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[tor-commits] [tor/master] Move broken primes to dynamic_dh_modulus.broken.



commit 1df6b5a734acd381d49a57bb689c7dcd2cd66ad9
Author: George Kadianakis <desnacked@xxxxxxxxx>
Date:   Fri Nov 25 17:39:45 2011 +0100

    Move broken primes to dynamic_dh_modulus.broken.
---
 src/common/crypto.c |   19 +++++++++++++++++++
 1 files changed, 19 insertions(+), 0 deletions(-)

diff --git a/src/common/crypto.c b/src/common/crypto.c
index 1974a39..da3b80b 100644
--- a/src/common/crypto.c
+++ b/src/common/crypto.c
@@ -1900,6 +1900,7 @@ crypto_get_stored_dynamic_dh_modulus(const char *fname)
   char *contents = NULL;
   DH *dh = NULL;
   int dh_codes;
+  char *fname_new = NULL;
   BIGNUM *dynamic_dh_modulus = BN_new();
 
   tor_assert(fname);
@@ -1951,6 +1952,24 @@ crypto_get_stored_dynamic_dh_modulus(const char *fname)
   goto done;
 
  err:
+
+  { /* move broken prime to $filename.broken */
+
+    fname_new = tor_malloc(strlen(fname) + 8);
+
+    /* no can do if these functions return error */
+    strlcpy(fname_new, fname, strlen(fname) + 8);
+    strlcat(fname_new, ".broken", strlen(fname) + 8);
+
+    log_warn(LD_GENERAL, "Moving broken dynamic DH prime to '%s'.", fname_new);
+
+    if (replace_file(fname, fname_new))
+      log_warn(LD_GENERAL, "Error while moving '%s' to '%s'.", fname, fname_new);
+
+    tor_free(fname_new);
+
+  }
+
   if (dynamic_dh_modulus) {
     BN_free(dynamic_dh_modulus);
     dynamic_dh_modulus = NULL;



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