===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/uniq/uniq.c,v
retrieving revision 1.24
retrieving revision 1.25
diff -c -r1.24 -r1.25
*** src/usr.bin/uniq/uniq.c	2015/12/19 10:21:01	1.24
--- src/usr.bin/uniq/uniq.c	2017/12/21 10:05:59	1.25
***************
*** 1,4 ****
! /*	$OpenBSD: uniq.c,v 1.24 2015/12/19 10:21:01 schwarze Exp $	*/
  /*	$NetBSD: uniq.c,v 1.7 1995/08/31 22:03:48 jtc Exp $	*/
  
  /*
--- 1,4 ----
! /*	$OpenBSD: uniq.c,v 1.25 2017/12/21 10:05:59 tb Exp $	*/
  /*	$NetBSD: uniq.c,v 1.7 1995/08/31 22:03:48 jtc Exp $	*/
  
  /*
***************
*** 47,53 ****
  
  #define	MAXLINELEN	(8 * 1024)
  
! int cflag, dflag, uflag;
  int numchars, numfields, repeats;
  
  FILE	*file(char *, char *);
--- 47,53 ----
  
  #define	MAXLINELEN	(8 * 1024)
  
! int cflag, dflag, iflag, uflag;
  int numchars, numfields, repeats;
  
  FILE	*file(char *, char *);
***************
*** 70,76 ****
  		err(1, "pledge");
  
  	obsolete(argv);
! 	while ((ch = getopt(argc, argv, "cdf:s:u")) != -1) {
  		const char *errstr;
  
  		switch (ch) {
--- 70,76 ----
  		err(1, "pledge");
  
  	obsolete(argv);
! 	while ((ch = getopt(argc, argv, "cdf:is:u")) != -1) {
  		const char *errstr;
  
  		switch (ch) {
***************
*** 87,92 ****
--- 87,95 ----
  				errx(1, "field skip value is %s: %s",
  				    errstr, optarg);
  			break;
+ 		case 'i':
+ 			iflag = 1;
+ 			break;
  		case 's':
  			numchars = (int)strtonum(optarg, 0, INT_MAX,
  			    &errstr);
***************
*** 149,155 ****
  		}
  
  		/* If different, print; set previous to new value. */
! 		if (strcmp(t1, t2)) {
  			show(ofp, prevline);
  			t1 = prevline;
  			prevline = thisline;
--- 152,158 ----
  		}
  
  		/* If different, print; set previous to new value. */
! 		if ((!iflag && strcmp(t1, t2)) || strcasecmp(t1, t2)) {
  			show(ofp, prevline);
  			t1 = prevline;
  			prevline = thisline;
***************
*** 257,263 ****
  	extern char *__progname;
  
  	(void)fprintf(stderr,
! 	    "usage: %s [-c] [-d | -u] [-f fields] [-s chars] [input_file [output_file]]\n",
  	    __progname);
  	exit(1);
  }
--- 260,266 ----
  	extern char *__progname;
  
  	(void)fprintf(stderr,
! 	    "usage: %s [-ci] [-d | -u] [-f fields] [-s chars] [input_file [output_file]]\n",
  	    __progname);
  	exit(1);
  }