GETUID
Section: Linux Programmer's Manual (2)
Updated: 1993-07-23
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NAME
getuid, geteuid - get user identity
SYNOPSIS
#include <unistd.h>
#include <sys/types.h>
uid_t getuid(void);
uid_t geteuid(void);
DESCRIPTION
getuid()
returns the real user ID of the calling process.
geteuid()
returns the effective user ID of the calling process.
ERRORS
These functions are always successful.
CONFORMING TO
POSIX.1-2001, 4.3BSD.
NOTES
History
In Unix V6 the
getuid()
call returned
(euid << 8) + uid.
Unix V7 introduced separate calls
getuid()
and
geteuid().
SEE ALSO
getresuid(2),
setreuid(2),
setuid(2),
credentials(7)
COLOPHON
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A description of the project,
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can be found at
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