/* * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights * Reserved. This file contains Original Code and/or Modifications of * Original Code as defined in and that are subject to the Apple Public * Source License Version 1.1 (the "License"). You may not use this file * except in compliance with the License. Please obtain a copy of the * License at http://www.apple.com/publicsource and read it before using * this file. * * The Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ #include <string.h> #import "mach-o/loader.h" /* * This routine returns the section structure for the named section in the * named segment for the mach_header pointer passed to it if it exist. * Otherwise it returns zero. */ const struct section * getsectbynamefromheader( const struct mach_header *mhp, const char *segname, const char *sectname) { struct segment_command *sgp; struct section *sp; long i, j; sgp = (struct segment_command *) ((char *)mhp + sizeof(struct mach_header)); for(i = 0; i < mhp->ncmds; i++){ if(sgp->cmd == LC_SEGMENT) if(strncmp(sgp->segname, segname, sizeof(sgp->segname)) == 0){ sp = (struct section *)((char *)sgp + sizeof(struct segment_command)); for(j = 0; j < sgp->nsects; j++){ if(strncmp(sp->sectname, sectname, sizeof(sp->sectname)) == 0 && strncmp(sp->segname, segname, sizeof(sp->segname)) == 0) return(sp); sp = (struct section *)((char *)sp + sizeof(struct section)); } } sgp = (struct segment_command *)((char *)sgp + sgp->cmdsize); } return((const struct section *)0); }