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BUG: Fix GetRealPath when realpath fails

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This patch from Philip Lowman teaches SystemTools::GetRealPath to deal
with paths that do not exist by dealing with the case that realpath
returns NULL.  See issue #8423.
This commit is contained in:
Brad King 2009-02-09 09:23:13 -05:00
parent 67ddd0c837
commit ca096a4596
2 changed files with 17 additions and 3 deletions
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16
Source/kwsys/SystemTools.cxx
View File

@ -205,6 +205,10 @@ inline void Realpath(const char *path, kwsys_stl::string & resolved_path)
resolved_path = fullpath;
KWSYS_NAMESPACE::SystemTools::ConvertToUnixSlashes(resolved_path);
}
else
{
resolved_path = path;
}
}
#else
#include <sys/types.h>
@ -237,8 +241,16 @@ inline void Realpath(const char *path, kwsys_stl::string & resolved_path)
{
char resolved_name[KWSYS_SYSTEMTOOLS_MAXPATH];
realpath(path, resolved_name);
resolved_path = resolved_name;
char *ret = realpath(path, resolved_name);
if(ret)
{
resolved_path = ret;
}
else
{
// if path resolution fails, return what was passed in
resolved_path = path;
}
}
#endif

4
Source/kwsys/SystemTools.hxx.in
View File

@ -351,7 +351,9 @@ public:
const char* in_base);
/**
* Get the real path for a given path, removing all symlinks.
* Get the real path for a given path, removing all symlinks. In
* the event of an error (non-existent path, permissions issue,
* etc.) the original path is returned.
*/
static kwsys_stl::string GetRealPath(const char* path);