[perl5.git] / reentr.c

/* -*- buffer-read-only: t -*-
 *
 *    reentr.c
 *
 *    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 regen/reentr.pl from data in regen/reentr.pl.
 * Any changes made here will be lost!
 */

/*
 * "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!"
 *
 *     [p.260 of _The Lord of the Rings_, II/ii: "The Council of Elrond"]
 */

/*
 * This file contains a collection of automatically created wrappers
 * (created by running reentr.pl) for reentrant (thread-safe) versions of
 * various library calls, such as getpwent_r.  The wrapping is done so
 * that other files like pp_sys.c calling those library functions need not
 * care about the differences between various platforms' idiosyncrasies
 * regarding these reentrant interfaces.  
 */

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

#define RenewDouble(data_pointer, size_pointer, type) \
    STMT_START { \
	const size_t size = *(size_pointer) * 2; \
	Renew((data_pointer), (size), type); \
	*(size_pointer) = size; \
    } STMT_END

void
Perl_reentrant_size(pTHX) {
	PERL_UNUSED_CONTEXT;
#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_GETGRNAM_R
#   if defined(HAS_SYSCONF) && defined(_SC_GETGR_R_SIZE_MAX) && !defined(__GLIBC__)
	PL_reentrant_buffer->_grent_size = sysconf(_SC_GETGR_R_SIZE_MAX);
	if (PL_reentrant_buffer->_grent_size == (size_t) -1)
		PL_reentrant_buffer->_grent_size = REENTRANTUSUALSIZE;
#   elif defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
	PL_reentrant_buffer->_grent_size = SIABUFSIZ;
#   elif defined(__sgi)
	PL_reentrant_buffer->_grent_size = BUFSIZ;
#   else
	PL_reentrant_buffer->_grent_size = REENTRANTUSUALSIZE;
#   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 == (size_t) -1)
		PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
#   elif defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
	PL_reentrant_buffer->_pwent_size = SIABUFSIZ;
#   elif defined(__sgi)
	PL_reentrant_buffer->_pwent_size = BUFSIZ;
#   else
	PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
#   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->_spent_size == (size_t) -1)
		PL_reentrant_buffer->_spent_size = REENTRANTUSUALSIZE;
#   elif defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
	PL_reentrant_buffer->_spent_size = SIABUFSIZ;
#   elif defined(__sgi)
	PL_reentrant_buffer->_spent_size = BUFSIZ;
#   else
	PL_reentrant_buffer->_spent_size = REENTRANTUSUALSIZE;
#   endif 
#endif /* HAS_GETSPNAM_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) {
	PERL_UNUSED_CONTEXT;
#ifdef USE_REENTRANT_API
	Newx(PL_reentrant_buffer, 1, REENTR);
	Perl_reentrant_size(aTHX);
#ifdef HAS_ASCTIME_R
	Newx(PL_reentrant_buffer->_asctime_buffer, PL_reentrant_buffer->_asctime_size, char);
#endif /* HAS_ASCTIME_R */
#ifdef HAS_CRYPT_R
#if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
	PL_reentrant_buffer->_crypt_struct_buffer = 0;
#endif
#endif /* HAS_CRYPT_R */
#ifdef HAS_CTIME_R
	Newx(PL_reentrant_buffer->_ctime_buffer, PL_reentrant_buffer->_ctime_size, char);
#endif /* HAS_CTIME_R */
#ifdef HAS_GETGRNAM_R
#   ifdef USE_GRENT_FPTR
	PL_reentrant_buffer->_grent_fptr = NULL;
#   endif
	Newx(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)
	Newx(PL_reentrant_buffer->_hostent_buffer, PL_reentrant_buffer->_hostent_size, char);
#endif
#endif /* HAS_GETHOSTBYNAME_R */
#ifdef HAS_GETLOGIN_R
	Newx(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)
	Newx(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)
	Newx(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
	Newx(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)
	Newx(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
	Newx(PL_reentrant_buffer->_spent_buffer, PL_reentrant_buffer->_spent_size, char);
#endif /* HAS_GETSPNAM_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
	Newx(PL_reentrant_buffer->_setlocale_buffer, PL_reentrant_buffer->_setlocale_size, char);
#endif /* HAS_SETLOCALE_R */
#ifdef HAS_STRERROR_R
	Newx(PL_reentrant_buffer->_strerror_buffer, PL_reentrant_buffer->_strerror_size, char);
#endif /* HAS_STRERROR_R */
#ifdef HAS_TTYNAME_R
	Newx(PL_reentrant_buffer->_ttyname_buffer, PL_reentrant_buffer->_ttyname_size, char);
#endif /* HAS_TTYNAME_R */

#endif /* USE_REENTRANT_API */
}

void
Perl_reentrant_free(pTHX) {
	PERL_UNUSED_CONTEXT;
#ifdef USE_REENTRANT_API
#ifdef HAS_ASCTIME_R
	Safefree(PL_reentrant_buffer->_asctime_buffer);
#endif /* HAS_ASCTIME_R */
#ifdef HAS_CRYPT_R
#if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
	Safefree(PL_reentrant_buffer->_crypt_struct_buffer);
#endif
#endif /* HAS_CRYPT_R */
#ifdef HAS_CTIME_R
	Safefree(PL_reentrant_buffer->_ctime_buffer);
#endif /* HAS_CTIME_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_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, ...)
