs` | grep -c SUDO_COMMAND");
544 if (!strcmp(call_program_and_get_last_line_of_output(command), "1")) {
545 popup_and_OK("Fatal Error: Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
546 fatal_error("Can't write DVDs as sudo because growisofs doesn't support this - see the growisofs manpage for details.");
547 }
548 }
549 mr_msg(2, "call_make_iso (DVD res) is ... %s",
550 bkpinfo->call_make_iso);
551 } // end of DVD code
552
553// CD-R or CD-RW
554 if (bkpinfo->backup_media_type == cdrw
555 || bkpinfo->backup_media_type == cdr) {
556 extra_cdrom_params[0] = '\0';
557 if (!bkpinfo->manual_cd_tray) {
558 strcat(extra_cdrom_params, "-waiti ");
559 }
560 if (bkpinfo->backup_media_type == cdrw) {
561 strcat(extra_cdrom_params, "blank=fast ");
562 }
563 if (find_home_of_exe("cdrecord")) {
564 strcpy(cdr_exe, "cdrecord");
565 } else if (find_home_of_exe("dvdrecord")) {
566 strcpy(cdr_exe, "dvdrecord");
567 } else {
568 fatal_error("Please install either cdrecord or dvdrecord.");
569 }
570 if (bkpinfo->nonbootable_backup) {
571 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_NONBOOT);
572 } else if
573#ifdef __FreeBSD__
574 (TRUE)
575#else
576 (bkpinfo->make_cd_use_lilo)
577#endif
578#ifdef __IA64__
579 {
580 strcat(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_ELILO);
581 }
582#else
583 {
584 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_LILO);
585 }
586#endif
587 else
588 {
589 strcpy(mondo_mkisofs_sz, MONDO_MKISOFS_REGULAR_SYSLINUX);
590 }
591 if (bkpinfo->manual_cd_tray) {
592 if (bkpinfo->call_before_iso[0] == '\0') {
593 sprintf(bkpinfo->call_before_iso,
594 "%s -o %s/temporary.iso . 2>> _ERR_",
595 mondo_mkisofs_sz, bkpinfo->tmpdir);
596 } else {
597 strncpy(call_before_iso_user, bkpinfo->call_before_iso, MAX_STR_LEN);
598 sprintf (bkpinfo->call_before_iso,
599 "( %s -o %s/temporary.iso . 2>> _ERR_ ; %s )",
600 mondo_mkisofs_sz, bkpinfo->tmpdir, call_before_iso_user);
601 }
602 log_it("bkpinfo->call_before_iso = %s", bkpinfo->call_before_iso);
603 sprintf(bkpinfo->call_make_iso,
604 "%s %s -v %s fs=4m dev=%s speed=%d %s/temporary.iso",
605 cdr_exe, (bkpinfo->please_dont_eject) ? " " : "-eject",
606 extra_cdrom_params, bkpinfo->media_device,
607 bkpinfo->cdrw_speed, bkpinfo->tmpdir);
608 } else {
609 sprintf(bkpinfo->call_make_iso,
610 "%s . 2>> _ERR_ | %s %s %s fs=4m dev=%s speed=%d -",
611 mondo_mkisofs_sz, cdr_exe,
612 (bkpinfo->please_dont_eject) ? " " : "-eject",
613 extra_cdrom_params, bkpinfo->media_device,
614 bkpinfo->cdrw_speed);
615 }
616 } // end of CD code
617
618 /*
619 if (bkpinfo->backup_data && bkpinfo->backup_media_type == tape)
620 {
621 sprintf (tmp,
622 "dd if=/dev/zero of=%s bs=%ld count=32 2> /dev/null",
623 bkpinfo->media_device, bkpinfo->internal_tape_block_size);
624 if (system(tmp))
625 {
626 retval++;
627 fprintf (stderr,
628 "Cannot write to tape device. Is the tape set read-only?\n");
629 }
630 } // end of tape code
631 */
632
633
634 if (bkpinfo->backup_media_type == iso) {
635
636/* Patch by Conor Daly <conor.daly@met.ie>
637 * 23-june-2004
