NdbEnv.c
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:2k
- /* Copyright (C) 2003 MySQL AB
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
- #include "NdbEnv.h"
- #include <string.h>
- #include <stdlib.h>
- const char* NdbEnv_GetEnv(const char* name, char * buf, int buflen)
- {
- /**
- * All environment variables are associated with a process
- * it's important to read env from the correct process
- * for now read from own process, own block and last the "ose_shell" process.
- *
- * TODO! What process should this be read from in the future?
- *
- */
- PROCESS proc_;
- char* p = NULL;
- /* Look in own process */
- p = get_env(current_process(), (char*)name);
- if (p == NULL){
- /* Look in block process */
- p = get_env(get_bid(current_process()), (char*)name);
- if (p == NULL){
- /* Look in ose_shell process */
- if (hunt("ose_shell", 0, &proc_, NULL)){
- p = get_env(proc_, (char*)name);
- }
- }
- }
- if (p != NULL){
- strncpy(buf, p, buflen);
- buf[buflen-1] = 0;
- free_buf((union SIGNAL **)&p);
- p = buf;
- }
- return p;
- }