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// RUN: %clangxx_msan -O0 %s -o %t && %run %t %p 2>&1
// RUN: %clangxx_msan -O0 -D_FILE_OFFSET_BITS=64 %s -o %t && %run %t %p 2>&1
// RUN: %clangxx_msan -O3 %s -o %t && %run %t %p 2>&1
#include <assert.h>
#include <errno.h>
#include <ifaddrs.h>
#include <stdio.h>
#include <string.h>
#include <vector>
#if defined(__FreeBSD__) || defined(__NetBSD__)
#include <sys/socket.h> // To define 'struct sockaddr'.
#endif
#include <sanitizer/msan_interface.h>
#define CHECK_AND_PUSH(addr, size) \
if (addr) { \
assert(-1 == __msan_test_shadow(addr, sizeof(size))); \
ranges.push_back(std::make_pair((void *)addr, (size_t)size)); \
}
int main(int argc, char *argv[]) {
struct ifaddrs *ifas;
assert(0 == __msan_test_shadow(&ifas, sizeof(ifaddrs *)));
int res = getifaddrs(&ifas);
if (res == -1) {
assert(errno == ENOSYS);
printf("getifaddrs() is not implemented\n");
return 0;
}
assert(res == 0);
assert(-1 == __msan_test_shadow(&ifas, sizeof(ifaddrs *)));
std::vector<std::pair<void *, size_t> > ranges;
ifaddrs *p = ifas;
while (p) {
CHECK_AND_PUSH(p, sizeof(ifaddrs));
CHECK_AND_PUSH(p->ifa_name, strlen(p->ifa_name) + 1);
CHECK_AND_PUSH(p->ifa_addr, sizeof(*p->ifa_addr));
CHECK_AND_PUSH(p->ifa_netmask, sizeof(*p->ifa_netmask));
CHECK_AND_PUSH(p->ifa_broadaddr, sizeof(*p->ifa_broadaddr));
CHECK_AND_PUSH(p->ifa_dstaddr, sizeof(*p->ifa_dstaddr));
p = p->ifa_next;
}
freeifaddrs(ifas);
for (int i = 0; i < ranges.size(); i++)
assert(0 == __msan_test_shadow(ranges[i].first, ranges[i].second));
return 0;
}
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