systemd/0085-fd-util-add-new-fd_cloexec_many-helper.patch
Jan Macku 79350f79d8 systemd-252-2
Resolves: #2137584,#2138081,#2141979
2022-12-09 09:36:14 +01:00

56 lines
1.7 KiB
Diff

From b9223cd76c73fa5cf3ed19a2238980047bf13826 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Fri, 4 Nov 2022 18:20:19 +0100
Subject: [PATCH] fd-util: add new fd_cloexec_many() helper
(cherry picked from commit ed18c22c989495aab36512f03449222cfcf79aa7)
Related: #2138081
---
src/basic/fd-util.c | 19 +++++++++++++++++++
src/basic/fd-util.h | 1 +
2 files changed, 20 insertions(+)
diff --git a/src/basic/fd-util.c b/src/basic/fd-util.c
index 6ed04449bf..66bb7569bb 100644
--- a/src/basic/fd-util.c
+++ b/src/basic/fd-util.c
@@ -174,6 +174,25 @@ int fd_cloexec(int fd, bool cloexec) {
return RET_NERRNO(fcntl(fd, F_SETFD, nflags));
}
+int fd_cloexec_many(const int fds[], size_t n_fds, bool cloexec) {
+ int ret = 0, r;
+
+ assert(n_fds == 0 || fds);
+
+ for (size_t i = 0; i < n_fds; i++) {
+ if (fds[i] < 0) /* Skip gracefully over already invalidated fds */
+ continue;
+
+ r = fd_cloexec(fds[i], cloexec);
+ if (r < 0 && ret >= 0) /* Continue going, but return first error */
+ ret = r;
+ else
+ ret = 1; /* report if we did anything */
+ }
+
+ return ret;
+}
+
_pure_ static bool fd_in_set(int fd, const int fdset[], size_t n_fdset) {
assert(n_fdset == 0 || fdset);
diff --git a/src/basic/fd-util.h b/src/basic/fd-util.h
index d9896e27e8..29c7d86f27 100644
--- a/src/basic/fd-util.h
+++ b/src/basic/fd-util.h
@@ -56,6 +56,7 @@ DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(DIR*, closedir, NULL);
int fd_nonblock(int fd, bool nonblock);
int fd_cloexec(int fd, bool cloexec);
+int fd_cloexec_many(const int fds[], size_t n_fds, bool cloexec);
int get_max_fd(void);