vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 1 | /*- |
vlm | 72425de | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 2 | * Copyright (c) 2003, 2004 Lev Walkin <vlm@lionet.info>. All rights reserved. |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 3 | * Redistribution and modifications are permitted subject to BSD license. |
| 4 | */ |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 5 | #include <asn_internal.h> |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 6 | #include <OCTET_STRING.h> |
| 7 | #include <assert.h> |
| 8 | #include <errno.h> |
| 9 | |
| 10 | /* |
| 11 | * OCTET STRING basic type description. |
| 12 | */ |
| 13 | static ber_tlv_tag_t asn1_DEF_OCTET_STRING_tags[] = { |
| 14 | (ASN_TAG_CLASS_UNIVERSAL | (4 << 2)) |
| 15 | }; |
| 16 | asn1_TYPE_descriptor_t asn1_DEF_OCTET_STRING = { |
| 17 | "OCTET STRING", |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 18 | OCTET_STRING_free, |
| 19 | OCTET_STRING_print, /* non-ascii stuff, generally */ |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 20 | asn_generic_no_constraint, |
| 21 | OCTET_STRING_decode_ber, |
| 22 | OCTET_STRING_encode_der, |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 23 | 0, /* Not implemented yet */ |
| 24 | OCTET_STRING_encode_xer, |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 25 | 0, /* Use generic outmost tag fetcher */ |
| 26 | asn1_DEF_OCTET_STRING_tags, |
| 27 | sizeof(asn1_DEF_OCTET_STRING_tags) |
| 28 | / sizeof(asn1_DEF_OCTET_STRING_tags[0]), |
vlm | 72425de | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 29 | asn1_DEF_OCTET_STRING_tags, /* Same as above */ |
| 30 | sizeof(asn1_DEF_OCTET_STRING_tags) |
| 31 | / sizeof(asn1_DEF_OCTET_STRING_tags[0]), |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 32 | -1, /* Both ways are fine (primitive and constructed) */ |
vlm | e413c12 | 2004-08-20 13:23:42 +0000 | [diff] [blame] | 33 | 0, 0, /* No members */ |
vlm | b42843a | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 34 | 0 /* No specifics */ |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 35 | }; |
| 36 | |
vlm | ef1b4c0 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 37 | #undef _CH_PHASE |
| 38 | #undef NEXT_PHASE |
| 39 | #undef PREV_PHASE |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 40 | #define _CH_PHASE(ctx, inc) do { \ |
| 41 | if(ctx->phase == 0) \ |
| 42 | ctx->step = 0; \ |
| 43 | ctx->phase += inc; \ |
| 44 | } while(0) |
| 45 | #define NEXT_PHASE(ctx) _CH_PHASE(ctx, +1) |
| 46 | #define PREV_PHASE(ctx) _CH_PHASE(ctx, -1) |
| 47 | |
vlm | ef1b4c0 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 48 | #undef ADVANCE |
vlm | d86c925 | 2004-08-25 01:34:11 +0000 | [diff] [blame] | 49 | #define ADVANCE(num_bytes) do { \ |
vlm | b33ed68 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 50 | size_t num = (num_bytes); \ |
vlm | d86c925 | 2004-08-25 01:34:11 +0000 | [diff] [blame] | 51 | buf_ptr = ((char *)buf_ptr) + num; \ |
| 52 | size -= num; \ |
| 53 | consumed_myself += num; \ |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 54 | } while(0) |
| 55 | |
vlm | ef1b4c0 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 56 | #undef RETURN |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 57 | #define RETURN(_code) do { \ |
| 58 | rval.code = _code; \ |
| 59 | rval.consumed = consumed_myself;\ |
| 60 | return rval; \ |
| 61 | } while(0) |
| 62 | |
vlm | ef1b4c0 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 63 | #undef APPEND |
vlm | b42843a | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 64 | #define APPEND(bufptr, bufsize) do { \ |
vlm | cdfdb72 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 65 | size_t _bs = (bufsize); \ |
vlm | b42843a | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 66 | size_t _ns = ctx->step; /* Allocated */ \ |
vlm | cdfdb72 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 67 | if(_ns <= (size_t)(st->size + _bs)) { \ |
vlm | b42843a | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 68 | void *ptr; \ |
vlm | 72425de | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 69 | /* Be nice and round to the memory allocator */ \ |
