diff --git a/cde/lib/tt/bin/ttdbserverd/dm_server.C b/cde/lib/tt/bin/ttdbserverd/dm_server.C
index 84fb23233..d45593ec8 100644
--- a/cde/lib/tt/bin/ttdbserverd/dm_server.C
+++ b/cde/lib/tt/bin/ttdbserverd/dm_server.C
@@ -1561,7 +1561,10 @@ _tt_transaction_1(_Tt_transaction_args* args, SVCXPRT * /* transp */)
 			return _tt_transaction_error(fd);
 		}
 		/* Turn on close-on-exec */
-		fcntl(fd, F_SETFD, 1);
+		if(fcntl(fd, F_SETFD, 1) == -1) {
+			res.iserrno = DM_WRITE_FAILED;
+			return _tt_transaction_error(fd);
+		}
 
 		/* reset to beginning of file */
 		off_t offset;
diff --git a/cde/lib/tt/bin/ttsession/mp_server.C b/cde/lib/tt/bin/ttsession/mp_server.C
index c0ea10c0c..760c29b6f 100644
--- a/cde/lib/tt/bin/ttsession/mp_server.C
+++ b/cde/lib/tt/bin/ttsession/mp_server.C
@@ -251,12 +251,12 @@ int main(int argc, char **argv)
 				_tt_syslog( errstr, LOG_ERR, "%m" );
 				exit(1);
 			}
-			cargv[i] = '\0';
+			cargv[i] = NULL;
 
 			// if no program given then use $SHELL
 			if (! cargv[0]) {
 				cargv[0] = getenv("SHELL");
-				cargv[1] = '\0';
+				cargv[1] = NULL;
 			}
 			cmd = cargv[0];
 			background_mode = 0;
diff --git a/cde/lib/tt/lib/api/c/api_pattern.C b/cde/lib/tt/lib/api/c/api_pattern.C
index 88d7be158..a53c3d481 100644
--- a/cde/lib/tt/lib/api/c/api_pattern.C
+++ b/cde/lib/tt/lib/api/c/api_pattern.C
@@ -1540,7 +1540,11 @@ _tt_session_types_load(const char *filename)
 	if (-1==(fd=open(filename, O_RDONLY))) {
 		return TT_ERR_FILE;
 	}
-	fcntl(fd, F_SETFD, 1);	/* Close on exec */
+	/* Close on exec */
+	if (-1==fcntl(fd, F_SETFD, 1)) {
+		close(fd);
+		return TT_ERR_FILE;
+	}
 
 	if (-1==fstat(fd, &typefile_stat)) {
 		close(fd);
diff --git a/cde/lib/tt/lib/mp/mp_auth.C b/cde/lib/tt/lib/mp/mp_auth.C
index b44369d39..b847ba4f0 100644
--- a/cde/lib/tt/lib/mp/mp_auth.C
+++ b/cde/lib/tt/lib/mp/mp_auth.C
@@ -173,6 +173,7 @@ read_auth_entries(FILE *fp, _tt_AuthFileEntryList **headp)
 	    _tt_syslog(0, LOG_ERR,
 		       "%s:  memory error.  New entry not written.\n",
                        funcname);
+	    free(entry);
 	    return TT_ERR_NOMEM;
 	}
 
diff --git a/cde/lib/tt/lib/mp/mp_stream_socket.C b/cde/lib/tt/lib/mp/mp_stream_socket.C
index 8d08a0de9..c0cda276f 100644
--- a/cde/lib/tt/lib/mp/mp_stream_socket.C
+++ b/cde/lib/tt/lib/mp/mp_stream_socket.C
@@ -88,6 +88,8 @@ _Tt_stream_socket()
 	_sock = -1;
 	_hostaddr.sin_port = 0;
 	_hostaddr.sin_family = 0;
+        memset(&_hostaddr.sin_addr, 0, sizeof(struct in_addr));
+
 }
 
 _Tt_stream_socket::
@@ -557,7 +559,7 @@ recv(char *msg, int msglen)
 {
 	int rval;
 	
