slirp: replace error_report() with g_critical()

Reduce dependency on QEMU. QEMU could use a custom log handler if it
wants to redirect/filter it.
Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: NSamuel Thibault <samuel.thibault@ens-lyon.org>

slirp/ip6_icmp.c

@@ -417,7 +417,7 @@ void icmp6_input(struct mbuf *m)
             icmp6_send_echoreply(m, slirp, ip, icmp);
         } else {
             /* TODO */
-            error_report("external icmpv6 not supported yet");
+            g_critical("external icmpv6 not supported yet");
         }
         break;
 

slirp/misc.c

@@ -119,7 +119,7 @@ slirp_socketpair_with_oob(int sv[2])
     return 0;
 
 err:
-    error_report("Error: slirp_socketpair(): %s", strerror(errno));
+    g_critical("slirp_socketpair(): %s", strerror(errno));
     if (s >= 0) {
         closesocket(s);
     }

slirp/slirp.c

@@ -1214,8 +1214,8 @@ static int sbuf_tmp_post_load(void *opaque, int version)
     }
     if (tmp->woff >= requested_len ||
         tmp->roff >= requested_len) {
-        error_report("invalid sbuf offsets r/w=%u/%u len=%u",
-                     tmp->roff, tmp->woff, requested_len);
+        g_critical("invalid sbuf offsets r/w=%u/%u len=%u",
+                   tmp->roff, tmp->woff, requested_len);
         return -EINVAL;
     }
 
@@ -1323,7 +1323,7 @@ static int ss_family_post_load(void *opaque, int version_id)
         tss->parent->ss.ss_family = AF_INET6;
         break;
     default:
-        error_report("invalid ss_family type %x", tss->portable_family);
+        g_critical("invalid ss_family type %x", tss->portable_family);
         return -EINVAL;
     }