source: branches/3.2/mondo/src/common/libmondo-files.c @ 3272

Last change on this file since 3272 was 3272, checked in by Bruno Cornec, 6 years ago
  • Removes now useles code from the C part which has been moved into mr-net-get-config (remains to handle bonding cases)
  • Property svn:keywords set to Id
File size: 33.1 KB
Line 
1/* file manipulation
2   $Id: libmondo-files.c 3272 2014-04-29 19:24:56Z 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 3272 2014-04-29 19:24:56Z 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 = NULL;
53    char *q;
54    FILE *fin;
55
56    /*@ initialize pointers ***************************************** */
57
58    p = output;
59
60    /*@************************************************************** */
61
62    assert_string_is_neither_NULL_nor_zerolength(filename);
63    if (does_file_exist(filename)) {
64        mr_asprintf(command, "md5sum \"%s\"", filename);
65        fin = popen(command, "r");
66        if (fin) {
67            q = fgets(output, MAX_STR_LEN, fin);
68            if (!q) {
69                // FIXME
70            }
71            q = strchr(output, ' ');
72            paranoid_pclose(fin);
73        }
74        mr_free(command);
75    } else {
76        log_it("File '%s' not found; cannot calc checksum", filename);
77    }
78    if (p) {
79        *p = '\0';
80    }
81    return (output);
82}
83
84
85/**
86 * Get a not-quite-unique representation of some of the file's @c stat properties.
87 * The returned string has the form <tt>size-mtime-ctime</tt>.
88 * @param curr_fname The file to generate the "checksum" for.
89 * @return The "checksum".
90 * @note The returned string points to static storage that will be overwritten with each call.
91 */
92char *calc_file_ugly_minichecksum(char *curr_fname)
93{
94
95    /*@ buffers ***************************************************** */
96    static char curr_cksum[1000];
97
98    /*@ pointers **************************************************** */
99
100    /*@ structures ************************************************** */
101    struct stat buf;
102
103    /*@ initialize data *************************************************** */
104    curr_cksum[0] = '\0';
105
106    /*@************************************************************** */
107
108    assert_string_is_neither_NULL_nor_zerolength(curr_fname);
109    if (lstat(curr_fname, &buf)) {
110        return (curr_cksum);    // empty
111    }
112
113    sprintf(curr_cksum, "%ld-%ld-%ld", (long) (buf.st_size),
114            (long) (buf.st_mtime), (long) (buf.st_ctime));
115    return (curr_cksum);
116}
117
118
119
120/**
121 * Get the number of lines in @p filename.
122 * @param filename The file to count lines in.
123 * @return The number of lines in @p filename.
124 * @bug This function uses the shell and "wc -l"; it should probably be rewritten in C.
125 */
126long count_lines_in_file(char *filename)
127{
128
129    /*@ buffers ***************************************************** */
130    char *command = NULL;
131    char *incoming = NULL;
132
133    /*@ long ******************************************************** */
134    long noof_lines = -1L;
135
136    /*@ pointers **************************************************** */
137    FILE *fin;
138
139    assert_string_is_neither_NULL_nor_zerolength(filename);
140    if (!does_file_exist(filename)) {
141        log_it("%s does not exist, so I cannot found the number of lines in it", filename);
142        return (0);
143    }
144    mr_asprintf(command, "cat %s | wc -l", filename);
145    if (!does_file_exist(filename)) {
146        mr_free(command);
147        return (-1);
148    }
149    fin = popen(command, "r");
150    mr_free(command);
151
152    if (fin) {
153        if (feof(fin)) {
154            noof_lines = 0;
155        } else {
156            mr_getline(incoming, fin);
157            while (strlen(incoming) > 0 && incoming[strlen(incoming) - 1] < 32) {
158                incoming[strlen(incoming) - 1] = '\0';
159            }
160            noof_lines = atol(incoming);
161            mr_free(incoming);
162        }
163        paranoid_pclose(fin);
164    }
165    return (noof_lines);
166}
167
168
169/**
170 * Check for existence of given @p filename.
171 * @param filename The file to check for.
172 * @return TRUE if it exists, FALSE otherwise.
173 */
174bool does_file_exist(char *filename)
175{
176
177    /*@ structures ************************************************** */
178    struct stat buf;
179
180    /*@************************************************************** */
181
182    assert(filename != NULL);
183    //  assert_string_is_neither_NULL_nor_zerolength(filename);
184    if (lstat(filename, &buf)) {
185        log_msg(20, "%s does not exist", filename);
186        return (FALSE);
187    } else {
188        log_msg(20, "%s exists", filename);
189        return (TRUE);
190    }
191}
192
193
194
195
196
197
198/**
199 * Modify @p inout (a file containing a list of files) to only contain files
200 * that exist.
