Commit | Line | Data |
---|---|---|
2ce81398 DS |
1 | #if defined(LIBC_SCCS) && !defined(lint) |
2 | static char sccsid[] = "@(#)getpass.c 5.2 (Berkeley) %G%"; | |
3 | #endif LIBC_SCCS and not lint | |
b8f253e8 | 4 | |
6a4d2ab3 BJ |
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); | |
dbb176a2 | 27 | ioctl(fileno(fi), TIOCGETP, &ttyb); |
6a4d2ab3 BJ |
28 | flags = ttyb.sg_flags; |
29 | ttyb.sg_flags &= ~ECHO; | |
dbb176a2 | 30 | ioctl(fileno(fi), TIOCSETP, &ttyb); |
790acfed | 31 | fprintf(stderr, "%s", prompt); fflush(stderr); |
6a4d2ab3 BJ |
32 | for (p=pbuf; (c = getc(fi))!='\n' && c!=EOF;) { |
33 | if (p < &pbuf[8]) | |
34 | *p++ = c; | |
35 | } | |
36 | *p = '\0'; | |
790acfed | 37 | fprintf(stderr, "\n"); fflush(stderr); |
6a4d2ab3 | 38 | ttyb.sg_flags = flags; |
dbb176a2 | 39 | ioctl(fileno(fi), TIOCSETP, &ttyb); |
6a4d2ab3 BJ |
40 | signal(SIGINT, sig); |
41 | if (fi != stdin) | |
42 | fclose(fi); | |
43 | return(pbuf); | |
44 | } |