Am 16.07.2014 07:33, schrieb Johannes Sixt:
> Am 16.07.2014 00:54, schrieb Karsten Blees:
>> There is no fchmod() on native Windows platforms (MinGW and MSVC), and the
>> equivalent Win32 API (SetFileInformationByHandle) requires Windows Vista.
>>
>> Use chmod() instead.
>>
>> Signed-off-by: Karsten Blees <bl...@dcon.de>
>> ---
>> config.c | 8 ++++----
>> 1 file changed, 4 insertions(+), 4 deletions(-)
>>
>> diff --git a/config.c b/config.c
>> index ba882a1..9767c4b 100644
>> --- a/config.c
>> +++ b/config.c
>> @@ -1636,8 +1636,8 @@ int git_config_set_multivar_in_file(const char
>> *config_filename,
>> MAP_PRIVATE, in_fd, 0);
>> close(in_fd);
>>
>> - if (fchmod(fd, st.st_mode & 07777) < 0) {
>> - error("fchmod on %s failed: %s",
>> + if (chmod(lock->filename, st.st_mode & 07777) < 0) {
>> + error("chmod on %s failed: %s",
>> lock->filename, strerror(errno));
>> ret = CONFIG_NO_WRITE;
>> goto out_free;
>> @@ -1815,8 +1815,8 @@ int git_config_rename_section_in_file(const char
>> *config_filename,
>>
>> fstat(fileno(config_file), &st);
>>
>> - if (fchmod(out_fd, st.st_mode & 07777) < 0) {
>> - ret = error("fchmod on %s failed: %s",
>> + if (chmod(lock->filename, st.st_mode & 07777) < 0) {
>> + ret = error("chmod on %s failed: %s",
>> lock->filename, strerror(errno));
>> goto out;
>> }
>>
>
> I assume you tested this patch on Windows. I am mildly surprised that
> (on Windows) chmod() works on a file that is still open.
>
> -- Hannes
>
Yes, file attributes can be set independently of open files. In fact, existing
code in git already does that in many places (via adjust_shared_perm(), which
is typically called while the file is open).
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