638 * Break up isodir into iso_mnt and iso_path
639 * These will be used along with iso-dev at restore time
640 * to locate the ISOs where ever they're mounted
641 */
642
643 log_it("isodir = %s", bkpinfo->isodir);
644 sprintf(command, "df -P %s | tail -n1 | cut -d' ' -f1",
645 bkpinfo->isodir);
646 log_it("command = %s", command);
647 sprintf(iso_dev, "%s",
648 call_program_and_get_last_line_of_output(command));
649 log_it("res of it = %s", iso_dev);
650
651 fd1 = mr_fopen(MONDORESTORECFG, "a");
652 mr_fprintf(fd1, "iso-dev %s\n", iso_dev);
653
654 sprintf(command, "mount | grep -w %s | tail -n1 | cut -d' ' -f3",
655 iso_dev);
656 log_it("command = %s", command);
657 sprintf(iso_mnt, "%s",
658 call_program_and_get_last_line_of_output(command));
659
660 log_it("res of it = %s", iso_mnt);
661 mr_fprintf(fd1, "iso-mnt %s\n", iso_mnt);
662 log_it("isomnt: %s, %d", iso_mnt, strlen(iso_mnt));
663
664 sprintf(iso_tmp, "%s", bkpinfo->isodir);
665 if (strlen(iso_tmp) < strlen(iso_mnt)) {
666 iso_path[0] = '\0';
667 } else {
668 sprintf(iso_path, "%s", iso_tmp + strlen(iso_mnt));
669 }
670 log_it("isodir: %s", iso_path);
671 mr_fprintf(fd1, "isodir %s\n", iso_path);
672
673 log_it("iso-prefix: %s", bkpinfo->prefix);
674 mr_fprintf(fd1, "iso-prefix %s\n", bkpinfo->prefix);
675
676 mr_fclose(fd1);
677 } // end of iso code
678
679 if (bkpinfo->backup_media_type == nfs) {
680 strcpy(hostname, bkpinfo->nfs_mount);
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,
692 hstrerror(h_errno));
693 retval++;
694 } else {
695 strcpy(ip_address, inet_ntoa
696 ((struct in_addr)
697 *((struct in_addr *) hent->h_addr)));
698 strcat(ip_address, strchr(bkpinfo->nfs_mount, ':'));
699 strcpy(bkpinfo->nfs_mount, ip_address);
700 }
701 }
702 store_nfs_config(bkpinfo);
703 }
704
705 log_it("Finished processing incoming params");
706 if (retval) {
707 fprintf(stderr, "Type 'man mondoarchive' for help.\n");
708 }
709 sprintf(tmp, "%s", MONDO_TMPISOS); /* added #define 22 apr 2002 */
710 if (does_file_exist(tmp)) {
711 unlink(tmp);
712 }
713 if (strlen(bkpinfo->tmpdir) < 2 || strlen(bkpinfo->scratchdir) < 2) {
714 log_it("tmpdir or scratchdir are blank/missing");
715 retval++;
716 }
717 if (bkpinfo->include_paths[0] == '\0') {
718 // fatal_error ("Why no backup path?");
719 strcpy(bkpinfo->include_paths, "/");
720 }
721 chmod(bkpinfo->scratchdir, 0700);
722 chmod(bkpinfo->tmpdir, 0700);
723 g_backup_media_type = bkpinfo->backup_media_type;
724 mr_free(mtpt);
725 mr_free(extra_cdrom_params);
726 mr_free(mondo_mkisofs_sz);
727 mr_free(command);
728 mr_free(hostname);
729 mr_free(ip_address);
730 mr_free(cdr_exe);
731 mr_free(tmp);
732 mr_free(iso_dev);
733 mr_free(iso_mnt);
734 mr_free(iso_tmp);
735 mr_free(iso_path);
736 return (retval);
737}
738
739
740
741/**
742 * Do some miscellaneous setup tasks to be performed before filling @c bkpinfo.
743 * Seeds the random-number generator, loads important modules, checks the sanity
744 * of the user's Linux distribution, and deletes logfile.
745 * @param bkpinfo The backup information structure. Will be initialized.
