source: MondoRescue/branches/3.1/mondo/src/mondoarchive/mondoarchive.c

/***************************************************************************
$Id: mondoarchive.c 3193 2013-09-29 07:31:34Z bruno $
* The main file for mondoarchive.
*/

/************************* #include statements *************************/
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include "my-stuff.h"
#include "mr_mem.h"
#include "mr_str.h"
#include "../common/mondostructures.h"
#include "../common/libmondo.h"
#include "../common/libmondo-cli-EXT.h"
#include "../common/libmondo-tools-EXT.h"
#include "mondoarchive.h"

// for CVS
//static char cvsid[] = "$Id: mondoarchive.c 3193 2013-09-29 07:31:34Z bruno $";

/************************* external variables *************************/
extern void set_signals(int);
extern int g_current_media_number;
extern int g_currentY;
extern bool g_text_mode;
extern char *g_boot_mountpt;
extern bool g_remount_floppy_at_end;
extern char *g_cdrw_drive_is_here;
static char *g_cdrom_drive_is_here = NULL;
static char *g_dvd_drive_is_here = NULL;
extern double g_kernel_version;

/***************** global vars, used only by main.c ******************/
long diffs = 0L;

extern t_bkptype g_backup_media_type;
extern int g_loglevel;

extern char *g_magicdev_command;

/**
 * Whether we're restoring from ISOs. Obviously not, since this is the
 * backup program.
 * @note You @b MUST declare this variable somewhere in your program if
 * you use libmondo. Otherwise the link will fail.
 * @ingroup globalGroup
 */
bool g_ISO_restore_mode = FALSE;

/* Whether we should fail immediately at first error */
bool g_fail_immediately = FALSE;

/* Do we use extended attributes and acl ?
 *  * By default no, use --acl & --attr options to force their usage */
char *g_getfacl = NULL;
char *g_getfattr = NULL;

/* Reference to global bkpinfo */
struct s_bkpinfo *bkpinfo;

/*  Make cleanup the finish function */
void (*mr_cleanup)(int) = finish;

/* To be coded */
void free_MR_global_filenames(void) {
}

/****************** subroutines used only by main.c ******************/


/**
 * Print a "don't panic" message to the log and a message about the logfile to the screen.
 */
void welcome_to_mondoarchive(void)
{
    char *tmp = NULL;

    log_msg(0, "Mondo Archive v%s --- http://www.mondorescue.org", PACKAGE_VERSION);
    log_msg(0, "running %s binaries", get_architecture());
    tmp = get_uname_m();
    log_msg(0, "running on %s architecture", tmp);
    mr_free(tmp);
    log_msg(0, "-----------------------------------------------------------");
    log_msg(0, "NB: Mondo logs almost everything, so don't panic if you see");
    log_msg(0, "some error messages.  Please read them carefully before you");
    log_msg(0, "decide to break out in a cold sweat.    Despite (or perhaps");
    log_msg(0, "because of) the wealth of messages. some users are inclined");
    log_msg(0, "to stop reading this log. If Mondo stopped for some reason,");
    log_msg(0, "chances are it's detailed here.  More than likely there's a");
    log_msg(0, "message at the very end of this log that will tell you what");
    log_msg(0, "is wrong. Please read it!                          -Devteam");
    log_msg(0, "-----------------------------------------------------------");

    log_msg(0, "Zero...");
    log_msg(1, "One...");
    log_msg(2, "Two...");
    log_msg(3, "Three...");
    log_msg(4, "Four...");
    log_msg(5, "Five...");
    log_msg(6, "Six...");
    log_msg(7, "Seven...");
    log_msg(8, "Eight...");
    printf("See %s for details of backup run.\n", MONDO_LOGFILE);
}


/**
 * Do whatever is necessary to insure a successful backup on the Linux distribution
 * of the day.
 */
void distro_specific_kludges_at_start_of_mondoarchive(void)
{
    log_msg(2, "Unmounting old ramdisks if necessary");
    stop_magicdev_if_necessary();   // for RH+Gnome users
    /*
    run_program_and_log_output
        ("umount `mount | grep shm | grep mondo | cut -d' ' -f3`", 2);
        */
    unmount_supermounts_if_necessary(); // for Mandrake users whose CD-ROMs are supermounted
    //  stop_autofs_if_necessary(); // for Xandros users
    mount_boot_if_necessary();  // for Gentoo users with non-mounted /boot partitions
    clean_up_KDE_desktop_if_necessary();    // delete various misc ~/.* files that get in the way
}



