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-rw-r--r--backend/impress/iksemel.c1882
1 files changed, 1882 insertions, 0 deletions
diff --git a/backend/impress/iksemel.c b/backend/impress/iksemel.c
new file mode 100644
index 00000000..9908e132
--- /dev/null
+++ b/backend/impress/iksemel.c
@@ -0,0 +1,1882 @@
+/* iksemel (XML parser for Jabber)
+** Copyright (C) 2000-2003 Gurer Ozen <[email protected]>
+** This code is free software; you can redistribute it and/or
+** modify it under the terms of GNU Lesser General Public License.
+*/
+
+/* minimum sax buffer size */
+#define SAX_BUFFER_MIN_SIZE 128
+
+/* sax parser structure plus extra data of dom parser */
+#define DEFAULT_DOM_CHUNK_SIZE 256
+
+/* sax parser structure plus extra data of stream parser */
+#define DEFAULT_STREAM_CHUNK_SIZE 256
+
+/* iks structure, its data, child iks structures, for stream parsing */
+#define DEFAULT_IKS_CHUNK_SIZE 1024
+
+/* iks structure, its data, child iks structures, for file parsing */
+#define DEFAULT_DOM_IKS_CHUNK_SIZE 2048
+
+/* rule structure and from/to/id/ns strings */
+#define DEFAULT_RULE_CHUNK_SIZE 128
+
+/* file is read by blocks with this size */
+#define FILE_IO_BUF_SIZE 4096
+
+/* network receive buffer */
+#define NET_IO_BUF_SIZE 4096
+/* iksemel (XML parser for Jabber)
+** Copyright (C) 2000-2003 Gurer Ozen <[email protected]>
+** This code is free software; you can redistribute it and/or
+** modify it under the terms of GNU Lesser General Public License.
+*/
+
+#include <config.h>
+#include <errno.h>
+
+#include "common.h"
+#include "iksemel.h"
+
+/***** malloc wrapper *****/
+
+static void *(*my_malloc_func)(size_t size);
+static void (*my_free_func)(void *ptr);
+
+void *
+iks_malloc (size_t size)
+{
+ if (my_malloc_func)
+ return my_malloc_func (size);
+ else
+ return malloc (size);
+}
+
+void
+iks_free (void *ptr)
+{
+ if (my_free_func)
+ my_free_func (ptr);
+ else
+ free (ptr);
+}
+
+void
+iks_set_mem_funcs (void *(*malloc_func)(size_t size), void (*free_func)(void *ptr))
+{
+ my_malloc_func = malloc_func;
+ my_free_func = free_func;
+}
+
+/***** NULL-safe Functions *****/
+
+char *
+iks_strdup (const char *src)
+{
+ if (src) return strdup(src);
+ return NULL;
+}
+
+char *
+iks_strcat (char *dest, const char *src)
+{
+ size_t len;
+
+ if (!src) return dest;
+
+ len = strlen (src);
+ memcpy (dest, src, len);
+ dest[len] = '\0';
+ return dest + len;
+}
+
+int
+iks_strcmp (const char *a, const char *b)
+{
+ if (!a || !b) return -1;
+ return strcmp (a, b);
+}
+
+int
+iks_strcasecmp (const char *a, const char *b)
+{
+ if (!a || !b) return -1;
+ return strcasecmp (a, b);
+}
+
+int
+iks_strncmp (const char *a, const char *b, size_t n)
+{
+ if (!a || !b) return -1;
+ return strncmp (a, b, n);
+}
+
+int
+iks_strncasecmp (const char *a, const char *b, size_t n)
+{
+ if (!a || !b) return -1;
+ return strncasecmp (a, b, n);
+}
+
+size_t
+iks_strlen (const char *src)
+{
+ if (!src) return 0;
+ return strlen (src);
+}
+
+/***** XML Escaping *****/
+
+char *
+iks_escape (ikstack *s, char *src, size_t len)
+{
+ char *ret;
+ int i, j, nlen;
+
+ if (!src || !s) return NULL;
+ if (len == -1) len = strlen (src);
+
+ nlen = len;
+ for (i=0; i<len; i++) {
+ switch (src[i]) {
+ case '&': nlen += 4; break;
+ case '<': nlen += 3; break;
+ case '>': nlen += 3; break;
+ case '\'': nlen += 5; break;
+ case '"': nlen += 5; break;
+ }
+ }
+ if (len == nlen) return src;
+
+ ret = iks_stack_alloc (s, nlen + 1);
+ if (!ret) return NULL;
+
+ for (i=j=0; i<len; i++) {
+ switch (src[i]) {
+ case '&': memcpy (&ret[j], "&amp;", 5); j += 5; break;
+ case '\'': memcpy (&ret[j], "&apos;", 6); j += 6; break;
+ case '"': memcpy (&ret[j], "&quot;", 6); j += 6; break;
+ case '<': memcpy (&ret[j], "&lt;", 4); j += 4; break;
+ case '>': memcpy (&ret[j], "&gt;", 4); j += 4; break;
+ default: ret[j++] = src[i];
+ }
+ }
+ ret[j] = '\0';
+
+ return ret;
+}
+
+char *
+iks_unescape (ikstack *s, char *src, size_t len)
+{
+ int i,j;
+ char *ret;
+
+ if (!s || !src) return NULL;
+ if (!strchr (src, '&')) return src;
+ if (len == -1) len = strlen (src);
+
+ ret = iks_stack_alloc (s, len + 1);
+ if (!ret) return NULL;
+
+ for (i=j=0; i<len; i++) {
+ if (src[i] == '&') {
+ i++;
+ if (strncmp (&src[i], "amp;", 4) == 0) {
+ ret[j] = '&';
+ i += 3;
+ } else if (strncmp (&src[i], "quot;", 5) == 0) {
+ ret[j] = '"';
+ i += 4;
+ } else if (strncmp (&src[i], "apos;", 5) == 0) {
+ ret[j] = '\'';
+ i += 4;
+ } else if (strncmp (&src[i], "lt;", 3) == 0) {
+ ret[j] = '<';
+ i += 2;
+ } else if (strncmp (&src[i], "gt;", 3) == 0) {
+ ret[j] = '>';
+ i += 2;
+ } else {
+ ret[j] = src[--i];
+ }
+ } else {
+ ret[j] = src[i];
+ }
+ j++;
+ }
+ ret[j] = '\0';
+
+ return ret;
+}
+/* iksemel (XML parser for Jabber)
+** Copyright (C) 2000-2004 Gurer Ozen <[email protected]>
+** This code is free software; you can redistribute it and/or
+** modify it under the terms of GNU Lesser General Public License.
