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| author | Stanislav Brabec <sbrabec@suse.cz> | 2024-07-22 23:18:16 +0200 |
|---|---|---|
| committer | Dmitry V. Levin <ldv@strace.io> | 2024-08-07 08:00:00 +0000 |
| commit | 8ae228fa76ff9ef1d8d6b2199582d9206f1830c6 (patch) | |
| tree | 5592c58d516283e094720334c68de98988067273 /libpam_misc | |
| parent | 02f451baac4dfea03ac93b442f9f8ecbaf83adbf (diff) | |
| download | pam-8ae228fa76ff9ef1d8d6b2199582d9206f1830c6.tar.gz pam-8ae228fa76ff9ef1d8d6b2199582d9206f1830c6.tar.bz2 pam-8ae228fa76ff9ef1d8d6b2199582d9206f1830c6.zip | |
libpam_misc: Use ECHOCTL in the terminal input
Use the canonical terminal mode (line mode) and set ECHOCTL to prevent
cursor escape from the login prompt using arrows or escape sequences.
ICANON is the default in most cases anyway. ECHOCTL is default on tty, but
for example not on pty, allowing cursor to escape.
Stanislav Brabec <sbrabec@suse.com>
Diffstat (limited to 'libpam_misc')
| -rw-r--r-- | libpam_misc/misc_conv.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/libpam_misc/misc_conv.c b/libpam_misc/misc_conv.c index 7410e929..6b839b48 100644 --- a/libpam_misc/misc_conv.c +++ b/libpam_misc/misc_conv.c @@ -145,9 +145,10 @@ static int read_string(int echo, const char *prompt, char **retstr) return -1; } memcpy(&term_tmp, &term_before, sizeof(term_tmp)); - if (!echo) { + if (echo) + term_tmp.c_lflag |= ICANON | ECHOCTL; + else term_tmp.c_lflag &= ~(ECHO); - } have_term = 1; /* |