source: MondoRescue/branches/2.2.10/mondo/src/common/libmondo-files.c @ 2338

Last change on this file since 2338 was 2338, checked in by Bruno Cornec, 11 years ago
  • Adds LZMA support (Fix #309)
  • Change
  • Property svn:keywords set to Id
File size: 36.2 KB
Line 
1/* file manipulation
2   $Id: libmondo-files.c 2338 2009-08-20 23:47:12Z bruno $
3*/
4
5/**
6 * @file
7 * Functions to manipulate files.
8 */
9
10
11#include "my-stuff.h"
12#include "mr_mem.h"
13#include "mondostructures.h"
14#include "libmondo-files.h"
15
16#include "lib-common-externs.h"
17
18#include "libmondo-tools-EXT.h"
19#include "libmondo-gui-EXT.h"
20#include "libmondo-devices-EXT.h"
21#include "libmondo-fork-EXT.h"
22#include "libmondo-string-EXT.h"
23
24/*@unused@*/
25//static char cvsid[] = "$Id: libmondo-files.c 2338 2009-08-20 23:47:12Z bruno $";
26
27extern char err_log_lines[NOOF_ERR_LINES][MAX_STR_LEN];
28
29extern int g_currentY;
30extern char *g_mondo_home;
31
32/* Reference to global bkpinfo */
33extern struct s_bkpinfo *bkpinfo;
34
35/**
36 * @addtogroup fileGroup
37 * @{
38 */
39/**
40 * Get an md5 checksum of the specified file.
41 * @param filename The file to checksum.
42 * @return The 32-character ASCII representation of the 128-bit checksum.
43 * @note The returned string points to static storage that will be overwritten with each call.
44 */
45char *calc_checksum_of_file(char *filename)
46{
47    /*@ buffers ***************************************************** */
48    static char output[MAX_STR_LEN];
49    char *command = NULL;
50
51    /*@ pointers **************************************************** */
52    char *p;
53    FILE *fin;
54
55    /*@ initialize pointers ***************************************** */
56
57    p = output;
58
59    /*@************************************************************** */
60
61    assert_string_is_neither_NULL_nor_zerolength(filename);
62    if (does_file_exist(filename)) {
63        mr_asprintf(command, "md5sum \"%s\"", filename);
64        fin = popen(command, "r");
65        if (fin) {
66            (void) fgets(output, MAX_STR_LEN, fin);
67            p = strchr(output, ' ');
68            paranoid_pclose(fin);
69        }
70        mr_free(command);
71    } else {
72        log_it("File '%s' not found; cannot calc checksum", filename);
73    }
74    if (p) {
75        *p = '\0';
76    }
77    return (output);
78}
79
80
81/**
82 * Get a not-quite-unique representation of some of the file's @c stat properties.
83 * The returned string has the form <tt>size-mtime-ctime</tt>.
84 * @param curr_fname The file to generate the "checksum" for.
85 * @return The "checksum".
86 * @note The returned string points to static storage that will be overwritten with each call.
87 */
88char *calc_file_ugly_minichecksum(char *curr_fname)
89{
90
91    /*@ buffers ***************************************************** */
92    static char curr_cksum[1000];
93
94    /*@ pointers **************************************************** */
95
96    /*@ structures ************************************************** */
97    struct stat buf;
98
99    /*@ initialize data *************************************************** */
100    curr_cksum[0] = '\0';
101
102    /*@************************************************************** */
103
104    assert_string_is_neither_NULL_nor_zerolength(curr_fname);
105    if (lstat(curr_fname, &buf)) {
106        return (curr_cksum);    // empty
107    }
108
109    sprintf(curr_cksum, "%ld-%ld-%ld", (long) (buf.st_size),
110            (long) (buf.st_mtime), (long) (buf.st_ctime));
111    return (curr_cksum);
112}
113
114
115
116/**
117 * Get the number of lines in @p filename.
118 * @param filename The file to count lines in.
119 * @return The number of lines in @p filename.
120 * @bug This function uses the shell and "wc -l"; it should probably be rewritten in C.
121 */
122long count_lines_in_file(char *filename)
123{
124
125    /*@ buffers ***************************************************** */
126    char *command = NULL;
127    char incoming[MAX_STR_LEN];
128
129    /*@ long ******************************************************** */
130    long noof_lines = -1L;
131
132    /*@ pointers **************************************************** */
133    FILE *fin;
134
135    /*@ initialize [0] to null ******************************************** */
136    incoming[0] = '\0';
137
138    assert_string_is_neither_NULL_nor_zerolength(filename);
139    if (!does_file_exist(filename)) {
140        log_it("%s does not exist, so I cannot found the number of lines in it", filename);
141        return (0);
142    }
143    mr_asprintf(command, "cat %s | wc -l", filename);
144    if (!does_file_exist(filename)) {
145        mr_free(command);
146        return (-1);
147    }
148    fin = popen(command, "r");
149    mr_free(command);
150    if (fin) {
151        if (feof(fin)) {
152            noof_lines = 0;
153        } else {
154            (void) fgets(incoming, MAX_STR_LEN - 1, fin);
155            while (strlen(incoming) > 0
156                   && incoming[strlen(incoming) - 1] < 32) {
157                incoming[strlen(incoming) - 1] = '\0';
158            }
159            noof_lines = atol(incoming);
160        }
161        paranoid_pclose(fin);
162    }
163    return (noof_lines);
164}
165
166
167/**
168 * Check for existence of given @p filename.
169 * @param filename The file to check for.
170 * @return TRUE if it exists, FALSE otherwise.
171 */
172bool does_file_exist(char *filename)
173{
174
175    /*@ structures ************************************************** */
176    struct stat buf;
177
178    /*@************************************************************** */
179
180    assert(filename != NULL);
181    //  assert_string_is_neither_NULL_nor_zerolength(filename);
182    if (lstat(filename, &buf)) {
183        log_msg(20, "%s does not exist", filename);
184        return (FALSE);
185    } else {
186        log_msg(20, "%s exists", filename);
187        return (TRUE);
188    }
189}
190
191
192
193
194
195
196/**
197 * Modify @p inout (a file containing a list of files) to only contain files
198 * that exist.
