Add a lot of stuff, implement basic service_start

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

1 files changed, 38 insertions, 0 deletions

diff --git a/src/libs6f/s6f_confdir_open.c b/src/libs6f/s6f_confdir_open.c
new file mode 100644
index 0000000..8e0838f
--- /dev/null
+++ b/src/libs6f/s6f_confdir_open.c
@@ -0,0 +1,38 @@
+/* ISC license. */
+
+#include <skalibs/bsdsnowflake.h>
+
+#include <unistd.h>
+#include <errno.h>
+
+#include <skalibs/stat.h>
+#include <skalibs/strerr.h>
+#include <skalibs/djbunix.h>
+#include <skalibs/unix-transactional.h>
+
+#include "s6f.h"
+
+int s6f_confdir_open (char const *s, int flagcreate)
+{
+  struct stat st ;
+  int fd = open_read(s) ;
+  if (fd == -1)
+  {
+    if (errno != ENOENT || !flagcreate)
+      strerr_diefu3sys(111, "open ", s, " for reading") ;
+    if (flagcreate)
+    {
+      s6f_mkdirp(s, 02755) ;
+      fd = open_read(s) ;
+      if (fd == -1)
+        strerr_diefu3sys(111, "open ", s, " for reading") ;
+    }
+  }
+  if (fstat(fd, &st) == -1)
+    strerr_diefu2sys(111, "fstat ", s) ;
+  if (!S_ISDIR(st.st_mode))
+    strerr_dief2x(111, s, " is not a directory") ;
+  if (access_at(fd, ".", R_OK|W_OK, 1) == -1)
+    strerr_diefu2sys(111, "access ", s) ;
+  return fd ;
+}