[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.
 *
 * "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!"
 *
 * 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"

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_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;
#   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 == (size_t) -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->_spent_size == (size_t) -1)
		PL_reentrant_buffer->_spent_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_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_SRANDOM_R
#endif /* HAS_SRANDOM_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
	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_DRAND48_R
#endif /* HAS_DRAND48_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_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
	Newx(PL_reentrant_buffer->_setlocale_buffer, PL_reentrant_buffer->_setlocale_size, char);
#endif /* HAS_SETLOCALE_R */
#ifdef HAS_SRANDOM_R
#endif /* HAS_SRANDOM_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) {
#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_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_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_SRANDOM_R
#endif /* HAS_SRANDOM_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;
    va_list ap;
#ifdef USE_REENTRANT_API
    /* 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
	    {
		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((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;
		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((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;
		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((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;
		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((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;
	        case OP_GPWENT:
		    retptr = getpwent(); break;
	        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
	    {
		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((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
	    {
		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((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	*
	10	* !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
c416fdc9	11	* This file is built by regen/reentr.pl from data in regen/reentr.pl.
10bc17b6 JH	12	*
	13	* "Saruman," I said, standing away from him, "only one hand at a time can
	14	* wield the One, and you know that well, so do not trouble to say we!"
	15	*
61296642 DM	16	* This file contains a collection of automatically created wrappers
	17	* (created by running reentr.pl) for reentrant (thread-safe) versions of
	18	* various library calls, such as getpwent_r. The wrapping is done so
	19	* that other files like pp_sys.c calling those library functions need not
	20	* care about the differences between various platforms' idiosyncrasies
	21	* regarding these reentrant interfaces.
10bc17b6 JH	22	*/
	23
	24	#include "EXTERN.h"
	25	#define PERL_IN_REENTR_C
	26	#include "perl.h"
	27	#include "reentr.h"
	28
	29	void
	30	Perl_reentrant_size(pTHX) {
	31	#ifdef USE_REENTRANT_API
8695fa85 SR	32	#define REENTRANTSMALLSIZE 256 /* Make something up. */
8695fa85 SR	33	#define REENTRANTUSUALSIZE 4096 /* Make something up. */
10bc17b6	34	#ifdef HAS_ASCTIME_R
8695fa85	35	PL_reentrant_buffer->_asctime_size = REENTRANTSMALLSIZE;
10bc17b6 JH	36	#endif /* HAS_ASCTIME_R */
	37	#ifdef HAS_CRYPT_R
	38	#endif /* HAS_CRYPT_R */
	39	#ifdef HAS_CTIME_R
8695fa85	40	PL_reentrant_buffer->_ctime_size = REENTRANTSMALLSIZE;
10bc17b6 JH	41	#endif /* HAS_CTIME_R */
