NAME
getegid — get the
effective group ID
SYNOPSIS
#include
<unistd.h>
gid_t getegid(void);
DESCRIPTION
The getegid () function shall return the
effective group ID of the calling process.
RETURN VALUE
The getegid () function shall always be
successful and no return value is reserved to indicate an error.
ERRORS
No errors are defined.
EXAMPLES
None.
APPLICATION USAGE
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSO
geteuid(3), getgid(3), getuid(3), setegid(3), seteuid(3), setgid(3), setregid(3), setreuid(3), setuid(3), the Base Definitions volume of IEEE Std 1003.1-2001 (“POSIX.1”), <sys/types.h>, <unistd.h>
CHANGE HISTORY
First released in Issue 1. Derived from Issue 1 of the SVID.
Issue 6
In the SYNOPSIS, the optional include of the <sys/types.h> header is removed.
The following new requirements on POSIX implementations derive from alignment with the Single UNIX Specification:
- The requirement to include <sys/types.h> has been removed. Although <sys/types.h> was required for conforming implementations of previous POSIX specifications, it was not required for UNIX applications.
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