format

afl/src/mutators/mutations.rs

@@ -33,18 +33,44 @@ where
 const ARITH_MAX: u64 = 35;
 
 const INTERESTING_8: [i8; 9] = [-128, -1, 0, 1, 16, 32, 64, 100, 127];
-const INTERESTING_16: [i16; 19] = [-128, -1, 0, 1, 16, 32, 64, 100, 127, -32768, -129, 128, 255, 256, 512, 1000, 1024, 4096, 32767];
+const INTERESTING_16: [i16; 19] = [
-const INTERESTING_32: [i32; 27] = [-128, -1, 0, 1, 16, 32, 64, 100, 127, -32768, -129, 128, 255, 256, 512, 1000, 1024, 4096, 32767, -2147483648, -100663046, -32769, 32768, 65535, 65536, 100663045, 2147483647];
+    -128, -1, 0, 1, 16, 32, 64, 100, 127, -32768, -129, 128, 255, 256, 512, 1000, 1024, 4096, 32767,
+];
+const INTERESTING_32: [i32; 27] = [
+    -128,
+    -1,
+    0,
+    1,
+    16,
+    32,
+    64,
+    100,
+    127,
+    -32768,
+    -129,
+    128,
+    255,
+    256,
+    512,
+    1000,
+    1024,
+    4096,
+    32767,
+    -2147483648,
+    -100663046,
+    -32769,
+    32768,
+    65535,
+    65536,
+    100663045,
+    2147483647,
+];
 
 fn self_mem_move(data: &mut [u8], from: usize, to: usize, len: usize) {
     debug_assert!(from + len <= data.len());
     debug_assert!(to + len <= data.len());
     let ptr = data.as_mut_ptr();
-    unsafe {
+    unsafe { core::ptr::copy(ptr.offset(from as isize), ptr.offset(to as isize), len) }
-        core::ptr::copy(ptr.offset(from as isize),
-        ptr.offset(to as isize),
-        len)
-    }
 }
 
 fn mem_move(dst: &mut [u8], src: &[u8], from: usize, to: usize, len: usize) {
@@ -53,18 +79,18 @@ fn mem_move(dst: &mut [u8], src: &[u8], from: usize, to: usize, len: usize) {
     let dst_ptr = dst.as_mut_ptr();
     let src_ptr = src.as_ptr();
     unsafe {
-        core::ptr::copy(src_ptr.offset(from as isize),
+        core::ptr::copy(
+            src_ptr.offset(from as isize),
             dst_ptr.offset(to as isize),
-        len)
+            len,
+        )
     }
 }
 
 fn mem_set(data: &mut [u8], from: usize, len: usize, val: u8) {
     debug_assert!(from + len <= data.len());
     let ptr = data.as_mut_ptr();
-    unsafe {
+    unsafe { core::ptr::write_bytes(ptr.offset(from as isize), val, len) }
-        core::ptr::write_bytes(ptr.offset(from as isize), val, len)
-    }
 }
 
 /// Bitflip mutation for inputs with a bytes vector
@@ -227,7 +253,7 @@ where
     if input.bytes().len() <= 1 {
         Ok(MutationResult::Skipped)
     } else {
-        let idx = rand.below(input.bytes().len() as u64 -1) as usize;
+        let idx = rand.below(input.bytes().len() as u64 - 1) as usize;
         unsafe {
             // moar speed, no bound check
             let ptr = input.bytes_mut().get_unchecked_mut(idx) as *mut u8;
@@ -256,7 +282,7 @@ where
     if input.bytes().len() <= 1 {
         Ok(MutationResult::Skipped)
     } else {
-        let idx = rand.below(input.bytes().len() as u64 -1) as usize;
+        let idx = rand.below(input.bytes().len() as u64 - 1) as usize;
         unsafe {
             // moar speed, no bound check
             let ptr = input.bytes_mut().get_unchecked_mut(idx) as *mut _ as *mut u16;
@@ -287,7 +313,7 @@ where
     if input.bytes().len() <= 1 {
         Ok(MutationResult::Skipped)
     } else {
-        let idx = rand.below(input.bytes().len() as u64 -1) as usize;
+        let idx = rand.below(input.bytes().len() as u64 - 1) as usize;
         unsafe {
             // moar speed, no bound check
             let ptr = input.bytes_mut().get_unchecked_mut(idx) as *mut _ as *mut u32;
@@ -318,7 +344,7 @@ where
     if input.bytes().len() <= 1 {
         Ok(MutationResult::Skipped)
     } else {
-        let idx = rand.below(input.bytes().len() as u64 -1) as usize;
+        let idx = rand.below(input.bytes().len() as u64 - 1) as usize;
         unsafe {
             // moar speed, no bound check
             let ptr = input.bytes_mut().get_unchecked_mut(idx) as *mut _ as *mut u64;
@@ -349,7 +375,7 @@ where
     if input.bytes().len() <= 1 {
         Ok(MutationResult::Skipped)
     } else {
-        let idx = rand.below(input.bytes().len() as u64 -1) as usize;
+        let idx = rand.below(input.bytes().len() as u64 - 1) as usize;
         let val = INTERESTING_8[rand.below(INTERESTING_8.len() as u64) as usize] as u8;
         unsafe {
             // moar speed, no bound check
@@ -374,7 +400,7 @@ where
     if input.bytes().len() <= 1 {
         Ok(MutationResult::Skipped)
     } else {
-        let idx = rand.below(input.bytes().len() as u64 -1) as usize;
+        let idx = rand.below(input.bytes().len() as u64 - 1) as usize;
         let val = INTERESTING_16[rand.below(INTERESTING_8.len() as u64) as usize] as u16;
         unsafe {
             // moar speed, no bound check
@@ -404,7 +430,7 @@ where
     if input.bytes().len() <= 1 {
         Ok(MutationResult::Skipped)
     } else {
-        let idx = rand.below(input.bytes().len() as u64 -1) as usize;
+        let idx = rand.below(input.bytes().len() as u64 - 1) as usize;
         let val = INTERESTING_32[rand.below(INTERESTING_8.len() as u64) as usize] as u32;
         unsafe {
             // moar speed, no bound check
@@ -459,7 +485,7 @@ where
     let off = if size == 0 {
         0
     } else {
-        rand.below(size as u64 -1)
+        rand.below(size as u64 - 1)
     } as usize;
     let len = rand.below(core::cmp::min(16, mutator.max_size() as u64)) as usize;
 
