diff options
Diffstat (limited to 'src/sdp-xml.c')
| -rw-r--r-- | src/sdp-xml.c | 991 |
1 files changed, 602 insertions, 389 deletions
diff --git a/src/sdp-xml.c b/src/sdp-xml.c index d7b2aefd..64927813 100644 --- a/src/sdp-xml.c +++ b/src/sdp-xml.c @@ -25,7 +25,6 @@ #include <config.h> #endif -#define _GNU_SOURCE #include <stdio.h> #include <errno.h> #include <ctype.h> @@ -33,14 +32,610 @@ #include <limits.h> #include <stdlib.h> +#include <glib.h> + #include <bluetooth/sdp.h> #include <bluetooth/sdp_lib.h> #include "sdp-xml.h" +#define DBG(...) (void)(0) +#define error(...) (void)(0) + +#define SDP_XML_ENCODING_NORMAL 0 +#define SDP_XML_ENCODING_HEX 1 + #define STRBUFSIZE 1024 #define MAXINDENT 64 +struct sdp_xml_data { + char *text; /* Pointer to the current buffer */ + int size; /* Size of the current buffer */ + sdp_data_t *data; /* The current item being built */ + struct sdp_xml_data *next; /* Next item on the stack */ + char type; /* 0 = Text or Hexadecimal */ + char *name; /* Name, optional in the dtd */ + /* TODO: What is it used for? */ +}; + +struct context_data { + sdp_record_t *record; + sdp_data_t attr_data; + struct sdp_xml_data *stack_head; + uint16_t attr_id; +}; + +static int compute_seq_size(sdp_data_t *data) +{ + int unit_size = data->unitSize; + sdp_data_t *seq = data->val.dataseq; + + for (; seq; seq = seq->next) + unit_size += seq->unitSize; + + return unit_size; +} + +#define DEFAULT_XML_DATA_SIZE 1024 + +static struct sdp_xml_data *sdp_xml_data_alloc(void) +{ + struct sdp_xml_data *elem; + + elem = malloc(sizeof(struct sdp_xml_data)); + if (!elem) + return NULL; + + memset(elem, 0, sizeof(struct sdp_xml_data)); + + /* Null terminate the text */ + elem->size = DEFAULT_XML_DATA_SIZE; + elem->text = malloc(DEFAULT_XML_DATA_SIZE); + elem->text[0] = '\0'; + + return elem; +} + +static struct sdp_xml_data *sdp_xml_data_expand(struct sdp_xml_data *elem) +{ + char *newbuf; + + newbuf = malloc(elem->size * 2); + if (!newbuf) + return NULL; + + memcpy(newbuf, elem->text, elem->size); + elem->size *= 2; + free(elem->text); + + elem->text = newbuf; + + return elem; +} + +static sdp_data_t *sdp_xml_parse_uuid128(const char *data) +{ + uint128_t val; + unsigned int i, j; + + char buf[3]; + + memset(&val, 0, sizeof(val)); + + buf[2] = '\0'; + + for (j = 0, i = 0; i < strlen(data);) { + if (data[i] == '-') { + i++; + continue; + } + + buf[0] = data[i]; + buf[1] = data[i + 1]; + + val.data[j++] = strtoul(buf, 0, 16); + i += 2; + } + + return sdp_data_alloc(SDP_UUID128, &val); +} + +static sdp_data_t *sdp_xml_parse_uuid(const char *data, sdp_record_t *record) +{ + sdp_data_t *ret; + char *endptr; + uint32_t val; + uint16_t val2; + int len; + + len = strlen(data); + + if (len == 36) { + ret = sdp_xml_parse_uuid128(data); + goto result; + } + + val = strtoll(data, &endptr, 16); + + /* Couldn't parse */ + if (*endptr != '\0') + return NULL; + + if (val > USHRT_MAX) { + ret = sdp_data_alloc(SDP_UUID32, &val); + goto result; + } + + val2 = val; + + ret = sdp_data_alloc(SDP_UUID16, &val2); + +result: + if (record && ret) + sdp_pattern_add_uuid(record, &ret->val.uuid); + + return ret; +} + +static sdp_data_t *sdp_xml_parse_int(const char *data, uint8_t dtd) +{ + char *endptr; + sdp_data_t *ret = NULL; + + switch (dtd) { + case SDP_BOOL: + { + uint8_t val = 0; + + if (!strcmp("true", data)) + val = 1; + else if (!strcmp("false", data)) + val = 0; + else + return NULL; + + ret = sdp_data_alloc(dtd, &val); + break; + } + + case SDP_INT8: + { + int8_t val = strtoul(data, &endptr, 0); + + /* Failed to parse */ + if ((endptr != data) && (*endptr != '\0')) + return NULL; + + ret = sdp_data_alloc(dtd, &val); + break; + } + + case SDP_UINT8: + { + uint8_t val = strtoul(data, &endptr, 0); + + /* Failed to parse */ + if ((endptr != data) && (*endptr != '\0')) + return NULL; + + ret = sdp_data_alloc(dtd, &val); + break; + } + + case SDP_INT16: + { + int16_t val = strtoul(data, &endptr, 0); + + /* Failed to parse */ + if ((endptr != data) && (*endptr != '\0')) + return NULL; + + ret = sdp_data_alloc(dtd, &val); + break; + } + + case SDP_UINT16: + { + uint16_t val = strtoul(data, &endptr, 0); + + /* Failed to parse */ + if ((endptr != data) && (*endptr != '\0')) + return NULL; + + ret = sdp_data_alloc(dtd, &val); + break; + } + + case SDP_INT32: + { + int32_t val = strtoul(data, &endptr, 0); + + /* Failed to parse */ + if ((endptr != data) && (*endptr != '\0')) + return NULL; + + ret = sdp_data_alloc(dtd, &val); + break; + } + + case SDP_UINT32: + { + uint32_t val = strtoul(data, &endptr, 0); + + /* Failed to parse */ + if ((endptr != data) && (*endptr != '\0')) + return NULL; + + ret = sdp_data_alloc(dtd, &val); + break; + } + + case SDP_INT64: + { + int64_t val = strtoull(data, &endptr, 0); + + /* Failed to parse */ + if ((endptr != data) && (*endptr != '\0')) + return NULL; + + ret = sdp_data_alloc(dtd, &val); + break; + } + + case SDP_UINT64: + { + uint64_t val = strtoull(data, &endptr, 0); + + /* Failed to parse */ + if ((endptr != data) && (*endptr != '\0')) + return NULL; + + ret = sdp_data_alloc(dtd, &val); + break; + } + + case SDP_INT128: + case SDP_UINT128: + { + uint128_t val; + int i = 0; + char buf[3]; + + buf[2] = '\0'; + + for (; i < 32; i += 2) { + buf[0] = data[i]; + buf[1] = data[i + 1]; + + val.data[i >> 1] = strtoul(buf, 0, 16); + } + + ret = sdp_data_alloc(dtd, &val); + break; + } + + }; + + return ret; +} + +static char *sdp_xml_parse_string_decode(const char *data, char encoding, + uint32_t *length) +{ + int len = strlen(data); + char *text; + + if (encoding == SDP_XML_ENCODING_NORMAL) { + text = strdup(data); + *length = len; + } else { + char buf[3], *decoded; + int i; + + decoded = malloc((len >> 1) + 1); + + /* Ensure the string is a power of 2 */ + len = (len >> 1) << 1; + + buf[2] = '\0'; + + for (i = 0; i < len; i += 2) { + buf[0] = data[i]; + buf[1] = data[i + 1]; + + decoded[i >> 1] = strtoul(buf, 0, 16); + } + + decoded[len >> 1] = '\0'; + text = decoded; + *length = len >> 1; + } + + return text; +} + +static sdp_data_t *sdp_xml_parse_url(const char *data) +{ + uint8_t dtd = SDP_URL_STR8; + char *url; + uint32_t length; + sdp_data_t *ret; + + url = sdp_xml_parse_string_decode(data, + SDP_XML_ENCODING_NORMAL, &length); + + if (length > UCHAR_MAX) + dtd = SDP_URL_STR16; + + ret = sdp_data_alloc_with_length(dtd, url, length); + + free(url); + + return