1 files changed, 22 insertions, 0 deletions
diff --git a/misc/strerror.c b/misc/strerror.c
new file mode 100644
index 000000000..acb81618c
--- /dev/null
+++ b/misc/strerror.c
@@ -0,0 +1,22 @@
+#include<stdlib.h>
+#include<errno.h>
+#include<stdio.h>
+
+extern int sys_nerr;
+extern char *sys_errlist[];
+static char buf[64];
+char * strerror(int errnum) 
+
+{
+  if (errnum < 0 || errnum > sys_nerr)
+    {
+      static char fmt[] = "Unknown error %d";
+      size_t len = (size_t) sprintf (buf, fmt, errnum);
+      if (len < (size_t) sizeof(fmt) - 2)
+        return NULL;
+      buf[len - 1] = '\0';
+      return buf;
+    }
+
+  return (char *) sys_errlist[errnum];
+}