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Diffstat (limited to 'src/conn-tools/s6-ipcclient.c')
-rw-r--r--src/conn-tools/s6-ipcclient.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/src/conn-tools/s6-ipcclient.c b/src/conn-tools/s6-ipcclient.c
new file mode 100644
index 0000000..61864bc
--- /dev/null
+++ b/src/conn-tools/s6-ipcclient.c
@@ -0,0 +1,66 @@
+/* ISC license. */
+
+#include <skalibs/sgetopt.h>
+#include <skalibs/strerr2.h>
+#include <skalibs/env.h>
+#include <skalibs/djbunix.h>
+#include <skalibs/webipc.h>
+
+#define USAGE "s6-ipcclient [ -q | -Q | -v ] [ -p bindpath ] [ -l localname ] path prog..."
+
+int main (int argc, char const *const *argv, char const *const *envp)
+{
+ char const *bindpath = 0 ;
+ char const *localname = 0 ;
+ unsigned int verbosity = 1 ;
+ PROG = "s6-ipcclient" ;
+ {
+ subgetopt_t l = SUBGETOPT_ZERO ;
+ for (;;)
+ {
+ register int opt = subgetopt_r(argc, argv, "qQvp:l:", &l) ;
+ if (opt == -1) break ;
+ switch (opt)
+ {
+ case 'q' : if (verbosity) verbosity-- ; break ;
+ case 'Q' : verbosity = 1 ; break ;
+ case 'v' : verbosity++ ; break ;
+ case 'p' : bindpath = l.arg ; break ;
+ case 'l' : localname = l.arg ; break ;
+ default : strerr_dieusage(100, USAGE) ;
+ }
+ }
+ argc -= l.ind ; argv += l.ind ;
+ }
+ if (argc < 2) strerr_dieusage(100, USAGE) ;
+ {
+ char modif[24 + IPCPATH_MAX] = "PROTO=IPC\0IPCLOCALPATH=" ;
+ unsigned int i = 23 ;
+ int s = ipc_stream() ;
+ if (s < 0) strerr_diefu1sys(111, "create socket") ;
+ if (bindpath && (ipc_bind(s, bindpath) == -1))
+ strerr_diefu2sys(111, "bind socket to ", bindpath) ;
+ if (!ipc_connect(s, argv[0]))
+ strerr_diefu2sys(111, "connect to ", argv[0]) ;
+ if (verbosity >= 2) strerr_warn3x(PROG, ": connected to ", argv[0]) ;
+ if (localname)
+ {
+ register unsigned int n = str_len(localname) ;
+ if (n > IPCPATH_MAX) n = IPCPATH_MAX ;
+ byte_copy(modif + i, n, localname) ;
+ i += n ; modif[i++] = 0 ;
+ }
+ else
+ {
+ int dummy ;
+ if (ipc_local(s, modif + i, IPCPATH_MAX, &dummy) < 0) modif[--i] = 0 ;
+ else i += str_len(modif + i) + 1 ;
+ }
+ if (fd_move(6, s) < 0)
+ strerr_diefu2sys(111, "set up fd ", "6") ;
+ if (fd_copy(7, 6) < 0)
+ strerr_diefu2sys(111, "set up fd ", "7") ;
+ pathexec_r(argv+1, envp, env_len(envp), modif, i) ;
+ }
+ strerr_dieexec(111, argv[1]) ;
+}