]>
Dogcows Code - chaz/tar/blob - src/tar.c
c439df5ee304363e36ba8b889c501cdeab79e7e3
1 /* Tar -- a tape archiver.
2 Copyright (C) 1988, 1992 Free Software Foundation
4 This file is part of GNU Tar.
6 GNU Tar is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Tar is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Tar; see the file COPYING. If not, write to
18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
21 * A tar (tape archiver) program.
23 * Written by John Gilmore, ihnp4!hoptoad!gnu, starting 25 Aug 85.
27 #include <sys/types.h> /* Needed for typedefs in tar.h */
32 * The following causes "tar.h" to produce definitions of all the
33 * global variables, rather than just "extern" declarations of them.
35 #define TAR_EXTERN /**/
40 #if defined(_POSIX_VERSION) || defined(DIRENT)
46 #define DP_NAMELEN(x) strlen((x)->d_name)
47 #endif /* _POSIX_VERSION or DIRENT */
48 #if !defined(_POSIX_VERSION) && !defined(DIRENT) && defined(BSD42)
50 #define DP_NAMELEN(x) (x)->d_namlen
51 #endif /* not _POSIX_VERSION and BSD42 */
54 #define DP_NAMELEN(x) (x)->d_namlen
57 #if defined(USG) && !defined(_POSIX_VERSION) && !defined(DIRENT)
59 #define DP_NAMELEN(x) strlen((x)->d_name)
60 #endif /* USG and not _POSIX_VERSION and not DIRENT */
63 * We should use a conversion routine that does reasonable error
64 * checking -- atoi doesn't. For now, punt. FIXME.
69 extern int getoldopt();
70 extern void read_and();
71 extern void list_archive();
72 extern void extract_archive();
73 extern void diff_archive();
74 extern void create_archive();
75 extern void update_archive();
76 extern void junk_archive();
79 extern time_t get_date();
83 static FILE *namef
; /* File to read names from */
84 static char **n_argv
; /* Argv used by name routines */
85 static int n_argc
; /* Argc used by name routines */
86 static char **n_ind
; /* Store an array of names */
87 static int n_indalloc
; /* How big is the array? */
88 static int n_indused
; /* How many entries does it have? */
89 static int n_indscan
; /* How many of the entries have we scanned? */
92 extern FILE *msg_file
;
96 void add_exclude_file();
105 char *un_quote_string();
113 #define DEFBLOCKING 20
117 #define DEF_AR_FILE "tar.out"
120 /* For long options that unconditionally set a single flag, we have getopt
121 do it. For the others, we share the code for the equivalent short
122 named option, the name of which is stored in the otherwise-unused `val'
123 field of the `struct option'; for long options that have no equivalent
124 short option, we use nongraphic characters as pseudo short option
125 characters, starting (for no particular reason) with character 10. */
127 struct option long_options
[] =
129 {"create", 0, 0, 'c'},
130 {"append", 0, 0, 'r'},
131 {"extract", 0, 0, 'x'},
134 {"update", 0, 0, 'u'},
135 {"catenate", 0, 0, 'A'},
136 {"concatenate", 0, 0, 'A'},
137 {"compare", 0, 0, 'd'},
139 {"delete", 0, 0, 14},
