Imported nx-X11-3.3.0-6.tar.gznx-X11/3.3.0-6

Summary: Imported nx-X11-3.3.0-6.tar.gz
Keywords:

Imported nx-X11-3.3.0-6.tar.gz
into Git repository

9 files changed, 474 insertions, 4 deletions

diff --git a/nx-X11/CHANGELOG b/nx-X11/CHANGELOG
index a6c169dd7..7b410fd55 100644
--- a/nx-X11/CHANGELOG
+++ b/nx-X11/CHANGELOG
@@ -1,5 +1,13 @@
 ChangeLog:
 
+nx-X11-3.3.0-6
+
+- Fixed TR03G02198. Reimplemented Xvprintf() in Xserver/os to handle
+  the case in which vsnprintf returned -1.
+
+- Returning from _XSeqSyncFunction() and _XReply() if an I/O error is
+  detected.
+
 nx-X11-3.3.0-5
 
 - Fixed TR01G02163. Signals need to be blocked before the call to
diff --git a/nx-X11/CHANGELOG.NX.original b/nx-X11/CHANGELOG.NX.original
index a6c169dd7..7b410fd55 100644
--- a/nx-X11/CHANGELOG.NX.original
+++ b/nx-X11/CHANGELOG.NX.original
@@ -1,5 +1,13 @@
 ChangeLog:
 
+nx-X11-3.3.0-6
+
+- Fixed TR03G02198. Reimplemented Xvprintf() in Xserver/os to handle
+  the case in which vsnprintf returned -1.
+
+- Returning from _XSeqSyncFunction() and _XReply() if an I/O error is
+  detected.
+
 nx-X11-3.3.0-5
 
 - Fixed TR01G02163. Signals need to be blocked before the call to
diff --git a/nx-X11/lib/X11/XlibInt.c b/nx-X11/lib/X11/XlibInt.c
index 97758e7ab..6dcd1f0f6 100644
--- a/nx-X11/lib/X11/XlibInt.c
+++ b/nx-X11/lib/X11/XlibInt.c
@@ -877,6 +877,19 @@ int _XSeqSyncFunction(
     xGetInputFocusReply rep;
     register xReq *req;
 
+#ifdef NX_TRANS_SOCKET
+#ifdef NX_TRANS_DEBUG
+    fprintf(stderr, "_XSeqSyncFunction: Going to synchronize the display.\n");
+#endif
+    if (dpy->flags & XlibDisplayIOError)
+    {
+#ifdef NX_TRANS_DEBUG
+        fprintf(stderr, "_XSeqSyncFunction: Returning 0 with I/O error detected.\n");
+#endif
+        return 0;
+    }
+#endif
+
     LockDisplay(dpy);
     if ((dpy->request - dpy->last_request_read) >= (BUFSIZE / SIZEOF(xReq))) {
 	GetEmptyReq(GetInputFocus, req);
@@ -930,6 +943,10 @@ static void _XFlushInt(
         int congestion;
 #endif
 
+#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_DEBUG)
+        fprintf(stderr, "_XFlushInt: Entering flush with [%d] bytes to write.\n",
+                    (dpy->bufptr - dpy->buffer));
+#endif
 	/* This fix resets the bufptr to the front of the buffer so
 	 * additional appends to the bufptr will not corrupt memory. Since
 	 * the server is down, these appends are no-op's anyway but 
@@ -937,6 +954,9 @@ static void _XFlushInt(
 	 */
 	if (dpy->flags & XlibDisplayIOError)
 	{
+#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_DEBUG)
+        fprintf(stderr, "_XFlushInt: Returning with I/O error detected.\n");
+#endif
 	    dpy->bufptr = dpy->buffer;
 	    dpy->last_req = (char *)&_dummy_request;
 	    return;
@@ -1404,6 +1424,15 @@ void _XReadEvents(
 	    dpy->flags |= XlibDisplayReadEvents;
 	    i = _XRead (dpy, read_buf, (long) len);
 	    dpy->flags &= ~XlibDisplayReadEvents;
+#ifdef NX_TRANS_SOCKET
+            if (dpy->flags & XlibDisplayIOError)
+            {
+#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_DEBUG)
+                fprintf(stderr, "_XReadEvents: Returning with I/O error detected.\n");
+#endif
+                return;
+            }
+#endif
 	    if (i == -2) {
 		/* special flag from _XRead to say that internal connection has
 		   done XPutBackEvent.  Which we can use so we're done. */
@@ -1841,10 +1870,17 @@ _XSend (
 #endif
 
