source: MondoRescue/branches/2.2.10/mondo/src/common/libmondo-files.c @ 2334

Last change on this file since 2334 was 2334, checked in by Bruno Cornec, 11 years ago

r3369@localhost: bruno | 2009-08-18 16:57:27 +0200

  • Transform bout 100 strcpy in dyn. allocation. Quality is improving
  • function figure_out_kernel_path_interactively_if_necessary now return a dynamically allocated string
  • mondoarchive checked with valgrind in text an newt modes
  • Property svn:keywords set to Id
File size: 36.1 KB
Line 
1/* file manipulation
2   $Id: libmondo-files.c 2334 2009-08-18 15:28:18Z 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 2334 2009-08-18 15:28:18Z 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;
425
426    /*@ int's ******************************************************* */
427    int i;
428
429    for (i = NOOF_ERR_LINES - 1;
430         i >= 0 && !strstr(err_log_lines[i], "% Done")
431         && !strstr(err_log_lines[i], "% done"); i--);
432    if (i < 0) {
433        mr_asprintf(command, "tail -n3 %s | grep -Fi \"%c\" | tail -n1 | awk '{print $0;}'", filename, '%');
434        mr_asprintf(lastline, "%s", call_program_and_get_last_line_of_output(command));
435        mr_free(command);
436        if (!lastline[0]) {
437            mr_free(lastline);
438            return (0);
439        }
440    } else {
441        mr_asprintf(lastline, "%s", err_log_lines[i]);
442    }
443
444    p = strrchr(lastline, '%');
445    if (p) {
446        *p = '\0';
447    }
448    if (!p) {
449        mr_free(lastline);
450        return (0);
451    }
452    *p = '\0';
453    for (p--; *p != ' ' && p != lastline; p--);
454    if (p != lastline) {
455        p++;
456    }
457    mr_free(lastline);
458
459    i = atoi(p);
460    return (i);
461}
462
463
464
465
466
467/**
468 * Return the last line of @p filename.
469 * @param filename The file to get the last line of.
470 * @return The last line of the file.
471 * @note The returned string points to static storage that will be overwritten with each call.
472 */
473char *last_line_of_file(char *filename)
474{
475    /*@ buffers ***************************************************** */
476    static char output[MAX_STR_LEN];
477    char *command = NULL;
478
479    /*@ pointers **************************************************** */
480    FILE *fin;
481
482    /*@ end vars **************************************************** */
483
484    if (!does_file_exist(filename)) {
485        log_it("Tring to get last line of nonexistent file (%s)", filename);
486        output[0] = '\0';
487        return (output);
488    }
489    mr_asprintf(command, "tail -n1 %s", filename);
490    fin = popen(command, "r");
491    mr_free(command);
492
493    (void) fgets(output, MAX_STR_LEN, fin);
494    paranoid_pclose(fin);
495    while (strlen(output) > 0 && output[strlen(output) - 1] < 32) {
496        output[strlen(output) - 1] = '\0';
497    }
498    return (output);
499}
500
501/**
502 * Get the length of @p filename in bytes.
503 * @param filename The file to get the length of.
504 * @return The length of the file, or -1 for error.
505 */
506off_t length_of_file(char *filename)
507{
508    /*@ pointers *************************************************** */
509    FILE *fin;
510
511    /*@ long long ************************************************* */
512    off_t length;
513
514    fin = fopen(filename, "r");
515    if (!fin) {
516        log_it("filename=%s", filename);
517        log_OS_error("Unable to openin filename");
518        return (-1);
519    }
520    fseeko(fin, 0, SEEK_END);
521    length = ftello(fin);
522    paranoid_fclose(fin);
523    return (length);
524}
525
526
527
528/**
529 * ?????
530 * @bug I don't know what this function does. However, it seems orphaned, so it should probably be removed.
