reentr.h

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/* -*- buffer-read-only: t -*-
 *
 *    reentr.h
 *
 *    Copyright (C) 2002, 2003, 2005, 2006, 2007 by Larry Wall and others
 *
 *    You may distribute under the terms of either the GNU General Public
 *    License or the Artistic License, as specified in the README file.
 *
 *  !!!!!!!   DO NOT EDIT THIS FILE   !!!!!!!
 *  This file is built by reentr.pl from data in reentr.pl.
 */

#ifndef REENTR_H
#define REENTR_H

/* If compiling for a threaded perl, we will macro-wrap the system/library
 * interfaces (e.g. getpwent()) which have threaded versions
 * (e.g. getpwent_r()), which will handle things correctly for
 * the Perl interpreter, but otherwise (for XS) the wrapping does
 * not take place.  See L<perlxs/Thread-aware system interfaces>.
 */

#ifndef PERL_REENTR_API
# if defined(PERL_CORE) || defined(PERL_EXT)
#  define PERL_REENTR_API 1
# else
#  define PERL_REENTR_API 0
# endif
#endif

#ifdef USE_REENTRANT_API
 
/* Deprecations: some platforms have the said reentrant interfaces
 * but they are declared obsolete and are not to be used.  Often this
 * means that the platform has threadsafed the interfaces (hopefully).
 * All this is OS version dependent, so we are of course fooling ourselves.
 * If you know of more deprecations on some platforms, please add your own
 * (by editing reentr.pl, mind!) */

#ifdef __hpux
#   undef HAS_CRYPT_R
#   undef HAS_DRAND48_R
#   undef HAS_ENDGRENT_R
#   undef HAS_ENDPWENT_R
#   undef HAS_GETGRENT_R
#   undef HAS_GETPWENT_R
#   undef HAS_SETLOCALE_R
#   undef HAS_SRAND48_R
#   undef HAS_STRERROR_R
#   define NETDB_R_OBSOLETE
#endif

#if defined(__osf__) && defined(__alpha) /* Tru64 aka Digital UNIX */
#   undef HAS_CRYPT_R
#   undef HAS_STRERROR_R
#   define NETDB_R_OBSOLETE
#endif

/*
 * As of OpenBSD 3.7, reentrant functions are now working, they just are
 * incompatible with everyone else.  To make OpenBSD happy, we have to
 * memzero out certain structures before calling the functions.
 */
#if defined(__OpenBSD__)
#    define REENTR_MEMZERO(a,b) memzero(a,b)
#else
#    define REENTR_MEMZERO(a,b) 0
#endif 

#ifdef NETDB_R_OBSOLETE
#   undef HAS_ENDHOSTENT_R
#   undef HAS_ENDNETENT_R
#   undef HAS_ENDPROTOENT_R
#   undef HAS_ENDSERVENT_R
#   undef HAS_GETHOSTBYADDR_R
#   undef HAS_GETHOSTBYNAME_R
#   undef HAS_GETHOSTENT_R
#   undef HAS_GETNETBYADDR_R
#   undef HAS_GETNETBYNAME_R
#   undef HAS_GETNETENT_R
#   undef HAS_GETPROTOBYNAME_R
#   undef HAS_GETPROTOBYNUMBER_R
#   undef HAS_GETPROTOENT_R
#   undef HAS_GETSERVBYNAME_R
#   undef HAS_GETSERVBYPORT_R
#   undef HAS_GETSERVENT_R
#   undef HAS_SETHOSTENT_R
#   undef HAS_SETNETENT_R
#   undef HAS_SETPROTOENT_R
#   undef HAS_SETSERVENT_R
#endif

#ifdef I_PWD
#   include <pwd.h>
#endif
#ifdef I_GRP
#   include <grp.h>
#endif
#ifdef I_NETDB
#   include <netdb.h>
#endif
#ifdef I_STDLIB
#   include <stdlib.h>	/* drand48_data */
#endif
#ifdef I_CRYPT
#   ifdef I_CRYPT
#       include <crypt.h>
#   endif
#endif
#ifdef HAS_GETSPNAM_R
#   ifdef I_SHADOW
#       include <shadow.h>
#   endif
#endif

