getgid -- Determine Real Group ID

SYNOPSIS

 #include <sys/types.h>
 #include <unistd.h>

 gid_t getgid(void);

DESCRIPTION

getgid determines the real group ID of the calling process.

RETURN VALUE

If successful, getgid returns the real group ID of the calling process. Under unusual conditions (for instance, if OpenEdition is not running) getegid can fail. In this case, getgid issues an MVS user ABEND 1230 to indicate the error.

EXAMPLE

The following code fragment illustrates the use of getgid to determine the real group ID of a calling process:

 #include <sys/types.h>
 #include <stdio.h>
 #include <unistd.h>

 .
 .
 .

 printf("The group ID is %d\n", (int) getgid());

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RELATED FUNCTIONS

getegid, getuid, setgid