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ENH: the arguments to this function were not checked in a robust way

This commit is contained in:
Sebastien Barre 2006-03-21 17:47:11 -05:00
parent 07a0f51ffd
commit d82c979787
1 changed files with 13 additions and 5 deletions
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18
Source/kwsys/SystemTools.cxx
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@ -1918,7 +1918,7 @@ kwsys_stl::string SystemTools::FindProgram(
const kwsys_stl::vector<kwsys_stl::string>& userPaths, const kwsys_stl::vector<kwsys_stl::string>& userPaths,
bool no_system_path) bool no_system_path)
{ {
if(!nameIn) if(!nameIn || !*nameIn)
{ {
return ""; return "";
} }
@ -2245,9 +2245,9 @@ bool SystemTools::FindProgramPath(const char* argv0,
const char* installPrefix ) const char* installPrefix )
{ {
kwsys_stl::vector<kwsys_stl::string> failures; kwsys_stl::vector<kwsys_stl::string> failures;
kwsys_stl::string self = argv0; kwsys_stl::string self = argv0 ? argv0 : "";
failures.push_back(self);
SystemTools::ConvertToUnixSlashes(self); SystemTools::ConvertToUnixSlashes(self);
failures.push_back(argv0);
self = SystemTools::FindProgram(self.c_str()); self = SystemTools::FindProgram(self.c_str());
if(!SystemTools::FileExists(self.c_str())) if(!SystemTools::FileExists(self.c_str()))
{ {
@ -2279,8 +2279,16 @@ bool SystemTools::FindProgramPath(const char* argv0,
{ {
failures.push_back(self); failures.push_back(self);
kwsys_ios::ostringstream msg; kwsys_ios::ostringstream msg;
msg << "Can not find the command line program " << exeName << "\n"; msg << "Can not find the command line program ";
msg << " argv[0] = \"" << argv0 << "\"\n"; if (exeName)
{
msg << exeName;
}
msg << "\n";
if (argv0)
{
msg << " argv[0] = \"" << argv0 << "\"\n";
}
msg << " Attempted paths:\n"; msg << " Attempted paths:\n";
kwsys_stl::vector<kwsys_stl::string>::iterator i; kwsys_stl::vector<kwsys_stl::string>::iterator i;
for(i=failures.begin(); i != failures.end(); ++i) for(i=failures.begin(); i != failures.end(); ++i)