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src/cmd/9term/rcstart.c

@@ -0,0 +1,51 @@
+#include <u.h>
+#include <libc.h>
+#include "term.h"
+
+int
+rcstart(int argc, char **argv, int *pfd)
+{
+	int pid;
+	int fd[2];
+	char *xargv[3];
+	char slave[256];
+	int sfd;
+
+	if(argc == 0){
+		argc = 2;
+		argv = xargv;
+		argv[0] = getenv("SHELL");
+		if(argv[0] == 0)
+			argv[0] = "rc";
+		argv[1] = "-i";
+		argv[2] = 0;
+	}
+	/*
+	 * fd0 is slave (tty), fd1 is master (pty)
+	 */
+	fd[0] = fd[1] = -1;
+	if(getpts(fd, slave) < 0)
+		fprint(2, "getpts: %r\n");
+
+
+	switch(pid = fork()) {
+	case 0:
+		putenv("TERM", "9term");
+		sfd = childpty(fd, slave);
+		dup(sfd, 0);
+		dup(sfd, 1);
+		dup(sfd, 2);
+		system("stty tabs -onlcr -echo erase ^h intr ^?");
+		execvp(argv[0], argv);
+		fprint(2, "exec %s failed: %r\n", argv[0]);
+		_exits("oops");
+		break;
+	case -1:
+		sysfatal("proc failed: %r");
+		break;
+	}
+	close(fd[0]);
+	*pfd = fd[1];
+	return pid;
+}
+