1 files changed, 91 insertions, 0 deletions
diff --git a/pgm4/inet_streams.d/inet_wstream.c b/pgm4/inet_streams.d/inet_wstream.c
new file mode 100644
index 0000000..8dcd284
--- /dev/null
+++ b/pgm4/inet_streams.d/inet_wstream.c
@@ -0,0 +1,91 @@
+/************************************************************************\
+* 			  INET_WSTREAM.C       			         *
+* Test of TCP/IP. Invoke as                                              *
+*             inet_wstream hostname portnumber                           *
+* in order to send a fragment of an obnoxious Dijkstra quote to a        *
+* process assumed to be reading from a stream at the specified           *
+* address.                                                               *
+* 								         *
+* Phil Kearns							         *
+* April 11, 1987						         *
+* 								         *
+* Modified February 2009 to use getaddrinfo()                            *
+\************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netdb.h>
+
+char msg[] = { "false pearls before real swine" };
+
+int main(argc, argv)
+int argc;
+char **argv;
+{
+  int sock, left, num, put, ecode;
+  struct sockaddr_in *server;
+  struct addrinfo hints, *addrlist;
+
+  if (argc != 3) {
+    fprintf(stderr,"inet_wstream:usage is inet_wstream host port\n");
+    exit(1);
+  }
+
+
+
+/*
+   Want a sockaddr_in containing the ip address for the system
+   specified in argv[1] and the port specified in argv[2].
+*/
+
+  memset( &hints, 0, sizeof(hints));
+  hints.ai_family = AF_INET; hints.ai_socktype = SOCK_STREAM;
+  hints.ai_flags = AI_NUMERICSERV; hints.ai_protocol = 0;
+  hints.ai_canonname = NULL; hints.ai_addr = NULL;
+  hints.ai_next = NULL;
+
+  ecode = getaddrinfo(argv[1], argv[2], &hints, &addrlist);
+  if (ecode != 0) {
+    fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(ecode));
+    exit(1);
+  }
+
+  server = (struct sockaddr_in *) addrlist->ai_addr;
+
+/*
+   Create the socket.
+*/
+  if ( (sock = socket( addrlist->ai_family, addrlist->ai_socktype, 0 )) < 0 ) {
+    perror("inet_wstream:socket");
+    exit(1);
+  }
+
+/*
+   Connect to data socket on the peer at the specified Internet
+   address.
+*/
+  if ( connect(sock, (struct sockaddr *)server, sizeof(struct sockaddr_in)) < 0) {
+    perror("inet_wstream:connect");
+    exit(1);
+  }
+
+/*
+   Write the quote and terminate. This will close the connection on
+   this end, so eventually an "EOF" will be detected remotely.
+*/
+  left = sizeof(msg); put=0;
+  while (left > 0){
+    if((num = write(sock, msg+put, left)) < 0) {
+      perror("inet_wstream:write");
+      exit(1);
+    }
+    else left -= num;
+    put += num;
+  }
+  exit(0);
+}