source: MondoRescue/branches/stable/mondo/src/mondoarchive/main.c @ 945

Last change on this file since 945 was 945, checked in by Bruno Cornec, 14 years ago

Typos corrected

  • Property svn:keywords set to Id
File size: 16.6 KB
Line 
1/***************************************************************************
2                          main.c  -  description
3                             -------------------
4    begin                : Fri Apr 19 16:40:35 EDT 2002
5    copyright            : (C) 2002 by Stan Benoit
6    email                : troff@nakedsoul.org
7    cvsid                : $Id: main.c 945 2006-11-18 00:35:29Z bruno $
8 ***************************************************************************/
9
10/***************************************************************************
11 *                                                                         *
12 *   This program is free software; you can redistribute it and/or modify  *
13 *   it under the terms of the GNU General Public License as published by  *
14 *   the Free Software Foundation; either version 2 of the License, or     *
15 *   (at your option) any later version.                                   *
16 *                                                                         *
17 ***************************************************************************/
18
19/** change log ****** MONDO-DEVEL
20
21
2212/10
23- disable stopping/starting of autofs
24
2510/01
26- update g_erase_tmpdir_and_scratchdir to delete user-specified tmpdir, scratchdir
27
2806/19
29- added AUX_VER
30
3106/14/2004
32- use mondorescue.iso, not mindi.iso
33
3402/10/2004
35- tell users where BusyBox's sources are
36
3711/14/2003
38- cleaned up logging at end#
39
4010/23
41- don't try to test-read tape ... That's already
42  handled by post_param_configuration()
43 
4410/19
45- if your PATH var is too long, abort
46
4709/23
48- added some comments
49- malloc/free global strings in new subroutines - malloc_libmondo_global_strings()
50  and free_libmondo_global_strings() - which are in libmondo-tools.c
51- better magicdev support
52
53
5409/16
55- delete /var/log/partimagehack-debug.log at start of main()
56
5709/15
58- added askbootloader
59
6009/09
61- if your tape is weird, I'll pause between backup and verify
62- fixed silly bug in main() - re: say_at_end
63
6401/01 - 08/31
65- call 'dmesg -n1' at start, to shut the kernel logger up
66- moved g_erase_tmpdir_and_scratchdir to common/newt-specific.c
67- added 'don't panic' msg to start of logfile
68- added 'nice(20)' to main()
69- added lots of assert()'s and log_OS_error()'s
70- clean-up (Hugo)
71- make post_param_configuration() setup g_erase_tmpdir_and_scratchdir
72- if --version then print & exit quickly
73- re-run g_erase_tmpdir_and_scratchdir via system() at very end
74
75Year: 2002
76- if user goes root with 'su' instead of 'su -' then
77  workaround it by setting PATH correctly
78- wipe mondoarchive.log at very beginning
79- cleaned up code
80- if changed.files.N exists then copy to changes.files for display
81- run_program_and_log_output() now takes boolean operator to specify
82  whether it will log its activities in the event of _success_
83- added popup list of changed files
84- removed 'beta-quality' warnings
85- if kernel not found and mondo in graphics mode then popup and ask
86  for kernel path+filename
87- fixed tmp[] 'too small' bug
88- unmount and eject CD at end of verify cycle
89- moved interactively_obtain...() to libmondo-stream.c
90- wrote stuff to autodetect tape+cdrw+etc.
91- renamed from main.c to mondo-archive.c
92- fore+after warnings that this code is beta-quality
93- abort if running from ramdisk
94- remount floppy at end & unmount at start if Mandrake
95- took out #debug stuff
96- add 2> /dev/null to 'find' command
97- add support for bkpinfo->nonbootable_backup
98- add main function begin comment and debug conditional
99  compilation - Stan Benoit
100- add debug statements to build a run tree. Stan Benoit
101**** end change log **********/
102
103
104/**
105 * @file
106 * The main file for mondoarchive.
