-/*
+/* -*- buffer-read-only: t -*-
+ *
* reentr.c
*
- * Copyright (c) 1997-2002, Larry Wall
+ * 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 reentrl.pl from data in reentr.pl.
- *
+ * !!!!!!! 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"
+#include "keywords.h"
+
+#define RenewDouble(data_pointer, size_pointer, type) \
+ STMT_START { \
+ const size_t size = MAX(*(size_pointer), 1) * 2; \
+ Renew((data_pointer), (size), type); \
+ *(size_pointer) = size; \
+ } STMT_END
void
Perl_reentrant_size(pTHX) {
+ PERL_UNUSED_CONTEXT;
+
+ /* Set the sizes of the reentrant buffers */
+
#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->_getgrent_size = sysconf(_SC_GETGR_R_SIZE_MAX);
- if (PL_reentrant_buffer->_getgrent_size == -1)
- PL_reentrant_buffer->_getgrent_size = REENTRANTUSUALSIZE;
-# else
-# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
- PL_reentrant_buffer->_getgrent_size = SIABUFSIZ;
-# else
-# ifdef __sgi
- PL_reentrant_buffer->_getgrent_size = BUFSIZ;
-# else
- PL_reentrant_buffer->_getgrent_size = REENTRANTUSUALSIZE;
-# endif
-# endif
-# endif
-#endif /* HAS_GETGRNAM_R */
-#ifdef HAS_GETHOSTBYNAME_R
-#if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
- PL_reentrant_buffer->_gethostent_size = REENTRANTUSUALSIZE;
-#endif
-#endif /* HAS_GETHOSTBYNAME_R */
-#ifdef HAS_GETLOGIN_R
+# define REENTRANTSMALLSIZE 256 /* Make something up. */
+# define REENTRANTUSUALSIZE 4096 /* Make something up. */
+
+# ifdef HAS_ASCTIME_R
+ PL_reentrant_buffer->_asctime_size = 26;
+# endif /* HAS_ASCTIME_R */
+
+# ifdef HAS_CRYPT_R
+# endif /* HAS_CRYPT_R */
+
+# ifdef HAS_CTIME_R
+ PL_reentrant_buffer->_ctime_size = 26;
+# 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->_getnetent_size = REENTRANTUSUALSIZE;
-#endif
-#endif /* HAS_GETNETBYNAME_R */
-#ifdef HAS_GETPROTOBYNAME_R
-#if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
- PL_reentrant_buffer->_getprotoent_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->_getpwent_size = sysconf(_SC_GETPW_R_SIZE_MAX);
- if (PL_reentrant_buffer->_getgrent_size == -1)
- PL_reentrant_buffer->_getgrent_size = REENTRANTUSUALSIZE;
-# else
-# if defined(__osf__) && defined(__alpha) && defined(SIABUFSIZ)
- PL_reentrant_buffer->_getpwent_size = SIABUFSIZ;
-# else
-# ifdef __sgi
- PL_reentrant_buffer->_getpwent_size = BUFSIZ;
-# else
- PL_reentrant_buffer->_getpwent_size = REENTRANTUSUALSIZE;
-# endif
-# endif
-# endif
-#endif /* HAS_GETPWNAM_R */
-#ifdef HAS_GETSERVBYNAME_R
-#if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
- PL_reentrant_buffer->_getservent_size = REENTRANTUSUALSIZE;
-#endif
-#endif /* HAS_GETSERVBYNAME_R */
-#ifdef HAS_GETSPNAM_R
- PL_reentrant_buffer->_getspent_size = 1024;
-#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
+# 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_GMTIME_R
+# endif /* HAS_GMTIME_R */
+
+# ifdef HAS_LOCALTIME_R
+# endif /* HAS_LOCALTIME_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
+# 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
+# endif /* HAS_READDIR64_R */
+
+# ifdef HAS_SETLOCALE_R
PL_reentrant_buffer->_setlocale_size = REENTRANTSMALLSIZE;
