--- /dev/null
+/*
+ * Copyright (C) 2009 Sony Computer Entertainment Inc.
+ * Copyright 2009 Sony Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#if defined(HAVE_CONFIG_H)
+#include "config.h"
+#endif
+
+#define _GNU_SOURCE
+#include <assert.h>
+#include <string.h>
+
+#include "log/log.h"
+#include "talloc/talloc.h"
+#include "url.h"
+
+/**
+ * pb_scheme_info - Helper for parsing URLs.
+ */
+
+struct pb_scheme_info {
+ enum pb_url_scheme scheme;
+ const char *str;
+ unsigned int str_len;
+};
+
+/**
+ * pb_url_find_scheme - Find the pb_scheme_info for a URL string.
+ */
+
+static const struct pb_scheme_info *pb_url_find_scheme(const char *url_str)
+{
+ static const struct pb_scheme_info a[] = {
+ {
+ .scheme = pb_url_file,
+ .str = "file://",
+ .str_len = sizeof("file://") - 1,
+ },
+ {
+ .scheme = pb_url_ftp,
+ .str = "ftp://",
+ .str_len = sizeof("ftp://") - 1,
+ },
+ {
+ .scheme = pb_url_http,
+ .str = "http://",
+ .str_len = sizeof("http://") - 1,
+ },
+ {
+ .scheme = pb_url_https,
+ .str = "https://",
+ .str_len = sizeof("https://") - 1,
+ },
+ {
+ .scheme = pb_url_nfs,
+ .str = "nfs://",
+ .str_len = sizeof("nfs://") - 1,
+ },
+ {
+ .scheme = pb_url_sftp,
+ .str = "sftp://",
+ .str_len = sizeof("sftp://") - 1,
+ },
+ {
+ .scheme = pb_url_tftp,
+ .str = "tftp://",
+ .str_len = sizeof("tftp://") - 1,
+ },
+ };
+ static const struct pb_scheme_info file_scheme = {
+ .str = "",
+ .scheme = pb_url_file,
+ };
+ unsigned int i;
+
+ for (i = 0; i < sizeof(a) / sizeof(a[0]); i++)
+ if (!strncasecmp(url_str, a[i].str, a[i].str_len))
+ return &a[i];
+
+ /* Assume this is a non-url local file. */
+
+ return &file_scheme;
+}
+
+/**
+ * pb_url_parse - Parse a remote file URL.
+ * @ctx: The talloc context to associate with the returned string.
+ *
+ * Returns a talloc'ed struct pb_url instance on success, or NULL on error.
+ */
+
+struct pb_url *pb_url_parse(void *ctx, const char *url_str)
+{
+ const struct pb_scheme_info *si;
+ struct pb_url *url;
+ const char *p;
+
+ pb_log("%s: '%s'\n", __func__, url_str);
+
+ if (!url_str || !*url_str) {
+ assert(0 && "bad url");
+ return NULL;
+ }
+
+ url = talloc_zero(ctx, struct pb_url);
+
+ if (!url)
+ return NULL;
+
+ si = pb_url_find_scheme(url_str);
+
+ url->scheme = si->scheme;
+ p = url_str + si->str_len;
+
+ url->full = talloc_strdup(url, url_str);
+
+ if (url->scheme == pb_url_file) {
+ url->port = NULL;
+ url->host = NULL;
+ url->path = talloc_strdup(url, p);
+ } else {
+ int len;
+ const char *col;
+ const char *path;
+
+ path = strchr(p, '/');
+
+ if (!path) {
+ pb_log("%s: parse path failed '%s'\n", p);
+ goto fail;
+ }
+
+ col = strchr(p, ':');
+
+ if (col) {
+ len = path - col - 1;
+ url->port = len ? talloc_strndup(url, col + 1, len)
+ : NULL;
+ len = col - p;
+ url->host = len ? talloc_strndup(url, p, len) : NULL;
+ } else {
+ url->port = NULL;
+ url->host = talloc_strndup(url, p, path - p);
+ }
+ url->path = talloc_strdup(url, path);
+ }
+
+ p = strrchr(url->path, '/');
+
+ if (p) {
+ p++;
+ url->dir = talloc_strndup(url, url->path, p - url->path);
+ url->file = talloc_strdup(url, p);
+ } else {
+ url->dir = NULL;
+ url->file = talloc_strdup(url, url->path);
+ }
+
+ pb_log(" scheme %d\n", url->scheme);
+ pb_log(" host '%s'\n", url->host);
+ pb_log(" port '%s'\n", url->port);
+ pb_log(" path '%s'\n", url->path);
+ pb_log(" dir '%s'\n", url->dir);
+ pb_log(" file '%s'\n", url->file);
+
+ return url;
+
+fail:
+ talloc_free(url);
+ return NULL;
+}
--- /dev/null
+/*
+ * Copyright (C) 2009 Sony Computer Entertainment Inc.
+ * Copyright 2009 Sony Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#if !defined(_PB_URL_PARSER_H)
+#define _PB_URL_PARSER_H
+
+/**
+ * enum pb_url_scheme - Enumeration of the URL schemes we can handle.
+ */
+
+enum pb_url_scheme {
+ pb_url_unknown = 0,
+ pb_url_file,
+ pb_url_ftp,
+ pb_url_http,
+ pb_url_https,
+ pb_url_nfs,
+ pb_url_sftp,
+ pb_url_tftp,
+};
+
+/**
+ * struct pb_url - Parsed URL info.
+ * @scheme: The enum pb_url_scheme for this URL.
+ * @full: The full URL = scheme://host:port/path.
+ * @host: The host part of URL.
+ * @port: The port part of URL.
+ * @path: The path part of URL.
+ * @dir: The dir part of path.
+ * @file: The file part of path.
+ *
+ * For info on URL syntax see:
+ * http://www.ietf.org/rfc/rfc3986.txt
+ */
+
+struct pb_url {
+ enum pb_url_scheme scheme;
+ char *full;
+ char *host;
+ char *port;
+ char *path;
+ char *dir;
+ char *file;
+};
+
+struct pb_url *pb_url_parse(void *ctx, const char *url_str);
+
+#endif
projects / petitboot / commitdiff