107 */
108
109/************************* #include statements *************************/
110#include <pthread.h>
111//#include <config.h>
112//#include "../../config.h"
113#include <stdio.h>
114#include <stdlib.h>
115#include "../common/my-stuff.h"
116#include "../common/mondostructures.h"
117#include "../common/libmondo.h"
118#include "mondo-cli-EXT.h"
119
120// for CVS
121//static char cvsid[] = "$Id: main.c 945 2006-11-18 00:35:29Z bruno $";
122
123/************************* external variables *************************/
124extern void set_signals(int);
125extern int g_current_media_number;
126extern void register_pid(pid_t, char *);
127extern int g_currentY;
128extern bool g_text_mode;
129extern char *g_boot_mountpt;
130extern bool g_remount_cdrom_at_end, g_remount_floppy_at_end;
131extern char *g_mondo_home;
132extern char *g_tmpfs_mountpt;
133extern char *g_erase_tmpdir_and_scratchdir;
134extern char *g_cdrw_drive_is_here;
135static char *g_cdrom_drive_is_here = NULL;
136static char *g_dvd_drive_is_here = NULL;
137extern double g_kernel_version;
138
139/***************** global vars, used only by main.c ******************/
140bool g_skip_floppies;
141long diffs;
142char *ps_options = "auxww";
143char *ps_proc_id = "$2";
144char *g_getfacl = NULL;
145char *g_getfattr = NULL;
146
147extern t_bkptype g_backup_media_type;
148extern int g_loglevel;
149
150/****************** subroutines used only by main.c ******************/
151
152
153/**
154 * Print a "don't panic" message to the log and a message about the logfile to the screen.
155 */
156void welcome_to_mondoarchive()
157{
158    log_msg(0, "Mondo Archive v%s --- http://www.mondorescue.org",
159            PACKAGE_VERSION);
160    log_msg(0, "running on %s architecture", get_architecture());
161    log_msg(0,
162            "-----------------------------------------------------------");
163    log_msg(0,
164            "NB: Mondo logs almost everything, so don't panic if you see");
165    log_msg(0,
166            "some error messages.  Please read them carefully before you");
167    log_msg(0,
168            "decide to break out in a cold sweat.    Despite (or perhaps");
169    log_msg(0,
170            "because of) the wealth of messages. some users are inclined");
171    log_msg(0,
172            "to stop reading this log. If Mondo stopped for some reason,");
173    log_msg(0,
174            "chances are it's detailed here.  More than likely there's a");
175    log_msg(0,
176            "message at the very end of this log that will tell you what");
177    log_msg(0,
178            "is wrong. Please read it!                          -Devteam");
179    log_msg(0,
180            "-----------------------------------------------------------");
181
182    log_msg(0, "Zero...");
183    log_msg(1, "One...");
184    log_msg(2, "Two...");
185    log_msg(3, "Three...");
186    log_msg(4, "Four...");
187    log_msg(5, "Five...");
188    log_msg(6, "Six...");
189    log_msg(7, "Seven...");
190    log_msg(8, "Eight...");
191    printf("See %s for details of backup run.\n", MONDO_LOGFILE);
192}
193
194
195extern char *g_magicdev_command;
196
197/**
198 * Do whatever is necessary to insure a successful backup on the Linux distribution
199 * of the day.
200 */
201void distro_specific_kludges_at_start_of_mondoarchive()
202{
203    log_msg(2, "Unmounting old ramdisks if necessary");
204    stop_magicdev_if_necessary();   // for RH+Gnome users
205    run_program_and_log_output
206        ("umount `mount | grep shm | grep mondo | cut -d' ' -f3`", 2);
207    unmount_supermounts_if_necessary(); // for Mandrake users whose CD-ROMs are supermounted
208    //  stop_autofs_if_necessary(); // for Xandros users
209    mount_boot_if_necessary();  // for Gentoo users with non-mounted /boot partitions
210    clean_up_KDE_desktop_if_necessary();    // delete various misc ~/.* files that get in the way
211}
212
213
214
215/**
216 * Undo whatever was done by distro_specific_kludges_at_start_of_mondoarchive().
217 */
218void distro_specific_kludges_at_end_of_mondoarchive()
219{
220//  char tmp[500];
221    log_msg(2, "Restarting magicdev if necessary");
222    sync();
223    restart_magicdev_if_necessary();    // for RH+Gnome users
224
225    log_msg(2, "Restarting autofs if necessary");
226    sync();
227    //  restart_autofs_if_necessary(); // for Xandros users
228
229    log_msg(2, "Restarting supermounts if necessary");
230    sync();
231    remount_supermounts_if_necessary(); // for Mandrake users
232
233    log_msg(2, "Unmounting /boot if necessary");
234    sync();
235    unmount_boot_if_necessary();    // for Gentoo users
236
237//  log_msg( 2, "Cleaning up KDE desktop");
238//  clean_up_KDE_desktop_if_necessary();
239}
240
241/* Return a string containing the date */
242char *mr_date(void) {
243   
244    time_t tcurr;
245
246    tcurr = time(NULL);
247    return(ctime(&tcurr));
248}
249
250/*-----------------------------------------------------------*/
251
252
253
254/**
255 * Backup/verify the user's data.
