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APAR NUMBER: PJ30708 PRODUCT: TPF4 FUNCTIONAL AREA: TCP/IP NATIVE STACK SHIPPED IN PUT: 20 ABSTRACT: A possible ECB heap memory leak can occur when using the inet_ntoa() function. APAR CONTENTS: FEATURE TYPE STATUS NAME Base CHeader Changed include/c$eb0eb.h Base LoadExecutable Changed load/oco/cmn040.exe Base LoadExecutable Changed load/oco/cmn540.exe Base DataMacro Changed macro/ieqce2.mac Base Copy Changed source/cp/base/chsz40.cpy Base C Changed source/rt/base/cintoa.c Base C Changed source/rt/base/cltu.c PREREQUISITE APARS: To be applied in order listed. Base CHeader Changed include/c$eb0eb.h PJ25294(09) PJ25632(09) PJ25589(09) PJ25684(09) PJ25459(09) PJ25780(09) PJ25696(10) PJ25722(10) PJ25983(10) PJ25981(10) PJ25962(10) PJ26150(10) PJ26162(11) PJ26441(11) PJ26468(11) PJ26575(11) PJ26683(11) PJ26600(11) PJ26581(11) PJ26775(12) PJ26746(12) PJ26793(12) PJ26914(12) PJ26721(12) PJ27298(13) PJ27383(13) PJ27393(13) PJ27445(14) PJ27530(14) PJ28118(15) PJ28218(16) PJ28195(16) PJ28526(17) PJ28623(17) PJ28649(17) PJ29515(18) PJ29921(19) PJ29962(19) PJ30282(20) Base LoadExecutable Changed load/oco/cmn040.exe PJ27966(15) PJ28195(16) PJ28224(16) PJ28396(16) PJ29077(18) PJ29501(18) PJ28994(19) PJ29755(19) PJ29632(19) PJ29883(19) PJ29440(19) PJ30025(19) PJ30259(20) Base LoadExecutable Changed load/oco/cmn540.exe PJ28396(16) PJ29077(18) PJ29501(18) PJ28994(19) PJ29755(19) PJ29632(19) PJ29440(19) PJ30025(19) PJ30259(20) Base DataMacro Changed macro/ieqce2.mac PJ25632(09) PJ25589(09) PJ25696(10) PJ25722(10) PJ25983(10) PJ25981(10) PJ26150(10) PJ26156(10) PJ26468(11) PJ26575(11) PJ26683(11) PJ26600(11) PJ26581(11) PJ26793(12) PJ27383(13) PJ28118(15) PJ28218(16) PJ28195(16) PJ28526(17) PJ28623(17) PJ28649(17) PJ29515(18) PJ29921(19) PJ30282(20) Base Copy Changed source/cp/base/chsz40.cpy PJ25294(09) PJ25632(09) PJ25589(09) PJ25684(09) PJ25459(09) PJ25981(10) PJ26008(10) PJ26188(10) PJ26281(11) PJ26575(11) PJ26683(11) PJ26600(11) PJ26581(11) PJ26746(12) PJ26818(12) PJ26793(12) PJ27383(13) PJ27393(13) PJ27530(14) PJ27746(14) PJ28218(16) PJ28195(16) PJ28649(17) PJ29515(18) PJ29573(19) PJ29921(19) PJ30236(20) PJ30213(20) PJ30282(20) PJ30352(20) Base C Changed source/rt/base/cltu.c PJ27785(15) PJ28586(17) COMMENTS: The inet_ntoa() function takes a hexadecimal IP address and converts it to displayable dotted decimal string. The malloc storage is used for the reply buffer to save the dotted decimal IP address. The address of this malloc storage is returned to the application and the malloc storage is never released. All subsequent inet_ntoa() calls will obtain a new malloc block for return to the application. If a long-running ECB issues enough inet_ntoa() functions, the ECB can run out of malloc storage. SOLUTION: The inet_ntoa() function has been updated to obtain malloc storage the first time the ECB issues the function and to reuse that malloc storage for all subsequent calls. DEPENDENCIES SEGMENTS TO BE ASSEMBLED OR COMPILED: CCNUCL SEGMENTS TO BE LINK EDITED: cltn40.exe (Shipped in Tar File) comx40.exe (Shipped in Tar File) cps040.exe COREQS: None. MIGRATION CONSIDERATIONS: None. UPDATED INFORMATION UNITS: None. See your IBM representative if you need additional information. DOWNLOAD INSTRUCTIONS: http://www.ibm.com/software/htp/tpf/pages/maint.htm -- END APAR PJ30708
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