diff options
| author | Michael Biebl <biebl@debian.org> | 2021-10-01 23:05:04 +0200 |
|---|---|---|
| committer | Michael Biebl <biebl@debian.org> | 2021-10-01 23:05:04 +0200 |
| commit | e74c568b07b50b97873fb4ee1d776dedefbd54d6 (patch) | |
| tree | 3469f17ea9af91f7ff169b890633bda68b0cf76e /shared/systemd/src/basic/fd-util.h | |
| parent | bfe522304da217296e2a61040f58e35ec5d6f3f2 (diff) | |
New upstream version 1.32.12 upstream/1.32.12
Diffstat (limited to 'shared/systemd/src/basic/fd-util.h')
| -rw-r--r-- | shared/systemd/src/basic/fd-util.h | 108 |
1 files changed, 0 insertions, 108 deletions
diff --git a/shared/systemd/src/basic/fd-util.h b/shared/systemd/src/basic/fd-util.h deleted file mode 100644 index 2162537b..00000000 --- a/shared/systemd/src/basic/fd-util.h +++ /dev/null @@ -1,108 +0,0 @@ -/* SPDX-License-Identifier: LGPL-2.1-or-later */ -#pragma once - -#include <dirent.h> -#include <stdbool.h> -#include <stdio.h> -#include <sys/socket.h> - -#include "macro.h" - -/* Make sure we can distinguish fd 0 and NULL */ -#define FD_TO_PTR(fd) INT_TO_PTR((fd)+1) -#define PTR_TO_FD(p) (PTR_TO_INT(p)-1) - -int close_nointr(int fd); -int safe_close(int fd); -void safe_close_pair(int p[static 2]); - -static inline int safe_close_above_stdio(int fd) { - if (fd < 3) /* Don't close stdin/stdout/stderr, but still invalidate the fd by returning -1 */ - return -1; - - return safe_close(fd); -} - -void close_many(const int fds[], size_t n_fd); - -int fclose_nointr(FILE *f); -FILE* safe_fclose(FILE *f); -DIR* safe_closedir(DIR *f); - -static inline void closep(int *fd) { - safe_close(*fd); -} - -static inline void close_pairp(int (*p)[2]) { - safe_close_pair(*p); -} - -static inline void fclosep(FILE **f) { - safe_fclose(*f); -} - -DEFINE_TRIVIAL_CLEANUP_FUNC(FILE*, pclose); -DEFINE_TRIVIAL_CLEANUP_FUNC(DIR*, closedir); - -#define _cleanup_close_ _cleanup_(closep) -#define _cleanup_fclose_ _cleanup_(fclosep) -#define _cleanup_pclose_ _cleanup_(pclosep) -#define _cleanup_closedir_ _cleanup_(closedirp) -#define _cleanup_close_pair_ _cleanup_(close_pairp) - -int fd_nonblock(int fd, bool nonblock); -int fd_cloexec(int fd, bool cloexec); - -int close_all_fds(const int except[], size_t n_except); - -int same_fd(int a, int b); - -void cmsg_close_all(struct msghdr *mh); - -bool fdname_is_valid(const char *s); - -int fd_get_path(int fd, char **ret); - -int move_fd(int from, int to, int cloexec); - -enum { - ACQUIRE_NO_DEV_NULL = 1 << 0, - ACQUIRE_NO_MEMFD = 1 << 1, - ACQUIRE_NO_PIPE = 1 << 2, - ACQUIRE_NO_TMPFILE = 1 << 3, - ACQUIRE_NO_REGULAR = 1 << 4, -}; - -int acquire_data_fd(const void *data, size_t size, unsigned flags); - -int fd_duplicate_data_fd(int fd); - -int fd_move_above_stdio(int fd); - -int rearrange_stdio(int original_input_fd, int original_output_fd, int original_error_fd); - -static inline int make_null_stdio(void) { - return rearrange_stdio(-1, -1, -1); -} - -/* Like TAKE_PTR() but for file descriptors, resetting them to -1 */ -#define TAKE_FD(fd) \ - ({ \ - int _fd_ = (fd); \ - (fd) = -1; \ - _fd_; \ - }) - -/* Like free_and_replace(), but for file descriptors */ -#define CLOSE_AND_REPLACE(a, b) \ - ({ \ - int *_fdp_ = &(a); \ - safe_close(*_fdp_); \ - *_fdp_ = TAKE_FD(b); \ - 0; \ - }) - - -int fd_reopen(int fd, int flags); - -int read_nr_open(void); |