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- /*
- * CDE - Common Desktop Environment
- *
- * Copyright (c) 1993-2012, The Open Group. All rights reserved.
- *
- * These libraries and programs are free software; you can
- * redistribute them and/or modify them under the terms of the GNU
- * Lesser General Public License as published by the Free Software
- * Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
- * These libraries and programs are distributed in the hope that
- * they will be useful, but WITHOUT ANY WARRANTY; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE. See the GNU Lesser General Public License for more
- * details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with these libraries and programs; if not, write
- * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
- * Floor, Boston, MA 02110-1301 USA
- */
- /* $XConsortium: qualify.c /main/3 1995/10/27 16:14:33 rswiston $ */
- /* *
- * (c) Copyright 1993, 1994 Hewlett-Packard Company *
- * (c) Copyright 1993, 1994 International Business Machines Corp. *
- * (c) Copyright 1993, 1994 Sun Microsystems, Inc. *
- * (c) Copyright 1993, 1994 Novell, Inc. *
- */
- #include <stdio.h>
- #include <string.h>
- #include <stdlib.h>
- /*********************************************************************
- * qualifyWithFirst
- *
- * takes: an unqualified filename like foo.txt, and
- * a colon-separated list of pathnames, such as
- * /etc/opt/dt:/opt/dt/config
- *
- * returns: a fully qualified filename. Space for the filename
- * has been allocated off the heap. It is the responsibility
- * of the calling function to dispose of the space.
- **********************************************************************/
- char * qualifyWithFirst
- (
- char * filename,
- char * searchPath
- )
- {
- char * paths = NULL;
- char * savepaths = NULL;
- char * path;
- char * chance;
- FILE * f;
- /* assert that the arguments cannot be NULL */
- if (filename == NULL || searchPath == NULL)
- return NULL;
- paths = strdup(searchPath);
- savepaths = paths;
- while (1) {
- /* if there is a :, zero it */
- if ((path = strchr(paths, ':')) != NULL)
- *path = 0;
- /* allocate space and create the qualified filename */
- chance = (char *)malloc(strlen(paths) + strlen(filename) + 2);
- sprintf(chance,"%s/%s",paths,filename);
- /* see if it is there by opening it for reading */
- if (f = fopen(chance,"r")) {
- /* it's there so close it, .... */
- fclose(f);
- /* ... restore the colon, .... */
- if (path)
- *path = ':';
- /* return the fully qualified filename */
- free(savepaths);
- return chance;
- }
- free(chance);
- /* reached the end of the list of paths */
- if (path == NULL)
- break;
- /* try the next path */
- paths = path + 1;
- }
- free(savepaths);
- return NULL;
- }
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