199 * @param inout The filelist to operate on.
200 * @note The original file is renamed beforehand, so it will not be accessible
201 * while the modification is in progress.
202 */
203void exclude_nonexistent_files(char *inout)
204{
205    char *infname = NULL;
206    char *outfname = NULL;
207    char *tmp = NULL;
208    char incoming[MAX_STR_LEN];
209
210    /*@ int ********************************************************* */
211    int i;
212
213    /*@ pointers **************************************************** */
214    FILE *fin, *fout;
215
216
217    /*@ end vars *********************************************************** */
218
219    assert_string_is_neither_NULL_nor_zerolength(inout);
220    mr_asprintf(infname, "%s.in", inout);
221    mr_asprintf(outfname, "%s", inout);
222    mr_asprintf(tmp, "cp -f %s %s", inout, infname);
223    run_program_and_log_output(tmp, FALSE);
224    mr_free(tmp);
225
226    if (!(fin = fopen(infname, "r"))) {
227        log_OS_error("Unable to openin infname");
228        mr_free(infname);
229        return;
230    }
231    if (!(fout = fopen(outfname, "w"))) {
232        log_OS_error("Unable to openout outfname");
233        mr_free(outfname);
234        return;
235    }
236    mr_free(outfname);
237
238    for (fgets(incoming, MAX_STR_LEN, fin); !feof(fin);
239         fgets(incoming, MAX_STR_LEN, fin)) {
240        i = strlen(incoming) - 1;
241        if (i >= 0 && incoming[i] < 32) {
242            incoming[i] = '\0';
243        }
244        if (does_file_exist(incoming)) {
245            fprintf(fout, "%s\n", incoming);
246        } else {
247            log_it("Excluding '%s'-nonexistent\n", incoming);
248        }
249    }
250    paranoid_fclose(fout);
251    paranoid_fclose(fin);
252    unlink(infname);
253    mr_free(infname);
254}
255
256
257
258
259
260
261
262
263
264/**
265 * Attempt to find the user's kernel by calling Mindi.
266 * If Mindi can't find the kernel, ask user. If @p kernel is not empty,
267 * don't do anything.
268 * @param kernel Where to put the found kernel.
269 * @return 0 for success, 1 for failure.
270 */
271char *figure_out_kernel_path_interactively_if_necessary(void) {
272
273    char *tmp = NULL;
274    char *command = NULL;;
275    char *kernel = NULL;;
276
277    mr_asprintf(kernel, "%s", call_program_and_get_last_line_of_output("mindi --findkernel 2> /dev/null"));
278   
279    // If we didn't get anything back, check whether mindi raised a fatal error
280    if (!kernel[0]) {
281        mr_asprintf(command, "%s", "grep 'Fatal error' /var/log/mindi.log");
282        mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
283        if (strlen(tmp) > 1) {
284            popup_and_OK(tmp);
285            mr_free(tmp);
286            mr_free(command);
287            mr_free(kernel);
288            fatal_error("Mindi gave a fatal error. Please check '/var/log/mindi.log'.");
289        }
290        mr_free(tmp);
291        mr_free(command);
292    }
293    log_it("Calling Mindi with kernel path of '%s'", kernel);
294    while (!kernel[0]) {
295        if (!ask_me_yes_or_no("Kernel not found or invalid. Choose another?")) {
296            return (NULL);
297        }
298        tmp = popup_and_get_string("Kernel path", "What is the full path and filename of your kernel, please?", kernel);
299        if (tmp == NULL) {
300            fatal_error("Kernel not found. Please specify with the '-k' flag.");
301        }
302        mr_free(kernel);
303        kernel = tmp;
304
305        log_it("User says kernel is at %s", kernel);
306    }
307    return (kernel);
308}
309
310
311
312
313
314
315/**
316 * Find location of specified executable in user's PATH.
317 * @param fname The basename of the executable to search for (e.g. @c afio).
318 * @return The full path to the executable, or "" if it does not exist, or NULL if @c file could not be found.
319 * @note The returned string points to static storage that will be overwritten with each call.
320 * @bug The checks with @c file and @c dirname seem pointless. If @c output is "", then you're calling
321 * <tt>dirname 2\>/dev/null</tt> or <tt>file 2\>/dev/null | cut -d':' -f1 2\>/dev/null</tt>, which basically amounts
322 * to nothing.
323 */
324char *find_home_of_exe(char *fname)
325{
326    /*@ buffers ********************* */
327    char *output = NULL;
328    char *command = NULL;
329
330    /*@******************************* */
331
332    assert_string_is_neither_NULL_nor_zerolength(fname);
333    mr_asprintf(command, "which %s 2> /dev/null", fname);
334    mr_asprintf(output, "%s", call_program_and_get_last_line_of_output(command));
335    mr_free(command);
336    if (output[0] == '\0') {
337        if (system("which file > /dev/null 2> /dev/null")) {
338            mr_free(output);
339            return (NULL);      // forget it :)
340        }
341        mr_asprintf(command, "file %s 2> /dev/null | cut -d':' -f1 2> /dev/null", output);
342        mr_free(output);
343        mr_asprintf(output, "%s", call_program_and_get_last_line_of_output(command));
344        mr_free(command);
345    }
346    if (output[0] == '\0') {
347        mr_asprintf(command, "dirname %s 2> /dev/null", output);
348        mr_free(output);
349        mr_asprintf(output, "%s", call_program_and_get_last_line_of_output(command));
350        mr_free(command);
351    }
352
353    if (output[0] != '\0' && does_file_exist(output)) {
354        log_msg(4, "find_home_of_exe () --- Found %s at %s", fname, output);
355    } else {
356        mr_free(output);
357        log_msg(4, "find_home_of_exe() --- Could not find %s", fname);
358    }
359    return (output);
360}
361
362
363
364
365
366
367
368
369/**
370 * Get the last sequence of digits surrounded by non-digits in the first 32k of
371 * a file.
