BSD 4_1c_2 development

Work on file usr/src/new/courier/lib/foo

Synthesized-from: CSRG/cd1/4.1c.2

diff --git a/usr/src/new/courier/lib/foo b/usr/src/new/courier/lib/foo
new file mode 100644 (file)
index 0000000..6f824a2
--- /dev/null
+++ b/usr/src/new/courier/lib/foo
@@ -0,0 +1,67 @@
+
+static
+CourierActivate(program_name, host)
+       String program_name, host;
+{
+       struct hostent *hp;
+       struct servent *srvp;
+       int f;
+       struct sockaddr_in sin;
+       Unspecified buf[50];
+       Cardinal n;
+       char c;
+
+       hp = gethostbyname(host);
+       if (hp == 0) {
+               fprintf(stderr, "%s: unknown host\n", host);
+               return (-1);
+       }
+       srvp = getservbyname("courier", "tcp");
+       if (srvp == 0) {
+               fprintf(stderr, "tcp/courier: unknown service\n");
+               return (-1);
+       }
+       f = socket(AF_INET, SOCK_STREAM, 0, 0);
+       if (f < 0) {
+               if (errno != EMFILE)
+                       perror("socket");
+               return (-1);
+       }
+       sin.sin_family = AF_INET;
+       sin.sin_port = 0;
+       sin.sin_addr.s_addr = 0;
+       if (bind(f, (caddr_t)&sin, sizeof (sin), 0) < 0) {
+               perror("bind");
+               goto bad;
+       }
+       sin.sin_family = hp->h_addrtype;
+       sin.sin_addr = *(struct in_addr *) hp->h_addr;
+       sin.sin_port = srvp->s_port;
+       if (connect(f, (caddr_t)&sin, sizeof(sin), 0) < 0) {
+               perror(hp->h_name);
+               goto bad;
+       }
+#if DEBUG
+       if (CourierClientDebuggingFlag)
+               fprintf(stderr, "[CourierActivate: connected to %s]\n", hp->h_name);
+#endif
+       n = PackString(&program_name, buf, 1);
+       write(f, buf, n*sizeof(Unspecified));
+       if (read(f, &c, 1) != 1) {
+               perror(host);
+               goto bad;
+       }
+       if (c != 0) {
+               do write(fileno(stderr), &c, 1);
+               while (read(f, &c, 1) == 1 && c != 0);
+               goto bad;
+       }
+#if DEBUG
+       if (CourierClientDebuggingFlag)
+               fprintf(stderr, "[CourierActivate: running %s]\n", program_name);
+#endif
+       return (f);
+bad:
+       close(f);
+       return (-1);
+}