1 files changed, 39 insertions, 0 deletions
diff --git a/reference/C/CONTRIB/OR_USING_C/10.1.c b/reference/C/CONTRIB/OR_USING_C/10.1.c
new file mode 100644
index 0000000..999d4d3
--- /dev/null
+++ b/reference/C/CONTRIB/OR_USING_C/10.1.c
@@ -0,0 +1,39 @@
+#include <sys/ioctl.h>
+#include "10.h"
+
+int MyPid;        /* the shell's process id       */
+int MyPgrp;       /* the shell's process group    */
+int TermPgrp;     /* the terminal's process group */
+
+setup()
+{
+    /*
+     * Obtain shell's process id.
+     */
+    MyPid = getpid();
+
+    /*
+     * Just use pid for process group.  This is
+     * not a requirement, just convenient.  Other
+     * ways of picking a process group can be used.
+     */
+    MyPgrp = MyPid;
+    TermPgrp = MyPid;
+
+    /*
+     * Set the shell's process group.
+     */
+    if (setpgrp(MyPid, MyPgrp) < 0) {
+        perror("setpgrp");
+        exit(1);
+    }
+
+    /*
+     * Set the terminal's process group.
+     */
+    if (ioctl(1, TIOCSPGRP, &MyPgrp) < 0) {
+        perror("ioctl");
+        exit(1);
+    }
+}
+