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	st-externalpipe-20181016-3be4cf1.diff (1958B)
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	1 From c19e14bef38548e3984a0135f6466f77d56b8d77 Mon Sep 17 00:00:00 2001
	2 From: Parker Ellertson <[email protected]>
	3 Date: Tue, 16 Oct 2018 12:27:29 -0600
	4 Subject: [PATCH] Applied externalpipe patch to current git version.
	5
	6 ---
	7 st.c \| 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
	8 st.h \| 1 +
	9 2 files changed, 54 insertions(+)
	10
	11 diff --git a/st.c b/st.c
	12 index 46cf2da..2a34f83 100644
	13 --- a/st.c
	14 +++ b/st.c
	15 @@ -1978,6 +1978,59 @@ tprinter(char *s, size_t len)
	16 }
	17 }
	18
	19 +void
	20 +externalpipe(const Arg *arg)
	21 +{
	22 + int to[2];
	23 + char buf[UTF_SIZ];
	24 + void (*oldsigpipe)(int);
	25 + Glyph bp, end;
	26 + int lastpos, n, newline;
	27 +
	28 + if (pipe(to) == -1)
	29 + return;
	30 +
	31 + switch (fork()) {
	32 + case -1:
	33 + close(to[0]);
	34 + close(to[1]);
	35 + return;
	36 + case 0:
	37 + dup2(to[0], STDIN_FILENO);
	38 + close(to[0]);
	39 + close(to[1]);
	40 + execvp(((char )arg->v)[0], (char )arg->v);
	41 + fprintf(stderr, "st: execvp %s\n", ((char **)arg->v)[0]…
	42 + perror("failed");
	43 + exit(0);
	44 + }
	45 +
	46 + close(to[0]);
	47 + /* ignore sigpipe for now, in case child exists early */
	48 + oldsigpipe = signal(SIGPIPE, SIG_IGN);
	49 + newline = 0;
	50 + for (n = 0; n < term.row; n++) {
	51 + bp = term.line[n];
	52 + lastpos = MIN(tlinelen(n) + 1, term.col) - 1;
	53 + if (lastpos < 0)
	54 + break;
	55 + end = &bp[lastpos + 1];
	56 + for (; bp < end; ++bp)
	57 + if (xwrite(to[1], buf, utf8encode(bp->u, buf)) …
	58 + break;
	59 + if ((newline = term.line[n][lastpos].mode & ATTR_WRAP))
	60 + continue;
	61 + if (xwrite(to[1], "\n", 1) < 0)
	62 + break;
	63 + newline = 0;
	64 + }
	65 + if (newline)
	66 + (void)xwrite(to[1], "\n", 1);
	67 + close(to[1]);
	68 + /* restore */
	69 + signal(SIGPIPE, oldsigpipe);
	70 +}
	71 +
	72 void
	73 toggleprinter(const Arg *arg)
	74 {
	75 diff --git a/st.h b/st.h
	76 index 38c61c4..fe56f49 100644
	77 --- a/st.h
	78 +++ b/st.h
	79 @@ -83,6 +83,7 @@ void draw(void);
	80 void printscreen(const Arg *);
	81 void printsel(const Arg *);
	82 void sendbreak(const Arg *);
	83 +void externalpipe(const Arg *);
	84 void toggleprinter(const Arg *);
	85
	86 int tattrset(int);
	87 --
	88 2.19.1
	89