Elf *
elf_memory(char *image, size_t sz)
{
Elf *e;
if (LIBELF_PRIVATE(version) == EV_NONE) {
LIBELF_SET_ERROR(SEQUENCE, 0);
return (NULL);
}
if (image == NULL || sz == 0) {
LIBELF_SET_ERROR(ARGUMENT, 0);
return (NULL);
}
if ((e = _libelf_allocate_elf()) == NULL)
return (NULL);
e->e_cmd = ELF_C_READ;
e->e_rawfile = image;
e->e_rawsize = sz;
#undef LIBELF_IS_ELF
#define LIBELF_IS_ELF(P) ((P)[EI_MAG0] == ELFMAG0 && \
(P)[EI_MAG1] == ELFMAG1 && (P)[EI_MAG2] == ELFMAG2 && \
(P)[EI_MAG3] == ELFMAG3)
if (sz > EI_NIDENT && LIBELF_IS_ELF(image)) {
_libelf_init_elf(e, ELF_K_ELF);
e->e_class = image[EI_CLASS];
e->e_byteorder = image[EI_DATA];
e->e_version = image[EI_VERSION];
if (e->e_version > EV_CURRENT) {
e = _libelf_release_elf(e);
LIBELF_SET_ERROR(VERSION, 0);
return (NULL);
}
if ((e->e_byteorder != ELFDATA2LSB && e->e_byteorder !=
ELFDATA2MSB) || (e->e_class != ELFCLASS32 && e->e_class !=
ELFCLASS64)) {
e = _libelf_release_elf(e);
LIBELF_SET_ERROR(HEADER, 0);
return (NULL);
}
} else if (sz >= SARMAG &&
strncmp(image, ARMAG, (size_t) SARMAG) == 0) {
_libelf_init_elf(e, ELF_K_AR);
e = _libelf_ar_open(e);
} else
_libelf_init_elf(e, ELF_K_NONE);
return (e);
}
Elf *
_libelf_memory(char *image, size_t sz, int reporterror)
{
Elf *e;
int e_class;
enum Elf_Error error;
unsigned int e_byteorder, e_version;
assert(image != NULL);
assert(sz > 0);
if ((e = _libelf_allocate_elf()) == NULL)
return (NULL);
e->e_cmd = ELF_C_READ;
e->e_rawfile = image;
e->e_rawsize = sz;
#undef LIBELF_IS_ELF
#define LIBELF_IS_ELF(P) ((P)[EI_MAG0] == ELFMAG0 && \
(P)[EI_MAG1] == ELFMAG1 && (P)[EI_MAG2] == ELFMAG2 && \
(P)[EI_MAG3] == ELFMAG3)
if (sz > EI_NIDENT && LIBELF_IS_ELF(image)) {
e_byteorder = image[EI_DATA];
e_class = image[EI_CLASS];
e_version = image[EI_VERSION];
error = ELF_E_NONE;
if (e_version > EV_CURRENT)
error = ELF_E_VERSION;
else if ((e_byteorder != ELFDATA2LSB && e_byteorder !=
ELFDATA2MSB) || (e_class != ELFCLASS32 && e_class !=
ELFCLASS64))
error = ELF_E_HEADER;
if (error != ELF_E_NONE) {
if (reporterror) {
LIBELF_PRIVATE(error) = LIBELF_ERROR(error, 0);
(void) _libelf_release_elf(e);
return (NULL);
}
} else {
_libelf_init_elf(e, ELF_K_ELF);
e->e_byteorder = e_byteorder;
e->e_class = e_class;
e->e_version = e_version;
}
} else if (sz >= SARMAG &&
strncmp(image, ARMAG, (size_t) SARMAG) == 0)
return (_libelf_ar_open(e, reporterror));
return (e);
}