diff options
| author | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2016-06-20 17:57:51 +0000 |
|---|---|---|
| committer | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2016-06-20 17:57:51 +0000 |
| commit | 44bd90e3888c279ffe14e2f5c75bcc664423eda5 (patch) | |
| tree | c19e787779ae1d3cf8de043781a887738fdd75d7 /lib | |
| parent | 25d3c2b672490f04f8b62698a94c3cd45f5f43c8 (diff) | |
Hide send/sendto/sendmsg interptors under a flag.
A runtime flag to enable checking in send* interceptors.
Checking is enabled by default.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@273174 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/sanitizer_common/sanitizer_common_interceptors.inc | 12 | ||||
| -rw-r--r-- | lib/sanitizer_common/sanitizer_flags.inc | 3 |
2 files changed, 11 insertions, 4 deletions
diff --git a/lib/sanitizer_common/sanitizer_common_interceptors.inc b/lib/sanitizer_common/sanitizer_common_interceptors.inc index e139598a0..6962659fd 100644 --- a/lib/sanitizer_common/sanitizer_common_interceptors.inc +++ b/lib/sanitizer_common/sanitizer_common_interceptors.inc @@ -2521,7 +2521,8 @@ INTERCEPTOR(SSIZE_T, sendmsg, int fd, struct __sanitizer_msghdr *msg, COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); } SSIZE_T res = REAL(sendmsg)(fd, msg, flags); - if (res >= 0 && msg) read_msghdr(ctx, msg, res); + if (common_flags()->intercept_send && res >= 0 && msg) + read_msghdr(ctx, msg, res); return res; } #define INIT_SENDMSG COMMON_INTERCEPT_FUNCTION(sendmsg); @@ -5623,7 +5624,8 @@ INTERCEPTOR(SSIZE_T, send, int fd, void *buf, SIZE_T len, int flags) { COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); } SSIZE_T res = REAL(send)(fd, buf, len, flags); - if (res > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, Min((SIZE_T)res, len)); + if (common_flags()->intercept_send && res > 0) + COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, Min((SIZE_T)res, len)); return res; } @@ -5635,9 +5637,11 @@ INTERCEPTOR(SSIZE_T, sendto, int fd, void *buf, SIZE_T len, int flags, COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd); COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd); } - if (srcaddr && addrlen) COMMON_INTERCEPTOR_READ_RANGE(ctx, srcaddr, addrlen); + if (common_flags()->intercept_send && srcaddr && addrlen) + COMMON_INTERCEPTOR_READ_RANGE(ctx, srcaddr, addrlen); SSIZE_T res = REAL(sendto)(fd, buf, len, flags, srcaddr, addrlen); - if (res > 0) COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, Min((SIZE_T)res, len)); + if (common_flags()->intercept_send && res > 0) + COMMON_INTERCEPTOR_READ_RANGE(ctx, buf, Min((SIZE_T)res, len)); return res; } #define INIT_SEND_SENDTO \ diff --git a/lib/sanitizer_common/sanitizer_flags.inc b/lib/sanitizer_common/sanitizer_flags.inc index ff6acc6f4..ff03c0625 100644 --- a/lib/sanitizer_common/sanitizer_flags.inc +++ b/lib/sanitizer_common/sanitizer_flags.inc @@ -205,6 +205,9 @@ COMMON_FLAG(bool, intercept_intrin, true, COMMON_FLAG(bool, intercept_stat, true, "If set, uses custom wrappers for *stat functions " "to find more errors.") +COMMON_FLAG(bool, intercept_send, true, + "If set, uses custom wrappers for send* functions " + "to find more errors.") COMMON_FLAG(bool, decorate_proc_maps, false, "If set, decorate sanitizer " "mappings in /proc/self/maps with " "user-readable names") |