Added fdholder, beta. Documentation will come next.

1 files changed, 62 insertions, 0 deletions

diff --git a/src/fdholder/s6-fdholder-retrieve.c b/src/fdholder/s6-fdholder-retrieve.c
new file mode 100644
index 0000000..3622580
--- /dev/null
+++ b/src/fdholder/s6-fdholder-retrieve.c
@@ -0,0 +1,62 @@
+/* ISC license. */
+
+#include <skalibs/uint.h>
+#include <skalibs/sgetopt.h>
+#include <skalibs/strerr2.h>
+#include <skalibs/djbunix.h>
+#include <execline/config.h>
+#include <s6/config.h>
+
+#define USAGE "s6-fdholder-retrieve [ -D ] [ -t timeout ] socket id prog..."
+#define dieusage() strerr_dieusage(100, USAGE)
+
+int main (int argc, char const *const *argv, char const *const *envp)
+{
+  unsigned int timeout = 0 ;
+  int dodelete = 0 ;
+  PROG = "s6-fdholder-retrieve" ;
+  {
+    subgetopt_t l = SUBGETOPT_ZERO ;
+    for (;;)
+    {
+      register int opt = subgetopt_r(argc, argv, "Dt:", &l) ;
+      if (opt == -1) break ;
+      switch (opt)
+      {
+        case 'D' : dodelete = 1 ; break ;
+        case 't' : if (!uint0_scan(l.arg, &timeout)) dieusage() ; break ;
+        default : dieusage() ;
+      }
+    }
+    argc -= l.ind ; argv += l.ind ;
+    if (argc < 3) dieusage() ;
+  }
+
+  {
+    char const *newargv[13 + argc] ;
+    unsigned int m = 0 ;
+    char fmtt[UINT_FMT] ;
+    newargv[m++] = S6_BINPREFIX "s6-ipcclient" ;
+    newargv[m++] = "-l0" ;
+    newargv[m++] = "--" ;
+    newargv[m++] = *argv++ ;
+    newargv[m++] = S6_BINPREFIX "s6-fdholder-retrievec" ;
+    if (dodelete) newargv[m++] = "-D" ;
+    if (timeout)
+    {
+      fmtt[uint_fmt(fmtt, timeout)] = 0 ;
+      newargv[m++] = "-t" ;
+      newargv[m++] = fmtt ;
+    }
+    newargv[m++] = "--" ;
+    newargv[m++] = *argv++ ;
+    newargv[m++] = EXECLINE_EXTBINPREFIX "fdclose" ;
+    newargv[m++] = "6" ;
+    newargv[m++] = EXECLINE_EXTBINPREFIX "fdclose" ;
+    newargv[m++] = "7" ;
+    while (*argv) newargv[m++] = *argv++ ;
+    newargv[m++] = 0 ;
+    pathexec_run(newargv[0], newargv, envp) ;
+    strerr_dieexec(111, newargv[0]) ;
+  }
+}