DragonFly On-Line Manual Pages


GETGID(2)		 DragonFly System Calls Manual		     GETGID(2)

NAME

getgid, getegid -- get group process identification

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include <sys/types.h> #include <unistd.h> gid_t getgid(void); gid_t getegid(void);

DESCRIPTION

The getgid() function returns the real group ID of the calling process, getegid() returns the effective group ID of the calling process. The real group ID is specified at login time. The real group ID is the group of the user who invoked the program. As the effective group ID gives the process additional permissions during the execution of ``set-group-ID'' mode processes, getgid() is used to determine the real-user-id of the calling process.

ERRORS

The getgid() and getegid() functions are always successful, and no return value is reserved to indicate an error.

SEE ALSO

getuid(2), issetugid(2), setgid(2), setregid(2)

STANDARDS

The getgid() and getegid() function calls are expected to conform to ISO/IEC 9945-1:1990 (``POSIX.1''). DragonFly 3.7 June 4, 1993 DragonFly 3.7