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/* $OpenBSD: file.c,v 1.18 2017/01/21 08:33:51 krw Exp $ */ |
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/* |
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* Copyright (c) 1995-96 Mats O Jansson. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include "os.h" |
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#include "common.h" |
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#include "file.h" |
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#include "mopdef.h" |
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#include <stddef.h> |
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#ifndef NOAOUT |
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#if defined(__OpenBSD__) |
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#include <sys/exec.h> |
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#endif |
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#if defined(__bsdi__) |
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#define NOAOUT |
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#endif |
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#if defined(__FreeBSD__) |
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#include <sys/imgact_aout.h> |
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#endif |
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#if !defined(MID_I386) |
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#define MID_I386 134 |
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#endif |
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#if !defined(MID_SPARC) |
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#define MID_SPARC 138 |
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#endif |
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#if !defined(MID_VAX) |
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#define MID_VAX 140 |
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#endif |
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#endif |
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#ifndef NOELF |
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#if defined(__OpenBSD__) |
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#include <sys/exec_elf.h> |
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#else |
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#define NOELF |
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#endif |
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#endif |
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#ifndef NOELF |
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#if !defined(_LP64) |
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#define NOELF64 |
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#endif |
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#endif |
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#ifndef NOAOUT |
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static int getCLBYTES(int); |
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static int getMID(int, int); |
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#endif |
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const char * |
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FileTypeName(mopd_imagetype type) |
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{ |
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switch (type) { |
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case IMAGE_TYPE_MOP: |
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return ("MOP"); |
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case IMAGE_TYPE_ELF32: |
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return ("Elf32"); |
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case IMAGE_TYPE_ELF64: |
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return ("Elf64"); |
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case IMAGE_TYPE_AOUT: |
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return ("a.out"); |
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} |
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abort(); |
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} |
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void |
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mopFilePutLX(u_char *buf, int idx, u_int32_t value, int cnt) |
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{ |
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int i; |
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for (i = 0; i < cnt; i++) { |
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buf[idx+i] = value % 256; |
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value = value / 256; |
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} |
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} |
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void |
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mopFilePutBX(u_char *buf, int idx, u_int32_t value, int cnt) |
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{ |
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int i; |
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for (i = 0; i < cnt; i++) { |
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buf[idx+cnt-1-i] = value % 256; |
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value = value / 256; |
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} |
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} |
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u_int32_t |
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mopFileGetLX(u_char *buf, int idx, int cnt) |
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{ |
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u_int32_t ret = 0; |
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int i; |
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for (i = 0; i < cnt; i++) { |
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int j = idx + cnt - 1 - i; |
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if (j < 0) |
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abort(); |
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ret = ret * 256 + buf[j]; |
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} |
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return(ret); |
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} |
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u_int32_t |
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mopFileGetBX(u_char *buf, int idx, int cnt) |
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{ |
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u_int32_t ret = 0; |
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int i; |
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for (i = 0; i < cnt; i++) { |
