X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=shared%2Fread_file.cpp;h=40846546b42ed4f11ca055ad9faafcbcaecc418e;hb=873c8b204ab70622f6e231556cc94d3aab1889ce;hp=2310303dd3345738e0df33710fd72345371d1df1;hpb=eeda8995329601f9f4e35047358400833eeae68e;p=nageru

diff --git a/shared/read_file.cpp b/shared/read_file.cpp
index 2310303..4084654 100644
--- a/shared/read_file.cpp
+++ b/shared/read_file.cpp
@@ -27,6 +27,10 @@ string read_file(const string &filename, const unsigned char *start, const size_
 	}
 
 	int disk_size = ftell(fp);
+	if (disk_size == -1) {
+		perror("ftell");
+		exit(1);
+	}
 
 	ret = fseek(fp, 0, SEEK_SET);
 	if (ret == -1) {