filestuff.c File Reference

#include "common-defs.h"
#include "filestuff.h"
#include "gdb_vecs.h"
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <algorithm>
#include <sys/socket.h>
#include <sys/resource.h>
#include <dirent.h>

Go to the source code of this file.

Macros
#define	HAVE_F_GETFD   F_GETFD
#define	HAVE_SOCKETS   1
#define	O_CLOEXEC   0
#define	SOCK_CLOEXEC   0

Functions
static int	fdwalk (int(*func)(void *, int), void *arg)
static int	do_mark_open_fd (void *ignore, int fd)
void	notice_open_fds (void)
void	mark_fd_no_cloexec (int fd)
void	unmark_fd_no_cloexec (int fd)
static int	do_close (void *ignore, int fd)
void	close_most_fds (void)
static void	mark_cloexec (int fd)
static void	maybe_mark_cloexec (int fd)
static void	socket_mark_cloexec (int fd)
int	gdb_open_cloexec (const char *filename, int flags, unsigned long mode)
gdb_file_up	gdb_fopen_cloexec (const char *filename, const char *opentype)
int	gdb_socketpair_cloexec (int domain, int style, int protocol, int filedes[2])
int	gdb_socket_cloexec (int domain, int style, int protocol)
int	gdb_pipe_cloexec (int filedes[2])
static void	do_close_cleanup (void *arg)
struct cleanup *	make_cleanup_close (int fd)

Variables
static std::vector< int >	open_fds
static int	trust_o_cloexec

Macro Definition Documentation

HAVE_F_GETFD

#define HAVE_F_GETFD   F_GETFD

Definition at line 35 of file filestuff.c.

HAVE_SOCKETS

#define HAVE_SOCKETS   1

Definition at line 36 of file filestuff.c.

O_CLOEXEC

#define O_CLOEXEC   0

Definition at line 44 of file filestuff.c.

Referenced by gdb_fopen_cloexec(), gdb_open_cloexec(), and gdb_pipe_cloexec().

SOCK_CLOEXEC

#define SOCK_CLOEXEC   0

Definition at line 48 of file filestuff.c.

Referenced by gdb_socket_cloexec(), gdb_socketpair_cloexec(), and socket_mark_cloexec().

Function Documentation

close_most_fds()

void close_most_fds

(

void

)

Definition at line 216 of file filestuff.c.

References do_close(), and fdwalk().

Referenced by fork_inferior(), pipe_open(), and shell_escape().

do_close()

static int do_close ( void *  ignore, int  fd  )

static

Definition at line 198 of file filestuff.c.

References open_fds.

Referenced by close_most_fds().

do_close_cleanup()

static void do_close_cleanup ( void *  arg )

static

Definition at line 403 of file filestuff.c.

Referenced by make_cleanup_close().

do_mark_open_fd()

static int do_mark_open_fd ( void *  ignore, int  fd  )

static

Definition at line 159 of file filestuff.c.

References open_fds.

Referenced by mark_fd_no_cloexec(), and notice_open_fds().

fdwalk()

static int fdwalk ( int(*)(void *, int)  func, void *  arg  )

static

Definition at line 65 of file filestuff.c.

References func.

Referenced by close_most_fds(), and notice_open_fds().

gdb_fopen_cloexec()

gdb_file_up gdb_fopen_cloexec	(	const char *	filename,
		const char *	opentype
	)

Definition at line 296 of file filestuff.c.

References maybe_mark_cloexec(), and O_CLOEXEC.

Referenced by auto_load_objfile_script_1(), command_from_pid(), commandline_from_pid(), compile_to_object(), dump_binary_file(), linux_common_core_of_thread(), linux_proc_get_int(), linux_proc_pending_signals(), linux_proc_pid_get_state(), linux_proc_tid_get_name(), linux_xfer_osdata_cpus(), linux_xfer_osdata_modules(), linux_xfer_osdata_msg(), linux_xfer_osdata_sem(), linux_xfer_osdata_shm(), stdio_file::open(), print_sockets(), remote_file_get(), remote_file_put(), restore_binary_file(), tfile_start(), write_psymtabs_to_index(), and xml_fetch_content_from_file().

gdb_open_cloexec()

int gdb_open_cloexec	(	const char *	filename,
		int	flags,
		unsigned long	mode
	)

Definition at line 283 of file filestuff.c.

