[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!"
 *
 * 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, ...)
{
    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
	    {
		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	*
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!
10bc17b6 JH	13	*
	14	* "Saruman," I said, standing away from him, "only one hand at a time can
	15	* wield the One, and you know that well, so do not trouble to say we!"
	16	*
61296642 DM	17	* This file contains a collection of automatically created wrappers
	18	* (created by running reentr.pl) for reentrant (thread-safe) versions of
	19	* various library calls, such as getpwent_r. The wrapping is done so
	20	* that other files like pp_sys.c calling those library functions need not
	21	* care about the differences between various platforms' idiosyncrasies
	22	* regarding these reentrant interfaces.
10bc17b6 JH	23	*/
	24
	25	#include "EXTERN.h"
	26	#define PERL_IN_REENTR_C
	27	#include "perl.h"
	28	#include "reentr.h"
	29
	30	void
	31	Perl_reentrant_size(pTHX) {
	32	#ifdef USE_REENTRANT_API
8695fa85 SR	33	#define REENTRANTSMALLSIZE 256 /* Make something up. */
8695fa85 SR	34	#define REENTRANTUSUALSIZE 4096 /* Make something up. */
10bc17b6	35	#ifdef HAS_ASCTIME_R
8695fa85	36	PL_reentrant_buffer->_asctime_size = REENTRANTSMALLSIZE;
10bc17b6 JH	37	#endif /* HAS_ASCTIME_R */
	38	#ifdef HAS_CRYPT_R
	39	#endif /* HAS_CRYPT_R */
	40	#ifdef HAS_CTIME_R
8695fa85	41	PL_reentrant_buffer->_ctime_size = REENTRANTSMALLSIZE;
10bc17b6 JH	42	#endif /* HAS_CTIME_R */
	43	#ifdef HAS_DRAND48_R
	44	#endif /* HAS_DRAND48_R */
	45	#ifdef HAS_GETGRNAM_R
0de8cad8 RGS	46	# if defined(HAS_SYSCONF) && defined(_SC_GETGR_R_SIZE_MAX) && !defined(__GLIBC__)
0de8cad8 RGS	47	PL_reentrant_buffer->_grent_size = sysconf(_SC_GETGR_R_SIZE_MAX);
a3dd3f83	48	if (PL_reentrant_buffer->_grent_size == (size_t) -1)
0de8cad8	49	PL_reentrant_buffer->_grent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	50	# else
10bc17b6 JH	51	# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
f7937171	52	PL_reentrant_buffer->_grent_size = SIABUFSIZ;
10bc17b6 JH	53	# else
10bc17b6 JH	54	# ifdef __sgi
f7937171	55	PL_reentrant_buffer->_grent_size = BUFSIZ;
10bc17b6	56	# else
f7937171	57	PL_reentrant_buffer->_grent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	58	# endif
	59	# endif
	60	# endif
	61	#endif /* HAS_GETGRNAM_R */
	62	#ifdef HAS_GETHOSTBYNAME_R
	63	#if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	64	PL_reentrant_buffer->_hostent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	65	#endif
	66	#endif /* HAS_GETHOSTBYNAME_R */
	67	#ifdef HAS_GETLOGIN_R
8695fa85	68	PL_reentrant_buffer->_getlogin_size = REENTRANTSMALLSIZE;