+*/
+
+#include "common.h"
+#include "iksemel.h"
+
+struct align_test { char a; double b; };
+#define DEFAULT_ALIGNMENT ((size_t) ((char *) &((struct align_test *) 0)->b - (char *) 0))
+#define ALIGN_MASK ( DEFAULT_ALIGNMENT - 1 )
+#define MIN_CHUNK_SIZE ( DEFAULT_ALIGNMENT * 8 )
+#define MIN_ALLOC_SIZE DEFAULT_ALIGNMENT
+#define ALIGN(x) ( (x) + (DEFAULT_ALIGNMENT - ( (x) & ALIGN_MASK)) )
+
+typedef struct ikschunk_struct {
+ struct ikschunk_struct *next;
+ size_t size;
+ size_t used;
+ size_t last;
+ char data[4];
+} ikschunk;
+
+struct ikstack_struct {
+ size_t allocated;
+ ikschunk *meta;
+ ikschunk *data;
+};
+
+static ikschunk *
+find_space (ikstack *s, ikschunk *c, size_t size)
+{
+ /* FIXME: dont use *2 after over allocated chunks */
+ while (1) {
+ if (c->size - c->used >= size) return c;
+ if (!c->next) {
+ if ((c->size * 2) > size) size = c->size * 2;
+ c->next = iks_malloc (sizeof (ikschunk) + size);
+ if (!c->next) return NULL;
+ s->allocated += sizeof (ikschunk) + size;
+ c = c->next;
+ c->next = NULL;
+ c->size = size;
+ c->used = 0;
+ c->last = (size_t) -1;
+ return c;
+ }
+ c = c->next;
+ }
+ return NULL;
+}
+
+ikstack *
+iks_stack_new (size_t meta_chunk, size_t data_chunk)
+{
+ ikstack *s;
+ size_t len;
+
+ if (meta_chunk < MIN_CHUNK_SIZE) meta_chunk = MIN_CHUNK_SIZE;
+ if (meta_chunk & ALIGN_MASK) meta_chunk = ALIGN (meta_chunk);
+ if (data_chunk < MIN_CHUNK_SIZE) data_chunk = MIN_CHUNK_SIZE;
+ if (data_chunk & ALIGN_MASK) data_chunk = ALIGN (data_chunk);
+
+ len = sizeof (ikstack) + meta_chunk + data_chunk + (sizeof (ikschunk) * 2);
+ s = iks_malloc (len);
+ if (!s) return NULL;
+ s->allocated = len;
+ s->meta = (ikschunk *) ((char *) s + sizeof (ikstack));
+ s->meta->next = NULL;
+ s->meta->size = meta_chunk;
+ s->meta->used = 0;
+ s->meta->last = (size_t) -1;
+ s->data = (ikschunk *) ((char *) s + sizeof (ikstack) + sizeof (ikschunk) + meta_chunk);
+ s->data->next = NULL;
+ s->data->size = data_chunk;
+ s->data->used = 0;
+ s->data->last = (size_t) -1;
+ return s;
+}
+
+void *
+iks_stack_alloc (ikstack *s, size_t size)
+{
+ ikschunk *c;
+ void *mem;
+
+ if (size < MIN_ALLOC_SIZE) size = MIN_ALLOC_SIZE;
+ if (size & ALIGN_MASK) size = ALIGN (size);
+
+ c = find_space (s, s->meta, size);
+ if (!c) return NULL;
+ mem = c->data + c->used;
+ c->used += size;
+ return mem;
+}
+
+char *
+iks_stack_strdup (ikstack *s, const char *src, size_t len)
+{
+ ikschunk *c;
+ char *dest;
+
+ if (!src) return NULL;
+ if (0 == len) len = strlen (src);
+
+ c = find_space (s, s->data, len + 1);
+ if (!c) return NULL;
+ dest = c->data + c->used;
+ c->last = c->used;
+ c->used += len + 1;
+ memcpy (dest, src, len);
+ dest[len] = '\0';
+ return dest;
+}
+
+char *
+iks_stack_strcat (ikstack *s, char *old, size_t old_len, const char *src, size_t src_len)
+{
+ char *ret;
+ ikschunk *c;
+
+ if (!old) {
+ return iks_stack_strdup (s, src, src_len);
+ }
+ if (0 == old_len) old_len = strlen (old);
+ if (0 == src_len) src_len = strlen (src);
+
+ for (c = s->data; c; c = c->next) {
+ if (c->data + c->last == old) break;
+ }
+ if (!c) {
+ c = find_space (s, s->data, old_len + src_len + 1);
+ if (!c) return NULL;
+ ret = c->data + c->used;
+ c->last = c->used;
+ c->used += old_len + src_len + 1;
+ memcpy (ret, old, old_len);
+ memcpy (ret + old_len, src, src_len);
+ ret[old_len + src_len] = '\0';
+ return ret;
+ }
+
+ if (c->size - c->used > src_len) {
+ ret = c->data + c->last;
+ memcpy (ret + old_len, src, src_len);
+ c->used += src_len;
+ ret[old_len + src_len] = '\0';
+ } else {
+ /* FIXME: decrease c->used before moving string to new place */
+ c = find_space (s, s->data, old_len + src_len + 1);
+ if (!c) return NULL;
+ c->last = c->used;
+ ret = c->data + c->used;
+ memcpy (ret, old, old_len);
+ c->used += old_len;
+ memcpy (c->data + c->used, src, src_len);
+ c->used += src_len;
+ c->data[c->used] = '\0';
+ c->used++;
+ }
+ return ret;
+}
+
+void
+iks_stack_stat (ikstack *s, size_t *allocated, size_t *used)
+{
+ ikschunk *c;
+
+ if (allocated) {
+ *allocated = s->allocated;
+ }
+ if (used) {
+ *used = 0;
+ for (c = s->meta; c; c = c->next) {
+ (*used) += c->used;
+ }
+ for (c = s->data; c; c = c->next) {
+ (*used) += c->used;
+ }
+ }
+}
+
+void
+iks_stack_delete (ikstack *s)
+{
+ ikschunk *c, *tmp;
+
+ c = s->meta->next;
+ while (c) {
+ tmp = c->next;
+ iks_free (c);
+ c = tmp;
+ }
+ c = s->data->next;
+ while (c) {
+ tmp = c->next;
+ iks_free (c);
+ c = tmp;
+ }
+ iks_free (s);
+}
+/* iksemel (XML parser for Jabber)
+** Copyright (C) 2000-2004 Gurer Ozen <[email protected]>
+** This code is free software; you can redistribute it and/or
+** modify it under the terms of GNU Lesser General Public License.
