[perl5.git] / reentr.c

/*
 *    reentr.c
 *
 *    Copyright (c) 1997-2002, Larry Wall
 *
 *    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 reentrl.pl from data in reentr.pl.
 *
 * "Saruman," I said, standing away from him, "only one hand at a time can
 *  wield the One, and you know that well, so do not trouble to say we!"
 *
 */

#include "EXTERN.h"
#define PERL_IN_REENTR_C
#include "perl.h"
#include "reentr.h"

void
Perl_reentrant_size(pTHX) {
#ifdef USE_REENTRANT_API
#define REENTRANTSMALLSIZE	 256	/* Make something up. */
#define REENTRANTUSUALSIZE	4096	/* Make something up. */
#ifdef HAS_ASCTIME_R
	PL_reentrant_buffer->_asctime_size = REENTRANTSMALLSIZE;
#endif /* HAS_ASCTIME_R */
#ifdef HAS_CRYPT_R
#endif /* HAS_CRYPT_R */
#ifdef HAS_CTIME_R
	PL_reentrant_buffer->_ctime_size = REENTRANTSMALLSIZE;
#endif /* HAS_CTIME_R */
#ifdef HAS_DRAND48_R
#endif /* HAS_DRAND48_R */
#ifdef HAS_GETGRNAM_R
#   if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
	PL_reentrant_buffer->_grent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
	if (PL_reentrant_buffer->_pwent_size == -1)
		PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
#   else
#       if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
	PL_reentrant_buffer->_grent_size = SIABUFSIZ;
#       else
#           ifdef __sgi
	PL_reentrant_buffer->_grent_size = BUFSIZ;
#           else
	PL_reentrant_buffer->_grent_size = REENTRANTUSUALSIZE;
#           endif
#       endif
#   endif 
#endif /* HAS_GETGRNAM_R */
#ifdef HAS_GETHOSTBYNAME_R
#if   !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
	PL_reentrant_buffer->_hostent_size = REENTRANTUSUALSIZE;
#endif
#endif /* HAS_GETHOSTBYNAME_R */
#ifdef HAS_GETLOGIN_R
	PL_reentrant_buffer->_getlogin_size = REENTRANTSMALLSIZE;
#endif /* HAS_GETLOGIN_R */
#ifdef HAS_GETNETBYNAME_R
#if   !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
	PL_reentrant_buffer->_netent_size = REENTRANTUSUALSIZE;
#endif
#endif /* HAS_GETNETBYNAME_R */
#ifdef HAS_GETPROTOBYNAME_R
#if   !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
	PL_reentrant_buffer->_protoent_size = REENTRANTUSUALSIZE;
#endif
#endif /* HAS_GETPROTOBYNAME_R */
#ifdef HAS_GETPWNAM_R
#   if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
	PL_reentrant_buffer->_pwent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
	if (PL_reentrant_buffer->_pwent_size == -1)
		PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
#   else
#       if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
	PL_reentrant_buffer->_pwent_size = SIABUFSIZ;
#       else
#           ifdef __sgi
	PL_reentrant_buffer->_pwent_size = BUFSIZ;
#           else
	PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
#           endif
#       endif
#   endif 
#endif /* HAS_GETPWNAM_R */
#ifdef HAS_GETSERVBYNAME_R
#if   !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
	PL_reentrant_buffer->_servent_size = REENTRANTUSUALSIZE;
#endif
#endif /* HAS_GETSERVBYNAME_R */
#ifdef HAS_GETSPNAM_R
#   if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
	PL_reentrant_buffer->_spent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
	if (PL_reentrant_buffer->_pwent_size == -1)
		PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
#   else
#       if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
	PL_reentrant_buffer->_spent_size = SIABUFSIZ;
#       else
#           ifdef __sgi
	PL_reentrant_buffer->_spent_size = BUFSIZ;
#           else
	PL_reentrant_buffer->_spent_size = REENTRANTUSUALSIZE;
#           endif
#       endif
#   endif 
#endif /* HAS_GETSPNAM_R */
#ifdef HAS_GMTIME_R
#endif /* HAS_GMTIME_R */
#ifdef HAS_LOCALTIME_R
#endif /* HAS_LOCALTIME_R */
#ifdef HAS_RANDOM_R
#endif /* HAS_RANDOM_R */
#ifdef HAS_READDIR_R
	/* This is the size Solaris recommends.
	 * (though we go static, should use pathconf() instead) */
	PL_reentrant_buffer->_readdir_size = sizeof(struct dirent) + MAXPATHLEN + 1;
#endif /* HAS_READDIR_R */
#ifdef HAS_READDIR64_R
	/* This is the size Solaris recommends.
