GDB (xrefs)
filestuff.h
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1 /* Low-level file-handling.
2  Copyright (C) 2012-2015 Free Software Foundation, Inc.
3 
4  This file is part of GDB.
5 
6  This program is free software; you can redistribute it and/or modify
7  it under the terms of the GNU General Public License as published by
8  the Free Software Foundation; either version 3 of the License, or
9  (at your option) any later version.
10 
11  This program is distributed in the hope that it will be useful,
12  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  GNU General Public License for more details.
15 
16  You should have received a copy of the GNU General Public License
17  along with this program. If not, see <http://www.gnu.org/licenses/>. */
18 
19 #ifndef FILESTUFF_H
20 #define FILESTUFF_H
21 
22 /* Note all the file descriptors which are open when this is called.
23  These file descriptors will not be closed by close_most_fds. */
24 
25 extern void notice_open_fds (void);
26 
27 /* Mark a file descriptor as inheritable across an exec. */
28 
29 extern void mark_fd_no_cloexec (int fd);
30 
31 /* Mark a file descriptor as no longer being inheritable across an
32  exec. This is only meaningful when FD was previously passed to
33  mark_fd_no_cloexec. */
34 
35 extern void unmark_fd_no_cloexec (int fd);
36 
37 /* Close all open file descriptors other than those marked by
38  'notice_open_fds', and stdin, stdout, and stderr. Errors that
39  occur while closing are ignored. */
40 
41 extern void close_most_fds (void);
42 
43 /* Like 'open', but ensures that the returned file descriptor has the
44  close-on-exec flag set. */
45 
46 extern int gdb_open_cloexec (const char *filename, int flags,
47  /* mode_t */ unsigned long mode);
48 
49 /* Like 'fopen', but ensures that the returned file descriptor has the
50  close-on-exec flag set. */
51 
52 extern FILE *gdb_fopen_cloexec (const char *filename, const char *opentype);
53 
54 /* Like 'socketpair', but ensures that the returned file descriptors
55  have the close-on-exec flag set. */
56 
57 extern int gdb_socketpair_cloexec (int domain, int style, int protocol,
58  int filedes[2]);
59 
60 /* Like 'socket', but ensures that the returned file descriptor has
61  the close-on-exec flag set. */
62 
63 extern int gdb_socket_cloexec (int domain, int style, int protocol);
64 
65 /* Like 'pipe', but ensures that the returned file descriptors have
66  the close-on-exec flag set. */
67 
68 extern int gdb_pipe_cloexec (int filedes[2]);
69 
70 /* Return a new cleanup that closes FD. */
71 
72 extern struct cleanup *make_cleanup_close (int fd);
73 
74 #endif /* FILESTUFF_H */
void mark_fd_no_cloexec(int fd)
Definition: filestuff.c:176
int gdb_socketpair_cloexec(int domain, int style, int protocol, int filedes[2])
Definition: filestuff.c:346
int gdb_socket_cloexec(int domain, int style, int protocol)
Definition: filestuff.c:367
void notice_open_fds(void)
Definition: filestuff.c:168
mach_port_t kern_return_t mach_port_t msgports mach_port_t kern_return_t pid_t pid mach_port_t kern_return_t mach_port_t task mach_port_t kern_return_t int flags
Definition: gnu-nat.c:1885
struct cleanup * make_cleanup_close(int fd)
Definition: filestuff.c:421
FILE * gdb_fopen_cloexec(const char *filename, const char *opentype)
Definition: filestuff.c:304
int gdb_pipe_cloexec(int filedes[2])
Definition: filestuff.c:381
int gdb_open_cloexec(const char *filename, int flags, unsigned long mode)
Definition: filestuff.c:291
void unmark_fd_no_cloexec(int fd)
Definition: filestuff.c:184
void close_most_fds(void)
Definition: filestuff.c:224