746 * @return number of errors (0 for success)
747 */
748int pre_param_configuration(struct s_bkpinfo *bkpinfo)
749{
750 int res = 0;
751
752 make_hole_for_dir(MNT_CDROM);
753 assert(bkpinfo != NULL);
754 srandom((unsigned long) (time(NULL)));
755 insmod_crucial_modules();
756 reset_bkpinfo(bkpinfo); // also sets defaults ('/'=backup path, 3=compression level)
757 if (bkpinfo->disaster_recovery) {
758 if (!does_nonMS_partition_exist()) {
759 fatal_error
760 ("I am in disaster recovery mode\nPlease don't run mondoarchive.");
761 }
762 }
763
764 unlink(MONDO_TRACEFILE);
765 run_program_and_log_output("rm -Rf /tmp/changed.files*", FALSE);
766 if (find_and_store_mondoarchives_home(g_mondo_home)) {
767 fprintf(stderr,
768 "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");
769 res++;
770 return (res);
771 }
772 res += some_basic_system_sanity_checks();
773 if (res) {
774 log_it("Your distribution did not pass Mondo's sanity test.");
775 }
776 g_current_media_number = 1;
777 bkpinfo->postnuke_tarball[0] = bkpinfo->nfs_mount[0] = '\0';
778 return (res);
779}
780
781
782
783
784/**
785 * Reset all fields of the backup information structure to a sensible default.
786 * @param bkpinfo The @c bkpinfo to reset.
787 */
788void reset_bkpinfo(struct s_bkpinfo *bkpinfo)
789{
790 int i;
791
792 mr_msg(1, "Hi");
793 assert(bkpinfo != NULL);
794 memset((void *) bkpinfo, 0, sizeof(struct s_bkpinfo));
795 bkpinfo->manual_cd_tray = FALSE;
796 bkpinfo->internal_tape_block_size = DEFAULT_INTERNAL_TAPE_BLOCK_SIZE;
797 bkpinfo->media_device[0] = '\0';
798 for (i = 0; i <= MAX_NOOF_MEDIA; i++) {
799 bkpinfo->media_size[i] = -1;
800 }
801 bkpinfo->boot_loader = '\0';
802 bkpinfo->boot_device[0] = '\0';
803 bkpinfo->zip_exe[0] = '\0';
804 bkpinfo->zip_suffix[0] = '\0';
805 bkpinfo->restore_path[0] = '\0';
806 bkpinfo->use_lzo = FALSE;
807 bkpinfo->use_gzip = FALSE;
808 bkpinfo->do_not_compress_these[0] = '\0';
809 bkpinfo->verify_data = FALSE;
810 bkpinfo->backup_data = FALSE;
811 bkpinfo->restore_data = FALSE;
812 bkpinfo->disaster_recovery =
813 (am_I_in_disaster_recovery_mode()? TRUE : FALSE);
814 if (bkpinfo->disaster_recovery) {
815 strcpy(bkpinfo->isodir, "/");
816 } else {
817 strcpy(bkpinfo->isodir, "/root/images/mondo");
818 }
819 strcpy(bkpinfo->prefix, STD_PREFIX);
820
821 bkpinfo->scratchdir[0] = '\0';
822 bkpinfo->make_filelist = TRUE; // unless -J supplied to mondoarchive
823 sprintf(bkpinfo->tmpdir, "/tmp/tmpfs/mondo.tmp.%d", (int) (random() % 32768)); // for mondorestore
824 bkpinfo->optimal_set_size = 0;
825 bkpinfo->backup_media_type = none;
826 strcpy(bkpinfo->include_paths, "/");
827 bkpinfo->exclude_paths[0] = '\0';
828 bkpinfo->call_before_iso[0] = '\0';
829 bkpinfo->call_make_iso[0] = '\0';
830 bkpinfo->call_burn_iso[0] = '\0';
831 bkpinfo->call_after_iso[0] = '\0';
832 bkpinfo->image_devs[0] = '\0';
833 bkpinfo->postnuke_tarball[0] = '\0';
834 bkpinfo->kernel_path[0] = '\0';
835 bkpinfo->nfs_mount[0] = '\0';
836 bkpinfo->nfs_remote_dir[0] = '\0';
837 bkpinfo->wipe_media_first = FALSE;
838 bkpinfo->differential = FALSE;
839 bkpinfo->cdrw_speed = 0;
840// patch by Herman Kuster
841 bkpinfo->differential = 0;
842// patch end
843 bkpinfo->compression_level = 3;
844}
845
846
847
848
849/**
850 * Get the remaining free space (in MB) on @p partition.
851 * @param partition The partition to check free space on (either a device or a mountpoint).
852 * @return The free space on @p partition, in MB.