10bc17b6 JH	69	#endif /* HAS_GETLOGIN_R */
	70	#ifdef HAS_GETNETBYNAME_R
	71	#if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	72	PL_reentrant_buffer->_netent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	73	#endif
	74	#endif /* HAS_GETNETBYNAME_R */
	75	#ifdef HAS_GETPROTOBYNAME_R
	76	#if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	77	PL_reentrant_buffer->_protoent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	78	#endif
	79	#endif /* HAS_GETPROTOBYNAME_R */
	80	#ifdef HAS_GETPWNAM_R
	81	# if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
f7937171	82	PL_reentrant_buffer->_pwent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
a3dd3f83	83	if (PL_reentrant_buffer->_pwent_size == (size_t) -1)
f7937171	84	PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	85	# else
10bc17b6 JH	86	# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
f7937171	87	PL_reentrant_buffer->_pwent_size = SIABUFSIZ;
10bc17b6 JH	88	# else
10bc17b6 JH	89	# ifdef __sgi
f7937171	90	PL_reentrant_buffer->_pwent_size = BUFSIZ;
10bc17b6	91	# else
f7937171	92	PL_reentrant_buffer->_pwent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	93	# endif
	94	# endif
	95	# endif
	96	#endif /* HAS_GETPWNAM_R */
	97	#ifdef HAS_GETSERVBYNAME_R
	98	#if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
f7937171	99	PL_reentrant_buffer->_servent_size = REENTRANTUSUALSIZE;
10bc17b6 JH	100	#endif
	101	#endif /* HAS_GETSERVBYNAME_R */
	102	#ifdef HAS_GETSPNAM_R
f7937171 JH	103	# if defined(HAS_SYSCONF) && defined(_SC_GETPW_R_SIZE_MAX) && !defined(__GLIBC__)
f7937171 JH	104	PL_reentrant_buffer->_spent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
a3dd3f83	105	if (PL_reentrant_buffer->_spent_size == (size_t) -1)
0de8cad8	106	PL_reentrant_buffer->_spent_size = REENTRANTUSUALSIZE;
f7937171 JH	107	# else
	108	# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
	109	PL_reentrant_buffer->_spent_size = SIABUFSIZ;
	110	# else
	111	# ifdef __sgi
	112	PL_reentrant_buffer->_spent_size = BUFSIZ;
	113	# else
	114	PL_reentrant_buffer->_spent_size = REENTRANTUSUALSIZE;
	115	# endif
	116	# endif
	117	# endif
10bc17b6	118	#endif /* HAS_GETSPNAM_R */
10bc17b6 JH	119	#ifdef HAS_RANDOM_R
	120	#endif /* HAS_RANDOM_R */
	121	#ifdef HAS_READDIR_R
	122	/* This is the size Solaris recommends.
	123	* (though we go static, should use pathconf() instead) */
	124	PL_reentrant_buffer->_readdir_size = sizeof(struct dirent) + MAXPATHLEN + 1;
	125	#endif /* HAS_READDIR_R */
	126	#ifdef HAS_READDIR64_R
	127	/* This is the size Solaris recommends.
	128	* (though we go static, should use pathconf() instead) */
	129	PL_reentrant_buffer->_readdir64_size = sizeof(struct dirent64) + MAXPATHLEN + 1;
	130	#endif /* HAS_READDIR64_R */
