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/* ISC license. */
#include <string.h>
#include <skalibs/sgetopt.h>
#include <skalibs/strerr.h>
#include <skalibs/djbunix.h>
#include <skalibs/socket.h>
#include <skalibs/exec.h>
#define USAGE "s6-ipcclient [ -q | -Q | -v ] [ -p bindpath ] [ -l localname ] path prog..."
int main (int argc, char const *const *argv)
{
char const *bindpath = 0 ;
char const *localname = 0 ;
unsigned int verbosity = 1 ;
PROG = "s6-ipcclient" ;
{
subgetopt l = SUBGETOPT_ZERO ;
for (;;)
{
int opt = subgetopt_r(argc, argv, "qQvp:l:", &l) ;
if (opt == -1) break ;
switch (opt)
{
case 'q' : if (verbosity) verbosity-- ; break ;
case 'Q' : verbosity = 1 ; break ;
case 'v' : verbosity++ ; break ;
case 'p' : bindpath = l.arg ; break ;
case 'l' : localname = l.arg ; break ;
default : strerr_dieusage(100, USAGE) ;
}
}
argc -= l.ind ; argv += l.ind ;
}
if (argc < 2) strerr_dieusage(100, USAGE) ;
{
char modif[24 + IPCPATH_MAX] = "PROTO=IPC\0IPCLOCALPATH=" ;
size_t i = 23 ;
int s = ipc_stream_b() ;
if (s < 0) strerr_diefu1sys(111, "create socket") ;
if (bindpath && (ipc_bind(s, bindpath) == -1))
strerr_diefu2sys(111, "bind socket to ", bindpath) ;
if (!ipc_connect(s, argv[0]))
strerr_diefu2sys(111, "connect to ", argv[0]) ;
if (verbosity >= 2) strerr_warni3x(PROG, ": connected to ", argv[0]) ;
if (localname)
{
size_t n = strlen(localname) ;
if (n > IPCPATH_MAX) n = IPCPATH_MAX ;
memcpy(modif + i, localname, n) ;
i += n ; modif[i++] = 0 ;
}
else
{
int dummy ;
if (ipc_local(s, modif + i, IPCPATH_MAX, &dummy) < 0) modif[--i] = 0 ;
else i += strlen(modif + i) + 1 ;
}
if (fd_move(6, s) < 0)
strerr_diefu2sys(111, "set up fd ", "6") ;
if (fd_copy(7, 6) < 0)
strerr_diefu2sys(111, "set up fd ", "7") ;
xmexec_n(argv+1, modif, i, 2) ;
}
}
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