[p5sagit/p5-mst-13.2.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;
	/* work around glibc-2.2.5 bug */
	PL_reentrant_buffer->_crypt_struct.current_saltbits = 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	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	25	#define REENTRANTSMALLSIZE 256 /* Make something up. */
8695fa85	26	#define REENTRANTUSUALSIZE 4096 /* Make something up. */
10bc17b6	27	#ifdef HAS_ASCTIME_R
8695fa85	28	PL_reentrant_buffer->_asctime_size = REENTRANTSMALLSIZE;
10bc17b6	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	34	#endif /* HAS_CTIME_R */
	35	#ifdef HAS_DRAND48_R
	36	#endif /* HAS_DRAND48_R */
	37	#ifdef HAS_GETGRNAM_R
f7937171	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	42	# else
10bc17b6	43	# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
f7937171	44	PL_reentrant_buffer->_grent_size = SIABUFSIZ;
10bc17b6	45	# else
10bc17b6	46	# ifdef __sgi
f7937171	47	PL_reentrant_buffer->_grent_size = BUFSIZ;
10bc17b6	48	# else
f7937171	49	PL_reentrant_buffer->_grent_size = REENTRANTUSUALSIZE;
10bc17b6	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	57	#endif
	58	#endif /* HAS_GETHOSTBYNAME_R */
	59	#ifdef HAS_GETLOGIN_R
8695fa85	60	PL_reentrant_buffer->_getlogin_size = REENTRANTSMALLSIZE;
10bc17b6	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	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	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	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	77	# else
10bc17b6	78	# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
f7937171	79	PL_reentrant_buffer->_pwent_size = SIABUFSIZ;
10bc17b6	80	# else
10bc17b6	81	# ifdef __sgi
f7937171	82	PL_reentrant_buffer->_pwent_size = BUFSIZ;
10bc17b6	83	# else
f7937171	84	PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
10bc17b6	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	92	#endif
	93	#endif /* HAS_GETSERVBYNAME_R */
	94	#ifdef HAS_GETSPNAM_R
f7937171	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	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	129	#endif /* HAS_SETLOCALE_R */
10bc17b6	130	#ifdef HAS_STRERROR_R
8695fa85	131	PL_reentrant_buffer->_strerror_size = REENTRANTSMALLSIZE;
10bc17b6	132	#endif /* HAS_STRERROR_R */
10bc17b6	133	#ifdef HAS_TTYNAME_R
8695fa85	134	PL_reentrant_buffer->_ttyname_size = REENTRANTSMALLSIZE;
10bc17b6	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;
d5abad05	151	/* work around glibc-2.2.5 bug */
d5abad05	152	PL_reentrant_buffer->_crypt_struct.current_saltbits = 0;
10bc17b6	153	#endif
	154	#endif /* HAS_CRYPT_R */
	155	#ifdef HAS_CTIME_R
	156	New(31338, PL_reentrant_buffer->_ctime_buffer, PL_reentrant_buffer->_ctime_size, char);
	157	#endif /* HAS_CTIME_R */
	158	#ifdef HAS_DRAND48_R
	159	#endif /* HAS_DRAND48_R */
	160	#ifdef HAS_GETGRNAM_R
f7937171	161	# ifdef USE_GRENT_FPTR
f7937171	162	PL_reentrant_buffer->_grent_fptr = NULL;
10bc17b6	163	# endif
f7937171	164	New(31338, PL_reentrant_buffer->_grent_buffer, PL_reentrant_buffer->_grent_size, char);
10bc17b6	165	#endif /* HAS_GETGRNAM_R */
	166	#ifdef HAS_GETHOSTBYNAME_R
	167	#if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	168	New(31338, PL_reentrant_buffer->_hostent_buffer, PL_reentrant_buffer->_hostent_size, char);
10bc17b6	169	#endif
	170	#endif /* HAS_GETHOSTBYNAME_R */
	171	#ifdef HAS_GETLOGIN_R
	172	New(31338, PL_reentrant_buffer->_getlogin_buffer, PL_reentrant_buffer->_getlogin_size, char);