+*/
+
+#include "common.h"
+#include "iksemel.h"
+
+enum cons_e {
+ C_CDATA = 0,
+ C_TAG_START,
+ C_TAG,
+ C_TAG_END,
+ C_ATTRIBUTE,
+ C_ATTRIBUTE_1,
+ C_ATTRIBUTE_2,
+ C_VALUE,
+ C_VALUE_APOS,
+ C_VALUE_QUOT,
+ C_WHITESPACE,
+ C_ENTITY,
+ C_COMMENT,
+ C_COMMENT_1,
+ C_COMMENT_2,
+ C_COMMENT_3,
+ C_MARKUP,
+ C_MARKUP_1,
+ C_SECT,
+ C_SECT_CDATA,
+ C_SECT_CDATA_1,
+ C_SECT_CDATA_2,
+ C_SECT_CDATA_3,
+ C_SECT_CDATA_4,
+ C_SECT_CDATA_C,
+ C_SECT_CDATA_E,
+ C_SECT_CDATA_E2,
+ C_PI
+};
+
+/* if you add a variable here, dont forget changing iks_parser_reset */
+struct iksparser_struct {
+ ikstack *s;
+ void *user_data;
+ iksTagHook *tagHook;
+ iksCDataHook *cdataHook;
+ iksDeleteHook *deleteHook;
+ /* parser context */
+ char *stack;
+ size_t stack_pos;
+ size_t stack_max;
+
+ enum cons_e context;
+ enum cons_e oldcontext;
+
+ char *tag_name;
+ enum ikstagtype tagtype;
+
+ unsigned int attmax;
+ unsigned int attcur;
+ int attflag;
+ char **atts;
+ int valflag;
+
+ unsigned int entpos;
+ char entity[8];
+
+ unsigned long nr_bytes;
+ unsigned long nr_lines;
+
+ int uni_max;
+ int uni_len;
+};
+
+iksparser *
+iks_sax_new (void *user_data, iksTagHook *tagHook, iksCDataHook *cdataHook)
+{
+ iksparser *prs;
+
+ prs = iks_malloc (sizeof (iksparser));
+ if (NULL == prs) return NULL;
+ memset (prs, 0, sizeof (iksparser));
+ prs->user_data = user_data;
+ prs->tagHook = tagHook;
+ prs->cdataHook = cdataHook;
+ return prs;
+}
+
+iksparser *
+iks_sax_extend (ikstack *s, void *user_data, iksTagHook *tagHook, iksCDataHook *cdataHook, iksDeleteHook *deleteHook)
+{
+ iksparser *prs;
+
+ prs = iks_stack_alloc (s, sizeof (iksparser));
+ if (NULL == prs) return NULL;
+ memset (prs, 0, sizeof (iksparser));
+ prs->s = s;
+ prs->user_data = user_data;
+ prs->tagHook = tagHook;
+ prs->cdataHook = cdataHook;
+ prs->deleteHook = deleteHook;
+ return prs;
+}
+
+ikstack *
+iks_parser_stack (iksparser *prs)
+{
+ return prs->s;
+}
+
+void *
+iks_user_data (iksparser *prs)
+{
+ return prs->user_data;
+}
+
+unsigned long
+iks_nr_bytes (iksparser *prs)
+{
+ return prs->nr_bytes;
+}
+
+unsigned long
+iks_nr_lines (iksparser *prs)
+{
+ return prs->nr_lines;
+}
+
+#define IS_WHITESPACE(x) ' ' == (x) || '\t' == (x) || '\r' == (x) || '\n' == (x)
+#define NOT_WHITESPACE(x) ' ' != (x) && '\t' != (x) && '\r' != (x) && '\n' != (x)
+
+static int
+stack_init (iksparser *prs)
+{
+ prs->stack = iks_malloc (128);
+ if (!prs->stack) return 0;
+ prs->stack_max = 128;
+ prs->stack_pos = 0;
+ return 1;
+}
+
+static int
+stack_expand (iksparser *prs, int len)
+{
+ size_t need;
+ off_t diff;
+ char *tmp;
+ need = len - (prs->stack_max - prs->stack_pos);
+ if (need < prs->stack_max) {
+ need = prs->stack_max * 2;
+ } else {
+ need = prs->stack_max + (need * 1.2);
+ }
+ tmp = iks_malloc (need);
+ if (!tmp) return 0;
+ diff = tmp - prs->stack;
+ memcpy (tmp, prs->stack, prs->stack_max);
+ iks_free (prs->stack);
+ prs->stack = tmp;
+ prs->stack_max = need;
+ prs->tag_name += diff;
+ if (prs->attflag != 0) {
+ int i = 0;
+ while (i < (prs->attmax * 2)) {
+ if (prs->atts[i]) prs->atts[i] += diff;
+ i++;
+ }
+ }
+ return 1;
+}
+
+#define STACK_INIT \
+ if (NULL == prs->stack && 0 == stack_init (prs)) return IKS_NOMEM
+
+#define STACK_PUSH_START (prs->stack + prs->stack_pos)
+
+#define STACK_PUSH(buf,len) \
+{ \
+ char *sbuf = (buf); \
+ size_t slen = (len); \
+ if (prs->stack_max - prs->stack_pos <= slen) { \
+ if (0 == stack_expand (prs, slen)) return IKS_NOMEM; \
+ } \
+ memcpy (prs->stack + prs->stack_pos, sbuf, slen); \
+ prs->stack_pos += slen; \
+}
+
+#define STACK_PUSH_END \
+{ \
+ if (prs->stack_pos >= prs->stack_max) { \
+ if (0 == stack_expand (prs, 1)) return IKS_NOMEM; \
+ } \
+ prs->stack[prs->stack_pos] = '\0'; \
+ prs->stack_pos++; \
+}
+
+static enum ikserror
+sax_core (iksparser *prs, char *buf, int len)
+{
+ enum ikserror err;
+ int pos = 0, old = 0, re, stack_old = -1;
+ unsigned char c;
+
+ while (pos < len) {
+ re = 0;
+ c = buf[pos];
+ if (0 == c || 0xFE == c || 0xFF == c) return IKS_BADXML;
+ if (prs->uni_max) {
+ if ((c & 0xC0) != 0x80) return IKS_BADXML;
+ prs->uni_len++;
+ if (prs->uni_len == prs->uni_max) prs->uni_max = 0;
+ goto cont;
+ } else {
+ if (c & 0x80) {
+ unsigned char mask;
+ if ((c & 0x60) == 0x40) {
+ prs->uni_max = 2;
+ mask = 0x1F;
+ } else if ((c & 0x70) == 0x60) {
+ prs->uni_max = 3;
+ mask = 0x0F;
+ } else if ((c & 0x78) == 0x70) {
+ prs->uni_max = 4;
+ mask = 0x07;
+ } else if ((c & 0x7C) == 0x78) {
+ prs->uni_max = 5;
+ mask = 0x03;
+ } else if ((c & 0x7E) == 0x7C) {
+ prs->uni_max = 6;
+ mask = 0x01;
+ } else {
+ return IKS_BADXML;
+ }
+ if ((c & mask) == 0) return IKS_BADXML;
+ prs->uni_len = 1;
+ if (stack_old == -1) stack_old = pos;
+ goto cont;
+ }
+ }
+
+ switch (prs->context) {
+ case C_CDATA:
+ if ('&' == c) {
