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e600025528
This will never happen in the analyzed code code, but can happen for checkers that over-eagerly dereference pointers without checking that it's safe. UnknownVal is a harmless enough value to get back. Fixes an issue added in r189590, caught by our internal buildbot. llvm-svn: 189688
36 lines
903 B
C++
36 lines
903 B
C++
// RUN: %clang_cc1 -analyze -analyzer-checker=alpha.security.taint,debug.TaintTest %s -verify
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// expected-no-diagnostics
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typedef struct _FILE FILE;
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typedef __typeof(sizeof(int)) size_t;
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extern FILE *stdin;
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typedef long ssize_t;
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ssize_t getline(char ** __restrict, size_t * __restrict, FILE * __restrict);
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int printf(const char * __restrict, ...);
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int snprintf(char *, size_t, const char *, ...);
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void free(void *ptr);
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struct GetLineTestStruct {
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ssize_t getline(char ** __restrict, size_t * __restrict, FILE * __restrict);
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};
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void getlineTest(void) {
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FILE *fp;
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char *line = 0;
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size_t len = 0;
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ssize_t read;
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struct GetLineTestStruct T;
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while ((read = T.getline(&line, &len, stdin)) != -1) {
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printf("%s", line); // no warning
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}
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free(line);
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}
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class opaque;
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void testOpaqueClass(opaque *obj) {
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char buf[20];
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snprintf(buf, 20, "%p", obj); // don't crash trying to load *obj
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}
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