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/* ISC license. */
#include <unistd.h>
#include <limits.h>
#include <skalibs/types.h>
#include <skalibs/env.h>
#include <skalibs/cspawn.h>
#include <skalibs/djbunix.h>
#include <skalibs/exec.h>
#include <s6-networking/config.h>
#include <smtpd-starttls-proxy/config.h>
#include "qmailr.h"
#include "qmail-remote.h"
void run_tls (int fdr, char const *fmtip, unsigned int timeoutconnect, unsigned int timeoutremote, qmailr_tls const *qtls, size_t helopos, size_t const *eaddrpos, unsigned int n, char const *storage)
{
int fdw = dup(fdr) ;
unsigned int m = 0 ;
char fmtr[UINT_FMT] ;
char fmtw[UINT_FMT] ;
char fmtt[UINT_FMT] ;
char fmtk[UINT_FMT] ;
char const *argv[20 + n] ;
if (fdw == -1) qmailr_tempusys("duplicate file descriptor") ;
if (!env_mexec("TLS_UID", 0) || !env_mexec("TLS_GID", 0)
|| !env_mexec(qtls->flagtadir ? "CADIR" : "CAFILE", storage + qtls->tapos)) dienomem() ;
if (qtls->flagclientcert)
{
if (!env_mexec("CERTFILE", storage + qtls->certpos)
|| !env_mexec("KEYFILE", storage + qtls->keypos)) dienomem() ;
}
{
int devnull = open_readb("/dev/null") ;
if (devnull >= 0)
{
if (devnull < 3) qmailr_temp("weird fd configuration") ;
fd_move(2, devnull) ;
}
}
fmtr[uint_fmt(fmtr, (unsigned int)fdr)] = 0 ;
fmtw[uint_fmt(fmtw, (unsigned int)fdw)] = 0 ;
fmtt[uint_fmt(fmtt, timeoutremote)] = 0 ;
fmtk[uint_fmt(fmtk, timeoutconnect > UINT_MAX/1000 ? UINT_MAX : timeoutconnect * 1000)] = 0 ;
argv[m++] = S6_NETWORKING_EXTBINPREFIX "s6-tlsc" ;
argv[m++] = "-Sjzv0" ;
argv[m++] = "-K" ;
argv[m++] = fmtk ;
argv[m++] = "-6" ;
argv[m++] = fmtr ;
argv[m++] = "-7" ;
argv[m++] = fmtw ;
argv[m++] = "--" ;
argv[m++] = SMTPD_STARTTLS_PROXY_LIBEXECPREFIX "qmail-remote-io" ;
argv[m++] = "-t" ;
argv[m++] = fmtt ;
argv[m++] = "-6" ;
argv[m++] = fmtr ;
argv[m++] = "-7" ;
argv[m++] = fmtw ;
argv[m++] = "--" ;
argv[m++] = fmtip ;
argv[m++] = storage + helopos ;
for (unsigned int i = 0 ; i < n ; i++) argv[m++] = storage + eaddrpos[i] ;
argv[m++] = 0 ;
mexec(argv) ;
qmailr_tempusys("exec ", argv[0]) ;
}
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