1: /*
2: * Copyright (c) 2010-2013 Todd C. Miller <Todd.Miller@courtesan.com>
3: *
4: * Permission to use, copy, modify, and distribute this software for any
5: * purpose with or without fee is hereby granted, provided that the above
6: * copyright notice and this permission notice appear in all copies.
7: *
8: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15: */
16:
17: #ifndef _SUDO_EXEC_H
18: #define _SUDO_EXEC_H
19:
20: /*
21: * Special values to indicate whether continuing in foreground or background.
22: */
23: #define SIGCONT_FG -2
24: #define SIGCONT_BG -3
25:
26: /*
27: * Positions in saved_signals[]
28: */
29: #define SAVED_SIGALRM 0
30: #define SAVED_SIGCHLD 1
31: #define SAVED_SIGCONT 2
32: #define SAVED_SIGHUP 3
33: #define SAVED_SIGINT 4
34: #define SAVED_SIGPIPE 5
35: #define SAVED_SIGQUIT 6
36: #define SAVED_SIGTERM 7
37: #define SAVED_SIGTSTP 8
38: #define SAVED_SIGTTIN 9
39: #define SAVED_SIGTTOU 10
40: #define SAVED_SIGUSR1 11
41: #define SAVED_SIGUSR2 12
42:
43: /*
44: * Symbols shared between exec.c and exec_pty.c
45: */
46:
47: /* exec.c */
48: int sudo_execve(const char *path, char *const argv[], char *const envp[], int noexec);
49: extern volatile pid_t cmnd_pid;
50:
51: /* exec_pty.c */
52: struct command_details;
53: struct command_status;
54: int fork_pty(struct command_details *details, int sv[], int *maxfd, sigset_t *omask);
55: int perform_io(fd_set *fdsr, fd_set *fdsw, struct command_status *cstat);
56: int suspend_parent(int signo);
57: void exec_cmnd(struct command_details *details, struct command_status *cstat,
58: int *errfd);
59: void fd_set_iobs(fd_set *fdsr, fd_set *fdsw);
60: #ifdef SA_SIGINFO
61: void handler(int s, siginfo_t *info, void *context);
62: #else
63: void handler(int s);
64: #endif
65: void pty_close(struct command_status *cstat);
66: void pty_setup(uid_t uid, const char *tty, const char *utmp_user);
67: void terminate_command(pid_t pid, bool use_pgrp);
68:
69: /* utmp.c */
70: bool utmp_login(const char *from_line, const char *to_line, int ttyfd,
71: const char *user);
72: bool utmp_logout(const char *line, int status);
73:
74: #endif /* _SUDO_EXEC_H */
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