853 */
854long free_space_on_given_partition(char *partition)
855{
856 char command[MAX_STR_LEN], out_sz[MAX_STR_LEN];
857 long res;
858
859 assert_string_is_neither_NULL_nor_zerolength(partition);
860
861 sprintf(command, "df -m -P %s &> /dev/null", partition);
862 if (system(command)) {
863 return (-1);
864 } // partition does not exist
865 sprintf(command, "df -m -P %s | tail -n1 | tr -s ' ' '\t' | cut -f4",
866 partition);
867 strcpy(out_sz, call_program_and_get_last_line_of_output(command));
868 if (strlen(out_sz) == 0) {
869 return (-1);
870 } // error within df, probably
871 res = atol(out_sz);
872 return (res);
873}
874
875
876
877/**
878 * Check the user's system for sanity. Checks performed:
879 * - make sure user has enough RAM (32mb required, 64mb recommended)
880 * - make sure user has enough free space in @c /
881 * - check kernel for ramdisk support
882 * - make sure afio, cdrecord, mkisofs, bzip2, awk, md5sum, strings, mindi, and buffer exist
883 * - make sure CD-ROM is unmounted
884 * - make sure /etc/modules.conf exists
885 * - make sure user's mountlist is OK by running <tt>mindi --makemountlist</tt>
886 *
887 * @return number of problems with the user's setup (0 for success)
888 */
889int some_basic_system_sanity_checks()
890{
891
892 /*@ buffers ************ */
893 char tmp[MAX_STR_LEN];
894 // char command[MAX_STR_LEN];
895
896 /*@ int's *************** */
897 int retval = 0;
898 long Lres;
899
900
901 mvaddstr_and_log_it(g_currentY, 0,
902 "Checking sanity of your Linux distribution");
903#ifndef __FreeBSD__
904 if (system("which mkfs.vfat &> /dev/null")
905 && !system("which mkfs.msdos &> /dev/null")) {
906 log_it
907 ("OK, you've got mkfs.msdos but not mkfs.vfat; time for the fairy to wave her magic wand...");
908 run_program_and_log_output
909 ("ln -sf `which mkfs.msdos` /sbin/mkfs.vfat", FALSE);
910 }
911 strcpy(tmp,
912 call_program_and_get_last_line_of_output
913 ("free | grep Mem | head -n1 | tr -s ' ' '\t' | cut -f2"));
914 if (atol(tmp) < 35000) {
915 retval++;
916 log_to_screen("You must have at least 32MB of RAM to use Mondo.");
917 }
918 if (atol(tmp) < 66000) {
919 log_to_screen
920 ("WARNING! You have very little RAM. Please upgrade to 64MB or more.");
921 }
922#endif
923
924 Lres = free_space_on_given_partition("/var/cache");
925 log_it("Free space on given partition = %ld MB", Lres);
926
927 if (Lres < 50) {
928 fatal_error("Your /var/cache partition has <50MB free. Please adjust your partition table to something saner.");
929 }
930
931 if (system("which " MKE2FS_OR_NEWFS " > /dev/null 2> /dev/null")) {
932 retval++;
933 log_to_screen
934 ("Unable to find " MKE2FS_OR_NEWFS " in system path.");
935 fatal_error
936 ("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. :)");
937 }
938#ifndef __FreeBSD__
939 if (run_program_and_log_output
940 ("grep ramdisk /proc/devices", FALSE)) {
941 if (!ask_me_yes_or_no
942 ("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?"))