ret; +} + +static sdp_data_t *sdp_xml_parse_text(const char *data, char encoding) +{ + uint8_t dtd = SDP_TEXT_STR8; + char *text; + uint32_t length; + sdp_data_t *ret; + + text = sdp_xml_parse_string_decode(data, encoding, &length); + + if (length > UCHAR_MAX) + dtd = SDP_TEXT_STR16; + + ret = sdp_data_alloc_with_length(dtd, text, length); + + free(text); + + return ret; +} + +static sdp_data_t *sdp_xml_parse_nil(const char *data) +{ + return sdp_data_alloc(SDP_DATA_NIL, 0); +} + +static sdp_data_t *sdp_xml_parse_datatype(const char *el, + struct sdp_xml_data *elem, + sdp_record_t *record) +{ + const char *data = elem->text; + + if (!strcmp(el, "boolean")) + return sdp_xml_parse_int(data, SDP_BOOL); + else if (!strcmp(el, "uint8")) + return sdp_xml_parse_int(data, SDP_UINT8); + else if (!strcmp(el, "uint16")) + return sdp_xml_parse_int(data, SDP_UINT16); + else if (!strcmp(el, "uint32")) + return sdp_xml_parse_int(data, SDP_UINT32); + else if (!strcmp(el, "uint64")) + return sdp_xml_parse_int(data, SDP_UINT64); + else if (!strcmp(el, "uint128")) + return sdp_xml_parse_int(data, SDP_UINT128); + else if (!strcmp(el, "int8")) + return sdp_xml_parse_int(data, SDP_INT8); + else if (!strcmp(el, "int16")) + return sdp_xml_parse_int(data, SDP_INT16); + else if (!strcmp(el, "int32")) + return sdp_xml_parse_int(data, SDP_INT32); + else if (!strcmp(el, "int64")) + return sdp_xml_parse_int(data, SDP_INT64); + else if (!strcmp(el, "int128")) + return sdp_xml_parse_int(data, SDP_INT128); + else if (!strcmp(el, "uuid")) + return sdp_xml_parse_uuid(data, record); + else if (!strcmp(el, "url")) + return sdp_xml_parse_url(data); + else if (!strcmp(el, "text")) + return sdp_xml_parse_text(data, elem->type); + else if (!strcmp(el, "nil")) + return sdp_xml_parse_nil(data); + + return NULL; +} +static void element_start(GMarkupParseContext *context, + const char *element_name, const char **attribute_names, + const char **attribute_values, gpointer user_data, GError **err) +{ + struct context_data *ctx_data = user_data; + + if (!strcmp(element_name, "record")) + return; + + if (!strcmp(element_name, "attribute")) { + int i; + for (i = 0; attribute_names[i]; i++) { + if (!strcmp(attribute_names[i], "id")) { + ctx_data->attr_id = strtol(attribute_values[i], 0, 0); + break; + } + } + DBG("New attribute 0x%04x", ctx_data->attr_id); + return; + } + + if (ctx_data->stack_head) { + struct sdp_xml_data *newelem = sdp_xml_data_alloc(); + newelem->next = ctx_data->stack_head; + ctx_data->stack_head = newelem; + } else { + ctx_data->stack_head = sdp_xml_data_alloc(); + ctx_data->stack_head->next = NULL; + } + + if (!strcmp(element_name, "sequence")) + ctx_data->stack_head->data = sdp_data_alloc(SDP_SEQ8, NULL); + else if (!strcmp(element_name, "alternate")) + ctx_data->stack_head->data = sdp_data_alloc(SDP_ALT8, NULL); + else { + int i; + /* Parse value, name, encoding */ + for (i = 0; attribute_names[i]; i++) { + if (!strcmp(attribute_names[i], "value")) { + int curlen = strlen(ctx_data->stack_head->text); + int attrlen = strlen(attribute_values[i]); + + /* Ensure we're big enough */ + while ((curlen + 1 + attrlen) > ctx_data->stack_head->size) + sdp_xml_data_expand(ctx_data->stack_head); + + memcpy(ctx_data->stack_head->text + curlen, + attribute_values[i], attrlen); + ctx_data->stack_head->text[curlen + attrlen] = '\0'; + } + + if (!strcmp(attribute_names[i], "encoding")) { + if (!strcmp(attribute_values[i], "hex")) + ctx_data->stack_head->type = 1; + } + + if (!strcmp(attribute_names[i], "name")) + ctx_data->stack_head->name = strdup(attribute_values[i]); + } + + ctx_data->stack_head->data = sdp_xml_parse_datatype(element_name, + ctx_data->stack_head, ctx_data->record); + + if (ctx_data->stack_head->data == NULL) + error("Can't parse element %s", element_name); + } +} + +static void sdp_xml_data_free(struct sdp_xml_data *elem) +{ + if (elem->data) + sdp_data_free(elem->data); + + free(elem->name); + free(elem->text); + free(elem); +} + +static void element_end(GMarkupParseContext *context, + const char *element_name, gpointer user_data, GError **err) +{ + struct context_data *ctx_data = user_data; + struct sdp_xml_data *elem; + + if (!strcmp(element_name, "record")) + return; + + if (!strcmp(element_name, "attribute")) { + if (ctx_data->stack_head && ctx_data->stack_head->data) { + int ret = sdp_attr_add(ctx_data->record, ctx_data->attr_id, + ctx_data->stack_head->data); + if (ret == -1) + DBG("Could not add attribute 0x%04x", + ctx_data->attr_id); + + ctx_data->stack_head->data = NULL; + sdp_xml_data_free(ctx_data->stack_head); + ctx_data->stack_head = NULL; + } else { + DBG("No data for attribute 0x%04x", ctx_data->attr_id); + } + return; + } + + if (!ctx_data->stack_head || !ctx_data->stack_head->data) { + DBG("No data for %s", element_name); + return; + } + + if (!strcmp(element_name, "sequence")) { + ctx_data->stack_head->data->unitSize = compute_seq_size(ctx_data->stack_head->data); + + if (ctx_data->stack_head->data->unitSize > USHRT_MAX) { + ctx_data->stack_head->data->unitSize += sizeof(uint32_t); + ctx_data->stack_head->data->dtd = SDP_SEQ32; + } else if (ctx_data->stack_head->data->unitSize > UCHAR_MAX) { + ctx_data->stack_head->data->unitSize += sizeof(uint16_t); + ctx_data->stack_head->data->dtd = SDP_SEQ16; + } else { + ctx_data->stack_head->data->unitSize += sizeof(uint8_t); + } + } else if (!strcmp(element_name, "alternate")) { + ctx_data->stack_head->data->unitSize = compute_seq_size(ctx_data->stack_head->data); + + if (ctx_data->stack_head->data->unitSize > USHRT_MAX) { + ctx_data->stack_head->data->unitSize += sizeof(uint32_t); + ctx_data->stack_head->data->dtd = SDP_ALT32; + } else if (ctx_data->stack_head->data->unitSize > UCHAR_MAX) { + ctx_data->stack_head->data->unitSize += sizeof(uint16_t); + ctx_data->stack_head->data->dtd = SDP_ALT16; + } else { + ctx_data->stack_head->data->unitSize += sizeof(uint8_t); + } + } + + if (ctx_data->stack_head->next && ctx_data->stack_head->data && + ctx_data->stack_head->next->data) { + switch (ctx_data->stack_head->next->data->dtd) { + case SDP_SEQ8: + case SDP_SEQ16: + case SDP_SEQ32: + case SDP_ALT8: + case SDP_ALT16: + case SDP_ALT32: + ctx_data->stack_head->next->data->val.dataseq = + sdp_seq_append(ctx_data->stack_head->next->data->val.dataseq, + ctx_data->stack_head->data); + ctx_data->stack_head->data = NULL; + break; + } + + elem = ctx_data->stack_head; + ctx_data->stack_head = ctx_data->stack_head->next; + + sdp_xml_data_free(elem); + } +} + +static GMarkupParser parser = { + element_start, element_end, NULL, NULL, NULL +}; + +sdp_record_t *sdp_xml_parse_record(const char *data, int size) +{ + GMarkupParseContext *ctx; + struct context_data *ctx_data; + sdp_record_t *record; + + ctx_data = malloc(sizeof(*ctx_data)); + if (!ctx_data) + return NULL; + + record = sdp_record_alloc(); + if (!record) { + free(ctx_data); + return NULL; + } + + memset(ctx_data, 0, sizeof(*ctx_data)); + ctx_data->record = record; + + ctx = g_markup_parse_context_new(&parser, 0, ctx_data, NULL); + + if (g_markup_parse_context_parse(ctx, data, size, NULL) == FALSE) { + error("XML parsing error"); + g_markup_parse_context_free(ctx); + sdp_record_free(record); + free(ctx_data); + return NULL; + } + + g_markup_parse_context_free(ctx); + + free(ctx_data); + + return record; +} + + static void convert_raw_data_to_xml(sdp_data_t *value, int indent_level, void *data, void (*appender)(void *, const char *)) { @@ -266,8 +861,7 @@ static void convert_raw_data_to_xml(sdp_data_t *value, int indent_level, (unsigned char) value->val.str[i]); strBuf[(value->unitSize-1) * 2] = '\0'; - } - else { + } else { int j; /* escape the XML disallowed chars */ strBuf = malloc(sizeof(char) * @@ -278,25 +872,21 @@ static void convert_raw_data_to_xml(sdp_data_t *value, int indent_level, strBuf[j++] = 'a'; strBuf[j++] = 'm'; strBuf[j++] = 'p'; - } - else if (value->val.str[i] == '<') { + } else if (value->val.str[i] == '<') { strBuf[j++] = '&'; strBuf[j++] = 'l'; strBuf[j++] = 't'; - } - else if (value->val.str[i] == '>') { + } else if (value->val.str[i] == '>') { strBuf[j++] = '&'; strBuf[j++] = 'g'; strBuf[j++] = 't'; - } - else if (value->val.str[i] == '"') { + } else if (value->val.str[i] == '"') { strBuf[j++] = '&'; strBuf[j++] = 'q'; strBuf[j++] = 'u'; strBuf[j++] = 'o'; strBuf[j++] = 't'; - } - else if (value->val.str[i] == '\0') { + } else if (value->val.str[i] == '\0') { strBuf[j++] = ' '; } else { strBuf[j++] = value->val.str[i]; @@ -377,10 +967,7 @@ static void convert_raw_attr_to_xml_func(void *val, void *data) value->attrId); cd->appender(cd->data, buf); - if (data) - convert_raw_data_to_xml(value, 2, cd->data, cd->appender); - else - cd->appender(cd->data, "\t\tNULL\n"); + convert_raw_data_to_xml(value, 2, cd->data, cd->appender); cd->appender(cd->data, "\t</attribute>\n"); } @@ -407,377 +994,3 @@ void convert_sdp_record_to_xml(sdp_record_t *rec, appender(data, "</record>\n"); } } - -static sdp_data_t *sdp_xml_parse_uuid128(const char *data) -{ - uint128_t val; - unsigned int i, j; - - char buf[3]; - - memset(&val, 0, sizeof(val)); - - buf[2] = '\0'; - - for (j = 0, i = 0; i < strlen(data);) { - if (data[i] == '-') { - i++; - continue; - } - - buf[0] = data[i]; - buf[1] = data[i + 1]; - - val.data[j++] = strtoul(buf, 0, 16); - i += 2; - } - - return sdp_data_alloc(SDP_UUID128, &val); -} - -sdp_data_t *sdp_xml_parse_uuid(const char *data, sdp_record_t *record) -{ - sdp_data_t *ret; - char *endptr; - uint32_t val; - uint16_t