	42	#ifdef HAS_DRAND48_R
	43	#endif /* HAS_DRAND48_R */
	44	#ifdef HAS_GETGRNAM_R
0de8cad8 RGS	45	# if defined(HAS_SYSCONF) && defined(_SC_GETGR_R_SIZE_MAX) && !defined(__GLIBC__)
0de8cad8 RGS	46	PL_reentrant_buffer->_grent_size = sysconf(_SC_GETGR_R_SIZE_MAX);
a3dd3f83	47	if (PL_reentrant_buffer->_grent_size == (size_t) -1)
0de8cad8	48	PL_reentrant_buffer->_grent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	49	# else
10bc17b6 JH	50	# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
f7937171	51	PL_reentrant_buffer->_grent_size = SIABUFSIZ;
10bc17b6 JH	52	# else
10bc17b6 JH	53	# ifdef __sgi
f7937171	54	PL_reentrant_buffer->_grent_size = BUFSIZ;
10bc17b6	55	# else
f7937171	56	PL_reentrant_buffer->_grent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	57	# endif
	58	# endif
	59	# endif
	60	#endif /* HAS_GETGRNAM_R */
	61	#ifdef HAS_GETHOSTBYNAME_R
	62	#if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	63	PL_reentrant_buffer->_hostent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	64	#endif
	65	#endif /* HAS_GETHOSTBYNAME_R */
	66	#ifdef HAS_GETLOGIN_R
8695fa85	67	PL_reentrant_buffer->_getlogin_size = REENTRANTSMALLSIZE;
10bc17b6 JH	68	#endif /* HAS_GETLOGIN_R */
	69	#ifdef HAS_GETNETBYNAME_R
	70	#if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	71	PL_reentrant_buffer->_netent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	72	#endif
	73	#endif /* HAS_GETNETBYNAME_R */
	74	#ifdef HAS_GETPROTOBYNAME_R
	75	#if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	76	PL_reentrant_buffer->_protoent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	77	#endif
	78	#endif /* HAS_GETPROTOBYNAME_R */
	79	#ifdef HAS_GETPWNAM_R
	80	# if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
f7937171	81	PL_reentrant_buffer->_pwent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
a3dd3f83	82	if (PL_reentrant_buffer->_pwent_size == (size_t) -1)
f7937171	83	PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	84	# else
10bc17b6 JH	85	# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
f7937171	86	PL_reentrant_buffer->_pwent_size = SIABUFSIZ;
10bc17b6 JH	87	# else
10bc17b6 JH	88	# ifdef __sgi
f7937171	89	PL_reentrant_buffer->_pwent_size = BUFSIZ;
10bc17b6	90	# else
f7937171	91	PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	92	# endif
	93	# endif
	94	# endif
	95	#endif /* HAS_GETPWNAM_R */
	96	#ifdef HAS_GETSERVBYNAME_R
	97	#if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
f7937171	98	PL_reentrant_buffer->_servent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	99	#endif
	100	#endif /* HAS_GETSERVBYNAME_R */
	101	#ifdef HAS_GETSPNAM_R
f7937171 JH	102	# if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
f7937171 JH	103	PL_reentrant_buffer->_spent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
a3dd3f83	104	if (PL_reentrant_buffer->_spent_size == (size_t) -1)
0de8cad8	105	PL_reentrant_buffer->_spent_size = REENTRANTUSUALSIZE;
f7937171 JH	106	# else
	107	# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
	108	PL_reentrant_buffer->_spent_size = SIABUFSIZ;
	109	# else
	110	# ifdef __sgi
	111	PL_reentrant_buffer->_spent_size = BUFSIZ;
	112	# else
	113	PL_reentrant_buffer->_spent_size = REENTRANTUSUALSIZE;
	114	# endif
	115	# endif
	116	# endif
10bc17b6	117	#endif /* HAS_GETSPNAM_R */
10bc17b6 JH	118	#ifdef HAS_RANDOM_R
	119	#endif /* HAS_RANDOM_R */
	120	#ifdef HAS_READDIR_R
	121	/* This is the size Solaris recommends.
	122	* (though we go static, should use pathconf() instead) */
	123	PL_reentrant_buffer->_readdir_size = sizeof(struct dirent) + MAXPATHLEN + 1;
	124	#endif /* HAS_READDIR_R */
	125	#ifdef HAS_READDIR64_R
	126	/* This is the size Solaris recommends.
