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-rw-r--r--options/path.c238
1 files changed, 238 insertions, 0 deletions
diff --git a/options/path.c b/options/path.c
new file mode 100644
index 0000000000..a2b2f135c5
--- /dev/null
+++ b/options/path.c
@@ -0,0 +1,238 @@
+/*
+ * Get path to config dir/file.
+ *
+ * Return Values:
+ * Returns the pointer to the ALLOCATED buffer containing the
+ * zero terminated path string. This buffer has to be FREED
+ * by the caller.
+ *
+ * This file is part of MPlayer.
+ *
+ * MPlayer 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <errno.h>
+#include "config.h"
+#include "mpvcore/mp_msg.h"
+#include "options/path.h"
+#include "talloc.h"
+#include "osdep/io.h"
+#include "osdep/path.h"
+
+typedef char *(*lookup_fun)(const char *);
+static const lookup_fun config_lookup_functions[] = {
+ mp_find_user_config_file,
+#if HAVE_COCOA
+ mp_get_macosx_bundled_path,
+#endif
+ mp_find_global_config_file,
+ NULL
+};
+
+char *mp_find_config_file(const char *filename)
+{
+ for (int i = 0; config_lookup_functions[i] != NULL; i++) {
+ char *path = config_lookup_functions[i](filename);
+ if (!path) continue;
+
+ if (mp_path_exists(path))
+ return path;
+
+ talloc_free(path);
+ }
+ return NULL;
+}
+
+char *mp_find_user_config_file(const char *filename)
+{
+ char *homedir = getenv("MPV_HOME");
+ char *configdir = NULL;
+ char *result = NULL;
+
+ if (!homedir) {
+#ifdef _WIN32
+ result = mp_get_win_config_path(filename);
+#endif
+ homedir = getenv("HOME");
+ configdir = ".mpv";
+ }
+
+ if (!result && homedir) {
+ char *temp = mp_path_join(NULL, bstr0(homedir), bstr0(configdir));
+ result = mp_path_join(NULL, bstr0(temp), bstr0(filename));
+ talloc_free(temp);
+ }
+
+ mp_msg(MSGT_GLOBAL, MSGL_V, "mp_find_user_config_file('%s') -> '%s'\n",
+ filename ? filename : "(NULL)", result ? result : "(NULL)");
+ return result;
+}
+
+char *mp_find_global_config_file(const char *filename)
+{
+ if (filename) {
+ return mp_path_join(NULL, bstr0(MPLAYER_CONFDIR), bstr0(filename));
+ } else {
+ return talloc_strdup(NULL, MPLAYER_CONFDIR);
+ }
+}
+
+char *mp_get_user_path(void *talloc_ctx, const char *path)
+{
+ if (!path)
+ return NULL;
+ bstr bpath = bstr0(path);
+ if (bstr_eatstart0(&bpath, "~")) {
+ // parse to "~" <prefix> "/" <rest>
+ bstr prefix, rest;
+ if (bstr_split_tok(bpath, "/", &prefix, &rest)) {
+ const char *rest0 = rest.start; // ok in this case
+ char *res = NULL;
+ if (bstr_equals0(prefix, "~"))
+ res = talloc_steal(talloc_ctx, mp_find_user_config_file(rest0));
+ if (bstr_equals0(prefix, ""))
+ res = mp_path_join(talloc_ctx, bstr0(getenv("HOME")), rest);
+ if (res)
+ return res;
+ }
+ }
+ return talloc_strdup(talloc_ctx, path);
+}
+
+char *mp_basename(const char *path)
+{
+ char *s;
+
+#if HAVE_DOS_PATHS
+ s = strrchr(path, '\\');
+ if (s)
+ path = s + 1;
+ s = strrchr(path, ':');
+ if (s)
+ path = s + 1;
+#endif
+ s = strrchr(path, '/');
+ return s ? s + 1 : (char *)path;
+}
+
+struct bstr mp_dirname(const char *path)
+{
+ struct bstr ret = {
+ (uint8_t *)path, mp_basename(path) - path
+ };
+ if (ret.len == 0)
+ return bstr0(".");
+ return ret;
+}
+
+char *mp_splitext(const char *path, bstr *root)
+{
+ assert(path);
+ const char *split = strrchr(path, '.');
+ if (!split)
+ split = path + strlen(path);
+ if (root)
+ *root = (bstr){.start = (char *)path, .len = path - split};
+ return (char *)split;
+}
+
+char *mp_path_join(void *talloc_ctx, struct bstr p1, struct bstr p2)
+{
+ if (p1.len == 0)
+ return bstrdup0(talloc_ctx, p2);
+ if (p2.len == 0)
+ return bstrdup0(talloc_ctx, p1);
+
+#if HAVE_DOS_PATHS
+ if (p2.len >= 2 && p2.start[1] == ':'
+ || p2.start[0] == '\\' || p2.start[0] == '/')
+#else
+ if (p2.start[0] == '/')
+#endif
+ return bstrdup0(talloc_ctx, p2); // absolute path
+
+ bool have_separator;
+ int endchar1 = p1.start[p1.len - 1];
+#if HAVE_DOS_PATHS
+ have_separator = endchar1 == '/' || endchar1 == '\\'
+ || p1.len == 2 && endchar1 == ':'; // "X:" only
+#else
+ have_separator = endchar1 == '/';
+#endif
+
+ return talloc_asprintf(talloc_ctx, "%.*s%s%.*s", BSTR_P(p1),
+ have_separator ? "" : "/", BSTR_P(p2));
+}
+
+char *mp_getcwd(void *talloc_ctx)
+{
+ char *wd = talloc_array(talloc_ctx, char, 20);
+ while (getcwd(wd, talloc_get_size(wd)) == NULL) {
+ if (errno != ERANGE) {
+ talloc_free(wd);
+ return NULL;
+ }
+ wd = talloc_realloc(talloc_ctx, wd, char, talloc_get_size(wd) * 2);
+ }
+ return wd;
+}
+
+bool mp_path_exists(const char *path)
+{
+ struct stat st;
+ return mp_stat(path, &st) == 0;
+}
+
+bool mp_path_isdir(const char *path)
+{
+ struct stat st;
+ return mp_stat(path, &st) == 0 && S_ISDIR(st.st_mode);
+}
+
+// Return false if it's considered a normal local filesystem path.
+bool mp_is_url(bstr path)
+{
+ int proto = bstr_find0(path, "://");
+ if (proto < 0)
+ return false;
+ // The protocol part must be alphanumeric, otherwise it's not an URL.
+ for (int i = 0; i < proto; i++) {
+ unsigned char c = path.start[i];
+ if (!(c >= 'a' && c <= 'z') && !(c >= 'A' && c <= 'Z') &&
+ !(c >= '0' && c <= '9') && c != '_')
+ return false;
+ }
+ return true;
+}
+
+void mp_mk_config_dir(char *subdir)
+{
+ void *tmp = talloc_new(NULL);
+ char *confdir = talloc_steal(tmp, mp_find_user_config_file(""));
+ if (confdir) {
+ if (subdir)
+ confdir = mp_path_join(tmp, bstr0(confdir), bstr0(subdir));
+ mkdir(confdir, 0777);
+ }
+ talloc_free(tmp);
+}