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Annotation of src/usr.bin/compress/compress.h, Revision 1.6

1.6     ! millert     1: /*     $OpenBSD: compress.h,v 1.5 2003/07/11 02:31:18 millert 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:
1.6     ! millert    30: struct z_info {
        !            31:        u_int32_t mtime;        /* timestamp */
        !            32:        u_int32_t crc;          /* crc */
        !            33:        u_int32_t hlen;         /* header length */
        !            34:        u_int64_t total_in;     /* # bytes in */
        !            35:        u_int64_t total_out;    /* # bytes out */
        !            36: };
        !            37:
1.3       mickey     38: /*
                     39:  * making it any bigger does not affect perfomance very much.
                     40:  * actually this value is just a little bit better than 8192.
                     41:  */
1.1       mickey     42: #define Z_BUFSIZE 16384
                     43:
1.6     ! millert    44: /*
        !            45:  * exit codes for compress
        !            46:  */
        !            47: #define        SUCCESS 0
        !            48: #define        FAILURE 1
        !            49: #define        WARNING 2
        !            50:
1.3       mickey     51: extern const char main_rcsid[], z_rcsid[], gz_rcsid[], pkzip_rcsid[],
                     52:     pack_rcsid[], lzh_rcsid[];
                     53:
1.6     ! millert    54: extern void *z_open(int, const char *, char *, int, u_int32_t, int);
1.2       millert    55: extern FILE *zopen(const char *, const char *,int);
                     56: extern int zread(void *, char *, int);
                     57: extern int zwrite(void *, const char *, int);
1.6     ! millert    58: extern int z_close(void *, struct z_info *);
        !            59:
1.3       mickey     60:
1.6     ! millert    61: extern void *gz_open(int, const char *, char *, int, u_int32_t, int);
1.2       millert    62: extern int gz_read(void *, char *, int);
                     63: extern int gz_write(void *, const char *, int);
1.6     ! millert    64: extern int gz_close(void *, struct z_info *);
1.2       millert    65: extern int gz_flush(void *, int);
1.3       mickey     66:
1.6     ! millert    67: extern void *lzh_open(int, const char *, char *, int, u_int32_t, int);
1.3       mickey     68: extern int lzh_read(void *, char *, int);
                     69: extern int lzh_write(void *, const char *, int);
1.6     ! millert    70: extern int lzh_close(void *, struct z_info *);
1.3       mickey     71: extern int lzh_flush(void *, int);