csparser: do not reject <Unknown> produced by symbiotic2cs

Fixes: #37
Closes: #38

Author: kdudka

src/csparser.cc

@@ -155,7 +155,7 @@ class ErrFileLexer {
             RE("^Error: *(" RE_CHECKER_NAME ")( *\\([^)]+\\))? *:(?: \\[#def[0-9]+\\])?$");
 
         const RE reEvent_ =
-            RE(/* location */ "^([^:]+)(?::([0-9]+|<unknown>))?(?::([0-9]+))?"
+            RE(/* location */ "^([^:]+)(?::([0-9]+|<[Uu]nknown>))?(?::([0-9]+))?"
                /* evt/mesg */ ": (" RE_EVENT "): (.*)$");
 };
 

tests/csgrep/79-csparser-symbiotic-args.txt

@@ -0,0 +1 @@
+--mode=json

tests/csgrep/79-csparser-symbiotic-stdin.txt

@@ -0,0 +1,11 @@
+Error: SYMBIOTIC_WARNING:
+<Unknown>:<Unknown>: error: memory error: out of bound pointer
+/builddir/build/BUILD/gnupg-2.3.2/common/membuf.c:114: note: call stack: function put_membuf (=0, =0, =3)
+/builddir/build/BUILD/gnupg-2.3.2/common/membuf.c:136: note: call stack: function put_membuf_str (=0, =0)
+/builddir/build/BUILD/gnupg-2.3.2/common/mapstrings.c:156: note: call stack: function map_static_macro_string (=0)
+/builddir/build/BUILD/gnupg-2.3.2/common/t-mapstrings.c:68: note: call stack: function test_map_static_macro_string ()
+/builddir/build/BUILD/gnupg-2.3.2/common/t-mapstrings.c:97: note: call stack: function main (=2, =0)
+<Unknown>:<Unknown>: note: Additional Info: address: 255:0
+<Unknown>:<Unknown>: note: Additional Info: pointing to: none
+/builddir/build/BUILD/gnupg-2.3.2/common/membuf.c:52:13: note: Non-deterministic values: gcry_malloc: len 8 bytes, [0xff|7 times 0x0] (i64: 255)
+/builddir/build/BUILD/gnupg-2.3.2/common/membuf.c:52:13 (offset): note: Non-deterministic values: gcry_malloc: len 8 bytes, [8 times 0x0] (i64: 0)

tests/csgrep/79-csparser-symbiotic-stdout.txt

@@ -0,0 +1,74 @@
+{
+    "defects": [
+        {
+            "checker": "SYMBIOTIC_WARNING",
+            "key_event_idx": 0,
+            "events": [
+                {
+                    "file_name": "<Unknown>",
+                    "line": 0,
+                    "event": "error",
+                    "message": "memory error: out of bound pointer",
+                    "verbosity_level": "0"
+                },
+                {
+                    "file_name": "/builddir/build/BUILD/gnupg-2.3.2/common/membuf.c",
+                    "line": 114,
+                    "event": "note",
+                    "message": "call stack: function put_membuf (=0, =0, =3)",
+                    "verbosity_level": "1"
+                },
+                {
+                    "file_name": "/builddir/build/BUILD/gnupg-2.3.2/common/membuf.c",
+                    "line": 136,
+                    "event": "note",
+                    "message": "call stack: function put_membuf_str (=0, =0)",
+                    "verbosity_level": "1"
+                },
+                {
+                    "file_name": "/builddir/build/BUILD/gnupg-2.3.2/common/mapstrings.c",
+                    "line": 156,
+                    "event": "note",
+                    "message": "call stack: function map_static_macro_string (=0)",
+                    "verbosity_level": "1"
+                },
+                {
+                    "file_name": "/builddir/build/BUILD/gnupg-2.3.2/common/t-mapstrings.c",
+                    "line": 68,
+                    "event": "note",
+                    "message": "call stack: function test_map_static_macro_string ()",
+                    "verbosity_level": "1"
+                },
+                {
+                    "file_name": "/builddir/build/BUILD/gnupg-2.3.2/common/t-mapstrings.c",
+                    "line": 97,
+                    "event": "note",
+                    "message": "call stack: function main (=2, =0)",
+                    "verbosity_level": "1"
+                },
+                {
+                    "file_name": "<Unknown>",
+                    "line": 0,
+                    "event": "note",
+                    "message": "Additional Info: address: 255:0",
+                    "verbosity_level": "1"
+                },
+                {
+                    "file_name": "<Unknown>",
+                    "line": 0,
+                    "event": "note",
+                    "message": "Additional Info: pointing to: none",
+                    "verbosity_level": "1"
+                },
+                {
+                    "file_name": "/builddir/build/BUILD/gnupg-2.3.2/common/membuf.c",
+                    "line": 52,
+                    "column": 13,
+                    "event": "note",
+                    "message": "Non-deterministic values: gcry_malloc: len 8 bytes, [0xff|7 times 0x0] (i64: 255)\n/builddir/build/BUILD/gnupg-2.3.2/common/membuf.c:52:13 (offset): note: Non-deterministic values: gcry_malloc: len 8 bytes, [8 times 0x0] (i64: 0)",
+                    "verbosity_level": "1"
+                }
+            ]
+        }
+    ]
+}

tests/csgrep/CMakeLists.txt

@@ -122,3 +122,4 @@ test_csgrep("75-coverity-from-cshtml"                 )
 test_csgrep("76-filter-file-basic"                    )
 test_csgrep("77-filter-file-checker-regex"            )
 test_csgrep("78-json-parser-snyk-code"                )
+test_csgrep("79-csparser-symbiotic"                   )