143 {"directory", 1, 0, 'C'},
144 {"record-number", 0, &f_sayblock
, 1},
145 {"files-from", 1, 0, 'T'},
146 {"label", 1, 0, 'V'},
147 {"exclude-from", 1, 0, 'X'},
148 {"exclude", 1, 0, 15},
150 {"block-size", 1, 0, 'b'},
151 {"version", 0, 0, 11},
152 {"verbose", 0, 0, 'v'},
153 {"totals", 0, &f_totals
, 1},
155 {"read-full-blocks", 0, &f_reblock
, 1},
156 {"starting-file", 1, 0, 'K'},
157 {"to-stdout", 0, &f_exstdout
, 1},
158 {"ignore-zeros", 0, &f_ignorez
, 1},
159 {"keep-old-files", 0, 0, 'k'},
160 {"uncompress", 0, &f_compress
, 1},
161 {"same-permissions", 0, &f_use_protection
, 1},
162 {"preserve-permissions",0, &f_use_protection
, 1},
163 {"modification-time", 0, &f_modified
, 1},
164 {"preserve", 0, 0, 10},
165 {"same-order", 0, &f_sorted_names
, 1},
166 {"same-owner", 0, &f_do_chown
, 1},
167 {"preserve-order", 0, &f_sorted_names
, 1},
169 {"newer", 1, 0, 'N'},
170 {"after-date", 1, 0, 'N'},
171 {"newer-mtime", 1, 0, 13},
172 {"incremental", 0, 0, 'G'},
173 {"listed-incremental", 1, 0, 'g'},
174 {"multi-volume", 0, &f_multivol
, 1},
175 {"info-script", 1, 0, 'F'},
176 {"absolute-paths", 0, &f_absolute_paths
, 1},
177 {"interactive", 0, &f_confirm
, 1},
178 {"confirmation", 0, &f_confirm
, 1},
180 {"verify", 0, &f_verify
, 1},
181 {"dereference", 0, &f_follow_links
, 1},
182 {"one-file-system", 0, &f_local_filesys
, 1},
183 {"old-archive", 0, 0, 'o'},
184 {"portability", 0, 0, 'o'},
185 {"compress", 0, &f_compress
, 1},
186 {"compress-block", 0, &f_compress
, 2},
187 {"sparse", 0, &f_sparse_files
, 1},
188 {"tape-length", 1, 0, 'L'},
189 {"remove-files", 0, &f_remove_files
, 1},
190 {"ignore-failed-read", 0, &f_ignore_failed_read
, 1},
191 {"checkpoint", 0, &f_checkpoint
, 1},
192 {"show-omitted-dirs", 0, &f_show_omitted_dirs
, 1},
193 {"volno-file", 1, 0, 17},
194 {"force-local", 0, &f_force_local
, 1},
195 {"atime-preserve", 0, &f_atime_preserve
, 1},
201 * Main routine for tar.
208 extern char version_string
[];
210 tar
= argv
[0]; /* JF: was "tar" Set program name */
211 filename_terminator
= '\n';
217 name_init(argc
, argv
);
220 init_volume_number ();
234 fprintf (stderr
, "Total bytes written: %d\n", tot_written
);
239 label_pattern
= (struct re_pattern_buffer
*)
240 ck_malloc (sizeof *label_pattern
);
241 err
= re_compile_pattern (f_volhdr
, strlen (f_volhdr
),
244 fprintf (stderr
,"Bad regular expression: %s\n",
252 read_and(extract_archive
);
257 label_pattern
= (struct re_pattern_buffer
*)
258 ck_malloc (sizeof *label_pattern
);
259 err
= re_compile_pattern (f_volhdr
, strlen (f_volhdr
),
262 fprintf (stderr
,"Bad regular expression: %s\n",
268 read_and(list_archive
);
276 read_and(diff_archive
);
279 fprintf(stderr
,"%s\n",version_string
);
282 msg("you must specify exactly one of the r, c, t, x, or d options\n");
283 fprintf(stderr
,"For more information, type ``%s +help''.\n",tar
);
287 closeout_volume_number ();
294 * Parse the options for tar.