 #ifdef NX_TRANS_SOCKET
+#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_DEBUG)
+    fprintf(stderr, "_XSend: Sending data with [%d] bytes to write.\n",
+                (dpy->bufptr - dpy->buffer));
+#endif
         if (!size || (dpy->flags & XlibDisplayIOError))
         {
             if (dpy->flags & XlibDisplayIOError)
             {
+#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_DEBUG)
+                fprintf(stderr, "_XSend: Returning with I/O error detected.\n");
+#endif
 	        dpy->bufptr = dpy->buffer;
 	        dpy->last_req = (char *)&_dummy_request;
             }
@@ -2222,8 +2258,18 @@ _XReply (
     fprintf(stderr, "_XReply: Going to wait for an X reply.\n");
 #endif
 
+#ifdef NX_TRANS_SOCKET
+    if (dpy->flags & XlibDisplayIOError)
+    {
+#ifdef NX_TRANS_DEBUG
+        fprintf(stderr, "_XReply: Returning 0 with I/O error detected.\n");
+#endif
+        return 0;
+    }
+#else
     if (dpy->flags & XlibDisplayIOError)
 	return 0;
+#endif
 
 #ifdef XTHREADS
     /* create our condition variable and append to list */
@@ -2239,6 +2285,9 @@ _XReply (
 	   XThread_Self(), cvl);
 #endif
 
+#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_DEBUG)
+    fprintf(stderr, "_XReply: Going to flush the display buffer.\n");
+#endif
     _XFlushInt(dpy, cvl ? cvl->cv : NULL);
     /* if it is not our turn to read a reply off the wire,
      * wait til we're at head of list.  if there is an event waiter,
@@ -3583,11 +3632,21 @@ _XIOError (
      */
 
 #ifdef NX_TRANS_TEST
-    fprintf(stderr, "_XIOError: Resetting the display buffers.\n");
+    fprintf(stderr, "_XIOError: Resetting the display buffer.\n");
 #endif
 
     dpy->bufptr = dpy->buffer;
     dpy->last_req = (char *) &_dummy_request;
+
+#ifdef NX_TRANS_TEST
+    fprintf(stderr, "_XIOError: Resetting the display flags.\n");
+#endif
+
+    dpy->flags &= ~XlibDisplayProcConni;
+    dpy->flags &= ~XlibDisplayPrivSync;
+    dpy->flags &= ~XlibDisplayReadEvents;
+    dpy->flags &= ~XlibDisplayWriting;
+    dpy->flags &= ~XlibDisplayReply;
 #else
     exit (1);
 #endif
diff --git a/nx-X11/lib/X11/XlibInt.c.NX.original b/nx-X11/lib/X11/XlibInt.c.NX.original
index 97758e7ab..6dcd1f0f6 100644
--- a/nx-X11/lib/X11/XlibInt.c.NX.original
+++ b/nx-X11/lib/X11/XlibInt.c.NX.original
@@ -877,6 +877,19 @@ int _XSeqSyncFunction(
     xGetInputFocusReply rep;
     register xReq *req;
 
+#ifdef NX_TRANS_SOCKET
+#ifdef NX_TRANS_DEBUG
+    fprintf(stderr, "_XSeqSyncFunction: Going to synchronize the display.\n");
+#endif
+    if (dpy->flags & XlibDisplayIOError)
+    {
+#ifdef NX_TRANS_DEBUG
+        fprintf(stderr, "_XSeqSyncFunction: Returning 0 with I/O error detected.\n");
+#endif
+        return 0;
+    }
+#endif
+
     LockDisplay(dpy);
     if ((dpy->request - dpy->last_request_read) >= (BUFSIZE / SIZEOF(xReq))) {
 	GetEmptyReq(GetInputFocus, req);
@@ -930,6 +943,10 @@ static void _XFlushInt(
         int congestion;
 #endif
 
