| Kaarle Ritvanen | 517a82c | 2016-01-02 00:20:39 +0200 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
| 2 | /* |
| 3 | * /etc/securetty checking. |
| 4 | * |
| 5 | * Licensed under GPLv2, see file LICENSE in this source tree. |
| 6 | */ |
| 7 | #include "libbb.h" |
| 8 | |
| Denys Vlasenko | 44c0ab4 | 2017-04-13 17:55:05 +0200 | [diff] [blame] | 9 | #if ENABLE_FEATURE_SECURETTY && !ENABLE_PAM |
| Denys Vlasenko | a3de0b3 | 2017-04-13 13:04:05 +0200 | [diff] [blame] | 10 | int FAST_FUNC is_tty_secure(const char *short_tty) |
| Kaarle Ritvanen | 517a82c | 2016-01-02 00:20:39 +0200 | [diff] [blame] | 11 | { |
| 12 | char *buf = (char*)"/etc/securetty"; /* any non-NULL is ok */ |
| 13 | parser_t *parser = config_open2("/etc/securetty", fopen_for_read); |
| 14 | while (config_read(parser, &buf, 1, 1, "# \t", PARSE_NORMAL)) { |
| 15 | if (strcmp(buf, short_tty) == 0) |
| 16 | break; |
| 17 | buf = NULL; |
| 18 | } |
| 19 | config_close(parser); |
| 20 | /* buf != NULL here if config file was not found, empty |
| Denys Vlasenko | a3de0b3 | 2017-04-13 13:04:05 +0200 | [diff] [blame] | 21 | * or line was found which equals short_tty. |
| 22 | * In all these cases, we report "this tty is secure". |
| 23 | */ |
| Kaarle Ritvanen | 517a82c | 2016-01-02 00:20:39 +0200 | [diff] [blame] | 24 | return buf != NULL; |
| 25 | } |
| Denys Vlasenko | 44c0ab4 | 2017-04-13 17:55:05 +0200 | [diff] [blame] | 26 | #endif |