X-Git-Url: https://git.dlugolecki.net.pl/?a=blobdiff_plain;f=gedcom%2Fxref.c;h=a9979181653d14d513ceca7ea379042c9ca613a0;hb=c27f416da8583f06adb78c6c23e11b43a6949f3c;hp=ee58ad02eb7534891760e22acc341bef250a521d;hpb=7b470d2685d5a2479cf710b41d19d62e062b0dd6;p=gedcom-parse.git

diff --git a/gedcom/xref.c b/gedcom/xref.c
index ee58ad0..a997918 100644
--- a/gedcom/xref.c
+++ b/gedcom/xref.c
@@ -28,17 +28,17 @@
 struct xref_value def_xref_val = { XREF_NONE, "<error>", NULL };
 static hash_t *xrefs = NULL;
 
-char* xref_type_str[] = { N_("nothing"),
-                          N_("a family"),
-			  N_("an individual"),
-			  N_("a note"),
-			  N_("a multimedia object"),
-			  N_("a source repository"),
-			  N_("a source"),
-			  N_("a submitter"),
-			  N_("a submission record"),
-			  N_("an application-specific record"),
-                        };
+const char* xref_type_str[] = { N_("nothing"),
+				N_("a family"),
+				N_("an individual"),
+				N_("a note"),
+				N_("a multimedia object"),
+				N_("a source repository"),
+				N_("a source"),
+				N_("a submitter"),
+				N_("a submission record"),
+				N_("an application-specific record"),
+                              };
 
 struct xref_node {
   struct xref_value xref;
@@ -68,6 +68,7 @@ void clear_xref_node(struct xref_node *xr)
   /* Make sure that the 'string' member always contains a valid string */
   if (!xr->xref.string)
     xr->xref.string  = strdup("");
+  if (!xr->xref.string) MEMORY_ERROR;
   xr->xref.object  = NULL;
   xr->defined_type = XREF_NONE;
   xr->used_type    = XREF_NONE;
@@ -78,8 +79,12 @@ void clear_xref_node(struct xref_node *xr)
 struct xref_node *make_xref_node()
 {
   struct xref_node *xr = (struct xref_node *)malloc(sizeof(struct xref_node));
-  xr->xref.string = NULL;
-  clear_xref_node(xr);
+  if (xr) {
+    xr->xref.string = NULL;
+    clear_xref_node(xr);
+  }
+  else
+    MEMORY_ERROR;
   return xr;
 }
 
@@ -96,7 +101,9 @@ void make_xref_table()
   else
     /* Only register initially (if xrefs is still NULL) */
     /* So that it is only registered once */
-    atexit(cleanup_xrefs);
+    if (atexit(cleanup_xrefs) != 0) {
+      gedcom_warning(_("Could not register xref cleanup function"));
+    }
   xrefs = hash_create(HASHCOUNT_T_MAX, NULL, NULL);
   hash_set_allocator(xrefs, xref_alloc, xref_free, NULL);
 }
@@ -126,7 +133,7 @@ int check_xref_table()
   return result;
 }
 
-struct xref_value *gedcom_get_by_xref(char *key)
+struct xref_value *gedcom_get_by_xref(const char *key)
 {
   hnode_t *node = hash_lookup(xrefs, key);
   if (node) {
@@ -137,7 +144,7 @@ struct xref_value *gedcom_get_by_xref(char *key)
     return NULL;
 }
 
-struct xref_value *gedcom_parse_xref(char *raw_value,
+struct xref_value *gedcom_parse_xref(const char *raw_value,
 				     Xref_ctxt ctxt, Xref_type xref_type)
 {
   struct xref_node *xr = NULL;
@@ -147,12 +154,18 @@ struct xref_value *gedcom_parse_xref(char *raw_value,
     xr = (struct xref_node *)hnode_get(node);
   }
   else {
-    char *key = strdup(raw_value);
-    xr = make_xref_node();
-    xr->xref.type = xref_type;
-    free(xr->xref.string);
-    xr->xref.string = strdup(raw_value);
-    hash_alloc_insert(xrefs, key, xr);
+    const char *key = strdup(raw_value);
+    if (key) {
+      xr = make_xref_node();
+      xr->xref.type = xref_type;
+      if (xr->xref.string)
+	free(xr->xref.string);
+      xr->xref.string = strdup(raw_value);
+      if (! xr->xref.string) MEMORY_ERROR;
+      hash_alloc_insert(xrefs, key, xr);
+    }
+    else
+      MEMORY_ERROR;
   }
     
   if (ctxt == XREF_DEFINED && xr->defined_type == XREF_NONE) {