	131	#ifdef HAS_SETLOCALE_R
8695fa85	132	PL_reentrant_buffer->_setlocale_size = REENTRANTSMALLSIZE;
10bc17b6	133	#endif /* HAS_SETLOCALE_R */
5cb13b8d JD	134	#ifdef HAS_SRANDOM_R
5cb13b8d JD	135	#endif /* HAS_SRANDOM_R */
10bc17b6	136	#ifdef HAS_STRERROR_R
8695fa85	137	PL_reentrant_buffer->_strerror_size = REENTRANTSMALLSIZE;
10bc17b6 JH	138	#endif /* HAS_STRERROR_R */
10bc17b6 JH	139	#ifdef HAS_TTYNAME_R
8695fa85	140	PL_reentrant_buffer->_ttyname_size = REENTRANTSMALLSIZE;
10bc17b6 JH	141	#endif /* HAS_TTYNAME_R */
	142
	143	#endif /* USE_REENTRANT_API */
	144	}
	145
	146	void
	147	Perl_reentrant_init(pTHX) {
	148	#ifdef USE_REENTRANT_API
a02a5408	149	Newx(PL_reentrant_buffer, 1, REENTR);
10bc17b6 JH	150	Perl_reentrant_size(aTHX);
10bc17b6 JH	151	#ifdef HAS_ASCTIME_R
a02a5408	152	Newx(PL_reentrant_buffer->_asctime_buffer, PL_reentrant_buffer->_asctime_size, char);
10bc17b6 JH	153	#endif /* HAS_ASCTIME_R */
10bc17b6 JH	154	#ifdef HAS_CRYPT_R
05404ffe JH	155	#if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
05404ffe JH	156	PL_reentrant_buffer->_crypt_struct_buffer = 0;
10bc17b6 JH	157	#endif
	158	#endif /* HAS_CRYPT_R */
	159	#ifdef HAS_CTIME_R
a02a5408	160	Newx(PL_reentrant_buffer->_ctime_buffer, PL_reentrant_buffer->_ctime_size, char);
10bc17b6 JH	161	#endif /* HAS_CTIME_R */
	162	#ifdef HAS_DRAND48_R
	163	#endif /* HAS_DRAND48_R */
	164	#ifdef HAS_GETGRNAM_R
f7937171 JH	165	# ifdef USE_GRENT_FPTR
f7937171 JH	166	PL_reentrant_buffer->_grent_fptr = NULL;
10bc17b6	167	# endif
a02a5408	168	Newx(PL_reentrant_buffer->_grent_buffer, PL_reentrant_buffer->_grent_size, char);
10bc17b6 JH	169	#endif /* HAS_GETGRNAM_R */
	170	#ifdef HAS_GETHOSTBYNAME_R
	171	#if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
a02a5408	172	Newx(PL_reentrant_buffer->_hostent_buffer, PL_reentrant_buffer->_hostent_size, char);
10bc17b6 JH	173	#endif
	174	#endif /* HAS_GETHOSTBYNAME_R */
	175	#ifdef HAS_GETLOGIN_R
a02a5408	176	Newx(PL_reentrant_buffer->_getlogin_buffer, PL_reentrant_buffer->_getlogin_size, char);
10bc17b6 JH	177	#endif /* HAS_GETLOGIN_R */
	178	#ifdef HAS_GETNETBYNAME_R
	179	#if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
a02a5408	180	Newx(PL_reentrant_buffer->_netent_buffer, PL_reentrant_buffer->_netent_size, char);
10bc17b6 JH	181	#endif
	182	#endif /* HAS_GETNETBYNAME_R */
	183	#ifdef HAS_GETPROTOBYNAME_R
	184	#if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
a02a5408	185	Newx(PL_reentrant_buffer->_protoent_buffer, PL_reentrant_buffer->_protoent_size, char);
10bc17b6 JH	186	#endif
	187	#endif /* HAS_GETPROTOBYNAME_R */
	188	#ifdef HAS_GETPWNAM_R
f7937171 JH	189	# ifdef USE_PWENT_FPTR
f7937171 JH	190	PL_reentrant_buffer->_pwent_fptr = NULL;
10bc17b6	191	# endif