	 * (though we go static, should use pathconf() instead) */
	PL_reentrant_buffer->_readdir64_size = sizeof(struct dirent64) + MAXPATHLEN + 1;
#endif /* HAS_READDIR64_R */
#ifdef HAS_SETLOCALE_R
	PL_reentrant_buffer->_setlocale_size = REENTRANTSMALLSIZE;
#endif /* HAS_SETLOCALE_R */
#ifdef HAS_STRERROR_R
	PL_reentrant_buffer->_strerror_size = REENTRANTSMALLSIZE;
#endif /* HAS_STRERROR_R */
#ifdef HAS_TTYNAME_R
	PL_reentrant_buffer->_ttyname_size = REENTRANTSMALLSIZE;
#endif /* HAS_TTYNAME_R */

#endif /* USE_REENTRANT_API */
}

void
Perl_reentrant_init(pTHX) {
#ifdef USE_REENTRANT_API
	New(31337, PL_reentrant_buffer, 1, REENTR);
	Perl_reentrant_size(aTHX);
#ifdef HAS_ASCTIME_R
	New(31338, PL_reentrant_buffer->_asctime_buffer, PL_reentrant_buffer->_asctime_size, char);
#endif /* HAS_ASCTIME_R */
#ifdef HAS_CRYPT_R
#ifdef __GLIBC__
	PL_reentrant_buffer->_crypt_struct.initialized = 0;
#endif
#endif /* HAS_CRYPT_R */
#ifdef HAS_CTIME_R
	New(31338, PL_reentrant_buffer->_ctime_buffer, PL_reentrant_buffer->_ctime_size, char);
#endif /* HAS_CTIME_R */
#ifdef HAS_DRAND48_R
#endif /* HAS_DRAND48_R */
#ifdef HAS_GETGRNAM_R
#   ifdef USE_GRENT_FPTR
	PL_reentrant_buffer->_grent_fptr = NULL;
#   endif
	New(31338, PL_reentrant_buffer->_grent_buffer, PL_reentrant_buffer->_grent_size, char);
#endif /* HAS_GETGRNAM_R */
#ifdef HAS_GETHOSTBYNAME_R
#if   !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
	New(31338, PL_reentrant_buffer->_hostent_buffer, PL_reentrant_buffer->_hostent_size, char);
#endif
#endif /* HAS_GETHOSTBYNAME_R */
#ifdef HAS_GETLOGIN_R
	New(31338, PL_reentrant_buffer->_getlogin_buffer, PL_reentrant_buffer->_getlogin_size, char);
#endif /* HAS_GETLOGIN_R */
#ifdef HAS_GETNETBYNAME_R
#if   !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
	New(31338, PL_reentrant_buffer->_netent_buffer, PL_reentrant_buffer->_netent_size, char);
#endif
#endif /* HAS_GETNETBYNAME_R */
#ifdef HAS_GETPROTOBYNAME_R
#if   !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
	New(31338, PL_reentrant_buffer->_protoent_buffer, PL_reentrant_buffer->_protoent_size, char);
#endif
#endif /* HAS_GETPROTOBYNAME_R */
#ifdef HAS_GETPWNAM_R
#   ifdef USE_PWENT_FPTR
	PL_reentrant_buffer->_pwent_fptr = NULL;
#   endif
	New(31338, PL_reentrant_buffer->_pwent_buffer, PL_reentrant_buffer->_pwent_size, char);
#endif /* HAS_GETPWNAM_R */
#ifdef HAS_GETSERVBYNAME_R
#if   !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
	New(31338, PL_reentrant_buffer->_servent_buffer, PL_reentrant_buffer->_servent_size, char);
#endif
#endif /* HAS_GETSERVBYNAME_R */
#ifdef HAS_GETSPNAM_R
#   ifdef USE_SPENT_FPTR
	PL_reentrant_buffer->_spent_fptr = NULL;
#   endif
	New(31338, PL_reentrant_buffer->_spent_buffer, PL_reentrant_buffer->_spent_size, char);
#endif /* HAS_GETSPNAM_R */
#ifdef HAS_GMTIME_R
#endif /* HAS_GMTIME_R */
#ifdef HAS_LOCALTIME_R
#endif /* HAS_LOCALTIME_R */
#ifdef HAS_RANDOM_R
#endif /* HAS_RANDOM_R */
#ifdef HAS_READDIR_R
	PL_reentrant_buffer->_readdir_struct = (struct dirent*)safemalloc(PL_reentrant_buffer->_readdir_size);
#endif /* HAS_READDIR_R */
#ifdef HAS_READDIR64_R
	PL_reentrant_buffer->_readdir64_struct = (struct dirent64*)safemalloc(PL_reentrant_buffer->_readdir64_size);
#endif /* HAS_READDIR64_R */
#ifdef HAS_SETLOCALE_R
	New(31338, PL_reentrant_buffer->_setlocale_buffer, PL_reentrant_buffer->_setlocale_size, char);
#endif /* HAS_SETLOCALE_R */
#ifdef HAS_STRERROR_R
	New(31338, PL_reentrant_buffer->_strerror_buffer, PL_reentrant_buffer->_strerror_size, char);
#endif /* HAS_STRERROR_R */
#ifdef HAS_TTYNAME_R
	New(31338, PL_reentrant_buffer->_ttyname_buffer, PL_reentrant_buffer->_ttyname_size, char);
#endif /* HAS_TTYNAME_R */

#endif /* USE_REENTRANT_API */
}

void
Perl_reentrant_free(pTHX) {
#ifdef USE_REENTRANT_API
#ifdef HAS_ASCTIME_R