531 */
532int
533make_checksum_list_file(char *filelist, char *cksumlist, char *comppath)
534{
535    /*@ pointers **************************************************** */
536    FILE *fin;
537    FILE *fout;
538
539    /*@ int   ******************************************************* */
540    int percentage;
541    int i;
542    int counter = 0;
543
544    /*@ buffer ****************************************************** */
545    char stub_fname[1000];
546    char curr_fname[1000];
547    char *curr_cksum = NULL;
548    char *tmp = NULL;
549
550    /*@ long [long] ************************************************* */
551    off_t filelist_length;
552    off_t curr_pos;
553    long start_time;
554    long current_time;
555    long time_taken;
556    long time_remaining;
557
558    /*@ end vars *************************************************** */
559
560    start_time = get_time();
561    filelist_length = length_of_file(filelist);
562    log_it("filelist = %s; cksumlist = %s", filelist, cksumlist);
563
564    fin = fopen(filelist, "r");
565    if (fin == NULL) {
566        log_OS_error("Unable to fopen-in filelist");
567        log_to_screen("Can't open filelist");
568        return (1);
569    }
570    fout = fopen(cksumlist, "w");
571    if (fout == NULL) {
572        log_OS_error("Unable to openout cksumlist");
573        paranoid_fclose(fin);
574        log_to_screen("Can't open checksum list");
575        return (1);
576    }
577    for (fgets(stub_fname, 999, fin); !feof(fin);
578         fgets(stub_fname, 999, fin)) {
579        if (stub_fname[(i = strlen(stub_fname) - 1)] < 32) {
580            stub_fname[i] = '\0';
581        }
582        mr_asprintf(tmp, "%s%s", comppath, stub_fname);
583        strcpy(curr_fname, tmp + 1);
584        mr_free(tmp);
585
586        mr_asprintf(curr_cksum, "%s", calc_file_ugly_minichecksum(curr_fname));
587        fprintf(fout, "%s\t%s\n", curr_fname, curr_cksum);
588        mr_free(curr_cksum);
589
590        if (counter++ > 12) {
591            current_time = get_time();
592            counter = 0;
593            curr_fname[37] = '\0';
594            curr_pos = ftello(fin) / 1024;
595            percentage = (int) (curr_pos * 100 / filelist_length);
596            time_taken = current_time - start_time;
597            if (percentage == 0) {
598                /*              printf("%0d%% done      \r",percentage); */
599            } else {
600                time_remaining = time_taken * 100 / (long) (percentage) - time_taken;
601                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);
602            }
603            sync();
604        }
605    }
606    paranoid_fclose(fout);
607    paranoid_fclose(fin);
608    log_it("Done.");
609    return (0);
610}
611
612
613/**
614 * Create the directory @p outdir_fname and all parent directories. Equivalent to <tt>mkdir -p</tt>.
615 * @param outdir_fname The directory to create.
616 * @return The return value of @c mkdir.
617 */
618int make_hole_for_dir(const char *outdir_fname)
619{
620    char *tmp = NULL;
621    int res = 0;
622
623    assert_string_is_neither_NULL_nor_zerolength(outdir_fname);
624    mr_asprintf(tmp, "mkdir -p %s", outdir_fname);
625    res = system(tmp);
626    mr_free(tmp);
627    return (res);
628}
629
630
631/**
632 * Create the parent directories of @p outfile_fname.
633 * @param outfile_fname The file to make a "hole" for.
634 * @return 0, always.
635 * @bug Return value unnecessary.
636 */
637int make_hole_for_file(char *outfile_fname)
638{
639    /*@ buffer ****************************************************** */
640    char *command = NULL;
641
642    /*@ int  ******************************************************** */
643    int res = 0;
644
645    /*@ end vars *************************************************** */
646
647    assert_string_is_neither_NULL_nor_zerolength(outfile_fname);
648    assert(!strstr(outfile_fname, MNT_CDROM));
649    assert(!strstr(outfile_fname, "/dev/cdrom"));
650    mr_asprintf(command, "mkdir -p \"%s\" 2> /dev/null", outfile_fname);
651    res += system(command);
652    mr_free(command);
653
654    mr_asprintf(command, "rmdir \"%s\" 2> /dev/null", outfile_fname);
655    res += system(command);
656    mr_free(command);
657
658    mr_asprintf(command, "rm -f \"%s\" 2> /dev/null", outfile_fname);
659    res += system(command);
660    mr_free(command);
661
662    unlink(outfile_fname);
663    return (0);
664}
665
666
667
668
669/**
670 * Get the number of lines in @p filelist_fname that contain the string @p wildcard.
671 * @param filelist_fname The file to search through.
672 * @param wildcard The string to search for. This is @e not a shell glob or a regular expression.
673 * @return The number of lines matched.
