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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License, Version 1.0 only
      6  * (the "License").  You may not use this file except in compliance
      7  * with the License.
      8  *
      9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     10  * or http://www.opensolaris.org/os/licensing.
     11  * See the License for the specific language governing permissions
     12  * and limitations under the License.
     13  *
     14  * When distributing Covered Code, include this CDDL HEADER in each
     15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     16  * If applicable, add the following below this CDDL HEADER, with the
     17  * fields enclosed by brackets "[]" replaced with your own identifying
     18  * information: Portions Copyright [yyyy] [name of copyright owner]
     19  *
     20  * CDDL HEADER END
     21  */
     22 /*
     23  * Copyright 2001 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
     28 /*	  All Rights Reserved  	*/
     29 
     30 /*
     31  * University Copyright- Copyright (c) 1982, 1986, 1988
     32  * The Regents of the University of California
     33  * All Rights Reserved
     34  *
     35  * University Acknowledgment- Portions of this document are derived from
     36  * software developed by the University of California, Berkeley, and its
     37  * contributors.
     38  */
     39 
     40 #ifndef	_DIFF_H
     41 #define	_DIFF_H
     42 
     43 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     44 
     45 
     46 #ifdef	__cplusplus
     47 extern "C" {
     48 #endif
     49 
     50 /*
     51  * Output format options
     52  */
     53 
     54 int	opt;
     55 
     56 #define	D_NORMAL	0	/* Normal output */
     57 #define	D_EDIT		-1	/* Editor script out */
     58 #define	D_REVERSE	1	/* Reverse editor script */
     59 #define	D_CONTEXT	2	/* Diff with context */
     60 #define	D_IFDEF		3	/* Diff with merged #ifdef's */
     61 #define	D_NREVERSE	4	/* Reverse ed script with numbered */
     62 				/* lines and no trailing . */
     63 
     64 /*
     65  * Constant declarations
     66  */
     67 #define	HALFMASK	0xf
     68 
     69 #define	prints(s)	fputs(s, stdout)
     70 
     71 #define	MAX_CONTEXT	128
     72 
     73 /*
     74  * diff - directory comparison
     75  */
     76 #define	d_flags	d_ino
     77 
     78 #define	ONLY	1		/* Only in this directory */
     79 #define	SAME	2		/* Both places and same */
     80 #define	DIFFER	4		/* Both places and different */
     81 #define	DIRECT	8		/* Directory */
     82 
     83 struct dir {
     84 	ulong_t		d_ino;
     85 	int16_t		d_reclen;
     86 	int16_t		d_namlen;
     87 	char		*d_entry;
     88 };
     89 
     90 
     91 /*
     92  * type definitions
     93  */
     94 
     95 struct cand {
     96 	int x;
     97 	int y;
     98 	int pred;
     99 } cand;
    100 
    101 struct line {
    102 	int serial;
    103 	int value;
    104 } *file[2], line;
    105 
    106 /*
    107  * The following struct is used to record change information when
    108  * doing a "context" diff.  (see routine "change" to understand the
    109  * highly mneumonic field names)
    110  */
    111 struct context_vec {
    112 	int	a;	/* start line in old file */
    113 	int	b;	/* end line in old file */
    114 	int	c;	/* start line in new file */
    115 	int	d;	/* end line in new file */
    116 };
    117 
    118 
    119 /*
    120  * Algorithm related options
    121  */
    122 int bflag = 0;
    123 int tflag = 0;
    124 int wflag = 0;
    125 int iflag = 0;
    126 int rflag = 0;
    127 int lflag = 0;
    128 int sflag = 0;
    129 int hflag = 0;
    130 int uflag = 0;
    131 
    132 /*
    133  * Variables for D_IFDEF option.
    134  */
    135 int wantelses = 0;	/* used with D_IFDEF */
    136 char *ifdef1, *ifdef2;  /* hold the ifdef strings */
    137 char *endifname;
    138 int inifdef = 0;
    139 
    140 /*
    141  * Variables for -C (-c) context option.
    142  */
    143 int context = 0;	/* number of lines specfied with the C flag */
    144 
    145 char *empty = "";	/* the empty string */
    146 
    147 char **diffargv;	/* keep track of argv for diffdir */
    148 
    149 char start[256];	/* specify where to start, used with -S */
    150 
    151 FILE *input[2];		/* two input files */
    152 int  len[2];
    153 struct line *sfile[2];  /* shortened by pruning common prefix and suffix */
    154 int  slen[2];
    155 
    156 struct stat stb1;
    157 
    158 /*
    159  * Input file names.
    160  * With diffdir, file1 and file2 are allocated BUFSIZ space,
    161  * and padded with a '/', and then efile0 and efile1 point after
    162  * the '/'.
    163  */
    164 char	*file1, *file2, *efile1, *efile2;
    165 struct	stat stb1, stb2;
    166 
    167 /*
    168  * input_file1 and input_file2 are to display
    169  * the filenames in the output
    170  */
    171 char	*input_file1, *input_file2;
    172 
    173 char pr[] = "/usr/bin/pr";
    174 char diff[] = "/usr/bin/diff";
    175 char diffh[] = "/usr/lib/diffh";
    176 int status = 2;
    177 int anychange = 0;
    178 
    179 struct	context_vec	*context_vec_start,
    180 			*context_vec_end,
    181 			*context_vec_ptr;
    182 
    183 char tempfile[2][16];	/* used when comparing against std input */
    184 			/* or char special devices */
    185 int whichtemp;
    186 
    187 #ifdef	__cplusplus
    188 }
    189 #endif
    190 
    191 #endif	/* _DIFF_H */
    192