1 /* $NetBSD: nlist.c,v 1.12 1997/07/21 14:07:21 jtc Exp $ */ 2 3 /* 4 * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved. 5 * Copyright (c) 1989, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #include <sys/cdefs.h> 38 #if defined(LIBC_SCCS) && !defined(lint) 39 #if 0 40 static char sccsid[] = "@(#)nlist.c 8.1 (Berkeley) 6/4/93"; 41 #else 42 __RCSID("$NetBSD: nlist.c,v 1.12 1997/07/21 14:07:21 jtc Exp $"); 43 #endif 44 #endif /* LIBC_SCCS and not lint */ 45 46 #include "namespace.h" 47 #include <sys/param.h> 48 #include <sys/mman.h> 49 #include <sys/stat.h> 50 #include <sys/file.h> 51 52 #include <errno.h> 53 #include <stdio.h> 54 #include <string.h> 55 #include <unistd.h> 56 #include <a.out.h> /* for 'struct nlist' declaration */ 57 58 #ifdef __weak_alias 59 __weak_alias(nlist,_nlist); 60 #endif 61 62 #include "nlist_private.h" 63 64 static struct { 65 int (*fdnlist) __P((int, struct nlist *)); 66 } fdnlist_fmts[] = { 67 #ifdef NLIST_AOUT 68 { __fdnlist_aout }, 69 #endif 70 #ifdef NLIST_ECOFF 71 { __fdnlist_ecoff }, 72 #endif 73 #ifdef NLIST_ELF32 74 { __fdnlist_elf32 }, 75 #endif 76 #ifdef NLIST_ELF64 77 { __fdnlist_elf64 }, 78 #endif 79 }; 80 81 int 82 nlist(name, list) 83 const char *name; 84 struct nlist *list; 85 { 86 int fd, n; 87 88 fd = open(name, O_RDONLY, 0); 89 if (fd < 0) 90 return (-1); 91 n = __fdnlist(fd, list); 92 (void)close(fd); 93 return (n); 94 } 95 96 int 97 __fdnlist(fd, list) 98 int fd; 99 struct nlist *list; 100 { 101 int i, rv; 102 103 for (i = 0; i < sizeof(fdnlist_fmts) / sizeof(fdnlist_fmts[0]); i++) 104 if ((rv = (*fdnlist_fmts[i].fdnlist)(fd, list)) != -1) 105 return rv; 106 return -1; 107 } 108