Initial commit of files

src/libnet/tcp_accept.c

@@ -0,0 +1,46 @@
+//
+// TCP Accept
+//
+
+#include "netlib.h"
+#include "strlib.h"
+
+int tcp_accept( int sock, struct sockaddr_storage *sa )
+{
+  /* storage? */
+  struct sockaddr_storage ss;
+  if ( !sa )
+    sa = &ss;
+  
+  /* tcp request */
+  socklen_t len = sizeof(struct sockaddr_storage);
+  
+  /* accept the incoming connection */
+  int cs = accept(sock, (struct sockaddr *)sa, &len );
+  
+  /* check for errors. if any, ignore new connection */
+  if (cs < 0 )
+  {
+    log_error("tcp_accept");
+    return -1;
+  }
+  
+  /* turn off nagle, writes are shipped immediately */
+  int flag = 1;
+  setsockopt( cs,      /* socket affected */
+              IPPROTO_TCP,     /* set option at TCP level */
+              TCP_NODELAY,     /* name of option */
+              (char *) &flag,  /* the cast is historical cruft */
+              sizeof(int));    /* length of option value */
+  
+  /* log new client */
+  if ( cs > 0 )
+  {
+    char szBuf[256];
+    ip_host2name( szBuf, sizeof(szBuf), sa );
+    strlcat( szBuf, " client connected", sizeof(szBuf) );
+    log_write( szBuf );
+  }
+  
+  return cs;
+}