From fff4ecc82f2bcfa7427596e7ad9c3769fcab040b Mon Sep 17 00:00:00 2001
From: Perberos <perberos@gmail.com>
Date: Fri, 4 Nov 2011 22:16:15 -0300
Subject: first commit

---
 savers/xdg-user-dir-lookup.c | 168 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 168 insertions(+)
 create mode 100644 savers/xdg-user-dir-lookup.c

(limited to 'savers/xdg-user-dir-lookup.c')

diff --git a/savers/xdg-user-dir-lookup.c b/savers/xdg-user-dir-lookup.c
new file mode 100644
index 0000000..c9e8fe2
--- /dev/null
+++ b/savers/xdg-user-dir-lookup.c
@@ -0,0 +1,168 @@
+/*
+  This file is not licenced under the GPL like the rest of the code.
+  Its is under the MIT license, to encourage reuse by cut-and-paste.
+
+  Copyright (c) 2007 Red Hat, inc
+
+  Permission is hereby granted, free of charge, to any person
+  obtaining a copy of this software and associated documentation files
+  (the "Software"), to deal in the Software without restriction,
+  including without limitation the rights to use, copy, modify, merge,
+  publish, distribute, sublicense, and/or sell copies of the Software,
+  and to permit persons to whom the Software is furnished to do so,
+  subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be
+  included in all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+  BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+  ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+  SOFTWARE.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "xdg-user-dir-lookup.h"
+
+char *
+xdg_user_dir_lookup (const char *type)
+{
+	FILE *file;
+	char *home_dir, *config_home, *config_file;
+	char buffer[512];
+	char *user_dir;
+	char *p, *d;
+	int len;
+	int relative;
+
+	home_dir = getenv ("HOME");
+
+	if (home_dir == NULL)
+		return strdup ("/tmp");
+
+	config_home = getenv ("XDG_CONFIG_HOME");
+	if (config_home == NULL || config_home[0] == 0)
+	{
+		config_file = malloc (strlen (home_dir) + strlen ("/.config/user-dirs.dirs") + 1);
+		strcpy (config_file, home_dir);
+		strcat (config_file, "/.config/user-dirs.dirs");
+	}
+	else
+	{
+		config_file = malloc (strlen (config_home) + strlen ("/user-dirs.dirs") + 1);
+		strcpy (config_file, config_home);
+		strcat (config_file, "/user-dirs.dirs");
+	}
+
+	file = fopen (config_file, "r");
+	free (config_file);
+	if (file == NULL)
+		goto error;
+
+	user_dir = NULL;
+	while (fgets (buffer, sizeof (buffer), file))
+	{
+		/* Remove newline at end */
+		len = strlen (buffer);
+		if (len > 0 && buffer[len-1] == '\n')
+			buffer[len-1] = 0;
+
+		p = buffer;
+		while (*p == ' ' || *p == '\t')
+			p++;
+
+		if (strncmp (p, "XDG_", 4) != 0)
+			continue;
+		p += 4;
+		if (strncmp (p, type, strlen (type)) != 0)
+			continue;
+		p += strlen (type);
+		if (strncmp (p, "_DIR", 4) != 0)
+			continue;
+		p += 4;
+
+		while (*p == ' ' || *p == '\t')
+			p++;
+
+		if (*p != '=')
+			continue;
+		p++;
+
+		while (*p == ' ' || *p == '\t')
+			p++;
+
+		if (*p != '"')
+			continue;
+		p++;
+
+		relative = 0;
+		if (strncmp (p, "$HOME/", 6) == 0)
+		{
+			p += 6;
+			relative = 1;
+		}
+		else if (*p != '/')
+			continue;
+
+		if (relative)
+		{
+			user_dir = malloc (strlen (home_dir) + 1 + strlen (p) + 1);
+			strcpy (user_dir, home_dir);
+			strcat (user_dir, "/");
+		}
+		else
+		{
+			user_dir = malloc (strlen (p) + 1);
+			*user_dir = 0;
+		}
+
+		d = user_dir + strlen (user_dir);
+		while (*p && *p != '"')
+		{
+			if ((*p == '\\') && (*(p+1) != 0))
+				p++;
+			*d++ = *p++;
+		}
+		*d = 0;
+	}
+	fclose (file);
+
+	if (user_dir)
+		return user_dir;
+
+error:
+	/* Special case desktop for historical compatibility */
+	if (strcmp (type, "DESKTOP") == 0)
+	{
+		user_dir = malloc (strlen (home_dir) + strlen ("/Desktop") + 1);
+		strcpy (user_dir, home_dir);
+		strcat (user_dir, "/Desktop");
+		return user_dir;
+	}
+	else
+		return strdup (home_dir);
+}
+
+#ifdef STANDALONE
+
+int
+main (int argc, char *argv[])
+{
+	if (argc != 2)
+	{
+		fprintf (stderr, "Usage %s <dir-type>\n", argv[0]);
+		exit (1);
+	}
+
+	printf ("%s\n", xdg_user_dir_lookup (argv[1]));
+	return 0;
+}
+
+#endif
-- 
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