Fix compiler warnings with savegame and response file code.

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

4 files changed, 32 insertions, 4 deletions

diff --git a/src/g_game.c b/src/g_game.c
index 542c1a7d..b0532f42 100644
--- a/src/g_game.c
+++ b/src/g_game.c
@@ -1490,6 +1490,8 @@ void G_DoLoadGame (void)
         return;
     }
 
+    savegame_error = false;
+
     if (!P_ReadSaveGameHeader())
     {
         fclose(save_stream);
@@ -1557,6 +1559,8 @@ void G_DoSaveGame (void)
         return;
     }
 
+    savegame_error = false;
+
     P_WriteSaveGameHeader(savedescription);
  
     P_ArchivePlayers (); 
diff --git a/src/m_argv.c b/src/m_argv.c
index 78404d35..7fc15863 100644
--- a/src/m_argv.c
+++ b/src/m_argv.c
@@ -89,12 +89,17 @@ static void LoadResponseFile(int argv_index)
     size = M_FileLength(handle);
 
     // Read in the entire file
-    // Allocate one byte extra - this is incase there is an argument
+    // Allocate one byte extra - this is in case there is an argument
     // at the end of the response file, in which case a '\0' will be 
     // needed.
 
     file = malloc(size + 1);
-    fread(file, size, 1, handle);
+
+    if (fread(file, 1, size, handle) < size)
+    {
+        I_Error("Failed to read entire response file");
+    }
+
     fclose(handle);
 
     // Create new arguments list array
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)
diff --git a/src/p_saveg.h b/src/p_saveg.h
index 3a96cc3e..5488289c 100644
--- a/src/p_saveg.h
+++ b/src/p_saveg.h
@@ -64,6 +64,7 @@ void P_ArchiveSpecials (void);
 void P_UnArchiveSpecials (void);
 
 extern FILE *save_stream;
+extern boolean savegame_error;
 
 
 #endif