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ab4978b51e
TEST=util_test MachOImageReader.* (and all others with a 10.6 SDK build) R=rsesek@chromium.org Review URL: https://codereview.chromium.org/561933004
134 lines
3.8 KiB
C
134 lines
3.8 KiB
C
/*
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* Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
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*
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* @APPLE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this
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* file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_LICENSE_HEADER_END@
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*/
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#include "third_party/apple_cctools/cctools/include/mach-o/getsect.h"
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#if !defined(MAC_OS_X_VERSION_10_7) || \
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MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_7
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#include <string.h>
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#ifndef __LP64__
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typedef struct mach_header mach_header_32_64;
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typedef struct segment_command segment_command_32_64;
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typedef struct section section_32_64;
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#define LC_SEGMENT_32_64 LC_SEGMENT
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#else /* defined(__LP64__) */
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typedef struct mach_header_64 mach_header_32_64;
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typedef struct segment_command_64 segment_command_32_64;
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typedef struct section_64 section_32_64;
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#define LC_SEGMENT_32_64 LC_SEGMENT_64
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#endif /* defined(__LP64__) */
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/*
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* This routine returns the a pointer to the section contents of the named
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* section in the named segment if it exists in the image pointed to by the
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* mach header. Otherwise it returns zero.
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*/
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uint8_t *
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crashpad_getsectiondata(
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const mach_header_32_64 *mhp,
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const char *segname,
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const char *sectname,
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unsigned long *size)
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{
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segment_command_32_64 *sgp, *zero;
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section_32_64 *sp, *find;
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uint32_t i, j;
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zero = 0;
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find = 0;
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sp = 0;
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sgp = (segment_command_32_64 *)
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((char *)mhp + sizeof(mach_header_32_64));
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for(i = 0; i < mhp->ncmds; i++){
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if(sgp->cmd == LC_SEGMENT_32_64){
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if(zero == 0 && sgp->fileoff == 0 && sgp->nsects != 0){
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zero = sgp;
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if(find != 0)
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goto done;
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}
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if(find == 0 &&
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strncmp(sgp->segname, segname, sizeof(sgp->segname)) == 0){
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sp = (section_32_64 *)((char *)sgp +
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sizeof(segment_command_32_64));
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for(j = 0; j < sgp->nsects; j++){
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if(strncmp(sp->sectname, sectname,
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sizeof(sp->sectname)) == 0 &&
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strncmp(sp->segname, segname,
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sizeof(sp->segname)) == 0){
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find = sp;
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if(zero != 0)
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goto done;
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}
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sp = (section_32_64 *)((char *)sp +
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sizeof(section_32_64));
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}
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}
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}
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sgp = (segment_command_32_64 *)((char *)sgp + sgp->cmdsize);
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}
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return(0);
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done:
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*size = sp->size;
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return((uint8_t *)((uintptr_t)mhp - zero->vmaddr + sp->addr));
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}
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uint8_t *
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crashpad_getsegmentdata(
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const mach_header_32_64 *mhp,
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const char *segname,
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unsigned long *size)
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{
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segment_command_32_64 *sgp, *zero, *find;
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uint32_t i;
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zero = 0;
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find = 0;
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sgp = (segment_command_32_64 *)
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((char *)mhp + sizeof(mach_header_32_64));
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for(i = 0; i < mhp->ncmds; i++){
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if(sgp->cmd == LC_SEGMENT_32_64){
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if(zero == 0 && sgp->fileoff == 0 && sgp->nsects != 0){
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zero = sgp;
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if(find != 0)
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goto done;
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}
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if(find == 0 &&
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strncmp(sgp->segname, segname, sizeof(sgp->segname)) == 0){
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find = sgp;
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if(zero != 0)
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goto done;
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}
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}
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sgp = (segment_command_32_64 *)((char *)sgp + sgp->cmdsize);
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}
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return(0);
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done:
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*size = sgp->vmsize;
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return((uint8_t *)((uintptr_t)mhp - zero->vmaddr + sgp->vmaddr));
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}
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#endif /* MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_7 */
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