GETUID
Section: System Calls (2)
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BSD mandoc
BSD 4
NAME
getuid
geteuid
- get user identification
SYNOPSIS
Fd #include <sys/types.h>
Fd #include <unistd.h>
Ft uid_t
Fn getuid void
Ft uid_t
Fn geteuid void
DESCRIPTION
The
Fn getuid
function returns the real user ID of the calling process.
The
Fn geteuid
function
returns the effective user ID of the calling process.
The real user ID is that of the user who has invoked the program.
As the effective user ID
gives the process additional permissions during
execution of
``set-user-ID
''
mode processes,
Fn getuid
is used to determine the real-user-id of the calling process.
ERRORS
The
Fn getuid
and
Fn geteuid
functions are always successful, and no return value is reserved to
indicate an error.
SEE ALSO
getgid(2),
setreuid(2)
STANDARDS
Fn Geteuid
and
Fn getuid
functions conform to
St -p1003.1-88 .
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- ERRORS
-
- SEE ALSO
-
- STANDARDS
-
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Time: 16:28:59 GMT, April 18, 2022