6cbba7d665
AIX which can have different name <-> ID mappings depending on whether the database is local, LDAP, etc.
251 lines
9.1 KiB
C
251 lines
9.1 KiB
C
/*
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* Copyright (c) 2013-2015 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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* The timespec version of st_mtime may vary on different platforms.
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*/
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#if defined(HAVE_ST_MTIM)
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# if defined(HAVE_ST__TIM)
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# define SUDO_ST_MTIM st_mtim.st__tim
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# else
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# define SUDO_ST_MTIM st_mtim
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# endif
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#elif defined(HAVE_ST_MTIMESPEC)
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# define SUDO_ST_MTIM st_mtimespec
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#endif
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/*
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* Macro to extract mtime as timespec.
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* If there is no way to set the timestamp using nanosecond precision,
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* we only fetch microsecond precision. Otherwise there is a mismatch
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* between the timestamp we read and the one we wrote.
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*/
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#if defined(SUDO_ST_MTIM)
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# if defined(HAVE_FUTIMENS) && defined(HAVE_UTIMENSAT)
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# define mtim_get(_x, _y) do { (_y).tv_sec = (_x)->SUDO_ST_MTIM.tv_sec; (_y).tv_nsec = (_x)->SUDO_ST_MTIM.tv_nsec; } while (0)
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# else
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# define mtim_get(_x, _y) do { (_y).tv_sec = (_x)->SUDO_ST_MTIM.tv_sec; (_y).tv_nsec = ((_x)->SUDO_ST_MTIM.tv_nsec / 1000) * 1000; } while (0)
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# endif
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#else
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# define mtim_get(_x, _y) do { (_y).tv_sec = (_x)->st_mtime; (_y).tv_nsec = 0; } while (0)
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#endif /* HAVE_ST_MTIM */
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/* Bit map macros. */
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#define sudo_setbit(_a, _i) ((_a)[(_i) / NBBY] |= 1 << ((_i) % NBBY))
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#define sudo_clrbit(_a, _i) ((_a)[(_i) / NBBY] &= ~(1<<((_i) % NBBY)))
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#define sudo_isset(_a, _i) ((_a)[(_i) / NBBY] & (1<<((_i) % NBBY)))
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#define sudo_isclr(_a, _i) (((_a)[(_i) / NBBY] & (1<<((_i) % NBBY))) == 0)
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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_getauthregistry_v1(char *user, char *saved_registry);
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#define aix_getauthregistry(_a, _b) aix_getauthregistry_v1((_a), (_b))
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__dso_public int aix_prep_user_v1(char *user, const char *tty);
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#define aix_prep_user(_a, _b) aix_prep_user_v1((_a), (_b))
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__dso_public int aix_restoreauthdb_v1(void);
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#define aix_restoreauthdb() aix_restoreauthdb_v1()
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__dso_public int aix_setauthdb_v1(char *user);
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__dso_public int aix_setauthdb_v2(char *user, char *registry);
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#define aix_setauthdb(_a, _b) aix_setauthdb_v2((_a), (_b))
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/* gethostname.c */
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__dso_public char *sudo_gethostname_v1(void);
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#define sudo_gethostname() sudo_gethostname_v1()
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/* gettime.c */
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__dso_public int sudo_gettime_mono_v1(struct timespec *ts);
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#define sudo_gettime_mono(_a) sudo_gettime_mono_v1((_a))
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__dso_public int sudo_gettime_real_v1(struct timespec *ts);
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#define sudo_gettime_real(_a) sudo_gettime_real_v1((_a))
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/* gidlist.c */
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__dso_public int sudo_parse_gids_v1(const char *gidstr, const gid_t *basegid, GETGROUPS_T **gidsp);
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#define sudo_parse_gids(_a, _b, _c) sudo_parse_gids_v1((_a), (_b), (_c))
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/* key_val.c */
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__dso_public char *sudo_new_key_val_v1(const char *key, const char *value);
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#define sudo_new_key_val(_a, _b) sudo_new_key_val_v1((_a), (_b))
