Added fdholder, beta. Documentation will come next.

1 files changed, 63 insertions, 0 deletions

diff --git a/src/fdholder/s6-fdholder-store.c b/src/fdholder/s6-fdholder-store.c
new file mode 100644
index 0000000..76faa88
--- /dev/null
+++ b/src/fdholder/s6-fdholder-store.c
@@ -0,0 +1,63 @@
+/* ISC license. */
+
+#include <skalibs/uint.h>
+#include <skalibs/sgetopt.h>
+#include <skalibs/strerr2.h>
+#include <skalibs/djbunix.h>
+#include <s6/config.h>
+
+#define USAGE "s6-fdholder-store [ -d fd ] [ -t timeout ] [ -T fdtimeout ] socket id"
+#define dieusage() strerr_dieusage(100, USAGE)
+
+int main (int argc, char const *const *argv, char const *const *envp)
+{
+  char const *newargv[12] ;
+  unsigned int timeout = 0, limit = 0 ;
+  unsigned int m = 0 ;
+  char fmtt[UINT_FMT] ;
+  char fmtl[UINT_FMT] ;
+  PROG = "s6-fdholder-store" ;
+  {
+    unsigned int fd = 0 ;
+    subgetopt_t l = SUBGETOPT_ZERO ;
+    for (;;)
+    {
+      register int opt = subgetopt_r(argc, argv, "d:t:T:", &l) ;
+      if (opt == -1) break ;
+      switch (opt)
+      {
+        case 'd' : if (!uint0_scan(l.arg, &fd)) dieusage() ; break ;
+        case 't' : if (!uint0_scan(l.arg, &timeout)) dieusage() ; break ;
+        case 'T' : if (!uint0_scan(l.arg, &limit)) dieusage() ; break ;
+        default : dieusage() ;
+      }
+    }
+    argc -= l.ind ; argv += l.ind ;
+    if (argc < 2) dieusage() ;
+    if (fd && fd_move(0, fd) < 0)
+      strerr_diefu1sys(111, "move file descriptor") ;
+  }
+
+  newargv[m++] = S6_BINPREFIX "s6-ipcclient" ;
+  newargv[m++] = "-l0" ;
+  newargv[m++] = "--" ;
+  newargv[m++] = argv[0] ;
+  newargv[m++] = S6_BINPREFIX "s6-fdholder-storec" ;
+  if (timeout)
+  {
+    fmtt[uint_fmt(fmtt, timeout)] = 0 ;
+    newargv[m++] = "-t" ;
+    newargv[m++] = fmtt ;
+  }
+  if (limit)
+  {
+    fmtl[uint_fmt(fmtl, limit)] = 0 ;
+    newargv[m++] = "-T" ;
+    newargv[m++] = fmtl ;
+  }
+  newargv[m++] = "--" ;
+  newargv[m++] = argv[1] ;
+  newargv[m++] = 0 ;
+  pathexec_run(newargv[0], newargv, envp) ;
+  strerr_dieexec(111, newargv[0]) ;
+}