cmdline: fix check in port list parsing

The argument ressize contains the size of the result buffer which
should be large enough to store the parsed result of a token. In
this case, it should be larger or equal to sizeof(cmdline_portlist_t)
(4 bytes), not PORTLIST_TOKEN_SIZE which is the max size of the token
string.

This is not a critical, it fixes cases where the total length of the
parsed instruction is greater than the maximum.

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>

diff --git a/lib/librte_cmdline/cmdline_parse_portlist.c b/lib/librte_cmdline/cmdline_parse_portlist.c
index 834f2e6..fc6c14e 100644 (file)
--- a/lib/librte_cmdline/cmdline_parse_portlist.c
+++ b/lib/librte_cmdline/cmdline_parse_portlist.c
@@ -136,7 +136,7 @@ cmdline_parse_portlist(__attribute__((unused)) cmdline_parse_token_hdr_t *tk,
        if (!buf || ! *buf)
                return (-1);
 
-       if (res && ressize < PORTLIST_TOKEN_SIZE)
+       if (res && ressize < sizeof(cmdline_portlist_t))
                return -1;
 
        pl = res;