+#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_DEBUG)
+        fprintf(stderr, "_XFlushInt: Entering flush with [%d] bytes to write.\n",
+                    (dpy->bufptr - dpy->buffer));
+#endif
 	/* This fix resets the bufptr to the front of the buffer so
 	 * additional appends to the bufptr will not corrupt memory. Since
 	 * the server is down, these appends are no-op's anyway but 
@@ -937,6 +954,9 @@ static void _XFlushInt(
 	 */
 	if (dpy->flags & XlibDisplayIOError)
 	{
+#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_DEBUG)
+        fprintf(stderr, "_XFlushInt: Returning with I/O error detected.\n");
+#endif
 	    dpy->bufptr = dpy->buffer;
 	    dpy->last_req = (char *)&_dummy_request;
 	    return;
@@ -1404,6 +1424,15 @@ void _XReadEvents(
 	    dpy->flags |= XlibDisplayReadEvents;
 	    i = _XRead (dpy, read_buf, (long) len);
 	    dpy->flags &= ~XlibDisplayReadEvents;
+#ifdef NX_TRANS_SOCKET
+            if (dpy->flags & XlibDisplayIOError)
+            {
+#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_DEBUG)
+                fprintf(stderr, "_XReadEvents: Returning with I/O error detected.\n");
+#endif
+                return;
+            }
+#endif
 	    if (i == -2) {
 		/* special flag from _XRead to say that internal connection has
 		   done XPutBackEvent.  Which we can use so we're done. */
@@ -1841,10 +1870,17 @@ _XSend (
 #endif
 
 #ifdef NX_TRANS_SOCKET
+#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_DEBUG)
+    fprintf(stderr, "_XSend: Sending data with [%d] bytes to write.\n",
+                (dpy->bufptr - dpy->buffer));
+#endif
         if (!size || (dpy->flags & XlibDisplayIOError))
         {
             if (dpy->flags & XlibDisplayIOError)
             {
+#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_DEBUG)
+                fprintf(stderr, "_XSend: Returning with I/O error detected.\n");
+#endif
 	        dpy->bufptr = dpy->buffer;
 	        dpy->last_req = (char *)&_dummy_request;
             }
@@ -2222,8 +2258,18 @@ _XReply (
     fprintf(stderr, "_XReply: Going to wait for an X reply.\n");
 #endif
 
+#ifdef NX_TRANS_SOCKET
+    if (dpy->flags & XlibDisplayIOError)
+    {
+#ifdef NX_TRANS_DEBUG
+        fprintf(stderr, "_XReply: Returning 0 with I/O error detected.\n");
+#endif
+        return 0;
+    }
+#else
     if (dpy->flags & XlibDisplayIOError)
 	return 0;
+#endif
 
 #ifdef XTHREADS
     /* create our condition variable and append to list */
@@ -2239,6 +2285,9 @@ _XReply (
 	   XThread_Self(), cvl);
 #endif
 
+#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_DEBUG)
+    fprintf(stderr, "_XReply: Going to flush the display buffer.\n");
+#endif
     _XFlushInt(dpy, cvl ? cvl->cv : NULL);
     /* if it is not our turn to read a reply off the wire,
      * wait til we're at head of list.  if there is an event waiter,
@@ -3583,11 +3632,21 @@ _XIOError (
      */
 
 #ifdef NX_TRANS_TEST
-    fprintf(stderr, "_XIOError: Resetting the display buffers.\n");
+    fprintf(stderr, "_XIOError: Resetting the display buffer.\n");
 #endif
 
     dpy->bufptr = dpy->buffer;
     dpy->last_req = (char *) &_dummy_request;
+
+#ifdef NX_TRANS_TEST
+    fprintf(stderr, "_XIOError: Resetting the display flags.\n");
+#endif
+
+    dpy->flags &= ~XlibDisplayProcConni;
+    dpy->flags &= ~XlibDisplayPrivSync;
+    dpy->flags &= ~XlibDisplayReadEvents;
+    dpy->flags &= ~XlibDisplayWriting;
+    dpy->flags &= ~XlibDisplayReply;
 #else
     exit (1);
 #endif
diff --git a/nx-X11/programs/Xserver/os/xprintf.c b/nx-X11/programs/Xserver/os/xprintf.c
index 07eaa1f58..a1ee21300 100644
--- a/nx-X11/programs/Xserver/os/xprintf.c
+++ b/nx-X11/programs/Xserver/os/xprintf.c
@@ -43,6 +43,63 @@
 # endif
 #endif
     
