config.c - annotated the comments to point out that the use of get_config() from...

[citadel.git] / citadel / config.c

diff --git a/citadel/config.c b/citadel/config.c
index c6565b35d1696538e80ab5a848a6a547784b4889..303e06d4bd7346311a4e40520911e740bcc9ec75 100644 (file)
--- a/citadel/config.c
+++ b/citadel/config.c
@@ -1,8 +1,15 @@
 /*
- * $Id$
- *
  * Read and write the citadel.config file
  *
+ * Copyright (c) 1987-2012 by the citadel.org team
+ *
+ * This program is open source software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  */
 
 #include "sysdep.h"
@@ -18,6 +25,10 @@
 #include "server.h"
 #include "config.h"
 
+
+#include "ctdl_module.h"
+
+
 struct config config;
 
 /*
@@ -28,6 +39,7 @@ struct config config;
 void get_config(void) {
        FILE *cfp;
        struct stat st;
+       int rv;
 
        if (chdir(ctdl_bbsbase_dir) != 0) {
                fprintf(stderr,
@@ -47,7 +59,14 @@ void get_config(void) {
                                strerror(errno));
                exit(CTDLEXIT_CONFIG);
        }
-       fread((char *) &config, sizeof(struct config), 1, cfp);
+       memset(&config, 0, sizeof(struct config));
+       rv = fread((char *) &config, sizeof(struct config), 1, cfp);
+       if (rv != 1)
+       {
+               fprintf(stderr, 
+                       "Warning: The config file %s has unexpected size. \n",
+                       file_citadel_config);
+       }
        if (fstat(fileno(cfp), &st)) {
                perror(file_citadel_config);
                exit(CTDLEXIT_CONFIG);
@@ -148,11 +167,15 @@ void get_config(void) {
 void put_config(void)
 {
        FILE *cfp;
+       int rv;
 
        if ((cfp = fopen(file_citadel_config, "rb+")) == NULL)
                perror(file_citadel_config);
        else {
-               fwrite((char *) &config, sizeof(struct config), 1, cfp);
+               rv = fwrite((char *) &config, sizeof(struct config), 1, cfp);
+               if (rv == -1)
+                       syslog(LOG_EMERG, "Failed to write: %s [%s]\n", 
+                              file_citadel_config, strerror(errno));
                fclose(cfp);
        }
 }