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ARM_is_QNX looks for PT_INTERP containing "ldqnx"

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This commit is contained in:
John Reiser 2011-10-16 15:04:18 -07:00
parent c421e3f243
commit 31af22c2ff
1 changed files with 19 additions and 2 deletions
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21
src/p_lx_elf.cpp
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@ -2363,8 +2363,25 @@ int PackLinuxElf32::ARM_is_QNX(void)
if (Elf32_Ehdr::EM_ARM==get_te16(&ehdri.e_machine)
&& Elf32_Ehdr::ELFDATA2MSB== ehdri.e_ident[Elf32_Ehdr::EI_DATA]
&& Elf32_Ehdr::ELFOSABI_ARM==ehdri.e_ident[Elf32_Ehdr::EI_OSABI]
&& 0x100000==(page_mask & get_te32(&phdri[0].p_vaddr)))
return 1;
&& 0x100000==(page_mask & get_te32(&phdri[0].p_vaddr))) {
Elf32_Phdr const *phdr = phdri;
for (int j = get_te16(&ehdri.e_phnum); --j>=0; ++phdr) {
if (Elf32_Phdr::PT_INTERP==get_te32(&phdr->p_type)) {
char interp[64];
unsigned const sz_interp = get_te32(&phdr->p_filesz);
unsigned const pos_interp = get_te32(&phdr->p_offset);
if (sz_interp <= sizeof(interp)
&& (sz_interp + pos_interp) <= fi->st_size()) {
fi->seek(pos_interp, SEEK_SET);
fi->readx(interp, sz_interp);
for (int k = -5+ sz_interp; k>=0; --k) {
if (0==memcmp("ldqnx", &interp[k], 5))
return 1;
}
}
}
}
}
return 0;
}