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g10: Minor clean up for export.c.

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* g10/export.c (export_ssh_key): Check IDENTIFIER for error.
Release base64 thing on error of get_membuf.

--

Compiler (older) may misunderstand the variable IDENTIFIER is not
initialized, while good one can do better analysys on the value for
ERR (and thus, IDENTIFIER).

On the error of get_membuf, still, b64enc_finish should be called,
even if it lost the ERR value.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2017-04-12 08:47:23 +09:00
parent c3cc9551dc
commit 0521882958
1 changed files with 16 additions and 19 deletions
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35
g10/export.c
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@ -2125,7 +2125,7 @@ export_ssh_key (ctrl_t ctrl, const char *userid)
u32 curtime = make_timestamp ();
kbnode_t latest_key, node;
PKT_public_key *pk;
const char *identifier;
const char *identifier = NULL;
membuf_t mb;
estream_t fp = NULL;
struct b64state b64_state;
@ -2321,8 +2321,6 @@ export_ssh_key (ctrl_t ctrl, const char *userid)
identifier = "ecdsa-sha2-nistp384";
else if (!strcmp (curve, "nistp521"))
identifier = "ecdsa-sha2-nistp521";
else
identifier = NULL;
if (!identifier)
err = gpg_error (GPG_ERR_UNKNOWN_CURVE);
@ -2353,7 +2351,7 @@ export_ssh_key (ctrl_t ctrl, const char *userid)
break;
}
if (err)
if (!identifier)
goto leave;
if (opt.outfile && *opt.outfile && strcmp (opt.outfile, "-"))
@ -2369,22 +2367,21 @@ export_ssh_key (ctrl_t ctrl, const char *userid)
es_fprintf (fp, "%s ", identifier);
err = b64enc_start_es (&b64_state, fp, "");
if (err)
goto leave;
{
void *blob;
size_t bloblen;
if (!err)
{
void *blob;
size_t bloblen;
blob = get_membuf (&mb, &bloblen);
if (!blob)
err = gpg_error_from_syserror ();
else
err = b64enc_write (&b64_state, blob, bloblen);
xfree (blob);
if (err)
goto leave;
}
err = b64enc_finish (&b64_state);
blob = get_membuf (&mb, &bloblen);
if (blob)
{
err = b64enc_write (&b64_state, blob, bloblen);
xfree (blob);
if (err)
goto leave;
}
err = b64enc_finish (&b64_state);
}
if (err)
goto leave;
es_fprintf (fp, " openpgp:0x%08lX\n", (ulong)keyid_from_pk (pk, NULL));