	127	* (though we go static, should use pathconf() instead) */
	128	PL_reentrant_buffer->_readdir64_size = sizeof(struct dirent64) + MAXPATHLEN + 1;
	129	#endif /* HAS_READDIR64_R */
	130	#ifdef HAS_SETLOCALE_R
8695fa85	131	PL_reentrant_buffer->_setlocale_size = REENTRANTSMALLSIZE;
10bc17b6	132	#endif /* HAS_SETLOCALE_R */
5cb13b8d JD	133	#ifdef HAS_SRANDOM_R
5cb13b8d JD	134	#endif /* HAS_SRANDOM_R */
10bc17b6	135	#ifdef HAS_STRERROR_R
8695fa85	136	PL_reentrant_buffer->_strerror_size = REENTRANTSMALLSIZE;
10bc17b6 JH	137	#endif /* HAS_STRERROR_R */
10bc17b6 JH	138	#ifdef HAS_TTYNAME_R
8695fa85	139	PL_reentrant_buffer->_ttyname_size = REENTRANTSMALLSIZE;
10bc17b6 JH	140	#endif /* HAS_TTYNAME_R */
	141
	142	#endif /* USE_REENTRANT_API */
	143	}
	144
	145	void
	146	Perl_reentrant_init(pTHX) {
	147	#ifdef USE_REENTRANT_API
a02a5408	148	Newx(PL_reentrant_buffer, 1, REENTR);
10bc17b6 JH	149	Perl_reentrant_size(aTHX);
10bc17b6 JH	150	#ifdef HAS_ASCTIME_R
a02a5408	151	Newx(PL_reentrant_buffer->_asctime_buffer, PL_reentrant_buffer->_asctime_size, char);
10bc17b6 JH	152	#endif /* HAS_ASCTIME_R */
10bc17b6 JH	153	#ifdef HAS_CRYPT_R
05404ffe JH	154	#if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
05404ffe JH	155	PL_reentrant_buffer->_crypt_struct_buffer = 0;
10bc17b6 JH	156	#endif
	157	#endif /* HAS_CRYPT_R */
	158	#ifdef HAS_CTIME_R
a02a5408	159	Newx(PL_reentrant_buffer->_ctime_buffer, PL_reentrant_buffer->_ctime_size, char);
10bc17b6 JH	160	#endif /* HAS_CTIME_R */
	161	#ifdef HAS_DRAND48_R
	162	#endif /* HAS_DRAND48_R */
	163	#ifdef HAS_GETGRNAM_R
f7937171 JH	164	# ifdef USE_GRENT_FPTR
f7937171 JH	165	PL_reentrant_buffer->_grent_fptr = NULL;
10bc17b6	166	# endif
a02a5408	167	Newx(PL_reentrant_buffer->_grent_buffer, PL_reentrant_buffer->_grent_size, char);
10bc17b6 JH	168	#endif /* HAS_GETGRNAM_R */
	169	#ifdef HAS_GETHOSTBYNAME_R
	170	#if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
a02a5408	171	Newx(PL_reentrant_buffer->_hostent_buffer, PL_reentrant_buffer->_hostent_size, char);
10bc17b6 JH	172	#endif
	173	#endif /* HAS_GETHOSTBYNAME_R */
	174	#ifdef HAS_GETLOGIN_R
a02a5408	175	Newx(PL_reentrant_buffer->_getlogin_buffer, PL_reentrant_buffer->_getlogin_size, char);
10bc17b6 JH	176	#endif /* HAS_GETLOGIN_R */
	177	#ifdef HAS_GETNETBYNAME_R
	178	#if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
a02a5408	179	Newx(PL_reentrant_buffer->_netent_buffer, PL_reentrant_buffer->_netent_size, char);
10bc17b6 JH	180	#endif
	181	#endif /* HAS_GETNETBYNAME_R */
	182	#ifdef HAS_GETPROTOBYNAME_R
	183	#if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
a02a5408	184	Newx(PL_reentrant_buffer->_protoent_buffer, PL_reentrant_buffer->_protoent_size, char);
10bc17b6 JH	185	#endif
	186	#endif /* HAS_GETPROTOBYNAME_R */
	187	#ifdef HAS_GETPWNAM_R