301 register int c
; /* Option letter */
304 /* Set default option values */
305 blocking
= DEFBLOCKING
; /* From Makefile */
306 ar_files
= malloc (sizeof (char *) * 10);
312 while ((c
= getoldopt(argc
, argv
,
313 "-01234567Ab:BcC:df:F:g:GhikK:lL:mMN:oOpPrRsStT:uvV:wWxX:zZ",
314 long_options
, &ind
)) != EOF
) {
316 case 0: /* long options that set a single flag */
319 /* File name or non-parsed option */
326 case 10: /* preserve */
327 f_use_protection
= f_sorted_names
= 1;
330 if(cmd_mode
!=CMD_NONE
)
332 cmd_mode
=CMD_VERSION
;
335 printf("This is GNU tar, the tape archiving program.\n");
342 case 14: /* Delete in the archive */
343 if(cmd_mode
!=CMD_NONE
)
353 case 16: /* -T reads null terminated filenames. */
354 filename_terminator
= '\0';
358 f_volno_file
= optarg
;
361 case 'g': /* We are making a GNU dump; save
362 directories at the beginning of
363 the archive, and include in each
364 directory its contents */
381 /* JF this'll have to be modified for other
382 systems, of course! */
386 d
=getoldopt(argc
,argv
,"lmh");
388 sprintf(buf
,"/dev/rmt/%d%c",c
,d
);
395 if(d
=='l') add
=LOW_NUM
;
396 else if(d
=='m') add
=MID_NUM
;
397 else if(d
=='h') add
=HGH_NUM
;
400 sprintf(buf
,"/dev/rmt%d",add
+c
-'0');
402 if (n_ar_files
== ar_files_len
)
405 * (ar_files_len
*= 2));
406 ar_files
[n_ar_files
++]=buf
;
410 case 'A': /* Arguments are tar files,
411 just cat them onto the end
413 if(cmd_mode
!=CMD_NONE
)
418 case 'b': /* Set blocking factor */
419 blocking
= intconv(optarg
);
422 case 'B': /* Try to reblock input */
423 f_reblock
++; /* For reading 4.2BSD pipes */
426 case 'c': /* Create an archive */
427 if(cmd_mode
!=CMD_NONE
)
435 msg_perror("Can't change directory to %d",optarg
);
439 case 'd': /* Find difference tape/disk */
440 if(cmd_mode
!=CMD_NONE
)
445 case 'f': /* Use ar_file for the archive */
446 if (n_ar_files
== ar_files_len
)
449 * (ar_files_len
*= 2));
451 ar_files
[n_ar_files
++] = optarg
;
455 /* Since -F is only useful with -M , make it implied */
456 f_run_script_at_end
++; /* run this script at the end */
457 info_script
= optarg
; /* of each tape */
461 case 'G': /* We are making a GNU dump; save
462 directories at the beginning of
463 the archive, and include in each
464 directory its contents */
472 f_follow_links
++; /* follow symbolic links */
476 f_ignorez
++; /* Ignore zero records (eofs) */
478 * This can't be the default, because Unix tar
479 * writes two records of zeros, then pads out the
480 * block with garbage.
484 case 'k': /* Don't overwrite files */
486 msg("can't keep old files on this system");
498 case 'l': /* When dumping directories, don't
499 dump files/subdirectories that are
500 on other filesystems. */
505 tape_length
= intconv (optarg
);
512 case 'M': /* Make Multivolume archive:
513 When we can't write any more
514 into the archive, re-open it,
515 and continue writing */
519 case 'N': /* Only write files newer than X */
522 new_time
=get_date(optarg
, (PTR
) 0);
523 if (new_time
== (time_t) -1) {
524 msg("invalid date format `%s'", optarg
);
529 case 'o': /* Generate old archive */
530 if(f_gnudump
/* || f_dironly */)
547 case 'r': /* Append files to the archive */
548 if(cmd_mode
!=CMD_NONE
)
554 f_sayblock
++; /* Print block #s for debug */
555 break; /* of bad tar archives */
558 f_sorted_names
++; /* Names to extr are sorted */
561 case 'S': /* deal with sparse files */
565 if(cmd_mode
!=CMD_NONE
)
568 f_verbose
++; /* "t" output == "cv" or "xv" */
576 case 'u': /* Append files to the archive that
577 aren't there, or are newer than the
578 copy in the archive */
579 if(cmd_mode
!=CMD_NONE
)
600 case 'x': /* Extract files from the archive */
601 if(cmd_mode
!=CMD_NONE
)
603 cmd_mode
=CMD_EXTRACT
;
608 add_exclude_file(optarg
);
611 case 'z': /* Easy to type */
612 case 'Z': /* Like the filename extension .Z */
618 msg("Unknown option. Use '%s +help' for a complete list of options.", tar
);
624 blocksize
= blocking
* RECORDSIZE
;
628 ar_files
[0] = getenv("TAPE"); /* From environment, or */
629 if (ar_files
[0] == 0)
630 ar_files
[0] = DEF_AR_FILE
; /* From Makefile */
632 if (n_ar_files
> 1 && !f_multivol
)
634 msg ("Multiple archive files requires --multi-volume\n");
641 * Print as much help as the user's gonna get.
