diff options
Diffstat (limited to 'src/rexmpp_xml.c')
| -rw-r--r-- | src/rexmpp_xml.c | 805 |
1 files changed, 805 insertions, 0 deletions
diff --git a/src/rexmpp_xml.c b/src/rexmpp_xml.c new file mode 100644 index 0000000..8b106ab --- /dev/null +++ b/src/rexmpp_xml.c @@ -0,0 +1,805 @@ +/** + @file rexmpp_xml.c + @brief XML structures and functions for rexmpp + @author defanor <defanor@uberspace.net> + @date 2023 + @copyright MIT license. +*/ + +#include <string.h> +#include <stdio.h> +#include <stdlib.h> +#include <fcntl.h> +#include "rexmpp.h" +#include "rexmpp_utf8.h" +#include "rexmpp_xml.h" +#include "rexmpp_random.h" + +#ifndef USE_RUST +void rexmpp_xml_qname_free (rexmpp_xml_qname_t *qname) { + if (qname->name != NULL) { + free(qname->name); + qname->name = NULL; + } + if (qname->namespace != NULL) { + free(qname->namespace); + qname->namespace = NULL; + } +} + +void rexmpp_xml_attribute_free (rexmpp_xml_attr_t *attr) { + if (attr == NULL) { + return; + } + rexmpp_xml_qname_free(&(attr->qname)); + if (attr->value != NULL) { + free(attr->value); + attr->value = NULL; + } + free(attr); +} + +void rexmpp_xml_attribute_free_list (rexmpp_xml_attr_t *attr) { + rexmpp_xml_attr_t *next = attr; + while (attr != NULL) { + next = attr->next; + rexmpp_xml_attribute_free(attr); + attr = next; + } +} + +void rexmpp_xml_free (rexmpp_xml_t *node) { + if (node == NULL) { + return; + } + if (node->type == REXMPP_XML_TEXT) { + if (node->alt.text != NULL) { + free(node->alt.text); + node->alt.text = NULL; + } + } if (node->type == REXMPP_XML_ELEMENT) { + rexmpp_xml_qname_free(&(node->alt.elem.qname)); + rexmpp_xml_attribute_free_list(node->alt.elem.attributes); + rexmpp_xml_free_list(node->alt.elem.children); + } + free(node); +} + +void rexmpp_xml_free_list (rexmpp_xml_t *node) { + rexmpp_xml_t *next = node; + while (node != NULL) { + next = node->next; + rexmpp_xml_free(node); + node = next; + } +} + +rexmpp_xml_t *rexmpp_xml_clone (rexmpp_xml_t *node) { + if (node == NULL) { + return NULL; + } + + if (node->type == REXMPP_XML_TEXT) { + return rexmpp_xml_new_text(node->alt.text); + } else if (node->type == REXMPP_XML_ELEMENT) { + rexmpp_xml_t *ret = + rexmpp_xml_new_elem(node->alt.elem.qname.name, + node->alt.elem.qname.namespace); + rexmpp_xml_attr_t **next_attr = &(ret->alt.elem.attributes); + rexmpp_xml_attr_t *old_attr; + for (old_attr = node->alt.elem.attributes; + old_attr != NULL; + old_attr = old_attr->next) + { + rexmpp_xml_attr_t *new_attr = + rexmpp_xml_attr_new(old_attr->qname.name, + old_attr->qname.namespace, + old_attr->value); + *next_attr = new_attr; + next_attr = &(new_attr->next); + } + + ret->alt.elem.children = + rexmpp_xml_clone_list(node->alt.elem.children); + return ret; + } + return NULL; +} + +rexmpp_xml_t *rexmpp_xml_clone_list (rexmpp_xml_t *node) { + rexmpp_xml_t *first, *last; + if (node == NULL) { + return NULL; + } + first = rexmpp_xml_clone(node); + for (last = first, node = node->next; + node != NULL; + last = last->next, node = node->next) + { + last->next = rexmpp_xml_clone(node); + } + return first; +} + +rexmpp_xml_t *rexmpp_xml_new_text (const char *str) { + rexmpp_xml_t *node = malloc(sizeof(rexmpp_xml_t)); + node->type = REXMPP_XML_TEXT; + node->alt.text = strdup(str); + node->next = NULL; + return node; +} + +rexmpp_xml_t *rexmpp_xml_new_text_len (const char *str, size_t len) { + rexmpp_xml_t *node = malloc(sizeof(rexmpp_xml_t)); + node->type = REXMPP_XML_TEXT; + node->alt.text = strndup(str, len); + node->next = NULL; + return node; +} + +void rexmpp_xml_add_child (rexmpp_xml_t *node, + rexmpp_xml_t *child) +{ + rexmpp_xml_t **last_ptr = &(node->alt.elem.children); + while (*last_ptr != NULL) { + last_ptr = &((*last_ptr)->next); + } + *last_ptr = child; +} + +int rexmpp_xml_add_text (rexmpp_xml_t *node, + const char *str) +{ + rexmpp_xml_t *text_node = rexmpp_xml_new_text(str); + if (text_node != NULL) { + rexmpp_xml_add_child(node, text_node); + return 0; + } + return -1; +} + +int rexmpp_xml_add_text_len (rexmpp_xml_t *node, + const char *str, + size_t len) +{ + rexmpp_xml_t *text_node = rexmpp_xml_new_text_len(str, len); + if (text_node != NULL) { + rexmpp_xml_add_child(node, text_node); + return 0; + } + return -1; +} + +rexmpp_xml_t *rexmpp_xml_new_elem (const char *name, + const char *namespace) +{ + rexmpp_xml_t *node = malloc(sizeof(rexmpp_xml_t)); + node->type = REXMPP_XML_ELEMENT; + node->alt.elem.qname.name = strdup(name); + if (namespace != NULL) { + node->alt.elem.qname.namespace = strdup(namespace); + } else { + node->alt.elem.qname.namespace = NULL; + } + node->alt.elem.attributes = NULL; + node->alt.elem.children = NULL; + node->next = NULL; + return node; +} + +rexmpp_xml_attr_t *rexmpp_xml_attr_new (const char *name, + const char *namespace, + const char *value) +{ + rexmpp_xml_attr_t *attr = malloc(sizeof(rexmpp_xml_attr_t)); + attr->qname.name = strdup(name); + if (namespace != NULL) { + attr->qname.namespace = strdup(namespace); + } else { + attr->qname.namespace = NULL; + } + attr->value = strdup(value); + attr->next = NULL; + return attr; +} + +int rexmpp_xml_add_attr_ns (rexmpp_xml_t *node, + const char *name, + const char *namespace, + const char *value) +{ + if (node == NULL || node->type != REXMPP_XML_ELEMENT) { + return -1; + } + rexmpp_xml_attr_t *attr = + rexmpp_xml_attr_new(name, namespace, value); + attr->next = node->alt.elem.attributes; + node->alt.elem.attributes = attr; + return 0; +} + +int rexmpp_xml_remove_attr_ns (rexmpp_xml_t *node, + const char *name, + const char *namespace) { + if (node == NULL || node->type != REXMPP_XML_ELEMENT) { + return -1; + } + + rexmpp_xml_attr_t **attr, *next_attr; + for (attr = &(node->alt.elem.attributes); *attr != NULL; attr = &((*attr)->next)) { + if (rexmpp_xml_attr_match(*attr, namespace, name)) { + next_attr = (*attr)->next; + rexmpp_xml_attribute_free(*attr); + *attr = next_attr; + return 0; + } + } + return 1; +} + +int rexmpp_xml_add_attr (rexmpp_xml_t *node, + const char *name, + const char *value) +{ + return rexmpp_xml_add_attr_ns(node, name, NULL, value); +} + +int rexmpp_xml_remove_attr (rexmpp_xml_t *node, + const char *name) { + return rexmpp_xml_remove_attr_ns(node, name, NULL); +} + +/* Adds a character, grows the string as needed. */ +static inline char *rexmpp_str_putc (char *str, size_t *len, char c) { + char *ret = str; + if ((*len) % 1024 == 0) { + ret = realloc(str, (*len) + 1024); + if (ret == NULL) { + /* A failure to realloc. */ + if (str != NULL) { + free(str); + } + return NULL; + } + } + ret[*len] = c; + *len = (*len) + 1; + return ret; +} + +static inline +char *rexmpp_str_putc_escaped (char *str, size_t *len, char c) { + char *ret = str; + char buf[7]; + char *esc = buf; + size_t i = 0; + size_t esc_len; + if (c == '<') { + esc = "<"; + } else if (c == '>') { + esc = ">"; + } else if (c == '&') { + esc = "&"; + } else