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120 lines
2.5 KiB
120 lines
2.5 KiB
/*
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* $Id$
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*
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* Copyright (C) 2010 Daniel-Constantin Mierla (asipto.com)
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* ppcfg.c - config preprocessor directives
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*/
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "mem/mem.h"
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#include "ut.h"
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#include "re.h"
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#include "dprint.h"
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#include "ppcfg.h"
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typedef struct _pp_subst_rule {
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char *indata;
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void *ppdata;
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struct _pp_subst_rule *next;
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} pp_subst_rule_t;
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static pp_subst_rule_t *pp_subst_rules_head = NULL;
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static pp_subst_rule_t *pp_subst_rules_tail = NULL;
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int pp_subst_add(char *data)
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{
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struct subst_expr* se;
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str subst;
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pp_subst_rule_t *pr;
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subst.s = data;
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subst.len = strlen(subst.s);
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/* check for early invalid rule */
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if(subst.len<=0)
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return -1;
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pr = (pp_subst_rule_t*)pkg_malloc(sizeof(pp_subst_rule_t));
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if(pr==NULL)
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{
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LM_ERR("no more pkg\n");
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return -1;
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}
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memset(pr, 0, sizeof(pp_subst_rule_t));
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se=subst_parser(&subst);
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if (se==0)
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{
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LM_ERR("bad subst expression:: %s\n", data);
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pkg_free(pr);
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return -2;
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}
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pr->indata = data;
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pr->ppdata = (void*)se;
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if(pp_subst_rules_head==NULL)
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{
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pp_subst_rules_head = pr;
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} else {
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pp_subst_rules_tail->next = pr;
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}
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pp_subst_rules_tail = pr;
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return 0;
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}
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int pp_subst_run(char **data)
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{
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str* result;
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pp_subst_rule_t *pr;
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int i;
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if(pp_subst_rules_head==NULL)
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return 0;
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if(data==NULL || *data==NULL)
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return 0;
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if(strlen(*data)==0)
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return 0;
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pr = pp_subst_rules_head;
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i = 0;
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while(pr)
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{
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result=subst_str(*data, 0,
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(struct subst_expr*)pr->ppdata, 0); /* pkg malloc'ed result */
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if(result!=NULL)
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{
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i++;
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LM_DBG("preprocess subst applied [#%d] to [%s]"
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" - returning new string [%s]\n", i, *data, result->s);
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pkg_free(*data);
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*data = result->s;
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pkg_free(result);
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}
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pr = pr->next;
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}
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if(i!=0)
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return 1;
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return 0;
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}
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/* vi: set ts=4 sw=4 tw=79:ai:cindent: */
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