| Lev Walkin | f15320b | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 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 * |
| 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 |
| 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 |
| 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 | } else { |
| 65 | return -1; |
| 66 | } |
| 67 | |
| 68 | } |
| 69 | |
| 70 | if(gov) { |
| 71 | pl->params[pl->params_count].governor = asn1p_ref_clone(gov); |
| 72 | if(pl->params[pl->params_count].governor == NULL) { |
| 73 | return -1; |
| 74 | } |
| 75 | } else { |
| 76 | pl->params[pl->params_count].governor = 0; |
| 77 | } |
| 78 | |
| 79 | pl->params[pl->params_count].argument = strdup(arg); |
| 80 | if(pl->params[pl->params_count].argument) { |
| 81 | pl->params_count++; |
| 82 | return 0; |
| 83 | } else { |
| 84 | if(pl->params[pl->params_count].governor) |
| 85 | asn1p_ref_free(pl->params[pl->params_count].governor); |
| 86 | return -1; |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | asn1p_paramlist_t * |
| 91 | asn1p_paramlist_clone(asn1p_paramlist_t *pl) { |
| 92 | asn1p_paramlist_t *newpl; |
| 93 | |
| 94 | newpl = asn1p_paramlist_new(pl->_lineno); |
| 95 | if(newpl) { |
| 96 | int i; |
| 97 | for(i = 0; i < pl->params_count; i++) { |
| 98 | if(asn1p_paramlist_add_param(newpl, |
| 99 | pl->params[i].governor, |
| 100 | pl->params[i].argument |
| 101 | )) { |
| 102 | asn1p_paramlist_free(newpl); |
| 103 | newpl = NULL; |
| 104 | break; |
| 105 | } |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | return newpl; |
| 110 | } |
| 111 | |