test/Analysis/chroot.c

   1 // RUN: %clang_cc1 -analyze -analyzer-check-objc-mem -analyzer-checker=unix.experimental.Chroot -analyzer-store region -verify %s
   2
   3 extern int chroot(const char* path);
   4 extern int chdir(const char* path);
   5
   6 void foo(void) {
   7 }
   8
   9 void f1(void) {
  10   chroot("/usr/local"); // root changed.
  11   foo(); // expected-warning {{No call of chdir("/") immediately after chroot}}
  12 }
  13
  14 void f2(void) {
  15   chroot("/usr/local"); // root changed.
  16   chdir("/"); // enter the jail.
  17   foo(); // no-warning
  18 }
  19
  20 void f3(void) {
  21   chroot("/usr/local"); // root changed.
  22   chdir("../"); // change working directory, still out of jail.
  23   foo(); // expected-warning {{No call of chdir("/") immediately after chroot}}
  24 }