a02a5408	192	Newx(PL_reentrant_buffer->_pwent_buffer, PL_reentrant_buffer->_pwent_size, char);
10bc17b6 JH	193	#endif /* HAS_GETPWNAM_R */
	194	#ifdef HAS_GETSERVBYNAME_R
	195	#if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
a02a5408	196	Newx(PL_reentrant_buffer->_servent_buffer, PL_reentrant_buffer->_servent_size, char);
10bc17b6 JH	197	#endif
	198	#endif /* HAS_GETSERVBYNAME_R */
	199	#ifdef HAS_GETSPNAM_R
f7937171 JH	200	# ifdef USE_SPENT_FPTR
	201	PL_reentrant_buffer->_spent_fptr = NULL;
	202	# endif
a02a5408	203	Newx(PL_reentrant_buffer->_spent_buffer, PL_reentrant_buffer->_spent_size, char);
10bc17b6	204	#endif /* HAS_GETSPNAM_R */
10bc17b6 JH	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
a02a5408	214	Newx(PL_reentrant_buffer->_setlocale_buffer, PL_reentrant_buffer->_setlocale_size, char);
10bc17b6	215	#endif /* HAS_SETLOCALE_R */
5cb13b8d JD	216	#ifdef HAS_SRANDOM_R
5cb13b8d JD	217	#endif /* HAS_SRANDOM_R */
10bc17b6	218	#ifdef HAS_STRERROR_R
a02a5408	219	Newx(PL_reentrant_buffer->_strerror_buffer, PL_reentrant_buffer->_strerror_size, char);
10bc17b6 JH	220	#endif /* HAS_STRERROR_R */
10bc17b6 JH	221	#ifdef HAS_TTYNAME_R
a02a5408	222	Newx(PL_reentrant_buffer->_ttyname_buffer, PL_reentrant_buffer->_ttyname_size, char);
10bc17b6 JH	223	#endif /* HAS_TTYNAME_R */
	224
	225	#endif /* USE_REENTRANT_API */
	226	}
	227
	228	void
	229	Perl_reentrant_free(pTHX) {
	230	#ifdef USE_REENTRANT_API
	231	#ifdef HAS_ASCTIME_R
	232	Safefree(PL_reentrant_buffer->_asctime_buffer);
	233	#endif /* HAS_ASCTIME_R */
	234	#ifdef HAS_CRYPT_R
05404ffe JH	235	#if CRYPT_R_PROTO != REENTRANT_PROTO_B_CCD
	236	Safefree(PL_reentrant_buffer->_crypt_struct_buffer);
	237	#endif
10bc17b6 JH	238	#endif /* HAS_CRYPT_R */
	239	#ifdef HAS_CTIME_R
	240	Safefree(PL_reentrant_buffer->_ctime_buffer);
	241	#endif /* HAS_CTIME_R */
	242	#ifdef HAS_DRAND48_R
	243	#endif /* HAS_DRAND48_R */
	244	#ifdef HAS_GETGRNAM_R
f7937171	245	Safefree(PL_reentrant_buffer->_grent_buffer);
10bc17b6 JH	246	#endif /* HAS_GETGRNAM_R */
	247	#ifdef HAS_GETHOSTBYNAME_R
	248	#if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	249	Safefree(PL_reentrant_buffer->_hostent_buffer);
10bc17b6 JH	250	#endif
	251	#endif /* HAS_GETHOSTBYNAME_R */
	252	#ifdef HAS_GETLOGIN_R
	253	Safefree(PL_reentrant_buffer->_getlogin_buffer);
	254	#endif /* HAS_GETLOGIN_R */
	255	#ifdef HAS_GETNETBYNAME_R
	256	#if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	257	Safefree(PL_reentrant_buffer->_netent_buffer);
10bc17b6 JH	258	#endif
	259	#endif /* HAS_GETNETBYNAME_R */
	260	#ifdef HAS_GETPROTOBYNAME_R
	261	#if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
f7937171	262	Safefree(PL_reentrant_buffer->_protoent_buffer);
10bc17b6 JH	263	#endif
	264	#endif /* HAS_GETPROTOBYNAME_R */
