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Date:      Tue, 24 Jul 2012 01:36:48 +0000
From:      jhagewood@FreeBSD.org
To:        svn-soc-all@FreeBSD.org
Subject:   socsvn commit: r239721 - in soc2012/jhagewood/diff: . diff
Message-ID:  <20120724013648.EAFD3106564A@hub.freebsd.org>

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Author: jhagewood
Date: Tue Jul 24 01:36:48 2012
New Revision: 239721
URL: http://svnweb.FreeBSD.org/socsvn/?view=rev&rev=239721

Log:
  Begun zdiff intergration in diff.

Modified:
  soc2012/jhagewood/diff/TODO
  soc2012/jhagewood/diff/diff/diff.c
  soc2012/jhagewood/diff/diff/diff.h
  soc2012/jhagewood/diff/diff/diffreg.c
  soc2012/jhagewood/diff/diff/pathnames.h
  soc2012/jhagewood/diff/hagewood-diff.patch

Modified: soc2012/jhagewood/diff/TODO
==============================================================================
--- soc2012/jhagewood/diff/TODO	Mon Jul 23 23:40:13 2012	(r239720)
+++ soc2012/jhagewood/diff/TODO	Tue Jul 24 01:36:48 2012	(r239721)
@@ -20,6 +20,8 @@
 --help					COMPLETE
 Fix non-ascii character diffs		COMPLETE		Changed name of asciifile() to istextfile() and detects if file is binary.
 Test script				COMPLETE 
+Support for zdiff			IN PROGRESS		
+
 
 Notes: 
 

Modified: soc2012/jhagewood/diff/diff/diff.c
==============================================================================
--- soc2012/jhagewood/diff/diff/diff.c	Mon Jul 23 23:40:13 2012	(r239720)
+++ soc2012/jhagewood/diff/diff/diff.c	Tue Jul 24 01:36:48 2012	(r239721)
@@ -46,6 +46,7 @@
 int	aflag, bflag, cflag, dflag, Eflag, iflag, lflag, Nflag, Pflag, pflag, rflag;
 int	sflag, tflag, Tflag, wflag, Toflag, Fromflag;
 int	Bflag, yflag;
+int filebehave;
 int strip_cr, suppress_cl, tabsize = 8;
 char ignore_file_case = 0;
 int	format, context, status;
@@ -204,10 +205,22 @@
 main(int argc, char **argv)
 {
 	char *ep, **oargv, *optfile;
+	const char *pn;
 	long l;
 	int ch, lastch, gotstdin, prevoptind, newarg;
 	int oargc;
 	
+	/* Check what is the program name of the binary.  In this
+	   way we can have all the funcionalities in one binary
+	   without the need of scripting and using ugly hacks. */
+	pn = getprogname();
+	if (pn[0] == 'z') {
+		filebehave = FILE_GZIP;
+		pn += 1;
+	} else {
+		filebehave = FILE_NORMAL;
+	}
+	
 	oargv = argv;
 	oargc = argc;
 	gotstdin = 0;

Modified: soc2012/jhagewood/diff/diff/diff.h
==============================================================================
--- soc2012/jhagewood/diff/diff/diff.h	Mon Jul 23 23:40:13 2012	(r239720)
+++ soc2012/jhagewood/diff/diff/diff.h	Tue Jul 24 01:36:48 2012	(r239721)
@@ -72,6 +72,12 @@
 #define	D_SKIPPED1	8	/* path1 was a special file */
 #define	D_SKIPPED2	9	/* path2 was a special file */
 
+/*
+ * File input types
+ */
+#define FILE_NORMAL	0
+#define FILE_GZIP	1
+
 struct excludes {
 	char		*pattern;
 	struct excludes	*next;
@@ -81,6 +87,7 @@
 		 sflag, tflag, Tflag, Toflag, wflag;
 extern int	 Bflag, strip_cr, suppress_cl, tabsize;
 extern int	 format, context, status;
+extern int	 filebehave;
 extern char	 ignore_file_case;
 extern char	*start, *ifdefname, *diffargs, *label[2], *ignore_pats;
 extern struct	 stat stb1, stb2;

Modified: soc2012/jhagewood/diff/diff/diffreg.c
==============================================================================
--- soc2012/jhagewood/diff/diff/diffreg.c	Mon Jul 23 23:40:13 2012	(r239720)
+++ soc2012/jhagewood/diff/diff/diffreg.c	Tue Jul 24 01:36:48 2012	(r239721)
@@ -84,6 +84,11 @@
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
+#include <zlib.h>
+
+#ifndef WITHOUT_BZIP2
+#include <bzlib.h>
+#endif
 