@@ -484,7 +510,7 @@ where
     let off = if size == 0 {
         0
     } else {
-        rand.below(size as u64 -1)
+        rand.below(size as u64 - 1)
     } as usize;
     let len = rand.below(core::cmp::min(16, mutator.max_size() as u64)) as usize;
 
@@ -511,7 +537,7 @@ where
     let off = if size == 0 {
         0
     } else {
-        rand.below(size as u64 -1)
+        rand.below(size as u64 - 1)
     } as usize;
     let len = rand.below(core::cmp::min(16, mutator.max_size() as u64)) as usize;
 
@@ -540,7 +566,11 @@ where
     }
 
     let val = input.bytes()[rand.below(size as u64) as usize];
-    let start = if size == 1 { 0 } else { rand.below(size as u64 -1) as usize };
+    let start = if size == 1 {
+        0
+    } else {
+        rand.below(size as u64 - 1) as usize
+    };
     let end = rand.below((size - start) as u64) as usize;
     mem_set(input.bytes_mut(), start, end - start, val);
     Ok(MutationResult::Mutated)
@@ -564,7 +594,11 @@ where
     }
 
     let val = rand.below(256) as u8;
-    let start = if size == 1 { 0 } else { rand.below(size as u64 -1) as usize };
+    let start = if size == 1 {
+        0
+    } else {
+        rand.below(size as u64 - 1) as usize
+    };
     let end = rand.below((size - start) as u64) as usize;
     mem_set(input.bytes_mut(), start, end - start, val);
     Ok(MutationResult::Mutated)
@@ -587,8 +621,8 @@ where
         return Ok(MutationResult::Skipped);
     }
 
-    let from = rand.below(input.bytes().len() as u64 -1) as usize;
+    let from = rand.below(input.bytes().len() as u64 - 1) as usize;
-    let to = rand.below(input.bytes().len() as u64 -1) as usize;
+    let to = rand.below(input.bytes().len() as u64 - 1) as usize;
     let len = rand.below((size - core::cmp::max(from, to)) as u64) as usize;
 
     self_mem_move(input.bytes_mut(), from, to, len);
@@ -612,8 +646,8 @@ where
         return Ok(MutationResult::Skipped);
     }
 
-    let first = rand.below(input.bytes().len() as u64 -1) as usize;
+    let first = rand.below(input.bytes().len() as u64 - 1) as usize;
-    let second = rand.below(input.bytes().len() as u64 -1) as usize;
+    let second = rand.below(input.bytes().len() as u64 - 1) as usize;
     let len = rand.below((size - core::cmp::max(first, second)) as u64) as usize;
 
     let tmp = input.bytes()[first..len].to_vec();
@@ -622,8 +656,6 @@ where
     Ok(MutationResult::Mutated)
 }
 
-
-
 /// Returns the first and last diff position between the given vectors, stopping at the min len
 fn locate_diffs(this: &[u8], other: &[u8]) -> (i64, i64) {
     let mut first_diff: i64 = -1;