372 * @param logfile The file to look in.
373 * @return The number found, or 0 if none.
374 */
375int get_trackno_from_logfile(char *logfile)
376{
377
378    /*@ pointers ********************************************************* */
379    FILE *fin;
380
381    /*@ int ************************************************************** */
382    int trackno = 0;
383    size_t len = 0;
384
385    /*@ buffer ************************************************************ */
386    char datablock[32701];
387
388    assert_string_is_neither_NULL_nor_zerolength(logfile);
389    if (!(fin = fopen(logfile, "r"))) {
390        log_OS_error("Unable to open logfile");
391        fatal_error("Unable to open logfile to read trackno");
392    }
393    len = fread(datablock, 1, 32700, fin);
394    paranoid_fclose(fin);
395    if (len <= 0) {
396        return (0);
397    }
398    for (; len > 0 && !isdigit(datablock[len - 1]); len--);
399    datablock[len--] = '\0';
400    for (; len > 0 && isdigit(datablock[len - 1]); len--);
401    trackno = atoi(datablock + len);
402    return (trackno);
403}
404
405
406
407
408
409
410
411/**
412 * Get a percentage from the last line of @p filename. We look for the string
413 * "% done" on the last line and, if we find it, grab the number before the last % sign.
414 * @param filename The file to get the percentage from.
415 * @return The percentage found, or 0 for error.
416 */
417int grab_percentage_from_last_line_of_file(char *filename)
418{
419
420    /*@ buffers ***************************************************** */
421    char *lastline = NULL;
422    char *command = NULL;
423    /*@ pointers **************************************************** */
424    char *p = NULL;
425
426    /*@ int's ******************************************************* */
427    int i = 0;
428
429    for (i = NOOF_ERR_LINES - 1; i >= 0 && !strstr(err_log_lines[i], "% Done") && !strstr(err_log_lines[i], "% done"); i--);
430    if (i < 0) {
431        mr_asprintf(command, "tail -n3 %s | grep -Fi \"%c\" | tail -n1 | awk '{print $0;}'", filename, '%');
432        mr_asprintf(lastline, "%s", call_program_and_get_last_line_of_output(command));
433        mr_free(command);
434        if (!lastline[0]) {
435            mr_free(lastline);
436            return (0);
437        }
438    } else {
439        mr_asprintf(lastline, "%s", err_log_lines[i]);
440    }
441
442    p = strrchr(lastline, '%');
443    if (p) {
444        *p = '\0';
445    } else {
446        mr_free(lastline);
447        return (0);
448    }
449
450    for (p--; isdigit(p) && p != lastline; p--);
451    if (p != lastline) {
452        p++;
453    }
454    i = atoi(p);
455    mr_free(lastline);
456    return (i);
457}
458
459
460
461
462
463/**
464 * Return the last line of @p filename.
465 * @param filename The file to get the last line of.
466 * @return The last line of the file.
467 * @note The returned string points to static storage that will be overwritten with each call.
468 */
469char *last_line_of_file(char *filename)
470{
471    /*@ buffers ***************************************************** */
472    static char output[MAX_STR_LEN];
473    char *command = NULL;
474
475    /*@ pointers **************************************************** */
476    FILE *fin;
477
478    /*@ end vars **************************************************** */
479
480    if (!does_file_exist(filename)) {
481        log_it("Tring to get last line of nonexistent file (%s)", filename);
482        output[0] = '\0';
483        return (output);
484    }
485    mr_asprintf(command, "tail -n1 %s", filename);
486    fin = popen(command, "r");
487    mr_free(command);
488
489    (void) fgets(output, MAX_STR_LEN, fin);
490    paranoid_pclose(fin);
491    while (strlen(output) > 0 && output[strlen(output) - 1] < 32) {
492        output[strlen(output) - 1] = '\0';
493    }
494    return (output);
495}
496
497/**
498 * Get the length of @p filename in bytes.
499 * @param filename The file to get the length of.
500 * @return The length of the file, or -1 for error.
501 */
502off_t length_of_file(char *filename)
503{
504    /*@ pointers *************************************************** */
505    FILE *fin;
506
507    /*@ long long ************************************************* */
508    off_t length;
509
510    fin = fopen(filename, "r");
511    if (!fin) {
512        log_it("filename=%s", filename);
513        log_OS_error("Unable to openin filename");
514        return (-1);
515    }
516    fseeko(fin, 0, SEEK_END);
517    length = ftello(fin);
518    paranoid_fclose(fin);
519    return (length);
520}
521
522
523
524/**
525 * ?????
526 * @bug I don't know what this function does. However, it seems orphaned, so it should probably be removed.