{
    void *retptr = NULL;
    va_list ap;
#ifdef USE_REENTRANT_API
    dTHX;
    /* Easier to special case this here than in embed.pl. (Look at what it
       generates for proto.h) */
    PERL_ARGS_ASSERT_REENTRANT_RETRY;
#endif
    va_start(ap, f);
    {
#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_SERVENT_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

    switch (PL_op->op_type) {
#ifdef USE_HOSTENT_BUFFER
    case OP_GHBYADDR:
    case OP_GHBYNAME:
    case OP_GHOSTENT:
	{
#ifdef PERL_REENTRANT_MAXSIZE
	    if (PL_reentrant_buffer->_hostent_size <=
		PERL_REENTRANT_MAXSIZE / 2)
#endif
	    {
		RenewDouble(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((char *)p0); break;
	        case OP_GHOSTENT:
		    retptr = gethostent(); break;
	        default:
		    SETERRNO(ERANGE, LIB_INVARG);
		    break;
	        }
	    }
	}
	break;
#endif
#ifdef USE_GRENT_BUFFER
    case OP_GGRNAM:
    case OP_GGRGID:
    case OP_GGRENT:
	{
#ifdef PERL_REENTRANT_MAXSIZE
	    if (PL_reentrant_buffer->_grent_size <=
		PERL_REENTRANT_MAXSIZE / 2)
#endif
	    {
		Gid_t gid;
		RenewDouble(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((char *)p0); break;
	        case OP_GGRGID:
#if Gid_t_size < INTSIZE
		    gid = (Gid_t)va_arg(ap, int);
#else
		    gid = va_arg(ap, Gid_t);
#endif
		    retptr = getgrgid(gid); break;
	        case OP_GGRENT:
		    retptr = getgrent(); break;
	        default:
		    SETERRNO(ERANGE, LIB_INVARG);
		    break;
	        }
	    }
	}
	break;
#endif
#ifdef USE_NETENT_BUFFER
    case OP_GNBYADDR:
    case OP_GNBYNAME:
    case OP_GNETENT:
	{
#ifdef PERL_REENTRANT_MAXSIZE
	    if (PL_reentrant_buffer->_netent_size <=
		PERL_REENTRANT_MAXSIZE / 2)
#endif
	    {
		Netdb_net_t net;
		RenewDouble(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((char *)p0); break;
	        case OP_GNETENT:
		    retptr = getnetent(); break;
	        default:
		    SETERRNO(ERANGE, LIB_INVARG);
		    break;
	        }
	    }
	}
	break;
#endif
#ifdef USE_PWENT_BUFFER
    case OP_GPWNAM:
    case OP_GPWUID:
    case OP_GPWENT:
	{
#ifdef PERL_REENTRANT_MAXSIZE
	    if (PL_reentrant_buffer->_pwent_size <=
		PERL_REENTRANT_MAXSIZE / 2)
#endif
	    {
		Uid_t uid;
		RenewDouble(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((char *)p0); break;
	        case OP_GPWUID:
#if Uid_t_size < INTSIZE
		    uid = (Uid_t)va_arg(ap, int);
#else
		    uid = va_arg(ap, Uid_t);
#endif
		    retptr = getpwuid(uid); break;
#if defined(HAS_GETPWENT) || defined(HAS_GETPWENT_R)
	        case OP_GPWENT:
		    retptr = getpwent(); break;
#endif
	        default:
		    SETERRNO(ERANGE, LIB_INVARG);
		    break;
	        }
	    }
	}
	break;
#endif
#ifdef USE_PROTOENT_BUFFER
    case OP_GPBYNAME:
    case OP_GPBYNUMBER:
    case OP_GPROTOENT:
	{
#ifdef PERL_REENTRANT_MAXSIZE
	    if (PL_reentrant_buffer->_protoent_size <=
		PERL_REENTRANT_MAXSIZE / 2)
#endif
	    {
		RenewDouble(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((char *)p0); break;
	        case OP_GPBYNUMBER:
		    anint = va_arg(ap, int);
		    retptr = getprotobynumber(anint); break;
	        case OP_GPROTOENT:
		    retptr = getprotoent(); break;
	        default:
		    SETERRNO(ERANGE, LIB_INVARG);
		    break;
	        }
	    }
	}
	break;
#endif
#ifdef USE_SERVENT_BUFFER
    case OP_GSBYNAME:
    case OP_GSBYPORT:
    case OP_GSERVENT:
	{
#ifdef PERL_REENTRANT_MAXSIZE
	    if (PL_reentrant_buffer->_servent_size <=
		PERL_REENTRANT_MAXSIZE / 2)
#endif
	    {
		RenewDouble(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((char *)p0, (char *)p1); break;
	        case OP_GSBYPORT:
		    anint = va_arg(ap, int);
		    p0 = va_arg(ap, void *);
		    retptr = getservbyport(anint, (char *)p0); break;
	        case OP_GSERVENT:
		    retptr = getservent(); break;
	        default:
		    SETERRNO(ERANGE, LIB_INVARG);
		    break;
	        }
	    }
	}
	break;
#endif
    default:
	/* Not known how to retry, so just fail. */
	break;
    }
#else
    PERL_UNUSED_ARG(f);
#endif
    }
    va_end(ap);
    return retptr;
}

/* ex: set ro: */
Commit	Line	Data
37442d52 RGS	1	/* -- buffer-read-only: t --
37442d52 RGS	2	*
10bc17b6 JH	3	* reentr.c
10bc17b6 JH	4	*
922adc66	5	* Copyright (C) 2002, 2003, 2005, 2006, 2007 by Larry Wall and others
10bc17b6 JH	6	*
	7	* You may distribute under the terms of either the GNU General Public
	8	* License or the Artistic License, as specified in the README file.
