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


This page is part of release 3.23 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.

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