-#endif /* HAS_SETLOCALE_R */
-#ifdef HAS_STRERROR_R
+# endif /* HAS_SETLOCALE_R */
+
+# ifdef HAS_STRERROR_R
PL_reentrant_buffer->_strerror_size = REENTRANTSMALLSIZE;
-#endif /* HAS_STRERROR_R */
-#ifdef HAS_TTYNAME_R
+# endif /* HAS_STRERROR_R */
+
+# ifdef HAS_TTYNAME_R
PL_reentrant_buffer->_ttyname_size = REENTRANTSMALLSIZE;
-#endif /* HAS_TTYNAME_R */
+# endif /* HAS_TTYNAME_R */
+
#endif /* USE_REENTRANT_API */
+
}
void
Perl_reentrant_init(pTHX) {
+ PERL_UNUSED_CONTEXT;
+
+ /* Initialize the whole thing */
+
#ifdef USE_REENTRANT_API
- New(31337, PL_reentrant_buffer, 1, REENTR);
+
+ Newx(PL_reentrant_buffer, 1, REENTR);
Perl_reentrant_size(aTHX);
-#ifdef HAS_ASCTIME_R
- New(31338, PL_reentrant_buffer->_asctime_buffer, PL_reentrant_buffer->_asctime_size, char);
-#endif /* HAS_ASCTIME_R */
-#ifdef HAS_CRYPT_R
-#ifdef __GLIBC__
- PL_reentrant_buffer->_crypt_struct.initialized = 0;
-#endif
-#endif /* HAS_CRYPT_R */
-#ifdef HAS_CTIME_R
- New(31338, PL_reentrant_buffer->_ctime_buffer, PL_reentrant_buffer->_ctime_size, char);
-#endif /* HAS_CTIME_R */
-#ifdef HAS_DRAND48_R
-#endif /* HAS_DRAND48_R */
-#ifdef HAS_GETGRNAM_R
-# ifdef USE_GETGRENT_FPTR
- PL_reentrant_buffer->_getgrent_fptr = NULL;
+
+# 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
- New(31338, PL_reentrant_buffer->_getgrent_buffer, PL_reentrant_buffer->_getgrent_size, char);
-#endif /* HAS_GETGRNAM_R */
-#ifdef HAS_GETHOSTBYNAME_R
-#if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
- New(31338, PL_reentrant_buffer->_gethostent_buffer, PL_reentrant_buffer->_gethostent_size, char);
-#endif
-#endif /* HAS_GETHOSTBYNAME_R */
-#ifdef HAS_GETLOGIN_R
- New(31338, PL_reentrant_buffer->_getlogin_buffer, PL_reentrant_buffer->_getlogin_size, char);
-#endif /* HAS_GETLOGIN_R */
-#ifdef HAS_GETNETBYNAME_R
-#if !(GETNETBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
- New(31338, PL_reentrant_buffer->_getnetent_buffer, PL_reentrant_buffer->_getnetent_size, char);
-#endif
-#endif /* HAS_GETNETBYNAME_R */
-#ifdef HAS_GETPROTOBYNAME_R
-#if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
- New(31338, PL_reentrant_buffer->_getprotoent_buffer, PL_reentrant_buffer->_getprotoent_size, char);
-#endif
-#endif /* HAS_GETPROTOBYNAME_R */
-#ifdef HAS_GETPWNAM_R
-# ifdef USE_GETPWENT_FPTR
- PL_reentrant_buffer->_getpwent_fptr = NULL;
+ 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
- New(31338, PL_reentrant_buffer->_getpwent_buffer, PL_reentrant_buffer->_getpwent_size, char);
-#endif /* HAS_GETPWNAM_R */
-#ifdef HAS_GETSERVBYNAME_R
-#if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
- New(31338, PL_reentrant_buffer->_getservent_buffer, PL_reentrant_buffer->_getservent_size, char);
-#endif
-#endif /* HAS_GETSERVBYNAME_R */
-#ifdef HAS_GETSPNAM_R
- New(31338, PL_reentrant_buffer->_getspent_buffer, PL_reentrant_buffer->_getspent_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
+ 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_READDIR_R
PL_reentrant_buffer->_readdir_struct = (struct dirent*)safemalloc(PL_reentrant_buffer->_readdir_size);
-#endif /* HAS_READDIR_R */