201 * @param inout The filelist to operate on.
202 * @note The original file is renamed beforehand, so it will not be accessible
203 * while the modification is in progress.
204 */
205void exclude_nonexistent_files(char *inout)
206{
207    char *infname = NULL;
208    char *outfname = NULL;
209    char *tmp = NULL;
210    char *incoming = NULL;
211
212    /*@ int ********************************************************* */
213    int i;
214
215    /*@ pointers **************************************************** */
216    FILE *fin, *fout;
217
218
219    /*@ end vars *********************************************************** */
220
221    assert_string_is_neither_NULL_nor_zerolength(inout);
222    mr_asprintf(infname, "%s.in", inout);
223    mr_asprintf(tmp, "cp -f %s %s", inout, infname);
224    run_program_and_log_output(tmp, FALSE);
225    mr_free(tmp);
226
227    if (!(fin = fopen(infname, "r"))) {
228        log_OS_error("Unable to openin infname");
229        mr_free(infname);
230        return;
231    }
232
233    mr_asprintf(outfname, "%s", inout);
234    if (!(fout = fopen(outfname, "w"))) {
235        log_OS_error("Unable to openout outfname");
236        mr_free(infname);
237        mr_free(outfname);
238        return;
239    }
240    mr_free(outfname);
241
242    for (mr_getline(incoming, fin); !feof(fin); mr_getline(incoming, fin)) {
243        i = strlen(incoming) - 1;
244        if (i >= 0 && incoming[i] < 32) {
245            incoming[i] = '\0';
246        }
247        if (does_file_exist(incoming)) {
248            fprintf(fout, "%s\n", incoming);
249        } else {
250            log_it("Excluding '%s'-nonexistent\n", incoming);
251        }
252        mr_free(incoming);
253    }
254    mr_free(incoming);
255
256    paranoid_fclose(fout);
257    paranoid_fclose(fin);
258    unlink(infname);
259    mr_free(infname);
260}
261
262
263/**
264 * Attempt to find the user's kernel by calling Mindi.
265 * If Mindi can't find the kernel, ask user. If @p kernel is not empty,
266 * don't do anything.
267 * @param kernel Where to put the found kernel.
268 * @return 0 for success, 1 for failure.
269 */
270int figure_out_kernel_path_interactively_if_necessary(char *kernel)
271{
272    char *tmp = NULL;
273    char *command = NULL;
274
275    if (!kernel[0]) {
276        strcpy(kernel, call_program_and_get_last_line_of_output("mindi --findkernel 2> /dev/null"));
277    }
278    // If we didn't get anything back, check whether mindi raised a fatal error
279    if (!kernel[0]) {
280        mr_asprintf(command, "%s", "grep 'Fatal error' /var/log/mindi.log");
281        mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
282        if (strlen(tmp) > 1) {
283            popup_and_OK(tmp);
284            mr_free(tmp);
285            mr_free(command);
286            fatal_error("Mindi gave a fatal error. Please check '/var/log/mindi.log'.");
287        }
288        mr_free(tmp);
289        mr_free(command);
290    }
291    log_it("Calling Mindi with kernel path of '%s'", kernel);
292    while (!kernel[0]) {
293        if (!ask_me_yes_or_no("Kernel not found or invalid. Choose another?")) {
294            return (1);
295        }
296        if (!popup_and_get_string("Kernel path", "What is the full path and filename of your kernel, please?", kernel, MAX_STR_LEN / 4)) {
297            fatal_error("Kernel not found. Please specify with the '-k' flag.");
298        }
299        log_it("User says kernel is at %s", kernel);
300    }
301    return (0);
302}
303
304
305/**
306 * Find location of specified executable in user's PATH.
307 * @param fname The basename of the executable to search for (e.g. @c afio).
308 * @return The full path to the executable, or "" if it does not exist, or NULL if @c file could not be found.
309 * @note The returned string points to static storage that will be overwritten with each call.
310 * @bug The checks with @c file and @c dirname seem pointless. If @c incoming is "", then you're calling
311 * <tt>dirname 2\>/dev/null</tt> or <tt>file 2\>/dev/null | cut -d':' -f1 2\>/dev/null</tt>, which basically amounts
312 * to nothing.
