Initial support for multiple UIs

[petitboot] / discover / native-parser.c

diff --git a/discover/native-parser.c b/discover/native-parser.c
new file mode 100644 (file)
index 0000000..24713b1
--- /dev/null
+++ b/discover/native-parser.c
@@ -0,0 +1,124 @@
+
+#include "parser.h"
+#include "params.h"
+#include "paths.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+const char *conf_filename = "/boot/petitboot.conf";
+
+static struct boot_option *cur_opt;
+static struct device *dev;
+static const char *devpath;
+int device_added;
+
+int check_and_add_device(struct device *dev)
+{
+       if (!dev->icon_file)
+               dev->icon_file = strdup(generic_icon_file(guess_device_type()));
+
+       return !add_device(dev);
+}
+
+static int section(char *section_name)
+{
+       if (!device_added++ && !check_and_add_device(dev))
+               return 0;
+
+       if (cur_opt) {
+               add_boot_option(cur_opt);
+               free_boot_option(cur_opt);
+       }
+
+       cur_opt = malloc(sizeof(*cur_opt));
+       memset(cur_opt, 0, sizeof(*cur_opt));
+       return 1;
+}
+
+
+static void set_boot_option_parameter(struct boot_option *opt,
+               const char *name, const char *value)
+{
+       if (streq(name, "name"))
+               opt->name = strdup(value);
+
+       else if (streq(name, "description"))
+               opt->description = strdup(value);
+
+       else if (streq(name, "image"))
+               opt->boot_image_file = resolve_path(value, devpath);
+
+       else if (streq(name, "icon"))
+               opt->icon_file = resolve_path(value, devpath);
+
+       else if (streq(name, "initrd"))
+               opt->initrd_file =resolve_path(value, devpath);
+
+       else if (streq(name, "args"))
+               opt->boot_args = strdup(value);
+
+       else
+               fprintf(stderr, "Unknown parameter %s\n", name);
+}
+
+static void set_device_parameter(struct device *dev,
+               const char *name, const char *value)
+{
+       if (streq(name, "name"))
+               dev->name = strdup(value);
+
+       else if (streq(name, "description"))
+               dev->description = strdup(value);
+
+       else if (streq(name, "icon"))
+               dev->icon_file = resolve_path(value, devpath);
+}
+
+static int parameter(char *param_name, char *param_value)
+{
+       if (cur_opt)
+               set_boot_option_parameter(cur_opt, param_name, param_value);
+       else
+               set_device_parameter(dev, param_name, param_value);
+       return 1;
+}
+
+
+int parse(const char *device)
+{
+       char *filepath;
+       int rc;
+
+       filepath = resolve_path(conf_filename, device);
+
+       cur_opt = NULL;
+       dev = malloc(sizeof(*dev));
+       memset(dev, 0, sizeof(*dev));
+       dev->id = strdup(device);
+
+       rc = pm_process(filepath, section, parameter);
+       if (!rc)
+               return 0;
+
+       if (cur_opt) {
+               add_boot_option(cur_opt);
+               free_boot_option(cur_opt);
+       }
+
+       cur_opt = NULL;
+
+       free(filepath);
+
+       return 1;
+}
+
+struct parser native_parser = {
+       .name = "native petitboot parser",
+       .priority = 100,
+       .parse    = parse
+};
+
+
+