-	if (_msgsock == -1 && accept() == -1) {
+	if (_msgsock == -1 || accept() == -1) {
 		return(-1);
 	}
 	
diff --git a/cde/lib/tt/lib/tttk/tttk.C b/cde/lib/tt/lib/tttk/tttk.C
index 1f0c2b8fe..970c9fcaa 100644
--- a/cde/lib/tt/lib/tttk/tttk.C
+++ b/cde/lib/tt/lib/tttk/tttk.C
@@ -271,6 +271,7 @@ ttdt_session_join(
 	if (join) {
 		status = tt_session_join( sessid );
 		if (status != TT_OK) {
+			free(pats);
 			return (Tt_pattern *)tt_error_pointer( status );
 		}
 	}
diff --git a/cde/lib/tt/lib/util/tt_audit.C b/cde/lib/tt/lib/util/tt_audit.C
index 426ba42eb..a16c41fcd 100644
--- a/cde/lib/tt/lib/util/tt_audit.C
+++ b/cde/lib/tt/lib/util/tt_audit.C
@@ -533,6 +533,7 @@ entry(const char *argskey, _Tt_entry_pt func, ...)
 					_tt_syslog(0, LOG_ERR,
 						   "_Tt_audit::entry(): ARG_INTEGER: func==%s",
 						   _tt_enumname(func));
+					va_end(ap);
 					return TT_ERR_INTERNAL;
 				}
 			} break;
diff --git a/cde/lib/tt/lib/util/tt_log.C b/cde/lib/tt/lib/util/tt_log.C
index 81c2d4c52..58a49380a 100644
--- a/cde/lib/tt/lib/util/tt_log.C
+++ b/cde/lib/tt/lib/util/tt_log.C
@@ -76,7 +76,10 @@ _tt_log_error(int errno, int line, char *file, char *msg)
 	if (fl == (FILE *)0) {
 		return;
 	}
-	fcntl(fileno(fl), F_SETFD, 1);	/* Close on exec */
+	/* Close on exec */
+	if(fcntl(fileno(fl), F_SETFD, 1) == -1) {
+		return;
+	}
 
 	time(&clock);
 	timestamp = _XCtime(&clock, ctime_buf);
diff --git a/cde/lib/tt/lib/util/tt_trace.h b/cde/lib/tt/lib/util/tt_trace.h
index 2a049e95b..084cb4127 100644
--- a/cde/lib/tt/lib/util/tt_trace.h
+++ b/cde/lib/tt/lib/util/tt_trace.h
@@ -102,7 +102,7 @@ class _Tt_trace_stream;
 class _Tt_trace : public _Tt_allocated {
     public:
 	// suppresses "used but not set" warnings
-				_Tt_trace() {};
+				_Tt_trace() : _funcname(TT_X_SESSION), _tracing(0) {};
 	// Initializes tracing (if necessary)
 	static int		init(
 					int even_if_no_envariable = 0
diff --git a/cde/lib/tt/mini_isam/isfcb.c b/cde/lib/tt/mini_isam/isfcb.c
index 8d58957ab..cf810b4e9 100644
--- a/cde/lib/tt/mini_isam/isfcb.c
+++ b/cde/lib/tt/mini_isam/isfcb.c
@@ -649,6 +649,11 @@ _create_datfile(isfname)
 	fd = open (namebuf, O_CREAT | O_EXCL | O_RDWR, 0666);
 	if (fd > -1) {
 		fcntl(fd, F_SETFD, 1);	/* Close on exec */
+		/* Close on exec */
+		if(fcntl(fd, F_SETFD, 1) == -1) {
+			close(fd);
+			return(-1);
+		}
 	}
 	return (fd);
 }
@@ -671,7 +676,11 @@ _create_indfile(isfname)
 
 	fd = open (namebuf, O_CREAT | O_EXCL | O_RDWR, 0666);
 	if (fd > -1) {
-		fcntl(fd, F_SETFD, 1);	/* Close on exec */
+		/* Close on exec */
+		if(fcntl(fd, F_SETFD, 1) == -1) {
+			close(fd);
+			return(-1);
+		}
 	}
 	return (fd);
 }
@@ -694,7 +703,11 @@ _create_varfile(isfname)
 
 	fd = open (namebuf, O_CREAT | O_EXCL | O_RDWR, 0666);
 	if (fd > -1) {
-		fcntl(fd, F_SETFD, 1);	/* Close on exec */
+		/* Close on exec */
+		if(fcntl(fd, F_SETFD, 1) == -1) {
+			close(fd);
+			return(-1);
+		}
 	}
 	return (fd);
 }
@@ -774,14 +787,22 @@ _open_datfile(isfname, rdonly)
 
     if ((ret = open (namebuf, O_RDWR)) != -1) {
 	*rdonly = FALSE;
-	fcntl(ret, F_SETFD, 1);		/* Close on exec */
-	return (ret);
+        /* Close on exec */
+        if(fcntl(ret, F_SETFD, 1) == -1) {
+            close(ret);
+            ret = -1;
+        }
+        return (ret);
     }
 