313 */
314char *find_home_of_exe(char *fname)
315{
316    /*@ buffers ********************* */
317    static char output[MAX_STR_LEN];
318    char *incoming = NULL;
319    char *command = NULL;
320
321    /*@******************************* */
322
323    assert_string_is_neither_NULL_nor_zerolength(fname);
324    mr_asprintf(command, "which %s 2> /dev/null", fname);
325    mr_asprintf(incoming, "%s", call_program_and_get_last_line_of_output(command));
326    mr_free(command);
327
328    if (incoming[0] == '\0') {
329        if (system("which file > /dev/null 2> /dev/null")) {
330            mr_free(incoming);
331            output[0] = '\0';
332            return(NULL);       // forget it :)
333        }
334        mr_asprintf(command, "file %s 2> /dev/null | cut -d':' -f1 2> /dev/null", incoming);
335        mr_free(incoming);
336
337        mr_asprintf(incoming, "%s", call_program_and_get_last_line_of_output(command));
338        mr_free(command);
339    }
340    if (incoming[0] == '\0') {
341        mr_asprintf(command, "dirname %s 2> /dev/null", incoming);
342        mr_free(incoming);
343
344        mr_asprintf(incoming, "%s", call_program_and_get_last_line_of_output(command));
345        mr_free(command);
346    }
347    strcpy(output, incoming);
348    if (output[0] != '\0' && does_file_exist(output)) {
349        log_msg(4, "find_home_of_exe --- Found %s at %s", fname, incoming);
350    } else {
351        output[0] = '\0';
352        log_msg(4, "find_home_of_exe --- Could not find %s", fname);
353    }
354    mr_free(incoming);
355    if (!output[0]) {
356        return(NULL);
357    } else {
358        return(output);
359    }
360}
361
362
363/**
364 * Get the last sequence of digits surrounded by non-digits in the first 32k of
365 * a file.
366 * @param logfile The file to look in.
367 * @return The number found, or 0 if none.
368 */
369int get_trackno_from_logfile(char *logfile)
370{
371
372    /*@ pointers ********************************************************* */
373    FILE *fin;
374
375    /*@ int ************************************************************** */
376    int trackno = 0;
377    size_t len = 0;
378
379    /*@ buffer ************************************************************ */
380    char datablock[32701];
381
382    assert_string_is_neither_NULL_nor_zerolength(logfile);
383    if (!(fin = fopen(logfile, "r"))) {
384        log_OS_error("Unable to open logfile");
385        fatal_error("Unable to open logfile to read trackno");
386    }
387    len = fread(datablock, 1, 32700, fin);
388    paranoid_fclose(fin);
389    if (len <= 0) {
390        return (0);
391    }
392    for (; len > 0 && !isdigit(datablock[len - 1]); len--);
393    datablock[len--] = '\0';
394    for (; len > 0 && isdigit(datablock[len - 1]); len--);
395    trackno = atoi(datablock + len);
396    return (trackno);
397}
398
399
400
401
402
403
404
405/**
406 * Get a percentage from the last line of @p filename. We look for the string
407 * "% done" on the last line and, if we find it, grab the number before the last % sign.
408 * @param filename The file to get the percentage from.
409 * @return The percentage found, or 0 for error.
410 */
411int grab_percentage_from_last_line_of_file(char *filename)
412{
413
414    /*@ buffers ***************************************************** */
415    char *lastline = NULL;
416    char *command = NULL;
417    /*@ pointers **************************************************** */
418    char *p = NULL;
419
420    /*@ int's ******************************************************* */
421    int i = 0;
422
423    for (i = NOOF_ERR_LINES - 1; i >= 0 && !strstr(err_log_lines[i], "% Done") && !strstr(err_log_lines[i], "% done"); i--);
424    if (i < 0) {
425        mr_asprintf(command, "tail -n3 %s | grep -Fi \"%c\" | tail -n1 | awk '{print $0;}'", filename, '%');
426        mr_asprintf(lastline, "%s", call_program_and_get_last_line_of_output(command));
427        mr_free(command);
428        if (!lastline[0]) {
429            mr_free(lastline);
430            return(0);
431        }
432    } else {
433        mr_asprintf(lastline, "%s", err_log_lines[i]);
434    }
435
436    p = strrchr(lastline, '%');
437    if (p) {
438        *p = '\0';
439    } else {
440        mr_free(lastline);
441        return(0);
442    }
443
444    for (p--; isdigit(*p) && p != lastline; p--);
445    if (p != lastline) {
446        p++;
447    }
448    i = atoi(p);
449    mr_free(lastline);
450    return(i);
451}
452
453
454
455
456
457/**
458 * Return the last line of @p filename.
459 * @param filename The file to get the last line of.
460 * @return The last line of the file.
461 * @note The returned string points to static storage that will be overwritten with each call.
