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65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
/* Conversion functions for notes.
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Copyright (C) 2007, 2009, 2014 Red Hat, Inc.
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This file is part of elfutils.
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This file is free software; you can redistribute it and/or modify
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it under the terms of either
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* the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at
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your option) any later version
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or
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* the GNU General Public License as published by the Free
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Software Foundation; either version 2 of the License, or (at
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your option) any later version
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or both in parallel, as here.
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elfutils is distributed in the hope that it will be useful, but
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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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General Public License for more details.
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You should have received copies of the GNU General Public License and
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the GNU Lesser General Public License along with this program. If
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not, see <http://www.gnu.org/licenses/>. */
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static void
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elf_cvt_note (void *dest, const void *src, size_t len, int encode)
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{
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assert (sizeof (Elf32_Nhdr) == sizeof (Elf64_Nhdr));
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while (len >= sizeof (Elf32_Nhdr))
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{
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(1 ? Elf32_cvt_Nhdr : Elf64_cvt_Nhdr) (dest, src, sizeof (Elf32_Nhdr),
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encode);
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const Elf32_Nhdr *n = encode ? src : dest;
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Elf32_Word namesz = NOTE_ALIGN (n->n_namesz);
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Elf32_Word descsz = NOTE_ALIGN (n->n_descsz);
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len -= sizeof *n;
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src += sizeof *n;
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dest += sizeof *n;
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if (namesz > len)
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break;
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len -= namesz;
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if (descsz > len)
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break;
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len -= descsz;
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if (src != dest)
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memcpy (dest, src, namesz + descsz);
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src += namesz + descsz;
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dest += namesz + descsz;
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}
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/* Copy opver any leftover data unconcerted. Probably part of
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truncated name/desc data. */
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if (unlikely (len > 0) && src != dest)
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memcpy (dest, src, len);
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}
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