f7937171 JH	188	# ifdef USE_PWENT_FPTR
f7937171 JH	189	PL_reentrant_buffer->_pwent_fptr = NULL;
10bc17b6	190	# endif
a02a5408	191	Newx(PL_reentrant_buffer->_pwent_buffer, PL_reentrant_buffer->_pwent_size, char);
10bc17b6 JH	192	#endif /* HAS_GETPWNAM_R */
	193	#ifdef HAS_GETSERVBYNAME_R
	194	#if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
a02a5408	195	Newx(PL_reentrant_buffer->_servent_buffer, PL_reentrant_buffer->_servent_size, char);
10bc17b6 JH	196	#endif
	197	#endif /* HAS_GETSERVBYNAME_R */
	198	#ifdef HAS_GETSPNAM_R
f7937171 JH	199	# ifdef USE_SPENT_FPTR
	200	PL_reentrant_buffer->_spent_fptr = NULL;
	201	# endif
a02a5408	202	Newx(PL_reentrant_buffer->_spent_buffer, PL_reentrant_buffer->_spent_size, char);
10bc17b6	203	#endif /* HAS_GETSPNAM_R */
10bc17b6 JH	204	#ifdef HAS_RANDOM_R
	205	#endif /* HAS_RANDOM_R */
	206	#ifdef HAS_READDIR_R
	207	PL_reentrant_buffer->_readdir_struct = (struct dirent*)safemalloc(PL_reentrant_buffer->_readdir_size);
	208	#endif /* HAS_READDIR_R */
	209	#ifdef HAS_READDIR64_R
	210	PL_reentrant_buffer->_readdir64_struct = (struct dirent64*)safemalloc(PL_reentrant_buffer->_readdir64_size);
	211	#endif /* HAS_READDIR64_R */
	212	#ifdef HAS_SETLOCALE_R
a02a5408	213	Newx(PL_reentrant_buffer->_setlocale_buffer, PL_reentrant_buffer->_setlocale_size, char);
10bc17b6	214	#endif /* HAS_SETLOCALE_R */
5cb13b8d JD	215	#ifdef HAS_SRANDOM_R
5cb13b8d JD	216	#endif /* HAS_SRANDOM_R */
10bc17b6	217	#ifdef HAS_STRERROR_R
a02a5408	218	Newx(PL_reentrant_buffer->_strerror_buffer, PL_reentrant_buffer->_strerror_size, char);
10bc17b6 JH	219	#endif /* HAS_STRERROR_R */
10bc17b6 JH	220	#ifdef HAS_TTYNAME_R
a02a5408	221	Newx(PL_reentrant_buffer->_ttyname_buffer, PL_reentrant_buffer->_ttyname_size, char);
10bc17b6 JH	222	#endif /* HAS_TTYNAME_R */
	223
	224	#endif /* USE_REENTRANT_API */
	225	}
	226
	227	void
	228	Perl_reentrant_free(pTHX) {
	229	#ifdef USE_REENTRANT_API
	230	#ifdef HAS_ASCTIME_R
	231	Safefree(PL_reentrant_buffer->_asctime_buffer);
	232	#endif /* HAS_ASCTIME_R */
	233	#ifdef HAS_CRYPT_R
05404ffe JH	234	#if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
	235	Safefree(PL_reentrant_buffer->_crypt_struct_buffer);
	236	#endif
10bc17b6 JH	237	#endif /* HAS_CRYPT_R */
	238	#ifdef HAS_CTIME_R
	239	Safefree(PL_reentrant_buffer->_ctime_buffer);
	240	#endif /* HAS_CTIME_R */
	241	#ifdef HAS_DRAND48_R
	242	#endif /* HAS_DRAND48_R */
	243	#ifdef HAS_GETGRNAM_R
f7937171	244	Safefree(PL_reentrant_buffer->_grent_buffer);
10bc17b6 JH	245	#endif /* HAS_GETGRNAM_R */
	246	#ifdef HAS_GETHOSTBYNAME_R
	247	#if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	248	Safefree(PL_reentrant_buffer->_hostent_buffer);
10bc17b6 JH	249	#endif
	250	#endif /* HAS_GETHOSTBYNAME_R */
	251	#ifdef HAS_GETLOGIN_R