462 */
463char *last_line_of_file(char *filename)
464{
465    /*@ buffers ***************************************************** */
466    static char output[MAX_STR_LEN];
467    char *command = NULL;
468    char *p = NULL;
469
470    /*@ pointers **************************************************** */
471    FILE *fin;
472
473    /*@ end vars **************************************************** */
474
475    if (!does_file_exist(filename)) {
476        log_it("Trying to get last line of nonexistent file (%s)", filename);
477        output[0] = '\0';
478        return (output);
479    }
480    mr_asprintf(command, "tail -n1 %s", filename);
481    fin = popen(command, "r");
482    mr_free(command);
483    p = fgets(output, MAX_STR_LEN, fin);
484    if (p == NULL) {
485        // FIXME
486    }
487    paranoid_pclose(fin);
488    while (strlen(output) > 0 && output[strlen(output) - 1] < 32) {
489        output[strlen(output) - 1] = '\0';
490    }
491    return(output);
492}
493
494/**
495 * Get the length of @p filename in bytes.
496 * @param filename The file to get the length of.
497 * @return The length of the file, or -1 for error.
498 */
499off_t length_of_file(char *filename)
500{
501    /*@ pointers *************************************************** */
502    FILE *fin;
503
504    /*@ long long ************************************************* */
505    off_t length;
506
507    fin = fopen(filename, "r");
508    if (!fin) {
509        log_it("filename=%s", filename);
510        log_OS_error("Unable to openin filename");
511        return(-1);
512    }
513    fseeko(fin, 0, SEEK_END);
514    length = ftello(fin);
515    paranoid_fclose(fin);
516    return(length);
517}
518
519
520
521/**
522 * ?????
523 * @bug I don't know what this function does. However, it seems orphaned, so it should probably be removed.
524 */
525int make_checksum_list_file(char *filelist, char *cksumlist, char *comppath) {
526    /*@ pointers **************************************************** */
527    FILE *fin;
528    FILE *fout;
529
530    /*@ int   ******************************************************* */
531    int percentage;
532    int i;
533    int counter = 0;
534
535    /*@ buffer ****************************************************** */
536    char *stub_fname = NULL;
537    char *curr_fname = NULL;
538    char *curr_cksum = NULL;
539    char *tmp = NULL;
540
541    /*@ long [long] ************************************************* */
542    off_t filelist_length;
543    off_t curr_pos;
544    long start_time;
545    long current_time;
546    long time_taken;
547    long time_remaining;
548
549    /*@ end vars *************************************************** */
550
551    start_time = get_time();
552    filelist_length = length_of_file(filelist);
553    log_it("filelist = %s; cksumlist = %s", filelist, cksumlist);
554
555    fin = fopen(filelist, "r");
556    if (fin == NULL) {
557        log_OS_error("Unable to fopen-in filelist");
558        log_to_screen("Can't open filelist");
559        return(1);
560    }
561    fout = fopen(cksumlist, "w");
562    if (fout == NULL) {
563        log_OS_error("Unable to openout cksumlist");
564        paranoid_fclose(fin);
565        log_to_screen("Can't open checksum list");
566        return(1);
567    }
568    for (mr_getline(stub_fname, fin); !feof(fin); mr_getline(stub_fname, fin)) {
569        i = strlen(stub_fname) - 1;
570        if (stub_fname[i] < 32) {
571            stub_fname[i] = '\0';
572        }
573        mr_asprintf(tmp, "%s%s", comppath, stub_fname);
574        mr_free(stub_fname);
575
576        mr_asprintf(curr_fname, "%s", tmp + 1);
577        mr_free(tmp);
578
579        mr_asprintf(curr_cksum, "%s", calc_file_ugly_minichecksum(curr_fname));
580        fprintf(fout, "%s\t%s\n", curr_fname, curr_cksum);
581        mr_free(curr_cksum);
582
583        if (counter++ > 12) {
584            current_time = get_time();
585            counter = 0;
586            /* BERLIOS: 37 really ? */
587            curr_fname[37] = '\0';
588            curr_pos = ftello(fin) / 1024;
589            percentage = (int) (curr_pos * 100 / filelist_length);
590            time_taken = current_time - start_time;
591            if (percentage != 0) {
592                time_remaining = time_taken * 100 / (long) (percentage) - time_taken;
593                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);
594            }
595            sync();
596        }
597        mr_free(curr_fname);
598    }
599    mr_free(stub_fname);
600
601    paranoid_fclose(fout);
602    paranoid_fclose(fin);
603    log_it("Done.");
604    return(0);
605}
606
607
608/**
609 * Create the directory @p outdir_fname and all parent directories. Equivalent to <tt>mkdir -p</tt>.
610 * @param outdir_fname The directory to create.
611 * @return The return value of @c mkdir.
612 */
613int make_hole_for_dir(const char *outdir_fname)
614{
615    char *tmp = NULL;
616    int res = 0;
617
618    assert_string_is_neither_NULL_nor_zerolength(outdir_fname);
619    mr_asprintf(tmp, "mkdir -p %s", outdir_fname);
620    res = system(tmp);
621    mr_free(tmp);
622    return(res);
623}
624
625
626/**
627 * Create the parent directories of @p outfile_fname.