vlm | b42843a | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 70 | do { _ns = _ns ? _ns<<2 : 16; } \ |
vlm | cdfdb72 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 71 | while(_ns <= (size_t)(st->size + _bs)); \ |
vlm | b42843a | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 72 | ptr = REALLOC(st->buf, _ns); \ |
| 73 | if(ptr) { \ |
vlm | da67468 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 74 | st->buf = (uint8_t *)ptr; \ |
vlm | b42843a | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 75 | ctx->step = _ns; \ |
| 76 | } else { \ |
| 77 | RETURN(RC_FAIL); \ |
| 78 | } \ |
| 79 | } \ |
vlm | cdfdb72 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 80 | memcpy(st->buf + st->size, bufptr, _bs); \ |
| 81 | st->size += _bs; \ |
vlm | b42843a | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 82 | if(st->size < 0) \ |
| 83 | /* Why even care?.. JIC */ \ |
| 84 | RETURN(RC_FAIL); \ |
| 85 | /* Convenient nul-termination */ \ |
| 86 | st->buf[st->size] = '\0'; \ |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 87 | } while(0) |
| 88 | |
| 89 | /* |
| 90 | * The main reason why ASN.1 is still alive is that too much time and effort |
| 91 | * is necessary for learning it more or less adequately, thus creating a gut |
| 92 | * necessity to demonstrate that aquired skill everywhere afterwards. |
| 93 | * No, I am not going to explain what the following stuff is. |
| 94 | */ |
| 95 | struct _stack_el { |
vlm | b33ed68 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 96 | ber_tlv_len_t left; /* What's left to read (or -1) */ |
| 97 | ber_tlv_len_t frame; /* What was planned to read (or -1) */ |
vlm | 72425de | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 98 | int cont_level; /* Depth of subcontainment */ |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 99 | int want_nulls; /* Want null "end of content" octets? */ |
| 100 | int bits_chopped; /* Flag in BIT STRING mode */ |
| 101 | struct _stack_el *prev; |
| 102 | struct _stack_el *next; |
| 103 | }; |
| 104 | struct _stack { |
| 105 | struct _stack_el *tail; |
| 106 | struct _stack_el *cur_ptr; |
| 107 | }; |
| 108 | |
| 109 | static struct _stack_el * |
vlm | b33ed68 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 110 | OS__add_stack_el(struct _stack *st) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 111 | struct _stack_el *nel; |
| 112 | |
vlm | 72425de | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 113 | /* |
| 114 | * Reuse the old stack frame or allocate a new one. |
| 115 | */ |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 116 | if(st->cur_ptr && st->cur_ptr->next) { |
| 117 | nel = st->cur_ptr->next; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 118 | nel->bits_chopped = 0; |
vlm | 72425de | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 119 | /* Retain nel->cont_level, it's correct. */ |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 120 | } else { |
vlm | da67468 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 121 | (void *)nel = CALLOC(1, sizeof(struct _stack_el)); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 122 | if(nel == NULL) |
| 123 | return NULL; |
| 124 | |
| 125 | if(st->tail) { |
vlm | 72425de | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 126 | /* Increase a subcontainment depth */ |
| 127 | nel->cont_level = st->tail->cont_level + 1; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 128 | st->tail->next = nel; |
| 129 | } |
| 130 | nel->prev = st->tail; |
| 131 | st->tail = nel; |
| 132 | } |
| 133 | |
| 134 | st->cur_ptr = nel; |
| 135 | |
| 136 | return nel; |
| 137 | } |
| 138 | |
| 139 | static struct _stack * |
| 140 | _new_stack() { |
| 141 | struct _stack *st; |
vlm | da67468 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 142 | (void *)st = CALLOC(1, sizeof(struct _stack)); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 143 | if(st == NULL) |
| 144 | return NULL; |
| 145 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 146 | return st; |
| 147 | } |
| 148 | |
| 149 | /* |
| 150 | * Decode OCTET STRING type. |
| 151 | */ |
| 152 | ber_dec_rval_t |
| 153 | OCTET_STRING_decode_ber(asn1_TYPE_descriptor_t *td, |
| 154 | void **os_structure, void *buf_ptr, size_t size, int tag_mode) { |