	265	#ifdef HAS_GETPWNAM_R
f7937171	266	Safefree(PL_reentrant_buffer->_pwent_buffer);
10bc17b6 JH	267	#endif /* HAS_GETPWNAM_R */
	268	#ifdef HAS_GETSERVBYNAME_R
	269	#if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
f7937171	270	Safefree(PL_reentrant_buffer->_servent_buffer);
10bc17b6 JH	271	#endif
	272	#endif /* HAS_GETSERVBYNAME_R */
	273	#ifdef HAS_GETSPNAM_R
f7937171	274	Safefree(PL_reentrant_buffer->_spent_buffer);
10bc17b6	275	#endif /* HAS_GETSPNAM_R */
10bc17b6 JH	276	#ifdef HAS_RANDOM_R
	277	#endif /* HAS_RANDOM_R */
	278	#ifdef HAS_READDIR_R
	279	Safefree(PL_reentrant_buffer->_readdir_struct);
	280	#endif /* HAS_READDIR_R */
	281	#ifdef HAS_READDIR64_R
	282	Safefree(PL_reentrant_buffer->_readdir64_struct);
	283	#endif /* HAS_READDIR64_R */
	284	#ifdef HAS_SETLOCALE_R
	285	Safefree(PL_reentrant_buffer->_setlocale_buffer);
	286	#endif /* HAS_SETLOCALE_R */
5cb13b8d JD	287	#ifdef HAS_SRANDOM_R
5cb13b8d JD	288	#endif /* HAS_SRANDOM_R */
10bc17b6 JH	289	#ifdef HAS_STRERROR_R
	290	Safefree(PL_reentrant_buffer->_strerror_buffer);
	291	#endif /* HAS_STRERROR_R */
	292	#ifdef HAS_TTYNAME_R
	293	Safefree(PL_reentrant_buffer->_ttyname_buffer);
	294	#endif /* HAS_TTYNAME_R */
	295
	296	Safefree(PL_reentrant_buffer);
	297	#endif /* USE_REENTRANT_API */
	298	}
	299
edd309b7 JH	300	void*
	301	Perl_reentrant_retry(const char *f, ...)
	302	{
edd309b7	303	void *retptr = NULL;
fe5bfecd	304	va_list ap;
7918f24d	305	#ifdef USE_REENTRANT_API
dbf7dff6	306	dTHX;
7918f24d NC	307	/* Easier to special case this here than in embed.pl. (Look at what it
	308	generates for proto.h) */
	309	PERL_ARGS_ASSERT_REENTRANT_RETRY;
	310	#endif
fe5bfecd	311	va_start(ap, f);
369ec4b2	312	{
edd309b7	313	#ifdef USE_REENTRANT_API
0891a229	314	# 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	315	void *p0;
e3410746 SR	316	# endif
f7937171	317	# if defined(USE_SERVENT_BUFFER)
e3410746 SR	318	void *p1;
e3410746 SR	319	# endif
f7937171	320	# if defined(USE_HOSTENT_BUFFER)
edd309b7	321	size_t asize;
e3410746	322	# endif
f7937171	323	# if defined(USE_HOSTENT_BUFFER) \|\| defined(USE_NETENT_BUFFER) \|\| defined(USE_PROTOENT_BUFFER) \|\| defined(USE_SERVENT_BUFFER)
edd309b7	324	int anint;
e3410746	325	# endif
edd309b7	326
edd309b7	327	switch (PL_op->op_type) {
f7937171	328	#ifdef USE_HOSTENT_BUFFER
edd309b7 JH	329	case OP_GHBYADDR:
	330	case OP_GHBYNAME:
	331	case OP_GHOSTENT:
	332	{
af685957 JH	333	#ifdef PERL_REENTRANT_MAXSIZE
	334	if (PL_reentrant_buffer->_hostent_size <=
	335	PERL_REENTRANT_MAXSIZE / 2)
	336	#endif
	337	{
f7937171 JH	338	PL_reentrant_buffer->_hostent_size *= 2;
	339	Renew(PL_reentrant_buffer->_hostent_buffer,
	340	PL_reentrant_buffer->_hostent_size, char);
edd309b7 JH	341	switch (PL_op->op_type) {