#define REENTRANT_PROTO_B_B	1
#define REENTRANT_PROTO_B_BI	2
#define REENTRANT_PROTO_B_BW	3
#define REENTRANT_PROTO_B_CCD	4
#define REENTRANT_PROTO_B_CCS	5
#define REENTRANT_PROTO_B_IBI	6
#define REENTRANT_PROTO_B_IBW	7
#define REENTRANT_PROTO_B_SB	8
#define REENTRANT_PROTO_B_SBI	9
#define REENTRANT_PROTO_I_BI	10
#define REENTRANT_PROTO_I_BW	11
#define REENTRANT_PROTO_I_CCSBWR	12
#define REENTRANT_PROTO_I_CCSD	13
#define REENTRANT_PROTO_I_CII	14
#define REENTRANT_PROTO_I_CIISD	15
#define REENTRANT_PROTO_I_CSBI	16
#define REENTRANT_PROTO_I_CSBIR	17
#define REENTRANT_PROTO_I_CSBWR	18
#define REENTRANT_PROTO_I_CSBWRE	19
#define REENTRANT_PROTO_I_CSD	20
#define REENTRANT_PROTO_I_CWISBWRE	21
#define REENTRANT_PROTO_I_CWISD	22
#define REENTRANT_PROTO_I_D	23
#define REENTRANT_PROTO_I_H	24
#define REENTRANT_PROTO_I_IBI	25
#define REENTRANT_PROTO_I_IBW	26
#define REENTRANT_PROTO_I_ICBI	27
#define REENTRANT_PROTO_I_ICSBWR	28
#define REENTRANT_PROTO_I_ICSD	29
#define REENTRANT_PROTO_I_ID	30
#define REENTRANT_PROTO_I_IISD	31
#define REENTRANT_PROTO_I_ISBWR	32
#define REENTRANT_PROTO_I_ISD	33
#define REENTRANT_PROTO_I_LISBI	34
#define REENTRANT_PROTO_I_LISD	35
#define REENTRANT_PROTO_I_LS	36
#define REENTRANT_PROTO_I_SB	37
#define REENTRANT_PROTO_I_SBI	38
#define REENTRANT_PROTO_I_SBIE	39
#define REENTRANT_PROTO_I_SBIH	40
#define REENTRANT_PROTO_I_SBIR	41
#define REENTRANT_PROTO_I_SBWR	42
#define REENTRANT_PROTO_I_SBWRE	43
#define REENTRANT_PROTO_I_SD	44
#define REENTRANT_PROTO_I_ST	45
#define REENTRANT_PROTO_I_St	46
#define REENTRANT_PROTO_I_TISD	47
#define REENTRANT_PROTO_I_TS	48
#define REENTRANT_PROTO_I_TSBI	49
#define REENTRANT_PROTO_I_TSBIR	50
#define REENTRANT_PROTO_I_TSBWR	51
#define REENTRANT_PROTO_I_TSR	52
#define REENTRANT_PROTO_I_TsISBWRE	53
#define REENTRANT_PROTO_I_UISBWRE	54
#define REENTRANT_PROTO_I_iS	55
#define REENTRANT_PROTO_I_lS	56
#define REENTRANT_PROTO_I_uISBWRE	57
#define REENTRANT_PROTO_S_CBI	58
#define REENTRANT_PROTO_S_CCSBI	59
#define REENTRANT_PROTO_S_CIISBIE	60
#define REENTRANT_PROTO_S_CSBI	61
#define REENTRANT_PROTO_S_CSBIE	62
#define REENTRANT_PROTO_S_CWISBIE	63
#define REENTRANT_PROTO_S_CWISBWIE	64
#define REENTRANT_PROTO_S_ICSBI	65
#define REENTRANT_PROTO_S_ISBI	66
#define REENTRANT_PROTO_S_LISBI	67
#define REENTRANT_PROTO_S_SBI	68
#define REENTRANT_PROTO_S_SBIE	69
#define REENTRANT_PROTO_S_SBW	70
#define REENTRANT_PROTO_S_TISBI	71
#define REENTRANT_PROTO_S_TS	72
#define REENTRANT_PROTO_S_TSBI	73
#define REENTRANT_PROTO_S_TSBIE	74
#define REENTRANT_PROTO_S_TWISBIE	75
#define REENTRANT_PROTO_V_D	76
#define REENTRANT_PROTO_V_H	77
#define REENTRANT_PROTO_V_ID	78

