vendor/clang/clang-release_32-r168974

1 files changed, 78 insertions, 0 deletions

diff --git a/test/Analysis/simple-stream-checks.c b/test/Analysis/simple-stream-checks.c
new file mode 100644
index 000000000000..2f09e5dd20e4
--- /dev/null
+++ b/test/Analysis/simple-stream-checks.c
@@ -0,0 +1,78 @@
+// RUN: %clang_cc1 -analyze -analyzer-checker=core,alpha.unix.SimpleStream -verify %s
+
+#include "Inputs/system-header-simulator-for-simple-stream.h"
+
+void checkDoubleFClose(int *Data) {
+  FILE *F = fopen("myfile.txt", "w");
+  if (F != 0) {
+    fputs ("fopen example", F);
+    if (!Data)
+      fclose(F);
+    else
+      fputc(*Data, F);
+    fclose(F); // expected-warning {{Closing a previously closed file stream}}
+  }
+}
+
+int checkLeak(int *Data) {
+  FILE *F = fopen("myfile.txt", "w");
+  if (F != 0) {
+    fputs ("fopen example", F);
+  }
+
+  if (Data) // expected-warning {{Opened file is never closed; potential resource leak}}
+    return *Data;
+  else
+    return 0;
+}
+
+void checkLeakFollowedByAssert(int *Data) {
+  FILE *F = fopen("myfile.txt", "w");
+  if (F != 0) {
+    fputs ("fopen example", F);
+    if (!Data)
+      exit(0);
+    fclose(F);
+  }
+}
+
+void CloseOnlyOnValidFileHandle() {
+  FILE *F = fopen("myfile.txt", "w");
+  if (F)
+    fclose(F);
+  int x = 0; // no warning
+}
+
+void leakOnEnfOfPath1(int *Data) {
+  FILE *F = fopen("myfile.txt", "w");// expected-warning {{Opened file is never closed; potential resource leak}}
+}
+
+void leakOnEnfOfPath2(int *Data) {
+  FILE *F = fopen("myfile.txt", "w");
+  return; // expected-warning {{Opened file is never closed; potential resource leak}}
+}
+
+FILE *leakOnEnfOfPath3(int *Data) {
+  FILE *F = fopen("myfile.txt", "w");
+  return F;
+}
+
+void myfclose(FILE *F);
+void SymbolEscapedThroughFunctionCall() {
+  FILE *F = fopen("myfile.txt", "w");
+  myfclose(F);
+  return; // no warning
+}
+
+FILE *GlobalF;
+void SymbolEscapedThroughAssignmentToGloabl() {
+  FILE *F = fopen("myfile.txt", "w");
+  GlobalF = F;
+  return; // no warning
+}
+
+void SymbolDoesNotEscapeThoughStringAPIs(char *Data) {
+  FILE *F = fopen("myfile.txt", "w");
+  fputc(*Data, F);
+  return; // expected-warning {{Opened file is never closed; potential resource leak}}
+}