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/* ISC license. */
#include <sys/types.h>
#include <skalibs/uint.h>
#include <skalibs/sgetopt.h>
#include <skalibs/strerr2.h>
#include <skalibs/djbunix.h>
#include <s6-linux-utils/config.h>
#define USAGE "s6-devd [ -q | -v ] [ -b kbufsz ] [ -l linevar ] [ -t maxlife:maxterm:maxkill ] helperprogram..."
#define dieusage() strerr_dieusage(100, USAGE)
static inline int check_targ (char const *s)
{
size_t pos = 0 ;
unsigned int t = 0 ;
pos += uint_scan(s + pos, &t) ;
if (s[pos] && s[pos++] != ':') return 0 ;
if (!t) return 1 ;
pos += uint_scan(s + pos, &t) ;
if (s[pos] && s[pos++] != ':') return 0 ;
if (!t) return 1 ;
pos += uint_scan(s + pos, &t) ;
if (s[pos]) return 0 ;
return 1 ;
}
int main (int argc, char const *const *argv, char const *const *envp)
{
unsigned int kbufsz = 65536, verbosity = 1 ;
char const *linevar = 0 ;
char const *targ = 0 ;
PROG = "s6-devd" ;
{
subgetopt_t l = SUBGETOPT_ZERO ;
for (;;)
{
register int opt = subgetopt_r(argc, argv, "qvb:l:t:", &l) ;
if (opt == -1) break ;
switch (opt)
{
case 'q' : if (verbosity) verbosity-- ; break ;
case 'v' : verbosity++ ; break ;
case 'b' : if (!uint0_scan(l.arg, &kbufsz)) dieusage() ; break ;
case 'l' : linevar = l.arg ; break ;
case 't' : if (!check_targ(l.arg)) dieusage() ; targ = l.arg ; break ;
default : dieusage() ;
}
}
argc -= l.ind ; argv += l.ind ;
}
if (!argc) strerr_dieusage(100, USAGE) ;
{
size_t pos = 0 ;
unsigned int m = 0 ;
char fmt[UINT_FMT * 3] ;
char const *newargv[argc + 15] ;
newargv[m++] = S6_LINUX_UTILS_BINPREFIX "s6-uevent-listener" ;
if (verbosity != 1)
{
newargv[m++] = "-v" ;
newargv[m++] = fmt + pos ;
pos += uint_fmt(fmt + pos, verbosity) ;
fmt[pos++] = 0 ;
}
if (kbufsz != 65536)
{
newargv[m++] = "-b" ;
newargv[m++] = fmt + pos ;
pos += uint_fmt(fmt + pos, kbufsz) ;
fmt[pos++] = 0 ;
}
newargv[m++] = "--" ;
newargv[m++] = S6_LINUX_UTILS_BINPREFIX "s6-uevent-spawner" ;
if (verbosity != 1)
{
newargv[m++] = "-v" ;
newargv[m++] = fmt + pos ;
pos += uint_fmt(fmt + pos, verbosity) ;
fmt[pos++] = 0 ;
}
if (linevar)
{
newargv[m++] = "-l" ;
newargv[m++] = linevar ;
}
if (targ)
{
newargv[m++] = "-t" ;
newargv[m++] = targ ;
}
newargv[m++] = "--" ;
while (*argv) newargv[m++] = *argv++ ;
newargv[m++] = 0 ;
pathexec_run(newargv[0], newargv, envp) ;
strerr_dieexec(111, newargv[0]) ;
}
}
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