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Added a description of the algorithm.

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Return failure if the chmod() fails.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8326 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
John Criswell
2003-09-02 20:30:16 +00:00
parent d35b5b542d
commit 9adeccc552
2 changed files with 28 additions and 14 deletions
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21
lib/Support/FileUtilities.cpp
View File

@@ -98,12 +98,14 @@ std::string getUniqueFilename(const std::string &FilenameBase) {
/// ///
/// Description: /// Description:
/// This method makes the specified filename executable by giving it /// This method makes the specified filename executable by giving it
/// execute permission. /// execute permission. It respects the umask value of the process, and it
/// does not enable any unnecessary access bits.
/// ///
/// For the UNIX version of this method, we turn on all of the read and /// Algorithm:
/// execute bits and then turn off anything specified in the umask. This /// o Get file's current permissions.
/// should help ensure that access to the file remains at the level that /// o Get the process's current umask.
/// the user desires. /// o Take the set of all execute bits and disable those found in the umask.
/// o Add the remaining permissions to the file's permissions.
/// ///
bool bool
MakeFileExecutable (const std::string & Filename) MakeFileExecutable (const std::string & Filename)
@@ -134,8 +136,13 @@ MakeFileExecutable (const std::string & Filename)
return false; return false;
} }
// Make the script executable... //
chmod(Filename.c_str(), (fstat.st_mode | (0111 & ~mask))); // Make the file executable...
//
if ((chmod(Filename.c_str(), (fstat.st_mode | (0111 & ~mask)))) == -1)
{
return false;
}
return true; return true;
} }

21
support/lib/Support/FileUtilities.cpp
View File

@@ -98,12 +98,14 @@ std::string getUniqueFilename(const std::string &FilenameBase) {
/// ///
/// Description: /// Description:
/// This method makes the specified filename executable by giving it /// This method makes the specified filename executable by giving it
/// execute permission. /// execute permission. It respects the umask value of the process, and it
/// does not enable any unnecessary access bits.
/// ///
/// For the UNIX version of this method, we turn on all of the read and /// Algorithm:
/// execute bits and then turn off anything specified in the umask. This /// o Get file's current permissions.
/// should help ensure that access to the file remains at the level that /// o Get the process's current umask.
/// the user desires. /// o Take the set of all execute bits and disable those found in the umask.
/// o Add the remaining permissions to the file's permissions.
/// ///
bool bool
MakeFileExecutable (const std::string & Filename) MakeFileExecutable (const std::string & Filename)
@@ -134,8 +136,13 @@ MakeFileExecutable (const std::string & Filename)
return false; return false;
} }
// Make the script executable... //
chmod(Filename.c_str(), (fstat.st_mode | (0111 & ~mask))); // Make the file executable...
//
if ((chmod(Filename.c_str(), (fstat.st_mode | (0111 & ~mask)))) == -1)
{
return false;
}
return true; return true;
} }