source: branches/stable/mondo/mondo/common/libmondo-files.c @ 662

Last change on this file since 662 was 662, checked in by bcornec, 13 years ago

nfsmount parameter added to allow redeployment from another NFS server (in PXE mode)

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1/* libmondo-files.c                                  file manipulation
2   $Id: libmondo-files.c 662 2006-06-10 08:34:23Z bcornec $
3.
4
5
604/16/04
7- find_home_of_exe() really does return NULL now if file not found
8
903/22/04
10- added mode_of_file()
11
1210/02/03
13- cleaned up grab_percentage_from_last_line_of_file()
14
1509/18
16- added int make_grub_install_scriptlet()
17
1809/16
19- cleaned up mkisofs feedback window
20
2109/12
22- fixed Teuton-hostile bug in size_of_all_biggiefiles_K()
23
2409/05
25- added size_of_partition_in_mountlist_K()
26- size_of_all_biggiefiles_K() now calls get_phys_size_of_drive(fname)
27
2807/02
29- fixed calls to popup_and_get_string()
30
3105/19
32- added CP_BIN
33
3405/05
35- added Joshua Oreman's FreeBSD patches
36
3705/04
38- find_home_of_exe() now returns NULL if file not found
39
4004/26
41- if >4 media est'd, say one meeeellion
42
4304/25
44- fixed minor bug in find_home_of_exe()
45
4604/24
47- added lots of assert()'s and log_OS_error()'s
48
4904/07
50- fix find_home_of_exe()
51- cleaned up code a bit
52
5303/27
54- copy_mondo_and_mindi_stuff --- if _homedir_/payload.tgz exists then untar it to CD
55
5601/14/2003
57- if backup media type == nfs then don't estimate no. of media reqd
58
5911/25/2002
60- don't log/echo estimated # of media required if >=50
61
6210/01 - 11/09
63- chmod uses 0x, not decimal :)
64- added is_this_file_compressed()
65- replace convoluted grep with wc (KP)
66
6709/01 - 09/30
68- only show "number of media" estimate if no -x
69- run_program_and_log_output() now takes boolean operator to specify
70  whether it will log its activities in the event of _success_
71
7208/01 - 08/31
73- handle unknown media sizes
74- cleaned up some log_it() calls
75
7607/24
77- created
78*/
79
80/**
81 * @file
82 * Functions to manipulate files.
83 */
84
85
86#include "my-stuff.h"
87#include "mondostructures.h"
88#include "libmondo-files.h"
89
90#include "lib-common-externs.h"
91
92#include "libmondo-tools-EXT.h"
93#include "libmondo-gui-EXT.h"
94#include "libmondo-devices-EXT.h"
95#include "libmondo-fork-EXT.h"
96#include "libmondo-string-EXT.h"
97
98/*@unused@*/
99//static char cvsid[] = "$Id: libmondo-files.c 662 2006-06-10 08:34:23Z bcornec $";
100
101extern char err_log_lines[NOOF_ERR_LINES][MAX_STR_LEN];
102
103extern int g_currentY;
104extern char *g_mondo_home;
105
106/**
107 * @addtogroup fileGroup
108 * @{
109 */
110/**
111 * Get an md5 checksum of the specified file.
112 * @param filename The file to checksum.
113 * @return The 32-character ASCII representation of the 128-bit checksum.
114 * @note The returned string points to static storage that will be overwritten with each call.
115 */
116char *calc_checksum_of_file(char *filename)
117{
118    /*@ buffers ***************************************************** */
119    static char output[MAX_STR_LEN];
120    char command[MAX_STR_LEN * 2];
121    char tmp[MAX_STR_LEN];
122
123    /*@ pointers **************************************************** */
124    char *p;
125    FILE *fin;
126
127    /*@ initialize pointers ***************************************** */
128
129    p = output;
130
131    /*@************************************************************** */
132
133    assert_string_is_neither_NULL_nor_zerolength(filename);
134    if (does_file_exist(filename)) {
135        sprintf(command, "md5sum \"%s\"", filename);
136        fin = popen(command, "r");
137        if (fin) {
138            (void) fgets(output, MAX_STR_LEN, fin);
139            p = strchr(output, ' ');
140            paranoid_pclose(fin);
141        }
142    } else {
143        sprintf(tmp, "File '%s' not found; cannot calc checksum",
144                filename);
145        log_it(tmp);
146    }
147    if (p) {
148        *p = '\0';
149    }
150    return (output);
151}
152
153
154/**
155 * Get a not-quite-unique representation of some of the file's @c stat properties.
156 * The returned string has the form <tt>size-mtime-ctime</tt>.
157 * @param curr_fname The file to generate the "checksum" for.
158 * @return The "checksum".
159 * @note The returned string points to static storage that will be overwritten with each call.
160 */
161char *calc_file_ugly_minichecksum(char *curr_fname)
162{
163
164    /*@ buffers ***************************************************** */
165    static char curr_cksum[1000];
166
167    /*@ pointers **************************************************** */
168
169    /*@ structures ************************************************** */
170    struct stat buf;
171
172    /*@ initialize data *************************************************** */
173    curr_cksum[0] = '\0';
174
175    /*@************************************************************** */
176
177    assert_string_is_neither_NULL_nor_zerolength(curr_fname);
178    if (lstat(curr_fname, &buf)) {
179        return (curr_cksum);    // empty
180    }
181
182    sprintf(curr_cksum, "%ld-%ld-%ld", (long) (buf.st_size),
183            (long) (buf.st_mtime), (long) (buf.st_ctime));
184    return (curr_cksum);
185}
186
187
188
189/**
190 * Get the number of lines in @p filename.
191 * @param filename The file to count lines in.
192 * @return The number of lines in @p filename.
193 * @bug This function uses the shell and "wc -l"; it should probably be rewritten in C.
194 */
195long count_lines_in_file(char *filename)
196{
197
198    /*@ buffers ***************************************************** */
199    char command[MAX_STR_LEN * 2];
200    char incoming[MAX_STR_LEN];
201    char tmp[MAX_STR_LEN];
202
203    /*@ long ******************************************************** */
204    long noof_lines = -1L;
205
206    /*@ pointers **************************************************** */
207    FILE *fin;
208
209    /*@ initialize [0] to null ******************************************** */
210    incoming[0] = '\0';
211
212    assert_string_is_neither_NULL_nor_zerolength(filename);
213    if (!does_file_exist(filename)) {
214        sprintf(tmp,
215                "%s does not exist, so I cannot found the number of lines in it",
216                filename);
217        log_it(tmp);
218        return (0);
219    }
220    sprintf(command, "cat %s | wc -l", filename);
221    if (!does_file_exist(filename)) {
222        return (-1);
223    }
224    fin = popen(command, "r");
225    if (fin) {
226        if (feof(fin)) {
227            noof_lines = 0;
228        } else {
229            (void) fgets(incoming, MAX_STR_LEN - 1, fin);
230            while (strlen(incoming) > 0
231                   && incoming[strlen(incoming) - 1] < 32) {
232                incoming[strlen(incoming) - 1] = '\0';
233            }
234            noof_lines = atol(incoming);
235        }
236        paranoid_pclose(fin);
237    }
238    return (noof_lines);
239}
240
241
242/**
243 * Check for existence of given @p filename.
