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