Fix multi-leg promotions

[xboard.git] / childio.c

diff --git a/childio.c b/childio.c
index 0ea90ec..1d1f1a7 100644 (file)
--- a/childio.c
+++ b/childio.c
@@ -1,11 +1,12 @@
 /*
- * childio.c -- set up communication with child processes $Id:
- * childio.c,v 1.2 1994/11/12 19:31:41 mann Exp mann $
+ * childio.c -- set up communication with child processes
  *
  * Copyright 1991 by Digital Equipment Corporation, Maynard,
- * Massachusetts.  Enhancements Copyright
- * 1992-2001,2002,2003,2004,2005,2006,2007,2008,2009 Free Software
- * Foundation, Inc.
+ * Massachusetts.
+ *
+ * Enhancements Copyright 1992-2001, 2002, 2003, 2004, 2005, 2006,
+ * 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Free
+ * Software Foundation, Inc.
  *
  * The following terms apply to Digital Equipment Corporation's copyright
  * interest in XBoard:
@@ -59,6 +60,7 @@
 
 #include "config.h"
 
+#include <stdio.h>
 #include <signal.h>
 #if HAVE_UNISTD_H
 # include <unistd.h>
@@ -66,12 +68,13 @@
 
 #include "common.h"
 #include "frontend.h"
+#include "backend.h" /* for safeStrCpy */
 
 #if !USE_PTYS
 /* This code is for systems where pipes work properly */
 
-void SetUpChildIO(to_prog, from_prog)
-     int to_prog[2], from_prog[2];
+void
+SetUpChildIO (int to_prog[2], int from_prog[2])
 {
     signal(SIGPIPE, SIG_IGN);
     pipe(to_prog);
@@ -97,8 +100,8 @@ void SetUpChildIO(to_prog, from_prog)
 
 int PseudoTTY P((char pty_name[]));
 
-int SetUpChildIO(to_prog, from_prog)
-     int to_prog[2], from_prog[2];
+int
+SetUpChildIO (int to_prog[2], int from_prog[2])
 {
     char pty_name[MSG_SIZ];
 
@@ -125,19 +128,19 @@ int SetUpChildIO(to_prog, from_prog)
 #if HAVE_GRANTPT
 /* This code is for SVR4 */
 
-int PseudoTTY(pty_name)
-     char pty_name[];
+int
+PseudoTTY (char pty_name[])
 {
     extern char *ptsname();
     char *ptss;
     int fd;
-    
+
     fd = open("/dev/ptmx", O_RDWR);
     if (fd < 0) return fd;
     if (grantpt(fd) == -1) return -1;
     if (unlockpt(fd) == -1) return -1;
     if (!(ptss = ptsname(fd))) return -1;
-    strcpy(pty_name, ptss);
+    safeStrCpy(pty_name, ptss, sizeof(pty_name)/sizeof(pty_name[0]));
     return fd;
 }
 
@@ -145,15 +148,15 @@ int PseudoTTY(pty_name)
 #if HAVE__GETPTY
 /* This code is for IRIX */
 
-int PseudoTTY(pty_name)
-     char pty_name[];
+int
+PseudoTTY (char pty_name[])
 {
     int fd;
     char *ptyn;
 
     ptyn = _getpty(&fd, O_RDWR, 0600, 0);
     if (ptyn == NULL) return -1;
-    strcpy(pty_name, ptyn);
+    safeStrCpy(pty_name, ptyn, sizeof(pty_name)/sizeof(pty_name[0]));
     return fd;
 }
 
@@ -161,15 +164,15 @@ int PseudoTTY(pty_name)
 #if HAVE_LIBSEQ
 /* This code is for Sequent DYNIX/ptx.  Untested. --tpm */
 
-int PseudoTTY(pty_name)
-     char pty_name[];
+int
+PseudoTTY (char pty_name[])
 {
     int fd;
     char *slave, *master;
 
     fd = getpseudotty(&slave, &master);
     if (fd < 0) return fd;
-    strcpy(pty_name, slave);
+    safeStrCpy(pty_name, slave, sizeof(pty_name)/sizeof(pty_name[0]));
     return fd;
 }
 
@@ -184,8 +187,8 @@ int PseudoTTY(pty_name)
 #define LAST_PTY_LETTER 'z'
 #endif
 
-int PseudoTTY(pty_name)
-     char pty_name[];
+int
+PseudoTTY (char pty_name[])
 {
   struct stat stb;
   register c, i;
@@ -208,7 +211,7 @@ int PseudoTTY(pty_name)
 #ifdef PTY_NAME_SPRINTF
        PTY_NAME_SPRINTF
 #else
-       sprintf (pty_name, "/dev/pty%c%x", c, i);
+         sprintf (pty_name, "/dev/pty%c%x", c, i);
 #endif /* no PTY_NAME_SPRINTF */
 
 #ifdef PTY_OPEN
@@ -232,7 +235,7 @@ int PseudoTTY(pty_name)
 #ifdef PTY_TTY_NAME_SPRINTF
            PTY_TTY_NAME_SPRINTF
 #else
-            sprintf (pty_name, "/dev/tty%c%x", c, i);
+             sprintf (pty_name,  "/dev/tty%c%x", c, i);
 #endif /* no PTY_TTY_NAME_SPRINTF */
 #ifndef UNIPLUS
            if (access (pty_name, 6) != 0)