244 * @param filename The file to check for.
245 * @return TRUE if it exists, FALSE otherwise.
246 */
247bool does_file_exist(char *filename)
248{
249
250    /*@ structures ************************************************** */
251    struct stat buf;
252
253    /*@************************************************************** */
254
255    assert(filename != NULL);
256    //  assert_string_is_neither_NULL_nor_zerolength(filename);
257    if (lstat(filename, &buf)) {
258        log_msg(20, "%s does not exist", filename);
259        return (FALSE);
260    } else {
261        log_msg(20, "%s exists", filename);
262        return (TRUE);
263    }
264}
265
266
267
268
269
270
271/**
272 * Modify @p inout (a file containing a list of files) to only contain files
273 * that exist.
274 * @param inout The filelist to operate on.
275 * @note The original file is renamed beforehand, so it will not be accessible
276 * while the modification is in progress.
277 */
278void exclude_nonexistent_files(char *inout)
279{
280    char infname[MAX_STR_LEN];
281    char outfname[MAX_STR_LEN];
282    char tmp[MAX_STR_LEN];
283    char incoming[MAX_STR_LEN];
284
285    /*@ int ********************************************************* */
286    int i;
287
288    /*@ pointers **************************************************** */
289    FILE *fin, *fout;
290
291
292    /*@ end vars *********************************************************** */
293
294    assert_string_is_neither_NULL_nor_zerolength(inout);
295    sprintf(infname, "%s.in", inout);
296    sprintf(outfname, "%s", inout);
297    sprintf(tmp, "cp -f %s %s", inout, infname);
298    run_program_and_log_output(tmp, FALSE);
299    if (!(fin = fopen(infname, "r"))) {
300        log_OS_error("Unable to openin infname");
301        return;
302    }
303    if (!(fout = fopen(outfname, "w"))) {
304        log_OS_error("Unable to openout outfname");
305        return;
306    }
307    for (fgets(incoming, MAX_STR_LEN, fin); !feof(fin);
308         fgets(incoming, MAX_STR_LEN, fin)) {
309        i = strlen(incoming) - 1;
310        if (i >= 0 && incoming[i] < 32) {
311            incoming[i] = '\0';
312        }
313        if (does_file_exist(incoming)) {
314            fprintf(fout, "%s\n", incoming);
315        } else {
316            sprintf(tmp, "Excluding '%s'-nonexistent\n", incoming);
317            log_it(tmp);
318        }
319    }
320    paranoid_fclose(fout);
321    paranoid_fclose(fin);
322    unlink(infname);
323}
324
325
326
327
328
329
330
331
332
333/**
334 * Attempt to find the user's kernel by calling Mindi.
335 * If Mindi can't find the kernel, ask user. If @p kernel is not empty,
336 * don't do anything.
337 * @param kernel Where to put the found kernel.
338 * @return 0 for success, 1 for failure.
339 */
340int figure_out_kernel_path_interactively_if_necessary(char *kernel)
341{
342    char tmp[MAX_STR_LEN];
343    char *command;
344
345    if (!kernel[0]) {
346        strcpy(kernel,
347               call_program_and_get_last_line_of_output
348               ("mindi --findkernel 2> /dev/null"));
349    }
350    // If we didn't get anything back, check whether mindi raised a fatal error
351    if (!kernel[0]) {
352        malloc_string(command);
353        strcpy(command, "grep 'Fatal error' /var/log/mindi.log");
354        strcpy(tmp, call_program_and_get_last_line_of_output(command));
355        if (strlen(tmp) > 1) {
356            popup_and_OK(tmp);
357            fatal_error("Mindi gave a fatal error. Please check '/var/log/mindi.log'.");
358        }
359        paranoid_free(command);
360    }
361    log_it("Calling Mindi with kernel path of '%s'", kernel);
362    while (!kernel[0]) {
363        if (!ask_me_yes_or_no
364            ("Kernel not found or invalid. Choose another?")) {
365            return (1);
366        }
367        if (!popup_and_get_string
368            ("Kernel path",
369             "What is the full path and filename of your kernel, please?",
370             kernel, MAX_STR_LEN / 4)) {
371            fatal_error
372                ("Kernel not found. Please specify with the '-k' flag.");
373        }
374        sprintf(tmp, "User says kernel is at %s", kernel);
375        log_it(tmp);
376    }
377    return (0);
378}
379
380
381
382
383
384
385/**
386 * Find location of specified executable in user's PATH.
387 * @param fname The basename of the executable to search for (e.g. @c afio).
388 * @return The full path to the executable, or "" if it does not exist, or NULL if @c file could not be found.
389 * @note The returned string points to static storage that will be overwritten with each call.
390 * @bug The checks with @c file and @c dirname seem pointless. If @c incoming is "", then you're calling
391 * <tt>dirname 2\>/dev/null</tt> or <tt>file 2\>/dev/null | cut -d':' -f1 2\>/dev/null</tt>, which basically amounts
392 * to nothing.
393 */
394char *find_home_of_exe(char *fname)
395{
396    /*@ buffers ********************* */
397    static char output[MAX_STR_LEN];
398    char *incoming;
399    char *command;
400
401    malloc_string(incoming);
402    malloc_string(command);
403    incoming[0] = '\0';
404    /*@******************************* */
405
406    assert_string_is_neither_NULL_nor_zerolength(fname);
407    sprintf(command, "which %s 2> /dev/null", fname);
408    strcpy(incoming, call_program_and_get_last_line_of_output(command));
409    if (incoming[0] == '\0') {
410        if (system("which file > /dev/null 2> /dev/null")) {
411            paranoid_free(incoming);
412            paranoid_free(command);
413            output[0] = '\0';
414            return (NULL);      // forget it :)
415        }
416        sprintf(command,
417                "file %s 2> /dev/null | cut -d':' -f1 2> /dev/null",
418                incoming);
419        strcpy(incoming,
420               call_program_and_get_last_line_of_output(command));
421    }
422    if (incoming[0] == '\0')    // yes, it is == '\0' twice, not once :)
423    {
424        sprintf(command, "dirname %s 2> /dev/null", incoming);
425        strcpy(incoming,
426               call_program_and_get_last_line_of_output(command));
427    }
428    strcpy(output, incoming);
429    if (output[0] != '\0' && does_file_exist(output)) {
430        log_msg(4, "find_home_of_exe () --- Found %s at %s", fname,
431                incoming);
432    } else {
433        output[0] = '\0';
434        log_msg(4, "find_home_of_exe() --- Could not find %s", fname);
435    }
436    paranoid_free(incoming);
437    paranoid_free(command);
438    if (!output[0]) {
439        return (NULL);
440    } else {
441        return (output);
442    }
443}
444
445
446
447
448
449
450
451
452/**
453 * Get the last sequence of digits surrounded by non-digits in the first 32k of
454 * a file.
