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/* ISC license. */
#include <unistd.h>
#include <stdlib.h>
#include <skalibs/sgetopt.h>
#include <skalibs/types.h>
#include <skalibs/strerr.h>
#include <skalibs/djbunix.h>
#define USAGE "s6-chown [ -U ] [ -u uid ] [ -g gid ] file"
int main (int argc, char const *const *argv)
{
uid_t uid = -1 ;
gid_t gid = -1 ;
PROG = "s6-chown" ;
{
subgetopt l = SUBGETOPT_ZERO ;
for (;;)
{
int opt = subgetopt_r(argc, argv, "Uu:g:", &l) ;
if (opt == -1) break ;
switch (opt)
{
case 'u':
{
if (!uid0_scan(l.arg, &uid)) strerr_dieusage(100, USAGE) ;
break ;
}
case 'g':
{
if (!gid0_scan(l.arg, &gid)) strerr_dieusage(100, USAGE) ;
break ;
}
case 'U':
{
char const *s = getenv("UID") ;
if (!s) strerr_dienotset(100, "UID") ;
if (!uid0_scan(s, &uid)) strerr_dieinvalid(100, "UID") ;
s = getenv("GID") ;
if (!s) strerr_dienotset(100, "GID") ;
if (!gid0_scan(s, &gid)) strerr_dieinvalid(100, "GID") ;
break ;
}
default : strerr_dieusage(100, USAGE) ;
}
}
argc -= l.ind ; argv += l.ind ;
}
if (!argc) strerr_dieusage(100, USAGE) ;
if (chown(*argv, uid, gid) == -1)
strerr_diefu2sys(111, "chown ", argv[0]) ;
return 0 ;
}
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