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0e479ac8f7
When set, it forces all timestamps and owners to zero and modes to 0644. Useful for producing libraries that are bitwise identical across multiple build runs. Submitted by: Erik Cederstrand Reviewed by: Kai Wang
126 lines
4.4 KiB
C
126 lines
4.4 KiB
C
/*-
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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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* in this position and unchanged.
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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(S) ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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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, EX_SOFTWARE, 0, "%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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uint32_t s_cnt; /* current number of symbols. */
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uint32_t *s_so; /* symbol offset table. */
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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 bsdar_errc(struct bsdar *, int _eval, int _code,
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const char *fmt, ...);
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void bsdar_warnc(struct bsdar *, int _code, const char *fmt, ...);
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void ar_mode_d(struct bsdar *bsdar);
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void ar_mode_m(struct bsdar *bsdar);
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void ar_mode_p(struct bsdar *bsdar);
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void ar_mode_q(struct bsdar *bsdar);
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void ar_mode_r(struct bsdar *bsdar);
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void ar_mode_s(struct bsdar *bsdar);
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void ar_mode_t(struct bsdar *bsdar);
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void ar_mode_x(struct bsdar *bsdar);
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void ar_mode_A(struct bsdar *bsdar);
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void ar_mode_script(struct bsdar *ar);
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