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int j = idx + i; |
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if (j < 0) |
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abort(); |
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ret = ret * 256 + buf[j]; |
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} |
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return(ret); |
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} |
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#if !defined(NOELF) && !defined(NOELF64) |
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u_int64_t |
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mopFileGetLXX(u_char *buf, int idx, int cnt) |
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{ |
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u_int64_t ret = 0; |
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int i; |
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for (i = 0; i < cnt; i++) { |
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int j = idx + cnt - 1 - i; |
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if (j < 0) |
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abort(); |
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ret = ret * 256 + buf[j]; |
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} |
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return(ret); |
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} |
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u_int64_t |
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mopFileGetBXX(u_char *buf, int idx, int cnt) |
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{ |
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u_int64_t ret = 0; |
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int i; |
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for (i = 0; i < cnt; i++) { |
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int j = idx + i; |
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if (j < 0) |
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abort(); |
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ret = ret * 256 + buf[j]; |
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} |
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return(ret); |
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} |
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#endif |
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void |
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mopFileSwapX(u_char *buf, int idx, int cnt) |
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{ |
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int i; |
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u_char c; |
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for (i = 0; i < (cnt / 2); i++) { |
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c = buf[idx+i]; |
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buf[idx+i] = buf[idx+cnt-1-i]; |
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buf[idx+cnt-1-i] = c; |
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} |
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} |
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int |
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CheckMopFile(int fd) |
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{ |
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u_char header[512]; |
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short image_type; |
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if (read(fd, header, 512) != 512) |
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return(-1); |
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(void)lseek(fd, (off_t) 0, SEEK_SET); |
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image_type = (u_short)(header[IHD_W_ALIAS+1]*256 + header[IHD_W_ALIAS]); |
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switch(image_type) { |
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case IHD_C_NATIVE: /* Native mode image (VAX) */ |
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case IHD_C_RSX: /* RSX image produced by TKB */ |
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case IHD_C_BPA: /* BASIC plus analog */ |
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case IHD_C_ALIAS: /* Alias */ |
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case IHD_C_CLI: /* Image is CLI */ |
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case IHD_C_PMAX: /* PMAX system image */ |
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case IHD_C_ALPHA: /* ALPHA system image */ |
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break; |
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default: |
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return(-1); |
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} |
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return(0); |
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} |
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int |
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GetMopFileInfo(struct dllist *dl, int info) |
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{ |
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u_char header[512]; |
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short image_type; |
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u_int32_t load_addr, xfr_addr, isd, iha, hbcnt, isize; |
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if (read(dl->ldfd, header, 512) != 512) |
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return(-1); |
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image_type = (u_short)(header[IHD_W_ALIAS+1]*256 + |
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header[IHD_W_ALIAS]); |
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switch (image_type) { |
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case IHD_C_NATIVE: /* Native mode image (VAX) */ |
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isd = (header[IHD_W_SIZE+1]*256 + |
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header[IHD_W_SIZE]); |
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iha = (header[IHD_W_ACTIVOFF+1]*256 + |
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header[IHD_W_ACTIVOFF]); |
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hbcnt = (header[IHD_B_HDRBLKCNT]); |
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isize = (header[isd+ISD_W_PAGCNT+1]*256 + |
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header[isd+ISD_W_PAGCNT]) * 512; |
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load_addr = ((header[isd+ISD_V_VPN+1]*256 + |
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header[isd+ISD_V_VPN]) & ISD_M_VPN) |
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* 512; |
