diff --git a/programs/develop/ktcc/trunk/bin/lib/libc.def b/programs/develop/ktcc/trunk/bin/lib/libc.def
index 733b62559..624e6e823 100644
--- a/programs/develop/ktcc/trunk/bin/lib/libc.def
+++ b/programs/develop/ktcc/trunk/bin/lib/libc.def
@@ -90,7 +90,7 @@ strrev
 strspn
 strstr
 strtok
-strtok_s
+strtok_r
 strxfrm
 __errno
 ;____SYS____
diff --git a/programs/develop/ktcc/trunk/libc.obj/include/string.h b/programs/develop/ktcc/trunk/libc.obj/include/string.h
index f404e36fe..348bef82b 100644
--- a/programs/develop/ktcc/trunk/libc.obj/include/string.h
+++ b/programs/develop/ktcc/trunk/libc.obj/include/string.h
@@ -32,10 +32,7 @@ DLLAPI char* strrchr(const char* s, int c);
 DLLAPI size_t strspn(const char* s1, const char* s2);
 DLLAPI char* strstr(const char* s1, const char* s2);
 DLLAPI char* strtok(char* s1, const char* s2);
-DLLAPI char* strtok_s(char* s1, const char* s2, char** saveptr);
-#ifndef strtok_r
-#define strtok_r strtok_s
-#endif
+DLLAPI char* strtok_r(char* s1, const char* s2, char** saveptr);
 
 DLLAPI char* strerror(int errnum);
 DLLAPI size_t strlen(const char* s);
diff --git a/programs/develop/ktcc/trunk/libc.obj/samples/malloc_test.c b/programs/develop/ktcc/trunk/libc.obj/samples/malloc_test.c
index 95c3c3442..154f5f6f4 100644
--- a/programs/develop/ktcc/trunk/libc.obj/samples/malloc_test.c
+++ b/programs/develop/ktcc/trunk/libc.obj/samples/malloc_test.c
@@ -15,7 +15,7 @@
         }                                                   \
     } while (0)
 
-// c behind a and b
+// c between a and b
 #define IN_RANGE(a, b, c, len) ((a > c && c > b) || ((a > c + len && c + len > b)))
 
 bool test_malloc_basic_allocation()
diff --git a/programs/develop/ktcc/trunk/libc.obj/samples/system_test.c b/programs/develop/ktcc/trunk/libc.obj/samples/system_test.c
index 09f32f1d9..b49225be6 100644
--- a/programs/develop/ktcc/trunk/libc.obj/samples/system_test.c
+++ b/programs/develop/ktcc/trunk/libc.obj/samples/system_test.c
@@ -1,11 +1,14 @@
 #include <stdlib.h>
 #include <stdio.h>
+#include <sys/ksys.h>
 
 #define EXIT_CODE_FORMAT "Exit Code: %d\n"
 
 int main()
 {
-    printf(EXIT_CODE_FORMAT, system("ls"));
+    printf(EXIT_CODE_FORMAT, system("ls ."));
+
+    _ksys_delay(500);
     printf(EXIT_CODE_FORMAT, system("/sys/sysmon"));
 
     return 0;
diff --git a/programs/develop/ktcc/trunk/libc.obj/source/libc.c b/programs/develop/ktcc/trunk/libc.obj/source/libc.c
index 17f05584c..531298444 100644
--- a/programs/develop/ktcc/trunk/libc.obj/source/libc.c
+++ b/programs/develop/ktcc/trunk/libc.obj/source/libc.c
@@ -82,6 +82,7 @@
 #include "string/strstr.c"
 #include "string/strtok.c"
 #include "string/strxfrm.c"
+
 #include "stdlib/abs.c"
 #include "stdlib/assert.c"
 #include "stdlib/atof.c"
@@ -211,7 +212,7 @@ ksys_dll_t EXPORTS[] = {
     { "strspn", &strspn },
     { "strstr", &strstr },
     { "strtok", &strtok },
-    { "strtok_s", &strtok_s},
+    { "strtok_r", &strtok_r},
     { "strxfrm", &strxfrm },
     { "strpbrk", &strpbrk },
     { "__errno", &__errno },
diff --git a/programs/develop/ktcc/trunk/libc.obj/source/stdlib/_exit.h b/programs/develop/ktcc/trunk/libc.obj/source/stdlib/_exit.h
index ad7e4233c..0e0865a15 100644
--- a/programs/develop/ktcc/trunk/libc.obj/source/stdlib/_exit.h
+++ b/programs/develop/ktcc/trunk/libc.obj/source/stdlib/_exit.h
@@ -2,13 +2,13 @@
 #define __STDLIB_EXIT_H__
 
 #include <stdio.h>
-
+#include <sys/dir.h>
 #include <sys/ksys.h>
 
-#define __PATH_TO_STATUS_FILE        "/tmp0/1/"
+#define __PATH_TO_STATUS_FILE        "/tmp0/1/.libc"
 #define __STATUS_FILE_EXTENSION      ".status"
 #define __STATUS_FILE_FORMAT         "%d"
-#define __FULL_STATUS_FILE_NAME      __PATH_TO_STATUS_FILE "%d" __STATUS_FILE_EXTENSION
+#define __FULL_STATUS_FILE_NAME      __PATH_TO_STATUS_FILE "/%d" __STATUS_FILE_EXTENSION
 #define __FULL_STATUS_FILE_NAME_SIZE (sizeof(__PATH_TO_STATUS_FILE) + 32 + sizeof(__STATUS_FILE_EXTENSION))
 
 void __libc_exit(int status, void (*before_exit)(int status));
@@ -16,6 +16,8 @@ void __libc_exit(int status, void (*before_exit)(int status));
 // Save exit code
 inline void WRITE_EXIT_CODE(int status)
 {
+    mkdir(__PATH_TO_STATUS_FILE);
+
     char buff[__FULL_STATUS_FILE_NAME_SIZE];
     ksys_thread_t t;
 