vlm | da67468 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 155 | OCTET_STRING_t *st = (OCTET_STRING_t *)*os_structure; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 156 | ber_dec_rval_t rval; |
| 157 | ber_dec_ctx_t *ctx; |
| 158 | ssize_t consumed_myself = 0; |
| 159 | struct _stack *stck; /* A stack structure */ |
| 160 | struct _stack_el *sel; /* Stack element */ |
| 161 | int tlv_constr; |
vlm | 72425de | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 162 | enum type_type_e { |
| 163 | _TT_GENERIC = 0, /* Just a random OCTET STRING */ |
| 164 | _TT_BIT_STRING = -1, /* BIT STRING type, a special case */ |
| 165 | _TT_ANY = 1, /* ANY type, a special case too */ |
| 166 | } type_type |
| 167 | = (enum type_type_e)(int)td->specifics; /* An ugly hack */ |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 168 | |
vlm | ef1b4c0 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 169 | ASN_DEBUG("Decoding %s as %s (frame %ld)", |
| 170 | td->name, |
| 171 | (type_type == _TT_GENERIC) ? "OCTET STRING" : "OS-SpecialCase", |
| 172 | (long)size); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 173 | |
| 174 | /* |
| 175 | * Create the string if does not exist. |
| 176 | */ |
| 177 | if(st == NULL) { |
vlm | da67468 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 178 | (void *)st = *os_structure = CALLOC(1, sizeof(*st)); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 179 | if(st == NULL) |
| 180 | RETURN(RC_FAIL); |
| 181 | } |
| 182 | |
| 183 | /* Restore parsing context */ |
| 184 | ctx = &st->_ber_dec_ctx; |
| 185 | |
| 186 | switch(ctx->phase) { |
| 187 | case 0: |
| 188 | /* |
| 189 | * Check tags. |
| 190 | */ |
| 191 | rval = ber_check_tags(td, ctx, |
| 192 | buf_ptr, size, tag_mode, |
| 193 | &ctx->left, &tlv_constr); |
| 194 | if(rval.code != RC_OK) { |
| 195 | RETURN(rval.code); |
| 196 | } |
| 197 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 198 | if(tlv_constr) { |
| 199 | /* |
| 200 | * Complex operation, requires stack of expectations. |
| 201 | */ |
| 202 | ctx->ptr = _new_stack(); |
| 203 | if(ctx->ptr) { |
vlm | da67468 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 204 | (void *)stck = ctx->ptr; |
vlm | 72425de | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 205 | if(type_type == _TT_BIT_STRING) { |
vlm | cdfdb72 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 206 | /* Number of meaningless tail bits */ |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 207 | APPEND("\0", 1); |
| 208 | } |
| 209 | } else { |
| 210 | RETURN(RC_FAIL); |
| 211 | } |
| 212 | } else { |
| 213 | /* |
| 214 | * Jump into stackless primitive decoding. |
| 215 | */ |
| 216 | _CH_PHASE(ctx, 3); |
vlm | 72425de | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 217 | if(type_type == _TT_ANY) |
| 218 | APPEND(buf_ptr, rval.consumed); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 219 | ADVANCE(rval.consumed); |
| 220 | goto phase3; |
| 221 | } |
| 222 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 223 | NEXT_PHASE(ctx); |
| 224 | /* Fall through */ |
| 225 | case 1: |
| 226 | phase1: |
| 227 | /* |
| 228 | * Fill the stack with expectations. |
| 229 | */ |
vlm | da67468 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 230 | (void *)stck = ctx->ptr; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 231 | sel = stck->cur_ptr; |
| 232 | do { |
| 233 | ber_tlv_tag_t tlv_tag; |
| 234 | ber_tlv_len_t tlv_len; |
vlm | 72425de | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 235 | ber_tlv_tag_t expected_tag; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 236 | ssize_t tl, ll; |
vlm | b33ed68 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 237 | ssize_t Left = ((!sel||sel->left==-1||sel->left >= size) |
| 238 | ?size:sel->left); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 239 | |
vlm | b33ed68 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 240 | |
| 241 | ASN_DEBUG("fetch tag(size=%d,L=%d), %sstack, left=%d, want0=%d", |
| 242 | (int)size, Left, sel?"":"!", |
vlm | cdfdb72 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 243 | sel?sel->left:0, sel?sel->want_nulls:0); |