-#ifdef HAS_READDIR64_R
+# endif /* HAS_READDIR_R */
+
+# ifdef HAS_READDIR64_R
PL_reentrant_buffer->_readdir64_struct = (struct dirent64*)safemalloc(PL_reentrant_buffer->_readdir64_size);
-#endif /* HAS_READDIR64_R */
-#ifdef HAS_SETLOCALE_R
- New(31338, PL_reentrant_buffer->_setlocale_buffer, PL_reentrant_buffer->_setlocale_size, char);
-#endif /* HAS_SETLOCALE_R */
-#ifdef HAS_STRERROR_R
- New(31338, PL_reentrant_buffer->_strerror_buffer, PL_reentrant_buffer->_strerror_size, char);
-#endif /* HAS_STRERROR_R */
-#ifdef HAS_TTYNAME_R
- New(31338, PL_reentrant_buffer->_ttyname_buffer, PL_reentrant_buffer->_ttyname_size, char);
-#endif /* HAS_TTYNAME_R */
+# endif /* 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;
+
+ /* Tear down */
+
#ifdef USE_REENTRANT_API
-#ifdef HAS_ASCTIME_R
+
+# ifdef HAS_ASCTIME_R
Safefree(PL_reentrant_buffer->_asctime_buffer);
-#endif /* HAS_ASCTIME_R */
-#ifdef HAS_CRYPT_R
-#endif /* HAS_CRYPT_R */
-#ifdef HAS_CTIME_R
+# 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->_getgrent_buffer);
-#endif /* HAS_GETGRNAM_R */
-#ifdef HAS_GETHOSTBYNAME_R
-#if !(GETHOSTBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
- Safefree(PL_reentrant_buffer->_gethostent_buffer);
-#endif
-#endif /* HAS_GETHOSTBYNAME_R */
-#ifdef HAS_GETLOGIN_R
+# 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->_getnetent_buffer);
-#endif
-#endif /* HAS_GETNETBYNAME_R */
-#ifdef HAS_GETPROTOBYNAME_R
-#if !(GETPROTOBYNAME_R_PROTO == REENTRANT_PROTO_I_CSD)
- Safefree(PL_reentrant_buffer->_getprotoent_buffer);
-#endif
-#endif /* HAS_GETPROTOBYNAME_R */
-#ifdef HAS_GETPWNAM_R
- Safefree(PL_reentrant_buffer->_getpwent_buffer);
-#endif /* HAS_GETPWNAM_R */
-#ifdef HAS_GETSERVBYNAME_R
-#if !(GETSERVBYNAME_R_PROTO == REENTRANT_PROTO_I_CCSD)
- Safefree(PL_reentrant_buffer->_getservent_buffer);
-#endif
-#endif /* HAS_GETSERVBYNAME_R */
-#ifdef HAS_GETSPNAM_R
- Safefree(PL_reentrant_buffer->_getspent_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
+# 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_READDIR_R
Safefree(PL_reentrant_buffer->_readdir_struct);
-#endif /* HAS_READDIR_R */
-#ifdef HAS_READDIR64_R
+# endif /* HAS_READDIR_R */
+
+# ifdef HAS_READDIR64_R
Safefree(PL_reentrant_buffer->_readdir64_struct);
-#endif /* HAS_READDIR64_R */
-#ifdef HAS_SETLOCALE_R
+# endif /* HAS_READDIR64_R */
+
+# ifdef HAS_SETLOCALE_R
Safefree(PL_reentrant_buffer->_setlocale_buffer);
-#endif /* HAS_SETLOCALE_R */
-#ifdef HAS_STRERROR_R
+# endif /* HAS_SETLOCALE_R */
+
+# ifdef HAS_STRERROR_R
Safefree(PL_reentrant_buffer->_strerror_buffer);
-#endif /* HAS_STRERROR_R */
-#ifdef HAS_TTYNAME_R
+# endif /* HAS_STRERROR_R */
+
+# ifdef HAS_TTYNAME_R
Safefree(PL_reentrant_buffer->_ttyname_buffer);
-#endif /* HAS_TTYNAME_R */
+# endif /* HAS_TTYNAME_R */
+
Safefree(PL_reentrant_buffer);
+
#endif /* USE_REENTRANT_API */
}
void*
Perl_reentrant_retry(const char *f, ...)
{
- dTHX;
+ /* This function is set up to be called if the normal function returns
+ * failure with errno ERANGE, which indicates the buffer is too small.
+ * This function calls the failing one again with a larger buffer.
