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authorSven Eden <yamakuzure@gmx.net>2017-04-06 14:52:36 +0200
committerSven Eden <yamakuzure@gmx.net>2017-04-26 12:59:13 +0200
commitb96ed50e3493103d075ff2ce4c3fbad8f26b2e22 (patch)
treebd0603a28c62af0bb8c2ff479b9f411149561830 /src/basic/fd-util.h
parent7684d7642ed3e667bfeb03abec840e394f8fed35 (diff)
Prep v228: Add remaining updates from upstream (1/3)
The util.[hc] files have been stripped of a lot of functions, that got sorted into various new files representing the type of utility. This commit adds the missing files.
Diffstat (limited to 'src/basic/fd-util.h')
-rw-r--r--src/basic/fd-util.h75
1 files changed, 75 insertions, 0 deletions
diff --git a/src/basic/fd-util.h b/src/basic/fd-util.h
new file mode 100644
index 000000000..0e9182d75
--- /dev/null
+++ b/src/basic/fd-util.h
@@ -0,0 +1,75 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stdio.h>
+#include <dirent.h>
+#include <stdbool.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[]);
+
+void close_many(const int fds[], unsigned 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[], unsigned n_except);
+
+int same_fd(int a, int b);
+
+void cmsg_close_all(struct msghdr *mh);
+
+bool fdname_is_valid(const char *s);