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xfr_addr = (header[iha+IHA_L_TFRADR1+3]*0x1000000 + |
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header[iha+IHA_L_TFRADR1+2]*0x10000 + |
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header[iha+IHA_L_TFRADR1+1]*0x100 + |
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header[iha+IHA_L_TFRADR1]) & 0x7fffffff; |
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if (info == INFO_PRINT) { |
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printf("Native Image (VAX)\n"); |
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printf("Header Block Count: %d\n",hbcnt); |
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printf("Image Size: %08x\n",isize); |
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printf("Load Address: %08x\n",load_addr); |
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printf("Transfer Address: %08x\n",xfr_addr); |
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} |
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break; |
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case IHD_C_RSX: /* RSX image produced by TKB */ |
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hbcnt = header[L_BBLK+1]*256 + header[L_BBLK]; |
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isize = (header[L_BLDZ+1]*256 + header[L_BLDZ]) * 64; |
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load_addr = header[L_BSA+1]*256 + header[L_BSA]; |
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xfr_addr = header[L_BXFR+1]*256 + header[L_BXFR]; |
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if (info == INFO_PRINT) { |
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printf("RSX Image\n"); |
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printf("Header Block Count: %d\n",hbcnt); |
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printf("Image Size: %08x\n",isize); |
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printf("Load Address: %08x\n",load_addr); |
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printf("Transfer Address: %08x\n",xfr_addr); |
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} |
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break; |
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case IHD_C_BPA: /* BASIC plus analog */ |
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if (info == INFO_PRINT) { |
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printf("BASIC-Plus Image, not supported\n"); |
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} |
277 |
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return(-1); |
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break; |
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case IHD_C_ALIAS: /* Alias */ |
280 |
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if (info == INFO_PRINT) { |
281 |
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printf("Alias, not supported\n"); |
282 |
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} |
283 |
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return(-1); |
284 |
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break; |
285 |
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case IHD_C_CLI: /* Image is CLI */ |
286 |
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if (info == INFO_PRINT) { |
287 |
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printf("CLI, not supported\n"); |
288 |
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} |
289 |
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return(-1); |
290 |
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break; |
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case IHD_C_PMAX: /* PMAX system image */ |
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isd = (header[IHD_W_SIZE+1]*256 + |
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header[IHD_W_SIZE]); |
294 |
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iha = (header[IHD_W_ACTIVOFF+1]*256 + |
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header[IHD_W_ACTIVOFF]); |
296 |
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hbcnt = (header[IHD_B_HDRBLKCNT]); |
297 |
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isize = (header[isd+ISD_W_PAGCNT+1]*256 + |
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header[isd+ISD_W_PAGCNT]) * 512; |
299 |
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load_addr = (header[isd+ISD_V_VPN+1]*256 + |
300 |
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header[isd+ISD_V_VPN]) * 512; |
301 |
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xfr_addr = (header[iha+IHA_L_TFRADR1+3]*0x1000000 + |
302 |
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header[iha+IHA_L_TFRADR1+2]*0x10000 + |
303 |
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header[iha+IHA_L_TFRADR1+1]*0x100 + |
304 |
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header[iha+IHA_L_TFRADR1]); |
305 |
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if (info == INFO_PRINT) { |
306 |
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printf("PMAX Image \n"); |
307 |
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printf("Header Block Count: %d\n",hbcnt); |
308 |
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printf("Image Size: %08x\n",isize); |
309 |
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printf("Load Address: %08x\n",load_addr); |
310 |
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printf("Transfer Address: %08x\n",xfr_addr); |
311 |
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} |
312 |
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break; |
313 |
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case IHD_C_ALPHA: /* ALPHA system image */ |
314 |
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isd = (header[EIHD_L_ISDOFF+3]*0x1000000 + |
315 |
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header[EIHD_L_ISDOFF+2]*0x10000 + |
316 |
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header[EIHD_L_ISDOFF+1]*0x100 + |
317 |
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header[EIHD_L_ISDOFF]); |
318 |
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hbcnt = (header[EIHD_L_HDRBLKCNT+3]*0x1000000 + |
319 |
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header[EIHD_L_HDRBLKCNT+2]*0x10000 + |
320 |
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header[EIHD_L_HDRBLKCNT+1]*0x100 + |
321 |
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header[EIHD_L_HDRBLKCNT]); |
322 |
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isize = (header[isd+EISD_L_SECSIZE+3]*0x1000000 + |
323 |
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header[isd+EISD_L_SECSIZE+2]*0x10000 + |
324 |
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header[isd+EISD_L_SECSIZE+1]*0x100 + |
325 |
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header[isd+EISD_L_SECSIZE]); |
326 |
