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SERVER-46007 ignore SIGINT when input password in stdin #1348

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SERVER-46007 ignore SIGINT when input password in stdin #1348

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54 changes: 27 additions & 27 deletions src/mongo/util/password.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,28 @@

namespace mongo {

#ifndef _WIN32
char getachar(void)
{
struct termios tm, tm_temp;
char chr;
if (isatty(STDIN_FILENO)) {
if(tcgetattr(STDIN_FILENO, &tm) < 0)
return -1;
tm_temp = tm;
cfmakeraw(&tm);
if(tcsetattr(STDIN_FILENO, TCSANOW, &tm) < 0)
return -1;
}
chr = getchar();
if (isatty(STDIN_FILENO)) {
if(tcsetattr(STDIN_FILENO, TCSANOW, &tm_temp) < 0)
return -1;
}
return chr;
}
#endif

std::string askPassword() {
std::string password;
std::cerr << "Enter password: ";
Expand All @@ -53,33 +75,11 @@ std::string askPassword() {
}

#ifndef _WIN32
const int stdinfd = 0;
termios termio;
tcflag_t old = 0;
if (isatty(stdinfd)) {
int i = tcgetattr(stdinfd, &termio);
if (i == -1) {
std::cerr << "Cannot get terminal attributes " << errnoWithDescription() << std::endl;
return std::string();
}
old = termio.c_lflag;
termio.c_lflag &= ~ECHO;
i = tcsetattr(stdinfd, TCSANOW, &termio);
if (i == -1) {
std::cerr << "Cannot set terminal attributes " << errnoWithDescription() << std::endl;
return std::string();
}
}

getline(std::cin, password);

if (isatty(stdinfd)) {
termio.c_lflag = old;
int i = tcsetattr(stdinfd, TCSANOW, &termio);
if (i == -1) {
std::cerr << "Cannot set terminal attributes " << errnoWithDescription() << std::endl;
return std::string();
}
char chr;
while ((chr = getachar()) > 0) {
if (chr == '\r' || chr == '\n')
break;
password.append(&chr);
}
#else
HANDLE stdinh = GetStdHandle(STD_INPUT_HANDLE);
Expand Down