643 * We have to sprinkle in the KLUDGE lines because too many compilers
644 * cannot handle character strings longer than about 512 bytes. Yuk!
645 * In particular, MS-DOS and Xenix MSC and PDP-11 V7 Unix have this
651 puts("choose one of the following:");
654 --concatenate append tar files to an archive\n\
655 -c, --create create a new archive\n\
657 --compare find differences between archive and file system\n\
658 --delete delete from the archive (not for use on mag tapes!)\n\
659 -r, --append append files to the end of an archive\n\
660 -t, --list list the contents of an archive\n\
661 -u, --update only append files that are newer than copy in archive\n\
663 --get extract files from an archive\n",stdout
);
667 --atime-preserve don't change access times on dumped files\n\
668 -b, --block-size N block size of Nx512 bytes (default N=%d)\n", DEFBLOCKING
);
670 -B, --read-full-blocks reblock as we read (for reading 4.2BSD pipes)\n\
671 -C, --directory DIR change to directory DIR\n\
672 --checkpoint print directory names while reading the archive\n\
673 ", stdout
); /* KLUDGE */ fprintf(stdout
, "\
674 -f, --file [HOSTNAME:]F use archive file or device F (default %s)\n",
675 DEF_AR_FILE
); fputs("\
676 --force-local archive file is local even if has a colon\n\
677 -F, --info-script F run script at end of each tape (implies -M)\n\
678 -G, --incremental create/list/extract old GNU-format incremental backup\n\
679 -g, --listed-incremental F create/list/extract new GNU-format incremental backup\n\
680 -h, --dereference don't dump symlinks; dump the files they point to\n\
681 -i, --ignore-zeros ignore blocks of zeros in archive (normally mean EOF)\n\
682 --ignore-failed-read don't exit with non-zero status on unreadable files\n\
683 -k, --keep-old-files keep existing files; don't overwrite them from archive\n\
684 -K, --starting-file FILE begin at FILE in the archive\n\
685 -l, --one-file-system stay in local file system when creating an archive\n\
686 -L, --tape-length LENGTH change tapes after writing LENGTH\n\
687 ", stdout
); /* KLUDGE */ fputs("\
688 -m, --modification-time don't extract file modified time\n\
689 -M, --multi-volume create/list/extract multi-volume archive\n\
690 -N, --after-date DATE,\n\
691 --newer DATE only store files newer than DATE\n\
692 -o, --old-archive,\n\
693 --portability write a V7 format archive, rather than ANSI format\n\
694 -O, --to-stdout extract files to standard output\n\
695 -p, --same-permissions,\n\
696 --preserve-permissions extract all protection information\n\
697 -P, --absolute-paths don't strip leading `/'s from file names\n\
698 --preserve like -p -s\n\
699 ", stdout
); /* KLUDGE */ fputs("\
700 -R, --record-number show record number within archive with each message\n\
701 --remove-files remove files after adding them to the archive\n\
703 --preserve-order list of names to extract is sorted to match archive\n\
704 --same-owner create extracted files with the same ownership \n\
705 -S, --sparse handle sparse files efficiently\n\
706 -T, --files-from F get names to extract or create from file F\n\
707 --null -T reads null-terminated names, disable -C\n\
708 --totals print total bytes written with --create\n\
709 -v, --verbose verbosely list files processed\n\
710 -V, --label NAME create archive with volume name NAME\n\
711 --version print tar program version number\n\
712 -w, --interactive,\n\
713 --confirmation ask for confirmation for every action\n\
714 ", stdout
); /* KLUDGE */ fputs("\
715 -W, --verify attempt to verify the archive after writing it\n\
716 --exclude FILE exclude file FILE\n\
717 -X, --exclude-from FILE exclude files listed in FILE\n\
718 -z, -Z, --compress,\n\
719 --uncompress filter the archive through compress\n\
720 -[0-7][lmh] specify drive and density\n\
728 if(n_indalloc
==n_indused
) {
730 n_ind
=(char **)(n_indused
? ck_realloc(n_ind
,n_indalloc
*sizeof(char *)) : ck_malloc(n_indalloc
*sizeof(char *)));
732 n_ind
[n_indused
++]=name
;
736 * Set up to gather file names for tar.