527 */
528int
529make_checksum_list_file(char *filelist, char *cksumlist, char *comppath)
530{
531    /*@ pointers **************************************************** */
532    FILE *fin;
533    FILE *fout;
534
535    /*@ int   ******************************************************* */
536    int percentage;
537    int i;
538    int counter = 0;
539
540    /*@ buffer ****************************************************** */
541    char stub_fname[1000];
542    char curr_fname[1000];
543    char *curr_cksum = NULL;
544    char *tmp = NULL;
545
546    /*@ long [long] ************************************************* */
547    off_t filelist_length;
548    off_t curr_pos;
549    long start_time;
550    long current_time;
551    long time_taken;
552    long time_remaining;
553
554    /*@ end vars *************************************************** */
555
556    start_time = get_time();
557    filelist_length = length_of_file(filelist);
558    log_it("filelist = %s; cksumlist = %s", filelist, cksumlist);
559
560    fin = fopen(filelist, "r");
561    if (fin == NULL) {
562        log_OS_error("Unable to fopen-in filelist");
563        log_to_screen("Can't open filelist");
564        return (1);
565    }
566    fout = fopen(cksumlist, "w");
567    if (fout == NULL) {
568        log_OS_error("Unable to openout cksumlist");
569        paranoid_fclose(fin);
570        log_to_screen("Can't open checksum list");
571        return (1);
572    }
573    for (fgets(stub_fname, 999, fin); !feof(fin);
574         fgets(stub_fname, 999, fin)) {
575        if (stub_fname[(i = strlen(stub_fname) - 1)] < 32) {
576            stub_fname[i] = '\0';
577        }
578        mr_asprintf(tmp, "%s%s", comppath, stub_fname);
579        strcpy(curr_fname, tmp + 1);
580        mr_free(tmp);
581
582        mr_asprintf(curr_cksum, "%s", calc_file_ugly_minichecksum(curr_fname));
583        fprintf(fout, "%s\t%s\n", curr_fname, curr_cksum);
584        mr_free(curr_cksum);
585
586        if (counter++ > 12) {
587            current_time = get_time();
588            counter = 0;
589            curr_fname[37] = '\0';
590            curr_pos = ftello(fin) / 1024;
591            percentage = (int) (curr_pos * 100 / filelist_length);
592            time_taken = current_time - start_time;
593            if (percentage == 0) {
594                /*              printf("%0d%% done      \r",percentage); */
595            } else {
596                time_remaining = time_taken * 100 / (long) (percentage) - time_taken;
597                log_to_screen("%02d%% done   %02d:%02d taken   %02d:%02d remaining  %-37s\r", percentage, (int) (time_taken / 60), (int) (time_taken % 60), (int) (time_remaining / 60), (int) (time_remaining % 60), curr_fname);
598            }
599            sync();
600        }
601    }
602    paranoid_fclose(fout);
603    paranoid_fclose(fin);
604    log_it("Done.");
605    return (0);
606}
607
608
609/**
610 * Create the directory @p outdir_fname and all parent directories. Equivalent to <tt>mkdir -p</tt>.
611 * @param outdir_fname The directory to create.
612 * @return The return value of @c mkdir.
613 */
614int make_hole_for_dir(const char *outdir_fname)
615{
616    char *tmp = NULL;
617    int res = 0;
618
619    assert_string_is_neither_NULL_nor_zerolength(outdir_fname);
620    mr_asprintf(tmp, "mkdir -p %s", outdir_fname);
621    res = system(tmp);
622    mr_free(tmp);
623    return (res);
624}
625
626
627/**
628 * Create the parent directories of @p outfile_fname.
629 * @param outfile_fname The file to make a "hole" for.
630 * @return 0, always.
631 * @bug Return value unnecessary.
632 */
633int make_hole_for_file(char *outfile_fname)
634{
635    /*@ buffer ****************************************************** */
636    char *command = NULL;
637
638    /*@ int  ******************************************************** */
639    int res = 0;
640
641    /*@ end vars *************************************************** */
642
643    assert_string_is_neither_NULL_nor_zerolength(outfile_fname);
644    assert(!strstr(outfile_fname, MNT_CDROM));
645    assert(!strstr(outfile_fname, "/dev/cdrom"));
646    mr_asprintf(command, "mkdir -p \"%s\" 2> /dev/null", outfile_fname);
647    res += system(command);
648    mr_free(command);
649
650    mr_asprintf(command, "rmdir \"%s\" 2> /dev/null", outfile_fname);
651    res += system(command);
652    mr_free(command);
653
654    mr_asprintf(command, "rm -f \"%s\" 2> /dev/null", outfile_fname);
655    res += system(command);
656    mr_free(command);
657
658    unlink(outfile_fname);
659    return (0);
660}
661
662
663
664
665/**
666 * Get the number of lines in @p filelist_fname that contain the string @p wildcard.
667 * @param filelist_fname The file to search through.
668 * @param wildcard The string to search for. This is @e not a shell glob or a regular expression.
669 * @return The number of lines matched.
670 */
671long noof_lines_that_match_wildcard(char *filelist_fname, char *wildcard)
672{
673    /*@ long ******************************************************* */
674    long matches = 0;
675
676    /*@ pointers *************************************************** */
677    FILE *fin;
678
679    /*@ buffers **************************************************** */
680    char incoming[MAX_STR_LEN];
681
682    /*@ end vars *************************************************** */
683
684
685    fin = fopen(filelist_fname, "r");
686
687    if (!fin) {
688        log_OS_error("Unable to openin filelist_fname");
689        return (0);
690    }
691    (void) fgets(incoming, MAX_STR_LEN - 1, fin);
692    while (!feof(fin)) {
693        if (strstr(incoming, wildcard)) {
694            matches++;
695        }
696        (void) fgets(incoming, MAX_STR_LEN - 1, fin);
697    }
698    paranoid_fclose(fin);
699    return (matches);
700}
701
702
703
704/**
705 * Determine the size (in KB) of @p dev in the mountlist in <tt>tmpdir</tt>/mountlist.txt.
706 * @param tmpdir The tempdir where the mountlist is stored.
707 * @param dev The device to search for.
708 * @return The size of the partition in KB.
709 */
710long size_of_partition_in_mountlist_K(char *tmpdir, char *dev)
711{
712    char *command = NULL;
713    char *mountlist = NULL;
714    char *sz_res = NULL;
715    long file_len_K;
716
717    mr_asprintf(mountlist, "%s/mountlist.txt", tmpdir);
718    mr_asprintf(command, "grep \"%s \" %s/mountlist.txt | head -n1 | awk '{print $4}'", dev, tmpdir);
719    mr_free(mountlist);
720
721    log_it(command);
722    mr_asprintf(sz_res, "%s", call_program_and_get_last_line_of_output(command));
723    file_len_K = atol(sz_res);
724    log_msg(4, "%s --> %s --> %ld", command, sz_res, file_len_K);
725    mr_free(sz_res);
726    mr_free(command);
727
728    return (file_len_K);
729}
730
731/**
732 * Calculate the total size (in KB) of all the biggiefiles in this backup.
733 * @param bkpinfo The backup information structure. Only the @c bkpinfo->tmpdir field is used.
734 * @return The total size of all biggiefiles in KB.
