/*32.newphdr.c - implementation of the elf{32,64}_newphdr(3) functions.Copyright (C) 1995 - 2000 Michael Riepe <michael@stud.uni-hannover.de>This library is free software; you can redistribute it and/ormodify it under the terms of the GNU Library General PublicLicense as published by the Free Software Foundation; eitherversion 2 of the License, or (at your option) any later version.This library is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY; without even the implied warranty ofMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNULibrary General Public License for more details.You should have received a copy of the GNU Library General PublicLicense along with this library; if not, write to the Free SoftwareFoundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.*/#include <private.h>#ifndef lintstatic const char rcsid[] = "@(#) $Id: 32.newphdr.c,v 1.9 2000/03/31 12:42:32 michael Exp $";#endif /* lint */static char*_elf_newphdr(Elf *elf, size_t count, unsigned cls) {    char *phdr = NULL;    size_t size;    if (!elf) {	return NULL;    }    elf_assert(elf->e_magic == ELF_MAGIC);    if (!elf->e_ehdr && !elf->e_readable) {	seterr(ERROR_NOEHDR);    }    else if (elf->e_kind != ELF_K_ELF) {	seterr(ERROR_NOTELF);    }    else if (elf->e_class != cls) {	seterr(ERROR_CLASSMISMATCH);    }    else if (elf->e_ehdr || _elf_cook(elf)) {	size = _msize(cls, _elf_version, ELF_T_PHDR);	elf_assert(size);	if (count) {	    if (!(phdr = (char*)malloc(count * size))) {		seterr(ERROR_MEM_PHDR);		return NULL;	    }	    memset(phdr, 0, count * size);	}	elf_assert(elf->e_ehdr);	if (cls == ELFCLASS32) {	    ((Elf32_Ehdr*)elf->e_ehdr)->e_phnum = elf->e_phnum = count;	}#if __LIBELF64	else if (cls == ELFCLASS64) {	    ((Elf64_Ehdr*)elf->e_ehdr)->e_phnum = elf->e_phnum = count;	}#endif /* __LIBELF64 */	else {	    seterr(ERROR_UNIMPLEMENTED);	    if (phdr) {		free(phdr);	    }	    return NULL;	}	if (elf->e_free_phdr) {	    elf_assert(elf->e_phdr);	    free(elf->e_phdr);	}	elf->e_phdr = phdr;	elf->e_free_phdr = phdr ? 1 : 0;	elf->e_phdr_flags |= ELF_F_DIRTY;	elf->e_ehdr_flags |= ELF_F_DIRTY;	return phdr;    }    return NULL;}Elf32_Phdr*elf32_newphdr(Elf *elf, size_t count) {    return (Elf32_Phdr*)_elf_newphdr(elf, count, ELFCLASS32);}#if __LIBELF64Elf64_Phdr*elf64_newphdr(Elf *elf, size_t count) {    return (Elf64_Phdr*)_elf_newphdr(elf, count, ELFCLASS64);}unsigned longgelf_newphdr(Elf *elf, size_t phnum) {    if (!valid_class(elf->e_class)) {	seterr(ERROR_UNKNOWN_CLASS);	return 0;    }    if (!_elf_newphdr(elf, phnum, elf->e_class)) {	return 0;    }    return 1;	/* really? */}#endif /* __LIBELF64 */