[sane-devel] [sane-commit] CVS update of sane-backends (3 files)

[m. allan noah]

do you want getruid() ?

allan

On Sat, Dec 6, 2008 at 12:39 PM, Nicolas Martin
<nicolas.martin at freesurf.fr> wrote:
> Same on Ubuntu:
>
> $ ./getlgn
> method 1 getuid : user=nicolas
> method 2 geteuid: user=nicolas
> $ sudo ./getlgn
> [sudo] password for nicolas:
> method 1 getuid : user=root
> method 2 geteuid: user=root
>
> ?
>
> Le samedi 06 décembre 2008 à 18:27 +0100, E. MARC a écrit :
>> Le samedi 6 décembre 2008, à 18:10, Julien BLACHE a écrit :
>> > Nicolas Martin <nicolas.martin at freesurf.fr> wrote:
>> >
>> > Hi,
>> >
>> > >   struct passwd *uid;
>> > >   uid = getpwuid(geteuid());
>> > >   printf("user=%s\n", uid->pw_name);
>> > >
>> > > Prints my username correctly. Also prints root if runned with sudo ;-)
>> >
>> > Yep, use getuid() instead of geteuid() if you want to avoid that.
>> On debian, I get same result with both functions:
>>
>> #include <pwd.h>
>> #include <stdio.h>
>>
>> int main()
>> {
>>   struct passwd *uid;
>>   uid = getpwuid(getuid());
>>   printf("method 1 getuid : user=%s\n", uid->pw_name);
>>   uid = getpwuid(geteuid());
>>   printf("method 2 geteuid: user=%s\n", uid->pw_name);
>> }
>>
>> erwan at PC1:~$ ./myname
>> method 1 getuid : user=erwan
>> method 2 geteuid: user=erwan
>>
>> erwan at PC1:~$ sudo ./myname
>> method 1 getuid : user=root
>> method 2 geteuid: user=root
>>
>> Is there a bug?
>>
>> EM
>>
>> > Also, you want some error checking in there... :)
>> >
>> > JB.
>> >
>> > --
>> > Julien BLACHE                                   <http://www.jblache.org>
>> > <jb at jblache.org>                                  GPG KeyID 0xF5D65169
>>
>>
>
>
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