943 {
944 // retval++;
945 log_to_screen
946 ("It looks as if your kernel lacks ramdisk and initrd support.");
947 log_to_screen
948 ("I'll allow you to proceed but FYI, if I'm right, your kernel is broken.");
949 }
950 }
951#endif
952 retval += whine_if_not_found(MKE2FS_OR_NEWFS);
953 retval += whine_if_not_found("mkisofs");
954 if (system("which dvdrecord > /dev/null 2> /dev/null")) {
955 retval += whine_if_not_found("cdrecord");
956 }
957 retval += whine_if_not_found("bzip2");
958 retval += whine_if_not_found("gzip");
959 retval += whine_if_not_found("awk");
960 retval += whine_if_not_found("md5sum");
961 retval += whine_if_not_found("strings");
962 retval += whine_if_not_found("mindi");
963 retval += whine_if_not_found("buffer");
964
965 // abort if Windows partition but no ms-sys and parted
966 if (!run_program_and_log_output
967 ("mount | grep -w vfat | grep -vE \"/dev/fd|nexdisk\"", 0)
968 ||
969 !run_program_and_log_output
970 ("mount | grep -w dos | grep -vE \"/dev/fd|nexdisk\"", 0)) {
971 log_to_screen("I think you have a Windows 9x partition.");
972 retval += whine_if_not_found("parted");
973#ifndef __IA64__
974 /* IA64 always has one vfat partition for EFI even without Windows */
975 // retval +=
976 if (!find_home_of_exe("ms-sys")) {
977 log_to_screen("Please install ms-sys just in case.");
978 }
979#endif
980 }
981
982 if (!find_home_of_exe("cmp")) {
983 if (!find_home_of_exe("true")) {
984 whine_if_not_found("cmp");
985 } else {
986 log_to_screen
987 ("Your system lacks the 'cmp' binary. I'll create a dummy cmp for you.");
988 if (run_program_and_log_output
989 ("cp -f `which true` /usr/bin/cmp", 0)) {
990 fatal_error("Failed to create dummy 'cmp' file.");
991 }
992 }
993 }
994 run_program_and_log_output
995 ("umount `mount | grep cdr | cut -d' ' -f3 | tr '\n' ' '`", 5);
996 strcpy(tmp,
997 call_program_and_get_last_line_of_output
998 ("mount | grep -E \"cdr(om|w)\""));
999 if (strcmp("", tmp)) {
1000 if (strstr(tmp, "autofs")) {
1001 log_to_screen
1002 ("Your CD-ROM is mounted via autofs. I therefore cannot tell");
1003 log_to_screen
1004 ("if a CD actually is inserted. If a CD is inserted, please");
1005 log_to_screen("eject it. Thank you.");
1006 log_it
1007 ("Ignoring autofs CD-ROM 'mount' since we hope nothing's in it.");
1008 } else
1009 if (run_program_and_log_output("uname -a | grep Knoppix", 5)) {
1010 retval++;
1011 fatal_error
1012 ("Your CD-ROM drive is mounted. Please unmount it.");
1013 }
1014 }
1015#ifndef __FreeBSD__
1016 if (!does_file_exist("/etc/modules.conf")) {
1017 if (does_file_exist("/etc/conf.modules")) {
1018 log_it("Linking /etc/modules.conf to /etc/conf.modules");
1019 run_program_and_log_output
1020 ("ln -sf /etc/conf.modules /etc/modules.conf", 5);
1021 } else if (does_file_exist("/etc/modprobe.d")) {
1022 log_it
1023 ("Directory /etc/modprobe.d found. mindi will use its contents.");
1024 } else if (does_file_exist("/etc/modprobe.conf")) {
1025 log_it("Linking /etc/modules.conf to /etc/modprobe.conf");
1026 run_program_and_log_output
1027 ("ln -sf /etc/modprobe.conf /etc/modules.conf", 5);
1028 } else {
1029 retval++;
1030 log_to_screen
1031 ("Please find out what happened to /etc/modules.conf");
1032 }
1033 }
1034#endif
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 if (run_program_and_log_output
1051 ("mindi --makemountlist /tmp/mountlist.txt.test", 5)) {
1052 log_to_screen
1053 ("Mindi --makemountlist /tmp/mountlist.txt.test failed for some reason.");
1054 log_to_screen
1055 ("Please run that command by hand and examine /var/log/mindi.log");
1056 log_to_screen
1057 ("for more information. Perhaps your /etc/fstab file is insane.");
1058 log_to_screen
1059 ("Perhaps Mindi's MakeMountlist() subroutine has a bug. We'll see.");
1060 retval++;
1061 }
1062
1063 if (!run_program_and_log_output("parted2fdisk -l | grep -i raid", 1)
1064 && !does_file_exist("/etc/raidtab")) {
1065 log_to_screen
1066 ("You have RAID partitions but no /etc/raidtab - creating one from /proc/mdstat");
1067 create_raidtab_from_mdstat("/etc/raidtab");
1068 }
1069
1070 if (retval) {
1071 mvaddstr_and_log_it(g_currentY++, 74, "Failed.");
1072 } else {
1073 mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1074 }
1075 return (retval);
1076}
1077
1078/**
1079 * Retrieve the line containing @p label from the config file.
1080 * @param config_file The file to read from, usually @c /tmp/mondo-restore.cfg.
1081 * @param label What to read from the file.
1082 * @param value Where to put it.
1083 * @return 0 for success, 1 for failure.
