1 /* $NetBSD: nlist.c,v 1.26 2024/10/21 07:08:41 skrll Exp $ */ 2 3 /* 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved. 34 * 35 * Redistribution and use in source and binary forms, with or without 36 * modification, are permitted provided that the following conditions 37 * are met: 38 * 1. Redistributions of source code must retain the above copyright 39 * notice, this list of conditions and the following disclaimer. 40 * 2. Redistributions in binary form must reproduce the above copyright 41 * notice, this list of conditions and the following disclaimer in the 42 * documentation and/or other materials provided with the distribution. 43 * 3. All advertising materials mentioning features or use of this software 44 * must display the following acknowledgement: 45 * This product includes software developed by the University of 46 * California, Berkeley and its contributors. 47 * 4. Neither the name of the University nor the names of its contributors 48 * may be used to endorse or promote products derived from this software 49 * without specific prior written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 52 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 53 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 54 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 55 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 56 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 57 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 58 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 59 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 60 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 61 * SUCH DAMAGE. 62 */ 63 64 #include <sys/cdefs.h> 65 #if defined(LIBC_SCCS) && !defined(lint) 66 #if 0 67 static char sccsid[] = "@(#)nlist.c 8.1 (Berkeley) 6/4/93"; 68 #else 69 __RCSID("$NetBSD: nlist.c,v 1.26 2024/10/21 07:08:41 skrll Exp $"); 70 #endif 71 #endif /* LIBC_SCCS and not lint */ 72 73 #include "namespace.h" 74 #include <sys/param.h> 75 #include <sys/mman.h> 76 #include <sys/stat.h> 77 #include <sys/file.h> 78 79 #include <assert.h> 80 #include <errno.h> 81 #include <stdio.h> 82 #include <string.h> 83 #include <unistd.h> 84 #include <nlist.h> 85 86 #if 0 87 #ifdef __weak_alias 88 __weak_alias(nlist,_nlist) 89 #endif 90 #endif 91 92 #include "nlist_private.h" 93 94 static const struct { 95 int (*fdnlist)(int, struct nlist *); 96 } fdnlist_fmts[] = { 97 #ifdef NLIST_AOUT 98 { __fdnlist_aout }, 99 #endif 100 #ifdef NLIST_COFF 101 { __fdnlist_coff }, 102 #endif 103 #ifdef NLIST_ECOFF 104 { __fdnlist_ecoff }, 105 #endif 106 #ifdef NLIST_ELF32 107 { __fdnlist_elf32 }, 108 #endif 109 #ifdef NLIST_ELF64 110 { __fdnlist_elf64 }, 111 #endif 112 }; 113 114 int 115 nlist(const char *name, struct nlist *list) 116 { 117 int fd, n; 118 119 _DIAGASSERT(name != NULL); 120 _DIAGASSERT(list != NULL); 121 122 fd = open(name, O_RDONLY | O_CLOEXEC, 0); 123 if (fd < 0) 124 return (-1); 125 n = __fdnlist(fd, list); 126 (void)close(fd); 127 return (n); 128 } 129 130 int 131 __fdnlist(int fd, struct nlist *list) 132 { 133 size_t i; 134 int rv; 135 136 _DIAGASSERT(fd != -1); 137 _DIAGASSERT(list != NULL); 138 139 for (i = 0; i < sizeof(fdnlist_fmts) / sizeof(fdnlist_fmts[0]); i++) 140 if ((rv = (*fdnlist_fmts[i].fdnlist)(fd, list)) != -1) 141 return (rv); 142 return (-1); 143 } 144