1 files changed, 0 insertions, 237 deletions
diff --git a/src/nvim/crypt.c b/src/nvim/crypt.c
deleted file mode 100644
index 2eb699d84e..0000000000
--- a/src/nvim/crypt.c
+++ /dev/null
@@ -1,237 +0,0 @@
-// Optional encryption support.
-// Mohsin Ahmed, mosh@sasi.com, 98-09-24
-// Based on zip/crypt sources.
-//
-// NOTE FOR USA: Since 2000 exporting this code from the USA is allowed to
-// most countries. There are a few exceptions, but that still should not be a
-// problem since this code was originally created in Europe and India.
-//
-// Blowfish addition originally made by Mohsin Ahmed,
-// http://www.cs.albany.edu/~mosh 2010-03-14
-// Based on blowfish by Bruce Schneier (http://www.schneier.com/blowfish.html)
-// and sha256 by Christophe Devine.
-
-#include "nvim/vim.h"
-#include "nvim/misc2.h"
-#include "nvim/blowfish.h"
-#include "nvim/ex_getln.h"
-#include "nvim/message.h"
-#include "nvim/option.h"
-#include "nvim/strings.h"
-
-static void make_crc_tab(void);
-
-static uint32_t crc_32_tab[256];
-
-// Fills the CRC table.
-static void make_crc_tab(void)
-{
-  uint32_t s;
-  uint32_t t;
-  uint32_t v;
-  static bool done = false;
-
-  if (done) {
-    return;
-  }
-
-  for (t = 0; t < 256; t++) {
-    v = t;
-
-    for (s = 0; s < 8; s++) {
-      v = (v >> 1) ^ ((v & 1) * (uint32_t)0xedb88320L);
-    }
-    crc_32_tab[t] = v;
-  }
-  done = true;
-}
-
-#define CRC32(c, b) (crc_32_tab[((int)(c) ^ (b)) & 0xff] ^ ((c) >> 8))
-
-static uint32_t keys[3]; // keys defining the pseudo-random sequence
-
-// Returns the next byte in the pseudo-random sequence.
-#define DECRYPT_BYTE_ZIP(t) { \
-  uint16_t temp; \
-  temp = (uint16_t)keys[2] | 2; \
-  t = (int)(((unsigned)(temp * (temp ^ 1U)) >> 8) & 0xff); \
-}
-
-// Updates the encryption keys with the next byte of plain text.
-#define UPDATE_KEYS_ZIP(c) { \
-  keys[0] = CRC32(keys[0], (c)); \
-  keys[1] += keys[0] & 0xff; \
-  keys[1] = keys[1] * 134775813L + 1; \
-  keys[2] = CRC32(keys[2], (int)(keys[1] >> 24)); \
-}
-
-static int crypt_busy = 0;
-static uint32_t saved_keys[3];
-static int saved_crypt_method;
-
-int crypt_method_from_string(char_u *s)
-{
-  return *s == 'b' ? 1 : 0;
-}
-
-int get_crypt_method(buf_T *buf)
-{
-  return crypt_method_from_string(*buf->b_p_cm == NUL ? p_cm : buf->b_p_cm);
-}
-
-void set_crypt_method(buf_T *buf, int method)
-{
-  free_string_option(buf->b_p_cm);
-  buf->b_p_cm = vim_strsave((char_u *)(method == 0 ? "zip" : "blowfish"));
-}
-
-void crypt_push_state(void)
-{
-  if (crypt_busy == 1) {
-    // Save the state
-    if (use_crypt_method == 0) {
-      saved_keys[0] = keys[0];
-      saved_keys[1] = keys[1];
-      saved_keys[2] = keys[2];
-    } else {
-      bf_crypt_save();
-    }
-    saved_crypt_method = use_crypt_method;
-  } else if (crypt_busy > 1) {
-    EMSG2(_(e_intern2), "crypt_push_state()");
-  }
-  crypt_busy++;
-}
-
-void crypt_pop_state(void)
-{
-  crypt_busy--;
-
-  if (crypt_busy == 1) {
-    use_crypt_method = saved_crypt_method;
-
-    if (use_crypt_method == 0) {
-      keys[0] = saved_keys[0];
-      keys[1] = saved_keys[1];
-      keys[2] = saved_keys[2];
-    } else {
-      bf_crypt_restore();
-    }
-  }
-}
-
-void crypt_encode(char_u *from, size_t len, char_u *to)
-{
-  size_t i;
-  int ztemp;
-  int t;
-
-  if (use_crypt_method == 0) {
-    for (i = 0; i < len; i++) {
-      ztemp = from[i];
-      DECRYPT_BYTE_ZIP(t);
-      UPDATE_KEYS_ZIP(ztemp);
-      to[i] = t ^ ztemp;
-    }
-  } else {
-    bf_crypt_encode(from, len, to);
-  }
-}
-
-void crypt_decode(char_u *ptr, long len)
-{
-  char_u *p;
-
-  if (use_crypt_method == 0) {
-    for (p = ptr; p < ptr + len; p++) {
-      uint16_t temp;
-
-      temp = (uint16_t)keys[2] | 2;
-      temp = (int)(((unsigned)(temp * (temp ^ 1U)) >> 8) & 0xff);
-      UPDATE_KEYS_ZIP(*p ^= temp);
-    }
-  } else {
-    bf_crypt_decode(ptr, len);
-  }
-}
-
-void crypt_init_keys(char_u *passwd)
-{
-  if ((passwd != NULL) && (*passwd != NUL)) {
-    if (use_crypt_method == 0) {
-      char_u *p;
-
-      make_crc_tab();
-      keys[0] = 305419896L;
-      keys[1] = 591751049L;
-      keys[2] = 878082192L;
-
-      for (p = passwd; *p != NUL; p++) {
-        UPDATE_KEYS_ZIP((int)*p);
-      }
-    } else {
-      bf_crypt_init_keys(passwd);
-    }
-  }
-}
-
-void free_crypt_key(char_u *key)
-{
-  char_u *p;
-
-  if (key != NULL) {
-    for (p = key; *p != NUL; p++) {
-      *p = 0;
-    }
-    free(key);
-  }
-}
-
-char_u *get_crypt_key(int store, int twice)
-{
-  char_u *p1;
-  char_u *p2 = NULL;
-  int round;
-
-  for (round = 0;; round++) {
-    cmdline_star = TRUE;
-    cmdline_row = msg_row;
-    char_u *prompt = (round == 0)
-        ? (char_u *) _("Enter encryption key: ")
-        : (char_u *) _("Enter same key again: ");
-    p1 = getcmdline_prompt(NUL, prompt, 0, EXPAND_NOTHING, NULL);
-    cmdline_star = FALSE;
-    if (p1 == NULL) {
-      break;
-    }
-
-    if (round == twice) {
-      if ((p2 != NULL) && (STRCMP(p1, p2) != 0)) {
-        MSG(_("Keys don't match!"));
-        free_crypt_key(p1);
-        free_crypt_key(p2);
-        p2 = NULL;
-        round = -1; // Do it again
-        continue;
-      }
-
-      if (store) {
-        set_option_value((char_u *) "key", 0L, p1, OPT_LOCAL);
-        free_crypt_key(p1);
-        p1 = curbuf->b_p_key;
-      }
-      break;
-    }
-    p2 = p1;
-  }
-
-  // Since the user typed this, no need to wait for return.
-  if (msg_didout) {
-    msg_putchar('\n');
-  }
-  need_wait_return = FALSE;
-  msg_didout = FALSE;
-
-  free_crypt_key(p2);
-  return p1;
-}