+#ifdef NXAGENT_SERVER
+
+#define PANIC
+#define WARNING
+#undef  TEST
+#undef  DEBUG
+
+#define START_SIZE  256
+#define END_SIZE   2048
+
+char *
+Xvprintf(const char *format, va_list va)
+{
+    char *ret;
+    char *newret;
+    int size;
+    int r;
+
+    size = 0;
+
+    for (;;)
+    {
+      if (size == 0)
+      {
+        ret = (char *)malloc(START_SIZE);
+        if (ret == NULL)
+          return NULL;
+        size = START_SIZE;
+      }
+      else if (size < END_SIZE &&
+                   (newret = (char *) realloc(ret, 2 * size)) != NULL)
+      {
+        ret = newret;
+        size = 2 * size;
+      }
+      else
+      {
+        free(ret);
+        return NULL;
+      }
+
+      r = vsnprintf(ret, size, format, va);
+
+      if (r == -1 || r == size || r > size || r == size - 1)
+      {
+        continue;
+      }
+      else
+      {
+        ret[r] = 0;
+        return ret;
+      }
+    }
+}
+
+#else
+
 char *
 Xvprintf(const char *format, va_list va)
 {
@@ -63,6 +120,8 @@ Xvprintf(const char *format, va_list va)
     return ret;
 }
 
+#endif
+
 char *Xprintf(const char *format, ...)
 {
     char *ret;
diff --git a/nx-X11/programs/Xserver/os/xprintf.c.NX.original b/nx-X11/programs/Xserver/os/xprintf.c.NX.original
new file mode 100644
index 000000000..a1ee21300
--- /dev/null
+++ b/nx-X11/programs/Xserver/os/xprintf.c.NX.original
@@ -0,0 +1,163 @@
+/* 
+ * printf routines which xalloc their buffer
+ */ 
+/*
+ * Copyright (c) 2004 Alexander Gottwald
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the name(s) of the above copyright
+ * holders shall not be used in advertising or otherwise to promote the sale,
+ * use or other dealings in this Software without prior written authorization.
+ */
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <X11/Xos.h>
+#include "os.h"
+#include <stdarg.h>
+#include <stdio.h>
+
+#ifndef va_copy
+# ifdef __va_copy
+#  define va_copy __va_copy
+# else
+#  error "no working va_copy was found"
+# endif
+#endif
+    
+#ifdef NXAGENT_SERVER
+
+#define PANIC
+#define WARNING
+#undef  TEST
+#undef  DEBUG
+
+#define START_SIZE  256
+#define END_SIZE   2048
+
+char *
+Xvprintf(const char *format, va_list va)
+{
+    char *ret;
+    char *newret;
+    int size;
+    int r;
+
+    size = 0;
+
+    for (;;)
+    {
+      if (size == 0)
+      {
+        ret = (char *)malloc(START_SIZE);
+        if (ret == NULL)
+          return NULL;
+        size = START_SIZE;
+      }
+      else if (size < END_SIZE &&
+                   (newret = (char *) realloc(ret, 2 * size)) != NULL)
+      {
+        ret = newret;
+        size = 2 * size;
+      }
+      else
+      {
+        free(ret);
+        return NULL;
+      }
+
+      r = vsnprintf(ret, size, format, va);
+
+      if (r == -1 || r == size || r > size || r == size - 1)
+      {
+        continue;
+      }
+      else
+      {
+        ret[r] = 0;
+        return ret;
+      }
+    }
+}
+
+#else
+
+char *
+Xvprintf(const char *format, va_list va)
+{
+    char *ret;
+    int size;
+    va_list va2;
+
+    va_copy(va2, va);
+    size = vsnprintf(NULL, 0, format, va2);
+    va_end(va2);
+
+    ret = (char *)Xalloc(size + 1);
+    if (ret == NULL)
+        return NULL;
+
+    vsnprintf(ret, size + 1, format, va);
+    ret[size] = 0;
+    return ret;
+}
+
+#endif
+
+char *Xprintf(const char *format, ...)
+{
+    char *ret;
+    va_list va;
+    va_start(va, format);
+    ret = Xvprintf(format, va);
+    va_end(va);
+    return ret;
+}
+
+char *
+XNFvprintf(const char *format, va_list va)
+{
+    char *ret;
+    int size;
+    va_list va2;
+
+    va_copy(va2, va);
+    size = vsnprintf(NULL, 0, format, va2);
+    va_end(va2);
+
+    ret = (char *)XNFalloc(size + 1);
+    if (ret == NULL)
+        return NULL;
+
+    vsnprintf(ret, size + 1, format, va);
+    ret[size] = 0;
+    return ret;
+}
+
+char *XNFprintf(const char *format, ...)
+{
+    char *ret;
+    va_list va;
+    va_start(va, format);
+    ret = XNFvprintf(format, va);
+    va_end(va);
+    return ret;
+}
diff --git a/nx-X11/programs/Xserver/os/xprintf.c.X.original b/nx-X11/programs/Xserver/os/xprintf.c.X.original
new file mode 100644
index 000000000..07eaa1f58
--- /dev/null
+++ b/nx-X11/programs/Xserver/os/xprintf.c.X.original
@@ -0,0 +1,104 @@
+/* 
+ * printf routines which xalloc their buffer
+ */ 
+/*
+ * Copyright (c) 2004 Alexander Gottwald
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the name(s) of the above copyright
+ * holders shall not be used in advertising or otherwise to promote the sale,
+ * use or other dealings in this Software without prior written authorization.
+ */
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <X11/Xos.h>
+#include "os.h"
+#include <stdarg.h>
+#include <stdio.h>
+
+#ifndef va_copy
+# ifdef __va_copy
+#  define va_copy __va_copy
+# else
+#  error "no working va_copy was found"
+# endif
+#endif
+    
+char *
+Xvprintf(const char *format, va_list va)
+{
+    char *ret;
+    int size;
+    va_list va2;
+
+    va_copy(va2, va);
+    size = vsnprintf(NULL, 0, format, va2);
+    va_end(va2);
+
+    ret = (char *)Xalloc(size + 1);
+    if (ret == NULL)
+        return NULL;
+
+    vsnprintf(ret, size + 1, format, va);
+    ret[size] = 0;
+    return ret;
+}
+
+char *Xprintf(const char *format, ...)
+{
+    char *ret;
+    va_list va;
+    va_start(va, format);
+    ret = Xvprintf(format, va);
+    va_end(va);
+    return ret;
+}
+
+char *
+XNFvprintf(const char *format, va_list va)
+{
+    char *ret;
+    int size;
+    va_list va2;
+
+    va_copy(va2, va);
+    size = vsnprintf(NULL, 0, format, va2);
+    va_end(va2);
+
+    ret = (char *)XNFalloc(size + 1);
+    if (ret == NULL)
+        return NULL;
+
+    vsnprintf(ret, size + 1, format, va);
+    ret[size] = 0;
+    return ret;
+}
+
+char *XNFprintf(const char *format, ...)
+{
+    char *ret;
+    va_list va;
+    va_start(va, format);
+    ret = XNFvprintf(format, va);
+    va_end(va);
+    return ret;
+}
diff --git a/nx-X11/programs/Xserver/xkb/ddxLoad.c b/nx-X11/programs/Xserver/xkb/ddxLoad.c
index 8e35ab82a..e69d95670 100644
--- a/nx-X11/programs/Xserver/xkb/ddxLoad.c
+++ b/nx-X11/programs/Xserver/xkb/ddxLoad.c
@@ -719,7 +719,12 @@ char tmpname[PATH_MAX];
     }
     
