1 files changed, 117 insertions, 0 deletions
diff --git a/utils/file.c b/utils/file.c
new file mode 100644
index 000000000..7b0a4677a
--- /dev/null
+++ b/utils/file.c
@@ -0,0 +1,117 @@
+/*
+ * Copyright 2014 vincent Sanders <vince@netsurf-browser.org>
+ *
+ * This file is part of NetSurf, http://www.netsurf-browser.org/
+ *
+ * NetSurf 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.
+ *
+ * NetSurf 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, see <http://www.gnu.org/licenses/>.
+ */
+
+/** \file
+ * Table operations for files with posix compliant path separator.
+ */
+
+#include <stdarg.h>
+#include <string.h>
+
+#include "desktop/gui_factory.h"
+#include "utils/utils.h"
+
+#include "utils/file.h"
+
+/**
+ * Generate a posix path from one or more component elemnts.
+ *
+ * If a string is allocated it must be freed by the caller.
+ *
+ * @param[in,out] str pointer to string pointer if this is NULL enough
+ *                    storage will be allocated for the complete path.
+ * @param[in,out] size The size of the space available if \a str not
+ *                     NULL on input and if not NULL set to the total
+ *                     output length on output.
+ * @param[in] nemb The number of elements.
+ * @param[in] ... The elements of the path as string pointers.
+ * @return NSERROR_OK and the complete path is written to str
+ *         or error code on faliure.
+ */
+static nserror posix_mkpath(char **str, size_t *size, size_t nelm, va_list ap)
+{
+	return vsnstrjoin(str, size, '/', nelm, ap);
+}
+
+/**
+ * Get the basename of a file using posix path handling.
+ *
+ * This gets the last element of a path and returns it.
+ *
+ * @param[in] path The path to extract the name from.
+ * @param[in,out] str Pointer to string pointer if this is NULL enough
+ *                    storage will be allocated for the path element.
+ * @param[in,out] size The size of the space available if \a
+ *                     str not NULL on input and set to the total
+ *                     output length on output.
+ * @return NSERROR_OK and the complete path is written to str
+ *         or error code on faliure.
+ */
+static nserror posix_basename(const char *path, char **str, size_t *size)
+{
+	const char *leafname;
+	char *fname;
+
+	if (path == NULL) {
+		return NSERROR_BAD_PARAMETER;
+	}
+
+	leafname = strrchr(path, '/');
+	if (!leafname) {
+		leafname = path;
+	} else {
+		leafname += 1;
+	}
+
+	fname = strdup(leafname);
+	if (fname == NULL) {
+		return NSERROR_NOMEM;
+	}
+
+	*str = fname;
+	if (size != NULL) {
+		*size = strlen(fname);
+	}
+	return NSERROR_OK;
+}
+
+/* exported interface documented in utils/file.h */
+nserror netsurf_mkpath(char **str, size_t *size, size_t nelm, ...)
+{
+	va_list ap;
+	nserror ret;
+
+	va_start(ap, nelm);
+	if (guit != NULL) {
+		ret = guit->file->mkpath(str, size, nelm, ap);
+	} else {
+		/* default to posix */
+		ret = vsnstrjoin(str, size, '/', nelm, ap);
+	}
+	va_end(ap);
+
+	return ret;
+}
+
+/* default to using the posix file handling */
+static struct gui_file_table file_table = {
+	.mkpath = posix_mkpath,
+	.basename = posix_basename,
+};
+
+struct gui_file_table *default_file_table = &file_table;