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/* Get string.
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Copyright (C) 2004 Red Hat, Inc.
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This file is part of elfutils.
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Written by Ulrich Drepper <drepper@redhat.com>, 2004.
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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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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <string.h>
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#include "libdwP.h"
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const char *
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dwarf_getstring (Dwarf *dbg, Dwarf_Off offset, size_t *lenp)
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{
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if (dbg == NULL)
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return NULL;
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if (dbg->sectiondata[IDX_debug_str] == NULL
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|| offset >= dbg->sectiondata[IDX_debug_str]->d_size)
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{
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no_string:
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__libdw_seterrno (DWARF_E_NO_STRING);
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return NULL;
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}
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const char *result = ((const char *) dbg->sectiondata[IDX_debug_str]->d_buf
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+ offset);
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const char *endp = memchr (result, '\0',
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dbg->sectiondata[IDX_debug_str]->d_size - offset);
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if (endp == NULL)
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goto no_string;
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if (lenp != NULL)
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*lenp = endp - result;
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return result;
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}
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