/**
 * Undo whatever was done by distro_specific_kludges_at_start_of_mondoarchive().
 */
void distro_specific_kludges_at_end_of_mondoarchive(void)
{
    log_msg(2, "Restarting magicdev if necessary");
    sync();
    restart_magicdev_if_necessary();    // for RH+Gnome users

    log_msg(2, "Restarting autofs if necessary");
    sync();
    //  restart_autofs_if_necessary(); // for Xandros users

    log_msg(2, "Restarting supermounts if necessary");
    sync();
    remount_supermounts_if_necessary(); // for Mandrake users

    log_msg(2, "Unmounting /boot if necessary");
    sync();
    unmount_boot_if_necessary();    // for Gentoo users

//  log_msg( 2, "Cleaning up KDE desktop");
//  clean_up_KDE_desktop_if_necessary();
}


/**
 * Backup/verify the user's data.
 * What did you think it did, anyway? :-)
 */
int main(int argc, char *argv[])
{
    char *tmp = NULL;
    char *tmp1 = NULL;
    int res = 0;
    int i = 0;
    int retval = 0;
    char *say_at_end = NULL;
    FILE *fin = NULL;

/* Make sure I'm root; abort if not */
    if (getuid() != 0) {
        fprintf(stderr, "Please run as root.\r\n");
        exit(127);
    }

/* If -V, -v or --version then echo version no. and quit */
    if (argc == 2 && (!strcmp(argv[argc - 1], "-v") || !strcmp(argv[argc - 1], "-V") || !strcmp(argv[argc - 1], "--version"))) {
        printf("mondoarchive v%s\nSee man page for help\n", PACKAGE_VERSION);
        exit(0);
    }

/* Initialize variables */

    printf("Initializing...\n");

    init_bkpinfo();

    /* Memory allocation is done in those functions */
    malloc_libmondo_global_strings();

    /* initialize log file with time stamp */
    unlink(MONDO_LOGFILE);
    log_msg(0, "Time started: %s", mr_date());

    if (argc == 1) {
        g_text_mode = FALSE;
    } else {
        g_text_mode = TRUE;
        /* newt mode if -g specified on cli */
        for (i = 0; i < argc; i++) {
            if (!strcmp(argv[i],"-g")) {
                g_text_mode = FALSE;
            }
        }
    }
    setup_newt_stuff();

    /* make sure PATH environmental variable allows access to mkfs, fdisk, etc. */
    mr_asprintf(tmp1,"%s:/sbin:/usr/sbin:/usr/local/sbin",getenv("PATH"));
    setenv("PATH", tmp1, 1);
    mr_free(tmp1);

    /* Add the ARCH environment variable for ia64 purposes */
    mr_asprintf(tmp1,"%s",get_architecture());
    setenv("ARCH", tmp1, 1);
    mr_free(tmp1);

    /* Add MONDO_SHARE environment variable for mindi */
    setenv_mondo_share();

    /* Configure the bkpinfo structure, global file paths, etc. */
    g_main_pid = getpid();
    log_msg(9, "This");

    set_signals(TRUE);          // catch SIGTERM, etc.
    run_program_and_log_output("dmesg -n1", TRUE);

    log_msg(9, "Next");
    make_hole_for_dir(MONDO_CACHE);

    welcome_to_mondoarchive();
    distro_specific_kludges_at_start_of_mondoarchive();
    g_kernel_version = get_kernel_version();

    if (argc == 4 && !strcmp(argv[1], "getfattr")) {
        g_loglevel = 10;
        if (!strstr(argv[2], "filelist")) {
            printf("Sorry - filelist goes first\n");
            finish(1);
        } else {
            finish(get_fattr_list(argv[2], argv[3]));
        }
        finish(0);
    }
    if (argc == 4 && !strcmp(argv[1], "setfattr")) {
        g_loglevel = 10;
        finish(set_fattr_list(argv[2], argv[3]));
    }

