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/* ISC license. */
#include <sys/types.h>
#include <errno.h>
#include <skalibs/uint.h>
#include <skalibs/bytestr.h>
#include <skalibs/sgetopt.h>
#include <skalibs/strerr2.h>
#include <skalibs/buffer.h>
#include <skalibs/tai.h>
#include <skalibs/stralloc.h>
#include <skalibs/genalloc.h>
#include <skalibs/skamisc.h>
#include <skalibs/random.h>
#include <s6-dns/s6dns.h>
#define USAGE "s6-dnstxt [ -q ] [ -r ] [ -t timeout ] name"
#define dieusage() strerr_dieusage(100, USAGE)
int main (int argc, char const *const *argv)
{
stralloc quoted = STRALLOC_ZERO ;
stralloc sa = STRALLOC_ZERO ;
genalloc offsets = GENALLOC_ZERO ; /* array of size_t */
tain_t deadline, stamp ;
size_t n ;
size_t i = 0 ;
unsigned int t = 0 ;
int flagqualify = 0 ;
int flagunsort = 0 ;
PROG = "s6-dnstxt" ;
for (;;)
{
register int opt = subgetopt(argc, argv, "qrt:") ;
if (opt == -1) break ;
switch (opt)
{
case 'q' : flagqualify = 1 ; break ;
case 'r' : flagunsort = 1 ; break ;
case 't' : if (!uint0_scan(subgetopt_here.arg, &t)) dieusage() ; break ;
default : dieusage() ;
}
}
argc -= subgetopt_here.ind ; argv += subgetopt_here.ind ;
if (argc < 1) dieusage() ;
tain_now(&stamp) ;
if (t) tain_from_millisecs(&deadline, t) ; else deadline = tain_infinite_relative ;
tain_add(&deadline, &deadline, &stamp) ;
if (!s6dns_init()) strerr_diefu1sys(111, "s6dns_init") ;
{
register int r = s6dns_resolve_txt(&sa, &offsets, argv[0], str_len(argv[0]), flagqualify, &deadline, &stamp) ;
if (r < 0) strerr_diefu2sys((errno == ETIMEDOUT) ? 99 : 111, "resolve ", argv[0]) ;
if (!r) strerr_diefu4x(2, "resolve ", argv[0], ": ", s6dns_constants_error_str(errno)) ;
}
n = genalloc_len(size_t, &offsets) ;
if (!n) return 1 ;
{
size_t printable_offsets[n] ;
for (i = 0 ; i < n ; i++)
{
size_t beg = genalloc_s(size_t, &offsets)[i] ;
size_t end = (i < n-1 ? genalloc_s(size_t, &offsets)[i+1] : sa.len) - 1 ;
printable_offsets[i] = quoted.len ;
if (!string_quote("ed, sa.s + beg, end - beg) || !stralloc_0("ed))
strerr_diefu2sys(111, "quote ", sa.s + beg) ;
}
genalloc_free(size_t, &offsets) ;
stralloc_free(&sa) ;
if (flagunsort) random_unsort((char *)printable_offsets, n, sizeof(size_t)) ;
for (i = 0 ; i < n ; i++)
if ((buffer_puts(buffer_1small, quoted.s + printable_offsets[i]) < 0)
|| (buffer_put(buffer_1small, "\n", 1) < 1))
strerr_diefu1sys(111, "write to stdout") ;
}
stralloc_free("ed) ;
if (!buffer_flush(buffer_1small))
strerr_diefu1sys(111, "write to stdout") ;
return 0 ;
}
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