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Diffstat (limited to 'src/conn-tools/s6-tcpserver6-socketbinder.c')
-rw-r--r--src/conn-tools/s6-tcpserver6-socketbinder.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/src/conn-tools/s6-tcpserver6-socketbinder.c b/src/conn-tools/s6-tcpserver6-socketbinder.c
new file mode 100644
index 0000000..6f020b2
--- /dev/null
+++ b/src/conn-tools/s6-tcpserver6-socketbinder.c
@@ -0,0 +1,49 @@
+/* ISC license. */
+
+#include <unistd.h>
+#include <skalibs/uint16.h>
+#include <skalibs/uint.h>
+#include <skalibs/sgetopt.h>
+#include <skalibs/fmtscan.h>
+#include <skalibs/strerr2.h>
+#include <skalibs/djbunix.h>
+#include <skalibs/socket.h>
+
+#define USAGE "s6-tcpserver6-socketbinder [ -d | -D ] [ -b backlog ] ip6 port prog..."
+#define dieusage() strerr_dieusage(100, USAGE)
+
+int main (int argc, char const *const *argv, char const *const *envp)
+{
+ unsigned int backlog = 20 ;
+ int flagreuse = 1 ;
+ char ip[16] ;
+ uint16 port ;
+ PROG = "s6-tcpserver6-socketbinder" ;
+ {
+ subgetopt_t l = SUBGETOPT_ZERO ;
+ for (;;)
+ {
+ register int opt = subgetopt_r(argc, argv, "Ddb:", &l) ;
+ if (opt == -1) break ;
+ switch (opt)
+ {
+ case 'D' : flagreuse = 0 ; break ;
+ case 'd' : flagreuse = 1 ; break ;
+ case 'b' : if (!uint0_scan(l.arg, &backlog)) dieusage() ; break ;
+ default : dieusage() ;
+ }
+ }
+ argc -= l.ind ; argv += l.ind ;
+ }
+ if (argc < 3) dieusage() ;
+ if (!ip6_scan(argv[0], ip) || !uint160_scan(argv[1], &port)) dieusage() ;
+ close(0) ;
+ if (socket_tcp6()) strerr_diefu1sys(111, "create socket") ;
+ if ((flagreuse ? socket_bind6_reuse(0, ip, port) : socket_bind6(0, ip, port)) < 0)
+ strerr_diefu5sys(111, "bind to ", argv[0], ":", argv[1], " ") ;
+ if (socket_listen(0, backlog) < 0)
+ strerr_diefu5sys(111, "listen to ", argv[0], ":", argv[1], " ") ;
+
+ pathexec_run(argv[2], argv + 2, envp) ;
+ strerr_dieexec(111, argv[2]) ;
+}