738 * They can either come from stdin or from argv.
741 name_init(argc
, argv
)
748 msg("too many args with -T option");
751 if (!strcmp(name_file
, "-")) {
754 namef
= fopen(name_file
, "r");
756 msg_perror("can't open file %s",name_file
);
761 /* Get file names from argv, after options. */
767 /* Read the next filename read from STREAM and null-terminate it.
768 Put it into BUFFER, reallocating and adjusting *PBUFFER_SIZE if necessary.
769 Return the new value for BUFFER, or NULL at end of file. */
772 read_name_from_file (buffer
, pbuffer_size
, stream
)
774 size_t *pbuffer_size
;
778 register int indx
= 0;
779 register size_t buffer_size
= *pbuffer_size
;
781 while ((c
= getc (stream
)) != EOF
&& c
!= filename_terminator
)
783 if (indx
== buffer_size
)
785 buffer_size
+= NAMSIZ
;
786 buffer
= ck_realloc (buffer
, buffer_size
+ 2);
790 if (indx
== 0 && c
== EOF
)
792 if (indx
== buffer_size
)
794 buffer_size
+= NAMSIZ
;
795 buffer
= ck_realloc (buffer
, buffer_size
+ 2);
798 *pbuffer_size
= buffer_size
;
803 * Get the next name from argv or the name file.
805 * Result is in static storage and can't be relied upon across two calls.
807 * If CHANGE_DIRS is non-zero, treat a filename of the form "-C" as
808 * meaning that the next filename is the name of a directory to change to.
809 * If `filename_terminator' is '\0', CHANGE_DIRS is effectively always 0.
813 name_next(change_dirs
)
816 static char *buffer
; /* Holding pattern */
817 static int buffer_siz
;
819 register char *q
= 0;
820 register int next_name_is_dir
= 0;
821 extern char *un_quote_string();
824 buffer
=ck_malloc(NAMSIZ
+2);
827 if (filename_terminator
== '\0')
831 if(n_indscan
<n_indused
)
832 p
=n_ind
[n_indscan
++];
833 else if (optind
< n_argc
)
834 /* Names come from argv, after options */
838 msg("Missing filename after -C");
842 /* JF trivial support for -C option. I don't know if
843 chdir'ing at this point is dangerous or not.
844 It seems to work, which is all I ask. */
845 if(change_dirs
&& !q
&& p
[0]=='-' && p
[1]=='C' && p
[2]=='\0') {
851 msg_perror("Can't chdir to %s",p
);
855 /* End of JF quick -C hack */
857 if(f_exclude
&& check_exclude(p
))
859 return un_quote_string(p
);
861 while (p
= read_name_from_file (buffer
, &buffer_siz
, namef
)) {
864 continue; /* Ignore empty lines. */
865 q
= p
+ strlen (p
) - 1;
866 while (q
> p
&& *q
== '/') /* Zap trailing "/"s. */
868 if (change_dirs
&& next_name_is_dir
== 0
869 && p
[0] == '-' && p
[1] == 'C' && p
[2] == '\0') {
870 next_name_is_dir
= 1;
873 if (next_name_is_dir
) {
875 msg_perror ("Can't change to directory %s", p
);
876 next_name_is_dir
= 0;
879 if(f_exclude
&& check_exclude(p
))
881 return un_quote_string(p
);
888 * Close the name file, if any.
894 if (namef
!= NULL
&& namef
!= stdin
) fclose(namef
);
899 * Gather names in a list for scanning.
900 * Could hash them later if we really care.
902 * If the names are already sorted to match the archive, we just
903 * read them one by one. name_gather reads the first one, and it
904 * is called by name_match as appropriate to read the next ones.
