gridspec_api/global/nccf_add_global_att.c

#include <string.h>

#include "nccf_global.h"

int nccf_add_global_att(int globalid, const char *attname, const char *attvalue,
                        int actionflag ){

  struct nccf_global_type *self;
  self = nccf_li_find(&CFLIST_GLOBAL, globalid);

  int status = NC_NOERR;
  char *oldval = NULL;
  char *newval = NULL;
  int len;


  /* Append attvalue to attname using space seperation */
  switch( actionflag ){

    case 1:  /* APPEND - attvalue to end of current value after delimeter */

      status = nccf_varGetAttribPtr( &self->global, attname, (const char**)&oldval );

      /* If the attribute is empty, set it. */
      if( oldval == NULL ){
        nccf_varSetAttrib( &self->global, attname, attvalue );
        break;
      }

      /* Append otherwise */
      len = strlen( oldval );
      len += strlen( attvalue );
      newval = (char*)calloc(len+2, sizeof(char));
      strcat( newval, oldval );
      strcat( newval, " " );
      strcat( newval, attvalue );
      nccf_varSetAttrib( &self->global, attname, newval );
      oldval = NULL;
      break;

    case 2: /* Replace - Overwrite */
      status = nccf_varSetAttrib(&self->global, attname, attvalue);
      break;

    default:  /* SET - No replacement */
      len = strlen( attvalue );

      status = nccf_varGetAttribPtr( &self->global, attname, (const char**)&oldval );

      if( oldval == NULL ){
        nccf_varSetAttrib( &self->global, attname, attvalue );

      } else {
        status = NC_EATTEXISTS;

      }

      break;

  }

  if( newval != NULL ) free( newval );
  return status;

}