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842279 - Incomplete command line in UCD-SNMP-MIB::extCommand
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commit e8e44b3faecdba5daedfb45d815fae65117d1b22
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Author: Jan Safranek <jsafranek@users.sourceforge.net>
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Date: Mon Sep 10 13:25:38 2012 +0200
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CHANGES: snmpd: fixed value of UCD-SNMP-MIB::extCommand to contain full command line.
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MIB description of UCD-SNMP-MIB::extCommand suggests it should contail full command line.
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Also in Net-SNMP 5.3.2.2, whole command line was shown.
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diff --git a/agent/mibgroup/agent/extend.c b/agent/mibgroup/agent/extend.c
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index 085d762..0b2c660 100644
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--- a/agent/mibgroup/agent/extend.c
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+++ b/agent/mibgroup/agent/extend.c
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@@ -44,6 +44,9 @@ unsigned int num_compatability_entries = 0;
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unsigned int max_compatability_entries = 50;
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netsnmp_old_extend *compatability_entries;
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+char *cmdlinebuf;
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+size_t cmdlinesize;
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+
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WriteMethod fixExec2Error;
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FindVarMethod var_extensible_old;
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oid old_extensible_variables_oid[] = { NETSNMP_UCDAVIS_MIB, NETSNMP_SHELLMIBNUM, 1 };
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@@ -1354,6 +1357,23 @@ handle_nsExtendOutput2Table(netsnmp_mib_handler *handler,
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*
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*************************/
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+char * _get_cmdline(netsnmp_extend *extend)
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+{
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+ size_t size;
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+
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+ size = strlen(extend->command) + strlen(extend->args) + 2;
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+ if (size > cmdlinesize) {
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+ cmdlinebuf = realloc(cmdlinebuf, size);
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+ if (!cmdlinebuf) {
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+ cmdlinesize = 0;
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+ return NULL;
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+ }
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+ cmdlinesize = size;
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+ }
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+ sprintf(cmdlinebuf, "%s %s", extend->command, extend->args);
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+ return cmdlinebuf;
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+}
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+
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u_char *
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var_extensible_old(struct variable * vp,
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oid * name,
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@@ -1364,6 +1384,7 @@ var_extensible_old(struct variable * vp,
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netsnmp_old_extend *exten = NULL;
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static long long_ret;
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unsigned int idx;
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+ char *cmdline;
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if (header_simple_table
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(vp, name, length, exact, var_len, write_method, num_compatability_entries))
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@@ -1382,8 +1403,10 @@ var_extensible_old(struct variable * vp,
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*var_len = strlen(exten->exec_entry->token);
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return ((u_char *) (exten->exec_entry->token));
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case SHELLCOMMAND:
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- *var_len = strlen(exten->exec_entry->command);
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- return ((u_char *) (exten->exec_entry->command));
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+ cmdline = _get_cmdline(exten->exec_entry);
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+ if (cmdline)
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+ *var_len = strlen(cmdline);
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+ return ((u_char *) cmdline);
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case ERRORFLAG: /* return code from the process */
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netsnmp_cache_check_and_reload( exten->exec_entry->cache );
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long_ret = exten->exec_entry->result;
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@@ -1406,8 +1429,10 @@ var_extensible_old(struct variable * vp,
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case ERRORFIXCMD:
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if (exten->efix_entry) {
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- *var_len = strlen(exten->efix_entry->command);
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- return ((u_char *) exten->efix_entry->command);
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+ cmdline = _get_cmdline(exten->efix_entry);
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+ if (cmdline)
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+ *var_len = strlen(cmdline);
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+ return ((u_char *) cmdline);
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} else {
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*var_len = 0;
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return ((u_char *) &long_return); /* Just needs to be non-null! */
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