mirror of
https://github.com/tmate-io/tmate.git
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75 lines
2.2 KiB
C
75 lines
2.2 KiB
C
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/*
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This file is distributed in public domain. You can do whatever you want
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with its content.
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <libssh/libssh.h>
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#include "tests.h"
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static int auth_kbdint(SSH_SESSION *session){
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int err=ssh_userauth_kbdint(session,NULL,NULL);
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char *name,*instruction,*prompt,*ptr;
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char buffer[128];
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int i,n;
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char echo;
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while (err==SSH_AUTH_INFO){
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name=ssh_userauth_kbdint_getname(session);
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instruction=ssh_userauth_kbdint_getinstruction(session);
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n=ssh_userauth_kbdint_getnprompts(session);
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if(strlen(name)>0)
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printf("%s\n",name);
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if(strlen(instruction)>0)
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printf("%s\n",instruction);
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for(i=0;i<n;++i){
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prompt=ssh_userauth_kbdint_getprompt(session,i,&echo);
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if(echo){
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printf("%s",prompt);
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fgets(buffer,sizeof(buffer),stdin);
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buffer[sizeof(buffer)-1]=0;
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if((ptr=strchr(buffer,'\n')))
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*ptr=0;
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ssh_userauth_kbdint_setanswer(session,i,buffer);
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memset(buffer,0,strlen(buffer));
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} else {
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ptr=getpass(prompt);
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ssh_userauth_kbdint_setanswer(session,i,ptr);
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}
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}
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err=ssh_userauth_kbdint(session,NULL,NULL);
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}
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return err;
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}
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int authenticate (SSH_SESSION *session){
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int auth=ssh_userauth_autopubkey(session, NULL);
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char *password;
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if(auth==SSH_AUTH_ERROR){
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fprintf(stderr,"Authenticating with pubkey: %s\n",ssh_get_error(session));
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return auth;
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}
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if(auth!=SSH_AUTH_SUCCESS){
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auth=auth_kbdint(session);
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if(auth==SSH_AUTH_ERROR){
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fprintf(stderr,"authenticating with keyb-interactive: %s\n",
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ssh_get_error(session));
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return auth;
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}
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}
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if(auth!=SSH_AUTH_SUCCESS){
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password=getpass("Password : ");
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auth = ssh_userauth_password(session,NULL,password);
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memset(password,0,strlen(password));
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if (auth==SSH_AUTH_ERROR){
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fprintf(stderr,"Authentication with password failed: %s\n",ssh_get_error(session));
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return auth;
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}
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}
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return auth;
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}
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