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Index: libcdio-0.76/lib/driver/image/nrg.c
===================================================================
--- libcdio-0.76.orig/lib/driver/image/nrg.c
+++ libcdio-0.76/lib/driver/image/nrg.c
@@ -1173,21 +1173,14 @@ _get_track_green_nrg(void *p_user_data,
bool
cdio_is_nrg(const char *psz_nrg)
{
- unsigned int i;
+ size_t psz_len;
if (psz_nrg == NULL) return false;
+ psz_len = strlen(psz_nrg);
+ /* At least 4 characters needed for .nrg extension */
+ if ( psz_len < 4 ) return false;
- i=strlen(psz_nrg)-strlen("nrg");
-
- if (i>0) {
- if (psz_nrg[i]=='n' && psz_nrg[i+1]=='r' && psz_nrg[i+2]=='g') {
- return true;
- }
- else if (psz_nrg[i]=='N' && psz_nrg[i+1]=='R' && psz_nrg[i+2]=='G') {
- return true;
- }
- }
- return false;
+ return strncasecmp( psz_nrg+(psz_len-3), "nrg", 3 ) == 0;
}
/*!
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