 #include "diff.h"
 #include "pathnames.h"
@@ -330,8 +335,12 @@
 			}
 		} else if (strcmp(file1, "-") == 0)
 			f1 = stdin;
-		else
-			f1 = fopen(file1, "r");
+		else {
+			if (filebehave == FILE_NORMAL) 
+				f1 = fopen(file1, "r");
+			if (filebehave == FILE_GZIP)
+				f1 = gzopen(file1, "r");
+		}
 	}
 	if (f1 == NULL) {
 		warn("%s", file1);
@@ -351,8 +360,12 @@
 			}
 		} else if (strcmp(file2, "-") == 0)
 			f2 = stdin;
-		else
-			f2 = fopen(file2, "r");
+		else {
+			if (filebehave == FILE_NORMAL) 
+				f2 = fopen(file2, "r");
+			if (filebehave == FILE_GZIP)
+				f2 = gzopen(file2, "r");
+		}
 	}
 	if (f2 == NULL) {
 		warn("%s", file2);
@@ -1351,7 +1364,7 @@
 static int
 istextfile(FILE *f)
 {
-	int	i, check_size;
+	int	i;
 	char ch;
 
 	if (aflag || f == NULL)

Modified: soc2012/jhagewood/diff/diff/pathnames.h
==============================================================================
--- soc2012/jhagewood/diff/diff/pathnames.h	Mon Jul 23 23:40:13 2012	(r239720)
+++ soc2012/jhagewood/diff/diff/pathnames.h	Tue Jul 24 01:36:48 2012	(r239721)
@@ -23,5 +23,4 @@
 #include <paths.h>
 
 #define	_PATH_PR	"/usr/bin/pr"
-#define _PATH_DIFF	"/usr/bin/diff"
 #define _PATH_SDIFF	"/usr/bin/sdiff"

Modified: soc2012/jhagewood/diff/hagewood-diff.patch
==============================================================================
--- soc2012/jhagewood/diff/hagewood-diff.patch	Mon Jul 23 23:40:13 2012	(r239720)
+++ soc2012/jhagewood/diff/hagewood-diff.patch	Tue Jul 24 01:36:48 2012	(r239721)
@@ -1,6 +1,6 @@
-diff -rupN jhagewood/diff/diff-orig/diff.c jhagewood/diff/diff/diff.c
---- jhagewood/diff/diff-orig/diff.c	2012-07-14 03:47:28.000000000 -0400
-+++ jhagewood/diff/diff/diff.c	2012-07-16 05:03:03.000000000 -0400
+diff -rupN diff-orig/diff.c diff/diff.c
+--- diff-orig/diff.c	2012-07-23 02:07:00.000000000 -0400
++++ diff/diff.c	2012-07-23 21:17:49.000000000 -0400
 @@ -1,4 +1,4 @@
 -/*-
 +/*
@@ -27,7 +27,7 @@
  
  #include <sys/param.h>
  #include <sys/stat.h>
-@@ -45,20 +43,20 @@ __FBSDID("$FreeBSD$");
+@@ -45,20 +43,21 @@ __FBSDID("$FreeBSD$");
  #include "diff.h"
  #include "pathnames.h"
  
@@ -41,6 +41,7 @@
 +int	aflag, bflag, cflag, dflag, Eflag, iflag, lflag, Nflag, Pflag, pflag, rflag;
 +int	sflag, tflag, Tflag, wflag, Toflag, Fromflag;
 +int	Bflag, yflag;
++int filebehave;
 +int strip_cr, suppress_cl, tabsize = 8;
 +char ignore_file_case = 0;
 +int	format, context, status;
@@ -56,7 +57,7 @@
  
  
  /* Options which exceed manageable alphanumeric assignments */ 
-@@ -69,107 +67,151 @@ enum 
+@@ -69,107 +68,163 @@ enum 
    OPT_STRIPCR,
    OPT_NORMAL,
    OPT_LEFTC,
@@ -261,10 +262,22 @@
 -	int	 oargc;
 -
 +	char *ep, **oargv, *optfile;
++	const char *pn;
 +	long l;
 +	int ch, lastch, gotstdin, prevoptind, newarg;
 +	int oargc;
 +	
++	/* Check what is the program name of the binary.  In this
++	   way we can have all the funcionalities in one binary
++	   without the need of scripting and using ugly hacks. */
++	pn = getprogname();
++	if (pn[0] == 'z') {
++		filebehave = FILE_GZIP;
++		pn += 1;
++	} else {
++		filebehave = FILE_NORMAL;
++	}
++	
  	oargv = argv;
  	oargc = argc;
  	gotstdin = 0;
@@ -272,7 +285,7 @@
  
