1 files changed, 38 insertions, 5 deletions

diff --git a/libpcsxcore/cdriso.c b/libpcsxcore/cdriso.c
index dde21bc..9ca4172 100644
--- a/libpcsxcore/cdriso.c
+++ b/libpcsxcore/cdriso.c
@@ -327,6 +327,14 @@ static int parsetoc(const char *isofile) {
 				return -1;
 			}
 		}
+		// check if it's really a TOC named as a .cue
+		fgets(linebuf, sizeof(linebuf), fi);
+		token = strtok(tmp, " ");
+		if (strncmp(token, "CD", 2) != 0 && strcmp(token, "CATALOG") != 0) {
+			fclose(fi);
+			return -1;
+		}
+		fseek(fi, 0, SEEK_SET);
 	}
 
 	memset(&ti, 0, sizeof(ti));
@@ -1227,10 +1235,7 @@ static long CALLBACK ISOopen(void) {
 	CDR_getBuffer = ISOgetBuffer;
 	cdimg_read_func = cdread_normal;
 
-	if (parsecue(GetIsoFile()) == 0) {
-		SysPrintf("[+cue]");
-	}
-	else if (parsetoc(GetIsoFile()) == 0) {
+	if (parsetoc(GetIsoFile()) == 0) {
 		SysPrintf("[+toc]");
 	}
 	else if (parseccd(GetIsoFile()) == 0) {
@@ -1239,6 +1244,9 @@ static long CALLBACK ISOopen(void) {
 	else if (parsemds(GetIsoFile()) == 0) {
 		SysPrintf("[+mds]");
 	}
+	else if (parsecue(GetIsoFile()) == 0) {
+		SysPrintf("[+cue]");
+	}
 	if (handlepbp(GetIsoFile()) == 0) {
 		SysPrintf("[pbp]");
 		CDR_getBuffer = ISOgetBuffer_compr;
@@ -1257,8 +1265,33 @@ static long CALLBACK ISOopen(void) {
 		SysPrintf("[+sbi]");
 	}
 
-	// guess whether it is mode1/2048
 	fseek(cdHandle, 0, SEEK_END);
+
+	// maybe user selected metadata file instead of main .bin ..
+	if (ftell(cdHandle) < 2352 * 0x10) {
+		static const char *exts[] = { ".bin", ".BIN", ".img", ".IMG" };
+		char tmp[MAXPATHLEN], *p;
+		FILE *tmpf;
+		size_t i;
+
+		strncpy(tmp, GetIsoFile(), sizeof(tmp));
+		tmp[MAXPATHLEN - 1] = '\0';
+		if (strlen(tmp) >= 4) {
+			p = tmp + strlen(tmp) - 4;
+			for (i = 0; i < sizeof(exts) / sizeof(exts[0]); i++) {
+				strcpy(p, exts[i]);
+				tmpf = fopen(tmp, "rb");
+				if (tmpf != NULL) {
+					fclose(cdHandle);
+					cdHandle = tmpf;
+					fseek(cdHandle, 0, SEEK_END);
+					break;
+				}
+			}
+		}
+	}
+
+	// guess whether it is mode1/2048
 	if (ftell(cdHandle) % 2048 == 0) {
 		unsigned int modeTest = 0;
 		fseek(cdHandle, 0, SEEK_SET);