Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 237 insertions, 0 deletions

diff --git a/nx-X11/lib/dps/csstartNX.c b/nx-X11/lib/dps/csstartNX.c
new file mode 100644
index 000000000..0db2cbe5b
--- /dev/null
+++ b/nx-X11/lib/dps/csstartNX.c
@@ -0,0 +1,237 @@
+/*
+  csstartNX.c
+
+ * (c) Copyright 1992-1994 Adobe Systems Incorporated.
+ * All rights reserved.
+ * 
+ * Permission to use, copy, modify, distribute, and sublicense this software
+ * and its documentation for any purpose and without fee is hereby granted,
+ * provided that the above copyright notices appear in all copies and that
+ * both those copyright notices and this permission notice appear in
+ * supporting documentation and that the name of Adobe Systems Incorporated
+ * not be used in advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.  No trademark license
+ * to use the Adobe trademarks is hereby granted.  If the Adobe trademark
+ * "Display PostScript"(tm) is used to describe this software, its
+ * functionality or for any other purpose, such use shall be limited to a
+ * statement that this software works in conjunction with the Display
+ * PostScript system.  Proper trademark attribution to reflect Adobe's
+ * ownership of the trademark shall be given whenever any such reference to
+ * the Display PostScript system is made.
+ * 
+ * ADOBE MAKES NO REPRESENTATIONS ABOUT THE SUITABILITY OF THE SOFTWARE FOR
+ * ANY PURPOSE.  IT IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY.
+ * ADOBE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NON- INFRINGEMENT OF THIRD PARTY RIGHTS.  IN NO EVENT SHALL ADOBE BE LIABLE
+ * TO YOU OR ANY OTHER PARTY FOR ANY SPECIAL, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER WHETHER IN AN ACTION OF CONTRACT,
+ * NEGLIGENCE, STRICT LIABILITY OR ANY OTHER ACTION ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.  ADOBE WILL NOT
+ * PROVIDE ANY TRAINING OR OTHER SUPPORT FOR THE SOFTWARE.
+ * 
+ * Adobe, PostScript, and Display PostScript are trademarks of Adobe Systems
+ * Incorporated which may be registered in certain jurisdictions
+ * 
+ * Author:  Adobe Systems Incorporated
+ */
+/* $XFree86: xc/lib/dps/csstartNX.c,v 1.6 2001/10/28 03:32:43 tsi Exp $ */
+
+#include <sys/param.h>
+#include <X11/X.h>
+#include <X11/Xlibint.h>
+#include <sys/wait.h>
+#include <DPS/dpsNXargs.h>
+#include <sys/socket.h>
+#include <errno.h>
+#include <X11/Xos.h>
+
+#include "DPSCAPproto.h"
+#include "Xlibnet.h"            /* New for R5, delete for R4 */
+#include "dpsassert.h"
+#include "csfindNX.h"
+#include "csstartNX.h"
+
+/* ---Defines--- */
+
+#include <stddef.h>
+  
+#define DOZETIME 1              /* time to wait for agent to start up (sec) */
+
+#define BASE_TCP_PORT CSDPSPORT
+
+#ifndef CSDPSMAXPORT
+#define CSDPSMAXPORT 16
+#endif
+
+#ifndef SO_REUSEADDR
+#define SO_REUSEADDR 1
+#endif
+
+/* ---Globals--- */
+
+pid_t gSecretAgentPID = 0;	/* PID of launched agent *Shh!* Not public! */
+
+/* ---Private Functions--- */
+
+static int
+TryTCP(void)
+{
+    struct sockaddr_in insock;
+    int request;
+    unsigned short port, startPort = 0;
+    struct servent *serventInfo;
+    int okay;
+
+#ifndef ultrix
+    /* Ultrix has a nasty bug in getservbyname().  If the name passed
+       to it doesn't exist in the services list it will seg. fault...
