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| author | Tuomas Tynkkynen <tuomas@tuxera.com> | 2017-04-19 14:22:23 (GMT) |
|---|---|---|
| committer | Tuomas Tynkkynen <tuomas@tuxera.com> | 2017-04-19 14:33:33 (GMT) |
| commit | daaffbe7f3e4e1ec0052f8d6ce153cd7f5fdeb76 (patch) | |
| tree | 9c7835d0b5ec5babbfd27293f056f11034265223 /src/patchelf.cc | |
| parent | bfc3db32d26cbf6d1aa96aa0fd9a82aa5576ba17 (diff) | |
| download | patchelf-daaffbe7f3e4e1ec0052f8d6ce153cd7f5fdeb76.zip patchelf-daaffbe7f3e4e1ec0052f8d6ce153cd7f5fdeb76.tar.gz patchelf-daaffbe7f3e4e1ec0052f8d6ce153cd7f5fdeb76.tar.bz2 | |
Give a better error message if the file lacks a section header table
Currently, patchelf outputs this when run on a UPX-compressed ELF file:
patchelf: patchelf.cc:420: ElfFile<Elf_Ehdr, Elf_Phdr, Elf_Shdr, Elf_Addr, Elf_Off, Elf_Dyn, Elf_Sym, Elf_Verneed>::ElfFile(FileContents): Assertion `shstrtabIndex < shdrs.size()' failed.
Make it give a nicer error message:
patchelf: no section headers. The input file is probably a statically linked, self-decompressing binary
Fixes #63
Diffstat (limited to 'src/patchelf.cc')
| -rw-r--r-- | src/patchelf.cc | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/patchelf.cc b/src/patchelf.cc index 6363395..86195fb 100644 --- a/src/patchelf.cc +++ b/src/patchelf.cc @@ -392,10 +392,13 @@ ElfFile<ElfFileParamNames>::ElfFile(FileContents fileContents) error("wrong ELF type"); if ((size_t) (rdi(hdr->e_phoff) + rdi(hdr->e_phnum) * rdi(hdr->e_phentsize)) > fileContents->size()) - error("missing program headers"); + error("program header table out of bounds"); + + if (rdi(hdr->e_shnum) == 0) + error("no section headers. The input file is probably a statically linked, self-decompressing binary"); if ((size_t) (rdi(hdr->e_shoff) + rdi(hdr->e_shnum) * rdi(hdr->e_shentsize)) > fileContents->size()) - error("missing section headers"); + error("section header table out of bounds"); if (rdi(hdr->e_phentsize) != sizeof(Elf_Phdr)) error("program headers have wrong size"); |