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Dogcows Code - chaz/tar/blob - lib/exclude.c
1 /* exclude.c -- exclude file names
2 Copyright 1992, 1993, 1994, 1997 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; see the file COPYING.
16 If not, write to the Free Software Foundation,
17 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
19 /* Written by Paul Eggert <eggert@twinsun.com> */
32 #include <sys/types.h>
34 void *xmalloc
PARAMS ((size_t));
35 void *xrealloc
PARAMS ((void *, size_t));
37 /* Keep track of excluded file name patterns. */
49 struct exclude
*ex
= (struct exclude
*) xmalloc (sizeof (struct exclude
));
50 ex
->exclude_count
= 0;
51 ex
->exclude_alloc
= 64;
52 ex
->exclude
= (char const **) xmalloc (ex
->exclude_alloc
* sizeof (char *));
57 excluded_filename (struct exclude
const *ex
, char const *f
)
59 char const * const *exclude
= ex
->exclude
;
60 int exclude_count
= ex
->exclude_count
;
63 for (i
= 0; i
< exclude_count
; i
++)
64 if (fnmatch (exclude
[i
], f
, 0) == 0)
71 add_exclude (struct exclude
*ex
, char const *pattern
)
73 if (ex
->exclude_alloc
<= ex
->exclude_count
)
74 ex
->exclude
= (char const **) xrealloc (ex
->exclude
,
75 ((ex
->exclude_alloc
*= 2)
78 ex
->exclude
[ex
->exclude_count
++] = pattern
;
82 add_exclude_file (struct exclude
*ex
, char const *filename
, char line_end
)
84 int use_stdin
= filename
[0] == '-' && !filename
[1];
90 size_t buf_alloc
= 1024;
97 else if (! (in
= fopen (filename
, "r")))
100 buf
= xmalloc (buf_alloc
);
102 while ((c
= getc (in
)) != EOF
)
104 buf
[buf_count
++] = c
;
105 if (buf_count
== buf_alloc
)
106 buf
= xrealloc (buf
, buf_alloc
*= 2);
109 buf
= xrealloc (buf
, buf_count
+ 1);
114 if (!use_stdin
&& fclose (in
) != 0)
117 for (pattern
= p
= buf
, lim
= buf
+ buf_count
; p
<= lim
; p
++)
118 if (p
< lim
? *p
== line_end
: buf
< p
&& p
[-1])
121 add_exclude (ex
, pattern
);
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