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"
33 #define DEFAULT_BYTES_PER_BLOCK (20*512)
36 * The internal state for the "bsdtar" program.
38 * Keeping all of the state in a structure like this simplifies memory
39 * leak testing (at exit, anything left on the heap is suspect). A
40 * pointer to this structure is passed to most bsdtar internal
45 const char *filename; /* -f filename */
46 const char *create_format; /* -F format */
47 char *pending_chdir; /* -C dir */
48 const char *names_from_file; /* -T file */
49 time_t newer_ctime_sec; /* --newer/--newer-than */
50 long newer_ctime_nsec; /* --newer/--newer-than */
51 time_t newer_mtime_sec; /* --newer-mtime */
52 long newer_mtime_nsec; /* --newer-mtime-than */
53 int bytes_per_block; /* -b block_size */
55 int extract_flags; /* Flags for extract operation */
56 int strip_components; /* Remove this many leading dirs */
58 const char *gname; /* --gname */
60 const char *uname; /* --uname */
61 char mode; /* Program mode: 'c', 't', 'r', 'u', 'x' */
62 char symlink_mode; /* H or L, per BSD conventions */
63 char create_compression; /* j, y, or z */
64 const char *compress_program;
65 char option_absolute_paths; /* -P */
66 char option_chroot; /* --chroot */
67 char option_dont_traverse_mounts; /* --one-file-system */
68 char option_fast_read; /* --fast-read */
69 const char *option_options; /* --options */
70 char option_honor_nodump; /* --nodump */
71 char option_interactive; /* -w */
72 char option_no_owner; /* -o */
73 char option_no_subdirs; /* -n */
74 char option_null; /* --null */
75 char option_stdout; /* -O */
76 char option_totals; /* --totals */
77 char option_unlink_first; /* -U */
78 char option_warn_links; /* --check-links */
79 char day_first; /* show day before month in -tv output */
81 /* If >= 0, then close this when done. */
84 /* Miscellaneous state information */
88 size_t gs_width; /* For 'list_item' in read.c */
89 size_t u_width; /* for 'list_item' in read.c */
90 uid_t user_uid; /* UID running this program */
91 int return_value; /* Value returned by main() */
92 char warned_lead_slash; /* Already displayed warning */
93 char next_line_is_dir; /* Used for -C parsing in -cT */
96 * Data for various subsystems. Full definitions are located in
97 * the file where they are used.
99 struct archive *diskreader; /* for write.c */
100 struct archive_entry_linkresolver *resolver; /* for write.c */
101 struct archive_dir *archive_dir; /* for write.c */
102 struct name_cache *gname_cache; /* for write.c */
103 char *buff; /* for write.c */
104 struct lafe_matching *matching; /* for matching.c */
105 struct security *security; /* for read.c */
106 struct name_cache *uname_cache; /* for write.c */
107 struct siginfo_data *siginfo; /* for siginfo.c */
108 struct substitution *substitution; /* for subst.c */
111 /* Fake short equivalents for long options that otherwise lack them. */
113 OPTION_CHECK_LINKS = 1,
121 OPTION_KEEP_NEWER_FILES,
124 OPTION_NEWER_CTIME_THAN,
126 OPTION_NEWER_MTIME_THAN,
128 OPTION_NO_SAME_OWNER,
129 OPTION_NO_SAME_PERMISSIONS,
131 OPTION_NUMERIC_OWNER,
132 OPTION_ONE_FILE_SYSTEM,
136 OPTION_STRIP_COMPONENTS,
140 OPTION_USE_COMPRESS_PROGRAM,
145 int bsdtar_getopt(struct bsdtar *);
146 void do_chdir(struct bsdtar *);
147 int edit_pathname(struct bsdtar *, struct archive_entry *);
148 int need_report(void);
149 int pathcmp(const char *a, const char *b);
150 void safe_fprintf(FILE *, const char *fmt, ...);
151 void set_chdir(struct bsdtar *, const char *newdir);
152 const char *tar_i64toa(int64_t);
153 void tar_mode_c(struct bsdtar *bsdtar);
154 void tar_mode_r(struct bsdtar *bsdtar);
155 void tar_mode_t(struct bsdtar *bsdtar);
156 void tar_mode_u(struct bsdtar *bsdtar);
157 void tar_mode_x(struct bsdtar *bsdtar);
159 int yes(const char *fmt, ...);
162 void add_substitution(struct bsdtar *, const char *);
163 int apply_substitution(struct bsdtar *, const char *, char **, int);
164 void cleanup_substitution(struct bsdtar *);