Add some functions and add functions with _failed suffix

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 54 insertions, 0 deletions

diff --git a/chdir.c b/chdir.c
new file mode 100644
index 0000000..9ed27a4
--- /dev/null
+++ b/chdir.c
@@ -0,0 +1,54 @@
+/* See LICENSE file for copyright and license details. */
+#include "internal.h"
+
+
+void
+liberror_chdir_failed(const char *path)
+{
+	const char *desc;
+	switch (errno) {
+	case EFAULT:
+		if (!path)
+			desc = "Path parameter is NULL";
+		else
+			desc = "Path parameter is an invalid pointer";
+		break;
+	case EACCES:
+		desc = "Search permission is denied for any component of the path";
+		break;
+	case ELOOP:
+		desc = "A symbolic link chain in the path too long or circular";
+		break;
+	case ENAMETOOLONG:
+		desc = "The canonical path or intermediate result in pathname resolution is too long";
+		break;
+	case ENOENT:
+		if (!*path)
+			desc = "Path parameter is the empty string";
+		else
+			desc = "A component of path does not name an existing directory";
+		break;
+	case ENOTDIR:
+		desc = "A component of path is not a directory";
+		break;
+	case ENOMEM:
+		desc = "Insufficient kernel memory was available";
+		break;
+	case EIO:
+	default:
+		desc = "";
+		break;
+	}
+	liberror_libc_set_error_one_file(desc, "chdir", "Directory file", -1, path);
+}
+
+
+int
+liberror_chdir(const char *path)
+{
+	if (!chdir(path))
+		return 0;
+	liberror_save_backtrace(NULL);
+	liberror_chdir_failed(path);
+	return -1;
+}