From: Michal Voců <michal@ruk.cuni.cz>
Date: Wed, 15 Feb 2006 14:19:33 +0000 (+0000)
Subject: * add sanity checks to recognize IL protocol from garbage (eg. SOAP)
X-Git-Tag: glite-lb-common_R_3_0_4~7
X-Git-Url: http://scientific.zcu.cz/git/?a=commitdiff_plain;h=befb55a220536af7518357c675384efd12b58c1b;p=jra1mw.git

* add sanity checks to recognize IL protocol from garbage (eg. SOAP)
---

diff --git a/org.glite.lb.common/src/il_msg.c b/org.glite.lb.common/src/il_msg.c
index 10f7a82..4154ee9 100644
--- a/org.glite.lb.common/src/il_msg.c
+++ b/org.glite.lb.common/src/il_msg.c
@@ -109,7 +109,7 @@ read_il_data(void *user_data,
 	     char **buffer, 
 	     int (*reader)(void *, char *, const int))
 {
-  char buf[17];
+	char buf[17], *p;
   int ret, len;
 
   /* read 17 byte header */
@@ -117,7 +117,23 @@ read_il_data(void *user_data,
   if(len < 0) {
     goto err;
   }
+
+  /* perform some sanity checks on the received header */
+  if(buf[16] != '\n') {
+	  len = -1;
+	  goto err;
+  }
   buf[16] = 0;
+  /* skip leading spaces */
+  for(p = buf; *p == ' '; p++);
+  /* skip digits */
+  for(; (*p >= '0') && (*p <= '9'); p++);
+  /* this must be the end of string */
+  if(*p != 0) {
+	  len = -1;
+	  goto err;
+  }
+
   if((len=atoi(buf)) <= 0) {
     len = -1;
     goto err;