1084 */
1085int read_cfg_var(char *config_file, char *label, char *value)
1086{
1087 /*@ buffer ****************************************************** */
1088 char command[MAX_STR_LEN * 2];
1089 char tmp[MAX_STR_LEN];
1090
1091 /*@ end vars *************************************************** */
1092
1093 assert_string_is_neither_NULL_nor_zerolength(config_file);
1094 assert_string_is_neither_NULL_nor_zerolength(label);
1095 if (!does_file_exist(config_file)) {
1096 sprintf(tmp, "(read_cfg_var) Cannot find %s config file",
1097 config_file);
1098 log_to_screen(tmp);
1099 value[0] = '\0';
1100 return (1);
1101 } else if (strstr(value, "/dev/") && strstr(value, "t0")
1102 && !strcmp(label, "media-dev")) {
1103 mr_msg(2, "FYI, I shan't read new value for %s - already got %s",
1104 label, value);
1105 return (0);
1106 } else {
1107 sprintf(command, "grep '%s .*' %s| cut -d' ' -f2,3,4,5",
1108 label, config_file);
1109 strcpy(value, call_program_and_get_last_line_of_output(command));
1110 if (strlen(value) == 0) {
1111 return (1);
1112 } else {
1113 return (0);
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[MAX_STR_LEN];
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 mr_msg(3, "No autofs detected.");
1186 } else {
1187 mr_msg(3, "%s --- autofs detected", g_autofs_exe);
1188// FIXME -- only disable it if it's running --- sprintf(tmp, "%s status", autofs_exe);
1189 sprintf(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 }
1197}
1198
1199/**
1200 * If autofs was stopped earlier, restart it.
1201 */
1202void restart_autofs_if_necessary()
1203{
1204 char tmp[MAX_STR_LEN];
1205
1206 if (!g_autofs_stopped || !g_autofs_exe[0]) {
1207 mr_msg(3, "No autofs detected.");
1208 return;
1209 }
1210 sprintf(tmp, "%s start", g_autofs_exe);
1211 if (run_program_and_log_output(tmp, 2)) {
1212 log_it("Failed to start autofs");
1213 } else {
1214 g_autofs_stopped = FALSE;
1215 log_it("Started autofs OK");
1216 }
1217}
1218
1219
1220/**
1221 * If this is a distribution like Gentoo that doesn't keep /boot mounted, mount it.
1222 */
1223void mount_boot_if_necessary()
1224{
1225 char tmp[MAX_STR_LEN];
1226 char command[MAX_STR_LEN];
1227
1228 mr_msg(1, "Started sub");
1229 mr_msg(4, "About to set g_boot_mountpt[0] to '\\0'");
1230 g_boot_mountpt[0] = '\0';
1231 mr_msg(4, "Done. Great. Seeting command to something");
1232 strcpy(command,
1233 "grep -v \":\" /etc/fstab | grep -vE '^#.*$' | grep -E \"[ ]/boot[ ]\" | tr -s ' ' '\t' | cut -f1 | head -n1");
1234 mr_msg(4, "Cool. Command = '%s'", command);
1235 strcpy(tmp, call_program_and_get_last_line_of_output(command));
1236 mr_msg(4, "tmp = '%s'", tmp);
1237 if (tmp[0]) {
1238 log_it("/boot is at %s according to /etc/fstab", tmp);
1239 if (strstr(tmp, "LABEL=")) {
1240 if (!run_program_and_log_output("mount /boot", 5)) {
1241 strcpy(g_boot_mountpt, "/boot");
1242 mr_msg(1, "Mounted /boot");
1243 } else {
1244 log_it("...ignored cos it's a label :-)");
1245 }
1246 } else {
1247 sprintf(command, "mount | grep -E '^%s'", tmp);
1248 mr_msg(3, "command = %s", command);
1249 if (run_program_and_log_output(command, 5)) {
1250 strcpy(g_boot_mountpt, tmp);
1251 sprintf(tmp,
1252 "%s (your /boot partition) is not mounted. I'll mount it before backing up",
1253 g_boot_mountpt);
1254 log_it(tmp);
1255 sprintf(tmp, "mount %s", g_boot_mountpt);
1256 if (run_program_and_log_output(tmp, 5)) {
1257 g_boot_mountpt[0] = '\0';
1258 mr_msg(1, "Plan B");
1259 if (!run_program_and_log_output("mount /boot", 5)) {
1260 strcpy(g_boot_mountpt, "/boot");
1261 mr_msg(1, "Plan B worked");
1262 } else {
1263 mr_msg(1,
1264 "Plan B failed. Unable to mount /boot for backup purposes. This probably means /boot is mounted already, or doesn't have its own partition.");
1265 }
1266 }
1267 }
1268 }
1269 }
1270 mr_msg(1, "Ended sub");
1271}
1272
1273
1274/**
1275 * If we mounted /boot earlier, unmount it.
