diff options
| -rw-r--r-- | ssh-agent-filter.C | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/ssh-agent-filter.C b/ssh-agent-filter.C index 8d87d0b..75759d7 100644 --- a/ssh-agent-filter.C +++ b/ssh-agent-filter.C @@ -37,9 +37,11 @@ namespace fs = boost::filesystem; #include <csignal> #include <cstdlib> #include <fcntl.h> +#include <unistd.h> #include <sys/types.h> #include <sys/socket.h> #include <sys/un.h> +#include <sys/wait.h> #include <sysexits.h> #include <nettle/md5.h> #include <nettle/base64.h> @@ -234,6 +236,27 @@ void setup_filters () { } } +bool confirm (std::string const & question) { + char const * sap; + if (!(sap = getenv("SSH_ASKPASS"))) + sap = "ssh-askpass"; + pid_t pid = fork(); + if (pid < 0) + throw std::runtime_error("fork()"); + if (pid == 0) { + // child + char const * args[3] = { sap, question.c_str(), nullptr }; + // see execvp(3p) for cast rationale + execvp(sap, const_cast<char * const *>(args)); + perror("exec"); + exit(EX_UNAVAILABLE); + } else { + // parent + int status; + return waitpid(pid, &status, 0) > 0 && WIFEXITED(status) && WEXITSTATUS(status) == 0; + } +} + rfc4251string handle_request (rfc4251string const & r) { std::istringstream request{r}; std::ostringstream answer; |