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author | Reinhard Tartler <siretart@tauware.de> | 2011-10-10 17:43:39 +0200 |
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committer | Reinhard Tartler <siretart@tauware.de> | 2011-10-10 17:43:39 +0200 |
commit | f4092abdf94af6a99aff944d6264bc1284e8bdd4 (patch) | |
tree | 2ac1c9cc16ceb93edb2c4382c088dac5aeafdf0f /nx-X11/lib/X11/DisName.c | |
parent | a840692edc9c6d19cd7c057f68e39c7d95eb767d (diff) | |
download | nx-libs-f4092abdf94af6a99aff944d6264bc1284e8bdd4.tar.gz nx-libs-f4092abdf94af6a99aff944d6264bc1284e8bdd4.tar.bz2 nx-libs-f4092abdf94af6a99aff944d6264bc1284e8bdd4.zip |
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
Diffstat (limited to 'nx-X11/lib/X11/DisName.c')
-rw-r--r-- | nx-X11/lib/X11/DisName.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/nx-X11/lib/X11/DisName.c b/nx-X11/lib/X11/DisName.c new file mode 100644 index 000000000..59b5b3e1f --- /dev/null +++ b/nx-X11/lib/X11/DisName.c @@ -0,0 +1,66 @@ +/* $Xorg: DisName.c,v 1.4 2001/02/09 02:03:32 xorgcvs Exp $ */ + +/* + +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. + +*/ +/* $XFree86$ */ + +/* 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( "" ); +} |