/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* libc_r.h -- macros, defines, etc. to make using reentrant libc calls */
/* a bit easier. This was initially done for AIX pthreads, */
/* but should be usable for anyone... */
/* Most of these use locally defined space instead of static library space. */
/* Because of this, we use the _INIT_R to declare/allocate space (stack), */
/* and the plain routines to actually do it..._WARNING_: avoid allocating */
/* memory wherever possible. Memory allocation is fairly expensive, at */
/* least on AIX...use arrays instead (which allocate from the stack.) */
/* I know the names are a bit strange, but I wanted to be fairly certain */
/* that we didn't have any namespace corruption...in general, the inits are */
/* R_<name>_INIT_R(), and the actual calls are R_<name>_R(). */
#ifndef _LIBC_R_H
#define _LIBC_R_H
/************/
/* strtok */
/************/
#define R_STRTOK_INIT_R() \
char *r_strtok_r=NULL
#define R_STRTOK_R(
return,source,delim) \
return=strtok_r(source,delim,&r_strtok_r)
#define R_STRTOK_NORET_R(source,delim) \
strtok_r(source,delim,&r_strtok_r)
/**************/
/* strerror */
/**************/
#define R_MAX_STRERROR_LEN_R 8192
/* Straight from limits.h */
#define R_STRERROR_INIT_R() \
char r_strerror_r[R_MAX_STRERROR_LEN_R]
#define R_STRERROR_R(val) \
strerror_r(val,r_strerror_r,R_MAX_STRERROR_LEN_R)
/*****************/
/* time things */
/*****************/
#define R_ASCTIME_INIT_R() \
char r_asctime_r[26]
#define R_ASCTIME_R(val) \
asctime_r(val,r_asctime_r)
#define R_CTIME_INIT_R() \
char r_ctime_r[26]
#define R_CTIME_R(val) \
ctime_r(val,r_ctime_r)
#define R_GMTIME_INIT_R() \
struct tm r_gmtime_r
#define R_GMTIME_R(time) \
gmtime_r(time,&r_gmtime_r)
#define R_LOCALTIME_INIT_R() \
struct tm r_localtime_r
#define R_LOCALTIME_R(val) \
localtime_r(val,&r_localtime_r)
/***********/
/* crypt */
/***********/
#include <crypt.h>
#define R_CRYPT_INIT_R() \
CRYPTD r_cryptd_r; \
bzero(&r_cryptd_r,
sizeof(CRYPTD))
#define R_CRYPT_R(pass,salt) \
crypt_r(pass,salt,&r_cryptd_r)
/**************/
/* pw stuff */
/**************/
#define R_MAX_PW_LEN_R 1024
/* The following must be after the last declaration, but */
/* before the first bit of code... */
#define R_GETPWNAM_INIT_R(pw_ptr) \
struct passwd r_getpwnam_pw_r; \
char r_getpwnam_line_r[R_MAX_PW_LEN_R]; \
pw_ptr = &r_getpwnam_pw_r
#define R_GETPWNAM_R(name) \
getpwnam_r(name,&r_getpwnam_pw_r,r_getpwnam_line_r,R_MAX_PW_LEN_R)
/*******************/
/* gethost stuff */
/*******************/
#define R_GETHOSTBYADDR_INIT_R() \
struct hostent r_gethostbyaddr_r; \
struct hostent_data r_gethostbyaddr_data_r
#define R_GETHOSTBYADDR_R(addr,len,type,xptr_ent) \
bzero(&r_gethostbyaddr_r,
sizeof(
struct hostent)); \
bzero(&r_gethostbyaddr_data_r,
sizeof(
struct hostent_data)); \
xptr_ent = &r_gethostbyaddr_r; \
if (gethostbyaddr_r(addr,len,type, \
&r_gethostbyaddr_r,&r_gethostbyaddr_data_r) == -1) { \
xptr_ent = NULL; \
}
#define R_GETHOSTBYNAME_INIT_R() \
struct hostent r_gethostbyname_r; \
struct hostent_data r_gethostbyname_data_r
#define R_GETHOSTBYNAME_R(name,xptr_ent) \
bzero(&r_gethostbyname_r,
sizeof(
struct hostent)); \
bzero(&r_gethostbyname_data_r,
sizeof(
struct hostent_data)); \
xptr_ent = &r_gethostbyname_r; \
if (gethostbyname_r(name, \
&r_gethostbyname_r,&r_gethostbyname_data_r) == -1) { \
xptr_ent = NULL; \
}
#endif /* _LIBC_R_H */
