/*+
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flag.c - implementation of the elf_flag*(3) functions.+
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Copyright (C) 1995 - 1998 Michael Riepe+
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+
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This library is free software; you can redistribute it and/or+
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modify it under the terms of the GNU Library General Public+
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License as published by the Free Software Foundation; either+
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version 2 of the License, or (at your option) any later version.+
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+
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This library is distributed in the hope that it will be useful,+
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but WITHOUT ANY WARRANTY; without even the implied warranty of+
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU+
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Library General Public License for more details.+
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+
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You should have received a copy of the GNU Library General Public+
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License along with this library; if not, write to the Free Software+
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA+
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*/+
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+
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#include <private.h>+
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+
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#ifndef lint+
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static const char rcsid[] = "@(#) $Id: flag.c,v 1.6 2005/05/21 15:39:22 michael Exp $";+
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#endif /* lint */+
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+
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static unsigned+
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_elf_flag(unsigned *f, Elf_Cmd cmd, unsigned flags) {+
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    if (cmd == ELF_C_SET) {+
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	return *f |= flags;+
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    }+
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    if (cmd == ELF_C_CLR) {+
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	return *f &= ~flags;+
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    }+
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    seterr(ERROR_INVALID_CMD);+
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    return 0;+
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}+
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+
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unsigned+
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elf_flagdata(Elf_Data *data, Elf_Cmd cmd, unsigned flags) {+
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    Scn_Data *sd = (Scn_Data*)data;+
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+
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    if (!sd) {+
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	return 0;+
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    }+
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    elf_assert(sd->sd_magic == DATA_MAGIC);+
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    return _elf_flag(&sd->sd_data_flags, cmd, flags);+
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}+
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+
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unsigned+
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elf_flagehdr(Elf *elf, Elf_Cmd cmd, unsigned flags) {+
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    if (!elf) {+
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	return 0;+
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    }+
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    elf_assert(elf->e_magic == ELF_MAGIC);+
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    return _elf_flag(&elf->e_ehdr_flags, cmd, flags);+
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}+
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+
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unsigned+
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elf_flagelf(Elf *elf, Elf_Cmd cmd, unsigned flags) {+
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    if (!elf) {+
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	return 0;+
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    }+
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    elf_assert(elf->e_magic == ELF_MAGIC);+
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    return _elf_flag(&elf->e_elf_flags, cmd, flags);+
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}+
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+
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unsigned+
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elf_flagphdr(Elf *elf, Elf_Cmd cmd, unsigned flags) {+
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    if (!elf) {+
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	return 0;+
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    }+
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    elf_assert(elf->e_magic == ELF_MAGIC);+
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    return _elf_flag(&elf->e_phdr_flags, cmd, flags);+
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}+
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+
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unsigned+
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elf_flagscn(Elf_Scn *scn, Elf_Cmd cmd, unsigned flags) {+
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    if (!scn) {+
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	return 0;+
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    }+
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    elf_assert(scn->s_magic == SCN_MAGIC);+
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    return _elf_flag(&scn->s_scn_flags, cmd, flags);+
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}+
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+
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unsigned+
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elf_flagshdr(Elf_Scn *scn, Elf_Cmd cmd, unsigned flags) {+
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    if (!scn) {+
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	return 0;+
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    }+
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    elf_assert(scn->s_magic == SCN_MAGIC);+
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    return _elf_flag(&scn->s_shdr_flags, cmd, flags);+
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}+
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