/* Defines for indicating which special features are supported. */

/* The getgrent getgrgid getgrnam using buffer? */

#if defined(HAS_GETGRENT_R) && (GETGRENT_R_PROTO == REENTRANT_PROTO_I_SBWR || GETGRENT_R_PROTO == REENTRANT_PROTO_I_SBIR || GETGRENT_R_PROTO == REENTRANT_PROTO_S_SBW || GETGRENT_R_PROTO == REENTRANT_PROTO_S_SBI || GETGRENT_R_PROTO == REENTRANT_PROTO_I_SBI || GETGRENT_R_PROTO == REENTRANT_PROTO_I_SBIH)
#   define GETGRENT_R_HAS_BUFFER
#else
#   undef  GETGRENT_R_HAS_BUFFER
#endif
#if defined(HAS_GETGRGID_R) && (GETGRGID_R_PROTO == REENTRANT_PROTO_I_TSBWR || GETGRGID_R_PROTO == REENTRANT_PROTO_I_TSBIR || GETGRGID_R_PROTO == REENTRANT_PROTO_I_TSBI || GETGRGID_R_PROTO == REENTRANT_PROTO_S_TSBI)
#   define GETGRGID_R_HAS_BUFFER
#else
#   undef  GETGRGID_R_HAS_BUFFER
#endif
#if defined(HAS_GETGRNAM_R) && (GETGRNAM_R_PROTO == REENTRANT_PROTO_I_CSBWR || GETGRNAM_R_PROTO == REENTRANT_PROTO_I_CSBIR || GETGRNAM_R_PROTO == REENTRANT_PROTO_S_CBI || GETGRNAM_R_PROTO == REENTRANT_PROTO_I_CSBI || GETGRNAM_R_PROTO == REENTRANT_PROTO_S_CSBI)
#   define GETGRNAM_R_HAS_BUFFER
#else
#   undef  GETGRNAM_R_HAS_BUFFER
#endif

/* Any of the getgrent getgrgid getgrnam using buffer? */

#if (defined(GETGRENT_R_HAS_BUFFER) || defined(GETGRGID_R_HAS_BUFFER) || defined(GETGRNAM_R_HAS_BUFFER))
#   define USE_GRENT_BUFFER
#else
#   undef  USE_GRENT_BUFFER
#endif

/* The getgrent getgrgid getgrnam using ptr? */

#if defined(HAS_GETGRENT_R) && (GETGRENT_R_PROTO == REENTRANT_PROTO_I_SBWR || GETGRENT_R_PROTO == REENTRANT_PROTO_I_SBIR)
#   define GETGRENT_R_HAS_PTR
#else
#   undef  GETGRENT_R_HAS_PTR
#endif
#if defined(HAS_GETGRGID_R) && (GETGRGID_R_PROTO == REENTRANT_PROTO_I_TSBWR || GETGRGID_R_PROTO == REENTRANT_PROTO_I_TSBIR)
#   define GETGRGID_R_HAS_PTR
#else
#   undef  GETGRGID_R_HAS_PTR
#endif
#if defined(HAS_GETGRNAM_R) && (GETGRNAM_R_PROTO == REENTRANT_PROTO_I_CSBWR || GETGRNAM_R_PROTO == REENTRANT_PROTO_I_CSBIR)
#   define GETGRNAM_R_HAS_PTR
#else
#   undef  GETGRNAM_R_HAS_PTR
#endif