+ if (old < pos && prs->cdataHook) {
+ err = prs->cdataHook (prs->user_data, &buf[old], pos - old);
+ if (IKS_OK != err) return err;
+ }
+ prs->context = C_ENTITY;
+ prs->entpos = 0;
+ break;
+ }
+ if ('<' == c) {
+ if (old < pos && prs->cdataHook) {
+ err = prs->cdataHook (prs->user_data, &buf[old], pos - old);
+ if (IKS_OK != err) return err;
+ }
+ STACK_INIT;
+ prs->tag_name = STACK_PUSH_START;
+ if (!prs->tag_name) return IKS_NOMEM;
+ prs->context = C_TAG_START;
+ }
+ break;
+
+ case C_TAG_START:
+ prs->context = C_TAG;
+ if ('/' == c) {
+ prs->tagtype = IKS_CLOSE;
+ break;
+ }
+ if ('?' == c) {
+ prs->context = C_PI;
+ break;
+ }
+ if ('!' == c) {
+ prs->context = C_MARKUP;
+ break;
+ }
+ prs->tagtype = IKS_OPEN;
+ stack_old = pos;
+ break;
+
+ case C_TAG:
+ if (IS_WHITESPACE(c)) {
+ if (IKS_CLOSE == prs->tagtype)
+ prs->oldcontext = C_TAG_END;
+ else
+ prs->oldcontext = C_ATTRIBUTE;
+ prs->context = C_WHITESPACE;
+ if (stack_old != -1) STACK_PUSH (buf + stack_old, pos - stack_old);
+ stack_old = -1;
+ STACK_PUSH_END;
+ break;
+ }
+ if ('/' == c) {
+ if (IKS_CLOSE == prs->tagtype) return IKS_BADXML;
+ prs->tagtype = IKS_SINGLE;
+ prs->context = C_TAG_END;
+ if (stack_old != -1) STACK_PUSH (buf + stack_old, pos - stack_old);
+ stack_old = -1;
+ STACK_PUSH_END;
+ break;
+ }
+ if ('>' == c) {
+ prs->context = C_TAG_END;
+ if (stack_old != -1) STACK_PUSH (buf + stack_old, pos - stack_old);
+ stack_old = -1;
+ STACK_PUSH_END;
+ re = 1;
+ }
+ if (stack_old == -1) stack_old = pos;
+ break;
+
+ case C_TAG_END:
+ if (c != '>') return IKS_BADXML;
+ if (prs->tagHook) {
+ char **tmp;
+ if (prs->attcur == 0) tmp = NULL; else tmp = prs->atts;
+ err = prs->tagHook (prs->user_data, prs->tag_name, tmp, prs->tagtype);
+ if (IKS_OK != err) return err;
+ }
+ prs->stack_pos = 0;
+ stack_old = -1;
+ prs->attcur = 0;
+ prs->attflag = 0;
+ prs->context = C_CDATA;
+ old = pos + 1;
+ break;
+
+ case C_ATTRIBUTE:
+ if ('/' == c) {
+ prs->tagtype = IKS_SINGLE;
+ prs->context = C_TAG_END;
+ break;
+ }
+ if ('>' == c) {
+ prs->context = C_TAG_END;
+ re = 1;
+ break;
+ }
+ if (!prs->atts) {
+ prs->attmax = 12;
+ prs->atts = iks_malloc (sizeof(char *) * 2 * 12);
+ if (!prs->atts) return IKS_NOMEM;
+ memset (prs->atts, 0, sizeof(char *) * 2 * 12);
+ prs->attcur = 0;
+ } else {
+ if (prs->attcur >= (prs->attmax * 2)) {
+ void *tmp;
+ prs->attmax += 12;
+ tmp = iks_malloc (sizeof(char *) * (2 * prs->attmax + 1));
+ if (!tmp) return IKS_NOMEM;
+ memset (tmp, 0, sizeof(char *) * (2 * prs->attmax + 1));
+ memcpy (tmp, prs->atts, sizeof(char *) * prs->attcur);
+ iks_free (prs->atts);
+ prs->atts = tmp;
+ }
+ }
+ prs->attflag = 1;
+ prs->atts[prs->attcur] = STACK_PUSH_START;
+ stack_old = pos;
+ prs->context = C_ATTRIBUTE_1;
+ break;
+
+ case C_ATTRIBUTE_1:
+ if ('=' == c) {
+ if (stack_old != -1) STACK_PUSH (buf + stack_old, pos - stack_old);
+ stack_old = -1;
+ STACK_PUSH_END;
+ prs->context = C_VALUE;
+ break;
+ }
+ if (stack_old == -1) stack_old = pos;
+ break;
+
+ case C_ATTRIBUTE_2:
+ if ('/' == c) {
+ prs->tagtype = IKS_SINGLE;
+ prs->atts[prs->attcur] = NULL;
+ prs->context = C_TAG_END;
+ break;
+ }
+ if ('>' == c) {
+ prs->atts[prs->attcur] = NULL;
+ prs->context = C_TAG_END;
+ re = 1;
+ break;
+ }
+ prs->context = C_ATTRIBUTE;
+ re = 1;
+ break;
+
+ case C_VALUE:
+ prs->atts[prs->attcur + 1] = STACK_PUSH_START;
+ if ('\'' == c) {
+ prs->context = C_VALUE_APOS;
+ break;
+ }
+ if ('"' == c) {
+ prs->context = C_VALUE_QUOT;
+ break;
+ }
+ return IKS_BADXML;
+
+ case C_VALUE_APOS:
+ if ('\'' == c) {
+ if (stack_old != -1) STACK_PUSH (buf + stack_old, pos - stack_old);
+ stack_old = -1;
+ STACK_PUSH_END;
+ prs->oldcontext = C_ATTRIBUTE_2;
+ prs->context = C_WHITESPACE;
+ prs->attcur += 2;
+ }
+ if (stack_old == -1) stack_old = pos;
+ break;
+
+ case C_VALUE_QUOT:
+ if ('"' == c) {
+ if (stack_old != -1) STACK_PUSH (buf + stack_old, pos - stack_old);
+ stack_old = -1;
+ STACK_PUSH_END;
+ prs->oldcontext = C_ATTRIBUTE_2;
+ prs->context = C_WHITESPACE;
+ prs->attcur += 2;
+ }
+ if (stack_old == -1) stack_old = pos;
+ break;
+
+ case C_WHITESPACE:
+ if (NOT_WHITESPACE(c)) {
+ prs->context = prs->oldcontext;
+ re = 1;
+ }
+ break;
+
+ case C_ENTITY:
+ if (';' == c) {
+ char hede[2];
+ char t = '?';
+ prs->entity[prs->entpos] = '\0';
+ if (strcmp(prs->entity, "amp") == 0)
+ t = '&';
+ else if (strcmp(prs->entity, "quot") == 0)
+ t = '"';
+ else if (strcmp(prs->entity, "apos") == 0)
+ t = '\'';
+ else if (strcmp(prs->entity, "lt") == 0)
+ t = '<';
+ else if (strcmp(prs->entity, "gt") == 0)
+ t = '>';
+ old = pos + 1;
+ hede[0] = t;
+ if (prs->cdataHook) {
+ err = prs->cdataHook (prs->user_data, &hede[0], 1);
+ if (IKS_OK != err) return err;
+ }
+ prs->context = C_CDATA;
+ } else {
+ prs->entity[prs->entpos++] = buf[pos];