     #ifdef TEST
-    fprintf(stderr, "XkbDDXCompileKeymapByNames: Executing command [%s].\n", buf);
+    if (buf != NULL)
+        fprintf(stderr, "XkbDDXCompileKeymapByNames: "
+                    "Executing command [%s].\n", buf);
+    else
+        fprintf(stderr, "XkbDDXCompileKeymapByNames: "
+                    "Callin Popen() with null command.\n");
     #endif
 
 #ifndef WIN32
diff --git a/nx-X11/programs/Xserver/xkb/ddxLoad.c.NX.original b/nx-X11/programs/Xserver/xkb/ddxLoad.c.NX.original
index 8e35ab82a..e69d95670 100644
--- a/nx-X11/programs/Xserver/xkb/ddxLoad.c.NX.original
+++ b/nx-X11/programs/Xserver/xkb/ddxLoad.c.NX.original
@@ -719,7 +719,12 @@ char tmpname[PATH_MAX];
     }
     
     #ifdef TEST
-    fprintf(stderr, "XkbDDXCompileKeymapByNames: Executing command [%s].\n", buf);
+    if (buf != NULL)
+        fprintf(stderr, "XkbDDXCompileKeymapByNames: "
+                    "Executing command [%s].\n", buf);
+    else
+        fprintf(stderr, "XkbDDXCompileKeymapByNames: "
+                    "Callin Popen() with null command.\n");
     #endif
 
 #ifndef WIN32