1 files changed, 21 insertions, 0 deletions
diff --git a/c/src/exec/posix/src/unistd.c b/c/src/exec/posix/src/unistd.c
index f5d13b3adf..44d08e592b 100644
--- a/c/src/exec/posix/src/unistd.c
+++ b/c/src/exec/posix/src/unistd.c
@@ -2,10 +2,31 @@
  *  $Id$
  */
 
+#include <time.h>
 #include <unistd.h>
 
 #include <rtems/system.h>
 
+
+/*
+ *  3.4.3 Delay Process Execution, P1003.1b-1993, p. 73
+ */
+
+unsigned int sleep(
+  unsigned int seconds
+)
+{
+  /* XXX can we get away with this implementation? */
+  struct timespec tp;
+  struct timespec tm;
+
+  tp.tv_sec = seconds;
+  tp.tv_nsec = 0;
+
+  nanosleep( &tp, &tm );
+
+  return tm->tv_sec;       /* seconds remaining */
+}
 /*
  *  4.8.1 Get Configurable System Variables, P1003.1b-1993, p. 95
  */