Segmentation fault in netstat after r354373 -> r354373 update

[Phil Shafer]

+++ b/libxo/libxo.c
@@ -8104,6 +8104,8 @@ xo_parse_args (int argc, char **argv)
      cp = strrchr(xo_program, '/');
      if (cp)
  	xo_program = ++cp;
+    else
+	cp = argv[0];		/* Reset to front of string */

      /* GNU tools add an annoying ".test" as the program extension; 
remove it */
      size_t len = strlen(xo_program);

On 7 Nov 2019, at 10:08, Arnaud Ysmal wrote:

> Hi,
>
> I just got the same issue, it happens when argv[0] does not contain a 
> / (calling uptime segfault but calling /usr/bin/uptime works).
>
> In xo_parse_args there is no check whether cp is NULL before calling 
> xo_streq.
>
> I fixed it by changing this line:
> -       cp = &cp[len + 1 - sizeof(gnu_ext)];
> +       cp = (char *)(uintptr_t)(const char *)(&xo_program[len + 1 - 
> sizeof(gnu_ext)]);
>
> Arnaud Ysmal