From d47027c4e4887de3745160beafb9de9e30c6a03f Mon Sep 17 00:00:00 2001
From: nicm <nicm@openbsd.org>
Date: Mon, 19 May 2014 08:58:34 +0000
Subject: [PATCH] Add a H_SAVE_FP operation to history() which lets the history
 be saved to an open file pointer. From NetBSD via Eitan Adler.

ok millert
---
 lib/libedit/editline.3    |  9 +++++++--
 lib/libedit/hist.h        |  3 ++-
 lib/libedit/histedit.h    |  3 ++-
 lib/libedit/history.c     | 37 +++++++++++++++++++++++++++++--------
 lib/libedit/shlib_version |  2 +-
 5 files changed, 41 insertions(+), 13 deletions(-)

diff --git a/lib/libedit/editline.3 b/lib/libedit/editline.3
index 98d69618154..c6a35b0c01f 100644
--- a/lib/libedit/editline.3
+++ b/lib/libedit/editline.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: editline.3,v 1.33 2013/01/10 14:21:47 jmc Exp $
+.\"	$OpenBSD: editline.3,v 1.34 2014/05/19 08:58:34 nicm Exp $
 .\"	$NetBSD: editline.3,v 1.73 2010/01/03 19:05:26 wiz Exp $
 .\"
 .\" Copyright (c) 1997-2003 The NetBSD Foundation, Inc.
@@ -27,7 +27,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: January 10 2013 $
+.Dd $Mdocdate: May 19 2014 $
 .Dt EDITLINE 3
 .Os
 .Sh NAME
@@ -735,6 +735,11 @@ Load the history list stored in
 .It Dv H_SAVE , Fa "const char *file"
 Save the history list to
 .Fa file .
+.It Dv H_SAVE_FP , Fa "FILE *fp"
+Save the history list to the opened
+.Fa fp
+.Ft FILE
+pointer .
 .It Dv H_SETUNIQUE , Fa "int unique"
 Set flag that adjacent identical event strings should not be entered
 into the history.
diff --git a/lib/libedit/hist.h b/lib/libedit/hist.h
index 1f14fd9dec0..246d4d974c3 100644
--- a/lib/libedit/hist.h
+++ b/lib/libedit/hist.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: hist.h,v 1.8 2010/06/30 00:05:35 nicm Exp $	*/
+/*	$OpenBSD: hist.h,v 1.9 2014/05/19 08:58:34 nicm Exp $	*/
 /*	$NetBSD: hist.h,v 1.12 2009/12/30 23:54:52 christos Exp $	*/
 
 /*-
@@ -74,6 +74,7 @@ typedef struct el_history_t {
 #define	HIST_SET(el, num)	HIST_FUN(el, H_SET, num)
 #define	HIST_LOAD(el, fname)	HIST_FUN(el, H_LOAD fname)
 #define	HIST_SAVE(el, fname)	HIST_FUN(el, H_SAVE fname)
+#define	HIST_SAVE_FP(el, fp)	HIST_FUN(el, H_SAVE_FP fp)
 
 protected int		hist_init(EditLine *);
 protected void		hist_end(EditLine *);
diff --git a/lib/libedit/histedit.h b/lib/libedit/histedit.h
index 3c049e6aa93..7213c4e0b4d 100644
--- a/lib/libedit/histedit.h
+++ b/lib/libedit/histedit.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: histedit.h,v 1.11 2011/07/07 05:40:42 okan Exp $	*/
+/*	$OpenBSD: histedit.h,v 1.12 2014/05/19 08:58:34 nicm Exp $	*/
 /*	$NetBSD: histedit.h,v 1.46 2010/04/15 00:50:03 christos Exp $	*/
 
 /*-
@@ -225,6 +225,7 @@ int		history(History *, HistEvent *, int, ...);
 #define	H_NEXT_EVDATA	23	/* , const int, histdata_t *);	*/
 #define	H_DELDATA	24	/* , int, histdata_t *);*/
 #define	H_REPLACE	25	/* , const char *, histdata_t);	*/
+#define	H_SAVE_FP	26	/* , FILE *);		*/
 
 
 
diff --git a/lib/libedit/history.c b/lib/libedit/history.c
index 76b0d70bc0c..1c8290b621f 100644
--- a/lib/libedit/history.c
+++ b/lib/libedit/history.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: history.c,v 1.17 2014/01/19 11:48:54 tobias Exp $	*/
+/*	$OpenBSD: history.c,v 1.18 2014/05/19 08:58:34 nicm Exp $	*/
 /*	$NetBSD: history.c,v 1.37 2010/01/03 18:27:10 christos Exp $	*/
 
 /*-
@@ -103,6 +103,7 @@ private int history_getunique(TYPE(History) *, TYPE(HistEvent) *);
 private int history_set_fun(TYPE(History) *, TYPE(History) *);
 private int history_load(TYPE(History) *, const char *);
 private int history_save(TYPE(History) *, const char *);
+private int history_save_fp(TYPE(History) *, FILE *);
 private int history_prev_event(TYPE(History) *, TYPE(HistEvent) *, int);
 private int history_next_event(TYPE(History) *, TYPE(HistEvent) *, int);
 private int history_next_string(TYPE(History) *, TYPE(HistEvent) *, const Char *);
@@ -784,13 +785,12 @@ done:
 }
 
 
-/* history_save():
+/* history_save_fp():
  *	TYPE(History) save function
  */
 private int
-history_save(TYPE(History) *h, const char *fname)
+history_save_fp(TYPE(History) *h, FILE *fp)
 {
-	FILE *fp;
 	TYPE(HistEvent) ev;
 	int i = -1, retval;
 	size_t len, max_size;
@@ -799,9 +799,6 @@ history_save(TYPE(History) *h, const char *fname)
 	static ct_buffer_t conv;
 #endif
 
-	if ((fp = fopen(fname, "w")) == NULL)
-		return (-1);
-
 	if (fchmod(fileno(fp), S_IRUSR|S_IWUSR) == -1)
 		goto done;
 	if (fputs(hist_cookie, fp) == EOF)
@@ -830,11 +827,29 @@ history_save(TYPE(History) *h, const char *fname)
 oomem:
 	h_free((ptr_t)ptr);
 done:
-	(void) fclose(fp);
 	return (i);
 }
 
 
+/* history_save():
+ *    History save function
+ */
+private int
+history_save(TYPE(History) *h, const char *fname)
+{
+	FILE *fp;
+	int i;
+
+	if ((fp = fopen(fname, "w")) == NULL)
+		return -1;
+
+	i = history_save_fp(h, fp);
+
+	(void) fclose(fp);
+	return i;
+}
+
+
 /* history_prev_event():
  *	Find the previous event, with number given
  */
@@ -1015,6 +1030,12 @@ FUNW(history)(TYPE(History) *h, TYPE(HistEvent) *ev, int fun, ...)
 			he_seterrev(ev, _HE_HIST_WRITE);
 		break;
 
+	case H_SAVE_FP:
+		retval = history_save_fp(h, va_arg(va, FILE *));
+		if (retval == -1)
+		    he_seterrev(ev, _HE_HIST_WRITE);
+		break;
+
 	case H_PREV_EVENT:
 		retval = history_prev_event(h, ev, va_arg(va, int));
 		break;
diff --git a/lib/libedit/shlib_version b/lib/libedit/shlib_version
index 3066b9771e7..900b4048a96 100644
--- a/lib/libedit/shlib_version
+++ b/lib/libedit/shlib_version
@@ -1,2 +1,2 @@
 major=5
-minor=0
+minor=1
-- 
2.20.1