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authorFernando Carvajal <fcarvajal@qindel.com>2016-04-25 12:53:00 +0200
committerFernando Carvajal <fcarvajal@qindel.com>2016-04-27 12:46:00 +0200
commita436cba04834da945d4a2be5335d1d7e95c6bf08 (patch)
treebcbcc29b01a86d2035e7397ded5b24b90c841645 /x2goagent.features
parent12104a232a6de163f7e871be288ac933083c4226 (diff)
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Clean up compiler warnings in nxcomp
This commit removes several warnings in nxcomp related to unused but set variables. It also replaces tempnam function with the more secure one mkstemp and there has been removed another warning related to setgid and setuid returning values not being checked. So these were the compiler warnings in nxcomp that have been fixed: Loop.cpp: In function ‘int ParseRemoteOptions(char*)’: Loop.cpp:9423:7: warning: variable ‘hasLimit’ set but not used [-Wunused-but-set-variable] int hasLimit = 0; ^ Loop.cpp:9424:7: warning: variable ‘hasRender’ set but not used [-Wunused-but-set-variable] int hasRender = 0; ^ Loop.cpp:9425:7: warning: variable ‘hasTaint’ set but not used [-Wunused-but-set-variable] int hasTaint = 0; ^ Loop.cpp:9427:7: warning: variable ‘hasStrict’ set but not used [-Wunused-but-set-variable] int hasStrict = 0; ^ Loop.cpp:9428:7: warning: variable ‘hasShseg’ set but not used [-Wunused-but-set-variable] int hasShseg = 0; ^ ServerChannel.cpp: In member function ‘virtual int ServerChannel::handleWrite(const unsigned char*, unsigned int)’: ServerChannel.cpp:2132:9: warning: variable ‘hit’ set but not used [-Wunused-but-set-variable] int hit; ^ Proxy.o: In function `Proxy::handleSaveAllStores(char const*) const': Proxy.cpp:(.text+0x2cac): warning: the use of `tempnam' is dangerous, better use `mkstemp' Pipe.cpp: In function ‘FILE* Popen(char* const*, const char*)’: Pipe.cpp:240:23: warning: ignoring return value of ‘int setgid(__gid_t)’, declared with attribute warn_unused_result [-Wunused-result] setgid(getgid()); ^ Pipe.cpp:241:23: warning: ignoring return value of ‘int setuid(__uid_t)’, declared with attribute warn_unused_result [-Wunused-result] setuid(getuid()); ^ There was also a hidden problem in the way Proxy::handleSaveAllStores was checking for an error in the returning value from the call to the virtual method handleSaveAllStores of the specific proxy class really being used (ClientProxy or ServerProxy). Former code was considering the value 0 as the returning value in case of an error whereas both subclasses return the value -1 when there is an error in their handleSaveAllStores method. This bug has been fixed in this commit taking advantage of the modification that was already being made to this method in order to replace tempnam function with the more secure one mkstemp. Fixes: ArcticaProject/nx-libs#103
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