X-Git-Url: http://git.ozlabs.org/?p=petitboot;a=blobdiff_plain;f=discover%2Fparser.h;h=fc165c5aeda494a9051b368a86f633d83dd4c0d8;hp=03ba8d4d704134b3a9a239c9da9f6657ff449505;hb=bdd5c29b008a4484ed141f934d97465d673a10b7;hpb=5be946cda7b8e2271ade6188ca3f5dc068826619

diff --git a/discover/parser.h b/discover/parser.h
index 03ba8d4..fc165c5 100644
--- a/discover/parser.h
+++ b/discover/parser.h
@@ -2,6 +2,11 @@
 #define _PARSER_H
 
 #include <stdbool.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "device-handler.h"
 
 struct discover_context;
 struct device_handler;
@@ -25,9 +30,7 @@ struct resource;
  */
 struct parser {
 	char			*name;
-	const char * const	*filenames;
-	int			(*parse)(struct discover_context *ctx,
-						char *buf, int len);
+	int			(*parse)(struct discover_context *ctx);
 	bool			(*resolve_resource)(
 						struct device_handler *handler,
 						struct resource *res);
@@ -48,4 +51,30 @@ void parser_init(void);
 void iterate_parsers(struct discover_context *ctx);
 int parse_user_event(struct discover_context *ctx, struct event *event);
 
+/* File IO functions for parsers; these should be the only interface that
+ * parsers use to access a device's filesystem.
+ *
+ * These are intended for small amounts of data, typically text
+ * configuration and state files.  Note that parser_request_file,
+ * and parser_replace_file work only on non-directories.
+ */
+int parser_request_file(struct discover_context *ctx,
+		struct discover_device *dev, const char *filename,
+		char **buf, int *len);
+int parser_replace_file(struct discover_context *ctx,
+		struct discover_device *dev, const char *filename,
+		char *buf, int len);
+int parser_request_url(struct discover_context *ctx, struct pb_url *url,
+		char **buf, int *len);
+/* parser_stat_path returns 0 if path can be stated on dev by the
+ * running user.  Note that this function follows symlinks, like the
+ * stat system call.  When the function returns 0, also fills in
+ * statbuf for the path.  Returns non-zero on error.  This function
+ * does not have the limitations on file size that the functions above
+ * do.  Unlike some of the functions above, this function also works
+ * on directories. */
+int parser_stat_path(struct discover_context *ctx,
+		struct discover_device *dev, const char *path,
+		struct stat *statbuf);
+
 #endif /* _PARSER_H */