455 * @param logfile The file to look in.
456 * @return The number found, or 0 if none.
457 */
458int get_trackno_from_logfile(char *logfile)
459{
460
461    /*@ pointers ********************************************************* */
462    FILE *fin;
463
464    /*@ int ************************************************************** */
465    int trackno = 0;
466    size_t len = 0;
467
468    /*@ buffer ************************************************************ */
469    char datablock[32701];
470
471    assert_string_is_neither_NULL_nor_zerolength(logfile);
472    if (!(fin = fopen(logfile, "r"))) {
473        log_OS_error("Unable to open logfile");
474        fatal_error("Unable to open logfile to read trackno");
475    }
476    len = fread(datablock, 1, 32700, fin);
477    paranoid_fclose(fin);
478    if (len <= 0) {
479        return (0);
480    }
481    for (; len > 0 && !isdigit(datablock[len - 1]); len--);
482    datablock[len--] = '\0';
483    for (; len > 0 && isdigit(datablock[len - 1]); len--);
484    trackno = atoi(datablock + len);
485    /*
486       sprintf(tmp,"datablock=%s; trackno=%d",datablock+len, trackno);
487       log_it(tmp);
488     */
489    return (trackno);
490}
491
492
493
494
495
496
497
498/**
499 * Get a percentage from the last line of @p filename. We look for the string
500 * "% done" on the last line and, if we find it, grab the number before the last % sign.
501 * @param filename The file to get the percentage from.
502 * @return The percentage found, or 0 for error.
503 */
504int grab_percentage_from_last_line_of_file(char *filename)
505{
506
507    /*@ buffers ***************************************************** */
508    char tmp[MAX_STR_LEN];
509    char lastline[MAX_STR_LEN];
510    char command[MAX_STR_LEN];
511    /*@ pointers **************************************************** */
512    char *p;
513
514    /*@ int's ******************************************************* */
515    int i;
516
517    for (i = NOOF_ERR_LINES - 1;
518         i >= 0 && !strstr(err_log_lines[i], "% Done")
519         && !strstr(err_log_lines[i], "% done"); i--);
520    if (i < 0) {
521        sprintf(command,
522                "tail -n3 %s | fgrep -i \"%c\" | tail -n1 | awk '{print $0;}'",
523                filename, '%');
524        strcpy(lastline,
525               call_program_and_get_last_line_of_output(command));
526        if (!lastline[0]) {
527            return (0);
528        }
529    } else {
530        strcpy(lastline, err_log_lines[i]);
531    }
532
533    p = strrchr(lastline, '%');
534    if (p) {
535        *p = '\0';
536    }
537//  log_msg(2, "lastline='%s', ", p, lastline);
538    if (!p) {
539        return (0);
540    }
541    *p = '\0';
542    for (p--; *p != ' ' && p != lastline; p--);
543    if (p != lastline) {
544        p++;
545    }
546    i = atoi(p);
547
548    sprintf(tmp, "'%s' --> %d", p, i);
549//     log_to_screen(tmp);
550
551    return (i);
552}
553
554
555
556
557
558/**
559 * Return the last line of @p filename.
560 * @param filename The file to get the last line of.
561 * @return The last line of the file.
562 * @note The returned string points to static storage that will be overwritten with each call.
563 */
564char *last_line_of_file(char *filename)
565{
566    /*@ buffers ***************************************************** */
567    static char output[MAX_STR_LEN];
568    static char command[MAX_STR_LEN * 2];
569    static char tmp[MAX_STR_LEN];
570
571    /*@ pointers **************************************************** */
572    FILE *fin;
573
574    /*@ end vars **************************************************** */
575
576    if (!does_file_exist(filename)) {
577        sprintf(tmp, "Tring to get last line of nonexistent file (%s)",
578                filename);
579        log_it(tmp);
580        output[0] = '\0';
581        return (output);
582    }
583    sprintf(command, "tail -n1 %s", filename);
584    fin = popen(command, "r");
585    (void) fgets(output, MAX_STR_LEN, fin);
586    paranoid_pclose(fin);
587    while (strlen(output) > 0 && output[strlen(output) - 1] < 32) {
588        output[strlen(output) - 1] = '\0';
589    }
590    return (output);
591}
592
593/**
594 * Get the length of @p filename in bytes.
595 * @param filename The file to get the length of.
596 * @return The length of the file, or -1 for error.
597 */
598long long length_of_file(char *filename)
599{
600    /*@ pointers *************************************************** */
601    FILE *fin;
602
603    /*@ long long ************************************************* */
604    long long length;
605
606    fin = fopen(filename, "r");
607    if (!fin) {
608        log_it("filename=%s", filename);
609        log_OS_error("Unable to openin filename");
610        return (-1);
611    }
612    fseeko(fin, 0, SEEK_END);
613    length = ftell(fin);
614    paranoid_fclose(fin);
615    return (length);
616}
617
618
619
620/**
621 * ?????
622 * @bug I don't know what this function does. However, it seems orphaned, so it should probably be removed.
623 */
624int
625make_checksum_list_file(char *filelist, char *cksumlist, char *comppath)
626{
627    /*@ pointers **************************************************** */
628    FILE *fin;
629    FILE *fout;
630
631    /*@ int   ******************************************************* */
632    int percentage;
633    int i;
634    int counter = 0;
635
636    /*@ buffer ****************************************************** */
637    char stub_fname[1000];
638    char curr_fname[1000];
639    char curr_cksum[1000];
640    char tmp[1000];
641
642    /*@ long [long] ************************************************* */
643    long long filelist_length;
644    long curr_pos;
645    long start_time;
646    long current_time;
647    long time_taken;
648    long time_remaining;
649
650    /*@ end vars *************************************************** */
651
652    start_time = get_time();
653    filelist_length = length_of_file(filelist);
654    sprintf(tmp, "filelist = %s; cksumlist = %s", filelist, cksumlist);
655    log_it(tmp);
656    fin = fopen(filelist, "r");
657    if (fin == NULL) {
658        log_OS_error("Unable to fopen-in filelist");
659        log_to_screen("Can't open filelist");
660        return (1);
661    }
662    fout = fopen(cksumlist, "w");
663    if (fout == NULL) {
664        log_OS_error("Unable to openout cksumlist");
665        paranoid_fclose(fin);
666        log_to_screen("Can't open checksum list");
667        return (1);
668    }
669    for (fgets(stub_fname, 999, fin); !feof(fin);
670         fgets(stub_fname, 999, fin)) {
671        if (stub_fname[(i = strlen(stub_fname) - 1)] < 32) {
672            stub_fname[i] = '\0';
673        }
674        sprintf(tmp, "%s%s", comppath, stub_fname);
675        strcpy(curr_fname, tmp + 1);
676        strcpy(curr_cksum, calc_file_ugly_minichecksum(curr_fname));
677        fprintf(fout, "%s\t%s\n", curr_fname, curr_cksum);
678        if (counter++ > 12) {
679            current_time = get_time();
680            counter = 0;
681            curr_fname[37] = '\0';
682            curr_pos = ftell(fin) / 1024;
683            percentage = (int) (curr_pos * 100 / filelist_length);
684            time_taken = current_time - start_time;
685            if (percentage == 0) {
686                /*              printf("%0d%% done      \r",percentage); */
687            } else {
688                time_remaining =
689                    time_taken * 100 / (long) (percentage) - time_taken;
690                sprintf(tmp,
691                        "%02d%% done   %02d:%02d taken   %02d:%02d remaining  %-37s\r",
692                        percentage, (int) (time_taken / 60),
693                        (int) (time_taken % 60),
694                        (int) (time_remaining / 60),
695                        (int) (time_remaining % 60), curr_fname);
696                log_to_screen(tmp);
697            }
698            sync();
699        }
700    }
701    paranoid_fclose(fout);
702    paranoid_fclose(fin);
703    log_it("Done.");
704    return (0);
705}
706
707
708/**
709 * Create the directory @p outdir_fname and all parent directories. Equivalent to <tt>mkdir -p</tt>.
