Mercurial > dovecot > original-hg > dovecot-1.2
annotate src/master/askpass.c @ 9186:f70192e7ff3c HEAD
Added tag 1.2.0 for changeset 9ca9361d74ce
| author | Timo Sirainen <tss@iki.fi> |
|---|---|
| date | Wed, 01 Jul 2009 21:52:54 +0200 |
| parents | b9faf4db2a9f |
| children | 00cd9aacd03c |
| rev | line source |
|---|---|
|
8590
b9faf4db2a9f
Updated copyright notices to include year 2009.
Timo Sirainen <tss@iki.fi>
parents:
7086
diff
changeset
|
1 /* Copyright (c) 2006-2009 Dovecot authors, see the included COPYING file */ |
| 3890 | 2 |
| 3 #include "lib.h" | |
| 4 #include "askpass.h" | |
| 5 | |
| 6 #include <stdio.h> | |
| 7 #include <termios.h> | |
| 8 #include <fcntl.h> | |
| 9 #include <unistd.h> | |
| 10 | |
| 11 void askpass(const char *prompt, char *buf, size_t buf_size) | |
| 12 { | |
| 13 struct termios old_tio, tio; | |
| 14 bool restore_tio = FALSE; | |
| 15 ssize_t ret; | |
| 16 size_t pos; | |
| 17 char ch; | |
| 18 int fd; | |
| 19 | |
| 20 if (!isatty(STDIN_FILENO)) | |
| 21 i_fatal("stdin isn't a TTY"); | |
| 22 | |
| 23 fputs(prompt, stderr); | |
| 24 fflush(stderr); | |
| 25 | |
| 26 fd = open("/dev/tty", O_RDONLY); | |
| 27 if (fd < 0) | |
| 28 i_fatal("open(/dev/tty) failed: %m"); | |
| 29 | |
| 30 /* turn off echo */ | |
| 31 if (tcgetattr(fd, &old_tio) == 0) { | |
| 32 restore_tio = TRUE; | |
| 33 tio = old_tio; | |
| 34 tio.c_lflag &= ~(ECHO | ECHONL); | |
| 35 (void)tcsetattr(fd, TCSAFLUSH, &tio); | |
| 36 } | |
| 37 | |
| 38 /* read the password */ | |
| 39 pos = 0; | |
| 40 while ((ret = read(fd, &ch, 1)) > 0) { | |
| 41 if (pos >= buf_size-1) | |
| 42 break; | |
| 43 if (ch == '\n' || ch == '\r') | |
| 44 break; | |
| 45 buf[pos++] = ch; | |
| 46 } | |
| 47 buf[pos] = '\0'; | |
| 48 | |
| 49 if (restore_tio) | |
| 50 (void)tcsetattr(fd, TCSAFLUSH, &old_tio); | |
| 51 | |
| 52 fputs("\n", stderr); fflush(stderr); | |
| 53 (void)close(fd); | |
| 54 } |