diff options
| -rw-r--r-- | lib/security.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/lib/security.c b/lib/security.c index e9f8ea02f..c79128abd 100644 --- a/lib/security.c +++ b/lib/security.c @@ -180,11 +180,13 @@ static CURLcode read_data(struct connectdata *conn, } static size_t -buffer_read(struct krb4buffer *buf, void *data, size_t len) +buffer_read(struct krb4buffer *buf, const char *data, size_t len) { - if(buf->size - buf->index < len) - len = buf->size - buf->index; - memcpy(data, (char*)buf->data + buf->index, len); + size_t buf_capacity = buf->size - buf->index; + DEBUGASSERT(buf->size > buf->index); + if(buf_capacity < len) + len = buf_capacity; + memcpy(buf, data, len); buf->index += len; return len; } |