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/*
* SPDX-License-Identifier: ISC
*
* Copyright (c) 2010-2017, 2020-2021 Todd C. Miller <Todd.Miller@sudo.ws>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef SUDO_EXEC_H
#define SUDO_EXEC_H
/*
* Older systems may not support MSG_WAITALL but it shouldn't really be needed.
*/
#ifndef MSG_WAITALL
# define MSG_WAITALL 0
#endif
/*
* Some older systems support siginfo but predate SI_USER.
*/
#ifdef SI_USER
# define USER_SIGNALED(_info) ((_info) != NULL && (_info)->si_code == SI_USER)
#else
# define USER_SIGNALED(_info) ((_info) != NULL && (_info)->si_code <= 0)
#endif
/*
* Indices into io_fds[] when running a command in a pty.
*/
#define SFD_STDIN 0
#define SFD_STDOUT 1
#define SFD_STDERR 2
#define SFD_LEADER 3
#define SFD_FOLLOWER 4
#define SFD_USERTTY 5
/*
* Special values to indicate whether continuing in foreground or background.
*/
#define SIGCONT_FG -2
#define SIGCONT_BG -3
/*
* Positions in saved_signals[]
*/
#define SAVED_SIGALRM 0
#define SAVED_SIGCHLD 1
#define SAVED_SIGCONT 2
#define SAVED_SIGHUP 3
#define SAVED_SIGINT 4
#define SAVED_SIGPIPE 5
#define SAVED_SIGQUIT 6
#define SAVED_SIGTERM 7
#define SAVED_SIGTSTP 8
#define SAVED_SIGTTIN 9
#define SAVED_SIGTTOU 10
#define SAVED_SIGUSR1 11
#define SAVED_SIGUSR2 12
/*
* Error codes for sesh
*/
#define SESH_SUCCESS 0 /* successful operation */
#define SESH_ERR_FAILURE 1 /* unspecified error */
#define SESH_ERR_KILLED 2 /* killed by a signal */
#define SESH_ERR_INVALID 30 /* invalid -e arg value */
#define SESH_ERR_BAD_PATHS 31 /* odd number of paths */
#define SESH_ERR_NO_FILES 32 /* copy error, no files copied */
#define SESH_ERR_SOME_FILES 33 /* copy error, some files copied */
/*
* Symbols shared between exec.c, exec_nopty.c, exec_pty.c and exec_monitor.c
*/
struct command_details;
struct command_status;
struct stat;
/* exec.c */
void exec_cmnd(struct command_details *details, int errfd);
void terminate_command(pid_t pid, bool use_pgrp);
bool sudo_terminated(struct command_status *cstat);
/* exec_common.c */
int sudo_execve(int fd, const char *path, char *const argv[], char *envp[], bool noexec);
char **disable_execute(char *envp[], const char *dso);
/* exec_nopty.c */
void exec_nopty(struct command_details *details, struct command_status *cstat);
/* exec_pty.c */
bool exec_pty(struct command_details *details, struct command_status *cstat);
void pty_cleanup(void);
int pty_make_controlling(void);
extern int io_fds[6];
/* exec_monitor.c */
int exec_monitor(struct command_details *details, sigset_t *omask, bool foreground, int backchannel);
/* utmp.c */
bool utmp_login(const char *from_line, const char *to_line, int ttyfd,
const char *user);
bool utmp_logout(const char *line, int status);
#endif /* SUDO_EXEC_H */
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