Refactor s6-tls[cd] so they're ready to port to posix_spawn

Signed-off-by: Laurent Bercot <ska@appnovation.com>

1 files changed, 53 insertions, 0 deletions

diff --git a/src/tls/s6tls_prep_tlsdio.c b/src/tls/s6tls_prep_tlsdio.c
new file mode 100644
index 0000000..942425b
--- /dev/null
+++ b/src/tls/s6tls_prep_tlsdio.c
@@ -0,0 +1,53 @@
+/* ISC license. */
+
+#include <skalibs/types.h>
+
+#include <s6-networking/config.h>
+#include "s6tls-internal.h"
+
+void s6tls_prep_tlsdio (char const **argv, char *buf, int fdr, int fdw, int fdnotif, uint32_t options, unsigned int verbosity, unsigned int kimeout, unsigned int snilevel)
+{
+  size_t m = 0 ;
+  size_t n = 0 ;
+
+  argv[m++] = S6_NETWORKING_BINPREFIX "s6-tlsd-io" ;
+  if (verbosity != 1)
+  {
+    argv[m++] = "-v" ;
+    argv[m++] = buf + n ;
+    n += uint_fmt(buf + n, verbosity) ;
+    buf[n++] = 0 ;
+  }
+  if (fdnotif)
+  {
+    argv[m++] = "-d" ;
+    argv[m++] = buf + n ;
+    n += uint_fmt(buf + n, fdnotif) ;
+    buf[n++] = 0 ;
+  }
+  argv[m++] = options & 4 ? "-S" : "-s" ;
+  if (options & 1)
+    argv[m++] = options & 2 ? "-y" : "-Y" ;
+  if (kimeout)
+  {
+    argv[m++] = "-K" ;
+    argv[m++] = buf + n ;
+    n += uint_fmt(buf + n, kimeout) ;
+    buf[n++] = 0 ;
+  }
+  if (snilevel)
+  {
+    argv[m++] = "-k" ;
+    argv[m++] = buf + n ;
+    n += uint_fmt(buf + n, snilevel) ;
+    buf[n++] = 0 ;
+  }
+  argv[m++] = "--" ;
+  argv[m++] = buf + n ;
+  n += uint_fmt(buf + n, fdr) ;
+  buf[n++] = 0 ;
+  argv[m++] = buf + n ;
+  n += uint_fmt(buf + n, fdw) ;
+  buf[n++] = 0 ;
+  argv[m++] = 0 ;
+}