905 * At EOF, the last name read is just left in the buffer.
906 * This option lets users of small machines extract an arbitrary
907 * number of files by doing "tar t" and editing down the list of files.
913 static struct name
*namebuf
; /* One-name buffer */
915 static char *chdir_name
;
917 if (f_sorted_names
) {
920 namebuf
=(struct name
*)ck_malloc(sizeof(struct name
)+NAMSIZ
);
924 if(*p
=='-' && p
[1]=='C' && p
[2]=='\0') {
925 chdir_name
=name_next(0);
928 msg("Missing file name after -C");
931 namebuf
->change_dir
=chdir_name
;
933 namebuf
->length
= strlen(p
);
934 if (namebuf
->length
>= namelen
) {
935 namebuf
=(struct name
*)ck_realloc(namebuf
,sizeof(struct name
)+namebuf
->length
);
936 namelen
=namebuf
->length
;
938 strncpy(namebuf
->name
, p
, namebuf
->length
);
939 namebuf
->name
[ namebuf
->length
] = 0;
940 namebuf
->next
= (struct name
*)NULL
;
948 /* Non sorted names -- read them all in */
949 while (p
= name_next(0))
954 * Add a name to the namelist.
958 char *name
; /* pointer to name */
960 register int i
; /* Length of string */
961 register struct name
*p
; /* Current struct pointer */
962 static char *chdir_name
;
965 if(name
[0]=='-' && name
[1]=='C' && name
[2]=='\0') {
966 chdir_name
=name_next(0);
969 msg("Missing file name after -C");
972 if(chdir_name
[0]!='/') {
973 char *path
= ck_malloc(PATH_MAX
);
974 #if defined(__MSDOS__) || defined(USG) || defined(_POSIX_VERSION)
975 if(!getcwd(path
,PATH_MAX
))
976 msg("Couldn't get current directory.");
982 msg("Couldn't get current directory: %s",path
);
986 chdir_name
=new_name(path
,chdir_name
);
995 p
= (struct name
*)malloc((unsigned)(sizeof(struct name
) + i
));
998 p
= (struct name
*)malloc ((unsigned)(sizeof (struct name
)));
1001 msg("cannot allocate mem for name '%s'.",name
);
1003 msg("cannot allocate mem for chdir record.");
1006 p
->next
= (struct name
*)NULL
;
1011 strncpy(p
->name
, name
, i
);
1012 p
->name
[i
] = '\0'; /* Null term */
1017 p
->regexp
= 0; /* Assume not a regular expression */
1018 p
->firstch
= 1; /* Assume first char is literal */
1019 p
->change_dir
=chdir_name
;
1020 p
->dir_contents
= 0; /* JF */
1023 if (index(name
, '*') || index(name
, '[') || index(name
, '?')) {
1024 p
->regexp
= 1; /* No, it's a regexp */
1025 if (name
[0] == '*' || name
[0] == '[' || name
[0] == '?')
1026 p
->firstch
= 0; /* Not even 1st char literal */
1030 if (namelast
) namelast
->next
= p
;
1032 if (!namelist
) namelist
= p
;
1036 * Return nonzero if name P (from an archive) matches any name from
1037 * the namelist, zero if not.
1043 register struct name
*nlp
;
1047 if (0 == (nlp
= namelist
)) /* Empty namelist is easy */
1051 if (nlp
->change_dir
&& chdir (nlp
->change_dir
))
1052 msg_perror ("Can't change to directory %d", nlp
->change_dir
);
1057 for (; nlp
!= 0; nlp
= nlp
->next
) {
1058 /* If first chars don't match, quick skip */
1059 if (nlp
->firstch
&& nlp
->name
[0] != p
[0])
1062 /* Regular expressions (shell globbing, actually). */
1064 if (wildmat(p
, nlp
->name
)) {
1065 nlp
->found
= 1; /* Remember it matched */
1067 free((void *)namelist
);
1070 if(nlp
->change_dir
&& chdir(nlp
->change_dir
))
1071 msg_perror("Can't change to directory %s",nlp
->change_dir
);
1072 return 1; /* We got a match */
1077 /* Plain Old Strings */
1078 if (nlp
->length
<= len
/* Archive len >= specified */
1079 && (p
[nlp
->length
] == '\0' || p
[nlp
->length
] == '/')
1080 /* Full match on file/dirname */
1081 && strncmp(p
, nlp
->name
, nlp
->length
) == 0) /* Name compare */
1083 nlp
->found
= 1; /* Remember it matched */
1085 free((void *)namelist
);
1088 if(nlp
->change_dir
&& chdir(nlp
->change_dir
))
1089 msg_perror("Can't change to directory %s",nlp
->change_dir
);
1090 return 1; /* We got a match */
1095 * Filename from archive not found in namelist.
