Separate parsing infrastructure and add test wrapper

[petitboot] / devices / parser.c

diff --git a/devices/parser.c b/devices/parser.c
new file mode 100644 (file)
index 0000000..b9edff7
--- /dev/null
+++ b/devices/parser.c
@@ -0,0 +1,99 @@
+
+#include <petitboot-paths.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "parser.h"
+
+extern struct parser native_parser;
+extern struct parser yaboot_parser;
+extern struct parser kboot_parser;
+
+/* array of parsers, ordered by priority */
+static struct parser *parsers[] = {
+       &native_parser,
+       &yaboot_parser,
+       &kboot_parser,
+       NULL
+};
+
+void iterate_parsers(const char *devpath, const char *mountpoint)
+{
+       int i;
+
+       pb_log("trying parsers for %s@%s\n", devpath, mountpoint);
+
+       for (i = 0; parsers[i]; i++) {
+               pb_log("\ttrying parser '%s'\n", parsers[i]->name);
+               /* just use a dummy device path for now */
+               if (parsers[i]->parse(devpath, mountpoint))
+                       /*return*/;
+       }
+       pb_log("\tno boot_options found\n");
+}
+
+/* convenience functions for parsers */
+void free_device(struct device *dev)
+{
+       if (!dev)
+               return;
+       if (dev->id)
+               free(dev->id);
+       if (dev->name)
+               free(dev->name);
+       if (dev->description)
+               free(dev->description);
+       if (dev->icon_file)
+               free(dev->icon_file);
+       free(dev);
+}
+
+void free_boot_option(struct boot_option *opt)
+{
+       if (!opt)
+               return;
+       if (opt->name)
+               free(opt->name);
+       if (opt->description)
+               free(opt->description);
+       if (opt->icon_file)
+               free(opt->icon_file);
+       if (opt->boot_image_file)
+               free(opt->boot_image_file);
+       if (opt->initrd_file)
+               free(opt->initrd_file);
+       if (opt->boot_args)
+               free(opt->boot_args);
+       free(opt);
+}
+
+char *join_paths(const char *a, const char *b)
+{
+       char *full_path;
+
+       full_path = malloc(strlen(a) + strlen(b) + 2);
+
+       strcpy(full_path, a);
+       if (b[0] != '/')
+               strcat(full_path, "/");
+       strcat(full_path, b);
+
+       return full_path;
+}
+
+const char *generic_icon_file(enum generic_icon_type type)
+{
+       switch (type) {
+       case ICON_TYPE_DISK:
+               return artwork_pathname("hdd.png");
+       case ICON_TYPE_USB:
+               return artwork_pathname("usbpen.png");
+       case ICON_TYPE_OPTICAL:
+               return artwork_pathname("cdrom.png");
+       case ICON_TYPE_NETWORK:
+       case ICON_TYPE_UNKNOWN:
+               break;
+       }
+       return artwork_pathname("hdd.png");
+}
+