diff options
Diffstat (limited to 'Linux-PAM/modules/pam_unix/bigcrypt.c')
| -rw-r--r-- | Linux-PAM/modules/pam_unix/bigcrypt.c | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/Linux-PAM/modules/pam_unix/bigcrypt.c b/Linux-PAM/modules/pam_unix/bigcrypt.c index d825bc71..9cd55384 100644 --- a/Linux-PAM/modules/pam_unix/bigcrypt.c +++ b/Linux-PAM/modules/pam_unix/bigcrypt.c @@ -51,7 +51,9 @@ char *bigcrypt(const char *key, const char *salt) { char *dec_c2_cryptbuf; - +#ifdef HAVE_CRYPT_R + struct crypt_data *cdata; +#endif unsigned long int keylen, n_seg, j; char *cipher_ptr, *plaintext_ptr, *tmp_ptr, *salt_ptr; char keybuf[KEYBUF_SIZE + 1]; @@ -63,6 +65,14 @@ char *bigcrypt(const char *key, const char *salt) if (!dec_c2_cryptbuf) { return NULL; } +#ifdef HAVE_CRYPT_R + cdata = malloc(sizeof(*cdata)); + if(!cdata) { + free(dec_c2_cryptbuf); + return NULL; + } + cdata->initialized = 0; +#endif memset(keybuf, 0, KEYBUF_SIZE + 1); memset(dec_c2_cryptbuf, 0, CBUF_SIZE); @@ -92,8 +102,11 @@ char *bigcrypt(const char *key, const char *salt) plaintext_ptr = keybuf; /* do the first block with supplied salt */ +#ifdef HAVE_CRYPT_R + tmp_ptr = crypt_r(plaintext_ptr, salt, cdata); /* libc crypt_r() */ +#else tmp_ptr = crypt(plaintext_ptr, salt); /* libc crypt() */ - +#endif /* and place in the static area */ strncpy(cipher_ptr, tmp_ptr, 13); cipher_ptr += ESEGMENT_SIZE + SALT_SIZE; @@ -110,7 +123,11 @@ char *bigcrypt(const char *key, const char *salt) if (n_seg > 1) { for (j = 2; j <= n_seg; j++) { +#ifdef HAVE_CRYPT_R + tmp_ptr = crypt_r(plaintext_ptr, salt_ptr, cdata); +#else tmp_ptr = crypt(plaintext_ptr, salt_ptr); +#endif /* skip the salt for seg!=0 */ strncpy(cipher_ptr, (tmp_ptr + SALT_SIZE), ESEGMENT_SIZE); @@ -122,7 +139,10 @@ char *bigcrypt(const char *key, const char *salt) } D(("key=|%s|, salt=|%s|\nbuf=|%s|\n", key, salt, dec_c2_cryptbuf)); - /* this is the <NUL> terminated encrypted password */ +#ifdef HAVE_CRYPT_R + free(cdata); +#endif + /* this is the <NUL> terminated encrypted password */ return dec_c2_cryptbuf; } |