628 * @param outfile_fname The file to make a "hole" for.
629 * @return 0, always.
630 * @bug Return value unnecessary.
631 */
632int make_hole_for_file(char *outfile_fname)
633{
634    /*@ buffer ****************************************************** */
635    char *command = NULL;
636
637    /*@ int  ******************************************************** */
638    int res = 0;
639
640    /*@ end vars *************************************************** */
641
642    assert_string_is_neither_NULL_nor_zerolength(outfile_fname);
643    assert(!strstr(outfile_fname, MNT_CDROM));
644    assert(!strstr(outfile_fname, "/dev/cdrom"));
645    mr_asprintf(command, "mkdir -p \"%s\" 2> /dev/null", outfile_fname);
646    res += system(command);
647    mr_free(command);
648
649    mr_asprintf(command, "rmdir \"%s\" 2> /dev/null", outfile_fname);
650    res += system(command);
651    mr_free(command);
652
653    mr_asprintf(command, "rm -f \"%s\" 2> /dev/null", outfile_fname);
654    res += system(command);
655    mr_free(command);
656
657    unlink(outfile_fname);
658    return(0);
659}
660
661
662/**
663 * Get the number of lines in @p filelist_fname that contain the string @p wildcard.
664 * @param filelist_fname The file to search through.
665 * @param wildcard The string to search for. This is @e not a shell glob or a regular expression.
666 * @return The number of lines matched.
667 */
668long noof_lines_that_match_wildcard(char *filelist_fname, char *wildcard)
669{
670    /*@ long ******************************************************* */
671    long matches = 0;
672
673    /*@ pointers *************************************************** */
674    FILE *fin;
675
676    /*@ buffers **************************************************** */
677    char *incoming = NULL;
678
679    /*@ end vars *************************************************** */
680
681
682    fin = fopen(filelist_fname, "r");
683
684    if (!fin) {
685        log_OS_error("Unable to openin filelist_fname");
686        return(0);
687    }
688    mr_getline(incoming, fin);
689    while (!feof(fin)) {
690        if (strstr(incoming, wildcard)) {
691            matches++;
692        }
693        mr_free(incoming);
694        mr_getline(incoming, fin);
695    }
696    mr_free(incoming);
697    paranoid_fclose(fin);
698    return(matches);
699}
700
701
702
703/**
704 * Determine the size (in KB) of @p dev in the mountlist in <tt>tmpdir</tt>/mountlist.txt.
705 * @param tmpdir The tempdir where the mountlist is stored.
706 * @param dev The device to search for.
707 * @return The size of the partition in KB.
708 */
709long size_of_partition_in_mountlist_K(char *tmpdir, char *dev)
710{
711    char *command = NULL;
712    char *mountlist = NULL;
713    char *sz_res = NULL;
714    long file_len_K;
715
716    mr_asprintf(mountlist, "%s/mountlist.txt", tmpdir);
717    mr_asprintf(command, "grep \"%s \" %s/mountlist.txt | head -n1 | awk '{print $4}'", dev, tmpdir);
718    mr_free(mountlist);
719
720    log_it(command);
721    mr_asprintf(sz_res, "%s", call_program_and_get_last_line_of_output(command));
722    file_len_K = atol(sz_res);
723    log_msg(4, "%s --> %s --> %ld", command, sz_res, file_len_K);
724    mr_free(sz_res);
725    mr_free(command);
726
727    return(file_len_K);
728}
729
730/**
731 * Calculate the total size (in KB) of all the biggiefiles in this backup.
732 * @param bkpinfo The backup information structure. Only the @c bkpinfo->tmpdir field is used.
733 * @return The total size of all biggiefiles in KB.
