1 files changed, 50 insertions, 0 deletions
diff --git a/error.c b/error.c
new file mode 100644
index 0000000..e88ab4f
--- /dev/null
+++ b/error.c
@@ -0,0 +1,50 @@
+#include <string.h>
+#include "fhp/fhp.h"
+
+//
+// error functions
+//
+
+static const char *
+fhp_errors[] = {
+  "OK",
+  "callback error",
+  "bad state",
+  "invalid character",
+  "invalid character in HTTP method",
+  "invalid character in HTTP URL",
+  "invalid percent-encoded character in HTTP URL",
+  "invalid character in HTTP version",
+  "invalid character after carriage return",
+  "invalid character in HTTP header name",
+  "invalid error code",
+  "buffer too small",
+  "invalid body type",
+  "too many transfer encodings",
+  "invalid character in transfer encoding name",
+  "invalid character in transfer encoding",
+  "bad transfer encoding state",
+  "transfer encoding parser already done",
+};
+
+fhp_err_t
+fhp_strerror(
+  fhp_err_t err,
+  char * const buf,
+  size_t len
+) {
+  // check error code
+  if (err >= FHP_ERR_LAST)
+    return FHP_ERR_INVALID_ERROR;
+
+  // check buffer size
+  size_t err_len = strlen(fhp_errors[err]) + 1;
+  if (len < err_len)
+    return FHP_ERR_BUFFER_TOO_SMALL;
+
+  // copy string
+  memcpy(buf, fhp_errors[err], err_len);
+
+  // return success
+  return FHP_OK;
+}