	9	*
78102347 NC	10	* !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
	11	* This file is built by regen/reentr.pl from data in regen/reentr.pl.
	12	* Any changes made here will be lost!
23ce015e JH	13	*/
	14
	15	/*
10bc17b6 JH	16	* "Saruman," I said, standing away from him, "only one hand at a time can
	17	* wield the One, and you know that well, so do not trouble to say we!"
	18	*
23ce015e JH	19	* [p.260 of _The Lord of the Rings_, II/ii: "The Council of Elrond"]
	20	*/
	21
	22	/*
61296642 DM	23	* This file contains a collection of automatically created wrappers
	24	* (created by running reentr.pl) for reentrant (thread-safe) versions of
	25	* various library calls, such as getpwent_r. The wrapping is done so
	26	* that other files like pp_sys.c calling those library functions need not
	27	* care about the differences between various platforms' idiosyncrasies
	28	* regarding these reentrant interfaces.
10bc17b6 JH	29	*/
	30
	31	#include "EXTERN.h"
	32	#define PERL_IN_REENTR_C
	33	#include "perl.h"
	34	#include "reentr.h"
	35
acfc2cc3 HS	36	#define RenewDouble(data_pointer, size_pointer, type) \
	37	STMT_START { \
	38	const size_t size = (size_pointer) 2; \
	39	Renew((data_pointer), (size), type); \
	40	*(size_pointer) = size; \
	41	} STMT_END
	42
10bc17b6 JH	43	void
10bc17b6 JH	44	Perl_reentrant_size(pTHX) {
23491f1d	45	PERL_UNUSED_CONTEXT;
10bc17b6	46	#ifdef USE_REENTRANT_API
8695fa85 SR	47	#define REENTRANTSMALLSIZE 256 /* Make something up. */
8695fa85 SR	48	#define REENTRANTUSUALSIZE 4096 /* Make something up. */
10bc17b6	49	#ifdef HAS_ASCTIME_R
8695fa85	50	PL_reentrant_buffer->_asctime_size = REENTRANTSMALLSIZE;
10bc17b6 JH	51	#endif /* HAS_ASCTIME_R */
	52	#ifdef HAS_CRYPT_R
	53	#endif /* HAS_CRYPT_R */
	54	#ifdef HAS_CTIME_R
8695fa85	55	PL_reentrant_buffer->_ctime_size = REENTRANTSMALLSIZE;
10bc17b6	56	#endif /* HAS_CTIME_R */
10bc17b6	57	#ifdef HAS_GETGRNAM_R
0de8cad8 RGS	58	# if defined(HAS_SYSCONF) && defined(_SC_GETGR_R_SIZE_MAX) && !defined(__GLIBC__)
0de8cad8 RGS	59	PL_reentrant_buffer->_grent_size = sysconf(_SC_GETGR_R_SIZE_MAX);
a3dd3f83	60	if (PL_reentrant_buffer->_grent_size == (size_t) -1)
0de8cad8	61	PL_reentrant_buffer->_grent_size = REENTRANTUSUALSIZE;
7ce6ba0f	62	# elif defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
f7937171	63	PL_reentrant_buffer->_grent_size = SIABUFSIZ;
7ce6ba0f	64	# elif defined(__sgi)
f7937171	65	PL_reentrant_buffer->_grent_size = BUFSIZ;
7ce6ba0f	66	# else
f7937171	67	PL_reentrant_buffer->_grent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	68	# endif
	69	#endif /* HAS_GETGRNAM_R */
	70	#ifdef HAS_GETHOSTBYNAME_R
	71	#if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	72	PL_reentrant_buffer->_hostent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	73	#endif
	74	#endif /* HAS_GETHOSTBYNAME_R */
	75	#ifdef HAS_GETLOGIN_R
8695fa85	76	PL_reentrant_buffer->_getlogin_size = REENTRANTSMALLSIZE;
10bc17b6 JH	77	#endif /* HAS_GETLOGIN_R */
	78	#ifdef HAS_GETNETBYNAME_R
	79	#if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	80	PL_reentrant_buffer->_netent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	81	#endif
	82	#endif /* HAS_GETNETBYNAME_R */
	83	#ifdef HAS_GETPROTOBYNAME_R
	84	#if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	85	PL_reentrant_buffer->_protoent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	86	#endif
	87	#endif /* HAS_GETPROTOBYNAME_R */
	88	#ifdef HAS_GETPWNAM_R
	89	# if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
f7937171	90	PL_reentrant_buffer->_pwent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
a3dd3f83	91	if (PL_reentrant_buffer->_pwent_size == (size_t) -1)
f7937171	92	PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
7ce6ba0f	93	# elif defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
f7937171	94	PL_reentrant_buffer->_pwent_size = SIABUFSIZ;