674 */
675long noof_lines_that_match_wildcard(char *filelist_fname, char *wildcard)
676{
677    /*@ long ******************************************************* */
678    long matches = 0;
679
680    /*@ pointers *************************************************** */
681    FILE *fin;
682
683    /*@ buffers **************************************************** */
684    char incoming[MAX_STR_LEN];
685
686    /*@ end vars *************************************************** */
687
688
689    fin = fopen(filelist_fname, "r");
690
691    if (!fin) {
692        log_OS_error("Unable to openin filelist_fname");
693        return (0);
694    }
695    (void) fgets(incoming, MAX_STR_LEN - 1, fin);
696    while (!feof(fin)) {
697        if (strstr(incoming, wildcard)) {
698            matches++;
699        }
700        (void) fgets(incoming, MAX_STR_LEN - 1, fin);
701    }
702    paranoid_fclose(fin);
703    return (matches);
704}
705
706
707
708/**
709 * Determine the size (in KB) of @p dev in the mountlist in <tt>tmpdir</tt>/mountlist.txt.
710 * @param tmpdir The tempdir where the mountlist is stored.
711 * @param dev The device to search for.
712 * @return The size of the partition in KB.
713 */
714long size_of_partition_in_mountlist_K(char *tmpdir, char *dev)
715{
716    char *command = NULL;
717    char *mountlist = NULL;
718    char *sz_res = NULL;
719    long file_len_K;
720
721    mr_asprintf(mountlist, "%s/mountlist.txt", tmpdir);
722    mr_asprintf(command, "grep \"%s \" %s/mountlist.txt | head -n1 | awk '{print $4}'", dev, tmpdir);
723    mr_free(mountlist);
724
725    log_it(command);
726    mr_asprintf(sz_res, "%s", call_program_and_get_last_line_of_output(command));
727    file_len_K = atol(sz_res);
728    log_msg(4, "%s --> %s --> %ld", command, sz_res, file_len_K);
729    mr_free(sz_res);
730    mr_free(command);
731
732    return (file_len_K);
733}
734
735/**
736 * Calculate the total size (in KB) of all the biggiefiles in this backup.
737 * @param bkpinfo The backup information structure. Only the @c bkpinfo->tmpdir field is used.
738 * @return The total size of all biggiefiles in KB.
739 */
740long size_of_all_biggiefiles_K()
741{
742    /*@ buffers ***************************************************** */
743    char *fname;
744    char *biggielist = NULL;
745    char *tmp = NULL;
746    char *command = NULL;
747
748    /*@ long ******************************************************** */
749    long scratchL = 0;
750    long file_len_K;
751
752    /*@ pointers *************************************************** */
753    FILE *fin = NULL;
754
755    /*@ end vars *************************************************** */
756
757    malloc_string(fname);
758    log_it("Calculating size of all biggiefiles (in total)");
759    mr_asprintf(biggielist, "%s/biggielist.txt", bkpinfo->tmpdir);
760    log_it("biggielist = %s", biggielist);
761    fin = fopen(biggielist, "r");
762    mr_free(biggielist);
763
764    if (!(fin)) {
765        log_OS_error("Cannot open biggielist. OK, so estimate is based on filesets only.");
766    } else {
767        log_msg(4, "Reading it...");
768        for (fgets(fname, MAX_STR_LEN, fin); !feof(fin);
769             fgets(fname, MAX_STR_LEN, fin)) {
770            if (fname[strlen(fname) - 1] <= 32) {
771                fname[strlen(fname) - 1] = '\0';
772            }
773            if (0 == strncmp(fname, "/dev/", 5)) {
774                if (is_dev_an_NTFS_dev(fname)) {
775                    tmp = find_home_of_exe("ntfsresize");
776                    if (!tmp) {
777                        mr_free(tmp);
778                        fatal_error("ntfsresize not found");
779                    }
780                    mr_free(tmp);
781
782                    mr_asprintf(command, "ntfsresize --force --info %s|grep '^You might resize at '|cut -d' ' -f5", fname);
783                    log_it("command = %s", command);
784                    mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output(command));
785                    mr_free(command);
786
787                    log_it("res of it = %s", tmp);
788                    file_len_K = atoll(tmp) / 1024L;
789                    mr_free(tmp);
790                } else {
791                    file_len_K = get_phys_size_of_drive(fname) * 1024L;
792                }
793            } else {
794                /* BERLIOS: more than long here ??? */
795                file_len_K = (long) (length_of_file(fname) / 1024);
796            }
797            if (file_len_K > 0) {
798                scratchL += file_len_K;
799                log_msg(4, "%s --> %ld K", fname, file_len_K);
800            }
801            log_msg(4, "After adding %s, scratchL+%ld now equals %ld", fname, file_len_K, scratchL);
802            if (feof(fin)) {
803                break;
804            }
805        }
806    }
807    log_it("Closing...");
808    paranoid_fclose(fin);
809    log_it("Finished calculating total size of all biggiefiles");
810    paranoid_free(fname);
811    return (scratchL);
812}
813
814/**
815 * Determine the amount of space (in KB) occupied by a mounted CD.
