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HardenedBSD Package Manager
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Commits › cd26e00
On recent current new sections has been added to elf notes, make sure to really take the NT_VERSION section
Baptiste Daroussin committed 14 years ago
commit cd26e0057f820a68da8aa7bd4a301260d94b0a5f
parent 65c6411
2 files changed +13 -5
modified libpkg/pkg_elf.c
@@ -273,9 +273,9 @@ pkg_get_myarch(char *dest, size_t sz)
	Elf_Note note;

	Elf_Scn *scn = NULL;

	int fd;
- 
	char *src;
+ 
	char *src = NULL;

	char *osname;
- 
	uint32_t version;
+ 
	uint32_t version = 0;

	int ret = EPKG_OK;

	int i;

	const char *abi;
@@ -321,10 +321,15 @@ pkg_get_myarch(char *dest, size_t sz)


	data = elf_getdata(scn, NULL);

	src = data->d_buf;
- 
	memcpy(&note, src, sizeof(Elf_Note));
- 
	src += sizeof(Elf_Note);
+ 
	while (1) {
+ 
		memcpy(&note, src, sizeof(Elf_Note));
+ 
		src += sizeof(Elf_Note);
+ 
		if (note.n_type == NT_VERSION)
+ 
			break;
+ 
		src += note.n_namesz + note.n_descsz;
+ 
	}

	osname = src;
- 
	src += roundup2(note.n_namesz, 4);
+ 
	src += note.n_namesz;

	if (elfhdr.e_ident[EI_DATA] == ELFDATA2MSB)

		version = be32dec(src);

	else
modified libpkg/private/elf_tables.h
@@ -69,4 +69,7 @@ struct _elf_corres os_corres[] = {
#define EF_ARM_SOFT_FLOAT	0x200

#define EF_ARM_VFP_FLOAT	0x400
+ 
#define NT_VERSION	1
+ 
#define NT_ARCH	2
+ 


#endif /* ELF_TABLES_H_ */