[PATCH] D92764: [analyzer][StdLibraryFunctionsChecker] Make close and mmap to accept -1 as fd

[Gabor Marton via Phabricator via cfe-commits]

martong updated this revision to Diff 309931.
martong marked an inline comment as done.
martong added a comment.

- Use -1 for mmap too


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D92764/new/

https://reviews.llvm.org/D92764

Files:
  clang/lib/StaticAnalyzer/Checkers/StdLibraryFunctionsChecker.cpp


Index: clang/lib/StaticAnalyzer/Checkers/StdLibraryFunctionsChecker.cpp
===================================================================
--- clang/lib/StaticAnalyzer/Checkers/StdLibraryFunctionsChecker.cpp
+++ clang/lib/StaticAnalyzer/Checkers/StdLibraryFunctionsChecker.cpp
@@ -1672,7 +1672,7 @@
     addToFunctionSummaryMap("close", Signature(ArgTypes{IntTy}, RetType{IntTy}),
                             Summary(NoEvalCall)
                                 .ArgConstraint(ArgumentCondition(
-                                    0, WithinRange, Range(0, IntMax))));
+                                    0, WithinRange, Range(-1, IntMax))));
 
     // long fpathconf(int fildes, int name);
     addToFunctionSummaryMap("fpathconf",
@@ -1734,7 +1734,7 @@
         Summary(NoEvalCall)
             .ArgConstraint(ArgumentCondition(1, WithinRange, Range(1, SizeMax)))
             .ArgConstraint(
-                ArgumentCondition(4, WithinRange, Range(0, IntMax))));
+                ArgumentCondition(4, WithinRange, Range(-1, IntMax))));
 
     Optional<QualType> Off64_tTy = lookupTy("off64_t");
     // void *mmap64(void *addr, size_t length, int prot, int flags, int fd,
@@ -1746,7 +1746,7 @@
         Summary(NoEvalCall)
             .ArgConstraint(ArgumentCondition(1, WithinRange, Range(1, SizeMax)))
             .ArgConstraint(
-                ArgumentCondition(4, WithinRange, Range(0, IntMax))));
+                ArgumentCondition(4, WithinRange, Range(-1, IntMax))));
 
     // int pipe(int fildes[2]);
     addToFunctionSummaryMap(


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