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authorLaurent Bercot <ska-skaware@skarnet.org>2020-11-21 11:58:44 +0000
committerLaurent Bercot <ska-skaware@skarnet.org>2020-11-21 11:58:44 +0000
commitfb76faf56aca9b79648d776896a4a4fae7c978cf (patch)
tree77aed5d588534a742b7795fa9f8406469e067414 /src/tls/s6-ucspitlsd.c
parent7f2cd05720e721c7e8131d4a4762d97a29fbf7b4 (diff)
downloads6-networking-fb76faf56aca9b79648d776896a4a4fae7c978cf.tar.xz
Move all tls stuff into its own subdir
Diffstat (limited to 'src/tls/s6-ucspitlsd.c')
-rw-r--r--src/tls/s6-ucspitlsd.c88
1 files changed, 88 insertions, 0 deletions
diff --git a/src/tls/s6-ucspitlsd.c b/src/tls/s6-ucspitlsd.c
new file mode 100644
index 0000000..4bfa253
--- /dev/null
+++ b/src/tls/s6-ucspitlsd.c
@@ -0,0 +1,88 @@
+/* ISC license. */
+
+#include <stdint.h>
+#include <unistd.h>
+
+#include <skalibs/gccattributes.h>
+#include <skalibs/types.h>
+#include <skalibs/sgetopt.h>
+#include <skalibs/strerr2.h>
+#include <skalibs/djbunix.h>
+#include <skalibs/webipc.h>
+
+#include <s6-networking/config.h>
+#include "s6tls-internal.h"
+
+#define USAGE "s6-ucspitlsd [ -S | -s ] [ -Y | -y ] [ -v verbosity ] [ -K timeout ] [ -Z | -z ] prog..."
+#define dieusage() strerr_dieusage(100, USAGE)
+
+static inline void child (int [4][2], uint32_t, unsigned int, unsigned int) gccattr_noreturn ;
+static inline void child (int p[4][2], uint32_t options, unsigned int verbosity, unsigned int kimeout)
+{
+ int fds[3] = { p[0][0], p[1][1], p[2][1] } ;
+ ssize_t r ;
+ char c ;
+ PROG = "s6-ucspitlsd" ;
+ close(p[2][0]) ;
+ close(p[0][1]) ;
+ close(p[1][0]) ;
+ r = read(p[2][1], &c, 1) ;
+ if (r < 0) strerr_diefu1sys(111, "read from control socket") ;
+ if (!r) _exit(0) ;
+ switch (c)
+ {
+ case 'y' :
+ close(p[2][1]) ;
+ p[2][1] = 0 ; /* we know 0 is open so it's a correct invalid value */
+ case 'Y' :
+ fd_shutdown(p[2][1], 0) ;
+ break ;
+ default :
+ strerr_dief1x(100, "unrecognized command on control socket") ;
+ }
+ s6tls_exec_tlsdio(fds, options, verbosity, kimeout) ;
+}
+
+int main (int argc, char const *const *argv, char const *const *envp)
+{
+ unsigned int verbosity = 1 ;
+ unsigned int kimeout = 0 ;
+ int p[4][2] = { [3] = { 0, 1 } } ;
+ uint32_t coptions = 0 ;
+ uint32_t poptions = 1 ;
+
+ PROG = "s6-ucspitlsd (parent)" ;
+ {
+ subgetopt_t l = SUBGETOPT_ZERO ;
+ for (;;)
+ {
+ int opt = subgetopt_r(argc, argv, "SsYyv:K:Zz", &l) ;
+ if (opt == -1) break ;
+ switch (opt)
+ {
+ case 'S' : coptions |= 4 ; break ;
+ case 's' : coptions &= ~4 ; break ;
+ case 'Y' : coptions |= 1 ; coptions &= ~2 ; break ;
+ case 'y' : coptions |= 3 ; break ;
+ case 'v' : if (!uint0_scan(l.arg, &verbosity)) dieusage() ; break ;
+ case 'K' : if (!uint0_scan(l.arg, &kimeout)) dieusage() ; break ;
+ case 'Z' : poptions &= ~1 ; break ;
+ case 'z' : poptions |= 1 ; break ;
+ default : dieusage() ;
+ }
+ }
+ argc -= l.ind ; argv += l.ind ;
+ }
+ if (!argc) dieusage() ;
+
+ if (ipc_pair_b(p[2]) < 0) strerr_diefu1sys(111, "ipc_pair") ;
+ if (pipe(p[0]) < 0 || pipe(p[1]) < 0) strerr_diefu1sys(111, "pipe") ;
+
+ switch (fork())
+ {
+ case -1 : strerr_diefu1sys(111, "fork") ;
+ case 0 : child(p, coptions, verbosity, kimeout) ;
+ default : break ;
+ }
+ s6tls_ucspi_exec_app(argv, p, poptions) ;
+}