+ if (prs->entpos > 7) return IKS_BADXML;
+ }
+ break;
+
+ case C_COMMENT:
+ if ('-' != c) return IKS_BADXML;
+ prs->context = C_COMMENT_1;
+ break;
+
+ case C_COMMENT_1:
+ if ('-' == c) prs->context = C_COMMENT_2;
+ break;
+
+ case C_COMMENT_2:
+ if ('-' == c)
+ prs->context = C_COMMENT_3;
+ else
+ prs->context = C_COMMENT_1;
+ break;
+
+ case C_COMMENT_3:
+ if ('>' != c) return IKS_BADXML;
+ prs->context = C_CDATA;
+ old = pos + 1;
+ break;
+
+ case C_MARKUP:
+ if ('[' == c) {
+ prs->context = C_SECT;
+ break;
+ }
+ if ('-' == c) {
+ prs->context = C_COMMENT;
+ break;
+ }
+ prs->context = C_MARKUP_1;
+
+ case C_MARKUP_1:
+ if ('>' == c) {
+ old = pos + 1;
+ prs->context = C_CDATA;
+ }
+ break;
+
+ case C_SECT:
+ if ('C' == c) {
+ prs->context = C_SECT_CDATA;
+ break;
+ }
+ return IKS_BADXML;
+
+ case C_SECT_CDATA:
+ if ('D' != c) return IKS_BADXML;
+ prs->context = C_SECT_CDATA_1;
+ break;
+
+ case C_SECT_CDATA_1:
+ if ('A' != c) return IKS_BADXML;
+ prs->context = C_SECT_CDATA_2;
+ break;
+
+ case C_SECT_CDATA_2:
+ if ('T' != c) return IKS_BADXML;
+ prs->context = C_SECT_CDATA_3;
+ break;
+
+ case C_SECT_CDATA_3:
+ if ('A' != c) return IKS_BADXML;
+ prs->context = C_SECT_CDATA_4;
+ break;
+
+ case C_SECT_CDATA_4:
+ if ('[' != c) return IKS_BADXML;
+ old = pos + 1;
+ prs->context = C_SECT_CDATA_C;
+ break;
+
+ case C_SECT_CDATA_C:
+ if (']' == c) {
+ prs->context = C_SECT_CDATA_E;
+ if (prs->cdataHook && old < pos) {
+ err = prs->cdataHook (prs->user_data, &buf[old], pos - old);
+ if (IKS_OK != err) return err;
+ }
+ }
+ break;
+
+ case C_SECT_CDATA_E:
+ if (']' == c) {
+ prs->context = C_SECT_CDATA_E2;
+ } else {
+ if (prs->cdataHook) {
+ err = prs->cdataHook (prs->user_data, "]", 1);
+ if (IKS_OK != err) return err;
+ }
+ old = pos;
+ prs->context = C_SECT_CDATA_C;
+ }
+ break;
+
+ case C_SECT_CDATA_E2:
+ if ('>' == c) {
+ old = pos + 1;
+ prs->context = C_CDATA;
+ } else {
+ if (prs->cdataHook) {
+ err = prs->cdataHook (prs->user_data, "]]", 2);
+ if (IKS_OK != err) return err;
+ }
+ old = pos;
+ prs->context = C_SECT_CDATA_C;
+ }
+ break;
+
+ case C_PI:
+ old = pos + 1;
+ if ('>' == c) prs->context = C_CDATA;
+ break;
+ }
+cont:
+ if (0 == re) {
+ pos++;
+ prs->nr_bytes++;
+ if ('\n' == c) prs->nr_lines++;
+ }
+ }
+
+ if (stack_old != -1)
+ STACK_PUSH (buf + stack_old, pos - stack_old);
+
+ err = IKS_OK;
+ if (prs->cdataHook && (prs->context == C_CDATA || prs->context == C_SECT_CDATA_C) && old < pos)
+ err = prs->cdataHook (prs->user_data, &buf[old], pos - old);
+ return err;
+}
+
+int
+iks_parse (iksparser *prs, const char *data, size_t len, int finish)
+{
+ if (!data) return IKS_OK;
+ if (len == 0) len = strlen (data);
+ return sax_core (prs, (char *) data, len);
+}
+
+void
+iks_parser_reset (iksparser *prs)
+{
+ if (prs->deleteHook) prs->deleteHook (prs->user_data);
+ prs->stack_pos = 0;
+ prs->context = 0;
+ prs->oldcontext = 0;
+ prs->tagtype = 0;
+ prs->attcur = 0;
+ prs->attflag = 0;
+ prs->valflag = 0;
+ prs->entpos = 0;
+ prs->nr_bytes = 0;
+ prs->nr_lines = 0;
+ prs->uni_max = 0;
+ prs->uni_len = 0;
+}
+
+void
+iks_parser_delete (iksparser *prs)
+{
+ if (prs->deleteHook) prs->deleteHook (prs->user_data);
+ if (prs->stack) iks_free (prs->stack);
+ if (prs->atts) iks_free (prs->atts);
+ if (prs->s) iks_stack_delete (prs->s); else iks_free (prs);
+}
+/* iksemel (XML parser for Jabber)
+** Copyright (C) 2000-2004 Gurer Ozen <[email protected]>
+** This code is free software; you can redistribute it and/or
+** modify it under the terms of GNU Lesser General Public License.
+*/
+
+#include "common.h"
+#include "iksemel.h"
+
+#define IKS_COMMON \
+ struct iks_struct *next, *prev; \
+ struct iks_struct *parent; \
+ enum ikstype type; \
+ ikstack *s
+
+struct iks_struct {
+ IKS_COMMON;
+};
+
+struct iks_tag {
+ IKS_COMMON;
+ struct iks_struct *children, *last_child;
+ struct iks_struct *attribs, *last_attrib;
+ char *name;
+};
+
+#define IKS_TAG_NAME(x) ((struct iks_tag *) (x) )->name
+#define IKS_TAG_CHILDREN(x) ((struct iks_tag *) (x) )->children
+#define IKS_TAG_LAST_CHILD(x) ((struct iks_tag *) (x) )->last_child
+#define IKS_TAG_ATTRIBS(x) ((struct iks_tag *) (x) )->attribs
+#define IKS_TAG_LAST_ATTRIB(x) ((struct iks_tag *) (x) )->last_attrib
+
+struct iks_cdata {
+ IKS_COMMON;
+ char *cdata;
+ size_t len;
+};
+
+#define IKS_CDATA_CDATA(x) ((struct iks_cdata *) (x) )->cdata
+#define IKS_CDATA_LEN(x) ((struct iks_cdata *) (x) )->len
+
+struct iks_attrib {
+ IKS_COMMON;
+ char *name;
+ char *value;
+};
+
+#define IKS_ATTRIB_NAME(x) ((struct iks_attrib *) (x) )->name
+#define IKS_ATTRIB_VALUE(x) ((struct iks_attrib *) (x) )->value
+
+/***** Node Creating & Deleting *****/
+
+iks *
+iks_new (const char *name)
+{
+ ikstack *s;
+ iks *x;
+
+ s = iks_stack_new (sizeof (struct iks_tag) * 6, 256);
+ if (!s) return NULL;
