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Annotation of cci/usr/src/ucb/ftp/getpass.c, revision 1.1

1.1     ! root        1: #ifndef lint
        !             2: static char sccsid[] = "@(#)getpass.c  4.1 (Berkeley) 5/26/83";
        !             3: #endif
        !             4: 
        !             5: #include <stdio.h>
        !             6: #include <signal.h>
        !             7: #include <sgtty.h>
        !             8: 
        !             9: /*
        !            10:  * Changes
        !            11:  *     .       from Usenet: increase length of password buffer 
        !            12:  */
        !            13: #define        PASSLEN 100                     /* max password length */
        !            14: 
        !            15: char *
        !            16: getpass(prompt)
        !            17: char *prompt;
        !            18: {
        !            19:        struct sgttyb ttyb;
        !            20:        int flags;
        !            21:        register char *p;
        !            22:        register c;
        !            23:        FILE *fi;
        !            24:        static char pbuf[PASSLEN+1];
        !            25:        int (*signal())();
        !            26:        int (*sig)();
        !            27: 
        !            28:        if ((fi = fdopen(open("/dev/tty", 2), "r")) == NULL)
        !            29:                fi = stdin;
        !            30:        else
        !            31:                setbuf(fi, (char *)NULL);
        !            32:        sig = signal(SIGINT, SIG_IGN);
        !            33:        gtty(fileno(fi), &ttyb);
        !            34:        flags = ttyb.sg_flags;
        !            35:        ttyb.sg_flags &= ~ECHO;
        !            36:        stty(fileno(fi), &ttyb);
        !            37:        fprintf(stderr, "%s", prompt); fflush(stderr);
        !            38:        for (p=pbuf; (c = getc(fi))!='\n' && c!=EOF;) {
        !            39:                if (p < &pbuf[PASSLEN])
        !            40:                        *p++ = c;
        !            41:        }
        !            42:        *p = '\0';
        !            43:        fprintf(stderr, "\n"); fflush(stderr);
        !            44:        ttyb.sg_flags = flags;
        !            45:        stty(fileno(fi), &ttyb);
        !            46:        signal(SIGINT, sig);
        !            47:        if (fi != stdin)
        !            48:                fclose(fi);
        !            49:        return(pbuf);
        !            50: }

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