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- /* -*- 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 */
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