256 * What did you think it did, anyway? :-)
257 */
258int main(int argc, char *argv[])
259{
260    struct s_bkpinfo *bkpinfo;
261    char *tmp;
262    int res, retval;
263    char *say_at_end;
264
265/* Make sure I'm root; abort if not */
266    if (getuid() != 0) {
267        fprintf(stderr, "Please run as root.\r\n");
268        exit(127);
269    }
270
271/* If -V, -v or --version then echo version no. and quit */
272    if (argc == 2
273        && (!strcmp(argv[argc - 1], "-v") || !strcmp(argv[argc - 1], "-V")
274            || !strcmp(argv[argc - 1], "--version"))) {
275        printf("mondoarchive v%s\nSee man page for help\n", PACKAGE_VERSION);
276        exit(0);
277    }
278
279/* Initialize variables */
280
281    malloc_libmondo_global_strings();
282    malloc_string(tmp);
283    malloc_string(say_at_end);
284
285    res = 0;
286    retval = 0;
287    diffs = 0;
288    say_at_end[0] = '\0';
289    printf("Initializing...\n");
290    if (!(bkpinfo = malloc(sizeof(struct s_bkpinfo)))) {
291        fatal_error("Cannot malloc bkpinfo");
292    }
293
294    /* initialize log file with time stamp */
295    unlink(MONDO_LOGFILE);
296    log_msg(0, "Time started: %s", mr_date());
297
298    /* make sure PATH environmental variable allows access to mkfs, fdisk, etc. */
299    strncpy(tmp, getenv("PATH"), MAX_STR_LEN - 1);
300    tmp[MAX_STR_LEN - 1] = '\0';
301    if (strlen(tmp) >= MAX_STR_LEN - 33) {
302        fatal_error
303            ("Your PATH environmental variable is too long. Please shorten it.");
304    }
305    strcat(tmp, ":/sbin:/usr/sbin:/usr/local/sbin");
306    setenv("PATH", tmp, 1);
307
308    /* Add the ARCH environment variable for ia64 purposes */
309    strncpy(tmp, get_architecture(), MAX_STR_LEN - 1);
310    tmp[MAX_STR_LEN - 1] = '\0';
311    setenv("ARCH", tmp, 1);
312
313    /* Add MONDO_SHARE environment variable for mindi */
314    setenv_mondo_share();
315
316    /* Configure the bkpinfo structure, global file paths, etc. */
317    g_main_pid = getpid();
318    log_msg(9, "This");
319
320    register_pid(g_main_pid, "mondo");
321    set_signals(TRUE);          // catch SIGTERM, etc.
322    run_program_and_log_output("dmesg -n1", TRUE);
323
324    log_msg(9, "Next");
325    welcome_to_mondoarchive();
326    distro_specific_kludges_at_start_of_mondoarchive();
327    sprintf(g_erase_tmpdir_and_scratchdir, "rm -Rf %s %s", bkpinfo->tmpdir,
328            bkpinfo->scratchdir);
329    g_kernel_version = get_kernel_version();
330
331    if (argc == 4 && !strcmp(argv[1], "getfattr")) {
332        g_loglevel = 10;
333        g_text_mode = TRUE;
334        setup_newt_stuff();
335        if (!strstr(argv[2], "filelist")) {
336            printf("Sorry - filelist goes first\n");
337            finish(1);
338        } else {
339            finish(get_fattr_list(argv[2], argv[3]));
340        }
341        finish(0);
342    }
343    if (argc == 4 && !strcmp(argv[1], "setfattr")) {
344        g_loglevel = 10;
345//      chdir("/tmp");
346        g_text_mode = TRUE;
347        setup_newt_stuff();
348        finish(set_fattr_list(argv[2], argv[3]));
349    }
350
351    if (argc == 3 && !strcmp(argv[1], "wildcards")) {
352        g_loglevel = 10;
353        g_text_mode = TRUE;
354        setup_newt_stuff();
355        turn_wildcard_chars_into_literal_chars(tmp, argv[2]);
356        printf("in=%s; out=%s\n", argv[2], tmp);
357        finish(1);
358    }
359
360    if (argc == 4 && !strcmp(argv[1], "getfacl")) {
361        g_loglevel = 10;
362        g_text_mode = TRUE;
363        setup_newt_stuff();
364        if (!strstr(argv[2], "filelist")) {
365            printf("Sorry - filelist goes first\n");
366            finish(1);
367        } else {
368            finish(get_acl_list(argv[2], argv[3]));
369        }
370        finish(0);
371    }