	Safefree(PL_reentrant_buffer->_asctime_buffer);
#endif /* HAS_ASCTIME_R */
#ifdef HAS_CRYPT_R
#endif /* HAS_CRYPT_R */
#ifdef HAS_CTIME_R
	Safefree(PL_reentrant_buffer->_ctime_buffer);
#endif /* HAS_CTIME_R */
#ifdef HAS_DRAND48_R
#endif /* HAS_DRAND48_R */
#ifdef HAS_GETGRNAM_R
	Safefree(PL_reentrant_buffer->_grent_buffer);
#endif /* HAS_GETGRNAM_R */
#ifdef HAS_GETHOSTBYNAME_R
#if   !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
	Safefree(PL_reentrant_buffer->_hostent_buffer);
#endif
#endif /* HAS_GETHOSTBYNAME_R */
#ifdef HAS_GETLOGIN_R
	Safefree(PL_reentrant_buffer->_getlogin_buffer);
#endif /* HAS_GETLOGIN_R */
#ifdef HAS_GETNETBYNAME_R
#if   !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
	Safefree(PL_reentrant_buffer->_netent_buffer);
#endif
#endif /* HAS_GETNETBYNAME_R */
#ifdef HAS_GETPROTOBYNAME_R
#if   !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
	Safefree(PL_reentrant_buffer->_protoent_buffer);
#endif
#endif /* HAS_GETPROTOBYNAME_R */
#ifdef HAS_GETPWNAM_R
	Safefree(PL_reentrant_buffer->_pwent_buffer);
#endif /* HAS_GETPWNAM_R */
#ifdef HAS_GETSERVBYNAME_R
#if   !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
	Safefree(PL_reentrant_buffer->_servent_buffer);
#endif
#endif /* HAS_GETSERVBYNAME_R */
#ifdef HAS_GETSPNAM_R
	Safefree(PL_reentrant_buffer->_spent_buffer);
#endif /* HAS_GETSPNAM_R */
#ifdef HAS_GMTIME_R
#endif /* HAS_GMTIME_R */
#ifdef HAS_LOCALTIME_R
#endif /* HAS_LOCALTIME_R */
#ifdef HAS_RANDOM_R
#endif /* HAS_RANDOM_R */
#ifdef HAS_READDIR_R
	Safefree(PL_reentrant_buffer->_readdir_struct);
#endif /* HAS_READDIR_R */
#ifdef HAS_READDIR64_R
	Safefree(PL_reentrant_buffer->_readdir64_struct);
#endif /* HAS_READDIR64_R */
#ifdef HAS_SETLOCALE_R
	Safefree(PL_reentrant_buffer->_setlocale_buffer);
#endif /* HAS_SETLOCALE_R */
#ifdef HAS_STRERROR_R
	Safefree(PL_reentrant_buffer->_strerror_buffer);
#endif /* HAS_STRERROR_R */
#ifdef HAS_TTYNAME_R
	Safefree(PL_reentrant_buffer->_ttyname_buffer);
#endif /* HAS_TTYNAME_R */

	Safefree(PL_reentrant_buffer);
#endif /* USE_REENTRANT_API */
}

void*
Perl_reentrant_retry(const char *f, ...)
{
    dTHX;
    void *retptr = NULL;
#ifdef USE_REENTRANT_API
#  if defined(USE_HOSTENT_BUFFER) || defined(USE_GRENT_BUFFER) || defined(USE_NETENT_BUFFER) || defined(USE_PWENT_BUFFER) || defined(USE_PROTOENT_BUFFER) || defined(USE_SRVENT_BUFFER)
    void *p0;
#  endif
#  if defined(USE_SERVENT_BUFFER)
    void *p1;
#  endif
#  if defined(USE_HOSTENT_BUFFER)
    size_t asize;
#  endif
#  if defined(USE_HOSTENT_BUFFER) || defined(USE_NETENT_BUFFER) || defined(USE_PROTOENT_BUFFER) || defined(USE_SERVENT_BUFFER)
    int anint;
#  endif
    va_list ap;

    va_start(ap, f);

#define REENTRANTHALFMAXSIZE 32768 /* The maximum may end up twice this. */

    switch (PL_op->op_type) {
#ifdef USE_HOSTENT_BUFFER
    case OP_GHBYADDR:
    case OP_GHBYNAME:
    case OP_GHOSTENT:
	{
	    if (PL_reentrant_buffer->_hostent_size <= REENTRANTHALFMAXSIZE) {
		PL_reentrant_buffer->_hostent_size *= 2;
		Renew(PL_reentrant_buffer->_hostent_buffer,
		      PL_reentrant_buffer->_hostent_size, char);
		switch (PL_op->op_type) {
	        case OP_GHBYADDR:
		    p0    = va_arg(ap, void *);
		    asize = va_arg(ap, size_t);
		    anint  = va_arg(ap, int);
		    retptr = gethostbyaddr(p0, asize, anint); break;
	        case OP_GHBYNAME:
		    p0 = va_arg(ap, void *);
		    retptr = gethostbyname(p0); break;
	        case OP_GHOSTENT:
		    retptr = gethostent(); break;
	        default:
		    break;
	        }
	    }
	}
	break;
#endif
#ifdef USE_GRENT_BUFFER
    case OP_GGRNAM:
    case OP_GGRGID:
    case OP_GGRENT:
	{
	    if (PL_reentrant_buffer->_grent_size <= REENTRANTHALFMAXSIZE) {
		Gid_t gid;
		PL_reentrant_buffer->_grent_size *= 2;
		Renew(PL_reentrant_buffer->_grent_buffer,