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load_addr = 0; |
327 |
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xfr_addr = 0; |
328 |
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if (info == INFO_PRINT) { |
329 |
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printf("Alpha Image \n"); |
330 |
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printf("Header Block Count: %d\n",hbcnt); |
331 |
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printf("Image Size: %08x\n",isize); |
332 |
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printf("Load Address: %08x\n",load_addr); |
333 |
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printf("Transfer Address: %08x\n",xfr_addr); |
334 |
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} |
335 |
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break; |
336 |
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default: |
337 |
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if (info == INFO_PRINT) { |
338 |
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printf("Unknown Image (%d)\n",image_type); |
339 |
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} |
340 |
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return(-1); |
341 |
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} |
342 |
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343 |
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dl->image_type = IMAGE_TYPE_MOP; |
344 |
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dl->loadaddr = load_addr; |
345 |
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dl->xferaddr = xfr_addr; |
346 |
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347 |
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return(0); |
348 |
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} |
349 |
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|
350 |
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#ifndef NOAOUT |
351 |
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static int |
352 |
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getMID(int old_mid, int new_mid) |
353 |
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{ |
354 |
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int mid; |
355 |
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|
356 |
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mid = old_mid; |
357 |
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358 |
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switch (new_mid) { |
359 |
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case MID_I386: |
360 |
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mid = MID_I386; |
361 |
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break; |
362 |
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#ifdef MID_M68K |
363 |
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case MID_M68K: |
364 |
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mid = MID_M68K; |
365 |
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break; |
366 |
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#endif |
367 |
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#ifdef MID_M68K4K |
368 |
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case MID_M68K4K: |
369 |
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mid = MID_M68K4K; |
370 |
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break; |
371 |
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#endif |
372 |
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#ifdef MID_NS32532 |
373 |
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case MID_NS32532: |
374 |
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mid = MID_NS32532; |
375 |
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break; |
376 |
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#endif |
377 |
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case MID_SPARC: |
378 |
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mid = MID_SPARC; |
379 |
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break; |
380 |
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#ifdef MID_PMAX |
381 |
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case MID_PMAX: |
382 |
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mid = MID_PMAX; |
383 |
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break; |
384 |
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#endif |
385 |
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|
#ifdef MID_VAX |
386 |
|
|
case MID_VAX: |
387 |
|
|
mid = MID_VAX; |
388 |
|
|
break; |
389 |
|
|
#endif |
390 |
|
|
#ifdef MID_ALPHA |
391 |
|
|
case MID_ALPHA: |
392 |
|
|
mid = MID_ALPHA; |
393 |
|
|
break; |
394 |
|
|
#endif |
395 |
|
|
#ifdef MID_MIPS |
396 |
|
|
case MID_MIPS: |
397 |
|
|
mid = MID_MIPS; |
398 |
|
|
break; |
399 |
|
|
#endif |
400 |
|
|
#ifdef MID_ARM6 |
401 |
|
|
case MID_ARM6: |
402 |
|
|
mid = MID_ARM6; |
403 |
|
|
break; |
404 |
|
|
#endif |
405 |
|
|
default: |
406 |
|
|
break; |
407 |
|
|
} |
408 |
|
|
|
409 |
|
|
return(mid); |
410 |
|
|
} |
411 |
|
|
|
412 |
|
|
static int |
413 |
|
|
getCLBYTES(int mid) |
414 |
|
|
{ |
415 |
|
|
int clbytes; |
416 |
|
|
|
417 |
|
|
switch (mid) { |
418 |
|
|
#ifdef MID_VAX |
419 |
|
|
case MID_VAX: |
420 |
|
|
clbytes = 1024; |
421 |
|
|
break; |
422 |
|
|
#endif |
423 |
|
|
#ifdef MID_I386 |
424 |
|
|
case MID_I386: |
425 |
|
|
#endif |
426 |
|
|
#ifdef MID_M68K4K |
427 |
|
|
case MID_M68K4K: |
428 |
|
|
#endif |
429 |
|
|
#ifdef MID_NS32532 |
430 |
|
|
case MID_NS32532: |
431 |
|
|
#endif |
432 |
|
|
#ifdef MID_PMAX |
433 |
|
|
case MID_PMAX: |
434 |
|
|
#endif |
435 |
|
|
#ifdef MID_MIPS |
436 |
|
|
case MID_MIPS: |
437 |
|
|
#endif |
438 |
|
|
#ifdef MID_ARM6 |
439 |
|
|
case MID_ARM6: |
440 |
|
|
#endif |
441 |
|
|
#if defined(MID_I386) || defined(MID_M68K4K) || defined(MID_NS32532) || \ |
442 |
|
|
defined(MID_PMAX) || defined(MID_MIPS) || defined(MID_ARM6) |
443 |
|
|
clbytes = 4096; |
444 |
|
|
break; |
445 |
|
|
#endif |
446 |
|
|
#ifdef MID_M68K |
447 |
|
|
case MID_M68K: |
448 |
|
|
#endif |
449 |
|
|
#ifdef MID_ALPHA |
450 |
|
|
case MID_ALPHA: |
451 |
|
|
#endif |
452 |
|
|
#ifdef MID_SPARC |
453 |
|
|
case MID_SPARC: |
454 |
|
|
#endif |
455 |
|
|
#if defined(MID_M68K) || defined(MID_ALPHA) || defined(MID_SPARC) |
456 |
|
|
clbytes = 8192; |
457 |
|
|
break; |
458 |
|
|
#endif |
459 |
|
|
default: |
460 |
|
|
clbytes = 0; |
461 |
|
|
} |
462 |
|
|
|
463 |
|
|
return(clbytes); |
464 |
|
|
} |
465 |
|
|
#endif |
466 |
|
|
|
467 |
|
|
int |
468 |
|
|
CheckElfFile(int fd) |
469 |
|
|
{ |
470 |
|
|
#ifdef NOELF |
471 |
|
|
return(-1); |
472 |
|
|
#else |
473 |
|
|
Elf32_Ehdr ehdr; |
474 |
|
|
|
475 |
|
|
(void)lseek(fd, (off_t) 0, SEEK_SET); |
476 |
|
|
|
477 |
|
|
if (read(fd, (char *)&ehdr, sizeof(ehdr)) != sizeof(ehdr)) |
478 |
|
|
return(-1); |
479 |
|
|
|
480 |
|
|
