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-rw-r--r--test/Analysis/simple-stream-checks.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/test/Analysis/simple-stream-checks.c b/test/Analysis/simple-stream-checks.c
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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}}
+}