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exec_ecoff.c revision 1.1 
      1 /*	$NetBSD: exec_ecoff.c,v 1.1 1997/01/22 23:57:19 cgd Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997 Christopher G. Demetriou.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *      This product includes software developed by Christopher G. Demetriou
     17  *	for the NetBSD Project.
     18  * 4. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #ifndef lint
     34 static char *rcsid = "$NetBSD: exec_ecoff.c,v 1.1 1997/01/22 23:57:19 cgd Exp $";
     35 #endif /* not lint */
     36 
     37 #include <sys/types.h>
     38 #include <sys/stat.h>
     39 #include <stdio.h>
     40 #include <string.h>
     41 #include "extern.h"
     42 
     43 #if defined(NLIST_ECOFF)
     44 
     45 #include <sys/exec_ecoff.h>
     46 
     47 int
     48 check_ecoff(int fd, const char *filename)
     49 {
     50 	struct ecoff_exechdr eh;
     51 	struct stat sb;
     52 
     53 	/*
     54 	 * Check the header to maek sure it's an ECOFF file (of the
     55 	 * appropriate size).
     56 	 */
     57 	if (fstat(fd, &sb) == -1)
     58 		return 0;
     59 	if (sb.st_size < sizeof eh)
     60 		return 0;
     61 	if (read(fd, &eh, sizeof eh) != sizeof eh)
     62 		return 0;
     63 
     64 	if (ECOFF_BADMAG(&eh))
     65 		return 0;
     66 
     67 	return 1;
     68 }
     69 
     70 int
     71 hide_ecoff(int fd, const char *filename)
     72 {
     73 
     74 	fprintf(stderr, "%s: ECOFF executables not currently supported\n",
     75 		filename);
     76 	return 1;
     77 }
     78 
     79 #endif /* defined(NLIST_ECOFF) */
     80