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// RUN: %clangxx_msan %s -DSEND -DPOISON -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=SEND
// RUN: %clangxx_msan %s -DSENDTO -DPOISON -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=SENDTO
// RUN: %clangxx_msan %s -DSENDMSG -DPOISON -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=SENDMSG
// RUN: %clangxx_msan %s -DSENDMMSG -DPOISON -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=SENDMMSG
// RUN: %clangxx_msan %s -DSEND -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=NEGATIVE
// RUN: %clangxx_msan %s -DSENDTO -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=NEGATIVE
// RUN: %clangxx_msan %s -DSENDMSG -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=NEGATIVE
// RUN: %clangxx_msan %s -DSENDMMSG -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=NEGATIVE
// RUN: %clangxx_msan %s -DSEND -DPOISON -o %t && \
// RUN: MSAN_OPTIONS=intercept_send=0 %run %t 2>&1 | FileCheck %s --check-prefix=NEGATIVE
// RUN: %clangxx_msan %s -DSENDTO -DPOISON -o %t && \
// RUN: MSAN_OPTIONS=intercept_send=0 %run %t 2>&1 | FileCheck %s --check-prefix=NEGATIVE
// RUN: %clangxx_msan %s -DSENDMSG -DPOISON -o %t && \
// RUN: MSAN_OPTIONS=intercept_send=0 %run %t 2>&1 | FileCheck %s --check-prefix=NEGATIVE
// RUN: %clangxx_msan %s -DSENDMMSG -DPOISON -o %t && \
// RUN: MSAN_OPTIONS=intercept_send=0 %run %t 2>&1 | FileCheck %s --check-prefix=NEGATIVE
// UNSUPPORTED: android
#include <assert.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sanitizer/msan_interface.h>
const int kBufSize = 10;
const int kRecvBufSize = 100;
int sockfd[2];
int main() {
int ret;
int sent;
char buf[kBufSize] = {0};
char rbuf[kRecvBufSize];
ret = socketpair(AF_LOCAL, SOCK_DGRAM, 0, sockfd);
assert(!ret);
#if defined(POISON)
__msan_poison(buf + 7, 1);
#endif
#if defined(SENDMSG) || defined(SENDMMSG)
struct iovec iov[2] = {{buf, 5}, {buf + 5, 5}};
struct msghdr msg;
msg.msg_name = nullptr;
msg.msg_namelen = 0;
msg.msg_iov = iov;
msg.msg_iovlen = 2;
msg.msg_control = 0;
msg.msg_controllen = 0;
msg.msg_flags = 0;
#endif
#if defined(SENDMMSG)
struct iovec iov0[1] = {{buf, 7}};
struct msghdr msg0;
msg0.msg_name = nullptr;
msg0.msg_namelen = 0;
msg0.msg_iov = iov0;
msg0.msg_iovlen = 1;
msg0.msg_control = 0;
msg0.msg_controllen = 0;
msg0.msg_flags = 0;
struct mmsghdr mmsg[2];
mmsg[0].msg_hdr = msg0; // good
mmsg[1].msg_hdr = msg; // poisoned
#endif
#if defined(SEND)
sent = send(sockfd[0], buf, kBufSize, 0);
// SEND: Uninitialized bytes in send at offset 7 inside [{{.*}}, 10)
assert(sent > 0);
ret = recv(sockfd[1], rbuf, kRecvBufSize, 0);
assert(ret == sent);
assert(__msan_test_shadow(rbuf, kRecvBufSize) == sent);
#elif defined(SENDTO)
sent = sendto(sockfd[0], buf, kBufSize, 0, nullptr, 0);
// SENDTO: Uninitialized bytes in sendto at offset 7 inside [{{.*}}, 10)
assert(sent > 0);
struct sockaddr_storage ss;
socklen_t sslen = sizeof(ss);
ret = recvfrom(sockfd[1], rbuf, kRecvBufSize, 0, (struct sockaddr *)&ss,
&sslen);
assert(ret == sent);
assert(__msan_test_shadow(rbuf, kRecvBufSize) == sent);
assert(__msan_test_shadow(&ss, sizeof(ss)) == sslen);
#elif defined(SENDMSG)
sent = sendmsg(sockfd[0], &msg, 0);
// SENDMSG: Uninitialized bytes in {{.*}} at offset 2 inside [{{.*}}, 5)
assert(sent > 0);
struct iovec riov[2] = {{rbuf, 3}, {rbuf + 3, kRecvBufSize - 3}};
struct msghdr rmsg;
rmsg.msg_name = nullptr;
rmsg.msg_namelen = 0;
rmsg.msg_iov = riov;
rmsg.msg_iovlen = 2;
rmsg.msg_control = 0;
rmsg.msg_controllen = 0;
rmsg.msg_flags = 0;
ret = recvmsg(sockfd[1], &rmsg, 0);
assert(ret == sent);
assert(__msan_test_shadow(rbuf, kRecvBufSize) == sent);
#elif defined(SENDMMSG)
sent = sendmmsg(sockfd[0], mmsg, 2, 0);
// SENDMMSG: Uninitialized bytes in {{.*}} at offset 2 inside [{{.*}}, 5)
assert(sent == 2);
if (ret >= 2)
assert(mmsg[1].msg_len > 0);
struct iovec riov[2] = {{rbuf + kRecvBufSize / 2, kRecvBufSize / 2}};
struct msghdr rmsg;
rmsg.msg_name = nullptr;
rmsg.msg_namelen = 0;
rmsg.msg_iov = riov;
rmsg.msg_iovlen = 1;
rmsg.msg_control = 0;
rmsg.msg_controllen = 0;
rmsg.msg_flags = 0;
struct iovec riov0[2] = {{rbuf, kRecvBufSize / 2}};
struct msghdr rmsg0;
rmsg0.msg_name = nullptr;
rmsg0.msg_namelen = 0;
rmsg0.msg_iov = riov0;
rmsg0.msg_iovlen = 1;
rmsg0.msg_control = 0;
rmsg0.msg_controllen = 0;
rmsg0.msg_flags = 0;
struct mmsghdr rmmsg[2];
rmmsg[0].msg_hdr = rmsg0;
rmmsg[1].msg_hdr = rmsg;
ret = recvmmsg(sockfd[1], rmmsg, 2, 0, nullptr);
assert(ret == sent);
assert(__msan_test_shadow(rbuf, kRecvBufSize) == 7);
assert(__msan_test_shadow(rbuf + kRecvBufSize / 2, kRecvBufSize / 2) == 10);
#endif
fprintf(stderr, "== done\n");
// NEGATIVE: == done
return 0;
}
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