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/* Low-level file-handling.
Copyright (C) 2012-2016 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef FILESTUFF_H
#define FILESTUFF_H
/* Note all the file descriptors which are open when this is called.
These file descriptors will not be closed by close_most_fds. */
extern void notice_open_fds (void);
/* Mark a file descriptor as inheritable across an exec. */
extern void mark_fd_no_cloexec (int fd);
/* Mark a file descriptor as no longer being inheritable across an
exec. This is only meaningful when FD was previously passed to
mark_fd_no_cloexec. */
extern void unmark_fd_no_cloexec (int fd);
/* Close all open file descriptors other than those marked by
'notice_open_fds', and stdin, stdout, and stderr. Errors that
occur while closing are ignored. */
extern void close_most_fds (void);
/* Like 'open', but ensures that the returned file descriptor has the
close-on-exec flag set. */
extern int gdb_open_cloexec (const char *filename, int flags,
/* mode_t */ unsigned long mode);
/* Like 'fopen', but ensures that the returned file descriptor has the
close-on-exec flag set. */
extern FILE *gdb_fopen_cloexec (const char *filename, const char *opentype);
/* Like 'socketpair', but ensures that the returned file descriptors
have the close-on-exec flag set. */
extern int gdb_socketpair_cloexec (int domain, int style, int protocol,
int filedes[2]);
/* Like 'socket', but ensures that the returned file descriptor has
the close-on-exec flag set. */
extern int gdb_socket_cloexec (int domain, int style, int protocol);
/* Like 'pipe', but ensures that the returned file descriptors have
the close-on-exec flag set. */
extern int gdb_pipe_cloexec (int filedes[2]);
/* Return a new cleanup that closes FD. */
extern struct cleanup *make_cleanup_close (int fd);
#endif /* FILESTUFF_H */
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