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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 
     22 /*
     23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 /*
     28  * This is where all the interfaces that are internal to libc
     29  * which do not have a better home live
     30  */
     31 
     32 #ifndef _LIBC_H
     33 #define	_LIBC_H
     34 
     35 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     36 
     37 #include <thread.h>
     38 #include <stdio.h>
     39 #include <dirent.h>
     40 #include <ucontext.h>
     41 #include <nsswitch.h>
     42 #include <stddef.h>
     43 #include <poll.h>
     44 #include <sys/dl.h>
     45 #include <sys/door.h>
     46 #include <sys/ieeefp.h>
     47 #include <sys/mount.h>
     48 #include <floatingpoint.h>
     49 #include <nl_types.h>
     50 #include <regex.h>
     51 #include <stdarg.h>
     52 #include <wchar.h>
     53 #include <wctype.h>
     54 #include <libnvpair.h>
     55 
     56 #ifdef	__cplusplus
     57 extern "C" {
     58 #endif
     59 
     60 extern void __set_panicstr(const char *);
     61 extern void _rewind_unlocked(FILE *);
     62 extern long _sysconfig(int);
     63 extern int kill(pid_t pid, int sig);
     64 
     65 extern int primary_link_map;
     66 extern int thr_main(void);
     67 extern int thr_kill(thread_t tid, int sig);
     68 extern thread_t thr_self(void);
     69 extern int mutex_lock(mutex_t *mp);
     70 extern int mutex_unlock(mutex_t *mp);
     71 extern void callout_lock_enter(void);
     72 extern void callout_lock_exit(void);
     73 extern void *lmalloc(size_t);
     74 extern void lfree(void *, size_t);
     75 extern void libc_nvlist_free(nvlist_t *);
     76 extern int libc_nvlist_lookup_uint64(nvlist_t *, const char *, uint64_t *);
     77 extern void *libc_malloc(size_t);
     78 extern void *libc_realloc(void *, size_t);
     79 extern void libc_free(void *);
     80 extern char *libc_strdup(const char *);
     81 extern int _pollsys(struct pollfd *, nfds_t, const timespec_t *,
     82 	const sigset_t *);
     83 
     84 /*
     85  * The private_DIR structure is the same as the DIR structure,
     86  * with the addition of a mutex lock for libc's internal use.
     87  */
     88 typedef struct {
     89 	DIR	dd_dir;
     90 	mutex_t	dd_lock;
     91 } private_DIR;
     92 
     93 #if !defined(_LP64)
     94 /*
     95  * getdents64 transitional interface is intentionally internal to libc
     96  */
     97 extern int getdents64(int, struct dirent64 *, size_t);
     98 #endif
     99 
    100 extern int _scrwidth(wchar_t);
    101 
    102 extern int64_t __div64(int64_t, int64_t);
    103 extern int64_t __rem64(int64_t, int64_t);
    104 extern uint64_t __udiv64(uint64_t, uint64_t);
    105 extern uint64_t __urem64(uint64_t, uint64_t);
    106 extern int64_t __mul64(int64_t, int64_t);
    107 extern uint64_t __umul64(uint64_t, uint64_t);
    108 
    109 
    110 /*
    111  * Rounding direction functions
    112  */
    113 #if defined(__i386) || defined(__amd64)
    114 extern enum fp_direction_type __xgetRD(void);
    115 #elif defined(__sparc)
    116 extern enum fp_direction_type _QgetRD(void);
    117 #else
    118 #error Unknown architecture!
    119 #endif
    120 
    121 
    122 /*
    123  * defined in hex_bin.c
    124  */
    125 extern void __hex_to_single(decimal_record *, enum fp_direction_type,
    126 	single *, fp_exception_field_type *);
    127 extern void __hex_to_double(decimal_record *, enum fp_direction_type,
    128 	double *, fp_exception_field_type *);
    129 #if defined(__sparc)
    130 extern void __hex_to_quadruple(decimal_record *, enum fp_direction_type,
    131 	quadruple *, fp_exception_field_type *);
    132 #elif defined(__i386) || defined(__amd64)
    133 extern void __hex_to_extended(decimal_record *, enum fp_direction_type,
    134 	extended *, fp_exception_field_type *);
    135 #else
    136 #error Unknown architecture
    137 #endif
    138 
    139 /*
    140  * defined in ctime.c
    141  */
    142 extern char	*__posix_asctime_r(const struct tm *, char *);
    143 
    144 /*
    145  * Internal routine from fsync.c
    146  */
    147 extern int __fdsync(int, int);	/* 2nd arg may be wrong in 64bit mode */
    148 
    149 /*
    150  * Internal routine from _xregs_clrptr.c
    151  */
    152 extern void _xregs_clrptr(ucontext_t *);
    153 
    154 /*
    155  * Internal routine from nfssys.c
    156  */
    157 extern int _nfssys(int, void *); /* int in 64bit mode ???, void * ??? */
    158 
    159 /*
    160  * Internal routine from psetsys.c
    161  */
    162 extern int _pset(int, ...); /* int in 64bit mode ??? */
    163 
    164 /*
    165  * defined in sigpending.s
    166  */
    167 extern int __sigfillset(sigset_t *);
    168 
    169 /*
    170  * defined in sparc/fp/_Q_set_except.c and i386/fp/exception.c
    171  */