7ce6ba0f	95	# elif defined(__sgi)
f7937171	96	PL_reentrant_buffer->_pwent_size = BUFSIZ;
7ce6ba0f	97	# else
f7937171	98	PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	99	# endif
	100	#endif /* HAS_GETPWNAM_R */
	101	#ifdef HAS_GETSERVBYNAME_R
	102	#if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
f7937171	103	PL_reentrant_buffer->_servent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	104	#endif
	105	#endif /* HAS_GETSERVBYNAME_R */
	106	#ifdef HAS_GETSPNAM_R
f7937171 JH	107	# if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
f7937171 JH	108	PL_reentrant_buffer->_spent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
a3dd3f83	109	if (PL_reentrant_buffer->_spent_size == (size_t) -1)
0de8cad8	110	PL_reentrant_buffer->_spent_size = REENTRANTUSUALSIZE;
7ce6ba0f	111	# elif defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
f7937171	112	PL_reentrant_buffer->_spent_size = SIABUFSIZ;
7ce6ba0f	113	# elif defined(__sgi)
f7937171	114	PL_reentrant_buffer->_spent_size = BUFSIZ;
7ce6ba0f	115	# else
f7937171	116	PL_reentrant_buffer->_spent_size = REENTRANTUSUALSIZE;
f7937171	117	# endif
10bc17b6	118	#endif /* HAS_GETSPNAM_R */
10bc17b6 JH	119	#ifdef HAS_READDIR_R
	120	/* This is the size Solaris recommends.
	121	* (though we go static, should use pathconf() instead) */
	122	PL_reentrant_buffer->_readdir_size = sizeof(struct dirent) + MAXPATHLEN + 1;
	123	#endif /* HAS_READDIR_R */
	124	#ifdef HAS_READDIR64_R
	125	/* This is the size Solaris recommends.
	126	* (though we go static, should use pathconf() instead) */
	127	PL_reentrant_buffer->_readdir64_size = sizeof(struct dirent64) + MAXPATHLEN + 1;
	128	#endif /* HAS_READDIR64_R */
	129	#ifdef HAS_SETLOCALE_R
8695fa85	130	PL_reentrant_buffer->_setlocale_size = REENTRANTSMALLSIZE;
10bc17b6 JH	131	#endif /* HAS_SETLOCALE_R */
10bc17b6 JH	132	#ifdef HAS_STRERROR_R
8695fa85	133	PL_reentrant_buffer->_strerror_size = REENTRANTSMALLSIZE;
10bc17b6 JH	134	#endif /* HAS_STRERROR_R */
10bc17b6 JH	135	#ifdef HAS_TTYNAME_R
8695fa85	136	PL_reentrant_buffer->_ttyname_size = REENTRANTSMALLSIZE;
10bc17b6 JH	137	#endif /* HAS_TTYNAME_R */
	138
	139	#endif /* USE_REENTRANT_API */
	140	}
	141
	142	void
	143	Perl_reentrant_init(pTHX) {
23491f1d	144	PERL_UNUSED_CONTEXT;
10bc17b6	145	#ifdef USE_REENTRANT_API
a02a5408	146	Newx(PL_reentrant_buffer, 1, REENTR);
10bc17b6 JH	147	Perl_reentrant_size(aTHX);
10bc17b6 JH	148	#ifdef HAS_ASCTIME_R
a02a5408	149	Newx(PL_reentrant_buffer->_asctime_buffer, PL_reentrant_buffer->_asctime_size, char);
10bc17b6 JH	150	#endif /* HAS_ASCTIME_R */
10bc17b6 JH	151	#ifdef HAS_CRYPT_R
05404ffe JH	152	#if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
05404ffe JH	153	PL_reentrant_buffer->_crypt_struct_buffer = 0;
10bc17b6 JH	154	#endif
	155	#endif /* HAS_CRYPT_R */
	156	#ifdef HAS_CTIME_R
a02a5408	157	Newx(PL_reentrant_buffer->_ctime_buffer, PL_reentrant_buffer->_ctime_size, char);
10bc17b6	158	#endif /* HAS_CTIME_R */
10bc17b6	159	#ifdef HAS_GETGRNAM_R
f7937171 JH	160	# ifdef USE_GRENT_FPTR
f7937171 JH	161	PL_reentrant_buffer->_grent_fptr = NULL;
10bc17b6	162	# endif
a02a5408	163	Newx(PL_reentrant_buffer->_grent_buffer, PL_reentrant_buffer->_grent_size, char);
10bc17b6 JH	164	#endif /* HAS_GETGRNAM_R */
	165	#ifdef HAS_GETHOSTBYNAME_R
	166	#if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
a02a5408	167	Newx(PL_reentrant_buffer->_hostent_buffer, PL_reentrant_buffer->_hostent_size, char);
10bc17b6 JH	168	#endif
	169	#endif /* HAS_GETHOSTBYNAME_R */
	170	#ifdef HAS_GETLOGIN_R
a02a5408	171	Newx(PL_reentrant_buffer->_getlogin_buffer, PL_reentrant_buffer->_getlogin_size, char);
10bc17b6 JH	172	#endif /* HAS_GETLOGIN_R */
	173	#ifdef HAS_GETNETBYNAME_R
	174	#if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
a02a5408	175	Newx(PL_reentrant_buffer->_netent_buffer, PL_reentrant_buffer->_netent_size, char);
10bc17b6 JH	176	#endif