734 */
735long size_of_all_biggiefiles_K()
736{
737    /*@ buffers ***************************************************** */
738    char *fname = NULL;
739    char *biggielist = NULL;
740    char *tmp = NULL;
741    char *command = NULL;
742
743    /*@ long ******************************************************** */
744    long scratchL = 0;
745    long file_len_K;
746
747    /*@ pointers *************************************************** */
748    FILE *fin = NULL;
749
750    /*@ end vars *************************************************** */
751
752    log_it("Calculating size of all biggiefiles (in total)");
753    mr_asprintf(biggielist, "%s/biggielist.txt", bkpinfo->tmpdir);
754    log_it("biggielist = %s", biggielist);
755    fin = fopen(biggielist, "r");
756    mr_free(biggielist);
757
758    if (!(fin)) {
759        log_OS_error("Cannot open biggielist. OK, so estimate is based on filesets only.");
760    } else {
761        log_msg(4, "Reading it...");
762        for (mr_getline(fname, fin); !feof(fin); mr_getline(fname, fin)) {
763            if (fname[strlen(fname) - 1] <= 32) {
764                fname[strlen(fname) - 1] = '\0';
765            }
766            if (0 == strncmp(fname, "/dev/", 5)) {
767                if (is_dev_an_NTFS_dev(fname)) {
768                    if ( !find_home_of_exe("ntfsresize")) {
769                        mr_free(tmp);
770                        mr_free(fname);
771                        fatal_error("ntfsresize not found");
772                    }
773                    mr_free(tmp);
774
775                    mr_asprintf(command, "ntfsresize --force --info %s|grep '^You might resize at '|cut -d' ' -f5", fname);
776                    log_it("command = %s", command);
777                    mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
778                    mr_free(command);
779
780                    log_it("res of it = %s", tmp);
781                    file_len_K = atoll(tmp) / 1024L;
782                    mr_free(tmp);
783                } else {
784                    file_len_K = get_phys_size_of_drive(fname) * 1024L;
785                }
786            } else {
787                /* BERLIOS: more than long here ??? */
788                file_len_K = (long) (length_of_file(fname) / 1024);
789            }
790            if (file_len_K > 0) {
791                scratchL += file_len_K;
792                log_msg(4, "%s --> %ld K", fname, file_len_K);
793            }
794            log_msg(4, "After adding %s, scratchL+%ld now equals %ld", fname, file_len_K, scratchL);
795            if (feof(fin)) {
796                break;
797            }
798            mr_free(fname);
799        }
800        mr_free(fname);
801    }
802    log_it("Closing...");
803    paranoid_fclose(fin);
804    log_it("Finished calculating total size of all biggiefiles");
805    log_it("Total size of all biggiefiles = %ld Kb", scratchL);
806    return(scratchL);
807}
808
809/**
810 * Determine the amount of space (in KB) occupied by a mounted CD.
811 * This can also be used to find the space used for other directories.
812 * @param mountpt The mountpoint/directory to check.
813 * @return The amount of space occupied in KB.
814 */
815long long space_occupied_by_cd(char *mountpt)
816{
817    /*@ buffer ****************************************************** */
818    char *tmp = NULL;
819    char *command = NULL;
820    long long llres;
821    /*@ pointers **************************************************** */
822    char *p;
823    FILE *fin;
824
825    /*@ end vars *************************************************** */
826
827    mr_asprintf(command, "du -sk %s", mountpt);
828    errno = 0;
829    fin = popen(command, "r");
830    if (errno) {
831      log_it("popen() FAILED: command=%s, mountpt=%s, fin=%d, errno=%d, strerror=%s", command, mountpt, fin, errno, strerror(errno));
832      llres = 0;
833    } else {
834      mr_getline(tmp, fin);
835      paranoid_pclose(fin);
836      p = strchr(tmp, '\t');
837      if (p) {
838        *p = '\0';
839      }
840      for (p = tmp, llres = 0; *p != '\0'; p++) {
841        llres *= 10;
842        llres += (int) (*p - '0');
843      }
844      mr_free(tmp);
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.org 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    res = 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    res = 0;
978    return(res);
979}
980
981
982
983
984
985
986/**
987 * Copy the files that Mondo/Mindi need to run to the scratchdir or tempdir.
988 * Currently this includes: copy Mondo's home directory to scratchdir, untar "mondo_home/payload.tgz"
989 * if it exists, copy LAST-FILELIST-NUMBER to scratchdir, copy mondorestore
990 * and post-nuke.tgz (if it exists) to tmpdir, and run "hostname > scratchdir/HOSTNAME".
