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/* ISC license. */
#include <stdint.h>
#include <string.h>
#include <errno.h>
#include <skalibs/uint32.h>
#include <skalibs/stralloc.h>
#include <skalibs/genalloc.h>
#include <skalibs/direntry.h>
#include <skalibs/djbunix.h>
#include <s6-networking/sbearssl.h>
int sbearssl_ta_readdir (char const *dirfn, genalloc *taga, stralloc *tasa)
{
size_t tasabase = tasa->len ;
size_t tagabase = genalloc_len(sbearssl_ta, taga) ;
size_t dirfnlen = strlen(dirfn) ;
int tasawasnull = !tasa->s ;
int tagawasnull = !genalloc_s(sbearssl_ta, taga) ;
stralloc certsa = STRALLOC_ZERO ;
genalloc certga = GENALLOC_ZERO ;
DIR *dir = opendir(dirfn) ;
char fn[dirfnlen + 12] ;
if (!dir) return -1 ;
memcpy(fn, dirfn, dirfnlen) ;
fn[dirfnlen] = '/' ;
for (;;)
{
direntry *d ;
uint32_t dummy ;
errno = 0 ;
d = readdir(dir) ;
if (!d) break ;
/* only process files with valid hash names */
if (uint32_xscan(d->d_name, &dummy) != 8 || d->d_name[8] != '.' || d->d_name[9] != '0' || d->d_name[10]) continue ;
memcpy(fn + dirfnlen + 1, d->d_name, 11) ;
genalloc_setlen(sbearssl_cert, &certga, 0) ;
certsa.len = 0 ;
if (sbearssl_cert_readfile(fn, &certga, &certsa)) continue ;
sbearssl_ta_certs(taga, tasa, genalloc_s(sbearssl_cert, &certga), genalloc_len(sbearssl_cert, &certga), certsa.s) ;
}
if (errno) goto fail ;
dir_close(dir) ;
genalloc_free(sbearssl_cert, &certga) ;
stralloc_free(&certsa) ;
return 0 ;
fail:
dir_close(dir) ;
genalloc_free(sbearssl_cert, &certga) ;
stralloc_free(&certsa) ;
if (tagawasnull) genalloc_free(sbearssl_ta, taga) ;
else genalloc_setlen(sbearssl_ta, taga, tagabase) ;
if (tasawasnull) stralloc_free(tasa) ;
else tasa->len = tasabase ;
return -1 ;
}
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