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add xml error checking

This commit is contained in:
Michael Jerris 2010-04-26 07:02:26 -04:00
parent a44e6c0891
commit 41557506e1
1 changed files with 27 additions and 4 deletions
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31
src/switch_xml.c
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@ -403,6 +403,10 @@ SWITCH_DECLARE(const char *) switch_xml_attr(switch_xml_t xml, const char *attr)
return NULL;
}
if (!root->attr) {
return NULL;
}
for (i = 0; root->attr[i] && xml->name && strcmp(xml->name, root->attr[i][0]); i++);
if (!root->attr[i])
return NULL; /* no matching default attributes */
@ -451,6 +455,9 @@ SWITCH_DECLARE(const char **) switch_xml_pi(switch_xml_t xml, const char *target
return (const char **) SWITCH_XML_NIL;
while (root->xml.parent)
root = (switch_xml_root_t) root->xml.parent; /* root tag */
if (!root || !root->pi) {
return (const char **) SWITCH_XML_NIL;
}
while (root->pi[i] && strcmp(target, root->pi[i][0]))
i++; /* find target */
return (const char **) ((root->pi[i]) ? root->pi[i] + 1 : SWITCH_XML_NIL);
@ -463,6 +470,10 @@ static switch_xml_t switch_xml_err(switch_xml_root_t root, char *s, const char *
int line = 1;
char *t, fmt[SWITCH_XML_ERRL];
if (!root || !root->s) {
return NULL;
}
for (t = root->s; t && t < s; t++)
if (*t == '\n')
line++;
@ -578,7 +589,13 @@ static char *switch_xml_decode(char *s, char **ent, char t)
/* called when parser finds start of new tag */
static void switch_xml_open_tag(switch_xml_root_t root, char *name, char **attr)
{
switch_xml_t xml = root->cur;
switch_xml_t xml;
if (!root || !root->cur) {
return;
}
xml = root->cur;
if (xml->name)
xml = switch_xml_add_child(xml, name, strlen(xml->txt));
@ -592,10 +609,16 @@ static void switch_xml_open_tag(switch_xml_root_t root, char *name, char **attr)
/* called when parser finds character content between open and closing tag */
static void switch_xml_char_content(switch_xml_root_t root, char *s, switch_size_t len, char t)
{
switch_xml_t xml = root->cur;
switch_xml_t xml;
char *m = s;
switch_size_t l;
if (!root || !root->cur) {
return;
}
xml = root->cur;
if (!xml || !xml->name || !len)
return; /* sanity check */
@ -632,7 +655,7 @@ static void switch_xml_char_content(switch_xml_root_t root, char *s, switch_size
/* called when parser finds closing tag */
static switch_xml_t switch_xml_close_tag(switch_xml_root_t root, char *name, char *s)
{
if (!root->cur || !root->cur->name || strcmp(name, root->cur->name))
if (!root || !root->cur || !root->cur->name || strcmp(name, root->cur->name))
return switch_xml_err(root, s, "unexpected closing tag </%s>", name);
root->cur = root->cur->parent;
@ -681,7 +704,7 @@ static void switch_xml_proc_inst(switch_xml_root_t root, char *s, switch_size_t
return;
}
if (!root->pi[0]) {
if (!root->pi || !root->pi[0]) {
root->pi = (char ***) malloc(sizeof(char **));
if (!root->pi)
return;