  	lastch = '\0';
  	prevoptind = 1;
-@@ -197,6 +239,7 @@ main(int argc, char **argv)
+@@ -197,6 +252,7 @@ main(int argc, char **argv)
  			break;
  		case 'C':
  		case 'c':
@@ -280,7 +293,7 @@
  			format = D_CONTEXT;
  			if (optarg != NULL) {
  				l = strtol(optarg, &ep, 10);
-@@ -213,6 +256,9 @@ main(int argc, char **argv)
+@@ -213,6 +269,9 @@ main(int argc, char **argv)
  		case 'd':
  			dflag = 1;
  			break;
@@ -290,7 +303,7 @@
  		case 'e':
  			format = D_EDIT;
  			break;
-@@ -284,7 +330,7 @@ main(int argc, char **argv)
+@@ -284,7 +343,7 @@ main(int argc, char **argv)
  		case 'v':
  			printf("FreeBSD diff 2.8.7\n");
  			exit(0);
@@ -299,7 +312,7 @@
  			wflag = 1;
  			break;
  		case 'X':
-@@ -296,15 +342,48 @@ main(int argc, char **argv)
+@@ -296,15 +355,48 @@ main(int argc, char **argv)
  		case 'y':
  			yflag = 1;
  			break;
@@ -356,7 +369,7 @@
  		case OPT_STRIPCR:
  			strip_cr=1;
  			break;
-@@ -315,11 +394,10 @@ main(int argc, char **argv)
+@@ -315,11 +407,10 @@ main(int argc, char **argv)
  			ignore_file_case = 0;
  			break; 
  		case OPT_HELP:
@@ -370,7 +383,7 @@
  			break;
  		default:
  			usage();
-@@ -328,22 +406,22 @@ main(int argc, char **argv)
+@@ -328,22 +419,22 @@ main(int argc, char **argv)
  		lastch = ch;
  		newarg = optind != prevoptind;
  		prevoptind = optind;
@@ -399,7 +412,7 @@
  	}
  
  	/*
-@@ -380,7 +458,10 @@ main(int argc, char **argv)
+@@ -380,7 +471,10 @@ main(int argc, char **argv)
  	set_argstr(oargv, argv);
  	if (S_ISDIR(stb1.st_mode) && S_ISDIR(stb2.st_mode)) {
  		if (format == D_IFDEF)
@@ -411,7 +424,7 @@
  		diffdir(argv[0], argv[1]);
  	} else {
  		if (S_ISDIR(stb1.st_mode)) {
-@@ -393,8 +474,26 @@ main(int argc, char **argv)
+@@ -393,8 +487,26 @@ main(int argc, char **argv)
  			if (stat(argv[1], &stb2) < 0)
  				err(2, "%s", argv[1]);
  		}
@@ -440,7 +453,7 @@
  	}
  	exit(status);
  }
-@@ -402,11 +501,10 @@ main(int argc, char **argv)
+@@ -402,11 +514,10 @@ main(int argc, char **argv)
  void *
  emalloc(size_t n)
  {
@@ -453,7 +466,7 @@
  	if ((p = malloc(n)) == NULL)
  		errx(2, NULL);
  	return (p);
-@@ -415,7 +513,7 @@ emalloc(size_t n)
+@@ -415,7 +526,7 @@ emalloc(size_t n)
  void *
  erealloc(void *p, size_t n)
  {
@@ -462,7 +475,7 @@
  
  	if (n == 0)
  		errx(2, NULL);
-@@ -431,13 +529,12 @@ erealloc(void *p, size_t n)
+@@ -431,13 +542,12 @@ erealloc(void *p, size_t n)
  int
  easprintf(char **ret, const char *fmt, ...)
  {
@@ -478,7 +491,7 @@
  	if (len < 0 || *ret == NULL)
  		errx(2, NULL);
  	return (len);
-@@ -446,20 +543,21 @@ easprintf(char **ret, const char *fmt, .
+@@ -446,20 +556,21 @@ easprintf(char **ret, const char *fmt, .
  char *
  estrdup(const char *str)
  {
@@ -505,7 +518,7 @@
  
  	argsize = 4 + *ave - *av + 1;
  	diffargs = emalloc(argsize);
-@@ -475,12 +573,12 @@ set_argstr(char **av, char **ave)
+@@ -475,12 +586,12 @@ set_argstr(char **av, char **ave)
  /*
   * Read in an excludes file and push each line.
   */
@@ -522,7 +535,7 @@
  
  	if (strcmp(file, "-") == 0)
  		fp = stdin;
-@@ -501,7 +599,7 @@ read_excludes_file(char *file)
+@@ -501,7 +612,7 @@ read_excludes_file(char *file)
  /*
   * Push a pattern onto the excludes list.
   */
@@ -531,7 +544,7 @@
  push_excludes(char *pattern)
  {
  	struct excludes	*entry;
-@@ -512,10 +610,10 @@ push_excludes(char *pattern)
+@@ -512,10 +623,10 @@ push_excludes(char *pattern)
  	excludes_list = entry;
  }
  
@@ -544,7 +557,7 @@
  
  	if (ignore_pats == NULL)
  		ignore_pats = estrdup(pattern);
-@@ -531,6 +629,7 @@ push_ignore_pats(char *pattern)
+@@ -531,6 +642,7 @@ push_ignore_pats(char *pattern)
  void
  print_only(const char *path, size_t dirlen, const char *entry)
  {
@@ -552,7 +565,7 @@
  	if (dirlen > 1)
  		dirlen--;
  	printf("Only in %.*s: %s\n", (int)dirlen, path, entry);
-@@ -539,52 +638,54 @@ print_only(const char *path, size_t dirl
+@@ -539,52 +651,54 @@ print_only(const char *path, size_t dirl
  void
  print_status(int val, char *path1, char *path2, char *entry)
  {
@@ -619,16 +632,16 @@
  	(void)fprintf(stderr,
  	    "usage: diff [-abdilpqTtw] [-I pattern] [-c | -e | -f | -n | -u]\n"
  	    "            [-L label] file1 file2\n"
-@@ -595,5 +696,5 @@ usage(void)
+@@ -595,5 +709,5 @@ usage(void)
  	    "            [-L label] [-S name] [-X file] [-x pattern] dir1 dir2\n"
  	    "       diff [-v]\n");
  