	342	case OP_GHBYADDR:
	343	p0 = va_arg(ap, void *);
	344	asize = va_arg(ap, size_t);
	345	anint = va_arg(ap, int);
	346	retptr = gethostbyaddr(p0, asize, anint); break;
	347	case OP_GHBYNAME:
	348	p0 = va_arg(ap, void *);
f6f0b69b	349	retptr = gethostbyname((char *)p0); break;
edd309b7 JH	350	case OP_GHOSTENT:
	351	retptr = gethostent(); break;
	352	default:
0de8cad8	353	SETERRNO(ERANGE, LIB_INVARG);
edd309b7 JH	354	break;
	355	}
	356	}
	357	}
	358	break;
	359	#endif
f7937171	360	#ifdef USE_GRENT_BUFFER
edd309b7 JH	361	case OP_GGRNAM:
	362	case OP_GGRGID:
	363	case OP_GGRENT:
	364	{
af685957 JH	365	#ifdef PERL_REENTRANT_MAXSIZE
	366	if (PL_reentrant_buffer->_grent_size <=
	367	PERL_REENTRANT_MAXSIZE / 2)
	368	#endif
	369	{
edd309b7	370	Gid_t gid;
f7937171 JH	371	PL_reentrant_buffer->_grent_size *= 2;
	372	Renew(PL_reentrant_buffer->_grent_buffer,
	373	PL_reentrant_buffer->_grent_size, char);
edd309b7 JH	374	switch (PL_op->op_type) {
	375	case OP_GGRNAM:
	376	p0 = va_arg(ap, void *);
f6f0b69b	377	retptr = getgrnam((char *)p0); break;
edd309b7	378	case OP_GGRGID:
ab2b559b JH	379	#if Gid_t_size < INTSIZE
	380	gid = (Gid_t)va_arg(ap, int);
	381	#else
edd309b7	382	gid = va_arg(ap, Gid_t);
ab2b559b	383	#endif
edd309b7 JH	384	retptr = getgrgid(gid); break;
	385	case OP_GGRENT:
	386	retptr = getgrent(); break;
	387	default:
0de8cad8	388	SETERRNO(ERANGE, LIB_INVARG);
edd309b7 JH	389	break;
	390	}
	391	}
	392	}
	393	break;
	394	#endif
f7937171	395	#ifdef USE_NETENT_BUFFER
edd309b7 JH	396	case OP_GNBYADDR:
	397	case OP_GNBYNAME:
	398	case OP_GNETENT:
	399	{
af685957 JH	400	#ifdef PERL_REENTRANT_MAXSIZE
	401	if (PL_reentrant_buffer->_netent_size <=
	402	PERL_REENTRANT_MAXSIZE / 2)
	403	#endif
	404	{
edd309b7	405	Netdb_net_t net;
f7937171 JH	406	PL_reentrant_buffer->_netent_size *= 2;
	407	Renew(PL_reentrant_buffer->_netent_buffer,
	408	PL_reentrant_buffer->_netent_size, char);
edd309b7 JH	409	switch (PL_op->op_type) {
	410	case OP_GNBYADDR:
	411	net = va_arg(ap, Netdb_net_t);
	412	anint = va_arg(ap, int);
	413	retptr = getnetbyaddr(net, anint); break;
	414	case OP_GNBYNAME:
	415	p0 = va_arg(ap, void *);
f6f0b69b	416	retptr = getnetbyname((char *)p0); break;
edd309b7 JH	417	case OP_GNETENT:
	418	retptr = getnetent(); break;
	419	default:
0de8cad8	420	SETERRNO(ERANGE, LIB_INVARG);
edd309b7 JH	421	break;
	422	}
	423	}
	424	}
	425	break;
	426	#endif
f7937171	427	#ifdef USE_PWENT_BUFFER
edd309b7 JH	428	case OP_GPWNAM:
	429	case OP_GPWUID:
	430	case OP_GPWENT:
	431	{
af685957 JH	432	#ifdef PERL_REENTRANT_MAXSIZE
	433	if (PL_reentrant_buffer->_pwent_size <=
	434	PERL_REENTRANT_MAXSIZE / 2)
	435	#endif
	436	{
edd309b7	437	Uid_t uid;
f7937171 JH	438	PL_reentrant_buffer->_pwent_size *= 2;
