initial import

manual/examples/mkfsock.c

@@ -0,0 +1,43 @@
+#include <stddef.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+int 
+make_named_socket (const char *filename)
+{
+  struct sockaddr_un name;
+  int sock;
+  size_t size;
+
+  /* Create the socket.  */
+  
+  sock = socket (PF_UNIX, SOCK_DGRAM, 0);
+  if (sock < 0)
+    {
+      perror ("socket");
+      exit (EXIT_FAILURE);
+    }
+
+  /* Bind a name to the socket.  */
+
+  name.sun_family = AF_FILE;
+  strcpy (name.sun_path, filename);
+
+  /* The size of the address is
+     the offset of the start of the filename,
+     plus its length,
+     plus one for the terminating null byte.  */
+  size = (offsetof (struct sockaddr_un, sun_path)
+	  + strlen (name.sun_path) + 1);
+
+  if (bind (sock, (struct sockaddr *) &name, size) < 0)
+    {
+      perror ("bind");
+      exit (EXIT_FAILURE);
+    }
+
+  return sock;
+}