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/*
* Copyright (c) 2013-2014 Todd C. Miller <Todd.Miller@courtesan.com>
*
* 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_UTIL_H
#define _SUDO_UTIL_H
#ifdef HAVE_STDBOOL_H
# include <stdbool.h>
#else
# include "compat/stdbool.h"
#endif /* HAVE_STDBOOL_H */
/*
* Macros for operating on struct timeval.
*/
#define sudo_timevalclear(tv) ((tv)->tv_sec = (tv)->tv_usec = 0)
#define sudo_timevalisset(tv) ((tv)->tv_sec || (tv)->tv_usec)
#define sudo_timevalcmp(tv1, tv2, op) \
(((tv1)->tv_sec == (tv2)->tv_sec) ? \
((tv1)->tv_usec op (tv2)->tv_usec) : \
((tv1)->tv_sec op (tv2)->tv_sec))
#define sudo_timevaladd(tv1, tv2, tv3) \
do { \
(tv3)->tv_sec = (tv1)->tv_sec + (tv2)->tv_sec; \
(tv3)->tv_usec = (tv1)->tv_usec + (tv2)->tv_usec; \
if ((tv3)->tv_usec >= 1000000) { \
(tv3)->tv_sec++; \
(tv3)->tv_usec -= 1000000; \
} \
} while (0)
#define sudo_timevalsub(tv1, tv2, tv3) \
do { \
(tv3)->tv_sec = (tv1)->tv_sec - (tv2)->tv_sec; \
(tv3)->tv_usec = (tv1)->tv_usec - (tv2)->tv_usec; \
if ((tv3)->tv_usec < 0) { \
(tv3)->tv_sec--; \
(tv3)->tv_usec += 1000000; \
} \
} while (0)
#ifndef TIMEVAL_TO_TIMESPEC
# define TIMEVAL_TO_TIMESPEC(tv, ts) \
do { \
(ts)->tv_sec = (tv)->tv_sec; \
(ts)->tv_nsec = (tv)->tv_usec * 1000; \
} while (0)
#endif
/*
* Macros for operating on struct timespec.
*/
#define sudo_timespecclear(ts) ((ts)->tv_sec = (ts)->tv_nsec = 0)
#define sudo_timespecisset(ts) ((ts)->tv_sec || (ts)->tv_nsec)
#define sudo_timespeccmp(ts1, ts2, op) \
(((ts1)->tv_sec == (ts2)->tv_sec) ? \
((ts1)->tv_nsec op (ts2)->tv_nsec) : \
((ts1)->tv_sec op (ts2)->tv_sec))
#define sudo_timespecadd(ts1, ts2, ts3) \
do { \
(ts3)->tv_sec = (ts1)->tv_sec + (ts2)->tv_sec; \
(ts3)->tv_nsec = (ts1)->tv_nsec + (ts2)->tv_nsec; \
while ((ts3)->tv_nsec >= 1000000000) { \
(ts3)->tv_sec++; \
(ts3)->tv_nsec -= 1000000000; \
} \
} while (0)
#define sudo_timespecsub(ts1, ts2, ts3) \
do { \
(ts3)->tv_sec = (ts1)->tv_sec - (ts2)->tv_sec; \
(ts3)->tv_nsec = (ts1)->tv_nsec - (ts2)->tv_nsec; \
while ((ts3)->tv_nsec < 0) { \
(ts3)->tv_sec--; \
(ts3)->tv_nsec += 1000000000; \
} \
} while (0)
#ifndef TIMESPEC_TO_TIMEVAL
# define TIMESPEC_TO_TIMEVAL(tv, ts) \
do { \
(tv)->tv_sec = (ts)->tv_sec; \
(tv)->tv_usec = (ts)->tv_nsec / 1000; \
} while (0)
#endif
/*
* Macros to extract ctime and mtime as timevals.
*/
#ifdef HAVE_ST_MTIM
# ifdef HAVE_ST__TIM
# define ctim_get(_x, _y) TIMESPEC_TO_TIMEVAL((_y), &(_x)->st_ctim.st__tim)
# define mtim_get(_x, _y) TIMESPEC_TO_TIMEVAL((_y), &(_x)->st_mtim.st__tim)
# else
# define ctim_get(_x, _y) TIMESPEC_TO_TIMEVAL((_y), &(_x)->st_ctim)
# define mtim_get(_x, _y) TIMESPEC_TO_TIMEVAL((_y), &(_x)->st_mtim)
# endif
#else
# ifdef HAVE_ST_MTIMESPEC
# define ctim_get(_x, _y) TIMESPEC_TO_TIMEVAL((_y), &(_x)->st_ctimespec)
# define mtim_get(_x, _y) TIMESPEC_TO_TIMEVAL((_y), &(_x)->st_mtimespec)
# else
# define ctim_get(_x, _y) do { (_y)->tv_sec = (_x)->st_ctime; (_y)->tv_usec = 0; } while (0)
# define mtim_get(_x, _y) do { (_y)->tv_sec = (_x)->st_mtime; (_y)->tv_usec = 0; } while (0)
# endif /* HAVE_ST_MTIMESPEC */
#endif /* HAVE_ST_MTIM */
/*
* Macros to quiet gcc's warn_unused_result attribute.
*/
#ifdef __GNUC__
# define ignore_result(x) do { \
__typeof__(x) y = (x); \
(void)y; \
} while(0)
#else
# define ignore_result(x) (void)(x)
#endif
/* aix.c */
void aix_prep_user(char *user, const char *tty);
void aix_restoreauthdb(void);
void aix_setauthdb(char *user);
/* atobool.c */
int atobool(const char *str);
/* atoid.c */
id_t atoid(const char *str, const char *sep, char **endp, const char **errstr);
/* atomode.c */
int atomode(const char *cp, const char **errstr);
/* fmt_string.h */
char *fmt_string(const char *var, const char *value);
/* gidlist.c */
int parse_gid_list(const char *gidstr, const gid_t *basegid, GETGROUPS_T **gidsp);
/* progname.c */
void initprogname(const char *);
/* setgroups.c */
int sudo_setgroups(int ngids, const GETGROUPS_T *gids);
/* term.c */
bool term_cbreak(int);
bool term_copy(int, int);
bool term_noecho(int);
bool term_raw(int, int);
bool term_restore(int, bool);
/* ttysize.c */
void get_ttysize(int *rowp, int *colp);
#endif /* _SUDO_UTIL_H */
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