@@ -35,14 +37,13 @@ inline void WRITE_EXIT_CODE(int status)
 }
 
 // Read exit code
-inline int READ_EXIT_CODE(int pid, ksys_thread_t *t)
+inline int READ_EXIT_CODE(int pid, ksys_thread_t* t)
 {
     char buff[__FULL_STATUS_FILE_NAME_SIZE];
     int status = 0;
     bool free_t = false;
 
-    if(!t)
-    {
+    if (!t) {
         t = malloc(sizeof(ksys_thread_t));
         _ksys_thread_info(t, -1);
         free_t = true;
@@ -53,14 +54,12 @@ inline int READ_EXIT_CODE(int pid, ksys_thread_t *t)
     if (f) {
         fscanf(f, __STATUS_FILE_FORMAT, &status);
         fclose(f);
-    }
-    else if(t && t->slot_state == 4)    // it was stopped before it created status file
+    } else if (t && t->slot_state == 4) // it was stopped before it created status file
     {
         status = -1;
     }
 
-    if(free_t)
-    {
+    if (free_t) {
         free(t);
     }
 
diff --git a/programs/develop/ktcc/trunk/libc.obj/source/stdlib/system.c b/programs/develop/ktcc/trunk/libc.obj/source/stdlib/system.c
index dd96c42dd..93ca88ca8 100644
--- a/programs/develop/ktcc/trunk/libc.obj/source/stdlib/system.c
+++ b/programs/develop/ktcc/trunk/libc.obj/source/stdlib/system.c
@@ -36,7 +36,6 @@ int system(const char* command)
     // wait of end of shell
 
     ksys_thread_t t;
-    int slot = _ksys_get_thread_slot(pid);
     while (_ksys_thread_info(&t, pid) != -1 && t.slot_state != 3 && t.slot_state != 4 && t.slot_state != 9) {
         _ksys_thread_yield();
     }
diff --git a/programs/develop/ktcc/trunk/libc.obj/source/string/strtok.c b/programs/develop/ktcc/trunk/libc.obj/source/string/strtok.c
index dbed8f4ae..7d2330951 100644
--- a/programs/develop/ktcc/trunk/libc.obj/source/string/strtok.c
+++ b/programs/develop/ktcc/trunk/libc.obj/source/string/strtok.c
@@ -1,8 +1,54 @@
+/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
 #include <string.h>
 
-char* strtok(char* s, const char* delim)
+char* strtok_r(char* s, const char* delim, char** last)
 {
-    static char *saveptr;
+    char *spanp, *tok;
+    int c, sc;
 
-    return strtok_s(s, delim, &saveptr);
+    if (s == NULL && (s = *last) == NULL)
+        return (NULL);
+
+    /*
+     * Skip (span) leading delimiters (s += strspn(s, delim), sort of).
+     */
+cont:
+    c = *s++;
+    for (spanp = (char*)delim; (sc = *spanp++) != 0;) {
+        if (c == sc)
+            goto cont;
+    }
+
+    if (c == 0) { /* no non-delimiter characters */
+        *last = NULL;
+        return (NULL);
+    }
+    tok = s - 1;
+
+    /*
+     * Scan token (scan for delimiters: s += strcspn(s, delim), sort of).
+     * Note that delim must have one NUL; we stop if we see that, too.
+     */
+    for (;;) {
+        c = *s++;
+        spanp = (char*)delim;
+        do {
+            if ((sc = *spanp++) == c) {
+                if (c == 0)
+                    s = NULL;
+                else
+                    s[-1] = '\0';
+                *last = s;
+                return (tok);
+            }
+        } while (sc != 0);
+    }
+    /* NOTREACHED */
+}
+
+char *strtok(char *s, const char *delim)
+{
+	static char *last;
+
+	return (strtok_r(s, delim, &last));
 }
diff --git a/programs/develop/ktcc/trunk/libc.obj/source/string/strtok_s.c b/programs/develop/ktcc/trunk/libc.obj/source/string/strtok_s.c
deleted file mode 100644
index 83c417aed..000000000
--- a/programs/develop/ktcc/trunk/libc.obj/source/string/strtok_s.c
+++ /dev/null
@@ -1,48 +0,0 @@
-/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
-#include <string.h>
-
-char* strtok_s(char* s, const char* delim, char** saveptr)
-{
-    const char* spanp;
-    int c, sc;
-    char* tok;
-
-    if (s == NULL && (s = *saveptr) == NULL)
-        return (NULL);
-
-    /*
-     * Skip (span) leading delimiters (s += strspn(s, delim), sort of).
-     */
-cont:
-    c = *s++;
-    for (spanp = delim; (sc = *spanp++) != 0;) {
-        if (c == sc)
-            goto cont;
-    }
-
-    if (c == 0) { /* no non-delimiter characters */
-        *saveptr = NULL;
-        return (NULL);
-    }
-    tok = s - 1;
-
-    /*
-     * Scan token (scan for delimiters: s += strcspn(s, delim), sort of).
-     * Note that delim must have one NUL; we stop if we see that, too.
-     */
-    for (;;) {
-        c = *s++;
-        spanp = delim;
-        do {
-            if ((sc = *spanp++) == c) {
-                if (c == 0)
-                    s = NULL;
-                else
-                    s[-1] = 0;
-                *saveptr = s;
-                return (tok);
-            }
-        } while (sc != 0);
-    }
-    /* NOTREACHED */
-}