816 * This can also be used to find the space used for other directories.
817 * @param mountpt The mountpoint/directory to check.
818 * @return The amount of space occupied in KB.
819 */
820long long space_occupied_by_cd(char *mountpt)
821{
822    /*@ buffer ****************************************************** */
823    char tmp[MAX_STR_LEN];
824    char *command = NULL;
825    long long llres;
826    /*@ pointers **************************************************** */
827    char *p;
828    FILE *fin;
829
830    /*@ end vars *************************************************** */
831
832    mr_asprintf(command, "du -sk %s", mountpt);
833    errno = 0;
834    fin = popen(command, "r");
835    if (errno) {
836      log_it("popen() FAILED: command=%s, mountpt=%s, fin=%d, errno=%d, strerror=%s", command, mountpt, fin, errno, strerror(errno));
837      llres = 0;
838    } else {
839      (void) fgets(tmp, MAX_STR_LEN, fin);
840      paranoid_pclose(fin);
841      p = strchr(tmp, '\t');
842      if (p) {
843        *p = '\0';
844      }
845      for (p = tmp, llres = 0; *p != '\0'; p++) {
846        llres *= 10;
847        llres += (int) (*p - '0');
848      }
849    }
850    mr_free(command);
851
852    return (llres);
853}
854
855
856/**
857 * Update a CRC checksum to include another character.
858 * @param crc The original CRC checksum.
859 * @param c The character to add.
860 * @return The new CRC checksum.
861 * @ingroup utilityGroup
862 */
863unsigned int updcrc(unsigned int crc, unsigned int c)
864{
865    unsigned int tmp;
866    tmp = (crc >> 8) ^ c;
867    crc = (crc << 8) ^ crctttab[tmp & 255];
868    return crc;
869}
870
871/**
872 * Update a reverse CRC checksum to include another character.
873 * @param crc The original CRC checksum.
874 * @param c The character to add.
875 * @return The new CRC checksum.
876 * @ingroup utilityGroup
877 */
878unsigned int updcrcr(unsigned int crc, unsigned int c)
879{
880    unsigned int tmp;
881    tmp = crc ^ c;
882    crc = (crc >> 8) ^ crc16tab[tmp & 0xff];
883    return crc;
884}
885
886
887
888
889/**
890 * Check for an executable on the user's system; write a message to the
891 * screen and the log if we can't find it.
892 * @param fname The executable basename to look for.
893 * @return 0 if it's found, nonzero if not.
894 */
895int whine_if_not_found(char *fname)
896{
897    /*@ buffers *** */
898    char *command = NULL;
899    int res = 0;
900
901    mr_asprintf(command, "which %s > /dev/null 2> /dev/null", fname);
902    res = system(command);
903    mr_free(command);
904
905    if (res) {
906        log_to_screen("Please install '%s'. I cannot find it on your system.", fname);
907        log_to_screen("There may be hyperlink at http://www.mondorescue.com which");
908        log_to_screen("will take you to the relevant (missing) package.");
909        return (1);
910    } else {
911        return (0);
912    }
913}
914
915
916
917
918
919
920/**
921 * Create a data file at @p fname containing @p contents.
922 * The data actually can be multiple lines, despite the name.
923 * @param fname The file to create.
924 * @param contents The data to put in it.
925 * @return 0 for success, 1 for failure.
926 */
927int write_one_liner_data_file(char *fname, char *contents)
928{
929    /*@ pointers *************************************************** */
930    FILE *fout;
931    int res = 0;
932
933    /*@ end vars *************************************************** */
934
935    assert_string_is_neither_NULL_nor_zerolength(fname);
936    if (!contents) {
937        log_it("%d: Warning - writing NULL to %s", __LINE__, fname);
938    }
939    if (!(fout = fopen(fname, "w"))) {
940        log_it("fname=%s");
941        log_OS_error("Unable to openout fname");
942        return (1);
943    }
944    fprintf(fout, "%s\n", contents);
945    paranoid_fclose(fout);
946    return (res);
947}
948
949
950
951/**
952 * Read @p fname into @p contents.