710 * @param outdir_fname The directory to create.
711 * @return The return value of @c mkdir.
712 */
713int make_hole_for_dir(char *outdir_fname)
714{
715    char tmp[MAX_STR_LEN * 2];
716    int res = 0;
717
718    assert_string_is_neither_NULL_nor_zerolength(outdir_fname);
719    sprintf(tmp, "mkdir -p %s", outdir_fname);
720    res = system(tmp);
721    return (res);
722}
723
724
725/**
726 * Create the parent directories of @p outfile_fname.
727 * @param outfile_fname The file to make a "hole" for.
728 * @return 0, always.
729 * @bug Return value unnecessary.
730 */
731int make_hole_for_file(char *outfile_fname)
732{
733    /*@ buffer ****************************************************** */
734    char command[MAX_STR_LEN * 2];
735
736    /*@ int  ******************************************************** */
737    int res = 0;
738
739    /*@ end vars *************************************************** */
740
741    assert_string_is_neither_NULL_nor_zerolength(outfile_fname);
742    assert(!strstr(outfile_fname, MNT_CDROM));
743    assert(!strstr(outfile_fname, "/dev/cdrom"));
744    sprintf(command, "mkdir -p \"%s\" 2> /dev/null", outfile_fname);
745    res += system(command);
746    sprintf(command, "rmdir \"%s\" 2> /dev/null", outfile_fname);
747    res += system(command);
748    sprintf(command, "rm -f \"%s\" 2> /dev/null", outfile_fname);
749    res += system(command);
750    unlink(outfile_fname);
751    return (0);
752}
753
754
755
756
757/**
758 * Get the number of lines in @p filelist_fname that contain the string @p wildcard.
759 * @param filelist_fname The file to search through.
760 * @param wildcard The string to search for. This is @e not a shell glob or a regular expression.
761 * @return The number of lines matched.
762 */
763long noof_lines_that_match_wildcard(char *filelist_fname, char *wildcard)
764{
765    /*@ long ******************************************************* */
766    long matches = 0;
767
768    /*@ pointers *************************************************** */
769    FILE *fin;
770
771    /*@ buffers **************************************************** */
772    char incoming[MAX_STR_LEN];
773
774    /*@ end vars *************************************************** */
775
776
777    fin = fopen(filelist_fname, "r");
778
779    if (!fin) {
780        log_OS_error("Unable to openin filelist_fname");
781        return (0);
782    }
783    (void) fgets(incoming, MAX_STR_LEN - 1, fin);
784    while (!feof(fin)) {
785        if (strstr(incoming, wildcard)) {
786            matches++;
787        }
788        (void) fgets(incoming, MAX_STR_LEN - 1, fin);
789    }
790    paranoid_fclose(fin);
791    return (matches);
792}
793
794
795
796
797/**
798 * Register our PID in a file in /var/run.
799 * The PID will be put in /var/run/monitas-<tt>name_str</tt>.pid.
800 * @param pid 0 to remove file, anything else to create it.
801 * @param name_str The basename of the PID file (e.g. "mondo" or "server")
802 * @note This function does not provide support against multiple instances, unless you check for that yourself.
803 */
804void register_pid(pid_t pid, char *name_str)
805{
806    char tmp[MAX_STR_LEN + 1], lockfile_fname[MAX_STR_LEN + 1];
807    int res;
808    FILE *fin;
809
810    sprintf(lockfile_fname, "/var/run/monitas-%s.pid", name_str);
811    if (!pid) {
812        log_it("Unregistering PID");
813        if (unlink(lockfile_fname)) {
814            log_it("Error unregistering PID");
815        }
816        return;
817    }
818    if (does_file_exist(lockfile_fname)) {
819        tmp[0] = '\0';
820        if ((fin = fopen(lockfile_fname, "r"))) {
821            (void) fgets(tmp, MAX_STR_LEN, fin);
822            paranoid_fclose(fin);
823        } else {
824            log_OS_error("Unable to openin lockfile_fname");
825        }
826        pid = (pid_t) atol(tmp);
827        sprintf(tmp, "ps %ld > /dev/null 2> /dev/null", (long int) pid);
828        res = system(tmp);
829        if (!res) {
830            log_it
831                ("I believe the daemon is already running. If it isn't, please delete %s and try again.",
832                 lockfile_fname);
833        }
834    }
835    sprintf(tmp, "echo %ld > %s 2> /dev/null", (long int) getpid(),
836            lockfile_fname);
837    if (system(tmp)) {
838        fatal_error("Cannot register PID");
839    }
840}
841
842
843
844/**
845 * Determine the size (in KB) of @p dev in the mountlist in <tt>tmpdir</tt>/mountlist.txt.
846 * @param tmpdir The tempdir where the mountlist is stored.
847 * @param dev The device to search for.
848 * @return The size of the partition in KB.
849 */
850long size_of_partition_in_mountlist_K(char *tmpdir, char *dev)
851{
852    char command[MAX_STR_LEN];
853    char mountlist[MAX_STR_LEN];
854    char sz_res[MAX_STR_LEN];
855    long file_len_K;
856
857    sprintf(mountlist, "%s/mountlist.txt", tmpdir);
858    sprintf(command,
859            "grep \"%s \" %s/mountlist.txt | head -n1 | awk '{print $4}'",
860            dev, tmpdir);
861    log_it(command);
862    strcpy(sz_res, call_program_and_get_last_line_of_output(command));
863    file_len_K = atol(sz_res);
864    log_msg(4, "%s --> %s --> %ld", command, sz_res, file_len_K);
865    return (file_len_K);
866}
867
868/**
869 * Calculate the total size (in KB) of all the biggiefiles in this backup.
