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check parameters are valid as we parse

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This commit is contained in:
Dave Murphy 2014-12-13 02:32:21 +00:00
parent 49200b8b96
commit e8df59be59
1 changed files with 7 additions and 2 deletions
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9
libctru/source/console.c
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@ -207,14 +207,19 @@ ssize_t con_write(struct _reent *r,int fd,const char *ptr, size_t len) {
if ( chr == 0x1b && *tmp == '[' ) {
bool escaping = true;
char *escapeseq = tmp;
int escapelen = 0;
char *escapeseq = tmp++;
int escapelen = 1;
i++; count++;
do {
chr = *(tmp++);
i++; count++; escapelen++;
int parameter, assigned, consumed;
// make sure parameters are positive values and delimited by semicolon
if((chr >= '0' && chr <= '9') || chr == ';')
continue;
switch (chr) {
//---------------------------------------
// Cursor directional movement