953 * @param fname The file to read.
954 * @param contents Where to put its contents.
955 * @return 0 for success, nonzero for failure.
956 */
957int read_one_liner_data_file(char *fname, char *contents)
958{
959    /*@ pointers *************************************************** */
960    FILE *fin;
961    int res = 0;
962    int i;
963
964    /*@ end vars *************************************************** */
965
966    assert_string_is_neither_NULL_nor_zerolength(fname);
967    if (!contents) {
968        log_it("%d: Warning - reading NULL from %s", __LINE__, fname);
969    }
970    if (!(fin = fopen(fname, "r"))) {
971        log_it("fname=%s", fname);
972        log_OS_error("Unable to openin fname");
973        return (1);
974    }
975    fscanf(fin, "%s\n", contents);
976    i = strlen(contents);
977    if (i > 0 && contents[i - 1] < 32) {
978        contents[i - 1] = '\0';
979    }
980    paranoid_fclose(fin);
981    return (res);
982}
983
984
985
986
987
988
989
990
991
992/**
993 * Copy the files that Mondo/Mindi need to run to the scratchdir or tempdir.
994 * Currently this includes: copy Mondo's home directory to scratchdir,
995 * copy LAST-FILELIST-NUMBER to scratchdir, copy mondorestore
996 * and post-nuke.tgz (if it exists) to tmpdir, and run "hostname > scratchdir/HOSTNAME".
997 * @param bkpinfo The backup information structure. Fields used:
998 * - @c bkpinfo->postnuke_tarball
999 * - @c bkpinfo->scratchdir
1000 * - @c bkpinfo->tmpdir
1001 */
1002void copy_mondo_and_mindi_stuff_to_scratchdir()
1003{
1004    /*@ Char buffers ** */
1005    char *command = NULL;
1006    char *tmp = NULL;
1007    int res = 0;
1008
1009    mvaddstr_and_log_it(g_currentY, 0, "Copying Mondo's core files to the scratch directory");
1010
1011    log_msg(4, "g_mondo_home='%s'", g_mondo_home);
1012    if (strlen(g_mondo_home) < 2) {
1013        find_and_store_mondoarchives_home(g_mondo_home);
1014    }
1015    mr_asprintf(command, CP_BIN " --parents -pRdf %s %s", g_mondo_home, bkpinfo->scratchdir);
1016
1017    log_msg(4, "command = %s", command);
1018    res = run_program_and_log_output(command, 1);
1019    mr_free(command);
1020
1021    if (res) {
1022        fatal_error("Failed to copy Mondo's stuff to scratchdir");
1023    }
1024
1025    mr_asprintf(command, "cp -f %s/LAST-FILELIST-NUMBER %s", bkpinfo->tmpdir, bkpinfo->scratchdir);
1026    res = run_program_and_log_output(command, FALSE);
1027    mr_free(command);
1028
1029    if (res) {
1030        fatal_error("Failed to copy LAST-FILELIST-NUMBER to scratchdir");
1031    }
1032
1033    mr_asprintf(tmp, "%s", call_program_and_get_last_line_of_output("which mondorestore"));
1034    if (!tmp[0]) {
1035        mr_free(tmp);
1036        fatal_error("'which mondorestore' returned null. Where's your mondorestore? `which` can't find it. That's odd. Did you install mondorestore?");
1037    }
1038    mr_asprintf(command, "cp -f %s %s", tmp, bkpinfo->tmpdir);
1039    mr_free(tmp);
1040
1041    res = run_program_and_log_output(command, FALSE);
1042    mr_free(command);
1043
1044    if (res) {
1045        fatal_error("Failed to copy mondorestore to tmpdir");
1046    }
1047
1048    mr_asprintf(command, "hostname > %s/HOSTNAME", bkpinfo->scratchdir);
1049    paranoid_system(command);
1050    mr_free(command);
1051
1052    if (bkpinfo->postnuke_tarball) {
1053        mr_asprintf(command, "cp -f %s %s/post-nuke.tgz", bkpinfo->postnuke_tarball, bkpinfo->tmpdir);
1054        res = run_program_and_log_output(command, FALSE);
1055        mr_free(command);
1056
1057        if (res) {
1058            fatal_error("Unable to copy post-nuke tarball to tmpdir");
1059        }
1060    }
1061
1062    mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1063}
1064
1065
1066
1067
1068
1069/**
1070 * Store the client's NFS configuration in files to be restored at restore-time.
