Kernel/LibC: Add {get,set}pgrp()

libc/include/sys/syscall.h

@@ -48,6 +48,8 @@ __BEGIN_DECLS
 #define SYS_SIGNAL_DONE 41
 #define SYS_TCSETPGRP 42
 #define SYS_GET_PID 43
+#define SYS_GET_PGRP 44
+#define SYS_SET_PGRP 45
 
 __END_DECLS
 

libc/unistd.cpp

@@ -208,6 +208,11 @@ gid_t getegid(void)
 	return syscall(SYS_GET_EGID);
 }
 
+pid_t getpgrp(void)
+{
+	return syscall(SYS_GET_PGRP);
+}
+
 int seteuid(uid_t uid)
 {
 	return syscall(SYS_SET_EUID, uid);
@@ -238,6 +243,11 @@ int setregid(gid_t rgid, gid_t egid)
 	return syscall(SYS_SET_REGID, rgid, egid);
 }
 
+pid_t setpgrp(void)
+{
+	return syscall(SYS_SET_PGRP);
+}
+
 int tcsetpgrp(int fildes, pid_t pgid_id)
 {
 	return syscall(SYS_TCSETPGRP, fildes, pgid_id);