735 */
736long size_of_all_biggiefiles_K()
737{
738    /*@ buffers ***************************************************** */
739    char *fname;
740    char *biggielist = NULL;
741    char *tmp = NULL;
742    char *command = NULL;
743
744    /*@ long ******************************************************** */
745    long scratchL = 0;
746    long file_len_K;
747
748    /*@ pointers *************************************************** */
749    FILE *fin = NULL;
750
751    /*@ end vars *************************************************** */
752
753    malloc_string(fname);
754    log_it("Calculating size of all biggiefiles (in total)");
755    mr_asprintf(biggielist, "%s/biggielist.txt", bkpinfo->tmpdir);
756    log_it("biggielist = %s", biggielist);
757    fin = fopen(biggielist, "r");
758    mr_free(biggielist);
759
760    if (!(fin)) {
761        log_OS_error("Cannot open biggielist. OK, so estimate is based on filesets only.");
762    } else {
763        log_msg(4, "Reading it...");
764        for (fgets(fname, MAX_STR_LEN, fin); !feof(fin);
765             fgets(fname, MAX_STR_LEN, fin)) {
766            if (fname[strlen(fname) - 1] <= 32) {
767                fname[strlen(fname) - 1] = '\0';
768            }
769            if (0 == strncmp(fname, "/dev/", 5)) {
770                if (is_dev_an_NTFS_dev(fname)) {
771                    tmp = find_home_of_exe("ntfsresize");
772                    if (!tmp) {
773                        mr_free(tmp);
774                        fatal_error("ntfsresize not found");
775                    }
776                    mr_free(tmp);
777
778                    mr_asprintf(command, "ntfsresize --force --info %s|grep '^You might resize at '|cut -d' ' -f5", fname);
779                    log_it("command = %s", command);
780                    mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
781                    mr_free(command);
782
783                    log_it("res of it = %s", tmp);
784                    file_len_K = atoll(tmp) / 1024L;
785                    mr_free(tmp);
786                } else {
787                    file_len_K = get_phys_size_of_drive(fname) * 1024L;
788                }
789            } else {
790                /* BERLIOS: more than long here ??? */
791                file_len_K = (long) (length_of_file(fname) / 1024);
792            }
793            if (file_len_K > 0) {
794                scratchL += file_len_K;
795                log_msg(4, "%s --> %ld K", fname, file_len_K);
796            }
797            log_msg(4, "After adding %s, scratchL+%ld now equals %ld", fname, file_len_K, scratchL);
798            if (feof(fin)) {
799                break;
800            }
801        }
802    }
803    log_it("Closing...");
804    paranoid_fclose(fin);
805    log_it("Finished calculating total size of all biggiefiles");
806    paranoid_free(fname);
807    return (scratchL);
808}
809
810/**
811 * Determine the amount of space (in KB) occupied by a mounted CD.
812 * This can also be used to find the space used for other directories.
813 * @param mountpt The mountpoint/directory to check.
814 * @return The amount of space occupied in KB.
815 */
816long long space_occupied_by_cd(char *mountpt)
817{
818    /*@ buffer ****************************************************** */
819    char tmp[MAX_STR_LEN];
820    char *command = NULL;
821    long long llres;
822    /*@ pointers **************************************************** */
823    char *p;
824    FILE *fin;
825
826    /*@ end vars *************************************************** */
827
828    mr_asprintf(command, "du -sk %s", mountpt);
829    errno = 0;
830    fin = popen(command, "r");
831    if (errno) {
832      log_it("popen() FAILED: command=%s, mountpt=%s, fin=%d, errno=%d, strerror=%s", command, mountpt, fin, errno, strerror(errno));
833      llres = 0;
834    } else {
835      (void) fgets(tmp, MAX_STR_LEN, fin);
836      paranoid_pclose(fin);
837      p = strchr(tmp, '\t');
838      if (p) {
839        *p = '\0';
840      }
841      for (p = tmp, llres = 0; *p != '\0'; p++) {
842        llres *= 10;
843        llres += (int) (*p - '0');
844      }
845    }
846    mr_free(command);
847
848    return (llres);
849}
850
851
852/**
853 * Update a CRC checksum to include another character.
854 * @param crc The original CRC checksum.
855 * @param c The character to add.
856 * @return The new CRC checksum.
857 * @ingroup utilityGroup
858 */
859unsigned int updcrc(unsigned int crc, unsigned int c)
860{
861    unsigned int tmp;
862    tmp = (crc >> 8) ^ c;
863    crc = (crc << 8) ^ crctttab[tmp & 255];
864    return crc;
865}
866
867/**
868 * Update a reverse CRC checksum to include another character.
869 * @param crc The original CRC checksum.
870 * @param c The character to add.
871 * @return The new CRC checksum.
872 * @ingroup utilityGroup
873 */
874unsigned int updcrcr(unsigned int crc, unsigned int c)
875{
876    unsigned int tmp;
877    tmp = crc ^ c;
878    crc = (crc >> 8) ^ crc16tab[tmp & 0xff];
879    return crc;
880}
881
882
883
884
885/**
886 * Check for an executable on the user's system; write a message to the
887 * screen and the log if we can't find it.
888 * @param fname The executable basename to look for.
889 * @return 0 if it's found, nonzero if not.
890 */
891int whine_if_not_found(char *fname)
892{
893    /*@ buffers *** */
894    char *command = NULL;
895    int res = 0;
896
897    mr_asprintf(command, "which %s > /dev/null 2> /dev/null", fname);
898    res = system(command);
899    mr_free(command);
900
901    if (res) {
902        log_to_screen("Please install '%s'. I cannot find it on your system.", fname);
903        log_to_screen("There may be hyperlink at http://www.mondorescue.com which");
904        log_to_screen("will take you to the relevant (missing) package.");
905        return (1);
906    } else {
907        return (0);
908    }
909}
910
911
912
913
914
915
916/**
917 * Create a data file at @p fname containing @p contents.
918 * The data actually can be multiple lines, despite the name.
919 * @param fname The file to create.
920 * @param contents The data to put in it.
921 * @return 0 for success, 1 for failure.
