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more error case handling. 

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@6889 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Michael Jerris 2007-12-18 23:45:06 +00:00
parent c535daae7d
commit a5d295bda4
1 changed files with 39 additions and 9 deletions
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48
src/switch_xml.cpp
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@ -489,6 +489,8 @@ static void switch_xml_proc_inst(switch_xml_root_t root, char *s, switch_size_t
{
int i = 0, j = 1;
char *target = s;
char **sstmp;
char *stmp;
s[len] = '\0'; // null terminate instruction
if (*(s += strcspn(s, SWITCH_XML_WS))) {
@ -513,7 +515,9 @@ static void switch_xml_proc_inst(switch_xml_root_t root, char *s, switch_size_t
while (root->pi[i] && strcmp(target, root->pi[i][0]))
i++; // find target
if (!root->pi[i]) { // new target
root->pi = (char ***)realloc(root->pi, sizeof(char **) * (i + 2));
char ***ssstmp = (char ***)realloc(root->pi, sizeof(char **) * (i + 2));
if (!ssstmp) return;
root->pi = ssstmp;
if (!root->pi) return;
root->pi[i] = (char **)malloc(sizeof(char *) * 3);
if (!root->pi[i]) return;
@ -524,8 +528,12 @@ static void switch_xml_proc_inst(switch_xml_root_t root, char *s, switch_size_t
while (root->pi[i][j])
j++; // find end of instruction list for this target
root->pi[i] = (char **)realloc(root->pi[i], sizeof(char *) * (j + 3));
root->pi[i][j + 2] = (char *)realloc(root->pi[i][j + 1], j + 1);
sstmp = (char **)realloc(root->pi[i], sizeof(char *) * (j + 3));
if (!sstmp) return;
root->pi[i] = sstmp;
stmp = (char *)realloc(root->pi[i][j + 1], j + 1);
if (!stmp) return;
root->pi[i][j + 2] = stmp;
strcpy(root->pi[i][j + 2] + j - 1, (root->xml.name) ? ">" : "<");
root->pi[i][j + 1] = NULL; // null terminate pi list for this target
root->pi[i][j] = s; // set instruction
@ -536,6 +544,7 @@ static short switch_xml_internal_dtd(switch_xml_root_t root, char *s, switch_siz
{
char q, *c, *t, *n = NULL, *v, **ent, **pe;
int i, j;
char **sstmp;
pe = (char **)memcpy(malloc(sizeof(SWITCH_XML_NIL)), SWITCH_XML_NIL, sizeof(SWITCH_XML_NIL));
@ -557,7 +566,12 @@ static short switch_xml_internal_dtd(switch_xml_root_t root, char *s, switch_siz
}
for (i = 0, ent = (*c == '%') ? pe : root->ent; ent[i]; i++);
ent = (char **)realloc(ent, (i + 3) * sizeof(char *)); // space for next ent
sstmp = (char **)realloc(ent, (i + 3) * sizeof(char *)); // space for next ent
if (!sstmp) {
switch_xml_err(root, v, "Allocation Error!");
break;
}
ent = sstmp;
if (*c == '%')
pe = ent;
else
@ -630,8 +644,14 @@ static short switch_xml_internal_dtd(switch_xml_root_t root, char *s, switch_siz
}
for (j = 1; root->attr[i][j]; j += 3); // find end of list
root->attr[i] = (char **)realloc(root->attr[i], (j + 4) * sizeof(char *));
sstmp = (char **)realloc(root->attr[i], (j + 4) * sizeof(char *));
if (!sstmp) {
switch_xml_err(root, t, "Allocation Error!");
break;
}
root->attr[i] = sstmp;
root->attr[i][j + 3] = NULL; // null terminate list
root->attr[i][j + 2] = c; // is it cdata?
root->attr[i][j + 1] = (v) ? switch_xml_decode(v, root->ent, *c)
@ -675,8 +695,12 @@ static char *switch_xml_str2utf8(char **s, switch_size_t *len)
c = (((c & 0x3FF) << 10) | (d & 0x3FF)) + 0x10000;
}
while (l + 6 > max)
u = (char *)realloc(u, max += SWITCH_XML_BUFSIZE);
while (l + 6 > max) {
char *tmp;
tmp = (char *)realloc(u, max += SWITCH_XML_BUFSIZE);
if (!tmp) return NULL;
u = tmp;
}
if (c < 0x80)
u[l++] = (char) c; // US-ASCII subset
else { // multi-byte UTF-8 sequence
@ -873,8 +897,14 @@ SWITCH_DECLARE(switch_xml_t) switch_xml_parse_fp(FILE * fp)
return NULL;
do {
len += (l = fread((s + len), 1, SWITCH_XML_BUFSIZE, fp));
if (l == SWITCH_XML_BUFSIZE)
s = (char *)realloc(s, len + SWITCH_XML_BUFSIZE);
if (l == SWITCH_XML_BUFSIZE) {
char *tmp = (char *)realloc(s, len + SWITCH_XML_BUFSIZE);
if (!tmp) {
free(s);
return NULL;
}
s = tmp;
}
} while (s && l == SWITCH_XML_BUFSIZE);
if (!s)