Added contact module

contact.c

@@ -0,0 +1,61 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "contact.h"
+
+struct p_contact_t {
+    char *name;
+    char *show;
+    char *status;
+};
+
+PContact p_contact_new(const char * const name, const char * const show, 
+    const char * const status)
+{
+    PContact contact = malloc(sizeof(struct p_contact_t));
+    contact->name = strdup(name);
+
+    if (show == NULL || (strcmp(show, "") == 0))
+        contact->show = strdup("online");
+    else
+        contact->show = strdup(show);
+
+    if (status != NULL)
+        contact->status = strdup(status);
+    else
+        contact->status = NULL;
+
+    return contact;
+}
+
+void p_contact_free(PContact contact)
+{
+    free(contact->name);
+
+    if (contact->show != NULL) {
+        free(contact->show);
+        contact->show = NULL;
+    }
+    if (contact->status != NULL) {
+        free(contact->status);
+        contact->status = NULL;
+    }
+
+    free(contact);
+    contact = NULL;
+}
+
+char * p_contact_name(PContact contact)
+{
+    return contact->name;
+}
+
+char * p_contact_show(PContact contact)
+{
+    return contact->show;
+}
+
+char * p_contact_status(PContact contact)
+{
+    return contact->status;
+}