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52 lines
1.0 KiB
52 lines
1.0 KiB
4 months ago
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// RUN: %clang_analyze_cc1 \
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// RUN: -analyzer-checker=alpha.security.cert.pos.34c\
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// RUN: -verify %s
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#include "../Inputs/system-header-simulator.h"
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void free(void *memblock);
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void *malloc(size_t size);
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int putenv(char *);
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int rand();
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namespace test_auto_var_used_good {
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extern char *ex;
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int test_extern() {
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return putenv(ex); // no-warning: extern storage class.
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}
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void foo(void) {
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char *buffer = (char *)"huttah!";
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if (rand() % 2 == 0) {
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buffer = (char *)malloc(5);
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strcpy(buffer, "woot");
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}
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putenv(buffer);
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}
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void bar(void) {
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char *buffer = (char *)malloc(5);
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strcpy(buffer, "woot");
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if (rand() % 2 == 0) {
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free(buffer);
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buffer = (char *)"blah blah blah";
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}
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putenv(buffer);
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}
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void baz() {
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char env[] = "NAME=value";
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// TODO: False Positive
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putenv(env);
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// expected-warning@-1 {{The 'putenv' function should not be called with arguments that have automatic storage}}
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/*
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DO SOMETHING
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*/
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putenv((char *)"NAME=anothervalue");
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}
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} // namespace test_auto_var_used_good
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