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 */ 32 33 #include <sys/param.h> 34 #include <sys/types.h> 35 #include <sys/stat.h> 36 #include <sys/mman.h> 37 #include <ctype.h> 38 #include <dirent.h> 39 #include <elf-hints.h> 40 #include <err.h> 41 #include <errno.h> 42 #include <fcntl.h> 43 #include <objformat.h> 44 #include <stdio.h> 45 #include <stdlib.h> 46 #include <string.h> 47 #include <unistd.h> 48 49 #include "ldconfig.h" 50 51 #if DEBUG 52 /* test */ 53 #undef _PATH_ELF_HINTS 54 #define _PATH_ELF_HINTS "./ld-elf.so.hints" 55 #endif 56 57 #undef major 58 #undef minor 59 60 static void usage(void); 61 62 int 63 main(int argc, char **argv) 64 { 65 static const char *hints_file; 66 int c, justread = 0, merge = 0, rescan = 0; 67 68 if (argc > 1 && strcmp(argv[1], "-elf") == 0) { 69 /* skip over legacy -elf arg */ 70 argc--; 71 argv++; 72 } 73 74 hints_file = _PATH_ELF_HINTS; 75 if (argc == 1) 76 rescan = 1; 77 else while((c = getopt(argc, argv, "Rf:imrsv")) != -1) { 78 switch (c) { 79 case 'R': 80 rescan = 1; 81 break; 82 case 'f': 83 hints_file = optarg; 84 break; 85 case 'i': 86 insecure = 1; 87 break; 88 case 'm': 89 merge = 1; 90 break; 91 case 'r': 92 justread = 1; 93 break; 94 case 's': 95 /* does nothing */ 96 break; 97 default: 98 usage(); 99 break; 100 } 101 } 102 103 if (justread) 104 list_elf_hints(hints_file); 105 else 106 update_elf_hints(hints_file, argc - optind, argv + optind, 107 merge || rescan); 108 return(0); 109 } 110 111 static void 112 usage(void) 113 { 114 fprintf(stderr, 115 "usage: ldconfig [-elf] [-Rimr] [-f hints_file] [dir | file ...]\n"); 116 exit(1); 117 } 118