 -	exit(2);
 +	exit(1);
  }
-diff -rupN jhagewood/diff/diff-orig/diff.h jhagewood/diff/diff/diff.h
---- jhagewood/diff/diff-orig/diff.h	2012-07-14 03:47:28.000000000 -0400
-+++ jhagewood/diff/diff/diff.h	2012-07-14 03:47:29.000000000 -0400
+diff -rupN diff-orig/diff.h diff/diff.h
+--- diff-orig/diff.h	2012-07-23 02:07:00.000000000 -0400
++++ diff/diff.h	2012-07-23 21:13:42.000000000 -0400
 @@ -48,6 +48,8 @@
  #define	D_NREVERSE	5	/* Reverse ed script with numbered
  				   lines and no trailing . */
@@ -638,7 +651,18 @@
  
  /*
   * Output flags
-@@ -75,9 +77,9 @@ struct excludes {
+@@ -70,15 +72,22 @@
+ #define	D_SKIPPED1	8	/* path1 was a special file */
+ #define	D_SKIPPED2	9	/* path2 was a special file */
+ 
++/*
++ * File input types
++ */
++#define FILE_NORMAL	0
++#define FILE_GZIP	1
++
+ struct excludes {
+ 	char		*pattern;
  	struct excludes	*next;
  };
  
@@ -649,11 +673,13 @@
 +		 sflag, tflag, Tflag, Toflag, wflag;
 +extern int	 Bflag, strip_cr, suppress_cl, tabsize;
  extern int	 format, context, status;
++extern int	 filebehave;
  extern char	 ignore_file_case;
  extern char	*start, *ifdefname, *diffargs, *label[2], *ignore_pats;
-diff -rupN jhagewood/diff/diff-orig/diffdir.c jhagewood/diff/diff/diffdir.c
---- jhagewood/diff/diff-orig/diffdir.c	2012-07-14 03:47:28.000000000 -0400
-+++ jhagewood/diff/diff/diffdir.c	2012-07-16 05:03:32.000000000 -0400
+ extern struct	 stat stb1, stb2;
+diff -rupN diff-orig/diffdir.c diff/diffdir.c
+--- diff-orig/diffdir.c	2012-07-23 02:07:00.000000000 -0400
++++ diff/diffdir.c	2012-07-23 02:07:00.000000000 -0400
 @@ -20,13 +20,13 @@
  
  #include <sys/cdefs.h>
@@ -760,9 +786,9 @@
  
  	strlcpy(path1 + plen1, dp->d_name, MAXPATHLEN - plen1);
  	if (stat(path1, &stb1) != 0) {
-diff -rupN jhagewood/diff/diff-orig/diffreg.c jhagewood/diff/diff/diffreg.c
---- jhagewood/diff/diff-orig/diffreg.c	2012-07-14 03:47:28.000000000 -0400
-+++ jhagewood/diff/diff/diffreg.c	2012-07-16 05:51:05.000000000 -0400
+diff -rupN diff-orig/diffreg.c diff/diffreg.c
+--- diff-orig/diffreg.c	2012-07-23 02:07:00.000000000 -0400
++++ diff/diffreg.c	2012-07-23 21:32:34.000000000 -0400
 @@ -62,15 +62,13 @@
   *	@(#)diffreg.c   8.1 (Berkeley) 6/6/93
   */
@@ -783,7 +809,16 @@
  
  #include <sys/param.h>
  #include <sys/stat.h>
-@@ -90,6 +88,14 @@ __FBSDID("$FreeBSD");
+@@ -86,10 +84,23 @@ __FBSDID("$FreeBSD");
+ #include <stdlib.h>
+ #include <string.h>
+ #include <unistd.h>
++#include <zlib.h>
++
++#ifndef WITHOUT_BZIP2
++#include <bzlib.h>
++#endif
+ 
  #include "diff.h"
  #include "pathnames.h"
  
