1 files changed, 2 insertions, 0 deletions
diff --git a/config.h b/config.h
index c997750..ce80177 100644
--- a/config.h
+++ b/config.h
@@ -13,6 +13,7 @@
 #define DEBUG_CRIT 0
 #define DEBUG_SOME 1
 #define DEBUG_FULL 2
+#define ECONFINT 1 // errno value if getconfint() failed
 
 #define MAXCHAR 1000
 
@@ -24,6 +25,7 @@ int getconfstr(char *confname, char *filename, char* dest);
 
 // Returns the avlue of the configuration option with name
 // 'confname' from configuration file 'filename'.
+// Sets errno to 0 on success, or ECONFINT if it fails, in which case the return value is undefined.
 int getconfint(char *confname, char *filename);
 
 // Check the password provided in the string 'str' against what is in