1071 * Assumes that @c bkpinfo->media_type = nfs, but does not check for this.
1072 * @param bkpinfo The backup information structure. Fields used:
1073 * - @c nfs_mount
1074 * - @c nfs_remote_dir
1075 * - @c tmpdir
1076 */
1077void store_nfs_config()
1078{
1079
1080    /*@ buffers ******** */
1081    char *nfs_dev = NULL;
1082    char *mac_addr = NULL;
1083    char *nfs_mount = NULL;
1084    char *nfs_client_ipaddr = NULL;
1085    char *nfs_client_netmask = NULL;
1086    char *nfs_client_broadcast = NULL;
1087    char *nfs_client_defgw = NULL;
1088    char *nfs_server_ipaddr = NULL;
1089    char *tmp = NULL;
1090    char *command = NULL;
1091
1092    /*@ pointers ***** */
1093    char *p;
1094
1095    if (! bkpinfo->nfs_mount) {
1096        fatal_error("No nfs_mount found !");
1097    }
1098
1099    log_it("Storing NFS configuration");
1100    mr_asprintf(tmp, "%s", bkpinfo->nfs_mount);
1101    p = strchr(tmp, ':');
1102    if (!p) {
1103        fatal_error("NFS mount doesn't have a colon in it, e.g. 192.168.1.4:/home/nfs");
1104    }
1105    *(p++) = '\0';
1106    mr_asprintf(nfs_server_ipaddr, "%s", tmp);
1107    mr_asprintf(nfs_mount, "%s", p);
1108    mr_free(tmp);
1109
1110    /* BERLIOS : there is a bug #67 here as it only considers the first NIC */
1111    mr_asprintf(command, "ifconfig | tr '\n' '#' | sed s/##// | tr '#' ' ' | tr '' '\n' | head -n1 | cut -d' ' -f1");
1112    mr_asprintf(nfs_dev, "%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' ' -f7 | cut -d':' -f2");
1116    mr_asprintf(nfs_client_ipaddr, "%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' ' -f9 | cut -d':' -f2");
1120    mr_asprintf(nfs_client_netmask, "%s", call_program_and_get_last_line_of_output(command));
1121    mr_free(command);
1122
1123    mr_asprintf(command, "%s", "ifconfig | tr '\n' '#' | sed s/##// | tr '#' ' ' | tr '' '\\n' | head -n1 | tr -s '\t' ' ' | cut -d' ' -f8 | cut -d':' -f2");
1124    mr_asprintf(nfs_client_broadcast, "%s", call_program_and_get_last_line_of_output(command));
1125    mr_free(command);
1126
1127    mr_asprintf(command, "%s", "route -n | grep '^0.0.0.0' | awk '{print $2}'");
1128    mr_asprintf(nfs_client_defgw, "%s", call_program_and_get_last_line_of_output(command));
1129    mr_free(command);
1130
1131    if (strlen(nfs_dev) < 2) {
1132        fatal_error
1133            ("Unable to find ethN (eth0, eth1, ...) adapter via NFS mount you specified.");
1134    }
1135    /********
1136    * If the NFS device that found above is a bonded device,
1137    * we need to replace it with an ethN device or the
1138    * networking will not start during an NFS restore.
1139    *
1140    * If the NFS device in nfs_dev begins with the word "bond", or alb or aft
1141    * look for the corresponding slave ethN device and copy it to nfs_dev.
