#include "ruby/config.h"
#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/file.h>
#include <fcntl.h>
#include <errno.h>
#include <pwd.h>
#include <ctype.h>
#include "ruby/ruby.h"
#include "ruby/io.h"
#include "ruby/util.h"
#include "internal.h"
#include <signal.h>

Include dependency graph for pty.c:

Data Structures
struct	pty_info
struct	child_info
Defines
#define	WIFSTOPPED(status) (((status) & 0xff) == 0x7f)
#define	DEVICELEN 16
#define	ERROR_EXIT(str)
Functions
static VALUE	echild_status (VALUE self)
static void	getDevice (int , int , char[DEVICELEN], int)
static int	chfunc (void data, char errbuf, size_t errbuf_len)
static void	establishShell (int argc, VALUE argv, struct pty_info info, char SlaveName[DEVICELEN])
static int	no_mesg (char *slavedevice, int nomesg)
static int	get_device_once (int master, int slave, char SlaveName[DEVICELEN], int nomesg, int fail)
static VALUE	pty_close_pty (VALUE assoc)
static VALUE	pty_open (VALUE klass)
static VALUE	pty_detach_process (struct pty_info *info)
static VALUE	pty_getpty (int argc, VALUE *argv, VALUE self)
	NORETURN (static void raise_from_check(pid_t pid, int status))
static void	raise_from_check (pid_t pid, int status)
static VALUE	pty_check (int argc, VALUE *argv, VALUE self)
void	Init_pty ()
Variables
static VALUE	eChildExited
static VALUE	cPTY

Define Documentation

#define DEVICELEN 16

Definition at line 46 of file pty.c.

Referenced by get_device_once(), pty_getpty(), and pty_open().

#define ERROR_EXIT ( str )

Value:

do { \
        strlcpy(errbuf, (str), errbuf_len); \
        return -1; \
    } while (0)

Referenced by chfunc().

#define WIFSTOPPED ( status ) (((status) & 0xff) == 0x7f)

Definition at line 28 of file pty.c.

Referenced by raise_from_check().

Function Documentation

static int chfunc	(	void *	data,
		char *	errbuf,
		size_t	errbuf_len
	)		`[static]`

Definition at line 86 of file pty.c.

References dup2(), child_info::eargp, ERROR_EXIT, getuid(), ioctl(), child_info::master, rb_cloexec_open(), rb_exec_async_signal_safe(), rb_update_max_fd(), seteuid(), child_info::slave, and child_info::slavename.

Referenced by establishShell(), and rb_f_system().

static VALUE echild_status ( VALUE self ) [static]

Definition at line 66 of file pty.c.

References rb_intern, and rb_ivar_get().

Referenced by Init_pty().

static void establishShell	(	int	argc,
		VALUE *	argv,
		struct pty_info *	info,
		char	SlaveName[DEVICELEN]
	)		`[static]`

Definition at line 151 of file pty.c.

References chfunc(), pty_info::child_pid, child_info::eargp, errno, child_info::execarg_obj, pty_info::fd, getDevice(), getenv(), getuid(), child_info::master, NULL, Qnil, rb_execarg_fixup(), rb_execarg_get(), rb_execarg_new(), rb_fork_async_signal_safe(), RB_GC_GUARD, rb_jump_tag(), rb_str_new2(), rb_sys_fail(), child_info::slave, and child_info::slavename.

Referenced by pty_getpty().

static int get_device_once	(	int *	master,
		int *	slave,
		char	SlaveName[DEVICELEN],
		int	nomesg,
		int	fail
	)		`[static]`

Definition at line 219 of file pty.c.

References chown(), DEVICELEN, getgid(), getuid(), ioctl(), mode_t, name, no_mesg(), NULL, O_CLOEXEC, rb_cloexec_open(), rb_eRuntimeError, rb_fd_fix_cloexec(), rb_raise(), rb_update_max_fd(), signal(), snprintf, and strlcpy().

Referenced by getDevice().

static void getDevice	(	int *	master,
		int *	slave,
		char	SlaveName[DEVICELEN],
		int	nomesg
	)		`[static]`

Definition at line 450 of file pty.c.

References get_device_once(), and rb_gc().

Referenced by establishShell(), and pty_open().

void Init_pty ( )

Definition at line 739 of file pty.c.

References echild_status(), eChildExited, pty_check(), pty_getpty(), pty_open(), rb_define_class_under(), rb_define_method(), rb_define_module(), rb_define_module_function(), rb_define_singleton_method(), and rb_eRuntimeError.

static int no_mesg	(	char *	slavedevice,
		int	nomesg
	)		`[static]`

Definition at line 210 of file pty.c.

Referenced by get_device_once().

NORETURN ( static void raise_from_checkpid_t pid, int status )

static VALUE pty_check	(	int	argc,
		VALUE *	argv,
		VALUE	self
	)		`[static]`

Definition at line 654 of file pty.c.

References Qnil, raise_from_check(), rb_last_status_get(), rb_scan_args(), rb_waitpid(), RTEST, and WNOHANG.

Referenced by Init_pty().

static VALUE pty_close_pty ( VALUE assoc ) [static]

Definition at line 459 of file pty.c.

References Qnil, rb_ary_entry(), rb_io_close(), RB_TYPE_P, RFILE, and T_FILE.

Referenced by pty_open().

static VALUE pty_detach_process ( struct pty_info * info ) [static]

Definition at line 535 of file pty.c.

References pty_info::child_pid, Qnil, and rb_detach_process().

Referenced by pty_getpty().

static VALUE pty_getpty	(	int	argc,
		VALUE *	argv,
		VALUE	self
	)		`[static]`

Definition at line 570 of file pty.c.

References pty_info::child_pid, DEVICELEN, establishShell(), pty_info::fd, FMODE_SYNC, MakeOpenFile, pty_detach_process(), Qnil, rb_ary_new2(), rb_ary_store(), rb_block_given_p(), rb_cFile, rb_cloexec_dup(), rb_ensure(), rb_io_mode_flags, rb_obj_alloc(), rb_obj_freeze(), rb_str_new_cstr(), rb_sys_fail(), rb_update_max_fd(), and rb_yield().

Referenced by Init_pty().

static VALUE pty_open ( VALUE klass ) [static]

Definition at line 505 of file pty.c.

References DEVICELEN, rb_io_t::fd, FMODE_DUPLEX, FMODE_READWRITE, FMODE_SYNC, FMODE_TTY, getDevice(), MakeOpenFile, rb_io_t::mode, rb_io_t::pathv, pty_close_pty(), rb_assoc_new(), rb_block_given_p(), rb_cFile, rb_cIO, rb_ensure(), rb_obj_alloc(), rb_obj_freeze(), rb_sprintf(), rb_str_new_cstr(), and rb_yield().

Referenced by Init_pty().

static void raise_from_check	(	pid_t	pid,
		int	status
	)		`[static]`

Definition at line 609 of file pty.c.

References eChildExited, kill(), msg, rb_exc_new3(), rb_exc_raise(), rb_iv_set(), rb_last_status_get(), rb_sprintf(), and WIFSTOPPED.

Referenced by pty_check().

Variable Documentation

VALUE cPTY [static]

Definition at line 670 of file pty.c.

VALUE eChildExited [static]

Definition at line 60 of file pty.c.

Referenced by Init_pty(), and raise_from_check().

Data Structures

Defines

Functions

Variables

Define Documentation

Function Documentation

Variable Documentation