vlm | b33ed68 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 244 | tl = ber_fetch_tag(buf_ptr, Left, &tlv_tag); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 245 | switch(tl) { |
| 246 | case -1: RETURN(RC_FAIL); |
| 247 | case 0: RETURN(RC_WMORE); |
| 248 | } |
| 249 | |
| 250 | tlv_constr = BER_TLV_CONSTRUCTED(buf_ptr); |
| 251 | |
| 252 | ll = ber_fetch_length(tlv_constr, |
vlm | b33ed68 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 253 | (char *)buf_ptr + tl, Left - tl, &tlv_len); |
vlm | cdfdb72 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 254 | ASN_DEBUG("Got tag=%s, tc=%d, size=%d, tl=%d, len=%d, ll=%d, {%d, %d}", |
| 255 | ber_tlv_tag_string(tlv_tag), tlv_constr, |
vlm | b33ed68 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 256 | (int)Left, tl, tlv_len, ll, |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 257 | ((uint8_t *)buf_ptr)[0], |
| 258 | ((uint8_t *)buf_ptr)[1]); |
| 259 | switch(ll) { |
| 260 | case -1: RETURN(RC_FAIL); |
| 261 | case 0: RETURN(RC_WMORE); |
| 262 | } |
| 263 | |
vlm | cdfdb72 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 264 | if(sel && sel->want_nulls |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 265 | && ((uint8_t *)buf_ptr)[0] == 0 |
| 266 | && ((uint8_t *)buf_ptr)[1] == 0) |
| 267 | { |
vlm | cdfdb72 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 268 | ADVANCE(2); |
vlm | 72425de | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 269 | if(type_type == _TT_ANY) APPEND("\0\0", 2); |
vlm | cdfdb72 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 270 | |
| 271 | ASN_DEBUG("Eat EOC; wn=%d--", sel->want_nulls); |
| 272 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 273 | sel->want_nulls--; |
| 274 | if(sel->want_nulls == 0) { |
| 275 | /* Move to the next expectation */ |
| 276 | sel = stck->cur_ptr = sel->prev; |
vlm | cdfdb72 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 277 | if(sel == NULL) |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 278 | break; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 279 | } |
vlm | cdfdb72 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 280 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 281 | if(sel->want_nulls) { |
| 282 | /* |
| 283 | * Simulate while(TRUE) for this loop. |
| 284 | * This is necessary to fetch the next |
vlm | cdfdb72 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 285 | * expectation after current "end of content", |
| 286 | * for which tlv_constr is 0. |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 287 | */ |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 288 | tlv_constr = 1; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 289 | } |
vlm | cdfdb72 | 2004-09-04 04:44:50 +0000 | [diff] [blame] | 290 | |
| 291 | continue; |
vlm | 72425de | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 292 | } |
| 293 | |
| 294 | /* |
| 295 | * Set up expected tags, |
| 296 | * depending on ASN.1 type being decoded. |
| 297 | */ |
| 298 | switch(type_type) { |
| 299 | case _TT_BIT_STRING: |
| 300 | /* X.690: 8.6.4.1, NOTE 2 */ |
| 301 | /* Fall through */ |
| 302 | case _TT_GENERIC: |
| 303 | default: |
| 304 | if(sel) { |
| 305 | int level = sel->cont_level; |
| 306 | if(level < td->all_tags_count) { |
| 307 | expected_tag = td->all_tags[level]; |
| 308 | break; |
| 309 | } else if(td->all_tags_count) { |
| 310 | expected_tag = td->all_tags |
| 311 | [td->all_tags_count - 1]; |
| 312 | break; |
| 313 | } |
| 314 | /* else, Fall through */ |
| 315 | } |
| 316 | /* Fall through */ |
| 317 | case _TT_ANY: |
| 318 | expected_tag = tlv_tag; |
| 319 | break; |
| 320 | } |
| 321 | |
| 322 | |
| 323 | if(tlv_tag != expected_tag) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 324 | char buf[2][32]; |
| 325 | ber_tlv_tag_snprint(tlv_tag, |
| 326 | buf[0], sizeof(buf[0])); |
| 327 | ber_tlv_tag_snprint(td->tags[td->tags_count-1], |
| 328 | buf[1], sizeof(buf[1])); |
| 329 | ASN_DEBUG("Tag does not match expectation: %s != %s", |
| 330 | buf[0], buf[1]); |
| 331 | RETURN(RC_FAIL); |
| 332 | } |
| 333 | |
| 334 | /* |
vlm | b33ed68 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 335 | * Consult with the old expectation. |
| 336 | * Check that it knows what we are doing here, and how much. |
| 337 | */ |