922 */
923int write_one_liner_data_file(char *fname, char *contents)
924{
925    /*@ pointers *************************************************** */
926    FILE *fout;
927    int res = 0;
928
929    /*@ end vars *************************************************** */
930
931    assert_string_is_neither_NULL_nor_zerolength(fname);
932    if (!contents) {
933        log_it("%d: Warning - writing NULL to %s", __LINE__, fname);
934    }
935    if (!(fout = fopen(fname, "w"))) {
936        log_it("fname=%s");
937        log_OS_error("Unable to openout fname");
938        return (1);
939    }
940    fprintf(fout, "%s\n", contents);
941    paranoid_fclose(fout);
942    return (res);
943}
944
945
946
947/**
948 * Read @p fname into @p contents.
949 * @param fname The file to read.
950 * @param contents Where to put its contents.
951 * @return 0 for success, nonzero for failure.
952 */
953int read_one_liner_data_file(char *fname, char *contents)
954{
955    /*@ pointers *************************************************** */
956    FILE *fin;
957    int res = 0;
958    int i;
959
960    /*@ end vars *************************************************** */
961
962    assert_string_is_neither_NULL_nor_zerolength(fname);
963    if (!contents) {
964        log_it("%d: Warning - reading NULL from %s", __LINE__, fname);
965    }
966    if (!(fin = fopen(fname, "r"))) {
967        log_it("fname=%s", fname);
968        log_OS_error("Unable to openin fname");
969        return (1);
970    }
971    fscanf(fin, "%s\n", contents);
972    i = strlen(contents);
973    if (i > 0 && contents[i - 1] < 32) {
974        contents[i - 1] = '\0';
975    }
976    paranoid_fclose(fin);
977    return (res);
978}
979
980
981
982
983
984
985
986
987
988/**
989 * Copy the files that Mondo/Mindi need to run to the scratchdir or tempdir.
990 * Currently this includes: copy Mondo's home directory to scratchdir,
991 * copy LAST-FILELIST-NUMBER to scratchdir, copy mondorestore
992 * and post-nuke.tgz (if it exists) to tmpdir, and run "hostname > scratchdir/HOSTNAME".
993 * @param bkpinfo The backup information structure. Fields used:
994 * - @c bkpinfo->postnuke_tarball
995 * - @c bkpinfo->scratchdir
996 * - @c bkpinfo->tmpdir
997 */
998void copy_mondo_and_mindi_stuff_to_scratchdir()
999{
1000    /*@ Char buffers ** */
1001    char *command = NULL;
1002    char *tmp = NULL;
1003    int res = 0;
1004
1005    mvaddstr_and_log_it(g_currentY, 0, "Copying Mondo's core files to the scratch directory");
1006
1007    log_msg(4, "g_mondo_home='%s'", g_mondo_home);
1008    if (strlen(g_mondo_home) < 2) {
1009        find_and_store_mondoarchives_home(g_mondo_home);
1010    }
1011    mr_asprintf(command, CP_BIN " --parents -pRdf %s %s", g_mondo_home, bkpinfo->scratchdir);
1012
1013    log_msg(4, "command = %s", command);
1014    res = run_program_and_log_output(command, 1);
1015    mr_free(command);
1016
1017    if (res) {
1018        fatal_error("Failed to copy Mondo's stuff to scratchdir");
1019    }
1020
1021    mr_asprintf(command, "cp -f %s/LAST-FILELIST-NUMBER %s", bkpinfo->tmpdir, bkpinfo->scratchdir);
1022    res = run_program_and_log_output(command, FALSE);
1023    mr_free(command);
1024
1025    if (res) {
1026        fatal_error("Failed to copy LAST-FILELIST-NUMBER to scratchdir");
1027    }
1028
1029    mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("which mondorestore"));
1030    if (!tmp[0]) {
1031        mr_free(tmp);
1032        fatal_error("'which mondorestore' returned null. Where's your mondorestore? `which` can't find it. That's odd. Did you install mondorestore?");
1033    }
1034    mr_asprintf(command, "cp -f %s %s", tmp, bkpinfo->tmpdir);
1035    mr_free(tmp);
1036
1037    res = run_program_and_log_output(command, FALSE);
1038    mr_free(command);
1039
1040    if (res) {
1041        fatal_error("Failed to copy mondorestore to tmpdir");
1042    }
1043
1044    mr_asprintf(command, "hostname > %s/HOSTNAME", bkpinfo->scratchdir);
1045    paranoid_system(command);
1046    mr_free(command);
1047
1048    if (bkpinfo->postnuke_tarball) {
1049        mr_asprintf(command, "cp -f %s %s/post-nuke.tgz", bkpinfo->postnuke_tarball, bkpinfo->tmpdir);
1050        res = run_program_and_log_output(command, FALSE);
1051        mr_free(command);
1052
1053        if (res) {
1054            fatal_error("Unable to copy post-nuke tarball to tmpdir");
1055        }
1056    }
1057
1058    mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1059}
1060
1061
1062
1063
1064
1065/**
1066 * Store the client's NFS configuration in files to be restored at restore-time.
1067 * Assumes that @c bkpinfo->media_type = nfs, but does not check for this.
