1 files changed, 84 insertions, 0 deletions
diff --git a/Source/CursesDialog/form/fty_ipv4.c b/Source/CursesDialog/form/fty_ipv4.c
new file mode 100644
index 000000000..4ac8a50ec
--- /dev/null
+++ b/Source/CursesDialog/form/fty_ipv4.c
@@ -0,0 +1,84 @@
+
+/*
+ * THIS CODE IS SPECIFICALLY EXEMPTED FROM THE NCURSES PACKAGE COPYRIGHT.
+ * You may freely copy it for use as a template for your own field types.
+ * If you develop a field type that might be of general use, please send
+ * it back to the ncurses maintainers for inclusion in the next version.
+ */
+/***************************************************************************
+*                                                                          *
+*  Author : Per Foreby, perf@efd.lth.se                                    *
+*                                                                          *
+***************************************************************************/
+
+#include "form.priv.h"
+
+MODULE_ID("$Id$")
+
+/*---------------------------------------------------------------------------
+|   Facility      :  libnform  
+|   Function      :  static bool Check_IPV4_Field(
+|                                      FIELD * field,
+|                                      const void * argp)
+|   
+|   Description   :  Validate buffer content to be a valid IP number (Ver. 4)
+|
+|   Return Values :  TRUE  - field is valid
+|                    FALSE - field is invalid
++--------------------------------------------------------------------------*/
+static bool Check_IPV4_Field(FIELD * field, const void * argp)
+{
+  char *bp = field_buffer(field,0);
+  int num = 0, len;
+  unsigned int d1, d2, d3, d4;
+
+  argp=0; /* Silence unused parameter warning.  */
+
+  if(isdigit((int)(*bp)))              /* Must start with digit */
+    {
+      num = sscanf(bp, "%u.%u.%u.%u%n", &d1, &d2, &d3, &d4, &len);
+      if (num == 4)
+        {
+          bp += len;            /* Make bp point to what sscanf() left */
+          while (*bp && isspace((int)(*bp)))
+            bp++;               /* Allow trailing whitespace */
+        }
+    }
+  return ((num != 4 || *bp || d1 > 255 || d2 > 255
+                           || d3 > 255 || d4 > 255) ? FALSE : TRUE);
+}
+
+/*---------------------------------------------------------------------------
+|   Facility      :  libnform  
+|   Function      :  static bool Check_IPV4_Character(
+|                                      int c, 
+|                                      const void *argp )
+|   
+|   Description   :  Check a character for unsigned type or period.
+|
+|   Return Values :  TRUE  - character is valid
+|                    FALSE - character is invalid
++--------------------------------------------------------------------------*/
+static bool Check_IPV4_Character(int c, const void * argp)
+{
+  argp=0; /* Silence unused parameter warning.  */
+  return ((isdigit(c) || (c=='.')) ? TRUE : FALSE);
+}
+
+static FIELDTYPE typeIPV4 = {
+  _RESIDENT,
+  1,                           /* this is mutable, so we can't be const */
+  (FIELDTYPE *)0,
+  (FIELDTYPE *)0,
+  NULL,
+  NULL,
+  NULL,
+  Check_IPV4_Field,
+  Check_IPV4_Character,
+  NULL,
+  NULL
+};
+
+FIELDTYPE* TYPE_IPV4 = &typeIPV4;
+
+/* fty_ipv4.c ends here */