870 * @param bkpinfo The backup information structure. Only the @c bkpinfo->tmpdir field is used.
871 * @return The total size of all biggiefiles in KB.
872 */
873long size_of_all_biggiefiles_K(struct s_bkpinfo *bkpinfo)
874{
875    /*@ buffers ***************************************************** */
876    char *fname;
877    char *biggielist;
878    char *comment;
879    char *tmp;
880    char *command;
881
882    /*@ long ******************************************************** */
883    long scratchL = 0;
884    long file_len_K;
885
886    /*@ pointers *************************************************** */
887    FILE *fin = NULL;
888
889    /*@ end vars *************************************************** */
890
891    malloc_string(fname);
892    malloc_string(biggielist);
893    malloc_string(comment);
894    malloc_string(tmp);
895    malloc_string(command);
896    log_it("Calculating size of all biggiefiles (in total)");
897    sprintf(biggielist, "%s/biggielist.txt", bkpinfo->tmpdir);
898    log_it("biggielist = %s", biggielist);
899    if (!(fin = fopen(biggielist, "r"))) {
900        log_OS_error
901            ("Cannot open biggielist. OK, so estimate is based on filesets only.");
902    } else {
903        log_msg(4, "Reading it...");
904        for (fgets(fname, MAX_STR_LEN, fin); !feof(fin);
905             fgets(fname, MAX_STR_LEN, fin)) {
906            if (fname[strlen(fname) - 1] <= 32) {
907                fname[strlen(fname) - 1] = '\0';
908            }
909            if (0 == strncmp(fname, "/dev/", 5)) {
910                if (is_dev_an_NTFS_dev(fname)) {
911                    if ( !find_home_of_exe("ntfsresize")) {
912                        fatal_error("ntfsresize not found");
913                    }
914                    sprintf(command, "ntfsresize --force --info %s|grep '^You might resize at '|cut -d' ' -f5", fname);
915                    log_it("command = %s", command);
916                    strcpy (tmp, call_program_and_get_last_line_of_output(command));
917                    log_it("res of it = %s", tmp);
918                    file_len_K = atoll(tmp) / 1024L;
919                } else {
920                    file_len_K = get_phys_size_of_drive(fname) * 1024L;
921                }
922            } else {
923                file_len_K = (long) (length_of_file(fname) / 1024);
924            }
925            if (file_len_K > 0) {
926                scratchL += file_len_K;
927                log_msg(4, "%s --> %ld K", fname, file_len_K);
928            }
929            sprintf(comment,
930                    "After adding %s, scratchL+%ld now equals %ld", fname,
931                    file_len_K, scratchL);
932            log_msg(4, comment);
933            if (feof(fin)) {
934                break;
935            }
936        }
937    }
938    log_it("Closing...");
939    paranoid_fclose(fin);
940    log_it("Finished calculating total size of all biggiefiles");
941    paranoid_free(fname);
942    paranoid_free(biggielist);
943    paranoid_free(comment);
944    paranoid_free(tmp);
945    paranoid_free(command);
946    return (scratchL);
947}
948
949/**
950 * Determine the amount of space (in KB) occupied by a mounted CD.
951 * This can also be used to find the space used for other directories.
952 * @param mountpt The mountpoint/directory to check.
953 * @return The amount of space occupied in KB.
954 */
955long long space_occupied_by_cd(char *mountpt)
956{
957    /*@ buffer ****************************************************** */
958    char tmp[MAX_STR_LEN];
959    char command[MAX_STR_LEN * 2];
960    long long llres;
961    /*@ pointers **************************************************** */
962    char *p;
963    FILE *fin;
964
965    /*@ end vars *************************************************** */
966
967    sprintf(command, "du -sk %s", mountpt);
968    fin = popen(command, "r");
969    (void) fgets(tmp, MAX_STR_LEN, fin);
970    paranoid_pclose(fin);
971    p = strchr(tmp, '\t');
972    if (p) {
973        *p = '\0';
974    }
975    for (p = tmp, llres = 0; *p != '\0'; p++) {
976        llres *= 10;
977        llres += (int) (*p - '0');
978    }
979    return (llres);
980}
981
982
983/**
984 * Update a CRC checksum to include another character.
985 * @param crc The original CRC checksum.
986 * @param c The character to add.
987 * @return The new CRC checksum.
988 * @ingroup utilityGroup
989 */
990unsigned int updcrc(unsigned int crc, unsigned int c)
991{
992    unsigned int tmp;
993    tmp = (crc >> 8) ^ c;
994    crc = (crc << 8) ^ crctttab[tmp & 255];
995    return crc;
996}
997
998/**
999 * Update a reverse CRC checksum to include another character.
1000 * @param crc The original CRC checksum.
1001 * @param c The character to add.
1002 * @return The new CRC checksum.
1003 * @ingroup utilityGroup
1004 */
1005unsigned int updcrcr(unsigned int crc, unsigned int c)
1006{
1007    unsigned int tmp;
1008    tmp = crc ^ c;
1009    crc = (crc >> 8) ^ crc16tab[tmp & 0xff];
1010    return crc;
1011}
1012
1013
1014
1015
1016/**
1017 * Check for an executable on the user's system; write a message to the
1018 * screen and the log if we can't find it.
1019 * @param fname The executable basename to look for.
1020 * @return 0 if it's found, nonzero if not.
1021 */
1022int whine_if_not_found(char *fname)
1023{
1024    /*@ buffers *** */
1025    char command[MAX_STR_LEN * 2];
1026    char errorstr[MAX_STR_LEN];
1027
1028
1029    sprintf(command, "which %s > /dev/null 2> /dev/null", fname);
1030    sprintf(errorstr,
1031            "Please install '%s'. I cannot find it on your system.",
1032            fname);
1033    if (system(command)) {
1034        log_to_screen(errorstr);
1035        log_to_screen
1036            ("There may be hyperlink at http://www.mondorescue.com which");
1037        log_to_screen("will take you to the relevant (missing) package.");
1038        return (1);
1039    } else {
1040        return (0);
1041    }
1042}
1043
1044
1045
1046
1047
1048
1049/**
1050 * Create a data file at @p fname containing @p contents.
1051 * The data actually can be multiple lines, despite the name.
1052 * @param fname The file to create.
1053 * @param contents The data to put in it.
1054 * @return 0 for success, 1 for failure.
