overhaul package and section type validation - makes it easier to read and fixes some bugs in uci changes and uci show without explicit package references

file.c

@@ -119,7 +119,7 @@ static void uci_parse_config(struct uci_context *ctx, char **str)
 	*str += strlen(*str) + 1;
 
 	type = next_arg(ctx, str, true, false);
-	if (!uci_validate_str(type, false))
+	if (!uci_validate_type(type))
 		uci_parse_error(ctx, type, "invalid character in field");
 	name = next_arg(ctx, str, false, true);
 	assert_eol(ctx, str);
@@ -353,7 +353,7 @@ int uci_import(struct uci_context *ctx, FILE *stream, const char *name, struct u
 	 * NB: the config file can still override the package name
 	 */
 	if (name) {
-		UCI_ASSERT(ctx, uci_validate_str(name, false));
+		UCI_ASSERT(ctx, uci_validate_package(name));
 		pctx->name = name;
 	}
 
@@ -394,7 +394,7 @@ static char *uci_config_path(struct uci_context *ctx, const char *name)
 {
 	char *filename;
 
-	UCI_ASSERT(ctx, uci_validate_str(name, false));
+	UCI_ASSERT(ctx, uci_validate_package(name));
 	filename = uci_malloc(ctx, strlen(name) + strlen(ctx->confdir) + 2);
 	sprintf(filename, "%s/%s", ctx->confdir, name);
 
@@ -520,7 +520,7 @@ static char **uci_list_config_files(struct uci_context *ctx)
 		if (!p)
 			continue;
 
-		if (!uci_validate_name(p))
+		if (!uci_validate_package(p))
 			continue;
 
 		configs[i] = buf;

list.c

@@ -322,7 +322,7 @@ uci_lookup_ext_section(struct uci_context *ctx, struct uci_ptr *ptr)
 
 	if (!*name)
 		name = NULL;
-	else if (!uci_validate_str(name, false))
+	else if (!uci_validate_type(name))
 		goto error;
 
 	/* if the given index is negative, it specifies the section number from 
@@ -618,7 +618,7 @@ int uci_set(struct uci_context *ctx, struct uci_ptr *ptr)
 	UCI_ASSERT(ctx, ptr->value);
 	UCI_ASSERT(ctx, ptr->s || (!ptr->option && ptr->section));
 	if (!ptr->option) {
-		UCI_ASSERT(ctx, uci_validate_str(ptr->value, false));
+		UCI_ASSERT(ctx, uci_validate_type(ptr->value));
 	}
 
 	if (!ptr->o && ptr->s && ptr->option) {

util.c

@@ -96,6 +96,16 @@ __plugin bool uci_validate_str(const char *str, bool name)
 	return true;
 }
 
+static inline bool uci_validate_package(const char *str)
+{
+	return uci_validate_str(str, false);
+}
+
+static inline bool uci_validate_type(const char *str)
+{
+	return uci_validate_str(str, false);
+}
+
 static inline bool uci_validate_name(const char *str)
 {
 	return uci_validate_str(str, true);
@@ -159,7 +169,7 @@ int uci_parse_ptr(struct uci_context *ctx, struct uci_ptr *ptr, char *str)
 		goto error;
 
 lastval:
-	if (ptr->package && !uci_validate_str(ptr->package, false))
+	if (ptr->package && !uci_validate_package(ptr->package))
 		goto error;
 	if (ptr->section && !uci_validate_name(ptr->section))
 		ptr->flags |= UCI_LOOKUP_EXTENDED;