+ *
+ * What has happened is that, due to the magic of C preprocessor macro
+ * expansion, when the original code called function 'foo(args)', it was
+ * instead compiled into something like a call of 'foo_r(args, buffer)'
+ * Below we retry with 'foo', but the preprocessor has changed that into
+ * 'foo_r', so this function will end up calling itself recursively, each
+ * time with a larger buffer. If PERL_REENTRANT_MAXSIZE is defined, it
+ * won't increase beyond that, instead failing. */
+
void *retptr = NULL;
-#ifdef USE_REENTRANT_API
- void *p0, *p1;
- size_t asize;
- int anint;
va_list ap;
+ I32 key = 0;
+
+#ifdef USE_REENTRANT_API
+
+ dTHX;
+
+ key = Perl_keyword (aTHX_ f, strlen(f), FALSE /* not feature enabled */);
+
+ /* Easier to special case this here than in embed.pl. (Look at what it
+ generates for proto.h) */
+ PERL_ARGS_ASSERT_REENTRANT_RETRY;
+
+#endif
+
+ if (key == 0) {
+
+#ifdef HAS_GETSPNAM_R
+
+ /* This is a #define as has no corresponding keyword */
+ if (strEQ(f, "getspnam")) {
+ key = KEY_getspnam;
+ }
+
+#endif
+
+ }
+ else if (key < 0) {
+ key = -key;
+ }
+
va_start(ap, f);
-#define REENTRANTHALFMAXSIZE 32768 /* The maximum may end up twice this. */
+#ifdef USE_REENTRANT_API
+
+ switch (key) {
+
+# ifdef USE_HOSTENT_BUFFER
- switch (PL_op->op_type) {
-#ifdef USE_GETHOSTENT_BUFFER
- case OP_GHBYADDR:
- case OP_GHBYNAME:
- case OP_GHOSTENT:
+ case KEY_gethostbyaddr:
+ case KEY_gethostbyname:
+ case KEY_endhostent:
{
- if (PL_reentrant_buffer->_gethostent_size <= REENTRANTHALFMAXSIZE) {
- PL_reentrant_buffer->_gethostent_size *= 2;
- Renew(PL_reentrant_buffer->_gethostent_buffer,
- PL_reentrant_buffer->_gethostent_size, char);
- switch (PL_op->op_type) {
- case OP_GHBYADDR:
- p0 = va_arg(ap, void *);
- asize = va_arg(ap, size_t);
+ char * host_addr;
+ Size_t asize;
+ char * host_name;
+ int anint;
+
+# 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 (key) {
+ case KEY_gethostbyaddr:
+ host_addr = va_arg(ap, char *);
+ asize = va_arg(ap, Size_t);
anint = va_arg(ap, int);
- retptr = gethostbyaddr(p0, asize, anint); break;
- case OP_GHBYNAME:
- p0 = va_arg(ap, void *);
- retptr = gethostbyname(p0); break;
- case OP_GHOSTENT:
+ /* socklen_t is what Posix 2001 says this should be */
+ retptr = gethostbyaddr(host_addr, (socklen_t) asize, anint); break;
+ case KEY_gethostbyname:
+ host_name = va_arg(ap, char *);
+ retptr = gethostbyname(host_name); break;
+ case KEY_endhostent:
retptr = gethostent(); break;
default:
+ SETERRNO(ERANGE, LIB_INVARG);
break;
- }
}
}
break;
-#endif
-#ifdef USE_GETGRENT_BUFFER
- case OP_GGRNAM:
- case OP_GGRGID:
- case OP_GGRENT:
+
+# endif
+# ifdef USE_GRENT_BUFFER
+
+ case KEY_getgrent:
+ case KEY_getgrgid:
+ case KEY_getgrnam:
{
- if (PL_reentrant_buffer->_getgrent_size <= REENTRANTHALFMAXSIZE) {
- Gid_t gid;
- PL_reentrant_buffer->_getgrent_size *= 2;
- Renew(PL_reentrant_buffer->_getgrent_buffer,
- PL_reentrant_buffer->_getgrent_size, char);
- switch (PL_op->op_type) {
- case OP_GGRNAM:
