summaryrefslogtreecommitdiff
path: root/src/conn-tools/s6-tlsd.c
blob: 6a6d4ef6c3b8fcc99c09feac40857621148fffcb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
/* ISC license. */

#include <sys/types.h>
#include <skalibs/uint64.h>
#include <skalibs/uint.h>
#include <skalibs/gidstuff.h>
#include <skalibs/sgetopt.h>
#include <skalibs/strerr2.h>
#include <skalibs/tai.h>
#include <skalibs/env.h>
#include <skalibs/djbunix.h>
#include <s6-networking/config.h>

#ifdef S6_NETWORKING_USE_TLS

#include <s6-networking/stls.h>
#define s6tlsd stls_s6tlsd

#else
#ifdef S6_NETWORKING_USE_BEARSSL

#include <s6-networking/sbearssl.h>
#define s6tlsd sbearssl_s6tlsd

#else

#error No SSL backend configured.

#endif
#endif


#define USAGE "s6-tlsd [ -S | -s ] [ -Y | -y ] [ -v verbosity ] [ -K timeout ] prog..."
#define dieusage() strerr_dieusage(100, USAGE)

int main (int argc, char const *const *argv, char const *const *envp)
{
  tain_t tto ;
  unsigned int verbosity = 1 ;
  uid_t uid = 0 ;
  gid_t gid = 0 ;
  uint32_t preoptions = 0 ;
  uint32_t options = 1 ;

  PROG = "s6-tlsd" ;
  {
    subgetopt_t l = SUBGETOPT_ZERO ;
    unsigned int t = 0 ;
    for (;;)
    {
      register int opt = subgetopt_r(argc, argv, "SsYyv:K:", &l) ;
      if (opt == -1) break ;
      switch (opt)
      {
        case 'S' : options &= ~(uint32_t)1 ; break ;
        case 's' : options |= 1 ; break ;
        case 'Y' : preoptions &= ~(uint32_t)1 ; break ;
        case 'y' : preoptions |= 1 ; break ;
        case 'v' : if (!uint0_scan(l.arg, &verbosity)) dieusage() ; break ;
        case 'K' : if (!uint0_scan(l.arg, &t)) dieusage() ; break ;
        default : dieusage() ;
      }
    }
    argc -= l.ind ; argv += l.ind ;
    if (t) tain_from_millisecs(&tto, t) ; else tto = tain_infinite_relative ;
  }
  if (!argc) dieusage() ;

  if (!getuid())
  {
    char const *x = env_get2(envp, "TLS_UID") ;
    if (x)
    {
      uint64 u ;
      if (!uint640_scan(x, &u)) strerr_dieinvalid(100, "TLS_UID") ;
      uid = (uid_t)u ;
    }
    x = env_get2(envp, "TLS_GID") ;
    if (x)
    {
      if (!gid0_scan(x, &gid)) strerr_dieinvalid(100, "TLS_GID") ;
    }
  }

  return s6tlsd(argv, envp, &tto, preoptions, options, uid, gid, verbosity) ;
}