1096 * If we have the whole namelist here, just return 0.
1097 * Otherwise, read the next name in and compare it.
1098 * If this was the last name, namelist->found will remain on.
1099 * If not, we loop to compare the newly read name.
1101 if (f_sorted_names
&& namelist
->found
) {
1102 name_gather(); /* Read one more */
1103 if (!namelist
->found
) goto again
;
1110 * Print the names of things in the namelist that were not matched.
1115 register struct name
*nlp
,*next
;
1118 for (nlp
= namelist
; nlp
!= 0; nlp
= next
) {
1121 msg("%s not found in archive",nlp
->name
);
1124 * We could free() the list, but the process is about
1125 * to die anyway, so save some CPU time. Amigas and
1126 * other similarly broken software will need to waste
1130 if (!f_sorted_names
)
1134 namelist
= (struct name
*)NULL
;
1135 namelast
= (struct name
*)NULL
;
1137 if (f_sorted_names
) {
1138 while (0 != (p
= name_next(1)))
1139 msg("%s not found in archive", p
);
1143 /* These next routines were created by JF */
1151 /* This is like name_match(), except that it returns a pointer to the name
1152 it matched, and doesn't set ->found The caller will have to do that
1153 if it wants to. Oh, and if the namelist is empty, it returns 0, unlike
1154 name_match(), which returns TRUE */
1160 register struct name
*nlp
;
1164 if (0 == (nlp
= namelist
)) /* Empty namelist is easy */
1167 for (; nlp
!= 0; nlp
= nlp
->next
) {
1168 /* If first chars don't match, quick skip */
1169 if (nlp
->firstch
&& nlp
->name
[0] != p
[0])
1172 /* Regular expressions */
1174 if (wildmat(p
, nlp
->name
))
1175 return nlp
; /* We got a match */
1179 /* Plain Old Strings */
1180 if (nlp
->length
<= len
/* Archive len >= specified */
1181 && (p
[nlp
->length
] == '\0' || p
[nlp
->length
] == '/')
1182 /* Full match on file/dirname */
1183 && strncmp(p
, nlp
->name
, nlp
->length
) == 0) /* Name compare */
1184 return nlp
; /* We got a match */
1188 * Filename from archive not found in namelist.
1189 * If we have the whole namelist here, just return 0.
1190 * Otherwise, read the next name in and compare it.
1191 * If this was the last name, namelist->found will remain on.
1192 * If not, we loop to compare the newly read name.
1194 if (f_sorted_names
&& namelist
->found
) {
1195 name_gather(); /* Read one more */
1196 if (!namelist
->found
) goto again
;
1198 return (struct name
*) 0;
1201 /* This returns a name from the namelist which doesn't have ->found set.
