summaryrefslogtreecommitdiff
path: root/src/tls/s6-tlsc.c
diff options
context:
space:
mode:
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-tlsc.c
parent7f2cd05720e721c7e8131d4a4762d97a29fbf7b4 (diff)
downloads6-networking-fb76faf56aca9b79648d776896a4a4fae7c978cf.tar.xz
Move all tls stuff into its own subdir
Diffstat (limited to 'src/tls/s6-tlsc.c')
-rw-r--r--src/tls/s6-tlsc.c94
1 files changed, 94 insertions, 0 deletions
diff --git a/src/tls/s6-tlsc.c b/src/tls/s6-tlsc.c
new file mode 100644
index 0000000..5b2e7dc
--- /dev/null
+++ b/src/tls/s6-tlsc.c
@@ -0,0 +1,94 @@
+/* ISC license. */
+
+#include <stdint.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#include <skalibs/gccattributes.h>
+#include <skalibs/types.h>
+#include <skalibs/sgetopt.h>
+#include <skalibs/strerr2.h>
+#include <skalibs/env.h>
+#include <skalibs/djbunix.h>
+
+#include "s6tls-internal.h"
+
+#define USAGE "s6-tlsc [ -S | -s ] [ -Y | -y ] [ -v verbosity ] [ -K timeout ] [ -k servername ] [ -Z | -z ] [ -6 fdr ] [ -7 fdw ] prog..."
+#define dieusage() strerr_dieusage(100, USAGE)
+
+static void child (int const [4][2], uint32_t, unsigned int, unsigned int, char const *) gccattr_noreturn ;
+static void child (int const p[4][2], uint32_t options, unsigned int verbosity, unsigned int kimeout, char const *servername)
+{
+ int fds[3] = { p[0][0], p[1][1], p[2][1] } ;
+ PROG = "s6-tlsc (child)" ;
+ close(p[2][0]) ;
+ close(p[0][1]) ;
+ close(p[1][0]) ;
+ if (fd_move(0, p[3][0]) < 0 || fd_move(1, p[3][1]) < 0)
+ strerr_diefu1sys(111, "move network fds to stdin/stdout") ;
+ s6tls_exec_tlscio(fds, options, verbosity, kimeout, servername) ;
+}
+
+int main (int argc, char const *const *argv)
+{
+ unsigned int verbosity = 1 ;
+ unsigned int kimeout = 0 ;
+ int p[4][2] ;
+ uint32_t coptions = 0 ;
+ uint32_t poptions = 1 ;
+ pid_t pid ;
+ char const *servername = 0 ;
+
+ PROG = "s6-tlsc" ;
+ {
+ subgetopt_t l = SUBGETOPT_ZERO ;
+ for (;;)
+ {
+ int opt = subgetopt_r(argc, argv, "SsYyv:K:k:Zz6:7:", &l) ;
+ if (opt == -1) break ;
+ switch (opt)
+ {
+ case 'S' : coptions &= ~4 ; break ;
+ case 's' : coptions |= 4 ; break ;
+ case 'Y' : coptions &= ~1 ; break ;
+ case 'y' : coptions |= 1 ; break ;
+ case 'v' : if (!uint0_scan(l.arg, &verbosity)) dieusage() ; break ;
+ case 'K' : if (!uint0_scan(l.arg, &kimeout)) dieusage() ; break ;
+ case 'k' : servername = l.arg ; break ;
+ case 'Z' : poptions &= ~1 ; break ;
+ case 'z' : poptions |= 1 ; break ;
+ case '6' :
+ {
+ unsigned int fd ;
+ if (!uint0_scan(l.arg, &fd)) dieusage() ;
+ p[3][0] = fd ;
+ break ;
+ }
+ case '7' :
+ {
+ unsigned int fd ;
+ if (!uint0_scan(l.arg, &fd)) dieusage() ;
+ p[3][1] = fd ;
+ break ;
+ }
+ default : dieusage() ;
+ }
+ }
+ argc -= l.ind ; argv += l.ind ;
+ }
+ if (!argc) dieusage() ;
+ fd_sanitize() ;
+ if (fcntl(p[3][0], F_GETFD) < 0 || fcntl(p[3][1], F_GETFD) < 0)
+ strerr_diefu1sys(111, "check network fds") ;
+
+ if (pipe(p[0]) < 0 || pipe(p[1]) < 0 || pipe(p[2]) < 0)
+ strerr_diefu1sys(111, "pipe") ;
+ pid = fork() ;
+ switch (pid)
+ {
+ case -1 : strerr_diefu1sys(111, "fork") ;
+ case 0 : child(p, coptions, verbosity, kimeout, servername) ;
+ default : break ;
+ }
+ s6tls_sync_and_exec_app(argv, p, pid, poptions) ;
+}