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    1: 
    2: /*
    3:  * Copyright (c) 2001-2002 Packet Design, LLC.
    4:  * All rights reserved.
    5:  * 
    6:  * Subject to the following obligations and disclaimer of warranty,
    7:  * use and redistribution of this software, in source or object code
    8:  * forms, with or without modifications are expressly permitted by
    9:  * Packet Design; provided, however, that:
   10:  * 
   11:  *    (i)  Any and all reproductions of the source or object code
   12:  *         must include the copyright notice above and the following
   13:  *         disclaimer of warranties; and
   14:  *    (ii) No rights are granted, in any manner or form, to use
   15:  *         Packet Design trademarks, including the mark "PACKET DESIGN"
   16:  *         on advertising, endorsements, or otherwise except as such
   17:  *         appears in the above copyright notice or in the software.
   18:  * 
   19:  * THIS SOFTWARE IS BEING PROVIDED BY PACKET DESIGN "AS IS", AND
   20:  * TO THE MAXIMUM EXTENT PERMITTED BY LAW, PACKET DESIGN MAKES NO
   21:  * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING
   22:  * THIS SOFTWARE, INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED
   23:  * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE,
   24:  * OR NON-INFRINGEMENT.  PACKET DESIGN DOES NOT WARRANT, GUARANTEE,
   25:  * OR MAKE ANY REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS
   26:  * OF THE USE OF THIS SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY,
   27:  * RELIABILITY OR OTHERWISE.  IN NO EVENT SHALL PACKET DESIGN BE
   28:  * LIABLE FOR ANY DAMAGES RESULTING FROM OR ARISING OUT OF ANY USE
   29:  * OF THIS SOFTWARE, INCLUDING WITHOUT LIMITATION, ANY DIRECT,
   30:  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, PUNITIVE, OR CONSEQUENTIAL
   31:  * DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, LOSS OF
   32:  * USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY THEORY OF
   33:  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   34:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
   35:  * THE USE OF THIS SOFTWARE, EVEN IF PACKET DESIGN IS ADVISED OF
   36:  * THE POSSIBILITY OF SUCH DAMAGE.
   37:  *
   38:  * Author: Archie Cobbs <archie@freebsd.org>
   39:  */
   40: 
   41: #include "tmpl_internal.h"
   42: 
   43: /*
   44:  * Free an array of parse elements.
   45:  */
   46: void
   47: _tmpl_free_elems(const char *mtype, void *eblock,
   48: 	struct tmpl_elem *elems, int num)
   49: {
   50: 	int i;
   51: 
   52: 	if (eblock != NULL) {
   53: 		FREE(mtype, eblock);
   54: 		return;
   55: 	}
   56: 	for (i = 0; i < num; i++) {
   57: 		if ((elems[i].flags & TMPL_ELEM_MMAP_TEXT) == 0)
   58: 			FREE(mtype, elems[i].text);
   59: 		_tmpl_free_call(mtype, &elems[i].call);
   60: 	}
   61: 	FREE(mtype, elems);
   62: }
   63: 
   64: /*
   65:  * Free a run-time function structure.
   66:  */
   67: void
   68: _tmpl_free_func(struct tmpl_ctx *ctx, struct exec_func *func)
   69: {
   70: 	/* Free name */
   71: 	FREE(ctx->mtype, func->name);
   72: 
   73: 	/* Free elements */
   74: 	_tmpl_free_elems(ctx->mtype, func->eblock, func->elems, func->num_elems);
   75: }
   76: 
   77: /*
   78:  * Free a parsed function call structure.
   79:  */
   80: void
   81: _tmpl_free_call(const char *mtype, struct func_call *call)
   82: {
   83: 	int i;
   84: 
   85: 	for (i = 0; i < call->nargs; i++)
   86: 		_tmpl_free_arg(mtype, &call->args[i]);
   87: 	FREE(mtype, call->args);
   88: 	FREE(mtype, call->funcname);
   89: 	memset(call, 0, sizeof(*call));
   90: }
   91: 
   92: /*
   93:  * Free a parsed function argument.
   94:  */
   95: void
   96: _tmpl_free_arg(const char *mtype, struct func_arg *arg)
   97: {
   98: 	if (arg->is_literal) {
   99: 		FREE(mtype, arg->u.literal);
  100: 		arg->u.literal = NULL;
  101: 	} else
  102: 		_tmpl_free_call(mtype, &arg->u.call);
  103: 	memset(arg, 0, sizeof(*arg));
  104: }
  105: