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cmd/diff/diff.h

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+/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
+/*	  All Rights Reserved  	*/
+
+/*	THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T	*/
+/*	The copyright notice above does not evidence any   	*/
+/*	actual or intended publication of such source code.	*/
+
+#ident	"@(#)diff.h	1.6	94/09/06 SMI"	/* SVr4.0 1.3	*/
+
+/*
+ *		PROPRIETARY NOTICE (Combined)
+ *
+ * This source code is unpublished proprietary information
+ * constituting, or derived under license from AT&T's UNIX(r) System V.
+ * In addition, portions of such source code were derived from Berkeley
+ * 4.3 BSD under license from the Regents of the University of
+ * California.
+ *
+ *		Copyright Notice
+ *
+ * Notice of copyright on this source code product does not indicate
+ * publication.
+ *
+ *	(c) 1986,1987,1988,1989  Sun Microsystems, Inc
+ *	(c) 1983,1984,1985,1986,1987,1988,1989  AT&T.
+ *		All rights reserved.
+ */
+
+/*
+ * diff - common declarations
+ */
+
+
+void done();
+
+/*
+ * Output format options
+ */
+int	opt;
+
+#define	D_NORMAL	0	/* Normal output */
+#define	D_EDIT		-1	/* Editor script out */
+#define	D_REVERSE	1	/* Reverse editor script */
+#define	D_CONTEXT	2	/* Diff with context */
+#define	D_IFDEF		3	/* Diff with merged #ifdef's */
+#define	D_NREVERSE	4	/* Reverse ed script with numbered */
+				/* lines and no trailing . */
+
+/*
+ * Constant declarations
+ */
+#define	HALFMASK	0xf
+
+#define	prints(s)	fputs(s, stdout)
+
+#define	MAX_CONTEXT	128
+
+/*
+ * diff - directory comparison
+ */
+#define	d_flags	d_ino
+
+#define	ONLY	1		/* Only in this directory */
+#define	SAME	2		/* Both places and same */
+#define	DIFFER	4		/* Both places and different */
+#define	DIRECT	8		/* Directory */
+
+struct dir {
+	u_long	d_ino;
+	short	d_reclen;
+	short	d_namlen;
+	char	*d_entry;
+};
+
+
+/*
+ * type definitions
+ */
+
+struct cand {
+	int x;
+	int y;
+	int pred;
+} cand;
+
+struct line {
+	int serial;
+	int value;
+} *file[2], line;
+
+/*
+ * The following struct is used to record change information when
+ * doing a "context" diff.  (see routine "change" to understand the
+ * highly mneumonic field names)
+ */
+struct context_vec {
+	int	a;	/* start line in old file */
+	int	b;	/* end line in old file */
+	int	c;	/* start line in new file */
+	int	d;	/* end line in new file */
+};
+
+
+/*
+ * Algorithm related options
+ */
+int bflag = 0;
+int tflag = 0;
+int wflag = 0;
+int iflag = 0;
+int rflag = 0;
+int lflag = 0;
+int sflag = 0;
+int hflag = 0;
+
+/*
+ * Variables for D_IFDEF option.
+ */
+int wantelses = 0;	/* used with D_IFDEF */
+char *ifdef1, *ifdef2;  /* hold the ifdef strings */
+char *endifname;
+int inifdef = 0;
+
+/*
+ * Variables for -C (-c) context option.
+ */
+int context = 0;	/* number of lines specfied with the C flag */
+
+char *empty = "";	/* the empty string */
+
+char **diffargv;	/* keep track of argv for diffdir */
+
+char start[256];	/* specify where to start, used with -S */
+
+FILE *input[2];		/* two input files */
+int  len[2];
+struct line *sfile[2];  /* shortened by pruning common prefix and suffix */
+int  slen[2];
+
+struct stat stb0, stb1;
+
+/*
+ * Input file names.
+ * With diffdir, file1 and file2 are allocated BUFSIZ space,
+ * and padded with a '/', and then efile0 and efile1 point after
+ * the '/'.
+ */
+char	*file1, *file2, *efile1, *efile2;
+struct	stat stb1, stb2;
+char	*file1, *file2, *efile1, *efile2;
+
+char pr[] = "/usr/bin/pr";
+char diff[] = "/usr/bin/diff";
+char diffh[] = "/usr/lib/diffh";
+int status = 2;
+int anychange = 0;
+
+struct	context_vec	*context_vec_start,
+			*context_vec_end,
+			*context_vec_ptr;
+
+char tempfile[2][16];	/* used when comparing against std input */
+			/* or char special devices */
+int whichtemp;
+char *dummy;		/* used in resetting storage search ptr */