    172 extern int _Q_set_exception(unsigned int);
    173 
    174 /*
    175  * defined in nsparse.c
    176  */
    177 extern struct __nsw_switchconfig *_nsw_getoneconfig(const char *name,
    178 	char *linep, enum __nsw_parse_err *);
    179 extern struct __nsw_switchconfig_v1 *_nsw_getoneconfig_v1(const char *name,
    180 	char *linep, enum __nsw_parse_err *);
    181 
    182 /*
    183  * Internal routine from getusershell.c
    184  */
    185 extern char *getusershell(void);
    186 
    187 /*
    188  * defined in _sigaction.s
    189  */
    190 extern int __sigaction(int, const struct sigaction *, struct sigaction *);
    191 
    192 /*
    193  * defined in _getsp.s
    194  */
    195 extern greg_t _getsp(void);
    196 
    197 /*
    198  * defined in _so_setsockopt.s
    199  */
    200 extern int _so_setsockopt(int, int, int, const char *, int);
    201 
    202 /*
    203  * defined in _so_getsockopt.s
    204  */
    205 extern int _so_getsockopt(int, int, int, char *, int *);
    206 
    207 /*
    208  * defined in lsign.s
    209  */
    210 extern int lsign(dl_t);
    211 
    212 /*
    213  * defined in ucontext.s
    214  */
    215 extern int __getcontext(ucontext_t *);
    216 
    217 /*
    218  * defined in door.s
    219  */
    220 extern int __door_info(int, door_info_t *);
    221 extern int __door_call(int, door_arg_t *);
    222 
    223 /*
    224  * defined in _portfs.s
    225  */
    226 extern int64_t _portfs(int, uintptr_t, uintptr_t, uintptr_t, uintptr_t,
    227     uintptr_t);
    228 
    229 /*
    230  * defined in xpg4.c
    231  */
    232 extern int __xpg4;		/* global */
    233 extern int libc__xpg4;		/* copy of __xpg4, private to libc */
    234 
    235 /*
    236  * defined in xpg6.c
    237  */
    238 extern uint_t __xpg6;		/* global */
    239 extern uint_t libc__xpg6;	/* copy of __xpg6, private to libc */
    240 
    241 /*
    242  * defined in port/stdio/doscan.c
    243  */
    244 extern int _doscan(FILE *, const char *, va_list);
    245 extern int __doscan_u(FILE *, const char *, va_list, int);
    246 extern int __wdoscan_u(FILE *, const wchar_t *, va_list, int);
    247 
    248 #ifndef _LP64
    249 /* Flag for _ndoprnt() and _doscan_u() */
    250 #define	_F_INTMAX32	0x1	/* if set read 4 bytes for u/intmax %j */
    251 extern int _fprintf_c89(FILE *, const char *, ...);
    252 extern int _printf_c89(const char *, ...);
    253 extern int _snprintf_c89(char *, size_t, const char *, ...);
    254 extern int _sprintf_c89(char *, const char *, ...);
    255 extern int _wprintf_c89(const wchar_t *, ...);
    256 extern int _fwprintf_c89(FILE *, const wchar_t *, ...);
    257 extern int _swprintf_c89(wchar_t *, size_t, const wchar_t *, ...);
    258 extern int _vfprintf_c89(FILE *, const char *, va_list);
    259 extern int _vprintf_c89(const char *, va_list);
    260 extern int _vsnprintf_c89(char *, size_t, const char *, va_list);
    261 extern int _vsprintf_c89(char *, const char *, va_list);
    262 extern int _vwprintf_c89(const wchar_t *, va_list);
    263 extern int _vfwprintf_c89(FILE *, const wchar_t *, va_list);
    264 extern int _vswprintf_c89(wchar_t *, size_t, const wchar_t *, va_list);
    265 extern int _scanf_c89(const char *, ...);
    266 extern int _fscanf_c89(FILE *, const char *, ...);
    267 extern int _sscanf_c89(const char *, const char *, ...);
    268 extern int _vscanf_c89(const char *, va_list);
    269 extern int _vfscanf_c89(FILE *, const char *, va_list);
    270 extern int _vsscanf_c89(const char *, const char *, va_list);
    271 extern int _vwscanf_c89(const wchar_t *, va_list);
    272 extern int _vfwscanf_c89(FILE *, const wchar_t *, va_list);
    273 extern int _vswscanf_c89(const wchar_t *, const wchar_t *, va_list);
    274 extern int _wscanf_c89(const wchar_t *, ...);
    275 extern int _fwscanf_c89(FILE *, const wchar_t *, ...);
    276 extern int _swscanf_c89(const wchar_t *, const wchar_t *, ...);
    277 #endif	/*	_LP64	*/
    278 
    279 /*
    280  * defined in port/stdio/popen.c
    281  */
    282 extern int _insert(pid_t pid, int fd);
    283 extern pid_t _delete(int fd);
    284 
    285 /*
    286  * defined in port/print/doprnt.c
    287  */
    288 extern ssize_t	_wdoprnt(const wchar_t *, va_list, FILE *);
    289 
    290 /*
    291  * defined in fgetwc.c
    292  */
    293 extern wint_t _fgetwc_unlocked(FILE *);
    294 extern wint_t __getwc_xpg5(FILE *);
    295 extern wint_t __fgetwc_xpg5(FILE *);
    296 extern wint_t _getwc(FILE *);
    297 
    298 /*
    299  * defined in fputwc.c
    300  */
    301 extern wint_t __putwc_xpg5(wint_t, FILE *);
    302 extern wint_t _putwc(wint_t, FILE *);
    303 
    304 /*
    305  * defined in ungetwc.c
    306  */
    307 extern wint_t	__ungetwc_xpg5(wint_t, FILE *);
    308 
    309 #ifdef	__cplusplus
    310 }
    311 #endif
    312 
    313 #endif /* _LIBC_H */
    314