info.c (tagcompare): use a locale-insensitive toupper()
see:
#include <stdlib.h>
#include <string.h>
-#include <ctype.h>
#include <ogg/ogg.h>
#include "vorbis/codec.h"
#include "codec_internal.h"
@@ -47,6 +46,10 @@ static void _v_readstring(oggpack_buffer *o,char *buf,int bytes){
}
}
+static int _v_toupper(int c) {
+ return (c >= 'a' && c <= 'z') ? (c & ~('a' - 'A')) : c;
+}
+
void vorbis_comment_init(vorbis_comment *vc){
memset(vc,0,sizeof(*vc));
}
@@ -78,7 +81,7 @@ void vorbis_comment_add_tag(vorbis_comment *vc, const char *tag, const char *con
static int tagcompare(const char *s1, const char *s2, int n){
int c=0;
while(c < n){
- if(toupper(s1[c]) != toupper(s2[c]))
+ if(_v_toupper(s1[c]) != _v_toupper(s2[c]))
return !0;
c++;
}
