Add some functions and add functions with _failed suffix

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

1 files changed, 37 insertions, 0 deletions

diff --git a/sockatmark.c b/sockatmark.c
new file mode 100644
index 0000000..aa5a20e
--- /dev/null
+++ b/sockatmark.c
@@ -0,0 +1,37 @@
+/* See LICENSE file for copyright and license details. */
+#include "internal.h"
+
+
+void
+liberror_sockatmark_failed(int fd, const char *fname)
+{
+	const char *desc;
+	switch (errno) {
+	case EBADF:
+		if (fd < 0)
+			desc = "Negative file descriptor number specified";
+		else
+			desc = "Unassigned file descriptor number specified";
+		break;
+	case ENOTSOCK:
+	case ENOTTY:
+	case EINVAL:
+		desc = "Operation not supported by specified file";
+		break;
+	default:
+		desc = "";
+		break;
+	}
+	liberror_libc_set_error_one_file(desc, "sockatmark", "Socket file", fd, fname);
+}
+
+
+int
+liberror_sockatmark(int fd, const char *fname)
+{
+	if (!sockatmark(fd))
+		return 0;
+	liberror_save_backtrace(NULL);
+	liberror_sockatmark_failed(fd, fname);
+	return -1;
+}