@@ -798,7 +833,7 @@
  /*
   * diff - compare two files.
   */
-@@ -181,47 +187,47 @@ struct context_vec {
+@@ -181,47 +192,47 @@ struct context_vec {
  };
  
  static FILE	*opentemp(const char *);
@@ -881,7 +916,7 @@
  static struct line *sfile[2];	/* shortened by pruning common prefix/suffix */
  static u_char *chrtran;		/* translation table for case-folding */
  static struct context_vec *context_vec_start;
-@@ -294,13 +300,13 @@ u_char cup2low[256] = {
+@@ -294,13 +305,13 @@ u_char cup2low[256] = {
  int
  diffreg(char *ofile1, char *ofile2, int flags)
  {
@@ -902,7 +937,7 @@
  
  	anychange = 0;
  	lastline = 0;
-@@ -310,7 +316,7 @@ diffreg(char *ofile1, char *ofile2, int 
+@@ -310,7 +321,7 @@ diffreg(char *ofile1, char *ofile2, int 
  	if (S_ISDIR(stb1.st_mode) != S_ISDIR(stb2.st_mode))
  		return (S_ISDIR(stb1.st_mode) ? D_MISMATCH1 : D_MISMATCH2);
  	if (strcmp(file1, "-") == 0 && strcmp(file2, "-") == 0)
@@ -911,7 +946,7 @@
  
  	if (flags & D_EMPTY1)
  		f1 = fopen(_PATH_DEVNULL, "r");
-@@ -320,7 +326,7 @@ diffreg(char *ofile1, char *ofile2, int 
+@@ -320,17 +331,21 @@ diffreg(char *ofile1, char *ofile2, int 
  			    fstat(fileno(f1), &stb1) < 0) {
  				warn("%s", file1);
  				status |= 2;
@@ -920,7 +955,15 @@
  			}
  		} else if (strcmp(file1, "-") == 0)
  			f1 = stdin;
-@@ -330,7 +336,7 @@ diffreg(char *ofile1, char *ofile2, int 
+-		else
+-			f1 = fopen(file1, "r");
++		else {
++			if (filebehave == FILE_NORMAL) 
++				f1 = fopen(file1, "r");
++			if (filebehave == FILE_GZIP)
++				f1 = gzopen(file1, "r");
++		}
+ 	}
  	if (f1 == NULL) {
  		warn("%s", file1);
  		status |= 2;
@@ -929,7 +972,7 @@
  	}
  
  	if (flags & D_EMPTY2)
-@@ -341,7 +347,7 @@ diffreg(char *ofile1, char *ofile2, int 
+@@ -341,34 +356,37 @@ diffreg(char *ofile1, char *ofile2, int 
  			    fstat(fileno(f2), &stb2) < 0) {
  				warn("%s", file2);
  				status |= 2;
@@ -938,7 +981,15 @@
  			}
  		} else if (strcmp(file2, "-") == 0)
  			f2 = stdin;
-@@ -351,24 +357,23 @@ diffreg(char *ofile1, char *ofile2, int 
+-		else
+-			f2 = fopen(file2, "r");
++		else {
++			if (filebehave == FILE_NORMAL) 
++				f2 = fopen(file2, "r");
++			if (filebehave == FILE_GZIP)
++				f2 = gzopen(file2, "r");
++		}
+ 	}
  	if (f2 == NULL) {
  		warn("%s", file2);
  		status |= 2;
@@ -968,7 +1019,7 @@
  	}
  	if (lflag) {
  		/* redirect stdout to pr */
-@@ -452,7 +457,11 @@ diffreg(char *ofile1, char *ofile2, int 
+@@ -452,7 +470,11 @@ diffreg(char *ofile1, char *ofile2, int 
  		}
  		waitpid(pid, &wstatus, 0);
  	}
@@ -981,7 +1032,7 @@
  	if (anychange) {
  		status |= 1;
  		if (rval == D_SAME)
-@@ -477,8 +486,8 @@ closem:
+@@ -477,8 +499,8 @@ closem:
  static int
  files_differ(FILE *f1, FILE *f2, int flags)
  {
@@ -992,7 +1043,7 @@
  
  	if ((flags & (D_EMPTY1|D_EMPTY2)) || stb1.st_size != stb2.st_size ||
  	    (stb1.st_mode & S_IFMT) != (stb2.st_mode & S_IFMT))
-@@ -503,9 +512,9 @@ files_differ(FILE *f1, FILE *f2, int fla
+@@ -503,9 +525,9 @@ files_differ(FILE *f1, FILE *f2, int fla
  static FILE *
  opentemp(const char *file)
  {
@@ -1005,7 +1056,7 @@
  
  	if (strcmp(file, "-") == 0)
  		ifd = STDIN_FILENO;
-@@ -541,7 +550,7 @@ opentemp(const char *file)
+@@ -541,7 +563,7 @@ opentemp(const char *file)
  char *
  splice(char *dir, char *file)
  {
@@ -1014,7 +1065,7 @@
  
  	if ((tail = strrchr(file, '/')) == NULL)
  		tail = file;
-@@ -555,8 +564,8 @@ static void
+@@ -555,8 +577,8 @@ static void
  prepare(int i, FILE *fd, off_t filesize)
  {
  	struct line	*p;
@@ -1025,7 +1076,7 @@
  
  	rewind(fd);
  