if (c == '\'') { + esc = "'"; + } else if (c == '"') { + esc = """; + } else { + snprintf(esc, 7, "&#%u;", c); + } + esc_len = strlen(esc); + while (i < esc_len) { + ret = rexmpp_str_putc(ret, len, esc[i]); + i++; + } + return ret; +} + +char *rexmpp_xml_print_name (char *str, size_t *len, const char *name) { + char *ret = str; + size_t name_len = strlen(name); + size_t i = 0; + int32_t c = 0; /* matches ICU's UChar32 */ + size_t prev_i = 0, j; + do { + REXMPP_U8_NEXT(name, i, name_len, c); + if (c >= 0) { + if (c == ':' + || (c >= 'A' && c <= 'Z') + || c == '_' + || (c >= 'a' && c <= 'z') + || (c >= 0xC0 && c <= 0xD6) + || (c >= 0xD8 && c <= 0xF6) + || (c >= 0xF8 && c <= 0x2FF) + || (c >= 0x370 && c <= 0x37D) + || (c >= 0x37F && c <= 0x1FFF) + || (c >= 0x200C && c <= 0x200D) + || (c >= 0x2070 && c <= 0x218F) + || (c >= 0x2C00 && c <= 0x2FEF) + || (c >= 0x3001 && c <= 0xD7FF) + || (c >= 0xF900 && c <= 0xFDCF) + || (c >= 0xFDF0 && c <= 0xFFF0) + || (c >= 0x10000 && c <= 0xEFFFF) + || ((i > 0) && + (c == '-' + || c == '.' + || (c >= '0' && c <= '9') + || c == 0xB7 + || (c >= 0x0300 && c <= 0x036F) + || (c >= 0x203F && c <= 0x2040)))) + { + /* Print the allowed characters. */ + for (j = prev_i; j < i; j++) { + ret = rexmpp_str_putc(ret, len, name[j]); + } + } + } else { + /* Skip invalid characters. */ + i++; + } + prev_i = i; + } while (i < name_len); + return ret; +} + +char *rexmpp_xml_print_text (char *str, size_t *len, const char *text) { + char *ret = str; + size_t i = 0; + size_t text_len = strlen(text); + while (i < text_len && ret != NULL) { + char c = text[i]; + if (strchr("<&>'\"", c)) { + /* Escape the few special characters. */ + ret = rexmpp_str_putc_escaped(ret, len, c); + } else { + /* Write others as is. */ + ret = rexmpp_str_putc(ret, len, c); + } + i++; + } + return ret; +} + +char *rexmpp_xml_print_raw (char *str, size_t *len, const char *text) { + char *ret = str; + size_t i = 0; + size_t text_len = strlen(text); + while (i < text_len && ret != NULL) { + char c = text[i]; + ret = rexmpp_str_putc(ret, len, c); + i++; + } + return ret; +} + +static inline char *rexmpp_xml_print_indent (char *str, + size_t *len, + int indent) { + if (indent <= 0) { + return str; + } + int i; + char *ret = str; + for (i = 0; i < indent * 2; i++) { + ret = rexmpp_str_putc(ret, len, ' '); + } + return ret; +} + +char *rexmpp_xml_print (char *str, + size_t *len, + const rexmpp_xml_t *node, + int indent) { + char *ret = str; + if (node->type == REXMPP_XML_TEXT) { + ret = rexmpp_xml_print_text(ret, len, node->alt.text); + } else if (node->type == REXMPP_XML_ELEMENT) { + if (indent > 0) { + ret = rexmpp_str_putc(ret, len, '\n'); + ret = rexmpp_xml_print_indent(ret, len, indent); + } + ret = rexmpp_str_putc(ret, len, '<'); + ret = rexmpp_xml_print_name(ret, len, node->alt.elem.qname.name); + if (node->alt.elem.qname.namespace != NULL) { + ret = rexmpp_xml_print_raw(ret, len, " xmlns=\""); + ret = rexmpp_xml_print_text(ret, len, node->alt.elem.qname.namespace); + ret = rexmpp_str_putc(ret, len, '"'); + } + if (node->alt.elem.attributes != NULL) { + rexmpp_xml_attr_t *attr; + for (attr = node->alt.elem.attributes; attr != NULL; attr = attr->next) { + ret = rexmpp_str_putc(ret, len, ' '); + /* Ignoring namespaces here for now. */ + ret = rexmpp_xml_print_name(ret, len, attr->qname.name); + ret = rexmpp_xml_print_raw(ret, len, "=\""); + ret = rexmpp_xml_print_text(ret, len, attr->value); + ret = rexmpp_str_putc(ret, len, '"'); + } + } + if (node->alt.elem.children == NULL) { + ret = rexmpp_xml_print_raw(ret, len, "/>"); + } else { + ret = rexmpp_str_putc(ret, len, '>'); + rexmpp_xml_t *child; + int last_child_is_textual = 0; + for (child = rexmpp_xml_children(node); + child != NULL; + child = child->next) + { + ret = rexmpp_xml_print(ret, len, child, + indent > -1 ? indent + 1 : -1); + last_child_is_textual = child->type == REXMPP_XML_TEXT; + } + if (indent >= 0 && ! last_child_is_textual) { + ret = rexmpp_str_putc(ret, len, '\n'); + ret = rexmpp_xml_print_indent(ret, len, indent); + } + ret = rexmpp_xml_print_raw(ret, len, "</"); + ret = rexmpp_xml_print_name(ret, len, node->alt.elem.qname.name); + ret = rexmpp_str_putc(ret, len, '>'); + } + } + return ret; +} + +char *rexmpp_xml_serialize (const rexmpp_xml_t *node, int pretty) { + size_t s_len = 0; + char *s = NULL; + s = rexmpp_xml_print(s, &s_len, node, pretty ? 0 : -1); + s = rexmpp_str_putc(s, &s_len, '\0'); + return s; +} + +rexmpp_xml_t * +rexmpp_xml_add_id (rexmpp_xml_t *node) +{ + char *buf = rexmpp_random_id(); + if (buf == NULL) { + return NULL; + } + rexmpp_xml_add_attr(node, "id", buf); + free(buf); + return node; +} +#endif + +/* These SAX handlers are similar to those from rexmpp.c, and perhaps + can be reused. */ +void rexmpp_xml_parse_sax_characters (struct rexmpp_xml_builder *builder, + const char *ch, + size_t len) +{ + if (builder->current != NULL) { + rexmpp_xml_t *last_node = builder->current->alt.elem.children; + if (last_node != NULL && last_node->type == REXMPP_XML_TEXT) { + /* The last child is textual as well, just extend it */ + size_t last_len = strlen(last_node->alt.text); + char *new_alt_text = realloc(last_node->alt.text, last_len + len + 1); + if (new_alt_text == NULL) { + /* TODO: Would be nice a report an error here. */ + return; + } + last_node->alt.text = new_alt_text; + strncpy(last_node->alt.text + last_len, ch, len); + last_node->alt.text[last_len + len] = '\0'; + } else { + rexmpp_xml_t *text_node = rexmpp_xml_new_text_len(ch, len); + if (text_node != NULL) { + text_node->next = builder->current->alt.elem.children; + builder->current->alt.elem.children = text_node; + } + } + } +} + +void rexmpp_xml_parse_sax_start_elem_ns (struct rexmpp_xml_builder *builder, + const char *name, + const char *namespace, + rexmpp_xml_attr_t *attributes) +{ + if (builder->current == NULL && builder->root == NULL) { + /* Just started */ + builder->current = rexmpp_xml_new_elem(name, namespace); + builder->root = builder->current; + } else if (builder->current != NULL) { + /* Parsing is in progress */ + rexmpp_xml_t *node = rexmpp_xml_new_elem(name, namespace); + node->next = builder->current->alt.elem.children; + builder->current->alt.elem.children = node; + builder->current = node; + } else { + /* The parsind is over, but we are receiving these events + still. Just free the attribute lists, ignore the rest. */ + rexmpp_xml_attribute_free_list(attributes); + } + builder->current->alt.elem.attributes = attributes; +} + +void rexmpp_xml_parse_sax_end_elem_ns (struct rexmpp_xml_builder *builder) +{ + if (builder->current != builder->root) { + /* Find the parent, set it as current element. */ + rexmpp_xml_t *parent = builder->root; + while (parent->alt.elem.children != builder->current) { + parent = parent->alt.elem.children; + } + builder->current = parent; + } else { + /* Done parsing this