991 * @param bkpinfo The backup information structure. Fields used:
992 * - @c bkpinfo->postnuke_tarball
993 * - @c bkpinfo->scratchdir
994 * - @c bkpinfo->tmpdir
995 */
996void copy_mondo_and_mindi_stuff_to_scratchdir()
997{
998    /*@ Char buffers ** */
999    char *command = NULL;
1000    char *tmp = NULL;
1001    char old_pwd[MAX_STR_LEN];
1002    int res = 0;
1003
1004    mvaddstr_and_log_it(g_currentY, 0, "Copying Mondo's core files to the scratch directory");
1005
1006    log_msg(4, "g_mondo_home='%s'", g_mondo_home);
1007    if (strlen(g_mondo_home) < 2) {
1008        find_and_store_mondoarchives_home(g_mondo_home);
1009    }
1010    mr_asprintf(command, CP_BIN " --parents -pRdf %s %s", g_mondo_home, bkpinfo->scratchdir);
1011
1012    log_msg(4, "command = %s", command);
1013    res = run_program_and_log_output(command, 1);
1014    mr_free(command);
1015
1016    if (res) {
1017        fatal_error("Failed to copy Mondo's stuff to scratchdir");
1018    }
1019
1020    mr_asprintf(tmp, "%s/payload.tgz", g_mondo_home);
1021    if (does_file_exist(tmp)) {
1022        log_it("Untarring payload %s to scratchdir %s", tmp, bkpinfo->scratchdir);
1023        if (getcwd(old_pwd, MAX_STR_LEN - 1)) {
1024            // FIXME
1025        }
1026        if (chdir(bkpinfo->scratchdir)) {
1027            // FIXME
1028        }
1029        mr_asprintf(command, "tar -zxvf %s", tmp);
1030        res = run_program_and_log_output(command, FALSE);
1031        if (res) {
1032            mr_free(command);
1033            mr_free(tmp);
1034            fatal_error("Failed to untar payload");
1035        }
1036        mr_free(command);
1037        if (chdir(old_pwd)) {
1038            // FIXME
1039        }
1040    }
1041    mr_free(tmp);
1042
1043    mr_asprintf(command, "cp -f %s/LAST-FILELIST-NUMBER %s", bkpinfo->tmpdir, bkpinfo->scratchdir);
1044
1045    if (run_program_and_log_output(command, FALSE)) {
1046        fatal_error("Failed to copy LAST-FILELIST-NUMBER to scratchdir");
1047    }
1048    mr_free(command);
1049
1050    mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("which mondorestore"));
1051    if (!tmp[0]) {
1052        mr_free(tmp);
1053        fatal_error("'which mondorestore' returned null. Where's your mondorestore? `which` can't find it. That's odd. Did you install mondorestore?");
1054    }
1055
1056    mr_asprintf(command, "cp -f %s %s", tmp, bkpinfo->tmpdir);
1057    mr_free(tmp);
1058    res = run_program_and_log_output(command, FALSE);
1059    if (res) {
1060        mr_free(command);
1061        fatal_error("Failed to copy mondorestore to tmpdir");
1062    }
1063    mr_free(command);
1064
1065    mr_asprintf(command, "hostname > %s/HOSTNAME", bkpinfo->scratchdir);
1066    paranoid_system(command);
1067    mr_free(command);
1068
1069    if (bkpinfo->postnuke_tarball[0]) {
1070        mr_asprintf(command, "cp -f %s %s/post-nuke.tgz", bkpinfo->postnuke_tarball, bkpinfo->tmpdir);
1071        res = run_program_and_log_output(command, FALSE);
1072        mr_free(command);
1073
1074        if (res) {
1075            fatal_error("Unable to copy post-nuke tarball to tmpdir");
1076        }
1077    }
1078
1079    mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1080}
1081
1082
1083/**
1084 * Store the client's NETFS configuration in files to be restored at restore-time.
1085 * Assumes that @c bkpinfo->media_type = netfs, but does not check for this.
1086 * @param bkpinfo The backup information structure. Fields used:
1087 * - @c netfs_mount
1088 * - @c netfs_remote_dir
1089 * - @c tmpdir
1090 */
1091void store_netfs_config()
1092{
1093
1094    /*@ buffers ******** */
1095    char *netfs_dev = NULL;
1096    char *netfs_client_hwaddr = NULL;
1097    char *netfs_mount = NULL;
1098    char *netfs_client_ipaddr = NULL;
1099    char *netfs_client_netmask = NULL;
1100    char *netfs_client_broadcast = NULL;
1101    char *netfs_client_defgw = NULL;
1102    char *netfs_server_ipaddr = NULL;
1103    char *tmp = NULL;
1104    char *command = NULL;
1105
1106    /*@ pointers ***** */
1107    char *p;
1108
1109    if (bkpinfo->netfs_mount == NULL) {
1110        fatal_error("No netfs_mount found !");
1111    }
1112
1113    log_it("Storing Network configuration");
1114
1115    /********
1116    * If the Network device found above is a bonded device,
1117    * we need to replace it with an ethN device or the
1118    * networking will not start during an Network restore.
1119    *
1120    * If the Network device in netfs_dev begins with the word "bond", or alb or aft
1121    * look for the corresponding slave ethN device and copy it to netfs_dev.
1122    * Using the common MAC address
1123    ********/
1124    if (!strncmp(netfs_dev, "bond", 4) || !strncmp(netfs_dev, "alb", 3) || !strncmp(netfs_dev, "aft", 3)) {
1125        log_to_screen("Found bonding device %s; looking for corresponding ethN slave device\n", netfs_dev);
1126        mr_asprintf(command, "ifconfig | grep -E '%s' | grep -v '%s' | head -n1 | cut -d' ' -f1",netfs_client_hwaddr,netfs_dev);
1127        mr_asprintf(netfs_dev, "%s", call_program_and_get_last_line_of_output(command));
1128        mr_free(command);
1129        log_to_screen("Replacing it with %s\n", netfs_dev);
1130    }
1131
1132    log_it("Finished storing Network configuration");
1133}
1134
1135
1136/**
1137 * Determine the approximate number of media that the backup will take up,
1138 * and tell the user. The uncompressed size is estimated as size_of_all_biggiefiles_K()
1139 * plus (noof_sets x bkpinfo->optimal_set_size). The compression factor is estimated as
1140 * 2/3 for LZO and 1/2 for bzip2. The data is not saved anywhere. If there are any
1141 * "imagedevs", the estimate is not shown as it will be wildly inaccurate.
