1 /* 2 * Copyright (c) 1993,1995 Paul Kranenburg 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by Paul Kranenburg. 16 * 4. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 * 30 * $FreeBSD: src/sbin/ldconfig/ldconfig.c,v 1.31.2.3 2001/07/11 23:59:10 obrien Exp $ 31 * $DragonFly: src/sbin/ldconfig/ldconfig.c,v 1.6 2004/11/04 13:14:11 joerg Exp $ 32 */ 33 34 #include <sys/param.h> 35 #include <sys/types.h> 36 #include <sys/stat.h> 37 #include <sys/mman.h> 38 #include <ctype.h> 39 #include <dirent.h> 40 #include <elf-hints.h> 41 #include <err.h> 42 #include <errno.h> 43 #include <fcntl.h> 44 #include <objformat.h> 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include <string.h> 48 #include <unistd.h> 49 50 #include "ldconfig.h" 51 52 #if DEBUG 53 /* test */ 54 #undef _PATH_ELF_HINTS 55 #define _PATH_ELF_HINTS "./ld-elf.so.hints" 56 #endif 57 58 #undef major 59 #undef minor 60 61 static void usage(void); 62 63 int 64 main(int argc, char **argv) 65 { 66 static const char *hints_file; 67 int c, nostd = 0, justread = 0, merge = 0, rescan = 0; 68 69 if (argc > 1 && strcmp(argv[1], "-elf") == 0) { 70 /* skip over legacy -elf arg */ 71 argc--; 72 argv++; 73 } 74 75 hints_file = _PATH_ELF_HINTS; 76 if (argc == 1) 77 rescan = 1; 78 else while((c = getopt(argc, argv, "Rf:imrsv")) != -1) { 79 switch (c) { 80 case 'R': 81 rescan = 1; 82 break; 83 case 'f': 84 hints_file = optarg; 85 break; 86 case 'i': 87 insecure = 1; 88 break; 89 case 'm': 90 merge = 1; 91 break; 92 case 'r': 93 justread = 1; 94 break; 95 case 's': 96 nostd = 1; 97 break; 98 default: 99 usage(); 100 break; 101 } 102 } 103 104 if (justread) 105 list_elf_hints(hints_file); 106 else 107 update_elf_hints(hints_file, argc - optind, argv + optind, 108 merge || rescan); 109 return(0); 110 } 111 112 static void 113 usage(void) 114 { 115 fprintf(stderr, 116 "usage: ldconfig [-elf] [-Rimrs] [-f hints_file] [dir | file ...]\n"); 117 exit(1); 118 } 119