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/*- |
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* Copyright (c) 2006 Joseph Koshy |
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* 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 AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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*/ |
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|
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#include <sys/cdefs.h> |
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__MBSDID("$MidnightBSD$"); |
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|
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#include <libelf.h> |
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|
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#include "_libelf.h" |
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|
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unsigned int |
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elf_flagdata(Elf_Data *d, Elf_Cmd c, unsigned int flags) |
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{ |
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Elf *e; |
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Elf_Scn *scn; |
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unsigned int r; |
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|
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if (d == NULL) |
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return (0); |
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|
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if ((c != ELF_C_SET && c != ELF_C_CLR) || (scn = d->d_scn) == NULL || |
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(e = scn->s_elf) == NULL || e->e_kind != ELF_K_ELF || |
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(flags & ~ELF_F_DIRTY) != 0) { |
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LIBELF_SET_ERROR(ARGUMENT, 0); |
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return (0); |
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} |
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|
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if (c == ELF_C_SET) |
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r = scn->s_flags |= flags; |
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else |
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r = scn->s_flags &= ~flags; |
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|
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return (r); |
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} |
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|
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unsigned int |
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elf_flagehdr(Elf *e, Elf_Cmd c, unsigned int flags) |
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{ |
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int ec; |
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void *ehdr; |
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|
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if (e == NULL) |
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return (0); |
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|
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if ((c != ELF_C_SET && c != ELF_C_CLR) || |
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(e->e_kind != ELF_K_ELF) || (flags & ~ELF_F_DIRTY) != 0 || |
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((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) { |
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LIBELF_SET_ERROR(ARGUMENT, 0); |
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return (0); |
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} |
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|
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if (ec == ELFCLASS32) |
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ehdr = e->e_u.e_elf.e_ehdr.e_ehdr32; |
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else |
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ehdr = e->e_u.e_elf.e_ehdr.e_ehdr64; |
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|
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if (ehdr == NULL) { |
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LIBELF_SET_ERROR(SEQUENCE, 0); |
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return (0); |
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} |
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|
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return (elf_flagelf(e, c, flags)); |
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} |
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|
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unsigned int |
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elf_flagelf(Elf *e, Elf_Cmd c, unsigned int flags) |
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{ |
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int r; |
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|
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if (e == NULL) |
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return (0); |
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|
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if ((c != ELF_C_SET && c != ELF_C_CLR) || |
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(e->e_kind != ELF_K_ELF) || |
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(flags & ~(ELF_F_DIRTY|ELF_F_LAYOUT)) != 0) { |
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LIBELF_SET_ERROR(ARGUMENT, 0); |
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return (0); |
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} |
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|
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if (c == ELF_C_SET) |
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r = e->e_flags |= flags; |
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else |
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r = e->e_flags &= ~flags; |
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return (r); |
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} |
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|
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unsigned int |
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elf_flagphdr(Elf *e, Elf_Cmd c, unsigned int flags) |
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{ |
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int ec; |
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void *phdr; |
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|
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if (e == NULL) |
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return (0); |
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|
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if ((c != ELF_C_SET && c != ELF_C_CLR) || |
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(e->e_kind != ELF_K_ELF) || (flags & ~ELF_F_DIRTY) != 0 || |
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((ec = e->e_class) != ELFCLASS32 && ec != ELFCLASS64)) { |
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LIBELF_SET_ERROR(ARGUMENT, 0); |
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return (0); |
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} |
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|
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if (ec == ELFCLASS32) |
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phdr = e->e_u.e_elf.e_phdr.e_phdr32; |
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else |
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phdr = e->e_u.e_elf.e_phdr.e_phdr64; |
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|
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if (phdr == NULL) { |
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LIBELF_SET_ERROR(SEQUENCE, 0); |
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return (0); |
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} |
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|
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return (elf_flagelf(e, c, flags)); |
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} |
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|
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unsigned int |
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elf_flagscn(Elf_Scn *s, Elf_Cmd c, unsigned int flags) |
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{ |
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int r; |
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|
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if (s == NULL) |
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return (0); |
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|
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if ((c != ELF_C_SET && c != ELF_C_CLR) || |
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(flags & ~ELF_F_DIRTY) != 0) { |
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LIBELF_SET_ERROR(ARGUMENT, 0); |
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return (0); |
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} |
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|
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if (c == ELF_C_SET) |
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r = s->s_flags |= flags; |
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else |
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r = s->s_flags &= ~flags; |
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return (r); |
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} |
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|
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unsigned int |
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elf_flagshdr(Elf_Scn *s, Elf_Cmd c, unsigned int flags) |
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{ |
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return (elf_flagscn(s, c, flags)); |
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} |
