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/*
* Copyright (c) 2009-2018 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 SUDOERS_IOLOG_H
#define SUDOERS_IOLOG_H
#ifdef HAVE_ZLIB_H
# include <zlib.h> /* for gzFile */
#endif
/*
* I/O log event types as stored as the first field in the timing file.
* Changing existing values will result in incompatible I/O log files.
*/
#define IO_EVENT_STDIN 0
#define IO_EVENT_STDOUT 1
#define IO_EVENT_STDERR 2
#define IO_EVENT_TTYIN 3
#define IO_EVENT_TTYOUT 4
#define IO_EVENT_WINSIZE 5
#define IO_EVENT_TTYOUT_1_8_7 6
#define IO_EVENT_SUSPEND 7
#define IO_EVENT_COUNT 8
/* Default maximum session ID */
#define SESSID_MAX 2176782336U
union io_fd {
FILE *f;
#ifdef HAVE_ZLIB_H
gzFile g;
#endif
void *v;
};
/*
* Info present in the I/O log file
*/
struct log_info {
char *cwd;
char *user;
char *runas_user;
char *runas_group;
char *tty;
char *cmd;
time_t tstamp;
int rows;
int cols;
};
struct timing_closure {
const char *decimal;
struct timespec *max_delay;
union io_fd fd;
int event;
union {
struct {
int rows;
int cols;
} winsize;
size_t nbytes; // XXX
int signo;
} u;
};
/* iolog_util.c */
bool parse_timing(const char *buf, struct timespec *delay, struct timing_closure *timing);
char *parse_delay(const char *cp, struct timespec *delay, const char *decimal_point);
struct log_info *parse_logfile(const char *logfile);
void free_log_info(struct log_info *li);
void adjust_delay(struct timespec *delay, struct timespec *max_delay, double scale_factor);
#endif /* SUDOERS_IOLOG_H */
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