diff options
Diffstat (limited to 'gnu/libexec/ld.so/ldd/ldd.c')
| -rw-r--r-- | gnu/libexec/ld.so/ldd/ldd.c | 175 |
1 files changed, 0 insertions, 175 deletions
diff --git a/gnu/libexec/ld.so/ldd/ldd.c b/gnu/libexec/ld.so/ldd/ldd.c deleted file mode 100644 index 78a37bc75c1..00000000000 --- a/gnu/libexec/ld.so/ldd/ldd.c +++ /dev/null @@ -1,175 +0,0 @@ -/* $OpenBSD: ldd.c,v 1.3 2000/09/15 07:13:44 deraadt Exp $ */ - -/* - * Copyright (c) 1996 Per Fogelstrom - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed under OpenBSD by - * Per Fogelstrom. - * 4. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS - * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - */ - - -/* readsoname() adapted from Eric Youngdale's readelf program */ - - -#include <stdio.h> -#include <string.h> -#include <sys/stat.h> -#include <sys/mman.h> -#include <elf_abi.h> - -int readsoneeded(FILE *f, int flag); - -main(argc, argv) - int argc; - char **argv; -{ - FILE *f; - - int lflag = 1; - int i, j; - - if(argc < 2 || argc > 3) { - fprintf(stderr, "usage: %s [-l] file\n", argv[0]); - exit(1); - } - - for(j = 1; j < argc; j ++) { - if(argv[j][0] == '-' && argv[j][1] == 'x') - lflag=0; - else - i = j; - } - - f = fopen(argv[i], "r"); - if(f == 0) { - fprintf(stderr, "%s: can't find '%s'.\n", argv[0], argv[i]); - exit(2); - } - if(!lflag) { - readsoneeded(f, 0); - fclose(f); - } - - else if(lflag && readsoneeded(f, 1)) { - fclose(f); - if (setenv("LD_TRACE_LOADED_OBJECTS", "1", 1) == -1) { - fprintf(stderr, - "%s: can't setenv LD_TRACE_LOADED_OBJECTS\n", - argv[0]); - exit(2); - } - execl(argv[i], NULL); - } - exit(0); -} - -int readsoneeded(FILE *infile, int dyncheck) -{ - Elf32_Ehdr *epnt; - Elf32_Phdr *ppnt; - int i; - int isdynamic = 0; - char *header; - unsigned int dynamic_addr = 0; - unsigned int dynamic_size = 0; - int strtab_val = 0; - int soname_val = 0; - int loadaddr = -1; - int loadbase = 0; - Elf32_Dyn *dpnt; - struct stat st; - char *res = NULL; - - if (fstat(fileno(infile), &st)) - return -1L; - header = mmap(0, st.st_size, PROT_READ, MAP_SHARED, fileno(infile), 0); - if (header == (caddr_t)-1) - return -1; - - epnt = (Elf32_Ehdr *)header; - if ((int)(epnt+1) > (int)(header + st.st_size)) - goto skip; - - ppnt = (Elf32_Phdr *)&header[epnt->e_phoff]; - if ((int)ppnt < (int)header || - (int)(ppnt+epnt->e_phnum) > (int)(header + st.st_size)) - goto skip; - - for(i = 0; i < epnt->e_phnum; i++) - { - if (loadaddr == -1 && ppnt->p_vaddr != 0) - loadaddr = (ppnt->p_vaddr & 0xfffff000) - - (ppnt->p_offset & 0xfffff000); - if(ppnt->p_type == 2) - { - dynamic_addr = ppnt->p_offset; - dynamic_size = ppnt->p_filesz; - }; - ppnt++; - }; - - dpnt = (Elf32_Dyn *) &header[dynamic_addr]; - dynamic_size = dynamic_size / sizeof(Elf32_Dyn); - if ((int)dpnt < (int)header || - (int)(dpnt+dynamic_size) > (int)(header + st.st_size)) - goto skip; - - while(dpnt->d_tag != DT_NULL) - { - if (dpnt->d_tag == DT_STRTAB) - strtab_val = dpnt->d_un.d_val; -#define DT_MIPS_BASE_ADDRESS 0x70000006 /* XXX */ - if (dpnt->d_tag == DT_MIPS_BASE_ADDRESS) - loadbase = dpnt->d_un.d_val; - dpnt++; - }; - - if (!strtab_val) - goto skip; - - dpnt = (Elf32_Dyn *) &header[dynamic_addr]; - while(dpnt->d_tag != DT_NULL) - { - if (dpnt->d_tag == DT_NEEDED) { - isdynamic = 1; - if(dyncheck) - break; - soname_val = dpnt->d_un.d_val; - if (soname_val != 0 && soname_val + strtab_val - loadbase >= 0 && - soname_val + strtab_val - loadbase < st.st_size) - printf("%s\n", header - loadbase + soname_val + strtab_val); - } - dpnt++; - }; - - skip: - munmap(header, st.st_size); - - return isdynamic; -} - |