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/* ISC license. */
#include <skalibs/uint.h>
#include <skalibs/bytestr.h>
#include <skalibs/sgetopt.h>
#include <skalibs/strerr2.h>
#include <skalibs/djbunix.h>
#include <s6/config.h>
#include <s6/s6-supervise.h>
#define USAGE "s6-svc [ -D | -U ] [ -T timeout ] [ -abqhkti12pcoduxO ] servicedir"
#define dieusage() strerr_dieusage(100, USAGE)
#define DATASIZE 63
int main (int argc, char const *const *argv, char const *const *envp)
{
char data[DATASIZE+1] = "-" ;
unsigned int datalen = 1 ;
unsigned int timeout = 0 ;
char updown[3] = "-\0" ;
PROG = "s6-svc" ;
{
subgetopt_t l = SUBGETOPT_ZERO ;
for (;;)
{
register int opt = subgetopt_r(argc, argv, "DUabqhkti12pcoduxOT:", &l) ;
if (opt == -1) break ;
switch (opt)
{
case 'D' : updown[1] = 'd' ; break ;
case 'U' : updown[1] = 'U' ; break ;
case 'a' :
case 'b' :
case 'q' :
case 'h' :
case 'k' :
case 't' :
case 'i' :
case '1' :
case '2' :
case 'p' :
case 'c' :
case 'o' :
case 'd' :
case 'u' :
case 'x' :
case 'O' :
{
if (datalen >= DATASIZE) strerr_dief1x(100, "too many commands") ;
data[datalen++] = opt ;
break ;
}
case 'T' : if (!uint0_scan(l.arg, &timeout)) dieusage() ; break ;
default : dieusage() ;
}
}
argc -= l.ind ; argv += l.ind ;
}
if (!argc) dieusage() ;
if (updown[1])
{
char const *newargv[11] ;
unsigned int m = 0 ;
char fmt[UINT_FMT] ;
newargv[m++] = S6_BINPREFIX "s6-svlisten1" ;
newargv[m++] = updown ;
if (timeout)
{
fmt[uint_fmt(fmt, timeout)] = 0 ;
newargv[m++] = "-t" ;
newargv[m++] = fmt ;
}
newargv[m++] = "--" ;
newargv[m++] = argv[0] ;
newargv[m++] = S6_BINPREFIX "s6-svc" ;
newargv[m++] = data ;
newargv[m++] = "--" ;
newargv[m++] = argv[0] ;
newargv[m++] = 0 ;
pathexec_run(newargv[0], newargv, envp) ;
strerr_dieexec(111, newargv[0]) ;
}
else if (datalen > 1)
{
unsigned int arglen = str_len(argv[0]) ;
char tmp[arglen + 9 + sizeof(S6_SUPERVISE_CTLDIR)] ;
register int r ;
byte_copy(tmp, arglen, argv[0]) ;
tmp[arglen] = '/' ;
byte_copy(tmp + arglen + 1, 8 + sizeof(S6_SUPERVISE_CTLDIR), S6_SUPERVISE_CTLDIR "/control") ;
r = s6_svc_write(tmp, data + 1, datalen - 1) ;
if (r < 0) strerr_diefu2sys(111, "control ", argv[0]) ;
else if (!r) strerr_diefu3x(100, "control ", argv[0], ": supervisor not listening") ;
}
return 0 ;
}
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