    if (argc == 3 && !strcmp(argv[1], "wildcards")) {
        g_loglevel = 10;
        tmp = mr_stresc(argv[2], "[]*?", '\\');
        printf("in=%s; out=%s\n", argv[2], tmp);
        mr_free(tmp);
        finish(1);
    }

    if (argc == 4 && !strcmp(argv[1], "getfacl")) {
        g_loglevel = 10;
        if (!strstr(argv[2], "filelist")) {
            printf("Sorry - filelist goes first\n");
            finish(1);
        } else {
            finish(get_acl_list(argv[2], argv[3]));
        }
        finish(0);
    }
    if (argc == 4 && !strcmp(argv[1], "setfacl")) {
        g_loglevel = 10;
        finish(set_acl_list(argv[2], argv[3]));
    }
    if (argc >= 2 && !strcmp(argv[1], "mkraidtab")) {
        g_loglevel = 10;
        g_text_mode = TRUE;
        setup_newt_stuff();
#undef MDSTAT_FILE
#define MDSTAT_FILE "/tmp/mdstat"
        if (!(fin = fopen(MDSTAT_FILE, "r"))) {
            log_msg(1, "Could not open %s.\n", MDSTAT_FILE);
                finish(1);
        }

        create_raidtab_from_mdstat(MDSTAT_FILE,"/tmp/raidtab");
        finish(0);
    }
    if (argc >= 2 && !strcmp(argv[1], "mkraidtab")) {
        g_loglevel = 10;
        g_text_mode = TRUE;
        setup_newt_stuff();
#undef MDSTAT_FILE
#define MDSTAT_FILE "/tmp/mdstat"
        if (!(fin = fopen(MDSTAT_FILE, "r"))) {
            log_msg(1, "Could not open %s.\n", MDSTAT_FILE);
                finish(1);
        }

        create_raidtab_from_mdstat(MDSTAT_FILE,"/tmp/raidtab");
        finish(0);
    }

    if (argc > 2 && !strcmp(argv[1], "find-cd")) {
        g_loglevel = 10;
        if ((tmp = find_cdrw_device()) == NULL) {
            printf("Failed to find CDR-RW drive\n");
        } else {
            printf("CD-RW is at %s\n", tmp);
        }
        mr_free(tmp);
        if ((tmp = find_cdrom_device(FALSE)) == NULL) {
            printf("Failed to find CD-ROM drive\n");
        } else {
            printf("CD-ROM is at %s\n", tmp);
        }
        mr_free(tmp);
        finish(0);
    }

    if (argc > 2 && !strcmp(argv[1], "find-dvd")) {
        g_loglevel = 10;
        if ((tmp = find_dvd_device()) == NULL) {
            printf("Failed to find DVD drive\n");
        } else {
            printf("DVD is at %s\n", tmp);
        }
        mr_free(tmp);
        finish(0);
    }

    if (argc > 2 && !strcmp(argv[1], "disksize")) {
        printf("%s --> %ld\n", argv[2], get_phys_size_of_drive(argv[2]));
        finish(0);
    }
    if (argc > 2 && !strcmp(argv[1], "test-dev")) {
        if (is_dev_an_NTFS_dev(argv[2])) {
            printf("%s is indeed an NTFS dev\n", argv[2]);
        } else {
            printf("%s is _not_ an NTFS dev\n", argv[2]);
        }
        finish(0);
    }

    if (pre_param_configuration()) {
        fatal_error("Pre-param initialization phase failed. Please review the error messages above, make the specified changes, then try again. Exiting...");
    }

    /* Process command line, if there is one. If not, ask user for info. */
    if (argc == 1) {
        res = interactively_obtain_media_parameters_from_user(TRUE);    /* yes, archiving */
        if (res) {
            fatal_error("Syntax error. Please review the parameters you have supplied and try again.");
        }
    } else {
        res = handle_incoming_parameters(argc, argv);
        if (res) {
            printf("Errors were detected in the command line you supplied.\n");
            printf("Please review the log file - %s\n", MONDO_LOGFILE );
            log_msg(1, "Mondoarchive will now exit.");
            finish(1);
        }
    }

