The current libsmi parser segfaults when trying to parse a MIB file which puts column definitions directly under the SEQUENCE OF definition (which is wrong, there should be a SEQUENCE row entity). An example of such a MIB file is UCD-SNMP-MIB-OLD, where 'extensibleNames' is a direct descendant of 'extensible':
#0 strlen () at ../sysdeps/x86_64/strlen.S:106 #1 0x00007f1af29b1ced in _IO_vfprintf_internal (s=s@entry=0x7ffe8b90bee0, format=<optimized out>, format@entry=0x7f1af523b868 "SEQUENCE element #%d `%s' is not a child node under `%s'", ap=ap@entry=0x7ffe8b90c060) at vfprintf.c:1637 #2 0x00007f1af29d9543 in _IO_vasprintf (result_ptr=result_ptr@entry=0x7ffe8b90c020, format=0x7f1af523b868 "SEQUENCE element #%d `%s' is not a child node under `%s'", args=args@entry=0x7ffe8b90c060) at vasprintf.c:59 #3 0x00007f1af520de30 in smiVasprintf (strp=strp@entry=0x7ffe8b90c020, format=<optimized out>, ap=ap@entry=0x7ffe8b90c060) at smi.c:3090 #4 0x00007f1af5207d45 in printError (parser=0x7ffe8b90d7c0, id=<optimized out>, line=172, ap=ap@entry=0x7ffe8b90c060) at error.c:1126 #5 0x00007f1af52080bf in smiPrintErrorAtLine (parser=parser@entry=0x7ffe8b90d7c0, id=id@entry=194, line=<optimized out>) at error.c:1162 #6 0x00007f1af5224279 in checkObjects (modulePtr=<optimized out>, parserPtr=0x7ffe8b90c140) at parser-smi.y:578 #7 smiparse (parserPtr=parserPtr@entry=0x7ffe8b90d7c0) at parser-smi.y:1668 #8 0x00007f1af521159b in loadModule (modulename=modulename@entry=0x2be5838 "/usr/share/snmp/mibs/UCD-SNMP-MIB-OLD.mib", parserPtr=parserPtr@entry=0x0) at smi-data.c:4658 #9 0x00007f1af520c3ba in smiLoadModule (module=0x2be5838 "/usr/share/snmp/mibs/UCD-SNMP-MIB-OLD.mib") at smi.c:931
The following patch skips this failing parent comparison:
Index: lib/parser-smi.y =================================================================== 349a350
350a352
(objectPtr->typePtr->export.name == NULL ||
352c354 < objectPtr->typePtr->export.name)) { ---
objectPtr->typePtr->export.name))) {
354a357
objectPtr->export.name == NULL ? "N/A" :
578c581 < ((Object *)p->ptr)->export.name, ---
"N/A",
This is only masking the symptoms though; the resulting MIB structures cannot be used.
Best regards,
Olivier Verriest