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Differential D10487 Diff 27704 contrib/elftoolchain/libelf/elf_data.c

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contrib/elftoolchain/libelf/elf_data.c

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#include <libelf.h> #include <libelf.h>
#include <stdint.h> #include <stdint.h>
#include <stdlib.h> #include <stdlib.h>
#include <stdbool.h>
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#include "_libelf.h" #include "_libelf.h"
ELFTC_VCSID("$Id: elf_data.c 3466 2016-05-11 18:35:44Z emaste $"); ELFTC_VCSID("$Id: elf_data.c 3466 2016-05-11 18:35:44Z emaste $");
Elf_Data * Elf_Data *
elf_getdata(Elf_Scn *s, Elf_Data *ed) _libelf_getdata(Elf_Scn *s, Elf_Data *ed, bool updating)
{ {
Elf *e; Elf *e;
unsigned int sh_type; unsigned int sh_type;
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if ((elftype = _libelf_xlate_shtype(sh_type)) < ELF_T_FIRST || if ((elftype = _libelf_xlate_shtype(sh_type)) < ELF_T_FIRST ||
elftype > ELF_T_LAST || (sh_type != SHT_NOBITS && elftype > ELF_T_LAST || (sh_type != SHT_NOBITS &&
(sh_offset > e->e_rawsize || sh_size > e->e_rawsize - sh_offset))) { (!updating &&
(sh_offset > e->e_rawsize ||
sh_size > e->e_rawsize - sh_offset)))) {
LIBELF_SET_ERROR(SECTION, 0); LIBELF_SET_ERROR(SECTION, 0);
return (NULL); return (NULL);
} }
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} }
Elf_Data * Elf_Data *
elf_getdata(Elf_Scn *s, Elf_Data *ed)
{
return (_libelf_getdata(s, ed, false));
}
Elf_Data *
elf_newdata(Elf_Scn *s) elf_newdata(Elf_Scn *s)
{ {
Elf *e; Elf *e;
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*/ */
Elf_Data * Elf_Data *
elf_rawdata(Elf_Scn *s, Elf_Data *ed) _libelf_rawdata(Elf_Scn *s, Elf_Data *ed, bool updating)
{ {
Elf *e; Elf *e;
int elf_class; int elf_class;
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} }
if (sh_type != SHT_NOBITS && if (sh_type != SHT_NOBITS &&
(sh_offset > e->e_rawsize || sh_size > e->e_rawsize - sh_offset)) { (!updating &&
(sh_offset > e->e_rawsize ||
sh_size > e->e_rawsize - sh_offset))) {
LIBELF_SET_ERROR(SECTION, 0); LIBELF_SET_ERROR(SECTION, 0);
return (NULL); return (NULL);
} }
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return (&d->d_data); return (&d->d_data);
} }
Elf_Data *
elf_rawdata(Elf_Scn *s, Elf_Data *ed)
{
return (_libelf_rawdata(s, ed, false));
}
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