if (ehdr.e_ident[0] != ELFMAG0 || |
481 |
|
|
ehdr.e_ident[1] != ELFMAG1 || |
482 |
|
|
ehdr.e_ident[2] != ELFMAG2 || |
483 |
|
|
ehdr.e_ident[3] != ELFMAG3) |
484 |
|
|
return(-1); |
485 |
|
|
|
486 |
|
|
/* Must be Elf32 or Elf64... */ |
487 |
|
|
if (ehdr.e_ident[EI_CLASS] != ELFCLASS32 && |
488 |
|
|
ehdr.e_ident[EI_CLASS] != ELFCLASS64) |
489 |
|
|
return(-1); |
490 |
|
|
|
491 |
|
|
return(0); |
492 |
|
|
#endif /* NOELF */ |
493 |
|
|
} |
494 |
|
|
|
495 |
|
|
int |
496 |
|
|
GetElf32FileInfo(struct dllist *dl, int info) |
497 |
|
|
{ |
498 |
|
|
#ifdef NOELF |
499 |
|
|
return(-1); |
500 |
|
|
#else |
501 |
|
|
Elf32_Ehdr ehdr; |
502 |
|
|
Elf32_Phdr phdr; |
503 |
|
|
uint32_t e_machine, e_entry; |
504 |
|
|
uint32_t e_phoff, e_phentsize, e_phnum; |
505 |
|
|
int ei_data, i; |
506 |
|
|
|
507 |
|
|
(void)lseek(dl->ldfd, (off_t) 0, SEEK_SET); |
508 |
|
|
|
509 |
|
|
if (read(dl->ldfd, (char *)&ehdr, sizeof(ehdr)) != sizeof(ehdr)) |
510 |
|
|
return(-1); |
511 |
|
|
|
512 |
|
|
if (ehdr.e_ident[0] != ELFMAG0 || |
513 |
|
|
ehdr.e_ident[1] != ELFMAG1 || |
514 |
|
|
ehdr.e_ident[2] != ELFMAG2 || |
515 |
|
|
ehdr.e_ident[3] != ELFMAG3) |
516 |
|
|
return(-1); |
517 |
|
|
|
518 |
|
|
/* Must be Elf32... */ |
519 |
|
|
if (ehdr.e_ident[EI_CLASS] != ELFCLASS32) |
520 |
|
|
return(-1); |
521 |
|
|
|
522 |
|
|
ei_data = ehdr.e_ident[EI_DATA]; |
523 |
|
|
|
524 |
|
|
switch (ei_data) { |
525 |
|
|
case ELFDATA2LSB: |
526 |
|
|
e_machine = mopFileGetLX((u_char *) &ehdr, |
527 |
|
|
offsetof(Elf32_Ehdr, e_machine), |
528 |
|
|
sizeof(ehdr.e_machine)); |
529 |
|
|
e_entry = mopFileGetLX((u_char *) &ehdr, |
530 |
|
|
offsetof(Elf32_Ehdr, e_entry), |
531 |
|
|
sizeof(ehdr.e_entry)); |
532 |
|
|
|
533 |
|
|
e_phoff = mopFileGetLX((u_char *) &ehdr, |
534 |
|
|
offsetof(Elf32_Ehdr, e_phoff), |
535 |
|
|
sizeof(ehdr.e_phoff)); |
536 |
|
|
e_phentsize = mopFileGetLX((u_char *) &ehdr, |
537 |
|
|
offsetof(Elf32_Ehdr, e_phentsize), |
538 |
|
|
sizeof(ehdr.e_phentsize)); |
539 |
|
|
e_phnum = mopFileGetLX((u_char *) &ehdr, |
540 |
|
|
offsetof(Elf32_Ehdr, e_phnum), |
541 |
|
|
sizeof(ehdr.e_phnum)); |
542 |
|
|
break; |
543 |
|
|
|
544 |
|
|
case ELFDATA2MSB: |
545 |
|
|
e_machine = mopFileGetBX((u_char *) &ehdr, |
546 |
|
|
offsetof(Elf32_Ehdr, e_machine), |
547 |
|
|
sizeof(ehdr.e_machine)); |
548 |
|
|
e_entry = mopFileGetBX((u_char *) &ehdr, |
549 |
|
|
offsetof(Elf32_Ehdr, e_entry), |
550 |
|
|
sizeof(ehdr.e_entry)); |
551 |
|
|
|
552 |
|
|
e_phoff = mopFileGetBX((u_char *) &ehdr, |
553 |
|
|
offsetof(Elf32_Ehdr, e_phoff), |
554 |
|
|
sizeof(ehdr.e_phoff)); |
555 |
|
|
e_phentsize = mopFileGetBX((u_char *) &ehdr, |
556 |
|
|
offsetof(Elf32_Ehdr, e_phentsize), |
557 |
|
|
sizeof(ehdr.e_phentsize)); |
558 |
|
|
e_phnum = mopFileGetBX((u_char *) &ehdr, |
559 |
|
|
offsetof(Elf32_Ehdr, e_phnum), |
560 |
|
|
sizeof(ehdr.e_phnum)); |
561 |
|
|
break; |
562 |
|
|
|
563 |
|
|
default: |
564 |
|
|
return(-1); |
565 |
|
|
} |
566 |
|
|
|
567 |
|
|
if (e_phnum > SEC_MAX) |
568 |
|
|
return(-1); |
569 |
|
|
dl->e_nsec = e_phnum; |
570 |
|
|
for (i = 0; i < dl->e_nsec; i++) { |
571 |
|
|
if (lseek(dl->ldfd, (off_t) e_phoff + (i * e_phentsize), |
572 |
|
|
SEEK_SET) == (off_t) -1) |
573 |
|
|
return(-1); |
574 |
|
|
if (read(dl->ldfd, (char *) &phdr, sizeof(phdr)) != |
575 |
|
|
sizeof(phdr)) |
576 |
|
|
return(-1); |
577 |
|
|
|
578 |
|
|
switch (ei_data) { |
579 |
|
|
case ELFDATA2LSB: |
580 |
|
|
dl->e_sections[i].s_foff = |
581 |
|
|
mopFileGetLX((u_char *) &phdr, |
582 |
|
|
offsetof(Elf32_Phdr, p_offset), |
583 |
|
|
sizeof(phdr.p_offset)); |
584 |
|
|
dl->e_sections[i].s_vaddr = |
585 |
|
|
mopFileGetLX((u_char *) &phdr, |
586 |
|
|
offsetof(Elf32_Phdr, p_vaddr), |
587 |
|
|
sizeof(phdr.p_vaddr)); |
588 |
|
|
dl->e_sections[i].s_fsize = |
589 |
|
|
mopFileGetLX((u_char *) &phdr, |
590 |
|
|
offsetof(Elf32_Phdr, p_filesz), |
591 |
|
|
sizeof(phdr.p_filesz)); |
592 |
|
|
dl->e_sections[i].s_msize = |
593 |
|
|
mopFileGetLX((u_char *) &phdr, |
594 |
|
|
offsetof(Elf32_Phdr, p_memsz), |
595 |
|
|
sizeof(phdr.p_memsz)); |
596 |
|
|
break; |
597 |
|
|
|
598 |
|
|
case ELFDATA2MSB: |
599 |
|
|
dl->e_sections[i].s_foff = |
600 |
|
|
mopFileGetBX((u_char *) &phdr, |
601 |
|
|
offsetof(Elf32_Phdr, p_offset), |
602 |
|
|
sizeof(phdr.p_offset)); |
603 |
|
|
dl->e_sections[i].s_vaddr = |
604 |
|
|
mopFileGetBX((u_char *) &phdr, |
605 |
|
|
offsetof(Elf32_Phdr, p_vaddr), |
606 |
|
|
sizeof(phdr.p_vaddr)); |
607 |
|
|
dl->e_sections[i].s_fsize = |
608 |
|
|
mopFileGetBX((u_char *) &phdr, |
609 |
|
|
offsetof(Elf32_Phdr, p_filesz), |
610 |
|
|
sizeof(phdr.p_filesz)); |
611 |
|
|
dl->e_sections[i].s_msize = |
612 |
|
|
mopFileGetBX((u_char *) &phdr, |
613 |
|
|
offsetof(Elf32_Phdr, p_memsz), |
614 |
|
|
sizeof(phdr.p_memsz)); |
615 |
|
|
break; |
616 |
|
|
|
617 |
|
|
default: |
618 |
|
|
return(-1); |
619 |
|
|
} |
620 |
|
|
} |
621 |
|
|
/* |
622 |
|
|
* In addition to padding between segments, this also |
623 |
|
|
* takes care of memsz > filesz. |
624 |
|
|
*/ |
625 |
|
|
for (i = 0; i < dl->e_nsec - 1; i++) { |
626 |
|
|
dl->e_sections[i].s_pad = |
627 |
|
|
dl->e_sections[i + 1].s_vaddr - |
628 |
|
|
(dl->e_sections[i].s_vaddr + dl->e_sections[i].s_fsize); |
629 |
|
|
} |
630 |
|
|
dl->e_sections[dl->e_nsec - 1].s_pad = |
631 |
|
|
dl->e_sections[dl->e_nsec - 1].s_msize - |
632 |
|
|
dl->e_sections[dl->e_nsec - 1].s_fsize; |
633 |
|
|
/* |
634 |
|
|
* Now compute the logical offsets for each section. |
635 |
|
|
*/ |
636 |
|
|
dl->e_sections[0].s_loff = 0; |
637 |
|
|
for (i = 1; i < dl->e_nsec; i++) { |
638 |
|
|
dl->e_sections[i].s_loff = |
639 |
|
|
dl->e_sections[i - 1].s_loff + |
640 |
|
|
dl->e_sections[i - 1].s_fsize + |
641 |
|
|
dl->e_sections[i - 1].s_pad; |
642 |
|
|
} |
643 |
|
|
|
644 |
|
|
dl->image_type = IMAGE_TYPE_ELF32; |
645 |
|
|
dl->loadaddr = 0; |
646 |
|
|
#if 0 |
647 |
|
|
dl->xferaddr = e_entry; /* will relocate itself if necessary */ |
648 |
|
|
#else |
649 |
|
|
dl->xferaddr = e_entry - dl->e_sections[0].s_vaddr; |
650 |
|
|
#endif |
651 |
|
|
|
652 |
|
|
/* Print info about the image. */ |
653 |
|
|
if (info == INFO_PRINT) { |
654 |
|
|
printf("Elf32 image ("); |
655 |
|
|
switch (e_machine) { |
656 |
|
|
#ifdef EM_VAX |
657 |
|
|
case EM_VAX: |
658 |
|
|
printf("VAX"); |
659 |
|
|
break; |
660 |
|
|
#endif |
661 |
|
|
default: |
662 |
|
|
printf("machine %d", e_machine); |
663 |
|
|
break; |
664 |
|
|
} |
665 |
|
|
printf(")\n"); |
666 |
|
|
printf("Transfer Address: %08x\n", dl->xferaddr); |
667 |
|
|
printf("Program Sections: %d\n", dl->e_nsec); |
668 |
|
|
for (i = 0; i < dl->e_nsec; i++) { |
669 |
|
|
printf(" S%d File Size: %08x\n", i, |
670 |
|
|
dl->e_sections[i].s_fsize); |
671 |
|
|
printf(" S%d Pad Size: %08x\n", i, |
672 |
|
|
dl->e_sections[i].s_pad); |
673 |
|
|
} |
674 |
|
|
} |
675 |
|
|
|
676 |
|
|
dl->e_machine = e_machine; |
677 |
|
|
|
678 |
|
|
dl->e_curpos = 0; |
679 |
|
|
dl->e_cursec = 0; |
680 |
