1 #include <errno.h> 2 #include <fstream> 3 #include <iostream> 4 #include <regex> 5 #include <string> 6 #include <string.h> 7 8 int main(int argc, char * argv[]) { 9 if (argc != 2) { 10 std::cerr << "usage: " << argv[0] << ": libname\n"; 11 return -1; 12 } 13 std::regex reg(std::string("^([a-f0-9]+)\\-[0-9a-f]+\\s+.+\\s+(\\d+)\\s+.+\\s+\\d+\\s+") + std::string(argv[1]) + std::string("\\s*$")); 14 15 /* open /proc/self/maps */ 16 std::string ln; 17 std::ifstream m_file("/proc/self/maps"); 18 if (!m_file) { 19 std::cerr << "Unable to open /proc/self/maps " << strerror(errno) << "\n"; 20 return -1; 21 } 22 while (getline(m_file, ln)) { 23 std::smatch sm; 24 if (std::regex_match (ln,sm, reg)) { 25 if (std::stoi(sm[2]) == 0) { 26 std::cout << sm[1]; 27 return 0; 28 } 29 } 30 } 31 return -1; 32 } 33