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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_v1(int fd, int action);
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#define sudo_lock_file(_a, _b) sudo_lock_file_v1((_a), (_b))
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__dso_public bool sudo_lock_region_v1(int fd, int action, off_t len);
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#define sudo_lock_region(_a, _b, _c) sudo_lock_region_v1((_a), (_b), (_c))
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/* parseln.c */
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__dso_public ssize_t sudo_parseln_v1(char **buf, size_t *bufsize, unsigned int *lineno, FILE *fp);
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#define sudo_parseln(_a, _b, _c, _d) sudo_parseln_v1((_a), (_b), (_c), (_d))
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/* progname.c */
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__dso_public void initprogname(const char *);
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/* secure_path.c */
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#define SUDO_PATH_SECURE 0
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#define SUDO_PATH_MISSING -1
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#define SUDO_PATH_BAD_TYPE -2
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#define SUDO_PATH_WRONG_OWNER -3
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#define SUDO_PATH_WORLD_WRITABLE -4
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#define SUDO_PATH_GROUP_WRITABLE -5
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struct stat;
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__dso_public int sudo_secure_dir_v1(const char *path, uid_t uid, gid_t gid, struct stat *sbp);
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#define sudo_secure_dir(_a, _b, _c, _d) sudo_secure_dir_v1((_a), (_b), (_c), (_d))
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__dso_public int sudo_secure_file_v1(const char *path, uid_t uid, gid_t gid, struct stat *sbp);
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#define sudo_secure_file(_a, _b, _c, _d) sudo_secure_file_v1((_a), (_b), (_c), (_d))
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/* setgroups.c */
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__dso_public int sudo_setgroups_v1(int ngids, const GETGROUPS_T *gids);
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#define sudo_setgroups(_a, _b) sudo_setgroups_v1((_a), (_b))
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/* strsplit.c */
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__dso_public const char *sudo_strsplit_v1(const char *str, const char *endstr, const char *sep, const char **last);
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#define sudo_strsplit(_a, _b, _c, _d) sudo_strsplit_v1(_a, _b, _c, _d)
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/* strtobool.c */
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__dso_public int sudo_strtobool_v1(const char *str);
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#define sudo_strtobool(_a) sudo_strtobool_v1((_a))
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/* strtoid.c */
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__dso_public id_t sudo_strtoid_v1(const char *str, const char *sep, char **endp, const char **errstr);
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#define sudo_strtoid(_a, _b, _c, _d) sudo_strtoid_v1((_a), (_b), (_c), (_d))
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/* strtomode.c */
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__dso_public int sudo_strtomode_v1(const char *cp, const char **errstr);
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#define sudo_strtomode(_a, _b) sudo_strtomode_v1((_a), (_b))
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/* sudo_printf.c */
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extern int (*sudo_printf)(int msg_type, const char *fmt, ...);
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/* term.c */
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__dso_public bool sudo_term_cbreak_v1(int fd);
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#define sudo_term_cbreak(_a) sudo_term_cbreak_v1((_a))
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__dso_public bool sudo_term_copy_v1(int src, int dst);
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#define sudo_term_copy(_a, _b) sudo_term_copy_v1((_a), (_b))
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__dso_public bool sudo_term_noecho_v1(int fd);
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#define sudo_term_noecho(_a) sudo_term_noecho_v1((_a))
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__dso_public bool sudo_term_raw_v1(int fd, int isig);
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#define sudo_term_raw(_a, _b) sudo_term_raw_v1((_a), (_b))
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__dso_public bool sudo_term_restore_v1(int fd, bool flush);
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#define sudo_term_restore(_a, _b) sudo_term_restore_v1((_a), (_b))
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/* ttysize.c */
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__dso_public void sudo_get_ttysize_v1(int *rowp, int *colp);
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#define sudo_get_ttysize(_a, _b) sudo_get_ttysize_v1((_a), (_b))
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#endif /* SUDO_UTIL_H */
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