#include "parser.h"
#include "parser-utils.h"
#include "paths.h"
+#include "file.h"
-static int n_parsers;
-static struct parser **parsers;
+struct p_item {
+ struct list_item list;
+ struct parser *parser;
+};
-static const int max_file_size = 1024 * 1024;
-
-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;
-
- fd = open(filename, O_RDONLY);
- if (fd < 0)
- return -1;
-
- rc = fstat(fd, &statbuf);
- if (rc < 0)
- goto err_close;
-
- len = statbuf.st_size;
- if (len > max_file_size)
- goto err_close;
-
- buf = talloc_array(ctx, char, len);
- if (!buf)
- goto err_close;
-
- for (i = 0; i < len; i += rc) {
- rc = read(fd, buf + i, len - i);
-
- /* unexpected EOF: trim and return */
- if (rc == 0) {
- len = i;
- break;
- }
-
- if (rc < 0)
- goto err_free;
-
- }
-
- close(fd);
- *bufp = buf;
- *lenp = len;
- return 0;
-
-err_free:
- talloc_free(buf);
-err_close:
- close(fd);
- return -1;
-}
+STATIC_LIST(parsers);
static char *local_path(struct discover_context *ctx,
const char *filename)
rc = read_file(ctx, path, &buf, &len);
if (!rc) {
+ pb_log("Running parser %s on file %s\n",
+ parser->name, *filename);
parser->parse(ctx, buf, len);
talloc_free(buf);
}
void iterate_parsers(struct discover_context *ctx, enum conf_method method)
{
- int rc, i, len;
+ struct p_item* i;
+ int rc, len;
char *buf;
pb_log("trying parsers for %s\n", ctx->device->device->id);
switch (method) {
case CONF_METHOD_LOCAL_FILE:
- for (i = 0; i < n_parsers; i++) {
- if (parsers[i]->method != CONF_METHOD_LOCAL_FILE)
+ list_for_each_entry(&parsers, i, list) {
+ if (i->parser->method != CONF_METHOD_LOCAL_FILE)
continue;
- pb_log("\ttrying parser '%s'\n", parsers[i]->name);
- ctx->parser = parsers[i];
+ pb_log("\ttrying parser '%s'\n", i->parser->name);
+ ctx->parser = i->parser;
iterate_parser_files(ctx, ctx->parser);
}
ctx->parser = NULL;
case CONF_METHOD_DHCP:
rc = download_config(ctx, &buf, &len);
- if (rc)
+ if (rc) {
+ pb_log("\tdownload failed, aborting\n");
return;
+ }
- for (i = 0; i < n_parsers; i++) {
- if (parsers[i]->method != method)
+ list_for_each_entry(&parsers, i, list) {
+ if (i->parser->method != method)
continue;
- pb_log("\ttrying parser '%s'\n", parsers[i]->name);
- ctx->parser = parsers[i];
- parsers[i]->parse(ctx, buf, len);
+ pb_log("\ttrying parser '%s'\n", i->parser->name);
+ ctx->parser = i->parser;
+ i->parser->parse(ctx, buf, len);
}
break;
void __register_parser(struct parser *parser)
{
- parsers = talloc_realloc(NULL, parsers, struct parser *, n_parsers + 1);
- parsers[n_parsers] = parser;
- n_parsers++;
+ struct p_item* i = talloc(NULL, struct p_item);
+
+ i->parser = parser;
+ list_add(&parsers, &i->list);
}
void parser_init(void)