References flags, maybe_mark_cloexec(), and O_CLOEXEC.

Referenced by core_open(), find_and_open_source(), gdb_bfd_open(), hardwire_open(), inf_child_fileio_open(), linux_mntns_access_fs(), linux_mntns_open_cloexec(), linux_proc_xfer_partial(), linux_proc_xfer_spu(), mnsh_handle_open(), open_terminal_stream(), openp(), procfs_xfer_auxv(), remote_fileio_func_open(), solib_find_1(), and tfile_open().

gdb_pipe_cloexec()

int gdb_pipe_cloexec

(

int

filedes[2]

)

Definition at line 373 of file filestuff.c.

References _, gdb_assert_not_reached, mark_cloexec(), maybe_mark_cloexec(), and O_CLOEXEC.

Referenced by linux_async_pipe(), serial_event_open(), and tui_initialize_io().

gdb_socket_cloexec()

int gdb_socket_cloexec	(	int	domain,
		int	style,
		int	protocol
	)

Definition at line 359 of file filestuff.c.

References SOCK_CLOEXEC, and socket_mark_cloexec().

Referenced by gdb_connect_sync_socket(), and net_open().

gdb_socketpair_cloexec()

int gdb_socketpair_cloexec	(	int	domain,
		int	style,
		int	protocol,
		int	filedes[2]
	)

Definition at line 338 of file filestuff.c.

References _, gdb_assert_not_reached, SOCK_CLOEXEC, and socket_mark_cloexec().

Referenced by gdb_pipe(), linux_mntns_get_helper(), and pipe_open().

make_cleanup_close()

struct cleanup* make_cleanup_close

(

int

fd

)

Definition at line 413 of file filestuff.c.

References do_close_cleanup(), make_cleanup_dtor(), xfree(), and XNEW.

Referenced by forward_search_command(), get_filename_and_charpos(), iterate_over_mappings(), linux_mntns_access_fs(), procfs_open_1(), procfs_pidlist(), and reverse_search_command().

mark_cloexec()

static void mark_cloexec ( int  fd )

static

Definition at line 236 of file filestuff.c.

References trust_o_cloexec.

Referenced by gdb_pipe_cloexec(), maybe_mark_cloexec(), and socket_mark_cloexec().

mark_fd_no_cloexec()

void mark_fd_no_cloexec

(

int

fd

)

Definition at line 176 of file filestuff.c.

References do_mark_open_fd().

Referenced by darwin_pre_ptrace().

maybe_mark_cloexec()

static void maybe_mark_cloexec ( int  fd )

static

Definition at line 259 of file filestuff.c.

References mark_cloexec(), and trust_o_cloexec.

Referenced by gdb_fopen_cloexec(), gdb_open_cloexec(), and gdb_pipe_cloexec().

notice_open_fds()

void notice_open_fds

(

void

)

Definition at line 168 of file filestuff.c.

References do_mark_open_fd(), and fdwalk().

Referenced by captured_main_1().

socket_mark_cloexec()

static void socket_mark_cloexec ( int  fd )

static

Definition at line 270 of file filestuff.c.

References mark_cloexec(), SOCK_CLOEXEC, and trust_o_cloexec.

Referenced by gdb_socket_cloexec(), and gdb_socketpair_cloexec().

unmark_fd_no_cloexec()

void unmark_fd_no_cloexec

(

int

fd

)

Definition at line 184 of file filestuff.c.

References _, gdb_assert_not_reached, and open_fds.

Referenced by darwin_ptrace_him().

Variable Documentation

open_fds

std::vector<int> open_fds

static

Definition at line 153 of file filestuff.c.

Referenced by do_close(), do_mark_open_fd(), and unmark_fd_no_cloexec().

trust_o_cloexec

int trust_o_cloexec

static

Definition at line 230 of file filestuff.c.

Referenced by mark_cloexec(), maybe_mark_cloexec(), and socket_mark_cloexec().