From e0fc82203d677a6f1e808e9a1a46176c109d89be Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Mon, 15 Dec 2014 23:08:59 +0000
Subject:  Initial commit

---
 src/conn-tools/s6-ident-client.c | 71 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 src/conn-tools/s6-ident-client.c

(limited to 'src/conn-tools/s6-ident-client.c')

diff --git a/src/conn-tools/s6-ident-client.c b/src/conn-tools/s6-ident-client.c
new file mode 100644
index 0000000..e475870
--- /dev/null
+++ b/src/conn-tools/s6-ident-client.c
@@ -0,0 +1,71 @@
+/* ISC license. */
+
+#include <errno.h>
+#include <skalibs/uint16.h>
+#include <skalibs/uint.h>
+#include <skalibs/sgetopt.h>
+#include <skalibs/strerr2.h>
+#include <skalibs/buffer.h>
+#include <skalibs/tai.h>
+#include <skalibs/djbunix.h>
+#include <skalibs/ip46.h>
+#include <skalibs/unix-timed.h>
+#include <s6-networking/ident.h>
+
+#define USAGE "s6-ident-client [ -t timeout ] ra rp la lp"
+#define dieusage() strerr_dieusage(100, USAGE)
+
+int main (int argc, char const *const *argv)
+{
+  tain_t deadline ;
+  ip46_t ra, la ;
+  uint16 rp, lp ;
+  PROG = "s6-ident-client" ;
+  {
+    unsigned int t = 0 ;
+    subgetopt_t l = SUBGETOPT_ZERO ;
+    for (;;)
+    {
+      register int opt = subgetopt_r(argc, argv, "t:", &l) ;
+      if (opt == -1) break ;
+      switch (opt)
+      {
+        case 't' : if (!uint0_scan(l.arg, &t)) dieusage() ; break ;
+        default : dieusage() ;
+      }
+    }
+    argc -= l.ind ; argv += l.ind ;
+    if (t) tain_from_millisecs(&deadline, t) ; else deadline = tain_infinite_relative ;
+  }
+  if (argc < 4) dieusage() ;
+
+ if (!ip46_scan(argv[0], &ra))
+    strerr_dief2x(100, "invalid IP address: ", argv[0]) ;
+  if (!uint160_scan(argv[1], &rp))
+    strerr_dief2x(100, "invalid port number: ", argv[1]) ;
+  if (!ip46_scan(argv[2], &la))
+    strerr_dief2x(100, "invalid IP address: ", argv[2]) ;
+  if (!uint160_scan(argv[3], &lp))
+    strerr_dief2x(100, "invalid port number: ", argv[3]) ;
+  if (ip46_is6(&ra) != ip46_is6(&la))
+    strerr_dief1x(100, "address family mismatch") ;
+
+  tain_now_g() ;
+  tain_add_g(&deadline, &deadline) ;
+
+  {
+    char buf[BUFFER_OUTSIZE_SMALL] ;
+    register int r = s6net_ident_client_g(buf, BUFFER_OUTSIZE_SMALL, &ra, rp, &la, lp, &deadline) ;
+    if (r < 0) strerr_diefu1sys(errno == ETIMEDOUT ? 99 : 111, "s6net_ident_client") ;
+    else if (!r)
+    {
+      strerr_warnw2x("ident server replied: ", s6net_ident_error_str(errno)) ;
+      return 1 ;
+    }
+    buffer_putnoflush(buffer_1small, buf, r-1) ;
+  }
+  buffer_putnoflush(buffer_1small, "\n", 1) ;
+  if (!buffer_timed_flush_g(buffer_1small, &deadline))
+    strerr_diefu1sys(111, "write to stdout") ;
+  return 0 ;  
+}
-- 
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