From 171170de64e0faff8d0e93581d9971439f474cbd Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Wed, 23 Jan 2008 16:06:29 +0100
Subject: [PATCH] implement more suggestions by lorenz schori

---
 Makefile |  2 +-
 cli.c    |  4 ++--
 libuci.c | 54 ++++++++----------------------------------------------
 uci.h    |  8 ++++----
 util.c   | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 67 insertions(+), 53 deletions(-)
 create mode 100644 util.c

diff --git a/Makefile b/Makefile
index c32626d..ecfa8bc 100644
--- a/Makefile
+++ b/Makefile
@@ -14,7 +14,7 @@ cli.o: cli.c uci.h
 uci: cli.o libuci.a
 	$(CC) $(CFLAGS) -o $@ $^
 
-libuci.o: libuci.c file.c uci.h list.c err.h
+libuci.o: libuci.c file.c uci.h list.c err.h util.c
 libuci.a: libuci.o
 	rm -f $@
 	$(AR) rc $@ $^
diff --git a/cli.c b/cli.c
index 85fab6f..b7ddd51 100644
--- a/cli.c
+++ b/cli.c
@@ -107,13 +107,13 @@ int main(int argc, char **argv)
 {
 	int ret;
 
-	ctx = uci_alloc();
+	ctx = uci_alloc_context();
 	if (argc < 2)
 		uci_usage(argc, argv);
 	ret = uci_cmd(argc - 1, argv + 1);
 	if (ret == 255)
 		uci_usage(argc, argv);
-	uci_free(ctx);
+	uci_free_context(ctx);
 
 	return ret;
 }
diff --git a/libuci.c b/libuci.c
index af240ce..400acd8 100644
--- a/libuci.c
+++ b/libuci.c
@@ -34,54 +34,12 @@ static const char *uci_errstr[] = {
 	[UCI_ERR_UNKNOWN] =  "Unknown error",
 };
 
-
-/*
- * UCI wrapper for malloc, which uses exception handling
- */
-static void *uci_malloc(struct uci_context *ctx, size_t size)
-{
-	void *ptr;
-
-	ptr = malloc(size);
-	if (!ptr)
-		UCI_THROW(ctx, UCI_ERR_MEM);
-	memset(ptr, 0, size);
-
-	return ptr;
-}
-
-/*
- * UCI wrapper for realloc, which uses exception handling
- */
-static void *uci_realloc(struct uci_context *ctx, void *ptr, size_t size)
-{
-	ptr = realloc(ptr, size);
-	if (!ptr)
-		UCI_THROW(ctx, UCI_ERR_MEM);
-
-	return ptr;
-}
-
-/*
- * UCI wrapper for strdup, which uses exception handling
- */
-static char *uci_strdup(struct uci_context *ctx, const char *str)
-{
-	char *ptr;
-
-	ptr = strdup(str);
-	if (!ptr)
-		UCI_THROW(ctx, UCI_ERR_MEM);
-
-	return ptr;
-}
-
+#include "util.c"
 #include "list.c"
 #include "file.c"
 
-/* externally visible functions */
-
-struct uci_context *uci_alloc(void)
+/* exported functions */
+struct uci_context *uci_alloc_context(void)
 {
 	struct uci_context *ctx;
 
@@ -92,15 +50,19 @@ struct uci_context *uci_alloc(void)
 	return ctx;
 }
 
-void uci_free(struct uci_context *ctx)
+void uci_free_context(struct uci_context *ctx)
 {
 	struct uci_element *e, *tmp;
 
+	UCI_TRAP_SAVE(ctx, ignore);
 	uci_cleanup(ctx);
 	uci_foreach_element_safe(&ctx->root, tmp, e) {
 		uci_free_package(uci_to_package(e));
 	}
 	free(ctx);
+	UCI_TRAP_RESTORE(ctx);
+
+ignore:
 	return;
 }
 
diff --git a/uci.h b/uci.h
index a4e3f96..b9b5cb3 100644
--- a/uci.h
+++ b/uci.h
@@ -60,14 +60,14 @@ struct uci_parse_context;
 
 
 /**
- * uci_alloc: Allocate a new uci context
+ * uci_alloc_context: Allocate a new uci context
  */
-extern struct uci_context *uci_alloc(void);
+extern struct uci_context *uci_alloc_context(void);
 
 /**
- * uci_free: Free the uci context including all of its data
+ * uci_free_context: Free the uci context including all of its data
  */
-extern void uci_free(struct uci_context *ctx);
+extern void uci_free_context(struct uci_context *ctx);
 
 /**
  * uci_perror: Print the last uci error that occured
diff --git a/util.c b/util.c
new file mode 100644
index 0000000..c9be293
--- /dev/null
+++ b/util.c
@@ -0,0 +1,52 @@
+/*
+ * libuci - Library for the Unified Configuration Interface
+ * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 2.1
+ * as published by the Free Software Foundation
+ *
+ * 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.
+ */
+
+/*
+ * This file contains wrappers to standard functions, which
+ * throw exceptions upon failure.
+ */
+
+static void *uci_malloc(struct uci_context *ctx, size_t size)
+{
+	void *ptr;
+
+	ptr = malloc(size);
+	if (!ptr)
+		UCI_THROW(ctx, UCI_ERR_MEM);
+	memset(ptr, 0, size);
+
+	return ptr;
+}
+
+static void *uci_realloc(struct uci_context *ctx, void *ptr, size_t size)
+{
+	ptr = realloc(ptr, size);
+	if (!ptr)
+		UCI_THROW(ctx, UCI_ERR_MEM);
+
+	return ptr;
+}
+
+static char *uci_strdup(struct uci_context *ctx, const char *str)
+{
+	char *ptr;
+
+	ptr = strdup(str);
+	if (!ptr)
+		UCI_THROW(ctx, UCI_ERR_MEM);
+
+	return ptr;
+}
+
+
-- 
2.11.0