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commit b2f7983c84fd01e0b29895d7df776b4b162fd8a5
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Author: Todd C. Miller <Todd.Miller@sudo.ws>
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Date: Wed Jan 2 07:39:33 2019 -0700
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Fix setting of utmp entry when running command in a pty.
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Regression introduced in sudo 1.8.22.
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diff --git a/src/exec_pty.c b/src/exec_pty.c
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index cbcccca3..68312a98 100644
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--- a/src/exec_pty.c
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+++ b/src/exec_pty.c
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@@ -140,7 +140,7 @@ pty_cleanup(void)
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* and slavename globals.
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*/
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static bool
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-pty_setup(uid_t uid, const char *tty)
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+pty_setup(struct command_details *details, const char *tty)
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{
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debug_decl(pty_setup, SUDO_DEBUG_EXEC);
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@@ -152,12 +152,15 @@ pty_setup(uid_t uid, const char *tty)
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}
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if (!get_pty(&io_fds[SFD_MASTER], &io_fds[SFD_SLAVE],
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- slavename, sizeof(slavename), uid))
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+ slavename, sizeof(slavename), details->euid))
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sudo_fatal(U_("unable to allocate pty"));
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/* Add entry to utmp/utmpx? */
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- if (utmp_user != NULL)
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+ if (ISSET(details->flags, CD_SET_UTMP)) {
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+ utmp_user =
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+ details->utmp_user ? details->utmp_user : user_details.username;
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utmp_login(tty, slavename, io_fds[SFD_SLAVE], utmp_user);
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+ }
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sudo_debug_printf(SUDO_DEBUG_INFO,
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"%s: %s fd %d, pty master fd %d, pty slave fd %d",
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@@ -1302,12 +1305,11 @@ exec_pty(struct command_details *details, struct command_status *cstat)
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/*
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* Allocate a pty.
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*/
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- if (pty_setup(details->euid, user_details.tty)) {
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- if (ISSET(details->flags, CD_SET_UTMP))
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- utmp_user = details->utmp_user ? details->utmp_user : user_details.username;
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- } else if (TAILQ_EMPTY(&io_plugins)) {
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- /* Not logging I/O and didn't allocate a pty. */
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- debug_return_bool(false);
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+ if (!pty_setup(details, user_details.tty)) {
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+ if (TAILQ_EMPTY(&io_plugins)) {
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+ /* Not logging I/O and didn't allocate a pty. */
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+ debug_return_bool(false);
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+ }
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}
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/*
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