372    if (argc == 4 && !strcmp(argv[1], "setfacl")) {
373        g_loglevel = 10;
374//      chdir("/tmp");
375        g_text_mode = TRUE;
376        setup_newt_stuff();
377        finish(set_acl_list(argv[2], argv[3]));
378    }
379
380    if (argc > 2 && !strcmp(argv[1], "find-cd")) {
381        g_loglevel = 10;
382        g_text_mode = TRUE;
383        setup_newt_stuff();
384        if (find_cdrw_device(tmp)) {
385            printf("Failed to find CDR-RW drive\n");
386        } else {
387            printf("CD-RW is at %s\n", tmp);
388        }
389        tmp[0] = '\0';
390        if (find_cdrom_device(tmp, atoi(argv[2]))) {
391            printf("Failed to find CD-ROM drive\n");
392        } else {
393            printf("CD-ROM is at %s\n", tmp);
394        }
395        finish(0);
396    }
397
398    if (argc > 2 && !strcmp(argv[1], "find-dvd")) {
399        g_loglevel = 10;
400        g_text_mode = TRUE;
401        setup_newt_stuff();
402        if (find_dvd_device(tmp, atoi(argv[2]))) {
403            printf("Failed to find DVD drive\n");
404        } else {
405            printf("DVD is at %s\n", tmp);
406        }
407        finish(0);
408    }
409
410    if (argc > 2 && !strcmp(argv[1], "disksize")) {
411        printf("%s --> %ld\n", argv[2], get_phys_size_of_drive(argv[2]));
412        finish(0);
413    }
414    if (argc > 2 && !strcmp(argv[1], "test-dev")) {
415        if (is_dev_an_NTFS_dev(argv[2])) {
416            printf("%s is indeed an NTFS dev\n", argv[2]);
417        } else {
418            printf("%s is _not_ an NTFS dev\n", argv[2]);
419        }
420        finish(0);
421    }
422
423    if (pre_param_configuration(bkpinfo)) {
424        fatal_error
425            ("Pre-param initialization phase failed. Please review the error messages above, make the specified changes, then try again. Exiting...");
426    }
427
428/* Process command line, if there is one. If not, ask user for info. */
429    if (argc == 1) {
430        g_text_mode = FALSE;
431        setup_newt_stuff();
432        res = interactively_obtain_media_parameters_from_user(bkpinfo, TRUE);   /* yes, archiving */
433        if (res) {
434            fatal_error
435                ("Syntax error. Please review the parameters you have supplied and try again.");
436        }
437    } else {
438        res = handle_incoming_parameters(argc, argv, bkpinfo);
439        if (res) {
440            printf
441                ("Errors were detected in the command line you supplied.\n");
442            printf("Please review the log file - " MONDO_LOGFILE "\n");
443            log_msg(1, "Mondoarchive will now exit.");
444            finish(1);
445        }
446        setup_newt_stuff();
447    }
448
449/* Finish configuring global structures */
450    if (post_param_configuration(bkpinfo)) {
451        fatal_error
452            ("Post-param initialization phase failed. Perhaps bad parameters were supplied to mondoarchive? Please review the documentation, error messages and logs. Exiting...");
453    }
454
455    log_to_screen
456        ("BusyBox's sources are available from http://www.busybox.net");
457    sprintf(g_erase_tmpdir_and_scratchdir, "rm -Rf %s %s", bkpinfo->tmpdir,
458            bkpinfo->scratchdir);
459
460    if (find_home_of_exe("getfacl")) {
461        asprintf(&g_getfacl,"getfacl");
462    }
463    if (find_home_of_exe("getfattr")) {
464        asprintf(&g_getfattr,"getfattr");
465    }
466
467    /* If we're meant to backup then backup */
468    if (bkpinfo->backup_data) {
469        res = backup_data(bkpinfo);
470        retval += res;
471        if (res) {
472            strcat(say_at_end,
473                   "Data archived. Please check the logs, just as a precaution. ");
474        } else {
475            strcat(say_at_end, "Data archived OK. ");
476        }
477    }
478