| 338 | if(sel && sel->left != -1) { |
| 339 | if(sel->left < (tl + ll)) |
| 340 | RETURN(RC_FAIL); |
| 341 | sel->left -= (tl + ll); |
| 342 | if(sel->left < tlv_len) |
| 343 | RETURN(RC_FAIL); |
| 344 | } |
| 345 | |
| 346 | |
| 347 | /* |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 348 | * Append a new expectation. |
| 349 | */ |
vlm | b33ed68 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 350 | sel = OS__add_stack_el(stck); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 351 | if(sel) { |
| 352 | sel->want_nulls = (tlv_len==-1); |
vlm | b33ed68 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 353 | sel->frame = sel->left = tlv_len; |
| 354 | ASN_DEBUG("+EXPECT2 frame=%d wn=%d, clvl=%d", |
| 355 | sel->frame, sel->want_nulls, sel->cont_level); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 356 | } else { |
| 357 | RETURN(RC_FAIL); |
| 358 | } |
| 359 | |
vlm | 72425de | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 360 | if(type_type == _TT_ANY) APPEND(buf_ptr, tl + ll); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 361 | ADVANCE(tl+ll); |
| 362 | } while(tlv_constr); |
| 363 | if(sel == NULL) { |
| 364 | /* Finished operation, "phase out" */ |
vlm | 72425de | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 365 | ASN_DEBUG("Phase out"); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 366 | _CH_PHASE(ctx, +3); |
| 367 | break; |
| 368 | } |
| 369 | |
| 370 | NEXT_PHASE(ctx); |
| 371 | /* Fall through */ |
| 372 | case 2: |
vlm | da67468 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 373 | (void *)stck = ctx->ptr; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 374 | sel = stck->cur_ptr; |
| 375 | ASN_DEBUG("Phase 2: Need %ld bytes, size=%ld", |
| 376 | (long)sel->left, (long)size); |
| 377 | { |
| 378 | ber_tlv_len_t len; |
| 379 | |
| 380 | assert(sel->left >= 0); |
| 381 | |
vlm | c519061 | 2004-08-18 04:53:32 +0000 | [diff] [blame] | 382 | len = ((ber_tlv_len_t)size < sel->left) |
| 383 | ? (ber_tlv_len_t)size : sel->left; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 384 | if(len > 0) { |
vlm | 72425de | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 385 | if(type_type == _TT_BIT_STRING |
| 386 | && sel->bits_chopped == 0) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 387 | /* |
| 388 | * Finalize the previous chunk: |
| 389 | * strip down unused bits. |
| 390 | */ |
| 391 | st->buf[st->size-1] &= 0xff << st->buf[0]; |
| 392 | |
vlm | 1ff928d | 2004-08-11 08:10:13 +0000 | [diff] [blame] | 393 | APPEND(((char *)buf_ptr+1), (len - 1)); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 394 | st->buf[0] = *(uint8_t *)buf_ptr; |
| 395 | sel->bits_chopped = 1; |
| 396 | } else { |
| 397 | APPEND(buf_ptr, len); |
| 398 | } |
| 399 | ADVANCE(len); |
| 400 | sel->left -= len; |
| 401 | } |
| 402 | |
vlm | b33ed68 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 403 | if(sel->left) |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 404 | RETURN(RC_WMORE); |
vlm | b33ed68 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 405 | |
| 406 | while(sel->left == 0) { |
| 407 | ASN_DEBUG("sel %p, l=%d, f=%d, %p->l=%d p->f=%d\n", |
| 408 | sel, sel->left, sel->frame, |
| 409 | sel->prev, |
| 410 | sel->prev?sel->prev->left:0, |
| 411 | sel->prev?sel->prev->frame:0 |
| 412 | ); |
| 413 | if(sel->prev) { |
| 414 | if(sel->prev->left != -1) { |
| 415 | if(sel->prev->left < sel->frame) |
| 416 | RETURN(RC_FAIL); |
| 417 | sel->prev->left -= sel->frame; |
| 418 | } |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 419 | sel = stck->cur_ptr = sel->prev; |
vlm | b33ed68 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 420 | if(sel->left) { |
| 421 | PREV_PHASE(ctx); |
| 422 | goto phase1; |
| 423 | } |
| 424 | } else { |
| 425 | break; |
| 426 | } |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 427 | } |
| 428 | } |
| 429 | break; |
| 430 | case 3: |
| 431 | phase3: |
| 432 | /* |
| 433 | * Primitive form, no stack required. |
| 434 | */ |
vlm | b42843a | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 435 | if(size < (size_t)ctx->left) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 436 | APPEND(buf_ptr, size); |
| 437 | ctx->left -= size; |
