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120 lines
4.2 KiB
C
120 lines
4.2 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2007 Kai Wang
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#define BSDAR_VERSION "1.1.0"
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/*
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* ar(1) options.
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*/
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#define AR_A 0x0001 /* position-after */
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#define AR_B 0x0002 /* position-before */
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#define AR_C 0x0004 /* creating new archive */
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#define AR_CC 0x0008 /* do not overwrite when extracting */
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#define AR_J 0x0010 /* bzip2 compression */
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#define AR_O 0x0020 /* preserve original mtime when extracting */
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#define AR_S 0x0040 /* write archive symbol table */
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#define AR_SS 0x0080 /* do not write archive symbol table */
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#define AR_TR 0x0100 /* only keep first 15 chars for member name */
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#define AR_U 0x0200 /* only extract or update newer members.*/
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#define AR_V 0x0400 /* verbose mode */
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#define AR_Z 0x0800 /* gzip compression */
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#define AR_D 0x1000 /* insert dummy mode, mtime, uid and gid */
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#define DEF_BLKSZ 10240 /* default block size */
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/*
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* Convenient wrapper for general libarchive error handling.
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*/
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#define AC(CALL) do { \
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if ((CALL)) \
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bsdar_errc(bsdar, archive_errno(a), "%s", \
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archive_error_string(a)); \
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} while (0)
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/*
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* In-memory representation of archive member(object).
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*/
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struct ar_obj {
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char *name; /* member name */
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void *maddr; /* mmap start address */
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uid_t uid; /* user id */
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gid_t gid; /* group id */
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mode_t md; /* octal file permissions */
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size_t size; /* member size */
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time_t mtime; /* modification time */
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int fd; /* file descriptor */
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dev_t dev; /* inode's device */
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ino_t ino; /* inode's number */
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TAILQ_ENTRY(ar_obj) objs;
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};
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/*
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* Structure encapsulates the "global" data for "ar" program.
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*/
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struct bsdar {
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const char *filename; /* archive name. */
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const char *addlib; /* target of ADDLIB. */
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const char *posarg; /* position arg for modifiers -a, -b. */
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char mode; /* program mode */
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int options; /* command line options */
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const char *progname; /* program name */
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int argc;
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char **argv;
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/*
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* Fields for the archive string table.
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*/
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char *as; /* buffer for archive string table. */
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size_t as_sz; /* current size of as table. */
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size_t as_cap; /* capacity of as table buffer. */
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/*
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* Fields for the archive symbol table.
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*/
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uint64_t s_cnt; /* current number of symbols. */
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uint64_t *s_so; /* symbol offset table. */
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uint64_t s_so_max; /* maximum symbol offset. */
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size_t s_so_cap; /* capacity of so table buffer. */
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char *s_sn; /* symbol name table */
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size_t s_sn_cap; /* capacity of sn table buffer. */
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size_t s_sn_sz; /* current size of sn table. */
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/* Current member's offset (relative to the end of pseudo members.) */
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off_t rela_off;
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TAILQ_HEAD(, ar_obj) v_obj; /* object(member) list */
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};
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void ar_mode_script(struct bsdar *ar);
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int ar_read_archive(struct bsdar *ar, int mode, FILE *out);
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int ar_write_archive(struct bsdar *ar, int mode);
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void bsdar_errc(struct bsdar *, int _code, const char *fmt, ...) __dead2;
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void bsdar_warnc(struct bsdar *, int _code, const char *fmt, ...);
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