BUG/MEDIUM: htx: Don't return the start-line if the HTX message is empty

In the function htx_get_stline(), NULL must be returned if the HTX message
doesn't contain any element.

This patch must be backported to 1.9.

diff --git a/include/common/htx.h b/include/common/htx.h
index 9cbc9530098d8262622dce8dc441adce191eeae0..cd7db0526e48120ff023d2be448a10fb1d54e79a 100644 (file)
--- a/include/common/htx.h
+++ b/include/common/htx.h
@@ -280,7 +280,7 @@ static inline struct htx_sl *htx_get_stline(struct htx *htx)
 {
        struct htx_sl *sl = NULL;
 
-       if (htx->sl_off != -1)
+       if (htx->used && htx->sl_off != -1)
                sl = ((void *)htx->blocks + htx->sl_off);
 
        return sl;