mirror of https://gerrit.osmocom.org/asn1c
111 lines
2.0 KiB
C
111 lines
2.0 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <assert.h>
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#include "asn1parser.h"
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/*
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* Construct a new empty parameters list.
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*/
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asn1p_paramlist_t *
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asn1p_paramlist_new(int _lineno) {
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asn1p_paramlist_t *pl;
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pl = calloc(1, sizeof *pl);
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if(pl) {
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pl->_lineno = _lineno;
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}
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return pl;
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}
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void
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asn1p_paramlist_free(asn1p_paramlist_t *pl) {
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if(pl) {
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if(pl->params) {
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int i = pl->params_count;
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while(i--) {
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asn1p_ref_free(pl->params[i].governor);
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free(pl->params[i].argument);
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pl->params[i].governor = 0;
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pl->params[i].argument = 0;
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}
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free(pl->params);
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pl->params = 0;
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}
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free(pl);
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}
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}
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int
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asn1p_paramlist_add_param(asn1p_paramlist_t *pl, asn1p_ref_t *gov, char *arg) {
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if(!pl || !arg) {
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errno = EINVAL;
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return -1;
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}
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/*
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* Make sure there's enough space to insert a new element.
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*/
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if(pl->params_count == pl->params_size) {
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int newsize = pl->params_size?pl->params_size<<2:4;
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void *p;
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p = realloc(pl->params,
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newsize * sizeof(pl->params[0]));
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if(p) {
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pl->params = p;
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pl->params_size = newsize;
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memset(&pl->params[pl->params_count], 0,
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(newsize - pl->params_size)
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* sizeof(pl->params[0]));
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} else {
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return -1;
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}
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}
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if(gov) {
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pl->params[pl->params_count].governor = asn1p_ref_clone(gov);
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if(pl->params[pl->params_count].governor == NULL)
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return -1;
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} else {
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pl->params[pl->params_count].governor = 0;
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}
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pl->params[pl->params_count].argument = strdup(arg);
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if(pl->params[pl->params_count].argument) {
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pl->params_count++;
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return 0;
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} else {
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asn1p_ref_free(pl->params[pl->params_count].governor);
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return -1;
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}
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}
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asn1p_paramlist_t *
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asn1p_paramlist_clone(asn1p_paramlist_t *pl) {
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asn1p_paramlist_t *newpl;
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newpl = asn1p_paramlist_new(pl->_lineno);
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if(newpl) {
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int i;
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for(i = 0; i < pl->params_count; i++) {
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if(asn1p_paramlist_add_param(newpl,
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pl->params[i].governor,
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pl->params[i].argument
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)) {
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asn1p_paramlist_free(newpl);
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newpl = NULL;
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break;
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}
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}
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}
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return newpl;
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}
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