1276 */
1277void unmount_boot_if_necessary()
1278{
1279 char tmp[MAX_STR_LEN];
1280
1281 mr_msg(3, "starting");
1282 if (g_boot_mountpt[0]) {
1283 sprintf(tmp, "umount %s", g_boot_mountpt);
1284 if (run_program_and_log_output(tmp, 5)) {
1285 log_it("WARNING - unable to unmount /boot");
1286 }
1287 }
1288 mr_msg(3, "leaving");
1289}
1290
1291
1292
1293/**
1294 * Write a line to a configuration file. Writes a line of the form,
1295 * @c label @c value.
1296 * @param config_file The file to write to. Usually @c mondo-restore.cfg.
1297 * @param label What to call this bit of data you're writing.
1298 * @param value The bit of data you're writing.
1299 * @return 0 for success, 1 for failure.
1300 */
1301int write_cfg_var(char *config_file, char *label, char *value)
1302{
1303 /*@ buffers ***************************************************** */
1304 char command[MAX_STR_LEN * 2];
1305 char tempfile[MAX_STR_LEN];
1306 char tmp[MAX_STR_LEN];
1307
1308
1309 /*@ end vars *************************************************** */
1310 assert_string_is_neither_NULL_nor_zerolength(config_file);
1311 assert_string_is_neither_NULL_nor_zerolength(label);
1312 assert(value != NULL);
1313 if (!does_file_exist(config_file)) {
1314 sprintf(tmp, "(write_cfg_file) Cannot find %s config file",
1315 config_file);
1316 log_to_screen(tmp);
1317 return (1);
1318 }
1319 strcpy(tempfile,
1320 call_program_and_get_last_line_of_output
1321 ("mktemp -q /tmp/mojo-jojo.blah.XXXXXX"));
1322 if (does_file_exist(config_file)) {
1323 sprintf(command, "grep -vE '^%s .*$' %s > %s",
1324 label, config_file, tempfile);
1325 paranoid_system(command);
1326 }
1327 sprintf(command, "echo \"%s %s\" >> %s", label, value, tempfile);
1328 paranoid_system(command);
1329 sprintf(command, "mv -f %s %s", tempfile, config_file);
1330 paranoid_system(command);
1331 unlink(tempfile);
1332 return (0);
1333}
1334
1335
1336/**
1337 * The standard log_debug_msg() (mr_msg() also due to a macro). Writes some describing
1338 * information to the logfile.
1339 */
1340void standard_log_debug_msg(int debug_level, const char *szFile,
1341 const char *szFunction, int nLine,
1342 const char *fmt, ...)
1343{
1344 va_list args;
1345 int i;
1346 static int depth = 0;
1347 char *tmp;
1348 FILE *fout;
1349
1350 if (depth > 5) {
1351 depth--;
1352 return;
1353 }
1354 depth++;
1355
1356 malloc_string(tmp);
1357
1358 if (debug_level <= g_loglevel) {
1359 va_start(args, fmt);
1360 if (!(fout = fopen(MONDO_LOGFILE, "a"))) {
1361 return;
1362 } // fatal_error("Failed to openout to logfile - sheesh..."); }
1363
1364 // add tabs to distinguish log levels
1365 if (debug_level > 0) {
1366 for (i = 1; i < debug_level; i++)
1367 fprintf(fout, "\t");
1368 if (getpid() == g_main_pid)
1369 fprintf(fout, "[Main] %s->%s#%d: ", szFile, szFunction,
1370 nLine);
1371 else if (getpid() == g_buffer_pid && g_buffer_pid > 0)
1372 fprintf(fout, "[Buff] %s->%s#%d: ", szFile, szFunction,
1373 nLine);
1374 else
1375 fprintf(fout, "[TH=%d] %s->%s#%d: ", getpid(), szFile,
1376 szFunction, nLine);
1377 }
1378 vfprintf(fout, fmt, args);
1379
1380 // do not slow down the progran if standard debug level
1381 // must be enabled: if no flush, the log won't be up-to-date if there
1382 // is a segfault
1383 //if (g_dwDebugLevel != 1)
1384
1385 va_end(args);
1386 fprintf(fout, "\n");
1387 paranoid_fclose(fout);
1388 }
1389 depth--;
1390 mr_free(tmp);
1391}
1392
1393/**
1394 * Function pointer to the @c log_debug_msg function to use. Points to standard_log_debug_msg() by default.
