4.3BSD - /usr/src/lib/libc/gen/getpass.c

   1: #if defined(LIBC_SCCS) && !defined(lint)
   2: static char sccsid[] = "@(#)getpass.c	5.2 (Berkeley) 3/9/86";
   3: #endif LIBC_SCCS and not lint
   4: 
   5: #include <stdio.h>
   6: #include <signal.h>
   7: #include <sgtty.h>
   8: 
   9: char *
  10: getpass(prompt)
  11: char *prompt;
  12: {
  13:     struct sgttyb ttyb;
  14:     int flags;
  15:     register char *p;
  16:     register c;
  17:     FILE *fi;
  18:     static char pbuf[9];
  19:     int (*signal())();
  20:     int (*sig)();
  21: 
  22:     if ((fi = fdopen(open("/dev/tty", 2), "r")) == NULL)
  23:         fi = stdin;
  24:     else
  25:         setbuf(fi, (char *)NULL);
  26:     sig = signal(SIGINT, SIG_IGN);
  27:     ioctl(fileno(fi), TIOCGETP, &ttyb);
  28:     flags = ttyb.sg_flags;
  29:     ttyb.sg_flags &= ~ECHO;
  30:     ioctl(fileno(fi), TIOCSETP, &ttyb);
  31:     fprintf(stderr, "%s", prompt); fflush(stderr);
  32:     for (p=pbuf; (c = getc(fi))!='\n' && c!=EOF;) {
  33:         if (p < &pbuf[8])
  34:             *p++ = c;
  35:     }
  36:     *p = '\0';
  37:     fprintf(stderr, "\n"); fflush(stderr);
  38:     ttyb.sg_flags = flags;
  39:     ioctl(fileno(fi), TIOCSETP, &ttyb);
  40:     signal(SIGINT, sig);
  41:     if (fi != stdin)
  42:         fclose(fi);
  43:     return(pbuf);
  44: }

Defined functions

Defined variables