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author | Mike Gabriel <mike.gabriel@das-netzwerkteam.de> | 2017-07-21 12:31:09 +0200 |
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committer | Mike Gabriel <mike.gabriel@das-netzwerkteam.de> | 2017-08-25 10:06:49 +0200 |
commit | c350873c7c977efe5210484f04160be45f84ba7e (patch) | |
tree | 717d33eb315f4def1307d65108d14715696cd5cf /nx-X11/lib/src/DisName.c | |
parent | 1472e7e37838f17b7ed948fa206e8c3434a9d346 (diff) | |
download | nx-libs-c350873c7c977efe5210484f04160be45f84ba7e.tar.gz nx-libs-c350873c7c977efe5210484f04160be45f84ba7e.tar.bz2 nx-libs-c350873c7c977efe5210484f04160be45f84ba7e.zip |
Convert nx-X11/lib/ build flow from imake to autotools.
Diffstat (limited to 'nx-X11/lib/src/DisName.c')
-rw-r--r-- | nx-X11/lib/src/DisName.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/nx-X11/lib/src/DisName.c b/nx-X11/lib/src/DisName.c new file mode 100644 index 000000000..87a1e2f0e --- /dev/null +++ b/nx-X11/lib/src/DisName.c @@ -0,0 +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( "" ); +} |