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93 lines
2.0 KiB
93 lines
2.0 KiB
diff --git a/st.c b/st.c
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index 76b7e0d..0e9a614 100644
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--- a/st.c
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+++ b/st.c
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@@ -723,8 +723,14 @@ sigchld(int a)
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if ((p = waitpid(pid, &stat, WNOHANG)) < 0)
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die("waiting for pid %hd failed: %s\n", pid, strerror(errno));
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- if (pid != p)
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+ if (pid != p) {
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+ if (p == 0 && wait(&stat) < 0)
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+ die("wait: %s\n", strerror(errno));
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+
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+ /* reinstall sigchld handler */
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+ signal(SIGCHLD, sigchld);
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return;
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+ }
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if (WIFEXITED(stat) && WEXITSTATUS(stat))
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die("child exited with status %d\n", WEXITSTATUS(stat));
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@@ -1926,6 +1932,59 @@ strparse(void)
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}
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}
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+void
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+externalpipe(const Arg *arg)
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+{
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+ int to[2];
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+ char buf[UTF_SIZ];
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+ void (*oldsigpipe)(int);
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+ Glyph *bp, *end;
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+ int lastpos, n, newline;
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+
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+ if (pipe(to) == -1)
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+ return;
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+
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+ switch (fork()) {
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+ case -1:
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+ close(to[0]);
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+ close(to[1]);
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+ return;
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+ case 0:
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+ dup2(to[0], STDIN_FILENO);
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+ close(to[0]);
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+ close(to[1]);
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+ execvp(((char **)arg->v)[0], (char **)arg->v);
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+ fprintf(stderr, "st: execvp %s\n", ((char **)arg->v)[0]);
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+ perror("failed");
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+ exit(0);
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+ }
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+
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+ close(to[0]);
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+ /* ignore sigpipe for now, in case child exists early */
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+ oldsigpipe = signal(SIGPIPE, SIG_IGN);
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+ newline = 0;
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+ for (n = 0; n < term.row; n++) {
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+ bp = term.line[n];
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+ lastpos = MIN(tlinelen(n) + 1, term.col) - 1;
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+ if (lastpos < 0)
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+ break;
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+ end = &bp[lastpos + 1];
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+ for (; bp < end; ++bp)
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+ if (xwrite(to[1], buf, utf8encode(bp->u, buf)) < 0)
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+ break;
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+ if ((newline = term.line[n][lastpos].mode & ATTR_WRAP))
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+ continue;
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+ if (xwrite(to[1], "\n", 1) < 0)
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+ break;
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+ newline = 0;
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+ }
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+ if (newline)
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+ (void)xwrite(to[1], "\n", 1);
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+ close(to[1]);
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+ /* restore */
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+ signal(SIGPIPE, oldsigpipe);
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+}
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+
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void
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strdump(void)
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{
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diff --git a/st.h b/st.h
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index 3d351b6..392b64e 100644
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--- a/st.h
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+++ b/st.h
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@@ -81,6 +81,7 @@ void die(const char *, ...);
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void redraw(void);
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void draw(void);
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+void externalpipe(const Arg *);
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void printscreen(const Arg *);
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void printsel(const Arg *);
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void sendbreak(const Arg *);
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