	252	Safefree(PL_reentrant_buffer->_getlogin_buffer);
	253	#endif /* HAS_GETLOGIN_R */
	254	#ifdef HAS_GETNETBYNAME_R
	255	#if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	256	Safefree(PL_reentrant_buffer->_netent_buffer);
10bc17b6 JH	257	#endif
	258	#endif /* HAS_GETNETBYNAME_R */
	259	#ifdef HAS_GETPROTOBYNAME_R
	260	#if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	261	Safefree(PL_reentrant_buffer->_protoent_buffer);
10bc17b6 JH	262	#endif
	263	#endif /* HAS_GETPROTOBYNAME_R */
	264	#ifdef HAS_GETPWNAM_R
f7937171	265	Safefree(PL_reentrant_buffer->_pwent_buffer);
10bc17b6 JH	266	#endif /* HAS_GETPWNAM_R */
	267	#ifdef HAS_GETSERVBYNAME_R
	268	#if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
f7937171	269	Safefree(PL_reentrant_buffer->_servent_buffer);
10bc17b6 JH	270	#endif
	271	#endif /* HAS_GETSERVBYNAME_R */
	272	#ifdef HAS_GETSPNAM_R
f7937171	273	Safefree(PL_reentrant_buffer->_spent_buffer);
10bc17b6	274	#endif /* HAS_GETSPNAM_R */
10bc17b6 JH	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 */
5cb13b8d JD	286	#ifdef HAS_SRANDOM_R
5cb13b8d JD	287	#endif /* HAS_SRANDOM_R */
10bc17b6 JH	288	#ifdef HAS_STRERROR_R
	289	Safefree(PL_reentrant_buffer->_strerror_buffer);
	290	#endif /* HAS_STRERROR_R */
	291	#ifdef HAS_TTYNAME_R
	292	Safefree(PL_reentrant_buffer->_ttyname_buffer);
	293	#endif /* HAS_TTYNAME_R */
	294
	295	Safefree(PL_reentrant_buffer);
	296	#endif /* USE_REENTRANT_API */
	297	}
	298
edd309b7 JH	299	void*
	300	Perl_reentrant_retry(const char *f, ...)
	301	{
abb2c242	302	dTHX;
edd309b7	303	void *retptr = NULL;
fe5bfecd	304	va_list ap;
7918f24d NC	305	#ifdef USE_REENTRANT_API
	306	/* Easier to special case this here than in embed.pl. (Look at what it
	307	generates for proto.h) */
	308	PERL_ARGS_ASSERT_REENTRANT_RETRY;
	309	#endif
fe5bfecd	310	va_start(ap, f);
369ec4b2	311	{
edd309b7	312	#ifdef USE_REENTRANT_API
0891a229	313	# 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	314	void *p0;
e3410746 SR	315	# endif
f7937171	316	# if defined(USE_SERVENT_BUFFER)
e3410746 SR	317	void *p1;
e3410746 SR	318	# endif
f7937171	319	# if defined(USE_HOSTENT_BUFFER)
edd309b7	320	size_t asize;
e3410746	321	# endif
f7937171	322	# if defined(USE_HOSTENT_BUFFER) \|\| defined(USE_NETENT_BUFFER) \|\| defined(USE_PROTOENT_BUFFER) \|\| defined(USE_SERVENT_BUFFER)
edd309b7	323	int anint;
e3410746	324	# endif
edd309b7	325
edd309b7	326	switch (PL_op->op_type) {
f7937171	327	#ifdef USE_HOSTENT_BUFFER
edd309b7 JH	328	case OP_GHBYADDR:
	329	case OP_GHBYNAME:
	330	case OP_GHOSTENT:
	331	{
af685957 JH	332	#ifdef PERL_REENTRANT_MAXSIZE
	333	if (PL_reentrant_buffer->_hostent_size <=
	334	PERL_REENTRANT_MAXSIZE / 2)
	335	#endif
	336	{
f7937171 JH	337	PL_reentrant_buffer->_hostent_size *= 2;
	338	Renew(PL_reentrant_buffer->_hostent_buffer,
