source: branches/stable/mondo/src/mondoarchive/main.c @ 1067

Last change on this file since 1067 was 1067, checked in by bruno, 13 years ago

my-stuff.h is referred to in include now

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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 1067 2007-01-23 07:25:12Z 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 "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 1067 2007-01-23 07:25:12Z 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";
144
145extern t_bkptype g_backup_media_type;
146extern int g_loglevel;
147
148/****************** subroutines used only by main.c ******************/
149
150
151/**
152 * Print a "don't panic" message to the log and a message about the logfile to the screen.
153 */
154void welcome_to_mondoarchive()
155{
156    log_msg(0, "Mondo Archive v%s --- http://www.mondorescue.org",
157            PACKAGE_VERSION);
158    log_msg(0, "running on %s architecture", get_architecture());
159    log_msg(0,
160            "-----------------------------------------------------------");
161    log_msg(0,
162            "NB: Mondo logs almost everything, so don't panic if you see");
163    log_msg(0,
164            "some error messages.  Please read them carefully before you");
165    log_msg(0,
166            "decide to break out in a cold sweat.    Despite (or perhaps");
167    log_msg(0,
168            "because of) the wealth of messages. some users are inclined");
169    log_msg(0,
170            "to stop reading this log. If Mondo stopped for some reason,");
171    log_msg(0,
172            "chances are it's detailed here.  More than likely there's a");
173    log_msg(0,
174            "message at the very end of this log that will tell you what");
175    log_msg(0,
176            "is wrong. Please read it!                          -Devteam");
177    log_msg(0,
178            "-----------------------------------------------------------");
179
180    log_msg(0, "Zero...");
181    log_msg(1, "One...");
182    log_msg(2, "Two...");
183    log_msg(3, "Three...");
184    log_msg(4, "Four...");
185    log_msg(5, "Five...");
186    log_msg(6, "Six...");
187    log_msg(7, "Seven...");
188    log_msg(8, "Eight...");
189    printf("See %s for details of backup run.\n", MONDO_LOGFILE);
190}
191
192
193extern char *g_magicdev_command;
194
195/**
196 * Do whatever is necessary to insure a successful backup on the Linux distribution
197 * of the day.
198 */
199void distro_specific_kludges_at_start_of_mondoarchive()
200{
201    log_msg(2, "Unmounting old ramdisks if necessary");
202    stop_magicdev_if_necessary();   // for RH+Gnome users
203    run_program_and_log_output
204        ("umount `mount | grep shm | grep mondo | cut -d' ' -f3`", 2);
205    unmount_supermounts_if_necessary(); // for Mandrake users whose CD-ROMs are supermounted
206    //  stop_autofs_if_necessary(); // for Xandros users
207    mount_boot_if_necessary();  // for Gentoo users with non-mounted /boot partitions
208    clean_up_KDE_desktop_if_necessary();    // delete various misc ~/.* files that get in the way
209}
210
211
212
213/**
214 * Undo whatever was done by distro_specific_kludges_at_start_of_mondoarchive().
215 */
216void distro_specific_kludges_at_end_of_mondoarchive()
217{
218//  char tmp[500];
219    log_msg(2, "Restarting magicdev if necessary");
220    sync();
221    restart_magicdev_if_necessary();    // for RH+Gnome users
222
223    log_msg(2, "Restarting autofs if necessary");
224    sync();
225    //  restart_autofs_if_necessary(); // for Xandros users
226
227    log_msg(2, "Restarting supermounts if necessary");
228    sync();
229    remount_supermounts_if_necessary(); // for Mandrake users
230
231    log_msg(2, "Unmounting /boot if necessary");
232    sync();
233    unmount_boot_if_necessary();    // for Gentoo users
234
235//  log_msg( 2, "Cleaning up KDE desktop");
236//  clean_up_KDE_desktop_if_necessary();
237}
238
239/* Return a string containing the date */
240char *mr_date(void) {
241   
242    time_t tcurr;
243
244    tcurr = time(NULL);
245    return(ctime(&tcurr));
246}
247
248/*-----------------------------------------------------------*/
249
250
251
252/**
253 * Backup/verify the user's data.