| 438 | ADVANCE(size); |
| 439 | RETURN(RC_WMORE); |
| 440 | } else { |
| 441 | APPEND(buf_ptr, ctx->left); |
| 442 | ADVANCE(ctx->left); |
| 443 | ctx->left = 0; |
| 444 | |
| 445 | NEXT_PHASE(ctx); |
| 446 | } |
| 447 | break; |
| 448 | } |
| 449 | |
| 450 | /* |
| 451 | * BIT STRING-specific processing. |
| 452 | */ |
vlm | 72425de | 2004-09-13 08:31:01 +0000 | [diff] [blame] | 453 | if(type_type == _TT_BIT_STRING && st->size >= 2) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 454 | /* Finalize BIT STRING: zero out unused bits. */ |
| 455 | st->buf[st->size-1] &= 0xff << st->buf[0]; |
| 456 | } |
| 457 | |
| 458 | ASN_DEBUG("Took %d bytes to encode %s: [%s]:%d", |
vlm | b33ed68 | 2004-09-24 20:57:41 +0000 | [diff] [blame] | 459 | consumed_myself, td->name, |
| 460 | (type_type == _TT_GENERIC) ? (char *)st->buf : "", st->size); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 461 | |
| 462 | rval.code = RC_OK; |
| 463 | rval.consumed = consumed_myself; |
| 464 | |
| 465 | return rval; |
| 466 | } |
| 467 | |
| 468 | /* |
| 469 | * Encode OCTET STRING type using DER. |
| 470 | */ |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 471 | asn_enc_rval_t |
vlm | 3e69302 | 2004-09-02 12:57:25 +0000 | [diff] [blame] | 472 | OCTET_STRING_encode_der(asn1_TYPE_descriptor_t *td, void *ptr, |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 473 | int tag_mode, ber_tlv_tag_t tag, |
| 474 | asn_app_consume_bytes_f *cb, void *app_key) { |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 475 | asn_enc_rval_t erval; |
vlm | da67468 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 476 | OCTET_STRING_t *st = (OCTET_STRING_t *)ptr; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 477 | int add_byte = 0; |
vlm | 7e66aa8 | 2004-09-02 12:11:47 +0000 | [diff] [blame] | 478 | int is_bit_str = (td->specifics == (void *)-1); |
vlm | 3e69302 | 2004-09-02 12:57:25 +0000 | [diff] [blame] | 479 | int is_ANY_type = (td->specifics == (void *)1); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 480 | |
| 481 | ASN_DEBUG("%s %s as OCTET STRING", |
vlm | 3e69302 | 2004-09-02 12:57:25 +0000 | [diff] [blame] | 482 | cb?"Estimating":"Encoding", td->name); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 483 | |
| 484 | /* |
| 485 | * Canonicalize BIT STRING. |
| 486 | */ |
vlm | 7e66aa8 | 2004-09-02 12:11:47 +0000 | [diff] [blame] | 487 | if(is_bit_str && st->buf) { |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 488 | switch(st->size) { |
| 489 | case 0: add_byte = 1; break; |
| 490 | case 1: st->buf[0] = 0; break; |
| 491 | default: |
| 492 | /* Finalize BIT STRING: zero out unused bits. */ |
| 493 | st->buf[st->size-1] &= 0xff << st->buf[0]; |
| 494 | } |
| 495 | } |
| 496 | |
vlm | 7e66aa8 | 2004-09-02 12:11:47 +0000 | [diff] [blame] | 497 | if(is_ANY_type) { |
| 498 | erval.encoded = 0; |
| 499 | } else { |
vlm | 3e69302 | 2004-09-02 12:57:25 +0000 | [diff] [blame] | 500 | erval.encoded = der_write_tags(td, st->size + add_byte, |
vlm | 7e66aa8 | 2004-09-02 12:11:47 +0000 | [diff] [blame] | 501 | tag_mode, tag, cb, app_key); |
| 502 | if(erval.encoded == -1) { |
vlm | 3e69302 | 2004-09-02 12:57:25 +0000 | [diff] [blame] | 503 | erval.failed_type = td; |
vlm | 7e66aa8 | 2004-09-02 12:11:47 +0000 | [diff] [blame] | 504 | erval.structure_ptr = ptr; |
| 505 | return erval; |
| 506 | } |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 507 | } |
| 508 | |
| 509 | if(cb) { |
| 510 | uint8_t zero; |
| 511 | uint8_t *buf; |
| 512 | int size; |
| 513 | ssize_t ret; |
| 514 | |
| 515 | /* BIT STRING-aware handling */ |
| 516 | if(add_byte) { |
| 517 | zero = 0; |
| 518 | buf = &zero; |
| 519 | size = 1; |
| 520 | } else if(st->buf) { |
| 521 | buf = st->buf; |
| 522 | size = st->size; |
| 523 | } else { |
| 524 | assert(st->size == 0); |
| 525 | buf = 0; /* Not used */ |
| 526 | size = 0; |
| 527 | } |
| 528 | |
| 529 | if(size) { |
| 530 | ret = cb(buf, size, app_key); |
| 531 | if(ret == -1) { |
| 532 | erval.encoded = -1; |
vlm | 3e69302 | 2004-09-02 12:57:25 +0000 | [diff] [blame] | 533 | erval.failed_type = td; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 534 | erval.structure_ptr = ptr; |
| 535 | return erval; |
| 536 | } |