/* Finish configuring global structures */
    if (post_param_configuration()) {
        fatal_error("Post-param initialization phase failed. Perhaps bad parameters were supplied to mondoarchive? Please review the documentation, error messages and logs. Exiting...");
    }

    /* If we're meant to backup then backup */
    if (bkpinfo->backup_data) {
        res = backup_data();
        retval += res;
        if (res) {
            mr_asprintf(say_at_end, "Data archived. Please check the logs, just as a precaution. ");
        } else {
            mr_asprintf(say_at_end, "Data archived OK. ");
        }
    }

/* If we're meant to verify then verify */
    if (bkpinfo->verify_data) {
        res = verify_data();
        if (res < 0) {
            mr_asprintf(tmp, "%d difference%c found.", -res, (-res != 1) ? 's' : ' ');
            mr_asprintf(say_at_end, "%s", tmp);
            log_to_screen(tmp);
            mr_free(tmp);
            res = 0;
        }
        retval += res;
    }

/* Report result of entire operation (success? errors?) */
    if (!retval) {
        mvaddstr_and_log_it(g_currentY++, 0,
                            "Backup and/or verify ran to completion. Everything appears to be fine.");
    } else {
        mvaddstr_and_log_it(g_currentY++, 0,
                            "Backup and/or verify ran to completion. However, errors did occur.");
    }

    if (does_file_exist(MINDI_CACHE"/mondorescue.iso")) {
        log_to_screen
            (MINDI_CACHE"/mondorescue.iso, a boot/utility CD, is available if you want it.");
    }

    if (length_of_file(MONDO_CACHE"/changed.files") > 2) {
        if (g_text_mode) {
            log_to_screen("Type 'less "MONDO_CACHE"/changed.files' to see which files don't match the archives");
        } else {
            log_msg(1, "Type 'less "MONDO_CACHE"/changed.files' to see which files don't match the archives");
            log_msg(2, "Calling popup_changelist_from_file()");
            popup_changelist_from_file(MONDO_CACHE"/changed.files");
            log_msg(2, "Returned from popup_changelist_from_file()");
        }
    } else {
        unlink(MONDO_CACHE"/changed.files");
    }
    if (say_at_end != NULL) {
        log_to_screen(say_at_end);
        mr_free(say_at_end);
    }
    mr_asprintf(tmp, "umount %s/tmpfs", bkpinfo->tmpdir);
    run_program_and_log_output(tmp, TRUE);
    mr_free(tmp);
    if (bkpinfo->backup_media_type == usb) {
        log_msg(1, "Unmounting USB device.");
        if (bkpinfo->media_device == NULL) {
            fatal_error("USB device set to NULL");
        }
        mr_asprintf(tmp, "umount %s1", bkpinfo->media_device);
        run_program_and_log_output(tmp, TRUE);
        mr_free(tmp);
    }

    run_program_and_log_output("mount", 2);

    paranoid_system("rm -f "MONDO_CACHE"/last-backup.aborted");
    if (!retval) {
        printf("Mondoarchive ran OK.\n");
    } else {
        printf("Errors occurred during backup. Please check logfile.\n");
    }
    distro_specific_kludges_at_end_of_mondoarchive();
    set_signals(FALSE);

    free_libmondo_global_strings();
    

    if (!g_cdrom_drive_is_here) {
        log_msg(10, "FYI, g_cdrom_drive_is_here was never used");
    }
    if (!g_dvd_drive_is_here) {
        log_msg(10, "FYI, g_dvd_drive_is_here was never used");
    }

    /* finalize log file with time stamp */
    log_msg(0, "Time finished: %s", mr_date());

    if (chdir("/tmp")) {
        // FIXME
    }

    if (!g_text_mode) {
        popup_and_OK("Mondo Archive has finished its run. Please press ENTER to return to the shell prompt.");
        log_to_screen("See %s for details of backup run.", MONDO_LOGFILE);
    } else {
        printf("See %s for details of backup run.\n", MONDO_LOGFILE);
    }
    finish(retval);

    return EXIT_SUCCESS;
}