ntpd: remove some code which is at best unneeded and at worst wrong

[oweals/busybox.git] / networking / interface.c

diff --git a/networking/interface.c b/networking/interface.c
index fe6b23dbc821dc90d281aca19631be0aff28c04a..b64d24a58b73d68e64d6011ab6e55e9699d5ce96 100644 (file)
--- a/networking/interface.c
+++ b/networking/interface.c
@@ -1242,10 +1242,8 @@ int FAST_FUNC in_ib(const char *bufp, struct sockaddr *sap)
                c = *bufp++;
                if (isdigit(c))
                        val = c - '0';
-               else if (c >= 'a' && c <= 'f')
-                       val = c - 'a' + 10;
-               else if (c >= 'A' && c <= 'F')
-                       val = c - 'A' + 10;
+               else if ((c|0x20) >= 'a' && (c|0x20) <= 'f')
+                       val = (c|0x20) - ('a' - 10);
                else {
                        errno = EINVAL;
                        return -1;
@@ -1254,17 +1252,15 @@ int FAST_FUNC in_ib(const char *bufp, struct sockaddr *sap)
                c = *bufp;
                if (isdigit(c))
                        val |= c - '0';
-               else if (c >= 'a' && c <= 'f')
-                       val |= c - 'a' + 10;
-               else if (c >= 'A' && c <= 'F')
-                       val |= c - 'A' + 10;
-               else if (c == ':' || c == 0)
+               else if ((c|0x20) >= 'a' && (c|0x20) <= 'f')
+                       val |= (c|0x20) - ('a' - 10);
+               else if (c == ':' || c == '\0')
                        val >>= 4;
                else {
                        errno = EINVAL;
                        return -1;
                }
-               if (c != 0)
+               if (c != '\0')
                        bufp++;
                *ptr++ = (unsigned char) (val & 0377);
                i++;