#include "parser.h"
#include "parser-utils.h"
#include "paths.h"
+#include "file.h"
struct p_item {
struct list_item list;
STATIC_LIST(parsers);
-static const int max_file_size = 1024 * 1024;
+static char *local_path(struct discover_context *ctx,
+ struct discover_device *dev,
+ const char *filename)
+{
+ return join_paths(ctx, dev->mount_path, filename);
+}
+
+int parser_request_file(struct discover_context *ctx,
+ struct discover_device *dev, const char *filename,
+ char **buf, int *len)
-static int read_file(struct discover_context *ctx,
- const char *filename, char **bufp, int *lenp)
{
- struct stat statbuf;
- int rc, fd, i, len;
- char *buf;
+ char *path;
+ int rc;
- fd = open(filename, O_RDONLY);
- if (fd < 0)
+ /* we only support local files at present */
+ if (!dev->mount_path)
return -1;
- rc = fstat(fd, &statbuf);
- if (rc < 0)
- goto err_close;
+ path = local_path(ctx, dev, filename);
- len = statbuf.st_size;
- if (len > max_file_size)
- goto err_close;
+ rc = read_file(ctx, path, buf, len);
- buf = talloc_array(ctx, char, len + 1);
- if (!buf)
- goto err_close;
+ talloc_free(path);
- for (i = 0; i < len; i += rc) {
- rc = read(fd, buf + i, len - i);
+ return rc;
+}
- /* unexpected EOF: trim and return */
- if (rc == 0) {
- len = i;
- break;
- }
+int parser_replace_file(struct discover_context *ctx,
+ struct discover_device *dev, const char *filename,
+ char *buf, int len)
+{
+ bool release;
+ char *path;
+ int rc;
- if (rc < 0)
- goto err_free;
+ if (!dev->mounted)
+ return -1;
+ rc = device_request_write(dev, &release);
+ if (rc) {
+ pb_log("Can't write file %s: device doesn't allow write\n",
+ dev->device_path);
+ return -1;
}
- buf[len] = '\0';
+ path = local_path(ctx, dev, filename);
- close(fd);
- *bufp = buf;
- *lenp = len;
- return 0;
+ rc = replace_file(path, buf, len);
-err_free:
- talloc_free(buf);
-err_close:
- close(fd);
- return -1;
-}
+ talloc_free(path);
-static char *local_path(struct discover_context *ctx,
- const char *filename)
-{
- return join_paths(ctx, ctx->device->mount_path, filename);
+ device_release_write(dev, release);
+
+ return rc;
}
static int download_config(struct discover_context *ctx, char **buf, int *len)
{
- unsigned tempfile;
- const char *file;
+ struct load_url_result *result;
int rc;
- file = load_url(ctx, ctx->conf_url, &tempfile);
- if (!file)
+ result = load_url(ctx, ctx->conf_url);
+ if (!result)
return -1;
- rc = read_file(ctx, file, buf, len);
+ rc = read_file(ctx, result->local, buf, len);
if (rc)
goto out_clean;
return 0;
out_clean:
- if (tempfile)
- unlink(file);
+ if (result->cleanup_local)
+ unlink(result->local);
return -1;
}
int rc, len;
char *buf;
- path = local_path(ctx, *filename);
+ path = local_path(ctx, ctx->device, *filename);
if (!path)
continue;
{
struct p_item* i = talloc(NULL, struct p_item);
+ printf("%s: %s\n", __func__, parser->name);
+
i->parser = parser;
list_add(&parsers, &i->list);
}