Document the .options file usage.

[apps/agl-service-can-low-level.git] / pb_encode.c

diff --git a/pb_encode.c b/pb_encode.c
index 7acee36..0e048ac 100644 (file)
--- a/pb_encode.c
+++ b/pb_encode.c
@@ -198,9 +198,16 @@ bool checkreturn encode_static_field(pb_ostream_t *stream, const pb_field_t *fie
 bool checkreturn encode_callback_field(pb_ostream_t *stream, const pb_field_t *field, const void *pData)
 {
     const pb_callback_t *callback = (const pb_callback_t*)pData;
+    
+#ifdef PB_OLD_CALLBACK_STYLE
+    const void *arg = callback->arg;
+#else
+    void * const *arg = &(callback->arg);
+#endif    
+    
     if (callback->funcs.encode != NULL)
     {
-        if (!callback->funcs.encode(stream, field, callback->arg))
+        if (!callback->funcs.encode(stream, field, arg))
             PB_RETURN_ERROR(stream, "callback error");
     }
     return true;
@@ -454,8 +461,16 @@ bool checkreturn pb_enc_bytes(pb_ostream_t *stream, const pb_field_t *field, con
 
 bool checkreturn pb_enc_string(pb_ostream_t *stream, const pb_field_t *field, const void *src)
 {
-    UNUSED(field);
-    return pb_encode_string(stream, (const uint8_t*)src, strlen((const char*)src));
+    /* strnlen() is not always available, so just use a for-loop */
+    size_t size = 0;
+    const char *p = (const char*)src;
+    while (size < field->data_size && *p != '\0')
+    {
+        size++;
+        p++;
+    }
+
+    return pb_encode_string(stream, (const uint8_t*)src, size);
 }
 
 bool checkreturn pb_enc_submessage(pb_ostream_t *stream, const pb_field_t *field, const void *src)