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Annotation of src/usr.bin/compress/compress.h, Revision 1.8

1.8     ! otto        1: /*     $OpenBSD: compress.h,v 1.7 2003/09/05 04:46:35 tedu Exp $       */
1.1       mickey      2:
                      3: /*
                      4:  * Copyright (c) 1997 Michael Shalayeff
                      5:  * All rights reserved.
                      6:  *
                      7:  * Redistribution and use in source and binary forms, with or without
                      8:  * modification, are permitted provided that the following conditions
                      9:  * are met:
                     10:  * 1. Redistributions of source code must retain the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer.
                     12:  * 2. Redistributions in binary form must reproduce the above copyright
                     13:  *    notice, this list of conditions and the following disclaimer in the
                     14:  *    documentation and/or other materials provided with the distribution.
                     15:  *
1.3       mickey     16:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     17:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1.1       mickey     18:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     19:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     20:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     21:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     22:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     23:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     24:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     25:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     26:  * SUCH DAMAGE.
                     27:  *
                     28:  */
                     29:
1.8     ! otto       30: #include <sys/stat.h>
        !            31:
1.6       millert    32: struct z_info {
                     33:        u_int32_t mtime;        /* timestamp */
                     34:        u_int32_t crc;          /* crc */
                     35:        u_int32_t hlen;         /* header length */
                     36:        u_int64_t total_in;     /* # bytes in */
                     37:        u_int64_t total_out;    /* # bytes out */
                     38: };
                     39:
1.3       mickey     40: /*
                     41:  * making it any bigger does not affect perfomance very much.
                     42:  * actually this value is just a little bit better than 8192.
                     43:  */
1.1       mickey     44: #define Z_BUFSIZE 16384
                     45:
1.6       millert    46: /*
                     47:  * exit codes for compress
                     48:  */
                     49: #define        SUCCESS 0
                     50: #define        FAILURE 1
                     51: #define        WARNING 2
                     52:
1.3       mickey     53: extern const char main_rcsid[], z_rcsid[], gz_rcsid[], pkzip_rcsid[],
1.7       tedu       54:     pack_rcsid[], lzh_rcsid[], null_rcsid[];
                     55: extern char null_magic[];
1.3       mickey     56:
1.6       millert    57: extern void *z_open(int, const char *, char *, int, u_int32_t, int);
1.2       millert    58: extern FILE *zopen(const char *, const char *,int);
                     59: extern int zread(void *, char *, int);
                     60: extern int zwrite(void *, const char *, int);
1.8     ! otto       61: extern int z_close(void *, struct z_info *, const char *, struct stat *);
1.6       millert    62:
1.3       mickey     63:
1.6       millert    64: extern void *gz_open(int, const char *, char *, int, u_int32_t, int);
1.2       millert    65: extern int gz_read(void *, char *, int);
                     66: extern int gz_write(void *, const char *, int);
1.8     ! otto       67: extern int gz_close(void *, struct z_info *, const char *, struct stat *);
1.2       millert    68: extern int gz_flush(void *, int);
1.3       mickey     69:
1.6       millert    70: extern void *lzh_open(int, const char *, char *, int, u_int32_t, int);
1.3       mickey     71: extern int lzh_read(void *, char *, int);
                     72: extern int lzh_write(void *, const char *, int);
1.6       millert    73: extern int lzh_close(void *, struct z_info *);
1.3       mickey     74: extern int lzh_flush(void *, int);
1.7       tedu       75:
                     76: extern void *null_open(int, const char *, char *, int, u_int32_t, int);
                     77: extern int null_read(void *, char *, int);
                     78: extern int null_write(void *, const char *, int);
1.8     ! otto       79: extern int null_close(void *, struct z_info *, const char *, struct stat *);
1.7       tedu       80: extern int null_flush(void *, int);
1.8     ! otto       81:
        !            82: extern void setfile(const char *, int, struct stat *);