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authorRich Felker <dalias@aerifal.cx>2011-04-20 20:55:13 -0400
committerRich Felker <dalias@aerifal.cx>2011-04-20 20:55:13 -0400
commit4921ce08673d14e53b3931b8536238d944a2c1ce (patch)
treec0a960a492beeddf7fc0a6b32d5cbc17bc6681a9
parentf1ac8a28d8f3c93ef42c20460992f74822975f11 (diff)
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implement (nonstandard) forkpty
-rw-r--r--include/pty.h1
-rw-r--r--src/misc/forkpty.c22
2 files changed, 23 insertions, 0 deletions
diff --git a/include/pty.h b/include/pty.h
index 9444e5ec..46a99f47 100644
--- a/include/pty.h
+++ b/include/pty.h
@@ -9,6 +9,7 @@ extern "C" {
#include <sys/ioctl.h>
int openpty(int *, int *, char *, const struct termios *, const struct winsize *);
+int forkpty(int *, char *, const struct termios *, const struct winsize *);
#ifdef __cplusplus
extern }
diff --git a/src/misc/forkpty.c b/src/misc/forkpty.c
new file mode 100644
index 00000000..2d1b0ae2
--- /dev/null
+++ b/src/misc/forkpty.c
@@ -0,0 +1,22 @@
+#include <pty.h>
+#include <unistd.h>
+
+int forkpty(int *m, char *name, const struct termios *tio, const struct winsize *ws)
+{
+ int s;
+ pid_t pid;
+
+ if (openpty(m, &s, name, tio, ws) < 0) return -1;
+ pid = fork();
+ if (!pid) {
+ close(*m);
+ dup2(s, 0);
+ dup2(s, 1);
+ dup2(s, 2);
+ close(s);
+ return 0;
+ }
+ close(s);
+ if (pid < 0) close(*m);
+ return pid;
+}