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-rw-r--r--agent/genkey.c52
1 files changed, 36 insertions, 16 deletions
diff --git a/agent/genkey.c b/agent/genkey.c
index 30fc44d60..85b8aba7e 100644
--- a/agent/genkey.c
+++ b/agent/genkey.c
@@ -1,5 +1,6 @@
/* genkey.c - Generate a keypair
* Copyright (C) 2002, 2003, 2004, 2007, 2010 Free Software Foundation, Inc.
+ * Copyright (C) 2015 g10 Code GmbH.
*
* This file is part of GnuPG.
*
@@ -174,10 +175,12 @@ take_this_one_anyway (ctrl_t ctrl, const char *desc)
/* Check whether the passphrase PW is suitable. Returns 0 if the
passphrase is suitable and true if it is not and the user should be
- asked to provide a different one. If SILENT is set, no message are
- displayed. */
+ asked to provide a different one. If FAILED_CONSTRAINT is set, a
+ message describing the problem is returned in
+ *FAILED_CONSTRAINT. */
int
-check_passphrase_constraints (ctrl_t ctrl, const char *pw, int silent)
+check_passphrase_constraints (ctrl_t ctrl, const char *pw,
+ char **failed_constraint)
{
gpg_error_t err = 0;
unsigned int minlen = opt.min_passphrase_len;
@@ -200,11 +203,16 @@ check_passphrase_constraints (ctrl_t ctrl, const char *pw, int silent)
"Please confirm that you do not want to "
"have any protection on your key."));
- if (silent)
- return gpg_error (GPG_ERR_INV_PASSPHRASE);
+ err = 1;
+ if (failed_constraint)
+ {
+ if (opt.enforce_passphrase_constraints)
+ *failed_constraint = xstrdup (desc);
+ else
+ err = take_this_one_anyway2 (ctrl, desc,
+ _("Yes, protection is not needed"));
+ }
- err = take_this_one_anyway2 (ctrl, desc,
- _("Yes, protection is not needed"));
goto leave;
}
@@ -212,7 +220,7 @@ check_passphrase_constraints (ctrl_t ctrl, const char *pw, int silent)
in in silent mode which returns immediately. */
if (utf8_charcount (pw) < minlen )
{
- if (silent)
+ if (!failed_constraint)
{
err = gpg_error (GPG_ERR_INV_PASSPHRASE);
goto leave;
@@ -231,7 +239,7 @@ check_passphrase_constraints (ctrl_t ctrl, const char *pw, int silent)
if (nonalpha_count (pw) < minnonalpha )
{
- if (silent)
+ if (!failed_constraint)
{
err = gpg_error (GPG_ERR_INV_PASSPHRASE);
goto leave;
@@ -257,7 +265,7 @@ check_passphrase_constraints (ctrl_t ctrl, const char *pw, int silent)
if (*pw && opt.check_passphrase_pattern &&
check_passphrase_pattern (ctrl, pw))
{
- if (silent)
+ if (!failed_constraint)
{
err = gpg_error (GPG_ERR_INV_PASSPHRASE);
goto leave;
@@ -273,7 +281,7 @@ check_passphrase_constraints (ctrl_t ctrl, const char *pw, int silent)
}
}
- if (msg1 || msg2 || msg3)
+ if (failed_constraint && (msg1 || msg2 || msg3))
{
char *msg;
size_t n;
@@ -295,9 +303,14 @@ check_passphrase_constraints (ctrl_t ctrl, const char *pw, int silent)
if (n > 3 && !strcmp (msg + n - 3, "%0A"))
msg[n-3] = 0;
- /* Show error messages. */
- err = take_this_one_anyway (ctrl, msg);
- xfree (msg);
+ err = 1;
+ if (opt.enforce_passphrase_constraints)
+ *failed_constraint = msg;
+ else
+ {
+ err = take_this_one_anyway (ctrl, msg);
+ xfree (msg);
+ }
}
leave:
@@ -333,7 +346,8 @@ agent_ask_new_passphrase (ctrl_t ctrl, const char *prompt,
gpg_error_t err;
const char *text1 = prompt;
const char *text2 = _("Please re-enter this passphrase");
- const char *initial_errtext = NULL;
+ char *initial_errtext = NULL;
+ int initial_errtext_do_free = 0;
struct pin_entry_info_s *pi, *pi2;
*r_passphrase = NULL;
@@ -371,11 +385,17 @@ agent_ask_new_passphrase (ctrl_t ctrl, const char *prompt,
next_try:
err = agent_askpin (ctrl, text1, NULL, initial_errtext, pi, NULL, 0);
+ if (initial_errtext_do_free)
+ {
+ xfree (initial_errtext);
+ initial_errtext_do_free = 0;
+ }
initial_errtext = NULL;
if (!err)
{
- if (check_passphrase_constraints (ctrl, pi->pin, 0))
+ if (check_passphrase_constraints (ctrl, pi->pin, &initial_errtext))
{
+ initial_errtext_do_free = 1;
pi->failed_tries = 0;
pi2->failed_tries = 0;
goto next_try;