	177	#endif /* HAS_GETNETBYNAME_R */
	178	#ifdef HAS_GETPROTOBYNAME_R
	179	#if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
a02a5408	180	Newx(PL_reentrant_buffer->_protoent_buffer, PL_reentrant_buffer->_protoent_size, char);
10bc17b6 JH	181	#endif
	182	#endif /* HAS_GETPROTOBYNAME_R */
	183	#ifdef HAS_GETPWNAM_R
f7937171 JH	184	# ifdef USE_PWENT_FPTR
f7937171 JH	185	PL_reentrant_buffer->_pwent_fptr = NULL;
10bc17b6	186	# endif
a02a5408	187	Newx(PL_reentrant_buffer->_pwent_buffer, PL_reentrant_buffer->_pwent_size, char);
10bc17b6 JH	188	#endif /* HAS_GETPWNAM_R */
	189	#ifdef HAS_GETSERVBYNAME_R
	190	#if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
a02a5408	191	Newx(PL_reentrant_buffer->_servent_buffer, PL_reentrant_buffer->_servent_size, char);
10bc17b6 JH	192	#endif
	193	#endif /* HAS_GETSERVBYNAME_R */
	194	#ifdef HAS_GETSPNAM_R
f7937171 JH	195	# ifdef USE_SPENT_FPTR
	196	PL_reentrant_buffer->_spent_fptr = NULL;
	197	# endif
a02a5408	198	Newx(PL_reentrant_buffer->_spent_buffer, PL_reentrant_buffer->_spent_size, char);
10bc17b6	199	#endif /* HAS_GETSPNAM_R */
10bc17b6 JH	200	#ifdef HAS_READDIR_R
	201	PL_reentrant_buffer->_readdir_struct = (struct dirent*)safemalloc(PL_reentrant_buffer->_readdir_size);
	202	#endif /* HAS_READDIR_R */
	203	#ifdef HAS_READDIR64_R
	204	PL_reentrant_buffer->_readdir64_struct = (struct dirent64*)safemalloc(PL_reentrant_buffer->_readdir64_size);
	205	#endif /* HAS_READDIR64_R */
	206	#ifdef HAS_SETLOCALE_R
a02a5408	207	Newx(PL_reentrant_buffer->_setlocale_buffer, PL_reentrant_buffer->_setlocale_size, char);
10bc17b6 JH	208	#endif /* HAS_SETLOCALE_R */
10bc17b6 JH	209	#ifdef HAS_STRERROR_R
a02a5408	210	Newx(PL_reentrant_buffer->_strerror_buffer, PL_reentrant_buffer->_strerror_size, char);
10bc17b6 JH	211	#endif /* HAS_STRERROR_R */
10bc17b6 JH	212	#ifdef HAS_TTYNAME_R
a02a5408	213	Newx(PL_reentrant_buffer->_ttyname_buffer, PL_reentrant_buffer->_ttyname_size, char);
10bc17b6 JH	214	#endif /* HAS_TTYNAME_R */
	215
	216	#endif /* USE_REENTRANT_API */
	217	}
	218
	219	void
	220	Perl_reentrant_free(pTHX) {
23491f1d	221	PERL_UNUSED_CONTEXT;
10bc17b6 JH	222	#ifdef USE_REENTRANT_API
	223	#ifdef HAS_ASCTIME_R
	224	Safefree(PL_reentrant_buffer->_asctime_buffer);
	225	#endif /* HAS_ASCTIME_R */
	226	#ifdef HAS_CRYPT_R
05404ffe JH	227	#if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
	228	Safefree(PL_reentrant_buffer->_crypt_struct_buffer);
	229	#endif
10bc17b6 JH	230	#endif /* HAS_CRYPT_R */
	231	#ifdef HAS_CTIME_R
	232	Safefree(PL_reentrant_buffer->_ctime_buffer);
	233	#endif /* HAS_CTIME_R */
10bc17b6	234	#ifdef HAS_GETGRNAM_R
f7937171	235	Safefree(PL_reentrant_buffer->_grent_buffer);
10bc17b6 JH	236	#endif /* HAS_GETGRNAM_R */
	237	#ifdef HAS_GETHOSTBYNAME_R
	238	#if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	239	Safefree(PL_reentrant_buffer->_hostent_buffer);
10bc17b6 JH	240	#endif
	241	#endif /* HAS_GETHOSTBYNAME_R */
	242	#ifdef HAS_GETLOGIN_R
	243	Safefree(PL_reentrant_buffer->_getlogin_buffer);
	244	#endif /* HAS_GETLOGIN_R */
	245	#ifdef HAS_GETNETBYNAME_R
	246	#if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	247	Safefree(PL_reentrant_buffer->_netent_buffer);
10bc17b6 JH	248	#endif
	249	#endif /* HAS_GETNETBYNAME_R */
	250	#ifdef HAS_GETPROTOBYNAME_R
	251	#if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	252	Safefree(PL_reentrant_buffer->_protoent_buffer);
10bc17b6 JH	253	#endif
	254	#endif /* HAS_GETPROTOBYNAME_R */
	255	#ifdef HAS_GETPWNAM_R
f7937171	256	Safefree(PL_reentrant_buffer->_pwent_buffer);
10bc17b6 JH	257	#endif /* HAS_GETPWNAM_R */
	258	#ifdef HAS_GETSERVBYNAME_R
	259	#if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
f7937171	260	Safefree(PL_reentrant_buffer->_servent_buffer);
10bc17b6 JH	261	#endif
	262	#endif /* HAS_GETSERVBYNAME_R */
	263	#ifdef HAS_GETSPNAM_R
f7937171	264	Safefree(PL_reentrant_buffer->_spent_buffer);
