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Bug #14679 Crash with RH ucd-snmp libs -- BUGFIX
Submitted: 2001-12-23 21:18 UTC Modified: 2002-01-27 05:19 UTC
From: hps at intermeta dot de Assigned:
Status: No Feedback Package: Reproducible crash
PHP Version: 4.0CVS-2001-12-23 OS: Linux
Private report: No CVE-ID: None
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 [2001-12-23 21:18 UTC] hps at intermeta dot de
hi,

this is the fix for the snmp crash with recent red hat 
libraries. Compile fix is to check for binit() in libsnmp
and if yes, use the following calls. Addition of binit()
check in configure.in is left as an exercise for the 
reader. ;-)


--- php-4.1.0/ext/snmp/snmp.c   Mon Dec 24 03:11:23 2001
+++ /tmp/snmp.c Mon Dec 24 03:10:55 2001
@@ -158,8 +158,9 @@
     int name_length;
     int status, count,rootlen=0,gotroot=0;
        oid root[MAX_NAME_LEN];
-       char buf[2048];
-       char buf2[2048];
+#define BUFSIZE 2048
+       char buf[BUFSIZE];
+       char buf2[BUFSIZE];
        int keepwalking=1;
        long timeout=SNMP_DEFAULT_TIMEOUT;
        long retries=SNMP_DEFAULT_RETRIES;
@@ -315,7 +316,7 @@
                                        }
 
                                        if (st != 11) {
-                                               sprint_value(buf,vars->name, vars->name_length, vars);
+                                               sprint_value(binit(NULL, buf, BUFSIZE) ,vars->name, vars->name_length, vars);
                                        }
 #if 0
                                        Debug("snmp response is: %s\n",buf);
@@ -325,7 +326,7 @@
                                        } else if (st == 2) {
                                                add_next_index_string(return_value,buf,1); /* Add to returned array */
                                        } else if (st == 3)  {
-                                               sprint_objid(buf2, vars->name, vars->name_length);
+                                               sprint_objid(binit(NULL, buf2, BUFSIZE), vars->name, vars->name_length);
                                                add_assoc_string(return_value,buf2,buf,1);
                                        }
                                        if (st >= 2 && st != 11) {
@@ -344,7 +345,7 @@
                                                for (count=1, vars = response->variables; vars && count != response->errindex;
                                                vars = vars->next_variable, count++);
                                                if (vars) {
-                                                       sprint_objid(buf,vars->name, vars->name_length);
+                                                       sprint_objid(binit(NULL, buf, BUFSIZE), vars->name, vars->name_length);
                                                }
                                                php_error(E_WARNING,"This name does not exist: %s\n",buf);
                                        }

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AllCommentsChangesGit/SVN commitsRelated reports
 [2001-12-24 03:17 UTC] mfischer@php.net
Please send the patch as attachment as a reply to this mail (line ending got fscked up). Also, next time please don't open a new report.
 [2002-01-06 07:46 UTC] sander@php.net
Has this patch been applied?
If not, can you send to patch to mfisher@php.net?
(btw: this patch is for bug #14462
 [2002-01-27 05:19 UTC] sander@php.net
No feedback.
 
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