C Sharp stacktrace parsing (#186)

casr/src/bin/casr-cli.rs

@@ -469,6 +469,16 @@ fn build_tree_report(
         tree.collapse_item(row);
     }
 
+    if !report.csharp_report.is_empty() {
+        row = tree
+            .insert_container_item("CSharpReport".to_string(), Placement::After, row)
+            .unwrap();
+        report.csharp_report.iter().for_each(|e| {
+            tree.insert_item(e.clone(), Placement::LastChild, row);
+        });
+        tree.collapse_item(row);
+    }
+
     if !report.source.is_empty() {
         row = tree
             .insert_container_item("Source".to_string(), Placement::After, row)
@@ -655,6 +665,10 @@ fn build_slider_report(
         select.add_item("JsReport", report.js_report.join("\n"));
     }
 
+    if !report.csharp_report.is_empty() {
+        select.add_item("CSharpReport", report.csharp_report.join("\n"));
+    }
+
     if !report.source.is_empty() {
         select.add_item("Source", report.source.join("\n"));
     }

libcasr/fuzz/fuzz_targets/parse_stacktrace.rs

@@ -10,6 +10,7 @@ use libcasr::{
     java::JavaStacktrace,
     python::PythonStacktrace,
     js::JsStacktrace,
+    csharp::CSharpStacktrace,
     stacktrace::{CrashLineExt, Filter, ParseStacktrace, Stacktrace},
 };
 
@@ -18,8 +19,8 @@ fuzz_target!(|data: &[u8]| {
         return;
     }
     let s = String::from_utf8_lossy(&data[1..]);
-    init_ignored_frames!("cpp", "rust", "python", "go", "java", "js");
-    match data[0] % 6 {
+    init_ignored_frames!("cpp", "rust", "python", "go", "java", "js", "csharp");
+    match data[0] % 7 {
         0 => {
             // Asan
             if let Ok(raw) = AsanStacktrace::extract_stacktrace(&s) {
@@ -60,6 +61,14 @@ fuzz_target!(|data: &[u8]| {
                 }
             }
         }
+        5 => {
+            // C#
+            if let Ok(raw) = CSharpStacktrace::extract_stacktrace(&s) {
+                if let Ok(st) = CSharpStacktrace::parse_stacktrace(&raw) {
+                    let _ = st.crash_line();
+                }
+            }
+        }
         _ => {
             // Gdb
             if let Ok(raw) = GdbStacktrace::extract_stacktrace(&s) {

libcasr/fuzz/init_corpus/csharp

@@ -0,0 +1,10 @@
+Unhandled Exception:
+System.IndexOutOfRangeException: Index was outside the bounds of the array.
+  at B..ctor () [0x00008] in /home/user/mono/src/2.cs:33 
+  at A`1+<>c[T].<set_Q>b__1_1 () [0x00001] in /home/user/mono/src/2.cs:14 
+  at A`1[T].h[Z] (System.Func`1[TResult] a) [0x00001] in /home/user/mono/src/2.cs:25 
+  at A`1[T].<set_Q>g__g|1_0 (System.Int32[] arr) [0x00001] in /home/user/mono/src/2.cs:12 
+  at A`1[T].set_Q (System.Int32 value) [0x00002] in /home/user/mono/src/2.cs:19 
+  at Program+<>c.<Main>b__0_2 (System.Int32 i) [0x00000] in /home/user/mono/src/1.cs:8 
+  at Program.<Main>g__f|0_0 (System.Func`2[T,TResult] d, System.Int32& l, System.Int32 m) [0x00021] in /home/user/mono/src/1.cs:9 
+  at Program.Main () [0x00004] in /home/user/mono/src/1.cs:13

libcasr/fuzz/init_corpus/gdb

@@ -1,4 +1,4 @@
-     #0  0x00000000005e3099 in xlnt::detail::compound_document::read_directory (this=0x7fffffffcee0) at /xlnt/source/detail/cryptography/compound_document.cpp:975
+     #0  0x00000000005e3099 in xlnt::detail::compound_document::read_directory (this=0x7fffffffcee0) at /xlnt/source/detail/cryptography/compound_document.cpp:975
      #1  0x00000000005e2956 in xlnt::detail::compound_document::compound_document (this=0x7fffffffcee0, in=...) at /xlnt/source/detail/cryptography/compound_document.cpp:517
      #2  0x000000000048a45c in (anonymous namespace)::decrypt_xlsx (bytes=std::vector of length 18655, capacity 32768 = {...}, password=u\"VelvetSweatshop\") at /xlnt/source/detail/cryptography/xlsx_crypto_consumer.cpp:320
      #3  0x000000000048a2d9 in xlnt::detail::decrypt_xlsx (data=std::vector of length 18655, capacity 32768 = {...}, password=) at /xlnt/source/detail/cryptography/xlsx_crypto_consumer.cpp:339

libcasr/src/constants.rs

@@ -228,6 +228,12 @@ pub const STACK_FRAME_FUNCTION_IGNORE_REGEXES_CPP: &[&str] = &[
     r"^atheris::",
 ];
 
+/// Regular expressions for с# functions to be ignored.
+pub const STACK_FRAME_FUNCTION_IGNORE_REGEXES_CSHARP: &[&str] = &[
+    // TODO
+    r"^\(wrapper",
+];
+
 /// Regular expressions for paths to java files that should be ignored.
 pub const STACK_FRAME_FILEPATH_IGNORE_REGEXES_JAVA: &[&str] = &[
     // TODO
@@ -313,6 +319,12 @@ pub const STACK_FRAME_FILEPATH_IGNORE_REGEXES_CPP: &[&str] = &[
     r".*asan_with_fuzzer\.so",
 ];
 
+/// Regular expressions for paths to c# files that should be ignored.
+pub const STACK_FRAME_FILEPATH_IGNORE_REGEXES_CSHARP: &[&str] = &[
+    // TODO
+    r"^[^.]$",
+];
+
 // Signal numbers
 pub const SIGINFO_SIGILL: u32 = 4;
 pub const SIGINFO_SIGTRAP: u32 = 5;