+ x = iks_new_within (name, s);
+ if (!x) {
+ iks_stack_delete (s);
+ return NULL;
+ }
+ return x;
+}
+
+iks *
+iks_new_within (const char *name, ikstack *s)
+{
+ iks *x;
+ size_t len;
+
+ if (name) len = sizeof (struct iks_tag); else len = sizeof (struct iks_cdata);
+ x = iks_stack_alloc (s, len);
+ if (!x) return NULL;
+ memset (x, 0, len);
+ x->s = s;
+ x->type = IKS_TAG;
+ if (name) {
+ IKS_TAG_NAME (x) = iks_stack_strdup (s, name, 0);
+ if (!IKS_TAG_NAME (x)) return NULL;
+ }
+ return x;
+}
+
+iks *
+iks_insert (iks *x, const char *name)
+{
+ iks *y;
+
+ if (!x) return NULL;
+
+ y = iks_new_within (name, x->s);
+ if (!y) return NULL;
+ y->parent = x;
+ if (!IKS_TAG_CHILDREN (x)) IKS_TAG_CHILDREN (x) = y;
+ if (IKS_TAG_LAST_CHILD (x)) {
+ IKS_TAG_LAST_CHILD (x)->next = y;
+ y->prev = IKS_TAG_LAST_CHILD (x);
+ }
+ IKS_TAG_LAST_CHILD (x) = y;
+ return y;
+}
+
+iks *
+iks_insert_cdata (iks *x, const char *data, size_t len)
+{
+ iks *y;
+
+ if(!x || !data) return NULL;
+ if(len == 0) len = strlen (data);
+
+ y = IKS_TAG_LAST_CHILD (x);
+ if (y && y->type == IKS_CDATA) {
+ IKS_CDATA_CDATA (y) = iks_stack_strcat (x->s, IKS_CDATA_CDATA (y), IKS_CDATA_LEN (y), data, len);
+ IKS_CDATA_LEN (y) += len;
+ } else {
+ y = iks_insert (x, NULL);
+ if (!y) return NULL;
+ y->type = IKS_CDATA;
+ IKS_CDATA_CDATA (y) = iks_stack_strdup (x->s, data, len);
+ if (!IKS_CDATA_CDATA (y)) return NULL;
+ IKS_CDATA_LEN (y) = len;
+ }
+ return y;
+}
+
+iks *
+iks_insert_attrib (iks *x, const char *name, const char *value)
+{
+ iks *y;
+ size_t len;
+
+ if (!x) return NULL;
+
+ y = IKS_TAG_ATTRIBS (x);
+ while (y) {
+ if (strcmp (name, IKS_ATTRIB_NAME (y)) == 0) break;
+ y = y->next;
+ }
+ if (NULL == y) {
+ if (!value) return NULL;
+ y = iks_stack_alloc (x->s, sizeof (struct iks_attrib));
+ if (!y) return NULL;
+ memset (y, 0, sizeof (struct iks_attrib));
+ y->type = IKS_ATTRIBUTE;
+ IKS_ATTRIB_NAME (y) = iks_stack_strdup (x->s, name, 0);
+ y->parent = x;
+ if (!IKS_TAG_ATTRIBS (x)) IKS_TAG_ATTRIBS (x) = y;
+ if (IKS_TAG_LAST_ATTRIB (x)) {
+ IKS_TAG_LAST_ATTRIB (x)->next = y;
+ y->prev = IKS_TAG_LAST_ATTRIB (x);
+ }
+ IKS_TAG_LAST_ATTRIB (x) = y;
+ }
+
+ if (value) {
+ len = strlen (value);
+ IKS_ATTRIB_VALUE (y) = iks_stack_strdup (x->s, value, len);
+ if (!IKS_ATTRIB_VALUE (y)) return NULL;
+ } else {
+ if (y->next) y->next->prev = y->prev;
+ if (y->prev) y->prev->next = y->next;
+ if (IKS_TAG_ATTRIBS (x) == y) IKS_TAG_ATTRIBS (x) = y->next;
+ if (IKS_TAG_LAST_ATTRIB (x) == y) IKS_TAG_LAST_ATTRIB (x) = y->prev;
+ }
+
+ return y;
+}
+
+iks *
+iks_insert_node (iks *x, iks *y)
+{
+ y->parent = x;
+ if (!IKS_TAG_CHILDREN (x)) IKS_TAG_CHILDREN (x) = y;
+ if (IKS_TAG_LAST_CHILD (x)) {
+ IKS_TAG_LAST_CHILD (x)->next = y;
+ y->prev = IKS_TAG_LAST_CHILD (x);
+ }
+ IKS_TAG_LAST_CHILD (x) = y;
+ return y;
+}
+
+void
+iks_hide (iks *x)
+{
+ iks *y;
+
+ if (!x) return;
+
+ if (x->prev) x->prev->next = x->next;
+ if (x->next) x->next->prev = x->prev;
+ y = x->parent;
+ if (y) {
+ if (IKS_TAG_CHILDREN (y) == x) IKS_TAG_CHILDREN (y) = x->next;
+ if (IKS_TAG_LAST_CHILD (y) == x) IKS_TAG_LAST_CHILD (y) = x->prev;
+ }
+}
+
+void
+iks_delete (iks *x)
+{
+ if (x) iks_stack_delete (x->s);
+}
+
+/***** Node Traversing *****/
+
+iks *
+iks_next (iks *x)
+{
+ if (x) return x->next;
+ return NULL;
+}
+
+iks *
+iks_next_tag (iks *x)
+{
+ if (x) {
+ while (1) {
+ x = x->next;
+ if (NULL == x) break;
+ if (IKS_TAG == x->type) return x;
+ }
+ }
+ return NULL;
+}
+
+iks *
+iks_prev (iks *x)
+{
+ if (x) return x->prev;
+ return NULL;
+}
+
+iks *
+iks_prev_tag (iks *x)
+{
+ if (x) {
+ while (1) {
+ x = x->prev;
+ if (NULL == x) break;
+ if (IKS_TAG == x->type) return x;
+ }
+ }
+ return NULL;
+}
+
+iks *
+iks_parent (iks *x)
+{
+ if (x) return x->parent;
+ return NULL;
+}
+
+iks *
+iks_root (iks *x)
+{
+ if (x) {
+ while (x->parent)
+ x = x->parent;
+ }
+ return x;
+}
+
+iks *
+iks_child (iks *x)
+{
+ if (x) return IKS_TAG_CHILDREN (x);
+ return NULL;
+}
+
+iks *
+iks_first_tag (iks *x)
+{
+ if (x) {
+ x = IKS_TAG_CHILDREN (x);
+ while (x) {
+ if (IKS_TAG == x->type) return x;
+ x = x->next;
+ }
+ }
+ return NULL;
+}
+
+iks *
+iks_attrib (iks *x)
+{
+ if (x) return IKS_TAG_ATTRIBS (x);
+ return NULL;
+}
+
+iks *
+iks_find (iks *x, const char *name)
+{
+ iks *y;
+
+ if (!x) return NULL;
+ y = IKS_TAG_CHILDREN (x);
+ while (y) {
+ if (IKS_TAG == y->type && IKS_TAG_NAME (y) && strcmp (IKS_TAG_NAME (y), name) == 0) return y;
+ y = y->next;
+ }
+ return NULL;
+}
+
+char *
+iks_find_cdata (iks *x, const char *name)
+{
+ iks *y;
+
+ y = iks_find (x, name);
+ if (!y) return NULL;
+ y = IKS_TAG_CHILDREN (y);
+ if (!y || IKS_CDATA != y->type) return NULL;
+ return IKS_CDATA_CDATA (y);
+}
+
+char *
+iks_find_attrib (iks *x, const char *name)
+{
+ iks *y;
+