	173	#endif /* HAS_GETLOGIN_R */
	174	#ifdef HAS_GETNETBYNAME_R
	175	#if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	176	New(31338, PL_reentrant_buffer->_netent_buffer, PL_reentrant_buffer->_netent_size, char);
10bc17b6	177	#endif
	178	#endif /* HAS_GETNETBYNAME_R */
	179	#ifdef HAS_GETPROTOBYNAME_R
	180	#if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	181	New(31338, PL_reentrant_buffer->_protoent_buffer, PL_reentrant_buffer->_protoent_size, char);
10bc17b6	182	#endif
	183	#endif /* HAS_GETPROTOBYNAME_R */
	184	#ifdef HAS_GETPWNAM_R
f7937171	185	# ifdef USE_PWENT_FPTR
f7937171	186	PL_reentrant_buffer->_pwent_fptr = NULL;
10bc17b6	187	# endif
f7937171	188	New(31338, PL_reentrant_buffer->_pwent_buffer, PL_reentrant_buffer->_pwent_size, char);
10bc17b6	189	#endif /* HAS_GETPWNAM_R */
	190	#ifdef HAS_GETSERVBYNAME_R
	191	#if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
f7937171	192	New(31338, PL_reentrant_buffer->_servent_buffer, PL_reentrant_buffer->_servent_size, char);
10bc17b6	193	#endif
	194	#endif /* HAS_GETSERVBYNAME_R */
	195	#ifdef HAS_GETSPNAM_R
f7937171	196	# ifdef USE_SPENT_FPTR
	197	PL_reentrant_buffer->_spent_fptr = NULL;
	198	# endif
	199	New(31338, PL_reentrant_buffer->_spent_buffer, PL_reentrant_buffer->_spent_size, char);
10bc17b6	200	#endif /* HAS_GETSPNAM_R */
	201	#ifdef HAS_GMTIME_R
	202	#endif /* HAS_GMTIME_R */
	203	#ifdef HAS_LOCALTIME_R
	204	#endif /* HAS_LOCALTIME_R */
	205	#ifdef HAS_RANDOM_R
	206	#endif /* HAS_RANDOM_R */
	207	#ifdef HAS_READDIR_R
	208	PL_reentrant_buffer->_readdir_struct = (struct dirent*)safemalloc(PL_reentrant_buffer->_readdir_size);
	209	#endif /* HAS_READDIR_R */
	210	#ifdef HAS_READDIR64_R
	211	PL_reentrant_buffer->_readdir64_struct = (struct dirent64*)safemalloc(PL_reentrant_buffer->_readdir64_size);
	212	#endif /* HAS_READDIR64_R */
	213	#ifdef HAS_SETLOCALE_R
	214	New(31338, PL_reentrant_buffer->_setlocale_buffer, PL_reentrant_buffer->_setlocale_size, char);
	215	#endif /* HAS_SETLOCALE_R */
	216	#ifdef HAS_STRERROR_R
	217	New(31338, PL_reentrant_buffer->_strerror_buffer, PL_reentrant_buffer->_strerror_size, char);
	218	#endif /* HAS_STRERROR_R */
	219	#ifdef HAS_TTYNAME_R
	220	New(31338, PL_reentrant_buffer->_ttyname_buffer, PL_reentrant_buffer->_ttyname_size, char);
	221	#endif /* HAS_TTYNAME_R */
	222
	223	#endif /* USE_REENTRANT_API */
	224	}
	225
	226	void
	227	Perl_reentrant_free(pTHX) {
	228	#ifdef USE_REENTRANT_API
	229	#ifdef HAS_ASCTIME_R
	230	Safefree(PL_reentrant_buffer->_asctime_buffer);
	231	#endif /* HAS_ASCTIME_R */
	232	#ifdef HAS_CRYPT_R
	233	#endif /* HAS_CRYPT_R */
	234	#ifdef HAS_CTIME_R
	235	Safefree(PL_reentrant_buffer->_ctime_buffer);
	236	#endif /* HAS_CTIME_R */
	237	#ifdef HAS_DRAND48_R
	238	#endif /* HAS_DRAND48_R */
	239	#ifdef HAS_GETGRNAM_R
f7937171	240	Safefree(PL_reentrant_buffer->_grent_buffer);
10bc17b6	241	#endif /* HAS_GETGRNAM_R */
	242	#ifdef HAS_GETHOSTBYNAME_R
	243	#if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	244	Safefree(PL_reentrant_buffer->_hostent_buffer);
10bc17b6	245	#endif
	246	#endif /* HAS_GETHOSTBYNAME_R */
	247	#ifdef HAS_GETLOGIN_R
	248	Safefree(PL_reentrant_buffer->_getlogin_buffer);
	249	#endif /* HAS_GETLOGIN_R */
	250	#ifdef HAS_GETNETBYNAME_R
	251	#if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	252	Safefree(PL_reentrant_buffer->_netent_buffer);
10bc17b6	253	#endif
	254	#endif /* HAS_GETNETBYNAME_R */
