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| author | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2013-10-22 12:24:48 +0000 |
|---|---|---|
| committer | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2013-10-22 12:24:48 +0000 |
| commit | 285d458935bc2f9d8ec1109de01ed66185062349 (patch) | |
| tree | ef66891f561b7bbc27119f0bffa58a5dd77971cb | |
| parent | 137a9b84c25f1ad7d68a14f138cf270a03a738cb (diff) | |
| download | compiler-rt-285d458935bc2f9d8ec1109de01ed66185062349.tar.gz compiler-rt-285d458935bc2f9d8ec1109de01ed66185062349.tar.bz2 compiler-rt-285d458935bc2f9d8ec1109de01ed66185062349.tar.xz | |
[sanitizer] Intercept initgroups.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@193158 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/msan/lit_tests/initgroups.cc | 11 | ||||
| -rw-r--r-- | lib/sanitizer_common/sanitizer_common_interceptors.inc | 14 | ||||
| -rw-r--r-- | lib/sanitizer_common/sanitizer_platform_interceptors.h | 1 | ||||
| -rw-r--r-- | lib/tsan/rtl/tsan_stat.cc | 1 | ||||
| -rw-r--r-- | lib/tsan/rtl/tsan_stat.h | 1 |
5 files changed, 28 insertions, 0 deletions
diff --git a/lib/msan/lit_tests/initgroups.cc b/lib/msan/lit_tests/initgroups.cc new file mode 100644 index 00000000..adba5369 --- /dev/null +++ b/lib/msan/lit_tests/initgroups.cc @@ -0,0 +1,11 @@ +// RUN: %clangxx_msan -m64 -O0 %s -o %t && %t + +#include <sys/types.h> +#include <grp.h> + +int main(void) { + initgroups("root", 0); + // The above fails unless you are root. Does not matter, MSan false positive + // (which we are testing for) happens anyway. + return 0; +} diff --git a/lib/sanitizer_common/sanitizer_common_interceptors.inc b/lib/sanitizer_common/sanitizer_common_interceptors.inc index d8d21b4e..1b736ade 100644 --- a/lib/sanitizer_common/sanitizer_common_interceptors.inc +++ b/lib/sanitizer_common/sanitizer_common_interceptors.inc @@ -2408,6 +2408,19 @@ INTERCEPTOR(int, fstatvfs64, int fd, void *buf) { #define INIT_STATVFS64 #endif +#if SANITIZER_INTERCEPT_INITGROUPS +INTERCEPTOR(int, initgroups, char *user, u32 group) { + void *ctx; + COMMON_INTERCEPTOR_ENTER(ctx, initgroups, user, group); + if (user) COMMON_INTERCEPTOR_READ_RANGE(ctx, user, REAL(strlen)(user) + 1); + int res = REAL(initgroups)(user, group); + return res; +} +#define INIT_INITGROUPS INTERCEPT_FUNCTION(initgroups); +#else +#define INIT_INITGROUPS +#endif + #define SANITIZER_COMMON_INTERCEPTORS_INIT \ INIT_STRCMP; \ INIT_STRNCMP; \ @@ -2498,4 +2511,5 @@ INTERCEPTOR(int, fstatvfs64, int fd, void *buf) { INIT_STATFS64; \ INIT_STATVFS; \ INIT_STATVFS64; \ + INIT_INITGROUPS; \ /**/ diff --git a/lib/sanitizer_common/sanitizer_platform_interceptors.h b/lib/sanitizer_common/sanitizer_platform_interceptors.h index 312b073b..01bddd2c 100644 --- a/lib/sanitizer_common/sanitizer_platform_interceptors.h +++ b/lib/sanitizer_common/sanitizer_platform_interceptors.h @@ -132,6 +132,7 @@ # define SANITIZER_INTERCEPT_STATFS64 SI_MAC || SI_LINUX_NOT_ANDROID # define SANITIZER_INTERCEPT_STATVFS SI_LINUX_NOT_ANDROID # define SANITIZER_INTERCEPT_STATVFS64 SI_LINUX_NOT_ANDROID +# define SANITIZER_INTERCEPT_INITGROUPS SI_NOT_WINDOWS # define SANITIZER_INTERCEPT__EXIT SI_LINUX diff --git a/lib/tsan/rtl/tsan_stat.cc b/lib/tsan/rtl/tsan_stat.cc index bc1ce9d0..971e739c 100644 --- a/lib/tsan/rtl/tsan_stat.cc +++ b/lib/tsan/rtl/tsan_stat.cc @@ -384,6 +384,7 @@ void StatOutput(u64 *stat) { name[StatInt_statvfs64] = " statvfs64 "; name[StatInt_fstatvfs] = " fstatvfs "; name[StatInt_fstatvfs64] = " fstatvfs64 "; + name[StatInt_initgroups] = " initgroups "; name[StatAnnotation] = "Dynamic annotations "; name[StatAnnotateHappensBefore] = " HappensBefore "; diff --git a/lib/tsan/rtl/tsan_stat.h b/lib/tsan/rtl/tsan_stat.h index a3deef85..237a8921 100644 --- a/lib/tsan/rtl/tsan_stat.h +++ b/lib/tsan/rtl/tsan_stat.h @@ -379,6 +379,7 @@ enum StatType { StatInt_statvfs64, StatInt_fstatvfs, StatInt_fstatvfs64, + StatInt_initgroups, // Dynamic annotations. StatAnnotation, |