From a6cb7f759e0f75306218bb1b5202df67c211456b Mon Sep 17 00:00:00 2001
From: Sergey Bugaev <bugaevc@serenityos.org>
Date: Wed, 5 Feb 2020 19:41:52 +0300
Subject: [PATCH] Kernel+LibC: Add some Unix signal types & definitions

---
 Kernel/UnixTypes.h         | 29 ++++++++++++++++++++++++++++-
 Libraries/LibC/signal.h    | 23 ++++++++++++++++++++++-
 Libraries/LibC/sys/types.h |  2 ++
 Libraries/LibC/sys/wait.h  |  6 ++++++
 4 files changed, 58 insertions(+), 2 deletions(-)

diff --git a/Kernel/UnixTypes.h b/Kernel/UnixTypes.h
index 1c638e6910..b7b83c5b78 100644
--- a/Kernel/UnixTypes.h
+++ b/Kernel/UnixTypes.h
@@ -274,7 +274,21 @@ typedef void (*__sighandler_t)(int);
 typedef __sighandler_t sighandler_t;
 
 typedef u32 sigset_t;
-typedef void siginfo_t;
+
+union sigval {
+    int sival_int;
+    void* sival_ptr;
+};
+
+typedef struct siginfo {
+    int si_signo;
+    int si_code;
+    pid_t si_pid;
+    uid_t si_uid;
+    void* si_addr;
+    int si_status;
+    union sigval si_value;
+} siginfo_t;
 
 struct sigaction {
     union {
@@ -294,6 +308,13 @@ struct sigaction {
 #define SIG_UNBLOCK 1
 #define SIG_SETMASK 2
 
+#define CLD_EXITED 0
+#define CLD_KILLED 1
+#define CLD_DUMPED 2
+#define CLD_TRAPPED 3
+#define CLD_STOPPED 4
+#define CLD_CONTINUED 5
+
 #define OFF_T_MAX 2147483647
 
 typedef i32 off_t;
@@ -432,6 +453,12 @@ struct timespec {
     long tv_nsec;
 };
 
+typedef enum {
+    P_ALL = 1,
+    P_PID,
+    P_PGID
+} idtype_t;
+
 typedef int clockid_t;
 
 #define CLOCK_MONOTONIC 1
diff --git a/Libraries/LibC/signal.h b/Libraries/LibC/signal.h
index 3fcb8c4441..9700f62144 100644
--- a/Libraries/LibC/signal.h
+++ b/Libraries/LibC/signal.h
@@ -35,9 +35,23 @@ typedef void (*__sighandler_t)(int);
 typedef __sighandler_t sighandler_t;
 
 typedef uint32_t sigset_t;
-typedef void siginfo_t;
 typedef uint32_t sig_atomic_t;
 
+union sigval {
+    int sival_int;
+    void* sival_ptr;
+};
+
+typedef struct siginfo {
+    int si_signo;
+    int si_code;
+    pid_t si_pid;
+    uid_t si_uid;
+    void* si_addr;
+    int si_status;
+    union sigval si_value;
+} siginfo_t;
+
 struct sigaction {
     union {
         void (*sa_handler)(int);
@@ -82,4 +96,11 @@ extern const char* sys_siglist[NSIG];
 #define SIG_UNBLOCK 1
 #define SIG_SETMASK 2
 
+#define CLD_EXITED 0
+#define CLD_KILLED 1
+#define CLD_DUMPED 2
+#define CLD_TRAPPED 3
+#define CLD_STOPPED 4
+#define CLD_CONTINUED 5
+
 __END_DECLS
diff --git a/Libraries/LibC/sys/types.h b/Libraries/LibC/sys/types.h
index 05cb15571e..2a279278e5 100644
--- a/Libraries/LibC/sys/types.h
+++ b/Libraries/LibC/sys/types.h
@@ -43,6 +43,8 @@ typedef uint32_t gid_t;
 typedef int __pid_t;
 #define pid_t __pid_t
 
+typedef int id_t;
+
 typedef int __ssize_t;
 #define ssize_t __ssize_t
 
diff --git a/Libraries/LibC/sys/wait.h b/Libraries/LibC/sys/wait.h
index 2a2fc162a1..a0b49a0046 100644
--- a/Libraries/LibC/sys/wait.h
+++ b/Libraries/LibC/sys/wait.h
@@ -44,6 +44,12 @@ __BEGIN_DECLS
 #define WEXITED 4
 #define WCONTINUED 8
 
+typedef enum {
+    P_ALL = 1,
+    P_PID,
+    P_PGID
+} idtype_t;
+
 pid_t waitpid(pid_t, int* wstatus, int options);
 pid_t wait(int* wstatus);