+ if (!x) return NULL;
+
+ y = IKS_TAG_ATTRIBS (x);
+ while (y) {
+ if (IKS_ATTRIB_NAME (y) && strcmp (IKS_ATTRIB_NAME (y), name) == 0)
+ return IKS_ATTRIB_VALUE (y);
+ y = y->next;
+ }
+ return NULL;
+}
+
+iks *
+iks_find_with_attrib (iks *x, const char *tagname, const char *attrname, const char *value)
+{
+ iks *y;
+
+ if (NULL == x) return NULL;
+
+ if (tagname) {
+ for (y = IKS_TAG_CHILDREN (x); y; y = y->next) {
+ if (IKS_TAG == y->type
+ && strcmp (IKS_TAG_NAME (y), tagname) == 0
+ && iks_strcmp (iks_find_attrib (y, attrname), value) == 0) {
+ return y;
+ }
+ }
+ } else {
+ for (y = IKS_TAG_CHILDREN (x); y; y = y->next) {
+ if (IKS_TAG == y->type
+ && iks_strcmp (iks_find_attrib (y, attrname), value) == 0) {
+ return y;
+ }
+ }
+ }
+ return NULL;
+}
+
+/***** Node Information *****/
+
+ikstack *
+iks_stack (iks *x)
+{
+ if (x) return x->s;
+ return NULL;
+}
+
+enum ikstype
+iks_type (iks *x)
+{
+ if (x) return x->type;
+ return IKS_NONE;
+}
+
+char *
+iks_name (iks *x)
+{
+ if (x) {
+ if (IKS_TAG == x->type)
+ return IKS_TAG_NAME (x);
+ else
+ return IKS_ATTRIB_NAME (x);
+ }
+ return NULL;
+}
+
+char *
+iks_cdata (iks *x)
+{
+ if (x) {
+ if (IKS_CDATA == x->type)
+ return IKS_CDATA_CDATA (x);
+ else
+ return IKS_ATTRIB_VALUE (x);
+ }
+ return NULL;
+}
+
+size_t
+iks_cdata_size (iks *x)
+{
+ if (x) return IKS_CDATA_LEN (x);
+ return 0;
+}
+
+int
+iks_has_children (iks *x)
+{
+ if (x && IKS_TAG == x->type && IKS_TAG_CHILDREN (x)) return 1;
+ return 0;
+}
+
+int
+iks_has_attribs (iks *x)
+{
+ if (x && IKS_TAG == x->type && IKS_TAG_ATTRIBS (x)) return 1;
+ return 0;
+}
+
+/***** Serializing *****/
+
+static size_t
+escape_size (char *src, size_t len)
+{
+ size_t sz;
+ char c;
+ int i;
+
+ sz = 0;
+ for (i = 0; i < len; i++) {
+ c = src[i];
+ switch (c) {
+ case '&': sz += 5; break;
+ case '\'': sz += 6; break;
+ case '"': sz += 6; break;
+ case '<': sz += 4; break;
+ case '>': sz += 4; break;
+ default: sz++; break;
+ }
+ }
+ return sz;
+}
+
+static char *
+my_strcat (char *dest, char *src, size_t len)
+{
+ if (0 == len) len = strlen (src);
+ memcpy (dest, src, len);
+ return dest + len;
+}
+
+static char *
+escape (char *dest, char *src, size_t len)
+{
+ char c;
+ int i;
+ int j = 0;
+
+ for (i = 0; i < len; i++) {
+ c = src[i];
+ if ('&' == c || '<' == c || '>' == c || '\'' == c || '"' == c) {
+ if (i - j > 0) dest = my_strcat (dest, src + j, i - j);
+ j = i + 1;
+ switch (c) {
+ case '&': dest = my_strcat (dest, "&amp;", 5); break;
+ case '\'': dest = my_strcat (dest, "&apos;", 6); break;
+ case '"': dest = my_strcat (dest, "&quot;", 6); break;
+ case '<': dest = my_strcat (dest, "&lt;", 4); break;
+ case '>': dest = my_strcat (dest, "&gt;", 4); break;
+ }
+ }
+ }
+ if (i - j > 0) dest = my_strcat (dest, src + j, i - j);
+ return dest;
+}
+
+char *
+iks_string (ikstack *s, iks *x)
+{
+ size_t size;
+ int level, dir;
+ iks *y, *z;
+ char *ret, *t;
+
+ if (!x) return NULL;
+
+ if (x->type == IKS_CDATA) {
+ if (s) {
+ return iks_stack_strdup (s, IKS_CDATA_CDATA (x), IKS_CDATA_LEN (x));
+ } else {
+ ret = iks_malloc (IKS_CDATA_LEN (x));
+ memcpy (ret, IKS_CDATA_CDATA (x), IKS_CDATA_LEN (x));
+ return ret;
+ }
+ }
+
+ size = 0;
+ level = 0;
+ dir = 0;
+ y = x;
+ while (1) {
+ if (dir==0) {
+ if (y->type == IKS_TAG) {
+ size++;
+ size += strlen (IKS_TAG_NAME (y));
+ for (z = IKS_TAG_ATTRIBS (y); z; z = z->next) {
+ size += 4 + strlen (IKS_ATTRIB_NAME (z))
+ + escape_size (IKS_ATTRIB_VALUE (z), strlen (IKS_ATTRIB_VALUE (z)));
+ }
+ if (IKS_TAG_CHILDREN (y)) {
+ size++;
+ y = IKS_TAG_CHILDREN (y);
+ level++;
+ continue;
+ } else {
+ size += 2;
+ }
+ } else {
+ size += escape_size (IKS_CDATA_CDATA (y), IKS_CDATA_LEN (y));
+ }
+ }
+ z = y->next;
+ if (z) {
+ if (0 == level) {
+ if (IKS_TAG_CHILDREN (y)) size += 3 + strlen (IKS_TAG_NAME (y));
+ break;
+ }
+ y = z;
+ dir = 0;
+ } else {
+ y = y->parent;
+ level--;
+ if (level >= 0) size += 3 + strlen (IKS_TAG_NAME (y));
+ if (level < 1) break;
+ dir = 1;
+ }
+ }
+
+ if (s) ret = iks_stack_alloc (s, size + 1);
+ else ret = iks_malloc (size + 1);
+
+ if (!ret) return NULL;
+
+ t = ret;
+ level = 0;
+ dir = 0;
+ while (1) {
+ if (dir==0) {
+ if (x->type == IKS_TAG) {
+ *t++ = '<';
+ t = my_strcat (t, IKS_TAG_NAME (x), 0);
+ y = IKS_TAG_ATTRIBS (x);
+ while (y) {
+ *t++ = ' ';
+ t = my_strcat (t, IKS_ATTRIB_NAME (y), 0);
+ *t++ = '=';
+ *t++ = '\'';
+ t = escape (t, IKS_ATTRIB_VALUE (y), strlen (IKS_ATTRIB_VALUE (y)));
+ *t++ = '\'';
+ y = y->next;
+ }
+ if (IKS_TAG_CHILDREN (x)) {
+ *t++ = '>';
+ x = IKS_TAG_CHILDREN (x);
+ level++;
+ continue;
+ } else {
+ *t++ = '/';
+ *t++ = '>';
+ }
+ } else {
+ t = escape (t, IKS_CDATA_CDATA (x), IKS_CDATA_LEN (x));
+ }
+ }
+ y = x->next;
+ if (y) {
+ if (0 == level) {
+ if (IKS_TAG_CHILDREN (x)) {
+ *t++ = '<';
+ *t++ = '/';
