michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /* libc_r.h  --  macros, defines, etc. to make using reentrant libc calls */
michael@0: /*               a bit easier.  This was initially done for AIX pthreads, */
michael@0: /*               but should be usable for anyone...                       */
michael@0: 
michael@0: /* Most of these use locally defined space instead of static library space. */
michael@0: /* Because of this, we use the _INIT_R to declare/allocate space (stack),   */
michael@0: /* and the plain routines to actually do it..._WARNING_: avoid allocating   */
michael@0: /* memory wherever possible.  Memory allocation is fairly expensive, at     */
michael@0: /* least on AIX...use arrays instead (which allocate from the stack.)       */
michael@0: /* I know the names are a bit strange, but I wanted to be fairly certain    */
michael@0: /* that we didn't have any namespace corruption...in general, the inits are */
michael@0: /* R_<name>_INIT_R(), and the actual calls are R_<name>_R().                */
michael@0: 
michael@0: #ifndef _LIBC_R_H
michael@0: #define _LIBC_R_H
michael@0: 
michael@0: /************/
michael@0: /*  strtok  */
michael@0: /************/
michael@0: #define R_STRTOK_INIT_R() \
michael@0:     char *r_strtok_r=NULL
michael@0: 
michael@0: #define R_STRTOK_R(return,source,delim) \     
michael@0:     return=strtok_r(source,delim,&r_strtok_r)
michael@0: 
michael@0: #define R_STRTOK_NORET_R(source,delim) \
michael@0:     strtok_r(source,delim,&r_strtok_r)
michael@0: 
michael@0: /**************/
michael@0: /*  strerror  */
michael@0: /**************/
michael@0: #define R_MAX_STRERROR_LEN_R 8192     /* Straight from limits.h */
michael@0: 
michael@0: #define R_STRERROR_INIT_R() \
michael@0:     char r_strerror_r[R_MAX_STRERROR_LEN_R]
michael@0: 
michael@0: #define R_STRERROR_R(val) \
michael@0:     strerror_r(val,r_strerror_r,R_MAX_STRERROR_LEN_R)
michael@0: 
michael@0: /*****************/
michael@0: /*  time things  */
michael@0: /*****************/
michael@0: #define R_ASCTIME_INIT_R() \
michael@0:     char r_asctime_r[26]
michael@0: 
michael@0: #define R_ASCTIME_R(val) \
michael@0:     asctime_r(val,r_asctime_r)
michael@0: 
michael@0: #define R_CTIME_INIT_R() \
michael@0:     char r_ctime_r[26]
michael@0: 
michael@0: #define R_CTIME_R(val) \
michael@0:     ctime_r(val,r_ctime_r)
michael@0: 
michael@0: #define R_GMTIME_INIT_R() \
michael@0:     struct tm r_gmtime_r
michael@0: 
michael@0: #define R_GMTIME_R(time) \
michael@0:     gmtime_r(time,&r_gmtime_r)
michael@0: 
michael@0: #define R_LOCALTIME_INIT_R() \
michael@0:    struct tm r_localtime_r
michael@0: 
michael@0: #define R_LOCALTIME_R(val) \
michael@0:    localtime_r(val,&r_localtime_r)
michael@0:     
michael@0: /***********/
michael@0: /*  crypt  */
michael@0: /***********/
michael@0: #include <crypt.h>
michael@0: #define R_CRYPT_INIT_R() \
michael@0:     CRYPTD r_cryptd_r; \
michael@0:     bzero(&r_cryptd_r,sizeof(CRYPTD)) 
michael@0: 
michael@0: #define R_CRYPT_R(pass,salt) \
michael@0:     crypt_r(pass,salt,&r_cryptd_r)
michael@0: 
michael@0: /**************/
michael@0: /*  pw stuff  */
michael@0: /**************/
michael@0: #define R_MAX_PW_LEN_R 1024
michael@0: /* The following must be after the last declaration, but */
michael@0: /* before the first bit of code...                       */
michael@0: #define R_GETPWNAM_INIT_R(pw_ptr) \
michael@0:     struct passwd r_getpwnam_pw_r; \
michael@0:     char r_getpwnam_line_r[R_MAX_PW_LEN_R]; \
michael@0:     pw_ptr = &r_getpwnam_pw_r
michael@0: 
michael@0: #define R_GETPWNAM_R(name) \
michael@0:     getpwnam_r(name,&r_getpwnam_pw_r,r_getpwnam_line_r,R_MAX_PW_LEN_R)
michael@0: 
michael@0: /*******************/
michael@0: /*  gethost stuff  */
michael@0: /*******************/
michael@0: #define R_GETHOSTBYADDR_INIT_R() \
michael@0:     struct hostent r_gethostbyaddr_r; \
michael@0:     struct hostent_data r_gethostbyaddr_data_r
michael@0: 
michael@0: #define R_GETHOSTBYADDR_R(addr,len,type,xptr_ent) \
michael@0:     bzero(&r_gethostbyaddr_r,sizeof(struct hostent)); \
michael@0:     bzero(&r_gethostbyaddr_data_r,sizeof(struct hostent_data)); \
michael@0:     xptr_ent = &r_gethostbyaddr_r; \
michael@0:     if (gethostbyaddr_r(addr,len,type, \
michael@0:        &r_gethostbyaddr_r,&r_gethostbyaddr_data_r) == -1) { \
michael@0:            xptr_ent = NULL; \
michael@0:     }
michael@0: 
michael@0: #define R_GETHOSTBYNAME_INIT_R() \
michael@0:     struct hostent r_gethostbyname_r; \
michael@0:     struct hostent_data r_gethostbyname_data_r
michael@0: 
michael@0: #define R_GETHOSTBYNAME_R(name,xptr_ent) \
michael@0:     bzero(&r_gethostbyname_r,sizeof(struct hostent)); \
michael@0:     bzero(&r_gethostbyname_data_r,sizeof(struct hostent_data)); \
michael@0:     xptr_ent = &r_gethostbyname_r; \
michael@0:     if (gethostbyname_r(name, \
michael@0:        &r_gethostbyname_r,&r_gethostbyname_data_r) == -1) { \
michael@0:           xptr_ent = NULL; \
michael@0:     }
michael@0: 
michael@0: #endif /* _LIBC_R_H */