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/* ISC license. */
#include <skalibs/buffer.h>
#include <skalibs/sgetopt.h>
#include <skalibs/strerr.h>
#include <skalibs/stralloc.h>
#include <skalibs/djbunix.h>
#define USAGE "s6-linkname [ -n ] [ -f ] link"
#define dieusage() strerr_dieusage(100, USAGE)
int main (int argc, char const *const *argv)
{
stralloc sa = STRALLOC_ZERO ;
int path = 0, nl = 1 ;
PROG = "s6-linkname" ;
{
subgetopt l = SUBGETOPT_ZERO ;
for (;;)
{
int opt = subgetopt_r(argc, argv, "nf", &l) ;
if (opt == -1) break ;
switch(opt)
{
case 'n' : nl = 0 ; break ;
case 'f' : path = 1 ; break ;
default : dieusage() ;
}
}
argv += l.ind ; argc -= l.ind ;
}
if (!argc) dieusage() ;
if ((path ? sarealpath(&sa, *argv) : sareadlink(&sa, *argv)) < 0)
strerr_diefu2sys(111, "resolve ", *argv) ;
if ((buffer_put(buffer_1small, sa.s, sa.len) < 0)
|| (nl && (buffer_put(buffer_1small, "\n", 1)) < 0)
|| (!buffer_flush(buffer_1small)))
strerr_diefu1sys(111, "write to stdout") ;
return 0 ;
}
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