- p0 = va_arg(ap, void *);
- retptr = getgrnam(p0); break;
- case OP_GGRGID:
+ char * name;
+ Gid_t gid;
+
+# ifdef PERL_REENTRANT_MAXSIZE
+ if (PL_reentrant_buffer->_grent_size <=
+ PERL_REENTRANT_MAXSIZE / 2)
+# endif
+ RenewDouble(PL_reentrant_buffer->_grent_buffer,
+ &PL_reentrant_buffer->_grent_size, char);
+ switch (key) {
+ case KEY_getgrnam:
+ name = va_arg(ap, char *);
+ retptr = getgrnam(name); break;
+ case KEY_getgrgid:
+# 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:
+ case KEY_getgrent:
retptr = getgrent(); break;
default:
+ SETERRNO(ERANGE, LIB_INVARG);
break;
- }
}
}
break;
-#endif
-#ifdef USE_GETNETENT_BUFFER
- case OP_GNBYADDR:
- case OP_GNBYNAME:
- case OP_GNETENT:
+
+# endif
+# ifdef USE_NETENT_BUFFER
+
+ case KEY_getnetbyaddr:
+ case KEY_getnetbyname:
+ case KEY_getnetent:
{
- if (PL_reentrant_buffer->_getnetent_size <= REENTRANTHALFMAXSIZE) {
- Netdb_net_t net;
- PL_reentrant_buffer->_getnetent_size *= 2;
- Renew(PL_reentrant_buffer->_getnetent_buffer,
- PL_reentrant_buffer->_getnetent_size, char);
- switch (PL_op->op_type) {
- case OP_GNBYADDR:
- net = va_arg(ap, Netdb_net_t);
- anint = va_arg(ap, int);
- retptr = getnetbyaddr(net, anint); break;
- case OP_GNBYNAME:
- p0 = va_arg(ap, void *);
- retptr = getnetbyname(p0); break;
- case OP_GNETENT:
- retptr = getnetent(); break;
- default:
- break;
- }
+ char * name;
+ Netdb_net_t net;
+ int anint;
+
+# ifdef PERL_REENTRANT_MAXSIZE
+ if (PL_reentrant_buffer->_netent_size <=
+ PERL_REENTRANT_MAXSIZE / 2)
+# endif
+ RenewDouble(PL_reentrant_buffer->_netent_buffer,
+ &PL_reentrant_buffer->_netent_size, char);
+ switch (key) {
+ case KEY_getnetbyaddr:
+ net = va_arg(ap, Netdb_net_t);
+ anint = va_arg(ap, int);
+ retptr = getnetbyaddr(net, anint); break;
+ case KEY_getnetbyname:
+ name = va_arg(ap, char *);
+ retptr = getnetbyname(name); break;
+ case KEY_getnetent:
+ retptr = getnetent(); break;
+ default:
+ SETERRNO(ERANGE, LIB_INVARG);
+ break;
}
}
break;
-#endif
-#ifdef USE_GETPWENT_BUFFER
- case OP_GPWNAM:
- case OP_GPWUID:
- case OP_GPWENT:
+
+# endif
+# ifdef USE_PWENT_BUFFER
+
+ case KEY_getpwnam:
+ case KEY_getpwuid:
+ case KEY_getpwent:
{
- if (PL_reentrant_buffer->_getpwent_size <= REENTRANTHALFMAXSIZE) {
- Uid_t uid;
- PL_reentrant_buffer->_getpwent_size *= 2;
- Renew(PL_reentrant_buffer->_getpwent_buffer,
- PL_reentrant_buffer->_getpwent_size, char);
- switch (PL_op->op_type) {
- case OP_GPWNAM:
- p0 = va_arg(ap, void *);
- retptr = getpwnam(p0); break;
- case OP_GPWUID:
+ Uid_t uid;
+ char * name;
+
+# ifdef PERL_REENTRANT_MAXSIZE
+ if (PL_reentrant_buffer->_pwent_size <=
+ PERL_REENTRANT_MAXSIZE / 2)
+
+# endif
+ RenewDouble(PL_reentrant_buffer->_pwent_buffer,
+ &PL_reentrant_buffer->_pwent_size, char);
+ switch (key) {
+ case KEY_getpwnam:
+ name = va_arg(ap, char *);
+ retptr = getpwnam(name); break;
+ case KEY_getpwuid:
+
+# 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:
+
+# if defined(HAS_GETPWENT) || defined(HAS_GETPWENT_R)
+
