/* -*- 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 reentr.pl from data in reentr.pl. * * "Saruman," I said, standing away from him, "only one hand at a time can * wield the One, and you know that well, so do not trouble to say we!" * * 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_GMTIME_R #endif /* HAS_GMTIME_R */ #ifdef HAS_LOCALTIME_R #endif /* HAS_LOCALTIME_R */ #ifdef HAS_RANDOM_R #endif /* HAS_RANDOM_R */ #ifdef HAS_READDIR_R /* This is the size Solaris recommends. * (though we go static, should use pathconf() instead) */ PL_reentrant_buffer->_readdir_size = sizeof(struct dirent) + MAXPATHLEN + 1; #endif /* HAS_READDIR_R */ #ifdef HAS_READDIR64_R /* This is the size Solaris recommends. * (though we go static, should use pathconf() instead) */ PL_reentrant_buffer->_readdir64_size = sizeof(struct dirent64) + MAXPATHLEN + 1; #endif /* HAS_READDIR64_R */ #ifdef HAS_SETLOCALE_R PL_reentrant_buffer->_setlocale_size = REENTRANTSMALLSIZE; #endif /* HAS_SETLOCALE_R */ #ifdef HAS_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_GMTIME_R #endif /* HAS_GMTIME_R */ #ifdef HAS_LOCALTIME_R #endif /* HAS_LOCALTIME_R */ #ifdef HAS_RANDOM_R #endif /* HAS_RANDOM_R */ #ifdef HAS_READDIR_R PL_reentrant_buffer->_readdir_struct = (struct dirent*)safemalloc(PL_reentrant_buffer->_readdir_size); #endif /* HAS_READDIR_R */ #ifdef HAS_READDIR64_R PL_reentrant_buffer->_readdir64_struct = (struct dirent64*)safemalloc(PL_reentrant_buffer->_readdir64_size); #endif /* HAS_READDIR64_R */ #ifdef HAS_SETLOCALE_R 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_GMTIME_R #endif /* HAS_GMTIME_R */ #ifdef HAS_LOCALTIME_R #endif /* HAS_LOCALTIME_R */ #ifdef HAS_RANDOM_R #endif /* HAS_RANDOM_R */ #ifdef HAS_READDIR_R Safefree(PL_reentrant_buffer->_readdir_struct); #endif /* HAS_READDIR_R */ #ifdef HAS_READDIR64_R Safefree(PL_reentrant_buffer->_readdir64_struct); #endif /* HAS_READDIR64_R */ #ifdef HAS_SETLOCALE_R Safefree(PL_reentrant_buffer->_setlocale_buffer); #endif /* HAS_SETLOCALE_R */ #ifdef HAS_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; 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: */