10bc17b6	265	#endif /* HAS_GETSPNAM_R */
10bc17b6 JH	266	#ifdef HAS_READDIR_R
	267	Safefree(PL_reentrant_buffer->_readdir_struct);
	268	#endif /* HAS_READDIR_R */
	269	#ifdef HAS_READDIR64_R
	270	Safefree(PL_reentrant_buffer->_readdir64_struct);
	271	#endif /* HAS_READDIR64_R */
	272	#ifdef HAS_SETLOCALE_R
	273	Safefree(PL_reentrant_buffer->_setlocale_buffer);
	274	#endif /* HAS_SETLOCALE_R */
	275	#ifdef HAS_STRERROR_R
	276	Safefree(PL_reentrant_buffer->_strerror_buffer);
	277	#endif /* HAS_STRERROR_R */
	278	#ifdef HAS_TTYNAME_R
	279	Safefree(PL_reentrant_buffer->_ttyname_buffer);
	280	#endif /* HAS_TTYNAME_R */
	281
	282	Safefree(PL_reentrant_buffer);
	283	#endif /* USE_REENTRANT_API */
	284	}
	285
edd309b7 JH	286	void*
	287	Perl_reentrant_retry(const char *f, ...)
	288	{
edd309b7	289	void *retptr = NULL;
fe5bfecd	290	va_list ap;
7918f24d	291	#ifdef USE_REENTRANT_API
dbf7dff6	292	dTHX;
7918f24d NC	293	/* Easier to special case this here than in embed.pl. (Look at what it
	294	generates for proto.h) */
	295	PERL_ARGS_ASSERT_REENTRANT_RETRY;
	296	#endif
fe5bfecd	297	va_start(ap, f);
369ec4b2	298	{
edd309b7	299	#ifdef USE_REENTRANT_API
0891a229	300	# if defined(USE_HOSTENT_BUFFER) \|\| defined(USE_GRENT_BUFFER) \|\| defined(USE_NETENT_BUFFER) \|\| defined(USE_PWENT_BUFFER) \|\| defined(USE_PROTOENT_BUFFER) \|\| defined(USE_SERVENT_BUFFER)
e3410746 SR	301	void *p0;
e3410746 SR	302	# endif
f7937171	303	# if defined(USE_SERVENT_BUFFER)
e3410746 SR	304	void *p1;
e3410746 SR	305	# endif
f7937171	306	# if defined(USE_HOSTENT_BUFFER)
edd309b7	307	size_t asize;
e3410746	308	# endif
f7937171	309	# if defined(USE_HOSTENT_BUFFER) \|\| defined(USE_NETENT_BUFFER) \|\| defined(USE_PROTOENT_BUFFER) \|\| defined(USE_SERVENT_BUFFER)
edd309b7	310	int anint;
e3410746	311	# endif
edd309b7	312
edd309b7	313	switch (PL_op->op_type) {
f7937171	314	#ifdef USE_HOSTENT_BUFFER
edd309b7 JH	315	case OP_GHBYADDR:
	316	case OP_GHBYNAME:
	317	case OP_GHOSTENT:
	318	{
af685957 JH	319	#ifdef PERL_REENTRANT_MAXSIZE
	320	if (PL_reentrant_buffer->_hostent_size <=
	321	PERL_REENTRANT_MAXSIZE / 2)
	322	#endif
	323	{
acfc2cc3 HS	324	RenewDouble(PL_reentrant_buffer->_hostent_buffer,
acfc2cc3 HS	325	&PL_reentrant_buffer->_hostent_size, char);
edd309b7 JH	326	switch (PL_op->op_type) {
	327	case OP_GHBYADDR:
	328	p0 = va_arg(ap, void *);
	329	asize = va_arg(ap, size_t);
	330	anint = va_arg(ap, int);
	331	retptr = gethostbyaddr(p0, asize, anint); break;
	332	case OP_GHBYNAME:
	333	p0 = va_arg(ap, void *);
f6f0b69b	334	retptr = gethostbyname((char *)p0); break;
edd309b7 JH	335	case OP_GHOSTENT:
	336	retptr = gethostent(); break;
	337	default:
0de8cad8	338	SETERRNO(ERANGE, LIB_INVARG);
edd309b7 JH	339	break;
	340	}
	341	}
	342	}
	343	break;
	344	#endif
f7937171	345	#ifdef USE_GRENT_BUFFER
edd309b7 JH	346	case OP_GGRNAM:
	347	case OP_GGRGID:
	348	case OP_GGRENT:
	349	{
af685957 JH	350	#ifdef PERL_REENTRANT_MAXSIZE
	351	if (PL_reentrant_buffer->_grent_size <=
	352	PERL_REENTRANT_MAXSIZE / 2)
	353	#endif
	354	{
edd309b7	355	Gid_t gid;
acfc2cc3 HS	356	RenewDouble(PL_reentrant_buffer->_grent_buffer,
acfc2cc3 HS	357	&PL_reentrant_buffer->_grent_size, char);
edd309b7 JH	358	switch (PL_op->op_type) {
	359	case OP_GGRNAM:
	360	p0 = va_arg(ap, void *);
f6f0b69b	361	retptr = getgrnam((char *)p0); break;
edd309b7	362	case OP_GGRGID:
ab2b559b JH	363	#if Gid_t_size < INTSIZE
	364	gid = (Gid_t)va_arg(ap, int);
	365	#else
edd309b7	366	gid = va_arg(ap, Gid_t);
ab2b559b	367	#endif
edd309b7 JH	368	retptr = getgrgid(gid); break;
	369	case OP_GGRENT:
	370	retptr = getgrent(); break;
	371	default:
0de8cad8	372	SETERRNO(ERANGE, LIB_INVARG);
edd309b7 JH	373	break;
	374	}
	375	}
	376	}
	377	break;
	378	#endif
f7937171	379	#ifdef USE_NETENT_BUFFER
edd309b7 JH	380	case OP_GNBYADDR:
	381	case OP_GNBYNAME:
	382	case OP_GNETENT:
	383	{
af685957 JH	384	#ifdef PERL_REENTRANT_MAXSIZE
	385	if (PL_reentrant_buffer->_netent_size <=
	386	PERL_REENTRANT_MAXSIZE / 2)
	387	#endif
	388	{
edd309b7	389	Netdb_net_t net;
acfc2cc3 HS	390	RenewDouble(PL_reentrant_buffer->_netent_buffer,
acfc2cc3 HS	391	&PL_reentrant_buffer->_netent_size, char);
edd309b7 JH	392	switch (PL_op->op_type) {
	393	case OP_GNBYADDR:
	394	net = va_arg(ap, Netdb_net_t);
	395	anint = va_arg(ap, int);
	396	retptr = getnetbyaddr(net, anint); break;
	397	case OP_GNBYNAME:
	398	p0 = va_arg(ap, void *);
f6f0b69b	399	retptr = getnetbyname((char *)p0); break;
edd309b7 JH	400	case OP_GNETENT:
	401	retptr = getnetent(); break;
	402	default:
0de8cad8	403	SETERRNO(ERANGE, LIB_INVARG);
edd309b7 JH	404	break;
	405	}
	406	}
	407	}
	408	break;
	409	#endif
f7937171	410	#ifdef USE_PWENT_BUFFER
edd309b7 JH	411	case OP_GPWNAM:
	412	case OP_GPWUID:
	413	case OP_GPWENT:
	414	{
af685957 JH	415	#ifdef PERL_REENTRANT_MAXSIZE
	416	if (PL_reentrant_buffer->_pwent_size <=
	417	PERL_REENTRANT_MAXSIZE / 2)
	418	#endif
	419	{
edd309b7	420	Uid_t uid;
acfc2cc3 HS	421	RenewDouble(PL_reentrant_buffer->_pwent_buffer,
acfc2cc3 HS	422	&PL_reentrant_buffer->_pwent_size, char);
edd309b7 JH	423	switch (PL_op->op_type) {
	424	case OP_GPWNAM:
	425	p0 = va_arg(ap, void *);
f6f0b69b	426	retptr = getpwnam((char *)p0); break;