		      PL_reentrant_buffer->_grent_size, char);
		switch (PL_op->op_type) {
	        case OP_GGRNAM:
		    p0 = va_arg(ap, void *);
		    retptr = getgrnam(p0); break;
	        case OP_GGRGID:
		    gid = va_arg(ap, Gid_t);
		    retptr = getgrgid(gid); break;
	        case OP_GGRENT:
		    retptr = getgrent(); break;
	        default:
		    break;
	        }
	    }
	}
	break;
#endif
#ifdef USE_NETENT_BUFFER
    case OP_GNBYADDR:
    case OP_GNBYNAME:
    case OP_GNETENT:
	{
	    if (PL_reentrant_buffer->_netent_size <= REENTRANTHALFMAXSIZE) {
		Netdb_net_t net;
		PL_reentrant_buffer->_netent_size *= 2;
		Renew(PL_reentrant_buffer->_netent_buffer,
		      PL_reentrant_buffer->_netent_size, char);
		switch (PL_op->op_type) {
	        case OP_GNBYADDR:
		    net = va_arg(ap, Netdb_net_t);
		    anint = va_arg(ap, int);
		    retptr = getnetbyaddr(net, anint); break;
	        case OP_GNBYNAME:
		    p0 = va_arg(ap, void *);
		    retptr = getnetbyname(p0); break;
	        case OP_GNETENT:
		    retptr = getnetent(); break;
	        default:
		    break;
	        }
	    }
	}
	break;
#endif
#ifdef USE_PWENT_BUFFER
    case OP_GPWNAM:
    case OP_GPWUID:
    case OP_GPWENT:
	{
	    if (PL_reentrant_buffer->_pwent_size <= REENTRANTHALFMAXSIZE) {
		Uid_t uid;
		PL_reentrant_buffer->_pwent_size *= 2;
		Renew(PL_reentrant_buffer->_pwent_buffer,
		      PL_reentrant_buffer->_pwent_size, char);
		switch (PL_op->op_type) {
	        case OP_GPWNAM:
		    p0 = va_arg(ap, void *);
		    retptr = getpwnam(p0); break;
	        case OP_GPWUID:
		    uid = va_arg(ap, Uid_t);
		    retptr = getpwuid(uid); break;
	        case OP_GPWENT:
		    retptr = getpwent(); break;
	        default:
		    break;
	        }
	    }
	}
	break;
#endif
#ifdef USE_PROTOENT_BUFFER
    case OP_GPBYNAME:
    case OP_GPBYNUMBER:
    case OP_GPROTOENT:
	{
	    if (PL_reentrant_buffer->_protoent_size <= REENTRANTHALFMAXSIZE) {
		PL_reentrant_buffer->_protoent_size *= 2;
		Renew(PL_reentrant_buffer->_protoent_buffer,
		      PL_reentrant_buffer->_protoent_size, char);
		switch (PL_op->op_type) {
	        case OP_GPBYNAME:
		    p0 = va_arg(ap, void *);
		    retptr = getprotobyname(p0); break;
	        case OP_GPBYNUMBER:
		    anint = va_arg(ap, int);
		    retptr = getprotobynumber(anint); break;
	        case OP_GPROTOENT:
		    retptr = getprotoent(); break;
	        default:
		    break;
	        }
	    }
	}
	break;
#endif
#ifdef USE_SERVENT_BUFFER
    case OP_GSBYNAME:
    case OP_GSBYPORT:
    case OP_GSERVENT:
	{
	    if (PL_reentrant_buffer->_servent_size <= REENTRANTHALFMAXSIZE) {
		PL_reentrant_buffer->_servent_size *= 2;
		Renew(PL_reentrant_buffer->_servent_buffer,
		      PL_reentrant_buffer->_servent_size, char);
		switch (PL_op->op_type) {
	        case OP_GSBYNAME:
		    p0 = va_arg(ap, void *);
		    p1 = va_arg(ap, void *);
		    retptr = getservbyname(p0, p1); break;
	        case OP_GSBYPORT:
		    anint = va_arg(ap, int);
		    p0 = va_arg(ap, void *);
		    retptr = getservbyport(anint, p0); break;
	        case OP_GSERVENT:
		    retptr = getservent(); break;
	        default:
		    break;
	        }
	    }
	}
	break;
#endif
    default:
	/* Not known how to retry, so just fail. */
	break;
    }

    va_end(ap);
#endif
    return retptr;
}
Commit	Line	Data
10bc17b6 JH	1	/*
	2	* reentr.c
	3	*
	4	* Copyright (c) 1997-2002, Larry Wall
	5	*
	6	* You may distribute under the terms of either the GNU General Public
	7	* License or the Artistic License, as specified in the README file.
	8	*
	9	* !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
	10	* This file is built by reentrl.pl from data in reentr.pl.
	11	*
	12	* "Saruman," I said, standing away from him, "only one hand at a time can
	13	* wield the One, and you know that well, so do not trouble to say we!"