1055 */
1056int write_one_liner_data_file(char *fname, char *contents)
1057{
1058    /*@ pointers *************************************************** */
1059    FILE *fout;
1060    int res = 0;
1061
1062    /*@ end vars *************************************************** */
1063
1064    assert_string_is_neither_NULL_nor_zerolength(fname);
1065    if (!contents) {
1066        log_it("%d: Warning - writing NULL to %s", __LINE__, fname);
1067    }
1068    if (!(fout = fopen(fname, "w"))) {
1069        log_it("fname=%s");
1070        log_OS_error("Unable to openout fname");
1071        return (1);
1072    }
1073    fprintf(fout, "%s\n", contents);
1074    paranoid_fclose(fout);
1075    return (res);
1076}
1077
1078
1079
1080/**
1081 * Read @p fname into @p contents.
1082 * @param fname The file to read.
1083 * @param contents Where to put its contents.
1084 * @return 0 for success, nonzero for failure.
1085 */
1086int read_one_liner_data_file(char *fname, char *contents)
1087{
1088    /*@ pointers *************************************************** */
1089    FILE *fin;
1090    int res = 0;
1091    int i;
1092
1093    /*@ end vars *************************************************** */
1094
1095    assert_string_is_neither_NULL_nor_zerolength(fname);
1096    if (!contents) {
1097        log_it("%d: Warning - reading NULL from %s", __LINE__, fname);
1098    }
1099    if (!(fin = fopen(fname, "r"))) {
1100        log_it("fname=%s", fname);
1101        log_OS_error("Unable to openin fname");
1102        return (1);
1103    }
1104    fscanf(fin, "%s\n", contents);
1105    i = strlen(contents);
1106    if (i > 0 && contents[i - 1] < 32) {
1107        contents[i - 1] = '\0';
1108    }
1109    paranoid_fclose(fin);
1110    return (res);
1111}
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121/**
1122 * Copy the files that Mondo/Mindi need to run to the scratchdir or tempdir.
1123 * Currently this includes: copy Mondo's home directory to scratchdir, untar "mondo_home/payload.tgz"
1124 * if it exists, copy LAST-FILELIST-NUMBER to scratchdir, copy mondorestore
1125 * and post-nuke.tgz (if it exists) to tmpdir, and run "hostname > scratchdir/HOSTNAME".
1126 * @param bkpinfo The backup information structure. Fields used:
1127 * - @c bkpinfo->postnuke_tarball
1128 * - @c bkpinfo->scratchdir
1129 * - @c bkpinfo->tmpdir
1130 */
1131void copy_mondo_and_mindi_stuff_to_scratchdir(struct s_bkpinfo *bkpinfo)
1132{
1133    /*@ Char buffers ** */
1134    char command[MAX_STR_LEN * 2];
1135    char tmp[MAX_STR_LEN];
1136    char old_pwd[MAX_STR_LEN];
1137
1138    mvaddstr_and_log_it(g_currentY, 0,
1139                        "Copying Mondo's core files to the scratch directory");
1140
1141    log_msg(4, "g_mondo_home='%s'", g_mondo_home);
1142    if (strlen(g_mondo_home) < 2) {
1143        find_and_store_mondoarchives_home(g_mondo_home);
1144    }
1145    sprintf(command, CP_BIN " --parents -pRdf %s %s", g_mondo_home,
1146            bkpinfo->scratchdir);
1147
1148    log_msg(4, "command = %s", command);
1149    if (run_program_and_log_output(command, 1)) {
1150        fatal_error("Failed to copy Mondo's stuff to scratchdir");
1151    }
1152
1153    sprintf(tmp, "%s/payload.tgz", g_mondo_home);
1154    if (does_file_exist(tmp)) {
1155        log_it("Untarring payload %s to scratchdir %s", tmp,
1156               bkpinfo->scratchdir);
1157        (void) getcwd(old_pwd, MAX_STR_LEN - 1);
1158        chdir(bkpinfo->scratchdir);
1159        sprintf(command, "tar -zxvf %s", tmp);
1160        if (run_program_and_log_output(command, FALSE)) {
1161            fatal_error("Failed to untar payload");
1162        }
1163        chdir(old_pwd);
1164    }
1165
1166    sprintf(command, "cp -f %s/LAST-FILELIST-NUMBER %s", bkpinfo->tmpdir,
1167            bkpinfo->scratchdir);
1168
1169    if (run_program_and_log_output(command, FALSE)) {
1170        fatal_error("Failed to copy LAST-FILELIST-NUMBER to scratchdir");
1171    }
1172
1173    strcpy(tmp,
1174           call_program_and_get_last_line_of_output("which mondorestore"));
1175    if (!tmp[0]) {
1176        fatal_error
1177            ("'which mondorestore' returned null. Where's your mondorestore? `which` can't find it. That's odd. Did you install mondorestore?");
1178    }
1179    sprintf(command, "cp -f %s %s", tmp, bkpinfo->tmpdir);
1180    if (run_program_and_log_output(command, FALSE)) {
1181        fatal_error("Failed to copy mondorestore to tmpdir");
1182    }
1183
1184    sprintf(command, "hostname > %s/HOSTNAME", bkpinfo->scratchdir);
1185    paranoid_system(command);
1186
1187    if (bkpinfo->postnuke_tarball[0]) {
1188        sprintf(command, "cp -f %s %s/post-nuke.tgz",
1189                bkpinfo->postnuke_tarball, bkpinfo->tmpdir);
1190        if (run_program_and_log_output(command, FALSE)) {
1191            fatal_error("Unable to copy post-nuke tarball to tmpdir");
1192        }
1193    }
1194
1195
1196    mvaddstr_and_log_it(g_currentY++, 74, "Done.");
1197}
1198
1199
1200
1201
1202
1203/**
1204 * Store the client's NFS configuration in files to be restored at restore-time.
1205 * Assumes that @c bkpinfo->media_type = nfs, but does not check for this.
