builtin/verify-tag.c: ignore SIGPIPE in gpg-interface

diff --git a/gpg-interface.c b/gpg-interface.c
index 68b0c814f789f39151d380b1d318d6f80090d524..22599382365eb564cdfc22b434cb60796e06b82f 100644 (file)
--- a/gpg-interface.c
+++ b/gpg-interface.c
@@ -60,6 +60,43 @@ void parse_gpg_output(struct signature_check *sigc)
        }
 }
 
+int check_signature(const char *payload, size_t plen, const char *signature,
+       size_t slen, struct signature_check *sigc)
+{
+       struct strbuf gpg_output = STRBUF_INIT;
+       struct strbuf gpg_status = STRBUF_INIT;
+       int status;
+
+       sigc->result = 'N';
+
+       status = verify_signed_buffer(payload, plen, signature, slen,
+                                     &gpg_output, &gpg_status);
+       if (status && !gpg_output.len)
+               goto out;
+       sigc->payload = xmemdupz(payload, plen);
+       sigc->gpg_output = strbuf_detach(&gpg_output, NULL);
+       sigc->gpg_status = strbuf_detach(&gpg_status, NULL);
+       parse_gpg_output(sigc);
+
+ out:
+       strbuf_release(&gpg_status);
+       strbuf_release(&gpg_output);
+
+       return sigc->result != 'G' && sigc->result != 'U';
+}
+
+void print_signature_buffer(const struct signature_check *sigc, unsigned flags)
+{
+       const char *output = flags & GPG_VERIFY_RAW ?
+               sigc->gpg_status : sigc->gpg_output;
+
+       if (flags & GPG_VERIFY_VERBOSE && sigc->payload)
+               fputs(sigc->payload, stdout);
+
+       if (output)
+               fputs(output, stderr);
+}
+
 /*
  * Look at GPG signed content (e.g. a signed tag object), whose
  * payload is followed by a detached signature on it.  Return the
@@ -200,6 +237,7 @@ int verify_signed_buffer(const char *payload, size_t payload_size,
                return error(_("could not run gpg."));
        }
 
+       sigchain_push(SIGPIPE, SIG_IGN);
        write_in_full(gpg.in, payload, payload_size);
        close(gpg.in);
 
@@ -213,6 +251,7 @@ int verify_signed_buffer(const char *payload, size_t payload_size,
        close(gpg.out);
 
        ret = finish_command(&gpg);
+       sigchain_pop(SIGPIPE);
 
        unlink_or_warn(path);