/* * str2host.c * * conversion routines from the presentation format * to the host format * * a Net::DNS like library for C * * (c) NLnet Labs, 2004-2006 * * See the file LICENSE for the license */ #include #include #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_ARPA_INET_H #include #endif #include #include #ifdef HAVE_NETDB_H #include #endif #include #ifdef HAVE_SYS_PARAM_H #include #endif ldns_status ldns_str2rdf_int16(ldns_rdf **rd, const char *shortstr) { char *end = NULL; uint16_t *r; r = LDNS_MALLOC(uint16_t); if(!r) return LDNS_STATUS_MEM_ERR; *r = htons((uint16_t)strtol((char *)shortstr, &end, 10)); if(*end != 0) { LDNS_FREE(r); return LDNS_STATUS_INVALID_INT; } else { *rd = ldns_rdf_new_frm_data( LDNS_RDF_TYPE_INT16, sizeof(uint16_t), r); LDNS_FREE(r); return *rd?LDNS_STATUS_OK:LDNS_STATUS_MEM_ERR; } } ldns_status ldns_str2rdf_time(ldns_rdf **rd, const char *time) { /* convert a time YYYYDDMMHHMMSS to wireformat */ uint16_t *r = NULL; struct tm tm; uint32_t l; char *end; /* Try to scan the time... */ r = (uint16_t*)LDNS_MALLOC(uint32_t); if(!r) return LDNS_STATUS_MEM_ERR; memset(&tm, 0, sizeof(tm)); if (strlen(time) == 14 && sscanf(time, "%4d%2d%2d%2d%2d%2d", &tm.tm_year, &tm.tm_mon, &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec) == 6 ) { tm.tm_year -= 1900; tm.tm_mon--; /* Check values */ if (tm.tm_year < 70) { goto bad_format; } if (tm.tm_mon < 0 || tm.tm_mon > 11) { goto bad_format; } if (tm.tm_mday < 1 || tm.tm_mday > 31) { goto bad_format; } if (tm.tm_hour < 0 || tm.tm_hour > 23) { goto bad_format; } if (tm.tm_min < 0 || tm.tm_min > 59) { goto bad_format; } if (tm.tm_sec < 0 || tm.tm_sec > 59) { goto bad_format; } l = htonl(mktime_from_utc(&tm)); memcpy(r, &l, sizeof(uint32_t)); *rd = ldns_rdf_new_frm_data( LDNS_RDF_TYPE_TIME, sizeof(uint32_t), r); LDNS_FREE(r); return *rd?LDNS_STATUS_OK:LDNS_STATUS_MEM_ERR; } else { /* handle it as 32 bits timestamp */ l = htonl((uint32_t)strtol((char*)time, &end, 10)); if(*end != 0) { LDNS_FREE(r); return LDNS_STATUS_ERR; } else { memcpy(r, &l, sizeof(uint32_t)); *rd = ldns_rdf_new_frm_data( LDNS_RDF_TYPE_INT32, sizeof(uint32_t), r); LDNS_FREE(r); return *rd?LDNS_STATUS_OK:LDNS_STATUS_MEM_ERR; } } bad_format: LDNS_FREE(r); return LDNS_STATUS_INVALID_TIME; } ldns_status ldns_str2rdf_nsec3_salt(ldns_rdf **rd, const char *salt_str) { uint8_t salt_length; int c; int salt_length_str; uint8_t *salt; uint8_t *data; if(rd == NULL) { return LDNS_STATUS_NULL; } salt_length_str = (int)strlen(salt_str); if (salt_length_str == 1 && salt_str[0] == '-') { salt_length_str = 0; } else if (salt_length_str % 2 != 0) { return LDNS_STATUS_INVALID_HEX; } if (salt_length_str > 512) { return LDNS_STATUS_INVALID_HEX; } salt = LDNS_XMALLOC(uint8_t, salt_length_str / 2); if(!salt) { return LDNS_STATUS_MEM_ERR; } for (c = 0; c < salt_length_str; c += 2) { if (isxdigit((int) salt_str[c]) && isxdigit((int) salt_str[c+1])) { salt[c/2] = (uint8_t) ldns_hexdigit_to_int(salt_str[c]) * 16 + ldns_hexdigit_to_int(salt_str[c+1]); } else { LDNS_FREE(salt); return LDNS_STATUS_INVALID_HEX; } } salt_length = (uint8_t) (salt_length_str / 2); data = LDNS_XMALLOC(uint8_t, 1 + salt_length); if(!data) { LDNS_FREE(salt); return LDNS_STATUS_MEM_ERR; } data[0] = salt_length; memcpy(&data[1], salt, salt_length); *rd = ldns_rdf_new_frm_data(LDNS_RDF_TYPE_NSEC3_SALT, 1 + salt_length, data); LDNS_FREE(data); LDNS_FREE(salt); return *rd?LDNS_STATUS_OK:LDNS_STATUS_MEM_ERR; } ldns_status ldns_str2rdf_period(ldns_rdf **rd,const char *period) { uint32_t p; const char *end; /* Allocate required space... */ p = ldns_str2period(period, &end); if (*end != 0) { return LDNS_STATUS_ERR; } else { p = (uint32_t) htonl(p); *rd = ldns_rdf_new_frm_data( LDNS_RDF_TYPE_PERIOD, sizeof(uint32_t), &p); } return *rd?LDNS_STATUS_OK:LDNS_STATUS_MEM_ERR; } ldns_status ldns_str2rdf_int32(ldns_rdf **rd, const char *longstr) { char *end; uint16_t *r = NULL; uint32_t l; r = (uint16_t*)LDNS_MALLOC(uint32_t); if(!r) return LDNS_STATUS_MEM_ERR; errno = 0; /* must set to zero before call, note race condition on errno */ if(*longstr == '-') l = htonl((uint32_t)strtol((char*)longstr, &end, 10)); else l = htonl((uint32_t)strtoul((char*)longstr, &end, 10)); if(*end != 0) { LDNS_FREE(r); return LDNS_STATUS_ERR; } else { if (errno == ERANGE) { LDNS_FREE(r); return LDNS_STATUS_SYNTAX_INTEGER_OVERFLOW; } memcpy(r, &l, sizeof(uint32_t)); *rd = ldns_rdf_new_frm_data( LDNS_RDF_TYPE_INT32, sizeof(uint32_t), r); LDNS_FREE(r); return *rd?LDNS_STATUS_OK:LDNS_STATUS_MEM_ERR; } } ldns_status ldns_str2rdf_int8(ldns_rdf **rd, const char *bytestr) { char *end; uint8_t *r = NULL; r = LDNS_MALLOC(uint8_t); if(!r) return LDNS_STATUS_MEM_ERR; *r = (uint8_t)strtol((char*)bytestr, &end, 10); if(*end != 0) { LDNS_FREE(r); return LDNS_STATUS_ERR; } else { *rd = ldns_rdf_new_frm_data( LDNS_RDF_TYPE_INT8, sizeof(uint8_t), r); LDNS_FREE(r); return *rd?LDNS_STATUS_OK:LDNS_STATUS_MEM_ERR; } } /* * Checks whether the escaped value at **s is an octal value or * a 'normally' escaped character (and not eos) * * The string pointer at *s is increased by either 0 (on error), 1 (on * normal escapes), or 3 (on octals) * * Returns the number of bytes read from the escaped string, or * 0 on error */ static int parse_escape(uint8_t *s, uint8_t *q) { uint8_t val; if (strlen((char *)s) > 3 && isdigit((int) s[1]) && isdigit((int) s[2]) && isdigit((int) s[3])) { /* cast this so it fits */ val = (uint8_t) ldns_hexdigit_to_int((char) s[1]) * 100 + ldns_hexdigit_to_int((char) s[2]) * 10 + ldns_hexdigit_to_int((char) s[3]); *q = val; return 3; } else { s++; if (*s == '\0' || isdigit((int) *s)) { /* apparently the string terminator * or a digit has been escaped... */ return 0; } *q = *s; return 1; } } /* * No special care is taken, all dots are translated into * label seperators. * Could be made more efficient....we do 3 memcpy's in total... */ ldns_status ldns_str2rdf_dname(ldns_rdf **d, const char *str) { size_t len; int esc; uint8_t *s, *q, *pq, label_len; uint8_t buf[LDNS_MAX_DOMAINLEN + 1]; *d = NULL; len = strlen((char*)str); /* octet representation can make strings a lot longer than actual length */ if (len > LDNS_MAX_DOMAINLEN * 4) { return LDNS_STATUS_DOMAINNAME_OVERFLOW; } if (0 == len) { return LDNS_STATUS_DOMAINNAME_UNDERFLOW; } /* root label */ if (1 == len && *str == '.') { *d = ldns_rdf_new_frm_data(LDNS_RDF_TYPE_DNAME, 1, "\0"); return LDNS_STATUS_OK; } /* get on with the rest */ /* s is on the current character in the string * pq points to where the labellength is going to go * label_len keeps track of the current label's length * q builds the dname inside the buf array */ len = 0; q = buf+1; pq = buf; label_len = 0; for (s = (uint8_t *)str; *s; s++, q++) { if (q > buf + LDNS_MAX_DOMAINLEN) { return LDNS_STATUS_DOMAINNAME_OVERFLOW; } *q = 0; switch (*s) { case '.': if (label_len > LDNS_MAX_LABELLEN) { return LDNS_STATUS_LABEL_OVERFLOW; } if (label_len == 0) { return LDNS_STATUS_EMPTY_LABEL; } len += label_len + 1; *pq = label_len; label_len = 0; pq = q; break; case '\\': /* octet value or literal char */ esc = parse_escape(s, q); if (esc > 0) { s += esc; label_len++; } else { return LDNS_STATUS_SYNTAX_BAD_ESCAPE; } break; default: *q = *s; label_len++; } } /* add root label if last char was not '.' */ if (!ldns_dname_str_absolute(str)) { if (q > buf + LDNS_MAX_DOMAINLEN) { return LDNS_STATUS_DOMAINNAME_OVERFLOW; } if (label_len > LDNS_MAX_LABELLEN) { return LDNS_STATUS_LABEL_OVERFLOW; } if (label_len == 0) { /* label_len 0 but not . at end? */ return LDNS_STATUS_EMPTY_LABEL; } len += label_len + 1; *pq = label_len; *q = 0; } len++; *d = ldns_rdf_new_frm_data(LDNS_RDF_TYPE_DNAME, len, buf); return LDNS_STATUS_OK; } ldns_status ldns_str2rdf_a(ldns_rdf **rd, const char *str) { in_addr_t address; if (inet_pton(AF_INET, (char*)str, &address) != 1) { return LDNS_STATUS_INVALID_IP4; } else { *rd = ldns_rdf_new_frm_data( LDNS_RDF_TYPE_A, sizeof(address), &address); } return *rd?LDNS_STATUS_OK:LDNS_STATUS_MEM_ERR; } ldns_status ldns_str2rdf_aaaa(ldns_rdf **rd, const char *str) { uint8_t address[LDNS_IP6ADDRLEN + 1]; if (inet_pton(AF_INET6, (char*)str, address) != 1) { return LDNS_STATUS_INVALID_IP6; } else { *rd = ldns_rdf_new_frm_data( LDNS_RDF_TYPE_AAAA, sizeof(address) - 1, &address); } return *rd?LDNS_STATUS_OK:LDNS_STATUS_MEM_ERR; } ldns_status ldns_str2rdf_str(ldns_rdf **rd, const char *str) { uint8_t *data; size_t i, str_i, esc_i; if (strlen(str) > 255) { return LDNS_STATUS_INVALID_STR; } data = LDNS_XMALLOC(uint8_t, strlen(str) + 1); if(!data) return LDNS_STATUS_MEM_ERR; i = 1; for (str_i = 0; str_i < strlen(str); str_i++) { if (str[str_i] == '\\') { /* octet value or literal char */ esc_i = (size_t) parse_escape((uint8_t*) &str[str_i], (uint8_t*) &data[i]); if (esc_i == 0) { LDNS_FREE(data); return LDNS_STATUS_SYNTAX_BAD_ESCAPE; } str_i += esc_i; } else { data[i] = (uint8_t) str[str_i]; } i++; } data[0] = i - 1; *rd = ldns_rdf_new_frm_data(LDNS_RDF_TYPE_STR, i, data); LDNS_FREE(data); return *rd?LDNS_STATUS_OK:LDNS_STATUS_MEM_ERR; } ldns_status ldns_str2rdf_apl(ldns_rdf **rd, const char *str) { const char *my_str = str; char *my_ip_str; size_t ip_str_len; uint16_t family; bool negation; uint8_t afdlength = 0; uint8_t *afdpart; uint8_t prefix; uint8_t *data; size_t i = 0; /* [!]afi:address/prefix */ if (strlen(my_str) < 2) { return LDNS_STATUS_INVALID_STR; } if (my_str[0] == '!') { negation = true; my_str += 1; } else { negation = false; } family = (uint16_t) atoi(my_str); my_str = strchr(my_str, ':') + 1; /* need ip addr and only ip addr for inet_pton */ ip_str_len = (size_t) (strchr(my_str, '/') - my_str); my_ip_str = LDNS_XMALLOC(char, ip_str_len + 1); if(!my_ip_str) return LDNS_STATUS_MEM_ERR; strncpy(my_ip_str, my_str, ip_str_len + 1); my_ip_str[ip_str_len] = '\0'; if (family == 1) { /* ipv4 */ afdpart = LDNS_XMALLOC(uint8_t, 4); if(!afdpart) { LDNS_FREE(my_ip_str); return LDNS_STATUS_MEM_ERR; } if (inet_pton(AF_INET, my_ip_str, afdpart) == 0) { LDNS_FREE(my_ip_str); LDNS_FREE(afdpart); return LDNS_STATUS_INVALID_STR; } for (i = 0; i < 4; i++) { if (afdpart[i] != 0) { afdlength = i + 1; } } } else if (family == 2) { /* ipv6 */ afdpart = LDNS_XMALLOC(uint8_t, 16); if(!afdpart) { LDNS_FREE(my_ip_str); return LDNS_STATUS_MEM_ERR; } if (inet_pton(AF_INET6, my_ip_str, afdpart) == 0) { LDNS_FREE(my_ip_str); LDNS_FREE(afdpart); return LDNS_STATUS_INVALID_STR; } for (i = 0; i < 16; i++) { if (afdpart[i] != 0) { afdlength = i + 1; } } } else { /* unknown family */ LDNS_FREE(my_ip_str); return LDNS_STATUS_INVALID_STR; } my_str = strchr(my_str, '/') + 1; prefix = (uint8_t) atoi(my_str); data = LDNS_XMALLOC(uint8_t, 4 + afdlength); if(!data) { LDNS_FREE(my_ip_str); return LDNS_STATUS_INVALID_STR; } ldns_write_uint16(data, family); data[2] = prefix; data[3] = afdlength; if (negation) { /* set bit 1 of byte 3 */ data[3] = data[3] | 0x80; } memcpy(data + 4, afdpart, afdlength); *rd = ldns_rdf_new_frm_data(LDNS_RDF_TYPE_APL, afdlength + 4, data); LDNS_FREE(afdpart); LDNS_FREE(data); LDNS_FREE(my_ip_str); return *rd?LDNS_STATUS_OK:LDNS_STATUS_MEM_ERR; } ldns_status ldns_str2rdf_b64(ldns_rdf **rd, const char *str) { uint8_t *buffer; int16_t i; buffer = LDNS_XMALLOC(uint8_t, ldns_b64_ntop_calculate_size(strlen(str))); if(!buffer) { return LDNS_STATUS_MEM_ERR; } i = (uint16_t)ldns_b64_pton((const char*)str, buffer, ldns_b64_ntop_calculate_size(strlen(str))); if (-1 == i) { LDNS_FREE(buffer); return LDNS_STATUS_INVALID_B64; } else { *rd = ldns_rdf_new_frm_data( LDNS_RDF_TYPE_B64, (uint16_t) i, buffer); } LDNS_FREE(buffer); return *rd?LDNS_STATUS_OK:LDNS_STATUS_MEM_ERR; } ldns_status ldns_str2rdf_b32_ext(ldns_rdf **rd, const char *str) { uint8_t *buffer; int i; /* first byte contains length of actual b32 data */ uint8_t len = ldns_b32_pton_calculate_size(strlen(str)); buffer = LDNS_XMALLOC(uint8_t, len + 1); if(!buffer) { return LDNS_STATUS_MEM_ERR; } buffer[0] = len; i = ldns_b32_pton_extended_hex((const char*)str, strlen(str), buffer + 1, ldns_b32_ntop_calculate_size(strlen(str))); if (i < 0) { LDNS_FREE(buffer); return LDNS_STATUS_INVALID_B32_EXT; } else { *rd = ldns_rdf_new_frm_data( LDNS_RDF_TYPE_B32_EXT, (uint16_t) i + 1, buffer); } LDNS_FREE(buffer); return *rd?LDNS_STATUS_OK:LDNS_STATUS_MEM_ERR; } ldns_status ldns_str2rdf_hex(ldns_rdf **rd, const char *str) { uint8_t *t, *t_orig; int i; size_t len; len = strlen(str); if (len > LDNS_MAX_RDFLEN * 2) { return LDNS_STATUS_LABEL_OVERFLOW; } else { t = LDNS_XMALLOC(uint8_t, (len / 2) + 1); if(!t) { return LDNS_STATUS_MEM_ERR; } t_orig = t; /* Now process octet by octet... */ while (*str) { *t = 0; if (isspace((int) *str)) { str++; } else { for (i = 16; i >= 1; i -= 15) { while (*str && isspace((int) *str)) { str++; } if (*str) { if (isxdigit((int) *str)) { *t += ldns_hexdigit_to_int(*str) * i; } else { LDNS_FREE(t_orig); return LDNS_STATUS_ERR; } ++str; } } ++t; } } *rd = ldns_rdf_new_frm_data(LDNS_RDF_TYPE_HEX, (size_t) (t - t_orig), t_orig); LDNS_FREE(t_orig); } return *rd?LDNS_STATUS_OK:LDNS_STATUS_MEM_ERR; } ldns_status ldns_str2rdf_nsec(ldns_rdf **rd, const char *str) { const char *delimiters = "\n\t "; char *token = LDNS_XMALLOC(char, LDNS_MAX_RDFLEN); ldns_buffer *str_buf; ssize_t c; uint16_t cur_type; size_t type_count = 0; ldns_rr_type type_list[65536]; if(!token) return LDNS_STATUS_MEM_ERR; if(rd == NULL) { LDNS_FREE(token); return LDNS_STATUS_NULL; } str_buf = LDNS_MALLOC(ldns_buffer); if(!str_buf) { LDNS_FREE(token); return LDNS_STATUS_MEM_ERR; } ldns_buffer_new_frm_data(str_buf, (char *)str, strlen(str)); if(ldns_buffer_status(str_buf) != LDNS_STATUS_OK) { LDNS_FREE(str_buf); LDNS_FREE(token); return LDNS_STATUS_MEM_ERR; } while ((c = ldns_bget_token(str_buf, token, delimiters, LDNS_MAX_RDFLEN)) != -1 && c != 0) { if(type_count >= sizeof(type_list)) { LDNS_FREE(str_buf); LDNS_FREE(token); return LDNS_STATUS_ERR; } cur_type = ldns_get_rr_type_by_name(token); type_list[type_count] = cur_type; type_count++; } *rd = ldns_dnssec_create_nsec_bitmap(type_list, type_count, LDNS_RR_TYPE_NSEC); LDNS_FREE(token); ldns_buffer_free(str_buf); return *rd?LDNS_STATUS_OK:LDNS_STATUS_MEM_ERR; } ldns_status ldns_str2rdf_type(ldns_rdf **rd, const char *str) { uint16_t type; type = htons(ldns_get_rr_type_by_name(str)); /* ldns_rr_type is a 16 bit value */ *rd = ldns_rdf_new_frm_data( LDNS_RDF_TYPE_TYPE, sizeof(uint16_t), &type); return *rd?LDNS_STATUS_OK:LDNS_STATUS_MEM_ERR; } ldns_status ldns_str2rdf_class(ldns_rdf **rd, const char *str) { uint16_t klass; klass = htons(ldns_get_rr_class_by_name(str)); /* class is 16 bit */ *rd = ldns_rdf_new_frm_data( LDNS_RDF_TYPE_CLASS, sizeof(uint16_t), &klass); return *rd?LDNS_STATUS_OK:LDNS_STATUS_MEM_ERR; } /* An certificate alg field can either be specified as a 8 bits number * or by its symbolic name. Handle both */ ldns_status ldns_str2rdf_cert_alg(ldns_rdf **rd, const char *str) { ldns_lookup_table *lt; ldns_status st; uint8_t idd[2]; lt = ldns_lookup_by_name(ldns_cert_algorithms, str); st = LDNS_STATUS_OK; if (lt) { ldns_write_uint16(idd, (uint16_t) lt->id); *rd = ldns_rdf_new_frm_data( LDNS_RDF_TYPE_INT16, sizeof(uint16_t), idd); if (!*rd) { st = LDNS_STATUS_ERR; } } else { /* try as-is (a number) */ st = ldns_str2rdf_int16(rd, str); if (st == LDNS_STATUS_OK && ldns_rdf2native_int16(*rd) == 0) { st = LDNS_STATUS_CERT_BAD_ALGORITHM; } } return st; } /* An alg field can either be specified as a 8 bits number * or by its symbolic name. Handle both */ ldns_status ldns_str2rdf_alg(ldns_rdf **rd, const char *str) { ldns_lookup_table *lt; ldns_status st; lt = ldns_lookup_by_name(ldns_algorithms, str); st = LDNS_STATUS_OK; if (lt) { /* it was given as a integer */ *rd = ldns_native2rdf_int8(LDNS_RDF_TYPE_INT8, (uint8_t) lt->id); if (!*rd) { st = LDNS_STATUS_ERR; } } else { /* try as-is (a number) */ st = ldns_str2rdf_int8(rd, str); } return st; } ldns_status ldns_str2rdf_unknown(ldns_rdf **rd, const char *str) { /* this should be caught in an earlier time (general str2host for rr's */ rd = rd; str = str; return LDNS_STATUS_NOT_IMPL; } ldns_status ldns_str2rdf_tsig(ldns_rdf **rd, const char *str) { /* there is no strign representation for TSIG rrs */ rd = rd; str = str; return LDNS_STATUS_NOT_IMPL; } ldns_status ldns_str2rdf_service(ldns_rdf **rd, const char *str) { /* is this used? is this actually WKS? or SRV? */ rd = rd; str = str; return LDNS_STATUS_NOT_IMPL; } static int loc_parse_cm(char* my_str, char** endstr, uint8_t* m, uint8_t* e) { /* read [.][mM] */ /* into mantissa exponent format for LOC type */ uint32_t meters = 0, cm = 0, val; while (isblank(*my_str)) { my_str++; } meters = (uint32_t)strtol(my_str, &my_str, 10); if (*my_str == '.') { my_str++; cm = (uint32_t)strtol(my_str, &my_str, 10); } if (meters >= 1) { *e = 2; val = meters; } else { *e = 0; val = cm; } while(val >= 10) { (*e)++; val /= 10; } *m = (uint8_t)val; if (*e > 9) return 0; if (*my_str == 'm' || *my_str == 'M') { my_str++; } *endstr = my_str; return 1; } ldns_status ldns_str2rdf_loc(ldns_rdf **rd, const char *str) { uint32_t latitude = 0; uint32_t longitude = 0; uint32_t altitude = 0; uint8_t *data; uint32_t equator = (uint32_t) ldns_power(2, 31); uint32_t h = 0; uint32_t m = 0; uint8_t size_b = 1, size_e = 2; uint8_t horiz_pre_b = 1, horiz_pre_e = 6; uint8_t vert_pre_b = 1, vert_pre_e = 3; double s = 0.0; bool northerness; bool easterness; char *my_str = (char *) str; /* only support version 0 */ if (isdigit((int) *my_str)) { h = (uint32_t) strtol(my_str, &my_str, 10); } else { return LDNS_STATUS_INVALID_STR; } while (isblank((int) *my_str)) { my_str++; } if (isdigit((int) *my_str)) { m = (uint32_t) strtol(my_str, &my_str, 10); } else if (*my_str == 'N' || *my_str == 'S') { goto north; } else { return LDNS_STATUS_INVALID_STR; } while (isblank((int) *my_str)) { my_str++; } if (isdigit((int) *my_str)) { s = strtod(my_str, &my_str); } north: while (isblank((int) *my_str)) { my_str++; } if (*my_str == 'N') { northerness = true; } else if (*my_str == 'S') { northerness = false; } else { return LDNS_STATUS_INVALID_STR; } my_str++; /* store number */ s = 1000.0 * s; /* add a little to make floor in conversion a round */ s += 0.0005; latitude = (uint32_t) s; latitude += 1000 * 60 * m; latitude += 1000 * 60 * 60 * h; if (northerness) { latitude = equator + latitude; } else { latitude = equator - latitude; } while (isblank(*my_str)) { my_str++; } if (isdigit((int) *my_str)) { h = (uint32_t) strtol(my_str, &my_str, 10); } else { return LDNS_STATUS_INVALID_STR; } while (isblank((int) *my_str)) { my_str++; } if (isdigit((int) *my_str)) { m = (uint32_t) strtol(my_str, &my_str, 10); } else if (*my_str == 'E' || *my_str == 'W') { goto east; } else { return LDNS_STATUS_INVALID_STR; } while (isblank(*my_str)) { my_str++; } if (isdigit((int) *my_str)) { s = strtod(my_str, &my_str); } east: while (isblank(*my_str)) { my_str++; } if (*my_str == 'E') { easterness = true; } else if (*my_str == 'W') { easterness = false; } else { return LDNS_STATUS_INVALID_STR; } my_str++; /* store number */ s *= 1000.0; /* add a little to make floor in conversion a round */ s += 0.0005; longitude = (uint32_t) s; longitude += 1000 * 60 * m; longitude += 1000 * 60 * 60 * h; if (easterness) { longitude += equator; } else { longitude = equator - longitude; } altitude = (uint32_t)(strtod(my_str, &my_str)*100.0 + 10000000.0 + 0.5); if (*my_str == 'm' || *my_str == 'M') { my_str++; } if (strlen(my_str) > 0) { if(!loc_parse_cm(my_str, &my_str, &size_b, &size_e)) return LDNS_STATUS_INVALID_STR; } if (strlen(my_str) > 0) { if(!loc_parse_cm(my_str, &my_str, &horiz_pre_b, &horiz_pre_e)) return LDNS_STATUS_INVALID_STR; } if (strlen(my_str) > 0) { if(!loc_parse_cm(my_str, &my_str, &vert_pre_b, &vert_pre_e)) return LDNS_STATUS_INVALID_STR; } data = LDNS_XMALLOC(uint8_t, 16); if(!data) { return LDNS_STATUS_MEM_ERR; } data[0] = 0; data[1] = 0; data[1] = ((size_b << 4) & 0xf0) | (size_e & 0x0f); data[2] = ((horiz_pre_b << 4) & 0xf0) | (horiz_pre_e & 0x0f); data[3] = ((vert_pre_b << 4) & 0xf0) | (vert_pre_e & 0x0f); ldns_write_uint32(data + 4, latitude); ldns_write_uint32(data + 8, longitude); ldns_write_uint32(data + 12, altitude); *rd = ldns_rdf_new_frm_data( LDNS_RDF_TYPE_LOC, 16, data); LDNS_FREE(data); return *rd?LDNS_STATUS_OK:LDNS_STATUS_MEM_ERR; } ldns_status ldns_str2rdf_wks(ldns_rdf **rd, const char *str) { uint8_t *bitmap = NULL; uint8_t *data; int bm_len = 0; struct protoent *proto = NULL; struct servent *serv = NULL; int serv_port; ldns_buffer *str_buf; char *proto_str = NULL; char *token; if(strlen(str) == 0) token = LDNS_XMALLOC(char, 50); else token = LDNS_XMALLOC(char, strlen(str)+2); if(!token) return LDNS_STATUS_MEM_ERR; str_buf = LDNS_MALLOC(ldns_buffer); if(!str_buf) {LDNS_FREE(token); return LDNS_STATUS_MEM_ERR;} ldns_buffer_new_frm_data(str_buf, (char *)str, strlen(str)); if(ldns_buffer_status(str_buf) != LDNS_STATUS_OK) { LDNS_FREE(str_buf); LDNS_FREE(token); return LDNS_STATUS_MEM_ERR; } while(ldns_bget_token(str_buf, token, "\t\n ", strlen(str)) > 0) { if (!proto_str) { proto_str = strdup(token); if (!proto_str) { LDNS_FREE(bitmap); LDNS_FREE(token); ldns_buffer_free(str_buf); return LDNS_STATUS_INVALID_STR; } } else { serv = getservbyname(token, proto_str); if (serv) { serv_port = (int) ntohs((uint16_t) serv->s_port); } else { serv_port = atoi(token); } if (serv_port / 8 >= bm_len) { uint8_t *b2 = LDNS_XREALLOC(bitmap, uint8_t, (serv_port / 8) + 1); if(!b2) { LDNS_FREE(bitmap); LDNS_FREE(token); ldns_buffer_free(str_buf); free(proto_str); return LDNS_STATUS_INVALID_STR; } bitmap = b2; /* set to zero to be sure */ for (; bm_len <= serv_port / 8; bm_len++) { bitmap[bm_len] = 0; } } ldns_set_bit(bitmap + (serv_port / 8), 7 - (serv_port % 8), true); } } if (!proto_str || !bitmap) { LDNS_FREE(bitmap); LDNS_FREE(token); ldns_buffer_free(str_buf); free(proto_str); return LDNS_STATUS_INVALID_STR; } data = LDNS_XMALLOC(uint8_t, bm_len + 1); if(!data) { LDNS_FREE(token); ldns_buffer_free(str_buf); LDNS_FREE(bitmap); free(proto_str); return LDNS_STATUS_INVALID_STR; } if (proto_str) proto = getprotobyname(proto_str); if (proto) { data[0] = (uint8_t) proto->p_proto; } else if (proto_str) { data[0] = (uint8_t) atoi(proto_str); } else { data[0] = 0; } memcpy(data + 1, bitmap, (size_t) bm_len); *rd = ldns_rdf_new_frm_data(LDNS_RDF_TYPE_WKS, (uint16_t) (bm_len + 1), data); LDNS_FREE(data); LDNS_FREE(token); ldns_buffer_free(str_buf); LDNS_FREE(bitmap); free(proto_str); #ifdef HAVE_ENDSERVENT endservent(); #endif #ifdef HAVE_ENDPROTOENT endprotoent(); #endif if(!*rd) return LDNS_STATUS_MEM_ERR; return LDNS_STATUS_OK; } ldns_status ldns_str2rdf_nsap(ldns_rdf **rd, const char *str) { size_t len, i; char* nsap_str = (char*) str; /* just a hex string with optional dots? */ if (str[0] != '0' || str[1] != 'x') { return LDNS_STATUS_INVALID_STR; } else { len = strlen(str); for (i=0; i < len; i++) { if (nsap_str[i] == '.') nsap_str[i] = ' '; } return ldns_str2rdf_hex(rd, str+2); } } ldns_status ldns_str2rdf_atma(ldns_rdf **rd, const char *str) { size_t len, i; char* atma_str = (char*) str; ldns_status status; /* just a hex string with optional dots? */ len = strlen(str); for (i=0; i < len; i++) { if (atma_str[i] == '.') atma_str[i] = ' '; } status = ldns_str2rdf_hex(rd, str); if (status != LDNS_STATUS_OK) { ; /* probably in e.164 format than */ } return status; } ldns_status ldns_str2rdf_ipseckey(ldns_rdf **rd, const char *str) { uint8_t precedence = 0; uint8_t gateway_type = 0; uint8_t algorithm = 0; char* gateway = NULL; char* publickey = NULL; uint8_t *data; ldns_buffer *str_buf; char *token; int token_count = 0; int ipseckey_len = 0; ldns_rdf* gateway_rdf = NULL; ldns_rdf* publickey_rdf = NULL; ldns_status status = LDNS_STATUS_OK; if(strlen(str) == 0) token = LDNS_XMALLOC(char, 256); else token = LDNS_XMALLOC(char, strlen(str)+2); if(!token) return LDNS_STATUS_MEM_ERR; str_buf = LDNS_MALLOC(ldns_buffer); if(!str_buf) {LDNS_FREE(token); return LDNS_STATUS_MEM_ERR;} ldns_buffer_new_frm_data(str_buf, (char *)str, strlen(str)); if(ldns_buffer_status(str_buf) != LDNS_STATUS_OK) { LDNS_FREE(str_buf); LDNS_FREE(token); return LDNS_STATUS_MEM_ERR; } while(ldns_bget_token(str_buf, token, "\t\n ", strlen(str)) > 0) { switch (token_count) { case 0: precedence = (uint8_t)atoi(token); break; case 1: gateway_type = (uint8_t)atoi(token); break; case 2: algorithm = (uint8_t)atoi(token); break; case 3: gateway = strdup(token); if (!gateway || (gateway_type == 0 && (token[0] != '.' || token[1] != '\0'))) { LDNS_FREE(gateway); LDNS_FREE(token); ldns_buffer_free(str_buf); return LDNS_STATUS_INVALID_STR; } break; case 4: publickey = strdup(token); break; default: LDNS_FREE(token); ldns_buffer_free(str_buf); return LDNS_STATUS_INVALID_STR; break; } token_count++; } if (!gateway || !publickey) { if (gateway) LDNS_FREE(gateway); if (publickey) LDNS_FREE(publickey); LDNS_FREE(token); ldns_buffer_free(str_buf); return LDNS_STATUS_INVALID_STR; } if (gateway_type == 1) { status = ldns_str2rdf_a(&gateway_rdf, gateway); } else if (gateway_type == 2) { status = ldns_str2rdf_aaaa(&gateway_rdf, gateway); } else if (gateway_type == 3) { status = ldns_str2rdf_dname(&gateway_rdf, gateway); } if (status != LDNS_STATUS_OK) { if (gateway) LDNS_FREE(gateway); if (publickey) LDNS_FREE(publickey); LDNS_FREE(token); ldns_buffer_free(str_buf); return LDNS_STATUS_INVALID_STR; } status = ldns_str2rdf_b64(&publickey_rdf, publickey); if (status != LDNS_STATUS_OK) { if (gateway) LDNS_FREE(gateway); if (publickey) LDNS_FREE(publickey); LDNS_FREE(token); ldns_buffer_free(str_buf); if (gateway_rdf) ldns_rdf_free(gateway_rdf); return LDNS_STATUS_INVALID_STR; } /* now copy all into one ipseckey rdf */ if (gateway_type) ipseckey_len = 3 + (int)ldns_rdf_size(gateway_rdf) + (int)ldns_rdf_size(publickey_rdf); else ipseckey_len = 3 + (int)ldns_rdf_size(publickey_rdf); data = LDNS_XMALLOC(uint8_t, ipseckey_len); if(!data) { if (gateway) LDNS_FREE(gateway); if (publickey) LDNS_FREE(publickey); LDNS_FREE(token); ldns_buffer_free(str_buf); if (gateway_rdf) ldns_rdf_free(gateway_rdf); if (publickey_rdf) ldns_rdf_free(publickey_rdf); return LDNS_STATUS_MEM_ERR; } data[0] = precedence; data[1] = gateway_type; data[2] = algorithm; if (gateway_type) { memcpy(data + 3, ldns_rdf_data(gateway_rdf), ldns_rdf_size(gateway_rdf)); memcpy(data + 3 + ldns_rdf_size(gateway_rdf), ldns_rdf_data(publickey_rdf), ldns_rdf_size(publickey_rdf)); } else { memcpy(data + 3, ldns_rdf_data(publickey_rdf), ldns_rdf_size(publickey_rdf)); } *rd = ldns_rdf_new_frm_data(LDNS_RDF_TYPE_IPSECKEY, (uint16_t) ipseckey_len, data); if (gateway) LDNS_FREE(gateway); if (publickey) LDNS_FREE(publickey); LDNS_FREE(token); ldns_buffer_free(str_buf); ldns_rdf_free(gateway_rdf); ldns_rdf_free(publickey_rdf); LDNS_FREE(data); if(!*rd) return LDNS_STATUS_MEM_ERR; return LDNS_STATUS_OK; }