1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <string.h>
4 #include <errno.h>
5 #include <assert.h>
6
7 #include "asn1parser.h"
8
9 /*
10 * Construct a new empty parameters list.
11 */
12 asn1p_paramlist_t *
asn1p_paramlist_new(int _lineno)13 asn1p_paramlist_new(int _lineno) {
14 asn1p_paramlist_t *pl;
15
16 pl = calloc(1, sizeof *pl);
17 if(pl) {
18 pl->_lineno = _lineno;
19 }
20
21 return pl;
22 }
23
24 void
asn1p_paramlist_free(asn1p_paramlist_t * pl)25 asn1p_paramlist_free(asn1p_paramlist_t *pl) {
26 if(pl) {
27 if(pl->params) {
28 int i = pl->params_count;
29 while(i--) {
30 if(pl->params[i].governor)
31 asn1p_ref_free(pl->params[i].governor);
32 if(pl->params[i].argument)
33 free(pl->params[i].argument);
34 pl->params[i].governor = 0;
35 pl->params[i].argument = 0;
36 }
37 free(pl->params);
38 pl->params = 0;
39 }
40
41 free(pl);
42 }
43 }
44
45 int
asn1p_paramlist_add_param(asn1p_paramlist_t * pl,asn1p_ref_t * gov,char * arg)46 asn1p_paramlist_add_param(asn1p_paramlist_t *pl, asn1p_ref_t *gov, char *arg) {
47
48 if(!pl || !arg) {
49 errno = EINVAL;
50 return -1;
51 }
52
53 /*
54 * Make sure there's enough space to insert a new element.
55 */
56 if(pl->params_count == pl->params_size) {
57 int newsize = pl->params_size?pl->params_size<<2:4;
58 void *p;
59 p = realloc(pl->params,
60 newsize * sizeof(pl->params[0]));
61 if(p) {
62 pl->params = p;
63 pl->params_size = newsize;
64 memset(&pl->params[pl->params_count], 0,
65 (newsize - pl->params_size)
66 * sizeof(pl->params[0]));
67 } else {
68 return -1;
69 }
70
71 }
72
73 if(gov) {
74 pl->params[pl->params_count].governor = asn1p_ref_clone(gov);
75 if(pl->params[pl->params_count].governor == NULL)
76 return -1;
77 } else {
78 pl->params[pl->params_count].governor = 0;
79 }
80
81 pl->params[pl->params_count].argument = strdup(arg);
82 if(pl->params[pl->params_count].argument) {
83 pl->params_count++;
84 return 0;
85 } else {
86 if(pl->params[pl->params_count].governor)
87 asn1p_ref_free(pl->params[pl->params_count].governor);
88 return -1;
89 }
90 }
91
92 asn1p_paramlist_t *
asn1p_paramlist_clone(asn1p_paramlist_t * pl)93 asn1p_paramlist_clone(asn1p_paramlist_t *pl) {
94 asn1p_paramlist_t *newpl;
95
96 newpl = asn1p_paramlist_new(pl->_lineno);
97 if(newpl) {
98 int i;
99 for(i = 0; i < pl->params_count; i++) {
100 if(asn1p_paramlist_add_param(newpl,
101 pl->params[i].governor,
102 pl->params[i].argument
103 )) {
104 asn1p_paramlist_free(newpl);
105 newpl = NULL;
106 break;
107 }
108 }
109 }
110
111 return newpl;
112 }
113
114