+       * sigh *  */
+    if ((serventInfo = getservbyname(DPS_NX_SERV_NAME,
+    					(char *) 0)) != 0)
+        if (strcmp("tcp", serventInfo->s_proto) == 0) {
+	  startPort = ntohs(serventInfo->s_port);
+	}
+    /* So, for Ultrix we just default to the default default port :-) */ 
+#endif /* ultrix */
+    if (startPort == 0) startPort = BASE_TCP_PORT;
+    if ((request = socket (AF_INET, SOCK_STREAM, 0)) < 0) 
+    {
+	DPSWarnProc(NULL, "Creating TCP socket while recommending port\n");
+	return -1;
+    } 
+#ifdef SO_REUSEADDR
+    /* Necesary to restart the server without a reboot */
+    {
+	int one = 1;
+	setsockopt(request, SOL_SOCKET, SO_REUSEADDR, (char *)&one, sizeof(int));
+    }
+    /* What the hell is all this?  I'll tell you.  We don't know
+       a prioi what port is free, so we try to bind to each
+       in sequence and return the one that works. */
+#if !defined(AIXV3)
+    {
+      struct linger lingere;
+      
+      lingere.l_onoff = 0;		/* off */
+      lingere.l_linger = 0;		/* don't */
+      if(setsockopt(request, SOL_SOCKET, SO_LINGER, (char *)&lingere,
+        sizeof(struct linger)) != 0)
+      DPSWarnProc(NULL,
+		  "Couldn't set TCP SO_DONTLINGER while recommending port.");
+    }
+#endif /* AIXV3 */
+#endif /* SO_REUSEADDR */
+    bzero((char *)&insock, sizeof (insock));
+    insock.sin_family = AF_INET;
+    insock.sin_addr.s_addr = htonl(INADDR_ANY);
+    okay = 0;
+    
+    for (port = startPort; (int) port < (int) startPort + CSDPSMAXPORT; port++)
+    {
+    int result;
+    insock.sin_port = htons(port);
+    
+    errno = 0;
+    result = bind(request, (struct sockaddr *) &insock, sizeof (insock));
+    if (result < 0)
+        {
+	if (errno != EADDRINUSE)
+	    {
+	    DPSWarnProc(NULL, "Binding TCP socket while recommending port.\n");
+	    close(request);
+	    return -1;
+	    }
+	continue;
+	}
+    else
+        {
+        /* We have a good port number */
+        okay = 1;
+	break;
+	}
+    }
+    close(request);
+    return (okay) ? port : -1;
+}
+
+/* ---Functions--- */
+
+int
+XDPSNXRecommendPort(int transport)
+{
+    int ret;
+    
+    switch (transport)
+        {
+	case XDPSNX_TRANS_UNIX:
+	    /* If the TCP socket exists, we just assume the UNIX one
+	       is there too.  FALL THRU! */
+	case XDPSNX_TRANS_TCP: /* TCP */
+	    ret = TryTCP();
+	    break;
+	default: ret = -1;
+	}
+    return(ret);
+}
+
+int
+StartXDPSNX(char **additionalArgs)
+{
+  char **args, **cpp;
+  pid_t childPid;
+  int argc = 1;			/* 1, args[0]:=path, args[1]:=null */
+  int i = 0;
+  int status = Success;		/* assume we'll succeed */
+  char *execObj, **execArgs;
+
+  (void) XDPSGetNXArg(XDPSNX_EXEC_FILE, (void **) &execObj);
+  if (execObj == 0) return (!Success);
+
+  /* Create the argv list for the execl() call */
+  (void) XDPSGetNXArg(XDPSNX_EXEC_ARGS, (void **) &execArgs);
+  if (execArgs != 0)
+    for(cpp = execArgs; *cpp != 0; cpp++, argc++); /* count args. */
+  if (additionalArgs != 0)	/* add on the add-on args. */
+    for(cpp = additionalArgs; *cpp != 0; cpp++, argc++); 
+
+  args = (char **) Xmalloc(sizeof(char *) * (argc+1));
+  if (args == 0)
+    return(!Success);
+  args[argc] = 0;		/* cap end of args */
+  args[i++] = execObj;
+  if (additionalArgs != 0)
+    for(cpp = additionalArgs; *cpp != 0; cpp++, i++) args[i] = *cpp;
+  if (execArgs != 0)
+    for(cpp = execArgs; *cpp != 0; cpp++, i++) args[i] = *cpp;
+
+  /* now try to start up the agent... */
+  if ((childPid = fork()) != -1) {
+    if (childPid == 0) {	/* Child process */
+#ifndef __UNIXOS2__
+      if (setsid() < 0)
+        DPSWarnProc(NULL, "Agent unable to create session.  Continuing...\n");
+#endif
+
+      /* Try to start the agent */
+      if (execvp(args[0], args) < 0) { /* Error!! */
+	exit(1);		/* This is OKAY, we're the child here */
+      }
+      /* SHOULD NEVER REACH HERE */
+    } else {			/* Parent (NX Client) */
+      (void) sleep(DOZETIME);
+      /* if decmips, pray that we hesitate long enough for the child... */
+      /* Check on child (NX Agent) */
+      if (waitpid(childPid, NULL, WNOHANG) != 0) {
+	/* Server terminated or stopped; don't care, result is same... */
+	status = !Success;
+      } else {			/* we think the agent started okay */
+	gSecretAgentPID = childPid; /* set secret global */
+      }
+    }
+  } else {			/* Error in fork */
+    status = !Success;
+  }
+  if (args != 0) (void) XFree(args);
+  return(status);
+}