254 * What did you think it did, anyway? :-)
255 */
256int main(int argc, char *argv[])
257{
258    struct s_bkpinfo *bkpinfo;
259    char *tmp;
260    int res, retval;
261    char *say_at_end;
262
263/* Make sure I'm root; abort if not */
264    if (getuid() != 0) {
265        fprintf(stderr, "Please run as root.\r\n");
266        exit(127);
267    }
268
269/* If -V, -v or --version then echo version no. and quit */
270    if (argc == 2
271        && (!strcmp(argv[argc - 1], "-v") || !strcmp(argv[argc - 1], "-V")
272            || !strcmp(argv[argc - 1], "--version"))) {
273        printf("mondoarchive v%s\nSee man page for help\n", PACKAGE_VERSION);
274        exit(0);
275    }
276
277/* Initialize variables */
278
279    malloc_libmondo_global_strings();
280    malloc_string(tmp);
281    malloc_string(say_at_end);
282
283    res = 0;
284    retval = 0;
285    diffs = 0;
286    say_at_end[0] = '\0';
287    printf("Initializing...\n");
288    if (!(bkpinfo = malloc(sizeof(struct s_bkpinfo)))) {
289        fatal_error("Cannot malloc bkpinfo");
290    }
291
292    /* initialize log file with time stamp */
293    unlink(MONDO_LOGFILE);
294    log_msg(0, "Time started: %s", mr_date());
295
296    /* make sure PATH environmental variable allows access to mkfs, fdisk, etc. */
297    strncpy(tmp, getenv("PATH"), MAX_STR_LEN - 1);
298    tmp[MAX_STR_LEN - 1] = '\0';
299    if (strlen(tmp) >= MAX_STR_LEN - 33) {
300        fatal_error
301            ("Your PATH environmental variable is too long. Please shorten it.");
302    }
303    strcat(tmp, ":/sbin:/usr/sbin:/usr/local/sbin");
304    setenv("PATH", tmp, 1);
305
306    /* Add the ARCH environment variable for ia64 purposes */
307    strncpy(tmp, get_architecture(), MAX_STR_LEN - 1);
308    tmp[MAX_STR_LEN - 1] = '\0';
309    setenv("ARCH", tmp, 1);
310
311    /* Add MONDO_SHARE environment variable for mindi */
312    setenv_mondo_share();
313
314    /* Configure the bkpinfo structure, global file paths, etc. */
315    g_main_pid = getpid();
316    log_msg(9, "This");
317
318    register_pid(g_main_pid, "mondo");
319    set_signals(TRUE);          // catch SIGTERM, etc.
320    run_program_and_log_output("dmesg -n1", TRUE);
321
322    log_msg(9, "Next");
323    welcome_to_mondoarchive();
324    distro_specific_kludges_at_start_of_mondoarchive();
325    sprintf(g_erase_tmpdir_and_scratchdir, "rm -Rf %s %s", bkpinfo->tmpdir,
326            bkpinfo->scratchdir);
327    g_kernel_version = get_kernel_version();
328
329    if (argc == 4 && !strcmp(argv[1], "getfattr")) {
330        g_loglevel = 10;
331        g_text_mode = TRUE;
332        setup_newt_stuff();
333        if (!strstr(argv[2], "filelist")) {
334            printf("Sorry - filelist goes first\n");
335            finish(1);
336        } else {
337            finish(get_fattr_list(argv[2], argv[3]));
338        }
339        finish(0);
340    }
341    if (argc == 4 && !strcmp(argv[1], "setfattr")) {
342        g_loglevel = 10;
343//      chdir("/tmp");
344        g_text_mode = TRUE;
345        setup_newt_stuff();
346        finish(set_fattr_list(argv[2], argv[3]));
347    }
348
349    if (argc == 3 && !strcmp(argv[1], "wildcards")) {
350        g_loglevel = 10;
351        g_text_mode = TRUE;
352        setup_newt_stuff();
353        turn_wildcard_chars_into_literal_chars(tmp, argv[2]);
354        printf("in=%s; out=%s\n", argv[2], tmp);
355        finish(1);
356    }
357
358    if (argc == 4 && !strcmp(argv[1], "getfacl")) {
359        g_loglevel = 10;
360        g_text_mode = TRUE;
361        setup_newt_stuff();
362        if (!strstr(argv[2], "filelist")) {
363            printf("Sorry - filelist goes first\n");
364            finish(1);
365        } else {
366            finish(get_acl_list(argv[2], argv[3]));