element; reverse all the lists of children. */ + builder->current = NULL; + rexmpp_xml_reverse_children(builder->root); + } +} + +struct rexmpp_xml_parser_handlers builder_sax = { + (rexmpp_xml_parser_element_start)rexmpp_xml_parse_sax_start_elem_ns, + (rexmpp_xml_parser_element_end)rexmpp_xml_parse_sax_end_elem_ns, + (rexmpp_xml_parser_characters)rexmpp_xml_parse_sax_characters +}; + +rexmpp_xml_t *rexmpp_xml_parse (const char *str, int str_len) { + struct rexmpp_xml_builder builder = { NULL, NULL }; + rexmpp_xml_parser_ctx_t parser = + rexmpp_xml_parser_new(&builder_sax, &builder); + rexmpp_xml_parser_feed(parser, str, str_len, 1); + rexmpp_xml_parser_free(parser); + if (builder.current != NULL) { + /* The parsing is not complete. */ + rexmpp_xml_free(builder.root); + return NULL; + } + return builder.root; +} + +rexmpp_xml_t *rexmpp_xml_read_fd (int fd) { + struct rexmpp_xml_builder builder = { NULL, NULL }; + rexmpp_xml_parser_ctx_t parser = + rexmpp_xml_parser_new(&builder_sax, &builder); + if (parser == NULL) { + return NULL; + } + + char buf[4096]; + ssize_t buf_len = 0; + do { + buf_len = read(fd, buf, 4096); + if (buf_len > 0) { + rexmpp_xml_parser_feed(parser, buf, buf_len, 0); + } + } while (buf_len > 0 && + ! (builder.root != NULL && builder.current == NULL) ); + + rexmpp_xml_parser_free(parser); + + if (builder.current != NULL) { + /* The parsing is not complete. */ + rexmpp_xml_free(builder.root); + return NULL; + } + + return builder.root; +} + +rexmpp_xml_t *rexmpp_xml_read_file (const char *path) { + int fd = open(path, O_RDONLY); + if (fd < 0) { + return NULL; + } + rexmpp_xml_t *node = rexmpp_xml_read_fd(fd); + close(fd); + return node; +} + +#ifndef USE_RUST +int rexmpp_xml_write_file (const char *path, rexmpp_xml_t* node) { + FILE *fd = fopen(path, "w"); + if (fd == NULL) { + return -1; + } + char *serialized = rexmpp_xml_serialize(node, 1); + fputs("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n", fd); + fputs(serialized, fd); + fclose(fd); + return 0; +} + +unsigned int rexmpp_xml_siblings_count (rexmpp_xml_t *node) { + unsigned int i = 0; + for (i = 0; node != NULL; i++) { + node = node->next; + } + return i; +} + +int rexmpp_xml_match (rexmpp_xml_t *node, + const char *namespace, + const char *name) +{ + if (node == NULL) { + return 0; + } + if (node->type != REXMPP_XML_ELEMENT) { + return 0; + } + if (name != NULL) { + if (strcmp(name, node->alt.elem.qname.name) != 0) { + return 0; + } + } + if (namespace != NULL) { + if (node->alt.elem.qname.namespace == NULL && + strcmp(namespace, "jabber:client") != 0) { + return 0; + } else if (node->alt.elem.qname.namespace != NULL) { + if (strcmp(namespace, node->alt.elem.qname.namespace) != 0) { + return 0; + } + } + } + return 1; +} + +int rexmpp_xml_attr_match (rexmpp_xml_attr_t *attr, + const char *namespace, + const char *name) +{ + if (attr == NULL) { + return 0; + } + if (name != NULL) { + if (strcmp(name, attr->qname.name) != 0) { + return 0; + } + } + if (namespace != NULL) { + if (attr->qname.namespace == NULL && + strcmp(namespace, "jabber:client") != 0) { + return 0; + } else if (strcmp(namespace, attr->qname.namespace) != 0) { + return 0; + } + } + return 1; +} + +int rexmpp_xml_is_stanza (rexmpp_xml_t *node) { + return rexmpp_xml_match(node, "jabber:client", "message") || + rexmpp_xml_match(node, "jabber:client", "iq") || + rexmpp_xml_match(node, "jabber:client", "presence"); +} + +rexmpp_xml_t *rexmpp_xml_error (const char *type, const char *condition) { + rexmpp_xml_t * error = rexmpp_xml_new_elem("error", NULL); + rexmpp_xml_add_attr(error, "type", type); + rexmpp_xml_t * cond = + rexmpp_xml_new_elem(condition, "urn:ietf:params:xml:ns:xmpp-stanzas"); + rexmpp_xml_add_child(error, cond); + return error; +} + +rexmpp_xml_attr_t * +rexmpp_xml_find_attr (rexmpp_xml_t *node, + const char *name, + const char *namespace) +{ + if (node == NULL || node->type != REXMPP_XML_ELEMENT) { + return NULL; + } + rexmpp_xml_attr_t *attr; + for (attr = node->alt.elem.attributes; attr != NULL; attr = attr->next) { + if (rexmpp_xml_attr_match(attr, namespace, name)) { + return attr; + } + } + return NULL; +} + +const char *rexmpp_xml_find_attr_val_ns (rexmpp_xml_t *node, + const char *name, + const char *namespace) { + rexmpp_xml_attr_t *attr = rexmpp_xml_find_attr(node, name, namespace); + if (attr != NULL) { + return attr->value; + } + return NULL; +} + +const char *rexmpp_xml_find_attr_val (rexmpp_xml_t *node, + const char *name) { + return rexmpp_xml_find_attr_val_ns(node, name, NULL); +} + +rexmpp_xml_t * +rexmpp_xml_find_child (rexmpp_xml_t *node, + const char *namespace, + const char *name) +{ + if (node == NULL || node->type != REXMPP_XML_ELEMENT) { + return NULL; + } + rexmpp_xml_t *child; + for (child = node->alt.elem.children; child != NULL; child = child->next) { + if (rexmpp_xml_match(child, namespace, name)) { + return child; + } + } + return NULL; +} + +int rexmpp_xml_eq (rexmpp_xml_t *n1, rexmpp_xml_t *n2) { + /* Just serialize and compare strings for now: awkward, but + simple. */ + char *n1str = rexmpp_xml_serialize(n1, 0); + char *n2str = rexmpp_xml_serialize(n2, 0); + int eq = (strcmp(n1str, n2str) == 0); + free(n1str); + free(n2str); + return eq; +} + +rexmpp_xml_t *rexmpp_xml_children (const rexmpp_xml_t *node) { + if (node != NULL && node->type == REXMPP_XML_ELEMENT) { + return node->alt.elem.children; + } + return NULL; +} + +rexmpp_xml_t *rexmpp_xml_first_elem_child (rexmpp_xml_t *node) { + rexmpp_xml_t *child; + for (child = rexmpp_xml_children(node); child != NULL; child = child->next) { + if (child->type == REXMPP_XML_ELEMENT) { + return child; + } + } + return NULL; +} + +rexmpp_xml_t *rexmpp_xml_next_elem_sibling (rexmpp_xml_t *node) { + if (node == NULL) { + return NULL; + } + rexmpp_xml_t *sibling; + for (sibling = node->next; sibling != NULL; sibling = sibling->next) { + if (sibling->type == REXMPP_XML_ELEMENT) { + return sibling; + } + } + return NULL; +} + +char *rexmpp_xml_text (rexmpp_xml_t *node) { + if (node != NULL && node->type == REXMPP_XML_TEXT) { + return node->alt.text; + } + return NULL; +} + +char *rexmpp_xml_text_child (rexmpp_xml_t *node) { + return rexmpp_xml_text(rexmpp_xml_children(node)); +} + +rexmpp_xml_t *rexmpp_xml_reverse_list (rexmpp_xml_t *node) { + rexmpp_xml_t *next, *prev = NULL; + while (node != NULL) { + next = node->next; + node->next = prev; + prev = node; + node = next; + } + return prev; +} + +void rexmpp_xml_reverse_children (rexmpp_xml_t *node) { + if (node == NULL || node->type != REXMPP_XML_ELEMENT) { + return; + } + node->alt.elem.children = rexmpp_xml_reverse_list(node->alt.elem.children); + rexmpp_xml_t *cur; + for (cur = node->alt.elem.children; cur != NULL; cur = cur->next) { + if (cur->type == REXMPP_XML_ELEMENT && cur->alt.elem.children != NULL) { + rexmpp_xml_reverse_children(cur); + } + } +} + +#endif |