	439	Renew(PL_reentrant_buffer->_pwent_buffer,
	440	PL_reentrant_buffer->_pwent_size, char);
edd309b7 JH	441	switch (PL_op->op_type) {
	442	case OP_GPWNAM:
	443	p0 = va_arg(ap, void *);
f6f0b69b	444	retptr = getpwnam((char *)p0); break;
edd309b7	445	case OP_GPWUID:
ab2b559b JH	446	#if Uid_t_size < INTSIZE
	447	uid = (Uid_t)va_arg(ap, int);
	448	#else
edd309b7	449	uid = va_arg(ap, Uid_t);
ab2b559b	450	#endif
edd309b7 JH	451	retptr = getpwuid(uid); break;
	452	case OP_GPWENT:
	453	retptr = getpwent(); break;
	454	default:
0de8cad8	455	SETERRNO(ERANGE, LIB_INVARG);
edd309b7 JH	456	break;
	457	}
	458	}
	459	}
	460	break;
	461	#endif
f7937171	462	#ifdef USE_PROTOENT_BUFFER
edd309b7 JH	463	case OP_GPBYNAME:
	464	case OP_GPBYNUMBER:
	465	case OP_GPROTOENT:
	466	{
af685957 JH	467	#ifdef PERL_REENTRANT_MAXSIZE
	468	if (PL_reentrant_buffer->_protoent_size <=
	469	PERL_REENTRANT_MAXSIZE / 2)
	470	#endif
	471	{
f7937171 JH	472	PL_reentrant_buffer->_protoent_size *= 2;
	473	Renew(PL_reentrant_buffer->_protoent_buffer,
	474	PL_reentrant_buffer->_protoent_size, char);
edd309b7 JH	475	switch (PL_op->op_type) {
	476	case OP_GPBYNAME:
	477	p0 = va_arg(ap, void *);
f6f0b69b	478	retptr = getprotobyname((char *)p0); break;
edd309b7 JH	479	case OP_GPBYNUMBER:
	480	anint = va_arg(ap, int);
	481	retptr = getprotobynumber(anint); break;
	482	case OP_GPROTOENT:
	483	retptr = getprotoent(); break;
	484	default:
0de8cad8	485	SETERRNO(ERANGE, LIB_INVARG);
edd309b7 JH	486	break;
	487	}
	488	}
	489	}
	490	break;
	491	#endif
f7937171	492	#ifdef USE_SERVENT_BUFFER
edd309b7 JH	493	case OP_GSBYNAME:
	494	case OP_GSBYPORT:
	495	case OP_GSERVENT:
	496	{
af685957 JH	497	#ifdef PERL_REENTRANT_MAXSIZE
	498	if (PL_reentrant_buffer->_servent_size <=
	499	PERL_REENTRANT_MAXSIZE / 2)
	500	#endif
	501	{
f7937171 JH	502	PL_reentrant_buffer->_servent_size *= 2;
	503	Renew(PL_reentrant_buffer->_servent_buffer,
	504	PL_reentrant_buffer->_servent_size, char);
edd309b7 JH	505	switch (PL_op->op_type) {
	506	case OP_GSBYNAME:
	507	p0 = va_arg(ap, void *);
	508	p1 = va_arg(ap, void *);
f6f0b69b	509	retptr = getservbyname((char )p0, (char )p1); break;
edd309b7 JH	510	case OP_GSBYPORT:
	511	anint = va_arg(ap, int);
	512	p0 = va_arg(ap, void *);
f6f0b69b	513	retptr = getservbyport(anint, (char *)p0); break;
edd309b7 JH	514	case OP_GSERVENT:
	515	retptr = getservent(); break;
	516	default:
0de8cad8	517	SETERRNO(ERANGE, LIB_INVARG);
edd309b7 JH	518	break;
	519	}
	520	}
	521	}
	522	break;
	523	#endif
	524	default:
	525	/* Not known how to retry, so just fail. */
	526	break;
	527	}
6148ee25 SP	528	#else
6148ee25 SP	529	PERL_UNUSED_ARG(f);
edd309b7	530	#endif
369ec4b2	531	}
fe5bfecd	532	va_end(ap);
edd309b7 JH	533	return retptr;
	534	}
	535
37442d52	536	/* ex: set ro: */