http: create function to get curl allowed protocols
[gitweb.git] / gpg-interface.c
index 0dd11eadb291b263ed34d7c6763f5cee6234c178..c4b1e8c78d396194753d8a7287678bc476f858d6 100644 (file)
@@ -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
@@ -112,12 +149,11 @@ const char *get_signing_key(void)
  */
 int sign_buffer(struct strbuf *buffer, struct strbuf *signature, const char *signing_key)
 {
-       struct child_process gpg;
+       struct child_process gpg = CHILD_PROCESS_INIT;
        const char *args[4];
        ssize_t len;
        size_t i, j, bottom;
 
-       memset(&gpg, 0, sizeof(gpg));
        gpg.argv = args;
        gpg.in = -1;
        gpg.out = -1;
@@ -173,7 +209,7 @@ int verify_signed_buffer(const char *payload, size_t payload_size,
                         const char *signature, size_t signature_size,
                         struct strbuf *gpg_output, struct strbuf *gpg_status)
 {
-       struct child_process gpg;
+       struct child_process gpg = CHILD_PROCESS_INIT;
        const char *args_gpg[] = {NULL, "--status-fd=1", "--verify", "FILE", "-", NULL};
        char path[PATH_MAX];
        int fd, ret;
@@ -183,14 +219,11 @@ int verify_signed_buffer(const char *payload, size_t payload_size,
        args_gpg[0] = gpg_program;
        fd = git_mkstemp(path, PATH_MAX, ".git_vtag_tmpXXXXXX");
        if (fd < 0)
-               return error(_("could not create temporary file '%s': %s"),
-                            path, strerror(errno));
+               return error_errno(_("could not create temporary file '%s'"), path);
        if (write_in_full(fd, signature, signature_size) < 0)
-               return error(_("failed writing detached signature to '%s': %s"),
-                            path, strerror(errno));
+               return error_errno(_("failed writing detached signature to '%s'"), path);
        close(fd);
 
-       memset(&gpg, 0, sizeof(gpg));
        gpg.argv = args_gpg;
        gpg.in = -1;
        gpg.out = -1;
@@ -202,6 +235,7 @@ 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);
 
@@ -215,6 +249,7 @@ 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);