1 /*
2  * $OpenBSD: pch.h,v 1.9 2003/10/31 20:20:45 millert Exp $
3  * $DragonFly: src/usr.bin/patch/pch.h,v 1.1 2004/09/24 18:44:28 joerg Exp $
4  * $NetBSD: pch.h,v 1.11 2024/07/12 15:48:39 manu Exp $
5  */
6 
7 /*
8  * patch - a program to apply diffs to original files
9  *
10  * Copyright 1986, Larry Wall
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following condition is met:
14  * 1. Redistributions of source code must retain the above copyright notice,
15  * this condition and the following disclaimer.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
21  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
23  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
24  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * -C option added in 1998, original code by Marc Espie, based on FreeBSD
30  * behaviour
31  */
32 
33 #define OLD_FILE    0
34 #define NEW_FILE    1
35 #define INDEX_FILE  2
36 #define MAX_FILE    3
37 
38 struct file_name {
39           char *path;
40           bool exists;
41 };
42 
43 void                re_patch(void);
44 void                open_patch_file(const char *);
45 void                set_hunkmax(void);
46 bool                there_is_another_patch(void);
47 bool                another_hunk(void);
48 bool                pch_swap(void);
49 char                *pfetch(LINENUM);
50 ssize_t             pch_line_len(LINENUM);
51 LINENUM             pch_first(void);
52 LINENUM             pch_ptrn_lines(void);
53 LINENUM             pch_newfirst(void);
54 LINENUM             pch_repl_lines(void);
55 LINENUM             pch_end(void);
56 LINENUM             pch_context(void);
57 LINENUM             pch_hunk_beg(void);
58 char                pch_char(LINENUM);
59 void                do_ed_script(void);
60