1202 It sets ->found before returning, so successive calls will find and return
1203 all the non-found names in the namelist */
1205 struct name
*gnu_list_name
;
1211 gnu_list_name
= namelist
;
1212 while(gnu_list_name
&& gnu_list_name
->found
)
1213 gnu_list_name
=gnu_list_name
->next
;
1215 gnu_list_name
->found
++;
1216 if(gnu_list_name
->change_dir
)
1217 if(chdir(gnu_list_name
->change_dir
)<0)
1218 msg_perror("can't chdir to %s",gnu_list_name
->change_dir
);
1219 return gnu_list_name
->name
;
1230 for(n
=namelist
;n
;n
=n
->next
)
1240 path_buf
=(char *)malloc(strlen(path
)+strlen(name
)+2);
1242 msg("Can't allocate memory for name '%s/%s",path
,name
);
1245 (void) sprintf(path_buf
,"%s/%s",path
,name
);
1249 /* returns non-zero if the luser typed 'y' or 'Y', zero otherwise. */
1252 confirm(action
,file
)
1253 char *action
, *file
;
1256 static FILE *confirm_file
= 0;
1257 extern FILE *msg_file
;
1258 extern char TTY_NAME
[];
1260 fprintf(msg_file
,"%s %s?", action
, file
);
1263 confirm_file
= (archive
== 0) ? fopen(TTY_NAME
, "r") : stdin
;
1265 msg("Can't read confirmation from user");
1269 c
=getc(confirm_file
);
1270 for(nl
= c
; nl
!= '\n' && nl
!= EOF
; nl
= getc(confirm_file
))
1272 return (c
=='y' || c
=='Y');
1280 int size_exclude
= 0;
1281 int free_exclude
= 0;
1283 char **re_exclude
= 0;
1284 int size_re_exclude
= 0;
1285 int free_re_exclude
= 0;
1292 /* char **tmp_ptr;*/
1295 un_quote_string(name
);
1296 size_buf
= strlen(name
);
1299 x_buffer
= (char *)ck_malloc(size_buf
+1024);
1301 } else if(free_x_buffer
<=size_buf
) {
1305 old_x_buffer
= x_buffer
;
1306 x_buffer
= (char *)ck_realloc(x_buffer
,size_x_buffer
+1024);
1307 free_x_buffer
= 1024;
1308 for(tmp_ptr
=exclude
;tmp_ptr
<exclude
+size_exclude
;tmp_ptr
++)
1309 *tmp_ptr
= x_buffer
+ ((*tmp_ptr
) - old_x_buffer
);
1310 for(tmp_ptr
=re_exclude
;tmp_ptr
<re_exclude
+size_re_exclude
;tmp_ptr
++)
1311 *tmp_ptr
= x_buffer
+ ((*tmp_ptr
) - old_x_buffer
);
1314 if(is_regex(name
)) {
1315 if(free_re_exclude
==0) {
1316 re_exclude
= (char **)(re_exclude
? ck_realloc(re_exclude
,(size_re_exclude
+32)*sizeof(char *)) : ck_malloc(sizeof(char *)*32));
1317 free_re_exclude
+=32;
1319 re_exclude
[size_re_exclude
]=x_buffer
+size_x_buffer
;
1323 if(free_exclude
==0) {
1324 exclude
=(char **)(exclude
? ck_realloc(exclude
,(size_exclude
+32)*sizeof(char *)) : ck_malloc(sizeof(char *)*32));
1327 exclude
[size_exclude
]=x_buffer
+size_x_buffer
;
1331 strcpy(x_buffer
+size_x_buffer
,name
);
1332 size_x_buffer
+=size_buf
+1;
1333 free_x_buffer
-=size_buf
+1;
1337 add_exclude_file(file
)
1342 extern char *rindex();
1344 if(strcmp(file
, "-"))
1347 /* Let's hope the person knows what they're doing. */
1348 /* Using -X - -T - -f - will get you *REALLY* strange
1353 msg_perror("can't open %s",file
);
1356 while(fgets(buf
,1024,fp
)) {
1360 end_str
=rindex(buf
,'\n');
1373 return index(str
,'*') || index(str
,'[') || index(str
,'?');
1376 /* Returns non-zero if the file 'name' should not be added/extracted */
1383 extern char *strstr();
1385 for(n
=0;n
<size_re_exclude
;n
++) {
1386 if(wildmat(name
,re_exclude
[n
]))
1389 for(n
=0;n
<size_exclude
;n
++) {
1390 /* Accept the output from strstr only if it is the last
1391 part of the string. There is certainly a faster way to
1393 if( (str
=strstr(name
,exclude
[n
]))
1394 && (str
==name
|| str
[-1]=='/')
1395 && str
[strlen(exclude
[n
])]=='\0')
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