1142 * If there are more than 50 media estimated, the estimate will not be shown.
1143 * @param bkpinfo The backup information structure. Fields used:
1144 * - @c bkpinfo->backup_media_type
1145 * - @c bkpinfo->image_devs
1146 * - @c bkpinfo->media_size
1147 * - @c bkpinfo->optimal_set_size
1148 * - @c bkpinfo->use_lzo
1149 * @param noof_sets The number of filesets created.
1150 * @ingroup archiveGroup
1151 */
1152void
1153estimate_noof_media_required(long noof_sets)
1154{
1155    /*@ buffers *************** */
1156    char *tmp = NULL;
1157    char *mds = NULL;
1158
1159    /*@ long long ************* */
1160    long long scratchLL;
1161
1162    if (bkpinfo->media_size <= 0) {
1163        log_to_screen("Number of media required: UNKNOWN");
1164        return;
1165    }
1166
1167    log_it("Estimating number of media required...");
1168    scratchLL = (long long) (noof_sets) * (long long) (bkpinfo->optimal_set_size) + (long long) (size_of_all_biggiefiles_K());
1169    scratchLL = (scratchLL / 1024) / bkpinfo->media_size;
1170    scratchLL++;
1171    if (bkpinfo->use_lzo) {
1172        scratchLL = (scratchLL * 2) / 3;
1173    } else if (bkpinfo->use_gzip) {
1174        scratchLL = (scratchLL * 2) / 3;
1175    } else if (bkpinfo->use_lzma) {
1176        scratchLL = (scratchLL * 2) / 3;
1177    } else {
1178        scratchLL = scratchLL / 2;
1179    }
1180    if (!scratchLL) {
1181        scratchLL++;
1182    }
1183    if (scratchLL <= 1) {
1184        mds = media_descriptor_string(bkpinfo->backup_media_type);
1185        mr_asprintf(tmp, "Your backup will probably occupy a single %s. Maybe two.", mds);
1186        mr_free(mds);
1187    } else if (scratchLL > 4) {
1188        mr_asprintf(tmp, "Your backup will occupy one meeeeellion media! (maybe %s)", number_to_text((int) (scratchLL + 1)));
1189    } else {
1190        mr_asprintf(tmp, "Your backup will occupy approximately %s media.", number_to_text((int) (scratchLL + 1)));
1191    }
1192    if (scratchLL < 50) {
1193        log_to_screen(tmp);
1194    }
1195    mr_free(tmp);
1196}
1197
1198
1199/**
1200 * Determine whether a file is compressed. This is done
1201 * by reading through the "do-not-compress-these" file distributed with Mondo.
1202 * @param filename The file to check.
1203 * @return TRUE if it's compressed, FALSE if not.
1204 */
1205bool is_this_file_compressed(char *filename)
1206{
1207    char *do_not_compress_these = NULL;
1208    char *tmp = NULL;
1209    char *p;
1210    char *q = NULL;
1211
1212    q = strrchr(filename, '.');
1213    if (q == NULL) {
1214        return (FALSE);
1215    }
1216
1217    mr_asprintf(tmp, "%s/do-not-compress-these", g_mondo_home);
1218    if (!does_file_exist(tmp)) {
1219        mr_free(tmp);
1220        return (FALSE);
1221    }
1222    /* BERLIOS: This is just plain WRONG !! */
1223    mr_asprintf(do_not_compress_these,"%s", last_line_of_file(tmp));
1224    mr_free(tmp);
1225
1226    for (p = do_not_compress_these; p != NULL; p++) {
1227        mr_asprintf(tmp, "%s", p);
1228        if (strchr(tmp, ' ')) {
1229            *(strchr(tmp, ' ')) = '\0';
1230        }
1231        if (!strcmp(q, tmp)) {
1232            mr_free(tmp);
1233            mr_free(do_not_compress_these);
1234            return (TRUE);
1235        }
1236        if (!(p = strchr(p, ' '))) {
1237            break;
1238        }
1239        mr_free(tmp);
1240    }
1241    mr_free(do_not_compress_these);
1242    return (FALSE);
1243}
1244
1245/* @} - end fileGroup */
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