The source and destination strings in strcpy() may not overlap.
Instead, use memmove(), which allows overlap. This fixes test t0104,
where 'url=foo%2bbar/tree' was being parsed improperly.
Signed-off-by: Mark Lodato <lodatom@gmail.com>
char *convert_query_hexchar(char *txt)
{
- int d1, d2;
- if (strlen(txt) < 3) {
+ int d1, d2, n;
+ n = strlen(txt);
+ if (n < 3) {
*txt = '\0';
return txt-1;
}
d1 = hextoint(*(txt+1));
d2 = hextoint(*(txt+2));
if (d1<0 || d2<0) {
- strcpy(txt, txt+3);
+ memmove(txt, txt+3, n-3);
return txt-1;
} else {
*txt = d1 * 16 + d2;
- strcpy(txt+1, txt+3);
+ memmove(txt+1, txt+3, n-2);
return txt;
}
}