1 files changed, 67 insertions, 0 deletions
diff --git a/src/tipideed/trace.c b/src/tipideed/trace.c
new file mode 100644
index 0000000..4761ea5
--- /dev/null
+++ b/src/tipideed/trace.c
@@ -0,0 +1,67 @@
+/* ISC license. */
+
+#include <string.h>
+
+#include <skalibs/types.h>
+#include <skalibs/buffer.h>
+#include <skalibs/strerr.h>
+#include <skalibs/tai.h>
+#include <skalibs/unix-timed.h>
+
+#include <tipidee/method.h>
+#include <tipidee/response.h>
+#include "tipideed-internal.h"
+
+int respond_trace (char const *buf, tipidee_rql const *rql, tipidee_headers const *hdr)
+{
+  tain deadline ;
+  size_t cl = 0 ;
+  char fmt[SIZE_FMT] ;
+  tipidee_response_status_line(buffer_1, rql, "200 OK") ;
+  tipidee_response_header_common_put_g(buffer_1, 0) ;
+  buffer_putsnoflush(buffer_1, "Content-Type: message/http\r\nContent-Length: ") ;
+  cl += strlen(tipidee_method_tostr(rql->m)) + 1;
+  if (rql->uri.host) cl += 7 + rql->uri.https + strlen(rql->uri.host) ;
+  cl += strlen(rql->uri.path) + (rql->uri.query ? 1 + strlen(rql->uri.query) : 0) ;
+  cl += 6 + uint_fmt(0, rql->http_major) + 1 + uint_fmt(0, rql->http_minor) + 2 ;
+  for (size_t i = 0 ; i < hdr->n ; i++)
+    cl += strlen(buf + hdr->list[i].left) + 2 + strlen(buf + hdr->list[i].right) + 2 ;
+  cl += 2 ;
+  buffer_putnoflush(buffer_1, fmt, size_fmt(fmt, cl)) ;
+  buffer_putsnoflush(buffer_1, "\r\n\r\n") ;
+
+  buffer_putsnoflush(buffer_1, tipidee_method_tostr(rql->m)) ;
+  buffer_putnoflush(buffer_1, " ", 1) ;
+  if (rql->uri.host)
+  {
+    buffer_putsnoflush(buffer_1, rql->uri.https ? "https://" : "http://") ;
+    buffer_putsnoflush(buffer_1, rql->uri.host) ;
+  }
+  buffer_putsnoflush(buffer_1, rql->uri.path) ;
+  if (rql->uri.query)
+  {
+    buffer_putnoflush(buffer_1, "?", 1) ;
+    buffer_putsnoflush(buffer_1, rql->uri.query) ;
+  }
+  buffer_putsnoflush(buffer_1, " HTTP/") ;
+  buffer_putnoflush(buffer_1, fmt, uint_fmt(fmt, rql->http_major)) ;
+  buffer_putnoflush(buffer_1, ".", 1) ;
+  buffer_putnoflush(buffer_1, fmt, uint_fmt(fmt, rql->http_minor)) ;
+  buffer_putsnoflush(buffer_1, "\r\n") ;
+  for (size_t i = 0 ; i < hdr->n ; i++)
+  {
+    size_t len = strlen(buf + hdr->list[i].left) ;
+    tain_add_g(&deadline, &g.writetto) ;
+    if (buffer_timed_put_g(buffer_1, buf + hdr->list[i].left, len, &deadline) < len) goto err ;
+    if (buffer_timed_put_g(buffer_1, ": ", 2, &deadline) < 2) goto err ;
+    len = strlen(buf + hdr->list[i].right) ;
+    if (buffer_timed_put_g(buffer_1, buf + hdr->list[i].right, len, &deadline) < len) goto err ;
+    if (buffer_timed_put_g(buffer_1, "\r\n", 2, &deadline) < 2) goto err ;
+  }
+  if (buffer_timed_put_g(buffer_1, "\r\n", 2, &deadline) < 2
+   || !buffer_timed_flush_g(buffer_1, &deadline)) goto err ;
+  return 0 ;
+
+ err:
+  strerr_diefu1sys(111, "write to stdout") ;
+}