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-rw-r--r--commit.c20
-rw-r--r--commit.h9
2 files changed, 25 insertions, 4 deletions
diff --git a/commit.c b/commit.c
index d9ccbae..d42ab97 100644
--- a/commit.c
+++ b/commit.c
@@ -995,7 +995,7 @@ static const char *gpg_sig_headers[] = {
"gpgsig-sha256",
};
-static int do_sign_commit(struct strbuf *buf, const char *keyid)
+int sign_with_header(struct strbuf *buf, const char *keyid)
{
struct strbuf sig = STRBUF_INIT;
int inspos, copypos;
@@ -1035,13 +1035,26 @@ static int do_sign_commit(struct strbuf *buf, const char *keyid)
return 0;
}
+
+
int parse_signed_commit(const struct commit *commit,
struct strbuf *payload, struct strbuf *signature,
const struct git_hash_algo *algop)
{
-
unsigned long size;
const char *buffer = get_commit_buffer(commit, &size);
+ int ret = parse_buffer_signed_by_header(buffer, size, payload, signature, algop);
+
+ unuse_commit_buffer(commit, buffer);
+ return ret;
+}
+
+int parse_buffer_signed_by_header(const char *buffer,
+ unsigned long size,
+ struct strbuf *payload,
+ struct strbuf *signature,
+ const struct git_hash_algo *algop)
+{
int in_signature = 0, saw_signature = 0, other_signature = 0;
const char *line, *tail, *p;
const char *gpg_sig_header = gpg_sig_headers[hash_algo_by_ptr(algop)];
@@ -1078,7 +1091,6 @@ int parse_signed_commit(const struct commit *commit,
}
line = next;
}
- unuse_commit_buffer(commit, buffer);
return saw_signature;
}
@@ -1532,7 +1544,7 @@ int commit_tree_extended(const char *msg, size_t msg_len,
if (encoding_is_utf8 && !verify_utf8(&buffer))
fprintf(stderr, _(commit_utf8_warn));
- if (sign_commit && do_sign_commit(&buffer, sign_commit)) {
+ if (sign_commit && sign_with_header(&buffer, sign_commit)) {
result = -1;
goto out;
}
diff --git a/commit.h b/commit.h
index 030aa65..e2856ce 100644
--- a/commit.h
+++ b/commit.h
@@ -360,4 +360,13 @@ int compare_commits_by_gen_then_commit_date(const void *a_, const void *b_, void
LAST_ARG_MUST_BE_NULL
int run_commit_hook(int editor_is_used, const char *index_file, const char *name, ...);
+/* Sign a commit or tag buffer, storing the result in a header. */
+int sign_with_header(struct strbuf *buf, const char *keyid);
+/* Parse the signature out of a header. */
+int parse_buffer_signed_by_header(const char *buffer,
+ unsigned long size,
+ struct strbuf *payload,
+ struct strbuf *signature,
+ const struct git_hash_algo *algop);
+
#endif /* COMMIT_H */