--- mkill.c
+++ mkill.c	2009-04-29 12:55:49.480409712 +0200
@@ -100,6 +100,7 @@ int main(int argc, char* argv[])
 {
     const pid_t pid = getpid();
     const pid_t sid = getsid(0);
+    const pid_t ppid = getppid();
     proc_t * this, *ptr, * last;
     struct dirent * dent;
     int dfd, num, nsig = SIGTERM;
@@ -210,6 +211,9 @@ int main(int argc, char* argv[])
 	if (sid == curr)
 	    continue;
 
+	if (ppid == curr)
+	    continue;
+
 	found = false;
 
 	strcpy(path, dent->d_name);
@@ -308,6 +312,8 @@ int main(int argc, char* argv[])
 		    for (ptr = procs; this; ptr = this) {
 			last = ptr->prev;
 			this = ptr->next;
+			if (ptr->pid != curr)
+			    continue;
 			if (ptr == procs) {
 			    if (this) this->prev = (proc_t*)0;
 			    procs = this;
--- usleep.c
+++ usleep.c	2009-04-30 11:40:00.065901445 +0200
@@ -20,20 +20,25 @@
 #ifdef   __NO_STRING_INLINES
 # undef  __NO_STRING_INLINES
 #endif
+#include <errno.h>
+#include <fcntl.h>
 #include <libgen.h>
-#include <string.h>
+#include <sched.h>
+#include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <time.h>
 #include <unistd.h>
-#ifdef _POSIX_PRIORITY_SCHEDULING
-# include <sched.h>
-#endif
 #define USAGE		"Usage:\t%s [ microseconds ]\n", we_are
 
 static char *we_are;
 int main(int argc, char **argv)
 {
     unsigned long int usec = 1;
+    int fd;
 
     if (argc > 2)
 	goto err;
@@ -45,12 +50,35 @@ int main(int argc, char **argv)
 	    goto err;
     }
 
-    if (usec)
+    if ((fd = open("/dev/null", O_RDWR|O_NOCTTY|O_CLOEXEC)) >= 0) {
+	dup2(fd, 0);
+	dup2(fd, 1);
+	dup2(fd, 2);
+	if (fd > 2) close(fd);
+    }
+
+    if (usec) {
+#if defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 199309L)
+	struct timespec req = {0, 0}, rem = {0, 0};
+	int ret;
+
+	while (usec >= 1000000UL) {
+	    req.tv_sec++;
+	    usec -= 1000000UL;
+	}
+	req.tv_nsec = usec * 1000;
+
+	do {
+	    ret = nanosleep(&req, &rem);
+	    if (ret == 0 || errno != EINTR)
+		break;
+	    req = rem;
+	} while (req.tv_nsec > 0 || req.tv_sec > 0);
+#else
 	usleep(usec);
-#ifdef _POSIX_PRIORITY_SCHEDULING
-    else
-	(void)sched_yield();
 #endif
+    } else
+	(void)sched_yield();
     _exit(0);
 
     /* Do this at the end for speed */