1 /* $NetBSD: nlist.c,v 1.19 2000/06/14 06:49:06 cgd 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 1.19 2000/06/14 06:49:06 cgd 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 <assert.h> 53 #include <errno.h> 54 #include <stdio.h> 55 #include <string.h> 56 #include <unistd.h> 57 #include <a.out.h> /* for 'struct nlist' declaration */ 58 59 #if 0 60 #ifdef __weak_alias 61 __weak_alias(nlist,_nlist) 62 #endif 63 #endif 64 65 #include "nlist_private.h" 66 67 static const struct { 68 int (*fdnlist) __P((int, struct nlist *)); 69 } fdnlist_fmts[] = { 70 #ifdef NLIST_AOUT 71 { __fdnlist_aout }, 72 #endif 73 #ifdef NLIST_COFF 74 { __fdnlist_coff }, 75 #endif 76 #ifdef NLIST_ECOFF 77 { __fdnlist_ecoff }, 78 #endif 79 #ifdef NLIST_ELF32 80 { __fdnlist_elf32 }, 81 #endif 82 #ifdef NLIST_ELF64 83 { __fdnlist_elf64 }, 84 #endif 85 }; 86 87 int 88 nlist(name, list) 89 const char *name; 90 struct nlist *list; 91 { 92 int fd, n; 93 94 _DIAGASSERT(name != NULL); 95 _DIAGASSERT(list != NULL); 96 97 fd = open(name, O_RDONLY, 0); 98 if (fd < 0) 99 return (-1); 100 n = __fdnlist(fd, list); 101 (void)close(fd); 102 return (n); 103 } 104 105 int 106 __fdnlist(fd, list) 107 int fd; 108 struct nlist *list; 109 { 110 int i, rv; 111 112 _DIAGASSERT(fd != -1); 113 _DIAGASSERT(list != NULL); 114 115 for (i = 0; i < sizeof(fdnlist_fmts) / sizeof(fdnlist_fmts[0]); i++) 116 if ((rv = (*fdnlist_fmts[i].fdnlist)(fd, list)) != -1) 117 return (rv); 118 return (-1); 119 } 120