	14	*
	15	*/
	16
	17	#include "EXTERN.h"
	18	#define PERL_IN_REENTR_C
	19	#include "perl.h"
	20	#include "reentr.h"
	21
	22	void
	23	Perl_reentrant_size(pTHX) {
	24	#ifdef USE_REENTRANT_API
8695fa85 SR	25	#define REENTRANTSMALLSIZE 256 /* Make something up. */
8695fa85 SR	26	#define REENTRANTUSUALSIZE 4096 /* Make something up. */
10bc17b6	27	#ifdef HAS_ASCTIME_R
8695fa85	28	PL_reentrant_buffer->_asctime_size = REENTRANTSMALLSIZE;
10bc17b6 JH	29	#endif /* HAS_ASCTIME_R */
	30	#ifdef HAS_CRYPT_R
	31	#endif /* HAS_CRYPT_R */
	32	#ifdef HAS_CTIME_R
8695fa85	33	PL_reentrant_buffer->_ctime_size = REENTRANTSMALLSIZE;
10bc17b6 JH	34	#endif /* HAS_CTIME_R */
	35	#ifdef HAS_DRAND48_R
	36	#endif /* HAS_DRAND48_R */
	37	#ifdef HAS_GETGRNAM_R
f7937171 JH	38	# if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
	39	PL_reentrant_buffer->_grent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
	40	if (PL_reentrant_buffer->_pwent_size == -1)
	41	PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	42	# else
10bc17b6 JH	43	# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
f7937171	44	PL_reentrant_buffer->_grent_size = SIABUFSIZ;
10bc17b6 JH	45	# else
10bc17b6 JH	46	# ifdef __sgi
f7937171	47	PL_reentrant_buffer->_grent_size = BUFSIZ;
10bc17b6	48	# else
f7937171	49	PL_reentrant_buffer->_grent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	50	# endif
	51	# endif
	52	# endif
	53	#endif /* HAS_GETGRNAM_R */
	54	#ifdef HAS_GETHOSTBYNAME_R
	55	#if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	56	PL_reentrant_buffer->_hostent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	57	#endif
	58	#endif /* HAS_GETHOSTBYNAME_R */
	59	#ifdef HAS_GETLOGIN_R
8695fa85	60	PL_reentrant_buffer->_getlogin_size = REENTRANTSMALLSIZE;
10bc17b6 JH	61	#endif /* HAS_GETLOGIN_R */
	62	#ifdef HAS_GETNETBYNAME_R
	63	#if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	64	PL_reentrant_buffer->_netent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	65	#endif
	66	#endif /* HAS_GETNETBYNAME_R */
	67	#ifdef HAS_GETPROTOBYNAME_R
	68	#if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	69	PL_reentrant_buffer->_protoent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	70	#endif
	71	#endif /* HAS_GETPROTOBYNAME_R */
	72	#ifdef HAS_GETPWNAM_R
	73	# if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
f7937171 JH	74	PL_reentrant_buffer->_pwent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
	75	if (PL_reentrant_buffer->_pwent_size == -1)
	76	PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	77	# else
10bc17b6 JH	78	# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
f7937171	79	PL_reentrant_buffer->_pwent_size = SIABUFSIZ;
10bc17b6 JH	80	# else
10bc17b6 JH	81	# ifdef __sgi
f7937171	82	PL_reentrant_buffer->_pwent_size = BUFSIZ;
10bc17b6	83	# else
f7937171	84	PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	85	# endif
	86	# endif
	87	# endif
	88	#endif /* HAS_GETPWNAM_R */
	89	#ifdef HAS_GETSERVBYNAME_R
	90	#if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
f7937171	91	PL_reentrant_buffer->_servent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	92	#endif
	93	#endif /* HAS_GETSERVBYNAME_R */
	94	#ifdef HAS_GETSPNAM_R
f7937171 JH	95	# if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
	96	PL_reentrant_buffer->_spent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
	97	if (PL_reentrant_buffer->_pwent_size == -1)
	98	PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
	99	# else
	100	# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
	101	PL_reentrant_buffer->_spent_size = SIABUFSIZ;
	102	# else
	103	# ifdef __sgi
	104	PL_reentrant_buffer->_spent_size = BUFSIZ;
	105	# else
	106	PL_reentrant_buffer->_spent_size = REENTRANTUSUALSIZE;
	107	# endif
	108	# endif
	109	# endif
10bc17b6 JH	110	#endif /* HAS_GETSPNAM_R */
	111	#ifdef HAS_GMTIME_R
	112	#endif /* HAS_GMTIME_R */
	113	#ifdef HAS_LOCALTIME_R
	114	#endif /* HAS_LOCALTIME_R */
	115	#ifdef HAS_RANDOM_R
	116	#endif /* HAS_RANDOM_R */
	117	#ifdef HAS_READDIR_R
	118	/* This is the size Solaris recommends.
	119	* (though we go static, should use pathconf() instead) */
	120	PL_reentrant_buffer->_readdir_size = sizeof(struct dirent) + MAXPATHLEN + 1;
