From 49cb17940e403431566dc7b5a312624f14eb25d0 Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Fri, 23 Jan 2015 23:47:14 +0000
Subject:  Added fdholder, beta. Documentation will come next.

---
 src/fdholder/s6-fdholder-setdumpc.c | 76 +++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 src/fdholder/s6-fdholder-setdumpc.c

(limited to 'src/fdholder/s6-fdholder-setdumpc.c')

diff --git a/src/fdholder/s6-fdholder-setdumpc.c b/src/fdholder/s6-fdholder-setdumpc.c
new file mode 100644
index 0000000..8a74dba
--- /dev/null
+++ b/src/fdholder/s6-fdholder-setdumpc.c
@@ -0,0 +1,76 @@
+/* ISC license. */
+
+#include <skalibs/uint.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/env.h>
+#include <skalibs/strerr2.h>
+#include <skalibs/sgetopt.h>
+#include <skalibs/tai.h>
+#include <s6/s6-fdholder.h>
+
+#define USAGE "s6-fdholder-setdumpc [ -t timeout ]"
+#define dieusage() strerr_dieusage(100, USAGE)
+
+int main (int argc, char const *const *argv, char const *const *envp)
+{
+  s6_fdholder_t a = S6_FDHOLDER_ZERO ;
+  tain_t deadline ;
+  unsigned int dumplen ;
+  char const *x ;
+  PROG = "s6-fdholder-setdumpc" ;
+  {
+    unsigned int t = 0 ;
+    subgetopt_t l = SUBGETOPT_ZERO ;
+    for (;;)
+    {
+      register int opt = subgetopt_r(argc, argv, "t:", &l) ;
+      if (opt == -1) break ;
+      switch (opt)
+      {
+        case 't' : if (!uint0_scan(l.arg, &t)) dieusage() ; break ;
+        default : dieusage() ;
+      }
+    }
+    argc -= l.ind ; argv += l.ind ;
+    if (t) tain_from_millisecs(&deadline, t) ;
+    else deadline = tain_infinite_relative ;
+  }
+
+  s6_fdholder_init(&a, 6) ;
+  x = env_get2(envp, "S6_FD#") ;
+  if (!x) strerr_dienotset(100, "S6_FD#") ;
+  if (!uint0_scan(x, &dumplen)) strerr_dieinvalid(100, "S6_FD#") ;
+  if (dumplen)
+  {
+    unsigned int i = 0 ;
+    s6_fdholder_fd_t dump[dumplen] ;
+    char s[11 + UINT_FMT] ;
+    tain_now_g() ;
+    tain_add_g(&deadline, &deadline) ;
+    for (; i < dumplen ; i++)
+    {
+      unsigned int fd, len ;
+      byte_copy(s, 6, "S6_FD_") ;
+      s[6 + uint_fmt(s+6, i)] = 0 ;
+      x = env_get2(envp, s) ;
+      if (!x) strerr_dienotset(100, s) ;
+      if (!uint0_scan(x, &fd)) strerr_dieinvalid(100, s) ;
+      dump[i].fd = fd ;
+      byte_copy(s, 8, "S6_FDID_") ;
+      s[8 + uint_fmt(s+8, i)] = 0 ;
+      x = env_get2(envp, s) ;
+      if (!x) strerr_dienotset(100, s) ;
+      len = str_len(x) ;
+      if (!len || len > S6_FDHOLDER_ID_SIZE) strerr_dieinvalid(100, s) ;
+      byte_copy(dump[i].id, len+1, x) ;
+      byte_copy(s, 11, "S6_FDLIMIT_") ;
+      s[11 + uint_fmt(s+11, i)] = 0 ;
+      x = env_get2(envp, s) ;
+      if (!x) tain_add_g(&dump[i].limit, &tain_infinite_relative) ;
+      else if (!timestamp_scan(x, &dump[i].limit)) strerr_dieinvalid(100, s) ;
+    }
+    if (!s6_fdholder_setdump_g(&a, dump, dumplen, &deadline))
+      strerr_diefu1sys(111, "set dump") ;
+  }
+  return 0 ;
+}
-- 
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