experiments/clixon
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

CDATA Encode and decode (parsing) support

Browse source
This commit is contained in:
Olof hagsand 2018-06-13 22:55:46 +02:00
parent 8b31d83806
commit 9eff879458
6 changed files with 61 additions and 16 deletions
Download patch file Download diff file Expand all files Collapse all files

56
lib/src/clixon_string.c
View file

@ -297,31 +297,56 @@ xml_chardata_encode(char *str,
int l;
int len;
int i, j;
int cdata; /* when set, skip encoding */
len = 0;
/* First compute length (do nothing) */
len = 0; cdata = 0;
for (i=0; i<strlen(str); i++){
switch (str[i]){
case '&':
len += strlen("&amp; ");
break;
case '<':
len += strlen("&lt; ");
break;
case '>':
len += strlen("&gt; ");
break;
default:
if (cdata){
if (strncmp(&str[i], "]]>", strlen("]]>")) == 0)
cdata = 0;
len++;
}
else
switch (str[i]){
case '&':
len += strlen("&amp; ");
break;
case '<':
if (strncmp(&str[i], "<![CDATA[", strlen("<![CDATA[")) == 0){
len++;
cdata++;
}
else
len += strlen("&lt; ");
break;
case '>':
len += strlen("&gt; ");
break;
default:
len++;
}
}
len++; /* trailing \0 */
/* We know length, allocate encoding buffer */
if ((esc = malloc(len)) == NULL){
clicon_err(OE_UNIX, errno, "malloc");
goto done;
}
memset(esc, 0, len);
j = 0;
/* Same code again, but now actually encode into output buffer */
j = 0; cdata = 0;
for (i=0; i<strlen(str); i++){
if (cdata){
if (strncmp(&str[i], "]]>", strlen("]]>")) == 0){
cdata = 0;
esc[j++] = str[i++];
esc[j++] = str[i++];
}
esc[j++] = str[i];
}
else
switch (str[i]){
case '&':
if ((l=snprintf(&esc[j], 7, "&amp; ")) < 0){
@ -331,6 +356,11 @@ xml_chardata_encode(char *str,
j += l;
break;
case '<':
if (strncmp(&str[i], "<![CDATA[", strlen("<![CDATA[")) == 0){
esc[j++] = str[i];
cdata++;
break;
}
if ((l=snprintf(&esc[j], 6, "&lt; ")) < 0){
clicon_err(OE_UNIX, errno, "snprintf");
goto done;