lib/libskey/skey_getpass.c

   1 #include <unistd.h>
   2 #include <stdio.h>
   3 #include <skey.h>
   4
   5 /* skey_getpass - read regular or s/key password */
   6
   7 char *skey_getpass(prompt, pwd, pwok)
   8 const char *prompt;
   9 struct passwd *pwd;
  10 int     pwok;
  11 {
  12     static char buf[128];
  13     struct skey skey;
  14     char   *pass;
  15     int     sflag;
  16
  17     /* Attempt an s/key challenge. */
  18     sflag = (pwd == NULL || skeyinfo(&skey, pwd->pw_name, buf));
  19     if (!sflag) {
  20         printf("%s\n", buf);
  21         if (!pwok)
  22             printf("(s/key required)\n");
  23     }
  24
  25     pass = getpass(prompt);
  26
  27     /* Give S/Key users a chance to do it with echo on. */
  28     if (!sflag && !feof(stdin) && *pass == '\0') {
  29         fputs(" (turning echo on)\n", stdout);
  30         fputs(prompt, stdout);
  31         fflush(stdout);
  32         fgets(buf, sizeof(buf), stdin);
  33         rip(buf);
  34         return (buf);
  35     } else
  36         return (pass);
  37 }