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Annotation of cci/usr/src/ucb/ftp/getpass.c, revision 1.1.1.1

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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