Some work on the db representation

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

1 files changed, 33 insertions, 0 deletions

diff --git a/src/libs6rcd/s6rc_service_resolve.c b/src/libs6rcd/s6rc_service_resolve.c
new file mode 100644
index 0000000..a786542
--- /dev/null
+++ b/src/libs6rcd/s6rc_service_resolve.c
@@ -0,0 +1,33 @@
+/* ISC license. */
+
+#include <string.h>
+#include <errno.h>
+
+#include <skalibs/uint32.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/cdb.h>
+
+#include "db.h"
+
+int s6rc_service_resolve (cdb_t *c, s6rc_sid_t *id, char const *s)
+{
+  size_t len = strlen(s) ;
+  char const *param = 0 ;
+  char pack[5] ;
+  int r = cdb_find(c, s, len) ;
+  if (r < 0) return r ;
+  if (!r)
+  {
+    size_t at = byte_chr(s, len, '@') ;
+    if (at == len) return 0 ;
+    if (at == len - 1) return (errno = EINVAL, -1) ;
+    r = cdb_find(c, s, at + 1) ;
+    if (r <= 0) return r ;
+    param = s + at + 1 ;
+  }
+  if (cdb_read(c, pack, 5, cdb_datapos(c)) < 0) return -1 ;
+  id->stype = pack[0] ;
+  uint32_unpack_big(pack + 1, &id->i) ;
+  id->param = param ;
+  return 1 ;
+}