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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:35:18 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:35:18 +0000
commitb750101eb236130cf056c675997decbac904cc49 (patch)
treea5df1a06754bdd014cb975c051c83b01c9a97532 /src/shared/daemon-util.c
parentInitial commit. (diff)
downloadsystemd-b750101eb236130cf056c675997decbac904cc49.tar.xz
systemd-b750101eb236130cf056c675997decbac904cc49.zip
Adding upstream version 252.22.upstream/252.22
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/shared/daemon-util.c')
-rw-r--r--src/shared/daemon-util.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/src/shared/daemon-util.c b/src/shared/daemon-util.c
new file mode 100644
index 0000000..32180a1
--- /dev/null
+++ b/src/shared/daemon-util.c
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "daemon-util.h"
+#include "fd-util.h"
+#include "log.h"
+#include "string-util.h"
+
+static int notify_remove_fd_warn(const char *name) {
+ int r;
+
+ assert(name);
+
+ r = sd_notifyf(/* unset_environment = */ false,
+ "FDSTOREREMOVE=1\n"
+ "FDNAME=%s", name);
+ if (r < 0)
+ return log_warning_errno(r,
+ "Failed to remove file descriptor \"%s\" from the store, ignoring: %m",
+ name);
+
+ return 0;
+}
+
+int notify_remove_fd_warnf(const char *format, ...) {
+ _cleanup_free_ char *p = NULL;
+ va_list ap;
+ int r;
+
+ assert(format);
+
+ va_start(ap, format);
+ r = vasprintf(&p, format, ap);
+ va_end(ap);
+ if (r < 0)
+ return log_oom();
+
+ return notify_remove_fd_warn(p);
+}
+
+int close_and_notify_warn(int fd, const char *name) {
+ if (name)
+ (void) notify_remove_fd_warn(name);
+
+ return safe_close(fd);
+}
+
+static int notify_push_fd(int fd, const char *name) {
+ _cleanup_free_ char *state = NULL;
+
+ assert(fd >= 0);
+ assert(name);
+
+ state = strjoin("FDSTORE=1\n"
+ "FDNAME=", name);
+ if (!state)
+ return -ENOMEM;
+
+ return sd_pid_notify_with_fds(0, /* unset_environment = */ false, state, &fd, 1);
+}
+
+int notify_push_fdf(int fd, const char *format, ...) {
+ _cleanup_free_ char *name = NULL;
+ va_list ap;
+ int r;
+
+ assert(fd >= 0);
+ assert(format);
+
+ va_start(ap, format);
+ r = vasprintf(&name, format, ap);
+ va_end(ap);
+ if (r < 0)
+ return -ENOMEM;
+
+ return notify_push_fd(fd, name);
+}