diff options
Diffstat (limited to 'libX11/src/DisName.c')
-rw-r--r-- | libX11/src/DisName.c | 128 |
1 files changed, 64 insertions, 64 deletions
diff --git a/libX11/src/DisName.c b/libX11/src/DisName.c index 87a1e2f0e..598347746 100644 --- a/libX11/src/DisName.c +++ b/libX11/src/DisName.c @@ -1,64 +1,64 @@ - -/* - -Copyright 1994, 1998 The Open Group - -Permission to use, copy, modify, distribute, and sell this software and its -documentation for any purpose is hereby granted without fee, provided that -the above copyright notice appear in all copies and that both that -copyright notice and this permission notice appear in supporting -documentation. - -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 OPEN GROUP 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 of The Open Group shall -not be used in advertising or otherwise to promote the sale, use or -other dealings in this Software without prior written authorization -from The Open Group. - -*/ - -/* XDisplayName.c */ -/* - * Returns the name of the display XOpenDisplay would use. This is better - * than just printing the "display" variable in a program because that - * could be NULL and/or there could be an environment variable set. - * This makes it easier for programmers to provide meaningful error - * messages. - * - * - * For example, this is used in XOpenDisplay() as - * strncpy( displaybuf, XDisplayName( display ), sizeof(displaybuf) ); - * if ( *displaybuf == '\0' ) return( NULL ); - * This check is actually unnecessary because the next thing is an index() - * call looking for a ':' which will fail and we'll return(NULL). - */ -/* Written at Waterloo - JMSellens */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif -#include <stdio.h> -#include <stdlib.h> -#include "Xlib.h" - -char * -XDisplayName( - _Xconst char *display) -{ - char *d; - if ( display != (char *)NULL && *display != '\0' ) - return( (char *)display ); - if ( (d = getenv( "DISPLAY" )) != (char *)NULL ) - return( d ); - return( "" ); -} +
+/*
+
+Copyright 1994, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+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 OPEN GROUP 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 of The Open Group shall
+not be used in advertising or otherwise to promote the sale, use or
+other dealings in this Software without prior written authorization
+from The Open Group.
+
+*/
+
+/* XDisplayName.c */
+/*
+ * Returns the name of the display XOpenDisplay would use. This is better
+ * than just printing the "display" variable in a program because that
+ * could be NULL and/or there could be an environment variable set.
+ * This makes it easier for programmers to provide meaningful error
+ * messages.
+ *
+ *
+ * For example, this is used in XOpenDisplay() as
+ * strncpy( displaybuf, XDisplayName( display ), sizeof(displaybuf) );
+ * if ( *displaybuf == '\0' ) return( NULL );
+ * This check is actually unnecessary because the next thing is an index()
+ * call looking for a ':' which will fail and we'll return(NULL).
+ */
+/* Written at Waterloo - JMSellens */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#include "Xlib.h"
+
+char *
+XDisplayName(
+ _Xconst char *display)
+{
+ char *d;
+ if ( display != (char *)NULL && *display != '\0' )
+ return( (char *)display );
+ if ( (d = getenv( "DISPLAY" )) != (char *)NULL )
+ return( d );
+ return( "" );
+}
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