| 1 | // RUN: %clang_analyze_cc1 -analyzer-checker=alpha.unix.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 | } |
|---|
| 25 | |
|---|