zebra, isisd: cast to unsigned char for ctypes
ctype.h macros take int as arguments, but expect arguments to be in
unsigned char's range. Even though it probably works, this isn't
correct on systems that have a signed char type. Cast explicitly.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
diff --git a/zebra/rtadv.c b/zebra/rtadv.c
index 21ca6da..9a3fd26 100644
--- a/zebra/rtadv.c
+++ b/zebra/rtadv.c
@@ -1201,7 +1201,8 @@
if (argc > 1)
{
- if ((isdigit(argv[1][0])) || strncmp (argv[1], "i", 1) == 0)
+ if ((isdigit((unsigned char)argv[1][0]))
+ || strncmp (argv[1], "i", 1) == 0)
{
if ( strncmp (argv[1], "i", 1) == 0)
rp.AdvValidLifetime = UINT32_MAX;