367        }
368        finish(0);
369    }
370    if (argc == 4 && !strcmp(argv[1], "setfacl")) {
371        g_loglevel = 10;
372//      chdir("/tmp");
373        g_text_mode = TRUE;
374        setup_newt_stuff();
375        finish(set_acl_list(argv[2], argv[3]));
376    }
377
378    if (argc > 2 && !strcmp(argv[1], "find-cd")) {
379        g_loglevel = 10;
380        g_text_mode = TRUE;
381        setup_newt_stuff();
382        if (find_cdrw_device(tmp)) {
383            printf("Failed to find CDR-RW drive\n");
384        } else {
385            printf("CD-RW is at %s\n", tmp);
386        }
387        tmp[0] = '\0';
388        if (find_cdrom_device(tmp, atoi(argv[2]))) {
389            printf("Failed to find CD-ROM drive\n");
390        } else {
391            printf("CD-ROM is at %s\n", tmp);
392        }
393        finish(0);
394    }
395
396    if (argc > 2 && !strcmp(argv[1], "find-dvd")) {
397        g_loglevel = 10;
398        g_text_mode = TRUE;
399        setup_newt_stuff();
400        if (find_dvd_device(tmp, atoi(argv[2]))) {
401            printf("Failed to find DVD drive\n");
402        } else {
403            printf("DVD is at %s\n", tmp);
404        }
405        finish(0);
406    }
407
408    if (argc > 2 && !strcmp(argv[1], "disksize")) {
409        printf("%s --> %ld\n", argv[2], get_phys_size_of_drive(argv[2]));
410        finish(0);
411    }
412    if (argc > 2 && !strcmp(argv[1], "test-dev")) {
413        if (is_dev_an_NTFS_dev(argv[2])) {
414            printf("%s is indeed an NTFS dev\n", argv[2]);
415        } else {
416            printf("%s is _not_ an NTFS dev\n", argv[2]);
417        }
418        finish(0);
419    }
420
421    if (pre_param_configuration(bkpinfo)) {
422        fatal_error
423            ("Pre-param initialization phase failed. Please review the error messages above, make the specified changes, then try again. Exiting...");
424    }
425
426/* Process command line, if there is one. If not, ask user for info. */
427    if (argc == 1) {
428        g_text_mode = FALSE;
429        setup_newt_stuff();
430        res = interactively_obtain_media_parameters_from_user(bkpinfo, TRUE);   /* yes, archiving */
431        if (res) {
432            fatal_error
433                ("Syntax error. Please review the parameters you have supplied and try again.");
434        }
435    } else {
436        res = handle_incoming_parameters(argc, argv, bkpinfo);
437        if (res) {
438            printf
439                ("Errors were detected in the command line you supplied.\n");
440            printf("Please review the log file - " MONDO_LOGFILE "\n");
441            log_msg(1, "Mondoarchive will now exit.");
442            finish(1);
443        }
444        setup_newt_stuff();
445    }
446
447/* Finish configuring global structures */
448    if (post_param_configuration(bkpinfo)) {
449        fatal_error
450            ("Post-param initialization phase failed. Perhaps bad parameters were supplied to mondoarchive? Please review the documentation, error messages and logs. Exiting...");
451    }
452
453    log_to_screen
454        ("BusyBox's sources are available from http://www.busybox.net");
455    sprintf(g_erase_tmpdir_and_scratchdir, "rm -Rf %s %s", bkpinfo->tmpdir,
456            bkpinfo->scratchdir);
457
458    /* If we're meant to backup then backup */
459    if (bkpinfo->backup_data) {
460        res = backup_data(bkpinfo);
461        retval += res;
462        if (res) {
463            strcat(say_at_end,
464                   "Data archived. Please check the logs, just as a precaution. ");
465        } else {
466            strcat(say_at_end, "Data archived OK. ");
467        }
468    }
469
470/* If we're meant to verify then verify */
471    if (bkpinfo->verify_data) {