1206 * @param bkpinfo The backup information structure. Fields used:
1207 * - @c nfs_mount
1208 * - @c nfs_remote_dir
1209 * - @c tmpdir
1210 */
1211void store_nfs_config(struct s_bkpinfo *bkpinfo)
1212{
1213
1214    /*@ buffers ******** */
1215    char outfile[MAX_STR_LEN];
1216    char nfs_dev[MAX_STR_LEN];
1217    char nfs_mount[MAX_STR_LEN];
1218    char nfs_client_ipaddr[MAX_STR_LEN];
1219    char nfs_client_netmask[MAX_STR_LEN];
1220    char nfs_client_broadcast[MAX_STR_LEN];
1221    char nfs_client_defgw[MAX_STR_LEN];
1222    char nfs_server_ipaddr[MAX_STR_LEN];
1223    char tmp[MAX_STR_LEN];
1224    char command[MAX_STR_LEN * 2];
1225
1226    /*@ pointers ***** */
1227    char *p;
1228    FILE *fout;
1229
1230
1231
1232    log_it("Storing NFS configuration");
1233    strcpy(tmp, bkpinfo->nfs_mount);
1234    p = strchr(tmp, ':');
1235    if (!p) {
1236        fatal_error
1237            ("NFS mount doesn't have a colon in it, e.g. 192.168.1.4:/home/nfs");
1238    }
1239    *(p++) = '\0';
1240    strcpy(nfs_server_ipaddr, tmp);
1241    strcpy(nfs_mount, p);
1242    sprintf(command,
1243            "ifconfig | tr '\n' '#' | sed s/##// | tr '#' ' ' | tr '' '\n' | head -n1 | cut -d' ' -f1");
1244    strcpy(nfs_dev, call_program_and_get_last_line_of_output(command));
1245    sprintf(command,
1246            "ifconfig | tr '\n' '#' | sed s/##// | tr '#' ' ' | tr '' '\\n' | head -n1 | tr -s '\t' ' ' | cut -d' ' -f7 | cut -d':' -f2");
1247    strcpy(nfs_client_ipaddr,
1248           call_program_and_get_last_line_of_output(command));
1249    sprintf(command,
1250            "ifconfig | tr '\n' '#' | sed s/##// | tr '#' ' ' | tr '' '\\n' | head -n1 | tr -s '\t' ' ' | cut -d' ' -f9 | cut -d':' -f2");
1251    strcpy(nfs_client_netmask,
1252           call_program_and_get_last_line_of_output(command));
1253    sprintf(command,
1254            "ifconfig | tr '\n' '#' | sed s/##// | tr '#' ' ' | tr '' '\\n' | head -n1 | tr -s '\t' ' ' | cut -d' ' -f8 | cut -d':' -f2");
1255    strcpy(nfs_client_broadcast,
1256           call_program_and_get_last_line_of_output(command));
1257    sprintf(command,
1258            "route -n | grep '^0.0.0.0' | awk '{print $2}'");
1259    strcpy(nfs_client_defgw,
1260           call_program_and_get_last_line_of_output(command));
1261    sprintf(tmp,
1262            "nfs_client_ipaddr=%s; nfs_server_ipaddr=%s; nfs_mount=%s",
1263            nfs_client_ipaddr, nfs_server_ipaddr, nfs_mount);
1264    if (strlen(nfs_dev) < 2) {
1265        fatal_error
1266            ("Unable to find ethN (eth0, eth1, ...) adapter via NFS mount you specified.");
1267    }
1268    sprintf(outfile, "%s/start-nfs", bkpinfo->tmpdir);
1269    sprintf(tmp, "outfile = %s", outfile);
1270    log_it(tmp);
1271    if (!(fout = fopen(outfile, "w"))) {
1272        fatal_error("Cannot store NFS config");
1273    }
1274    fprintf(fout, "#!/bin/sh\n");
1275    fprintf(fout, "# number of ping\n");
1276    fprintf(fout, "ipcount=3\n");
1277    fprintf(fout, "for i in `cat /proc/cmdline` ; do\n");
1278    fprintf(fout, "    echo $i | grep -qi ping= && ipcount=`echo $i | cut -d= -f2`\n");
1279    fprintf(fout, "done\n");
1280    fprintf(fout, "ifconfig lo 127.0.0.1  # config loopback\n");
1281    fprintf(fout, "ipdev=%s\n", nfs_dev);
1282    fprintf(fout, "ipaddress=%s\n", nfs_client_ipaddr);
1283    fprintf(fout, "ipnetmask=%s\n", nfs_client_netmask);
1284    fprintf(fout, "ipbroadcast=%s\n", nfs_client_broadcast);
1285    fprintf(fout, "ipgateway=%s\n", nfs_client_defgw);
1286    fprintf(fout, "ipconf=\n");
1287    fprintf(fout, "nfsmount=%s\n", bkpinfo->nfs_mount);
1288    fprintf(fout, "for i in `cat /proc/cmdline` ; do\n");
1289    fprintf(fout, "    echo $i | grep -qi ipconf= && ipconf=`echo $i | cut -d= -f2`\n");
1290    fprintf(fout, "    echo $i | grep -qi nfsmount= && nfsmount=`echo $i | cut -d= -f2`\n");
1291    fprintf(fout, "done\n");
1292    fprintf(fout, "nfs_server_ipaddr=`echo $nfsmount | cut -d: -f1`\n");
1293    fprintf(fout, "echo \"$ipconf\" | grep -q \"dhcp\"\n");
1294    fprintf(fout, "if [ $? -eq 0 ]; then\n");
1295    fprintf(fout, "    ipdev=`echo $ipconf | cut -d: -f1`\n");
1296    fprintf(fout, "    echo \"Making DHCP request on $ipdev\"\n");
1297    fprintf(fout, "    udhcpc -i $ipdev\n");
1298    fprintf(fout, "else\n");
1299    fprintf(fout, "    if [ \"$ipconf\" != \"\" ]; then\n");
1300    fprintf(fout, "        ipdev=`echo $ipconf | cut -d: -f1`\n");
1301    fprintf(fout, "        ipaddress=`echo $ipconf | cut -d: -f2`\n");
1302    fprintf(fout, "        ipnetmask=`echo $ipconf | cut -d: -f3`\n");
1303    fprintf(fout, "        ipbroadcast=`echo $ipconf | cut -d: -f4`\n");
1304    fprintf(fout, "        ipgateway=`echo $ipconf | cut -d: -f5`\n");
1305    fprintf(fout, "    fi\n");
1306    fprintf(fout, "    ifconfig $ipdev $ipaddress netmask $ipnetmask broadcast $ipbroadcast\n");
1307    fprintf(fout, "    route add default gw $ipgateway\n");
1308    fprintf(fout, "fi\n");
1309    fprintf(fout, "ping -c $ipcount $nfs_server_ipaddr # ping server\n");
1310    fprintf(fout, "mount -t nfs -o nolock $nfsmount /tmp/isodir\n");
1311    paranoid_fclose(fout);
1312    chmod(outfile, 0777);
1313    make_hole_for_dir("/var/cache/mondo-archive");
1314
1315//  paranoid_system ("mkdir -p /var/cache/mondo-archive 2> /dev/null");
1316
1317    sprintf(tmp, "cp -f %s /var/cache/mondo-archive", outfile);
1318    run_program_and_log_output(tmp, FALSE);
1319
1320    sprintf(tmp, "%s/NFS-DEV", bkpinfo->tmpdir);
1321    write_one_liner_data_file(tmp, nfs_dev);
1322
1323    sprintf(tmp, "%s/NFS-CLIENT-IPADDR", bkpinfo->tmpdir);
1324    write_one_liner_data_file(tmp, nfs_client_ipaddr);
1325    sprintf(tmp, "%s/NFS-CLIENT-NETMASK", bkpinfo->tmpdir);
1326    write_one_liner_data_file(tmp, nfs_client_netmask);
1327    sprintf(tmp, "%s/NFS-CLIENT-BROADCAST", bkpinfo->tmpdir);
1328    write_one_liner_data_file(tmp, nfs_client_broadcast);
1329    sprintf(tmp, "%s/NFS-CLIENT-DEFGW", bkpinfo->tmpdir);
1330    write_one_liner_data_file(tmp, nfs_client_defgw);
1331    sprintf(tmp, "%s/NFS-SERVER-IPADDR", bkpinfo->tmpdir);
1332    write_one_liner_data_file(tmp, nfs_server_ipaddr);
1333    sprintf(tmp, "%s/NFS-SERVER-MOUNT", bkpinfo->tmpdir);
1334    write_one_liner_data_file(tmp, bkpinfo->nfs_mount);
1335    sprintf(tmp, "%s/NFS-SERVER-PATH", bkpinfo->tmpdir);
1336    write_one_liner_data_file(tmp, bkpinfo->nfs_remote_dir);
1337    sprintf(tmp, "%s/ISO-PREFIX", bkpinfo->tmpdir);
1338    write_one_liner_data_file(tmp, bkpinfo->prefix);
1339    log_it("Finished storing NFS configuration");
1340}
1341
1342
1343
1344
1345
1346
1347/**
1348 * Determine the approximate number of media that the backup will take up,
1349 * and tell the user. The uncompressed size is estimated as size_of_all_biggiefiles_K()
1350 * plus (noof_sets x bkpinfo->optimal_set_size). The compression factor is estimated as
1351 * 2/3 for LZO and 1/2 for bzip2. The data is not saved anywhere. If there are any
1352 * "imagedevs", the estimate is not shown as it will be wildly inaccurate.
