Fix compiler warnings with savegame and response file code.

Subversion-branch: /trunk/chocolate-doom
Subversion-revision: 1926

1 files changed, 20 insertions, 2 deletions

diff --git a/src/p_saveg.c b/src/p_saveg.c
index e557e494..d2a4393d 100644
--- a/src/p_saveg.c
+++ b/src/p_saveg.c
@@ -44,6 +44,7 @@
 
 FILE *save_stream;
 int savegamelength;
+boolean savegame_error;
 
 // Get the filename of a temporary file to write the savegame to.  After
 // the file has been successfully saved, it will be renamed to the 
@@ -88,14 +89,31 @@ static byte saveg_read8(void)
 {
     byte result;
 
-    fread(&result, 1, 1, save_stream);
+    if (fread(&result, 1, 1, save_stream) < 1)
+    {
+        if (!savegame_error)
+        {
+            fprintf(stderr, "saveg_read8: Unexpected end of file while "
+                            "reading save game\n");
+
+            savegame_error = true;
+        }
+    }
 
     return result;
 }
 
 static void saveg_write8(byte value)
 {
-    fwrite(&value, 1, 1, save_stream);
+    if (fwrite(&value, 1, 1, save_stream) < 1)
+    {
+        if (!savegame_error)
+        {
+            fprintf(stderr, "saveg_write8: Error while writing save game\n");
+
+            savegame_error = true;
+        }
+    }
 }
 
 static short saveg_read16(void)