mirror/upx
1
0
Fork 0
mirror of https://github.com/upx/upx synced 2025-10-05 19:20:23 +08:00
Code Issues Releases Wiki Activity

Small cleanup.

Browse Source 
committer: mfx <mfx> 1084324395 +0000
This commit is contained in:
Markus F.X.J. Oberhumer 2004-05-12 01:13:15 +00:00
parent 7ce85ab712
commit 90fc32a56e
1 changed files with 12 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
src/p_vmlinz.cpp
View File

@ -198,12 +198,18 @@ int PackVmlinuzI386::decompressKernel()
//printf("fd_pos: %ld, file_size: %ld\n", (long)fd_pos, (long)file_size); //printf("fd_pos: %ld, file_size: %ld\n", (long)fd_pos, (long)file_size);
throwCantPack("trailing bytes after kernel image; use option `-f' to force packing"); throwCantPack("trailing bytes after kernel image; use option `-f' to force packing");
} }
// see /usr/src/linux/arch/i386/kernel/head.S:
if (memcmp(ibuf, "\xFC\xB8", 2) != 0 /* 2.4.x: cld; mov $...,%eax */
&& memcmp(ibuf, "\xFC\x0F\x01", 3) != 0 /* 2.6.x: cld; lgdt ... */ // see /usr/src/linux/arch/i386/kernel/head.S
&& !(0xEA==ibuf[0] /* 2.6.x+grsecurity+strongswan+openwall+trustix: ljmp $0x10,... */ // 2.4.x: cld; mov $...,%eax
&& 0==memcmp(5+ibuf, "\x10\x00", 2)) ) if (memcmp(ibuf, "\xFC\xB8", 2) == 0) goto head_ok;
throwCantPack("unrecognized kernel architecture; use option `-f' to force packing"); // 2.6.x: cld; lgdt ...
if (memcmp(ibuf, "\xFC\x0F\x01", 3) == 0) goto head_ok;
// 2.6.x+grsecurity+strongswan+openwall+trustix: ljmp $0x10,...
if (ibuf[0] == 0xEA && memcmp(ibuf+5, "\x10\x00", 2) == 0) goto head_ok;
throwCantPack("unrecognized kernel architecture; use option `-f' to force packing");
head_ok:
// FIXME: more checks for special magic bytes in ibuf ??? // FIXME: more checks for special magic bytes in ibuf ???
// FIXME: more checks for kernel architecture ??? // FIXME: more checks for kernel architecture ???