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    1: /*
    2:  * Copyright (c) 2010-2011 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:  * Symbols shared between exec.c and exec_pty.c
   28:  */
   29: 
   30: /* exec.c */
   31: int sudo_execve(const char *path, char *const argv[], char *const envp[], int noexec);
   32: int pipe_nonblock(int fds[2]);
   33: extern volatile pid_t cmnd_pid;
   34: 
   35: /* exec_pty.c */
   36: struct command_details;
   37: struct command_status;
   38: int fork_pty(struct command_details *details, int sv[], int *maxfd, sigset_t *omask);
   39: int perform_io(fd_set *fdsr, fd_set *fdsw, struct command_status *cstat);
   40: int suspend_parent(int signo);
   41: void fd_set_iobs(fd_set *fdsr, fd_set *fdsw);
   42: #ifdef SA_SIGINFO
   43: void handler(int s, siginfo_t *info, void *context);
   44: #else
   45: void handler(int s);
   46: #endif
   47: void pty_close(struct command_status *cstat);
   48: void pty_setup(uid_t uid, const char *tty, const char *utmp_user);
   49: void terminate_command(pid_t pid, bool use_pgrp);
   50: extern int signal_pipe[2];
   51: 
   52: /* utmp.c */
   53: bool utmp_login(const char *from_line, const char *to_line, int ttyfd,
   54:     const char *user);
   55: bool utmp_logout(const char *line, int status);
   56: 
   57: #endif /* _SUDO_EXEC_H */