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/* ISC license. */
#include <unistd.h>
#include <skalibs/strerr.h>
#include <skalibs/djbunix.h>
#include "s6tls-internal.h"
#define MAXENVSIZE 4096
void s6tls_sync_and_exec_app (char const *const *argv, int const p[4][2], pid_t pid, uint32_t options)
{
char buf[MAXENVSIZE] ;
ssize_t r ;
close(p[2][1]) ;
close(p[1][1]) ;
close(p[0][0]) ;
if (fd_move(p[3][0], p[1][0]) < 0 || fd_move(p[3][1], p[0][1]) < 0)
strerr_diefu1sys(111, "move file descriptors") ;
r = read(p[2][0], buf, MAXENVSIZE) ;
if (r < 0) strerr_diefu1sys(111, "read from handshake notification pipe") ;
if (!r)
{
int wstat ;
if (wait_pid(pid, &wstat) < 0)
strerr_diefu1sys(111, "waitpid") ;
_exit(wait_estatus(wstat)) ;
}
if (r >= MAXENVSIZE) strerr_dief1x(101, "SSL data too large; recompile with a bigger MAXENVSIZE") ;
close(p[2][0]) ;
s6tls_clean_and_exec(argv, options, buf, r-1) ;
}
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