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Diffstat (limited to '')
| -rw-r--r-- | src/sudo_exec.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/sudo_exec.h b/src/sudo_exec.h new file mode 100644 index 0000000..1e086d2 --- /dev/null +++ b/src/sudo_exec.h @@ -0,0 +1,115 @@ +/* + * 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 */ |