1 files changed, 14 insertions, 0 deletions
diff --git a/src/libstddjb/error_isalready.c b/src/libstddjb/error_isalready.c
new file mode 100644
index 0000000..db63932
--- /dev/null
+++ b/src/libstddjb/error_isalready.c
@@ -0,0 +1,14 @@
+/* ISC license. */
+
+#include <skalibs/bsdsnowflake.h>
+#include <errno.h>
+#include <skalibs/error.h>
+
+int error_isalready (int e)
+{
+  return e == EALREADY || e == EINPROGRESS
+#ifdef SKALIBS_BSD_SUCKS
+   || e == ADDRINUSE
+#endif
+  ;
+}