[Pkg-gnupg-commit] [gnupg2] 25/205: gpg: Fix format_keyid when dynamically allocating the buffer.

Daniel Kahn Gillmor dkg at fifthhorseman.net
Wed May 11 08:38:10 UTC 2016


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dkg pushed a commit to branch experimental
in repository gnupg2.

commit c0268c449d0f3d23be5ec7b92fe92e7e078166cf
Author: Neal H. Walfield <neal at g10code.com>
Date:   Mon Feb 8 00:31:35 2016 +0100

    gpg: Fix format_keyid when dynamically allocating the buffer.
    
    * g10/keyid.c (format_keyid): Return a char *, not a const char *.  If
    BUFFER is NULL, then set LEN to the static buffer's size.
    
    --
    Signed-off-by: Neal H. Walfield <neal at g10code.com>
---
 g10/keydb.h | 2 +-
 g10/keyid.c | 7 +++++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/g10/keydb.h b/g10/keydb.h
index e679d94..9b4a1cf 100644
--- a/g10/keydb.h
+++ b/g10/keydb.h
@@ -399,7 +399,7 @@ char *pubkey_string (PKT_public_key *pk, char *buffer, size_t bufsize);
 #define PUBKEY_STRING_SIZE 32
 u32 v3_keyid (gcry_mpi_t a, u32 *ki);
 void hash_public_key( gcry_md_hd_t md, PKT_public_key *pk );
-const char *format_keyid (u32 *keyid, int format, char *buffer, int len);
+char *format_keyid (u32 *keyid, int format, char *buffer, int len);
 size_t keystrlen(void);
 const char *keystr(u32 *keyid);
 const char *keystr_with_sub (u32 *main_kid, u32 *sub_kid);
diff --git a/g10/keyid.c b/g10/keyid.c
index f684276..49eb5f6 100644
--- a/g10/keyid.c
+++ b/g10/keyid.c
@@ -274,12 +274,15 @@ v3_keyid (gcry_mpi_t a, u32 *ki)
 }
 
 
-const char *
+char *
 format_keyid (u32 *keyid, int format, char *buffer, int len)
 {
   char tmp[KEYID_STR_SIZE];
   if (! buffer)
-    buffer = tmp;
+    {
+      buffer = tmp;
+      len = sizeof (tmp);
+    }
 
   if (format == KF_DEFAULT)
     format = opt.keyid_format;

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