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ha_tsa_common.c

/*
 * ha_tsa_common.c: common functions 
 *
 * Author: Jia Ming Pan <jmltc@cn.ibm.com>
 * Copyright (c) 2006 International Business Machines
 *
 * 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 <pygui_internal.h>
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif /* HAVE_STDINT_H */
#include <glib.h>
#include <string.h>
#include <pthread.h>
#include <signal.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <clplumbing/cl_log.h>
#include <clplumbing/GSource.h>
#include <clplumbing/cl_pidfile.h>
#include <clplumbing/cl_signal.h>
#include <clplumbing/coredumps.h>
#include <ha_msg.h>
#include "ha_tsa_common.h"


void 
init_logger(const char * entity)
{
        int debug_level = 2;
      cl_log_set_entity(entity);
      cl_log_enable_stderr(debug_level?TRUE:FALSE);
      cl_log_set_facility(HA_LOG_FACILITY);
}

char **
split_string(const char* string, int *len, const char *delim)
{
      char **strings = NULL;
      const char *p;

      *len = 0;
      while(*string){
            char * token = NULL;
            /* eat up delim chars */
            while (*string && strchr(delim, *string)) {
                  string++;
                  continue;
            }     
            if(!*string) {
                  break;
            }
            
            /* reach a delim char */
            p = string;
            while ( *p && !strchr(delim, *p) ) {
                  p ++;
                  continue;
            }
            
            /* copy string~(p-1) to token */
            token = malloc(p-string+1);
            if ( token == NULL ) {
                  return strings;
            }
            memcpy(token, string, p - string); 
            token[p-string] = EOS;

            strings = realloc(strings, (*len+1) * sizeof(char *));
            if ( strings == NULL ) {
                  return NULL;
            }
            strings[*len] = token;
            *len = *len + 1;
            string = p;
      }
      return strings;   
}

void
free_array(void** array, int len)
{
      int i;
      for (i=0; i<len; i++){
            if (array[i]) {
                  free(array[i]);
            }
      }
      free(array);
}


char*
run_shell_cmnd(const char *cmnd, int *rc, int *len)
{
      char * buffer = NULL;
      FILE * fstream = NULL;
      int offset = 0;

      *len = 0;
      if ( (fstream = popen(cmnd, "r")) == NULL ){
            cl_log(LOG_ERR, "run_shell_cmnd: popen error: %s",
                  strerror(errno)); 
            return NULL;
      }

      offset = 0;
      while (!feof(fstream)) {
            int bytes = 0;
            if ( (buffer = realloc(buffer, 1024) ) == NULL ) {
                  cl_log(LOG_ERR, "run_shell_cmnd: malloc failed.");
                  *len = 0;
                  goto out;
            }

            *len = *len + 1024;

            while ( bytes < 1024 ) { 
                  size_t rbytes =  fread(buffer + offset, 1, 1024 - bytes, fstream);
                  if ( rbytes == 0 ) { goto out; }
                  offset += rbytes;
            }
      }
out:  
      buffer[offset] = '\0';
      if ( (*rc = pclose(fstream)) == -1 ){
            /*** WARNING log ***/
                cl_log(LOG_WARNING, "failed to close pipe.");
      }
      return buffer;
}



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