	339	PL_reentrant_buffer->_hostent_size, char);
edd309b7 JH	340	switch (PL_op->op_type) {
	341	case OP_GHBYADDR:
	342	p0 = va_arg(ap, void *);
	343	asize = va_arg(ap, size_t);
	344	anint = va_arg(ap, int);
	345	retptr = gethostbyaddr(p0, asize, anint); break;
	346	case OP_GHBYNAME:
	347	p0 = va_arg(ap, void *);
f6f0b69b	348	retptr = gethostbyname((char *)p0); break;
edd309b7 JH	349	case OP_GHOSTENT:
	350	retptr = gethostent(); break;
	351	default:
0de8cad8	352	SETERRNO(ERANGE, LIB_INVARG);
edd309b7 JH	353	break;
	354	}
	355	}
	356	}
	357	break;
	358	#endif
f7937171	359	#ifdef USE_GRENT_BUFFER
edd309b7 JH	360	case OP_GGRNAM:
	361	case OP_GGRGID:
	362	case OP_GGRENT:
	363	{
af685957 JH	364	#ifdef PERL_REENTRANT_MAXSIZE
	365	if (PL_reentrant_buffer->_grent_size <=
	366	PERL_REENTRANT_MAXSIZE / 2)
	367	#endif
	368	{
edd309b7	369	Gid_t gid;
f7937171 JH	370	PL_reentrant_buffer->_grent_size *= 2;
	371	Renew(PL_reentrant_buffer->_grent_buffer,
	372	PL_reentrant_buffer->_grent_size, char);
edd309b7 JH	373	switch (PL_op->op_type) {
	374	case OP_GGRNAM:
	375	p0 = va_arg(ap, void *);
f6f0b69b	376	retptr = getgrnam((char *)p0); break;
edd309b7	377	case OP_GGRGID:
ab2b559b JH	378	#if Gid_t_size < INTSIZE
	379	gid = (Gid_t)va_arg(ap, int);
	380	#else
edd309b7	381	gid = va_arg(ap, Gid_t);
ab2b559b	382	#endif
edd309b7 JH	383	retptr = getgrgid(gid); break;
	384	case OP_GGRENT:
	385	retptr = getgrent(); break;
	386	default:
0de8cad8	387	SETERRNO(ERANGE, LIB_INVARG);
edd309b7 JH	388	break;
	389	}
	390	}
	391	}
	392	break;
	393	#endif
f7937171	394	#ifdef USE_NETENT_BUFFER
edd309b7 JH	395	case OP_GNBYADDR:
	396	case OP_GNBYNAME:
	397	case OP_GNETENT:
	398	{
af685957 JH	399	#ifdef PERL_REENTRANT_MAXSIZE
	400	if (PL_reentrant_buffer->_netent_size <=
	401	PERL_REENTRANT_MAXSIZE / 2)
	402	#endif
	403	{
edd309b7	404	Netdb_net_t net;
f7937171 JH	405	PL_reentrant_buffer->_netent_size *= 2;
	406	Renew(PL_reentrant_buffer->_netent_buffer,
	407	PL_reentrant_buffer->_netent_size, char);
edd309b7 JH	408	switch (PL_op->op_type) {
	409	case OP_GNBYADDR:
	410	net = va_arg(ap, Netdb_net_t);
	411	anint = va_arg(ap, int);
	412	retptr = getnetbyaddr(net, anint); break;
	413	case OP_GNBYNAME:
	414	p0 = va_arg(ap, void *);
f6f0b69b	415	retptr = getnetbyname((char *)p0); break;
edd309b7 JH	416	case OP_GNETENT:
	417	retptr = getnetent(); break;
	418	default:
0de8cad8	419	SETERRNO(ERANGE, LIB_INVARG);
edd309b7 JH	420	break;
	421	}
	422	}
	423	}
	424	break;
	425	#endif
f7937171	426	#ifdef USE_PWENT_BUFFER
edd309b7 JH	427	case OP_GPWNAM:
	428	case OP_GPWUID:
	429	case OP_GPWENT:
	430	{
af685957 JH	431	#ifdef PERL_REENTRANT_MAXSIZE
	432	if (PL_reentrant_buffer->_pwent_size <=
	433	PERL_REENTRANT_MAXSIZE / 2)
	434	#endif
	435	{
edd309b7	436	Uid_t uid;
f7937171 JH	437	PL_reentrant_buffer->_pwent_size *= 2;
