[BUG] maintain_proxies must not disable backends

maintain_proxies could disable backends (p->maxconn == 0) which is
wrong (but apparently harmless). Add a check for p->maxconn == 0.
(cherry picked from commit d5382b4aaa099ce5ce2af5828bd4d6dc38e9e8ea)

diff --git a/src/proxy.c b/src/proxy.c
index 402fc88cf0757f637dddbc447c90074610961890..c0e7ab640c009796d8ae69ac428b9202cd65641c 100644 (file)
--- a/src/proxy.c
+++ b/src/proxy.c
@@ -314,7 +314,7 @@ void maintain_proxies(struct timeval *next)
        /* if there are enough free sessions, we'll activate proxies */
        if (actconn < global.maxconn) {
                while (p) {
-                       if (p->feconn < p->maxconn) {
+                       if (!p->maxconn || p->feconn < p->maxconn) {
                                if (p->state == PR_STIDLE) {
                                        for (l = p->listen; l != NULL; l = l->next)
                                                enable_listener(l);