/* -*- 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 */