Wrap openlog

Signed-off-by: tison <[email protected]>

Author: tisonkun

src/syslog.rs

@@ -0,0 +1,53 @@
+#[cfg(target_os = "macos")]
+pub fn openlog(ident: &str, logopt: LogFlags, facility: Facility) {
+    let ident = CString::new(ident).expect("TODO: handle error");
+    unsafe {
+        libc::openlog(ident.as_ptr(), logopt.bits(), facility as libc::c_int)
+    }
+}
+
+pub use self::consts::*;
+use std::ffi::CString;
+
+#[cfg(target_os = "macos")]
+mod consts {
+    libc_bitflags! {
+        pub struct LogFlags: libc::c_int {
+            /// Log the process id with each message: useful for identifying instantiations of
+            /// daemons.
+            LOG_PID;
+            /// If syslog() cannot pass the message to syslogd(8) it will attempt to write the
+            /// message to the console ("/dev/console").
+            LOG_CONS;
+            /// Open the connection to syslogd(8) immediately. Normally the open is delayed until
+            /// the first message is logged. Useful for programs that need to manage the order in
+            /// which file descriptors are allocated.
+            LOG_NDELAY;
+            /// Write the message to standard error output as well to the system log.
+            LOG_PERROR;
+        }
+    }
+
+    #[derive(Clone, Copy, Debug, Eq, PartialEq)]
+    #[repr(i32)]
+    #[non_exhaustive]
+    pub enum Facility {
+        LOG_KERN = libc::LOG_KERN,
+        LOG_USER = libc::LOG_USER,
+        LOG_MAIL = libc::LOG_MAIL,
+        LOG_DAEMON = libc::LOG_DAEMON,
+        LOG_AUTH = libc::LOG_AUTH,
+        LOG_SYSLOG = libc::LOG_SYSLOG,
+        LOG_LPR = libc::LOG_LPR,
+        LOG_NEWS = libc::LOG_NEWS,
+        LOG_UUCP = libc::LOG_UUCP,
+        LOG_LOCAL0 = libc::LOG_LOCAL0,
+        LOG_LOCAL1 = libc::LOG_LOCAL1,
+        LOG_LOCAL2 = libc::LOG_LOCAL2,
+        LOG_LOCAL3 = libc::LOG_LOCAL3,
+        LOG_LOCAL4 = libc::LOG_LOCAL4,
+        LOG_LOCAL5 = libc::LOG_LOCAL5,
+        LOG_LOCAL6 = libc::LOG_LOCAL6,
+        LOG_LOCAL7 = libc::LOG_LOCAL7,
+    }
+}