From 5df838645bcdb135355205a115bf918c85987caf Mon Sep 17 00:00:00 2001 From: Jeremy Harris Date: Tue, 19 Sep 2017 21:45:10 +0100 Subject: [PATCH] Avoid repeated string-copy building command-string for rspamd --- src/src/spam.c | 43 +++++++++++++++++++++++-------------------- 1 file changed, 23 insertions(+), 20 deletions(-) diff --git a/src/src/spam.c b/src/src/spam.c index 49776a30d..fa3a4fb68 100644 --- a/src/src/spam.c +++ b/src/src/spam.c @@ -369,27 +369,30 @@ start = time(NULL); (void)fcntl(spamd_sock, F_SETFL, O_NONBLOCK); /* now we are connected to spamd on spamd_sock */ if (sd->is_rspamd) - { /* rspamd variant */ - uschar *req_str; - const uschar * helo; - const uschar * fcrdns; - const uschar * authid; - - req_str = string_sprintf("CHECK RSPAMC/1.3\r\nContent-length: %lu\r\n" - "Queue-Id: %s\r\nFrom: <%s>\r\nRecipient-Number: %d\r\n", - mbox_size, message_id, sender_address, recipients_count); + { + uschar * req_str = NULL; + int size = 0, len = 0; + const uschar * s; + + req_str = string_append(req_str, &size, &len, 8, + "CHECK RSPAMC/1.3\r\nContent-length: ", string_sprintf("%lu\r\n", mbox_size), + "Queue-Id: ", message_id, + "\r\nFrom: <", sender_address, + ">\r\nRecipient-Number: ", string_sprintf("%d\r\n", recipients_count)); + for (i = 0; i < recipients_count; i ++) - req_str = string_sprintf("%sRcpt: <%s>\r\n", req_str, recipients_list[i].address); - if ((helo = expand_string(US"$sender_helo_name")) != NULL && *helo != '\0') - req_str = string_sprintf("%sHelo: %s\r\n", req_str, helo); - if ((fcrdns = expand_string(US"$sender_host_name")) != NULL && *fcrdns != '\0') - req_str = string_sprintf("%sHostname: %s\r\n", req_str, fcrdns); - if (sender_host_address != NULL) - req_str = string_sprintf("%sIP: %s\r\n", req_str, sender_host_address); - if ((authid = expand_string(US"$authenticated_id")) != NULL && *authid != '\0') - req_str = string_sprintf("%sUser: %s\r\n", req_str, authid); - req_str = string_sprintf("%s\r\n", req_str); - wrote = send(spamd_sock, req_str, Ustrlen(req_str), 0); + req_str = string_append(req_str, &size, &len, 3, + "Rcpt: <", recipients_list[i].address, ">\r\n"); + if ((s = expand_string(US"$sender_helo_name")) && *s) + req_str = string_append(req_str, &size, &len, 3, "Helo: ", s, "\r\n"); + if ((s = expand_string(US"$sender_host_name")) && *s) + req_str = string_append(req_str, &size, &len, 3, "Hostname: ", s, "\r\n"); + if (sender_host_address) + req_str = string_append(req_str, &size, &len, 3, "IP: ", sender_host_address, "\r\n"); + if ((s = expand_string(US"$authenticated_id")) && *s) + req_str = string_append(req_str, &size, &len, 3, "User: ", s, "\r\n"); + req_str = string_catn(req_str, &size, &len, "\r\n", 2); + wrote = send(spamd_sock, req_str, len, 0); } else { /* spamassassin variant */ -- 2.25.1