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authorChris Caputo <ccaputo@alt.net>2009-06-02 18:37:11 +0100
committerPaul Jakma <paul@quagga.net>2009-06-02 18:38:24 +0100
commit42176e6b01c9ca2b2725952684b2d7792468e861 (patch)
tree2eb360778e96efe5ddc554a2b348e5e743030d61 /doc/mpls/.cvsignore
parent04d23314ddf950fefb3ff18306c7564bf4573a12 (diff)
[smux] 64-bit fix for lib/smux.h SNMP_INTEGER() macro
Macro SNMP_INTEGER() prepares data which is eventually processed by asn_build_int(). SNMP_INTEGER() was using "int32_t" whereas asn_build_int() uses "long". On 32-bit systems these are the same, both 4 bytes, but on x86 64-bit systems "long" is 8 bytes. asn_build_int()'s reaction to an improperly sized value is to return a NULL pointer. Quagga's smux.c would eventually get this NULL pointer and use it in calculations to determine how much data to send over the smux connection, resulting in garbage being sent to the SNMP agent. Corrected SNMP_INTEGER() to use "long". Tested on 32-bit and 64-bit x86 Linux 2.6.27.10 systems running Quagga 0.99.11 with bgpd smux.
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