| 537 | } |
| 538 | } |
| 539 | |
| 540 | erval.encoded += st->size + add_byte; |
| 541 | |
| 542 | return erval; |
| 543 | } |
| 544 | |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 545 | asn_enc_rval_t |
| 546 | OCTET_STRING_encode_xer(asn1_TYPE_descriptor_t *td, void *sptr, |
| 547 | int ilevel, enum xer_encoder_flags_e flags, |
| 548 | asn_app_consume_bytes_f *cb, void *app_key) { |
| 549 | static const char *h2c = "0123456789ABCDEF"; |
| 550 | const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr; |
| 551 | asn_enc_rval_t er; |
| 552 | char scratch[16 * 3 + 4]; |
| 553 | char *p = scratch; |
| 554 | uint8_t *buf; |
| 555 | uint8_t *end; |
| 556 | size_t i; |
| 557 | |
| 558 | if(!st || !st->buf) { |
| 559 | er.encoded = -1; |
| 560 | er.failed_type = td; |
| 561 | er.structure_ptr = sptr; |
| 562 | return er; |
| 563 | } |
| 564 | |
| 565 | er.encoded = 0; |
| 566 | |
| 567 | /* |
| 568 | * Dump the contents of the buffer in hexadecimal. |
| 569 | */ |
| 570 | buf = st->buf; |
| 571 | end = buf + st->size; |
| 572 | if(flags & XER_F_CANONICAL) { |
| 573 | char *scend = scratch + (sizeof(scratch) - 2); |
| 574 | for(; buf < end; buf++) { |
| 575 | if(p >= scend) { |
| 576 | _ASN_CALLBACK(scratch, p - scratch); |
| 577 | er.encoded += p - scratch; |
| 578 | p = scratch; |
| 579 | } |
| 580 | *p++ = h2c[(*buf >> 4) & 0x0F]; |
| 581 | *p++ = h2c[*buf & 0x0F]; |
| 582 | } |
vlm | ef1b4c0 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 583 | |
| 584 | _ASN_CALLBACK(scratch, p-scratch); /* Dump the rest */ |
| 585 | er.encoded += p - scratch; |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 586 | } else { |
| 587 | for(i = 0; buf < end; buf++, i++) { |
| 588 | if(!(i % 16) && (i || st->size > 16)) { |
| 589 | _ASN_CALLBACK(scratch, p-scratch); |
| 590 | er.encoded += (p-scratch); |
| 591 | p = scratch; |
| 592 | _i_ASN_TEXT_INDENT(1, ilevel); |
| 593 | } |
| 594 | *p++ = h2c[(*buf >> 4) & 0x0F]; |
| 595 | *p++ = h2c[*buf & 0x0F]; |
| 596 | *p++ = 0x20; |
| 597 | } |
vlm | ef1b4c0 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 598 | if(p - scratch) { |
| 599 | p--; /* Remove the tail space */ |
| 600 | _ASN_CALLBACK(scratch, p-scratch); /* Dump the rest */ |
| 601 | er.encoded += p - scratch; |
| 602 | if(st->size > 16) |
| 603 | _i_ASN_TEXT_INDENT(1, ilevel-1); |
| 604 | } |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 605 | } |
| 606 | |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 607 | return er; |
| 608 | } |
| 609 | |
| 610 | asn_enc_rval_t |
| 611 | OCTET_STRING_encode_xer_ascii(asn1_TYPE_descriptor_t *td, void *sptr, |
| 612 | int ilevel, enum xer_encoder_flags_e flags, |
| 613 | asn_app_consume_bytes_f *cb, void *app_key) { |
| 614 | const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr; |
| 615 | asn_enc_rval_t er; |
| 616 | |
| 617 | (void)ilevel; /* Unused argument */ |
| 618 | (void)flags; /* Unused argument */ |
| 619 | |
| 620 | if(!st || !st->buf) |
| 621 | _ASN_ENCODE_FAILED; |
| 622 | |
| 623 | _ASN_CALLBACK(st->buf, st->size); |
| 624 | er.encoded = st->size; |
| 625 | |
| 626 | return er; |
| 627 | } |
| 628 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 629 | int |
| 630 | OCTET_STRING_print(asn1_TYPE_descriptor_t *td, const void *sptr, int ilevel, |
| 631 | asn_app_consume_bytes_f *cb, void *app_key) { |
vlm | 1ff928d | 2004-08-11 08:10:13 +0000 | [diff] [blame] | 632 | static const char *h2c = "0123456789ABCDEF"; |
vlm | da67468 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 633 | const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 634 | char scratch[16 * 3 + 4]; |
| 635 | char *p = scratch; |
| 636 | uint8_t *buf; |
| 637 | uint8_t *end; |
| 638 | size_t i; |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 639 | int lvl; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 640 | |
vlm | b42843a | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 641 | (void)td; /* Unused argument */ |
| 642 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 643 | if(!st || !st->buf) return cb("<absent>", 8, app_key); |
| 644 | |
| 645 | /* |
| 646 | * Dump the contents of the buffer in hexadecimal. |
| 647 | */ |
| 648 | buf = st->buf; |
| 649 | end = buf + st->size; |
