185 lines
5.9 KiB
C
185 lines
5.9 KiB
C
/*
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* Copyright (c) 2013-2014 Todd C. Miller <Todd.Miller@courtesan.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _SUDO_UTIL_H
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#define _SUDO_UTIL_H
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#ifdef HAVE_STDBOOL_H
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# include <stdbool.h>
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#else
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# include "compat/stdbool.h"
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#endif /* HAVE_STDBOOL_H */
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/*
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* Macros for operating on struct timeval.
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*/
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#define sudo_timevalclear(tv) ((tv)->tv_sec = (tv)->tv_usec = 0)
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#define sudo_timevalisset(tv) ((tv)->tv_sec || (tv)->tv_usec)
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#define sudo_timevalcmp(tv1, tv2, op) \
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(((tv1)->tv_sec == (tv2)->tv_sec) ? \
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((tv1)->tv_usec op (tv2)->tv_usec) : \
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((tv1)->tv_sec op (tv2)->tv_sec))
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#define sudo_timevaladd(tv1, tv2, tv3) \
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do { \
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(tv3)->tv_sec = (tv1)->tv_sec + (tv2)->tv_sec; \
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(tv3)->tv_usec = (tv1)->tv_usec + (tv2)->tv_usec; \
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if ((tv3)->tv_usec >= 1000000) { \
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(tv3)->tv_sec++; \
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(tv3)->tv_usec -= 1000000; \
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} \
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} while (0)
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#define sudo_timevalsub(tv1, tv2, tv3) \
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do { \
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(tv3)->tv_sec = (tv1)->tv_sec - (tv2)->tv_sec; \
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(tv3)->tv_usec = (tv1)->tv_usec - (tv2)->tv_usec; \
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if ((tv3)->tv_usec < 0) { \
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(tv3)->tv_sec--; \
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(tv3)->tv_usec += 1000000; \
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} \
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} while (0)
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#ifndef TIMEVAL_TO_TIMESPEC
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# define TIMEVAL_TO_TIMESPEC(tv, ts) \
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do { \
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(ts)->tv_sec = (tv)->tv_sec; \
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(ts)->tv_nsec = (tv)->tv_usec * 1000; \
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} while (0)
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#endif
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/*
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* Macros for operating on struct timespec.
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*/
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#define sudo_timespecclear(ts) ((ts)->tv_sec = (ts)->tv_nsec = 0)
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#define sudo_timespecisset(ts) ((ts)->tv_sec || (ts)->tv_nsec)
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#define sudo_timespeccmp(ts1, ts2, op) \
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(((ts1)->tv_sec == (ts2)->tv_sec) ? \
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((ts1)->tv_nsec op (ts2)->tv_nsec) : \
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((ts1)->tv_sec op (ts2)->tv_sec))
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#define sudo_timespecadd(ts1, ts2, ts3) \
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do { \
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(ts3)->tv_sec = (ts1)->tv_sec + (ts2)->tv_sec; \
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(ts3)->tv_nsec = (ts1)->tv_nsec + (ts2)->tv_nsec; \
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while ((ts3)->tv_nsec >= 1000000000) { \
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(ts3)->tv_sec++; \
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(ts3)->tv_nsec -= 1000000000; \
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} \
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} while (0)
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#define sudo_timespecsub(ts1, ts2, ts3) \
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do { \
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(ts3)->tv_sec = (ts1)->tv_sec - (ts2)->tv_sec; \
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(ts3)->tv_nsec = (ts1)->tv_nsec - (ts2)->tv_nsec; \
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while ((ts3)->tv_nsec < 0) { \
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(ts3)->tv_sec--; \
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(ts3)->tv_nsec += 1000000000; \
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} \
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} while (0)
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#ifndef TIMESPEC_TO_TIMEVAL
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# define TIMESPEC_TO_TIMEVAL(tv, ts) \
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do { \
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(tv)->tv_sec = (ts)->tv_sec; \
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(tv)->tv_usec = (ts)->tv_nsec / 1000; \
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} while (0)
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#endif
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/*
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* Macros to extract ctime and mtime as timevals.
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*/
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#ifdef HAVE_ST_MTIM
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# ifdef HAVE_ST__TIM
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# define ctim_get(_x, _y) TIMESPEC_TO_TIMEVAL((_y), &(_x)->st_ctim.st__tim)
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# define mtim_get(_x, _y) TIMESPEC_TO_TIMEVAL((_y), &(_x)->st_mtim.st__tim)
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# else
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# define ctim_get(_x, _y) TIMESPEC_TO_TIMEVAL((_y), &(_x)->st_ctim)
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# define mtim_get(_x, _y) TIMESPEC_TO_TIMEVAL((_y), &(_x)->st_mtim)
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# endif
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#else
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# ifdef HAVE_ST_MTIMESPEC
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# define ctim_get(_x, _y) TIMESPEC_TO_TIMEVAL((_y), &(_x)->st_ctimespec)
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# define mtim_get(_x, _y) TIMESPEC_TO_TIMEVAL((_y), &(_x)->st_mtimespec)
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# else
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# define ctim_get(_x, _y) do { (_y)->tv_sec = (_x)->st_ctime; (_y)->tv_usec = 0; } while (0)
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# define mtim_get(_x, _y) do { (_y)->tv_sec = (_x)->st_mtime; (_y)->tv_usec = 0; } while (0)
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# endif /* HAVE_ST_MTIMESPEC */
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#endif /* HAVE_ST_MTIM */
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/*
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* Macros to quiet gcc's warn_unused_result attribute.
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*/
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#ifdef __GNUC__
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# define ignore_result(x) do { \
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__typeof__(x) y = (x); \
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(void)y; \
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} while(0)
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#else
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# define ignore_result(x) (void)(x)
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#endif
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/* aix.c */
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__dso_public int aix_prep_user(char *user, const char *tty);
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__dso_public int aix_restoreauthdb(void);
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__dso_public int aix_setauthdb(char *user);
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/* atobool.c */
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__dso_public int atobool(const char *str);
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/* atoid.c */
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__dso_public id_t atoid(const char *str, const char *sep, char **endp, const char **errstr);
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/* atomode.c */
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__dso_public int atomode(const char *cp, const char **errstr);
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/* gidlist.c */
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__dso_public int sudo_parse_gids(const char *gidstr, const gid_t *basegid, GETGROUPS_T **gidsp);
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/* key_val.c */
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__dso_public char *sudo_new_key_val(const char *key, const char *value);
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/* locking.c */
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#define SUDO_LOCK 1 /* lock a file */
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#define SUDO_TLOCK 2 /* test & lock a file (non-blocking) */
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#define SUDO_UNLOCK 4 /* unlock a file */
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__dso_public bool sudo_lock_file(int, int);
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/* parseln.c */
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__dso_public ssize_t sudo_parseln(char **buf, size_t *bufsize, unsigned int *lineno, FILE *fp);
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/* progname.c */
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__dso_public void initprogname(const char *);
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/* setgroups.c */
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__dso_public int sudo_setgroups(int ngids, const GETGROUPS_T *gids);
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/* term.c */
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__dso_public bool sudo_term_cbreak(int);
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__dso_public bool sudo_term_copy(int, int);
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__dso_public bool sudo_term_noecho(int);
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__dso_public bool sudo_term_raw(int, int);
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__dso_public bool sudo_term_restore(int, bool);
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/* ttysize.c */
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__dso_public void sudo_get_ttysize(int *rowp, int *colp);
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#endif /* _SUDO_UTIL_H */
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