-@@ -579,7 +588,7 @@ prepare(int i, FILE *fd, off_t filesize)
+@@ -579,7 +601,7 @@ prepare(int i, FILE *fd, off_t filesize)
  static void
  prune(void)
  {
@@ -1034,7 +1085,7 @@
  
  	for (pref = 0; pref < len[0] && pref < len[1] &&
  	    file[0][pref + 1].value == file[1][pref + 1].value;
-@@ -600,7 +609,7 @@ prune(void)
+@@ -600,7 +622,7 @@ prune(void)
  static void
  equiv(struct line *a, int n, struct line *b, int m, int *c)
  {
@@ -1043,7 +1094,7 @@
  
  	i = j = 1;
  	while (i <= n && j <= m) {
-@@ -629,7 +638,7 @@ equiv(struct line *a, int n, struct line
+@@ -629,7 +651,7 @@ equiv(struct line *a, int n, struct line
  static int
  isqrt(int n)
  {
@@ -1052,7 +1103,7 @@
  
  	if (n == 0)
  		return (0);
-@@ -647,9 +656,9 @@ isqrt(int n)
+@@ -647,9 +669,9 @@ isqrt(int n)
  static int
  stone(int *a, int n, int *b, int *c)
  {
@@ -1065,7 +1116,7 @@
  	const u_int bound = dflag ? UINT_MAX : MAX(256, isqrt(n));
  
  	k = 0;
-@@ -705,7 +714,7 @@ newcand(int x, int y, int pred)
+@@ -705,7 +727,7 @@ newcand(int x, int y, int pred)
  static int
  search(int *c, int k, int y)
  {
@@ -1074,7 +1125,7 @@
  
  	if (clist[c[k]].y < y)	/* quick look for typical case */
  		return (k + 1);
-@@ -730,7 +739,7 @@ static void
+@@ -730,7 +752,7 @@ static void
  unravel(int p)
  {
  	struct cand	*q;
@@ -1083,7 +1134,7 @@
  
  	for (i = 0; i <= len[0]; i++)
  		J[i] = i <= pref ? i :
-@@ -748,9 +757,10 @@ unravel(int p)
+@@ -748,9 +770,10 @@ unravel(int p)
  static void
  check(char *file1, FILE *f1, char *file2, FILE *f2)
  {
@@ -1097,7 +1148,7 @@
  	rewind(f1);
  	rewind(f2);
  	j = 1;
-@@ -766,7 +776,7 @@ check(char *file1, FILE *f1, char *file2
+@@ -766,7 +789,7 @@ check(char *file1, FILE *f1, char *file2
  			ixnew[j] = ctnew += skipline(f2);
  			j++;
  		}
@@ -1106,7 +1157,7 @@
  			for (;;) {
  				c = getc(f1);
  				d = getc(f2);
-@@ -781,6 +791,7 @@ check(char *file1, FILE *f1, char *file2
+@@ -781,6 +804,7 @@ check(char *file1, FILE *f1, char *file2
  				}
  				ctold++;
  				ctnew++;
@@ -1114,7 +1165,7 @@
  				if (bflag && isspace(c) && isspace(d)) {
  					do {
  						if (c == '\n')
-@@ -792,6 +803,7 @@ check(char *file1, FILE *f1, char *file2
+@@ -792,6 +816,7 @@ check(char *file1, FILE *f1, char *file2
  							break;
  						ctnew++;
  					} while (isspace(d = getc(f2)));
@@ -1122,7 +1173,7 @@
  				} else if (wflag) {
  					while (isspace(c) && c != '\n') {
  						c = getc(f1);
-@@ -801,31 +813,55 @@ check(char *file1, FILE *f1, char *file2
+@@ -801,31 +826,55 @@ check(char *file1, FILE *f1, char *file2
  						d = getc(f2);
  						ctnew++;
  					}
@@ -1199,7 +1250,7 @@
  				if (chrtran[c] != chrtran[d]) {
  					jackpot++;
  					J[i] = 0;
-@@ -872,7 +908,7 @@ static void
+@@ -872,7 +921,7 @@ static void
  sort(struct line *a, int n)
  {
  	struct line	*ai, *aim, w;
@@ -1208,7 +1259,7 @@
  
  	if (n == 0)
  		return;
-@@ -916,7 +952,7 @@ unsort(struct line *f, int l, int *b)
+@@ -916,7 +965,7 @@ unsort(struct line *f, int l, int *b)
  static int
  skipline(FILE *f)
  {
@@ -1217,7 +1268,7 @@
  
  	for (i = 1; (c = getc(f)) != '\n' && c != EOF; i++)
  		continue;
-@@ -926,7 +962,7 @@ skipline(FILE *f)
+@@ -926,7 +975,7 @@ skipline(FILE *f)
  static void
  output(char *file1, FILE *f1, char *file2, FILE *f2, int flags)
  {
@@ -1226,7 +1277,7 @@
  
