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