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@@ -60,6 +60,11 @@
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//usage: "\n -f Don't authenticate (user already authenticated)"
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//usage: "\n -h HOST Host user came from (for network logins)"
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//usage: "\n -p Preserve environment"
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+//usage: "\n"
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+//usage: "\n$LOGIN_TIMEOUT Seconds (default 60, 0 - disable)"
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+//usage: IF_LOGIN_SCRIPTS(
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+//usage: "\n$LOGIN_PRE_SUID_SCRIPT Execute before user ID change"
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+//usage: )
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#include "libbb.h"
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#include "common_bufsiz.h"
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@@ -130,7 +135,6 @@ static const struct pam_conv conv = {
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#endif
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enum {
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- TIMEOUT = 60,
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EMPTY_USERNAME_COUNT = 10,
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/* Some users found 32 chars limit to be too low: */
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USERNAME_SIZE = 64,
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@@ -139,6 +143,7 @@ enum {
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struct globals {
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struct termios tty_attrs;
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+ int timeout;
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} FIX_ALIASING;
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#define G (*(struct globals*)bb_common_bufsiz1)
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#define INIT_G() do { setup_common_bufsiz(); } while (0)
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@@ -302,7 +307,7 @@ static void alarm_handler(int sig UNUSED_PARAM)
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* when you are back at shell prompt, echo will be still off.
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*/
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tcsetattr_stdin_TCSANOW(&G.tty_attrs);
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- printf("\r\nLogin timed out after %u seconds\r\n", TIMEOUT);
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+ printf("\r\nLogin timed out after %u seconds\r\n", G.timeout);
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fflush_all();
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/* unix API is brain damaged regarding O_NONBLOCK,
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* we should undo it, or else we can affect other processes */
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@@ -345,6 +350,8 @@ int login_main(int argc UNUSED_PARAM, char **argv)
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INIT_G();
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+ G.timeout = xatoi_positive(getenv("LOGIN_TIMEOUT") ? : "60");
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+
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/* More of suid paranoia if called by non-root: */
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/* Clear dangerous stuff, set PATH */
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run_by_root = !sanitize_env_if_suid();
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@@ -376,7 +383,7 @@ int login_main(int argc UNUSED_PARAM, char **argv)
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/* We install timeout handler only _after_ we saved G.tty_attrs */
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signal(SIGALRM, alarm_handler);
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- alarm(TIMEOUT);
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+ alarm(G.timeout);
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/* Find out and memorize our tty name */
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full_tty = xmalloc_ttyname(STDIN_FILENO);
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Denys Vlasenko