+ case KEY_getpwent:
retptr = getpwent(); break;
+# endif
default:
+ SETERRNO(ERANGE, LIB_INVARG);
break;
- }
- }
+ }
}
break;
-#endif
-#ifdef USE_GETPROTOENT_BUFFER
- case OP_GPBYNAME:
- case OP_GPBYNUMBER:
- case OP_GPROTOENT:
+
+# endif
+# ifdef USE_SPENT_BUFFER
+
+ case KEY_getspnam:
{
- if (PL_reentrant_buffer->_getprotoent_size <= REENTRANTHALFMAXSIZE) {
- PL_reentrant_buffer->_getprotoent_size *= 2;
- Renew(PL_reentrant_buffer->_getprotoent_buffer,
- PL_reentrant_buffer->_getprotoent_size, char);
- switch (PL_op->op_type) {
- case OP_GPBYNAME:
- p0 = va_arg(ap, void *);
- retptr = getprotobyname(p0); break;
- case OP_GPBYNUMBER:
+ char * name;
+
+# ifdef PERL_REENTRANT_MAXSIZE
+ if (PL_reentrant_buffer->_spent_size <=
+ PERL_REENTRANT_MAXSIZE / 2)
+
+# endif
+ RenewDouble(PL_reentrant_buffer->_spent_buffer,
+ &PL_reentrant_buffer->_spent_size, char);
+ switch (key) {
+ case KEY_getspnam:
+ name = va_arg(ap, char *);
+ retptr = getspnam(name); break;
+ default:
+ SETERRNO(ERANGE, LIB_INVARG);
+ break;
+ }
+ }
+ break;
+
+# endif
+# ifdef USE_PROTOENT_BUFFER
+
+ case KEY_getprotobyname:
+ case KEY_getprotobynumber:
+ case KEY_getprotoent:
+ {
+ char * name;
+ int anint;
+
+# 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 (key) {
+ case KEY_getprotobyname:
+ name = va_arg(ap, char *);
+ retptr = getprotobyname(name); break;
+ case KEY_getprotobynumber:
anint = va_arg(ap, int);
retptr = getprotobynumber(anint); break;
- case OP_GPROTOENT:
+ case KEY_getprotoent:
retptr = getprotoent(); break;
default:
+ SETERRNO(ERANGE, LIB_INVARG);
break;
- }
}
}
break;
-#endif
-#ifdef USE_GETSERVENT_BUFFER
- case OP_GSBYNAME:
- case OP_GSBYPORT:
- case OP_GSERVENT:
+
+# endif
+# ifdef USE_SERVENT_BUFFER
+
+ case KEY_getservbyname:
+ case KEY_getservbyport:
+ case KEY_getservent:
{
- if (PL_reentrant_buffer->_getservent_size <= REENTRANTHALFMAXSIZE) {
- PL_reentrant_buffer->_getservent_size *= 2;
- Renew(PL_reentrant_buffer->_getservent_buffer,
- PL_reentrant_buffer->_getservent_size, char);
- switch (PL_op->op_type) {
- case OP_GSBYNAME:
- p0 = va_arg(ap, void *);
- p1 = va_arg(ap, void *);
- retptr = getservbyname(p0, p1); break;
- case OP_GSBYPORT:
+ char * name;
+ char * proto;
+ int anint;
+
+# 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 (key) {
+ case KEY_getservbyname:
+ name = va_arg(ap, char *);
+ proto = va_arg(ap, char *);
+ retptr = getservbyname(name, proto); break;
+ case KEY_getservbyport:
anint = va_arg(ap, int);
- p0 = va_arg(ap, void *);
- retptr = getservbyport(anint, p0); break;
- case OP_GSERVENT:
+ name = va_arg(ap, char *);
+ retptr = getservbyport(anint, name); break;
+ case KEY_getservent:
retptr = getservent(); break;
default:
+ SETERRNO(ERANGE, LIB_INVARG);
break;
- }
}
}
break;
-#endif
+
+# endif
+
default:
/* Not known how to retry, so just fail. */
break;
}
- va_end(ap);
+#else
+
+ PERL_UNUSED_ARG(f);
+
#endif
+
+ va_end(ap);
return retptr;
}
+/* ex: set ro: */
https://perl5.git.perl.org / perl5.git / blobdiff