1353 * If there are more than 50 media estimated, the estimate will not be shown.
1354 * @param bkpinfo The backup information structure. Fields used:
1355 * - @c bkpinfo->backup_media_type
1356 * - @c bkpinfo->image_devs
1357 * - @c bkpinfo->media_size
1358 * - @c bkpinfo->optimal_set_size
1359 * - @c bkpinfo->use_lzo
1360 * @param noof_sets The number of filesets created.
1361 * @ingroup archiveGroup
1362 */
1363void
1364estimate_noof_media_required(struct s_bkpinfo *bkpinfo, long noof_sets)
1365{
1366    /*@ buffers *************** */
1367    char tmp[MAX_STR_LEN];
1368
1369    /*@ long long ************* */
1370    long long scratchLL;
1371
1372    if (bkpinfo->media_size[1] <= 0 || bkpinfo->backup_media_type == nfs) {
1373        log_to_screen("Number of media required: UNKNOWN");
1374        return;
1375    }
1376
1377    log_it("Estimating number of media required...");
1378    scratchLL =
1379        (long long) (noof_sets) * (long long) (bkpinfo->optimal_set_size)
1380        + (long long) (size_of_all_biggiefiles_K(bkpinfo));
1381    scratchLL = (scratchLL / 1024) / bkpinfo->media_size[1];
1382    scratchLL++;
1383    if (bkpinfo->use_lzo) {
1384        scratchLL = (scratchLL * 2) / 3;
1385    } else {
1386        scratchLL = scratchLL / 2;
1387    }
1388    if (!scratchLL) {
1389        scratchLL++;
1390    }
1391    if (scratchLL <= 1) {
1392        sprintf(tmp,
1393                "Your backup will probably occupy a single %s. Maybe two.",
1394                media_descriptor_string(bkpinfo->backup_media_type));
1395    } else if (scratchLL > 4) {
1396        sprintf(tmp,
1397                "Your backup will occupy one meeeeellion media! (maybe %s)",
1398                number_to_text((int) (scratchLL + 1)));
1399    } else {
1400        sprintf(tmp, "Your backup will occupy approximately %s media.",
1401                number_to_text((int) (scratchLL + 1)));
1402    }
1403    if (!bkpinfo->image_devs[0] && (scratchLL < 50)) {
1404        log_to_screen(tmp);
1405    }
1406}
1407
1408
1409/**
1410 * Get the last suffix of @p instr.
1411 * If @p instr was "httpd.log.gz", we would return "gz".
1412 * @param instr The filename to get the suffix of.
1413 * @return The suffix (without a dot), or "" if none.
1414 * @note The returned string points to static storage that will be overwritten with each call.
1415 */
1416char *sz_last_suffix(char *instr)
1417{
1418    static char outstr[MAX_STR_LEN];
1419    char *p;
1420
1421    p = strrchr(instr, '.');
1422    if (!p) {
1423        outstr[0] = '\0';
1424    } else {
1425        strcpy(outstr, p);
1426    }
1427    return (outstr);
1428}
1429
1430
1431/**
1432 * Determine whether a file is compressed. This is done
1433 * by reading through the "do-not-compress-these" file distributed with Mondo.
1434 * @param filename The file to check.
1435 * @return TRUE if it's compressed, FALSE if not.
1436 */
1437bool is_this_file_compressed(char *filename)
1438{
1439    char do_not_compress_these[MAX_STR_LEN];
1440    char tmp[MAX_STR_LEN];
1441    char *p;
1442
1443    sprintf(tmp, "%s/do-not-compress-these", g_mondo_home);
1444    if (!does_file_exist(tmp)) {
1445        return (FALSE);
1446    }
1447    strcpy(do_not_compress_these, last_line_of_file(tmp));
1448    for (p = do_not_compress_these; p != NULL; p++) {
1449        strcpy(tmp, p);
1450        if (strchr(tmp, ' ')) {
1451            *(strchr(tmp, ' ')) = '\0';
1452        }
1453        if (!strcmp(sz_last_suffix(filename), tmp)) {   /*printf("MATCH\n"); */
1454            return (TRUE);
1455        }
1456        if (!(p = strchr(p, ' '))) {
1457            break;
1458        }
1459    }
1460    return (FALSE);
1461}
1462
1463
1464
1465int mode_of_file(char *fname)
1466{
1467    struct stat buf;
1468
1469    if (lstat(fname, &buf)) {
1470        return (-1);
1471    }                           // error
1472    else {
1473        return (buf.st_mode);
1474    }
1475}
1476
1477
1478
1479
1480/**
1481 * Create a small script that mounts /boot, calls @c grub-install, and syncs the disks.
1482 * @param outfile Where to put the script.
1483 * @return 0 for success, 1 for failure.
1484 */
1485int make_grub_install_scriptlet(char *outfile)
1486{
1487    FILE *fout;
1488    char *tmp;
1489    int retval = 0;
1490
1491    malloc_string(tmp);
1492    if ((fout = fopen(outfile, "w"))) {
1493        fprintf(fout,
1494                "#!/bin/sh\n\nmount /boot > /dev/null 2> /dev/null\ngrub-install $@\nres=$?\nsync;sync;sync\nexit $res\n");
1495        paranoid_fclose(fout);
1496        log_msg(2, "Created %s", outfile);
1497        sprintf(tmp, "chmod +x %s", outfile);
1498        paranoid_system(tmp);
1499        retval = 0;
1500    } else {
1501        retval = 1;
1502    }
1503    paranoid_free(tmp);
1504    return (retval);
1505}
1506
1507/* @} - end fileGroup */
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