/* * Copyright (c) 2003 Anil Madhavapeddy <anil@recoil.org> * * 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. */ /* Privilege separation */ int priv_init(char *, int, int, int, char **); int priv_open_tty(const char *); int priv_open_log(const char *); FILE *priv_open_utmp(void); FILE *priv_open_config(void); void priv_config_parse_done(void); int priv_config_modified(void); int priv_gethostbyname(char *, char *, size_t); int priv_gethostbyaddr(char *, int, int, char *, size_t); /* Terminal message */ char *ttymsg(struct iovec *, int, char *, int); /* File descriptor send/recv */ void send_fd(int, int); int receive_fd(int); /* The list of domain sockets */ #define MAXFUNIX 21 extern int nfunix; extern char *funixn[MAXFUNIX]; extern char *ctlsock_path; #define dprintf if (Debug) printf extern int Debug; extern int Startup; /* fds to poll */ #define PFD_KLOG 0 /* Offset of /dev/klog entry */ #define PFD_INET 1 /* Offset of inet socket entry */ #define PFD_CTLSOCK 2 /* Offset of control socket entry */ #define PFD_CTLCONN 3 /* Offset of control connection entry */ #define PFD_UNIX_0 4 /* Start of Unix socket entries */ #define N_PFD (PFD_UNIX_0 + MAXFUNIX) /* # of pollfd entries */ extern struct pollfd pfd[N_PFD]; struct ringbuf { char *buf; size_t len, start, end; }; struct ringbuf *ringbuf_init(size_t); void ringbuf_clear(struct ringbuf *); size_t ringbuf_used(struct ringbuf *); int ringbuf_append_line(struct ringbuf *, char *); ssize_t ringbuf_to_string(char *, size_t, struct ringbuf *);