|
|
|
681 |
|
|
return(0); |
682 |
|
|
#endif /* NOELF */ |
683 |
|
|
} |
684 |
|
|
|
685 |
|
|
int |
686 |
|
|
GetElf64FileInfo(struct dllist *dl, int info) |
687 |
|
|
{ |
688 |
|
|
#if defined(NOELF) || defined(NOELF64) |
689 |
|
|
return(-1); |
690 |
|
|
#else |
691 |
|
|
Elf64_Ehdr ehdr; |
692 |
|
|
Elf64_Phdr phdr; |
693 |
|
|
uint32_t e_machine; |
694 |
|
|
uint32_t e_phentsize, e_phnum; |
695 |
|
|
uint64_t e_entry, e_phoff; |
696 |
|
|
int ei_data, i; |
697 |
|
|
|
698 |
|
|
(void)lseek(dl->ldfd, (off_t) 0, SEEK_SET); |
699 |
|
|
|
700 |
|
|
if (read(dl->ldfd, (char *)&ehdr, sizeof(ehdr)) != sizeof(ehdr)) |
701 |
|
|
return(-1); |
702 |
|
|
|
703 |
|
|
if (ehdr.e_ident[0] != ELFMAG0 || |
704 |
|
|
ehdr.e_ident[1] != ELFMAG1 || |
705 |
|
|
ehdr.e_ident[2] != ELFMAG2 || |
706 |
|
|
ehdr.e_ident[3] != ELFMAG3) |
707 |
|
|
return(-1); |
708 |
|
|
|
709 |
|
|
/* Must be Elf64... */ |
710 |
|
|
if (ehdr.e_ident[EI_CLASS] != ELFCLASS64) |
711 |
|
|
return(-1); |
712 |
|
|
|
713 |
|
|
ei_data = ehdr.e_ident[EI_DATA]; |
714 |
|
|
|
715 |
|
|
switch (ei_data) { |
716 |
|
|
case ELFDATA2LSB: |
717 |
|
|
e_machine = mopFileGetLX((u_char *) &ehdr, |
718 |
|
|
offsetof(Elf64_Ehdr, e_machine), |
719 |
|
|
sizeof(ehdr.e_machine)); |
720 |
|
|
e_entry = mopFileGetLXX((u_char *) &ehdr, |
721 |
|
|
offsetof(Elf64_Ehdr, e_entry), |
722 |
|
|
sizeof(ehdr.e_entry)); |
723 |
|
|
|
724 |
|
|
e_phoff = mopFileGetLXX((u_char *) &ehdr, |
725 |
|
|
offsetof(Elf64_Ehdr, e_phoff), |
726 |
|
|
sizeof(ehdr.e_phoff)); |
727 |
|
|
e_phentsize = mopFileGetLX((u_char *) &ehdr, |
728 |
|
|
offsetof(Elf64_Ehdr, e_phentsize), |
729 |
|
|
sizeof(ehdr.e_phentsize)); |
730 |
|
|
e_phnum = mopFileGetLX((u_char *) &ehdr, |
731 |
|
|
offsetof(Elf64_Ehdr, e_phnum), |
732 |
|
|
sizeof(ehdr.e_phnum)); |
733 |
|
|
break; |
734 |
|
|
|
735 |
|
|
case ELFDATA2MSB: |
736 |
|
|
e_machine = mopFileGetBX((u_char *) &ehdr, |
737 |
|
|
offsetof(Elf64_Ehdr, e_machine), |
738 |
|
|
sizeof(ehdr.e_machine)); |
739 |
|
|
e_entry = mopFileGetBXX((u_char *) &ehdr, |
740 |
|
|
offsetof(Elf64_Ehdr, e_entry), |
741 |
|
|
sizeof(ehdr.e_entry)); |
742 |
|
|
|
743 |
|
|
e_phoff = mopFileGetBXX((u_char *) &ehdr, |
744 |
|
|
offsetof(Elf64_Ehdr, e_phoff), |
745 |
|
|
sizeof(ehdr.e_phoff)); |
746 |
|
|
e_phentsize = mopFileGetBX((u_char *) &ehdr, |
747 |
|
|
offsetof(Elf64_Ehdr, e_phentsize), |
748 |
|
|
sizeof(ehdr.e_phentsize)); |
749 |
|
|
e_phnum = mopFileGetBX((u_char *) &ehdr, |
750 |
|
|
offsetof(Elf64_Ehdr, e_phnum), |
751 |
|
|
sizeof(ehdr.e_phnum)); |
752 |
|
|
break; |
753 |
|
|
|
754 |
|
|
default: |
755 |
|
|
return(-1); |
756 |
|
|
} |
757 |
|
|
|
758 |
|
|
if (e_phnum > SEC_MAX) |
759 |
|
|
return(-1); |
760 |
|
|
dl->e_nsec = e_phnum; |
761 |
|
|
for (i = 0; i < dl->e_nsec; i++) { |
762 |
|
|
if (lseek(dl->ldfd, (off_t) e_phoff + (i * e_phentsize), |
763 |
|
|
SEEK_SET) == (off_t) -1) |
764 |
|
|
return(-1); |
765 |
|
|
if (read(dl->ldfd, (char *) &phdr, sizeof(phdr)) != |
766 |
|
|
sizeof(phdr)) |
767 |
|
|
return(-1); |
768 |
|
|
|
769 |
|
|
switch (ei_data) { |
770 |
|
|
case ELFDATA2LSB: |
771 |
|
|
dl->e_sections[i].s_foff = |
772 |
|
|
mopFileGetLX((u_char *) &phdr, |
773 |
|
|
offsetof(Elf64_Phdr, p_offset), |
774 |
|
|
sizeof(phdr.p_offset)); |
775 |
|
|
dl->e_sections[i].s_vaddr = |
776 |
|
|
mopFileGetLX((u_char *) &phdr, |
777 |
|
|
offsetof(Elf64_Phdr, p_vaddr), |
778 |
|
|
sizeof(phdr.p_vaddr)); |
779 |
|
|
dl->e_sections[i].s_fsize = |
780 |
|
|
mopFileGetLX((u_char *) &phdr, |
781 |
|
|
offsetof(Elf64_Phdr, p_filesz), |
782 |
|
|
sizeof(phdr.p_filesz)); |
783 |
|
|
dl->e_sections[i].s_msize = |
784 |
|
|
mopFileGetLX((u_char *) &phdr, |
785 |
|
|
offsetof(Elf64_Phdr, p_memsz), |
786 |
|
|
sizeof(phdr.p_memsz)); |
787 |
|
|
break; |
788 |
|
|
|
789 |
|
|
case ELFDATA2MSB: |
790 |
|
|
dl->e_sections[i].s_foff = |
791 |
|
|
mopFileGetBX((u_char *) &phdr, |
792 |
|
|
offsetof(Elf64_Phdr, p_offset), |
793 |
|
|
sizeof(phdr.p_offset)); |
794 |
|
|
dl->e_sections[i].s_vaddr = |
795 |
|
|
mopFileGetBX((u_char *) &phdr, |
796 |
|
|
offsetof(Elf64_Phdr, p_vaddr), |
797 |
|
|
sizeof(phdr.p_vaddr)); |
798 |
|
|
dl->e_sections[i].s_fsize = |
799 |
|
|
mopFileGetBX((u_char *) &phdr, |
800 |
|
|
offsetof(Elf64_Phdr, p_filesz), |
801 |
|
|
sizeof(phdr.p_filesz)); |
802 |
|
|
dl->e_sections[i].s_msize = |
803 |
|
|
mopFileGetBX((u_char *) &phdr, |
804 |
|
|
offsetof(Elf64_Phdr, p_memsz), |
805 |
|
|
sizeof(phdr.p_memsz)); |
806 |
|
|
break; |
807 |
|
|
|
808 |
|
|
default: |
809 |
|
|
return(-1); |
810 |
|
|
} |
811 |
|
|
} |
812 |
|
|
/* |
813 |
|
|
* In addition to padding between segments, this also |
814 |
|
|
* takes care of memsz > filesz. |
815 |
|
|
*/ |
816 |
|
|
for (i = 0; i < dl->e_nsec - 1; i++) { |
817 |
|
|
dl->e_sections[i].s_pad = |
818 |
|
|
dl->e_sections[i + 1].s_vaddr - |
819 |
|
|
(dl->e_sections[i].s_vaddr + dl->e_sections[i].s_fsize); |
820 |
|
|
} |
821 |
|
|
dl->e_sections[dl->e_nsec - 1].s_pad = |
822 |
|
|
dl->e_sections[dl->e_nsec - 1].s_msize - |
823 |
|
|
dl->e_sections[dl->e_nsec - 1].s_fsize; |
824 |
|
|
/* |
825 |
|
|
* Now compute the logical offsets for each section. |
826 |
|
|
*/ |
827 |
|
|
dl->e_sections[0].s_loff = 0; |
828 |
|
|
for (i = 1; i < dl->e_nsec; i++) { |
829 |
|
|
dl->e_sections[i].s_loff = |
830 |
|
|
dl->e_sections[i - 1].s_loff + |
831 |
|
|
dl->e_sections[i - 1].s_fsize + |
832 |
|
|
dl->e_sections[i - 1].s_pad; |
833 |
|
|
} |
834 |
|
|
|
835 |
|
|
dl->image_type = IMAGE_TYPE_ELF64; |
836 |
|
|
dl->loadaddr = 0; |
837 |
|
|
#if 0 |
838 |
|
|
dl->xferaddr = e_entry; /* will relocate itself if necessary */ |
839 |
|
|
#else |
840 |
|
|
dl->xferaddr = e_entry - dl->e_sections[0].s_vaddr; |
841 |
|
|
#endif |
842 |
|
|
|
843 |
|
|
/* Print info about the image. */ |
844 |
|
|
if (info == INFO_PRINT) { |
845 |
|
|
printf("Elf64 image ("); |
846 |
|
|
switch (e_machine) { |
847 |
|
|
#ifdef EM_ALPHA |
848 |
|
|
case EM_ALPHA: |
849 |
|
|
#endif |
850 |
|
|
#ifdef EM_ALPHA_EXP |
851 |
|
|
case EM_ALPHA_EXP: |
852 |
|
|
#endif |
853 |
|
|
#if defined(EM_ALPHA) || defined(EM_ALPHA_EXP) |
854 |
|
|
printf("ALPHA"); |
855 |
|
|
break; |
856 |
|
|
#endif |
857 |
|
|
default: |
858 |
|
|
printf("machine %d", e_machine); |
859 |
|
|
break; |
860 |
|
|
} |
861 |
|
|
printf(")\n"); |
862 |
|
|
printf("Transfer Address: %08x\n", dl->xferaddr); |
863 |
|
|
printf("Program Sections: %d\n", dl->e_nsec); |
864 |
|
|
for (i = 0; i < dl->e_nsec; i++) { |
865 |
|
|
printf(" S%d File Size: %08x\n", i, |
866 |
|
|
dl->e_sections[i].s_fsize); |
867 |
|
|
printf(" S%d Pad Size: %08x\n", i, |
868 |
|
|
dl->e_sections[i].s_pad); |
869 |
|
|
} |
870 |
|
|
} |
871 |
|
|
|
872 |
|
|
dl->e_machine = e_machine; |
873 |
|
|
|
874 |
|
|
dl->e_curpos = 0; |
875 |
|
|
dl->e_cursec = 0; |
876 |
|
|
|
877 |
|
|
return(0); |
878 |
|
|
#endif /* NOELF || NOELF64 */ |
879 |
|
|
} |
880 |
|
|
|
881 |
|
|
int |
882 |
|
|
CheckAOutFile(int fd) |
