sort_pgp.c

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#include "config.h"
#include <locale.h>
#include <stdbool.h>
#include "mutt/lib.h"
#include "config/lib.h"
#include "core/lib.h"
#include "lib.h"
#include "pgp.h"
#include "pgplib.h"
#include "sort.h"
 
static int pgp_sort_address(const void *a, const void *b, void *sdata)
{
  struct PgpUid const *s = *(struct PgpUid const *const *) a;
  struct PgpUid const *t = *(struct PgpUid const *const *) b;
  const bool sort_reverse = *(bool *) sdata;
 
  int rc = mutt_istr_cmp(s->addr, t->addr);
  if (rc != 0)
    goto done;
 
  rc = mutt_istr_cmp(pgp_fpr_or_lkeyid(s->parent), pgp_fpr_or_lkeyid(t->parent));
 
done:
  return sort_reverse ? -rc : rc;
}
 
static int pgp_sort_date(const void *a, const void *b, void *sdata)
{
  struct PgpUid const *s = *(struct PgpUid const *const *) a;
  struct PgpUid const *t = *(struct PgpUid const *const *) b;
  const bool sort_reverse = *(bool *) sdata;
 
  int rc = mutt_numeric_cmp(s->parent->gen_time, t->parent->gen_time);
  if (rc != 0)
    goto done;
 
  rc = mutt_istr_cmp(s->addr, t->addr);
 
done:
  return sort_reverse ? -rc : rc;
}
 
static int pgp_sort_keyid(const void *a, const void *b, void *sdata)
{
  struct PgpUid const *s = *(struct PgpUid const *const *) a;
  struct PgpUid const *t = *(struct PgpUid const *const *) b;
  const bool sort_reverse = *(bool *) sdata;
 
  int rc = mutt_istr_cmp(pgp_fpr_or_lkeyid(s->parent), pgp_fpr_or_lkeyid(t->parent));
  if (rc != 0)
    goto done;
 
  rc = mutt_istr_cmp(s->addr, t->addr);
 
done:
  return sort_reverse ? -rc : rc;
}
 
static int pgp_sort_trust(const void *a, const void *b, void *sdata)
{
  struct PgpUid const *s = *(struct PgpUid const *const *) a;
  struct PgpUid const *t = *(struct PgpUid const *const *) b;
  const bool sort_reverse = *(bool *) sdata;
 
  int rc = mutt_numeric_cmp(s->parent->flags & KEYFLAG_RESTRICTIONS,
                            t->parent->flags & KEYFLAG_RESTRICTIONS);
  if (rc != 0)
    goto done;
 
  // Note: reversed
  rc = mutt_numeric_cmp(t->trust, s->trust);
  if (rc != 0)
    goto done;
 
  // Note: reversed
  rc = mutt_numeric_cmp(t->parent->keylen, s->parent->keylen);
  if (rc != 0)
    goto done;
 
  // Note: reversed
  rc = mutt_numeric_cmp(t->parent->gen_time, s->parent->gen_time);
  if (rc != 0)
    goto done;
 
  rc = mutt_istr_cmp(s->addr, t->addr);
  if (rc != 0)
    goto done;
 
  rc = mutt_istr_cmp(pgp_fpr_or_lkeyid(s->parent), pgp_fpr_or_lkeyid(t->parent));
 
done:
  return sort_reverse ? -rc : rc;
}
 
void pgp_sort_keys(struct PgpUidArray *pua)
{
  if (!pua)
    return;
 
  sort_t fn = NULL;
  short c_pgp_sort_keys = cs_subset_sort(NeoMutt->sub, "pgp_key_sort");
  switch (c_pgp_sort_keys & SORT_MASK)
  {
    case KEY_SORT_ADDRESS:
      fn = pgp_sort_address;
      break;
    case KEY_SORT_DATE:
      fn = pgp_sort_date;
      break;
    case KEY_SORT_KEYID:
      fn = pgp_sort_keyid;
      break;
    case KEY_SORT_TRUST:
    default:
      fn = pgp_sort_trust;
      break;
  }
 
  if (ARRAY_SIZE(pua) > 1)
  {
    bool sort_reverse = c_pgp_sort_keys & SORT_REVERSE;
    ARRAY_SORT(pua, fn, &sort_reverse);
  }
}