From 0e5b2871ca6456b01d4bf037a6e68badf1ff1a41 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Henryk=20Pl=C3=B6tz?= Date: Fri, 3 Oct 2014 19:58:52 +0200 Subject: Initial commit of djbdns-1.05.tar.gz Source was http://cr.yp.to/djbdns/djbdns-1.05.tar.gz, SHA1 2efdb3a039d0c548f40936aa9cb30829e0ce8c3d --- okclient.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 okclient.c (limited to 'okclient.c') diff --git a/okclient.c b/okclient.c new file mode 100644 index 0000000..a648c02 --- /dev/null +++ b/okclient.c @@ -0,0 +1,26 @@ +#include +#include +#include "str.h" +#include "ip4.h" +#include "okclient.h" + +static char fn[3 + IP4_FMT]; + +int okclient(char ip[4]) +{ + struct stat st; + int i; + + fn[0] = 'i'; + fn[1] = 'p'; + fn[2] = '/'; + fn[3 + ip4_fmt(fn + 3,ip)] = 0; + + for (;;) { + if (stat(fn,&st) == 0) return 1; + /* treat temporary error as rejection */ + i = str_rchr(fn,'.'); + if (!fn[i]) return 0; + fn[i] = 0; + } +} -- cgit v1.2.3