1142    * Using the common MAC address
1143    ********/
1144    if (!strncmp(nfs_dev, "bond", 4) || !strncmp(nfs_dev, "alb", 3) || !strncmp(nfs_dev, "aft", 3)) {
1145        log_to_screen("Found bonding device %s; looking for corresponding ethN slave device\n", nfs_dev);
1146        mr_asprintf(command, "%s", "ifconfig %s | awk '{print $5}' | head -n1", nfs_dev);
1147        mr_asprintf(mac_addr, "%s", call_program_and_get_last_line_of_output(command));
1148        mr_free(command);
1149
1150        mr_asprintf(command, "ifconfig | grep -E '%s' | grep -v '%s' | head -n1 | cut -d' ' -f1", mac_addr,nfs_dev);
1151        mr_free(mac_addr);
1152        mr_free(nfs_dev);
1153
1154        mr_asprintf(nfs_dev, "%s", call_program_and_get_last_line_of_output(command));
1155        mr_free(command);
1156
1157        log_to_screen("Replacing it with %s\n", nfs_dev);
1158    }
1159
1160    mr_asprintf(tmp, "%s/NFS-DEV", bkpinfo->tmpdir);
1161    write_one_liner_data_file(tmp, nfs_dev);
1162    mr_free(nfs_dev);
1163    mr_free(tmp);
1164
1165    mr_asprintf(tmp, "%s/NFS-CLIENT-IPADDR", bkpinfo->tmpdir);
1166    write_one_liner_data_file(tmp, nfs_client_ipaddr);
1167    mr_free(nfs_client_ipaddr);
1168    mr_free(tmp);
1169
1170    mr_asprintf(tmp, "%s/NFS-CLIENT-NETMASK", bkpinfo->tmpdir);
1171    write_one_liner_data_file(tmp, nfs_client_netmask);
1172    mr_free(nfs_client_netmask);
1173    mr_free(tmp);
1174
1175    mr_asprintf(tmp, "%s/NFS-CLIENT-BROADCAST", bkpinfo->tmpdir);
1176    write_one_liner_data_file(tmp, nfs_client_broadcast);
1177    mr_free(nfs_client_broadcast);
1178    mr_free(tmp);
1179
1180    mr_asprintf(tmp, "%s/NFS-CLIENT-DEFGW", bkpinfo->tmpdir);
1181    write_one_liner_data_file(tmp, nfs_client_defgw);
1182    mr_free(nfs_client_defgw);
1183    mr_free(tmp);
1184
1185    mr_asprintf(tmp, "%s/NFS-SERVER-IPADDR", bkpinfo->tmpdir);
1186    write_one_liner_data_file(tmp, nfs_server_ipaddr);
1187    mr_free(tmp);
1188    mr_free(nfs_server_ipaddr);
1189
1190    mr_asprintf(tmp, "%s/NFS-SERVER-MOUNT", bkpinfo->tmpdir);
1191    write_one_liner_data_file(tmp, bkpinfo->nfs_mount);
1192    mr_free(tmp);
1193    mr_free(nfs_mount);
1194
1195    mr_asprintf(tmp, "%s/NFS-SERVER-PATH", bkpinfo->tmpdir);
1196    write_one_liner_data_file(tmp, bkpinfo->nfs_remote_dir);
1197    mr_free(tmp);
1198
1199    mr_asprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
1200    write_one_liner_data_file(tmp, bkpinfo->prefix);
1201    mr_free(tmp);
1202
1203    log_it("Finished storing NFS configuration");
1204}
1205
1206
1207/**
1208 * Determine the approximate number of media that the backup will take up,
1209 * and tell the user. The uncompressed size is estimated as size_of_all_biggiefiles_K()
1210 * plus (noof_sets x bkpinfo->optimal_set_size). The compression factor is estimated as
1211 * 2/3 for LZO and 1/2 for bzip2. The data is not saved anywhere. If there are any
1212 * "imagedevs", the estimate is not shown as it will be wildly inaccurate.
1213 * If there are more than 50 media estimated, the estimate will not be shown.
1214 * @param bkpinfo The backup information structure. Fields used:
1215 * - @c bkpinfo->backup_media_type
1216 * - @c bkpinfo->image_devs
1217 * - @c bkpinfo->media_size
1218 * - @c bkpinfo->optimal_set_size
1219 * - @c bkpinfo->use_lzo
1220 * @param noof_sets The number of filesets created.
