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getuid(2)
NAME
  getuid, geteuid - Get the real or effective user ID

SYNOPSIS
  #include <unistd.h>

  uid_t getuid(
	  void );

  uid_t geteuid(
	  void );

  [Tru64 UNIX]	 Application developers may want to specify an #include
  statement for <sys/types.h> before the one for <unistd.h> if programs are
  being develped for multiple platforms. The additional #include statement is
  not required on Tru64 UNIX systems or by ISO or Open Group standards, but
  may be required on other vendors' systems that conform to these standards.

STANDARDS
  Interfaces documented on this reference page conform to industry standards
  as follows:

  getuid(), geteuid():	POSIX.1, XSH4.0, XSH4.2, XSH5.0

  Refer to standards(5) for more information about industry standards and
  associated tags.

DESCRIPTION
  The getuid() function returns the real user ID of the calling process.

  The geteuid() function returns the effective user ID of the calling
  process.

RETURN VALUES
  These functions are always successful, and no return value is reserved to
  indicate an error.

SEE ALSO
  Functions: setreuid(2), setruid(3), setuid(2)

  Standards: standards(5)

Index for Section 2

Alphabetical listing for G

Top of page