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Annotation of 43BSD/contrib/xns/examples/authchtest/getXNSpass.c, revision 1.1

1.1     ! root        1: /* $Header$ */
        !             2: /* modified for XNS passwords, which may be of almost arbitrary length */
        !             3: 
        !             4: /* @(#)getpass.c       4.3 (Berkeley) 5/16/84 */
        !             5: #include <stdio.h>
        !             6: #include <signal.h>
        !             7: #include <sgtty.h>
        !             8: #define PASSLEN 80
        !             9: 
        !            10: char *
        !            11: getpass(prompt)
        !            12: char *prompt;
        !            13: {
        !            14:        struct sgttyb ttyb;
        !            15:        int flags;
        !            16:        register char *p;
        !            17:        register c;
        !            18:        FILE *fi;
        !            19:        static char pbuf[PASSLEN+1];
        !            20:        int (*signal())();
        !            21:        int (*sig)();
        !            22: 
        !            23:        if ((fi = fdopen(open("/dev/tty", 2), "r")) == NULL)
        !            24:                fi = stdin;
        !            25:        else
        !            26:                setbuf(fi, (char *)NULL);
        !            27:        sig = signal(SIGINT, SIG_IGN);
        !            28:        ioctl(fileno(fi), TIOCGETP, &ttyb);
        !            29:        flags = ttyb.sg_flags;
        !            30:        ttyb.sg_flags &= ~ECHO;
        !            31:        ioctl(fileno(fi), TIOCSETP, &ttyb);
        !            32:        fprintf(stderr, "%s", prompt); fflush(stderr);
        !            33:        for (p=pbuf; (c = getc(fi))!='\n' && c!=EOF;) {
        !            34:                if (p < &pbuf[PASSLEN])
        !            35:                        *p++ = c;
        !            36:        }
        !            37:        *p = '\0';
        !            38:        fprintf(stderr, "\n"); fflush(stderr);
        !            39:        ttyb.sg_flags = flags;
        !            40:        ioctl(fileno(fi), TIOCSETP, &ttyb);
        !            41:        signal(SIGINT, sig);
        !            42:        if (fi != stdin)
        !            43:                fclose(fi);
        !            44:        return(pbuf);
        !            45: }

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