SYS-OSS/FRET-LibAFL
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Use SHMEM_FUZZ_HDR_SIZE constant (#695)

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* Fix misuse of SHMEM_FUZZ_HDR_SIZE

* fix `cargo fmt`

Co-authored-by: syheliel <syheliel@gmail.com>
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syheliel 2022-07-08 15:45:56 +08:00 committed by GitHub
parent 7870a6e699
commit 253c6b5bdc
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1 changed files with 3 additions and 1 deletions
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libafl/src/executors/forkserver.rs
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@ -44,6 +44,7 @@ const FS_OPT_ENABLED: i32 = 0x80000001_u32 as i32;
const FS_OPT_SHDMEM_FUZZ: i32 = 0x01000000_u32 as i32;
#[allow(clippy::cast_possible_wrap)]
const FS_OPT_AUTODICT: i32 = 0x10000000_u32 as i32;
/// The length of header bytes which tells shmem size
const SHMEM_FUZZ_HDR_SIZE: usize = 4;
const MAX_FILE: usize = 1024 * 1024;
@ -870,7 +871,8 @@ where
let size = target_bytes.as_slice().len();
let size_in_bytes = size.to_ne_bytes();
// The first four bytes tells the size of the shmem.
map.as_mut_slice()[..4].copy_from_slice(&size_in_bytes[..4]);
map.as_mut_slice()[..SHMEM_FUZZ_HDR_SIZE]
.copy_from_slice(&size_in_bytes[..SHMEM_FUZZ_HDR_SIZE]);
map.as_mut_slice()[SHMEM_FUZZ_HDR_SIZE..(SHMEM_FUZZ_HDR_SIZE + size)]
.copy_from_slice(target_bytes.as_slice());
}