1395 */
1396void (*log_debug_msg) (int, const char *, const char *, int, const char *,
1397 ...) = standard_log_debug_msg;
1398
1399
1400/**
1401 * If @p y, malloc @p x, else free @p x.
1402 * @bug This function seems orphaned. Please remove.
1403 */
1404#define do_alloc_or_free_depending(x,y) { if(y) {x=mr_malloc(MAX_STR_LEN);} else {mr_free(x);} }
1405
1406/**
1407 * Allocate or free important globals, depending on @p mal.
1408 * @param mal If TRUE, malloc; if FALSE, free.
1409 */
1410void do_libmondo_global_strings_thing(int mal)
1411{
1412 if (mal) {
1413 iamhere("Malloc'ing globals");
1414 malloc_string(g_boot_mountpt);
1415 malloc_string(g_mondo_home);
1416 malloc_string(g_tmpfs_mountpt);
1417 malloc_string(g_erase_tmpdir_and_scratchdir);
1418 malloc_string(g_serial_string);
1419 malloc_string(g_magicdev_command);
1420 } else {
1421 iamhere("Freeing globals");
1422 mr_free(g_boot_mountpt);
1423 mr_free(g_mondo_home);
1424 mr_free(g_tmpfs_mountpt);
1425 mr_free(g_erase_tmpdir_and_scratchdir);
1426 mr_free(g_serial_string);
1427 mr_free(g_magicdev_command);
1428 }
1429
1430 /*
1431 char**list_of_arrays[] = {
1432 &g_boot_mountpt,
1433 &g_mondo_home,
1434 &g_tmpfs_mountpt,
1435 &g_erase_tmpdir_and_scratchdir,
1436 &g_serial_string,
1437 &g_magicdev_command,
1438 NULL};
1439
1440 char**ppcurr;
1441 int i;
1442
1443 for(i=0;list_of_arrays[i];i++)
1444 {
1445 mr_msg(5, "Allocating %d", i);
1446 ppcurr = list_of_arrays[i];
1447 if (mal)
1448 { *ppcurr = malloc(MAX_STR_LEN); }
1449 else
1450 {
1451 if (*ppcurr)
1452 {
1453 free(*ppcurr);
1454 }
1455 }
1456 }
1457 mr_msg(5, "Returning");
1458 */
1459}
1460
1461/**
1462 * Allocate important globals.
1463 * @see do_libmondo_global_strings_thing
1464 */
1465void malloc_libmondo_global_strings(void)
1466{
1467 do_libmondo_global_strings_thing(1);
1468}
1469
1470/**
1471 * Free important globals.
1472 * @see do_libmondo_global_strings_thing
1473 */
1474void free_libmondo_global_strings(void)
1475{
1476 do_libmondo_global_strings_thing(0);
1477}
1478
1479
1480
1481/**
1482 * Stop @c magicdev if it's running.
1483 * The command used to start it is saved in @p g_magicdev_command.
1484 */
1485void stop_magicdev_if_necessary()
1486{
1487 strcpy(g_magicdev_command,
1488 call_program_and_get_last_line_of_output
1489 ("ps ax | grep -w magicdev | grep -v grep | tr -s '\t' ' '| cut -d' ' -f6-99"));
1490 if (g_magicdev_command[0]) {
1491 mr_msg(1, "g_magicdev_command = '%s'", g_magicdev_command);
1492 paranoid_system("killall magicdev");
1493 }
1494}
1495
1496
1497/**
1498 * Restart magicdev if it was stopped.
1499 */
1500void restart_magicdev_if_necessary()
1501{
1502 char *tmp;
1503
1504 malloc_string(tmp);
1505 if (g_magicdev_command && g_magicdev_command[0]) {
1506 sprintf(tmp, "%s &", g_magicdev_command);
1507 paranoid_system(tmp);
1508 }
1509 mr_free(tmp);
1510}
1511
1512/* @} - end of utilityGroup */
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