Fix coverity warnings in VOM and VAPI

Change-Id: I0db55e079f9b1835668c8efe69e6e6f7f8437b00
Signed-off-by: Neale Ranns <neale.ranns@cisco.com>

5 files changed, 15 insertions, 11 deletions

diff --git a/src/vpp-api/vapi/vapi.c b/src/vpp-api/vapi/vapi.c
index 25c0b3be1d3..658fd7e584c 100644
--- a/src/vpp-api/vapi/vapi.c
+++ b/src/vpp-api/vapi/vapi.c
@@ -238,7 +238,7 @@ vapi_lookup_vapi_msg_id_t (vapi_ctx_t ctx, u16 vl_msg_id)
     {
       return ctx->vl_msg_id_to_vapi_msg_t[vl_msg_id];
     }
-  return ~0;
+  return INVALID_MSG_ID;
 }
 
 vapi_error_e
@@ -337,7 +337,7 @@ vapi_connect (vapi_ctx_t ctx, const char *name,
       u8 scratch[m->name_with_crc_len + 1];
       memcpy (scratch, m->name_with_crc, m->name_with_crc_len + 1);
       u32 id = vl_api_get_msg_index (scratch);
-      if (~0 != id)
+      if (INVALID_MSG_ID != id)
 	{
 	  if (id > UINT16_MAX)
 	    {
@@ -716,7 +716,7 @@ vapi_dispatch_one (vapi_ctx_t ctx)
       vapi_msg_free (ctx, msg);
       return VAPI_EINVAL;
     }
-  if (~0 == (unsigned) ctx->vl_msg_id_to_vapi_msg_t[vpp_id])
+  if (INVALID_MSG_ID == (unsigned) ctx->vl_msg_id_to_vapi_msg_t[vpp_id])
     {
       VAPI_ERR ("Unknown msg ID received, id `%u' marked as not supported",
 		(unsigned) vpp_id);
diff --git a/src/vpp-api/vapi/vapi.hpp b/src/vpp-api/vapi/vapi.hpp
index e0fd2e5051c..893851a0dbb 100644
--- a/src/vpp-api/vapi/vapi.hpp
+++ b/src/vpp-api/vapi/vapi.hpp
@@ -105,7 +105,8 @@ public:
 
 private:
   Connection &con;
-  Common_req (Connection &con) : con (con), response_state{RESPONSE_NOT_READY}
+  Common_req (Connection &con)
+      : con (con), context{0}, response_state{RESPONSE_NOT_READY}
   {
   }
 
@@ -577,13 +578,14 @@ private:
 
   static void set_msg_id (vapi_msg_id_t id)
   {
-    assert ((~0 == *msg_id_holder ()) || (id == *msg_id_holder ()));
+    assert ((INVALID_MSG_ID == *msg_id_holder ()) ||
+            (id == *msg_id_holder ()));
     *msg_id_holder () = id;
   }
 
   static vapi_msg_id_t *msg_id_holder ()
   {
-    static vapi_msg_id_t my_id{~0};
+    static vapi_msg_id_t my_id{INVALID_MSG_ID};
     return &my_id;
   }
 
diff --git a/src/vpp-api/vapi/vapi_c_gen.py b/src/vpp-api/vapi/vapi_c_gen.py
index d7a7272adff..4b7da6a1f15 100755
--- a/src/vpp-api/vapi/vapi_c_gen.py
+++ b/src/vpp-api/vapi/vapi_c_gen.py
@@ -504,11 +504,11 @@ class CMessage (Message):
             '    offsetof(%s, context),' % self.header.get_c_name()
             if has_context else '    0,',
             ('    offsetof(%s, payload),' % self.get_c_name())
-            if self.has_payload() else '    ~0,',
+            if self.has_payload() else '    INVALID_MSG_ID,',
             '    sizeof(%s),' % self.get_c_name(),
             '    (generic_swap_fn_t)%s,' % self.get_swap_to_be_func_name(),
             '    (generic_swap_fn_t)%s,' % self.get_swap_to_host_func_name(),
-            '    ~0,',
+            '    INVALID_MSG_ID,',
             '  };',
             '',
             '  %s = vapi_register_msg(&%s);' %
diff --git a/src/vpp-api/vapi/vapi_common.h b/src/vpp-api/vapi/vapi_common.h
index ce64469d02c..764a0b71f50 100644
--- a/src/vpp-api/vapi/vapi_common.h
+++ b/src/vpp-api/vapi/vapi_common.h
@@ -52,7 +52,9 @@ typedef enum
   VAPI_WAIT_FOR_READ_WRITE,  /**< wait until a read or write can be done */
 } vapi_wait_mode_e;
 
-typedef int vapi_msg_id_t;
+typedef unsigned int vapi_msg_id_t;
+
+#define INVALID_MSG_ID ((vapi_msg_id_t)(~0))
 
 #ifdef __cplusplus
 }
diff --git a/src/vpp-api/vapi/vapi_internal.h b/src/vpp-api/vapi/vapi_internal.h
index 2c51c673d9e..e9a9726d86e 100644
--- a/src/vpp-api/vapi/vapi_internal.h
+++ b/src/vpp-api/vapi/vapi_internal.h
@@ -90,8 +90,8 @@ typedef struct
   const char *name_with_crc;
   size_t name_with_crc_len;
   bool has_context;
-  int context_offset;
-  int payload_offset;
+  unsigned int context_offset;
+  unsigned int payload_offset;
   size_t size;
   generic_swap_fn_t swap_to_be;
   generic_swap_fn_t swap_to_host;