val2; - int len; - - len = strlen(data); - - if (len == 36) { - ret = sdp_xml_parse_uuid128(data); - goto result; - } - - val = strtoll(data, &endptr, 16); - - /* Couldn't parse */ - if (*endptr != '\0') - return NULL; - - if (val > USHRT_MAX) { - ret = sdp_data_alloc(SDP_UUID32, &val); - goto result; - } - - val2 = val; - - ret = sdp_data_alloc(SDP_UUID16, &val2); - -result: - if (record && ret) - sdp_pattern_add_uuid(record, &ret->val.uuid); - - return ret; -} - -sdp_data_t *sdp_xml_parse_int(const char * data, uint8_t dtd) -{ - char *endptr; - sdp_data_t *ret = NULL; - - switch (dtd) { - case SDP_BOOL: - { - uint8_t val = 0; - - if (!strcmp("true", data)) { - val = 1; - } - - else if (!strcmp("false", data)) { - val = 0; - } - else { - return NULL; - } - - ret = sdp_data_alloc(dtd, &val); - break; - } - - case SDP_INT8: - { - int8_t val = strtoul(data, &endptr, 0); - - /* Failed to parse */ - if ((endptr != data) && (*endptr != '\0')) - return NULL; - - ret = sdp_data_alloc(dtd, &val); - break; - } - - case SDP_UINT8: - { - uint8_t val = strtoul(data, &endptr, 0); - - /* Failed to parse */ - if ((endptr != data) && (*endptr != '\0')) - return NULL; - - ret = sdp_data_alloc(dtd, &val); - break; - } - - case SDP_INT16: - { - int16_t val = strtoul(data, &endptr, 0); - - /* Failed to parse */ - if ((endptr != data) && (*endptr != '\0')) - return NULL; - - ret = sdp_data_alloc(dtd, &val); - break; - } - - case SDP_UINT16: - { - uint16_t val = strtoul(data, &endptr, 0); - - /* Failed to parse */ - if ((endptr != data) && (*endptr != '\0')) - return NULL; - - ret = sdp_data_alloc(dtd, &val); - break; - } - - case SDP_INT32: - { - int32_t val = strtoul(data, &endptr, 0); - - /* Failed to parse */ - if ((endptr != data) && (*endptr != '\0')) - return NULL; - - ret = sdp_data_alloc(dtd, &val); - break; - } - - case SDP_UINT32: - { - uint32_t val = strtoul(data, &endptr, 0); - - /* Failed to parse */ - if ((endptr != data) && (*endptr != '\0')) - return NULL; - - ret = sdp_data_alloc(dtd, &val); - break; - } - - case SDP_INT64: - { - int64_t val = strtoull(data, &endptr, 0); - - /* Failed to parse */ - if ((endptr != data) && (*endptr != '\0')) - return NULL; - - ret = sdp_data_alloc(dtd, &val); - break; - } - - case SDP_UINT64: - { - uint64_t val = strtoull(data, &endptr, 0); - - /* Failed to parse */ - if ((endptr != data) && (*endptr != '\0')) - return NULL; - - ret = sdp_data_alloc(dtd, &val); - break; - } - - case SDP_INT128: - case SDP_UINT128: - { - uint128_t val; - int i = 0; - char buf[3]; - - buf[2] = '\0'; - - for (; i < 32; i += 2) { - buf[0] = data[i]; - buf[1] = data[i + 1]; - - val.data[i >> 1] = strtoul(buf, 0, 16); - } - - ret = sdp_data_alloc(dtd, &val); - break; - } - - }; - - return ret; -} - -static char *sdp_xml_parse_string_decode(const char *data, char encoding, uint32_t *length) -{ - int len = strlen(data); - char *text; - - if (encoding == SDP_XML_ENCODING_NORMAL) { - text = strdup(data); - *length = len; - } else { - char buf[3], *decoded; - int i; - - decoded = malloc((len >> 1) + 1); - - /* Ensure the string is a power of 2 */ - len = (len >> 1) << 1; - - buf[2] = '\0'; - - for (i = 0; i < len; i += 2) { - buf[0] = data[i]; - buf[1] = data[i + 1]; - - decoded[i >> 1] = strtoul(buf, 0, 16); - } - - decoded[len >> 1] = '\0'; - text = decoded; - *length = len >> 1; - } - - return text; -} - -sdp_data_t *sdp_xml_parse_url(const char *data) -{ - uint8_t dtd = SDP_URL_STR8; - char *url; - uint32_t length; - sdp_data_t *ret; - - url = sdp_xml_parse_string_decode(data, - SDP_XML_ENCODING_NORMAL, &length); - - if (length > UCHAR_MAX) - dtd = SDP_URL_STR16; - - ret = sdp_data_alloc_with_length(dtd, url, length); - - free(url); - - return ret; -} - -sdp_data_t *sdp_xml_parse_text(const char *data, char encoding) -{ - uint8_t dtd = SDP_TEXT_STR8; - char *text; - uint32_t length; - sdp_data_t *ret; - - text = sdp_xml_parse_string_decode(data, encoding, &length); - - if (length > UCHAR_MAX) - dtd = SDP_TEXT_STR16; - - ret = sdp_data_alloc_with_length(dtd, text, length); - - free(text); - - return ret; -} - -sdp_data_t *sdp_xml_parse_nil(const char *data) -{ - return sdp_data_alloc(SDP_DATA_NIL, 0); -} - -#define DEFAULT_XML_DATA_SIZE 1024 - -struct sdp_xml_data *sdp_xml_data_alloc(void) -{ - struct sdp_xml_data *elem; - - elem = malloc(sizeof(struct sdp_xml_data)); - if (!elem) - return NULL; - - memset(elem, 0, sizeof(struct sdp_xml_data)); - - /* Null terminate the text */ - elem->size = DEFAULT_XML_DATA_SIZE; - elem->text = malloc(DEFAULT_XML_DATA_SIZE); - elem->text[0] = '\0'; - - return elem; -} - -void sdp_xml_data_free(struct sdp_xml_data *elem) -{ - if (elem->data) - sdp_data_free(elem->data); - - free(elem->name); - free(elem->text); - free(elem); -} - -struct sdp_xml_data *sdp_xml_data_expand(struct sdp_xml_data *elem) -{ - char *newbuf; - - newbuf = malloc(elem->size * 2); - if (!newbuf) - return NULL; - - memcpy(newbuf, elem->text, elem->size); - elem->size *= 2; - free(elem->text); - - elem->text = newbuf; - - return elem; -} - -sdp_data_t *sdp_xml_parse_datatype(const char *el, struct sdp_xml_data *elem, - sdp_record_t *record) -{ - const char *data = elem->text; - - if (!strcmp(el, "boolean")) - return sdp_xml_parse_int(data, SDP_BOOL); - else if (!strcmp(el, "uint8")) - return sdp_xml_parse_int(data, SDP_UINT8); - else if (!strcmp(el, "uint16")) - return sdp_xml_parse_int(data, SDP_UINT16); - else if (!strcmp(el, "uint32")) - return sdp_xml_parse_int(data, SDP_UINT32); - else if (!strcmp(el, "uint64")) - return sdp_xml_parse_int(data, SDP_UINT64); - else if (!strcmp(el, "uint128")) - return sdp_xml_parse_int(data, SDP_UINT128); - else if (!strcmp(el, "int8")) - return sdp_xml_parse_int(data, SDP_INT8); - else if (!strcmp(el, "int16")) - return sdp_xml_parse_int(data, SDP_INT16); - else if (!strcmp(el, "int32")) - return sdp_xml_parse_int(data, SDP_INT32); - else if (!strcmp(el, "int64")) - return sdp_xml_parse_int(data, SDP_INT64); - else if (!strcmp(el, "int128")) - return sdp_xml_parse_int(data, SDP_INT128); - else if (!strcmp(el, "uuid")) - return sdp_xml_parse_uuid(data, record); - else if (!strcmp(el, "url")) - return sdp_xml_parse_url(data); - else if (!strcmp(el, "text")) - return sdp_xml_parse_text(data, elem->type); - else if (!strcmp(el, "nil")) - return sdp_xml_parse_nil(data); - - return NULL; -} |