1 files changed, 38 insertions, 1 deletions
diff --git a/libc/syscall/syslibc.c b/libc/syscall/syslibc.c
index 1e604e8..1dcb013 100644
--- a/libc/syscall/syslibc.c
+++ b/libc/syscall/syslibc.c
@@ -4,6 +4,7 @@
  */
 
 #include <sys/types.h>
+#include <errno.h>
 #include <time.h>
 
 /* MSDOS has it's own versions */
@@ -124,7 +125,6 @@ int fd;
 off_t posn;
 int where;
 {
-   off_t __lseek();
    if( __lseek(fd, &posn, where) < 0 ) return -1;
    else return posn;
 }
@@ -280,6 +280,43 @@ int opts;
 }
 #endif
 
+/********************** Function killpg ************************************/
+
+#ifdef L_killpg
+int
+killpg(pid, sig)
+int pid;
+int sig;
+{
+   if(pid == 0)
+       pid = getpgrp();
+   if(pid > 1)
+       return kill(-pid, sig);
+   errno = EINVAL;
+   return -1;
+}
+#endif
+
+/********************** Function getpgrp ************************************/
+
+#ifdef L_getpgrp
+int
+getpgrp()
+{
+   return getpgid(0);
+}
+#endif
+
+/********************** Function setpgrp ************************************/
+
+#ifdef L_setpgrp
+int
+setpgrp()
+{
+   return setpgid(0,0);
+}
+#endif
+
 /********************** Function sleep ************************************/
 
 #ifdef L_sleep