derek.holloway
7502bf64a4
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74 lines
3.1 KiB
C
74 lines
3.1 KiB
C
// RUN: %clang_analyze_cc1 -analyzer-output=text -Wno-unused %s \
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// RUN: -analyzer-checker=core,security.cert.env.InvalidPtr \
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// RUN: -verify=putenv,common \
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// RUN: -DENV_INVALIDATING_CALL="putenv(\"X=Y\")"
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//
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// RUN: %clang_analyze_cc1 -analyzer-output=text -Wno-unused %s \
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// RUN: -analyzer-checker=core,security.cert.env.InvalidPtr \
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// RUN: -verify=putenvs,common \
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// RUN: -DENV_INVALIDATING_CALL="_putenv_s(\"X\", \"Y\")"
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//
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// RUN: %clang_analyze_cc1 -analyzer-output=text -Wno-unused %s \
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// RUN: -analyzer-checker=core,security.cert.env.InvalidPtr \
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// RUN: -verify=wputenvs,common \
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// RUN: -DENV_INVALIDATING_CALL="_wputenv_s(\"X\", \"Y\")"
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//
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// RUN: %clang_analyze_cc1 -analyzer-output=text -Wno-unused %s \
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// RUN: -analyzer-checker=core,security.cert.env.InvalidPtr \
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// RUN: -verify=setenv,common \
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// RUN: -DENV_INVALIDATING_CALL="setenv(\"X\", \"Y\", 0)"
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//
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// RUN: %clang_analyze_cc1 -analyzer-output=text -Wno-unused %s \
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// RUN: -analyzer-checker=core,security.cert.env.InvalidPtr \
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// RUN: -verify=unsetenv,common \
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// RUN: -DENV_INVALIDATING_CALL="unsetenv(\"X\")"
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typedef int errno_t;
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typedef char wchar_t;
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int putenv(char *string);
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errno_t _putenv_s(const char *varname, const char *value_string);
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errno_t _wputenv_s(const wchar_t *varname, const wchar_t *value_string);
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int setenv(const char *name, const char *value, int overwrite);
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int unsetenv(const char *name);
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void fn_without_body(char **e);
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void fn_with_body(char **e) {}
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void call_env_invalidating_fn(char **e) {
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ENV_INVALIDATING_CALL;
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// putenv-note@-1 5 {{'putenv' call may invalidate the environment parameter of 'main'}}
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// putenvs-note@-2 5 {{'_putenv_s' call may invalidate the environment parameter of 'main'}}
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// wputenvs-note@-3 5 {{'_wputenv_s' call may invalidate the environment parameter of 'main'}}
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// setenv-note@-4 5 {{'setenv' call may invalidate the environment parameter of 'main'}}
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// unsetenv-note@-5 5 {{'unsetenv' call may invalidate the environment parameter of 'main'}}
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*e;
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// common-warning@-1 {{dereferencing an invalid pointer}}
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// common-note@-2 {{dereferencing an invalid pointer}}
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}
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int main(int argc, char *argv[], char *envp[]) {
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char **e = envp;
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*e; // no-warning
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e[0]; // no-warning
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*envp; // no-warning
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call_env_invalidating_fn(e);
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// common-note@-1 5 {{Calling 'call_env_invalidating_fn'}}
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// common-note@-2 4 {{Returning from 'call_env_invalidating_fn'}}
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*e;
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// common-warning@-1 {{dereferencing an invalid pointer}}
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// common-note@-2 {{dereferencing an invalid pointer}}
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*envp;
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// common-warning@-1 2 {{dereferencing an invalid pointer}}
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// common-note@-2 2 {{dereferencing an invalid pointer}}
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fn_without_body(e);
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// common-warning@-1 {{use of invalidated pointer 'e' in a function call}}
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// common-note@-2 {{use of invalidated pointer 'e' in a function call}}
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fn_with_body(e); // no-warning
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}
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