1221 * @ingroup archiveGroup
1222 */
1223void
1224estimate_noof_media_required(long noof_sets)
1225{
1226    /*@ buffers *************** */
1227    char *tmp = NULL;
1228    char *mds = NULL;
1229
1230    /*@ long long ************* */
1231    long long scratchLL;
1232
1233    if (bkpinfo->media_size[1] <= 0) {
1234        log_to_screen("Number of media required: UNKNOWN");
1235        return;
1236    }
1237
1238    log_it("Estimating number of media required...");
1239    scratchLL =
1240        (long long) (noof_sets) * (long long) (bkpinfo->optimal_set_size)
1241        + (long long) (size_of_all_biggiefiles_K());
1242    scratchLL = (scratchLL / 1024) / bkpinfo->media_size[1];
1243    scratchLL++;
1244    if (bkpinfo->use_lzo) {
1245        scratchLL = (scratchLL * 2) / 3;
1246    } else if (bkpinfo->use_gzip) {
1247        scratchLL = (scratchLL * 2) / 3;
1248    } else {
1249        scratchLL = scratchLL / 2;
1250    }
1251    if (!scratchLL) {
1252        scratchLL++;
1253    }
1254    if (scratchLL <= 1) {
1255        mds = media_descriptor_string(bkpinfo->backup_media_type);
1256        mr_asprintf(tmp, "Your backup will probably occupy a single %s. Maybe two.", mds);
1257        mr_free(mds);
1258    } else if (scratchLL > 4) {
1259        mr_asprintf(tmp, "Your backup will occupy one meeeeellion media! (maybe %s)", number_to_text((int) (scratchLL + 1)));
1260    } else {
1261        mr_asprintf(tmp, "Your backup will occupy approximately %s media.", number_to_text((int) (scratchLL + 1)));
1262    }
1263    if (scratchLL < 50) {
1264        log_to_screen(tmp);
1265    }
1266    mr_free(tmp);
1267}
1268
1269
1270/**
1271 * Determine whether a file is compressed. This is done
1272 * by reading through the "do-not-compress-these" file distributed with Mondo.
1273 * @param filename The file to check.
1274 * @return TRUE if it's compressed, FALSE if not.
1275 */
1276bool is_this_file_compressed(char *filename)
1277{
1278    char *do_not_compress_these = NULL;
1279    char *tmp = NULL;
1280    char *p;
1281    char *q = NULL;
1282
1283    q = strrchr(filename, '.');
1284    if (q == NULL) {
1285        return (FALSE);
1286    }
1287
1288    mr_asprintf(tmp, "%s/do-not-compress-these", g_mondo_home);
1289    if (!does_file_exist(tmp)) {
1290        mr_free(tmp);
1291        return (FALSE);
1292    }
1293    /* BERLIOS: This is just plain WRONG !! */
1294    mr_asprintf(do_not_compress_these, "%s", last_line_of_file(tmp));
1295    mr_free(tmp);
1296
1297    for (p = do_not_compress_these; p != NULL; p++) {
1298        mr_asprintf(tmp, "%s", p);
1299        if (strchr(tmp, ' ')) {
1300            *(strchr(tmp, ' ')) = '\0';
1301        }
1302        if (!strcmp(q, tmp)) {
1303            mr_free(tmp);
1304            mr_free(do_not_compress_these);
1305            return (TRUE);
1306        }
1307        if (!(p = strchr(p, ' '))) {
1308            break;
1309        }
1310        mr_free(tmp);
1311    }
1312    mr_free(do_not_compress_these);
1313    return (FALSE);
1314}
1315
1316
1317int mode_of_file(char *fname)
1318{
1319    struct stat buf;
1320
1321    if (lstat(fname, &buf)) {
1322        return (-1);
1323    }                           // error
1324    else {
1325        return (buf.st_mode);
1326    }
1327}
1328
1329
1330
1331
1332/**
1333 * Create a small script that mounts /boot, calls @c grub-install, and syncs the disks.
1334 * @param outfile Where to put the script.
1335 * @return 0 for success, 1 for failure.
1336 */
1337int make_grub_install_scriptlet(char *outfile)
1338{
1339    FILE *fout;
1340    char *tmp = NULL;
1341    int retval = 0;
1342
1343    if ((fout = fopen(outfile, "w"))) {
1344        fprintf(fout,
1345                "#!/bin/sh\n\nmount /boot > /dev/null 2> /dev/null\ngrub-install $@\nres=$?\nsync;sync;sync\nexit $res\n");
1346        paranoid_fclose(fout);
1347        log_msg(2, "Created %s", outfile);
1348        mr_asprintf(tmp, "chmod +x %s", outfile);
1349        paranoid_system(tmp);
1350        mr_free(tmp);
1351        retval = 0;
1352    } else {
1353        retval = 1;
1354    }
1355    return (retval);
1356}
1357
1358/* @} - end fileGroup */
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