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/* ISC license. */
#include <sys/stat.h>
#include <sys/socket.h>
#include <unistd.h>
#include <skalibs/types.h>
#include <skalibs/sgetopt.h>
#include <skalibs/strerr2.h>
#include <skalibs/djbunix.h>
#include <skalibs/webipc.h>
#define USAGE "s6-ipcserver-socketbinder [ -d | -D ] [ -b backlog ] [ -M | -m ] path prog..."
#define dieusage() strerr_dieusage(100, USAGE)
int main (int argc, char const *const *argv, char const *const *envp)
{
unsigned int backlog = SOMAXCONN ;
int flagreuse = 1 ;
int flagdgram = 0 ;
PROG = "s6-ipcserver-socketbinder" ;
{
subgetopt_t l = SUBGETOPT_ZERO ;
for (;;)
{
int opt = subgetopt_r(argc, argv, "DdMmb:", &l) ;
if (opt == -1) break ;
switch (opt)
{
case 'D' : flagreuse = 0 ; break ;
case 'd' : flagreuse = 1 ; break ;
case 'M' : flagdgram = 0 ; break ;
case 'm' : flagdgram = 1 ; break ;
case 'b' : if (!uint0_scan(l.arg, &backlog)) dieusage() ; break ;
default : dieusage() ;
}
}
argc -= l.ind ; argv += l.ind ;
}
if (argc < 2) dieusage() ;
close(0) ;
if (flagdgram ? ipc_datagram() : ipc_stream()) strerr_diefu1sys(111, "create socket") ;
{
mode_t m = umask(0) ;
if ((flagreuse ? ipc_bind_reuse(0, argv[0]) : ipc_bind(0, argv[0])) < 0)
strerr_diefu2sys(111, "bind to ", argv[0]) ;
umask(m) ;
}
if (backlog && ipc_listen(0, backlog) < 0)
strerr_diefu2sys(111, "listen to ", argv[0]) ;
pathexec_run(argv[1], argv + 1, envp) ;
strerr_dieexec(111, argv[1]) ;
}
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