httpd: fix proxy mode bug (annoying but harmless), better help text

function                                             old     new   delta
cgi_io_loop_and_exit                                 594     635     +41
packed_usage                                       26815   26841     +26
handle_incoming_and_exit                            2745    2739      -6

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

diff --git a/include/usage.h b/include/usage.h
index cf576c6..f4ab39b 100644 (file)
--- a/include/usage.h
+++ b/include/usage.h
@@ -1786,13 +1786,13 @@
      "\n       -i              Inetd mode" \
      "\n       -f              Don't daemonize" \
      "\n       -v[v]           Verbose" \
-     "\n       -c FILE         Configuration file (default httpd.conf)" \
      "\n       -p [IP:]PORT    Bind to ip:port (default *:80)" \
        IF_FEATURE_HTTPD_SETUID( \
      "\n       -u USER[:GRP]   Set uid/gid after binding to port") \
        IF_FEATURE_HTTPD_BASIC_AUTH( \
      "\n       -r REALM        Authentication Realm for Basic Authentication") \
      "\n       -h HOME         Home directory (default .)" \
+     "\n       -c FILE         Configuration file (default {/etc,HOME}/httpd.conf)" \
        IF_FEATURE_HTTPD_AUTH_MD5( \
      "\n       -m STRING       MD5 crypt STRING") \
      "\n       -e STRING       HTML encode STRING" \

diff --git a/networking/httpd.c b/networking/httpd.c
index 8834c1c..6dbc219 100644 (file)
--- a/networking/httpd.c
+++ b/networking/httpd.c
@@ -1145,13 +1145,14 @@ static NOINLINE void cgi_io_loop_and_exit(int fromCgi_rd, int toCgi_wr, int post
                                /* post_len <= 0 && hdr_cnt <= 0:
                                 * no more POST data to CGI,
                                 * let CGI see EOF on CGI's stdin */
-                               close(toCgi_wr);
+                               if (toCgi_wr != fromCgi_rd)
+                                       close(toCgi_wr);
                                toCgi_wr = 0;
                        }
                }
 
                /* Now wait on the set of sockets */
-               count = safe_poll(pfd, 3, -1);
+               count = safe_poll(pfd, toCgi_wr ? TO_CGI+1 : FROM_CGI+1, -1);
                if (count <= 0) {
 #if 0
                        if (safe_waitpid(pid, &status, WNOHANG) <= 0) {
@@ -2103,8 +2104,7 @@ static void handle_incoming_and_exit(const len_and_sockaddr *fromAddr)
                header_ptr += 2;
                write(proxy_fd, header_buf, header_ptr - header_buf);
                free(header_buf); /* on the order of 8k, free it */
-               /* cgi_io_loop_and_exit needs to have two distinct fds */
-               cgi_io_loop_and_exit(proxy_fd, dup(proxy_fd), length);
+               cgi_io_loop_and_exit(proxy_fd, proxy_fd, length);
        }
 #endif