	121	#endif /* HAS_READDIR_R */
	122	#ifdef HAS_READDIR64_R
	123	/* This is the size Solaris recommends.
	124	* (though we go static, should use pathconf() instead) */
	125	PL_reentrant_buffer->_readdir64_size = sizeof(struct dirent64) + MAXPATHLEN + 1;
	126	#endif /* HAS_READDIR64_R */
	127	#ifdef HAS_SETLOCALE_R
8695fa85	128	PL_reentrant_buffer->_setlocale_size = REENTRANTSMALLSIZE;
10bc17b6 JH	129	#endif /* HAS_SETLOCALE_R */
10bc17b6 JH	130	#ifdef HAS_STRERROR_R
8695fa85	131	PL_reentrant_buffer->_strerror_size = REENTRANTSMALLSIZE;
10bc17b6 JH	132	#endif /* HAS_STRERROR_R */
10bc17b6 JH	133	#ifdef HAS_TTYNAME_R
8695fa85	134	PL_reentrant_buffer->_ttyname_size = REENTRANTSMALLSIZE;
10bc17b6 JH	135	#endif /* HAS_TTYNAME_R */
	136
	137	#endif /* USE_REENTRANT_API */
	138	}
	139
	140	void
	141	Perl_reentrant_init(pTHX) {
	142	#ifdef USE_REENTRANT_API
	143	New(31337, PL_reentrant_buffer, 1, REENTR);
	144	Perl_reentrant_size(aTHX);
	145	#ifdef HAS_ASCTIME_R
	146	New(31338, PL_reentrant_buffer->_asctime_buffer, PL_reentrant_buffer->_asctime_size, char);
	147	#endif /* HAS_ASCTIME_R */
	148	#ifdef HAS_CRYPT_R
	149	#ifdef __GLIBC__
	150	PL_reentrant_buffer->_crypt_struct.initialized = 0;
	151	#endif
	152	#endif /* HAS_CRYPT_R */
	153	#ifdef HAS_CTIME_R
	154	New(31338, PL_reentrant_buffer->_ctime_buffer, PL_reentrant_buffer->_ctime_size, char);
	155	#endif /* HAS_CTIME_R */
	156	#ifdef HAS_DRAND48_R
	157	#endif /* HAS_DRAND48_R */
	158	#ifdef HAS_GETGRNAM_R
f7937171 JH	159	# ifdef USE_GRENT_FPTR
f7937171 JH	160	PL_reentrant_buffer->_grent_fptr = NULL;
10bc17b6	161	# endif
f7937171	162	New(31338, PL_reentrant_buffer->_grent_buffer, PL_reentrant_buffer->_grent_size, char);
10bc17b6 JH	163	#endif /* HAS_GETGRNAM_R */
	164	#ifdef HAS_GETHOSTBYNAME_R
	165	#if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	166	New(31338, PL_reentrant_buffer->_hostent_buffer, PL_reentrant_buffer->_hostent_size, char);
10bc17b6 JH	167	#endif
	168	#endif /* HAS_GETHOSTBYNAME_R */
	169	#ifdef HAS_GETLOGIN_R
	170	New(31338, PL_reentrant_buffer->_getlogin_buffer, PL_reentrant_buffer->_getlogin_size, char);
	171	#endif /* HAS_GETLOGIN_R */
	172	#ifdef HAS_GETNETBYNAME_R
	173	#if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	174	New(31338, PL_reentrant_buffer->_netent_buffer, PL_reentrant_buffer->_netent_size, char);
10bc17b6 JH	175	#endif
	176	#endif /* HAS_GETNETBYNAME_R */
	177	#ifdef HAS_GETPROTOBYNAME_R
	178	#if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	179	New(31338, PL_reentrant_buffer->_protoent_buffer, PL_reentrant_buffer->_protoent_size, char);
10bc17b6 JH	180	#endif
	181	#endif /* HAS_GETPROTOBYNAME_R */
	182	#ifdef HAS_GETPWNAM_R
f7937171 JH	183	# ifdef USE_PWENT_FPTR
f7937171 JH	184	PL_reentrant_buffer->_pwent_fptr = NULL;
10bc17b6	185	# endif
f7937171	186	New(31338, PL_reentrant_buffer->_pwent_buffer, PL_reentrant_buffer->_pwent_size, char);
10bc17b6 JH	187	#endif /* HAS_GETPWNAM_R */
	188	#ifdef HAS_GETSERVBYNAME_R
	189	#if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
f7937171	190	New(31338, PL_reentrant_buffer->_servent_buffer, PL_reentrant_buffer->_servent_size, char);
10bc17b6 JH	191	#endif
	192	#endif /* HAS_GETSERVBYNAME_R */
	193	#ifdef HAS_GETSPNAM_R
f7937171 JH	194	# ifdef USE_SPENT_FPTR
	195	PL_reentrant_buffer->_spent_fptr = NULL;
	196	# endif
	197	New(31338, PL_reentrant_buffer->_spent_buffer, PL_reentrant_buffer->_spent_size, char);
10bc17b6 JH	198	#endif /* HAS_GETSPNAM_R */
	199	#ifdef HAS_GMTIME_R
	200	#endif /* HAS_GMTIME_R */
	201	#ifdef HAS_LOCALTIME_R
	202	#endif /* HAS_LOCALTIME_R */
	203	#ifdef HAS_RANDOM_R
	204	#endif /* HAS_RANDOM_R */
	205	#ifdef HAS_READDIR_R
	206	PL_reentrant_buffer->_readdir_struct = (struct dirent*)safemalloc(PL_reentrant_buffer->_readdir_size);
	207	#endif /* HAS_READDIR_R */
	208	#ifdef HAS_READDIR64_R
	209	PL_reentrant_buffer->_readdir64_struct = (struct dirent64*)safemalloc(PL_reentrant_buffer->_readdir64_size);
	210	#endif /* HAS_READDIR64_R */
	211	#ifdef HAS_SETLOCALE_R
	212	New(31338, PL_reentrant_buffer->_setlocale_buffer, PL_reentrant_buffer->_setlocale_size, char);
	213	#endif /* HAS_SETLOCALE_R */
	214	#ifdef HAS_STRERROR_R
	215	New(31338, PL_reentrant_buffer->_strerror_buffer, PL_reentrant_buffer->_strerror_size, char);