  	rewind(f1);
  	rewind(f2);
-@@ -965,7 +1001,7 @@ output(char *file1, FILE *f1, char *file
+@@ -965,7 +1014,7 @@ output(char *file1, FILE *f1, char *file
  #define	c i0
  			if ((c = getc(f1)) == EOF)
  				return;
@@ -1235,7 +1286,7 @@
  		}
  #undef c
  	}
-@@ -980,6 +1016,7 @@ output(char *file1, FILE *f1, char *file
+@@ -980,6 +1029,7 @@ output(char *file1, FILE *f1, char *file
  static void
  range(int a, int b, char *separator)
  {
@@ -1243,7 +1294,7 @@
  	printf("%d", a > b ? b : a);
  	if (a < b)
  		printf("%s%d", separator, b);
-@@ -988,6 +1025,7 @@ range(int a, int b, char *separator)
+@@ -988,6 +1038,7 @@ range(int a, int b, char *separator)
  static void
  uni_range(int a, int b)
  {
@@ -1251,7 +1302,7 @@
  	if (a < b)
  		printf("%d,%d", a, b - a + 1);
  	else if (a == b)
-@@ -999,22 +1037,22 @@ uni_range(int a, int b)
+@@ -999,22 +1050,22 @@ uni_range(int a, int b)
  static char *
  preadline(int fd, size_t len, off_t off)
  {
@@ -1278,7 +1329,7 @@
  
  	ret = regexec(&ignore_re, line, 0, NULL, 0);
  	free(line);
-@@ -1032,10 +1070,10 @@ static void
+@@ -1032,10 +1083,10 @@ static void
  change(char *file1, FILE *f1, char *file2, FILE *f2, int a, int b, int c, int d,
      int *pflags)
  {
@@ -1292,7 +1343,7 @@
  	if (format != D_IFDEF && a > b && c > d)
  		return;
  	if (ignore_pats != NULL) {
-@@ -1050,7 +1088,7 @@ restart:
+@@ -1050,7 +1101,7 @@ restart:
  				line = preadline(fileno(f1),
  				    ixold[i] - ixold[i - 1], ixold[i - 1]);
  				if (!ignoreline(line))
@@ -1301,7 +1352,7 @@
  			}
  		}
  		if (a > b || c <= d) {	/* Changes and inserts. */
-@@ -1058,12 +1096,12 @@ restart:
+@@ -1058,12 +1109,12 @@ restart:
  				line = preadline(fileno(f2),
  				    ixnew[i] - ixnew[i - 1], ixnew[i - 1]);
  				if (!ignoreline(line))
@@ -1316,7 +1367,7 @@
  	if (*pflags & D_HEADER) {
  		printf("%s %s %s\n", diffargs, file1, file2);
  		*pflags &= ~D_HEADER;
-@@ -1113,15 +1151,15 @@ proceed:
+@@ -1113,15 +1164,15 @@ proceed:
  	case D_NORMAL:
  	case D_EDIT:
  		range(a, b, ",");
@@ -1336,7 +1387,7 @@
  		break;
  	case D_NREVERSE:
  		if (a > b)
-@@ -1137,7 +1175,7 @@ proceed:
+@@ -1137,7 +1188,7 @@ proceed:
  	if (format == D_NORMAL || format == D_IFDEF) {
  		fetch(ixold, a, b, f1, '<', 1);
  		if (a <= b && c <= d && format == D_NORMAL)
@@ -1345,7 +1396,7 @@
  	}
  	i = fetch(ixnew, c, d, f2, format == D_NORMAL ? '>' : '\0', 0);
  	if (i != 0 && format == D_EDIT) {
-@@ -1148,14 +1186,14 @@ proceed:
+@@ -1148,14 +1199,14 @@ proceed:
  		 * it.  We have to add a substitute command to change this
  		 * back and restart where we left off.
  		 */
@@ -1363,7 +1414,7 @@
  	if (inifdef) {
  		printf("#endif /* %s */\n", ifdefname);
  		inifdef = 0;
-@@ -1165,8 +1203,8 @@ proceed:
+@@ -1165,8 +1216,8 @@ proceed:
  static int
  fetch(long *f, int a, int b, FILE *lb, int ch, int oldfile)
  {
@@ -1374,7 +1425,7 @@
  
  	/*
  	 * When doing #ifdef's, copy down to current line
-@@ -1177,7 +1215,7 @@ fetch(long *f, int a, int b, FILE *lb, i
+@@ -1177,7 +1228,7 @@ fetch(long *f, int a, int b, FILE *lb, i
  		/* print through if append (a>b), else to (nb: 0 vs 1 orig) */
  		nc = f[a > b ? b : a - 1] - curpos;
  		for (i = 0; i < nc; i++)
@@ -1383,7 +1434,7 @@
  	}
  	if (a > b)
  		return (0);
-@@ -1197,12 +1235,12 @@ fetch(long *f, int a, int b, FILE *lb, i
+@@ -1197,12 +1248,12 @@ fetch(long *f, int a, int b, FILE *lb, i
  		fseek(lb, f[i - 1], SEEK_SET);
  		nc = f[i] - f[i - 1];
  		if (format != D_IFDEF && ch != '\0') {
@@ -1399,7 +1450,7 @@
  		}
  		col = 0;
  		for (j = 0, lastc = '\0'; j < nc; j++, lastc = c) {
-@@ -1211,13 +1249,13 @@ fetch(long *f, int a, int b, FILE *lb, i
+@@ -1211,13 +1262,13 @@ fetch(long *f, int a, int b, FILE *lb, i
  				    format == D_NREVERSE)
  					warnx("No newline at end of file");
  				else
@@ -1415,7 +1466,7 @@
  				} while (++col < newcol);
  			} else {
  				if (format == D_EDIT && j == 1 && c == '\n'
-@@ -1229,10 +1267,10 @@ fetch(long *f, int a, int b, FILE *lb, i
+@@ -1229,10 +1280,10 @@ fetch(long *f, int a, int b, FILE *lb, i
  					 * giving the caller an offset
  					 * from which to restart.
  					 */
@@ -1428,7 +1479,7 @@
  				col++;
  			}
  		}
-@@ -1246,8 +1284,8 @@ fetch(long *f, int a, int b, FILE *lb, i
+@@ -1246,8 +1297,8 @@ fetch(long *f, int a, int b, FILE *lb, i
  static int
  readhash(FILE *f)
  {
@@ -1439,7 +1490,7 @@
  
