1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 1993,1995 Paul Kranenburg 5 * 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Paul Kranenburg. 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 const char rcsid[] = 35 "$FreeBSD$"; 36 #endif /* not lint */ 37 38 #include <sys/param.h> 39 #include <sys/types.h> 40 #include <sys/stat.h> 41 #include <sys/mman.h> 42 #include <a.out.h> 43 #include <ctype.h> 44 #include <dirent.h> 45 #include <elf-hints.h> 46 #include <err.h> 47 #include <errno.h> 48 #include <fcntl.h> 49 #include <stdio.h> 50 #include <stdlib.h> 51 #include <string.h> 52 #include <unistd.h> 53 54 #include "ldconfig.h" 55 56 #if DEBUG 57 /* test */ 58 #undef _PATH_ELF_HINTS 59 #define _PATH_ELF_HINTS "./ld-elf.so.hints" 60 #endif 61 62 #define _PATH_LD32_HINTS "/var/run/ld32.so.hints" 63 #define _PATH_ELF32_HINTS "/var/run/ld-elf32.so.hints" 64 #define _PATH_ELFSOFT_HINTS "/var/run/ld-elf-soft.so.hints" 65 66 #undef major 67 #undef minor 68 69 static int verbose; 70 static int nostd; 71 static int justread; 72 static int merge; 73 static int rescan; 74 static const char *hints_file; 75 76 static void usage(void); 77 78 int 79 main(int argc, char **argv) 80 { 81 int c; 82 int is_32 = 0; 83 int is_soft = 0; 84 85 while (argc > 1) { 86 if (strcmp(argv[1], "-aout") == 0) { 87 errx(1, "aout is not supported"); 88 } else if (strcmp(argv[1], "-elf") == 0) { 89 argc--; 90 argv++; 91 } else if (strcmp(argv[1], "-32") == 0) { 92 is_32 = 1; 93 argc--; 94 argv++; 95 } else if (strcmp(argv[1], "-soft") == 0) { 96 is_soft = 1; 97 argc--; 98 argv++; 99 } else { 100 break; 101 } 102 } 103 104 if (is_soft) 105 hints_file = _PATH_ELFSOFT_HINTS; 106 else if (is_32) 107 hints_file = _PATH_ELF32_HINTS; 108 else 109 hints_file = _PATH_ELF_HINTS; 110 if (argc == 1) 111 rescan = 1; 112 else while((c = getopt(argc, argv, "Rf:imrsv")) != -1) { 113 switch (c) { 114 case 'R': 115 rescan = 1; 116 break; 117 case 'f': 118 hints_file = optarg; 119 break; 120 case 'i': 121 insecure = 1; 122 break; 123 case 'm': 124 merge = 1; 125 break; 126 case 'r': 127 justread = 1; 128 break; 129 case 's': 130 nostd = 1; 131 break; 132 case 'v': 133 verbose = 1; 134 break; 135 default: 136 usage(); 137 break; 138 } 139 } 140 141 if (justread) 142 list_elf_hints(hints_file); 143 else 144 update_elf_hints(hints_file, argc - optind, 145 argv + optind, merge || rescan); 146 return 0; 147 } 148 149 static void 150 usage(void) 151 { 152 fprintf(stderr, 153 "usage: ldconfig [-32] [-elf] [-Rimrsv] [-f hints_file] [directory | file ...]\n"); 154 exit(1); 155 } 156