upstream tag

[1ts-debian.git] / zephyr / lib / ZSendPkt.c

diff --git a/zephyr/lib/ZSendPkt.c b/zephyr/lib/ZSendPkt.c
new file mode 100644 (file)
index 0000000..c1c8b0d
--- /dev/null
+++ b/zephyr/lib/ZSendPkt.c
@@ -0,0 +1,68 @@
+/* This file is part of the Project Athena Zephyr Notification System.
+ * It contains source for the ZSendPacket function.
+ *
+ *     Created by:     Robert French
+ *
+ *     $Id: ZSendPkt.c,v 1.32 1999/01/22 23:19:24 ghudson Exp $
+ *
+ *     Copyright (c) 1987,1991 by the Massachusetts Institute of Technology.
+ *     For copying and distribution information, see the file
+ *     "mit-copyright.h". 
+ */
+
+#ifndef lint
+static char rcsid_ZSendPacket_c[] =
+    "$Zephyr: /mit/zephyr/src/lib/RCS/ZSendPacket.c,v 1.29 91/03/21 11:57:08 raeburn Exp $";
+#endif
+
+#include <internal.h>
+#include <sys/socket.h>
+
+static int wait_for_hmack();
+
+Code_t ZSendPacket(packet, len, waitforack)
+    char *packet;
+    int len;
+    int waitforack;
+{
+    Code_t retval;
+    struct sockaddr_in dest;
+    ZNotice_t notice, acknotice;
+       
+    if (!packet || len < 0)
+       return (ZERR_ILLVAL);
+
+    if (len > Z_MAXPKTLEN)
+       return (ZERR_PKTLEN);
+    
+    if (ZGetFD() < 0)
+       if ((retval = ZOpenPort((u_short *)0)) != ZERR_NONE)
+           return (retval);
+
+    dest = ZGetDestAddr();
+       
+    if (sendto(ZGetFD(), packet, len, 0, (struct sockaddr *)&dest,
+              sizeof(dest)) < 0)
+       return (errno);
+
+    if (!waitforack)
+       return (ZERR_NONE);
+
+    if ((retval = ZParseNotice(packet, len, &notice)) != ZERR_NONE)
+       return (retval);
+    
+    retval = Z_WaitForNotice (&acknotice, wait_for_hmack, &notice.z_uid,
+                             HM_TIMEOUT);
+    if (retval == ETIMEDOUT)
+      return ZERR_HMDEAD;
+    if (retval == ZERR_NONE)
+      ZFreeNotice (&acknotice);
+    return retval;
+}
+
+static int wait_for_hmack(notice, uid)
+    ZNotice_t *notice;
+    ZUnique_Id_t *uid;
+{
+    return (notice->z_kind == HMACK && ZCompareUID(&notice->z_uid, uid));
+}