	255	#ifdef HAS_GETPROTOBYNAME_R
	256	#if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	257	Safefree(PL_reentrant_buffer->_protoent_buffer);
10bc17b6	258	#endif
	259	#endif /* HAS_GETPROTOBYNAME_R */
	260	#ifdef HAS_GETPWNAM_R
f7937171	261	Safefree(PL_reentrant_buffer->_pwent_buffer);
10bc17b6	262	#endif /* HAS_GETPWNAM_R */
	263	#ifdef HAS_GETSERVBYNAME_R
	264	#if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
f7937171	265	Safefree(PL_reentrant_buffer->_servent_buffer);
10bc17b6	266	#endif
	267	#endif /* HAS_GETSERVBYNAME_R */
	268	#ifdef HAS_GETSPNAM_R
f7937171	269	Safefree(PL_reentrant_buffer->_spent_buffer);
10bc17b6	270	#endif /* HAS_GETSPNAM_R */
	271	#ifdef HAS_GMTIME_R
	272	#endif /* HAS_GMTIME_R */
	273	#ifdef HAS_LOCALTIME_R
	274	#endif /* HAS_LOCALTIME_R */
	275	#ifdef HAS_RANDOM_R
	276	#endif /* HAS_RANDOM_R */
	277	#ifdef HAS_READDIR_R
	278	Safefree(PL_reentrant_buffer->_readdir_struct);
	279	#endif /* HAS_READDIR_R */
	280	#ifdef HAS_READDIR64_R
	281	Safefree(PL_reentrant_buffer->_readdir64_struct);
	282	#endif /* HAS_READDIR64_R */
	283	#ifdef HAS_SETLOCALE_R
	284	Safefree(PL_reentrant_buffer->_setlocale_buffer);
	285	#endif /* HAS_SETLOCALE_R */
	286	#ifdef HAS_STRERROR_R
	287	Safefree(PL_reentrant_buffer->_strerror_buffer);
	288	#endif /* HAS_STRERROR_R */
	289	#ifdef HAS_TTYNAME_R
	290	Safefree(PL_reentrant_buffer->_ttyname_buffer);
	291	#endif /* HAS_TTYNAME_R */
	292
	293	Safefree(PL_reentrant_buffer);
	294	#endif /* USE_REENTRANT_API */
	295	}
	296
edd309b7	297	void*
	298	Perl_reentrant_retry(const char *f, ...)
	299	{
	300	dTHX;
	301	void *retptr = NULL;
	302	#ifdef USE_REENTRANT_API
f7937171	303	# 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	304	void *p0;
e3410746	305	# endif
f7937171	306	# if defined(USE_SERVENT_BUFFER)
e3410746	307	void *p1;
e3410746	308	# endif
f7937171	309	# if defined(USE_HOSTENT_BUFFER)
edd309b7	310	size_t asize;
e3410746	311	# endif
f7937171	312	# if defined(USE_HOSTENT_BUFFER) \|\| defined(USE_NETENT_BUFFER) \|\| defined(USE_PROTOENT_BUFFER) \|\| defined(USE_SERVENT_BUFFER)
edd309b7	313	int anint;
e3410746	314	# endif
edd309b7	315	va_list ap;
	316
	317	va_start(ap, f);
	318
	319	#define REENTRANTHALFMAXSIZE 32768 /* The maximum may end up twice this. */
	320
	321	switch (PL_op->op_type) {
f7937171	322	#ifdef USE_HOSTENT_BUFFER
edd309b7	323	case OP_GHBYADDR:
	324	case OP_GHBYNAME:
	325	case OP_GHOSTENT:
	326	{
f7937171	327	if (PL_reentrant_buffer->_hostent_size <= REENTRANTHALFMAXSIZE) {
	328	PL_reentrant_buffer->_hostent_size *= 2;
	329	Renew(PL_reentrant_buffer->_hostent_buffer,
	330	PL_reentrant_buffer->_hostent_size, char);
edd309b7	331	switch (PL_op->op_type) {
	332	case OP_GHBYADDR:
	333	p0 = va_arg(ap, void *);
	334	asize = va_arg(ap, size_t);
	335	anint = va_arg(ap, int);
	336	retptr = gethostbyaddr(p0, asize, anint); break;
	337	case OP_GHBYNAME:
	338	p0 = va_arg(ap, void *);
	339	retptr = gethostbyname(p0); break;
	340	case OP_GHOSTENT:
	341	retptr = gethostent(); break;
	342	default:
	343	break;
	344	}
	345	}
	346	}
	347	break;
	348	#endif
f7937171	349	#ifdef USE_GRENT_BUFFER
edd309b7	350	case OP_GGRNAM:
	351	case OP_GGRGID:
	352	case OP_GGRENT:
	353	{
f7937171	354	if (PL_reentrant_buffer->_grent_size <= REENTRANTHALFMAXSIZE) {
edd309b7	355	Gid_t gid;
f7937171	356	PL_reentrant_buffer->_grent_size *= 2;
	357	Renew(PL_reentrant_buffer->_grent_buffer,
	358	PL_reentrant_buffer->_grent_size, char);