883 |
|
|
{ |
884 |
|
|
#ifdef NOAOUT |
885 |
|
|
return(-1); |
886 |
|
|
#else |
887 |
|
|
struct exec ex, ex_swap; |
888 |
|
|
int mid = -1; |
889 |
|
|
|
890 |
|
|
if (read(fd, (char *)&ex, sizeof(ex)) != sizeof(ex)) |
891 |
|
|
return(-1); |
892 |
|
|
|
893 |
|
|
(void)lseek(fd, (off_t) 0, SEEK_SET); |
894 |
|
|
|
895 |
|
|
if (read(fd, (char *)&ex_swap, sizeof(ex_swap)) != sizeof(ex_swap)) |
896 |
|
|
return(-1); |
897 |
|
|
|
898 |
|
|
(void)lseek(fd, (off_t) 0, SEEK_SET); |
899 |
|
|
|
900 |
|
|
mid = getMID(mid, N_GETMID (ex)); |
901 |
|
|
|
902 |
|
|
if (mid == -1) { |
903 |
|
|
mid = getMID(mid, N_GETMID (ex_swap)); |
904 |
|
|
} |
905 |
|
|
|
906 |
|
|
if (mid != -1) { |
907 |
|
|
return(0); |
908 |
|
|
} else { |
909 |
|
|
return(-1); |
910 |
|
|
} |
911 |
|
|
#endif /* NOAOUT */ |
912 |
|
|
} |
913 |
|
|
|
914 |
|
|
int |
915 |
|
|
GetAOutFileInfo(struct dllist *dl, int info) |
916 |
|
|
{ |
917 |
|
|
#ifdef NOAOUT |
918 |
|
|
return(-1); |
919 |
|
|
#else |
920 |
|
|
struct exec ex, ex_swap; |
921 |
|
|
u_int32_t mid = -1; |
922 |
|
|
u_int32_t magic, clbytes, clofset; |
923 |
|
|
|
924 |
|
|
if (read(dl->ldfd, (char *)&ex, sizeof(ex)) != sizeof(ex)) |
925 |
|
|
return(-1); |
926 |
|
|
|
927 |
|
|
(void)lseek(dl->ldfd, (off_t) 0, SEEK_SET); |
928 |
|
|
|
929 |
|
|
if (read(dl->ldfd, (char *)&ex_swap, |
930 |
|
|
sizeof(ex_swap)) != sizeof(ex_swap)) |
931 |
|
|
return(-1); |
932 |
|
|
|
933 |
|
|
mopFileSwapX((u_char *)&ex_swap, 0, 4); |
934 |
|
|
|
935 |
|
|
mid = getMID(mid, N_GETMID (ex)); |
936 |
|
|
|
937 |
|
|
if (mid == (uint32_t)-1) { |
938 |
|
|
mid = getMID(mid, N_GETMID (ex_swap)); |
939 |
|
|
if (mid != (uint32_t)-1) { |
940 |
|
|
mopFileSwapX((u_char *)&ex, 0, 4); |
941 |
|
|
} |
942 |
|
|
} |
943 |
|
|
|
944 |
|
|
if (mid == (uint32_t)-1) { |
945 |
|
|
return(-1); |
946 |
|
|
} |
947 |
|
|
|
948 |
|
|
if (N_BADMAG (ex)) { |
949 |
|
|
return(-1); |
950 |
|
|
} |
951 |
|
|
|
952 |
|
|
switch (mid) { |
953 |
|
|
case MID_I386: |
954 |
|
|
#ifdef MID_NS32532 |
955 |
|
|
case MID_NS32532: |
956 |
|
|
#endif |
957 |
|
|
#ifdef MID_PMAX |
958 |
|
|
case MID_PMAX: |
959 |
|
|
#endif |
960 |
|
|
#ifdef MID_VAX |
961 |
|
|
case MID_VAX: |
962 |
|
|
#endif |
963 |
|
|
#ifdef MID_ALPHA |
964 |
|
|
case MID_ALPHA: |
965 |
|
|
#endif |
966 |
|
|
#ifdef MID_ARM6 |
967 |
|
|
case MID_ARM6: |
968 |
|
|
#endif |
969 |
|
|
ex.a_text = mopFileGetLX((u_char *)&ex_swap, 4, 4); |
970 |
|
|
ex.a_data = mopFileGetLX((u_char *)&ex_swap, 8, 4); |
971 |
|
|
ex.a_bss = mopFileGetLX((u_char *)&ex_swap, 12, 4); |
972 |
|
|
ex.a_syms = mopFileGetLX((u_char *)&ex_swap, 16, 4); |
973 |
|
|
ex.a_entry = mopFileGetLX((u_char *)&ex_swap, 20, 4); |
974 |
|
|
ex.a_trsize= mopFileGetLX((u_char *)&ex_swap, 24, 4); |
975 |
|
|
ex.a_drsize= mopFileGetLX((u_char *)&ex_swap, 28, 4); |
976 |
|
|
break; |
977 |
|
|
#ifdef MID_M68K |
978 |
|
|
case MID_M68K: |
979 |
|
|
#endif |
980 |
|
|
#ifdef MID_M68K4K |
981 |
|
|
case MID_M68K4K: |
982 |
|
|
#endif |
983 |
|
|
case MID_SPARC: |
984 |
|
|
#ifdef MID_MIPS |
985 |
|
|
case MID_MIPS: |
986 |
|
|
#endif |
987 |
|
|
ex.a_text = mopFileGetBX((u_char *)&ex_swap, 4, 4); |
988 |
|
|
ex.a_data = mopFileGetBX((u_char *)&ex_swap, 8, 4); |
989 |
|
|
ex.a_bss = mopFileGetBX((u_char *)&ex_swap, 12, 4); |
990 |
|
|
ex.a_syms = mopFileGetBX((u_char *)&ex_swap, 16, 4); |
991 |
|
|
ex.a_entry = mopFileGetBX((u_char *)&ex_swap, 20, 4); |
992 |
|
|
ex.a_trsize= mopFileGetBX((u_char *)&ex_swap, 24, 4); |
993 |
|
|
ex.a_drsize= mopFileGetBX((u_char *)&ex_swap, 28, 4); |
994 |
|
|
break; |
995 |
|
|
default: |
996 |
|
|
break; |
997 |
|
|
} |
998 |
|
|
|
999 |
|
|
if (info == INFO_PRINT) { |
1000 |
|
|
printf("a.out image ("); |
1001 |
|
|
switch (N_GETMID (ex)) { |
1002 |
|
|
case MID_I386: |
1003 |
|
|
printf("i386"); |
1004 |
|
|
break; |
1005 |
|
|
#ifdef MID_M68K |
1006 |
|
|
case MID_M68K: |
1007 |
|
|
printf("m68k"); |
1008 |
|
|
break; |
1009 |
|
|
#endif |
1010 |
|
|
#ifdef MID_M68K4K |
1011 |
|
|
case MID_M68K4K: |
1012 |
|
|
printf("m68k 4k"); |
1013 |
|
|
break; |
1014 |
|
|
#endif |
1015 |
|
|
#ifdef MID_NS32532 |
1016 |
|
|
case MID_NS32532: |
1017 |
|
|
printf("pc532"); |
1018 |
|
|
break; |
1019 |
|
|
#endif |
1020 |
|
|
case MID_SPARC: |
1021 |
|
|
printf("sparc"); |
1022 |
|
|
break; |
1023 |
|
|
#ifdef MID_PMAX |
1024 |
|
|
case MID_PMAX: |
1025 |
|
|
printf("pmax"); |
1026 |
|
|
break; |
1027 |
|
|
#endif |
1028 |
|
|
#ifdef MID_VAX |
1029 |
|
|
case MID_VAX: |
1030 |
|
|
printf("vax"); |
1031 |
|
|
break; |
1032 |
|
|
#endif |
1033 |
|
|
#ifdef MID_ALPHA |
1034 |
|
|
case MID_ALPHA: |
1035 |
|
|
printf("alpha"); |
1036 |
|
|
break; |
1037 |
|
|
#endif |
1038 |
|
|
#ifdef MID_MIPS |
1039 |
|
|
case MID_MIPS: |
1040 |
|
|
printf("mips"); |
1041 |
|
|
break; |
1042 |
|
|
#endif |
1043 |
|
|
#ifdef MID_ARM6 |
1044 |
|
|
case MID_ARM6: |
1045 |
|
|
printf("arm32"); |
1046 |
|
|
break; |
1047 |
|
|
#endif |
1048 |
|
|
default: |
1049 |
|
|
break; |
1050 |
|
|
} |
1051 |
|
|
printf(") Magic: "); |
1052 |
|
|
switch (N_GETMAGIC (ex)) { |
1053 |
|
|
case OMAGIC: |
1054 |
|
|
printf("OMAGIC"); |
1055 |
|
|
break; |
1056 |
|
|
case NMAGIC: |
1057 |
|
|
printf("NMAGIC"); |
1058 |
|
|
break; |
1059 |
|
|
case ZMAGIC: |
1060 |
|
|
printf("ZMAGIC"); |
1061 |
|
|
break; |
1062 |
|
|
case QMAGIC: |
1063 |
|
|
printf("QMAGIC"); |
1064 |
|
|
break; |
1065 |
|
|
default: |
1066 |
|
|
printf("Unknown %ld", (long) N_GETMAGIC (ex)); |
1067 |
|
|
} |
1068 |
|
|
printf("\n"); |
1069 |
|
|
printf("Size of text: %08lx\n", (long)ex.a_text); |
1070 |
|
|
printf("Size of data: %08lx\n", (long)ex.a_data); |
1071 |
|
|
printf("Size of bss: %08lx\n", (long)ex.a_bss); |
1072 |
|
|
printf("Size of symbol tab: %08lx\n", (long)ex.a_syms); |
1073 |
|
|
printf("Transfer Address: %08lx\n", (long)ex.a_entry); |
1074 |
|
|
printf("Size of reloc text: %08lx\n", (long)ex.a_trsize); |
1075 |
|
|
printf("Size of reloc data: %08lx\n", (long)ex.a_drsize); |
1076 |
|
|
} |
1077 |
|
|
|
1078 |
|
|
magic = N_GETMAGIC (ex); |
1079 |
|
|
clbytes = getCLBYTES(mid); |
1080 |
|
|
clofset = clbytes - 1; |
1081 |
|
|
|
1082 |
|
|
dl->image_type = IMAGE_TYPE_AOUT; |
1083 |
|
|
dl->loadaddr = 0; |
1084 |
|
|
dl->xferaddr = ex.a_entry; |
1085 |
|
|
|
1086 |
|
|
dl->a_text = ex.a_text; |
1087 |
|
|
if (magic == ZMAGIC || magic == NMAGIC) { |
1088 |
|
|
dl->a_text_fill = clbytes - (ex.a_text & clofset); |
1089 |
|
|
if (dl->a_text_fill == clbytes) |
1090 |
|
|
dl->a_text_fill = 0; |
1091 |
|
|
} else |
1092 |
|
|
dl->a_text_fill = 0; |
1093 |
|
|
dl->a_data = ex.a_data; |
1094 |
|
|
if (magic == ZMAGIC || magic == NMAGIC) { |
1095 |
|
|
dl->a_data_fill = clbytes - (ex.a_data & clofset); |
1096 |
|
|
if (dl->a_data_fill == clbytes) |
1097 |
|
|
dl->a_data_fill = 0; |
1098 |
|
|
} else |
1099 |
|
|
dl->a_data_fill = 0; |
1100 |
|
|
dl->a_bss = ex.a_bss; |
1101 |
|
|
if (magic == ZMAGIC || magic == NMAGIC) { |
1102 |
|
|
