From: Gurusamy Sarathy <gsar@cpan.org>
Date: Wed, 24 Dec 1997 04:21:30 +0000 (+0000)
Subject: [win32] support ioctl() on sockets (does what ioctlsocket() does) to make
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=f998180f71571d04f7a71972eb8eb78805338f5c;p=p5sagit%2Fp5-mst-13.2.git

[win32] support ioctl() on sockets (does what ioctlsocket() does) to make
non-blocking IO on sockets possible

p4raw-id: //depot/win32/perl@387
---

diff --git a/README.win32 b/README.win32
index 940c498..3727b2c 100644
--- a/README.win32
+++ b/README.win32
@@ -503,7 +503,7 @@ The following functions are currently unavailable: C<fork()>,
 C<dump()>, C<chown()>, C<link()>, C<symlink()>, C<chroot()>,
 C<setpgrp()> and related security functions, C<setpriority()>,
 C<getpriority()>, C<syscall()>, C<fcntl()>, C<getpw*()>,
-C<wait*()>, C<msg*()>, C<shm*()>, C<sem*()>, C<ioctl()>, C<alarm()>,
+C<wait*()>, C<msg*()>, C<shm*()>, C<sem*()>, C<alarm()>,
 C<socketpair()>, C<*netent()>, C<*protoent()>, C<*servent()>,
 C<*hostent()>, C<getnetby*()>.
 This list is possibly incomplete.
@@ -519,6 +519,11 @@ The four-argument C<select()> call is only supported on sockets.
 
 =item *
 
+The C<ioctl()> call is only supported on sockets (where it provides the
+functionality of ioctlsocket() in the Winsock API).
+
+=item *
+
 C<$?> ends up with the exitstatus of the subprocess (this is different
 from Unix, where the exitstatus is actually given by "$? >> 8").
 Failure to spawn() the subprocess is indicated by setting $? to 
diff --git a/dosish.h b/dosish.h
index c71ecd5..5704c78 100644
--- a/dosish.h
+++ b/dosish.h
@@ -46,6 +46,7 @@
 #define TMPPATH "plXXXXXX"
 
 #ifdef WIN32
+#define HAS_IOCTL
 #define HAS_UTIME
 #define HAS_KILL
 #endif
diff --git a/win32/makedef.pl b/win32/makedef.pl
index 766a426..27bcf95 100644
--- a/win32/makedef.pl
+++ b/win32/makedef.pl
@@ -507,6 +507,7 @@ win32_times
 win32_alarm
 win32_open_osfhandle
 win32_get_osfhandle
+win32_ioctl
 Perl_win32_init
 Perl_init_os_extras
 Perl_getTHR
diff --git a/win32/win32.c b/win32/win32.c
index bdfb3e2..8f96611 100644
--- a/win32/win32.c
+++ b/win32/win32.c
@@ -610,15 +610,6 @@ kill(int pid, int sig)
  * File system stuff
  */
 
-#if 0
-int
-ioctl(int i, unsigned int u, char *data)
-{
-    croak("ioctl not implemented!\n");
-    return -1;
-}
-#endif
-
 DllExport unsigned int
 win32_sleep(unsigned int t)
 {
diff --git a/win32/win32iop.h b/win32/win32iop.h
index d565cb5..5e03f95 100644
--- a/win32/win32iop.h
+++ b/win32/win32iop.h
@@ -114,6 +114,7 @@ DllExport  int		win32_times(struct tms *timebuf);
 DllExport  unsigned 	win32_alarm(unsigned int sec);
 DllExport  int		win32_flock(int fd, int oper);
 DllExport  int		win32_stat(const char *path, struct stat *buf);
+DllExport  int		win32_ioctl(int i, unsigned int u, char *data);
 
 #ifdef HAVE_DES_FCRYPT
 DllExport char *	win32_crypt(const char *txt, const char *salt);
@@ -138,6 +139,7 @@ END_EXTERN_C
 #undef sleep
 #undef times
 #undef alarm
+#undef ioctl
 
 #ifdef __BORLANDC__
 #undef ungetc
@@ -236,6 +238,7 @@ END_EXTERN_C
 #define sleep			win32_sleep
 #define times			win32_times
 #define alarm			win32_alarm
+#define ioctl			win32_ioctl
 
 #ifdef HAVE_DES_FCRYPT
 #undef crypt
diff --git a/win32/win32sck.c b/win32/win32sck.c
index 64d1a0a..a6e7a99 100644
--- a/win32/win32sck.c
+++ b/win32/win32sck.c
@@ -223,7 +223,7 @@ win32_getsockopt(SOCKET s, int level, int optname, char *optval, int *optlen)
     return r;
 }
 
-int
+DllExport int
 win32_ioctlsocket(SOCKET s, long cmd, u_long *argp)
 {
     int r;
@@ -466,6 +466,28 @@ win32_getservbyport(int port, const char *proto)
     return r;
 }
 
+int
+win32_ioctl(int i, unsigned int u, char *data)
+{
+    u_long argp = (u_long)data;
+    int retval;
+
+    if (!wsock_started) {
+	croak("ioctl implemented only on sockets");
+	/* NOTREACHED */
+    }
+
+    retval = ioctlsocket(TO_SOCKET(i), (long)u, &argp);
+    if (retval == SOCKET_ERROR) {
+	if (WSAGetLastError() == WSAENOTSOCK) {
+	    croak("ioctl implemented only on sockets");
+	    /* NOTREACHED */
+	}
+	errno = WSAGetLastError();
+    }
+    return retval;
+}
+
 char FAR *
 win32_inet_ntoa(struct in_addr in)
 {