edd309b7	359	switch (PL_op->op_type) {
	360	case OP_GGRNAM:
	361	p0 = va_arg(ap, void *);
	362	retptr = getgrnam(p0); break;
	363	case OP_GGRGID:
	364	gid = va_arg(ap, Gid_t);
	365	retptr = getgrgid(gid); break;
	366	case OP_GGRENT:
	367	retptr = getgrent(); break;
	368	default:
	369	break;
	370	}
	371	}
	372	}
	373	break;
	374	#endif
f7937171	375	#ifdef USE_NETENT_BUFFER
edd309b7	376	case OP_GNBYADDR:
	377	case OP_GNBYNAME:
	378	case OP_GNETENT:
	379	{
f7937171	380	if (PL_reentrant_buffer->_netent_size <= REENTRANTHALFMAXSIZE) {
edd309b7	381	Netdb_net_t net;
f7937171	382	PL_reentrant_buffer->_netent_size *= 2;
	383	Renew(PL_reentrant_buffer->_netent_buffer,
	384	PL_reentrant_buffer->_netent_size, char);
edd309b7	385	switch (PL_op->op_type) {
	386	case OP_GNBYADDR:
	387	net = va_arg(ap, Netdb_net_t);
	388	anint = va_arg(ap, int);
	389	retptr = getnetbyaddr(net, anint); break;
	390	case OP_GNBYNAME:
	391	p0 = va_arg(ap, void *);
	392	retptr = getnetbyname(p0); break;
	393	case OP_GNETENT:
	394	retptr = getnetent(); break;
	395	default:
	396	break;
	397	}
	398	}
	399	}
	400	break;
	401	#endif
f7937171	402	#ifdef USE_PWENT_BUFFER
edd309b7	403	case OP_GPWNAM:
	404	case OP_GPWUID:
	405	case OP_GPWENT:
	406	{
f7937171	407	if (PL_reentrant_buffer->_pwent_size <= REENTRANTHALFMAXSIZE) {
edd309b7	408	Uid_t uid;
f7937171	409	PL_reentrant_buffer->_pwent_size *= 2;
	410	Renew(PL_reentrant_buffer->_pwent_buffer,
	411	PL_reentrant_buffer->_pwent_size, char);
edd309b7	412	switch (PL_op->op_type) {
	413	case OP_GPWNAM:
	414	p0 = va_arg(ap, void *);
	415	retptr = getpwnam(p0); break;
	416	case OP_GPWUID:
	417	uid = va_arg(ap, Uid_t);
	418	retptr = getpwuid(uid); break;
	419	case OP_GPWENT:
	420	retptr = getpwent(); break;
	421	default:
	422	break;
	423	}
	424	}
	425	}
	426	break;
	427	#endif
f7937171	428	#ifdef USE_PROTOENT_BUFFER
edd309b7	429	case OP_GPBYNAME:
	430	case OP_GPBYNUMBER:
	431	case OP_GPROTOENT:
	432	{
f7937171	433	if (PL_reentrant_buffer->_protoent_size <= REENTRANTHALFMAXSIZE) {
	434	PL_reentrant_buffer->_protoent_size *= 2;
	435	Renew(PL_reentrant_buffer->_protoent_buffer,
	436	PL_reentrant_buffer->_protoent_size, char);
edd309b7	437	switch (PL_op->op_type) {
	438	case OP_GPBYNAME:
	439	p0 = va_arg(ap, void *);
	440	retptr = getprotobyname(p0); break;
	441	case OP_GPBYNUMBER:
	442	anint = va_arg(ap, int);
	443	retptr = getprotobynumber(anint); break;
	444	case OP_GPROTOENT:
	445	retptr = getprotoent(); break;
	446	default:
	447	break;
	448	}
	449	}
	450	}
	451	break;
	452	#endif
f7937171	453	#ifdef USE_SERVENT_BUFFER
edd309b7	454	case OP_GSBYNAME:
	455	case OP_GSBYPORT:
	456	case OP_GSERVENT:
	457	{
f7937171	458	if (PL_reentrant_buffer->_servent_size <= REENTRANTHALFMAXSIZE) {
	459	PL_reentrant_buffer->_servent_size *= 2;
	460	Renew(PL_reentrant_buffer->_servent_buffer,
	461	PL_reentrant_buffer->_servent_size, char);
edd309b7	462	switch (PL_op->op_type) {
	463	case OP_GSBYNAME:
	464	p0 = va_arg(ap, void *);
	465	p1 = va_arg(ap, void *);
	466	retptr = getservbyname(p0, p1); break;
	467	case OP_GSBYPORT:
	468	anint = va_arg(ap, int);
	469	p0 = va_arg(ap, void *);
	470	retptr = getservbyport(anint, p0); break;
	471	case OP_GSERVENT:
	472	retptr = getservent(); break;
	473	default:
	474	break;
	475	}
	476	}
	477	}
	478	break;
	479	#endif
	480	default:
	481	/* Not known how to retry, so just fail. */
	482	break;
	483	}
	484
	485	va_end(ap);
	486	#endif
	487	return retptr;
	488	}
	489