+ t = my_strcat (t, IKS_TAG_NAME (x), 0);
+ *t++ = '>';
+ }
+ break;
+ }
+ x = y;
+ dir = 0;
+ } else {
+ x = x->parent;
+ level--;
+ if (level >= 0) {
+ *t++ = '<';
+ *t++ = '/';
+ t = my_strcat (t, IKS_TAG_NAME (x), 0);
+ *t++ = '>';
+ }
+ if (level < 1) break;
+ dir = 1;
+ }
+ }
+ *t = '\0';
+
+ return ret;
+}
+
+/***** Copying *****/
+
+iks *
+iks_copy_within (iks *x, ikstack *s)
+{
+ int level=0, dir=0;
+ iks *copy = NULL;
+ iks *cur = NULL;
+ iks *y;
+
+ while (1) {
+ if (dir == 0) {
+ if (x->type == IKS_TAG) {
+ if (copy == NULL) {
+ copy = iks_new_within (IKS_TAG_NAME (x), s);
+ cur = copy;
+ } else {
+ cur = iks_insert (cur, IKS_TAG_NAME (x));
+ }
+ for (y = IKS_TAG_ATTRIBS (x); y; y = y->next) {
+ iks_insert_attrib (cur, IKS_ATTRIB_NAME (y), IKS_ATTRIB_VALUE (y));
+ }
+ if (IKS_TAG_CHILDREN (x)) {
+ x = IKS_TAG_CHILDREN (x);
+ level++;
+ continue;
+ } else {
+ cur = cur->parent;
+ }
+ } else {
+ iks_insert_cdata (cur, IKS_CDATA_CDATA (x), IKS_CDATA_LEN (x));
+ }
+ }
+ y = x->next;
+ if (y) {
+ if (0 == level) break;
+ x = y;
+ dir = 0;
+ } else {
+ if (level < 2) break;
+ level--;
+ x = x->parent;
+ cur = cur->parent;
+ dir = 1;
+ }
+ }
+ return copy;
+}
+
+iks *
+iks_copy (iks *x)
+{
+ return iks_copy_within (x, iks_stack_new (sizeof (struct iks_tag) * 6, 256));
+}
+/* iksemel (XML parser for Jabber)
+** Copyright (C) 2000-2003 Gurer Ozen <[email protected]>
+** This code is free software; you can redistribute it and/or
+** modify it under the terms of GNU Lesser General Public License.
+*/
+
+#include "common.h"
+#include "iksemel.h"
+
+struct dom_data {
+ iks **iksptr;
+ iks *current;
+ size_t chunk_size;
+};
+
+static int
+tagHook (struct dom_data *data, char *name, char **atts, int type)
+{
+ iks *x;
+
+ if (IKS_OPEN == type || IKS_SINGLE == type) {
+ if (data->current) {
+ x = iks_insert (data->current, name);
+ } else {
+ ikstack *s;
+ s = iks_stack_new (data->chunk_size, data->chunk_size);
+ x = iks_new_within (name, s);
+ }
+ if (atts) {
+ int i=0;
+ while (atts[i]) {
+ iks_insert_attrib (x, atts[i], atts[i+1]);
+ i += 2;
+ }
+ }
+ data->current = x;
+ }
+ if (IKS_CLOSE == type || IKS_SINGLE == type) {
+ x = iks_parent (data->current);
+ if (x)
+ data->current = x;
+ else {
+ *(data->iksptr) = data->current;
+ data->current = NULL;
+ }
+ }
+ return IKS_OK;
+}
+
+static int
+cdataHook (struct dom_data *data, char *cdata, size_t len)
+{
+ if (data->current) iks_insert_cdata (data->current, cdata, len);
+ return IKS_OK;
+}
+
+static void
+deleteHook (struct dom_data *data)
+{
+ if (data->current) iks_delete (data->current);
+ data->current = NULL;
+}
+
+iksparser *
+iks_dom_new (iks **iksptr)
+{
+ ikstack *s;
+ struct dom_data *data;
+
+ *iksptr = NULL;
+ s = iks_stack_new (DEFAULT_DOM_CHUNK_SIZE, 0);
+ if (!s) return NULL;
+ data = iks_stack_alloc (s, sizeof (struct dom_data));
+ data->iksptr = iksptr;
+ data->current = NULL;
+ data->chunk_size = DEFAULT_DOM_IKS_CHUNK_SIZE;
+ return iks_sax_extend (s, data, (iksTagHook *) tagHook, (iksCDataHook *) cdataHook, (iksDeleteHook *) deleteHook);
+}
+
+void
+iks_set_size_hint (iksparser *prs, size_t approx_size)
+{
+ size_t cs;
+ struct dom_data *data = iks_user_data (prs);
+
+ cs = approx_size / 10;
+ if (cs < DEFAULT_DOM_IKS_CHUNK_SIZE) cs = DEFAULT_DOM_IKS_CHUNK_SIZE;
+ data->chunk_size = cs;
+}
+
+iks *
+iks_tree (const char *xml_str, size_t len, int *err)
+{
+ iksparser *prs;
+ iks *x;
+ int e;
+
+ if (0 == len) len = strlen (xml_str);
+ prs = iks_dom_new (&x);
+ if (!prs) {
+ if (err) *err = IKS_NOMEM;
+ return NULL;
+ }
+ e = iks_parse (prs, xml_str, len, 1);
+ if (err) *err = e;
+ iks_parser_delete (prs);
+ return x;
+}
+
+int
+iks_load (const char *fname, iks **xptr)
+{
+ iksparser *prs;
+ char *buf;
+ FILE *f;
+ int len, done = 0;
+ int ret;
+
+ *xptr = NULL;
+
+ buf = iks_malloc (FILE_IO_BUF_SIZE);
+ if (!buf) return IKS_NOMEM;
+ ret = IKS_NOMEM;
+ prs = iks_dom_new (xptr);
+ if (prs) {
+ f = fopen (fname, "r");
+ if (f) {
+ while (0 == done) {
+ len = fread (buf, 1, FILE_IO_BUF_SIZE, f);
+ if (len < FILE_IO_BUF_SIZE) {
+ if (0 == feof (f)) {
+ ret = IKS_FILE_RWERR;
+ len = 0;
+ }
+ done = 1;
+ }
+ if (len > 0) {
+ int e;
+ e = iks_parse (prs, buf, len, done);
+ if (IKS_OK != e) {
+ ret = e;
+ break;
+ }
+ if (done) ret = IKS_OK;
+ }
+ }
+ fclose (f);
+ } else {
+ if (ENOENT == errno) ret = IKS_FILE_NOFILE;
+ else ret = IKS_FILE_NOACCESS;
+ }
+ iks_parser_delete (prs);
+ }
+ iks_free (buf);
+ return ret;
+}
+
+int
+iks_save (const char *fname, iks *x)
+{
+ FILE *f;
+ char *data;
+ int ret;
+
+ ret = IKS_NOMEM;
+ data = iks_string (NULL, x);
+ if (data) {
+ ret = IKS_FILE_NOACCESS;
+ f = fopen (fname, "w");
+ if (f) {
+ ret = IKS_FILE_RWERR;
+ if (fputs (data, f) >= 0) ret = IKS_OK;
+ fclose (f);
+ }
+ iks_free (data);
+ }
+ return ret;
+}