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