*** empty log message ***

1 files changed, 157 insertions, 0 deletions

diff --git a/src/ptty.c b/src/ptty.c
new file mode 100644
index 0000000..dee241b
--- /dev/null
+++ b/src/ptty.c
@@ -0,0 +1,157 @@
+/*
+ * ptty.c:
+ *
+ * Copyright (c) 2008 James McKenzie <james@fishsoup.dhs.org>,
+ * All rights reserved.
+ *
+ */
+
+static char rcsid[] = "$Id$";
+
+/*
+ * $Log$
+ * Revision 1.1  2008/02/09 15:47:28  james
+ * *** empty log message ***
+ *
+ * Revision 1.2  2008/02/07 11:11:14  staffcvs
+ * *** empty log message ***
+ *
+ * Revision 1.1  2008/02/07 01:02:52  james
+ * *** empty log message ***
+ *
+ * Revision 1.3  2008/02/06 17:53:28  james
+ * *** empty log message ***
+ *
+ * Revision 1.2  2008/02/04 02:05:06  james
+ * *** empty log message ***
+ *
+ * Revision 1.1  2008/02/04 01:32:39  james
+ * *** empty log message ***
+ *
+ */
+
+#include "project.h"
+
+
+typedef struct {
+	TTY_SIGNATURE;
+	int fd;
+	pid_t child;
+} PTTY;
+
+
+void ptty_close(TTY *_t)
+{
+PTTY *t=(PTTY *) _t;
+
+if (!t) return;
+
+close(t->fd);
+free(t);
+}
+
+
+
+static int
+ptty_read (TTY * _t, void *buf, int len)
+{
+PTTY *t=(PTTY *)_t;
+  int red, done = 0;
+
+  do
+    {
+
+      red = wrap_read (t->fd, buf, len);
+      if (red < 0)
+        return -1;
+      if (!red)
+        return done;
+
+      buf += red;
+      len -= red;
+      done += red;
+    }
+  while (len);
+
+
+  return done;
+}
+
+
+static int
+ptty_write (TTY * _t, void *buf, int len)
+{
+  int writ, done = 0;
+  PTTY *t=(PTTY *) _t;
+
+  do
+    {
+
+      writ = wrap_write (t->fd, buf, len);
+      if (writ < 0)
+        return -1;
+      if (!writ)
+        sleep (1);
+
+      buf += writ;
+      len -= writ;
+      done += writ;
+    }
+  while (len);
+
+
+  return done;
+}
+
+TTY * ptty_open(char *path,char *argv[])
+{
+  PTTY *t;
+  pid_t child;
+  char name[1024];
+  struct winsize winsize = { 0 };
+  struct termios termios;
+  int fd;
+  char *default_argv={"-",(char *) 0};
+
+  child = forkpty (&fd, name, &termios, &winsize);
+
+  switch (child)
+    {
+    case -1:                   /*boo hiss */
+      return -1;
+    case 0:                    /*waaah */
+      setenv ("TERM", "vt102", 1);
+      setenv ("LANG", "C", 1);
+	if (!path) 
+		path="/bin/sh";
+ 
+	if (!argv) 
+		argv=default_argv;
+		
+      execv (path,argv);
+      _exit (-1);
+    }
+
+  set_nonblocking (fd);
+
+  t=(PTTY*) malloc(sizeof(PTTY));
+
+  strncpy(t->name,name,sizeof(t->name));
+  t->name[sizeof(t->name)-1]=0;
+
+  t->read=ptty_read;
+  t->write=ptty_write;
+  t->close=ptty_close;
+
+  default_termios (&termios);
+
+  winsize.ws_row = VT102_ROWS;
+  winsize.ws_col = VT102_COLS;
+
+  t->fd = open_fd_to_pty (path,argv);
+  t->pid=child;
+  t->rfd=t->fd;
+  t->wfd=0;
+
+  return (TTY *) t;
+}