dl->a_bss_fill = clbytes - (ex.a_bss & clofset); |
1103 |
|
|
if (dl->a_bss_fill == clbytes) |
1104 |
|
|
dl->a_bss_fill = 0; |
1105 |
|
|
} else { |
1106 |
|
|
dl->a_bss_fill = clbytes - |
1107 |
|
|
((ex.a_text+ex.a_data+ex.a_bss) & clofset); |
1108 |
|
|
if (dl->a_bss_fill == clbytes) |
1109 |
|
|
dl->a_bss_fill = 0; |
1110 |
|
|
} |
1111 |
|
|
dl->a_mid = mid; |
1112 |
|
|
|
1113 |
|
|
return(0); |
1114 |
|
|
#endif /* NOAOUT */ |
1115 |
|
|
} |
1116 |
|
|
|
1117 |
|
|
int |
1118 |
|
|
GetFileInfo(struct dllist *dl, int info) |
1119 |
|
|
{ |
1120 |
|
|
int error; |
1121 |
|
|
|
1122 |
|
|
error = CheckElfFile(dl->ldfd); |
1123 |
|
|
if (error == 0) { |
1124 |
|
|
error = GetElf32FileInfo(dl, info); |
1125 |
|
|
if (error != 0) |
1126 |
|
|
error = GetElf64FileInfo(dl, info); |
1127 |
|
|
if (error != 0) { |
1128 |
|
|
return(-1); |
1129 |
|
|
} |
1130 |
|
|
return (0); |
1131 |
|
|
} |
1132 |
|
|
|
1133 |
|
|
error = CheckAOutFile(dl->ldfd); |
1134 |
|
|
if (error == 0) { |
1135 |
|
|
error = GetAOutFileInfo(dl, info); |
1136 |
|
|
if (error != 0) { |
1137 |
|
|
return(-1); |
1138 |
|
|
} |
1139 |
|
|
return (0); |
1140 |
|
|
} |
1141 |
|
|
|
1142 |
|
|
error = CheckMopFile(dl->ldfd); |
1143 |
|
|
if (error == 0) { |
1144 |
|
|
error = GetMopFileInfo(dl, info); |
1145 |
|
|
if (error != 0) { |
1146 |
|
|
return(-1); |
1147 |
|
|
} |
1148 |
|
|
return (0); |
1149 |
|
|
} |
1150 |
|
|
|
1151 |
|
|
/* Unknown file format. */ |
1152 |
|
|
return(-1); |
1153 |
|
|
} |
1154 |
|
|
|
1155 |
|
|
ssize_t |
1156 |
|
|
mopFileRead(struct dllist *dlslot, u_char *buf) |
1157 |
|
|
{ |
1158 |
|
|
ssize_t len, outlen; |
1159 |
|
|
int bsz, sec; |
1160 |
|
|
int32_t pos, notdone, total; |
1161 |
|
|
uint32_t secoff; |
1162 |
|
|
|
1163 |
|
|
switch (dlslot->image_type) { |
1164 |
|
|
case IMAGE_TYPE_MOP: |
1165 |
|
|
len = read(dlslot->ldfd,buf,dlslot->dl_bsz); |
1166 |
|
|
break; |
1167 |
|
|
|
1168 |
|
|
case IMAGE_TYPE_ELF32: |
1169 |
|
|
case IMAGE_TYPE_ELF64: |
1170 |
|
|
sec = dlslot->e_cursec; |
1171 |
|
|
|
1172 |
|
|
/* |
1173 |
|
|
* We're pretty simplistic here. We do only file-backed |
1174 |
|
|
* or only zero-fill. |
1175 |
|
|
*/ |
1176 |
|
|
|
1177 |
|
|
/* Determine offset into section. */ |
1178 |
|
|
secoff = dlslot->e_curpos - dlslot->e_sections[sec].s_loff; |
1179 |
|
|
|
1180 |
|
|
/* |
1181 |
|
|
* If we're in the file-backed part of the section, |
1182 |
|
|
* transmit some of the file. |
1183 |
|
|
*/ |
1184 |
|
|
if (secoff < dlslot->e_sections[sec].s_fsize) { |
1185 |
|
|
bsz = dlslot->e_sections[sec].s_fsize - secoff; |
1186 |
|
|
if (bsz > dlslot->dl_bsz) |
1187 |
|
|
bsz = dlslot->dl_bsz; |
1188 |
|
|
if (lseek(dlslot->ldfd, |
1189 |
|
|
dlslot->e_sections[sec].s_foff + secoff, |
1190 |
|
|
SEEK_SET) == (off_t) -1) |
1191 |
|
|
return (-1); |
1192 |
|
|
len = read(dlslot->ldfd, buf, bsz); |
1193 |
|
|
} |
1194 |
|
|
/* |
1195 |
|
|
* Otherwise, if we're in the zero-fill part of the |
1196 |
|
|
* section, transmit some zeros. |
1197 |
|
|
*/ |
1198 |
|
|
else if (secoff < (dlslot->e_sections[sec].s_fsize + |
1199 |
|
|
dlslot->e_sections[sec].s_pad)) { |
1200 |
|
|
bsz = dlslot->e_sections[sec].s_pad - |
1201 |
|
|
(secoff - dlslot->e_sections[sec].s_fsize); |
1202 |
|
|
if (bsz > dlslot->dl_bsz) |
1203 |
|
|
bsz = dlslot->dl_bsz; |
1204 |
|
|
memset(buf, 0, (len = bsz)); |
1205 |
|
|
} |
1206 |
|
|
/* |
1207 |
|
|
* ...and if we haven't hit either of those cases, |
1208 |
|
|
* that's the end of the image. |
1209 |
|
|
*/ |
1210 |
|
|
else { |
1211 |
|
|
return (0); |
1212 |
|
|
} |
1213 |
|
|
/* |
1214 |
|
|
* Advance the logical image pointer. |
1215 |
|
|
*/ |
1216 |
|
|
dlslot->e_curpos += bsz; |
1217 |
|
|
if (dlslot->e_curpos >= (dlslot->e_sections[sec].s_loff + |
1218 |
|
|
dlslot->e_sections[sec].s_fsize + |
1219 |
|
|
dlslot->e_sections[sec].s_pad)) |
1220 |
|
|
if (++sec != dlslot->e_nsec) |
1221 |
|
|
dlslot->e_cursec = sec; |
1222 |
|
|
break; |
1223 |
|
|
|
1224 |
|
|
case IMAGE_TYPE_AOUT: |
1225 |
|
|
bsz = dlslot->dl_bsz; |
1226 |
|
|
pos = dlslot->a_lseek; |
1227 |
|
|
len = 0; |
1228 |
|
|
|
1229 |
|
|
total = dlslot->a_text; |
1230 |
|
|
|
1231 |
|
|
if (pos < total) { |
1232 |
|
|
notdone = total - pos; |
1233 |
|
|
if (notdone <= bsz) { |
1234 |
|
|
outlen = read(dlslot->ldfd,&buf[len],notdone); |
1235 |
|
|
} else { |
1236 |
|
|
outlen = read(dlslot->ldfd,&buf[len],bsz); |
1237 |
|
|
} |
1238 |
|
|
len = len + outlen; |
1239 |
|
|
pos = pos + outlen; |
1240 |
|
|
bsz = bsz - outlen; |
1241 |
|
|
} |
1242 |
|
|
|
1243 |
|
|
total = total + dlslot->a_text_fill; |
1244 |
|
|
|
1245 |
|
|
if ((bsz > 0) && (pos < total)) { |
1246 |
|
|
notdone = total - pos; |
1247 |
|
|
if (notdone <= bsz) { |
1248 |
|
|
outlen = notdone; |
1249 |
|
|
} else { |
1250 |
|
|
outlen = bsz; |
1251 |
|
|
} |
1252 |
|
|
memset(&buf[len], 0, outlen); |
1253 |
|
|
len = len + outlen; |
1254 |
|
|
pos = pos + outlen; |
1255 |
|
|
bsz = bsz - outlen; |
1256 |
|
|
} |
1257 |
|
|
|
1258 |
|
|
total = total + dlslot->a_data; |
1259 |
|
|
|
1260 |
|
|
if ((bsz > 0) && (pos < total)) { |
1261 |
|
|
notdone = total - pos; |
1262 |
|
|
if (notdone <= bsz) { |
1263 |
|
|
outlen = read(dlslot->ldfd,&buf[len],notdone); |
1264 |
|
|
} else { |
1265 |
|
|
outlen = read(dlslot->ldfd,&buf[len],bsz); |
1266 |
|
|
} |
1267 |
|
|
len = len + outlen; |
1268 |
|
|
pos = pos + outlen; |
1269 |
|
|
bsz = bsz - outlen; |
1270 |
|
|
} |
1271 |
|
|
|
1272 |
|
|
total = total + dlslot->a_data_fill; |
1273 |
|
|
|
1274 |
|
|
if ((bsz > 0) && (pos < total)) { |
1275 |
|
|
notdone = total - pos; |
1276 |
|
|
if (notdone <= bsz) { |
1277 |
|
|
outlen = notdone; |
1278 |
|
|
} else { |
1279 |
|
|
outlen = bsz; |
1280 |
|
|
} |
1281 |
|
|
memset(&buf[len], 0, outlen); |
1282 |
|
|
len = len + outlen; |
1283 |
|
|
pos = pos + outlen; |
1284 |
|
|
bsz = bsz - outlen; |
1285 |
|
|
} |
1286 |
|
|
|
1287 |
|
|
total = total + dlslot->a_bss; |
1288 |
|
|
|
1289 |
|
|
if ((bsz > 0) && (pos < total)) { |
1290 |
|
|
notdone = total - pos; |
1291 |
|
|
if (notdone <= bsz) { |
1292 |
|
|
outlen = notdone; |
1293 |
|
|
} else { |
1294 |
|
|
outlen = bsz; |
1295 |
|
|
} |
1296 |
|
|
memset(&buf[len], 0, outlen); |
1297 |
|
|
len = len + outlen; |
1298 |
|
|
pos = pos + outlen; |
1299 |
|
|
bsz = bsz - outlen; |
1300 |
|
|
} |
1301 |
|
|
|
1302 |
|
|
total = total + dlslot->a_bss_fill; |
1303 |
|
|
|
1304 |
|
|
if ((bsz > 0) && (pos < total)) { |
1305 |
|
|
notdone = total - pos; |
1306 |
|
|
if (notdone <= bsz) { |
1307 |
|
|
outlen = notdone; |
1308 |
|
|
} else { |
1309 |
|
|
outlen = bsz; |
1310 |
|
|
} |
1311 |
|
|
memset(&buf[len], 0, outlen); |
1312 |
|
|
len = len + outlen; |
1313 |
|
|
pos = pos + outlen; |
1314 |
|
|
bsz = bsz - outlen; |
1315 |
|
|
} |
1316 |
|
|
|
1317 |
|
|
dlslot->a_lseek = pos; |
1318 |
|
|
break; |
1319 |
|
|
|
1320 |
|
|
default: |
1321 |
|
|
abort(); |
1322 |
|
|
} |
1323 |
|
|
|
1324 |
|
|
return(len); |
1325 |
|
|
} |