(svn r26058) -Fix: handle the return value of a number of functions better

2013-11-23 13:15:07 +00:00
parent 73474728e3
commit a6fae2c608
10 changed files with 53 additions and 15 deletions
--- a/src/newgrf_config.cpp
+++ b/src/newgrf_config.cpp
@@ -362,7 +362,11 @@ static bool CalcGRFMD5Sum(GRFConfig *config, Subdirectory subdir)

 	size_t start = ftell(f);
 	size = min(size, GRFGetSizeOfDataSection(f));
-	fseek(f, start, SEEK_SET);
+
+	if (fseek(f, start, SEEK_SET) < 0) {
+		FioFCloseFile(f);
+		return false;
+	}

 	/* calculate md5sum */
 	while ((len = fread(buffer, 1, (size > sizeof(buffer)) ? sizeof(buffer) : size, f)) != 0 && size != 0) {