2 * Copyright (c) 2003-2007 Tim Kientzle
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #include "bsdtar_platform.h"
31 #define DEFAULT_BYTES_PER_BLOCK (20*512)
32 #define ENV_READER_OPTIONS "TAR_READER_OPTIONS"
33 #define ENV_WRITER_OPTIONS "TAR_WRITER_OPTIONS"
34 #define IGNORE_WRONG_MODULE_NAME "__ignore_wrong_module_name__,"
38 * The internal state for the "bsdtar" program.
40 * Keeping all of the state in a structure like this simplifies memory
41 * leak testing (at exit, anything left on the heap is suspect). A
42 * pointer to this structure is passed to most bsdtar internal
47 const char *filename; /* -f filename */
48 char *pending_chdir; /* -C dir */
49 const char *names_from_file; /* -T file */
50 int bytes_per_block; /* -b block_size */
51 int bytes_in_last_block; /* See -b handling. */
53 int extract_flags; /* Flags for extract operation */
54 int readdisk_flags; /* Flags for read disk operation */
55 int strip_components; /* Remove this many leading dirs */
57 const char *gname; /* --gname */
59 const char *uname; /* --uname */
60 const char *passphrase; /* --passphrase */
61 char mode; /* Program mode: 'c', 't', 'r', 'u', 'x' */
62 char symlink_mode; /* H or L, per BSD conventions */
63 char option_absolute_paths; /* -P */
64 char option_chroot; /* --chroot */
65 char option_fast_read; /* --fast-read */
66 const char *option_options; /* --options */
67 char option_ignore_zeros; /* --ignore-zeros */
68 char option_interactive; /* -w */
69 char option_no_owner; /* -o */
70 char option_no_subdirs; /* -n */
71 char option_numeric_owner; /* --numeric-owner */
72 char option_null; /* --null */
73 char option_stdout; /* -O */
74 char option_totals; /* --totals */
75 char option_unlink_first; /* -U */
76 char option_warn_links; /* --check-links */
77 char day_first; /* show day before month in -tv output */
78 struct creation_set *cset;
80 /* Option parser state */
84 /* If >= 0, then close this when done. */
87 /* Miscellaneous state information */
91 size_t gs_width; /* For 'list_item' in read.c */
92 size_t u_width; /* for 'list_item' in read.c */
93 uid_t user_uid; /* UID running this program */
94 int return_value; /* Value returned by main() */
95 char warned_lead_slash; /* Already displayed warning */
96 char next_line_is_dir; /* Used for -C parsing in -cT */
99 * Data for various subsystems. Full definitions are located in
100 * the file where they are used.
102 struct archive *diskreader; /* for write.c */
103 struct archive_entry_linkresolver *resolver; /* for write.c */
104 struct archive_dir *archive_dir; /* for write.c */
105 struct name_cache *gname_cache; /* for write.c */
106 char *buff; /* for write.c */
107 size_t buff_size; /* for write.c */
108 int first_fs; /* for write.c */
109 struct archive *matching; /* for matching.c */
110 struct security *security; /* for read.c */
111 struct name_cache *uname_cache; /* for write.c */
112 struct siginfo_data *siginfo; /* for siginfo.c */
113 struct substitution *substitution; /* for subst.c */
114 char *ppbuff; /* for util.c */
117 /* Fake short equivalents for long options that otherwise lack them. */
119 OPTION_B64ENCODE = 1,
122 OPTION_CLEAR_NOCHANGE_FFLAGS,
123 OPTION_DISABLE_COPYFILE,
130 OPTION_HFS_COMPRESSION,
133 OPTION_KEEP_NEWER_FILES,
140 OPTION_NEWER_CTIME_THAN,
142 OPTION_NEWER_MTIME_THAN,
144 OPTION_NOPRESERVE_HFS_COMPRESSION,
145 OPTION_NO_SAME_OWNER,
146 OPTION_NO_SAME_PERMISSIONS,
149 OPTION_NUMERIC_OWNER,
151 OPTION_OLDER_CTIME_THAN,
153 OPTION_OLDER_MTIME_THAN,
154 OPTION_ONE_FILE_SYSTEM,
159 OPTION_STRIP_COMPONENTS,
163 OPTION_USE_COMPRESS_PROGRAM,
168 int bsdtar_getopt(struct bsdtar *);
169 void do_chdir(struct bsdtar *);
170 int edit_pathname(struct bsdtar *, struct archive_entry *);
171 int need_report(void);
172 int pathcmp(const char *a, const char *b);
173 void safe_fprintf(FILE *, const char *fmt, ...);
174 void set_chdir(struct bsdtar *, const char *newdir);
175 const char *tar_i64toa(int64_t);
176 void tar_mode_c(struct bsdtar *bsdtar);
177 void tar_mode_r(struct bsdtar *bsdtar);
178 void tar_mode_t(struct bsdtar *bsdtar);
179 void tar_mode_u(struct bsdtar *bsdtar);
180 void tar_mode_x(struct bsdtar *bsdtar);
182 int yes(const char *fmt, ...);
184 #if defined(HAVE_REGEX_H) || defined(HAVE_PCREPOSIX_H)
185 void add_substitution(struct bsdtar *, const char *);
186 int apply_substitution(struct bsdtar *, const char *, char **, int, int);
187 void cleanup_substitution(struct bsdtar *);
190 void cset_add_filter(struct creation_set *, const char *);
191 void cset_add_filter_program(struct creation_set *, const char *);
192 int cset_auto_compress(struct creation_set *, const char *);
193 void cset_free(struct creation_set *);
194 const char * cset_get_format(struct creation_set *);
195 struct creation_set *cset_new(void);
196 int cset_read_support_filter_program(struct creation_set *,
198 void cset_set_format(struct creation_set *, const char *);
199 int cset_write_add_filters(struct creation_set *,
200 struct archive *, const void **);
202 const char * passphrase_callback(struct archive *, void *);
203 void passphrase_free(char *);
204 void list_item_verbose(struct bsdtar *, FILE *,
205 struct archive_entry *);