1068 * @param bkpinfo The backup information structure. Fields used:
1069 * - @c nfs_mount
1070 * - @c nfs_remote_dir
1071 * - @c tmpdir
1072 */
1073void store_nfs_config()
1074{
1075
1076    /*@ buffers ******** */
1077    char *nfs_dev = NULL;
1078    char *mac_addr = NULL;
1079    char *nfs_mount = NULL;
1080    char *nfs_client_ipaddr = NULL;
1081    char *nfs_client_netmask = NULL;
1082    char *nfs_client_broadcast = NULL;
1083    char *nfs_client_defgw = NULL;
1084    char *nfs_server_ipaddr = NULL;
1085    char *tmp = NULL;
1086    char *command = NULL;
1087
1088    /*@ pointers ***** */
1089    char *p;
1090
1091    if (! bkpinfo->nfs_mount) {
1092        fatal_error("No nfs_mount found !");
1093    }
1094
1095    log_it("Storing NFS configuration");
1096    mr_asprintf(tmp, "%s", bkpinfo->nfs_mount);
1097    p = strchr(tmp, ':');
1098    if (!p) {
1099        fatal_error("NFS mount doesn't have a colon in it, e.g. 192.168.1.4:/home/nfs");
1100    }
1101    *(p++) = '\0';
1102    mr_asprintf(nfs_server_ipaddr, "%s", tmp);
1103    mr_asprintf(nfs_mount, "%s", p);
1104    mr_free(tmp);
1105
1106    /* BERLIOS : there is a bug #67 here as it only considers the first NIC */
1107    mr_asprintf(command, "ifconfig | tr '\n' '#' | sed s/##// | tr '#' ' ' | tr '' '\n' | head -n1 | cut -d' ' -f1");
1108    mr_asprintf(nfs_dev, "%s", call_program_and_get_last_line_of_output(command));
1109    mr_free(command);
1110
1111    mr_asprintf(command, "%s", "ifconfig | tr '\n' '#' | sed s/##// | tr '#' ' ' | tr '' '\\n' | head -n1 | tr -s '\t' ' ' | cut -d' ' -f7 | cut -d':' -f2");
1112    mr_asprintf(nfs_client_ipaddr, "%s", call_program_and_get_last_line_of_output(command));
1113    mr_free(command);
1114
1115    mr_asprintf(command, "%s", "ifconfig | tr '\n' '#' | sed s/##// | tr '#' ' ' | tr '' '\\n' | head -n1 | tr -s '\t' ' ' | cut -d' ' -f9 | cut -d':' -f2");
1116    mr_asprintf(nfs_client_netmask, "%s", call_program_and_get_last_line_of_output(command));
1117    mr_free(command);
1118
1119    mr_asprintf(command, "%s", "ifconfig | tr '\n' '#' | sed s/##// | tr '#' ' ' | tr '' '\\n' | head -n1 | tr -s '\t' ' ' | cut -d' ' -f8 | cut -d':' -f2");
1120    mr_asprintf(nfs_client_broadcast, "%s", call_program_and_get_last_line_of_output(command));
1121    mr_free(command);
1122
1123    mr_asprintf(command, "%s", "route -n | grep '^0.0.0.0' | awk '{print $2}'");
1124    mr_asprintf(nfs_client_defgw, "%s", call_program_and_get_last_line_of_output(command));
1125    mr_free(command);
1126
1127    if (strlen(nfs_dev) < 2) {
1128        fatal_error
1129            ("Unable to find ethN (eth0, eth1, ...) adapter via NFS mount you specified.");
1130    }
1131    /********
1132    * If the NFS device that found above is a bonded device,
1133    * we need to replace it with an ethN device or the
1134    * networking will not start during an NFS restore.
1135    *
1136    * If the NFS device in nfs_dev begins with the word "bond", or alb or aft
1137    * look for the corresponding slave ethN device and copy it to nfs_dev.
1138    * Using the common MAC address
1139    ********/
1140    if (!strncmp(nfs_dev, "bond", 4) || !strncmp(nfs_dev, "alb", 3) || !strncmp(nfs_dev, "aft", 3)) {
1141        log_to_screen("Found bonding device %s; looking for corresponding ethN slave device\n", nfs_dev);
1142        mr_asprintf(command, "%s", "ifconfig %s | awk '{print $5}' | head -n1", nfs_dev);
1143        mr_asprintf(mac_addr, "%s", call_program_and_get_last_line_of_output(command));
1144        mr_free(command);
1145
1146        mr_asprintf(command, "ifconfig | grep -E '%s' | grep -v '%s' | head -n1 | cut -d' ' -f1", mac_addr,nfs_dev);
1147        mr_free(mac_addr);
1148        mr_free(nfs_dev);
1149
1150        mr_asprintf(nfs_dev, "%s", call_program_and_get_last_line_of_output(command));
1151        mr_free(command);
1152
1153        log_to_screen("Replacing it with %s\n", nfs_dev);
1154    }
1155
1156    mr_asprintf(tmp, "%s/NFS-DEV", bkpinfo->tmpdir);
1157    write_one_liner_data_file(tmp, nfs_dev);
1158    mr_free(nfs_dev);
1159    mr_free(tmp);
1160
1161    mr_asprintf(tmp, "%s/NFS-CLIENT-IPADDR", bkpinfo->tmpdir);
1162    write_one_liner_data_file(tmp, nfs_client_ipaddr);
1163    mr_free(nfs_client_ipaddr);
1164    mr_free(tmp);
1165
1166    mr_asprintf(tmp, "%s/NFS-CLIENT-NETMASK", bkpinfo->tmpdir);
1167    write_one_liner_data_file(tmp, nfs_client_netmask);
1168    mr_free(nfs_client_netmask);
1169    mr_free(tmp);
1170
1171    mr_asprintf(tmp, "%s/NFS-CLIENT-BROADCAST", bkpinfo->tmpdir);
1172    write_one_liner_data_file(tmp, nfs_client_broadcast);
1173    mr_free(nfs_client_broadcast);
1174    mr_free(tmp);
1175
1176    mr_asprintf(tmp, "%s/NFS-CLIENT-DEFGW", bkpinfo->tmpdir);
1177    write_one_liner_data_file(tmp, nfs_client_defgw);
1178    mr_free(nfs_client_defgw);
1179    mr_free(tmp);
1180
1181    mr_asprintf(tmp, "%s/NFS-SERVER-IPADDR", bkpinfo->tmpdir);
1182    write_one_liner_data_file(tmp, nfs_server_ipaddr);
1183    mr_free(tmp);
1184    mr_free(nfs_server_ipaddr);
1185
1186    mr_asprintf(tmp, "%s/NFS-SERVER-MOUNT", bkpinfo->tmpdir);
1187    write_one_liner_data_file(tmp, bkpinfo->nfs_mount);
1188    mr_free(tmp);
1189    mr_free(nfs_mount);
1190
1191    mr_asprintf(tmp, "%s/NFS-SERVER-PATH", bkpinfo->tmpdir);
1192    write_one_liner_data_file(tmp, bkpinfo->nfs_remote_dir);
1193    mr_free(tmp);
1194
1195    mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
1196    write_one_liner_data_file(tmp, bkpinfo->prefix);
1197    mr_free(tmp);
1198
1199    log_it("Finished storing NFS configuration");
1200}
1201
1202
1203/**
1204 * Determine the approximate number of media that the backup will take up,
1205 * and tell the user. The uncompressed size is estimated as size_of_all_biggiefiles_K()
1206 * plus (noof_sets x bkpinfo->optimal_set_size). The compression factor is estimated as
1207 * 2/3 for LZO and 1/2 for bzip2. The data is not saved anywhere. If there are any
1208 * "imagedevs", the estimate is not shown as it will be wildly inaccurate.
