13 Commits

Author	SHA1	Message	Date
Todd C. Miller	dc08cf3c99	If we receive a signal from the command we executed, do not forward ... it back to the command. This fixes a problem with BSD-derived versions of the reboot command which send SIGTERM to all other processes, including the sudo process. Sudo would then deliver SIGTERM to reboot which would die before calling the reboot() system call, effectively leaving the system in single user mode.	2012-08-06 14:38:35 -04:00
Todd C. Miller	d11e7febbc	Refactor disable_execute() and my_execve() into exec_common.c for ... use by sesh.c. This fixes NOEXEC when SELinux is used. Instead of disabling exec in exec_setup(), disable it immediately before executing the command. Adapted from a diff by Arno Schuring.	2012-01-25 14:58:02 -05:00
Todd C. Miller	21a2f95821	Use stdbool.h instead of rolling our own TRUE/FALSE macros.	2011-12-02 11:27:33 -05:00
Todd C. Miller	2041d39db7	Add support for ut_exit	2011-03-15 16:18:33 -04:00
Todd C. Miller	3506f01077	Add support for controlling whether utmp is updated and which user is ... listed in the entry.	2011-03-15 15:53:49 -04:00
Todd C. Miller	8653ccc809	Redo utmp handling. If no getutent()/getutxent() is available, ... assume a ttyslot-based utmp. If getttyent() is available, use that directly instead of ttyslot() so we don't have to do the stdin dup2 dance.	2011-03-14 10:20:47 -04:00
Todd C. Miller	1e9def1efa	Move utmp handling into utmp.c	2011-03-11 15:54:12 -05:00
Todd C. Miller	53da5e8cdf	Update copyright years.	2011-03-11 15:34:35 -05:00
Todd C. Miller	c7a7d31905	Add support for disabling exec via solaris privileges. ... Includes preparation for moving noexec support out of sudoers and into front end as documented.	2011-03-10 14:24:10 -05:00
Todd C. Miller	1496bfed6c	Add support for adding a utmp entry when allocating a new pty. ... Requires the BSD login(3) or SYSV/POSIX getutent()/getutxent(). Currently only creates a new entry if the existing tty has a utmp entry.	2011-03-08 15:37:40 -05:00
Todd C. Miller	2959d5dadd	Use special values SIGCONT_FG and SIGCONT_BG instead of SIGUSR1 and ... SIGUSR2 to indicate whether the child should be continued in the foreground or background.	2011-02-03 09:59:41 -05:00
Todd C. Miller	59399d55c3	Instead of using a array to store received signals, open a pipe and ... have the signal handler write the signal number to one end and select() on the other end. This makes it possible to handle signals similar to I/O without race conditions.	2010-09-10 11:20:32 -04:00
Todd C. Miller	d018936b4e	Move functions and symbols shared between exec.c and exec_pty.c ... into sudo_exec.h.	2010-06-16 16:46:56 -04:00