  	sum = 1;
  	space = 0;
-@@ -1305,20 +1343,28 @@ readhash(FILE *f)
+@@ -1305,20 +1356,28 @@ readhash(FILE *f)
  	return (sum == 0 ? 1 : sum);
  }
  
@@ -1454,7 +1505,7 @@
  {
 -	char		 buf[BUFSIZ];
 -	int		 i, cnt;
-+	int	i, check_size;
++	int	i;
 +	char ch;
  
  	if (aflag || f == NULL)
@@ -1475,7 +1526,7 @@
  	return (1);
  }
  
-@@ -1327,10 +1373,10 @@ asciifile(FILE *f)
+@@ -1327,10 +1386,10 @@ asciifile(FILE *f)
  static char *
  match_function(const long *f, int pos, FILE *file)
  {
@@ -1490,7 +1541,7 @@
  
  	lastline = pos;
  	while (pos > last) {
-@@ -1342,7 +1388,6 @@ match_function(const long *f, int pos, F
+@@ -1342,7 +1401,6 @@ match_function(const long *f, int pos, F
  		if (nc > 0) {
  			buf[nc] = '\0';
  			buf[strcspn(buf, "\n")] = '\0';
@@ -1498,7 +1549,7 @@
  			if (isalpha(buf[0]) || buf[0] == '_' || buf[0] == '$') {
  				if (begins_with(buf, "private:")) {
  					if (!state)
-@@ -1373,9 +1418,9 @@ static void
+@@ -1373,9 +1431,9 @@ static void
  dump_context_vec(FILE *f1, FILE *f2)
  {
  	struct context_vec *cvp = context_vec_start;
@@ -1511,7 +1562,7 @@
  
  	if (context_vec_start > context_vec_ptr)
  		return;
-@@ -1390,8 +1435,8 @@ dump_context_vec(FILE *f1, FILE *f2)
+@@ -1390,8 +1448,8 @@ dump_context_vec(FILE *f1, FILE *f2)
  	if (pflag) {
  		f = match_function(ixold, lowa-1, f1);
  		if (f != NULL) {
@@ -1522,7 +1573,7 @@
  		}
  	}
  	printf("\n*** ");
-@@ -1478,9 +1523,9 @@ static void
+@@ -1478,9 +1536,9 @@ static void
  dump_unified_vec(FILE *f1, FILE *f2)
  {
  	struct context_vec *cvp = context_vec_start;
@@ -1535,7 +1586,7 @@
  
  	if (context_vec_start > context_vec_ptr)
  		return;
-@@ -1491,19 +1536,19 @@ dump_unified_vec(FILE *f1, FILE *f2)
+@@ -1491,19 +1549,19 @@ dump_unified_vec(FILE *f1, FILE *f2)
  	lowc = MAX(1, cvp->c - context);
  	upd = MIN(len[1], context_vec_ptr->d + context);
  
@@ -1561,7 +1612,7 @@
  
  	/*
  	 * Output changes in "unified" diff format--the old and new lines
-@@ -1551,16 +1596,43 @@ dump_unified_vec(FILE *f1, FILE *f2)
+@@ -1551,16 +1609,43 @@ dump_unified_vec(FILE *f1, FILE *f2)
  static void
  print_header(const char *file1, const char *file2)
  {
@@ -1611,12 +1662,3 @@
 +		printf("%s %s\t%s\n", format == D_CONTEXT ? "---" : "+++",
 +			file2, buf2);	
  }
-diff -rupN jhagewood/diff/diff-orig/pathnames.h jhagewood/diff/diff/pathnames.h
---- jhagewood/diff/diff-orig/pathnames.h	2012-07-14 03:47:28.000000000 -0400
-+++ jhagewood/diff/diff/pathnames.h	2012-07-14 03:47:29.000000000 -0400
-@@ -23,4 +23,5 @@
- #include <paths.h>
- 
- #define	_PATH_PR	"/usr/bin/pr"
-+#define _PATH_DIFF	"/usr/bin/diff"
- #define _PATH_SDIFF	"/usr/bin/sdiff"



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