479/* If we're meant to verify then verify */
480    if (bkpinfo->verify_data) {
481        res = verify_data(bkpinfo);
482        if (res < 0) {
483            sprintf(tmp, "%d difference%c found.", -res,
484                    (-res != 1) ? 's' : ' ');
485            strcat(say_at_end, tmp);
486            log_to_screen(tmp);
487            res = 0;
488        }
489        retval += res;
490    }
491
492/* Offer to write floppy disk images to physical disks */
493    if (bkpinfo->backup_data && !g_skip_floppies) {
494        res = offer_to_write_boot_floppies_to_physical_disks(bkpinfo);
495        retval += res;
496//      res = offer_to_write_boot_ISO_to_physical_CD(bkpinfo);
497//      retval += res;
498    }
499
500/* Report result of entire operation (success? errors?) */
501    if (!retval) {
502        mvaddstr_and_log_it(g_currentY++, 0,
503                            "Backup and/or verify ran to completion. Everything appears to be fine.");
504    } else {
505        mvaddstr_and_log_it(g_currentY++, 0,
506                            "Backup and/or verify ran to completion. However, errors did occur.");
507    }
508
509    if (does_file_exist("/root/images/mindi/mondorescue.iso")) {
510        log_to_screen
511            ("/root/images/mindi/mondorescue.iso, a boot/utility CD, is available if you want it.");
512    }
513
514
515    if (length_of_file("/tmp/changed.files") > 2) {
516        if (g_text_mode) {
517            log_to_screen
518                ("Type 'less /tmp/changed.files' to see which files don't match the archives");
519        } else {
520            log_msg(1,
521                    "Type 'less /tmp/changed.files' to see which files don't match the archives");
522            log_msg(2, "Calling popup_changelist_from_file()");
523            popup_changelist_from_file("/tmp/changed.files");
524            log_msg(2, "Returned from popup_changelist_from_file()");
525        }
526    } else {
527        unlink("/tmp/changed.files");
528    }
529    log_to_screen(say_at_end);
530    sprintf(tmp, "umount %s/tmpfs", bkpinfo->tmpdir);
531    run_program_and_log_output(tmp, TRUE);
532    run_program_and_log_output(g_erase_tmpdir_and_scratchdir, TRUE);
533
534    run_program_and_log_output("mount", 2);
535
536    system("rm -f /var/cache/mondo-archive/last-backup.aborted");
537    system("rm -Rf /tmp.mondo.* /mondo.scratch.*");
538    if (!retval) {
539        printf("Mondoarchive ran OK.\n");
540    } else {
541        printf("Errors occurred during backup. Please check logfile.\n");
542    }
543    distro_specific_kludges_at_end_of_mondoarchive();
544    register_pid(0, "mondo");
545    set_signals(FALSE);
546    chdir("/tmp");              // just in case there's something wrong with g_erase_tmpdir_and_scratchdir
547    system(g_erase_tmpdir_and_scratchdir);
548    free_libmondo_global_strings();
549    paranoid_free(say_at_end);
550    paranoid_free(tmp);
551    paranoid_free(bkpinfo);
552
553    unlink("/tmp/filelist.full");
554    unlink("/tmp/filelist.full.gz");
555
556    if (!g_cdrom_drive_is_here) {
557        log_msg(10, "FYI, g_cdrom_drive_is_here was never used");
558    }
559    if (!g_dvd_drive_is_here) {
560        log_msg(10, "FYI, g_dvd_drive_is_here was never used");
561    }
562
563    /* finalize log file with time stamp */
564    log_msg(0, "Time finished: %s", mr_date());
565
566    if (!g_text_mode) {
567        popup_and_OK
568            ("Mondo Archive has finished its run. Please press ENTER to return to the shell prompt.");
569        log_to_screen("See %s for details of backup run.", MONDO_LOGFILE);
570        finish(retval);
571    } else {
572        printf("See %s for details of backup run.\n", MONDO_LOGFILE);
573        exit(retval);
574    }
575
576    return EXIT_SUCCESS;
577}
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