472        res = verify_data(bkpinfo);
473        if (res < 0) {
474            sprintf(tmp, "%d difference%c found.", -res,
475                    (-res != 1) ? 's' : ' ');
476            strcat(say_at_end, tmp);
477            log_to_screen(tmp);
478            res = 0;
479        }
480        retval += res;
481    }
482
483/* Offer to write floppy disk images to physical disks */
484    if (bkpinfo->backup_data && !g_skip_floppies) {
485        res = offer_to_write_boot_floppies_to_physical_disks(bkpinfo);
486        retval += res;
487//      res = offer_to_write_boot_ISO_to_physical_CD(bkpinfo);
488//      retval += res;
489    }
490
491/* Report result of entire operation (success? errors?) */
492    if (!retval) {
493        mvaddstr_and_log_it(g_currentY++, 0,
494                            "Backup and/or verify ran to completion. Everything appears to be fine.");
495    } else {
496        mvaddstr_and_log_it(g_currentY++, 0,
497                            "Backup and/or verify ran to completion. However, errors did occur.");
498    }
499
500    if (does_file_exist("/var/cache/mindi/mondorescue.iso")) {
501        log_to_screen
502            ("/var/cache/mindi/mondorescue.iso, a boot/utility CD, is available if you want it.");
503    }
504
505
506    if (length_of_file("/tmp/changed.files") > 2) {
507        if (g_text_mode) {
508            log_to_screen
509                ("Type 'less /tmp/changed.files' to see which files don't match the archives");
510        } else {
511            log_msg(1,
512                    "Type 'less /tmp/changed.files' to see which files don't match the archives");
513            log_msg(2, "Calling popup_changelist_from_file()");
514            popup_changelist_from_file("/tmp/changed.files");
515            log_msg(2, "Returned from popup_changelist_from_file()");
516        }
517    } else {
518        unlink("/tmp/changed.files");
519    }
520    log_to_screen(say_at_end);
521    sprintf(tmp, "umount %s/tmpfs", bkpinfo->tmpdir);
522    run_program_and_log_output(tmp, TRUE);
523    run_program_and_log_output(g_erase_tmpdir_and_scratchdir, TRUE);
524
525    run_program_and_log_output("mount", 2);
526
527    system("rm -f /var/cache/mondo-archive/last-backup.aborted");
528    system("rm -Rf /tmp.mondo.* /mondo.scratch.*");
529    if (!retval) {
530        printf("Mondoarchive ran OK.\n");
531    } else {
532        printf("Errors occurred during backup. Please check logfile.\n");
533    }
534    distro_specific_kludges_at_end_of_mondoarchive();
535    register_pid(0, "mondo");
536    set_signals(FALSE);
537    chdir("/tmp");              // just in case there's something wrong with g_erase_tmpdir_and_scratchdir
538    system(g_erase_tmpdir_and_scratchdir);
539    free_libmondo_global_strings();
540    paranoid_free(say_at_end);
541    paranoid_free(tmp);
542    paranoid_free(bkpinfo);
543
544    unlink("/tmp/filelist.full");
545    unlink("/tmp/filelist.full.gz");
546
547    if (!g_cdrom_drive_is_here) {
548        log_msg(10, "FYI, g_cdrom_drive_is_here was never used");
549    }
550    if (!g_dvd_drive_is_here) {
551        log_msg(10, "FYI, g_dvd_drive_is_here was never used");
552    }
553
554    /* finalize log file with time stamp */
555    log_msg(0, "Time finished: %s", mr_date());
556
557    if (!g_text_mode) {
558        popup_and_OK
559            ("Mondo Archive has finished its run. Please press ENTER to return to the shell prompt.");
560        log_to_screen("See %s for details of backup run.", MONDO_LOGFILE);
561        finish(retval);
562    } else {
563        printf("See %s for details of backup run.\n", MONDO_LOGFILE);
564        exit(retval);
565    }
566
567    return EXIT_SUCCESS;
568}
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