| 650 | for(i = 0; buf < end; buf++, i++) { |
| 651 | if(!(i % 16) && (i || st->size > 16)) { |
| 652 | if(cb(scratch, p - scratch, app_key) |
| 653 | || cb("\n", 1, app_key)) |
| 654 | return -1; |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 655 | for(lvl = 0; lvl < ilevel; lvl++) |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 656 | cb(" ", 1, app_key); |
| 657 | p = scratch; |
| 658 | } |
| 659 | *p++ = h2c[(*buf >> 4) & 0x0F]; |
| 660 | *p++ = h2c[*buf & 0x0F]; |
vlm | 39ba4c4 | 2004-09-22 16:06:28 +0000 | [diff] [blame] | 661 | *p++ = 0x20; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 662 | } |
| 663 | |
vlm | ef1b4c0 | 2004-09-23 22:06:26 +0000 | [diff] [blame] | 664 | if(p > scratch) { |
| 665 | p--; /* Remove the tail space */ |
| 666 | if(cb(scratch, p - scratch, app_key)) |
| 667 | return -1; |
| 668 | } |
| 669 | |
| 670 | return 0; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 671 | } |
| 672 | |
| 673 | int |
| 674 | OCTET_STRING_print_ascii(asn1_TYPE_descriptor_t *td, const void *sptr, |
| 675 | int ilevel, asn_app_consume_bytes_f *cb, void *app_key) { |
vlm | da67468 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 676 | const OCTET_STRING_t *st = (const OCTET_STRING_t *)sptr; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 677 | |
vlm | b42843a | 2004-06-05 08:17:50 +0000 | [diff] [blame] | 678 | (void)td; /* Unused argument */ |
| 679 | (void)ilevel; /* Unused argument */ |
| 680 | |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 681 | if(st && st->buf) { |
| 682 | return cb(st->buf, st->size, app_key); |
| 683 | } else { |
| 684 | return cb("<absent>", 8, app_key); |
| 685 | } |
| 686 | } |
| 687 | |
| 688 | void |
| 689 | OCTET_STRING_free(asn1_TYPE_descriptor_t *td, void *sptr, int contents_only) { |
vlm | da67468 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 690 | OCTET_STRING_t *st = (OCTET_STRING_t *)sptr; |
| 691 | struct _stack *stck = (struct _stack *)st->_ber_dec_ctx.ptr; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 692 | |
| 693 | if(!td || !st) |
| 694 | return; |
| 695 | |
| 696 | ASN_DEBUG("Freeing %s as OCTET STRING", td->name); |
| 697 | |
| 698 | if(st->buf) { |
| 699 | FREEMEM(st->buf); |
| 700 | } |
| 701 | |
| 702 | /* |
| 703 | * Remove decode-time stack. |
| 704 | */ |
| 705 | if(stck) { |
| 706 | while(stck->tail) { |
| 707 | struct _stack_el *sel = stck->tail; |
| 708 | stck->tail = sel->prev; |
| 709 | FREEMEM(sel); |
| 710 | } |
| 711 | FREEMEM(stck); |
| 712 | } |
| 713 | |
| 714 | if(!contents_only) { |
| 715 | FREEMEM(st); |
| 716 | } |
| 717 | } |
| 718 | |
| 719 | /* |
| 720 | * Conversion routines. |
| 721 | */ |
| 722 | int |
| 723 | OCTET_STRING_fromBuf(OCTET_STRING_t *st, const char *str, int len) { |
| 724 | void *buf; |
| 725 | |
| 726 | if(st == 0 || (str == 0 && len)) { |
| 727 | errno = EINVAL; |
| 728 | return -1; |
| 729 | } |
| 730 | |
| 731 | /* |
| 732 | * Clear the OCTET STRING. |
| 733 | */ |
| 734 | if(str == NULL) { |
| 735 | if(st->buf) |
| 736 | FREEMEM(st->buf); |
| 737 | st->size = 0; |
| 738 | return 0; |
| 739 | } |
| 740 | |
| 741 | /* Determine the original string size, if not explicitly given */ |
| 742 | if(len < 0) |
| 743 | len = strlen(str); |
| 744 | |
| 745 | /* Allocate and fill the memory */ |
| 746 | buf = MALLOC(len + 1); |
| 747 | if(buf == NULL) { |
| 748 | return -1; |
| 749 | } else { |
vlm | da67468 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 750 | st->buf = (uint8_t *)buf; |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 751 | st->size = len; |
| 752 | } |
| 753 | |
| 754 | memcpy(buf, str, len); |
| 755 | st->buf[st->size] = '\0'; /* Couldn't use memcpy(len+1)! */ |
| 756 | |
| 757 | return 0; |
| 758 | } |
| 759 | |
| 760 | OCTET_STRING_t * |
| 761 | OCTET_STRING_new_fromBuf(const char *str, int len) { |
| 762 | OCTET_STRING_t *st; |
| 763 | |
vlm | da67468 | 2004-08-11 09:07:36 +0000 | [diff] [blame] | 764 | (void *)st = CALLOC(1, sizeof(*st)); |
vlm | fa67ddc | 2004-06-03 03:38:44 +0000 | [diff] [blame] | 765 | if(st && str && OCTET_STRING_fromBuf(st, str, len)) { |
| 766 | free(st); |
| 767 | st = NULL; |
| 768 | } |
| 769 | |
| 770 | return st; |
| 771 | } |
| 772 | |