	438	Renew(PL_reentrant_buffer->_pwent_buffer,
	439	PL_reentrant_buffer->_pwent_size, char);
edd309b7 JH	440	switch (PL_op->op_type) {
	441	case OP_GPWNAM:
	442	p0 = va_arg(ap, void *);
f6f0b69b	443	retptr = getpwnam((char *)p0); break;
edd309b7	444	case OP_GPWUID:
ab2b559b JH	445	#if Uid_t_size < INTSIZE
	446	uid = (Uid_t)va_arg(ap, int);
	447	#else
edd309b7	448	uid = va_arg(ap, Uid_t);
ab2b559b	449	#endif
edd309b7 JH	450	retptr = getpwuid(uid); break;
	451	case OP_GPWENT:
	452	retptr = getpwent(); break;
	453	default:
0de8cad8	454	SETERRNO(ERANGE, LIB_INVARG);
edd309b7 JH	455	break;
	456	}
	457	}
	458	}
	459	break;
	460	#endif
f7937171	461	#ifdef USE_PROTOENT_BUFFER
edd309b7 JH	462	case OP_GPBYNAME:
	463	case OP_GPBYNUMBER:
	464	case OP_GPROTOENT:
	465	{
af685957 JH	466	#ifdef PERL_REENTRANT_MAXSIZE
	467	if (PL_reentrant_buffer->_protoent_size <=
	468	PERL_REENTRANT_MAXSIZE / 2)
	469	#endif
	470	{
f7937171 JH	471	PL_reentrant_buffer->_protoent_size *= 2;
	472	Renew(PL_reentrant_buffer->_protoent_buffer,
	473	PL_reentrant_buffer->_protoent_size, char);
edd309b7 JH	474	switch (PL_op->op_type) {
	475	case OP_GPBYNAME:
	476	p0 = va_arg(ap, void *);
f6f0b69b	477	retptr = getprotobyname((char *)p0); break;
edd309b7 JH	478	case OP_GPBYNUMBER:
	479	anint = va_arg(ap, int);
	480	retptr = getprotobynumber(anint); break;
	481	case OP_GPROTOENT:
	482	retptr = getprotoent(); break;
	483	default:
0de8cad8	484	SETERRNO(ERANGE, LIB_INVARG);
edd309b7 JH	485	break;
	486	}
	487	}
	488	}
	489	break;
	490	#endif
f7937171	491	#ifdef USE_SERVENT_BUFFER
edd309b7 JH	492	case OP_GSBYNAME:
	493	case OP_GSBYPORT:
	494	case OP_GSERVENT:
	495	{
af685957 JH	496	#ifdef PERL_REENTRANT_MAXSIZE
	497	if (PL_reentrant_buffer->_servent_size <=
	498	PERL_REENTRANT_MAXSIZE / 2)
	499	#endif
	500	{
f7937171 JH	501	PL_reentrant_buffer->_servent_size *= 2;
	502	Renew(PL_reentrant_buffer->_servent_buffer,
	503	PL_reentrant_buffer->_servent_size, char);
edd309b7 JH	504	switch (PL_op->op_type) {
	505	case OP_GSBYNAME:
	506	p0 = va_arg(ap, void *);
	507	p1 = va_arg(ap, void *);
f6f0b69b	508	retptr = getservbyname((char )p0, (char )p1); break;
edd309b7 JH	509	case OP_GSBYPORT:
	510	anint = va_arg(ap, int);
	511	p0 = va_arg(ap, void *);
f6f0b69b	512	retptr = getservbyport(anint, (char *)p0); break;
edd309b7 JH	513	case OP_GSERVENT:
	514	retptr = getservent(); break;
	515	default:
0de8cad8	516	SETERRNO(ERANGE, LIB_INVARG);
edd309b7 JH	517	break;
	518	}
	519	}
	520	}
	521	break;
	522	#endif
	523	default:
	524	/* Not known how to retry, so just fail. */
	525	break;
	526	}
6148ee25 SP	527	#else
6148ee25 SP	528	PERL_UNUSED_ARG(f);
edd309b7	529	#endif
369ec4b2	530	}
fe5bfecd	531	va_end(ap);
edd309b7 JH	532	return retptr;
	533	}
	534
37442d52	535	/* ex: set ro: */