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authorDave Reisner <dreisner@archlinux.org>2012-03-27 23:10:34 -0400
committerDan McGee <dan@archlinux.org>2012-03-28 09:55:14 -0500
commitbe0e0444040dc7d84e86c5b5e60b786441c4d97e (patch)
tree52990f33b63de0bf186f031cff53a74407c59fd6
parentf988aa6b32503f5d4003b1402089df74adf8b485 (diff)
signing: cope with gpg2's failure at life
For key searches only, gpg2 will fail to lookup any and all keys that are not prefixed with 0x. Signed-off-by: Dave Reisner <dreisner@archlinux.org> Signed-off-by: Dan McGee <dan@archlinux.org>
-rw-r--r--lib/libalpm/signing.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/lib/libalpm/signing.c b/lib/libalpm/signing.c
index 3ec957de..fc8dd5bb 100644
--- a/lib/libalpm/signing.c
+++ b/lib/libalpm/signing.c
@@ -234,6 +234,14 @@ static int key_search(alpm_handle_t *handle, const char *fpr,
gpgme_keylist_mode_t mode;
gpgme_key_t key;
int ret = -1;
+ size_t fpr_len;
+ char *full_fpr;
+
+ /* gpg2 goes full retard here. For key searches ONLY, we need to prefix the
+ * key fingerprint with 0x, or the lookup will fail. */
+ fpr_len = strlen(fpr);
+ MALLOC(full_fpr, fpr_len + 3, RET_ERR(handle, ALPM_ERR_MEMORY, -1));
+ sprintf(full_fpr, "0x%s", fpr);
memset(&ctx, 0, sizeof(ctx));
err = gpgme_new(&ctx);
@@ -248,14 +256,14 @@ static int key_search(alpm_handle_t *handle, const char *fpr,
_alpm_log(handle, ALPM_LOG_DEBUG, "looking up key %s remotely\n", fpr);
- err = gpgme_get_key(ctx, fpr, &key, 0);
+ err = gpgme_get_key(ctx, full_fpr, &key, 0);
if(gpg_err_code(err) == GPG_ERR_EOF) {
_alpm_log(handle, ALPM_LOG_DEBUG, "key lookup failed, unknown key\n");
/* Try an alternate lookup using the 8 character fingerprint value, since
* busted-ass keyservers can't support lookups using subkeys with the full
* value as of now. This is why 2012 is not the year of PGP encryption. */
- if(strlen(fpr) > 8) {
- const char *short_fpr = fpr + strlen(fpr) - 8;
+ if(fpr_len > 8) {
+ const char *short_fpr = memcpy(&full_fpr[fpr_len - 8], "0x", 2);
_alpm_log(handle, ALPM_LOG_DEBUG,
"looking up key %s remotely\n", short_fpr);
err = gpgme_get_key(ctx, short_fpr, &key, 0);
@@ -289,6 +297,7 @@ static int key_search(alpm_handle_t *handle, const char *fpr,
error:
_alpm_log(handle, ALPM_LOG_DEBUG, "gpg error: %s\n", gpgme_strerror(err));
+ free(full_fpr);
gpgme_release(ctx);
return ret;
}