edd309b7	427	case OP_GPWUID:
ab2b559b JH	428	#if Uid_t_size < INTSIZE
	429	uid = (Uid_t)va_arg(ap, int);
	430	#else
edd309b7	431	uid = va_arg(ap, Uid_t);
ab2b559b	432	#endif
edd309b7	433	retptr = getpwuid(uid); break;
123829cf	434	#if defined(HAS_GETPWENT) \|\| defined(HAS_GETPWENT_R)
edd309b7 JH	435	case OP_GPWENT:
edd309b7 JH	436	retptr = getpwent(); break;
123829cf	437	#endif
edd309b7	438	default:
0de8cad8	439	SETERRNO(ERANGE, LIB_INVARG);
edd309b7 JH	440	break;
	441	}
	442	}
	443	}
	444	break;
	445	#endif
f7937171	446	#ifdef USE_PROTOENT_BUFFER
edd309b7 JH	447	case OP_GPBYNAME:
	448	case OP_GPBYNUMBER:
	449	case OP_GPROTOENT:
	450	{
af685957 JH	451	#ifdef PERL_REENTRANT_MAXSIZE
	452	if (PL_reentrant_buffer->_protoent_size <=
	453	PERL_REENTRANT_MAXSIZE / 2)
	454	#endif
	455	{
acfc2cc3 HS	456	RenewDouble(PL_reentrant_buffer->_protoent_buffer,
acfc2cc3 HS	457	&PL_reentrant_buffer->_protoent_size, char);
edd309b7 JH	458	switch (PL_op->op_type) {
	459	case OP_GPBYNAME:
	460	p0 = va_arg(ap, void *);
f6f0b69b	461	retptr = getprotobyname((char *)p0); break;
edd309b7 JH	462	case OP_GPBYNUMBER:
	463	anint = va_arg(ap, int);
	464	retptr = getprotobynumber(anint); break;
	465	case OP_GPROTOENT:
	466	retptr = getprotoent(); break;
	467	default:
0de8cad8	468	SETERRNO(ERANGE, LIB_INVARG);
edd309b7 JH	469	break;
	470	}
	471	}
	472	}
	473	break;
	474	#endif
f7937171	475	#ifdef USE_SERVENT_BUFFER
edd309b7 JH	476	case OP_GSBYNAME:
	477	case OP_GSBYPORT:
	478	case OP_GSERVENT:
	479	{
af685957 JH	480	#ifdef PERL_REENTRANT_MAXSIZE
	481	if (PL_reentrant_buffer->_servent_size <=
	482	PERL_REENTRANT_MAXSIZE / 2)
	483	#endif
	484	{
acfc2cc3 HS	485	RenewDouble(PL_reentrant_buffer->_servent_buffer,
acfc2cc3 HS	486	&PL_reentrant_buffer->_servent_size, char);
edd309b7 JH	487	switch (PL_op->op_type) {
	488	case OP_GSBYNAME:
	489	p0 = va_arg(ap, void *);
	490	p1 = va_arg(ap, void *);
f6f0b69b	491	retptr = getservbyname((char )p0, (char )p1); break;
edd309b7 JH	492	case OP_GSBYPORT:
	493	anint = va_arg(ap, int);
	494	p0 = va_arg(ap, void *);
f6f0b69b	495	retptr = getservbyport(anint, (char *)p0); break;
edd309b7 JH	496	case OP_GSERVENT:
	497	retptr = getservent(); break;
	498	default:
0de8cad8	499	SETERRNO(ERANGE, LIB_INVARG);
edd309b7 JH	500	break;
	501	}
	502	}
	503	}
	504	break;
	505	#endif
	506	default:
	507	/* Not known how to retry, so just fail. */
	508	break;
	509	}
6148ee25 SP	510	#else
6148ee25 SP	511	PERL_UNUSED_ARG(f);
edd309b7	512	#endif
369ec4b2	513	}
fe5bfecd	514	va_end(ap);
edd309b7 JH	515	return retptr;
	516	}
	517
37442d52	518	/* ex: set ro: */