     *rdonly = TRUE;
     ret = open (namebuf, O_RDONLY);
     if (ret > -1) {
-	    fcntl(ret, F_SETFD, 1);	/* Close on exec */
+        /* Close on exec */
+        if(fcntl(ret, F_SETFD, 1) == -1) {
+            close(ret);
+            return(-1);
+        }
     }
     return (ret);
 }
@@ -805,7 +826,11 @@ _open_indfile(isfname, rdonly)
 
 	fd = open (namebuf, (rdonly==TRUE)?O_RDONLY:O_RDWR);
 	if (fd > -1) {
-	    fcntl(fd, F_SETFD, 1);	/* Close on exec */
+		/* Close on exec */
+		if(fcntl(fd, F_SETFD, 1) == -1) {
+			close(fd);
+			return(-1);
+		}
 	}
 	return (fd);
 }
@@ -829,7 +854,11 @@ _open_varfile(isfname, rdonly)
 
 	fd = open (namebuf, (rdonly==TRUE)?O_RDONLY:O_RDWR);
 	if (fd > -1) {
-		fcntl(fd, F_SETFD, 1);	/* Close on exec */
+		/* Close on exec */
+		if(fcntl(fd, F_SETFD, 1) == -1) {
+			close(fd);
+			return(-1);
+		}
 	}
 	return (fd);
 }
@@ -882,7 +911,11 @@ _open2_indfile(fcb)
 
     fcb->indfd =  open(namebuf, openmode, buf.st_mode);
     if (fcb->indfd > -1) {
-	    fcntl(fcb->indfd, F_SETFD, 1);	/* Close on exec */
+        /* Close on exec */
+        if(fcntl(fcb->indfd, F_SETFD, 1) == -1) {
+            close(fcb->indfd);
+            fcb->indfd = -1;
+        }
     }
 
     if(fcb->indfd == -1 && (openmode & O_CREAT)) {
diff --git a/cde/lib/tt/mini_isam/isrepair.c b/cde/lib/tt/mini_isam/isrepair.c
index e1cc4ed90..531a47590 100644
--- a/cde/lib/tt/mini_isam/isrepair.c
+++ b/cde/lib/tt/mini_isam/isrepair.c
@@ -112,21 +112,30 @@ isrepair(isfname, verbose)
   _makedat_isfname(namebuf);
   datfd = open(namebuf, O_RDONLY);
   if (datfd > -1) {
-	  fcntl(datfd, F_SETFD, 1);
+    if(fcntl(datfd, F_SETFD, 1) == -1) {
+      close(datfd);
+      datfd = -1;
+    }
   }
 
   (void)strcpy(namebuf, isfname);
   _makeind_isfname(namebuf);
   indfd = open(namebuf, O_RDONLY);
   if (indfd > -1) {
-	  fcntl(indfd, F_SETFD, 1);
+    if(fcntl(indfd, F_SETFD, 1) == -1) {
+      close(indfd);
+      indfd = -1;
+    }
   }
 
   (void)strcpy(namebuf, isfname);
   _makevar_isfname(namebuf);
   varfd = open(namebuf, O_RDONLY);
   if (varfd > -1) {
-	  fcntl(varfd, F_SETFD, 1);
+    if(fcntl(varfd, F_SETFD, 1) == -1) {
+       close(varfd);
+       varfd = -1;         
+    }
   }
 
   (void)print("Reading control page from %s.rec file...\n",
diff --git a/cde/lib/tt/slib/mp_rpc_server.C b/cde/lib/tt/slib/mp_rpc_server.C
index 4df567d44..c134bc5e4 100644
--- a/cde/lib/tt/slib/mp_rpc_server.C
+++ b/cde/lib/tt/slib/mp_rpc_server.C
@@ -391,7 +391,10 @@ gettransient(int proto, int vers, int *sockp)
         addr.sin_port = htons(0);
         addr.sin_family = AF_INET;
 	len = sizeof(addr);
-	bind(s, (sockaddr *)&addr, len);
+	if(bind(s, (sockaddr *)&addr, len) == -1) {
+		_tt_syslog(0, LOG_ERR, "bind(): %m");
+		return(0);
+	}
 #if defined (_AIX) && (OSMAJORVERSION==4) && (OSMINORVERSION==2)
 	if (getsockname(s, (sockaddr *)&addr, (size_t *)&len) < 0) {
 #else