25 lines
		
	
	
		
			652 B
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			25 lines
		
	
	
		
			652 B
		
	
	
	
		
			C
		
	
	
	
	
	
| // RUN: %clang_cc1 -analyze -analyzer-checker=alpha.unix.Chroot -analyzer-store region -verify %s
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| 
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| extern int chroot(const char* path);
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| extern int chdir(const char* path);
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| 
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| void foo(void) {
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| }
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| 
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| void f1(void) {
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|   chroot("/usr/local"); // root changed.
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|   foo(); // expected-warning {{No call of chdir("/") immediately after chroot}}
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| }
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| 
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| void f2(void) {
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|   chroot("/usr/local"); // root changed.
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|   chdir("/"); // enter the jail.
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|   foo(); // no-warning
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| }
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| 
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| void f3(void) {
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|   chroot("/usr/local"); // root changed.
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|   chdir("../"); // change working directory, still out of jail.
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|   foo(); // expected-warning {{No call of chdir("/") immediately after chroot}}
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| }
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