hunt version 1993-07-17

1 files changed, 125 insertions, 0 deletions

diff --git a/hunt/huntd/get_names.c b/hunt/huntd/get_names.c
new file mode 100644
index 00000000..e8a101a0
--- /dev/null
+++ b/hunt/huntd/get_names.c
@@ -0,0 +1,125 @@
+/*
+ * Copyright (c) 1983 Regents of the University of California.
+ * All rights reserved.  The Berkeley software License Agreement
+ * specifies the terms and conditions for redistribution.
+ */
+
+#include "bsd.h"
+
+#if	defined(TALK_43) || defined(TALK_42)
+
+# include	<stdio.h>
+# include	<string.h>
+# include	"talk_ctl.h"
+# include	<sys/param.h>
+# include	<netdb.h>
+
+extern	CTL_MSG	msg;
+
+struct	hostent	*gethostbyname();
+struct	servent	*getservbyname();
+
+static	char	hostname[MAXHOSTNAMELEN];
+char		*my_machine_name;
+
+/*
+ * Determine the local user and machine
+ */
+get_local_name(my_name)
+	char	*my_name;
+{
+	struct	hostent	*hp;
+	struct	servent	*sp;
+
+	/* Load these useful values into the standard message header */
+	msg.id_num = 0;
+	(void) strncpy(msg.l_name, my_name, NAME_SIZE);
+	msg.l_name[NAME_SIZE - 1] = '\0';
+	msg.r_tty[0] = '\0';
+	msg.pid = getpid();
+# ifdef TALK_43
+	msg.vers = TALK_VERSION;
+	msg.addr.sa_family = htons(AF_INET);
+	msg.ctl_addr.sa_family = htons(AF_INET);
+# else
+	msg.addr.sin_family = htons(AF_INET);
+	msg.ctl_addr.sin_family = htons(AF_INET);
+# endif
+
+	(void) gethostname(hostname, sizeof (hostname));
+	my_machine_name = hostname;
+	/* look up the address of the local host */
+	hp = gethostbyname(my_machine_name);
+	if (hp == (struct hostent *) 0) {
+		printf("This machine doesn't exist. Boy, am I confused!\n");
+		exit(-1);
+	}
+	memcpy(&my_machine_addr, hp->h_addr, hp->h_length);
+	/* find the daemon portal */
+# ifdef TALK_43
+	sp = getservbyname("ntalk", "udp");
+# else
+	sp = getservbyname("talk", "udp");
+# endif
+	if (sp == 0) {
+# ifdef LOG
+		syslog(LOG_ERR, "This machine doesn't support talk");
+# else
+		perror("This machine doesn't support talk");
+# endif
+		exit(-1);
+	}
+	daemon_port = sp->s_port;
+}
+
+/*
+ * Determine the remote user and machine
+ */
+get_remote_name(his_address)
+	char	*his_address;
+{
+	char		*his_name;
+	char		*his_machine_name;
+	char		*ptr;
+	struct	hostent	*hp;
+
+
+	/* check for, and strip out, the machine name of the target */
+	for (ptr = his_address; *ptr != '\0' && *ptr != '@' && *ptr != ':'
+					&& *ptr != '!' && *ptr != '.'; ptr++)
+		continue;
+	if (*ptr == '\0') {
+		/* this is a local to local talk */
+		his_name = his_address;
+		his_machine_name = my_machine_name;
+	} else {
+		if (*ptr == '@') {
+			/* user@host */
+			his_name = his_address;
+			his_machine_name = ptr + 1;
+		} else {
+			/* host.user or host!user or host:user */
+			his_name = ptr + 1;
+			his_machine_name = his_address;
+		}
+		*ptr = '\0';
+	}
+	/* Load these useful values into the standard message header */
+	(void) strncpy(msg.r_name, his_name, NAME_SIZE);
+	msg.r_name[NAME_SIZE - 1] = '\0';
+
+	/* if he is on the same machine, then simply copy */
+	if (bcmp((char *) &his_machine_name, (char *) &my_machine_name,
+						sizeof(his_machine_name)) == 0)
+		memcpy(&his_machine_addr, &my_machine_addr,
+						sizeof(his_machine_name));
+	else {
+		/* look up the address of the recipient's machine */
+		hp = gethostbyname(his_machine_name);
+		if (hp == (struct hostent *) 0)
+			return 0;			/* unknown host */
+		memcpy(&his_machine_addr, hp->h_addr, hp->h_length);
+	}
+	return 1;
+}
+#endif