1 /*
2  * $OpenBSD: common.h,v 1.26 2006/03/11 19:41:30 otto Exp $
3  * $DragonFly: src/usr.bin/patch/common.h,v 1.5 2008/08/10 23:50:12 joerg Exp $
4  * $NetBSD: common.h,v 1.22 2021/05/25 11:25:59 cjep 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 #include <sys/types.h>
34 
35 #include <stdbool.h>
36 #include <stdint.h>
37 
38 #define DEBUGGING
39 
40 /* constants */
41 
42 #define MAXHUNKSIZE 100000    /* is this enough lines? */
43 #define INITHUNKMAX 125                 /* initial dynamic allocation size */
44 #define INITLINELEN 8192
45 #define BUFFERSIZE 1024
46 #define LINENUM_MAX LONG_MAX
47 
48 #define SCCSPREFIX "s."
49 #define GET "get -e %s"
50 #define SCCSDIFF "get -p %s | diff - %s >/dev/null"
51 
52 #define RCSSUFFIX ",v"
53 #define CHECKOUT "/usr/bin/co"
54 #define RCSDIFF "/usr/bin/rcsdiff"
55 
56 #define ORIGEXT ".orig"
57 #define REJEXT ".rej"
58 
59 /* handy definitions */
60 
61 #define strNE(s1,s2) (strcmp(s1, s2))
62 #define strEQ(s1,s2) (!strcmp(s1, s2))
63 #define strnNE(s1,s2,l) (strncmp(s1, s2, l))
64 #define strnEQ(s1,s2,l) (!strncmp(s1, s2, l))
65 
66 /* typedefs */
67 
68 typedef long    LINENUM;      /* must be signed */
69 
70 /* globals */
71 
72 extern mode_t       filemode;
73 
74 extern char         *buf;               /* general purpose buffer */
75 extern size_t       bufsz;              /* general purpose buffer size */
76 
77 extern bool         using_plan_a;       /* try to keep everything in memory */
78 extern bool         out_of_mem;         /* ran out of memory in plan a */
79 
80 #define MAXFILEC 2
81 
82 extern char         *filearg[MAXFILEC];
83 extern bool         ok_to_create_file;
84 extern char         *outname;
85 extern char         *origprae;
86 
87 extern char         *TMPOUTNAME;
88 extern char         *TMPINNAME;
89 extern char         *TMPREJNAME;
90 extern char         *TMPPATNAME;
91 extern bool         toutkeep;
92 extern bool         trejkeep;
93 
94 #ifdef DEBUGGING
95 extern int          debug;
96 #endif
97 
98 extern bool         force;
99 extern bool         batch;
100 extern bool         verbose;
101 extern bool         reverse;
102 extern bool         noreverse;
103 extern bool         skip_rest_of_patch;
104 extern int          strippath;
105 extern bool         canonicalize;
106 /* TRUE if -C was specified on command line.  */
107 extern bool         check_only;
108 extern bool         warn_on_invalid_line;
109 extern bool         last_line_missing_eol;
110 
111 
112 #define CONTEXT_DIFF 1
113 #define NORMAL_DIFF 2
114 #define ED_DIFF 3
115 #define NEW_CONTEXT_DIFF 4
116 #define UNI_DIFF 5
117 
118 extern int          diff_type;
119 extern char         *revision;          /* prerequisite revision, if any */
120 extern LINENUM      input_lines;        /* how long is input file in lines */
121 
122 extern int          posix;
123 
124