1209 * If there are more than 50 media estimated, the estimate will not be shown.
1210 * @param bkpinfo The backup information structure. Fields used:
1211 * - @c bkpinfo->backup_media_type
1212 * - @c bkpinfo->media_size
1213 * - @c bkpinfo->optimal_set_size
1214 * - @c bkpinfo->use_lzo
1215 * @param noof_sets The number of filesets created.
1216 * @ingroup archiveGroup
1217 */
1218void
1219estimate_noof_media_required(long noof_sets)
1220{
1221    /*@ buffers *************** */
1222    char *tmp = NULL;
1223    char *mds = NULL;
1224
1225    /*@ long long ************* */
1226    long long scratchLL;
1227
1228    if (bkpinfo->media_size[1] <= 0) {
1229        log_to_screen("Number of media required: UNKNOWN");
1230        return;
1231    }
1232
1233    log_it("Estimating number of media required...");
1234    scratchLL =
1235        (long long) (noof_sets) * (long long) (bkpinfo->optimal_set_size)
1236        + (long long) (size_of_all_biggiefiles_K());
1237    scratchLL = (scratchLL / 1024) / bkpinfo->media_size[1];
1238    scratchLL++;
1239    if (bkpinfo->use_lzo) {
1240        scratchLL = (scratchLL * 2) / 3;
1241    } else if (bkpinfo->use_gzip) {
1242        scratchLL = (scratchLL * 2) / 3;
1243    } else if (bkpinfo->use_lzma) {
1244        scratchLL = (scratchLL * 2) / 3;
1245    } else {
1246        scratchLL = scratchLL / 2;
1247    }
1248    if (!scratchLL) {
1249        scratchLL++;
1250    }
1251    if (scratchLL <= 1) {
1252        mds = media_descriptor_string(bkpinfo->backup_media_type);
1253        mr_asprintf(tmp, "Your backup will probably occupy a single %s. Maybe two.", mds);
1254        mr_free(mds);
1255    } else if (scratchLL > 4) {
1256        mr_asprintf(tmp, "Your backup will occupy one meeeeellion media! (maybe %s)", number_to_text((int) (scratchLL + 1)));
1257    } else {
1258        mr_asprintf(tmp, "Your backup will occupy approximately %s media.", number_to_text((int) (scratchLL + 1)));
1259    }
1260    if (scratchLL < 50) {
1261        log_to_screen(tmp);
1262    }
1263    mr_free(tmp);
1264}
1265
1266
1267/**
1268 * Determine whether a file is compressed. This is done
1269 * by reading through the "do-not-compress-these" file distributed with Mondo.
1270 * @param filename The file to check.
1271 * @return TRUE if it's compressed, FALSE if not.
1272 */
1273bool is_this_file_compressed(char *filename)
1274{
1275    char *do_not_compress_these = NULL;
1276    char *tmp = NULL;
1277    char *p;
1278    char *q = NULL;
1279
1280    q = strrchr(filename, '.');
1281    if (q == NULL) {
1282        return (FALSE);
1283    }
1284
1285    mr_asprintf(tmp, "%s/do-not-compress-these", g_mondo_home);
1286    if (!does_file_exist(tmp)) {
1287        mr_free(tmp);
1288        return (FALSE);
1289    }
1290    /* BERLIOS: This is just plain WRONG !! */
1291    mr_asprintf(do_not_compress_these, "%s", last_line_of_file(tmp));
1292    mr_free(tmp);
1293
1294    for (p = do_not_compress_these; p != NULL; p++) {
1295        mr_asprintf(tmp, "%s", p);
1296        if (strchr(tmp, ' ')) {
1297            *(strchr(tmp, ' ')) = '\0';
1298        }
1299        if (!strcmp(q, tmp)) {
1300            mr_free(tmp);
1301            mr_free(do_not_compress_these);
1302            return (TRUE);
1303        }
1304        if (!(p = strchr(p, ' '))) {
1305            break;
1306        }
1307        mr_free(tmp);
1308    }
1309    mr_free(do_not_compress_these);
1310    return (FALSE);
1311}
1312
1313
1314int mode_of_file(char *fname)
1315{
1316    struct stat buf;
1317
1318    if (lstat(fname, &buf)) {
1319        return (-1);
1320    }                           // error
1321    else {
1322        return (buf.st_mode);
1323    }
1324}
1325
1326
1327
1328
1329/**
1330 * Create a small script that mounts /boot, calls @c grub-install, and syncs the disks.
1331 * @param outfile Where to put the script.
1332 * @return 0 for success, 1 for failure.
1333 */
1334int make_grub_install_scriptlet(char *outfile)
1335{
1336    FILE *fout;
1337    char *tmp = NULL;
1338    int retval = 0;
1339
1340    if ((fout = fopen(outfile, "w"))) {
1341        fprintf(fout,
1342                "#!/bin/sh\n\nmount /boot > /dev/null 2> /dev/null\ngrub-install $@\nres=$?\nsync;sync;sync\nexit $res\n");
1343        paranoid_fclose(fout);
1344        log_msg(2, "Created %s", outfile);
1345        mr_asprintf(tmp, "chmod +x %s", outfile);
1346        paranoid_system(tmp);
1347        mr_free(tmp);
1348        retval = 0;
1349    } else {
1350        retval = 1;
1351    }
1352    return (retval);
1353}
1354
1355/* @} - end fileGroup */
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