	216	#endif /* HAS_STRERROR_R */
	217	#ifdef HAS_TTYNAME_R
	218	New(31338, PL_reentrant_buffer->_ttyname_buffer, PL_reentrant_buffer->_ttyname_size, char);
	219	#endif /* HAS_TTYNAME_R */
	220
	221	#endif /* USE_REENTRANT_API */
	222	}
	223
	224	void
	225	Perl_reentrant_free(pTHX) {
	226	#ifdef USE_REENTRANT_API
	227	#ifdef HAS_ASCTIME_R
	228	Safefree(PL_reentrant_buffer->_asctime_buffer);
	229	#endif /* HAS_ASCTIME_R */
	230	#ifdef HAS_CRYPT_R
	231	#endif /* HAS_CRYPT_R */
	232	#ifdef HAS_CTIME_R
	233	Safefree(PL_reentrant_buffer->_ctime_buffer);
	234	#endif /* HAS_CTIME_R */
	235	#ifdef HAS_DRAND48_R
	236	#endif /* HAS_DRAND48_R */
	237	#ifdef HAS_GETGRNAM_R
f7937171	238	Safefree(PL_reentrant_buffer->_grent_buffer);
10bc17b6 JH	239	#endif /* HAS_GETGRNAM_R */
	240	#ifdef HAS_GETHOSTBYNAME_R
	241	#if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	242	Safefree(PL_reentrant_buffer->_hostent_buffer);
10bc17b6 JH	243	#endif
	244	#endif /* HAS_GETHOSTBYNAME_R */
	245	#ifdef HAS_GETLOGIN_R
	246	Safefree(PL_reentrant_buffer->_getlogin_buffer);
	247	#endif /* HAS_GETLOGIN_R */
	248	#ifdef HAS_GETNETBYNAME_R
	249	#if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	250	Safefree(PL_reentrant_buffer->_netent_buffer);
10bc17b6 JH	251	#endif
	252	#endif /* HAS_GETNETBYNAME_R */
	253	#ifdef HAS_GETPROTOBYNAME_R
	254	#if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	255	Safefree(PL_reentrant_buffer->_protoent_buffer);
10bc17b6 JH	256	#endif
	257	#endif /* HAS_GETPROTOBYNAME_R */
	258	#ifdef HAS_GETPWNAM_R
f7937171	259	Safefree(PL_reentrant_buffer->_pwent_buffer);
10bc17b6 JH	260	#endif /* HAS_GETPWNAM_R */
	261	#ifdef HAS_GETSERVBYNAME_R
	262	#if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
f7937171	263	Safefree(PL_reentrant_buffer->_servent_buffer);
10bc17b6 JH	264	#endif
	265	#endif /* HAS_GETSERVBYNAME_R */
	266	#ifdef HAS_GETSPNAM_R
f7937171	267	Safefree(PL_reentrant_buffer->_spent_buffer);
10bc17b6 JH	268	#endif /* HAS_GETSPNAM_R */
	269	#ifdef HAS_GMTIME_R
	270	#endif /* HAS_GMTIME_R */
	271	#ifdef HAS_LOCALTIME_R
	272	#endif /* HAS_LOCALTIME_R */
	273	#ifdef HAS_RANDOM_R
	274	#endif /* HAS_RANDOM_R */
	275	#ifdef HAS_READDIR_R
	276	Safefree(PL_reentrant_buffer->_readdir_struct);
	277	#endif /* HAS_READDIR_R */
	278	#ifdef HAS_READDIR64_R
	279	Safefree(PL_reentrant_buffer->_readdir64_struct);
	280	#endif /* HAS_READDIR64_R */
	281	#ifdef HAS_SETLOCALE_R
	282	Safefree(PL_reentrant_buffer->_setlocale_buffer);
	283	#endif /* HAS_SETLOCALE_R */
	284	#ifdef HAS_STRERROR_R
	285	Safefree(PL_reentrant_buffer->_strerror_buffer);
	286	#endif /* HAS_STRERROR_R */
	287	#ifdef HAS_TTYNAME_R
	288	Safefree(PL_reentrant_buffer->_ttyname_buffer);
	289	#endif /* HAS_TTYNAME_R */
	290
	291	Safefree(PL_reentrant_buffer);
	292	#endif /* USE_REENTRANT_API */
	293	}
	294
edd309b7 JH	295	void*
	296	Perl_reentrant_retry(const char *f, ...)
	297	{
	298	dTHX;
	299	void *retptr = NULL;
	300	#ifdef USE_REENTRANT_API
f7937171	301	# if defined(USE_HOSTENT_BUFFER) \|\| defined(USE_GRENT_BUFFER) \|\| defined(USE_NETENT_BUFFER) \|\| defined(USE_PWENT_BUFFER) \|\| defined(USE_PROTOENT_BUFFER) \|\| defined(USE_SRVENT_BUFFER)
e3410746 SR	302	void *p0;
e3410746 SR	303	# endif
f7937171	304	# if defined(USE_SERVENT_BUFFER)
e3410746 SR	305	void *p1;
e3410746 SR	306	# endif
f7937171	307	# if defined(USE_HOSTENT_BUFFER)
edd309b7	308	size_t asize;
e3410746	309	# endif
f7937171	310	# if defined(USE_HOSTENT_BUFFER) \|\| defined(USE_NETENT_BUFFER) \|\| defined(USE_PROTOENT_BUFFER) \|\| defined(USE_SERVENT_BUFFER)
edd309b7	311	int anint;
e3410746	312	# endif
edd309b7 JH	313	va_list ap;
	314
	315	va_start(ap, f);
	316
	317	#define REENTRANTHALFMAXSIZE 32768 /* The maximum may end up twice this. */
	318
	319	switch (PL_op->op_type) {
f7937171	320	#ifdef USE_HOSTENT_BUFFER
edd309b7 JH	321	case OP_GHBYADDR:
	322	case OP_GHBYNAME:
	323	case OP_GHOSTENT:
	324	{
f7937171 JH	325	if (PL_reentrant_buffer->_hostent_size <= REENTRANTHALFMAXSIZE) {
	326	PL_reentrant_buffer->_hostent_size *= 2;
	327	Renew(PL_reentrant_buffer->_hostent_buffer,
	328	PL_reentrant_buffer->_hostent_size, char);
edd309b7 JH	329	switch (PL_op->op_type) {
	330	case OP_GHBYADDR:
	331	p0 = va_arg(ap, void *);
	332	asize = va_arg(ap, size_t);
	333	anint = va_arg(ap, int);
	334	retptr = gethostbyaddr(p0, asize, anint); break;
	335	case OP_GHBYNAME:
	336	p0 = va_arg(ap, void *);
	337	retptr = gethostbyname(p0); break;
	338	case OP_GHOSTENT:
	339	retptr = gethostent(); break;
	340	default:
	341	break;
	342	}
	343	}
	344	}
	345	break;
	346	#endif
f7937171	347	#ifdef USE_GRENT_BUFFER
edd309b7 JH	348	case OP_GGRNAM:
	349	case OP_GGRGID:
	350	case OP_GGRENT:
	351	{
f7937171	352	if (PL_reentrant_buffer->_grent_size <= REENTRANTHALFMAXSIZE) {
edd309b7	353	Gid_t gid;
f7937171 JH	354	PL_reentrant_buffer->_grent_size *= 2;
	355	Renew(PL_reentrant_buffer->_grent_buffer,
	356	PL_reentrant_buffer->_grent_size, char);
edd309b7 JH	357	switch (PL_op->op_type) {
	358	case OP_GGRNAM:
	359	p0 = va_arg(ap, void *);
	360	retptr = getgrnam(p0); break;
	361	case OP_GGRGID:
	362	gid = va_arg(ap, Gid_t);
	363	retptr = getgrgid(gid); break;
	364	case OP_GGRENT:
	365	retptr = getgrent(); break;
	366	default:
	367	break;
	368	}
	369	}
	370	}
	371	break;
	372	#endif
f7937171	373	#ifdef USE_NETENT_BUFFER
edd309b7 JH	374	case OP_GNBYADDR:
	375	case OP_GNBYNAME:
	376	case OP_GNETENT:
	377	{
f7937171	378	if (PL_reentrant_buffer->_netent_size <= REENTRANTHALFMAXSIZE) {
edd309b7	379	Netdb_net_t net;
f7937171 JH	380	PL_reentrant_buffer->_netent_size *= 2;
	381	Renew(PL_reentrant_buffer->_netent_buffer,
	382	PL_reentrant_buffer->_netent_size, char);
edd309b7 JH	383	switch (PL_op->op_type) {
	384	case OP_GNBYADDR:
	385	net = va_arg(ap, Netdb_net_t);
	386	anint = va_arg(ap, int);
	387	retptr = getnetbyaddr(net, anint); break;
	388	case OP_GNBYNAME:
	389	p0 = va_arg(ap, void *);
	390	retptr = getnetbyname(p0); break;
	391	case OP_GNETENT:
	392	retptr = getnetent(); break;
	393	default:
	394	break;
	395	}
	396	}
	397	}
	398	break;
	399	#endif
f7937171	400	#ifdef USE_PWENT_BUFFER
edd309b7 JH	401	case OP_GPWNAM:
	402	case OP_GPWUID:
	403	case OP_GPWENT:
	404	{
f7937171	405	if (PL_reentrant_buffer->_pwent_size <= REENTRANTHALFMAXSIZE) {
edd309b7	406	Uid_t uid;
f7937171 JH	407	PL_reentrant_buffer->_pwent_size *= 2;
	408	Renew(PL_reentrant_buffer->_pwent_buffer,
	409	PL_reentrant_buffer->_pwent_size, char);
edd309b7 JH	410	switch (PL_op->op_type) {
	411	case OP_GPWNAM:
	412	p0 = va_arg(ap, void *);
	413	retptr = getpwnam(p0); break;
	414	case OP_GPWUID:
	415	uid = va_arg(ap, Uid_t);
	416	retptr = getpwuid(uid); break;
	417	case OP_GPWENT:
	418	retptr = getpwent(); break;
	419	default:
	420	break;
	421	}
	422	}
	423	}
	424	break;
	425	#endif
f7937171	426	#ifdef USE_PROTOENT_BUFFER
edd309b7 JH	427	case OP_GPBYNAME:
	428	case OP_GPBYNUMBER:
	429	case OP_GPROTOENT:
	430	{
f7937171 JH	431	if (PL_reentrant_buffer->_protoent_size <= REENTRANTHALFMAXSIZE) {
	432	PL_reentrant_buffer->_protoent_size *= 2;
	433	Renew(PL_reentrant_buffer->_protoent_buffer,
	434	PL_reentrant_buffer->_protoent_size, char);
edd309b7 JH	435	switch (PL_op->op_type) {
	436	case OP_GPBYNAME:
	437	p0 = va_arg(ap, void *);
	438	retptr = getprotobyname(p0); break;
	439	case OP_GPBYNUMBER:
	440	anint = va_arg(ap, int);
	441	retptr = getprotobynumber(anint); break;
	442	case OP_GPROTOENT:
	443	retptr = getprotoent(); break;
	444	default:
	445	break;
	446	}
	447	}
	448	}
	449	break;
	450	#endif
f7937171	451	#ifdef USE_SERVENT_BUFFER
edd309b7 JH	452	case OP_GSBYNAME:
	453	case OP_GSBYPORT:
	454	case OP_GSERVENT:
	455	{
f7937171 JH	456	if (PL_reentrant_buffer->_servent_size <= REENTRANTHALFMAXSIZE) {
	457	PL_reentrant_buffer->_servent_size *= 2;
	458	Renew(PL_reentrant_buffer->_servent_buffer,
	459	PL_reentrant_buffer->_servent_size, char);
edd309b7 JH	460	switch (PL_op->op_type) {
	461	case OP_GSBYNAME:
	462	p0 = va_arg(ap, void *);
	463	p1 = va_arg(ap, void *);
	464	retptr = getservbyname(p0, p1); break;
	465	case OP_GSBYPORT:
	466	anint = va_arg(ap, int);
	467	p0 = va_arg(ap, void *);
	468	retptr = getservbyport(anint, p0); break;
	469	case OP_GSERVENT:
	470	retptr = getservent(); break;
	471	default:
	472	break;
	473	}
	474	}
	475	}
	476	break;
	477	#endif
	478	default:
	479	/* Not known how to retry, so just fail. */
	480	break;
	481	}
	482
	483	va_end(ap);
	484	#endif
	485	return retptr;
	486	}
	487